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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(__DIR__ . '/../../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->navbar->includesettingsbase = true;
  56      $PAGE->navigation->extend_for_user($user);
  57      $PAGE->set_context(context_course::instance($course->id));
  58  } else {
  59      $PAGE->set_context($context);
  60  }
  61  
  62  $PAGE->set_context($context);
  63  
  64  $courseid = $course->id;
  65  $contextname = $context->get_context_name();
  66  
  67  // Get the user_selector we will need.
  68  // Teachers within a course just get to see the same list of enrolled users.
  69  // Admins (people with moodle/role:manage) can run this report for any user.
  70  $options = array('accesscontext' => $context);
  71  $userselector = new core_role_check_users_selector('reportuser', $options);
  72  $userselector->set_rows(20);
  73  
  74  // Work out an appropriate page title.
  75  $title = get_string('checkpermissionsin', 'core_role', $contextname);
  76  
  77  $PAGE->set_pagelayout('admin');
  78  $PAGE->set_title($title);
  79  
  80  switch ($context->contextlevel) {
  81      case CONTEXT_SYSTEM:
  82          require_once($CFG->libdir.'/adminlib.php');
  83          admin_externalpage_setup('checkpermissions', '', array('contextid' => $contextid));
  84          break;
  85      case CONTEXT_USER:
  86          $fullname = fullname($user, has_capability('moodle/site:viewfullnames', $context));
  87          $PAGE->set_heading($fullname);
  88          $showroles = 1;
  89          break;
  90      case CONTEXT_COURSECAT:
  91          $PAGE->set_heading($SITE->fullname);
  92          break;
  93      case CONTEXT_COURSE:
  94          if ($isfrontpage) {
  95              $PAGE->set_heading(get_string('frontpage', 'admin'));
  96          } else {
  97              $PAGE->set_heading($course->fullname);
  98          }
  99          break;
 100      case CONTEXT_MODULE:
 101          $PAGE->set_heading($context->get_context_name(false));
 102          $PAGE->set_cacheable(false);
 103          break;
 104      case CONTEXT_BLOCK:
 105          $PAGE->set_heading($PAGE->course->fullname);
 106          break;
 107  }
 108  
 109  // Get the list of the reported-on user's role assignments - must be after
 110  // the page setup code above, or the language might be wrong.
 111  $reportuser = $userselector->get_selected_user();
 112  if (!is_null($reportuser)) {
 113      $roleassignments = get_user_roles_with_special($context, $reportuser->id);
 114      $rolenames = role_get_names($context);
 115  }
 116  
 117  echo $OUTPUT->header();
 118  
 119  // Print heading.
 120  echo $OUTPUT->heading($title);
 121  
 122  // If a user has been chosen, show all the permissions for this user.
 123  if (!is_null($reportuser)) {
 124      echo $OUTPUT->box_start('generalbox boxaligncenter boxwidthwide');
 125  
 126      if (!empty($roleassignments)) {
 127          echo $OUTPUT->heading(get_string('rolesforuser', 'core_role', fullname($reportuser)), 3);
 128          echo html_writer::start_tag('ul');
 129  
 130          $systemcontext = context_system::instance();
 131          foreach ($roleassignments as $ra) {
 132              $racontext = context::instance_by_id($ra->contextid);
 133              $link = html_writer::link($racontext->get_url(), $racontext->get_context_name());
 134  
 135              $rolename = $rolenames[$ra->roleid]->localname;
 136              if (has_capability('moodle/role:manage', $systemcontext)) {
 137                  $rolename = html_writer::link(new moodle_url('/admin/roles/define.php',
 138                          array('action' => 'view', 'roleid' => $ra->roleid)), $rolename);
 139              }
 140  
 141              echo html_writer::tag('li', get_string('roleincontext', 'core_role',
 142                      array('role' => $rolename, 'context' => $link)));
 143          }
 144          echo html_writer::end_tag('ul');
 145      }
 146  
 147      echo $OUTPUT->heading(get_string('permissionsforuser', 'core_role', fullname($reportuser)), 3);
 148      $table = new core_role_check_capability_table($context, $reportuser, $contextname);
 149      $table->display();
 150      echo $OUTPUT->box_end();
 151  
 152      $selectheading = get_string('selectanotheruser', 'core_role');
 153  } else {
 154      $selectheading = get_string('selectauser', 'core_role');
 155  }
 156  
 157  // Show UI for choosing a user to report on.
 158  echo $OUTPUT->box_start('generalbox boxwidthnormal boxaligncenter', 'chooseuser');
 159  echo '<form method="get" action="' . $CFG->wwwroot . '/' . $CFG->admin . '/roles/check.php" >';
 160  
 161  // Hidden fields.
 162  echo '<input type="hidden" name="contextid" value="' . $context->id . '" />';
 163  if (!empty($user->id)) {
 164      echo '<input type="hidden" name="userid" value="' . $user->id . '" />';
 165  }
 166  if ($isfrontpage) {
 167      echo '<input type="hidden" name="courseid" value="' . $courseid . '" />';
 168  }
 169  
 170  // User selector.
 171  echo $OUTPUT->heading('<label for="reportuser">' . $selectheading . '</label>', 3);
 172  $userselector->display();
 173  
 174  // Submit button and the end of the form.
 175  echo '<p id="chooseusersubmit"><input type="submit" value="' . get_string('showthisuserspermissions', 'core_role') . '" /></p>';
 176  echo '</form>';
 177  echo $OUTPUT->box_end();
 178  
 179  // Appropriate back link.
 180  if ($context->contextlevel > CONTEXT_USER) {
 181      echo html_writer::start_tag('div', array('class'=>'backlink'));
 182      echo html_writer::tag('a', get_string('backto', '', $contextname), array('href'=>$context->get_url()));
 183      echo html_writer::end_tag('div');
 184  }
 185  
 186  echo $OUTPUT->footer();
 187