urlmanager.lib.php 20 KB

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  1. <?php
  2. /*
  3. ==============================================================================
  4. Dokeos - elearning and course management software
  5. Copyright (c) 2009 Dokeos SPRL
  6. Copyright (c) 2009 Julio Montoya Armas <gugli100@gmail.com>
  7. For a full list of contributors, see "credits.txt".
  8. The full license can be read in "license.txt".
  9. This program is free software; you can redistribute it and/or
  10. modify it under the terms of the GNU General Public License
  11. as published by the Free Software Foundation; either version 2
  12. of the License, or (at your option) any later version.
  13. See the GNU General Public License for more details.
  14. Contact: Dokeos, rue du Corbeau, 108, B-1030 Brussels, Belgium, info@dokeos.com
  15. ==============================================================================
  16. */
  17. /**
  18. ==============================================================================
  19. * This library provides functions for the access_url management.
  20. * Include/require it in your code to use its functionality.
  21. *
  22. * @package dokeos.library
  23. ==============================================================================
  24. */
  25. class UrlManager
  26. {
  27. /**
  28. * Creates a new url access to Dokeos
  29. *
  30. * @author Julio Montoya <gugli100@gmail.com>,
  31. *
  32. * @param string The URL of the site
  33. * @param string The description of the site
  34. * @param int is active or not
  35. * @param int the user_id of the owner
  36. * @return boolean if success
  37. */
  38. function add($url, $description, $active)
  39. {
  40. $tms = time();
  41. $table_access_url= Database :: get_main_table(TABLE_MAIN_ACCESS_URL);
  42. $sql = "INSERT INTO $table_access_url
  43. SET url = '".Database::escape_string($url)."',
  44. description = '".Database::escape_string($description)."',
  45. active = '".Database::escape_string($active)."',
  46. created_by = '".Database::escape_string(api_get_user_id())."',
  47. tms = FROM_UNIXTIME(".$tms.")";
  48. $result = api_sql_query($sql, __FILE__, __LINE__);
  49. return $result;
  50. }
  51. /**
  52. * Updates an URL access to Dokeos
  53. * @author Julio Montoya <gugli100@gmail.com>,
  54. *
  55. * @param int The url id
  56. * @param string The description of the site
  57. * @param int is active or not
  58. * @param int the user_id of the owner
  59. * @return boolean if success
  60. */
  61. function udpate($url_id, $url, $description, $active)
  62. {
  63. $table_access_url= Database :: get_main_table(TABLE_MAIN_ACCESS_URL);
  64. $tms = time();
  65. $sql = "UPDATE $table_access_url
  66. SET url = '".Database::escape_string($url)."',
  67. description = '".Database::escape_string($description)."',
  68. active = '".Database::escape_string($active)."',
  69. created_by = '".Database::escape_string(api_get_user_id())."',
  70. tms = FROM_UNIXTIME(".$tms.")
  71. WHERE id = '$url_id'";
  72. $result = api_sql_query($sql, __FILE__, __LINE__);
  73. return $result;
  74. }
  75. /**
  76. * Deletes an url
  77. * @author Julio Montoya
  78. * @param int url id
  79. * @return boolean true if success
  80. * */
  81. function delete($id)
  82. {
  83. $table_access_url= Database :: get_main_table(TABLE_MAIN_ACCESS_URL);
  84. $sql= "DELETE FROM $table_access_url WHERE id = ".Database::escape_string($id);
  85. $result = api_sql_query($sql, __FILE__, __LINE__);
  86. return $result;
  87. }
  88. /**
  89. *
  90. * */
  91. function url_exist($url)
  92. {
  93. $table_access_url= Database :: get_main_table(TABLE_MAIN_ACCESS_URL);
  94. $sql = "SELECT id FROM $table_access_url WHERE url = '".Database::escape_string($url)."' ";
  95. $res = api_sql_query($sql,__FILE__,__LINE__);
  96. $num = Database::num_rows($res);
  97. return $num;
  98. }
  99. /**
  100. *
  101. * */
  102. function url_id_exist($url)
  103. {
  104. $table_access_url= Database :: get_main_table(TABLE_MAIN_ACCESS_URL);
  105. $sql = "SELECT id FROM $table_access_url WHERE id = '".Database::escape_string($url)."' ";
  106. $res = api_sql_query($sql,__FILE__,__LINE__);
  107. $num = Database::num_rows($res);
  108. return $num;
  109. }
  110. /**
  111. * This function get the quantity of URLs
  112. * @author Julio Montoya
  113. * @return int count of urls
  114. * */
  115. function url_count()
  116. {
  117. $table_access_url= Database :: get_main_table(TABLE_MAIN_ACCESS_URL);
  118. $sql = "SELECT count(id) as count_result FROM $table_access_url";
  119. $res = api_sql_query($sql, __FILE__, __LINE__);
  120. $url = Database::fetch_array($res,'ASSOC');
  121. $result = $url['count_result'];
  122. return $result;
  123. }
  124. /**
  125. * Gets the id, url, description, and active status of ALL URLs
  126. * @author Julio Montoya
  127. * @return array
  128. * */
  129. function get_url_data()
  130. {
  131. $table_access_url= Database :: get_main_table(TABLE_MAIN_ACCESS_URL);
  132. $sql = "SELECT id, url, description, active FROM $table_access_url";
  133. $res = api_sql_query($sql, __FILE__, __LINE__);
  134. $urls = array ();
  135. while ($url = Database::fetch_array($res)) {
  136. $urls[] = $url;
  137. }
  138. return $urls;
  139. }
  140. /**
  141. * Gets the id, url, description, and active status of ALL URLs
  142. * @author Julio Montoya
  143. * @return array
  144. * */
  145. function get_url_data_from_id($url_id)
  146. {
  147. $table_access_url= Database :: get_main_table(TABLE_MAIN_ACCESS_URL);
  148. $sql = "SELECT id, url, description, active FROM $table_access_url WHERE id = ".Database::escape_string($url_id);
  149. $res = api_sql_query($sql, __FILE__, __LINE__);
  150. $row = Database::fetch_array($res);
  151. return $row;
  152. }
  153. /** Gets the inner join of users and urls table
  154. * @author Julio Montoya
  155. * @return int access url id
  156. * @return array api_store_result of the result
  157. * */
  158. function get_url_rel_user_data($access_url_id='')
  159. {
  160. $where ='';
  161. $table_url_rel_user = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
  162. $tbl_user = Database :: get_main_table(TABLE_MAIN_USER);
  163. if (!empty($access_url_id))
  164. $where ="WHERE $table_url_rel_user.access_url_id = ".Database::escape_string($access_url_id);
  165. $sql="SELECT u.user_id, lastname, firstname, username, access_url_id
  166. FROM $tbl_user u
  167. INNER JOIN $table_url_rel_user
  168. ON $table_url_rel_user.user_id = u.user_id
  169. $where
  170. ORDER BY lastname,firstname,username";
  171. $result=api_sql_query($sql,__FILE__,__LINE__);
  172. $users=api_store_result($result);
  173. return $users;
  174. }
  175. /** Gets the inner join of access_url and the course table
  176. * @author Julio Montoya
  177. * @return int access url id
  178. * @return array api_store_result of the result
  179. * */
  180. function get_url_rel_course_data($access_url_id='')
  181. {
  182. $where ='';
  183. $table_url_rel_course = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
  184. $tbl_course = Database :: get_main_table(TABLE_MAIN_COURSE);
  185. if (!empty($access_url_id))
  186. $where ="WHERE $table_url_rel_course.access_url_id = ".Database::escape_string($access_url_id);
  187. $sql="SELECT course_code, title, access_url_id
  188. FROM $tbl_course u
  189. INNER JOIN $table_url_rel_course
  190. ON $table_url_rel_course.course_code = code
  191. $where
  192. ORDER BY title, code";
  193. $result=api_sql_query($sql,__FILE__,__LINE__);
  194. $courses=api_store_result($result);
  195. return $courses;
  196. }
  197. /** Gets the inner join of access_url and the session table
  198. * @author Julio Montoya
  199. * @return int access url id
  200. * @return array api_store_result of the result
  201. * */
  202. function get_url_rel_session_data($access_url_id='')
  203. {
  204. $where ='';
  205. $table_url_rel_session = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  206. $tbl_session = Database :: get_main_table(TABLE_MAIN_SESSION);
  207. if (!empty($access_url_id))
  208. $where ="WHERE $table_url_rel_session.access_url_id = ".Database::escape_string($access_url_id);
  209. $sql="SELECT id, name, access_url_id
  210. FROM $tbl_session u
  211. INNER JOIN $table_url_rel_session
  212. ON $table_url_rel_session.session_id = id
  213. $where
  214. ORDER BY name, id";
  215. $result=api_sql_query($sql,__FILE__,__LINE__);
  216. $sessions=api_store_result($result);
  217. return $sessions;
  218. }
  219. /**
  220. * Sets the status of an URL 1 or 0
  221. * @author Julio Montoya
  222. * @param string lock || unlock
  223. * @param int url id
  224. * */
  225. function set_url_status($status, $url_id)
  226. {
  227. $url_table = Database :: get_main_table(TABLE_MAIN_ACCESS_URL);
  228. if ($status=='lock') {
  229. $status_db='0';
  230. }
  231. if ($status=='unlock') {
  232. $status_db='1';
  233. }
  234. if(($status_db=='1' OR $status_db=='0') AND is_numeric($url_id)) {
  235. $sql="UPDATE $url_table SET active='".Database::escape_string($status_db)."' WHERE id='".Database::escape_string($url_id)."'";
  236. $result = api_sql_query($sql, __FILE__, __LINE__);
  237. }
  238. }
  239. /**
  240. * Checks the relationship between an URL and a User (return the num_rows)
  241. * @author Julio Montoya
  242. * @param int user id
  243. * @param int url id
  244. * @return boolean true if success
  245. * */
  246. function relation_url_user_exist($user_id, $url_id)
  247. {
  248. $table_url_rel_user= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
  249. $sql= "SELECT user_id FROM $table_url_rel_user WHERE access_url_id = ".Database::escape_string($url_id)." AND user_id = ".Database::escape_string($user_id)." ";
  250. $result = api_sql_query($sql, __FILE__, __LINE__);
  251. $num = Database::num_rows($result);
  252. return $num;
  253. }
  254. /**
  255. * Checks the relationship between an URL and a Course (return the num_rows)
  256. * @author Julio Montoya
  257. * @param int user id
  258. * @param int url id
  259. * @return boolean true if success
  260. * */
  261. function relation_url_course_exist($course_id, $url_id)
  262. {
  263. $table_url_rel_course= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
  264. $sql= "SELECT course_code FROM $table_url_rel_course WHERE access_url_id = ".Database::escape_string($url_id)." AND course_code = '".Database::escape_string($course_id)."'";
  265. $result = api_sql_query($sql, __FILE__, __LINE__);
  266. $num = Database::num_rows($result);
  267. return $num;
  268. }
  269. /**
  270. * Checks the relationship between an URL and a Session (return the num_rows)
  271. * @author Julio Montoya
  272. * @param int user id
  273. * @param int url id
  274. * @return boolean true if success
  275. * */
  276. function relation_url_session_exist($session_id, $url_id)
  277. {
  278. $table_url_rel_session= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  279. $sql= "SELECT session_id FROM $table_url_rel_session WHERE access_url_id = ".Database::escape_string($url_id)." AND session_id = ".Database::escape_string($session_id);
  280. $result = api_sql_query($sql, __FILE__, __LINE__);
  281. $num = Database::num_rows($result);
  282. return $num;
  283. }
  284. /**
  285. * Add a group of users into a group of URLs
  286. * @author Julio Montoya
  287. * @param array of user_ids
  288. * @param array of url_ids
  289. * */
  290. function add_users_to_urls($user_list, $url_list)
  291. {
  292. $table_url_rel_user= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
  293. $result_array=array();
  294. if (is_array($user_list) && is_array($url_list)){
  295. foreach ($url_list as $url_id) {
  296. foreach ($user_list as $user_id) {
  297. $count = UrlManager::relation_url_user_exist($user_id,$url_id);
  298. if ($count==0) {
  299. $sql = "INSERT INTO $table_url_rel_user
  300. SET user_id = ".Database::escape_string($user_id).", access_url_id = ".Database::escape_string($url_id);
  301. $result = api_sql_query($sql, __FILE__, __LINE__);
  302. if($result)
  303. $result_array[$url_id][$user_id]=1;
  304. else
  305. $result_array[$url_id][$user_id]=0;
  306. }
  307. }
  308. }
  309. }
  310. return $result_array;
  311. }
  312. /**
  313. * Add a group of courses into a group of URLs
  314. * @author Julio Montoya
  315. * @param array of course ids
  316. * @param array of url_ids
  317. * */
  318. function add_courses_to_urls($course_list,$url_list)
  319. {
  320. $table_url_rel_course= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
  321. $result_array=array();
  322. if (is_array($course_list) && is_array($url_list)){
  323. foreach ($url_list as $url_id) {
  324. foreach ($course_list as $course_code) {
  325. $count = UrlManager::relation_url_course_exist($course_code,$url_id);
  326. if ($count==0) {
  327. $sql = "INSERT INTO $table_url_rel_course
  328. SET course_code = '".Database::escape_string($course_code)."', access_url_id = ".Database::escape_string($url_id);
  329. $result = api_sql_query($sql, __FILE__, __LINE__);
  330. if($result)
  331. $result_array[$url_id][$course_code]=1;
  332. else
  333. $result_array[$url_id][$course_code]=0;
  334. }
  335. }
  336. }
  337. }
  338. return $result_array;
  339. }
  340. /**
  341. * Add a group of sessions into a group of URLs
  342. * @author Julio Montoya
  343. * @param array of session ids
  344. * @param array of url_ids
  345. * */
  346. function add_sessions_to_urls($session_list,$url_list)
  347. {
  348. $table_url_rel_session= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  349. $result_array=array();
  350. if (is_array($session_list) && is_array($url_list)){
  351. foreach ($url_list as $url_id) {
  352. foreach ($session_list as $session_id) {
  353. $count = UrlManager::relation_url_session_exist($session_id,$url_id);
  354. if ($count==0) {
  355. $sql = "INSERT INTO $table_url_rel_session
  356. SET session_id = ".Database::escape_string($session_id).", access_url_id = ".Database::escape_string($url_id);
  357. $result = api_sql_query($sql, __FILE__, __LINE__);
  358. if($result)
  359. $result_array[$url_id][$session_id]=1;
  360. else
  361. $result_array[$url_id][$session_id]=0;
  362. }
  363. }
  364. }
  365. }
  366. return $result_array;
  367. }
  368. /**
  369. * Add a user into a url
  370. * @author Julio Montoya
  371. * @param user_id
  372. * @param url_id
  373. * @return boolean true if success
  374. * */
  375. function add_user_to_url($user_id, $url_id=1)
  376. {
  377. $table_url_rel_user= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
  378. if (empty($url_id)) $url_id=1;
  379. $count = UrlManager::relation_url_user_exist($user_id,$url_id);
  380. if (empty($count)) {
  381. $sql = "INSERT INTO $table_url_rel_user
  382. SET user_id = ".Database::escape_string($user_id).", access_url_id = ".Database::escape_string($url_id);
  383. $result = api_sql_query($sql, __FILE__, __LINE__);
  384. }
  385. return $result;
  386. }
  387. function add_course_to_url($course_code, $url_id=1)
  388. {
  389. $table_url_rel_course= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
  390. if (empty($url_id)) $url_id=1;
  391. $count = UrlManager::relation_url_course_exist($course_code,$url_id);
  392. if (empty($count)) {
  393. $sql = "INSERT INTO $table_url_rel_course
  394. SET course_code = '".Database::escape_string($course_code)."', access_url_id = ".Database::escape_string($url_id);
  395. $result = api_sql_query($sql, __FILE__, __LINE__);
  396. }
  397. return $result;
  398. }
  399. function add_session_to_url($session_id, $url_id=1)
  400. {
  401. $table_url_rel_session= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  402. if (empty($url_id)) $url_id=1;
  403. $count = UrlManager::relation_url_session_exist($session_id,$url_id);
  404. if (empty($count)) {
  405. $sql = "INSERT INTO $table_url_rel_session
  406. SET session_id = ".Database::escape_string($session_id).", access_url_id = ".Database::escape_string($url_id);
  407. $result = api_sql_query($sql, __FILE__, __LINE__);
  408. }
  409. return $result;
  410. }
  411. /**
  412. * Deletes an url and user relationship
  413. * @author Julio Montoya
  414. * @param int user id
  415. * @param int url id
  416. * @return boolean true if success
  417. * */
  418. function delete_url_rel_user($user_id, $url_id)
  419. {
  420. $table_url_rel_user= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
  421. $sql= "DELETE FROM $table_url_rel_user WHERE user_id = ".Database::escape_string($user_id)." AND access_url_id=".Database::escape_string($url_id)." ";
  422. $result = api_sql_query($sql, __FILE__, __LINE__);
  423. return $result;
  424. }
  425. /**
  426. * Deletes an url and course relationship
  427. * @author Julio Montoya
  428. * @param char course code
  429. * @param int url id
  430. * @return boolean true if success
  431. * */
  432. function delete_url_rel_course($course_code, $url_id)
  433. {
  434. $table_url_rel_course= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
  435. $sql= "DELETE FROM $table_url_rel_course WHERE course_code = '".Database::escape_string($course_code)."' AND access_url_id=".Database::escape_string($url_id)." ";
  436. $result = api_sql_query($sql, __FILE__, __LINE__);
  437. return $result;
  438. }
  439. /**
  440. * Deletes an url and session relationship
  441. * @author Julio Montoya
  442. * @param char course code
  443. * @param int url id
  444. * @return boolean true if success
  445. * */
  446. function delete_url_rel_session($session_id, $url_id)
  447. {
  448. $table_url_rel_session = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  449. $sql= "DELETE FROM $table_url_rel_session WHERE session_id = ".Database::escape_string($session_id)." AND access_url_id=".Database::escape_string($url_id)." ";
  450. $result = api_sql_query($sql, __FILE__, __LINE__);
  451. return $result;
  452. }
  453. /**
  454. * Updates the access_url_rel_user table with a given user list
  455. * @author Julio Montoya
  456. * @param array user list
  457. * @param int access_url_id
  458. * */
  459. function update_urls_rel_user($user_list,$access_url_id)
  460. {
  461. $table_access_url = Database :: get_main_table(TABLE_MAIN_ACCESS_URL);
  462. $table_url_rel_user = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
  463. $sql = "SELECT user_id FROM $table_url_rel_user WHERE access_url_id=".Database::escape_string($access_url_id);
  464. $result = api_sql_query($sql,__FILE__,__LINE__ );
  465. $existingUsers = array();
  466. while($row = Database::fetch_array($result)){
  467. $existingUsers[] = $row['user_id'];
  468. }
  469. //adding users
  470. foreach($user_list as $enreg_user) {
  471. if(!in_array($enreg_user, $existingUsers)) {
  472. UrlManager::add_user_to_url($enreg_user,$access_url_id);
  473. }
  474. }
  475. //deleting old users
  476. foreach($existingUsers as $existing_user) {
  477. if(!in_array($existing_user, $user_list)) {
  478. UrlManager::delete_url_rel_user($existing_user,$access_url_id);
  479. }
  480. }
  481. }
  482. /**
  483. * Updates the access_url_rel_course table with a given user list
  484. * @author Julio Montoya
  485. * @param array user list
  486. * @param int access_url_id
  487. * */
  488. function update_urls_rel_course($course_list,$access_url_id)
  489. {
  490. $table_course = Database :: get_main_table(TABLE_MAIN_COURSE);
  491. $table_url_rel_course = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
  492. $sql = "SELECT course_code FROM $table_url_rel_course WHERE access_url_id=".Database::escape_string($access_url_id);
  493. $result = api_sql_query($sql,__FILE__,__LINE__ );
  494. $existing_courses = array();
  495. while($row = Database::fetch_array($result)){
  496. $existing_courses[] = $row['course_code'];
  497. }
  498. //adding courses
  499. foreach($course_list as $course) {
  500. if(!in_array($course, $existing_courses)) {
  501. UrlManager::add_course_to_url($course,$access_url_id);
  502. }
  503. }
  504. //deleting old courses
  505. foreach($existing_courses as $existing_course) {
  506. if(!in_array($existing_course, $course_list)) {
  507. UrlManager::delete_url_rel_course($existing_course,$access_url_id);
  508. }
  509. }
  510. }
  511. /**
  512. * Updates the access_url_rel_session table with a given user list
  513. * @author Julio Montoya
  514. * @param array user list
  515. * @param int access_url_id
  516. * */
  517. function update_urls_rel_session($session_list,$access_url_id)
  518. {
  519. $table_session = Database :: get_main_table(TABLE_MAIN_SESSION);
  520. $table_url_rel_session = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
  521. $sql = "SELECT session_id FROM $table_url_rel_session WHERE access_url_id=".Database::escape_string($access_url_id);
  522. $result = api_sql_query($sql,__FILE__,__LINE__ );
  523. $existing_sessions = array();
  524. while($row = Database::fetch_array($result)){
  525. $existing_sessions[] = $row['session_id'];
  526. }
  527. //adding users
  528. foreach($session_list as $session) {
  529. if(!in_array($session, $existing_sessions)) {
  530. UrlManager::add_session_to_url($session,$access_url_id);
  531. }
  532. }
  533. //deleting old users
  534. foreach($existing_sessions as $existing_session) {
  535. if(!in_array($existing_session, $session_list)) {
  536. UrlManager::delete_url_rel_session($existing_session,$access_url_id);
  537. }
  538. }
  539. }
  540. function get_access_url_from_user($user_id) {
  541. $table_url_rel_user = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
  542. $table_url = Database :: get_main_table(TABLE_MAIN_ACCESS_URL);
  543. $sql = "SELECT url, access_url_id FROM $table_url_rel_user url_rel_user INNER JOIN $table_url u
  544. ON (url_rel_user.access_url_id = u.id)
  545. WHERE user_id = ".Database::escape_string($user_id);
  546. $result = api_sql_query($sql, __FILE__, __LINE__);
  547. $url_list = api_store_result($result);
  548. return $url_list;
  549. }
  550. /**
  551. *
  552. * */
  553. function get_url_id($url)
  554. {
  555. $table_access_url= Database :: get_main_table(TABLE_MAIN_ACCESS_URL);
  556. $sql = "SELECT id FROM $table_access_url WHERE url = '".Database::escape_string($url)."'";
  557. $result = api_sql_query($sql);
  558. $access_url_id = Database::result($result, 0, 0);
  559. return $access_url_id;
  560. }
  561. }
  562. ?>