api.lib.php 283 KB

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  1. <?php
  2. /* For licensing terms, see /license.txt */
  3. use ChamiloSession as Session;
  4. use Chamilo\CourseBundle\Entity\CItemProperty;
  5. use Chamilo\UserBundle\Entity\User;
  6. use Symfony\Component\Finder\Finder;
  7. use Chamilo\CoreBundle\Entity\SettingsCurrent;
  8. /**
  9. * This is a code library for Chamilo.
  10. * It is included by default in every Chamilo file (through including the global.inc.php)
  11. * This library is in process of being transferred to src/Chamilo/CoreBundle/Component/Utils/ChamiloApi.
  12. * Whenever a function is transferred to the ChamiloApi class, the places where it is used should include
  13. * the "use Chamilo\CoreBundle\Component\Utils\ChamiloApi;" statement.
  14. * @package chamilo.library
  15. */
  16. /**
  17. * Constants declaration
  18. */
  19. // PHP version requirement.
  20. define('REQUIRED_PHP_VERSION', '5.5');
  21. define('REQUIRED_MIN_MEMORY_LIMIT', '128');
  22. define('REQUIRED_MIN_UPLOAD_MAX_FILESIZE', '10');
  23. define('REQUIRED_MIN_POST_MAX_SIZE', '10');
  24. // USER STATUS CONSTANTS
  25. /** global status of a user: student */
  26. define('STUDENT', 5);
  27. /** global status of a user: course manager */
  28. define('COURSEMANAGER', 1);
  29. /** global status of a user: session admin */
  30. define('SESSIONADMIN', 3);
  31. /** global status of a user: human ressource manager */
  32. define('DRH', 4);
  33. /** global status of a user: human ressource manager */
  34. define('ANONYMOUS', 6);
  35. /** global status of a user: low security, necessary for inserting data from
  36. * the teacher through HTMLPurifier */
  37. define('COURSEMANAGERLOWSECURITY', 10);
  38. // Soft user status
  39. define('PLATFORM_ADMIN', 11);
  40. define('SESSION_COURSE_COACH', 12);
  41. define('SESSION_GENERAL_COACH', 13);
  42. define('COURSE_STUDENT', 14); //student subscribed in a course
  43. define('SESSION_STUDENT', 15); //student subscribed in a session course
  44. define('COURSE_TUTOR', 16); // student is tutor of a course (NOT in session)
  45. define('STUDENT_BOSS', 17); // student is boss
  46. define('INVITEE', 20);
  47. define('HRM_REQUEST', 21); //HRM has request for vinculation with user
  48. // Table of status
  49. $_status_list[COURSEMANAGER] = 'teacher'; // 1
  50. $_status_list[SESSIONADMIN] = 'session_admin'; // 3
  51. $_status_list[DRH] = 'drh'; // 4
  52. $_status_list[STUDENT] = 'user'; // 5
  53. $_status_list[ANONYMOUS] = 'anonymous'; // 6
  54. $_status_list[INVITEE] = 'invited'; // 20
  55. // COURSE VISIBILITY CONSTANTS
  56. /** only visible for course admin */
  57. define('COURSE_VISIBILITY_CLOSED', 0);
  58. /** only visible for users registered in the course */
  59. define('COURSE_VISIBILITY_REGISTERED', 1);
  60. /** Open for all registered users on the platform */
  61. define('COURSE_VISIBILITY_OPEN_PLATFORM', 2);
  62. /** Open for the whole world */
  63. define('COURSE_VISIBILITY_OPEN_WORLD', 3);
  64. /** Invisible to all except admin */
  65. define('COURSE_VISIBILITY_HIDDEN', 4);
  66. define('COURSE_REQUEST_PENDING', 0);
  67. define('COURSE_REQUEST_ACCEPTED', 1);
  68. define('COURSE_REQUEST_REJECTED', 2);
  69. define('DELETE_ACTION_ENABLED', false);
  70. // EMAIL SENDING RECIPIENT CONSTANTS
  71. define('SEND_EMAIL_EVERYONE', 1);
  72. define('SEND_EMAIL_STUDENTS', 2);
  73. define('SEND_EMAIL_TEACHERS', 3);
  74. // SESSION VISIBILITY CONSTANTS
  75. define('SESSION_VISIBLE_READ_ONLY', 1);
  76. define('SESSION_VISIBLE', 2);
  77. define('SESSION_INVISIBLE', 3); // not available
  78. define('SESSION_AVAILABLE', 4);
  79. define('SESSION_LINK_TARGET', '_self');
  80. define('SUBSCRIBE_ALLOWED', 1);
  81. define('SUBSCRIBE_NOT_ALLOWED', 0);
  82. define('UNSUBSCRIBE_ALLOWED', 1);
  83. define('UNSUBSCRIBE_NOT_ALLOWED', 0);
  84. // SURVEY VISIBILITY CONSTANTS
  85. define('SURVEY_VISIBLE_TUTOR', 0);
  86. define('SURVEY_VISIBLE_TUTOR_STUDENT', 1);
  87. define('SURVEY_VISIBLE_PUBLIC', 2);
  88. // CONSTANTS defining all tools, using the english version
  89. /* When you add a new tool you must add it into function api_get_tools_lists() too */
  90. define('TOOL_DOCUMENT', 'document');
  91. define('TOOL_LP_FINAL_ITEM', 'final_item');
  92. define('TOOL_THUMBNAIL', 'thumbnail');
  93. define('TOOL_HOTPOTATOES', 'hotpotatoes');
  94. define('TOOL_CALENDAR_EVENT', 'calendar_event');
  95. define('TOOL_LINK', 'link');
  96. define('TOOL_LINK_CATEGORY', 'link_category');
  97. define('TOOL_COURSE_DESCRIPTION', 'course_description');
  98. define('TOOL_SEARCH', 'search');
  99. define('TOOL_LEARNPATH', 'learnpath');
  100. define('TOOL_LEARNPATH_CATEGORY', 'learnpath_category');
  101. define('TOOL_AGENDA', 'agenda');
  102. define('TOOL_ANNOUNCEMENT', 'announcement');
  103. define('TOOL_FORUM', 'forum');
  104. define('TOOL_FORUM_CATEGORY', 'forum_category');
  105. define('TOOL_FORUM_THREAD', 'forum_thread');
  106. define('TOOL_FORUM_POST', 'forum_post');
  107. define('TOOL_FORUM_ATTACH', 'forum_attachment');
  108. define('TOOL_FORUM_THREAD_QUALIFY', 'forum_thread_qualify');
  109. define('TOOL_THREAD', 'thread');
  110. define('TOOL_POST', 'post');
  111. define('TOOL_DROPBOX', 'dropbox');
  112. define('TOOL_QUIZ', 'quiz');
  113. define('TOOL_TEST_CATEGORY', 'test_category');
  114. define('TOOL_USER', 'user');
  115. define('TOOL_GROUP', 'group');
  116. define('TOOL_BLOGS', 'blog_management');
  117. define('TOOL_CHAT', 'chat');
  118. define('TOOL_STUDENTPUBLICATION', 'student_publication');
  119. define('TOOL_TRACKING', 'tracking');
  120. define('TOOL_HOMEPAGE_LINK', 'homepage_link');
  121. define('TOOL_COURSE_SETTING', 'course_setting');
  122. define('TOOL_BACKUP', 'backup');
  123. define('TOOL_COPY_COURSE_CONTENT', 'copy_course_content');
  124. define('TOOL_RECYCLE_COURSE', 'recycle_course');
  125. define('TOOL_COURSE_HOMEPAGE', 'course_homepage');
  126. define('TOOL_COURSE_RIGHTS_OVERVIEW', 'course_rights');
  127. define('TOOL_UPLOAD', 'file_upload');
  128. define('TOOL_COURSE_MAINTENANCE', 'course_maintenance');
  129. define('TOOL_SURVEY', 'survey');
  130. define('TOOL_WIKI', 'wiki');
  131. define('TOOL_GLOSSARY', 'glossary');
  132. define('TOOL_GRADEBOOK', 'gradebook');
  133. define('TOOL_NOTEBOOK', 'notebook');
  134. define('TOOL_ATTENDANCE', 'attendance');
  135. define('TOOL_COURSE_PROGRESS', 'course_progress');
  136. // CONSTANTS defining Chamilo interface sections
  137. define('SECTION_CAMPUS', 'mycampus');
  138. define('SECTION_COURSES', 'mycourses');
  139. define('SECTION_CATALOG', 'catalog');
  140. define('SECTION_MYPROFILE', 'myprofile');
  141. define('SECTION_MYAGENDA', 'myagenda');
  142. define('SECTION_COURSE_ADMIN', 'course_admin');
  143. define('SECTION_PLATFORM_ADMIN', 'platform_admin');
  144. define('SECTION_MYGRADEBOOK', 'mygradebook');
  145. define('SECTION_TRACKING', 'session_my_space');
  146. define('SECTION_SOCIAL', 'social-network');
  147. define('SECTION_DASHBOARD', 'dashboard');
  148. define('SECTION_REPORTS', 'reports');
  149. define('SECTION_GLOBAL', 'global');
  150. // CONSTANT name for local authentication source
  151. define('PLATFORM_AUTH_SOURCE', 'platform');
  152. define('CAS_AUTH_SOURCE', 'cas');
  153. define('LDAP_AUTH_SOURCE', 'extldap');
  154. // CONSTANT defining the default HotPotatoes files directory
  155. define('DIR_HOTPOTATOES', '/HotPotatoes_files');
  156. // event logs types
  157. define('LOG_COURSE_DELETE', 'course_deleted');
  158. define('LOG_COURSE_CREATE', 'course_created');
  159. // @todo replace 'soc_gr' with social_group
  160. define('LOG_GROUP_PORTAL_CREATED', 'soc_gr_created');
  161. define('LOG_GROUP_PORTAL_UPDATED', 'soc_gr_updated');
  162. define('LOG_GROUP_PORTAL_DELETED', 'soc_gr_deleted');
  163. define('LOG_GROUP_PORTAL_USER_DELETE_ALL', 'soc_gr_delete_users');
  164. define('LOG_GROUP_PORTAL_ID', 'soc_gr_portal_id');
  165. define('LOG_GROUP_PORTAL_REL_USER_ARRAY', 'soc_gr_user_array');
  166. define('LOG_GROUP_PORTAL_USER_SUBSCRIBED', 'soc_gr_u_subs');
  167. define('LOG_GROUP_PORTAL_USER_UNSUBSCRIBED', 'soc_gr_u_unsubs');
  168. define('LOG_GROUP_PORTAL_USER_UPDATE_ROLE', 'soc_gr_update_role');
  169. define('LOG_USER_DELETE', 'user_deleted');
  170. define('LOG_USER_CREATE', 'user_created');
  171. define('LOG_USER_ENABLE', 'user_enable');
  172. define('LOG_USER_DISABLE', 'user_disable');
  173. define('LOG_USER_FIELD_CREATE', 'user_field_created');
  174. define('LOG_USER_FIELD_DELETE', 'user_field_deleted');
  175. define('LOG_SESSION_CREATE', 'session_created');
  176. define('LOG_SESSION_DELETE', 'session_deleted');
  177. define('LOG_SESSION_ADD_USER_COURSE', 'session_add_user_course');
  178. define('LOG_SESSION_DELETE_USER_COURSE', 'session_delete_user_course');
  179. define('LOG_SESSION_DELETE_USER', 'session_delete_user');
  180. define('LOG_SESSION_ADD_COURSE', 'session_add_course');
  181. define('LOG_SESSION_DELETE_COURSE', 'session_delete_course');
  182. define('LOG_SESSION_CATEGORY_CREATE', 'session_cat_created'); //changed in 1.9.8
  183. define('LOG_SESSION_CATEGORY_DELETE', 'session_cat_deleted'); //changed in 1.9.8
  184. define('LOG_CONFIGURATION_SETTINGS_CHANGE', 'settings_changed');
  185. define('LOG_PLATFORM_LANGUAGE_CHANGE', 'platform_lng_changed'); //changed in 1.9.8
  186. define('LOG_SUBSCRIBE_USER_TO_COURSE', 'user_subscribed');
  187. define('LOG_UNSUBSCRIBE_USER_FROM_COURSE', 'user_unsubscribed');
  188. define('LOG_ATTEMPTED_FORCED_LOGIN', 'attempted_forced_login');
  189. define('LOG_HOMEPAGE_CHANGED', 'homepage_changed');
  190. define('LOG_PROMOTION_CREATE', 'promotion_created');
  191. define('LOG_PROMOTION_DELETE', 'promotion_deleted');
  192. define('LOG_CAREER_CREATE', 'career_created');
  193. define('LOG_CAREER_DELETE', 'career_deleted');
  194. define('LOG_USER_PERSONAL_DOC_DELETED', 'user_doc_deleted');
  195. define('LOG_WIKI_ACCESS', 'wiki_page_view');
  196. // All results from an exercise
  197. define('LOG_EXERCISE_RESULT_DELETE', 'exe_result_deleted');
  198. // Logs only the one attempt
  199. define('LOG_EXERCISE_ATTEMPT_DELETE', 'exe_attempt_deleted');
  200. define('LOG_LP_ATTEMPT_DELETE', 'lp_attempt_deleted');
  201. define('LOG_QUESTION_RESULT_DELETE', 'qst_attempt_deleted');
  202. define('LOG_MY_FOLDER_CREATE', 'my_folder_created');
  203. define('LOG_MY_FOLDER_CHANGE', 'my_folder_changed');
  204. define('LOG_MY_FOLDER_DELETE', 'my_folder_deleted');
  205. define('LOG_MY_FOLDER_COPY', 'my_folder_copied');
  206. define('LOG_MY_FOLDER_CUT', 'my_folder_cut');
  207. define('LOG_MY_FOLDER_PASTE', 'my_folder_pasted');
  208. define('LOG_MY_FOLDER_UPLOAD', 'my_folder_uploaded');
  209. // Event logs data types (max 20 chars)
  210. define('LOG_COURSE_CODE', 'course_code');
  211. define('LOG_COURSE_ID', 'course_id');
  212. define('LOG_USER_ID', 'user_id');
  213. define('LOG_USER_OBJECT', 'user_object');
  214. define('LOG_USER_FIELD_VARIABLE', 'user_field_variable');
  215. define('LOG_SESSION_ID', 'session_id');
  216. define('LOG_SESSION_CATEGORY_ID', 'session_category_id');
  217. define('LOG_CONFIGURATION_SETTINGS_CATEGORY', 'settings_category');
  218. define('LOG_CONFIGURATION_SETTINGS_VARIABLE', 'settings_variable');
  219. define('LOG_PLATFORM_LANGUAGE', 'default_platform_language');
  220. define('LOG_CAREER_ID', 'career_id');
  221. define('LOG_PROMOTION_ID', 'promotion_id');
  222. define('LOG_GRADEBOOK_LOCKED', 'gradebook_locked');
  223. define('LOG_GRADEBOOK_UNLOCKED', 'gradebook_unlocked');
  224. define('LOG_GRADEBOOK_ID', 'gradebook_id');
  225. define('LOG_WIKI_PAGE_ID', 'wiki_page_id');
  226. define('LOG_EXERCISE_ID', 'exercise_id');
  227. define('LOG_EXERCISE_AND_USER_ID', 'exercise_and_user_id');
  228. define('LOG_LP_ID', 'lp_id');
  229. define('LOG_EXERCISE_ATTEMPT_QUESTION_ID', 'exercise_a_q_id');
  230. define('LOG_EXERCISE_ATTEMPT', 'exe_id');
  231. define('LOG_WORK_DIR_DELETE', 'work_dir_delete');
  232. define('LOG_WORK_FILE_DELETE', 'work_file_delete');
  233. define('LOG_WORK_DATA', 'work_data_array');
  234. define('LOG_MY_FOLDER_PATH', 'path');
  235. define('LOG_MY_FOLDER_NEW_PATH', 'new_path');
  236. define('USERNAME_PURIFIER', '/[^0-9A-Za-z_\.]/');
  237. //used when login_is_email setting is true
  238. define('USERNAME_PURIFIER_MAIL', '/[^0-9A-Za-z_\.@]/');
  239. define('USERNAME_PURIFIER_SHALLOW', '/\s/');
  240. // This constant is a result of Windows OS detection, it has a boolean value:
  241. // true whether the server runs on Windows OS, false otherwise.
  242. define('IS_WINDOWS_OS', api_is_windows_os());
  243. // Checks for installed optional php-extensions.
  244. define('INTL_INSTALLED', function_exists('intl_get_error_code')); // intl extension (from PECL), it is installed by default as of PHP 5.3.0
  245. define('ICONV_INSTALLED', function_exists('iconv')); // iconv extension, for PHP5 on Windows it is installed by default.
  246. define('MBSTRING_INSTALLED', function_exists('mb_strlen')); // mbstring extension.
  247. // Patterns for processing paths. // Examples:
  248. define('REPEATED_SLASHES_PURIFIER', '/\/{2,}/'); // $path = preg_replace(REPEATED_SLASHES_PURIFIER, '/', $path);
  249. define('VALID_WEB_PATH', '/https?:\/\/[^\/]*(\/.*)?/i'); // $is_valid_path = preg_match(VALID_WEB_PATH, $path);
  250. define('VALID_WEB_SERVER_BASE', '/https?:\/\/[^\/]*/i'); // $new_path = preg_replace(VALID_WEB_SERVER_BASE, $new_base, $path);
  251. // Constants for api_get_path() and api_get_path_type(), etc. - registered path types.
  252. // basic (leaf elements)
  253. define('REL_CODE_PATH', 'REL_CODE_PATH');
  254. define('REL_COURSE_PATH', 'REL_COURSE_PATH');
  255. define('REL_HOME_PATH', 'REL_HOME_PATH');
  256. // Constants for api_get_path() and api_get_path_type(), etc. - registered path types.
  257. define('WEB_PATH', 'WEB_PATH');
  258. define('WEB_APP_PATH', 'WEB_APP_PATH');
  259. define('SYS_PATH', 'SYS_PATH');
  260. define('SYS_APP_PATH', 'SYS_APP_PATH');
  261. define('SYS_UPLOAD_PATH', 'SYS_UPLOAD_PATH');
  262. define('WEB_UPLOAD_PATH', 'WEB_UPLOAD_PATH');
  263. define('REL_PATH', 'REL_PATH');
  264. define('WEB_COURSE_PATH', 'WEB_COURSE_PATH');
  265. define('SYS_COURSE_PATH', 'SYS_COURSE_PATH');
  266. define('WEB_CODE_PATH', 'WEB_CODE_PATH');
  267. define('SYS_CODE_PATH', 'SYS_CODE_PATH');
  268. define('SYS_LANG_PATH', 'SYS_LANG_PATH');
  269. define('WEB_IMG_PATH', 'WEB_IMG_PATH');
  270. define('WEB_CSS_PATH', 'WEB_CSS_PATH');
  271. define('WEB_PUBLIC_PATH', 'WEB_PUBLIC_PATH');
  272. define('SYS_CSS_PATH', 'SYS_CSS_PATH');
  273. define('SYS_PLUGIN_PATH', 'SYS_PLUGIN_PATH');
  274. define('WEB_PLUGIN_PATH', 'WEB_PLUGIN_PATH');
  275. define('SYS_ARCHIVE_PATH', 'SYS_ARCHIVE_PATH');
  276. define('WEB_ARCHIVE_PATH', 'WEB_ARCHIVE_PATH');
  277. define('SYS_INC_PATH', 'SYS_INC_PATH');
  278. define('LIBRARY_PATH', 'LIBRARY_PATH');
  279. define('CONFIGURATION_PATH', 'CONFIGURATION_PATH');
  280. define('WEB_LIBRARY_PATH', 'WEB_LIBRARY_PATH');
  281. define('WEB_LIBRARY_JS_PATH', 'WEB_LIBRARY_JS_PATH');
  282. define('WEB_AJAX_PATH', 'WEB_AJAX_PATH');
  283. define('SYS_TEST_PATH', 'SYS_TEST_PATH');
  284. define('WEB_TEMPLATE_PATH', 'WEB_TEMPLATE_PATH');
  285. define('SYS_TEMPLATE_PATH', 'SYS_TEMPLATE_PATH');
  286. define('SYS_PUBLIC_PATH', 'SYS_PUBLIC_PATH');
  287. define('SYS_HOME_PATH', 'SYS_HOME_PATH');
  288. define('WEB_HOME_PATH', 'WEB_HOME_PATH');
  289. define('WEB_FONTS_PATH', 'WEB_FONTS_PATH');
  290. define('SYS_FONTS_PATH', 'SYS_FONTS_PATH');
  291. define('SYS_DEFAULT_COURSE_DOCUMENT_PATH', 'SYS_DEFAULT_COURSE_DOCUMENT_PATH');
  292. define('REL_DEFAULT_COURSE_DOCUMENT_PATH', 'REL_DEFAULT_COURSE_DOCUMENT_PATH');
  293. define('WEB_DEFAULT_COURSE_DOCUMENT_PATH', 'WEB_DEFAULT_COURSE_DOCUMENT_PATH');
  294. // Relations type with Course manager
  295. define('COURSE_RELATION_TYPE_COURSE_MANAGER', 1);
  296. define('SESSION_RELATION_TYPE_COURSE_MANAGER', 1);
  297. // Relations type with Human resources manager
  298. define('COURSE_RELATION_TYPE_RRHH', 1);
  299. define('SESSION_RELATION_TYPE_RRHH', 1);
  300. //User image sizes
  301. define('USER_IMAGE_SIZE_ORIGINAL', 1);
  302. define('USER_IMAGE_SIZE_BIG', 2);
  303. define('USER_IMAGE_SIZE_MEDIUM', 3);
  304. define('USER_IMAGE_SIZE_SMALL', 4);
  305. // Relation type between users
  306. define('USER_UNKNOWN', 0);
  307. define('USER_RELATION_TYPE_UNKNOWN', 1);
  308. define('USER_RELATION_TYPE_PARENT', 2); // should be deprecated is useless
  309. define('USER_RELATION_TYPE_FRIEND', 3);
  310. define('USER_RELATION_TYPE_GOODFRIEND', 4); // should be deprecated is useless
  311. define('USER_RELATION_TYPE_ENEMY', 5); // should be deprecated is useless
  312. define('USER_RELATION_TYPE_DELETED', 6);
  313. define('USER_RELATION_TYPE_RRHH', 7);
  314. define('USER_RELATION_TYPE_BOSS', 8);
  315. define('USER_RELATION_TYPE_HRM_REQUEST', 9);
  316. // Gradebook link constants
  317. // Please do not change existing values, they are used in the database !
  318. define('GRADEBOOK_ITEM_LIMIT', 1000);
  319. define('LINK_EXERCISE', 1);
  320. define('LINK_DROPBOX', 2);
  321. define('LINK_STUDENTPUBLICATION', 3);
  322. define('LINK_LEARNPATH', 4);
  323. define('LINK_FORUM_THREAD', 5);
  324. //define('LINK_WORK',6);
  325. define('LINK_ATTENDANCE', 7);
  326. define('LINK_SURVEY', 8);
  327. define('LINK_HOTPOTATOES', 9);
  328. // Score display types constants
  329. define('SCORE_DIV', 1); // X / Y
  330. define('SCORE_PERCENT', 2); // XX %
  331. define('SCORE_DIV_PERCENT', 3); // X / Y (XX %)
  332. define('SCORE_AVERAGE', 4); // XX %
  333. define('SCORE_DECIMAL', 5); // 0.50 (X/Y)
  334. define('SCORE_BAR', 6); // Uses the Display::bar_progress function
  335. define('SCORE_SIMPLE', 7); // X
  336. define('SCORE_IGNORE_SPLIT', 8); // ??
  337. define('SCORE_DIV_PERCENT_WITH_CUSTOM', 9); // X / Y (XX %) - Good!
  338. define('SCORE_CUSTOM', 10); // Good!
  339. define('SCORE_DIV_SIMPLE_WITH_CUSTOM', 11); // X - Good!
  340. define('SCORE_DIV_SIMPLE_WITH_CUSTOM_LETTERS', 12); // X - Good!
  341. define('SCORE_ONLY_SCORE', 13); // X - Good!
  342. define('SCORE_BOTH', 1);
  343. define('SCORE_ONLY_DEFAULT', 2);
  344. define('SCORE_ONLY_CUSTOM', 3);
  345. // From display.lib.php
  346. define('MAX_LENGTH_BREADCRUMB', 100);
  347. define('ICON_SIZE_ATOM', 8);
  348. define('ICON_SIZE_TINY', 16);
  349. define('ICON_SIZE_SMALL', 22);
  350. define('ICON_SIZE_MEDIUM', 32);
  351. define('ICON_SIZE_LARGE', 48);
  352. define('ICON_SIZE_BIG', 64);
  353. define('ICON_SIZE_HUGE', 128);
  354. define('SHOW_TEXT_NEAR_ICONS', false);
  355. // Session catalog
  356. define('CATALOG_COURSES', 0);
  357. define('CATALOG_SESSIONS', 1);
  358. define('CATALOG_COURSES_SESSIONS', 2);
  359. // Hook type events, pre-process and post-process.
  360. // All means to be executed for both hook event types
  361. define('HOOK_EVENT_TYPE_PRE', 0);
  362. define('HOOK_EVENT_TYPE_POST', 1);
  363. define('HOOK_EVENT_TYPE_ALL', 10);
  364. define('CAREER_STATUS_ACTIVE', 1);
  365. define('CAREER_STATUS_INACTIVE', 0);
  366. define('PROMOTION_STATUS_ACTIVE', 1);
  367. define('PROMOTION_STATUS_INACTIVE', 0);
  368. // Group permissions
  369. define('GROUP_PERMISSION_OPEN', '1');
  370. define('GROUP_PERMISSION_CLOSED', '2');
  371. // Group user permissions
  372. define('GROUP_USER_PERMISSION_ADMIN', '1'); // the admin of a group
  373. define('GROUP_USER_PERMISSION_READER', '2'); // a normal user
  374. define('GROUP_USER_PERMISSION_PENDING_INVITATION', '3'); // When an admin/moderator invites a user
  375. define('GROUP_USER_PERMISSION_PENDING_INVITATION_SENT_BY_USER', '4'); // an user joins a group
  376. define('GROUP_USER_PERMISSION_MODERATOR', '5'); // a moderator
  377. define('GROUP_USER_PERMISSION_ANONYMOUS', '6'); // an anonymous user
  378. define('GROUP_USER_PERMISSION_HRM', '7'); // a human resources manager
  379. define('GROUP_IMAGE_SIZE_ORIGINAL', 1);
  380. define('GROUP_IMAGE_SIZE_BIG', 2);
  381. define('GROUP_IMAGE_SIZE_MEDIUM', 3);
  382. define('GROUP_IMAGE_SIZE_SMALL', 4);
  383. define('GROUP_TITLE_LENGTH', 50);
  384. // Exercise
  385. // @todo move into a class
  386. define('ALL_ON_ONE_PAGE', 1);
  387. define('ONE_PER_PAGE', 2);
  388. define('EXERCISE_FEEDBACK_TYPE_END', 0); //Feedback - show score and expected answers
  389. define('EXERCISE_FEEDBACK_TYPE_DIRECT', 1); //DirectFeedback - Do not show score nor answers
  390. define('EXERCISE_FEEDBACK_TYPE_EXAM', 2); //NoFeedback - Show score only
  391. define('RESULT_DISABLE_SHOW_SCORE_AND_EXPECTED_ANSWERS', 0); //show score and expected answers
  392. define('RESULT_DISABLE_NO_SCORE_AND_EXPECTED_ANSWERS', 1); //Do not show score nor answers
  393. define('RESULT_DISABLE_SHOW_SCORE_ONLY', 2); //Show score only
  394. define('RESULT_DISABLE_SHOW_FINAL_SCORE_ONLY_WITH_CATEGORIES', 3); //Show final score only with categories
  395. define('RESULT_DISABLE_SHOW_SCORE_ATTEMPT_SHOW_ANSWERS_LAST_ATTEMPT', 4); //Show final score only with categories
  396. define('EXERCISE_MAX_NAME_SIZE', 80);
  397. // Question types (edit next array as well when adding values)
  398. // @todo move into a class
  399. define('UNIQUE_ANSWER', 1);
  400. define('MULTIPLE_ANSWER', 2);
  401. define('FILL_IN_BLANKS', 3);
  402. define('MATCHING', 4);
  403. define('FREE_ANSWER', 5);
  404. define('HOT_SPOT', 6);
  405. define('HOT_SPOT_ORDER', 7);
  406. define('HOT_SPOT_DELINEATION', 8);
  407. define('MULTIPLE_ANSWER_COMBINATION', 9);
  408. define('UNIQUE_ANSWER_NO_OPTION', 10);
  409. define('MULTIPLE_ANSWER_TRUE_FALSE', 11);
  410. define('MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE', 12);
  411. define('ORAL_EXPRESSION', 13);
  412. define('GLOBAL_MULTIPLE_ANSWER', 14);
  413. define('MEDIA_QUESTION', 15);
  414. define('CALCULATED_ANSWER', 16);
  415. define('UNIQUE_ANSWER_IMAGE', 17);
  416. define('DRAGGABLE', 18);
  417. define('MATCHING_DRAGGABLE', 19);
  418. define('ANNOTATION', 20);
  419. define('READING_COMPREHENSION', 21);
  420. define('EXERCISE_CATEGORY_RANDOM_SHUFFLED', 1);
  421. define('EXERCISE_CATEGORY_RANDOM_ORDERED', 2);
  422. define('EXERCISE_CATEGORY_RANDOM_DISABLED', 0);
  423. // Question selection type
  424. define('EX_Q_SELECTION_ORDERED', 1);
  425. define('EX_Q_SELECTION_RANDOM', 2);
  426. define('EX_Q_SELECTION_CATEGORIES_ORDERED_QUESTIONS_ORDERED', 3);
  427. define('EX_Q_SELECTION_CATEGORIES_RANDOM_QUESTIONS_ORDERED', 4);
  428. define('EX_Q_SELECTION_CATEGORIES_ORDERED_QUESTIONS_RANDOM', 5);
  429. define('EX_Q_SELECTION_CATEGORIES_RANDOM_QUESTIONS_RANDOM', 6);
  430. define('EX_Q_SELECTION_CATEGORIES_RANDOM_QUESTIONS_ORDERED_NO_GROUPED', 7);
  431. define('EX_Q_SELECTION_CATEGORIES_RANDOM_QUESTIONS_RANDOM_NO_GROUPED', 8);
  432. define('EX_Q_SELECTION_CATEGORIES_ORDERED_BY_PARENT_QUESTIONS_ORDERED', 9);
  433. define('EX_Q_SELECTION_CATEGORIES_ORDERED_BY_PARENT_QUESTIONS_RANDOM', 10);
  434. // one big string with all question types, for the validator in pear/HTML/QuickForm/Rule/QuestionType
  435. define('QUESTION_TYPES',
  436. UNIQUE_ANSWER.':'.
  437. MULTIPLE_ANSWER.':'.
  438. FILL_IN_BLANKS.':'.
  439. MATCHING.':'.
  440. FREE_ANSWER.':'.
  441. HOT_SPOT.':'.
  442. HOT_SPOT_ORDER.':'.
  443. HOT_SPOT_DELINEATION.':'.
  444. MULTIPLE_ANSWER_COMBINATION.':'.
  445. UNIQUE_ANSWER_NO_OPTION.':'.
  446. MULTIPLE_ANSWER_TRUE_FALSE.':'.
  447. MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE.':'.
  448. ORAL_EXPRESSION.':'.
  449. GLOBAL_MULTIPLE_ANSWER.':'.
  450. MEDIA_QUESTION.':'.
  451. CALCULATED_ANSWER.':'.
  452. UNIQUE_ANSWER_IMAGE.':'.
  453. DRAGGABLE.':'.
  454. MATCHING_DRAGGABLE.':'.
  455. ANNOTATION
  456. );
  457. //Some alias used in the QTI exports
  458. define('MCUA', 1);
  459. define('TF', 1);
  460. define('MCMA', 2);
  461. define('FIB', 3);
  462. // Skills
  463. define('SKILL_TYPE_REQUIREMENT', 'required');
  464. define('SKILL_TYPE_ACQUIRED', 'acquired');
  465. define('SKILL_TYPE_BOTH', 'both');
  466. // Message
  467. define('MESSAGE_STATUS_NEW', '0');
  468. define('MESSAGE_STATUS_UNREAD', '1');
  469. //2 ??
  470. define('MESSAGE_STATUS_DELETED', '3');
  471. define('MESSAGE_STATUS_OUTBOX', '4');
  472. define('MESSAGE_STATUS_INVITATION_PENDING', '5');
  473. define('MESSAGE_STATUS_INVITATION_ACCEPTED', '6');
  474. define('MESSAGE_STATUS_INVITATION_DENIED', '7');
  475. define('MESSAGE_STATUS_WALL', '8');
  476. define('MESSAGE_STATUS_WALL_DELETE', '9');
  477. define('MESSAGE_STATUS_WALL_POST', '10');
  478. define('MESSAGE_STATUS_CONVERSATION', '11');
  479. // Images
  480. define('IMAGE_WALL_SMALL_SIZE', 200);
  481. define('IMAGE_WALL_MEDIUM_SIZE', 500);
  482. define('IMAGE_WALL_BIG_SIZE', 2000);
  483. define('IMAGE_WALL_SMALL', 'small');
  484. define('IMAGE_WALL_MEDIUM', 'medium');
  485. define('IMAGE_WALL_BIG', 'big');
  486. // Social PLUGIN PLACES
  487. define('SOCIAL_LEFT_PLUGIN', 1);
  488. define('SOCIAL_CENTER_PLUGIN', 2);
  489. define('SOCIAL_RIGHT_PLUGIN', 3);
  490. define('CUT_GROUP_NAME', 50);
  491. /**
  492. * FormValidator Filter
  493. */
  494. define('NO_HTML', 1);
  495. define('STUDENT_HTML', 2);
  496. define('TEACHER_HTML', 3);
  497. define('STUDENT_HTML_FULLPAGE', 4);
  498. define('TEACHER_HTML_FULLPAGE', 5);
  499. // Timeline
  500. define('TIMELINE_STATUS_ACTIVE', '1');
  501. define('TIMELINE_STATUS_INACTIVE', '2');
  502. // Event email template class
  503. define('EVENT_EMAIL_TEMPLATE_ACTIVE', 1);
  504. define('EVENT_EMAIL_TEMPLATE_INACTIVE', 0);
  505. // Course home
  506. define('SHORTCUTS_HORIZONTAL', 0);
  507. define('SHORTCUTS_VERTICAL', 1);
  508. // Image class
  509. define('IMAGE_PROCESSOR', 'gd'); // 'imagick' or 'gd' strings
  510. // Course copy
  511. define('FILE_SKIP', 1);
  512. define('FILE_RENAME', 2);
  513. define('FILE_OVERWRITE', 3);
  514. define('UTF8_CONVERT', false); //false by default
  515. define('DOCUMENT', 'file');
  516. define('FOLDER', 'folder');
  517. define('RESOURCE_ASSET', 'asset');
  518. define('RESOURCE_DOCUMENT', 'document');
  519. define('RESOURCE_GLOSSARY', 'glossary');
  520. define('RESOURCE_EVENT', 'calendar_event');
  521. define('RESOURCE_LINK', 'link');
  522. define('RESOURCE_COURSEDESCRIPTION', 'course_description');
  523. define('RESOURCE_LEARNPATH', 'learnpath');
  524. define('RESOURCE_ANNOUNCEMENT', 'announcement');
  525. define('RESOURCE_FORUM', 'forum');
  526. define('RESOURCE_FORUMTOPIC', 'thread');
  527. define('RESOURCE_FORUMPOST', 'post');
  528. define('RESOURCE_QUIZ', 'quiz');
  529. define('RESOURCE_TEST_CATEGORY', 'test_category');
  530. define('RESOURCE_QUIZQUESTION', 'Exercise_Question');
  531. define('RESOURCE_TOOL_INTRO', 'Tool introduction');
  532. define('RESOURCE_LINKCATEGORY', 'Link_Category');
  533. define('RESOURCE_FORUMCATEGORY', 'Forum_Category');
  534. define('RESOURCE_SCORM', 'Scorm');
  535. define('RESOURCE_SURVEY', 'survey');
  536. define('RESOURCE_SURVEYQUESTION', 'survey_question');
  537. define('RESOURCE_SURVEYINVITATION', 'survey_invitation');
  538. define('RESOURCE_WIKI', 'wiki');
  539. define('RESOURCE_THEMATIC', 'thematic');
  540. define('RESOURCE_ATTENDANCE', 'attendance');
  541. define('RESOURCE_WORK', 'work');
  542. define('RESOURCE_SESSION_COURSE', 'session_course');
  543. define('RESOURCE_GRADEBOOK', 'gradebook');
  544. define('ADD_THEMATIC_PLAN', 6);
  545. // Max online users to show per page (whoisonline)
  546. define('MAX_ONLINE_USERS', 12);
  547. // Number of characters maximum to show in preview of course blog posts
  548. define('BLOG_MAX_PREVIEW_CHARS', 800);
  549. // HTML string to replace with a 'Read more...' link
  550. define('BLOG_PAGE_BREAK', '<div style="page-break-after: always"><span style="display: none;">&nbsp;</span></div>');
  551. // Make sure the CHAMILO_LOAD_WYSIWYG constant is defined
  552. // To remove CKeditor libs from HTML, set this constant to true before loading
  553. if (!defined('CHAMILO_LOAD_WYSIWYG')) {
  554. define('CHAMILO_LOAD_WYSIWYG', true);
  555. }
  556. /* Constants for course home */
  557. define('TOOL_PUBLIC', 'Public');
  558. define('TOOL_PUBLIC_BUT_HIDDEN', 'PublicButHide');
  559. define('TOOL_COURSE_ADMIN', 'courseAdmin');
  560. define('TOOL_PLATFORM_ADMIN', 'platformAdmin');
  561. define('TOOL_AUTHORING', 'toolauthoring');
  562. define('TOOL_INTERACTION', 'toolinteraction');
  563. define('TOOL_COURSE_PLUGIN', 'toolcourseplugin'); //all plugins that can be enabled in courses
  564. define('TOOL_ADMIN', 'tooladmin');
  565. define('TOOL_ADMIN_PLATFORM', 'tooladminplatform');
  566. define('TOOL_DRH', 'tool_drh');
  567. define('TOOL_STUDENT_VIEW', 'toolstudentview');
  568. define('TOOL_ADMIN_VISIBLE', 'tooladminvisible');
  569. /**
  570. * Inclusion of internationalization libraries
  571. */
  572. require_once __DIR__.'/internationalization.lib.php';
  573. /**
  574. * Returns a path to a certain resource within the Chamilo area, specifyed through a parameter.
  575. * Also, this function provides conversion between path types, in this case the input path points inside the Chamilo area too.
  576. *
  577. * See $_configuration['course_folder'] in the configuration.php to alter the WEB_COURSE_PATH and SYS_COURSE_PATH parameters.
  578. * @param string $path (optional) A path which type is to be converted. Also, it may be a defined constant for a path.
  579. * This parameter has meaning when $type parameter has one of the following values: TO_WEB, TO_SYS, TO_REL. Otherwise it is ignored.
  580. * @return string The requested path or the converted path.
  581. *
  582. *
  583. * Notes about the current behaviour model:
  584. * 1. Windows back-slashes are converted to slashes in the result.
  585. * 2. A semi-absolute web-path is detected by its leading slash. On Linux systems, absolute system paths start with
  586. * a slash too, so an additional check about presence of leading system server base is implemented. For example, the function is
  587. * able to distinguish type difference between /var/www/chamilo/courses/ (SYS) and /chamilo/courses/ (REL).
  588. * 3. The function api_get_path() returns only these three types of paths, which in some sense are absolute. The function has
  589. * no a mechanism for processing relative web/system paths, such as: lesson01.html, ./lesson01.html, ../css/my_styles.css.
  590. * It has not been identified as needed yet.
  591. * 4. Also, resolving the meta-symbols "." and ".." within paths has not been implemented, it is to be identified as needed.
  592. *
  593. * For examples go to: *
  594. * See main/admin/system_status.php?section=paths
  595. *
  596. * Vchamilo changes : allow using an alternate configuration
  597. * to get vchamilo instance paths
  598. */
  599. function api_get_path($path = '', $configuration = [])
  600. {
  601. global $paths;
  602. // get proper configuration data if exists
  603. global $_configuration;
  604. $emptyConfigurationParam = false;
  605. if (empty($configuration)) {
  606. $configuration = (array) $_configuration;
  607. $emptyConfigurationParam = true;
  608. }
  609. $course_folder = 'courses/';
  610. static $root_web = '';
  611. $root_sys = $_configuration['root_sys'];
  612. // If no $root_web has been set so far *and* no custom config has been passed to the function
  613. // then re-use the previously-calculated (run-specific) $root_web and skip this complex calculation
  614. if (empty($root_web) || $emptyConfigurationParam === false || empty($configuration)) {
  615. // Resolve master hostname.
  616. if (!empty($configuration) && array_key_exists('root_web', $configuration)) {
  617. $root_web = $configuration['root_web'];
  618. } else {
  619. $root_web = '';
  620. // Try guess it from server.
  621. if (defined('SYSTEM_INSTALLATION') && SYSTEM_INSTALLATION) {
  622. if (($pos = strpos(($requested_page_rel = api_get_self()), 'main/install')) !== false) {
  623. $root_rel = substr($requested_page_rel, 0, $pos);
  624. // See http://www.mediawiki.org/wiki/Manual:$wgServer
  625. $server_protocol = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') ? 'https' : 'http';
  626. $server_name =
  627. isset($_SERVER['SERVER_NAME']) ? $_SERVER['SERVER_NAME']
  628. : (isset($_SERVER['HOSTNAME']) ? $_SERVER['HOSTNAME']
  629. : (isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST']
  630. : (isset($_SERVER['SERVER_ADDR']) ? $_SERVER['SERVER_ADDR']
  631. : 'localhost')));
  632. if (isset($_SERVER['SERVER_PORT']) && !strpos($server_name, ':')
  633. && (($server_protocol == 'http'
  634. && $_SERVER['SERVER_PORT'] != 80) || ($server_protocol == 'https' && $_SERVER['SERVER_PORT'] != 443))
  635. ) {
  636. $server_name .= ":".$_SERVER['SERVER_PORT'];
  637. }
  638. $root_web = $server_protocol.'://'.$server_name.$root_rel;
  639. $root_sys = str_replace('\\', '/', realpath(__DIR__.'/../../../')).'/';
  640. }
  641. // Here we give up, so we don't touch anything.
  642. }
  643. }
  644. }
  645. if (isset($configuration['multiple_access_urls']) &&
  646. $configuration['multiple_access_urls']
  647. ) {
  648. // To avoid that the api_get_access_url() function fails since global.inc.php also calls the main_api.lib.php
  649. if (isset($configuration['access_url']) && !empty($configuration['access_url'])) {
  650. // We look into the DB the function api_get_access_url
  651. $urlInfo = api_get_access_url($configuration['access_url']);
  652. // Avoid default value
  653. $defaultValues = ['http://localhost/', 'https://localhost/'];
  654. if (!empty($urlInfo['url']) && !in_array($urlInfo['url'], $defaultValues)) {
  655. $root_web = $urlInfo['active'] == 1 ? $urlInfo['url'] : $configuration['root_web'];
  656. }
  657. }
  658. }
  659. $paths = [];
  660. // Initialise cache with default values.
  661. if (!array_key_exists($root_web, $paths)) {
  662. $paths[$root_web] = array(
  663. WEB_PATH => '',
  664. SYS_PATH => '',
  665. REL_PATH => '',
  666. WEB_COURSE_PATH => '',
  667. SYS_COURSE_PATH => '',
  668. REL_COURSE_PATH => '',
  669. WEB_CODE_PATH => 'main/',
  670. SYS_CODE_PATH => 'main/',
  671. REL_CODE_PATH => '/main/',
  672. SYS_LANG_PATH => 'lang/',
  673. WEB_IMG_PATH => 'img/',
  674. WEB_CSS_PATH => 'web/css/',
  675. SYS_CSS_PATH => 'app/Resources/public/css/',
  676. SYS_PLUGIN_PATH => 'plugin/',
  677. WEB_PLUGIN_PATH => 'plugin/',
  678. SYS_ARCHIVE_PATH => 'app/cache/',
  679. WEB_ARCHIVE_PATH => 'app/cache/',
  680. SYS_HOME_PATH => 'app/home/',
  681. WEB_HOME_PATH => 'app/home/',
  682. REL_HOME_PATH => 'app/home/',
  683. SYS_APP_PATH => 'app/',
  684. WEB_APP_PATH => 'app/',
  685. SYS_UPLOAD_PATH => 'app/upload/',
  686. SYS_INC_PATH => 'inc/',
  687. CONFIGURATION_PATH => 'app/config/',
  688. LIBRARY_PATH => 'inc/lib/',
  689. WEB_LIBRARY_PATH => 'inc/lib/',
  690. WEB_LIBRARY_JS_PATH => 'inc/lib/javascript/',
  691. WEB_AJAX_PATH => 'inc/ajax/',
  692. SYS_TEST_PATH => 'tests/',
  693. WEB_TEMPLATE_PATH => 'template/',
  694. SYS_TEMPLATE_PATH => 'template/',
  695. WEB_UPLOAD_PATH => 'app/upload/',
  696. WEB_PUBLIC_PATH => 'web/',
  697. SYS_PUBLIC_PATH => 'web/',
  698. WEB_FONTS_PATH => 'fonts/',
  699. SYS_FONTS_PATH => 'fonts/',
  700. );
  701. }
  702. $isInitialized = [];
  703. $course_folder = isset($configuration['course_folder']) ? $configuration['course_folder'] : $course_folder;
  704. $root_rel = isset($configuration['url_append']) ? $configuration['url_append'] : '';
  705. // Web server base and system server base.
  706. if (!array_key_exists($root_web, $isInitialized)) {
  707. // process absolute global roots
  708. if (!empty($configuration)) {
  709. $code_folder = 'main';
  710. } else {
  711. $code_folder = $paths[$root_web][REL_CODE_PATH];
  712. }
  713. // Support for the installation process.
  714. // Developers might use the function api_get_path() directly or indirectly (this is difficult to be traced), at the moment when
  715. // configuration has not been created yet. This is why this function should be upgraded to return correct results in this case.
  716. // Dealing with trailing slashes.
  717. $slashed_root_web = api_add_trailing_slash($root_web);
  718. $root_sys = api_add_trailing_slash($root_sys);
  719. $root_rel = api_add_trailing_slash($root_rel);
  720. $code_folder = api_add_trailing_slash($code_folder);
  721. $course_folder = api_add_trailing_slash($course_folder);
  722. // Initialization of a table that contains common-purpose paths.
  723. $paths[$root_web][REL_PATH] = $root_rel;
  724. $paths[$root_web][REL_COURSE_PATH] = $root_rel.$course_folder;
  725. $paths[$root_web][REL_CODE_PATH] = $root_rel.$code_folder;
  726. $paths[$root_web][REL_DEFAULT_COURSE_DOCUMENT_PATH] = $paths[$root_web][REL_PATH].'main/default_course_document/';
  727. $paths[$root_web][WEB_PATH] = $slashed_root_web;
  728. $paths[$root_web][WEB_CODE_PATH] = $paths[$root_web][WEB_PATH].$code_folder;
  729. $paths[$root_web][WEB_COURSE_PATH] = $paths[$root_web][WEB_PATH].$course_folder;
  730. $paths[$root_web][WEB_DEFAULT_COURSE_DOCUMENT_PATH] = $paths[$root_web][WEB_CODE_PATH].'default_course_document/';
  731. $paths[$root_web][WEB_APP_PATH] = $paths[$root_web][WEB_PATH].$paths[$root_web][WEB_APP_PATH];
  732. $paths[$root_web][WEB_PLUGIN_PATH] = $paths[$root_web][WEB_PATH].$paths[$root_web][WEB_PLUGIN_PATH];
  733. $paths[$root_web][WEB_ARCHIVE_PATH] = $paths[$root_web][WEB_PATH].$paths[$root_web][WEB_ARCHIVE_PATH];
  734. $paths[$root_web][WEB_CSS_PATH] = $paths[$root_web][WEB_PATH].$paths[$root_web][WEB_CSS_PATH];
  735. $paths[$root_web][WEB_IMG_PATH] = $paths[$root_web][WEB_CODE_PATH].$paths[$root_web][WEB_IMG_PATH];
  736. $paths[$root_web][WEB_LIBRARY_PATH] = $paths[$root_web][WEB_CODE_PATH].$paths[$root_web][WEB_LIBRARY_PATH];
  737. $paths[$root_web][WEB_LIBRARY_JS_PATH] = $paths[$root_web][WEB_CODE_PATH].$paths[$root_web][WEB_LIBRARY_JS_PATH];
  738. $paths[$root_web][WEB_AJAX_PATH] = $paths[$root_web][WEB_CODE_PATH].$paths[$root_web][WEB_AJAX_PATH];
  739. $paths[$root_web][WEB_FONTS_PATH] = $paths[$root_web][WEB_CODE_PATH].$paths[$root_web][WEB_FONTS_PATH];
  740. $paths[$root_web][WEB_TEMPLATE_PATH] = $paths[$root_web][WEB_CODE_PATH].$paths[$root_web][WEB_TEMPLATE_PATH];
  741. $paths[$root_web][WEB_UPLOAD_PATH] = $paths[$root_web][WEB_PATH].$paths[$root_web][WEB_UPLOAD_PATH];
  742. $paths[$root_web][WEB_PUBLIC_PATH] = $paths[$root_web][WEB_PATH].$paths[$root_web][WEB_PUBLIC_PATH];
  743. $paths[$root_web][WEB_HOME_PATH] = $paths[$root_web][WEB_PATH].$paths[$root_web][REL_HOME_PATH];
  744. $paths[$root_web][SYS_PATH] = $root_sys;
  745. $paths[$root_web][SYS_CODE_PATH] = $root_sys.$code_folder;
  746. $paths[$root_web][SYS_TEST_PATH] = $paths[$root_web][SYS_PATH].$paths[$root_web][SYS_TEST_PATH];
  747. $paths[$root_web][SYS_TEMPLATE_PATH] = $paths[$root_web][SYS_CODE_PATH].$paths[$root_web][SYS_TEMPLATE_PATH];
  748. $paths[$root_web][SYS_PUBLIC_PATH] = $paths[$root_web][SYS_PATH].$paths[$root_web][SYS_PUBLIC_PATH];
  749. $paths[$root_web][SYS_CSS_PATH] = $paths[$root_web][SYS_PATH].$paths[$root_web][SYS_CSS_PATH];
  750. $paths[$root_web][SYS_FONTS_PATH] = $paths[$root_web][SYS_CODE_PATH].$paths[$root_web][SYS_FONTS_PATH];
  751. $paths[$root_web][SYS_ARCHIVE_PATH] = $paths[$root_web][SYS_PATH].$paths[$root_web][SYS_ARCHIVE_PATH];
  752. $paths[$root_web][SYS_APP_PATH] = $paths[$root_web][SYS_PATH].$paths[$root_web][SYS_APP_PATH];
  753. $paths[$root_web][SYS_COURSE_PATH] = $paths[$root_web][SYS_APP_PATH].$course_folder;
  754. $paths[$root_web][SYS_UPLOAD_PATH] = $paths[$root_web][SYS_PATH].$paths[$root_web][SYS_UPLOAD_PATH];
  755. $paths[$root_web][SYS_LANG_PATH] = $paths[$root_web][SYS_CODE_PATH].$paths[$root_web][SYS_LANG_PATH];
  756. $paths[$root_web][SYS_HOME_PATH] = $paths[$root_web][SYS_PATH].$paths[$root_web][SYS_HOME_PATH];
  757. $paths[$root_web][SYS_PLUGIN_PATH] = $paths[$root_web][SYS_PATH].$paths[$root_web][SYS_PLUGIN_PATH];
  758. $paths[$root_web][SYS_INC_PATH] = $paths[$root_web][SYS_CODE_PATH].$paths[$root_web][SYS_INC_PATH];
  759. $paths[$root_web][LIBRARY_PATH] = $paths[$root_web][SYS_CODE_PATH].$paths[$root_web][LIBRARY_PATH];
  760. $paths[$root_web][CONFIGURATION_PATH] = $paths[$root_web][SYS_PATH].$paths[$root_web][CONFIGURATION_PATH];
  761. global $virtualChamilo;
  762. if (!empty($virtualChamilo)) {
  763. $paths[$root_web][SYS_ARCHIVE_PATH] = api_add_trailing_slash($virtualChamilo[SYS_ARCHIVE_PATH]);
  764. $paths[$root_web][SYS_HOME_PATH] = api_add_trailing_slash($virtualChamilo[SYS_HOME_PATH]);
  765. $paths[$root_web][SYS_COURSE_PATH] = api_add_trailing_slash($virtualChamilo[SYS_COURSE_PATH]);
  766. $paths[$root_web][SYS_UPLOAD_PATH] = api_add_trailing_slash($virtualChamilo[SYS_UPLOAD_PATH]);
  767. $paths[$root_web][WEB_HOME_PATH] = api_add_trailing_slash($virtualChamilo[WEB_HOME_PATH]);
  768. $paths[$root_web][WEB_UPLOAD_PATH] = api_add_trailing_slash($virtualChamilo[WEB_UPLOAD_PATH]);
  769. $paths[$root_web][WEB_ARCHIVE_PATH] = api_add_trailing_slash($virtualChamilo[WEB_ARCHIVE_PATH]);
  770. //$paths[$root_web][WEB_COURSE_PATH] = api_add_trailing_slash($virtualChamilo[WEB_COURSE_PATH]);
  771. // WEB_UPLOAD_PATH should be handle by apache htaccess in the vhost
  772. // RewriteEngine On
  773. // RewriteRule /app/upload/(.*)$ http://localhost/other/upload/my-chamilo111-net/$1 [QSA,L]
  774. //$paths[$root_web][WEB_UPLOAD_PATH] = api_add_trailing_slash($virtualChamilo[WEB_UPLOAD_PATH]);
  775. //$paths[$root_web][REL_PATH] = $virtualChamilo[REL_PATH];
  776. //$paths[$root_web][REL_COURSE_PATH] = $virtualChamilo[REL_COURSE_PATH];
  777. }
  778. $isInitialized[$root_web] = true;
  779. }
  780. $path = trim($path);
  781. // Retrieving a common-purpose path.
  782. if (isset($paths[$root_web][$path])) {
  783. return $paths[$root_web][$path];
  784. }
  785. // Second purification.
  786. // Replacing Windows back slashes.
  787. $path = str_replace('\\', '/', $path);
  788. // Query strings sometimes mighth wrongly appear in non-URLs.
  789. // Let us check remove them from all types of paths.
  790. if (($pos = strpos($path, '?')) !== false) {
  791. $path = substr($path, 0, $pos);
  792. }
  793. // Detection of the input path type. Conversion to semi-absolute type ( /chamilo/main/inc/.... ).
  794. if (preg_match(VALID_WEB_PATH, $path)) {
  795. // A special case: When a URL points to the document download script directly, without
  796. // mod-rewrite translation, we have to translate it into an "ordinary" web path.
  797. // For example:
  798. // http://localhost/chamilo/main/document/download.php?doc_url=/image.png&cDir=/
  799. // becomes
  800. // http://localhost/chamilo/courses/TEST/document/image.png
  801. // TEST is a course directory name, so called "system course code".
  802. if (strpos($path, 'download.php') !== false) { // Fast detection first.
  803. $path = urldecode($path);
  804. if (preg_match('/(.*)main\/document\/download.php\?doc_url=\/(.*)&cDir=\/(.*)?/', $path, $matches)) {
  805. $sys_course_code =
  806. isset($_SESSION['_course']['sysCode']) // User is inside a course?
  807. ? $_SESSION['_course']['sysCode'] // Yes, then use course's directory name.
  808. : '{SYS_COURSE_CODE}'; // No, then use a fake code, it may be processed later.
  809. $path = $matches[1].'courses/'.$sys_course_code.'/document/'.str_replace('//', '/', $matches[3].'/'.$matches[2]);
  810. }
  811. }
  812. // Replacement of the present web server base with a slash '/'.
  813. $path = preg_replace(VALID_WEB_SERVER_BASE, '/', $path);
  814. }
  815. // Path now is semi-absolute. It is convenient at this moment repeated slashes to be removed.
  816. $path = preg_replace(REPEATED_SLASHES_PURIFIER, '/', $path);
  817. return $path;
  818. }
  819. /**
  820. * Gets a modified version of the path for the CDN, if defined in
  821. * configuration.php
  822. * @param string $web_path The path of the resource without CDN
  823. * @return string The path of the resource converted to CDN
  824. * @author Yannick Warnier <ywarnier@beeznst.org>
  825. */
  826. function api_get_cdn_path($web_path)
  827. {
  828. global $_configuration;
  829. $web_root = api_get_path(WEB_PATH);
  830. $ext = substr($web_path, strrpos($web_path, '.'));
  831. if (isset($ext[2])) { // faster version of strlen to check if len>2
  832. // Check for CDN definitions
  833. if (!empty($_configuration['cdn_enable']) && !empty($ext)) {
  834. foreach ($_configuration['cdn'] as $host => $exts) {
  835. if (in_array($ext, $exts)) {
  836. //Use host as defined in $_configuration['cdn'], without
  837. // trailing slash
  838. return str_replace($web_root, $host.'/', $web_path);
  839. }
  840. }
  841. }
  842. }
  843. return $web_path;
  844. }
  845. /**
  846. * @return bool Return true if CAS authentification is activated
  847. *
  848. */
  849. function api_is_cas_activated() {
  850. return api_get_setting('cas_activate') == "true";
  851. }
  852. /**
  853. * @return bool Return true if LDAP authentification is activated
  854. *
  855. */
  856. function api_is_ldap_activated() {
  857. global $extAuthSource;
  858. return is_array($extAuthSource[LDAP_AUTH_SOURCE]);
  859. }
  860. /**
  861. * @return bool Return true if Facebook authentification is activated
  862. *
  863. */
  864. function api_is_facebook_auth_activated()
  865. {
  866. global $_configuration;
  867. return (isset($_configuration['facebook_auth']) && $_configuration['facebook_auth'] == 1);
  868. }
  869. /**
  870. * Adds to a given path a trailing slash if it is necessary (adds "/" character at the end of the string).
  871. * @param string $path The input path.
  872. * @return string Returns the modified path.
  873. */
  874. function api_add_trailing_slash($path)
  875. {
  876. return substr($path, -1) == '/' ? $path : $path.'/';
  877. // This code is about 20% faster than the preg_replace equivalent
  878. //return preg_replace('/([^\/])$/', '$1/', $path);
  879. }
  880. /**
  881. * Removes from a given path the trailing slash if it is necessary (removes "/" character from the end of the string).
  882. * @param string $path The input path.
  883. * @return string Returns the modified path.
  884. */
  885. function api_remove_trailing_slash($path)
  886. {
  887. return substr($path, -1) == '/' ? substr($path, 0, -1) : $path;
  888. }
  889. /**
  890. * Checks the RFC 3986 syntax of a given URL.
  891. * @param string $url The URL to be checked.
  892. * @param bool $absolute Whether the URL is absolute (beginning with a scheme such as "http:").
  893. * @return string|false Returns the URL if it is valid, FALSE otherwise.
  894. * This function is an adaptation from the function valid_url(), Drupal CMS.
  895. * @link http://drupal.org
  896. * Note: The built-in function filter_var($urs, FILTER_VALIDATE_URL) has a bug for some versions of PHP.
  897. * @link http://bugs.php.net/51192
  898. */
  899. function api_valid_url($url, $absolute = false) {
  900. if ($absolute) {
  901. if (preg_match("
  902. /^ # Start at the beginning of the text
  903. (?:ftp|https?|feed):\/\/ # Look for ftp, http, https or feed schemes
  904. (?: # Userinfo (optional) which is typically
  905. (?:(?:[\w\.\-\+!$&'\(\)*\+,;=]|%[0-9a-f]{2})+:)* # a username or a username and password
  906. (?:[\w\.\-\+%!$&'\(\)*\+,;=]|%[0-9a-f]{2})+@ # combination
  907. )?
  908. (?:
  909. (?:[a-z0-9\-\.]|%[0-9a-f]{2})+ # A domain name or a IPv4 address
  910. |(?:\[(?:[0-9a-f]{0,4}:)*(?:[0-9a-f]{0,4})\]) # or a well formed IPv6 address
  911. )
  912. (?::[0-9]+)? # Server port number (optional)
  913. (?:[\/|\?]
  914. (?:[\w#!:\.\?\+=&@$'~*,;\/\(\)\[\]\-]|%[0-9a-f]{2}) # The path and query (optional)
  915. *)?
  916. $/xi", $url)) {
  917. return $url;
  918. }
  919. return false;
  920. } else {
  921. return preg_match("/^(?:[\w#!:\.\?\+=&@$'~*,;\/\(\)\[\]\-]|%[0-9a-f]{2})+$/i", $url) ? $url : false;
  922. }
  923. }
  924. /**
  925. * Checks whether a given string looks roughly like an email address.
  926. *
  927. * @param string $address The e-mail address to be checked.
  928. * @return mixed Returns the e-mail if it is valid, FALSE otherwise.
  929. */
  930. function api_valid_email($address)
  931. {
  932. return filter_var($address, FILTER_VALIDATE_EMAIL);
  933. }
  934. /* PROTECTION FUNCTIONS
  935. Use these functions to protect your scripts. */
  936. /**
  937. * Function used to protect a course script.
  938. * The function blocks access when
  939. * - there is no $_SESSION["_course"] defined; or
  940. * - $is_allowed_in_course is set to false (this depends on the course
  941. * visibility and user status).
  942. *
  943. * This is only the first proposal, test and improve!
  944. * @param boolean Option to print headers when displaying error message. Default: false
  945. * @param boolean Whether session admins should be allowed or not.
  946. * @return boolean True if the user has access to the current course or is out of a course context, false otherwise
  947. * @todo replace global variable
  948. * @author Roan Embrechts
  949. */
  950. function api_protect_course_script($print_headers = false, $allow_session_admins = false, $allow_drh = false)
  951. {
  952. $is_allowed_in_course = api_is_allowed_in_course();
  953. $is_visible = false;
  954. $course_info = api_get_course_info();
  955. if (empty($course_info)) {
  956. api_not_allowed($print_headers);
  957. return false;
  958. }
  959. if (api_is_drh()) {
  960. return true;
  961. }
  962. // Session admin has access to course
  963. $sessionAccess = api_get_configuration_value('session_admins_access_all_content');
  964. if ($sessionAccess) {
  965. $allow_session_admins = true;
  966. }
  967. if (api_is_platform_admin($allow_session_admins)) {
  968. return true;
  969. }
  970. if (isset($course_info) && isset($course_info['visibility'])) {
  971. switch ($course_info['visibility']) {
  972. default:
  973. case COURSE_VISIBILITY_CLOSED:
  974. // Completely closed: the course is only accessible to the teachers. - 0
  975. if (api_get_user_id() && !api_is_anonymous() && $is_allowed_in_course) {
  976. $is_visible = true;
  977. }
  978. break;
  979. case COURSE_VISIBILITY_REGISTERED:
  980. // Private - access authorized to course members only - 1
  981. if (api_get_user_id() && !api_is_anonymous() && $is_allowed_in_course) {
  982. $is_visible = true;
  983. }
  984. break;
  985. case COURSE_VISIBILITY_OPEN_PLATFORM:
  986. // Open - access allowed for users registered on the platform - 2
  987. if (api_get_user_id() && !api_is_anonymous() && $is_allowed_in_course) {
  988. $is_visible = true;
  989. }
  990. break;
  991. case COURSE_VISIBILITY_OPEN_WORLD:
  992. //Open - access allowed for the whole world - 3
  993. $is_visible = true;
  994. break;
  995. case COURSE_VISIBILITY_HIDDEN:
  996. //Completely closed: the course is only accessible to the teachers. - 0
  997. if (api_is_platform_admin()) {
  998. $is_visible = true;
  999. }
  1000. break;
  1001. }
  1002. //If password is set and user is not registered to the course then the course is not visible
  1003. if ($is_allowed_in_course == false &&
  1004. isset($course_info['registration_code']) &&
  1005. !empty($course_info['registration_code'])
  1006. ) {
  1007. $is_visible = false;
  1008. }
  1009. }
  1010. // Check session visibility
  1011. $session_id = api_get_session_id();
  1012. if (!empty($session_id)) {
  1013. //$is_allowed_in_course was set in local.inc.php
  1014. if (!$is_allowed_in_course) {
  1015. $is_visible = false;
  1016. }
  1017. }
  1018. if (!$is_visible) {
  1019. api_not_allowed($print_headers);
  1020. return false;
  1021. }
  1022. return true;
  1023. }
  1024. /**
  1025. * Function used to protect an admin script.
  1026. *
  1027. * The function blocks access when the user has no platform admin rights
  1028. * with an error message printed on default output
  1029. * @param bool Whether to allow session admins as well
  1030. * @param bool Whether to allow HR directors as well
  1031. * @param string An optional message (already passed through get_lang)
  1032. * @return bool True if user is allowed, false otherwise.
  1033. * The function also outputs an error message in case not allowed
  1034. * @author Roan Embrechts (original author)
  1035. */
  1036. function api_protect_admin_script($allow_sessions_admins = false, $allow_drh = false, $message = null)
  1037. {
  1038. if (!api_is_platform_admin($allow_sessions_admins, $allow_drh)) {
  1039. api_not_allowed(true, $message);
  1040. return false;
  1041. }
  1042. return true;
  1043. }
  1044. /**
  1045. * Function used to protect a teacher script.
  1046. * The function blocks access when the user has no teacher rights.
  1047. *
  1048. * @author Yoselyn Castillo
  1049. */
  1050. function api_protect_teacher_script($allow_sessions_admins = false)
  1051. {
  1052. if (!api_is_allowed_to_edit()) {
  1053. api_not_allowed(true);
  1054. return false;
  1055. }
  1056. return true;
  1057. }
  1058. /**
  1059. * Function used to prevent anonymous users from accessing a script.
  1060. * @param bool|true $printHeaders
  1061. * @author Roan Embrechts
  1062. *
  1063. * @return bool
  1064. */
  1065. function api_block_anonymous_users($printHeaders = true)
  1066. {
  1067. $user = api_get_user_info();
  1068. if (!(isset($user['user_id']) && $user['user_id']) || api_is_anonymous($user['user_id'], true)) {
  1069. api_not_allowed($printHeaders);
  1070. return false;
  1071. }
  1072. return true;
  1073. }
  1074. /**
  1075. * @return array with the navigator name and version
  1076. */
  1077. function api_get_navigator() {
  1078. $navigator = 'Unknown';
  1079. $version = 0;
  1080. if (!isset($_SERVER['HTTP_USER_AGENT'])) {
  1081. return array('name' => 'Unknown', 'version' => '0.0.0');
  1082. }
  1083. if (strpos($_SERVER['HTTP_USER_AGENT'], 'Opera') !== false) {
  1084. $navigator = 'Opera';
  1085. list (, $version) = explode('Opera', $_SERVER['HTTP_USER_AGENT']);
  1086. } elseif (strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE') !== false) {
  1087. $navigator = 'Internet Explorer';
  1088. list (, $version) = explode('MSIE', $_SERVER['HTTP_USER_AGENT']);
  1089. } elseif (strpos($_SERVER['HTTP_USER_AGENT'], 'Chrome') !== false) {
  1090. $navigator = 'Chrome';
  1091. list (, $version) = explode('Chrome', $_SERVER['HTTP_USER_AGENT']);
  1092. } elseif (stripos($_SERVER['HTTP_USER_AGENT'], 'safari') !== false) {
  1093. $navigator = 'Safari';
  1094. list (, $version) = explode('Version/', $_SERVER['HTTP_USER_AGENT']);
  1095. } elseif (strpos($_SERVER['HTTP_USER_AGENT'], 'Gecko') !== false) {
  1096. $navigator = 'Mozilla';
  1097. list (, $version) = explode('; rv:', $_SERVER['HTTP_USER_AGENT']);
  1098. } elseif (strpos($_SERVER['HTTP_USER_AGENT'], 'Netscape') !== false) {
  1099. $navigator = 'Netscape';
  1100. list (, $version) = explode('Netscape', $_SERVER['HTTP_USER_AGENT']);
  1101. } elseif (strpos($_SERVER['HTTP_USER_AGENT'], 'Konqueror') !== false) {
  1102. $navigator = 'Konqueror';
  1103. list (, $version) = explode('Konqueror', $_SERVER['HTTP_USER_AGENT']);
  1104. } elseif (stripos($_SERVER['HTTP_USER_AGENT'], 'applewebkit') !== false) {
  1105. $navigator = 'AppleWebKit';
  1106. list (, $version) = explode('Version/', $_SERVER['HTTP_USER_AGENT']);
  1107. }
  1108. $version = str_replace('/', '', $version);
  1109. if (strpos($version, '.') === false) {
  1110. $version = number_format(doubleval($version), 1);
  1111. }
  1112. $return = array('name' => $navigator, 'version' => $version);
  1113. return $return;
  1114. }
  1115. /**
  1116. * @return True if user self registration is allowed, false otherwise.
  1117. */
  1118. function api_is_self_registration_allowed()
  1119. {
  1120. return isset($GLOBALS['allowSelfReg']) ? $GLOBALS['allowSelfReg'] : false;
  1121. }
  1122. /**
  1123. * This function returns the id of the user which is stored in the $_user array.
  1124. *
  1125. * example: The function can be used to check if a user is logged in
  1126. * if (api_get_user_id())
  1127. * @return int the id of the current user, 0 if is empty
  1128. */
  1129. function api_get_user_id()
  1130. {
  1131. $userInfo = Session::read('_user');
  1132. if ($userInfo && isset($userInfo['user_id'])) {
  1133. return (int) $userInfo['user_id'];
  1134. }
  1135. return 0;
  1136. }
  1137. /**
  1138. * Gets the list of courses a specific user is subscribed to
  1139. * @param int User ID
  1140. * @param boolean $fetch_session Whether to get session courses or not - NOT YET IMPLEMENTED
  1141. * @return array Array of courses in the form [0]=>('code'=>xxx,'db'=>xxx,'dir'=>xxx,'status'=>d)
  1142. * @deprecated use CourseManager::get_courses_list_by_user_id()
  1143. */
  1144. function api_get_user_courses($userid, $fetch_session = true)
  1145. {
  1146. // Get out if not integer
  1147. if ($userid != strval(intval($userid))) {
  1148. return [];
  1149. }
  1150. $t_course = Database::get_main_table(TABLE_MAIN_COURSE);
  1151. $t_course_user = Database::get_main_table(TABLE_MAIN_COURSE_USER);
  1152. $sql = "SELECT cc.id as real_id, cc.code code, cc.directory dir, cu.status status
  1153. FROM $t_course cc,
  1154. $t_course_user cu
  1155. WHERE
  1156. cc.id = cu.c_id AND
  1157. cu.user_id = '".$userid."' AND
  1158. cu.relation_type<>".COURSE_RELATION_TYPE_RRHH." ";
  1159. $result = Database::query($sql);
  1160. if ($result === false) {
  1161. return [];
  1162. }
  1163. $courses = [];
  1164. while ($row = Database::fetch_array($result)) {
  1165. // we only need the database name of the course
  1166. $courses[] = $row;
  1167. }
  1168. return $courses;
  1169. }
  1170. /**
  1171. * Formats user information into a standard array
  1172. * This function should be only used inside api_get_user_info()
  1173. *
  1174. * @param array Non-standard user array
  1175. * @param bool $add_password
  1176. * @param bool $loadAvatars turn off to improve performance
  1177. *
  1178. * @return array Standard user array
  1179. */
  1180. function _api_format_user($user, $add_password = false, $loadAvatars = true)
  1181. {
  1182. $result = [];
  1183. $result['firstname'] = null;
  1184. $result['lastname'] = null;
  1185. if (isset($user['firstname']) && isset($user['lastname'])) { // with only lowercase
  1186. $result['firstname'] = $user['firstname'];
  1187. $result['lastname'] = $user['lastname'];
  1188. } elseif (isset($user['firstName']) && isset($user['lastName'])) { // with uppercase letters
  1189. $result['firstname'] = isset($user['firstName']) ? $user['firstName'] : null;
  1190. $result['lastname'] = isset($user['lastName']) ? $user['lastName'] : null;
  1191. }
  1192. if (isset($user['email'])) {
  1193. $result['mail'] = isset($user['email']) ? $user['email'] : null;
  1194. $result['email'] = isset($user['email']) ? $user['email'] : null;
  1195. } else {
  1196. $result['mail'] = isset($user['mail']) ? $user['mail'] : null;
  1197. $result['email'] = isset($user['mail']) ? $user['mail'] : null;
  1198. }
  1199. $result['complete_name'] = api_get_person_name($result['firstname'], $result['lastname']);
  1200. $result['complete_name_with_username'] = $result['complete_name'];
  1201. if (!empty($user['username'])) {
  1202. $result['complete_name_with_username'] = $result['complete_name'].' ('.$user['username'].')';
  1203. }
  1204. $showEmail = api_get_setting('show_email_addresses') === 'true';
  1205. if (!empty($user['email'])) {
  1206. $result['complete_name_with_email_forced'] = $result['complete_name'].' ('.$user['email'].')';
  1207. if ($showEmail) {
  1208. $result['complete_name_with_email'] = $result['complete_name'].' ('.$user['email'].')';
  1209. }
  1210. } else {
  1211. $result['complete_name_with_email'] = $result['complete_name'];
  1212. $result['complete_name_with_email_forced'] = $result['complete_name'];
  1213. }
  1214. // Kept for historical reasons
  1215. $result['firstName'] = $result['firstname'];
  1216. $result['lastName'] = $result['lastname'];
  1217. $attributes = array(
  1218. 'phone',
  1219. 'address',
  1220. 'picture_uri',
  1221. 'official_code',
  1222. 'status',
  1223. 'active',
  1224. 'auth_source',
  1225. 'username',
  1226. 'theme',
  1227. 'language',
  1228. 'creator_id',
  1229. 'registration_date',
  1230. 'hr_dept_id',
  1231. 'expiration_date',
  1232. 'last_login',
  1233. 'user_is_online'
  1234. );
  1235. if (api_get_setting('extended_profile') === 'true') {
  1236. $attributes[] = 'competences';
  1237. $attributes[] = 'diplomas';
  1238. $attributes[] = 'teach';
  1239. $attributes[] = 'openarea';
  1240. }
  1241. foreach ($attributes as $attribute) {
  1242. $result[$attribute] = isset($user[$attribute]) ? $user[$attribute] : null;
  1243. }
  1244. $user_id = intval($user['user_id']);
  1245. // Maintain the user_id index for backwards compatibility
  1246. $result['user_id'] = $result['id'] = $user_id;
  1247. // Getting user avatar.
  1248. if ($loadAvatars) {
  1249. $result['avatar'] = '';
  1250. $result['avatar_no_query'] = '';
  1251. $result['avatar_small'] = '';
  1252. $result['avatar_medium'] = '';
  1253. if (!isset($user['avatar'])) {
  1254. $originalFile = UserManager::getUserPicture(
  1255. $user_id,
  1256. USER_IMAGE_SIZE_ORIGINAL,
  1257. null,
  1258. $result
  1259. );
  1260. $result['avatar'] = $originalFile;
  1261. $avatarString = explode('?', $result['avatar']);
  1262. $result['avatar_no_query'] = reset($avatarString);
  1263. } else {
  1264. $result['avatar'] = $user['avatar'];
  1265. $avatarString = explode('?', $user['avatar']);
  1266. $result['avatar_no_query'] = reset($avatarString);
  1267. }
  1268. if (!isset($user['avatar_small'])) {
  1269. $smallFile = UserManager::getUserPicture(
  1270. $user_id,
  1271. USER_IMAGE_SIZE_SMALL,
  1272. null,
  1273. $result
  1274. );
  1275. $result['avatar_small'] = $smallFile;
  1276. } else {
  1277. $result['avatar_small'] = $user['avatar_small'];
  1278. }
  1279. if (!isset($user['avatar_medium'])) {
  1280. $mediumFile = UserManager::getUserPicture(
  1281. $user_id,
  1282. USER_IMAGE_SIZE_MEDIUM,
  1283. null,
  1284. $result
  1285. );
  1286. $result['avatar_medium'] = $mediumFile;
  1287. } else {
  1288. $result['avatar_medium'] = $user['avatar_medium'];
  1289. }
  1290. }
  1291. if (isset($user['user_is_online'])) {
  1292. $result['user_is_online'] = $user['user_is_online'] == true ? 1 : 0;
  1293. }
  1294. if (isset($user['user_is_online_in_chat'])) {
  1295. $result['user_is_online_in_chat'] = intval($user['user_is_online_in_chat']);
  1296. }
  1297. if ($add_password) {
  1298. $result['password'] = $user['password'];
  1299. }
  1300. if (isset($result['profile_completed'])) {
  1301. $result['profile_completed'] = $user['profile_completed'];
  1302. }
  1303. $result['profile_url'] = api_get_path(WEB_CODE_PATH).'social/profile.php?u='.$user_id;
  1304. // Send message link
  1305. $sendMessage = api_get_path(WEB_AJAX_PATH).'user_manager.ajax.php?a=get_user_popup&user_id='.$user_id;
  1306. $result['complete_name_with_message_link'] = Display::url(
  1307. $result['complete_name_with_username'],
  1308. $sendMessage,
  1309. ['class' => 'ajax']
  1310. );
  1311. if (isset($user['extra'])) {
  1312. $result['extra'] = $user['extra'];
  1313. }
  1314. return $result;
  1315. }
  1316. /**
  1317. * Finds all the information about a user.
  1318. * If no parameter is passed you find all the information about the current user.
  1319. * @param int $user_id
  1320. * @param bool $checkIfUserOnline
  1321. * @param bool $showPassword
  1322. * @param bool $loadExtraData
  1323. * @param bool $loadOnlyVisibleExtraData Get the user extra fields that are visible
  1324. * @param bool $loadAvatars turn off to improve performance and if avatars are not needed.
  1325. * @param bool $updateCache update apc cache if exists
  1326. *
  1327. * @return array $user_info user_id, lastname, firstname, username, email, etc
  1328. * @author Patrick Cool <patrick.cool@UGent.be>
  1329. * @author Julio Montoya
  1330. * @version 21 September 2004
  1331. */
  1332. function api_get_user_info(
  1333. $user_id = 0,
  1334. $checkIfUserOnline = false,
  1335. $showPassword = false,
  1336. $loadExtraData = false,
  1337. $loadOnlyVisibleExtraData = false,
  1338. $loadAvatars = true,
  1339. $updateCache = false
  1340. ) {
  1341. $apcVar = null;
  1342. $user = false;
  1343. $cacheAvailable = api_get_configuration_value('apc');
  1344. if (empty($user_id)) {
  1345. $userFromSession = Session::read('_user');
  1346. if (isset($userFromSession)) {
  1347. if ($cacheAvailable === true) {
  1348. $apcVar = api_get_configuration_value('apc_prefix').'userinfo_'.$userFromSession['user_id'];
  1349. if (apcu_exists($apcVar)) {
  1350. if ($updateCache) {
  1351. apcu_store($apcVar, $userFromSession, 60);
  1352. }
  1353. $user = apcu_fetch($apcVar);
  1354. } else {
  1355. $user = _api_format_user(
  1356. $userFromSession,
  1357. $showPassword,
  1358. $loadAvatars
  1359. );
  1360. apcu_store($apcVar, $user, 60);
  1361. }
  1362. } else {
  1363. $user = _api_format_user(
  1364. $userFromSession,
  1365. $showPassword,
  1366. $loadAvatars
  1367. );
  1368. }
  1369. return $user;
  1370. }
  1371. return false;
  1372. }
  1373. // Make sure user_id is safe
  1374. $user_id = intval($user_id);
  1375. // Re-use user information if not stale and already stored in APCu
  1376. if ($cacheAvailable === true) {
  1377. $apcVar = api_get_configuration_value('apc_prefix').'userinfo_'.$user_id;
  1378. if (apcu_exists($apcVar) && $updateCache == false && $checkIfUserOnline == false) {
  1379. $user = apcu_fetch($apcVar);
  1380. return $user;
  1381. }
  1382. }
  1383. $sql = "SELECT * FROM ".Database::get_main_table(TABLE_MAIN_USER)."
  1384. WHERE id = $user_id";
  1385. $result = Database::query($sql);
  1386. if (Database::num_rows($result) > 0) {
  1387. $result_array = Database::fetch_array($result);
  1388. if ($checkIfUserOnline) {
  1389. $use_status_in_platform = user_is_online($user_id);
  1390. $result_array['user_is_online'] = $use_status_in_platform;
  1391. $user_online_in_chat = 0;
  1392. if ($use_status_in_platform) {
  1393. $user_status = UserManager::get_extra_user_data_by_field(
  1394. $user_id,
  1395. 'user_chat_status',
  1396. false,
  1397. true
  1398. );
  1399. if (@intval($user_status['user_chat_status']) == 1) {
  1400. $user_online_in_chat = 1;
  1401. }
  1402. }
  1403. $result_array['user_is_online_in_chat'] = $user_online_in_chat;
  1404. }
  1405. if ($loadExtraData) {
  1406. $fieldValue = new ExtraFieldValue('user');
  1407. $result_array['extra'] = $fieldValue->getAllValuesForAnItem(
  1408. $user_id,
  1409. $loadOnlyVisibleExtraData
  1410. );
  1411. }
  1412. $user = _api_format_user($result_array, $showPassword, $loadAvatars);
  1413. }
  1414. if ($cacheAvailable === true) {
  1415. apcu_store($apcVar, $user, 60);
  1416. }
  1417. return $user;
  1418. }
  1419. /**
  1420. * @param int $userId
  1421. * @return User
  1422. */
  1423. function api_get_user_entity($userId)
  1424. {
  1425. $userId = (int) $userId;
  1426. /** @var \Chamilo\UserBundle\Repository\UserRepository $repo */
  1427. $repo = Database::getManager()->getRepository('ChamiloUserBundle:User');
  1428. return $repo->find($userId);
  1429. }
  1430. /**
  1431. * Finds all the information about a user from username instead of user id
  1432. * @param string $username
  1433. * @return array $user_info array user_id, lastname, firstname, username, email
  1434. * @author Yannick Warnier <yannick.warnier@beeznest.com>
  1435. */
  1436. function api_get_user_info_from_username($username = '')
  1437. {
  1438. if (empty($username)) {
  1439. return false;
  1440. }
  1441. $username = trim($username);
  1442. $sql = "SELECT * FROM ".Database::get_main_table(TABLE_MAIN_USER)."
  1443. WHERE username='".Database::escape_string($username)."'";
  1444. $result = Database::query($sql);
  1445. if (Database::num_rows($result) > 0) {
  1446. $result_array = Database::fetch_array($result);
  1447. return _api_format_user($result_array);
  1448. }
  1449. return false;
  1450. }
  1451. /**
  1452. * Get first user with an email
  1453. * @param string $email
  1454. * @return array|bool
  1455. */
  1456. function api_get_user_info_from_email($email = '')
  1457. {
  1458. if (empty($email)) {
  1459. return false;
  1460. }
  1461. $sql = "SELECT * FROM ".Database::get_main_table(TABLE_MAIN_USER)."
  1462. WHERE email ='".Database::escape_string($email)."' LIMIT 1";
  1463. $result = Database::query($sql);
  1464. if (Database::num_rows($result) > 0) {
  1465. $result_array = Database::fetch_array($result);
  1466. return _api_format_user($result_array);
  1467. }
  1468. return false;
  1469. }
  1470. /**
  1471. * @return string
  1472. */
  1473. function api_get_course_id()
  1474. {
  1475. return Session::read('_cid', null);
  1476. }
  1477. /**
  1478. * Returns the current course id (integer)
  1479. * @param string $code Optional course code
  1480. * @return int
  1481. */
  1482. function api_get_course_int_id($code = null)
  1483. {
  1484. if (!empty($code)) {
  1485. $code = Database::escape_string($code);
  1486. $row = Database::select(
  1487. 'id',
  1488. Database::get_main_table(TABLE_MAIN_COURSE),
  1489. array('where'=> array('code = ?' => array($code))),
  1490. 'first'
  1491. );
  1492. if (is_array($row) && isset($row['id'])) {
  1493. return $row['id'];
  1494. } else {
  1495. return false;
  1496. }
  1497. }
  1498. return Session::read('_real_cid', 0);
  1499. }
  1500. /**
  1501. * Returns the current course directory
  1502. *
  1503. * This function relies on api_get_course_info()
  1504. * @param string The course code - optional (takes it from session if not given)
  1505. * @return string The directory where the course is located inside the Chamilo "courses" directory
  1506. * @author Yannick Warnier <yannick.warnier@beeznest.com>
  1507. */
  1508. function api_get_course_path($course_code = null)
  1509. {
  1510. $info = !empty($course_code) ? api_get_course_info($course_code) : api_get_course_info();
  1511. return $info['path'];
  1512. }
  1513. /**
  1514. * Gets a course setting from the current course_setting table. Try always using integer values.
  1515. * @param string The name of the setting we want from the table
  1516. * @param string Optional: course code
  1517. * @param string $setting_name
  1518. * @return mixed The value of that setting in that table. Return -1 if not found.
  1519. */
  1520. function api_get_course_setting($setting_name, $course_code = null)
  1521. {
  1522. $course_info = api_get_course_info($course_code);
  1523. $table = Database::get_course_table(TABLE_COURSE_SETTING);
  1524. $setting_name = Database::escape_string($setting_name);
  1525. if (!empty($course_info['real_id']) && !empty($setting_name)) {
  1526. $sql = "SELECT value FROM $table
  1527. WHERE c_id = {$course_info['real_id']} AND variable = '$setting_name'";
  1528. $res = Database::query($sql);
  1529. if (Database::num_rows($res) > 0) {
  1530. $row = Database::fetch_array($res);
  1531. if ($setting_name === 'email_alert_manager_on_new_quiz') {
  1532. if (!is_null($row['value'])) {
  1533. $result = explode(',', $row['value']);
  1534. $row['value'] = $result;
  1535. }
  1536. }
  1537. return $row['value'];
  1538. }
  1539. }
  1540. return -1;
  1541. }
  1542. /**
  1543. * Gets an anonymous user ID
  1544. *
  1545. * For some tools that need tracking, like the learnpath tool, it is necessary
  1546. * to have a usable user-id to enable some kind of tracking, even if not
  1547. * perfect. An anonymous ID is taken from the users table by looking for a
  1548. * status of "6" (anonymous).
  1549. * @return int User ID of the anonymous user, or O if no anonymous user found
  1550. */
  1551. function api_get_anonymous_id()
  1552. {
  1553. // Find if another anon is connected now
  1554. $table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_LOGIN);
  1555. $tableU = Database::get_main_table(TABLE_MAIN_USER);
  1556. $ip = api_get_real_ip();
  1557. $max = api_get_configuration_value('max_anonymous_users');
  1558. if ($max >= 2) {
  1559. $sql = "SELECT * FROM $table as TEL
  1560. JOIN $tableU as U
  1561. ON U.user_id = TEL.login_user_id
  1562. WHERE TEL.user_ip = '$ip'
  1563. AND U.status = ".ANONYMOUS."
  1564. AND U.user_id != 2 ";
  1565. $result = Database::query($sql);
  1566. if (empty(Database::num_rows($result))) {
  1567. $login = uniqid('anon_');
  1568. $anonList = UserManager::get_user_list(['status' => ANONYMOUS], ['registration_date ASC']);
  1569. if (count($anonList) == $max) {
  1570. foreach ($anonList as $userToDelete) {
  1571. UserManager::delete_user($userToDelete['user_id']);
  1572. break;
  1573. }
  1574. }
  1575. $userId = UserManager::create_user(
  1576. $login,
  1577. 'anon',
  1578. ANONYMOUS,
  1579. ' anonymous@localhost',
  1580. $login,
  1581. $login
  1582. );
  1583. return $userId;
  1584. } else {
  1585. $row = Database::fetch_array($result, 'ASSOC');
  1586. return $row['user_id'];
  1587. }
  1588. }
  1589. $table = Database::get_main_table(TABLE_MAIN_USER);
  1590. $sql = "SELECT user_id
  1591. FROM $table
  1592. WHERE status = ".ANONYMOUS." ";
  1593. $res = Database::query($sql);
  1594. if (Database::num_rows($res) > 0) {
  1595. $row = Database::fetch_array($res, 'ASSOC');
  1596. return $row['user_id'];
  1597. }
  1598. // No anonymous user was found.
  1599. return 0;
  1600. }
  1601. /**
  1602. * @param string $courseCode
  1603. * @param int $sessionId
  1604. * @param int $groupId
  1605. * @return string
  1606. */
  1607. function api_get_cidreq_params($courseCode, $sessionId = 0, $groupId = 0)
  1608. {
  1609. $courseCode = !empty($courseCode) ? htmlspecialchars($courseCode) : '';
  1610. $sessionId = !empty($sessionId) ? (int) $sessionId : 0;
  1611. $groupId = !empty($groupId) ? (int) $groupId : 0;
  1612. $url = 'cidReq='.$courseCode;
  1613. $url .= '&id_session='.$sessionId;
  1614. $url .= '&gidReq='.$groupId;
  1615. return $url;
  1616. }
  1617. /**
  1618. * Returns the current course url part including session, group, and gradebook params
  1619. *
  1620. * @param bool $addSessionId
  1621. * @param bool $addGroupId
  1622. * @param string $origin
  1623. *
  1624. * @return string Course & session references to add to a URL
  1625. *
  1626. */
  1627. function api_get_cidreq($addSessionId = true, $addGroupId = true, $origin = '')
  1628. {
  1629. $courseCode = api_get_course_id();
  1630. $url = empty($courseCode) ? '' : 'cidReq='.htmlspecialchars($courseCode);
  1631. $origin = empty($origin) ? api_get_origin() : Security::remove_XSS($origin);
  1632. if ($addSessionId) {
  1633. if (!empty($url)) {
  1634. $url .= api_get_session_id() == 0 ? '&id_session=0' : '&id_session='.api_get_session_id();
  1635. }
  1636. }
  1637. if ($addGroupId) {
  1638. if (!empty($url)) {
  1639. $url .= api_get_group_id() == 0 ? '&gidReq=0' : '&gidReq='.api_get_group_id();
  1640. }
  1641. }
  1642. if (!empty($url)) {
  1643. $url .= '&gradebook='.intval(api_is_in_gradebook());
  1644. $url .= '&origin='.$origin;
  1645. }
  1646. return $url;
  1647. }
  1648. /**
  1649. * Get if we visited a gradebook page
  1650. * @return bool
  1651. */
  1652. function api_is_in_gradebook()
  1653. {
  1654. return Session::read('in_gradebook', false);
  1655. }
  1656. /**
  1657. * Set that we are in a page inside a gradebook
  1658. * @return bool
  1659. */
  1660. function api_set_in_gradebook()
  1661. {
  1662. Session::write('in_gradebook', true);
  1663. }
  1664. /**
  1665. * Remove gradebook session
  1666. */
  1667. function api_remove_in_gradebook()
  1668. {
  1669. Session::erase('in_gradebook');
  1670. }
  1671. /**
  1672. * Returns the current course info array see api_format_course_array()
  1673. * If the course_code is given, the returned array gives info about that
  1674. * particular course, if none given it gets the course info from the session.
  1675. *
  1676. * @param string $course_code
  1677. * @param bool $strict
  1678. *
  1679. * @return array
  1680. */
  1681. function api_get_course_info($course_code = null, $strict = false)
  1682. {
  1683. if (!empty($course_code)) {
  1684. $course_code = Database::escape_string($course_code);
  1685. $courseId = api_get_course_int_id($course_code);
  1686. if (empty($courseId)) {
  1687. return [];
  1688. }
  1689. $course_table = Database::get_main_table(TABLE_MAIN_COURSE);
  1690. $course_cat_table = Database::get_main_table(TABLE_MAIN_CATEGORY);
  1691. $sql = "SELECT
  1692. course.*,
  1693. course_category.code faCode,
  1694. course_category.name faName
  1695. FROM $course_table
  1696. LEFT JOIN $course_cat_table
  1697. ON course.category_code = course_category.code
  1698. WHERE course.id = $courseId";
  1699. $result = Database::query($sql);
  1700. $courseInfo = [];
  1701. if (Database::num_rows($result) > 0) {
  1702. $data = Database::fetch_array($result);
  1703. $courseInfo = api_format_course_array($data);
  1704. }
  1705. return $courseInfo;
  1706. }
  1707. global $_course;
  1708. if ($_course == '-1') {
  1709. $_course = [];
  1710. }
  1711. return $_course;
  1712. }
  1713. /**
  1714. * Returns the current course info array.
  1715. * Now if the course_code is given, the returned array gives info about that
  1716. * particular course, not specially the current one.
  1717. * @param int $id Numeric ID of the course
  1718. * @return array The course info as an array formatted by api_format_course_array, including category.name
  1719. */
  1720. function api_get_course_info_by_id($id = null)
  1721. {
  1722. if (!empty($id)) {
  1723. $id = intval($id);
  1724. $course_table = Database::get_main_table(TABLE_MAIN_COURSE);
  1725. $course_cat_table = Database::get_main_table(TABLE_MAIN_CATEGORY);
  1726. $sql = "SELECT
  1727. course.*,
  1728. course_category.code faCode,
  1729. course_category.name faName
  1730. FROM $course_table
  1731. LEFT JOIN $course_cat_table
  1732. ON course.category_code = course_category.code
  1733. WHERE course.id = $id";
  1734. $result = Database::query($sql);
  1735. $_course = [];
  1736. if (Database::num_rows($result) > 0) {
  1737. $row = Database::fetch_array($result);
  1738. $_course = api_format_course_array($row);
  1739. }
  1740. return $_course;
  1741. }
  1742. global $_course;
  1743. if ($_course == '-1') {
  1744. $_course = [];
  1745. }
  1746. return $_course;
  1747. }
  1748. /**
  1749. * Reformat the course array (output by api_get_course_info()) in order, mostly,
  1750. * to switch from 'code' to 'id' in the array. This is a legacy feature and is
  1751. * now possibly causing massive confusion as a new "id" field has been added to
  1752. * the course table in 1.9.0.
  1753. * @param $course_data
  1754. * @return array
  1755. * @todo eradicate the false "id"=code field of the $_course array and use the int id
  1756. */
  1757. function api_format_course_array($course_data)
  1758. {
  1759. if (empty($course_data)) {
  1760. return [];
  1761. }
  1762. $_course = [];
  1763. $_course['id'] = $course_data['code'];
  1764. $_course['real_id'] = $course_data['id'];
  1765. // Added
  1766. $_course['code'] = $course_data['code'];
  1767. $_course['name'] = $course_data['title'];
  1768. $_course['title'] = $course_data['title'];
  1769. $_course['official_code'] = $course_data['visual_code'];
  1770. $_course['visual_code'] = $course_data['visual_code'];
  1771. $_course['sysCode'] = $course_data['code'];
  1772. $_course['path'] = $course_data['directory']; // Use as key in path.
  1773. $_course['directory'] = $course_data['directory'];
  1774. $_course['creation_date'] = $course_data['creation_date'];
  1775. $_course['titular'] = $course_data['tutor_name'];
  1776. $_course['language'] = $course_data['course_language'];
  1777. $_course['extLink']['url'] = $course_data['department_url'];
  1778. $_course['extLink']['name'] = $course_data['department_name'];
  1779. $_course['categoryCode'] = $course_data['faCode'];
  1780. $_course['categoryName'] = $course_data['faName'];
  1781. $_course['visibility'] = $course_data['visibility'];
  1782. $_course['subscribe_allowed'] = $course_data['subscribe'];
  1783. $_course['subscribe'] = $course_data['subscribe'];
  1784. $_course['unsubscribe'] = $course_data['unsubscribe'];
  1785. $_course['course_language'] = $course_data['course_language'];
  1786. $_course['activate_legal'] = isset($course_data['activate_legal']) ? $course_data['activate_legal'] : false;
  1787. $_course['legal'] = $course_data['legal'];
  1788. $_course['show_score'] = $course_data['show_score']; //used in the work tool
  1789. $_course['department_name'] = $course_data['department_name'];
  1790. $_course['department_url'] = $course_data['department_url'];
  1791. $courseSys = api_get_path(SYS_COURSE_PATH).$course_data['directory'];
  1792. $webCourseHome = api_get_path(WEB_COURSE_PATH).$course_data['directory'];
  1793. // Course password
  1794. $_course['registration_code'] = !empty($course_data['registration_code']) ? sha1($course_data['registration_code']) : null;
  1795. $_course['disk_quota'] = $course_data['disk_quota'];
  1796. $_course['course_public_url'] = $webCourseHome.'/index.php';
  1797. if (array_key_exists('add_teachers_to_sessions_courses', $course_data)) {
  1798. $_course['add_teachers_to_sessions_courses'] = $course_data['add_teachers_to_sessions_courses'];
  1799. }
  1800. // Course image
  1801. $_course['course_image_source'] = '';
  1802. if (file_exists($courseSys.'/course-pic85x85.png')) {
  1803. $url_image = $webCourseHome.'/course-pic85x85.png';
  1804. $_course['course_image_source'] = $courseSys.'/course-pic85x85.png';
  1805. } else {
  1806. $url_image = Display::return_icon(
  1807. 'course.png',
  1808. null,
  1809. null,
  1810. ICON_SIZE_BIG,
  1811. null,
  1812. true,
  1813. false
  1814. );
  1815. }
  1816. $_course['course_image'] = $url_image;
  1817. // Course large image
  1818. $_course['course_image_large_source'] = '';
  1819. if (file_exists($courseSys.'/course-pic.png')) {
  1820. $url_image = $webCourseHome.'/course-pic.png';
  1821. $_course['course_image_large_source'] = $courseSys.'/course-pic.png';
  1822. } else {
  1823. $url_image = Display::return_icon(
  1824. 'session_default.png',
  1825. null,
  1826. null,
  1827. null,
  1828. null,
  1829. true
  1830. );
  1831. }
  1832. $_course['course_image_large'] = $url_image;
  1833. return $_course;
  1834. }
  1835. /**
  1836. * Returns a difficult to guess password.
  1837. * @param int $length the length of the password
  1838. * @return string the generated password
  1839. */
  1840. function api_generate_password($length = 8)
  1841. {
  1842. if ($length < 2) {
  1843. $length = 2;
  1844. }
  1845. $charactersLowerCase = 'abcdefghijkmnopqrstuvwxyz';
  1846. $charactersUpperCase = 'ABCDEFGHJKLMNPQRSTUVWXYZ';
  1847. $minNumbers = 2;
  1848. $length = $length - $minNumbers;
  1849. $minLowerCase = round($length / 2);
  1850. $minUpperCase = $length - $minLowerCase;
  1851. $password = '';
  1852. $passwordRequirements = api_get_configuration_value('password_requirements');
  1853. $factory = new RandomLib\Factory();
  1854. $generator = $factory->getGenerator(new SecurityLib\Strength(SecurityLib\Strength::MEDIUM));
  1855. if (!empty($passwordRequirements)) {
  1856. $length = $passwordRequirements['min']['length'];
  1857. $minNumbers = $passwordRequirements['min']['numeric'];
  1858. $minLowerCase = $passwordRequirements['min']['lowercase'];
  1859. $minUpperCase = $passwordRequirements['min']['uppercase'];
  1860. $rest = $length - $minNumbers - $minLowerCase - $minUpperCase;
  1861. // Add the rest to fill the length requirement
  1862. if ($rest > 0) {
  1863. $password .= $generator->generateString($rest, $charactersLowerCase.$charactersUpperCase);
  1864. }
  1865. }
  1866. // Min digits default 2
  1867. for ($i = 0; $i < $minNumbers; $i++) {
  1868. $password .= $generator->generateInt(2, 9);
  1869. }
  1870. // Min lowercase
  1871. $password .= $generator->generateString($minLowerCase, $charactersLowerCase);
  1872. // Min uppercase
  1873. $password .= $generator->generateString($minUpperCase, $charactersUpperCase);
  1874. $password = str_shuffle($password);
  1875. return $password;
  1876. }
  1877. /**
  1878. * Checks a password to see wether it is OK to use.
  1879. * @param string $password
  1880. * @return boolean if the password is acceptable, false otherwise
  1881. * Notes about what a password "OK to use" is:
  1882. * 1. The password should be at least 5 characters long.
  1883. * 2. Only English letters (uppercase or lowercase, it doesn't matter) and digits are allowed.
  1884. * 3. The password should contain at least 3 letters.
  1885. * 4. It should contain at least 2 digits.
  1886. * Settings will change if the configuration value is set: password_requirements
  1887. */
  1888. function api_check_password($password)
  1889. {
  1890. $passwordRequirements = Security::getPasswordRequirements();
  1891. $minLength = $passwordRequirements['min']['length'];
  1892. $minNumbers = $passwordRequirements['min']['numeric'];
  1893. // Optional
  1894. $minLowerCase = $passwordRequirements['min']['lowercase'];
  1895. $minUpperCase = $passwordRequirements['min']['uppercase'];
  1896. $minLetters = $minLowerCase + $minUpperCase;
  1897. $passwordLength = api_strlen($password);
  1898. $conditions = [
  1899. 'min_length' => $passwordLength >= $minLength
  1900. ];
  1901. $digits = 0;
  1902. $lowerCase = 0;
  1903. $upperCase = 0;
  1904. for ($i = 0; $i < $passwordLength; $i++) {
  1905. $currentCharacterCode = api_ord(api_substr($password, $i, 1));
  1906. if ($currentCharacterCode >= 65 && $currentCharacterCode <= 90) {
  1907. $upperCase++;
  1908. }
  1909. if ($currentCharacterCode >= 97 && $currentCharacterCode <= 122) {
  1910. $lowerCase++;
  1911. }
  1912. if ($currentCharacterCode >= 48 && $currentCharacterCode <= 57) {
  1913. $digits++;
  1914. }
  1915. }
  1916. // Min number of digits
  1917. $conditions['min_numeric'] = $digits >= $minNumbers;
  1918. if (!empty($minUpperCase)) {
  1919. // Uppercase
  1920. $conditions['min_uppercase'] = $upperCase >= $minUpperCase;
  1921. }
  1922. if (!empty($minLowerCase)) {
  1923. // Lowercase
  1924. $conditions['min_lowercase'] = $upperCase >= $minLowerCase;
  1925. }
  1926. // Min letters
  1927. $letters = $upperCase + $lowerCase;
  1928. $conditions['min_letters'] = $letters >= $minLetters;
  1929. $isPasswordOk = true;
  1930. foreach ($conditions as $condition) {
  1931. if ($condition === false) {
  1932. $isPasswordOk = false;
  1933. break;
  1934. }
  1935. }
  1936. if ($isPasswordOk === false) {
  1937. $output = get_lang('NewPasswordRequirementsNotMatched').'<br />';
  1938. $output .= Security::getPasswordRequirementsToString($conditions);
  1939. Display::addFlash(Display::return_message($output, 'warning', false));
  1940. }
  1941. return $isPasswordOk;
  1942. }
  1943. /**
  1944. * Clears the user ID from the session if it was the anonymous user. Generally
  1945. * used on out-of-tools pages to remove a user ID that could otherwise be used
  1946. * in the wrong context.
  1947. * This function is to be used in conjunction with the api_set_anonymous()
  1948. * function to simulate the user existence in case of an anonymous visit.
  1949. * @param bool database check switch - passed to api_is_anonymous()
  1950. * @return bool true if succesfully unregistered, false if not anonymous.
  1951. */
  1952. function api_clear_anonymous($db_check = false)
  1953. {
  1954. global $_user;
  1955. if (api_is_anonymous($_user['user_id'], $db_check)) {
  1956. unset($_user['user_id']);
  1957. Session::erase('_uid');
  1958. return true;
  1959. }
  1960. return false;
  1961. }
  1962. /**
  1963. * Returns the status string corresponding to the status code
  1964. * @author Noel Dieschburg
  1965. * @param the int status code
  1966. * @return string
  1967. */
  1968. function get_status_from_code($status_code)
  1969. {
  1970. switch ($status_code) {
  1971. case STUDENT:
  1972. return get_lang('Student', '');
  1973. case TEACHER:
  1974. return get_lang('Teacher', '');
  1975. case COURSEMANAGER:
  1976. return get_lang('Manager', '');
  1977. case SESSIONADMIN:
  1978. return get_lang('SessionsAdmin', '');
  1979. case DRH:
  1980. return get_lang('Drh', '');
  1981. }
  1982. }
  1983. /**
  1984. * Sets the current user as anonymous if it hasn't been identified yet. This
  1985. * function should be used inside a tool only. The function api_clear_anonymous()
  1986. * acts in the opposite direction by clearing the anonymous user's data every
  1987. * time we get on a course homepage or on a neutral page (index, admin, my space)
  1988. * @return bool true if set user as anonymous, false if user was already logged in or anonymous id could not be found
  1989. */
  1990. function api_set_anonymous()
  1991. {
  1992. global $_user;
  1993. if (!empty($_user['user_id'])) {
  1994. return false;
  1995. }
  1996. $user_id = api_get_anonymous_id();
  1997. if ($user_id == 0) {
  1998. return false;
  1999. }
  2000. if (isset($_user['is_anonymous'])) {
  2001. return false;
  2002. }
  2003. Session::erase('_user');
  2004. $_user['user_id'] = $user_id;
  2005. $_user['is_anonymous'] = true;
  2006. $GLOBALS['_user'] = $_user;
  2007. Session::write('_user', $_user);
  2008. return true;
  2009. }
  2010. /**
  2011. * Gets the current Chamilo (not PHP/cookie) session ID
  2012. * @return int O if no active session, the session ID otherwise
  2013. */
  2014. function api_get_session_id()
  2015. {
  2016. return (int) Session::read('id_session', 0);
  2017. }
  2018. /**
  2019. * Gets the current Chamilo (not social network) group ID
  2020. * @return int O if no active session, the session ID otherwise
  2021. */
  2022. function api_get_group_id()
  2023. {
  2024. return Session::read('_gid', 0);
  2025. }
  2026. /**
  2027. * Gets the current or given session name
  2028. * @param int Session ID (optional)
  2029. * @return string The session name, or null if not found
  2030. */
  2031. function api_get_session_name($session_id = 0)
  2032. {
  2033. if (empty($session_id)) {
  2034. $session_id = api_get_session_id();
  2035. if (empty($session_id)) {
  2036. return null;
  2037. }
  2038. }
  2039. $t = Database::get_main_table(TABLE_MAIN_SESSION);
  2040. $s = "SELECT name FROM $t WHERE id = ".(int) $session_id;
  2041. $r = Database::query($s);
  2042. $c = Database::num_rows($r);
  2043. if ($c > 0) {
  2044. //technically, there can be only one, but anyway we take the first
  2045. $rec = Database::fetch_array($r);
  2046. return $rec['name'];
  2047. }
  2048. return null;
  2049. }
  2050. /**
  2051. * Gets the session info by id
  2052. * @param int $id Session ID
  2053. * @return array information of the session
  2054. */
  2055. function api_get_session_info($id)
  2056. {
  2057. return SessionManager::fetch($id);
  2058. }
  2059. /**
  2060. * Gets the session visibility by session id
  2061. * @param int $session_id
  2062. * @param int $courseId
  2063. * @param bool $ignore_visibility_for_admins
  2064. * @return int
  2065. * 0 = session still available,
  2066. * SESSION_VISIBLE_READ_ONLY = 1,
  2067. * SESSION_VISIBLE = 2,
  2068. * SESSION_INVISIBLE = 3
  2069. */
  2070. function api_get_session_visibility(
  2071. $session_id,
  2072. $courseId = null,
  2073. $ignore_visibility_for_admins = true
  2074. ) {
  2075. if (api_is_platform_admin()) {
  2076. if ($ignore_visibility_for_admins) {
  2077. return SESSION_AVAILABLE;
  2078. }
  2079. }
  2080. $now = time();
  2081. if (empty($session_id)) {
  2082. return 0; // Means that the session is still available.
  2083. }
  2084. $session_id = intval($session_id);
  2085. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  2086. $result = Database::query("SELECT * FROM $tbl_session WHERE id = $session_id");
  2087. if (Database::num_rows($result) <= 0) {
  2088. return SESSION_INVISIBLE;
  2089. }
  2090. $row = Database::fetch_array($result, 'ASSOC');
  2091. $visibility = $original_visibility = $row['visibility'];
  2092. // I don't care the session visibility.
  2093. if (empty($row['access_start_date']) && empty($row['access_end_date'])) {
  2094. // Session duration per student.
  2095. if (isset($row['duration']) && !empty($row['duration'])) {
  2096. $duration = $row['duration'] * 24 * 60 * 60;
  2097. $courseAccess = CourseManager::getFirstCourseAccessPerSessionAndUser($session_id, api_get_user_id());
  2098. // If there is a session duration but there is no previous
  2099. // access by the user, then the session is still available
  2100. if (count($courseAccess) == 0) {
  2101. return SESSION_AVAILABLE;
  2102. }
  2103. $currentTime = time();
  2104. $firstAccess = isset($courseAccess['login_course_date'])
  2105. ? api_strtotime($courseAccess['login_course_date'], 'UTC')
  2106. : 0;
  2107. $userDurationData = SessionManager::getUserSession(
  2108. api_get_user_id(),
  2109. $session_id
  2110. );
  2111. $userDuration = isset($userDurationData['duration'])
  2112. ? (intval($userDurationData['duration']) * 24 * 60 * 60)
  2113. : 0;
  2114. $totalDuration = $firstAccess + $duration + $userDuration;
  2115. return $totalDuration > $currentTime ? SESSION_AVAILABLE : SESSION_VISIBLE_READ_ONLY;
  2116. }
  2117. return SESSION_AVAILABLE;
  2118. }
  2119. // If start date was set.
  2120. if (!empty($row['access_start_date'])) {
  2121. $visibility = $now > api_strtotime($row['access_start_date'], 'UTC') ? SESSION_AVAILABLE : SESSION_INVISIBLE;
  2122. }
  2123. // If the end date was set.
  2124. if (!empty($row['access_end_date'])) {
  2125. // Only if date_start said that it was ok
  2126. if ($visibility === SESSION_AVAILABLE) {
  2127. $visibility = $now < api_strtotime($row['access_end_date'], 'UTC')
  2128. ? SESSION_AVAILABLE // Date still available
  2129. : $row['visibility']; // Session ends
  2130. }
  2131. }
  2132. /* If I'm a coach the visibility can change in my favor depending in
  2133. the coach dates */
  2134. $isCoach = api_is_coach($session_id, $courseId);
  2135. if ($isCoach) {
  2136. // Test start date.
  2137. if (!empty($row['coach_access_start_date'])) {
  2138. $start = api_strtotime($row['coach_access_start_date'], 'UTC');
  2139. $visibility = $start < $now ? SESSION_AVAILABLE : SESSION_INVISIBLE;
  2140. }
  2141. // Test end date.
  2142. if (!empty($row['coach_access_end_date'])) {
  2143. if ($visibility === SESSION_AVAILABLE) {
  2144. $endDateCoach = api_strtotime($row['coach_access_end_date'], 'UTC');
  2145. $visibility = $endDateCoach >= $now ? SESSION_AVAILABLE : $row['visibility'];
  2146. }
  2147. }
  2148. }
  2149. return $visibility;
  2150. }
  2151. /**
  2152. * This function returns a (star) session icon if the session is not null and
  2153. * the user is not a student
  2154. * @param int $session_id
  2155. * @param int $status_id User status id - if 5 (student), will return empty
  2156. * @return string Session icon
  2157. */
  2158. function api_get_session_image($session_id, $status_id)
  2159. {
  2160. $session_id = (int) $session_id;
  2161. $session_img = '';
  2162. if ((int) $status_id != 5) { //check whether is not a student
  2163. if ($session_id > 0) {
  2164. $session_img = "&nbsp;&nbsp;".Display::return_icon(
  2165. 'star.png',
  2166. get_lang('SessionSpecificResource'),
  2167. array('align' => 'absmiddle'),
  2168. ICON_SIZE_SMALL
  2169. );
  2170. }
  2171. }
  2172. return $session_img;
  2173. }
  2174. /**
  2175. * This function add an additional condition according to the session of the course
  2176. * @param int $session_id session id
  2177. * @param bool $and optional, true if more than one condition false if the only condition in the query
  2178. * @param bool $with_base_content optional, true to accept content with session=0 as well,
  2179. * false for strict session condition
  2180. * @param string $session_field
  2181. * @return string condition of the session
  2182. */
  2183. function api_get_session_condition(
  2184. $session_id,
  2185. $and = true,
  2186. $with_base_content = false,
  2187. $session_field = 'session_id'
  2188. ) {
  2189. $session_id = intval($session_id);
  2190. if (empty($session_field)) {
  2191. $session_field = "session_id";
  2192. }
  2193. // Condition to show resources by session
  2194. $condition_add = $and ? " AND " : " WHERE ";
  2195. if ($with_base_content) {
  2196. $condition_session = $condition_add." ( $session_field = $session_id OR $session_field = 0 OR $session_field IS NULL) ";
  2197. } else {
  2198. if (empty($session_id)) {
  2199. $condition_session = $condition_add." ($session_field = $session_id OR $session_field IS NULL)";
  2200. } else {
  2201. $condition_session = $condition_add." $session_field = $session_id ";
  2202. }
  2203. }
  2204. return $condition_session;
  2205. }
  2206. /**
  2207. * Returns the value of a setting from the web-adjustable admin config settings.
  2208. *
  2209. * WARNING true/false are stored as string, so when comparing you need to check e.g.
  2210. * if (api_get_setting('show_navigation_menu') == 'true') //CORRECT
  2211. * instead of
  2212. * if (api_get_setting('show_navigation_menu') == true) //INCORRECT
  2213. * @param string $variable The variable name
  2214. * @param string $key The subkey (sub-variable) if any. Defaults to NULL
  2215. * @return string
  2216. * @author René Haentjens
  2217. * @author Bart Mollet
  2218. */
  2219. function api_get_setting($variable, $key = null)
  2220. {
  2221. global $_setting;
  2222. if ($variable == 'header_extra_content') {
  2223. $filename = api_get_home_path().'header_extra_content.txt';
  2224. if (file_exists($filename)) {
  2225. $value = file_get_contents($filename);
  2226. return $value;
  2227. } else {
  2228. return '';
  2229. }
  2230. }
  2231. if ($variable == 'footer_extra_content') {
  2232. $filename = api_get_home_path().'footer_extra_content.txt';
  2233. if (file_exists($filename)) {
  2234. $value = file_get_contents($filename);
  2235. return $value;
  2236. } else {
  2237. return '';
  2238. }
  2239. }
  2240. $value = null;
  2241. if (is_null($key)) {
  2242. $value = ((isset($_setting[$variable]) && $_setting[$variable] != '') ? $_setting[$variable] : null);
  2243. } else {
  2244. if (isset($_setting[$variable][$key])) {
  2245. $value = $_setting[$variable][$key];
  2246. }
  2247. }
  2248. return $value;
  2249. }
  2250. /**
  2251. * @param string $plugin
  2252. * @param string $variable
  2253. * @return string
  2254. */
  2255. function api_get_plugin_setting($plugin, $variable)
  2256. {
  2257. $variableName = $plugin.'_'.$variable;
  2258. $result = api_get_setting($variableName);
  2259. if (isset($result[$plugin])) {
  2260. $value = $result[$plugin];
  2261. if (@unserialize($value) !== false) {
  2262. $value = unserialize($value);
  2263. }
  2264. return $value;
  2265. }
  2266. return null;
  2267. }
  2268. /**
  2269. * Returns the value of a setting from the web-adjustable admin config settings.
  2270. **/
  2271. function api_get_settings_params($params)
  2272. {
  2273. $table = Database::get_main_table(TABLE_MAIN_SETTINGS_CURRENT);
  2274. $result = Database::select('*', $table, array('where' => $params));
  2275. return $result;
  2276. }
  2277. function api_get_settings_params_simple($params)
  2278. {
  2279. $table = Database::get_main_table(TABLE_MAIN_SETTINGS_CURRENT);
  2280. $result = Database::select('*', $table, array('where' => $params), 'one');
  2281. return $result;
  2282. }
  2283. /**
  2284. * Returns the value of a setting from the web-adjustable admin config settings.
  2285. **/
  2286. function api_delete_settings_params($params)
  2287. {
  2288. $table = Database::get_main_table(TABLE_MAIN_SETTINGS_CURRENT);
  2289. $result = Database::delete($table, $params);
  2290. return $result;
  2291. }
  2292. /**
  2293. * Returns an escaped version of $_SERVER['PHP_SELF'] to avoid XSS injection
  2294. * @return string Escaped version of $_SERVER['PHP_SELF']
  2295. */
  2296. function api_get_self()
  2297. {
  2298. return htmlentities($_SERVER['PHP_SELF']);
  2299. }
  2300. /* USER PERMISSIONS */
  2301. /**
  2302. * Checks whether current user is a platform administrator
  2303. * @param boolean $allowSessionAdmins Whether session admins should be considered admins or not
  2304. * @param boolean $allowDrh Whether HR directors should be considered admins or not
  2305. * @return boolean True if the user has platform admin rights,
  2306. * false otherwise.
  2307. * @see usermanager::is_admin(user_id) for a user-id specific function
  2308. */
  2309. function api_is_platform_admin($allowSessionAdmins = false, $allowDrh = false)
  2310. {
  2311. $isAdmin = Session::read('is_platformAdmin');
  2312. if ($isAdmin) {
  2313. return true;
  2314. }
  2315. $user = api_get_user_info();
  2316. return
  2317. isset($user['status']) &&
  2318. (
  2319. ($allowSessionAdmins && $user['status'] == SESSIONADMIN) ||
  2320. ($allowDrh && $user['status'] == DRH)
  2321. );
  2322. }
  2323. /**
  2324. * Checks whether the user given as user id is in the admin table.
  2325. * @param int $user_id If none provided, will use current user
  2326. * @param int $url URL ID. If provided, also check if the user is active on given URL
  2327. * @return bool True if the user is admin, false otherwise
  2328. */
  2329. function api_is_platform_admin_by_id($user_id = null, $url = null)
  2330. {
  2331. $user_id = intval($user_id);
  2332. if (empty($user_id)) {
  2333. $user_id = api_get_user_id();
  2334. }
  2335. $admin_table = Database::get_main_table(TABLE_MAIN_ADMIN);
  2336. $sql = "SELECT * FROM $admin_table WHERE user_id = $user_id";
  2337. $res = Database::query($sql);
  2338. $is_admin = Database::num_rows($res) === 1;
  2339. if (!$is_admin || !isset($url)) {
  2340. return $is_admin;
  2341. }
  2342. // We get here only if $url is set
  2343. $url = intval($url);
  2344. $url_user_table = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
  2345. $sql = "SELECT * FROM $url_user_table
  2346. WHERE access_url_id = $url AND user_id = $user_id";
  2347. $res = Database::query($sql);
  2348. $result = Database::num_rows($res) === 1;
  2349. return $result;
  2350. }
  2351. /**
  2352. * Returns the user's numeric status ID from the users table
  2353. * @param int $user_id If none provided, will use current user
  2354. * @return int User's status (1 for teacher, 5 for student, etc)
  2355. */
  2356. function api_get_user_status($user_id = null)
  2357. {
  2358. $user_id = intval($user_id);
  2359. if (empty($user_id)) {
  2360. $user_id = api_get_user_id();
  2361. }
  2362. $table = Database::get_main_table(TABLE_MAIN_USER);
  2363. $sql = "SELECT status FROM $table WHERE user_id = $user_id ";
  2364. $result = Database::query($sql);
  2365. $status = null;
  2366. if (Database::num_rows($result)) {
  2367. $row = Database::fetch_array($result);
  2368. $status = $row['status'];
  2369. }
  2370. return $status;
  2371. }
  2372. /**
  2373. * Checks whether current user is allowed to create courses
  2374. * @return boolean True if the user has course creation rights,
  2375. * false otherwise.
  2376. */
  2377. function api_is_allowed_to_create_course()
  2378. {
  2379. if (api_is_platform_admin()) {
  2380. return true;
  2381. }
  2382. // Teachers can only create courses
  2383. if (api_is_teacher()) {
  2384. if (api_get_setting('allow_users_to_create_courses') === 'true') {
  2385. return true;
  2386. } else {
  2387. return false;
  2388. }
  2389. }
  2390. return Session::read('is_allowedCreateCourse');
  2391. }
  2392. /**
  2393. * Checks whether the current user is a course administrator
  2394. * @return boolean True if current user is a course administrator
  2395. */
  2396. function api_is_course_admin()
  2397. {
  2398. if (api_is_platform_admin()) {
  2399. return true;
  2400. }
  2401. return Session::read('is_courseAdmin');
  2402. }
  2403. /**
  2404. * Checks whether the current user is a course coach
  2405. * Based on the presence of user in session.id_coach (session general coach)
  2406. * @return bool True if current user is a course coach
  2407. */
  2408. function api_is_session_general_coach()
  2409. {
  2410. return Session::read('is_session_general_coach');
  2411. }
  2412. /**
  2413. * Checks whether the current user is a course tutor
  2414. * Based on the presence of user in session_rel_course_rel_user.user_id with status = 2
  2415. * @return bool True if current user is a course tutor
  2416. */
  2417. function api_is_course_tutor()
  2418. {
  2419. return Session::read('is_courseTutor');
  2420. }
  2421. /**
  2422. * @param int $user_id
  2423. * @param int $courseId
  2424. * @param int $session_id
  2425. * @return bool
  2426. */
  2427. function api_is_course_session_coach($user_id, $courseId, $session_id)
  2428. {
  2429. $session_table = Database::get_main_table(TABLE_MAIN_SESSION);
  2430. $session_rel_course_rel_user_table = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  2431. $user_id = intval($user_id);
  2432. $session_id = intval($session_id);
  2433. $courseId = intval($courseId);
  2434. $sql = "SELECT DISTINCT session.id
  2435. FROM $session_table
  2436. INNER JOIN $session_rel_course_rel_user_table session_rc_ru
  2437. ON session.id = session_rc_ru.session_id
  2438. WHERE
  2439. session_rc_ru.user_id = '".$user_id."' AND
  2440. session_rc_ru.c_id = '$courseId' AND
  2441. session_rc_ru.status = 2 AND
  2442. session_rc_ru.session_id = '$session_id'";
  2443. $result = Database::query($sql);
  2444. return Database::num_rows($result) > 0;
  2445. }
  2446. /**
  2447. * Checks whether the current user is a course or session coach
  2448. * @param int $session_id
  2449. * @param int $courseId
  2450. * @param bool Check whether we are in student view and, if we are, return false
  2451. * @return boolean True if current user is a course or session coach
  2452. */
  2453. function api_is_coach($session_id = 0, $courseId = null, $check_student_view = true)
  2454. {
  2455. $userId = api_get_user_id();
  2456. if (!empty($session_id)) {
  2457. $session_id = intval($session_id);
  2458. } else {
  2459. $session_id = api_get_session_id();
  2460. }
  2461. // The student preview was on
  2462. if ($check_student_view && api_is_student_view_active()) {
  2463. return false;
  2464. }
  2465. if (!empty($courseId)) {
  2466. $courseId = intval($courseId);
  2467. } else {
  2468. $courseId = api_get_course_int_id();
  2469. }
  2470. $session_table = Database::get_main_table(TABLE_MAIN_SESSION);
  2471. $session_rel_course_rel_user_table = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  2472. $sessionIsCoach = null;
  2473. if (!empty($courseId)) {
  2474. $sql = "SELECT DISTINCT s.id, name, access_start_date, access_end_date
  2475. FROM $session_table s
  2476. INNER JOIN $session_rel_course_rel_user_table session_rc_ru
  2477. ON session_rc_ru.session_id = s.id AND session_rc_ru.user_id = '".$userId."'
  2478. WHERE
  2479. session_rc_ru.c_id = '$courseId' AND
  2480. session_rc_ru.status = 2 AND
  2481. session_rc_ru.session_id = '$session_id'";
  2482. $result = Database::query($sql);
  2483. $sessionIsCoach = Database::store_result($result);
  2484. }
  2485. if (!empty($session_id)) {
  2486. $sql = "SELECT DISTINCT id, name, access_start_date, access_end_date
  2487. FROM $session_table
  2488. WHERE session.id_coach = $userId AND id = $session_id
  2489. ORDER BY access_start_date, access_end_date, name";
  2490. $result = Database::query($sql);
  2491. if (!empty($sessionIsCoach)) {
  2492. $sessionIsCoach = array_merge(
  2493. $sessionIsCoach,
  2494. Database::store_result($result)
  2495. );
  2496. } else {
  2497. $sessionIsCoach = Database::store_result($result);
  2498. }
  2499. }
  2500. return count($sessionIsCoach) > 0;
  2501. }
  2502. /**
  2503. * Checks whether the current user is a session administrator
  2504. * @return boolean True if current user is a course administrator
  2505. */
  2506. function api_is_session_admin()
  2507. {
  2508. $user = api_get_user_info();
  2509. return isset($user['status']) && $user['status'] == SESSIONADMIN;
  2510. }
  2511. /**
  2512. * Checks whether the current user is a human resources manager
  2513. * @return boolean True if current user is a human resources manager
  2514. */
  2515. function api_is_drh()
  2516. {
  2517. $user = api_get_user_info();
  2518. return isset($user['status']) && $user['status'] == DRH;
  2519. }
  2520. /**
  2521. * Checks whether the current user is a student
  2522. * @return boolean True if current user is a human resources manager
  2523. */
  2524. function api_is_student()
  2525. {
  2526. $user = api_get_user_info();
  2527. return isset($user['status']) && $user['status'] == STUDENT;
  2528. }
  2529. /**
  2530. * Checks whether the current user has the status 'teacher'
  2531. * @return boolean True if current user is a human resources manager
  2532. */
  2533. function api_is_teacher()
  2534. {
  2535. $user = api_get_user_info();
  2536. return isset($user['status']) && $user['status'] == COURSEMANAGER;
  2537. }
  2538. /**
  2539. * Checks whether the current user is a invited user
  2540. * @return boolean
  2541. */
  2542. function api_is_invitee()
  2543. {
  2544. $user = api_get_user_info();
  2545. return isset($user['status']) && $user['status'] == INVITEE;
  2546. }
  2547. /**
  2548. * This function checks whether a session is assigned into a category
  2549. * @param int - session id
  2550. * @param string - category name
  2551. * @return bool - true if is found, otherwise false
  2552. */
  2553. function api_is_session_in_category($session_id, $category_name)
  2554. {
  2555. $session_id = intval($session_id);
  2556. $category_name = Database::escape_string($category_name);
  2557. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  2558. $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
  2559. $sql = "SELECT 1
  2560. FROM $tbl_session
  2561. WHERE $session_id IN (
  2562. SELECT s.id FROM $tbl_session s, $tbl_session_category sc
  2563. WHERE
  2564. s.session_category_id = sc.id AND
  2565. sc.name LIKE '%$category_name'
  2566. )";
  2567. $rs = Database::query($sql);
  2568. if (Database::num_rows($rs) > 0) {
  2569. return true;
  2570. } else {
  2571. return false;
  2572. }
  2573. }
  2574. /**
  2575. * Displays the title of a tool.
  2576. * Normal use: parameter is a string:
  2577. * api_display_tool_title("My Tool")
  2578. *
  2579. * Optionally, there can be a subtitle below
  2580. * the normal title, and / or a supra title above the normal title.
  2581. *
  2582. * e.g. supra title:
  2583. * group
  2584. * GROUP PROPERTIES
  2585. *
  2586. * e.g. subtitle:
  2587. * AGENDA
  2588. * calender & events tool
  2589. *
  2590. * @author Hugues Peeters <hugues.peeters@claroline.net>
  2591. * @param mixed $title_element - it could either be a string or an array
  2592. * containing 'supraTitle', 'mainTitle',
  2593. * 'subTitle'
  2594. * @return void
  2595. */
  2596. function api_display_tool_title($title_element)
  2597. {
  2598. if (is_string($title_element)) {
  2599. $tit = $title_element;
  2600. unset($title_element);
  2601. $title_element['mainTitle'] = $tit;
  2602. }
  2603. echo '<h3>';
  2604. if (!empty($title_element['supraTitle'])) {
  2605. echo '<small>'.$title_element['supraTitle'].'</small><br />';
  2606. }
  2607. if (!empty($title_element['mainTitle'])) {
  2608. echo $title_element['mainTitle'];
  2609. }
  2610. if (!empty($title_element['subTitle'])) {
  2611. echo '<br /><small>'.$title_element['subTitle'].'</small>';
  2612. }
  2613. echo '</h3>';
  2614. }
  2615. /**
  2616. * Displays options for switching between student view and course manager view
  2617. *
  2618. * Changes in version 1.2 (Patrick Cool)
  2619. * Student view switch now behaves as a real switch. It maintains its current state until the state
  2620. * is changed explicitly
  2621. *
  2622. * Changes in version 1.1 (Patrick Cool)
  2623. * student view now works correctly in subfolders of the document tool
  2624. * student view works correctly in the new links tool
  2625. *
  2626. * Example code for using this in your tools:
  2627. * //if ($is_courseAdmin && api_get_setting('student_view_enabled') == 'true') {
  2628. * // display_tool_view_option($isStudentView);
  2629. * //}
  2630. * //and in later sections, use api_is_allowed_to_edit()
  2631. *
  2632. * @author Roan Embrechts
  2633. * @author Patrick Cool
  2634. * @author Julio Montoya, changes added in Chamilo
  2635. * @version 1.2
  2636. * @todo rewrite code so it is easier to understand
  2637. */
  2638. function api_display_tool_view_option()
  2639. {
  2640. if (api_get_setting('student_view_enabled') != 'true') {
  2641. return '';
  2642. }
  2643. $sourceurl = '';
  2644. $is_framed = false;
  2645. // Exceptions apply for all multi-frames pages
  2646. if (strpos($_SERVER['REQUEST_URI'], 'chat/chat_banner.php') !== false) {
  2647. // The chat is a multiframe bit that doesn't work too well with the student_view, so do not show the link
  2648. return '';
  2649. }
  2650. // Uncomment to remove student view link from document view page
  2651. if (strpos($_SERVER['REQUEST_URI'], 'lp/lp_header.php') !== false) {
  2652. if (empty($_GET['lp_id'])) {
  2653. return '';
  2654. }
  2655. $sourceurl = substr($_SERVER['REQUEST_URI'], 0, strpos($_SERVER['REQUEST_URI'], '?'));
  2656. $sourceurl = str_replace(
  2657. 'lp/lp_header.php',
  2658. 'lp/lp_controller.php?'.api_get_cidreq().'&action=view&lp_id='.intval($_GET['lp_id']).'&isStudentView='.($_SESSION['studentview'] == 'studentview' ? 'false' : 'true'),
  2659. $sourceurl
  2660. );
  2661. //showinframes doesn't handle student view anyway...
  2662. //return '';
  2663. $is_framed = true;
  2664. }
  2665. // Check whether the $_SERVER['REQUEST_URI'] contains already url parameters (thus a questionmark)
  2666. if (!$is_framed) {
  2667. if (strpos($_SERVER['REQUEST_URI'], '?') === false) {
  2668. $sourceurl = api_get_self().'?'.api_get_cidreq();
  2669. } else {
  2670. $sourceurl = $_SERVER['REQUEST_URI'];
  2671. }
  2672. }
  2673. $output_string = '';
  2674. if (!empty($_SESSION['studentview'])) {
  2675. if ($_SESSION['studentview'] == 'studentview') {
  2676. // We have to remove the isStudentView=true from the $sourceurl
  2677. $sourceurl = str_replace('&isStudentView=true', '', $sourceurl);
  2678. $sourceurl = str_replace('&isStudentView=false', '', $sourceurl);
  2679. $output_string .= '<a class="btn btn-primary btn-sm" href="'.$sourceurl.'&isStudentView=false" target="_self">'.
  2680. Display::returnFontAwesomeIcon('eye').' '.get_lang('SwitchToTeacherView').'</a>';
  2681. } elseif ($_SESSION['studentview'] == 'teacherview') {
  2682. // Switching to teacherview
  2683. $sourceurl = str_replace('&isStudentView=true', '', $sourceurl);
  2684. $sourceurl = str_replace('&isStudentView=false', '', $sourceurl);
  2685. $output_string .= '<a class="btn btn-default btn-sm" href="'.$sourceurl.'&isStudentView=true" target="_self">'.
  2686. Display::returnFontAwesomeIcon('eye').' '.get_lang('SwitchToStudentView').'</a>';
  2687. }
  2688. } else {
  2689. $output_string .= '<a class="btn btn-default btn-sm" href="'.$sourceurl.'&isStudentView=true" target="_self">'.
  2690. Display::returnFontAwesomeIcon('eye').' '.get_lang('SwitchToStudentView').'</a>';
  2691. }
  2692. $html = Display::tag('div', $output_string, array('class'=>'view-options'));
  2693. return $html;
  2694. }
  2695. // TODO: This is for the permission section.
  2696. /**
  2697. * Function that removes the need to directly use is_courseAdmin global in
  2698. * tool scripts. It returns true or false depending on the user's rights in
  2699. * this particular course.
  2700. * Optionally checking for tutor and coach roles here allows us to use the
  2701. * student_view feature altogether with these roles as well.
  2702. * @param bool Whether to check if the user has the tutor role
  2703. * @param bool Whether to check if the user has the coach role
  2704. * @param bool Whether to check if the user has the session coach role
  2705. * @param bool check the student view or not
  2706. *
  2707. * @author Roan Embrechts
  2708. * @author Patrick Cool
  2709. * @author Julio Montoya
  2710. * @version 1.1, February 2004
  2711. * @return boolean true: the user has the rights to edit, false: he does not
  2712. */
  2713. function api_is_allowed_to_edit(
  2714. $tutor = false,
  2715. $coach = false,
  2716. $session_coach = false,
  2717. $check_student_view = true
  2718. ) {
  2719. $sessionId = api_get_session_id();
  2720. $is_allowed_coach_to_edit = api_is_coach(null, null, $check_student_view);
  2721. $session_visibility = api_get_session_visibility($sessionId);
  2722. // Admins can edit anything.
  2723. if (api_is_platform_admin(false)) {
  2724. //The student preview was on
  2725. if ($check_student_view && api_is_student_view_active()) {
  2726. return false;
  2727. } else {
  2728. return true;
  2729. }
  2730. }
  2731. $is_courseAdmin = api_is_course_admin();
  2732. if (!$is_courseAdmin && $tutor) {
  2733. // If we also want to check if the user is a tutor...
  2734. $is_courseAdmin = $is_courseAdmin || api_is_course_tutor();
  2735. }
  2736. if (!$is_courseAdmin && $coach) {
  2737. // If we also want to check if the user is a coach...';
  2738. // Check if session visibility is read only for coaches.
  2739. if ($session_visibility == SESSION_VISIBLE_READ_ONLY) {
  2740. $is_allowed_coach_to_edit = false;
  2741. }
  2742. if (api_get_setting('allow_coach_to_edit_course_session') == 'true') {
  2743. // Check if coach is allowed to edit a course.
  2744. $is_courseAdmin = $is_courseAdmin || $is_allowed_coach_to_edit;
  2745. }
  2746. }
  2747. if (!$is_courseAdmin && $session_coach) {
  2748. $is_courseAdmin = $is_courseAdmin || $is_allowed_coach_to_edit;
  2749. }
  2750. // Check if the student_view is enabled, and if so, if it is activated.
  2751. if (api_get_setting('student_view_enabled') == 'true') {
  2752. if (!empty($sessionId)) {
  2753. // Check if session visibility is read only for coaches.
  2754. if ($session_visibility == SESSION_VISIBLE_READ_ONLY) {
  2755. $is_allowed_coach_to_edit = false;
  2756. }
  2757. if (api_get_setting('allow_coach_to_edit_course_session') == 'true') {
  2758. // Check if coach is allowed to edit a course.
  2759. $is_allowed = $is_allowed_coach_to_edit;
  2760. } else {
  2761. $is_allowed = false;
  2762. }
  2763. if ($check_student_view) {
  2764. $is_allowed = $is_allowed && $_SESSION['studentview'] != 'studentview';
  2765. }
  2766. } else {
  2767. if ($check_student_view) {
  2768. $is_allowed = $is_courseAdmin && $_SESSION['studentview'] != 'studentview';
  2769. } else {
  2770. $is_allowed = $is_courseAdmin;
  2771. }
  2772. }
  2773. return $is_allowed;
  2774. } else {
  2775. return $is_courseAdmin;
  2776. }
  2777. }
  2778. /**
  2779. * Returns true if user is a course coach of at least one course in session
  2780. * @param int $sessionId
  2781. * @return bool
  2782. */
  2783. function api_is_coach_of_course_in_session($sessionId)
  2784. {
  2785. if (api_is_platform_admin()) {
  2786. return true;
  2787. }
  2788. $userId = api_get_user_id();
  2789. $courseList = UserManager::get_courses_list_by_session(
  2790. $userId,
  2791. $sessionId
  2792. );
  2793. // Session visibility.
  2794. $visibility = api_get_session_visibility(
  2795. $sessionId,
  2796. null,
  2797. false
  2798. );
  2799. if ($visibility != SESSION_VISIBLE && !empty($courseList)) {
  2800. // Course Coach session visibility.
  2801. $blockedCourseCount = 0;
  2802. $closedVisibilityList = array(
  2803. COURSE_VISIBILITY_CLOSED,
  2804. COURSE_VISIBILITY_HIDDEN
  2805. );
  2806. foreach ($courseList as $course) {
  2807. // Checking session visibility
  2808. $sessionCourseVisibility = api_get_session_visibility(
  2809. $sessionId,
  2810. $course['real_id']
  2811. );
  2812. $courseIsVisible = !in_array(
  2813. $course['visibility'],
  2814. $closedVisibilityList
  2815. );
  2816. if ($courseIsVisible === false || $sessionCourseVisibility == SESSION_INVISIBLE) {
  2817. $blockedCourseCount++;
  2818. }
  2819. }
  2820. // If all courses are blocked then no show in the list.
  2821. if ($blockedCourseCount === count($courseList)) {
  2822. $visibility = SESSION_INVISIBLE;
  2823. } else {
  2824. $visibility = SESSION_VISIBLE;
  2825. }
  2826. }
  2827. switch ($visibility) {
  2828. case SESSION_VISIBLE_READ_ONLY:
  2829. case SESSION_VISIBLE:
  2830. case SESSION_AVAILABLE:
  2831. return true;
  2832. break;
  2833. case SESSION_INVISIBLE:
  2834. return false;
  2835. }
  2836. return false;
  2837. }
  2838. /**
  2839. * Checks if a student can edit contents in a session depending
  2840. * on the session visibility
  2841. * @param bool $tutor Whether to check if the user has the tutor role
  2842. * @param bool $coach Whether to check if the user has the coach role
  2843. * @return boolean true: the user has the rights to edit, false: he does not
  2844. */
  2845. function api_is_allowed_to_session_edit($tutor = false, $coach = false)
  2846. {
  2847. if (api_is_allowed_to_edit($tutor, $coach)) {
  2848. // If I'm a teacher, I will return true in order to not affect the normal behaviour of Chamilo tools.
  2849. return true;
  2850. } else {
  2851. $sessionId = api_get_session_id();
  2852. if ($sessionId == 0) {
  2853. // I'm not in a session so i will return true to not affect the normal behaviour of Chamilo tools.
  2854. return true;
  2855. } else {
  2856. // I'm in a session and I'm a student
  2857. // Get the session visibility
  2858. $session_visibility = api_get_session_visibility($sessionId);
  2859. // if 5 the session is still available
  2860. //@todo We could load the session_rel_course_rel_user permission to increase the level of detail.
  2861. //echo api_get_user_id();
  2862. //echo api_get_course_id();
  2863. switch ($session_visibility) {
  2864. case SESSION_VISIBLE_READ_ONLY: // 1
  2865. return false;
  2866. case SESSION_VISIBLE: // 2
  2867. return true;
  2868. case SESSION_INVISIBLE: // 3
  2869. return false;
  2870. case SESSION_AVAILABLE: //5
  2871. return true;
  2872. }
  2873. }
  2874. }
  2875. }
  2876. /**
  2877. * Checks whether the user is allowed in a specific tool for a specific action
  2878. * @param string $tool the tool we are checking if the user has a certain permission
  2879. * @param string $action the action we are checking (add, edit, delete, move, visibility)
  2880. * @return bool
  2881. * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
  2882. * @author Julio Montoya
  2883. * @version 1.0
  2884. */
  2885. function api_is_allowed($tool, $action, $task_id = 0)
  2886. {
  2887. $_user = api_get_user_info();
  2888. $_course = api_get_course_info();
  2889. if (api_is_course_admin()) {
  2890. return true;
  2891. }
  2892. if (is_array($_course) and count($_course) > 0) {
  2893. require_once api_get_path(SYS_CODE_PATH).'permissions/permissions_functions.inc.php';
  2894. // Getting the permissions of this user.
  2895. if ($task_id == 0) {
  2896. $user_permissions = get_permissions('user', $_user['user_id']);
  2897. $_SESSION['total_permissions'][$_course['code']] = $user_permissions;
  2898. }
  2899. // Getting the permissions of the task.
  2900. if ($task_id != 0) {
  2901. $task_permissions = get_permissions('task', $task_id);
  2902. /* !!! */$_SESSION['total_permissions'][$_course['code']] = $task_permissions;
  2903. }
  2904. //print_r($_SESSION['total_permissions']);
  2905. // Getting the permissions of the groups of the user
  2906. //$groups_of_user = GroupManager::get_group_ids($_course['db_name'], $_user['user_id']);
  2907. //foreach($groups_of_user as $group)
  2908. // $this_group_permissions = get_permissions('group', $group);
  2909. // Getting the permissions of the courseroles of the user
  2910. $user_courserole_permissions = get_roles_permissions('user', $_user['user_id']);
  2911. // Getting the permissions of the platformroles of the user
  2912. //$user_platformrole_permissions = get_roles_permissions('user', $_user['user_id'], ', platform');
  2913. // Getting the permissions of the roles of the groups of the user
  2914. //foreach($groups_of_user as $group)
  2915. // $this_group_courserole_permissions = get_roles_permissions('group', $group);
  2916. // Getting the permissions of the platformroles of the groups of the user
  2917. //foreach($groups_of_user as $group)
  2918. // $this_group_platformrole_permissions = get_roles_permissions('group', $group, 'platform');
  2919. }
  2920. // If the permissions are limited, we have to map the extended ones to the limited ones.
  2921. if (api_get_setting('permissions') == 'limited') {
  2922. if ($action == 'Visibility') {
  2923. $action = 'Edit';
  2924. }
  2925. if ($action == 'Move') {
  2926. $action = 'Edit';
  2927. }
  2928. }
  2929. // The session that contains all the permissions already exists for this course
  2930. // so there is no need to requery everything.
  2931. //my_print_r($_SESSION['total_permissions'][$_course['code']][$tool]);
  2932. if (is_array($_SESSION['total_permissions'][$_course['code']][$tool])) {
  2933. if (in_array($action, $_SESSION['total_permissions'][$_course['code']][$tool])) {
  2934. return true;
  2935. } else {
  2936. return false;
  2937. }
  2938. }
  2939. }
  2940. /**
  2941. * Tells whether this user is an anonymous user
  2942. * @param int $user_id User ID (optional, will take session ID if not provided)
  2943. * @param bool $db_check Whether to check in the database (true) or simply in
  2944. * the session (false) to see if the current user is the anonymous user
  2945. * @return bool true if this user is anonymous, false otherwise
  2946. */
  2947. function api_is_anonymous($user_id = null, $db_check = false)
  2948. {
  2949. if (!isset($user_id)) {
  2950. $user_id = api_get_user_id();
  2951. }
  2952. if ($db_check) {
  2953. $info = api_get_user_info($user_id);
  2954. if ($info['status'] == ANONYMOUS) {
  2955. return true;
  2956. }
  2957. }
  2958. $_user = api_get_user_info();
  2959. if (isset($_user['status']) && $_user['status'] == ANONYMOUS) {
  2960. //if ($_user['user_id'] == 0) {
  2961. // In some cases, api_set_anonymous doesn't seem to be triggered in local.inc.php. Make sure it is.
  2962. // Occurs in agenda for admin links - YW
  2963. global $use_anonymous;
  2964. if (isset($use_anonymous) && $use_anonymous) {
  2965. api_set_anonymous();
  2966. }
  2967. return true;
  2968. }
  2969. return (isset($_user['is_anonymous']) && $_user['is_anonymous'] === true) || $_user === false;
  2970. }
  2971. /**
  2972. * Displays message "You are not allowed here..." and exits the entire script.
  2973. * @param bool $print_headers Whether or not to print headers (default = false -> does not print them)
  2974. * @param string $message
  2975. */
  2976. function api_not_allowed(
  2977. $print_headers = false,
  2978. $message = null
  2979. ) {
  2980. if (api_get_setting('sso_authentication') === 'true') {
  2981. global $osso;
  2982. if ($osso) {
  2983. $osso->logout();
  2984. }
  2985. }
  2986. $home_url = api_get_path(WEB_PATH);
  2987. $user_id = api_get_user_id();
  2988. $course = api_get_course_id();
  2989. global $this_section;
  2990. if (CustomPages::enabled() && !isset($user_id)) {
  2991. if (empty($user_id)) {
  2992. // Why the CustomPages::enabled() need to be to set the request_uri
  2993. $_SESSION['request_uri'] = $_SERVER['REQUEST_URI'];
  2994. }
  2995. CustomPages::display(CustomPages::INDEX_UNLOGGED);
  2996. }
  2997. $origin = api_get_origin();
  2998. $msg = null;
  2999. if (isset($message)) {
  3000. $msg = $message;
  3001. } else {
  3002. $msg = Display::return_message(
  3003. get_lang('NotAllowedClickBack').'
  3004. <script>function goBack(){window.history.back();}</script>',
  3005. 'error',
  3006. false
  3007. );
  3008. $msg .= '<p class="text-center">
  3009. <a onclick="goBack();" class="btn btn-default" href="'.$home_url.'">'.get_lang('GoBack').'</a>
  3010. </p>';
  3011. }
  3012. $msg = Display::div($msg, array('align'=>'center'));
  3013. $show_headers = 0;
  3014. if ($print_headers && $origin != 'learnpath') {
  3015. $show_headers = 1;
  3016. }
  3017. $tpl = new Template(null, $show_headers, $show_headers, false, true, false);
  3018. $tpl->assign('hide_login_link', 1);
  3019. $tpl->assign('content', $msg);
  3020. if (($user_id != 0 && !api_is_anonymous()) &&
  3021. (!isset($course) || $course == -1) &&
  3022. empty($_GET['cidReq'])
  3023. ) {
  3024. // if the access is not authorized and there is some login information
  3025. // but the cidReq is not found, assume we are missing course data and send the user
  3026. // to the user_portal
  3027. $tpl->display_one_col_template();
  3028. exit;
  3029. }
  3030. if (!empty($_SERVER['REQUEST_URI']) &&
  3031. (!empty($_GET['cidReq']) ||
  3032. $this_section == SECTION_MYPROFILE ||
  3033. $this_section == SECTION_PLATFORM_ADMIN
  3034. )
  3035. ) {
  3036. $courseCode = api_get_course_id();
  3037. // Only display form and return to the previous URL if there was a course ID included
  3038. if ($user_id != 0 && !api_is_anonymous()) {
  3039. //if there is a user ID, then the user is not allowed but the session is still there. Say so and exit
  3040. $tpl->assign('content', $msg);
  3041. $tpl->display_one_col_template();
  3042. exit;
  3043. }
  3044. if (!is_null($courseCode)) {
  3045. api_set_firstpage_parameter($courseCode);
  3046. }
  3047. // If the user has no user ID, then his session has expired
  3048. $form = api_get_not_allowed_login_form();
  3049. // see same text in auth/gotocourse.php and main_api.lib.php function api_not_allowed (above)
  3050. $content = Display::return_message(get_lang('NotAllowed'), 'error', false);
  3051. if (!empty($courseCode)) {
  3052. $content .= '<h4>'.get_lang('LoginToGoToThisCourse').'</h4>';
  3053. }
  3054. if (api_is_cas_activated()) {
  3055. $content .= Display::return_message(sprintf(get_lang('YouHaveAnInstitutionalAccount'), api_get_setting("Institution")), '', false);
  3056. $content .= Display::div(
  3057. "<br/><a href='".get_cas_direct_URL(api_get_course_id())."'>".sprintf(get_lang('LoginWithYourAccount'), api_get_setting("Institution"))."</a><br/><br/>",
  3058. array('align' => 'center')
  3059. );
  3060. $content .= Display::return_message(get_lang('YouDontHaveAnInstitutionAccount'));
  3061. $content .= "<p style='text-align:center'><a href='#' onclick='$(this).parent().next().toggle()'>".get_lang('LoginWithExternalAccount')."</a></p>";
  3062. $content .= "<div style='display:none;'>";
  3063. }
  3064. $content .= '<div class="well">';
  3065. $content .= $form->returnForm();
  3066. $content .= '</div>';
  3067. if (api_is_cas_activated()) {
  3068. $content .= "</div>";
  3069. }
  3070. if (!empty($courseCode)) {
  3071. $content .= '<hr/><p style="text-align:center"><a href="'.$home_url.'">'.
  3072. get_lang('ReturnToCourseHomepage').'</a></p>';
  3073. } else {
  3074. $content .= '<hr/><p style="text-align:center"><a href="'.$home_url.'">'.
  3075. get_lang('BackHome').'</a></p>';
  3076. }
  3077. $tpl->setLoginBodyClass();
  3078. $tpl->assign('content', $content);
  3079. $tpl->display_one_col_template();
  3080. exit;
  3081. }
  3082. if ($user_id != 0 && !api_is_anonymous()) {
  3083. $tpl->display_one_col_template();
  3084. exit;
  3085. }
  3086. $msg = null;
  3087. // The session is over and we were not in a course,
  3088. // or we try to get directly to a private course without being logged
  3089. $courseId = api_get_course_int_id();
  3090. if (!empty($courseId)) {
  3091. api_set_firstpage_parameter(api_get_course_id());
  3092. $tpl->setLoginBodyClass();
  3093. // see same text in auth/gotocourse.php and main_api.lib.php function api_not_allowed (bellow)
  3094. $msg = Display::return_message(get_lang('NotAllowed'), 'error', false);
  3095. $msg .= '<h4>'.get_lang('LoginToGoToThisCourse').'</h4>';
  3096. $casEnabled = api_is_cas_activated();
  3097. if ($casEnabled) {
  3098. $msg .= Display::return_message(
  3099. sprintf(get_lang('YouHaveAnInstitutionalAccount'), api_get_setting("Institution")),
  3100. '',
  3101. false
  3102. );
  3103. $msg .= Display::div("<br/><a href='".get_cas_direct_URL(api_get_course_int_id())."'>".getCASLogoHTML()." ".sprintf(get_lang('LoginWithYourAccount'), api_get_setting("Institution"))."</a><br/><br/>", array('align'=>'center'));
  3104. $msg .= Display::return_message(get_lang('YouDontHaveAnInstitutionAccount'));
  3105. $msg .= "<p style='text-align:center'><a href='#' onclick='$(this).parent().next().toggle()'>".get_lang('LoginWithExternalAccount')."</a></p>";
  3106. $msg .= "<div style='display:none;'>";
  3107. }
  3108. $form = api_get_not_allowed_login_form();
  3109. $msg .= '<div class="well">';
  3110. $msg .= $form->returnForm();
  3111. $msg .= '</div>';
  3112. if ($casEnabled) {
  3113. $msg .= "</div>";
  3114. }
  3115. } else {
  3116. // we were not in a course, return to home page
  3117. $msg = Display::return_message(
  3118. get_lang('NotAllowed'),
  3119. 'error',
  3120. false
  3121. );
  3122. $msg .= '<p class="text-center">
  3123. <a class="btn btn-default" href="'.$home_url.'">'.get_lang('BackHome').'</a>
  3124. </p>';
  3125. if (!empty($message)) {
  3126. $msg = $message;
  3127. }
  3128. if (api_is_anonymous()) {
  3129. $form = api_get_not_allowed_login_form();
  3130. $msg .= '<div class="well">';
  3131. $msg .= $form->returnForm();
  3132. $msg .= '</div>';
  3133. }
  3134. }
  3135. $tpl->assign('content', $msg);
  3136. $tpl->display_one_col_template();
  3137. exit;
  3138. }
  3139. /**
  3140. * @return FormValidator
  3141. */
  3142. function api_get_not_allowed_login_form()
  3143. {
  3144. $action = api_get_self().'?'.Security::remove_XSS($_SERVER['QUERY_STRING']);
  3145. $action = str_replace('&amp;', '&', $action);
  3146. Session::write('redirect_after_not_allow_page', $action);
  3147. $action .= '&redirect_after_not_allow_page=1';
  3148. $form = new FormValidator(
  3149. 'formLogin',
  3150. 'post',
  3151. $action,
  3152. null,
  3153. array('class' => 'form-stacked')
  3154. );
  3155. $params = [
  3156. 'placeholder' => get_lang('UserName'),
  3157. 'class' => 'col-md-3'
  3158. ];
  3159. if (api_browser_support('autocapitalize')) {
  3160. $params['autocapitalize'] = 'none';
  3161. }
  3162. $form->addElement(
  3163. 'text',
  3164. 'login',
  3165. null,
  3166. $params
  3167. );
  3168. $form->addElement(
  3169. 'password',
  3170. 'password',
  3171. null,
  3172. array('placeholder' => get_lang('Password'), 'class' => 'col-md-3')
  3173. ); //new
  3174. $form->addButtonNext(get_lang('LoginEnter'), 'submitAuth');
  3175. return $form;
  3176. }
  3177. /**
  3178. * Gets a UNIX timestamp from a database (MySQL) datetime format string
  3179. * @param $last_post_datetime standard output date in a sql query
  3180. * @return integer timestamp
  3181. * @author Toon Van Hoecke <Toon.VanHoecke@UGent.be>
  3182. * @version October 2003
  3183. * @desc convert sql date to unix timestamp
  3184. */
  3185. function convert_sql_date($last_post_datetime)
  3186. {
  3187. list ($last_post_date, $last_post_time) = explode(' ', $last_post_datetime);
  3188. list ($year, $month, $day) = explode('-', $last_post_date);
  3189. list ($hour, $min, $sec) = explode(':', $last_post_time);
  3190. return mktime((int) $hour, (int) $min, (int) $sec, (int) $month, (int) $day, (int) $year);
  3191. }
  3192. /**
  3193. * Gets item visibility from the item_property table
  3194. *
  3195. * Getting the visibility is done by getting the last updated visibility entry,
  3196. * using the largest session ID found if session 0 and another was found (meaning
  3197. * the only one that is actually from the session, in case there are results from
  3198. * session 0 *AND* session n).
  3199. * @param array Course properties array (result of api_get_course_info())
  3200. * @param string Tool (learnpath, document, etc)
  3201. * @param int The item ID in the given tool
  3202. * @param int The session ID (optional)
  3203. * @param string $tool
  3204. * @param integer $user_id
  3205. * @param string $type
  3206. * @return int -1 on error, 0 if invisible, 1 if visible
  3207. */
  3208. function api_get_item_visibility(
  3209. $_course,
  3210. $tool,
  3211. $id,
  3212. $session = 0,
  3213. $user_id = null,
  3214. $type = null,
  3215. $group_id = null
  3216. ) {
  3217. if (!is_array($_course) || count($_course) == 0 || empty($tool) || empty($id)) {
  3218. return -1;
  3219. }
  3220. $tool = Database::escape_string($tool);
  3221. $id = intval($id);
  3222. $session = (int) $session;
  3223. $TABLE_ITEMPROPERTY = Database::get_course_table(TABLE_ITEM_PROPERTY);
  3224. $course_id = intval($_course['real_id']);
  3225. $userCondition = '';
  3226. if (!empty($user_id)) {
  3227. $user_id = intval($user_id);
  3228. $userCondition = " AND to_user_id = $user_id ";
  3229. }
  3230. $typeCondition = '';
  3231. if (!empty($type)) {
  3232. $type = Database::escape_string($type);
  3233. $typeCondition = " AND lastedit_type = '$type' ";
  3234. }
  3235. $groupCondition = '';
  3236. if (!empty($group_id)) {
  3237. $group_id = intval($group_id);
  3238. $groupCondition = " AND to_group_id = '$group_id' ";
  3239. }
  3240. $sql = "SELECT visibility
  3241. FROM $TABLE_ITEMPROPERTY
  3242. WHERE
  3243. c_id = $course_id AND
  3244. tool = '$tool' AND
  3245. ref = $id AND
  3246. (session_id = $session OR session_id = 0 OR session_id IS NULL)
  3247. $userCondition $typeCondition $groupCondition
  3248. ORDER BY session_id DESC, lastedit_date DESC
  3249. LIMIT 1";
  3250. $res = Database::query($sql);
  3251. if ($res === false || Database::num_rows($res) == 0) {
  3252. return -1;
  3253. }
  3254. $row = Database::fetch_array($res);
  3255. return $row['visibility'];
  3256. }
  3257. /**
  3258. * Delete a row in the c_item_property table
  3259. *
  3260. * @param array $courseInfo
  3261. * @param string $tool
  3262. * @param int $itemId
  3263. * @param int $userId
  3264. * @param int $groupId group.iid
  3265. * @param int $sessionId
  3266. * @return false|null
  3267. */
  3268. function api_item_property_delete(
  3269. $courseInfo,
  3270. $tool,
  3271. $itemId,
  3272. $userId,
  3273. $groupId = 0,
  3274. $sessionId = 0
  3275. ) {
  3276. if (empty($courseInfo)) {
  3277. return false;
  3278. }
  3279. $courseId = intval($courseInfo['real_id']);
  3280. if (empty($courseId) || empty($tool) || empty($itemId)) {
  3281. return false;
  3282. }
  3283. $table = Database::get_course_table(TABLE_ITEM_PROPERTY);
  3284. $tool = Database::escape_string($tool);
  3285. $itemId = intval($itemId);
  3286. $userId = intval($userId);
  3287. $groupId = intval($groupId);
  3288. $sessionId = intval($sessionId);
  3289. $groupCondition = " AND to_group_id = $groupId ";
  3290. if (empty($groupId)) {
  3291. $groupCondition = " AND (to_group_id is NULL OR to_group_id = 0) ";
  3292. }
  3293. $userCondition = " AND to_user_id = $userId ";
  3294. if (empty($userId)) {
  3295. $userCondition = " AND (to_user_id is NULL OR to_user_id = 0) ";
  3296. }
  3297. $sessionCondition = api_get_session_condition($sessionId, true, false, 'session_id');
  3298. $sql = "DELETE FROM $table
  3299. WHERE
  3300. c_id = $courseId AND
  3301. tool = '$tool' AND
  3302. ref = $itemId
  3303. $sessionCondition
  3304. $userCondition
  3305. $groupCondition
  3306. ";
  3307. Database::query($sql);
  3308. }
  3309. /**
  3310. * Updates or adds item properties to the Item_propetry table
  3311. * Tool and lastedit_type are language independant strings (langvars->get_lang!)
  3312. *
  3313. * @param array $_course array with course properties
  3314. * @param string $tool tool id, linked to 'rubrique' of the course tool_list (Warning: language sensitive !!)
  3315. * @param int $item_id id of the item itself, linked to key of every tool ('id', ...)
  3316. * @param string $last_edit_type add or update action
  3317. * (1) message to be translated (in trad4all) : e.g. DocumentAdded, DocumentUpdated;
  3318. * (2) "delete"
  3319. * (3) "visible"
  3320. * (4) "invisible"
  3321. * @param int $user_id id of the editing/adding user
  3322. * @param array $groupInfo must include group.iid/group.od
  3323. * @param int $to_user_id id of the intended user (always has priority over $to_group_id !), only relevant for $type (1)
  3324. * @param string $start_visible 0000-00-00 00:00:00 format
  3325. * @param string $end_visible 0000-00-00 00:00:00 format
  3326. * @param int $session_id The session ID, if any, otherwise will default to 0
  3327. * @return boolean False if update fails.
  3328. * @author Toon Van Hoecke <Toon.VanHoecke@UGent.be>, Ghent University
  3329. * @version January 2005
  3330. * @desc update the item_properties table (if entry not exists, insert) of the course
  3331. */
  3332. function api_item_property_update(
  3333. $_course,
  3334. $tool,
  3335. $item_id,
  3336. $last_edit_type,
  3337. $user_id,
  3338. $groupInfo = [],
  3339. $to_user_id = null,
  3340. $start_visible = '',
  3341. $end_visible = '',
  3342. $session_id = 0
  3343. ) {
  3344. if (empty($_course)) {
  3345. return false;
  3346. }
  3347. $course_id = $_course['real_id'];
  3348. if (empty($course_id)) {
  3349. return false;
  3350. }
  3351. $to_group_id = 0;
  3352. if (!empty($groupInfo) && isset($groupInfo['iid'])) {
  3353. $to_group_id = $groupInfo['iid'];
  3354. }
  3355. $em = Database::getManager();
  3356. // Definition of variables.
  3357. $tool = Database::escape_string($tool);
  3358. $item_id = intval($item_id);
  3359. $lastEditTypeNoFilter = $last_edit_type;
  3360. $last_edit_type = Database::escape_string($last_edit_type);
  3361. $user_id = intval($user_id);
  3362. $startVisible = "NULL";
  3363. if (!empty($start_visible)) {
  3364. $start_visible = Database::escape_string($start_visible);
  3365. $startVisible = "'$start_visible'";
  3366. }
  3367. $endVisible = "NULL";
  3368. if (!empty($end_visible)) {
  3369. $end_visible = Database::escape_string($end_visible);
  3370. $endVisible = "'$end_visible'";
  3371. }
  3372. $to_filter = '';
  3373. $time = api_get_utc_datetime();
  3374. if (!empty($session_id)) {
  3375. $session_id = intval($session_id);
  3376. } else {
  3377. $session_id = api_get_session_id();
  3378. }
  3379. // Definition of tables.
  3380. $tableItemProperty = Database::get_course_table(TABLE_ITEM_PROPERTY);
  3381. if ($to_user_id <= 0) {
  3382. $to_user_id = null; // No to_user_id set
  3383. }
  3384. if (!is_null($to_user_id)) {
  3385. // $to_user_id has more priority than $to_group_id
  3386. $to_user_id = intval($to_user_id);
  3387. $to_field = 'to_user_id';
  3388. $to_value = $to_user_id;
  3389. } else {
  3390. // $to_user_id is not set.
  3391. $to_field = 'to_group_id';
  3392. $to_value = $to_group_id;
  3393. }
  3394. $toValueCondition = empty($to_value) ? "NULL" : "'$to_value'";
  3395. // Set filters for $to_user_id and $to_group_id, with priority for $to_user_id
  3396. $condition_session = " AND session_id = $session_id ";
  3397. if (empty($session_id)) {
  3398. $condition_session = " AND (session_id = 0 OR session_id IS NULL) ";
  3399. }
  3400. $filter = " c_id = $course_id AND tool = '$tool' AND ref = $item_id $condition_session ";
  3401. // Check whether $to_user_id and $to_group_id are passed in the function call.
  3402. // If both are not passed (both are null) then it is a message for everybody and $to_group_id should be 0 !
  3403. if (is_null($to_user_id) && is_null($to_group_id)) {
  3404. $to_group_id = 0;
  3405. }
  3406. if (!is_null($to_user_id)) {
  3407. // Set filter to intended user.
  3408. $to_filter = " AND to_user_id = $to_user_id $condition_session";
  3409. } else {
  3410. // Set filter to intended group.
  3411. if (($to_group_id != 0) && $to_group_id == strval(intval($to_group_id))) {
  3412. $to_filter = " AND to_group_id = $to_group_id $condition_session";
  3413. }
  3414. }
  3415. // Adding filter if set.
  3416. $filter .= $to_filter;
  3417. // Update if possible
  3418. $set_type = '';
  3419. switch ($lastEditTypeNoFilter) {
  3420. case 'delete':
  3421. // delete = make item only visible for the platform admin.
  3422. $visibility = '2';
  3423. if (!empty($session_id)) {
  3424. // Check whether session id already exist into item_properties for updating visibility or add it.
  3425. $sql = "SELECT session_id FROM $tableItemProperty
  3426. WHERE
  3427. c_id = $course_id AND
  3428. tool = '$tool' AND
  3429. ref = $item_id AND
  3430. session_id = $session_id";
  3431. $rs = Database::query($sql);
  3432. if (Database::num_rows($rs) > 0) {
  3433. $sql = "UPDATE $tableItemProperty
  3434. SET lastedit_type = '".str_replace('_', '', ucwords($tool))."Deleted',
  3435. lastedit_date = '$time',
  3436. lastedit_user_id = $user_id,
  3437. visibility = $visibility,
  3438. session_id = $session_id $set_type
  3439. WHERE $filter";
  3440. $result = Database::query($sql);
  3441. } else {
  3442. $sql = "INSERT INTO $tableItemProperty (c_id, tool, ref, insert_date, insert_user_id, lastedit_date, lastedit_type, lastedit_user_id, $to_field, visibility, start_visible, end_visible, session_id)
  3443. VALUES ($course_id, '$tool',$item_id, '$time', $user_id, '$time', '$last_edit_type',$user_id, $toValueCondition, $visibility, $startVisible, $endVisible, $session_id)";
  3444. $result = Database::query($sql);
  3445. $id = Database::insert_id();
  3446. if ($id) {
  3447. $sql = "UPDATE $tableItemProperty SET id = iid WHERE iid = $id";
  3448. Database::query($sql);
  3449. }
  3450. }
  3451. } else {
  3452. $sql = "UPDATE $tableItemProperty
  3453. SET
  3454. lastedit_type='".str_replace('_', '', ucwords($tool))."Deleted',
  3455. lastedit_date='$time',
  3456. lastedit_user_id = $user_id,
  3457. visibility = $visibility $set_type
  3458. WHERE $filter";
  3459. $result = Database::query($sql);
  3460. }
  3461. break;
  3462. case 'visible': // Change item to visible.
  3463. $visibility = '1';
  3464. if (!empty($session_id)) {
  3465. // Check whether session id already exist into item_properties for updating visibility or add it.
  3466. $sql = "SELECT session_id FROM $tableItemProperty
  3467. WHERE
  3468. c_id = $course_id AND
  3469. tool = '$tool' AND
  3470. ref = $item_id AND
  3471. session_id = $session_id";
  3472. $rs = Database::query($sql);
  3473. if (Database::num_rows($rs) > 0) {
  3474. $sql = "UPDATE $tableItemProperty
  3475. SET
  3476. lastedit_type='".str_replace('_', '', ucwords($tool))."Visible',
  3477. lastedit_date='$time',
  3478. lastedit_user_id = $user_id,
  3479. visibility = $visibility,
  3480. session_id = $session_id $set_type
  3481. WHERE $filter";
  3482. $result = Database::query($sql);
  3483. } else {
  3484. $sql = "INSERT INTO $tableItemProperty (c_id, tool, ref, insert_date, insert_user_id, lastedit_date, lastedit_type, lastedit_user_id, $to_field, visibility, start_visible, end_visible, session_id)
  3485. VALUES ($course_id, '$tool', $item_id, '$time', $user_id, '$time', '$last_edit_type', $user_id, $toValueCondition, $visibility, $startVisible, $endVisible, $session_id)";
  3486. $result = Database::query($sql);
  3487. $id = Database::insert_id();
  3488. if ($id) {
  3489. $sql = "UPDATE $tableItemProperty SET id = iid WHERE iid = $id";
  3490. Database::query($sql);
  3491. }
  3492. }
  3493. } else {
  3494. $sql = "UPDATE $tableItemProperty
  3495. SET
  3496. lastedit_type='".str_replace('_', '', ucwords($tool))."Visible',
  3497. lastedit_date='$time',
  3498. lastedit_user_id = $user_id,
  3499. visibility = $visibility $set_type
  3500. WHERE $filter";
  3501. $result = Database::query($sql);
  3502. }
  3503. break;
  3504. case 'invisible': // Change item to invisible.
  3505. $visibility = '0';
  3506. if (!empty($session_id)) {
  3507. // Check whether session id already exist into item_properties for updating visibility or add it
  3508. $sql = "SELECT session_id FROM $tableItemProperty
  3509. WHERE
  3510. c_id = $course_id AND
  3511. tool = '$tool' AND
  3512. ref = $item_id AND
  3513. session_id = $session_id";
  3514. $rs = Database::query($sql);
  3515. if (Database::num_rows($rs) > 0) {
  3516. $sql = "UPDATE $tableItemProperty
  3517. SET
  3518. lastedit_type = '".str_replace('_', '', ucwords($tool))."Invisible',
  3519. lastedit_date = '$time',
  3520. lastedit_user_id = $user_id,
  3521. visibility = $visibility,
  3522. session_id = $session_id $set_type
  3523. WHERE $filter";
  3524. $result = Database::query($sql);
  3525. } else {
  3526. $sql = "INSERT INTO $tableItemProperty (c_id, tool, ref, insert_date, insert_user_id, lastedit_date, lastedit_type, lastedit_user_id,$to_field, visibility, start_visible, end_visible, session_id)
  3527. VALUES ($course_id, '$tool', $item_id, '$time', $user_id, '$time', '$last_edit_type', $user_id, $toValueCondition, $visibility, $startVisible, $endVisible, $session_id)";
  3528. $result = Database::query($sql);
  3529. $id = Database::insert_id();
  3530. if ($id) {
  3531. $sql = "UPDATE $tableItemProperty SET id = iid WHERE iid = $id";
  3532. Database::query($sql);
  3533. }
  3534. }
  3535. } else {
  3536. $sql = "UPDATE $tableItemProperty
  3537. SET
  3538. lastedit_type = '".str_replace('_', '', ucwords($tool))."Invisible',
  3539. lastedit_date = '$time',
  3540. lastedit_user_id = $user_id,
  3541. visibility = $visibility $set_type
  3542. WHERE $filter";
  3543. $result = Database::query($sql);
  3544. }
  3545. break;
  3546. default: // The item will be added or updated.
  3547. $set_type = ", lastedit_type = '$last_edit_type' ";
  3548. $visibility = '1';
  3549. //$filter .= $to_filter; already added
  3550. $sql = "UPDATE $tableItemProperty
  3551. SET
  3552. lastedit_date = '$time',
  3553. lastedit_user_id = $user_id $set_type
  3554. WHERE $filter";
  3555. $result = Database::query($sql);
  3556. }
  3557. // Insert if no entries are found (can only happen in case of $last_edit_type switch is 'default').
  3558. if ($result == false || Database::affected_rows($result) == 0) {
  3559. $objCourse = $em->find('ChamiloCoreBundle:Course', intval($course_id));
  3560. $objTime = new DateTime('now', new DateTimeZone('UTC'));
  3561. $objUser = api_get_user_entity($user_id);
  3562. if (empty($objUser)) {
  3563. // Use anonymous
  3564. $user_id = api_get_anonymous_id();
  3565. $objUser = api_get_user_entity($user_id);
  3566. }
  3567. $objGroup = $em->find('ChamiloCourseBundle:CGroupInfo', intval($to_group_id));
  3568. $objToUser = api_get_user_entity($to_user_id);
  3569. $objSession = $em->find('ChamiloCoreBundle:Session', intval($session_id));
  3570. $startVisibleDate = !empty($start_visible) ? new DateTime($start_visible, new DateTimeZone('UTC')) : null;
  3571. $endVisibleDate = !empty($endVisibleDate) ? new DateTime($endVisibleDate, new DateTimeZone('UTC')) : null;
  3572. $cItemProperty = new CItemProperty($objCourse);
  3573. $cItemProperty
  3574. ->setTool($tool)
  3575. ->setRef($item_id)
  3576. ->setInsertDate($objTime)
  3577. ->setInsertUser($objUser)
  3578. ->setLasteditDate($objTime)
  3579. ->setLasteditType($last_edit_type)
  3580. ->setGroup($objGroup)
  3581. ->setToUser($objToUser)
  3582. ->setVisibility($visibility)
  3583. ->setStartVisible($startVisibleDate)
  3584. ->setEndVisible($endVisibleDate)
  3585. ->setSession($objSession);
  3586. $em->persist($cItemProperty);
  3587. $em->flush();
  3588. $id = $cItemProperty->getIid();
  3589. if ($id) {
  3590. $cItemProperty->setId($id);
  3591. $em->merge($cItemProperty);
  3592. $em->flush();
  3593. return false;
  3594. }
  3595. }
  3596. return true;
  3597. }
  3598. /**
  3599. * Gets item property by tool
  3600. * @param string course code
  3601. * @param string tool name, linked to 'rubrique' of the course tool_list (Warning: language sensitive !!)
  3602. * @param int id of the item itself, linked to key of every tool ('id', ...), "*" = all items of the tool
  3603. * @param int $session_id
  3604. * @param string $tool
  3605. * @param string $course_code
  3606. * @return array All fields from c_item_property (all rows found) or empty array
  3607. */
  3608. function api_get_item_property_by_tool($tool, $course_code, $session_id = null)
  3609. {
  3610. $course_info = api_get_course_info($course_code);
  3611. $tool = Database::escape_string($tool);
  3612. // Definition of tables.
  3613. $item_property_table = Database::get_course_table(TABLE_ITEM_PROPERTY);
  3614. $session_id = intval($session_id);
  3615. $session_condition = ' AND session_id = '.$session_id;
  3616. if (empty($session_id)) {
  3617. $session_condition = " AND (session_id = 0 OR session_id IS NULL) ";
  3618. }
  3619. $course_id = $course_info['real_id'];
  3620. $sql = "SELECT * FROM $item_property_table
  3621. WHERE
  3622. c_id = $course_id AND
  3623. tool = '$tool'
  3624. $session_condition ";
  3625. $rs = Database::query($sql);
  3626. $list = [];
  3627. if (Database::num_rows($rs) > 0) {
  3628. while ($row = Database::fetch_array($rs, 'ASSOC')) {
  3629. $list[] = $row;
  3630. }
  3631. }
  3632. return $list;
  3633. }
  3634. /**
  3635. * Gets item property by tool and user
  3636. * @param int $userId
  3637. * @param int $tool
  3638. * @param int $courseId
  3639. * @param int $session_id
  3640. * @return array
  3641. */
  3642. function api_get_item_property_list_by_tool_by_user(
  3643. $userId,
  3644. $tool,
  3645. $courseId,
  3646. $session_id = 0
  3647. ) {
  3648. $userId = intval($userId);
  3649. $tool = Database::escape_string($tool);
  3650. $session_id = intval($session_id);
  3651. $courseId = intval($courseId);
  3652. // Definition of tables.
  3653. $item_property_table = Database::get_course_table(TABLE_ITEM_PROPERTY);
  3654. $session_condition = ' AND session_id = '.$session_id;
  3655. if (empty($session_id)) {
  3656. $session_condition = " AND (session_id = 0 OR session_id IS NULL) ";
  3657. }
  3658. $sql = "SELECT * FROM $item_property_table
  3659. WHERE
  3660. insert_user_id = $userId AND
  3661. c_id = $courseId AND
  3662. tool = '$tool'
  3663. $session_condition ";
  3664. $rs = Database::query($sql);
  3665. $list = [];
  3666. if (Database::num_rows($rs) > 0) {
  3667. while ($row = Database::fetch_array($rs, 'ASSOC')) {
  3668. $list[] = $row;
  3669. }
  3670. }
  3671. return $list;
  3672. }
  3673. /**
  3674. * Gets item property id from tool of a course
  3675. * @param string $course_code course code
  3676. * @param string $tool tool name, linked to 'rubrique' of the course tool_list (Warning: language sensitive !!)
  3677. * @param int $ref id of the item itself, linked to key of every tool ('id', ...), "*" = all items of the tool
  3678. * @param int $sessionId Session ID (optional)
  3679. * @return int
  3680. */
  3681. function api_get_item_property_id($course_code, $tool, $ref, $sessionId = 0)
  3682. {
  3683. $course_info = api_get_course_info($course_code);
  3684. $tool = Database::escape_string($tool);
  3685. $ref = intval($ref);
  3686. // Definition of tables.
  3687. $tableItemProperty = Database::get_course_table(TABLE_ITEM_PROPERTY);
  3688. $course_id = $course_info['real_id'];
  3689. $sessionId = (int) $sessionId;
  3690. $sessionCondition = " AND session_id = $sessionId ";
  3691. if (empty($sessionId)) {
  3692. $sessionCondition = " AND (session_id = 0 OR session_id IS NULL) ";
  3693. }
  3694. $sql = "SELECT id FROM $tableItemProperty
  3695. WHERE
  3696. c_id = $course_id AND
  3697. tool = '$tool' AND
  3698. ref = $ref
  3699. $sessionCondition";
  3700. $rs = Database::query($sql);
  3701. $item_property_id = '';
  3702. if (Database::num_rows($rs) > 0) {
  3703. $row = Database::fetch_array($rs);
  3704. $item_property_id = $row['id'];
  3705. }
  3706. return $item_property_id;
  3707. }
  3708. /**
  3709. * Inserts a record in the track_e_item_property table (No update)
  3710. * @param string $tool
  3711. * @param int $ref
  3712. * @param string $title
  3713. * @param string $content
  3714. * @param int $progress
  3715. * @return bool|int
  3716. */
  3717. function api_track_item_property_update($tool, $ref, $title, $content, $progress)
  3718. {
  3719. $tbl_stats_item_property = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ITEM_PROPERTY);
  3720. $course_id = api_get_course_int_id(); //numeric
  3721. $course_code = api_get_course_id(); //alphanumeric
  3722. $item_property_id = api_get_item_property_id($course_code, $tool, $ref);
  3723. if (!empty($item_property_id)) {
  3724. $sql = "INSERT IGNORE INTO $tbl_stats_item_property SET
  3725. course_id = '$course_id',
  3726. item_property_id = '$item_property_id',
  3727. title = '".Database::escape_string($title)."',
  3728. content = '".Database::escape_string($content)."',
  3729. progress = '".intval($progress)."',
  3730. lastedit_date = '".api_get_utc_datetime()."',
  3731. lastedit_user_id = '".api_get_user_id()."',
  3732. session_id = '".api_get_session_id()."'";
  3733. $result = Database::query($sql);
  3734. $affected_rows = Database::affected_rows($result);
  3735. return $affected_rows;
  3736. }
  3737. return false;
  3738. }
  3739. /**
  3740. * @param string $tool
  3741. * @param int $ref
  3742. * @return array|resource
  3743. */
  3744. function api_get_track_item_property_history($tool, $ref)
  3745. {
  3746. $tbl_stats_item_property = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ITEM_PROPERTY);
  3747. $course_id = api_get_course_int_id(); //numeric
  3748. $course_code = api_get_course_id(); //alphanumeric
  3749. $item_property_id = api_get_item_property_id($course_code, $tool, $ref);
  3750. $sql = "SELECT * FROM $tbl_stats_item_property
  3751. WHERE item_property_id = $item_property_id AND course_id = $course_id
  3752. ORDER BY lastedit_date DESC";
  3753. $result = Database::query($sql);
  3754. if ($result === false or $result === null) {
  3755. $result = [];
  3756. } else {
  3757. $result = Database::store_result($result, 'ASSOC');
  3758. }
  3759. return $result;
  3760. }
  3761. /**
  3762. * Gets item property data from tool of a course id
  3763. * @param int $course_id
  3764. * @param string $tool tool name, linked to 'rubrique' of the course tool_list (Warning: language sensitive !!)
  3765. * @param int $ref id of the item itself, linked to key of every tool ('id', ...), "*" = all items of the tool
  3766. * @param int $session_id
  3767. * @param int $groupId
  3768. *
  3769. * @return array with all fields from c_item_property, empty array if not found or false if course could not be found
  3770. */
  3771. function api_get_item_property_info($course_id, $tool, $ref, $session_id = 0, $groupId = 0)
  3772. {
  3773. $courseInfo = api_get_course_info_by_id($course_id);
  3774. if (empty($courseInfo)) {
  3775. return false;
  3776. }
  3777. $tool = Database::escape_string($tool);
  3778. $ref = intval($ref);
  3779. $course_id = $courseInfo['real_id'];
  3780. $session_id = intval($session_id);
  3781. $sessionCondition = " session_id = $session_id";
  3782. if (empty($session_id)) {
  3783. $sessionCondition = " (session_id = 0 OR session_id IS NULL) ";
  3784. }
  3785. // Definition of tables.
  3786. $table = Database::get_course_table(TABLE_ITEM_PROPERTY);
  3787. $sql = "SELECT * FROM $table
  3788. WHERE
  3789. c_id = $course_id AND
  3790. tool = '$tool' AND
  3791. ref = $ref AND
  3792. $sessionCondition ";
  3793. if (!empty($groupId)) {
  3794. $groupId = intval($groupId);
  3795. $sql .= " AND to_group_id = $groupId ";
  3796. }
  3797. $rs = Database::query($sql);
  3798. $row = [];
  3799. if (Database::num_rows($rs) > 0) {
  3800. $row = Database::fetch_array($rs, 'ASSOC');
  3801. }
  3802. return $row;
  3803. }
  3804. /**
  3805. * Displays a combo box so the user can select his/her preferred language.
  3806. * @param string The desired name= value for the select
  3807. * @param bool Whether we use the JQuery Chozen library or not
  3808. * (in some cases, like the indexing language picker, it can alter the presentation)
  3809. * @return string
  3810. */
  3811. function api_get_languages_combo($name = 'language')
  3812. {
  3813. $ret = '';
  3814. $platformLanguage = api_get_setting('platformLanguage');
  3815. // Retrieve a complete list of all the languages.
  3816. $language_list = api_get_languages();
  3817. if (count($language_list['name']) < 2) {
  3818. return $ret;
  3819. }
  3820. // The the current language of the user so that his/her language occurs as selected in the dropdown menu.
  3821. if (isset($_SESSION['user_language_choice'])) {
  3822. $default = $_SESSION['user_language_choice'];
  3823. } else {
  3824. $default = $platformLanguage;
  3825. }
  3826. $languages = $language_list['name'];
  3827. $folder = $language_list['folder'];
  3828. $ret .= '<select name="'.$name.'" id="language_chosen" class="selectpicker show-tick form-control">';
  3829. foreach ($languages as $key => $value) {
  3830. if ($folder[$key] == $default) {
  3831. $selected = ' selected="selected"';
  3832. } else {
  3833. $selected = '';
  3834. }
  3835. $ret .= sprintf('<option value=%s" %s>%s</option>', $folder[$key], $selected, $value);
  3836. }
  3837. $ret .= '</select>';
  3838. return $ret;
  3839. }
  3840. /**
  3841. * Displays a form (drop down menu) so the user can select his/her preferred language.
  3842. * The form works with or without javascript
  3843. * @param boolean Hide form if only one language available (defaults to false = show the box anyway)
  3844. * @param bool $showAsButton
  3845. * @return null|string Display the box directly
  3846. */
  3847. function api_display_language_form($hide_if_no_choice = false, $showAsButton = false)
  3848. {
  3849. // Retrieve a complete list of all the languages.
  3850. $language_list = api_get_languages();
  3851. if (count($language_list['name']) <= 1 && $hide_if_no_choice) {
  3852. return; //don't show any form
  3853. }
  3854. // The the current language of the user so that his/her language occurs as selected in the dropdown menu.
  3855. if (isset($_SESSION['user_language_choice'])) {
  3856. $user_selected_language = $_SESSION['user_language_choice'];
  3857. }
  3858. if (empty($user_selected_language)) {
  3859. $user_selected_language = api_get_setting('platformLanguage');
  3860. }
  3861. $currentLanguageId = api_get_language_id($user_selected_language);
  3862. $currentLanguageInfo = api_get_language_info($currentLanguageId);
  3863. $countryCode = languageToCountryIsoCode($currentLanguageInfo['isocode']);
  3864. $url = api_get_self();
  3865. if ($showAsButton) {
  3866. $html = '<div class="btn-group">
  3867. <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown">
  3868. <span class="flag-icon flag-icon-'.$countryCode.'"></span>
  3869. '.$currentLanguageInfo['original_name'].'
  3870. <span class="caret">
  3871. </span>
  3872. </button>';
  3873. } else {
  3874. $html = '
  3875. <a href="'.$url.'" class="dropdown-toggle" data-toggle="dropdown" role="button">
  3876. <span class="flag-icon flag-icon-'.$countryCode.'"></span>
  3877. '.$currentLanguageInfo['original_name'].'
  3878. <span class="caret"></span>
  3879. </a>
  3880. ';
  3881. }
  3882. $html .= '<ul class="dropdown-menu" role="menu">';
  3883. foreach ($language_list['all'] as $key => $data) {
  3884. $urlLink = $url.'?language='.$data['english_name'];
  3885. $html .= '<li><a href="'.$urlLink.'"><span class="flag-icon flag-icon-'.languageToCountryIsoCode($data['isocode']).'"></span> '.$data['original_name'].'</a></li>';
  3886. }
  3887. $html .= '</ul>';
  3888. if ($showAsButton) {
  3889. $html .= '</div>';
  3890. }
  3891. return $html;
  3892. }
  3893. /**
  3894. * @param string $languageIsoCode
  3895. * @return string
  3896. */
  3897. function languageToCountryIsoCode($languageIsoCode)
  3898. {
  3899. // @todo save in DB
  3900. switch ($languageIsoCode) {
  3901. case 'ko':
  3902. $country = 'kr';
  3903. break;
  3904. case 'ja':
  3905. $country = 'jp';
  3906. break;
  3907. case 'ca':
  3908. $country = 'es';
  3909. break;
  3910. case 'gl':
  3911. $country = 'es';
  3912. break;
  3913. case 'ka':
  3914. $country = 'ge';
  3915. break;
  3916. case 'sl':
  3917. $country = 'si';
  3918. break;
  3919. case 'eu':
  3920. $country = 'es';
  3921. break;
  3922. case 'cs':
  3923. $country = 'cz';
  3924. break;
  3925. case 'el':
  3926. $country = 'ae';
  3927. break;
  3928. case 'ar':
  3929. $country = 'ae';
  3930. break;
  3931. case 'en':
  3932. $country = 'gb';
  3933. break;
  3934. case 'he':
  3935. $country = 'il';
  3936. break;
  3937. case 'uk':
  3938. $country = 'ua'; //Ukraine
  3939. break;
  3940. case 'da':
  3941. $country = 'dk';
  3942. break;
  3943. case 'pt-BR':
  3944. $country = 'br';
  3945. break;
  3946. case 'qu':
  3947. $country = 'pe';
  3948. break;
  3949. case 'sv':
  3950. $country = 'se';
  3951. break;
  3952. case 'zh-TW':
  3953. case 'zh':
  3954. $country = 'cn';
  3955. break;
  3956. default:
  3957. $country = $languageIsoCode;
  3958. break;
  3959. }
  3960. $country = strtolower($country);
  3961. return $country;
  3962. }
  3963. /**
  3964. * Returns a list of all the languages that are made available by the admin.
  3965. * @return array An array with all languages. Structure of the array is
  3966. * array['name'] = An array with the name of every language
  3967. * array['folder'] = An array with the corresponding names of the language-folders in the filesystem
  3968. */
  3969. function api_get_languages()
  3970. {
  3971. $tbl_language = Database::get_main_table(TABLE_MAIN_LANGUAGE);
  3972. $sql = "SELECT * FROM $tbl_language WHERE available='1'
  3973. ORDER BY original_name ASC";
  3974. $result = Database::query($sql);
  3975. $language_list = [];
  3976. while ($row = Database::fetch_array($result)) {
  3977. $language_list['name'][] = $row['original_name'];
  3978. $language_list['folder'][] = $row['dokeos_folder'];
  3979. $language_list['all'][] = $row;
  3980. }
  3981. return $language_list;
  3982. }
  3983. /**
  3984. * Returns a list of all the languages that are made available by the admin.
  3985. * @return array
  3986. */
  3987. function api_get_languages_to_array()
  3988. {
  3989. $tbl_language = Database::get_main_table(TABLE_MAIN_LANGUAGE);
  3990. $sql = "SELECT * FROM $tbl_language WHERE available='1' ORDER BY original_name ASC";
  3991. $result = Database::query($sql);
  3992. $languages = [];
  3993. while ($row = Database::fetch_array($result)) {
  3994. $languages[$row['dokeos_folder']] = $row['original_name'];
  3995. }
  3996. return $languages;
  3997. }
  3998. /**
  3999. * Returns the id (the database id) of a language
  4000. * @param string language name (the corresponding name of the language-folder in the filesystem)
  4001. * @return int id of the language
  4002. */
  4003. function api_get_language_id($language)
  4004. {
  4005. $tbl_language = Database::get_main_table(TABLE_MAIN_LANGUAGE);
  4006. if (empty($language)) {
  4007. return null;
  4008. }
  4009. $language = Database::escape_string($language);
  4010. $sql = "SELECT id FROM $tbl_language
  4011. WHERE dokeos_folder = '$language' LIMIT 1";
  4012. $result = Database::query($sql);
  4013. $row = Database::fetch_array($result);
  4014. return $row['id'];
  4015. }
  4016. /**
  4017. * Gets language of the requested type for the current user. Types are :
  4018. * user_profil_lang : profile language of current user
  4019. * user_select_lang : language selected by user at login
  4020. * course_lang : language of the current course
  4021. * platform_lang : default platform language
  4022. * @param string $lang_type
  4023. * @return string
  4024. **/
  4025. function api_get_language_from_type($lang_type)
  4026. {
  4027. $return = false;
  4028. switch ($lang_type) {
  4029. case 'platform_lang':
  4030. $temp_lang = api_get_setting('platformLanguage');
  4031. if (!empty($temp_lang)) {
  4032. $return = $temp_lang;
  4033. }
  4034. break;
  4035. case 'user_profil_lang':
  4036. $_user = api_get_user_info();
  4037. if (isset($_user['language']) && !empty($_user['language'])) {
  4038. $return = $_user['language'];
  4039. }
  4040. break;
  4041. case 'user_selected_lang':
  4042. if (isset($_SESSION['user_language_choice']) && !empty($_SESSION['user_language_choice'])) {
  4043. $return = $_SESSION['user_language_choice'];
  4044. }
  4045. break;
  4046. case 'course_lang':
  4047. global $_course;
  4048. $cidReq = null;
  4049. if (empty($_course)) {
  4050. // Code modified because the local.inc.php file it's declarated after this work
  4051. // causing the function api_get_course_info() returns a null value
  4052. $cidReq = isset($_GET["cidReq"]) ? Database::escape_string($_GET["cidReq"]) : null;
  4053. $cDir = (!empty($_GET['cDir']) ? $_GET['cDir'] : null);
  4054. if (empty($cidReq) && !empty($cDir)) {
  4055. $c = CourseManager::getCourseCodeFromDirectory($cDir);
  4056. if ($c) {
  4057. $cidReq = $c;
  4058. }
  4059. }
  4060. }
  4061. $_course = api_get_course_info($cidReq);
  4062. if (isset($_course['language']) && !empty($_course['language'])) {
  4063. $return = $_course['language'];
  4064. $showCourseInUserLanguage = api_get_course_setting('show_course_in_user_language');
  4065. if ($showCourseInUserLanguage == 1) {
  4066. $userInfo = api_get_user_info();
  4067. if (isset($userInfo['language'])) {
  4068. $return = $userInfo['language'];
  4069. }
  4070. }
  4071. }
  4072. break;
  4073. default:
  4074. $return = false;
  4075. break;
  4076. }
  4077. return $return;
  4078. }
  4079. /**
  4080. * Get the language information by its id
  4081. * @param int $languageId
  4082. * @return array
  4083. */
  4084. function api_get_language_info($languageId)
  4085. {
  4086. $language = Database::getManager()
  4087. ->find('ChamiloCoreBundle:Language', intval($languageId));
  4088. if (!$language) {
  4089. return [];
  4090. }
  4091. return [
  4092. 'id' => $language->getId(),
  4093. 'original_name' => $language->getOriginalName(),
  4094. 'english_name' => $language->getEnglishName(),
  4095. 'isocode' => $language->getIsocode(),
  4096. 'dokeos_folder' => $language->getDokeosFolder(),
  4097. 'available' => $language->getAvailable(),
  4098. 'parent_id' => $language->getParent() ? $language->getParent()->getId() : null
  4099. ];
  4100. }
  4101. /**
  4102. * Returns the name of the visual (CSS) theme to be applied on the current page.
  4103. * The returned name depends on the platform, course or user -wide settings.
  4104. * @return string The visual theme's name, it is the name of a folder inside web/css/themes
  4105. */
  4106. function api_get_visual_theme()
  4107. {
  4108. static $visual_theme;
  4109. if (!isset($visual_theme)) {
  4110. // Get style directly from DB
  4111. $styleFromDatabase = api_get_settings_params_simple(
  4112. [
  4113. 'variable = ? AND access_url = ?' => [
  4114. 'stylesheets',
  4115. api_get_current_access_url_id(),
  4116. ],
  4117. ]
  4118. );
  4119. if ($styleFromDatabase) {
  4120. $platform_theme = $styleFromDatabase['selected_value'];
  4121. } else {
  4122. $platform_theme = api_get_setting('stylesheets');
  4123. }
  4124. // Platform's theme.
  4125. $visual_theme = $platform_theme;
  4126. if (api_get_setting('user_selected_theme') == 'true') {
  4127. $user_info = api_get_user_info();
  4128. if (isset($user_info['theme'])) {
  4129. $user_theme = $user_info['theme'];
  4130. if (!empty($user_theme)) {
  4131. $visual_theme = $user_theme;
  4132. // User's theme.
  4133. }
  4134. }
  4135. }
  4136. $course_id = api_get_course_id();
  4137. if (!empty($course_id) && $course_id != -1) {
  4138. if (api_get_setting('allow_course_theme') == 'true') {
  4139. $course_theme = api_get_course_setting('course_theme');
  4140. if (!empty($course_theme) && $course_theme != -1) {
  4141. if (!empty($course_theme)) {
  4142. // Course's theme.
  4143. $visual_theme = $course_theme;
  4144. }
  4145. }
  4146. $allow_lp_theme = api_get_course_setting('allow_learning_path_theme');
  4147. if ($allow_lp_theme == 1) {
  4148. global $lp_theme_css, $lp_theme_config;
  4149. // These variables come from the file lp_controller.php.
  4150. if (!$lp_theme_config) {
  4151. if (!empty($lp_theme_css)) {
  4152. // LP's theme.
  4153. $visual_theme = $lp_theme_css;
  4154. }
  4155. }
  4156. }
  4157. }
  4158. }
  4159. if (empty($visual_theme)) {
  4160. $visual_theme = 'chamilo';
  4161. }
  4162. global $lp_theme_log;
  4163. if ($lp_theme_log) {
  4164. $visual_theme = $platform_theme;
  4165. }
  4166. }
  4167. return $visual_theme;
  4168. }
  4169. /**
  4170. * Returns a list of CSS themes currently available in the CSS folder
  4171. * The folder must have a default.css file
  4172. * @param bool $getOnlyThemeFromVirtualInstance Used by the vchamilo plugin
  4173. * @return array List of themes directories from the css folder
  4174. * Note: Directory names (names of themes) in the file system should contain ASCII-characters only.
  4175. */
  4176. function api_get_themes($getOnlyThemeFromVirtualInstance = false)
  4177. {
  4178. // This configuration value is set by the vchamilo plugin
  4179. $virtualTheme = api_get_configuration_value('virtual_css_theme_folder');
  4180. $readCssFolder = function($dir) use ($virtualTheme) {
  4181. $finder = new Finder();
  4182. $themes = $finder->directories()->in($dir)->depth(0)->sortByName();
  4183. $list = [];
  4184. /** @var Symfony\Component\Finder\SplFileInfo $theme */
  4185. foreach ($themes as $theme) {
  4186. $folder = $theme->getFilename();
  4187. // A theme folder is consider if there's a default.css file
  4188. if (!file_exists($theme->getPathname().'/default.css')) {
  4189. continue;
  4190. }
  4191. $name = ucwords(str_replace('_', ' ', $folder));
  4192. if ($folder == $virtualTheme) {
  4193. continue;
  4194. }
  4195. $list[$folder] = $name;
  4196. }
  4197. return $list;
  4198. };
  4199. $dir = api_get_path(SYS_CSS_PATH).'themes/';
  4200. $list = $readCssFolder($dir);
  4201. if (!empty($virtualTheme)) {
  4202. $newList = $readCssFolder($dir.'/'.$virtualTheme);
  4203. if ($getOnlyThemeFromVirtualInstance) {
  4204. return $newList;
  4205. }
  4206. $list = $list + $newList;
  4207. asort($list);
  4208. }
  4209. return $list;
  4210. }
  4211. /**
  4212. * Find the largest sort value in a given user_course_category
  4213. * This function is used when we are moving a course to a different category
  4214. * and also when a user subscribes to courses (the new course is added at the end of the main category
  4215. * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
  4216. * @param int $user_course_category the id of the user_course_category
  4217. * @param integer $user_id
  4218. * @return int the value of the highest sort of the user_course_category
  4219. */
  4220. function api_max_sort_value($user_course_category, $user_id)
  4221. {
  4222. $tbl_course_user = Database::get_main_table(TABLE_MAIN_COURSE_USER);
  4223. $sql = "SELECT max(sort) as max_sort FROM $tbl_course_user
  4224. WHERE
  4225. user_id='".intval($user_id)."' AND
  4226. relation_type<>".COURSE_RELATION_TYPE_RRHH." AND
  4227. user_course_cat='".intval($user_course_category)."'";
  4228. $result_max = Database::query($sql);
  4229. if (Database::num_rows($result_max) == 1) {
  4230. $row_max = Database::fetch_array($result_max);
  4231. return $row_max['max_sort'];
  4232. }
  4233. return 0;
  4234. }
  4235. /**
  4236. * Transforms a number of seconds in hh:mm:ss format
  4237. * @author Julian Prud'homme
  4238. * @param integer the number of seconds
  4239. * @return string the formated time
  4240. */
  4241. function api_time_to_hms($seconds)
  4242. {
  4243. // $seconds = -1 means that we have wrong data in the db.
  4244. if ($seconds == -1) {
  4245. return
  4246. get_lang('Unknown').
  4247. Display::return_icon(
  4248. 'info2.gif',
  4249. get_lang('WrongDatasForTimeSpentOnThePlatform'),
  4250. array('align' => 'absmiddle', 'hspace' => '3px')
  4251. );
  4252. }
  4253. // How many hours ?
  4254. $hours = floor($seconds / 3600);
  4255. // How many minutes ?
  4256. $min = floor(($seconds - ($hours * 3600)) / 60);
  4257. // How many seconds
  4258. $sec = floor($seconds - ($hours * 3600) - ($min * 60));
  4259. if ($sec < 10) {
  4260. $sec = "0$sec";
  4261. }
  4262. if ($min < 10) {
  4263. $min = "0$min";
  4264. }
  4265. return "$hours:$min:$sec";
  4266. }
  4267. /* FILE SYSTEM RELATED FUNCTIONS */
  4268. /**
  4269. * Returns the permissions to be assigned to every newly created directory by the web-server.
  4270. * The return value is based on the platform administrator's setting
  4271. * "Administration > Configuration settings > Security > Permissions for new directories".
  4272. * @return int Returns the permissions in the format "Owner-Group-Others, Read-Write-Execute", as an integer value.
  4273. */
  4274. function api_get_permissions_for_new_directories()
  4275. {
  4276. static $permissions;
  4277. if (!isset($permissions)) {
  4278. $permissions = trim(api_get_setting('permissions_for_new_directories'));
  4279. // The default value 0777 is according to that in the platform administration panel after fresh system installation.
  4280. $permissions = octdec(!empty($permissions) ? $permissions : '0777');
  4281. }
  4282. return $permissions;
  4283. }
  4284. /**
  4285. * Returns the permissions to be assigned to every newly created directory by the web-server.
  4286. * The return value is based on the platform administrator's setting
  4287. * "Administration > Configuration settings > Security > Permissions for new files".
  4288. * @return int Returns the permissions in the format
  4289. * "Owner-Group-Others, Read-Write-Execute", as an integer value.
  4290. */
  4291. function api_get_permissions_for_new_files()
  4292. {
  4293. static $permissions;
  4294. if (!isset($permissions)) {
  4295. $permissions = trim(api_get_setting('permissions_for_new_files'));
  4296. // The default value 0666 is according to that in the platform
  4297. // administration panel after fresh system installation.
  4298. $permissions = octdec(!empty($permissions) ? $permissions : '0666');
  4299. }
  4300. return $permissions;
  4301. }
  4302. /**
  4303. * Deletes a file, or a folder and its contents
  4304. *
  4305. * @author Aidan Lister <aidan@php.net>
  4306. * @version 1.0.3
  4307. * @param string $dirname Directory to delete
  4308. * @param bool Deletes only the content or not
  4309. * @param bool $strict if one folder/file fails stop the loop
  4310. * @return bool Returns TRUE on success, FALSE on failure
  4311. * @link http://aidanlister.com/2004/04/recursively-deleting-a-folder-in-php/
  4312. * @author Yannick Warnier, adaptation for the Chamilo LMS, April, 2008
  4313. * @author Ivan Tcholakov, a sanity check about Directory class creation has been added, September, 2009
  4314. */
  4315. function rmdirr($dirname, $delete_only_content_in_folder = false, $strict = false)
  4316. {
  4317. $res = true;
  4318. // A sanity check.
  4319. if (!file_exists($dirname)) {
  4320. return false;
  4321. }
  4322. $php_errormsg = '';
  4323. // Simple delete for a file.
  4324. if (is_file($dirname) || is_link($dirname)) {
  4325. $res = unlink($dirname);
  4326. if ($res === false) {
  4327. error_log(__FILE__.' line '.__LINE__.': '.((bool) ini_get('track_errors') ? $php_errormsg : 'Error not recorded because track_errors is off in your php.ini'), 0);
  4328. }
  4329. return $res;
  4330. }
  4331. // Loop through the folder.
  4332. $dir = dir($dirname);
  4333. // A sanity check.
  4334. $is_object_dir = is_object($dir);
  4335. if ($is_object_dir) {
  4336. while (false !== $entry = $dir->read()) {
  4337. // Skip pointers.
  4338. if ($entry == '.' || $entry == '..') {
  4339. continue;
  4340. }
  4341. // Recurse.
  4342. if ($strict) {
  4343. $result = rmdirr("$dirname/$entry");
  4344. if ($result == false) {
  4345. $res = false;
  4346. break;
  4347. }
  4348. } else {
  4349. rmdirr("$dirname/$entry");
  4350. }
  4351. }
  4352. }
  4353. // Clean up.
  4354. if ($is_object_dir) {
  4355. $dir->close();
  4356. }
  4357. if ($delete_only_content_in_folder == false) {
  4358. $res = rmdir($dirname);
  4359. if ($res === false) {
  4360. error_log(__FILE__.' line '.__LINE__.': '.((bool) ini_get('track_errors') ? $php_errormsg : 'error not recorded because track_errors is off in your php.ini'), 0);
  4361. }
  4362. }
  4363. return $res;
  4364. }
  4365. // TODO: This function is to be simplified. File access modes to be implemented.
  4366. /**
  4367. * function adapted from a php.net comment
  4368. * copy recursively a folder
  4369. * @param the source folder
  4370. * @param the dest folder
  4371. * @param an array of excluded file_name (without extension)
  4372. * @param copied_files the returned array of copied files
  4373. * @param string $source
  4374. * @param string $dest
  4375. */
  4376. function copyr($source, $dest, $exclude = [], $copied_files = [])
  4377. {
  4378. if (empty($dest)) { return false; }
  4379. // Simple copy for a file
  4380. if (is_file($source)) {
  4381. $path_info = pathinfo($source);
  4382. if (!in_array($path_info['filename'], $exclude)) {
  4383. copy($source, $dest);
  4384. }
  4385. return true;
  4386. } elseif (!is_dir($source)) {
  4387. //then source is not a dir nor a file, return
  4388. return false;
  4389. }
  4390. // Make destination directory.
  4391. if (!is_dir($dest)) {
  4392. mkdir($dest, api_get_permissions_for_new_directories());
  4393. }
  4394. // Loop through the folder.
  4395. $dir = dir($source);
  4396. while (false !== $entry = $dir->read()) {
  4397. // Skip pointers
  4398. if ($entry == '.' || $entry == '..') {
  4399. continue;
  4400. }
  4401. // Deep copy directories.
  4402. if ($dest !== "$source/$entry") {
  4403. $files = copyr("$source/$entry", "$dest/$entry", $exclude, $copied_files);
  4404. }
  4405. }
  4406. // Clean up.
  4407. $dir->close();
  4408. return true;
  4409. }
  4410. // TODO: Using DIRECTORY_SEPARATOR is not recommended, this is an obsolete approach. Documentation header to be added here.
  4411. /**
  4412. * @param string $pathname
  4413. * @param string $base_path_document
  4414. * @param integer $session_id
  4415. */
  4416. function copy_folder_course_session(
  4417. $pathname,
  4418. $base_path_document,
  4419. $session_id,
  4420. $course_info,
  4421. $document,
  4422. $source_course_id
  4423. ) {
  4424. $table = Database::get_course_table(TABLE_DOCUMENT);
  4425. $session_id = intval($session_id);
  4426. $source_course_id = intval($source_course_id);
  4427. // Check whether directory already exists.
  4428. if (is_dir($pathname) || empty($pathname)) {
  4429. return true;
  4430. }
  4431. // Ensure that a file with the same name does not already exist.
  4432. if (is_file($pathname)) {
  4433. trigger_error('copy_folder_course_session(): File exists', E_USER_WARNING);
  4434. return false;
  4435. }
  4436. $course_id = $course_info['real_id'];
  4437. $folders = explode(DIRECTORY_SEPARATOR, str_replace($base_path_document.DIRECTORY_SEPARATOR, '', $pathname));
  4438. $new_pathname = $base_path_document;
  4439. $path = '';
  4440. foreach ($folders as $folder) {
  4441. $new_pathname .= DIRECTORY_SEPARATOR.$folder;
  4442. $path .= DIRECTORY_SEPARATOR.$folder;
  4443. if (!file_exists($new_pathname)) {
  4444. $path = Database::escape_string($path);
  4445. $sql = "SELECT * FROM $table
  4446. WHERE
  4447. c_id = $source_course_id AND
  4448. path = '$path' AND
  4449. filetype = 'folder' AND
  4450. session_id = '$session_id'";
  4451. $rs1 = Database::query($sql);
  4452. $num_rows = Database::num_rows($rs1);
  4453. if ($num_rows == 0) {
  4454. mkdir($new_pathname, api_get_permissions_for_new_directories());
  4455. // Insert new folder with destination session_id.
  4456. $params = [
  4457. 'c_id' => $course_id,
  4458. 'path' => $path,
  4459. 'comment' => $document->comment,
  4460. 'title' => basename($new_pathname),
  4461. 'filetype' => 'folder',
  4462. 'size' => '0',
  4463. 'session_id' => $session_id
  4464. ];
  4465. $document_id = Database::insert($table, $params);
  4466. if ($document_id) {
  4467. $sql = "UPDATE $table SET id = iid WHERE iid = $document_id";
  4468. Database::query($sql);
  4469. api_item_property_update(
  4470. $course_info,
  4471. TOOL_DOCUMENT,
  4472. $document_id,
  4473. 'FolderCreated',
  4474. api_get_user_id(),
  4475. 0,
  4476. 0,
  4477. null,
  4478. null,
  4479. $session_id
  4480. );
  4481. }
  4482. }
  4483. }
  4484. } // en foreach
  4485. }
  4486. // TODO: chmodr() is a better name. Some corrections are needed. Documentation header to be added here.
  4487. /**
  4488. * @param string $path
  4489. */
  4490. function api_chmod_R($path, $filemode)
  4491. {
  4492. if (!is_dir($path)) {
  4493. return chmod($path, $filemode);
  4494. }
  4495. $handler = opendir($path);
  4496. while ($file = readdir($handler)) {
  4497. if ($file != '.' && $file != '..') {
  4498. $fullpath = "$path/$file";
  4499. if (!is_dir($fullpath)) {
  4500. if (!chmod($fullpath, $filemode)) {
  4501. return false;
  4502. }
  4503. } else {
  4504. if (!api_chmod_R($fullpath, $filemode)) {
  4505. return false;
  4506. }
  4507. }
  4508. }
  4509. }
  4510. closedir($handler);
  4511. return chmod($path, $filemode);
  4512. }
  4513. // TODO: Where the following function has been copy/pased from? There is no information about author and license. Style, coding conventions...
  4514. /**
  4515. * Parse info file format. (e.g: file.info)
  4516. *
  4517. * Files should use an ini-like format to specify values.
  4518. * White-space generally doesn't matter, except inside values.
  4519. * e.g.
  4520. *
  4521. * @verbatim
  4522. * key = value
  4523. * key = "value"
  4524. * key = 'value'
  4525. * key = "multi-line
  4526. *
  4527. * value"
  4528. * key = 'multi-line
  4529. *
  4530. * value'
  4531. * key
  4532. * =
  4533. * 'value'
  4534. * @endverbatim
  4535. *
  4536. * Arrays are created using a GET-like syntax:
  4537. *
  4538. * @verbatim
  4539. * key[] = "numeric array"
  4540. * key[index] = "associative array"
  4541. * key[index][] = "nested numeric array"
  4542. * key[index][index] = "nested associative array"
  4543. * @endverbatim
  4544. *
  4545. * PHP constants are substituted in, but only when used as the entire value:
  4546. *
  4547. * Comments should start with a semi-colon at the beginning of a line.
  4548. *
  4549. * This function is NOT for placing arbitrary module-specific settings. Use
  4550. * variable_get() and variable_set() for that.
  4551. *
  4552. * Information stored in the module.info file:
  4553. * - name: The real name of the module for display purposes.
  4554. * - description: A brief description of the module.
  4555. * - dependencies: An array of shortnames of other modules this module depends on.
  4556. * - package: The name of the package of modules this module belongs to.
  4557. *
  4558. * Example of .info file:
  4559. * <code>
  4560. * @verbatim
  4561. * name = Forum
  4562. * description = Enables threaded discussions about general topics.
  4563. * dependencies[] = taxonomy
  4564. * dependencies[] = comment
  4565. * package = Core - optional
  4566. * version = VERSION
  4567. * @endverbatim
  4568. * </code>
  4569. * @param string $filename
  4570. * The file we are parsing. Accepts file with relative or absolute path.
  4571. * @return
  4572. * The info array.
  4573. */
  4574. function api_parse_info_file($filename) {
  4575. $info = [];
  4576. if (!file_exists($filename)) {
  4577. return $info;
  4578. }
  4579. $data = file_get_contents($filename);
  4580. if (preg_match_all('
  4581. @^\s* # Start at the beginning of a line, ignoring leading whitespace
  4582. ((?:
  4583. [^=;\[\]]| # Key names cannot contain equal signs, semi-colons or square brackets,
  4584. \[[^\[\]]*\] # unless they are balanced and not nested
  4585. )+?)
  4586. \s*=\s* # Key/value pairs are separated by equal signs (ignoring white-space)
  4587. (?:
  4588. ("(?:[^"]|(?<=\\\\)")*")| # Double-quoted string, which may contain slash-escaped quotes/slashes
  4589. (\'(?:[^\']|(?<=\\\\)\')*\')| # Single-quoted string, which may contain slash-escaped quotes/slashes
  4590. ([^\r\n]*?) # Non-quoted string
  4591. )\s*$ # Stop at the next end of a line, ignoring trailing whitespace
  4592. @msx', $data, $matches, PREG_SET_ORDER)) {
  4593. $key = $value1 = $value2 = $value3 = '';
  4594. foreach ($matches as $match) {
  4595. // Fetch the key and value string.
  4596. $i = 0;
  4597. foreach (array('key', 'value1', 'value2', 'value3') as $var) {
  4598. $$var = isset($match[++$i]) ? $match[$i] : '';
  4599. }
  4600. $value = stripslashes(substr($value1, 1, -1)).stripslashes(substr($value2, 1, -1)).$value3;
  4601. // Parse array syntax.
  4602. $keys = preg_split('/\]?\[/', rtrim($key, ']'));
  4603. $last = array_pop($keys);
  4604. $parent = &$info;
  4605. // Create nested arrays.
  4606. foreach ($keys as $key) {
  4607. if ($key == '') {
  4608. $key = count($parent);
  4609. }
  4610. if (!isset($parent[$key]) || !is_array($parent[$key])) {
  4611. $parent[$key] = [];
  4612. }
  4613. $parent = &$parent[$key];
  4614. }
  4615. // Handle PHP constants.
  4616. if (defined($value)) {
  4617. $value = constant($value);
  4618. }
  4619. // Insert actual value.
  4620. if ($last == '') {
  4621. $last = count($parent);
  4622. }
  4623. $parent[$last] = $value;
  4624. }
  4625. }
  4626. return $info;
  4627. }
  4628. /**
  4629. * Gets Chamilo version from the configuration files
  4630. * @return string A string of type "1.8.4", or an empty string if the version could not be found
  4631. */
  4632. function api_get_version()
  4633. {
  4634. return (string) api_get_configuration_value('system_version');
  4635. }
  4636. /**
  4637. * Gets the software name (the name/brand of the Chamilo-based customized system)
  4638. * @return string
  4639. */
  4640. function api_get_software_name()
  4641. {
  4642. $name = api_get_configuration_value('software_name');
  4643. if (!empty($name)) {
  4644. return $name;
  4645. } else {
  4646. return 'Chamilo';
  4647. }
  4648. }
  4649. /**
  4650. * Checks whether status given in parameter exists in the platform
  4651. * @param mixed the status (can be either int either string)
  4652. * @return boolean if the status exists, else returns false
  4653. */
  4654. function api_status_exists($status_asked)
  4655. {
  4656. global $_status_list;
  4657. return in_array($status_asked, $_status_list) ? true : isset($_status_list[$status_asked]);
  4658. }
  4659. /**
  4660. * Checks whether status given in parameter exists in the platform. The function
  4661. * returns the status ID or false if it does not exist, but given the fact there
  4662. * is no "0" status, the return value can be checked against
  4663. * if(api_status_key()) to know if it exists.
  4664. * @param mixed The status (can be either int or string)
  4665. * @return mixed Status ID if exists, false otherwise
  4666. */
  4667. function api_status_key($status)
  4668. {
  4669. global $_status_list;
  4670. return isset($_status_list[$status]) ? $status : array_search($status, $_status_list);
  4671. }
  4672. /**
  4673. * Gets the status langvars list
  4674. * @return string[] the list of status with their translations
  4675. */
  4676. function api_get_status_langvars()
  4677. {
  4678. return array(
  4679. COURSEMANAGER => get_lang('Teacher', ''),
  4680. SESSIONADMIN => get_lang('SessionsAdmin', ''),
  4681. DRH => get_lang('Drh', ''),
  4682. STUDENT => get_lang('Student', ''),
  4683. ANONYMOUS => get_lang('Anonymous', ''),
  4684. STUDENT_BOSS => get_lang('RoleStudentBoss', ''),
  4685. INVITEE => get_lang('Invited'),
  4686. );
  4687. }
  4688. /**
  4689. * The function that retrieves all the possible settings for a certain config setting
  4690. * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
  4691. */
  4692. function api_get_settings_options($var)
  4693. {
  4694. $table_settings_options = Database::get_main_table(TABLE_MAIN_SETTINGS_OPTIONS);
  4695. $var = Database::escape_string($var);
  4696. $sql = "SELECT * FROM $table_settings_options
  4697. WHERE variable = '$var'
  4698. ORDER BY id";
  4699. $result = Database::query($sql);
  4700. $settings_options_array = [];
  4701. while ($row = Database::fetch_array($result, 'ASSOC')) {
  4702. $settings_options_array[] = $row;
  4703. }
  4704. return $settings_options_array;
  4705. }
  4706. /**
  4707. * @param array $params
  4708. */
  4709. function api_set_setting_option($params)
  4710. {
  4711. $table = Database::get_main_table(TABLE_MAIN_SETTINGS_OPTIONS);
  4712. if (empty($params['id'])) {
  4713. Database::insert($table, $params);
  4714. } else {
  4715. Database::update($table, $params, array('id = ? '=> $params['id']));
  4716. }
  4717. }
  4718. /**
  4719. * @param array $params
  4720. */
  4721. function api_set_setting_simple($params)
  4722. {
  4723. $table = Database::get_main_table(TABLE_MAIN_SETTINGS_CURRENT);
  4724. $url_id = api_get_current_access_url_id();
  4725. if (empty($params['id'])) {
  4726. $params['access_url'] = $url_id;
  4727. Database::insert($table, $params);
  4728. } else {
  4729. Database::update($table, $params, array('id = ? '=> array($params['id'])));
  4730. }
  4731. }
  4732. /**
  4733. * @param int $id
  4734. */
  4735. function api_delete_setting_option($id)
  4736. {
  4737. $table = Database::get_main_table(TABLE_MAIN_SETTINGS_OPTIONS);
  4738. if (!empty($id)) {
  4739. Database::delete($table, array('id = ? '=> $id));
  4740. }
  4741. }
  4742. /**
  4743. * Sets a platform configuration setting to a given value
  4744. * @param string The variable we want to update
  4745. * @param string The value we want to record
  4746. * @param string The sub-variable if any (in most cases, this will remain null)
  4747. * @param string The category if any (in most cases, this will remain null)
  4748. * @param int The access_url for which this parameter is valid
  4749. * @param string $cat
  4750. * @return bool|null
  4751. */
  4752. function api_set_setting($var, $value, $subvar = null, $cat = null, $access_url = 1)
  4753. {
  4754. if (empty($var)) {
  4755. return false;
  4756. }
  4757. $t_settings = Database::get_main_table(TABLE_MAIN_SETTINGS_CURRENT);
  4758. $var = Database::escape_string($var);
  4759. $value = Database::escape_string($value);
  4760. $access_url = (int) $access_url;
  4761. if (empty($access_url)) {
  4762. $access_url = 1;
  4763. }
  4764. $select = "SELECT id FROM $t_settings WHERE variable = '$var' ";
  4765. if (!empty($subvar)) {
  4766. $subvar = Database::escape_string($subvar);
  4767. $select .= " AND subkey = '$subvar'";
  4768. }
  4769. if (!empty($cat)) {
  4770. $cat = Database::escape_string($cat);
  4771. $select .= " AND category = '$cat'";
  4772. }
  4773. if ($access_url > 1) {
  4774. $select .= " AND access_url = $access_url";
  4775. } else {
  4776. $select .= " AND access_url = 1 ";
  4777. }
  4778. $res = Database::query($select);
  4779. if (Database::num_rows($res) > 0) {
  4780. // Found item for this access_url.
  4781. $row = Database::fetch_array($res);
  4782. $sql = "UPDATE $t_settings SET selected_value = '$value'
  4783. WHERE id = ".$row['id'];
  4784. Database::query($sql);
  4785. } else {
  4786. // Item not found for this access_url, we have to check if it exist with access_url = 1
  4787. $select = "SELECT * FROM $t_settings
  4788. WHERE variable = '$var' AND access_url = 1 ";
  4789. // Just in case
  4790. if ($access_url == 1) {
  4791. if (!empty($subvar)) {
  4792. $select .= " AND subkey = '$subvar'";
  4793. }
  4794. if (!empty($cat)) {
  4795. $select .= " AND category = '$cat'";
  4796. }
  4797. $res = Database::query($select);
  4798. if (Database::num_rows($res) > 0) {
  4799. // We have a setting for access_url 1, but none for the current one, so create one.
  4800. $row = Database::fetch_array($res);
  4801. $insert = "INSERT INTO $t_settings (variable, subkey, type,category, selected_value, title, comment, scope, subkeytext, access_url)
  4802. VALUES
  4803. ('".$row['variable']."',".(!empty($row['subkey']) ? "'".$row['subkey']."'" : "NULL").",".
  4804. "'".$row['type']."','".$row['category']."',".
  4805. "'$value','".$row['title']."',".
  4806. "".(!empty($row['comment']) ? "'".$row['comment']."'" : "NULL").",".(!empty($row['scope']) ? "'".$row['scope']."'" : "NULL").",".
  4807. "".(!empty($row['subkeytext']) ? "'".$row['subkeytext']."'" : "NULL").",$access_url)";
  4808. Database::query($insert);
  4809. } else {
  4810. // Such a setting does not exist.
  4811. //error_log(__FILE__.':'.__LINE__.': Attempting to update setting '.$var.' ('.$subvar.') which does not exist at all', 0);
  4812. }
  4813. } else {
  4814. // Other access url.
  4815. if (!empty($subvar)) {
  4816. $select .= " AND subkey = '$subvar'";
  4817. }
  4818. if (!empty($cat)) {
  4819. $select .= " AND category = '$cat'";
  4820. }
  4821. $res = Database::query($select);
  4822. if (Database::num_rows($res) > 0) {
  4823. // We have a setting for access_url 1, but none for the current one, so create one.
  4824. $row = Database::fetch_array($res);
  4825. if ($row['access_url_changeable'] == 1) {
  4826. $insert = "INSERT INTO $t_settings (variable,subkey, type,category, selected_value,title, comment,scope, subkeytext,access_url, access_url_changeable) VALUES
  4827. ('".$row['variable']."',".
  4828. (!empty($row['subkey']) ? "'".$row['subkey']."'" : "NULL").",".
  4829. "'".$row['type']."','".$row['category']."',".
  4830. "'$value','".$row['title']."',".
  4831. "".(!empty($row['comment']) ? "'".$row['comment']."'" : "NULL").",".
  4832. (!empty($row['scope']) ? "'".$row['scope']."'" : "NULL").",".
  4833. "".(!empty($row['subkeytext']) ? "'".$row['subkeytext']."'" : "NULL").",$access_url,".$row['access_url_changeable'].")";
  4834. Database::query($insert);
  4835. }
  4836. } else { // Such a setting does not exist.
  4837. //error_log(__FILE__.':'.__LINE__.': Attempting to update setting '.$var.' ('.$subvar.') which does not exist at all. The access_url is: '.$access_url.' ',0);
  4838. }
  4839. }
  4840. }
  4841. }
  4842. /**
  4843. * Sets a whole category of settings to one specific value
  4844. * @param string Category
  4845. * @param string Value
  4846. * @param int Access URL. Optional. Defaults to 1
  4847. * @param array Optional array of filters on field type
  4848. * @param string $category
  4849. * @param string $value
  4850. * @return bool
  4851. */
  4852. function api_set_settings_category($category, $value = null, $access_url = 1, $fieldtype = [])
  4853. {
  4854. if (empty($category)) {
  4855. return false;
  4856. }
  4857. $category = Database::escape_string($category);
  4858. $t_s = Database::get_main_table(TABLE_MAIN_SETTINGS_CURRENT);
  4859. $access_url = (int) $access_url;
  4860. if (empty($access_url)) { $access_url = 1; }
  4861. if (isset($value)) {
  4862. $value = Database::escape_string($value);
  4863. $sql = "UPDATE $t_s SET selected_value = '$value'
  4864. WHERE category = '$category' AND access_url = $access_url";
  4865. if (is_array($fieldtype) && count($fieldtype) > 0) {
  4866. $sql .= " AND ( ";
  4867. $i = 0;
  4868. foreach ($fieldtype as $type) {
  4869. if ($i > 0) {
  4870. $sql .= ' OR ';
  4871. }
  4872. $type = Database::escape_string($type);
  4873. $sql .= " type='".$type."' ";
  4874. $i++;
  4875. }
  4876. $sql .= ")";
  4877. }
  4878. $res = Database::query($sql);
  4879. return $res !== false;
  4880. } else {
  4881. $sql = "UPDATE $t_s SET selected_value = NULL
  4882. WHERE category = '$category' AND access_url = $access_url";
  4883. if (is_array($fieldtype) && count($fieldtype) > 0) {
  4884. $sql .= " AND ( ";
  4885. $i = 0;
  4886. foreach ($fieldtype as $type) {
  4887. if ($i > 0) {
  4888. $sql .= ' OR ';
  4889. }
  4890. $type = Database::escape_string($type);
  4891. $sql .= " type='".$type."' ";
  4892. $i++;
  4893. }
  4894. $sql .= ")";
  4895. }
  4896. $res = Database::query($sql);
  4897. return $res !== false;
  4898. }
  4899. }
  4900. /**
  4901. * Gets all available access urls in an array (as in the database)
  4902. * @return array An array of database records
  4903. */
  4904. function api_get_access_urls($from = 0, $to = 1000000, $order = 'url', $direction = 'ASC')
  4905. {
  4906. $table = Database::get_main_table(TABLE_MAIN_ACCESS_URL);
  4907. $from = (int) $from;
  4908. $to = (int) $to;
  4909. $order = Database::escape_string($order, null, false);
  4910. $direction = Database::escape_string($direction, null, false);
  4911. $sql = "SELECT id, url, description, active, created_by, tms
  4912. FROM $table
  4913. ORDER BY $order $direction
  4914. LIMIT $to OFFSET $from";
  4915. $res = Database::query($sql);
  4916. return Database::store_result($res);
  4917. }
  4918. /**
  4919. * Gets the access url info in an array
  4920. * @param int $id Id of the access url
  4921. * @param bool $returnDefault Set to false if you want the real URL if URL 1 is still 'http://localhost/'
  4922. * @return array All the info (url, description, active, created_by, tms)
  4923. * from the access_url table
  4924. * @author Julio Montoya
  4925. */
  4926. function api_get_access_url($id, $returnDefault = true)
  4927. {
  4928. static $staticResult;
  4929. $id = intval($id);
  4930. if (isset($staticResult[$id])) {
  4931. $result = $staticResult[$id];
  4932. } else {
  4933. // Calling the Database:: library dont work this is handmade.
  4934. $table_access_url = Database::get_main_table(TABLE_MAIN_ACCESS_URL);
  4935. $sql = "SELECT url, description, active, created_by, tms
  4936. FROM $table_access_url WHERE id = '$id' ";
  4937. $res = Database::query($sql);
  4938. $result = @Database::fetch_array($res);
  4939. $staticResult[$id] = $result;
  4940. }
  4941. // If the result url is 'http://localhost/' (the default) and the root_web
  4942. // (=current url) is different, and the $id is = 1 (which might mean
  4943. // api_get_current_access_url_id() returned 1 by default), then return the
  4944. // root_web setting instead of the current URL
  4945. // This is provided as an option to avoid breaking the storage of URL-specific
  4946. // homepages in home/localhost/
  4947. if ($id === 1 && $returnDefault === false) {
  4948. $currentUrl = api_get_current_access_url_id();
  4949. // only do this if we are on the main URL (=1), otherwise we could get
  4950. // information on another URL instead of the one asked as parameter
  4951. if ($currentUrl === 1) {
  4952. $rootWeb = api_get_path(WEB_PATH);
  4953. $default = 'http://localhost/';
  4954. if ($result['url'] === $default && $rootWeb != $default) {
  4955. $result['url'] = $rootWeb;
  4956. }
  4957. }
  4958. }
  4959. return $result;
  4960. }
  4961. /**
  4962. * Gets all the current settings for a specific access url
  4963. * @param string The category, if any, that we want to get
  4964. * @param string Whether we want a simple list (display a category) or
  4965. * a grouped list (group by variable as in settings.php default). Values: 'list' or 'group'
  4966. * @param int Access URL's ID. Optional. Uses 1 by default, which is the unique URL
  4967. * @return array Array of database results for the current settings of the current access URL
  4968. */
  4969. function &api_get_settings($cat = null, $ordering = 'list', $access_url = 1, $url_changeable = 0)
  4970. {
  4971. $table = Database::get_main_table(TABLE_MAIN_SETTINGS_CURRENT);
  4972. $access_url = (int) $access_url;
  4973. $where_condition = '';
  4974. if ($url_changeable == 1) {
  4975. $where_condition = " AND access_url_changeable= '1' ";
  4976. }
  4977. if (empty($access_url) || $access_url == -1) {
  4978. $access_url = 1;
  4979. }
  4980. $sql = "SELECT * FROM $table
  4981. WHERE access_url = $access_url $where_condition ";
  4982. if (!empty($cat)) {
  4983. $cat = Database::escape_string($cat);
  4984. $sql .= " AND category='$cat' ";
  4985. }
  4986. if ($ordering == 'group') {
  4987. $sql .= " ORDER BY id ASC";
  4988. } else {
  4989. $sql .= " ORDER BY 1,2 ASC";
  4990. }
  4991. $result = Database::query($sql);
  4992. if ($result === null) {
  4993. return [];
  4994. }
  4995. $result = Database::store_result($result, 'ASSOC');
  4996. return $result;
  4997. }
  4998. /**
  4999. * @param string $value The value we want to record
  5000. * @param string $variable The variable name we want to insert
  5001. * @param string $subKey The subkey for the variable we want to insert
  5002. * @param string $type The type for the variable we want to insert
  5003. * @param string $category The category for the variable we want to insert
  5004. * @param string $title The title
  5005. * @param string $comment The comment
  5006. * @param string $scope The scope
  5007. * @param string $subKeyText The subkey text
  5008. * @param int $accessUrlId The access_url for which this parameter is valid
  5009. * @param int $visibility The changeability of this setting for non-master urls
  5010. * @return int The setting ID
  5011. */
  5012. function api_add_setting(
  5013. $value,
  5014. $variable,
  5015. $subKey = '',
  5016. $type = 'textfield',
  5017. $category = '',
  5018. $title = '',
  5019. $comment = '',
  5020. $scope = '',
  5021. $subKeyText = '',
  5022. $accessUrlId = 1,
  5023. $visibility = 0
  5024. ) {
  5025. $em = Database::getManager();
  5026. $settingRepo = $em->getRepository('ChamiloCoreBundle:SettingsCurrent');
  5027. $accessUrlId = (int) $accessUrlId ?: 1;
  5028. if (is_array($value)) {
  5029. $value = serialize($value);
  5030. } else {
  5031. $value = trim($value);
  5032. }
  5033. $criteria = ['variable' => $variable, 'accessUrl' => $accessUrlId];
  5034. if (!empty($subKey)) {
  5035. $criteria['subkey'] = $subKey;
  5036. }
  5037. // Check if this variable doesn't exist already
  5038. /** @var SettingsCurrent $setting */
  5039. $setting = $settingRepo->findOneBy($criteria);
  5040. if ($setting) {
  5041. $setting->setSelectedValue($value);
  5042. $em->persist($setting);
  5043. $em->flush();
  5044. return $setting->getId();
  5045. }
  5046. // Item not found for this access_url, we have to check if the whole thing is missing
  5047. // (in which case we ignore the insert) or if there *is* a record but just for access_url = 1
  5048. $setting = new SettingsCurrent();
  5049. $setting
  5050. ->setVariable($variable)
  5051. ->setSelectedValue($value)
  5052. ->setType($type)
  5053. ->setCategory($category)
  5054. ->setSubkey($subKey)
  5055. ->setTitle($title)
  5056. ->setComment($comment)
  5057. ->setScope($scope)
  5058. ->setSubkeytext($subKeyText)
  5059. ->setAccessUrl($accessUrlId)
  5060. ->setAccessUrlChangeable($visibility);
  5061. $em->persist($setting);
  5062. $em->flush();
  5063. return $setting->getId();
  5064. }
  5065. /**
  5066. * Checks wether a user can or can't view the contents of a course.
  5067. * @deprecated use CourseManager::is_user_subscribed_in_course
  5068. * @param int $userid User id or NULL to get it from $_SESSION
  5069. * @param int $cid Course id to check whether the user is allowed.
  5070. * @return bool
  5071. */
  5072. function api_is_course_visible_for_user($userid = null, $cid = null)
  5073. {
  5074. if ($userid === null) {
  5075. $userid = api_get_user_id();
  5076. }
  5077. if (empty($userid) || strval(intval($userid)) != $userid) {
  5078. if (api_is_anonymous()) {
  5079. $userid = api_get_anonymous_id();
  5080. } else {
  5081. return false;
  5082. }
  5083. }
  5084. $cid = Database::escape_string($cid);
  5085. $courseInfo = api_get_course_info($cid);
  5086. $courseId = $courseInfo['real_id'];
  5087. $is_platformAdmin = api_is_platform_admin();
  5088. $course_table = Database::get_main_table(TABLE_MAIN_COURSE);
  5089. $course_cat_table = Database::get_main_table(TABLE_MAIN_CATEGORY);
  5090. $sql = "SELECT
  5091. $course_table.category_code,
  5092. $course_table.visibility,
  5093. $course_table.code,
  5094. $course_cat_table.code
  5095. FROM $course_table
  5096. LEFT JOIN $course_cat_table
  5097. ON $course_table.category_code = $course_cat_table.code
  5098. WHERE
  5099. $course_table.code = '$cid'
  5100. LIMIT 1";
  5101. $result = Database::query($sql);
  5102. if (Database::num_rows($result) > 0) {
  5103. $visibility = Database::fetch_array($result);
  5104. $visibility = $visibility['visibility'];
  5105. } else {
  5106. $visibility = 0;
  5107. }
  5108. // Shortcut permissions in case the visibility is "open to the world".
  5109. if ($visibility === COURSE_VISIBILITY_OPEN_WORLD) {
  5110. return true;
  5111. }
  5112. $tbl_course_user = Database::get_main_table(TABLE_MAIN_COURSE_USER);
  5113. $sql = "SELECT
  5114. is_tutor, status
  5115. FROM $tbl_course_user
  5116. WHERE
  5117. user_id = '$userid' AND
  5118. relation_type <> '".COURSE_RELATION_TYPE_RRHH."' AND
  5119. c_id = $courseId
  5120. LIMIT 1";
  5121. $result = Database::query($sql);
  5122. if (Database::num_rows($result) > 0) {
  5123. // This user has got a recorded state for this course.
  5124. $cuData = Database::fetch_array($result);
  5125. $is_courseMember = true;
  5126. $is_courseAdmin = ($cuData['status'] == 1);
  5127. }
  5128. if (!$is_courseAdmin) {
  5129. // This user has no status related to this course.
  5130. // Is it the session coach or the session admin?
  5131. $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
  5132. $tbl_session_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
  5133. $tbl_session_course_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
  5134. $sql = "SELECT
  5135. session.id_coach, session_admin_id, session.id
  5136. FROM
  5137. $tbl_session as session
  5138. INNER JOIN $tbl_session_course
  5139. ON session_rel_course.session_id = session.id
  5140. AND session_rel_course.c_id = '$courseId'
  5141. LIMIT 1";
  5142. $result = Database::query($sql);
  5143. $row = Database::store_result($result);
  5144. if ($row[0]['id_coach'] == $userid) {
  5145. $is_courseMember = true;
  5146. $is_courseAdmin = false;
  5147. }
  5148. elseif ($row[0]['session_admin_id'] == $userid) {
  5149. $is_courseMember = false;
  5150. $is_courseAdmin = false;
  5151. } else {
  5152. // Check if the current user is the course coach.
  5153. $sql = "SELECT 1
  5154. FROM $tbl_session_course
  5155. WHERE session_rel_course.c_id = '$courseId'
  5156. AND session_rel_course.id_coach = '$userid'
  5157. LIMIT 1";
  5158. $result = Database::query($sql);
  5159. //if ($row = Database::fetch_array($result)) {
  5160. if (Database::num_rows($result) > 0) {
  5161. $is_courseMember = true;
  5162. $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
  5163. $sql = "SELECT status FROM $tbl_user
  5164. WHERE user_id = $userid
  5165. LIMIT 1";
  5166. $result = Database::query($sql);
  5167. if (Database::result($result, 0, 0) == 1) {
  5168. $is_courseAdmin = true;
  5169. } else {
  5170. $is_courseAdmin = false;
  5171. }
  5172. } else {
  5173. // Check if the user is a student is this session.
  5174. $sql = "SELECT id
  5175. FROM $tbl_session_course_user
  5176. WHERE
  5177. user_id = '$userid' AND
  5178. c_id = '$courseId'
  5179. LIMIT 1";
  5180. if (Database::num_rows($result) > 0) {
  5181. // This user haa got a recorded state for this course.
  5182. while ($row = Database::fetch_array($result)) {
  5183. $is_courseMember = true;
  5184. $is_courseAdmin = false;
  5185. }
  5186. }
  5187. }
  5188. }
  5189. }
  5190. switch ($visibility) {
  5191. case COURSE_VISIBILITY_OPEN_WORLD:
  5192. return true;
  5193. case COURSE_VISIBILITY_OPEN_PLATFORM:
  5194. return isset($userid);
  5195. case COURSE_VISIBILITY_REGISTERED:
  5196. case COURSE_VISIBILITY_CLOSED:
  5197. return $is_platformAdmin || $is_courseMember || $is_courseAdmin;
  5198. case COURSE_VISIBILITY_HIDDEN:
  5199. return $is_platformAdmin;
  5200. }
  5201. return false;
  5202. }
  5203. /**
  5204. * Returns whether an element (forum, message, survey ...) belongs to a session or not
  5205. * @param String the tool of the element
  5206. * @param int the element id in database
  5207. * @param int the session_id to compare with element session id
  5208. * @param string $tool
  5209. * @return boolean true if the element is in the session, false else
  5210. */
  5211. function api_is_element_in_the_session($tool, $element_id, $session_id = null)
  5212. {
  5213. if (is_null($session_id)) {
  5214. $session_id = api_get_session_id();
  5215. }
  5216. // Get information to build query depending of the tool.
  5217. switch ($tool) {
  5218. case TOOL_SURVEY :
  5219. $table_tool = Database::get_course_table(TABLE_SURVEY);
  5220. $key_field = 'survey_id';
  5221. break;
  5222. case TOOL_ANNOUNCEMENT :
  5223. $table_tool = Database::get_course_table(TABLE_ANNOUNCEMENT);
  5224. $key_field = 'id';
  5225. break;
  5226. case TOOL_AGENDA :
  5227. $table_tool = Database::get_course_table(TABLE_AGENDA);
  5228. $key_field = 'id';
  5229. break;
  5230. case TOOL_GROUP :
  5231. $table_tool = Database::get_course_table(TABLE_GROUP);
  5232. $key_field = 'id';
  5233. break;
  5234. default:
  5235. return false;
  5236. }
  5237. $course_id = api_get_course_int_id();
  5238. $sql = "SELECT session_id FROM $table_tool
  5239. WHERE c_id = $course_id AND $key_field = ".intval($element_id);
  5240. $rs = Database::query($sql);
  5241. if ($element_session_id = Database::result($rs, 0, 0)) {
  5242. if ($element_session_id == intval($session_id)) {
  5243. // The element belongs to the session.
  5244. return true;
  5245. }
  5246. }
  5247. return false;
  5248. }
  5249. /**
  5250. * Replaces "forbidden" characters in a filename string.
  5251. *
  5252. * @param string $filename
  5253. * @param bool $treat_spaces_as_hyphens
  5254. *
  5255. * @return string
  5256. */
  5257. function api_replace_dangerous_char($filename, $treat_spaces_as_hyphens = true)
  5258. {
  5259. return URLify::filter(
  5260. $filename,
  5261. 250,
  5262. '',
  5263. true,
  5264. true,
  5265. false,
  5266. false,
  5267. $treat_spaces_as_hyphens
  5268. );
  5269. }
  5270. /**
  5271. * Fixes the $_SERVER['REQUEST_URI'] that is empty in IIS6.
  5272. * @author Ivan Tcholakov, 28-JUN-2006.
  5273. */
  5274. function api_request_uri() {
  5275. if (!empty($_SERVER['REQUEST_URI'])) {
  5276. return $_SERVER['REQUEST_URI'];
  5277. }
  5278. $uri = $_SERVER['SCRIPT_NAME'];
  5279. if (!empty($_SERVER['QUERY_STRING'])) {
  5280. $uri .= '?'.$_SERVER['QUERY_STRING'];
  5281. }
  5282. $_SERVER['REQUEST_URI'] = $uri;
  5283. return $uri;
  5284. }
  5285. /** Gets the current access_url id of the Chamilo Platform
  5286. * @author Julio Montoya <gugli100@gmail.com>
  5287. * @return int access_url_id of the current Chamilo Installation
  5288. */
  5289. function api_get_current_access_url_id()
  5290. {
  5291. $access_url_table = Database::get_main_table(TABLE_MAIN_ACCESS_URL);
  5292. $path = Database::escape_string(api_get_path(WEB_PATH));
  5293. $sql = "SELECT id FROM $access_url_table WHERE url = '".$path."'";
  5294. $result = Database::query($sql);
  5295. if (Database::num_rows($result) > 0) {
  5296. $access_url_id = Database::result($result, 0, 0);
  5297. return $access_url_id;
  5298. }
  5299. //if the url in WEB_PATH was not found, it can only mean that there is
  5300. // either a configuration problem or the first URL has not been defined yet
  5301. // (by default it is http://localhost/). Thus the more sensible thing we can
  5302. // do is return 1 (the main URL) as the user cannot hack this value anyway
  5303. return 1;
  5304. }
  5305. /**
  5306. * Gets the registered urls from a given user id
  5307. * @author Julio Montoya <gugli100@gmail.com>
  5308. * @return int user id
  5309. */
  5310. function api_get_access_url_from_user($user_id)
  5311. {
  5312. $user_id = intval($user_id);
  5313. $table_url_rel_user = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
  5314. $table_url = Database::get_main_table(TABLE_MAIN_ACCESS_URL);
  5315. $sql = "SELECT access_url_id
  5316. FROM $table_url_rel_user url_rel_user
  5317. INNER JOIN $table_url u
  5318. ON (url_rel_user.access_url_id = u.id)
  5319. WHERE user_id = ".intval($user_id);
  5320. $result = Database::query($sql);
  5321. $list = [];
  5322. while ($row = Database::fetch_array($result, 'ASSOC')) {
  5323. $list[] = $row['access_url_id'];
  5324. }
  5325. return $list;
  5326. }
  5327. /**
  5328. * Gets the status of a user in a course
  5329. * @param int $user_id
  5330. * @param int $courseId
  5331. * @return int user status
  5332. */
  5333. function api_get_status_of_user_in_course($user_id, $courseId)
  5334. {
  5335. $tbl_rel_course_user = Database::get_main_table(TABLE_MAIN_COURSE_USER);
  5336. if (!empty($user_id) && !empty($courseId)) {
  5337. $user_id = intval($user_id);
  5338. $courseId = intval($courseId);
  5339. $sql = 'SELECT status
  5340. FROM '.$tbl_rel_course_user.'
  5341. WHERE user_id='.$user_id.' AND c_id = '.$courseId;
  5342. $result = Database::query($sql);
  5343. $row_status = Database::fetch_array($result, 'ASSOC');
  5344. return $row_status['status'];
  5345. } else {
  5346. return 0;
  5347. }
  5348. }
  5349. /**
  5350. * Checks whether the curent user is in a group or not.
  5351. *
  5352. * @param string The group id - optional (takes it from session if not given)
  5353. * @param string The course code - optional (no additional check by course if course code is not given)
  5354. * @return boolean
  5355. * @author Ivan Tcholakov
  5356. */
  5357. function api_is_in_group($groupIdParam = null, $courseCodeParam = null)
  5358. {
  5359. if (!empty($courseCodeParam)) {
  5360. $courseCode = api_get_course_id();
  5361. if (!empty($courseCode)) {
  5362. if ($courseCodeParam != $courseCode) {
  5363. return false;
  5364. }
  5365. } else {
  5366. return false;
  5367. }
  5368. }
  5369. $groupId = api_get_group_id();
  5370. if (isset($groupId) && $groupId != '') {
  5371. if (!empty($groupIdParam)) {
  5372. return $groupIdParam == $groupId;
  5373. } else {
  5374. return true;
  5375. }
  5376. }
  5377. return false;
  5378. }
  5379. /**
  5380. * Checks whether a secret key is valid
  5381. * @param string $original_key_secret - secret key from (webservice) client
  5382. * @param string $security_key - security key from Chamilo
  5383. * @return boolean - true if secret key is valid, false otherwise
  5384. */
  5385. function api_is_valid_secret_key($original_key_secret, $security_key)
  5386. {
  5387. return $original_key_secret == sha1($security_key);
  5388. }
  5389. /**
  5390. * Checks whether a user is into course
  5391. * @param int $course_id - the course id
  5392. * @param int $user_id - the user id
  5393. * @return bool
  5394. */
  5395. function api_is_user_of_course($course_id, $user_id)
  5396. {
  5397. $tbl_course_rel_user = Database::get_main_table(TABLE_MAIN_COURSE_USER);
  5398. $sql = 'SELECT user_id FROM '.$tbl_course_rel_user.'
  5399. WHERE
  5400. c_id ="'.intval($course_id).'" AND
  5401. user_id = "'.intval($user_id).'" AND
  5402. relation_type <> '.COURSE_RELATION_TYPE_RRHH.' ';
  5403. $result = Database::query($sql);
  5404. return Database::num_rows($result) == 1;
  5405. }
  5406. /**
  5407. * Checks whether the server's operating system is Windows (TM).
  5408. * @return boolean - true if the operating system is Windows, false otherwise
  5409. */
  5410. function api_is_windows_os()
  5411. {
  5412. if (function_exists('php_uname')) {
  5413. // php_uname() exists as of PHP 4.0.2, according to the documentation.
  5414. // We expect that this function will always work for Chamilo 1.8.x.
  5415. $os = php_uname();
  5416. }
  5417. // The following methods are not needed, but let them stay, just in case.
  5418. elseif (isset($_ENV['OS'])) {
  5419. // Sometimes $_ENV['OS'] may not be present (bugs?)
  5420. $os = $_ENV['OS'];
  5421. }
  5422. elseif (defined('PHP_OS')) {
  5423. // PHP_OS means on which OS PHP was compiled, this is why
  5424. // using PHP_OS is the last choice for detection.
  5425. $os = PHP_OS;
  5426. } else {
  5427. return false;
  5428. }
  5429. return strtolower(substr((string) $os, 0, 3)) == 'win';
  5430. }
  5431. /**
  5432. * This function informs whether the sent request is XMLHttpRequest
  5433. */
  5434. function api_is_xml_http_request()
  5435. {
  5436. return isset($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest';
  5437. }
  5438. /**
  5439. * This wrapper function has been implemented for avoiding some known problems about the function getimagesize().
  5440. * @link http://php.net/manual/en/function.getimagesize.php
  5441. * @link http://www.dokeos.com/forum/viewtopic.php?t=12345
  5442. * @link http://www.dokeos.com/forum/viewtopic.php?t=16355
  5443. * @return integer
  5444. */
  5445. function api_getimagesize($path)
  5446. {
  5447. $image = new Image($path);
  5448. return $image->get_image_size();
  5449. }
  5450. /**
  5451. * This function resizes an image, with preserving its proportions (or aspect ratio).
  5452. * @author Ivan Tcholakov, MAY-2009.
  5453. * @param int $image System path or URL of the image
  5454. * @param int $target_width Targeted width
  5455. * @param int $target_height Targeted height
  5456. * @return array Calculated new width and height
  5457. */
  5458. function api_resize_image($image, $target_width, $target_height)
  5459. {
  5460. $image_properties = api_getimagesize($image);
  5461. return api_calculate_image_size(
  5462. $image_properties['width'],
  5463. $image_properties['height'],
  5464. $target_width,
  5465. $target_height
  5466. );
  5467. }
  5468. /**
  5469. * This function calculates new image size, with preserving image's proportions (or aspect ratio).
  5470. * @author Ivan Tcholakov, MAY-2009.
  5471. * @author The initial idea has been taken from code by Patrick Cool, MAY-2004.
  5472. * @param int $image_width Initial width
  5473. * @param int $image_height Initial height
  5474. * @param int $target_width Targeted width
  5475. * @param int $target_height Targeted height
  5476. * @return array Calculated new width and height
  5477. */
  5478. function api_calculate_image_size(
  5479. $image_width,
  5480. $image_height,
  5481. $target_width,
  5482. $target_height
  5483. ) {
  5484. // Only maths is here.
  5485. $result = array('width' => $image_width, 'height' => $image_height);
  5486. if ($image_width <= 0 || $image_height <= 0) {
  5487. return $result;
  5488. }
  5489. $resize_factor_width = $target_width / $image_width;
  5490. $resize_factor_height = $target_height / $image_height;
  5491. $delta_width = $target_width - $image_width * $resize_factor_height;
  5492. $delta_height = $target_height - $image_height * $resize_factor_width;
  5493. if ($delta_width > $delta_height) {
  5494. $result['width'] = ceil($image_width * $resize_factor_height);
  5495. $result['height'] = ceil($image_height * $resize_factor_height);
  5496. } elseif ($delta_width < $delta_height) {
  5497. $result['width'] = ceil($image_width * $resize_factor_width);
  5498. $result['height'] = ceil($image_height * $resize_factor_width);
  5499. } else {
  5500. $result['width'] = ceil($target_width);
  5501. $result['height'] = ceil($target_height);
  5502. }
  5503. return $result;
  5504. }
  5505. /**
  5506. * Returns a list of Chamilo's tools or
  5507. * checks whether a given identificator is a valid Chamilo's tool.
  5508. * @author Isaac flores paz
  5509. * @param string The tool name to filter
  5510. * @return mixed Filtered string or array
  5511. */
  5512. function api_get_tools_lists($my_tool = null)
  5513. {
  5514. $tools_list = array(
  5515. TOOL_DOCUMENT,
  5516. TOOL_THUMBNAIL,
  5517. TOOL_HOTPOTATOES,
  5518. TOOL_CALENDAR_EVENT,
  5519. TOOL_LINK,
  5520. TOOL_COURSE_DESCRIPTION,
  5521. TOOL_SEARCH,
  5522. TOOL_LEARNPATH,
  5523. TOOL_ANNOUNCEMENT,
  5524. TOOL_FORUM,
  5525. TOOL_THREAD,
  5526. TOOL_POST,
  5527. TOOL_DROPBOX,
  5528. TOOL_QUIZ,
  5529. TOOL_USER,
  5530. TOOL_GROUP,
  5531. TOOL_BLOGS,
  5532. TOOL_CHAT,
  5533. TOOL_STUDENTPUBLICATION,
  5534. TOOL_TRACKING,
  5535. TOOL_HOMEPAGE_LINK,
  5536. TOOL_COURSE_SETTING,
  5537. TOOL_BACKUP,
  5538. TOOL_COPY_COURSE_CONTENT,
  5539. TOOL_RECYCLE_COURSE,
  5540. TOOL_COURSE_HOMEPAGE,
  5541. TOOL_COURSE_RIGHTS_OVERVIEW,
  5542. TOOL_UPLOAD,
  5543. TOOL_COURSE_MAINTENANCE,
  5544. TOOL_SURVEY,
  5545. TOOL_WIKI,
  5546. TOOL_GLOSSARY,
  5547. TOOL_GRADEBOOK,
  5548. TOOL_NOTEBOOK,
  5549. TOOL_ATTENDANCE,
  5550. TOOL_COURSE_PROGRESS,
  5551. );
  5552. if (empty($my_tool)) {
  5553. return $tools_list;
  5554. }
  5555. return in_array($my_tool, $tools_list) ? $my_tool : '';
  5556. }
  5557. /**
  5558. * Checks whether we already approved the last version term and condition
  5559. * @param int user id
  5560. * @return bool true if we pass false otherwise
  5561. */
  5562. function api_check_term_condition($userId)
  5563. {
  5564. if (api_get_setting('allow_terms_conditions') == 'true') {
  5565. // Check if exists terms and conditions
  5566. if (LegalManager::count() == 0) {
  5567. return true;
  5568. }
  5569. $extraFieldValue = new ExtraFieldValue('user');
  5570. $data = $extraFieldValue->get_values_by_handler_and_field_variable(
  5571. $userId,
  5572. 'legal_accept'
  5573. );
  5574. if (!empty($data) && isset($data['value']) && !empty($data['value'])) {
  5575. $result = $data['value'];
  5576. $user_conditions = explode(':', $result);
  5577. $version = $user_conditions[0];
  5578. $lang_id = $user_conditions[1];
  5579. $real_version = LegalManager::get_last_version($lang_id);
  5580. return $version >= $real_version;
  5581. }
  5582. return false;
  5583. }
  5584. return false;
  5585. }
  5586. /**
  5587. * Gets all information of a tool into course
  5588. * @param int The tool id
  5589. * @return array
  5590. */
  5591. function api_get_tool_information_by_name($name)
  5592. {
  5593. $t_tool = Database::get_course_table(TABLE_TOOL_LIST);
  5594. $course_id = api_get_course_int_id();
  5595. $sql = "SELECT * FROM $t_tool
  5596. WHERE c_id = $course_id AND name = '".Database::escape_string($name)."' ";
  5597. $rs = Database::query($sql);
  5598. return Database::fetch_array($rs, 'ASSOC');
  5599. }
  5600. /**
  5601. * Function used to protect a "global" admin script.
  5602. * The function blocks access when the user has no global platform admin rights.
  5603. * Global admins are the admins that are registered in the main.admin table
  5604. * AND the users who have access to the "principal" portal.
  5605. * That means that there is a record in the main.access_url_rel_user table
  5606. * with his user id and the access_url_id=1
  5607. *
  5608. * @author Julio Montoya
  5609. * @param integer $user_id
  5610. * @return bool
  5611. */
  5612. function api_is_global_platform_admin($user_id = null)
  5613. {
  5614. $user_id = intval($user_id);
  5615. if (empty($user_id)) {
  5616. $user_id = api_get_user_id();
  5617. }
  5618. if (api_is_platform_admin_by_id($user_id)) {
  5619. $urlList = api_get_access_url_from_user($user_id);
  5620. // The admin is registered in the first "main" site with access_url_id = 1
  5621. if (in_array(1, $urlList)) {
  5622. return true;
  5623. } else {
  5624. return false;
  5625. }
  5626. }
  5627. return false;
  5628. }
  5629. /**
  5630. * @param int $admin_id_to_check
  5631. * @param int $my_user_id
  5632. * @param bool $allow_session_admin
  5633. * @return bool
  5634. */
  5635. function api_global_admin_can_edit_admin(
  5636. $admin_id_to_check,
  5637. $my_user_id = null,
  5638. $allow_session_admin = false
  5639. ) {
  5640. if (empty($my_user_id)) {
  5641. $my_user_id = api_get_user_id();
  5642. }
  5643. $iam_a_global_admin = api_is_global_platform_admin($my_user_id);
  5644. $user_is_global_admin = api_is_global_platform_admin($admin_id_to_check);
  5645. if ($iam_a_global_admin) {
  5646. // Global admin can edit everything
  5647. return true;
  5648. } else {
  5649. // If i'm a simple admin
  5650. $is_platform_admin = api_is_platform_admin_by_id($my_user_id);
  5651. if ($allow_session_admin) {
  5652. $is_platform_admin = api_is_platform_admin_by_id($my_user_id) || (api_get_user_status($my_user_id) == SESSIONADMIN);
  5653. }
  5654. if ($is_platform_admin) {
  5655. if ($user_is_global_admin) {
  5656. return false;
  5657. } else {
  5658. return true;
  5659. }
  5660. } else {
  5661. return false;
  5662. }
  5663. }
  5664. }
  5665. /**
  5666. * @param int $admin_id_to_check
  5667. * @param int $my_user_id
  5668. * @param bool $allow_session_admin
  5669. * @return boolean|null
  5670. */
  5671. function api_protect_super_admin($admin_id_to_check, $my_user_id = null, $allow_session_admin = false)
  5672. {
  5673. if (api_global_admin_can_edit_admin($admin_id_to_check, $my_user_id, $allow_session_admin)) {
  5674. return true;
  5675. } else {
  5676. api_not_allowed();
  5677. }
  5678. }
  5679. /**
  5680. * Function used to protect a global admin script.
  5681. * The function blocks access when the user has no global platform admin rights.
  5682. * See also the api_is_global_platform_admin() function wich defines who's a "global" admin
  5683. *
  5684. * @author Julio Montoya
  5685. */
  5686. function api_protect_global_admin_script()
  5687. {
  5688. if (!api_is_global_platform_admin()) {
  5689. api_not_allowed();
  5690. return false;
  5691. }
  5692. return true;
  5693. }
  5694. /**
  5695. * Get active template
  5696. * @param string theme type (optional: default)
  5697. * @param string path absolute(abs) or relative(rel) (optional:rel)
  5698. * @return string actived template path
  5699. */
  5700. function api_get_template($path_type = 'rel')
  5701. {
  5702. $path_types = array('rel', 'abs');
  5703. $template_path = '';
  5704. if (in_array($path_type, $path_types)) {
  5705. if ($path_type == 'rel') {
  5706. $template_path = api_get_path(SYS_TEMPLATE_PATH);
  5707. } else {
  5708. $template_path = api_get_path(WEB_TEMPLATE_PATH);
  5709. }
  5710. }
  5711. $actived_theme = 'default';
  5712. if (api_get_setting('active_template')) {
  5713. $actived_theme = api_get_setting('active_template');
  5714. }
  5715. $actived_theme_path = $template_path.$actived_theme.DIRECTORY_SEPARATOR;
  5716. return $actived_theme_path;
  5717. }
  5718. /**
  5719. * Check browser support for specific file types or features
  5720. * This function checks if the user's browser supports a file format or given
  5721. * feature, or returns the current browser and major version when
  5722. * $format=check_browser. Only a limited number of formats and features are
  5723. * checked by this method. Make sure you check its definition first.
  5724. * @param string $format Can be a file format (extension like svg, webm, ...) or a feature (like autocapitalize, ...)
  5725. *
  5726. * @return bool or return text array if $format=check_browser
  5727. * @author Juan Carlos Raña Trabado
  5728. */
  5729. function api_browser_support($format = '')
  5730. {
  5731. $browser = new Browser();
  5732. $current_browser = $browser->getBrowser();
  5733. $a_versiontemp = explode('.', $browser->getVersion());
  5734. $current_majorver = $a_versiontemp[0];
  5735. static $result;
  5736. if (isset($result[$format])) {
  5737. return $result[$format];
  5738. }
  5739. // Native svg support
  5740. if ($format == 'svg') {
  5741. if (($current_browser == 'Internet Explorer' && $current_majorver >= 9) ||
  5742. ($current_browser == 'Firefox' && $current_majorver > 1) ||
  5743. ($current_browser == 'Safari' && $current_majorver >= 4) ||
  5744. ($current_browser == 'Chrome' && $current_majorver >= 1) ||
  5745. ($current_browser == 'Opera' && $current_majorver >= 9)
  5746. ) {
  5747. $result[$format] = true;
  5748. return true;
  5749. } else {
  5750. $result[$format] = false;
  5751. return false;
  5752. }
  5753. } elseif ($format == 'pdf') {
  5754. //native pdf support
  5755. if ($current_browser == 'Chrome' && $current_majorver >= 6) {
  5756. $result[$format] = true;
  5757. return true;
  5758. } else {
  5759. $result[$format] = false;
  5760. return false;
  5761. }
  5762. } elseif ($format == 'tif' || $format == 'tiff') {
  5763. //native tif support
  5764. if ($current_browser == 'Safari' && $current_majorver >= 5) {
  5765. $result[$format] = true;
  5766. return true;
  5767. } else {
  5768. $result[$format] = false;
  5769. return false;
  5770. }
  5771. } elseif ($format == 'ogg' || $format == 'ogx' || $format == 'ogv' || $format == 'oga') {
  5772. //native ogg, ogv,oga support
  5773. if (($current_browser == 'Firefox' && $current_majorver >= 3) ||
  5774. ($current_browser == 'Chrome' && $current_majorver >= 3) ||
  5775. ($current_browser == 'Opera' && $current_majorver >= 9)) {
  5776. $result[$format] = true;
  5777. return true;
  5778. } else {
  5779. $result[$format] = false;
  5780. return false;
  5781. }
  5782. } elseif ($format == 'mpg' || $format == 'mpeg') {
  5783. //native mpg support
  5784. if (($current_browser == 'Safari' && $current_majorver >= 5)) {
  5785. $result[$format] = true;
  5786. return true;
  5787. } else {
  5788. $result[$format] = false;
  5789. return false;
  5790. }
  5791. } elseif ($format == 'mp4') {
  5792. //native mp4 support (TODO: Android, iPhone)
  5793. if ($current_browser == 'Android' || $current_browser == 'iPhone') {
  5794. $result[$format] = true;
  5795. return true;
  5796. } else {
  5797. $result[$format] = false;
  5798. return false;
  5799. }
  5800. } elseif ($format == 'mov') {
  5801. //native mov support( TODO:check iPhone)
  5802. if ($current_browser == 'Safari' && $current_majorver >= 5 || $current_browser == 'iPhone') {
  5803. $result[$format] = true;
  5804. return true;
  5805. } else {
  5806. $result[$format] = false;
  5807. return false;
  5808. }
  5809. } elseif ($format == 'avi') {
  5810. //native avi support
  5811. if ($current_browser == 'Safari' && $current_majorver >= 5) {
  5812. $result[$format] = true;
  5813. return true;
  5814. } else {
  5815. $result[$format] = false;
  5816. return false;
  5817. }
  5818. } elseif ($format == 'wmv') {
  5819. //native wmv support
  5820. if ($current_browser == 'Firefox' && $current_majorver >= 4) {
  5821. $result[$format] = true;
  5822. return true;
  5823. } else {
  5824. $result[$format] = false;
  5825. return false;
  5826. }
  5827. } elseif ($format == 'webm') {
  5828. //native webm support (TODO:check IE9, Chrome9, Android)
  5829. if (($current_browser == 'Firefox' && $current_majorver >= 4) ||
  5830. ($current_browser == 'Opera' && $current_majorver >= 9) ||
  5831. ($current_browser == 'Internet Explorer' && $current_majorver >= 9) ||
  5832. ($current_browser == 'Chrome' && $current_majorver >= 9) ||
  5833. $current_browser == 'Android'
  5834. ) {
  5835. $result[$format] = true;
  5836. return true;
  5837. } else {
  5838. $result[$format] = false;
  5839. return false;
  5840. }
  5841. } elseif ($format == 'wav') {
  5842. //native wav support (only some codecs !)
  5843. if (($current_browser == 'Firefox' && $current_majorver >= 4) ||
  5844. ($current_browser == 'Safari' && $current_majorver >= 5) ||
  5845. ($current_browser == 'Opera' && $current_majorver >= 9) ||
  5846. ($current_browser == 'Internet Explorer' && $current_majorver >= 9) ||
  5847. ($current_browser == 'Chrome' && $current_majorver > 9) ||
  5848. $current_browser == 'Android' ||
  5849. $current_browser == 'iPhone'
  5850. ) {
  5851. $result[$format] = true;
  5852. return true;
  5853. } else {
  5854. $result[$format] = false;
  5855. return false;
  5856. }
  5857. } elseif ($format == 'mid' || $format == 'kar') {
  5858. //native midi support (TODO:check Android)
  5859. if ($current_browser == 'Opera' && $current_majorver >= 9 || $current_browser == 'Android') {
  5860. $result[$format] = true;
  5861. return true;
  5862. } else {
  5863. $result[$format] = false;
  5864. return false;
  5865. }
  5866. } elseif ($format == 'wma') {
  5867. //native wma support
  5868. if ($current_browser == 'Firefox' && $current_majorver >= 4) {
  5869. $result[$format] = true;
  5870. return true;
  5871. } else {
  5872. $result[$format] = false;
  5873. return false;
  5874. }
  5875. } elseif ($format == 'au') {
  5876. //native au support
  5877. if ($current_browser == 'Safari' && $current_majorver >= 5) {
  5878. $result[$format] = true;
  5879. return true;
  5880. } else {
  5881. $result[$format] = false;
  5882. return false;
  5883. }
  5884. } elseif ($format == 'mp3') {
  5885. //native mp3 support (TODO:check Android, iPhone)
  5886. if (($current_browser == 'Safari' && $current_majorver >= 5) ||
  5887. ($current_browser == 'Chrome' && $current_majorver >= 6) ||
  5888. ($current_browser == 'Internet Explorer' && $current_majorver >= 9) ||
  5889. $current_browser == 'Android' ||
  5890. $current_browser == 'iPhone' ||
  5891. $current_browser == 'Firefox'
  5892. ) {
  5893. $result[$format] = true;
  5894. return true;
  5895. } else {
  5896. $result[$format] = false;
  5897. return false;
  5898. }
  5899. } elseif ($format == 'autocapitalize') {
  5900. // Help avoiding showing the autocapitalize option if the browser doesn't
  5901. // support it: this attribute is against the HTML5 standard
  5902. if ($current_browser == 'Safari' || $current_browser == 'iPhone') {
  5903. return true;
  5904. } else {
  5905. return false;
  5906. }
  5907. } elseif ($format == "check_browser") {
  5908. $array_check_browser = array($current_browser, $current_majorver);
  5909. return $array_check_browser;
  5910. } else {
  5911. $result[$format] = false;
  5912. return false;
  5913. }
  5914. }
  5915. /**
  5916. * This function checks if exist path and file browscap.ini
  5917. * In order for this to work, your browscap configuration setting in php.ini
  5918. * must point to the correct location of the browscap.ini file on your system
  5919. * http://php.net/manual/en/function.get-browser.php
  5920. *
  5921. * @return bool
  5922. *
  5923. * @author Juan Carlos Raña Trabado
  5924. */
  5925. function api_check_browscap()
  5926. {
  5927. $setting = ini_get('browscap');
  5928. if ($setting) {
  5929. $browser = get_browser($_SERVER['HTTP_USER_AGENT'], true);
  5930. if (strpos($setting, 'browscap.ini') && !empty($browser)) {
  5931. return true;
  5932. }
  5933. }
  5934. return false;
  5935. }
  5936. /**
  5937. * Returns the <script> HTML tag
  5938. */
  5939. function api_get_js($file)
  5940. {
  5941. return '<script type="text/javascript" src="'.api_get_path(WEB_LIBRARY_PATH).'javascript/'.$file.'"></script>'."\n";
  5942. }
  5943. /**
  5944. * Returns the <script> HTML tag
  5945. * @return string
  5946. */
  5947. function api_get_asset($file)
  5948. {
  5949. return '<script type="text/javascript" src="'.api_get_path(WEB_PUBLIC_PATH).'assets/'.$file.'"></script>'."\n";
  5950. }
  5951. /**
  5952. * Returns the <script> HTML tag
  5953. * @return string
  5954. */
  5955. function api_get_css_asset($file, $media = 'screen')
  5956. {
  5957. return '<link href="'.api_get_path(WEB_PUBLIC_PATH).'assets/'.$file.'" rel="stylesheet" media="'.$media.'" type="text/css" />'."\n";
  5958. }
  5959. /**
  5960. * Returns the <link> HTML tag
  5961. * @param string $file
  5962. */
  5963. function api_get_css($file, $media = 'screen')
  5964. {
  5965. return '<link href="'.$file.'" rel="stylesheet" media="'.$media.'" type="text/css" />'."\n";
  5966. }
  5967. /**
  5968. * Returns the js header to include the jquery library
  5969. */
  5970. function api_get_jquery_js()
  5971. {
  5972. return api_get_asset('jquery/dist/jquery.min.js');
  5973. }
  5974. /**
  5975. * Returns the jquery path
  5976. * @return string
  5977. */
  5978. function api_get_jquery_web_path()
  5979. {
  5980. return api_get_path(WEB_PUBLIC_PATH).'assets/jquery/dist/jquery.min.js';
  5981. }
  5982. /**
  5983. * @return string
  5984. */
  5985. function api_get_jquery_ui_js_web_path()
  5986. {
  5987. return api_get_path(WEB_PUBLIC_PATH).'assets/jquery-ui/jquery-ui.min.js';
  5988. }
  5989. /**
  5990. * @return string
  5991. */
  5992. function api_get_jquery_ui_css_web_path()
  5993. {
  5994. return api_get_path(WEB_PUBLIC_PATH).'assets/jquery-ui/themes/smoothness/jquery-ui.min.css';
  5995. }
  5996. /**
  5997. * Returns the jquery-ui library js headers
  5998. * @param bool add the jqgrid library
  5999. * @return string html tags
  6000. *
  6001. */
  6002. function api_get_jquery_ui_js($include_jqgrid = false)
  6003. {
  6004. $libraries = [];
  6005. if ($include_jqgrid) {
  6006. $libraries[] = 'jqgrid';
  6007. }
  6008. return api_get_jquery_libraries_js($libraries);
  6009. }
  6010. function api_get_jqgrid_js()
  6011. {
  6012. return api_get_jquery_libraries_js(array('jqgrid'));
  6013. }
  6014. /**
  6015. * Returns the jquery library js and css headers
  6016. *
  6017. * @param array list of jquery libraries supported jquery-ui, jqgrid
  6018. * @param bool add the jquery library
  6019. * @return string html tags
  6020. *
  6021. */
  6022. function api_get_jquery_libraries_js($libraries)
  6023. {
  6024. $js = '';
  6025. $js_path = api_get_path(WEB_LIBRARY_PATH).'javascript/';
  6026. //jqgrid js and css
  6027. if (in_array('jqgrid', $libraries)) {
  6028. $languaje = 'en';
  6029. $platform_isocode = strtolower(api_get_language_isocode());
  6030. //languages supported by jqgrid see files in main/inc/lib/javascript/jqgrid/js/i18n
  6031. $jqgrid_langs = array(
  6032. 'bg', 'bg1251', 'cat', 'cn', 'cs', 'da', 'de', 'el', 'en', 'es', 'fa', 'fi', 'fr', 'gl', 'he', 'hu', 'is', 'it', 'ja', 'nl', 'no', 'pl', 'pt-br', 'pt', 'ro', 'ru', 'sk', 'sr', 'sv', 'tr', 'ua'
  6033. );
  6034. if (in_array($platform_isocode, $jqgrid_langs)) {
  6035. $languaje = $platform_isocode;
  6036. }
  6037. //$js .= '<link rel="stylesheet" href="'.$js_path.'jqgrid/css/ui.jqgrid.css" type="text/css">';
  6038. $js .= api_get_css($js_path.'jqgrid/css/ui.jqgrid.css');
  6039. $js .= api_get_js('jqgrid/js/i18n/grid.locale-'.$languaje.'.js');
  6040. $js .= api_get_js('jqgrid/js/jquery.jqGrid.min.js');
  6041. }
  6042. //Document multiple upload funcionality
  6043. if (in_array('jquery-upload', $libraries)) {
  6044. $js .= api_get_asset('blueimp-load-image/js/load-image.all.min.js');
  6045. $js .= api_get_asset('blueimp-canvas-to-blob/js/canvas-to-blob.min.js');
  6046. $js .= api_get_asset('jquery-file-upload/js/jquery.iframe-transport.js');
  6047. $js .= api_get_asset('jquery-file-upload/js/jquery.fileupload.js');
  6048. $js .= api_get_asset('jquery-file-upload/js/jquery.fileupload-process.js');
  6049. $js .= api_get_asset('jquery-file-upload/js/jquery.fileupload-image.js');
  6050. $js .= api_get_asset('jquery-file-upload/js/jquery.fileupload-audio.js');
  6051. $js .= api_get_asset('jquery-file-upload/js/jquery.fileupload-video.js');
  6052. $js .= api_get_asset('jquery-file-upload/js/jquery.fileupload-validate.js');
  6053. $js .= api_get_css(api_get_path(WEB_PUBLIC_PATH).'assets/jquery-file-upload/css/jquery.fileupload.css');
  6054. $js .= api_get_css(api_get_path(WEB_PUBLIC_PATH).'assets/jquery-file-upload/css/jquery.fileupload-ui.css');
  6055. }
  6056. // jquery datepicker
  6057. if (in_array('datepicker', $libraries)) {
  6058. $languaje = 'en-GB';
  6059. $platform_isocode = strtolower(api_get_language_isocode());
  6060. // languages supported by jqgrid see files in main/inc/lib/javascript/jqgrid/js/i18n
  6061. $datapicker_langs = array(
  6062. 'af', 'ar', 'ar-DZ', 'az', 'bg', 'bs', 'ca', 'cs', 'cy-GB', 'da', 'de', 'el', 'en-AU', 'en-GB', 'en-NZ', 'eo', 'es', 'et', 'eu', 'fa', 'fi', 'fo', 'fr', 'fr-CH', 'gl', 'he', 'hi', 'hr', 'hu', 'hy', 'id', 'is', 'it', 'ja', 'ka', 'kk', 'km', 'ko', 'lb', 'lt', 'lv', 'mk', 'ml', 'ms', 'nl', 'nl-BE', 'no', 'pl', 'pt', 'pt-BR', 'rm', 'ro', 'ru', 'sk', 'sl', 'sq', 'sr', 'sr-SR', 'sv', 'ta', 'th', 'tj', 'tr', 'uk', 'vi', 'zh-CN', 'zh-HK', 'zh-TW'
  6063. );
  6064. if (in_array($platform_isocode, $datapicker_langs)) {
  6065. $languaje = $platform_isocode;
  6066. }
  6067. $js .= api_get_js('jquery-ui/jquery-ui-i18n.min.js');
  6068. $script = '<script>
  6069. $(function(){
  6070. $.datepicker.setDefaults($.datepicker.regional["'.$languaje.'"]);
  6071. $.datepicker.regional["local"] = $.datepicker.regional["'.$languaje.'"];
  6072. });
  6073. </script>
  6074. ';
  6075. $js .= $script;
  6076. }
  6077. return $js;
  6078. }
  6079. /**
  6080. * Returns the course's URL
  6081. *
  6082. * This function relies on api_get_course_info()
  6083. * @param string The course code - optional (takes it from session if not given)
  6084. * @param int The session id - optional (takes it from session if not given)
  6085. * @param integer $session_id
  6086. * @return string|null The URL of the course or null if something does not work
  6087. * @author Julio Montoya <gugli100@gmail.com>
  6088. */
  6089. function api_get_course_url($course_code = null, $session_id = null)
  6090. {
  6091. if (empty($course_code)) {
  6092. $course_info = api_get_course_info();
  6093. } else {
  6094. $course_info = api_get_course_info($course_code);
  6095. }
  6096. if (empty($session_id)) {
  6097. $session_url = '?id_session='.api_get_session_id();
  6098. } else {
  6099. $session_url = '?id_session='.intval($session_id);
  6100. }
  6101. /*
  6102. if (empty($group_id)) {
  6103. $group_url = '&gidReq='.api_get_group_id();
  6104. } else {
  6105. $group_url = '&gidReq='.intval($group_id);
  6106. }*/
  6107. if (!empty($course_info['path'])) {
  6108. return api_get_path(WEB_COURSE_PATH).$course_info['path'].'/index.php'.$session_url;
  6109. }
  6110. return null;
  6111. }
  6112. /**
  6113. *
  6114. * Check if the current portal has the $_configuration['multiple_access_urls'] parameter on
  6115. * @return bool true if multi site is enabled
  6116. *
  6117. **/
  6118. function api_get_multiple_access_url()
  6119. {
  6120. global $_configuration;
  6121. if (isset($_configuration['multiple_access_urls']) && $_configuration['multiple_access_urls']) {
  6122. return true;
  6123. }
  6124. return false;
  6125. }
  6126. /**
  6127. * @return bool
  6128. */
  6129. function api_is_multiple_url_enabled()
  6130. {
  6131. return api_get_multiple_access_url();
  6132. }
  6133. /**
  6134. * Returns a md5 unique id
  6135. * @todo add more parameters
  6136. */
  6137. function api_get_unique_id()
  6138. {
  6139. $id = md5(time().uniqid().api_get_user_id().api_get_course_id().api_get_session_id());
  6140. return $id;
  6141. }
  6142. /**
  6143. * Get home path
  6144. * @return string
  6145. */
  6146. function api_get_home_path()
  6147. {
  6148. // FIX : Start the routing determination from central path definition
  6149. $home = api_get_path(SYS_HOME_PATH);
  6150. if (api_get_multiple_access_url()) {
  6151. $access_url_id = api_get_current_access_url_id();
  6152. $url_info = api_get_access_url($access_url_id);
  6153. $url = api_remove_trailing_slash(preg_replace('/https?:\/\//i', '', $url_info['url']));
  6154. $clean_url = api_replace_dangerous_char($url);
  6155. $clean_url = str_replace('/', '-', $clean_url);
  6156. $clean_url .= '/';
  6157. if ($clean_url != 'localhost/') {
  6158. // means that the multiple URL was not well configured we don't rename the $home variable
  6159. return "{$home}{$clean_url}";
  6160. }
  6161. }
  6162. return $home;
  6163. }
  6164. /**
  6165. *
  6166. * @param int Course id
  6167. * @param int tool id: TOOL_QUIZ, TOOL_FORUM, TOOL_STUDENTPUBLICATION, TOOL_LEARNPATH
  6168. * @param int the item id (tool id, exercise id, lp id)
  6169. * @return bool
  6170. */
  6171. function api_resource_is_locked_by_gradebook($item_id, $link_type, $course_code = null)
  6172. {
  6173. if (api_is_platform_admin()) {
  6174. return false;
  6175. }
  6176. if (api_get_setting('gradebook_locking_enabled') == 'true') {
  6177. if (empty($course_code)) {
  6178. $course_code = api_get_course_id();
  6179. }
  6180. $table = Database::get_main_table(TABLE_MAIN_GRADEBOOK_LINK);
  6181. $item_id = intval($item_id);
  6182. $link_type = intval($link_type);
  6183. $course_code = Database::escape_string($course_code);
  6184. $sql = "SELECT locked FROM $table
  6185. WHERE locked = 1 AND ref_id = $item_id AND type = $link_type AND course_code = '$course_code' ";
  6186. $result = Database::query($sql);
  6187. if (Database::num_rows($result)) {
  6188. return true;
  6189. }
  6190. }
  6191. return false;
  6192. }
  6193. /**
  6194. * Blocks a page if the item was added in a gradebook
  6195. *
  6196. * @param int exercise id, work id, thread id,
  6197. * @param int LINK_EXERCISE, LINK_STUDENTPUBLICATION, LINK_LEARNPATH LINK_FORUM_THREAD, LINK_ATTENDANCE
  6198. * see gradebook/lib/be/linkfactory
  6199. * @param string course code
  6200. * @return false|null
  6201. */
  6202. function api_block_course_item_locked_by_gradebook($item_id, $link_type, $course_code = null)
  6203. {
  6204. if (api_is_platform_admin()) {
  6205. return false;
  6206. }
  6207. if (api_resource_is_locked_by_gradebook($item_id, $link_type, $course_code)) {
  6208. $message = Display::return_message(get_lang('ResourceLockedByGradebook'), 'warning');
  6209. api_not_allowed(true, $message);
  6210. }
  6211. }
  6212. /**
  6213. * Checks the PHP version installed is enough to run Chamilo
  6214. * @param string Include path (used to load the error page)
  6215. * @return void
  6216. */
  6217. function api_check_php_version($my_inc_path = null)
  6218. {
  6219. if (!function_exists('version_compare') || version_compare(phpversion(), REQUIRED_PHP_VERSION, '<')) {
  6220. $global_error_code = 1;
  6221. // Incorrect PHP version
  6222. $global_page = $my_inc_path.'global_error_message.inc.php';
  6223. if (file_exists($global_page)) {
  6224. require $global_page;
  6225. }
  6226. exit;
  6227. }
  6228. }
  6229. /**
  6230. * Checks whether the Archive directory is present and writeable. If not,
  6231. * prints a warning message.
  6232. */
  6233. function api_check_archive_dir()
  6234. {
  6235. if (is_dir(api_get_path(SYS_ARCHIVE_PATH)) && !is_writable(api_get_path(SYS_ARCHIVE_PATH))) {
  6236. $message = Display::return_message(get_lang('ArchivesDirectoryNotWriteableContactAdmin'), 'warning');
  6237. api_not_allowed(true, $message);
  6238. }
  6239. }
  6240. /**
  6241. * Returns an array of global configuration settings which should be ignored
  6242. * when printing the configuration settings screens
  6243. * @return array Array of strings, each identifying one of the excluded settings
  6244. */
  6245. function api_get_locked_settings()
  6246. {
  6247. return array(
  6248. 'server_type',
  6249. 'permanently_remove_deleted_files',
  6250. 'account_valid_duration',
  6251. 'service_ppt2lp',
  6252. 'wcag_anysurfer_public_pages',
  6253. 'upload_extensions_list_type',
  6254. 'upload_extensions_blacklist',
  6255. 'upload_extensions_whitelist',
  6256. 'upload_extensions_skip',
  6257. 'upload_extensions_replace_by',
  6258. 'hide_dltt_markup',
  6259. 'split_users_upload_directory',
  6260. 'permissions_for_new_directories',
  6261. 'permissions_for_new_files',
  6262. 'platform_charset',
  6263. 'ldap_description',
  6264. 'cas_activate',
  6265. 'cas_server',
  6266. 'cas_server_uri',
  6267. 'cas_port',
  6268. 'cas_protocol',
  6269. 'cas_add_user_activate',
  6270. 'update_user_info_cas_with_ldap',
  6271. 'languagePriority1',
  6272. 'languagePriority2',
  6273. 'languagePriority3',
  6274. 'languagePriority4',
  6275. 'login_is_email',
  6276. 'chamilo_database_version'
  6277. );
  6278. }
  6279. /**
  6280. * Checks if the user is corrently logged in. Returns the user ID if he is, or
  6281. * false if he isn't. If the user ID is given and is an integer, then the same
  6282. * ID is simply returned
  6283. * @param integer User ID
  6284. * @return boolean Integer User ID is logged in, or false otherwise
  6285. */
  6286. function api_user_is_login($user_id = null)
  6287. {
  6288. $user_id = empty($user_id) ? api_get_user_id() : intval($user_id);
  6289. return $user_id && !api_is_anonymous();
  6290. }
  6291. /**
  6292. * Guess the real ip for register in the database, even in reverse proxy cases.
  6293. * To be recognized, the IP has to be found in either $_SERVER['REMOTE_ADDR'] or
  6294. * in $_SERVER['HTTP_X_FORWARDED_FOR'], which is in common use with rproxies.
  6295. * @return string the user's real ip (unsafe - escape it before inserting to db)
  6296. * @author Jorge Frisancho Jibaja <jrfdeft@gmail.com>, USIL - Some changes to allow the use of real IP using reverse proxy
  6297. * @version CEV CHANGE 24APR2012
  6298. */
  6299. function api_get_real_ip()
  6300. {
  6301. // Guess the IP if behind a reverse proxy
  6302. global $debug;
  6303. $ip = trim($_SERVER['REMOTE_ADDR']);
  6304. if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
  6305. if (preg_match('/,/', $_SERVER['HTTP_X_FORWARDED_FOR'])) {
  6306. @list($ip1, $ip2) = @explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
  6307. } else {
  6308. $ip1 = $_SERVER['HTTP_X_FORWARDED_FOR'];
  6309. }
  6310. $ip = trim($ip1);
  6311. }
  6312. if (!empty($debug)) error_log('Real IP: '.$ip);
  6313. return $ip;
  6314. }
  6315. /**
  6316. * Checks whether an IP is included inside an IP range
  6317. * @param string IP address
  6318. * @param string IP range
  6319. * @param string $ip
  6320. * @return bool True if IP is in the range, false otherwise
  6321. * @author claudiu at cnixs dot com on http://www.php.net/manual/fr/ref.network.php#55230
  6322. * @author Yannick Warnier for improvements and managment of multiple ranges
  6323. * @todo check for IPv6 support
  6324. */
  6325. function api_check_ip_in_range($ip, $range)
  6326. {
  6327. if (empty($ip) or empty($range)) {
  6328. return false;
  6329. }
  6330. $ip_ip = ip2long($ip);
  6331. // divide range param into array of elements
  6332. if (strpos($range, ',') !== false) {
  6333. $ranges = explode(',', $range);
  6334. } else {
  6335. $ranges = array($range);
  6336. }
  6337. foreach ($ranges as $range) {
  6338. $range = trim($range);
  6339. if (empty($range)) { continue; }
  6340. if (strpos($range, '/') === false) {
  6341. if (strcmp($ip, $range) === 0) {
  6342. return true; // there is a direct IP match, return OK
  6343. }
  6344. continue; //otherwise, get to the next range
  6345. }
  6346. // the range contains a "/", so analyse completely
  6347. list ($net, $mask) = explode("/", $range);
  6348. $ip_net = ip2long($net);
  6349. // mask binary magic
  6350. $ip_mask = ~((1 << (32 - $mask)) - 1);
  6351. $ip_ip_net = $ip_ip & $ip_mask;
  6352. if ($ip_ip_net == $ip_net) {
  6353. return true;
  6354. }
  6355. }
  6356. return false;
  6357. }
  6358. function api_check_user_access_to_legal($course_visibility)
  6359. {
  6360. $course_visibility_list = array(COURSE_VISIBILITY_OPEN_WORLD, COURSE_VISIBILITY_OPEN_PLATFORM);
  6361. return in_array($course_visibility, $course_visibility_list) || api_is_drh();
  6362. }
  6363. /**
  6364. * Checks if the global chat is enabled or not
  6365. *
  6366. * @return bool
  6367. */
  6368. function api_is_global_chat_enabled()
  6369. {
  6370. return
  6371. !api_is_anonymous() &&
  6372. api_get_setting('allow_global_chat') == 'true' &&
  6373. api_get_setting('allow_social_tool') == 'true';
  6374. }
  6375. /**
  6376. * @todo Fix tool_visible_by_default_at_creation labels
  6377. * @todo Add sessionId parameter to avoid using context
  6378. *
  6379. * @param int $item_id
  6380. * @param int $tool_id
  6381. * @param int $group_id id
  6382. * @param array $courseInfo
  6383. * @param int $sessionId
  6384. * @param int $userId
  6385. */
  6386. function api_set_default_visibility(
  6387. $item_id,
  6388. $tool_id,
  6389. $group_id = 0,
  6390. $courseInfo = [],
  6391. $sessionId = 0,
  6392. $userId = 0
  6393. ) {
  6394. $courseInfo = empty($courseInfo) ? api_get_course_info() : $courseInfo;
  6395. $courseId = $courseInfo['real_id'];
  6396. $courseCode = $courseInfo['code'];
  6397. $sessionId = empty($sessionId) ? api_get_session_id() : $sessionId;
  6398. $userId = empty($userId) ? api_get_user_id() : $userId;
  6399. if (empty($group_id)) {
  6400. $group_id = api_get_group_id();
  6401. }
  6402. $groupInfo = GroupManager::get_group_properties($group_id);
  6403. $original_tool_id = $tool_id;
  6404. switch ($tool_id) {
  6405. case TOOL_LINK:
  6406. case TOOL_LINK_CATEGORY:
  6407. $tool_id = 'links';
  6408. break;
  6409. case TOOL_DOCUMENT:
  6410. $tool_id = 'documents';
  6411. break;
  6412. case TOOL_LEARNPATH:
  6413. $tool_id = 'learning';
  6414. break;
  6415. case TOOL_ANNOUNCEMENT:
  6416. $tool_id = 'announcements';
  6417. break;
  6418. case TOOL_FORUM:
  6419. case TOOL_FORUM_CATEGORY:
  6420. case TOOL_FORUM_THREAD:
  6421. $tool_id = 'forums';
  6422. break;
  6423. case TOOL_QUIZ:
  6424. $tool_id = 'quiz';
  6425. break;
  6426. }
  6427. $setting = api_get_setting('tool_visible_by_default_at_creation');
  6428. if (isset($setting[$tool_id])) {
  6429. $visibility = 'invisible';
  6430. if ($setting[$tool_id] == 'true') {
  6431. $visibility = 'visible';
  6432. }
  6433. // Read the portal and course default visibility
  6434. if ($tool_id == 'documents') {
  6435. $visibility = DocumentManager::getDocumentDefaultVisibility($courseCode);
  6436. }
  6437. api_item_property_update(
  6438. $courseInfo,
  6439. $original_tool_id,
  6440. $item_id,
  6441. $visibility,
  6442. $userId,
  6443. $groupInfo,
  6444. null,
  6445. null,
  6446. null,
  6447. $sessionId
  6448. );
  6449. // Fixes default visibility for tests
  6450. switch ($original_tool_id) {
  6451. case TOOL_QUIZ:
  6452. if (empty($sessionId)) {
  6453. $objExerciseTmp = new Exercise($courseId);
  6454. $objExerciseTmp->read($item_id);
  6455. if ($visibility == 'visible') {
  6456. $objExerciseTmp->enable();
  6457. $objExerciseTmp->save();
  6458. } else {
  6459. $objExerciseTmp->disable();
  6460. $objExerciseTmp->save();
  6461. }
  6462. }
  6463. break;
  6464. }
  6465. }
  6466. }
  6467. /**
  6468. * @return string
  6469. */
  6470. function api_get_security_key()
  6471. {
  6472. return api_get_configuration_value('security_key');
  6473. }
  6474. /**
  6475. * @param int $user_id
  6476. * @param int $courseId
  6477. * @param int $session_id
  6478. * @return array
  6479. */
  6480. function api_detect_user_roles($user_id, $courseId, $session_id = 0)
  6481. {
  6482. $user_roles = [];
  6483. $courseInfo = api_get_course_info_by_id($courseId);
  6484. $course_code = $courseInfo['code'];
  6485. $url_id = api_get_current_access_url_id();
  6486. if (api_is_platform_admin_by_id($user_id, $url_id)) {
  6487. $user_roles[] = PLATFORM_ADMIN;
  6488. }
  6489. /*if (api_is_drh()) {
  6490. $user_roles[] = DRH;
  6491. }*/
  6492. if (!empty($session_id)) {
  6493. if (SessionManager::user_is_general_coach($user_id, $session_id)) {
  6494. $user_roles[] = SESSION_GENERAL_COACH;
  6495. }
  6496. }
  6497. if (!empty($course_code)) {
  6498. if (empty($session_id)) {
  6499. if (CourseManager::is_course_teacher($user_id, $course_code)) {
  6500. $user_roles[] = COURSEMANAGER;
  6501. }
  6502. if (CourseManager::get_tutor_in_course_status($user_id, $courseInfo['real_id'])) {
  6503. $user_roles[] = COURSE_TUTOR;
  6504. }
  6505. if (CourseManager::is_user_subscribed_in_course($user_id, $course_code)) {
  6506. $user_roles[] = COURSE_STUDENT;
  6507. }
  6508. } else {
  6509. $user_status_in_session = SessionManager::get_user_status_in_course_session(
  6510. $user_id,
  6511. $courseId,
  6512. $session_id
  6513. );
  6514. if (!empty($user_status_in_session)) {
  6515. if ($user_status_in_session == 0) {
  6516. $user_roles[] = SESSION_STUDENT;
  6517. }
  6518. if ($user_status_in_session == 2) {
  6519. $user_roles[] = SESSION_COURSE_COACH;
  6520. }
  6521. }
  6522. /*if (api_is_course_session_coach($user_id, $course_code, $session_id)) {
  6523. $user_roles[] = SESSION_COURSE_COACH;
  6524. }*/
  6525. }
  6526. }
  6527. return $user_roles;
  6528. }
  6529. /**
  6530. * @param int $courseId
  6531. * @param int $session_id
  6532. * @return bool
  6533. */
  6534. function api_coach_can_edit_view_results($courseId = null, $session_id = null)
  6535. {
  6536. if (api_is_platform_admin()) {
  6537. return true;
  6538. }
  6539. $user_id = api_get_user_id();
  6540. if (empty($courseId)) {
  6541. $courseId = api_get_course_int_id();
  6542. }
  6543. if (empty($session_id)) {
  6544. $session_id = api_get_session_id();
  6545. }
  6546. $roles = api_detect_user_roles($user_id, $courseId, $session_id);
  6547. if (in_array(SESSION_COURSE_COACH, $roles)) {
  6548. //return api_get_setting('session_tutor_reports_visibility') == 'true';
  6549. return true;
  6550. } else {
  6551. if (in_array(COURSEMANAGER, $roles)) {
  6552. return true;
  6553. }
  6554. return false;
  6555. }
  6556. }
  6557. function api_get_js_simple($file)
  6558. {
  6559. return '<script type="text/javascript" src="'.$file.'"></script>'."\n";
  6560. }
  6561. function api_set_settings_and_plugins()
  6562. {
  6563. global $_configuration;
  6564. $_setting = [];
  6565. $_plugins = [];
  6566. // access_url == 1 is the default chamilo location
  6567. $settings_by_access_list = [];
  6568. $access_url_id = api_get_current_access_url_id();
  6569. if ($access_url_id != 1) {
  6570. $url_info = api_get_access_url($_configuration['access_url']);
  6571. if ($url_info['active'] == 1) {
  6572. $settings_by_access = & api_get_settings(null, 'list', $_configuration['access_url'], 1);
  6573. foreach ($settings_by_access as & $row) {
  6574. if (empty($row['variable'])) {
  6575. $row['variable'] = 0;
  6576. }
  6577. if (empty($row['subkey'])) {
  6578. $row['subkey'] = 0;
  6579. }
  6580. if (empty($row['category'])) {
  6581. $row['category'] = 0;
  6582. }
  6583. $settings_by_access_list[$row['variable']][$row['subkey']][$row['category']] = $row;
  6584. }
  6585. }
  6586. }
  6587. $result = api_get_settings(null, 'list', 1);
  6588. foreach ($result as & $row) {
  6589. if ($access_url_id != 1) {
  6590. if ($url_info['active'] == 1) {
  6591. $var = empty($row['variable']) ? 0 : $row['variable'];
  6592. $subkey = empty($row['subkey']) ? 0 : $row['subkey'];
  6593. $category = empty($row['category']) ? 0 : $row['category'];
  6594. }
  6595. if ($row['access_url_changeable'] == 1 && $url_info['active'] == 1) {
  6596. if (isset($settings_by_access_list[$var]) &&
  6597. $settings_by_access_list[$var][$subkey][$category]['selected_value'] != '') {
  6598. if ($row['subkey'] == null) {
  6599. $_setting[$row['variable']] = $settings_by_access_list[$var][$subkey][$category]['selected_value'];
  6600. } else {
  6601. $_setting[$row['variable']][$row['subkey']] = $settings_by_access_list[$var][$subkey][$category]['selected_value'];
  6602. }
  6603. } else {
  6604. if ($row['subkey'] == null) {
  6605. $_setting[$row['variable']] = $row['selected_value'];
  6606. } else {
  6607. $_setting[$row['variable']][$row['subkey']] = $row['selected_value'];
  6608. }
  6609. }
  6610. } else {
  6611. if ($row['subkey'] == null) {
  6612. $_setting[$row['variable']] = $row['selected_value'];
  6613. } else {
  6614. $_setting[$row['variable']][$row['subkey']] = $row['selected_value'];
  6615. }
  6616. }
  6617. } else {
  6618. if ($row['subkey'] == null) {
  6619. $_setting[$row['variable']] = $row['selected_value'];
  6620. } else {
  6621. $_setting[$row['variable']][$row['subkey']] = $row['selected_value'];
  6622. }
  6623. }
  6624. }
  6625. $result = api_get_settings('Plugins', 'list', $access_url_id);
  6626. $_plugins = [];
  6627. foreach ($result as & $row) {
  6628. $key = & $row['variable'];
  6629. if (is_string($_setting[$key])) {
  6630. $_setting[$key] = [];
  6631. }
  6632. $_setting[$key][] = $row['selected_value'];
  6633. $_plugins[$key][] = $row['selected_value'];
  6634. }
  6635. $_SESSION['_setting'] = $_setting;
  6636. $_SESSION['_plugins'] = $_plugins;
  6637. }
  6638. /**
  6639. * Tries to set memory limit, if authorized and new limit is higher than current
  6640. * @param string New memory limit
  6641. * @param string $mem
  6642. * @return bool True on success, false on failure or current is higher than suggested
  6643. * @assert (null) === false
  6644. * @assert (-1) === false
  6645. * @assert (0) === true
  6646. * @assert ('1G') === true
  6647. */
  6648. function api_set_memory_limit($mem)
  6649. {
  6650. //if ini_set() not available, this function is useless
  6651. if (!function_exists('ini_set') || is_null($mem) || $mem == -1) {
  6652. return false;
  6653. }
  6654. $memory_limit = ini_get('memory_limit');
  6655. if (api_get_bytes_memory_limit($mem) > api_get_bytes_memory_limit($memory_limit)) {
  6656. ini_set('memory_limit', $mem);
  6657. return true;
  6658. }
  6659. return false;
  6660. }
  6661. /**
  6662. * Gets memory limit in bytes
  6663. * @param string The memory size (128M, 1G, 1000K, etc)
  6664. * @return int
  6665. * @assert (null) === false
  6666. * @assert ('1t') === 1099511627776
  6667. * @assert ('1g') === 1073741824
  6668. * @assert ('1m') === 1048576
  6669. * @assert ('100k') === 102400
  6670. */
  6671. function api_get_bytes_memory_limit($mem)
  6672. {
  6673. $size = strtolower(substr($mem, -1));
  6674. switch ($size) {
  6675. case 't':
  6676. $mem = intval(substr($mem, -1)) * 1024 * 1024 * 1024 * 1024;
  6677. break;
  6678. case 'g':
  6679. $mem = intval(substr($mem, 0, -1)) * 1024 * 1024 * 1024;
  6680. break;
  6681. case 'm':
  6682. $mem = intval(substr($mem, 0, -1)) * 1024 * 1024;
  6683. break;
  6684. case 'k':
  6685. $mem = intval(substr($mem, 0, -1)) * 1024;
  6686. break;
  6687. default:
  6688. // we assume it's integer only
  6689. $mem = intval($mem);
  6690. break;
  6691. }
  6692. return $mem;
  6693. }
  6694. /**
  6695. * Finds all the information about a user from username instead of user id
  6696. *
  6697. * @param string $officialCode
  6698. * @return array $user_info user_id, lastname, firstname, username, email, ...
  6699. * @author Yannick Warnier <yannick.warnier@beeznest.com>
  6700. */
  6701. function api_get_user_info_from_official_code($officialCode)
  6702. {
  6703. if (empty($officialCode)) {
  6704. return false;
  6705. }
  6706. $sql = "SELECT * FROM ".Database::get_main_table(TABLE_MAIN_USER)."
  6707. WHERE official_code ='".Database::escape_string($officialCode)."'";
  6708. $result = Database::query($sql);
  6709. if (Database::num_rows($result) > 0) {
  6710. $result_array = Database::fetch_array($result);
  6711. return _api_format_user($result_array);
  6712. }
  6713. return false;
  6714. }
  6715. /**
  6716. * @param string $usernameInputId
  6717. * @param string $passwordInputId
  6718. * @return null|string
  6719. */
  6720. function api_get_password_checker_js($usernameInputId, $passwordInputId)
  6721. {
  6722. $checkPass = api_get_setting('allow_strength_pass_checker');
  6723. $useStrengthPassChecker = $checkPass === 'true';
  6724. if ($useStrengthPassChecker === false) {
  6725. return null;
  6726. }
  6727. $translations = [
  6728. 'wordLength' => get_lang('PasswordIsTooShort'),
  6729. 'wordNotEmail' => get_lang('YourPasswordCannotBeTheSameAsYourEmail'),
  6730. 'wordSimilarToUsername' => get_lang('YourPasswordCannotContainYourUsername'),
  6731. 'wordTwoCharacterClasses' => get_lang('WordTwoCharacterClasses'),
  6732. 'wordRepetitions' => get_lang('TooManyRepetitions'),
  6733. 'wordSequences' => get_lang('YourPasswordContainsSequences'),
  6734. 'errorList' => get_lang('ErrorsFound'),
  6735. 'veryWeak' => get_lang('PasswordVeryWeak'),
  6736. 'weak' => get_lang('PasswordWeak'),
  6737. 'normal' => get_lang('PasswordNormal'),
  6738. 'medium' => get_lang('PasswordMedium'),
  6739. 'strong' => get_lang('PasswordStrong'),
  6740. 'veryStrong' => get_lang('PasswordVeryStrong')
  6741. ];
  6742. $js = api_get_asset('pwstrength-bootstrap/dist/pwstrength-bootstrap.min.js');
  6743. $js .= "<script>
  6744. var errorMessages = {
  6745. password_to_short : \"" . get_lang('PasswordIsTooShort')."\",
  6746. same_as_username : \"".get_lang('YourPasswordCannotBeTheSameAsYourUsername')."\"
  6747. };
  6748. $(document).ready(function() {
  6749. var lang = ".json_encode($translations).";
  6750. var options = {
  6751. onLoad : function () {
  6752. //$('#messages').text('Start typing password');
  6753. },
  6754. onKeyUp: function (evt) {
  6755. $(evt.target).pwstrength('outputErrorList');
  6756. },
  6757. errorMessages : errorMessages,
  6758. viewports: {
  6759. progress: '#password_progress',
  6760. verdict: '#password-verdict',
  6761. errors: '#password-errors'
  6762. },
  6763. usernameField: '$usernameInputId'
  6764. };
  6765. options.i18n = {
  6766. t: function (key) {
  6767. var result = lang[key];
  6768. return result === key ? '' : result; // This assumes you return the
  6769. }
  6770. };
  6771. $('".$passwordInputId."').pwstrength(options);
  6772. });
  6773. </script>";
  6774. return $js;
  6775. }
  6776. /**
  6777. * create an user extra field called 'captcha_blocked_until_date'
  6778. * @param string $username
  6779. * @return bool
  6780. */
  6781. function api_block_account_captcha($username)
  6782. {
  6783. $userInfo = api_get_user_info_from_username($username);
  6784. if (empty($userInfo)) {
  6785. return false;
  6786. }
  6787. $minutesToBlock = api_get_setting('captcha_time_to_block');
  6788. $time = time() + $minutesToBlock * 60;
  6789. UserManager::update_extra_field_value(
  6790. $userInfo['user_id'],
  6791. 'captcha_blocked_until_date',
  6792. api_get_utc_datetime($time)
  6793. );
  6794. return true;
  6795. }
  6796. /**
  6797. * @param string $username
  6798. * @return bool
  6799. */
  6800. function api_clean_account_captcha($username)
  6801. {
  6802. $userInfo = api_get_user_info_from_username($username);
  6803. if (empty($userInfo)) {
  6804. return false;
  6805. }
  6806. Session::erase('loginFailedCount');
  6807. UserManager::update_extra_field_value(
  6808. $userInfo['user_id'],
  6809. 'captcha_blocked_until_date',
  6810. null
  6811. );
  6812. return true;
  6813. }
  6814. /**
  6815. * @param string $username
  6816. * @return bool
  6817. */
  6818. function api_get_user_blocked_by_captcha($username)
  6819. {
  6820. $userInfo = api_get_user_info_from_username($username);
  6821. if (empty($userInfo)) {
  6822. return false;
  6823. }
  6824. $data = UserManager::get_extra_user_data_by_field(
  6825. $userInfo['user_id'],
  6826. 'captcha_blocked_until_date'
  6827. );
  6828. if (isset($data) && isset($data['captcha_blocked_until_date'])) {
  6829. return $data['captcha_blocked_until_date'];
  6830. }
  6831. return false;
  6832. }
  6833. /**
  6834. * Remove tags from HTML anf return the $in_number_char first non-HTML char
  6835. * Postfix the text with "..." if it has been truncated.
  6836. * @param string $text
  6837. * @param integer $number
  6838. *
  6839. * @return string
  6840. * @author hubert borderiou
  6841. */
  6842. function api_get_short_text_from_html($text, $number)
  6843. {
  6844. // Delete script and style tags
  6845. $text = preg_replace('/(<(script|style)\b[^>]*>).*?(<\/\2>)/is', "$1$3", $text);
  6846. $text = api_html_entity_decode($text);
  6847. $out_res = api_remove_tags_with_space($text, false);
  6848. $postfix = "...";
  6849. if (strlen($out_res) > $number) {
  6850. $out_res = substr($out_res, 0, $number).$postfix;
  6851. }
  6852. return $out_res;
  6853. }
  6854. /**
  6855. * Replace tags with a space in a text.
  6856. * If $in_double_quote_replace, replace " with '' (for HTML attribute purpose, for exemple)
  6857. * @return string
  6858. * @author hubert borderiou
  6859. */
  6860. function api_remove_tags_with_space($in_html, $in_double_quote_replace = true)
  6861. {
  6862. $out_res = $in_html;
  6863. if ($in_double_quote_replace) {
  6864. $out_res = str_replace('"', "''", $out_res);
  6865. }
  6866. // avoid text stuck together when tags are removed, adding a space after >
  6867. $out_res = str_replace(">", "> ", $out_res);
  6868. $out_res = strip_tags($out_res);
  6869. return $out_res;
  6870. }
  6871. /**
  6872. * If true, the drh can access all content (courses, users) inside a session
  6873. * @return bool
  6874. */
  6875. function api_drh_can_access_all_session_content()
  6876. {
  6877. $value = api_get_setting('drh_can_access_all_session_content');
  6878. return $value === 'true';
  6879. }
  6880. /**
  6881. * @param string $tool
  6882. * @param string $setting
  6883. * @param integer $defaultValue
  6884. * @return string
  6885. */
  6886. function api_get_default_tool_setting($tool, $setting, $defaultValue)
  6887. {
  6888. global $_configuration;
  6889. if (isset($_configuration[$tool]) &&
  6890. isset($_configuration[$tool]['default_settings']) &&
  6891. isset($_configuration[$tool]['default_settings'][$setting])
  6892. ) {
  6893. return $_configuration[$tool]['default_settings'][$setting];
  6894. }
  6895. return $defaultValue;
  6896. }
  6897. /**
  6898. * Checks if user can login as another user
  6899. *
  6900. * @param int $loginAsUserId the user id to log in
  6901. * @param int $userId my user id
  6902. * @return bool
  6903. */
  6904. function api_can_login_as($loginAsUserId, $userId = null)
  6905. {
  6906. if (empty($userId)) {
  6907. $userId = api_get_user_id();
  6908. }
  6909. if ($loginAsUserId == $userId) {
  6910. return false;
  6911. }
  6912. if (empty($loginAsUserId)) {
  6913. return false;
  6914. }
  6915. if ($loginAsUserId != strval(intval($loginAsUserId))) {
  6916. return false;
  6917. }
  6918. // Check if the user to login is an admin
  6919. if (api_is_platform_admin_by_id($loginAsUserId)) {
  6920. // Only super admins can login to admin accounts
  6921. if (!api_global_admin_can_edit_admin($loginAsUserId)) {
  6922. return false;
  6923. }
  6924. }
  6925. $userInfo = api_get_user_info($userId);
  6926. $isDrh = function() use($loginAsUserId) {
  6927. if (api_is_drh()) {
  6928. if (api_drh_can_access_all_session_content()) {
  6929. $users = SessionManager::getAllUsersFromCoursesFromAllSessionFromStatus(
  6930. 'drh_all',
  6931. api_get_user_id()
  6932. );
  6933. $userList = [];
  6934. if (is_array($users)) {
  6935. foreach ($users as $user) {
  6936. $userList[] = $user['user_id'];
  6937. }
  6938. }
  6939. if (in_array($loginAsUserId, $userList)) {
  6940. return true;
  6941. }
  6942. } else {
  6943. if (api_is_drh() &&
  6944. UserManager::is_user_followed_by_drh($loginAsUserId, api_get_user_id())
  6945. ) {
  6946. return true;
  6947. }
  6948. }
  6949. }
  6950. return false;
  6951. };
  6952. return api_is_platform_admin() || (api_is_session_admin() && $userInfo['status'] == 5) || $isDrh();
  6953. }
  6954. /**
  6955. * @return bool
  6956. */
  6957. function api_is_allowed_in_course()
  6958. {
  6959. if (api_is_platform_admin()) {
  6960. return true;
  6961. }
  6962. return Session::read('is_allowed_in_course');
  6963. }
  6964. /**
  6965. * Set the cookie to go directly to the course code $in_firstpage
  6966. * after login
  6967. * @param string $in_firstpage is the course code of the course to go
  6968. */
  6969. function api_set_firstpage_parameter($in_firstpage)
  6970. {
  6971. setcookie('GotoCourse', $in_firstpage);
  6972. }
  6973. /**
  6974. * Delete the cookie to go directly to the course code $in_firstpage
  6975. * after login
  6976. */
  6977. function api_delete_firstpage_parameter()
  6978. {
  6979. setcookie('GotoCourse', '', time() - 3600);
  6980. }
  6981. /**
  6982. * @return boolean if course_code for direct course access after login is set
  6983. */
  6984. function exist_firstpage_parameter()
  6985. {
  6986. return isset($_COOKIE['GotoCourse']) && $_COOKIE['GotoCourse'] != '';
  6987. }
  6988. /**
  6989. * @return return the course_code of the course where user login
  6990. */
  6991. function api_get_firstpage_parameter()
  6992. {
  6993. return $_COOKIE['GotoCourse'];
  6994. }
  6995. /**
  6996. * Return true on https install
  6997. * @return boolean
  6998. */
  6999. function api_is_https()
  7000. {
  7001. if (!empty($_SERVER['HTTP_X_FORWARDED_PROTO']) &&
  7002. $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https' || !empty($_configuration['force_https_forwarded_proto'])
  7003. ) {
  7004. $isSecured = true;
  7005. } else {
  7006. if (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off') {
  7007. $isSecured = true;
  7008. } else {
  7009. $isSecured = false;
  7010. // last chance
  7011. if (!empty($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] == 443) {
  7012. $isSecured = true;
  7013. }
  7014. }
  7015. }
  7016. return $isSecured;
  7017. }
  7018. /**
  7019. * Return protocol (http or https)
  7020. * @return string
  7021. */
  7022. function api_get_protocol()
  7023. {
  7024. return api_is_https() ? 'https' : 'http';
  7025. }
  7026. /**
  7027. * Return a string where " are replaced with 2 '
  7028. * It is useful when you pass a PHP variable in a Javascript browser dialog
  7029. * e.g. : alert("<?php get_lang('Message') ?>");
  7030. * and message contains character "
  7031. *
  7032. * @param string $in_text
  7033. * @return string
  7034. */
  7035. function convert_double_quote_to_single($in_text)
  7036. {
  7037. return api_preg_replace('/"/', "''", $in_text);
  7038. }
  7039. /**
  7040. * Get origin
  7041. *
  7042. * @param string
  7043. * @return string
  7044. **/
  7045. function api_get_origin()
  7046. {
  7047. $origin = isset($_REQUEST['origin']) ? Security::remove_XSS($_REQUEST['origin']) : '';
  7048. return $origin;
  7049. }
  7050. /**
  7051. * Warns an user that the portal reach certain limit.
  7052. * @param string $limitName
  7053. */
  7054. function api_warn_hosting_contact($limitName)
  7055. {
  7056. $hostingParams = api_get_configuration_value(1);
  7057. $email = null;
  7058. if (!empty($hostingParams)) {
  7059. if (isset($hostingParams['hosting_contact_mail'])) {
  7060. $email = $hostingParams['hosting_contact_mail'];
  7061. }
  7062. }
  7063. if (!empty($email)) {
  7064. $subject = get_lang('HostingWarningReached');
  7065. $body = get_lang('PortalName').': '.api_get_path(WEB_PATH)." \n ";
  7066. $body .= get_lang('PortalLimitType').': '.$limitName." \n ";
  7067. if (isset($hostingParams[$limitName])) {
  7068. $body .= get_lang('Value').': '.$hostingParams[$limitName];
  7069. }
  7070. api_mail_html(null, $email, $subject, $body);
  7071. }
  7072. }
  7073. /**
  7074. * Gets value of a variable from app/config/configuration.php
  7075. * Variables that are not set in the configuration.php file but set elsewhere:
  7076. * - virtual_css_theme_folder (vchamilo plugin)
  7077. * - access_url (global.inc.php)
  7078. * - apc/apc_prefix (global.inc.php)
  7079. *
  7080. * @param string $variable
  7081. *
  7082. * @return bool|mixed
  7083. */
  7084. function api_get_configuration_value($variable)
  7085. {
  7086. global $_configuration;
  7087. // Check the current url id, id = 1 by default
  7088. $urlId = isset($_configuration['access_url']) ? (int) $_configuration['access_url'] : 1;
  7089. $variable = trim($variable);
  7090. // Check if variable exists
  7091. if (isset($_configuration[$variable])) {
  7092. if (is_array($_configuration[$variable])) {
  7093. // Check if it exists for the sub portal
  7094. if (array_key_exists($urlId, $_configuration[$variable])) {
  7095. return $_configuration[$variable][$urlId];
  7096. } else {
  7097. // Try to found element with id = 1 (master portal)
  7098. if (array_key_exists(1, $_configuration[$variable])) {
  7099. return $_configuration[$variable][1];
  7100. }
  7101. }
  7102. }
  7103. return $_configuration[$variable];
  7104. }
  7105. return false;
  7106. }
  7107. /**
  7108. * Returns supported image extensions in the portal
  7109. * @param bool $supportVectors Whether vector images should also be accepted or not
  7110. * @return array Supported image extensions in the portal
  7111. */
  7112. function api_get_supported_image_extensions($supportVectors = true)
  7113. {
  7114. // jpg can also be called jpeg, jpe, jfif and jif. See https://en.wikipedia.org/wiki/JPEG#JPEG_filename_extensions
  7115. $supportedImageExtensions = array('jpg', 'jpeg', 'png', 'gif', 'jpe', 'jfif', 'jif');
  7116. if ($supportVectors) {
  7117. array_push($supportedImageExtensions, 'svg');
  7118. }
  7119. if (version_compare(PHP_VERSION, '5.5.0', '>=')) {
  7120. array_push($supportedImageExtensions, 'webp');
  7121. }
  7122. return $supportedImageExtensions;
  7123. }
  7124. /**
  7125. * This setting changes the registration status for the campus
  7126. *
  7127. * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
  7128. * @version August 2006
  7129. * @param bool $listCampus Whether we authorize
  7130. * @todo the $_settings should be reloaded here. => write api function for this and use this in global.inc.php also.
  7131. */
  7132. function api_register_campus($listCampus = true) {
  7133. $tbl_settings = Database::get_main_table(TABLE_MAIN_SETTINGS_CURRENT);
  7134. $sql = "UPDATE $tbl_settings SET selected_value='true' WHERE variable='registered'";
  7135. Database::query($sql);
  7136. if (!$listCampus) {
  7137. $sql = "UPDATE $tbl_settings SET selected_value='true' WHERE variable='donotlistcampus'";
  7138. Database::query($sql);
  7139. }
  7140. }
  7141. /**
  7142. * Checks whether current user is a student boss
  7143. * @global array $_user
  7144. * @return boolean
  7145. */
  7146. function api_is_student_boss()
  7147. {
  7148. $_user = api_get_user_info();
  7149. return isset($_user['status']) && $_user['status'] == STUDENT_BOSS;
  7150. }
  7151. /**
  7152. * Check whether the user type should be exclude.
  7153. * Such as invited or anonymous users
  7154. * @param boolean $checkDB Optional. Whether check the user status
  7155. * @param int $userId Options. The user id
  7156. *
  7157. * @return boolean
  7158. */
  7159. function api_is_excluded_user_type($checkDB = false, $userId = 0)
  7160. {
  7161. if ($checkDB) {
  7162. $userId = empty($userId) ? api_get_user_id() : intval($userId);
  7163. if ($userId == 0) {
  7164. return true;
  7165. }
  7166. $userInfo = api_get_user_info($userId);
  7167. switch ($userInfo['status']) {
  7168. case INVITEE:
  7169. //no break;
  7170. case ANONYMOUS:
  7171. return true;
  7172. default:
  7173. return false;
  7174. }
  7175. }
  7176. $isInvited = api_is_invitee();
  7177. $isAnonymous = api_is_anonymous();
  7178. if ($isInvited || $isAnonymous) {
  7179. return true;
  7180. }
  7181. return false;
  7182. }
  7183. /**
  7184. * Get the user status to ignore in reports
  7185. * @param string $format Optional. The result type (array or string)
  7186. * @return array|string
  7187. */
  7188. function api_get_users_status_ignored_in_reports($format = 'array')
  7189. {
  7190. $excludedTypes = array(
  7191. INVITEE,
  7192. ANONYMOUS
  7193. );
  7194. if ($format == 'string') {
  7195. return implode(', ', $excludedTypes);
  7196. }
  7197. return $excludedTypes;
  7198. }
  7199. /**
  7200. * Set the Site Use Cookie Warning for 1 year
  7201. */
  7202. function api_set_site_use_cookie_warning_cookie()
  7203. {
  7204. setcookie('ChamiloUsesCookies', 'ok', time() + 31556926);
  7205. }
  7206. /**
  7207. * Return true if the Site Use Cookie Warning Cookie warning exists
  7208. * @return bool
  7209. */
  7210. function api_site_use_cookie_warning_cookie_exist()
  7211. {
  7212. return isset($_COOKIE['ChamiloUsesCookies']);
  7213. }
  7214. /**
  7215. * Given a number of seconds, format the time to show hours, minutes and seconds
  7216. * @param int $time The time in seconds
  7217. * @param string $originFormat Optional. PHP o JS
  7218. * @return string (00h00'00")
  7219. */
  7220. function api_format_time($time, $originFormat = 'php')
  7221. {
  7222. $h = get_lang('h');
  7223. $hours = $time / 3600;
  7224. $mins = ($time % 3600) / 60;
  7225. $secs = ($time % 60);
  7226. if ($time < 0) {
  7227. $hours = 0;
  7228. $mins = 0;
  7229. $secs = 0;
  7230. }
  7231. if ($originFormat == 'js') {
  7232. $formattedTime = trim(sprintf("%02d : %02d : %02d", $hours, $mins, $secs));
  7233. } else {
  7234. $formattedTime = trim(sprintf("%02d$h%02d'%02d\"", $hours, $mins, $secs));
  7235. }
  7236. return $formattedTime;
  7237. }
  7238. /**
  7239. * Create a new empty directory with index.html file
  7240. * @param string $name The new directory name
  7241. * @param string $parentDirectory Directory parent directory name
  7242. * @return boolean Return true if the directory was create. Otherwise return false
  7243. */
  7244. function api_create_protected_dir($name, $parentDirectory)
  7245. {
  7246. $isCreated = false;
  7247. if (!is_writable($parentDirectory)) {
  7248. return false;
  7249. }
  7250. $fullPath = $parentDirectory.api_replace_dangerous_char($name);
  7251. if (mkdir($fullPath, api_get_permissions_for_new_directories(), true)) {
  7252. $fp = fopen($fullPath.'/index.html', 'w');
  7253. if ($fp) {
  7254. if (fwrite($fp, '<html><head></head><body></body></html>')) {
  7255. $isCreated = true;
  7256. }
  7257. }
  7258. fclose($fp);
  7259. }
  7260. return $isCreated;
  7261. }
  7262. /**
  7263. * Sends an HTML email using the phpmailer class (and multipart/alternative to downgrade gracefully)
  7264. * Sender name and email can be specified, if not specified
  7265. * name and email of the platform admin are used
  7266. *
  7267. * @author Bert Vanderkimpen ICT&O UGent
  7268. * @author Yannick Warnier <yannick.warnier@beeznest.com>
  7269. *
  7270. * @param string name of recipient
  7271. * @param string email of recipient
  7272. * @param string email subject
  7273. * @param string email body
  7274. * @param string sender name
  7275. * @param string sender e-mail
  7276. * @param array extra headers in form $headers = array($name => $value) to allow parsing
  7277. * @param array data file (path and filename)
  7278. * @param bool True for attaching a embedded file inside content html (optional)
  7279. * @param array Additional parameters
  7280. * @return integer true if mail was sent
  7281. * @see class.phpmailer.php
  7282. */
  7283. function api_mail_html(
  7284. $recipient_name,
  7285. $recipient_email,
  7286. $subject,
  7287. $message,
  7288. $senderName = '',
  7289. $senderEmail = '',
  7290. $extra_headers = [],
  7291. $data_file = [],
  7292. $embedded_image = false,
  7293. $additionalParameters = []
  7294. ) {
  7295. global $platform_email;
  7296. $mail = new PHPMailer();
  7297. $mail->Mailer = $platform_email['SMTP_MAILER'];
  7298. $mail->Host = $platform_email['SMTP_HOST'];
  7299. $mail->Port = $platform_email['SMTP_PORT'];
  7300. $mail->CharSet = $platform_email['SMTP_CHARSET'];
  7301. // Stay far below SMTP protocol 980 chars limit.
  7302. $mail->WordWrap = 200;
  7303. if ($platform_email['SMTP_AUTH']) {
  7304. $mail->SMTPAuth = 1;
  7305. $mail->Username = $platform_email['SMTP_USER'];
  7306. $mail->Password = $platform_email['SMTP_PASS'];
  7307. if (isset($platform_email['SMTP_SECURE'])) {
  7308. $mail->SMTPSecure = $platform_email['SMTP_SECURE'];
  7309. }
  7310. }
  7311. $mail->SMTPDebug = isset($platform_email['SMTP_DEBUG']) ? $platform_email['SMTP_DEBUG'] : 0;
  7312. // 5 = low, 1 = high
  7313. $mail->Priority = 3;
  7314. $mail->SMTPKeepAlive = true;
  7315. // Default values
  7316. $notification = new Notification();
  7317. $defaultEmail = $notification->getDefaultPlatformSenderEmail();
  7318. $defaultName = $notification->getDefaultPlatformSenderName();
  7319. // If the parameter is set don't use the admin.
  7320. $senderName = !empty($senderName) ? $senderName : $defaultName;
  7321. $senderEmail = !empty($senderEmail) ? $senderEmail : $defaultEmail;
  7322. // Reply to first
  7323. if (isset($extra_headers['reply_to']) && empty($platform_email['SMTP_UNIQUE_REPLY_TO'])) {
  7324. $mail->AddReplyTo(
  7325. $extra_headers['reply_to']['mail'],
  7326. $extra_headers['reply_to']['name']
  7327. );
  7328. // Errors to sender
  7329. $mail->AddCustomHeader('Errors-To: '.$extra_headers['reply_to']['mail']);
  7330. $mail->Sender = $extra_headers['reply_to']['mail'];
  7331. unset($extra_headers['reply_to']);
  7332. } else {
  7333. $mail->AddCustomHeader('Errors-To: '.$defaultEmail);
  7334. }
  7335. //If the SMTP configuration only accept one sender
  7336. if (isset($platform_email['SMTP_UNIQUE_SENDER']) && $platform_email['SMTP_UNIQUE_SENDER']) {
  7337. $senderName = $platform_email['SMTP_FROM_NAME'];
  7338. $senderEmail = $platform_email['SMTP_FROM_EMAIL'];
  7339. $valid = PHPMailer::validateAddress($senderEmail);
  7340. if ($valid) {
  7341. //force-set Sender to $senderEmail, otherwise SetFrom only does it if it is currently empty
  7342. $mail->Sender = $senderEmail;
  7343. }
  7344. }
  7345. $mail->SetFrom($senderEmail, $senderName);
  7346. $mail->Subject = $subject;
  7347. $mail->AltBody = strip_tags(
  7348. str_replace('<br />', "\n", api_html_entity_decode($message))
  7349. );
  7350. $list = api_get_configuration_value('send_all_emails_to');
  7351. if (!empty($list) && isset($list['emails'])) {
  7352. foreach ($list['emails'] as $email) {
  7353. //$mail->AddBCC($email);
  7354. $mail->AddAddress($email);
  7355. }
  7356. }
  7357. // Send embedded image.
  7358. if ($embedded_image) {
  7359. // Get all images html inside content.
  7360. preg_match_all("/<img\s+.*?src=[\"\']?([^\"\' >]*)[\"\']?[^>]*>/i", $message, $m);
  7361. // Prepare new tag images.
  7362. $new_images_html = [];
  7363. $i = 1;
  7364. if (!empty($m[1])) {
  7365. foreach ($m[1] as $image_path) {
  7366. $real_path = realpath($image_path);
  7367. $filename = basename($image_path);
  7368. $image_cid = $filename.'_'.$i;
  7369. $encoding = 'base64';
  7370. $image_type = mime_content_type($real_path);
  7371. $mail->AddEmbeddedImage(
  7372. $real_path,
  7373. $image_cid,
  7374. $filename,
  7375. $encoding,
  7376. $image_type
  7377. );
  7378. $new_images_html[] = '<img src="cid:'.$image_cid.'" />';
  7379. $i++;
  7380. }
  7381. }
  7382. // Replace origin image for new embedded image html.
  7383. $x = 0;
  7384. if (!empty($m[0])) {
  7385. foreach ($m[0] as $orig_img) {
  7386. $message = str_replace($orig_img, $new_images_html[$x], $message);
  7387. $x++;
  7388. }
  7389. }
  7390. }
  7391. $mailView = new Template(null, false, false, false, false, false, false);
  7392. $noReply = api_get_setting('noreply_email_address');
  7393. if (!empty($noReply)) {
  7394. $message .= "<br />".get_lang('ThisIsAutomaticEmailNoReply');
  7395. }
  7396. $mailView->assign('content', $message);
  7397. if (isset($additionalParameters['link'])) {
  7398. $mailView->assign('link', $additionalParameters['link']);
  7399. }
  7400. $mailView->assign('mail_header_style', api_get_configuration_value('mail_header_style'));
  7401. $mailView->assign('mail_content_style', api_get_configuration_value('mail_content_style'));
  7402. $layout = $mailView->get_template('mail/mail.tpl');
  7403. $mail->Body = $mailView->fetch($layout);
  7404. // Attachment ...
  7405. if (!empty($data_file)) {
  7406. $o = 0;
  7407. foreach ($data_file as $file_attach) {
  7408. if (!empty($file_attach['path']) && !empty($file_attach['filename'])) {
  7409. $mail->AddAttachment($file_attach['path'], $file_attach['filename']);
  7410. }
  7411. $o++;
  7412. }
  7413. }
  7414. // Only valid addresses are accepted.
  7415. if (is_array($recipient_email)) {
  7416. foreach ($recipient_email as $dest) {
  7417. if (api_valid_email($dest)) {
  7418. $mail->AddAddress($dest, $recipient_name);
  7419. }
  7420. }
  7421. } else {
  7422. if (api_valid_email($recipient_email)) {
  7423. $mail->AddAddress($recipient_email, $recipient_name);
  7424. } else {
  7425. return 0;
  7426. }
  7427. }
  7428. if (is_array($extra_headers) && count($extra_headers) > 0) {
  7429. foreach ($extra_headers as $key => $value) {
  7430. switch (strtolower($key)) {
  7431. case 'encoding':
  7432. case 'content-transfer-encoding':
  7433. $mail->Encoding = $value;
  7434. break;
  7435. case 'charset':
  7436. $mail->Charset = $value;
  7437. break;
  7438. case 'contenttype':
  7439. case 'content-type':
  7440. $mail->ContentType = $value;
  7441. break;
  7442. default:
  7443. $mail->AddCustomHeader($key.':'.$value);
  7444. break;
  7445. }
  7446. }
  7447. } else {
  7448. if (!empty($extra_headers)) {
  7449. $mail->AddCustomHeader($extra_headers);
  7450. }
  7451. }
  7452. // WordWrap the html body (phpMailer only fixes AltBody) FS#2988
  7453. $mail->Body = $mail->WrapText($mail->Body, $mail->WordWrap);
  7454. // Send the mail message.
  7455. if (!$mail->Send()) {
  7456. error_log('ERROR: mail not sent to '.$recipient_name.' ('.$recipient_email.') because of '.$mail->ErrorInfo.'<br />');
  7457. if ($mail->SMTPDebug) {
  7458. error_log(
  7459. "Connection details :: ".
  7460. "Protocol: ".$mail->Mailer.' :: '.
  7461. "Host/Port: ".$mail->Host.':'.$mail->Port.' :: '.
  7462. "Authent/Open: ".($mail->SMTPAuth ? 'Authent' : 'Open').' :: '.
  7463. ($mail->SMTPAuth ? " User/Pass: ".$mail->Username.':'.$mail->Password : '').' :: '.
  7464. "Sender: ".$mail->Sender
  7465. );
  7466. }
  7467. return 0;
  7468. }
  7469. if (!empty($additionalParameters)) {
  7470. $plugin = new AppPlugin();
  7471. $smsPlugin = $plugin->getSMSPluginLibrary();
  7472. if ($smsPlugin) {
  7473. $smsPlugin->send($additionalParameters);
  7474. }
  7475. }
  7476. // Clear all the addresses.
  7477. $mail->ClearAddresses();
  7478. // Clear all attachments
  7479. $mail->ClearAttachments();
  7480. return 1;
  7481. }
  7482. /**
  7483. * @param string $tool Possible values: GroupManager::GROUP_TOOL_*
  7484. * @param bool $showHeader
  7485. */
  7486. function api_protect_course_group($tool, $showHeader = true)
  7487. {
  7488. $userId = api_get_user_id();
  7489. $groupId = api_get_group_id();
  7490. $groupInfo = GroupManager::get_group_properties($groupId);
  7491. if (!empty($groupInfo)) {
  7492. $allow = GroupManager::user_has_access(
  7493. $userId,
  7494. $groupInfo['iid'],
  7495. $tool
  7496. );
  7497. if (!$allow) {
  7498. api_not_allowed($showHeader);
  7499. }
  7500. }
  7501. }
  7502. /**
  7503. * Check if a date is in a date range
  7504. *
  7505. * @param datetime $startDate
  7506. * @param datetime $endDate
  7507. * @param datetime $currentDate
  7508. * @return bool true if date is in rage, false otherwise
  7509. */
  7510. function api_is_date_in_date_range($startDate, $endDate, $currentDate = null)
  7511. {
  7512. $startDate = strtotime(api_get_local_time($startDate));
  7513. $endDate = strtotime(api_get_local_time($endDate));
  7514. $currentDate = strtotime(api_get_local_time($currentDate));
  7515. if ($currentDate >= $startDate && $currentDate <= $endDate) {
  7516. return true;
  7517. }
  7518. return false;
  7519. }
  7520. /**
  7521. * Eliminate the duplicates of a multidimensional array by sending the key
  7522. *
  7523. * @param array $array multidimensional array
  7524. * @param int $key key to find to compare
  7525. * @return array
  7526. *
  7527. */
  7528. function api_unique_multidim_array($array, $key)
  7529. {
  7530. $temp_array = [];
  7531. $i = 0;
  7532. $key_array = [];
  7533. foreach ($array as $val) {
  7534. if (!in_array($val[$key], $key_array)) {
  7535. $key_array[$i] = $val[$key];
  7536. $temp_array[$i] = $val;
  7537. }
  7538. $i++;
  7539. }
  7540. return $temp_array;
  7541. }
  7542. /**
  7543. * Limit the access to Session Admins wheen the limit_session_admin_role
  7544. * configuration variable is set to true
  7545. */
  7546. function api_protect_limit_for_session_admin()
  7547. {
  7548. $limitAdmin = api_get_setting('limit_session_admin_role');
  7549. if (api_is_session_admin() && $limitAdmin === 'true') {
  7550. api_not_allowed(true);
  7551. }
  7552. }
  7553. /**
  7554. * @return bool
  7555. */
  7556. function api_is_student_view_active()
  7557. {
  7558. $studentView = Session::read('studentview');
  7559. return $studentView == 'studentview';
  7560. }
  7561. /**
  7562. * Adds a file inside the upload/$type/id
  7563. *
  7564. * @param string $type
  7565. * @param array $file
  7566. * @param int $itemId
  7567. * @param string $cropParameters
  7568. * @return array|bool
  7569. */
  7570. function api_upload_file($type, $file, $itemId, $cropParameters = '')
  7571. {
  7572. $upload = process_uploaded_file($file);
  7573. if ($upload) {
  7574. $name = api_replace_dangerous_char($file['name']);
  7575. // No "dangerous" files
  7576. $name = disable_dangerous_file($name);
  7577. $pathId = '/'.substr((string) $itemId, 0, 1).'/'.$itemId.'/';
  7578. $path = api_get_path(SYS_UPLOAD_PATH).$type.$pathId;
  7579. if (!is_dir($path)) {
  7580. mkdir($path, api_get_permissions_for_new_directories(), true);
  7581. }
  7582. $pathToSave = $path.$name;
  7583. $result = move_uploaded_file($file['tmp_name'], $pathToSave);
  7584. if ($result) {
  7585. if (!empty($cropParameters)) {
  7586. $image = new Image($pathToSave);
  7587. $image->crop($cropParameters);
  7588. }
  7589. return ['path_to_save' => $pathId.$name];
  7590. }
  7591. return false;
  7592. }
  7593. }
  7594. /**
  7595. * @param string $type
  7596. * @param int $itemId
  7597. * @param string $file
  7598. *
  7599. * @return bool
  7600. */
  7601. function api_get_uploaded_file($type, $itemId, $file)
  7602. {
  7603. $itemId = (int) $itemId;
  7604. $pathId = '/'.substr((string) $itemId, 0, 1).'/'.$itemId.'/';
  7605. $path = api_get_path(SYS_UPLOAD_PATH).$type.$pathId;
  7606. $file = basename($file);
  7607. $file = $path.'/'.$file;
  7608. if (file_exists($file)) {
  7609. return $file;
  7610. }
  7611. return false;
  7612. }
  7613. /**
  7614. * @param string $type
  7615. * @param int $itemId
  7616. * @param string $file
  7617. * @param string $title
  7618. */
  7619. function api_download_uploaded_file($type, $itemId, $file, $title = '')
  7620. {
  7621. $file = api_get_uploaded_file($type, $itemId, $file);
  7622. if ($file) {
  7623. if (Security::check_abs_path($file, api_get_path(SYS_UPLOAD_PATH).$type)) {
  7624. DocumentManager::file_send_for_download($file, true, $title);
  7625. exit;
  7626. }
  7627. }
  7628. api_not_allowed(true);
  7629. }
  7630. /**
  7631. * @param string $type
  7632. * @param string $file
  7633. */
  7634. function api_remove_uploaded_file($type, $file)
  7635. {
  7636. $path = api_get_path(SYS_UPLOAD_PATH).$type.'/'.$file;
  7637. if (file_exists($path)) {
  7638. unlink($path);
  7639. }
  7640. }
  7641. /**
  7642. * Converts string value to float value
  7643. *
  7644. * 3.141516 => 3.141516
  7645. * 3,141516 => 3.141516
  7646. * @todo WIP
  7647. *
  7648. * @param string $number
  7649. * @return float
  7650. */
  7651. function api_float_val($number)
  7652. {
  7653. $number = (float) str_replace(',', '.', trim($number));
  7654. return $number;
  7655. }
  7656. /**
  7657. * Converts float values
  7658. * Example if $decimals = 2
  7659. *
  7660. * 3.141516 => 3.14
  7661. * 3,141516 => 3,14
  7662. *
  7663. * @todo WIP
  7664. *
  7665. * @param string $number number in iso code
  7666. * @param int $decimals
  7667. * @return bool|string
  7668. */
  7669. function api_number_format($number, $decimals = 0)
  7670. {
  7671. $number = api_float_val($number);
  7672. return number_format($number, $decimals);
  7673. }
  7674. /**
  7675. * Set location url with a exit break by default
  7676. *
  7677. * @param $url
  7678. * @param bool $exit
  7679. * @return void
  7680. */
  7681. function location($url, $exit = true)
  7682. {
  7683. header('Location: '.$url);
  7684. if ($exit) {
  7685. exit;
  7686. }
  7687. }
  7688. /**
  7689. * @return string
  7690. */
  7691. function api_get_web_url()
  7692. {
  7693. if (api_get_setting('server_type') == 'test') {
  7694. return api_get_path(WEB_PATH).'web/app_dev.php/';
  7695. } else {
  7696. return api_get_path(WEB_PATH).'web/';
  7697. }
  7698. }