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 mod-wiki
  10  * @category mod
  11  *//** */
  12
  13 require_once('../../config.php');
  14
  15 $id=required_param('id',PARAM_INT);
  16 $page=required_param('page',PARAM_RAW);
  17
  18 if (! $cm = get_coursemodule_from_id('wiki', $id)) {
  19     error("Course Module ID was incorrect");
  20 }
  21 if (! $course = get_record("course", "id", $cm->course)) {
  22     error("Course is misconfigured");
  23 }
  24 if (! $wiki = get_record("wiki", "id", $cm->instance)) {
  25     error("Course module is incorrect");
  26 }
  27
  28 if(!confirm_sesskey()) {
  29     error("Session key not set");
  30 }
  31 if(!data_submitted()) {
  32     error("Only POST requests accepted");
  33 }
  34
  35 require_course_login($course, true, $cm);
  36
  37 $modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
  38 if(!has_capability('mod/wiki:overridelock', $modcontext)) {
  39     error("You do not have the capability to override editing locks");
  40 }
  41
  42 $actions = explode('/', $page,2);
  43 if(count($actions)!=2) {
  44     error("Unsupported page value");
  45 }
  46 $pagename=addslashes($actions[1]);
  47 if(!delete_records('wiki_locks','pagename',$pagename,'wikiid', $wiki->id)) {
  48     error('Unable to delete lock record');
  49 }
  50
  51 redirect("view.php?id=$id&page=".urlencode($page));
  52 ?>