error/index.php

   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  * Moodle 404 Error page
  19  *
  20  * This is for 404 error pages served by the webserver and then passed
  21  * to Moodle to be rendered using the site theme.
  22  *
  23  * ErrorDocument 404 /error/index.php
  24  *
  25  * @package    core
  26  * @copyright  2020 Brendan Heywood <brendan@catalyst-au.net>
  27  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  28  */
  29
  30 // @codingStandardsIgnoreStart
  31 require('../config.php');
  32 // @codingStandardsIgnoreEnd
  33
  34 $context = context_system::instance();
  35 $title = get_string('pagenotexisttitle', 'error');
  36 $PAGE->set_url('/error/index.php');
  37 $PAGE->set_context($context);
  38 $PAGE->set_title($title);
  39 $PAGE->set_heading($title);
  40 $PAGE->navbar->add($title);
  41
  42 // This allows the webserver to dictate wether the http status should remain
  43 // what it would have been, or force it to be a 404. Under other conditions
  44 // it could most often be a 403, 405 or a 50x error.
  45 $code = optional_param('code', 0, PARAM_INT);
  46 if ($code == 404) {
  47     header("HTTP/1.0 404 Not Found");
  48 }
  49
  50 $canmessage = has_capability('moodle/site:senderrormessage', $context);
  51
  52 $supportuser = core_user::get_support_user();
  53
  54 // We can only message support if both the user has the capability
  55 // and the support user is a real user.
  56 if ($canmessage) {
  57     $canmessage = core_user::is_real_user($supportuser->id);
  58 }
  59
  60 $mform = new \core\form\error_feedback($CFG->wwwroot . '/error/index.php');
  61
  62 if ($data = $mform->get_data()) {
  63
  64     if (!$canmessage) {
  65         redirect($CFG->wwwroot);
  66     }
  67
  68     // Send the message and redirect.
  69     $message = new \core\message\message();
  70     $message->courseid         = SITEID;
  71     $message->component        = 'moodle';
  72     $message->name             = 'errors';
  73     $message->userfrom          = $USER;
  74     $message->userto            = core_user::get_support_user();
  75     $message->subject           = 'Error: '. $data->referer .' -> '. $data->requested;
  76     $message->fullmessage       = $data->text;
  77     $message->fullmessageformat = FORMAT_PLAIN;
  78     $message->fullmessagehtml   = '';
  79     $message->smallmessage      = '';
  80     $message->contexturl = $data->requested;
  81     message_send($message);
  82
  83     redirect($CFG->wwwroot, get_string('sendmessagesent', 'error', $data->requested), 5);
  84     exit;
  85 }
  86
  87 echo $OUTPUT->header();
  88 echo $OUTPUT->notification(get_string('pagenotexist', 'error', s($ME)), 'error');
  89
  90 if (!empty($CFG->supportpage)) {
  91     echo \html_writer::tag('h4', get_string('supportpage', 'admin'));
  92     $link = \html_writer::link($CFG->supportpage, $CFG->supportpage);
  93     echo \html_writer::tag('p', $link);
  94 }
  95 if (!empty($CFG->supportemail)) {
  96     echo \html_writer::tag('h4', get_string('supportemail', 'admin'));
  97     $link = \html_writer::link('mailto:' . $CFG->supportemail, $CFG->supportemail);
  98     echo \html_writer::tag('p', $link);
  99 }
 100
 101 if ($canmessage) {
 102     echo \html_writer::tag('h4', get_string('sendmessage', 'error'));
 103     $mform->display();
 104 } else {
 105     echo $OUTPUT->continue_button($CFG->wwwroot);
 106 }
 107
 108 echo $OUTPUT->footer();
 109