index.php 22 KB

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  1. <?php
  2. /* For licensing terms, see /license.txt */
  3. /**
  4. * Index page of the admin tools
  5. * @package chamilo.admin
  6. */
  7. /**
  8. * Code
  9. */
  10. // Language files that need to be included.
  11. $language_file = array('admin', 'tracking','coursebackup');
  12. // Resetting the course id.
  13. $cidReset = true;
  14. // Including some necessary chamilo files.
  15. require_once '../inc/global.inc.php';
  16. if (api_is_question_manager()) {
  17. header('Location: '.api_get_path(WEB_PUBLIC_PATH).'admin/questionmanager');
  18. exit;
  19. }
  20. // Setting the section (for the tabs).
  21. $this_section = SECTION_PLATFORM_ADMIN;
  22. // Access restrictions.
  23. api_protect_admin_script(true);
  24. $nameTools = get_lang('PlatformAdmin');
  25. // Displaying the header
  26. $message = '';
  27. if (api_is_platform_admin()) {
  28. if (is_dir(api_get_path(SYS_CODE_PATH).'install/') && is_readable(api_get_path(SYS_CODE_PATH).'install/index.php')) {
  29. $message = Display::return_message(get_lang('InstallDirAccessibleSecurityThreat'),'warning');
  30. }
  31. if (is_dir(api_get_path(SYS_ARCHIVE_PATH)) && !is_writable(api_get_path(SYS_ARCHIVE_PATH))) {
  32. $message = Display::return_message(get_lang('ArchivesDirectoryNotWriteableContactAdmin'),'warning');
  33. }
  34. /* ACTION HANDLING */
  35. if (!empty($_POST['Register'])) {
  36. register_site();
  37. $message = Display :: return_message(get_lang('VersionCheckEnabled'),'confirmation');
  38. }
  39. $keyword_url = Security::remove_XSS((empty($_GET['keyword']) ? '' : $_GET['keyword']));
  40. }
  41. if (isset($_GET['msg']) && isset($_GET['type'])) {
  42. if (in_array($_GET['msg'], array('ArchiveDirCleanupSucceeded', 'ArchiveDirCleanupFailed')))
  43. switch($_GET['type']) {
  44. case 'error':
  45. $message = Display::return_message(get_lang($_GET['msg']), 'error');
  46. break;
  47. case 'confirmation':
  48. $message = Display::return_message(get_lang($_GET['msg']), 'confirm');
  49. }
  50. }
  51. $blocks = array();
  52. /* Users */
  53. $blocks['users']['icon'] = Display::return_icon('members.gif', get_lang('Users'), array(), ICON_SIZE_SMALL, false);
  54. $blocks['users']['label'] = api_ucfirst(get_lang('Users'));
  55. if (api_is_platform_admin()) {
  56. $search_form = ' <form method="get" class="form-search" action="user_list.php">
  57. <input class="span3" type="text" name="keyword" value="">
  58. <button class="btn" type="submit">'.get_lang('Search').'</button>
  59. </form>';
  60. $blocks['users']['search_form'] = $search_form;
  61. $items = array(
  62. array('url'=>'user_list.php', 'label' => get_lang('UserList')),
  63. array('url'=>'user_add.php', 'label' => get_lang('AddUsers')),
  64. array('url'=>'user_export.php', 'label' => get_lang('ExportUserListXMLCSV')),
  65. array('url'=>'user_import.php', 'label' => get_lang('ImportUserListXMLCSV')),
  66. );
  67. /*if (api_get_setting('allow_social_tool') == 'true') {
  68. $items[] = array('url'=>'group_add.php', 'label' => get_lang('AddGroups'));
  69. $items[] = array('url'=>'group_list.php', 'label' => get_lang('GroupList'));
  70. }*/
  71. if (isset($extAuthSource) && isset($extAuthSource['ldap']) && count($extAuthSource['ldap']) > 0) {
  72. $items[] = array('url'=>'ldap_users_list.php', 'label' => get_lang('ImportLDAPUsersIntoPlatform'));
  73. }
  74. // $items[] = array('url'=>'user_fields.php', 'label' => get_lang('ManageUserFields'));
  75. $items[] = array('url'=>'extra_fields.php?type=user', 'label' => get_lang('ManageUserFields'));
  76. $items[] = array('url'=> api_get_path(WEB_PUBLIC_PATH).'admin/administrator/roles', 'label' => get_lang('Roles'));
  77. } else {
  78. $items = array(
  79. array('url'=>'user_list.php', 'label' => get_lang('UserList')),
  80. array('url'=>'user_add.php', 'label' => get_lang('AddUsers')),
  81. array('url'=>'user_import.php', 'label' => get_lang('ImportUserListXMLCSV')),
  82. );
  83. }
  84. $blocks['users']['items'] = $items;
  85. $blocks['users']['extra'] = null;
  86. if (api_is_platform_admin()) {
  87. /* Courses */
  88. $blocks['courses']['icon'] = Display::return_icon('course.gif', get_lang('Courses'), array(), ICON_SIZE_MEDIUM, false);
  89. $blocks['courses']['label'] = api_ucfirst(get_lang('Courses'));
  90. $search_form = ' <form method="get" class="form-search" action="course_list.php">
  91. <input class="span3" type="text" name="keyword" value="">
  92. <button class="btn" type="submit">'.get_lang('Search').'</button>
  93. </form>';
  94. $blocks['courses']['search_form'] = $search_form;
  95. $items = array();
  96. $items[] = array('url'=>'course_list.php', 'label' => get_lang('CourseList'));
  97. if (api_get_setting('course_validation') != 'true') {
  98. $items[] = array('url'=>'course_add.php', 'label' => get_lang('AddCourse'));
  99. } else {
  100. $items[] = array('url'=>'course_request_review.php', 'label' => get_lang('ReviewCourseRequests'));
  101. $items[] = array('url'=>'course_request_accepted.php', 'label' => get_lang('AcceptedCourseRequests'));
  102. $items[] = array('url'=>'course_request_rejected.php', 'label' => get_lang('RejectedCourseRequests'));
  103. }
  104. $items[] = array('url'=>'course_export.php', 'label' => get_lang('ExportCourses'));
  105. $items[] = array('url'=>'course_import.php', 'label' => get_lang('ImportCourses'));
  106. $items[] = array('url'=>'course_category.php', 'label' => get_lang('AdminCategories'));
  107. $items[] = array('url'=>'subscribe_user2course.php', 'label' => get_lang('AddUsersToACourse'));
  108. $items[] = array('url'=>'course_user_import.php', 'label' => get_lang('ImportUsersToACourse'));
  109. $items[] = array('url'=>'extra_fields.php?type=course', 'label' => get_lang('ManageCourseFields'));
  110. $items[] = array('url'=>'extra_fields.php?type=question', 'label' => get_lang('ManageQuestionFields'));
  111. if (api_get_setting('gradebook_enable_grade_model') == 'true') {
  112. $items[] = array('url'=>'grade_models.php', 'label' => get_lang('GradeModel'));
  113. }
  114. if (isset($extAuthSource) && isset($extAuthSource['ldap']) && count($extAuthSource['ldap']) > 0) {
  115. $items[] = array('url'=>'ldap_import_students.php', 'label' => get_lang('ImportLDAPUsersIntoCourse'));
  116. }
  117. $blocks['courses']['items'] = $items;
  118. $blocks['courses']['extra'] = null;
  119. /* Platform */
  120. $blocks['platform']['icon'] = Display::return_icon('platform.png', get_lang('Platform'), array(), ICON_SIZE_MEDIUM, false);
  121. $blocks['platform']['label'] = api_ucfirst(get_lang('Platform'));
  122. $search_form = ' <form method="get" action="settings.php" class="form-search">
  123. <input class="span3" type="text" name="search_field" value="" >
  124. <input type="hidden" value="search_setting" name="category">
  125. <button class="btn" type="submit">'.get_lang('Search').'</button>
  126. </form>';
  127. $blocks['platform']['search_form'] = $search_form;
  128. $items = array();
  129. $items[] = array('url'=>'settings.php', 'label' => get_lang('PlatformConfigSettings'));
  130. $items[] = array('url'=>'settings.php?category=Plugins','label' => get_lang('Plugins'));
  131. $items[] = array('url'=>'settings.php?category=Regions','label' => get_lang('Regions'));
  132. $items[] = array('url'=>'system_announcements.php', 'label' => get_lang('SystemAnnouncements'));
  133. $items[] = array('url'=>api_get_path(WEB_CODE_PATH).'calendar/agenda_js.php?type=admin', 'label' => get_lang('GlobalAgenda'));
  134. $items[] = array('url'=>'configure_homepage.php', 'label' => get_lang('ConfigureHomePage'));
  135. $items[] = array('url'=>'configure_inscription.php', 'label' => get_lang('ConfigureInscription'));
  136. $items[] = array('url'=>'statistics/index.php', 'label' => get_lang('Statistics'));
  137. $items[] = array('url'=> api_get_path(WEB_CODE_PATH).'mySpace/company_reports.php', 'label' => get_lang('Reports'));
  138. /* Event settings */
  139. if (api_get_setting('activate_email_template') == 'true') {
  140. $items[] = array('url'=>'event_controller.php?action=listing', 'label' => get_lang('EventMessageManagement'));
  141. }
  142. if (!empty($_configuration['multiple_access_urls'])) {
  143. if (api_is_global_platform_admin()) {
  144. $items[] = array('url'=>'access_urls.php', 'label' => get_lang('ConfigureMultipleAccessURLs'));
  145. }
  146. }
  147. if (api_get_setting('allow_reservation') == 'true') {
  148. $items[] = array('url'=>'../reservation/m_category.php', 'label' => get_lang('BookingSystem'));
  149. }
  150. if (api_get_setting('allow_terms_conditions') == 'true') {
  151. $items[] = array('url'=>'legal_add.php', 'label' => get_lang('TermsAndConditions'));
  152. }
  153. $blocks['platform']['items'] = $items;
  154. $blocks['platform']['extra'] = null;
  155. }
  156. /* Sessions */
  157. $blocks['sessions']['icon'] = Display::return_icon('session.png', get_lang('Sessions'), array(), ICON_SIZE_SMALL, false);
  158. $blocks['sessions']['label'] = api_ucfirst(get_lang('Sessions'));
  159. $search_form = ' <form method="GET" class="form-search" action="'.api_get_path(WEB_CODE_PATH).'session/session_list.php">
  160. <input class="span3" type="text" name="keyword" value="">
  161. <button class="btn" type="submit">'.get_lang('Search').'</button>
  162. </form>';
  163. $blocks['sessions']['search_form'] = $search_form;
  164. $items = array();
  165. $items[] = array('url'=> api_get_path(WEB_CODE_PATH).'session/session_list.php', 'label' => get_lang('ListSession'));
  166. $items[] = array('url'=> api_get_path(WEB_CODE_PATH).'session/session_add.php', 'label' => get_lang('AddSession'));
  167. $items[] = array('url'=> 'session_category_list.php', 'label' => get_lang('ListSessionCategory'));
  168. $items[] = array('url'=> api_get_path(WEB_CODE_PATH).'session/session_import.php', 'label' => get_lang('ImportSessionListXMLCSV'));
  169. if (isset($extAuthSource) && isset($extAuthSource['ldap']) && count($extAuthSource['ldap']) > 0) {
  170. $items[] = array('url'=>'ldap_import_students_to_session.php', 'label' => get_lang('ImportLDAPUsersIntoSession'));
  171. }
  172. $items[] = array('url'=>api_get_path(WEB_CODE_PATH).'session/session_export.php', 'label' => get_lang('ExportSessionListXMLCSV'));
  173. $items[] = array('url'=>'../coursecopy/copy_course_session.php', 'label' => get_lang('CopyFromCourseInSessionToAnotherSession'));
  174. if (api_is_platform_admin()) {
  175. if (is_dir(api_get_path(SYS_TEST_PATH).'datafiller/')) { // option only visible in development mode. Enable through code if required
  176. $items[] = array('url'=>'user_move_stats.php', 'label' => get_lang('MoveUserStats'));
  177. }
  178. $items[] = array('url'=>'career_dashboard.php', 'label' => get_lang('CareersAndPromotions'));
  179. }
  180. $items[] = array('url'=>'usergroups.php', 'label' => get_lang('Classes'));
  181. $items[] = array('url'=>'extra_fields.php?type=session', 'label' => get_lang('ManageSessionFields'));
  182. $blocks['sessions']['items'] = $items;
  183. $blocks['sessions']['extra'] = null;
  184. /* Settings */
  185. if (api_is_platform_admin()) {
  186. $blocks['settings']['icon'] = Display::return_icon('settings.png', get_lang('System'), array(), ICON_SIZE_SMALL, false);
  187. $blocks['settings']['label'] = api_ucfirst(get_lang('System'));
  188. $items = array();
  189. $items[] = array('url'=>'special_exports.php', 'label' => get_lang('SpecialExports'));
  190. if (!empty($_configuration['db_admin_path'])) {
  191. $items[] = array('url'=>$_configuration['db_admin_path'], 'label' => get_lang('AdminDatabases').' ('.get_lang('DBManagementOnlyForServerAdmin').') ');
  192. }
  193. $items[] = array('url'=>'system_status.php', 'label' => get_lang('SystemStatus'));
  194. if (is_dir(api_get_path(SYS_TEST_PATH).'datafiller/')) {
  195. $items[] = array('url'=>'filler.php', 'label' => get_lang('DataFiller'));
  196. }
  197. $items[] = array('url'=>'archive_cleanup.php', 'label' => get_lang('ArchiveDirCleanup'));
  198. $items[] = array('url'=>'system_management.php', 'label' => get_lang('SystemManagement'));
  199. $blocks['settings']['items'] = $items;
  200. $blocks['settings']['extra'] = null;
  201. $blocks['settings']['search_form'] = null;
  202. /* Extensions */
  203. /*
  204. $blocks['extensions']['icon'] = Display::return_icon('visio_meeting.gif', get_lang('ConfigureExtensions'), array(), ICON_SIZE_SMALL, false);
  205. $blocks['extensions']['label'] = api_ucfirst(get_lang('ConfigureExtensions'));
  206. $items = array();
  207. $items[] = array('url'=>'configure_extensions.php?display=visio', 'label' => get_lang('Visioconf'));
  208. $items[] = array('url'=>'configure_extensions.php?display=ppt2lp', 'label' => get_lang('Ppt2lp'));
  209. //$items[] = array('url'=>'configure_extensions.php?display=ephorus', 'label' => get_lang('EphorusPlagiarismPrevention'));
  210. $items[] = array('url'=>'configure_extensions.php?display=search', 'label' => get_lang('SearchEngine'));
  211. $items[] = array('url'=>'configure_extensions.php?display=serverstats', 'label' => get_lang('ServerStatistics'));
  212. $items[] = array('url'=>'configure_extensions.php?display=bandwidthstats', 'label' => get_lang('BandWidthStatistics'));
  213. $blocks['extensions']['items'] = $items;
  214. */
  215. //Skills
  216. if (api_get_setting('allow_skills_tool') == 'true') {
  217. $blocks['skills']['icon'] = Display::return_icon('logo.gif', get_lang('Skills'), array(), ICON_SIZE_SMALL, false);
  218. $blocks['skills']['label'] = get_lang('Skills');
  219. $items = array();
  220. //$items[] = array('url'=>'skills.php', 'label' => get_lang('SkillsTree'));
  221. $items[] = array('url'=>'skills_wheel.php', 'label' => get_lang('SkillsWheel'));
  222. $items[] = array('url'=>'skills_import.php', 'label' => get_lang('SkillsImport'));
  223. //$items[] = array('url'=>'skills_profile.php', 'label' => get_lang('SkillsProfile'));
  224. $items[] = array('url'=>api_get_path(WEB_CODE_PATH).'social/skills_ranking.php', 'label' => get_lang('SkillsRanking'));
  225. $items[] = array('url'=>'skills_gradebook.php', 'label' => get_lang('SkillsAndGradebooks'));
  226. $blocks['skills']['items'] = $items;
  227. $blocks['skills']['extra'] = null;
  228. $blocks['skills']['search_form'] = null;
  229. }
  230. /* Chamilo.org */
  231. $blocks['chamilo']['icon'] = Display::return_icon('logo.gif', 'Chamilo.org', array(), ICON_SIZE_SMALL, false);
  232. $blocks['chamilo']['label'] = 'Chamilo.org';
  233. $items = array();
  234. $items[] = array('url'=>'http://www.chamilo.org/', 'label' => get_lang('ChamiloHomepage'));
  235. $items[] = array('url'=>'http://www.chamilo.org/forum', 'label' => get_lang('ChamiloForum'));
  236. $items[] = array('url'=>'../../documentation/installation_guide.html', 'label' => get_lang('InstallationGuide'));
  237. $items[] = array('url'=>'../../documentation/changelog.html', 'label' => get_lang('ChangesInLastVersion'));
  238. $items[] = array('url'=>'../../documentation/credits.html', 'label' => get_lang('ContributorsList'));
  239. $items[] = array('url'=>'../../documentation/security.html', 'label' => get_lang('SecurityGuide'));
  240. $items[] = array('url'=>'../../documentation/optimization.html', 'label' => get_lang('OptimizationGuide'));
  241. $items[] = array('url'=>'http://www.chamilo.org/extensions', 'label' => get_lang('ChamiloExtensions'));
  242. $items[] = array('url'=>'http://www.chamilo.org/en/providers', 'label' => get_lang('ChamiloOfficialServicesProviders'));
  243. $blocks['chamilo']['items'] = $items;
  244. $blocks['chamilo']['extra'] = null;
  245. $blocks['chamilo']['search_form'] = null;
  246. // Try to display a maximum before we check the chamilo version and all that.
  247. //session_write_close(); //close session to avoid blocking concurrent access
  248. //flush(); //send data to client as much as allowed by the web server
  249. //ob_flush();
  250. //Version check
  251. $blocks['version_check']['icon'] = Display::return_icon('logo.gif', 'Chamilo.org', array(), ICON_SIZE_SMALL, false);
  252. $blocks['version_check']['label'] = get_lang('VersionCheck');
  253. $blocks['version_check']['extra'] = version_check();
  254. $blocks['version_check']['search_form'] = null;
  255. $blocks['version_check']['items'] = null;
  256. }
  257. $app['template']->assign('blocks', $blocks);
  258. //$app['template']->display('default/admin/settings_index.tpl');
  259. //$app['default_layout'] = $app['template_style'].'/admin/settings_index.tpl';
  260. $app['template']->display('default/admin/settings_index.tpl');
  261. /**
  262. * Displays either the text for the registration or the message that the installation is (not) up to date
  263. *
  264. * @return string html code
  265. * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
  266. * @version august 2006
  267. * @todo have a 6monthly re-registration
  268. */
  269. function version_check() {
  270. $tbl_settings = Database :: get_main_table(TABLE_MAIN_SETTINGS_CURRENT);
  271. $sql = 'SELECT selected_value FROM '.$tbl_settings.' WHERE variable="registered" ';
  272. $result = Database::query($sql);
  273. $row = Database::fetch_array($result, 'ASSOC');
  274. // The site has not been registered yet.
  275. $return = '';
  276. if ($row['selected_value'] == 'false') {
  277. $return .= get_lang('VersionCheckExplanation');
  278. $return .= '<form class="well" action="'.api_get_self().'" id="VersionCheck" name="VersionCheck" method="post">';
  279. $return .= '<label class="checkbox"><input type="checkbox" name="donotlistcampus" value="1" id="checkbox" />'.get_lang('HideCampusFromPublicPlatformsList');
  280. $return .= '</label><button type="submit" class="btn btn-primary" name="Register" value="'.get_lang('EnableVersionCheck').'" id="register" >'.get_lang('EnableVersionCheck').'</button>';
  281. $return .= '</form>';
  282. check_system_version();
  283. } else {
  284. // Site registered. Call anyway
  285. $return .= check_system_version();
  286. }
  287. return $return;
  288. }
  289. /**
  290. * This setting changes the registration status for the campus
  291. *
  292. * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
  293. * @version August 2006
  294. *
  295. * @todo the $_settings should be reloaded here. => write api function for this and use this in global.inc.php also.
  296. */
  297. function register_site() {
  298. $tbl_settings = Database :: get_main_table(TABLE_MAIN_SETTINGS_CURRENT);
  299. $sql = "UPDATE $tbl_settings SET selected_value='true' WHERE variable='registered'";
  300. $result = Database::query($sql);
  301. if ($_POST['donotlistcampus']) {
  302. $sql = "UPDATE $tbl_settings SET selected_value='true' WHERE variable='donotlistcampus'";
  303. $result = Database::query($sql);
  304. }
  305. // Reload the settings.
  306. }
  307. /**
  308. * Check if the current installation is up to date
  309. * The code is borrowed from phpBB and slighlty modified
  310. * @author The phpBB Group <support@phpbb.com> (the code)
  311. * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University (the modifications)
  312. * @author Yannick Warnier <ywarnier@beeznest.org> for the move to HTTP request
  313. * @copyright (C) 2001 The phpBB Group
  314. * @return language string with some layout (color)
  315. */
  316. function check_system_version() {
  317. global $_configuration;
  318. $system_version = trim($_configuration['system_version']); // the chamilo version of your installation
  319. if (ini_get('allow_url_fopen') == 1) {
  320. // The number of courses
  321. $number_of_courses = Statistics::count_courses();
  322. // The number of users
  323. $number_of_users = statistics::count_users();
  324. $number_of_active_users = statistics::count_users(null,null,null,true);
  325. $data = array(
  326. 'url' => api_get_path(WEB_PATH),
  327. 'campus' => api_get_setting('siteName'),
  328. 'contact' => api_get_setting('emailAdministrator'),
  329. 'version' => $system_version,
  330. 'numberofcourses' => $number_of_courses,
  331. 'numberofusers' => $number_of_users,
  332. 'numberofactiveusers' => $number_of_active_users,
  333. //The donotlistcampus setting recovery should be improved to make
  334. // it true by default - this does not affect numbers counting
  335. 'donotlistcampus' => api_get_setting('donotlistcampus'),
  336. 'organisation' => api_get_setting('Institution'),
  337. 'language' => api_get_setting('platformLanguage'),
  338. 'adminname' => api_get_setting('administratorName').' '.api_get_setting('administratorSurname'),
  339. );
  340. $res = _http_request('version.chamilo.org', 80, '/version.php', $data);
  341. if ($res !== false) {
  342. $version_info = $res;
  343. if ($system_version != $version_info) {
  344. $output = '<br /><span style="color:red">' . get_lang('YourVersionNotUpToDate') . '. '.get_lang('LatestVersionIs').' <b>Chamilo '.$version_info.'</b>. '.get_lang('YourVersionIs').' <b>Chamilo '.$system_version. '</b>. '.str_replace('http://www.chamilo.org', '<a href="http://www.chamilo.org">http://www.chamilo.org</a>', get_lang('PleaseVisitOurWebsite')).'</span>';
  345. } else {
  346. $output = '<br /><span style="color:green">'.get_lang('VersionUpToDate').': Chamilo '.$version_info.'</span>';
  347. }
  348. } else {
  349. $output = '<span style="color:red">' . get_lang('ImpossibleToContactVersionServerPleaseTryAgain') . '</span>';
  350. }
  351. } else {
  352. $output = '<span style="color:red">' . get_lang('AllowurlfopenIsSetToOff') . '</span>';
  353. }
  354. return $output;
  355. }
  356. /**
  357. * Function to make an HTTP request through fsockopen (specialised for GET)
  358. * Derived from Jeremy Saintot: http://www.php.net/manual/en/function.fsockopen.php#101872
  359. * @param string IP or hostname
  360. * @param int Target port
  361. * @param string URI (defaults to '/')
  362. * @param array GET data
  363. * @param float Timeout
  364. * @param bool Include HTTP Request headers?
  365. * @param bool Include HTTP Response headers?
  366. */
  367. function _http_request($ip, $port = 80, $uri = '/', $getdata = array(), $timeout = 1, $req_hdr = false, $res_hdr = false) {
  368. $verb = 'GET';
  369. $ret = '';
  370. $getdata_str = count($getdata) ? '?' : '';
  371. foreach ($getdata as $k => $v) {
  372. $getdata_str .= urlencode($k) .'='. urlencode($v) . '&';
  373. }
  374. $crlf = "\r\n";
  375. $req = $verb .' '. $uri . $getdata_str .' HTTP/1.1' . $crlf;
  376. $req .= 'Host: '. $ip . $crlf;
  377. $req .= 'User-Agent: Mozilla/5.0 Firefox/3.6.12' . $crlf;
  378. $req .= 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8' . $crlf;
  379. $req .= 'Accept-Language: en-us,en;q=0.5' . $crlf;
  380. $req .= 'Accept-Encoding: deflate' . $crlf;
  381. $req .= 'Accept-Charset: utf-8;q=0.7,*;q=0.7' . $crlf;
  382. $req .= $crlf;
  383. if ($req_hdr) { $ret .= $req; }
  384. if (($fp = @fsockopen($ip, $port, $errno, $errstr, $timeout)) == false) {
  385. return "Error $errno: $errstr\n";
  386. }
  387. stream_set_timeout($fp, $timeout);
  388. $r = @fwrite($fp, $req);
  389. $line = @fread($fp,512);
  390. $ret .= $line;
  391. fclose($fp);
  392. if (!$res_hdr) {
  393. $ret = substr($ret, strpos($ret, "\r\n\r\n") + 4);
  394. }
  395. return trim($ret);
  396. }