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   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  /**
  18   * Shows the result of has_capability for every capability for a user in a context.
  19   *
  20   * @package    core_role
  21   * @copyright  1999 onwards Martin Dougiamas (http://dougiamas.com)
  22   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  
  25  require_once(dirname(__FILE__) . '/../../config.php');
  26  
  27  $contextid = required_param('contextid', PARAM_INT);
  28  
  29  list($context, $course, $cm) = get_context_info_array($contextid);
  30  
  31  $url = new moodle_url('/admin/roles/check.php', array('contextid' => $contextid));
  32  
  33  if ($course) {
  34      $isfrontpage = ($course->id == SITEID);
  35  } else {
  36      $isfrontpage = false;
  37      if ($context->contextlevel == CONTEXT_USER) {
  38          $course = $DB->get_record('course', array('id'=>optional_param('courseid', SITEID, PARAM_INT)), '*', MUST_EXIST);
  39          $user = $DB->get_record('user', array('id'=>$context->instanceid), '*', MUST_EXIST);
  40          $url->param('courseid', $course->id);
  41          $url->param('userid', $user->id);
  42      } else {
  43          $course = $SITE;
  44      }
  45  }
  46  
  47  // Security first.
  48  require_login($course, false, $cm);
  49  if (!has_any_capability(array('moodle/role:assign', 'moodle/role:safeoverride', 'moodle/role:override', 'moodle/role:manage'), $context)) {
  50      print_error('nopermissions', 'error', '', get_string('checkpermissions', 'core_role'));
  51  }
  52  $PAGE->set_url($url);
  53  
  54  if ($context->contextlevel == CONTEXT_USER and $USER->id != $context->instanceid) {
  55      $PAGE->navigation->extend_for_user($user);
  56      $PAGE->set_context(context_course::instance($course->id));
  57  } else {
  58      $PAGE->set_context($context);
  59  }
  60  
  61  $PAGE->set_context($context);
  62  
  63  $courseid = $course->id;
  64  $contextname = $context->get_context_name();
  65  
  66  // Get the user_selector we will need.
  67  // Teachers within a course just get to see the same list of enrolled users.
  68  // Admins (people with moodle/role:manage) can run this report for any user.
  69  $options = array('accesscontext' => $context);
  70  $userselector = new core_role_check_users_selector('reportuser', $options);
  71  $userselector->set_rows(20);
  72  
  73  // Work out an appropriate page title.
  74  $title = get_string('checkpermissionsin', 'core_role', $contextname);
  75  
  76  $PAGE->set_pagelayout('admin');
  77  $PAGE->set_title($title);
  78  
  79  switch ($context->contextlevel) {
  80      case CONTEXT_SYSTEM:
  81          require_once($CFG->libdir.'/adminlib.php');
  82          admin_externalpage_setup('checkpermissions', '', array('contextid' => $contextid));
  83          break;
  84      case CONTEXT_USER:
  85          $fullname = fullname($user, has_capability('moodle/site:viewfullnames', $context));
  86          $PAGE->set_heading($fullname);
  87          $showroles = 1;
  88          break;
  89      case CONTEXT_COURSECAT:
  90          $PAGE->set_heading($SITE->fullname);
  91          break;
  92      case CONTEXT_COURSE:
  93          if ($isfrontpage) {
  94              $PAGE->set_heading(get_string('frontpage', 'admin'));
  95          } else {
  96              $PAGE->set_heading($course->fullname);
  97          }
  98          break;
  99      case CONTEXT_MODULE:
 100          $PAGE->set_heading($context->get_context_name(false));
 101          $PAGE->set_cacheable(false);
 102          break;
 103      case CONTEXT_BLOCK:
 104          $PAGE->set_heading($PAGE->course->fullname);
 105          break;
 106  }
 107  
 108  // Get the list of the reported-on user's role assignments - must be after
 109  // the page setup code above, or the language might be wrong.
 110  $reportuser = $userselector->get_selected_user();
 111  if (!is_null($reportuser)) {
 112      $roleassignments = get_user_roles_with_special($context, $reportuser->id);
 113      $rolenames = role_get_names($context);
 114  }
 115  
 116  echo $OUTPUT->header();
 117  
 118  // Print heading.
 119  echo $OUTPUT->heading($title);
 120  
 121  // If a user has been chosen, show all the permissions for this user.
 122  if (!is_null($reportuser)) {
 123      echo $OUTPUT->box_start('generalbox boxaligncenter boxwidthwide');
 124  
 125      if (!empty($roleassignments)) {
 126          echo $OUTPUT->heading(get_string('rolesforuser', 'core_role', fullname($reportuser)), 3);
 127          echo html_writer::start_tag('ul');
 128  
 129          $systemcontext = context_system::instance();
 130          foreach ($roleassignments as $ra) {
 131              $racontext = context::instance_by_id($ra->contextid);
 132              $link = html_writer::link($racontext->get_url(), $racontext->get_context_name());
 133  
 134              $rolename = $rolenames[$ra->roleid]->localname;
 135              if (has_capability('moodle/role:manage', $systemcontext)) {
 136                  $rolename = html_writer::link(new moodle_url('/admin/roles/define.php',
 137                          array('action' => 'view', 'roleid' => $ra->roleid)), $rolename);
 138              }
 139  
 140              echo html_writer::tag('li', get_string('roleincontext', 'core_role',
 141                      array('role' => $rolename, 'context' => $link)));
 142          }
 143          echo html_writer::end_tag('ul');
 144      }
 145  
 146      echo $OUTPUT->heading(get_string('permissionsforuser', 'core_role', fullname($reportuser)), 3);
 147      $table = new core_role_check_capability_table($context, $reportuser, $contextname);
 148      $table->display();
 149      echo $OUTPUT->box_end();
 150  
 151      $selectheading = get_string('selectanotheruser', 'core_role');
 152  } else {
 153      $selectheading = get_string('selectauser', 'core_role');
 154  }
 155  
 156  // Show UI for choosing a user to report on.
 157  echo $OUTPUT->box_start('generalbox boxwidthnormal boxaligncenter', 'chooseuser');
 158  echo '<form method="get" action="' . $CFG->wwwroot . '/' . $CFG->admin . '/roles/check.php" >';
 159  
 160  // Hidden fields.
 161  echo '<input type="hidden" name="contextid" value="' . $context->id . '" />';
 162  if (!empty($user->id)) {
 163      echo '<input type="hidden" name="userid" value="' . $user->id . '" />';
 164  }
 165  if ($isfrontpage) {
 166      echo '<input type="hidden" name="courseid" value="' . $courseid . '" />';
 167  }
 168  
 169  // User selector.
 170  echo $OUTPUT->heading('<label for="reportuser">' . $selectheading . '</label>', 3);
 171  $userselector->display();
 172  
 173  // Submit button and the end of the form.
 174  echo '<p id="chooseusersubmit"><input type="submit" value="' . get_string('showthisuserspermissions', 'core_role') . '" /></p>';
 175  echo '</form>';
 176  echo $OUTPUT->box_end();
 177  
 178  // Appropriate back link.
 179  if ($context->contextlevel > CONTEXT_USER) {
 180      echo html_writer::start_tag('div', array('class'=>'backlink'));
 181      echo html_writer::tag('a', get_string('backto', '', $contextname), array('href'=>$context->get_url()));
 182      echo html_writer::end_tag('div');
 183  }
 184  
 185  echo $OUTPUT->footer();
 186