backup/restorefile.php

   1 <?php
   2
   3 // This file is part of Moodle - http://moodle.org/
   4 //
   5 // Moodle is free software: you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation, either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // Moodle is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 /**
  19  * Import backup file or select existing backup file from moodle
  20  * @package   moodlecore
  21  * @copyright 2010 Dongsheng Cai <dongsheng@moodle.com>
  22  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  */
  24
  25 require_once('../config.php');
  26 require_once(__DIR__ . '/restorefile_form.php');
  27 require_once($CFG->dirroot . '/backup/util/includes/restore_includes.php');
  28
  29 // current context
  30 $contextid = required_param('contextid', PARAM_INT);
  31 $filecontextid = optional_param('filecontextid', 0, PARAM_INT);
  32 // action
  33 $action = optional_param('action', '', PARAM_ALPHA);
  34 // file parameters
  35 // non js interface may require these parameters
  36 $component  = optional_param('component', null, PARAM_COMPONENT);
  37 $filearea   = optional_param('filearea', null, PARAM_AREA);
  38 $itemid     = optional_param('itemid', null, PARAM_INT);
  39 $filepath   = optional_param('filepath', null, PARAM_PATH);
  40 $filename   = optional_param('filename', null, PARAM_FILE);
  41
  42 list($context, $course, $cm) = get_context_info_array($contextid);
  43
  44 // will be used when restore
  45 if (!empty($filecontextid)) {
  46     $filecontext = context::instance_by_id($filecontextid);
  47 }
  48
  49 $url = new moodle_url('/backup/restorefile.php', array('contextid'=>$contextid));
  50
  51 switch ($context->contextlevel) {
  52     case CONTEXT_MODULE:
  53         $heading = get_string('restoreactivity', 'backup');
  54         break;
  55     case CONTEXT_COURSE:
  56     default:
  57         $heading = get_string('restorecourse', 'backup');
  58 }
  59
  60
  61 require_login($course, false, $cm);
  62 require_capability('moodle/restore:restorecourse', $context);
  63
  64 if (is_null($course)) {
  65     $courseid = 0;
  66     $coursefullname = $SITE->fullname;
  67 } else {
  68     $courseid = $course->id;
  69     $coursefullname = $course->fullname;
  70 }
  71
  72 $browser = get_file_browser();
  73
  74 // check if tmp dir exists
  75 $tmpdir = $CFG->tempdir . '/backup';
  76 if (!check_dir_exists($tmpdir, true, true)) {
  77     throw new restore_controller_exception('cannot_create_backup_temp_dir');
  78 }
  79
  80 // choose the backup file from backup files tree
  81 if ($action == 'choosebackupfile') {
  82     if ($filearea == 'automated') {
  83         require_capability('moodle/restore:viewautomatedfilearea', $context);
  84     }
  85     if ($fileinfo = $browser->get_file_info($filecontext, $component, $filearea, $itemid, $filepath, $filename)) {
  86         if (is_a($fileinfo, 'file_info_stored')) {
  87             // Use the contenthash rather than copying the file where possible,
  88             // to improve performance and avoid timeouts with large files.
  89             $fs = get_file_storage();
  90             $params = $fileinfo->get_params();
  91             $file = $fs->get_file($params['contextid'], $params['component'], $params['filearea'],
  92                     $params['itemid'], $params['filepath'], $params['filename']);
  93             $restore_url = new moodle_url('/backup/restore.php', array('contextid' => $contextid,
  94                     'pathnamehash' => $file->get_pathnamehash(), 'contenthash' => $file->get_contenthash()));
  95         } else {
  96             // If it's some weird other kind of file then use old code.
  97             $filename = restore_controller::get_tempdir_name($courseid, $USER->id);
  98             $pathname = $tmpdir . '/' . $filename;
  99             if (!$fileinfo->copy_to_pathname($pathname)) {
 100                 throw new restore_ui_exception('errorcopyingbackupfile', null, $pathname);
 101             }
 102             $restore_url = new moodle_url('/backup/restore.php', array(
 103                     'contextid' => $contextid, 'filename' => $filename));
 104         }
 105         redirect($restore_url);
 106     } else {
 107         redirect($url, get_string('filenotfound', 'error'));
 108     }
 109     die;
 110 }
 111
 112 $PAGE->set_url($url);
 113 $PAGE->set_context($context);
 114 $PAGE->set_title(get_string('course') . ': ' . $coursefullname);
 115 $PAGE->set_heading($heading);
 116 $PAGE->set_pagelayout('admin');
 117
 118 $form = new course_restore_form(null, array('contextid'=>$contextid));
 119 $data = $form->get_data();
 120 if ($data && has_capability('moodle/restore:uploadfile', $context)) {
 121     $filename = restore_controller::get_tempdir_name($courseid, $USER->id);
 122     $pathname = $tmpdir . '/' . $filename;
 123     if (!$form->save_file('backupfile', $pathname)) {
 124         throw new restore_ui_exception('errorcopyingbackupfile', null, $pathname);
 125     }
 126     $restore_url = new moodle_url('/backup/restore.php', array('contextid'=>$contextid, 'filename'=>$filename));
 127     redirect($restore_url);
 128     die;
 129 }
 130
 131
 132
 133 echo $OUTPUT->header();
 134
 135 // require uploadfile cap to use file picker
 136 if (has_capability('moodle/restore:uploadfile', $context)) {
 137     echo $OUTPUT->heading(get_string('importfile', 'backup'));
 138     echo $OUTPUT->container_start();
 139     $form->display();
 140     echo $OUTPUT->container_end();
 141 }
 142
 143 if ($context->contextlevel == CONTEXT_MODULE) {
 144     echo $OUTPUT->heading_with_help(get_string('choosefilefromactivitybackup', 'backup'), 'choosefilefromuserbackup', 'backup');
 145     echo $OUTPUT->container_start();
 146     $treeview_options = array();
 147     $user_context = context_user::instance($USER->id);
 148     $treeview_options['filecontext'] = $context;
 149     $treeview_options['currentcontext'] = $context;
 150     $treeview_options['component']   = 'backup';
 151     $treeview_options['context']     = $context;
 152     $treeview_options['filearea']    = 'activity';
 153     $renderer = $PAGE->get_renderer('core', 'backup');
 154     echo $renderer->backup_files_viewer($treeview_options);
 155     echo $OUTPUT->container_end();
 156 }
 157
 158 echo $OUTPUT->heading_with_help(get_string('choosefilefromcoursebackup', 'backup'), 'choosefilefromcoursebackup', 'backup');
 159 echo $OUTPUT->container_start();
 160 $treeview_options = array();
 161 $treeview_options['filecontext'] = $context;
 162 $treeview_options['currentcontext'] = $context;
 163 $treeview_options['component']   = 'backup';
 164 $treeview_options['context']     = $context;
 165 $treeview_options['filearea']    = 'course';
 166 $renderer = $PAGE->get_renderer('core', 'backup');
 167 echo $renderer->backup_files_viewer($treeview_options);
 168 echo $OUTPUT->container_end();
 169
 170 echo $OUTPUT->heading_with_help(get_string('choosefilefromuserbackup', 'backup'), 'choosefilefromuserbackup', 'backup');
 171 echo $OUTPUT->container_start();
 172 $treeview_options = array();
 173 $user_context = context_user::instance($USER->id);
 174 $treeview_options['filecontext'] = $user_context;
 175 $treeview_options['currentcontext'] = $context;
 176 $treeview_options['component']   = 'user';
 177 $treeview_options['context']     = 'backup';
 178 $treeview_options['filearea']    = 'backup';
 179 $renderer = $PAGE->get_renderer('core', 'backup');
 180 echo $renderer->backup_files_viewer($treeview_options);
 181 echo $OUTPUT->container_end();
 182
 183 $automatedbackups = get_config('backup', 'backup_auto_active');
 184 if (!empty($automatedbackups)) {
 185     echo $OUTPUT->heading_with_help(get_string('choosefilefromautomatedbackup', 'backup'), 'choosefilefromautomatedbackup', 'backup');
 186     echo $OUTPUT->container_start();
 187     $treeview_options = array();
 188     $user_context = context_user::instance($USER->id);
 189     $treeview_options['filecontext'] = $context;
 190     $treeview_options['currentcontext'] = $context;
 191     $treeview_options['component']   = 'backup';
 192     $treeview_options['context']     = $context;
 193     $treeview_options['filearea']    = 'automated';
 194     $renderer = $PAGE->get_renderer('core', 'backup');
 195     echo $renderer->backup_files_viewer($treeview_options);
 196     echo $OUTPUT->container_end();
 197 }
 198
 199 echo $OUTPUT->footer();