mod/wiki/overridelock.php

   1 <?php
   2 /**
   3  * Handles what happens when a user with appropriate permission attempts to
   4  * override a wiki page editing lock.
   5  *
   6  * @copyright &copy; 2006 The Open University
   7  * @author s.marshall@open.ac.uk
   8  * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
   9  * @package package_name
  10  *//** */
  11
  12 require_once('../../config.php');
  13
  14 $id=required_param('id',PARAM_INT);
  15 $page=required_param('page',PARAM_RAW);
  16
  17 if (! $cm = get_coursemodule_from_id('wiki', $id)) {
  18     error("Course Module ID was incorrect");
  19 }
  20 if (! $course = get_record("course", "id", $cm->course)) {
  21     error("Course is misconfigured");
  22 }
  23 if (! $wiki = get_record("wiki", "id", $cm->instance)) {
  24     error("Course module is incorrect");
  25 }
  26
  27 if(!confirm_sesskey()) {
  28     error("Session key not set");
  29 }
  30 if(!data_submitted()) {
  31     error("Only POST requests accepted");
  32 }
  33
  34 require_course_login($course, true, $cm);
  35
  36 $modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
  37 if(!has_capability('mod/wiki:overridelock', $modcontext)) {
  38     error("You do not have the capability to override editing locks");
  39 }
  40
  41 $actions = explode('/', $page,2);
  42 if(count($actions)!=2) {
  43     error("Unsupported page value");
  44 }
  45 $pagename=addslashes($actions[1]);
  46 if(!delete_records('wiki_locks','pagename',$pagename,'wikiid', $wiki->id)) {
  47     error('Unable to delete lock record');
  48 }
  49
  50 redirect("view.php?id=$id&page=".urlencode($page));
  51 ?>