repository/draftfiles_manager.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
  20 //
  21 // NOTE TO ALL DEVELOPERS: this script must deal only with draft area of current user, it has to use only file_storage and no file_browser!!
  22 //
  23
  24
  25 /**
  26  * This file is used to manage draft files in non-javascript browsers
  27  *
  28  * @since 2.0
  29  * @package    core
  30  * @subpackage repository
  31  * @copyright  2010 Dongsheng Cai <dongsheng@moodle.com>
  32  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  33  */
  34
  35 require_once('../config.php');
  36 require_once($CFG->libdir.'/filelib.php');
  37 require_once('lib.php');
  38
  39 require_sesskey();
  40 require_login();
  41
  42 // disable blocks in this page
  43 $PAGE->set_pagelayout('embedded');
  44
  45 // general parameters
  46 $action      = optional_param('action', '',        PARAM_ALPHA);
  47 $itemid      = optional_param('itemid', '',        PARAM_INT);
  48
  49 // parameters for repository
  50 $contextid   = optional_param('ctx_id',    SYSCONTEXTID, PARAM_INT);    // context ID
  51 $courseid    = optional_param('course',    SITEID, PARAM_INT);    // course ID
  52 $env         = optional_param('env', 'filepicker', PARAM_ALPHA);  // opened in file picker, file manager or html editor
  53 $filename    = optional_param('filename', '',      PARAM_FILE);
  54 $targetpath  = optional_param('targetpath', '',    PARAM_PATH);
  55 $maxfiles    = optional_param('maxfiles', -1, PARAM_INT);    // maxfiles
  56 $maxbytes    = optional_param('maxbytes',  0, PARAM_INT);    // maxbytes
  57 $subdirs     = optional_param('subdirs',  0, PARAM_INT);    // maxbytes
  58 $areamaxbytes = optional_param('areamaxbytes', FILE_AREA_MAX_BYTES_UNLIMITED, PARAM_INT);    // Area maxbytes.
  59
  60 // draft area
  61 $newdirname  = optional_param('newdirname', '',    PARAM_FILE);
  62 $newfilename = optional_param('newfilename', '',   PARAM_FILE);
  63 // path in draft area
  64 $draftpath   = optional_param('draftpath', '/',    PARAM_PATH);
  65
  66 // user context
  67 $user_context = context_user::instance($USER->id);
  68
  69
  70 $PAGE->set_context($user_context);
  71
  72 $fs = get_file_storage();
  73
  74 $params = array('ctx_id' => $contextid, 'itemid' => $itemid, 'env' => $env, 'course'=>$courseid, 'maxbytes'=>$maxbytes, 'areamaxbytes'=>$areamaxbytes, 'maxfiles'=>$maxfiles, 'subdirs'=>$subdirs, 'sesskey'=>sesskey());
  75 $PAGE->set_url('/repository/draftfiles_manager.php', $params);
  76 $filepicker_url = new moodle_url($CFG->httpswwwroot."/repository/filepicker.php", $params);
  77
  78 $params['action'] = 'browse';
  79 $home_url = new moodle_url('/repository/draftfiles_manager.php', $params);
  80
  81 switch ($action) {
  82
  83     // delete draft files
  84 case 'deletedraft':
  85     if ($file = $fs->get_file($user_context->id, 'user', 'draft', $itemid, $draftpath, $filename)) {
  86         if ($file->is_directory()) {
  87             $pathname = $draftpath;
  88             if ($file->get_parent_directory()) {
  89                 $draftpath = $file->get_parent_directory()->get_filepath();
  90             } else {
  91                 $draftpath = '/';
  92             }
  93
  94             // delete files in folder
  95             $files = $fs->get_directory_files($user_context->id, 'user', 'draft', $itemid, $pathname, true);
  96             foreach ($files as $storedfile) {
  97                 $storedfile->delete();
  98             }
  99             $file->delete();
 100         } else {
 101             $file->delete();
 102         }
 103         $home_url->param('draftpath', $draftpath);
 104         $home_url->param('action', 'browse');
 105         redirect($home_url);
 106     }
 107     break;
 108
 109 case 'renameform':
 110     echo $OUTPUT->header();
 111     echo '<div><a href="' . $home_url->out() . '">'.get_string('back', 'repository')."</a></div>";
 112     $home_url->param('draftpath', $draftpath);
 113     $home_url->param('action', 'rename');
 114     echo ' <form method="post" action="'.$home_url->out().'">';
 115     echo html_writer::label(get_string('enternewname', 'repository'), 'newfilename', array('class' => 'accesshide'));
 116     echo '  <input id="newfilename" name="newfilename" type="text" value="'.s($filename).'" />';
 117     echo '  <input name="filename" type="hidden" value="'.s($filename).'" />';
 118     echo '  <input name="draftpath" type="hidden" value="'.s($draftpath).'" />';
 119     echo '  <input type="submit" value="'.s(get_string('rename', 'moodle')).'" />';
 120     echo ' </form>';
 121     echo $OUTPUT->footer();
 122     break;
 123
 124 case 'rename':
 125
 126     if ($fs->file_exists($user_context->id, 'user', 'draft', $itemid, $draftpath, $newfilename)) {
 127         print_error('fileexists');
 128     } else if ($file = $fs->get_file($user_context->id, 'user', 'draft', $itemid, $draftpath, $filename)) {
 129         $newfile = $fs->create_file_from_storedfile(array('filename'=>$newfilename), $file);
 130         $file->delete();
 131     }
 132
 133     $home_url->param('action', 'browse');
 134     $home_url->param('draftpath', $draftpath);
 135     redirect($home_url);
 136     break;
 137
 138 case 'downloaddir':
 139     $zipper = new zip_packer();
 140
 141     $file = $fs->get_file($user_context->id, 'user', 'draft', $itemid, $draftpath, '.');
 142     if ($draftpath === '/') {
 143         $filename = get_string('files').'.zip';
 144     } else {
 145         $filename = explode('/', trim($draftpath, '/'));
 146         $filename = array_pop($filename) . '.zip';
 147     }
 148
 149     $newdraftitemid = file_get_unused_draft_itemid();
 150     if ($newfile = $zipper->archive_to_storage(array('/' => $file), $user_context->id, 'user', 'draft', $newdraftitemid, '/', $filename, $USER->id)) {
 151         $fileurl = moodle_url::make_draftfile_url($newdraftitemid, '/', $filename)->out();
 152         header('Location: ' . $fileurl);
 153     } else {
 154         print_error('cannotdownloaddir', 'repository');
 155     }
 156     break;
 157
 158 case 'zip':
 159     $zipper = new zip_packer();
 160
 161     $file = $fs->get_file($user_context->id, 'user', 'draft', $itemid, $draftpath, '.');
 162     if (!$file->get_parent_directory()) {
 163         $parent_path = '/';
 164         $filepath = '/';
 165         $filename = get_string('files').'.zip';
 166     } else {
 167         $parent_path = $file->get_parent_directory()->get_filepath();
 168         $filepath = explode('/', trim($file->get_filepath(), '/'));
 169         $filepath = array_pop($filepath);
 170         $filename = $filepath.'.zip';
 171     }
 172
 173     $filename = repository::get_unused_filename($itemid, $parent_path, $filename);
 174     $newfile = $zipper->archive_to_storage(array($filepath => $file), $user_context->id, 'user', 'draft', $itemid, $parent_path, $filename, $USER->id);
 175
 176     $home_url->param('action', 'browse');
 177     $home_url->param('draftpath', $parent_path);
 178     redirect($home_url, get_string('ziped', 'repository'));
 179     break;
 180
 181 case 'unzip':
 182     $zipper = new zip_packer();
 183     $file = $fs->get_file($user_context->id, 'user', 'draft', $itemid, $draftpath, $filename);
 184
 185     if ($newfile = $file->extract_to_storage($zipper, $user_context->id, 'user', 'draft', $itemid, $draftpath, $USER->id)) {
 186         $str = get_string('unzipped', 'repository');
 187     } else {
 188         $str = get_string('cannotunzip', 'error');
 189     }
 190     $home_url->param('action', 'browse');
 191     $home_url->param('draftpath', $draftpath);
 192     redirect($home_url, $str);
 193     break;
 194
 195 case 'movefile':
 196     if (!empty($targetpath)) {
 197         if ($fs->file_exists($user_context->id, 'user', 'draft', $itemid, $targetpath, $filename)) {
 198             print_error('cannotmovefile');
 199         } else if ($file = $fs->get_file($user_context->id, 'user', 'draft', $itemid, $draftpath, $filename)) {
 200             $newfile = $fs->create_file_from_storedfile(array('filepath'=>$targetpath), $file);
 201             $file->delete();
 202         } else {
 203             var_dump('cannot find file');
 204             die;
 205         }
 206         $home_url->param('action', 'browse');
 207         $home_url->param('draftpath', $targetpath);
 208         redirect($home_url);
 209     }
 210     echo $OUTPUT->header();
 211
 212     echo $OUTPUT->container_start();
 213     echo html_writer::link($home_url, get_string('back', 'repository'));
 214     echo $OUTPUT->container_end();
 215
 216     $data = new stdClass();
 217     $home_url->param('action', 'movefile');
 218     $home_url->param('draftpath', $draftpath);
 219     $home_url->param('filename', $filename);
 220     file_get_drafarea_folders($itemid, '/', $data);
 221     print_draft_area_tree($data, true, $home_url);
 222     echo $OUTPUT->footer();
 223     break;
 224
 225 case 'mkdirform':
 226     echo $OUTPUT->header();
 227
 228     echo $OUTPUT->container_start();
 229     echo html_writer::link($home_url, get_string('back', 'repository'));
 230     echo $OUTPUT->container_end();
 231
 232     $home_url->param('draftpath', $draftpath);
 233     $home_url->param('action', 'mkdir');
 234     echo ' <form method="post" action="'.$home_url->out().'">';
 235     echo html_writer::label(get_string('entername', 'repository'), 'newdirname', array('class' => 'accesshide'));
 236     echo '  <input name="newdirname" id="newdirname" type="text" />';
 237     echo '  <input name="draftpath" type="hidden" value="'.s($draftpath).'" />';
 238     echo '  <input type="submit" value="'.s(get_string('makeafolder', 'moodle')).'" />';
 239     echo ' </form>';
 240     echo $OUTPUT->footer();
 241     break;
 242
 243 case 'mkdir':
 244
 245     $newfolderpath = $draftpath . trim($newdirname, '/') . '/';
 246     $fs->create_directory($user_context->id, 'user', 'draft', $itemid, $newfolderpath);
 247     $home_url->param('action', 'browse');
 248     if (!empty($newdirname)) {
 249         $home_url->param('draftpath', $newfolderpath);
 250         $str = get_string('createfoldersuccess', 'repository');
 251     } else {
 252         $home_url->param('draftpath', $draftpath);
 253         $str = get_string('createfolderfail', 'repository');
 254     }
 255     redirect($home_url, $str);
 256     break;
 257
 258 case 'browse':
 259 default:
 260     $files = file_get_drafarea_files($itemid, $draftpath);
 261     $info = file_get_draft_area_info($itemid);
 262     $filecount = $info['filecount'];
 263
 264     echo $OUTPUT->header();
 265     if ((!empty($files) or $draftpath != '/') and $env == 'filemanager') {
 266         echo '<div class="fm-breadcrumb">';
 267         $home_url->param('action', 'browse');
 268         $home_url->param('draftpath', '/');
 269         echo '<a href="'.$home_url->out().'">' . get_string('files') . '</a> ▶';
 270         $trail = '';
 271         if ($draftpath !== '/') {
 272             $path = '/' . trim($draftpath, '/') . '/';
 273             $parts = explode('/', $path);
 274             foreach ($parts as $part) {
 275                 if ($part != '') {
 276                     $trail .= ('/'.$part.'/');
 277                     $data->path[] = array('name'=>$part, 'path'=>$trail);
 278                     $home_url->param('draftpath', $trail);
 279                     echo ' <a href="'.$home_url->out().'">'.$part.'</a> ▶ ';
 280                 }
 281             }
 282         }
 283         echo '</div>';
 284     }
 285
 286     $filepicker_url->param('draftpath', $draftpath);
 287     $filepicker_url->param('savepath', $draftpath);
 288     $filepicker_url->param('action', 'plugins');
 289     echo '<div class="filemanager-toolbar">';
 290     if ($env == 'filepicker') {
 291         $maxfiles = 1;
 292     }
 293     if ($filecount < $maxfiles || $maxfiles == -1) {
 294         echo ' <a href="'.$filepicker_url->out().'">'.get_string('addfile', 'repository').'</a>';
 295     }
 296     if ($env == 'filemanager') {
 297         if (!empty($subdirs)) {
 298             $home_url->param('action', 'mkdirform');
 299             echo ' <a href="'.$home_url->out().'">'.get_string('makeafolder', 'moodle').'</a>';
 300         }
 301         if (!empty($files->list)) {
 302             $home_url->param('action', 'downloaddir');
 303             echo ' ' . html_writer::link($home_url, get_string('downloadfolder', 'repository'), array('target'=>'_blank'));
 304         }
 305     }
 306     echo '</div>';
 307
 308     if (!empty($files->list)) {
 309         echo '<ul>';
 310         foreach ($files->list as $file) {
 311             if ($file->type != 'folder') {
 312                 $drafturl = $file->url;
 313                 // a file
 314                 echo '<li>';
 315                 echo $OUTPUT->pix_icon(file_file_icon($file), '', 'moodle', array('class' => 'iconsmall'));
 316                 echo html_writer::link($drafturl, $file->filename);
 317
 318                 $home_url->param('filename', $file->filename);
 319                 $home_url->param('draftpath', $file->filepath);
 320
 321                 $home_url->param('action', 'deletedraft');
 322                 echo ' [<a href="'.$home_url->out().'" class="fm-operation">'.get_string('delete').'</a>]';
 323
 324                 $home_url->param('action', 'movefile');
 325                 echo ' [<a href="'.$home_url->out().'" class="fm-operation">'.get_string('move').'</a>]';
 326
 327                 $home_url->param('action', 'renameform');
 328                 echo ' [<a href="'.$home_url->out().'" class="fm-operation">'.get_string('rename').'</a>]';
 329
 330                 if (file_extension_in_typegroup($file->filename, 'archive', true)) {
 331                     $home_url->param('action', 'unzip');
 332                     $home_url->param('draftpath', $file->filepath);
 333                     echo ' [<a href="'.$home_url->out().'" class="fm-operation">'.get_string('unzip').'</a>]';
 334                 }
 335
 336                 echo '</li>';
 337             } else {
 338                 // a folder
 339                 echo '<li>';
 340                 echo '<img src="'.$OUTPUT->pix_url(file_folder_icon()) . '" class="iconsmall" />';
 341
 342                 $home_url->param('action', 'browse');
 343                 $home_url->param('draftpath', $file->filepath);
 344                 $filepathchunks = explode('/', trim($file->filepath, '/'));
 345                 $foldername = trim(array_pop($filepathchunks), '/');
 346                 echo html_writer::link($home_url, $foldername);
 347
 348                 $home_url->param('draftpath', $file->filepath);
 349                 $home_url->param('filename',  $file->filename);
 350                 $home_url->param('action', 'deletedraft');
 351                 echo ' [<a href="'.$home_url->out().'" class="fm-operation">'.get_string('delete').'</a>]';
 352
 353                 $home_url->param('action', 'zip');
 354                 echo ' [<a href="'.$home_url->out().'" class="fm-operation">Zip</a>]';
 355                 echo '</li>';
 356             }
 357         }
 358         echo '</ul>';
 359     } else {
 360         echo get_string('nofilesavailable', 'repository');
 361     }
 362     echo $OUTPUT->footer();
 363     break;
 364 }
 365
 366 function print_draft_area_tree($tree, $root, $url) {
 367     echo '<ul>';
 368     if ($root) {
 369         $url->param('targetpath', '/');
 370         if ($url->param('draftpath') == '/') {
 371             echo '<li>'.get_string('files').'</li>';
 372         } else {
 373             echo '<li><a href="'.$url->out().'">'.get_string('files').'</a></li>';
 374         }
 375         echo '<ul>';
 376         if (isset($tree->children)) {
 377             $tree = $tree->children;
 378         }
 379     }
 380
 381     if (!empty($tree)) {
 382         foreach ($tree as $node) {
 383             echo '<li>';
 384             $url->param('targetpath', $node->filepath);
 385             if ($url->param('draftpath') != $node->filepath) {
 386                 echo '<a href="'.$url->out().'">'.$node->fullname.'</a>';
 387             } else {
 388                 echo $node->fullname;
 389             }
 390             echo '</li>';
 391             if (!empty($node->children)) {
 392                 print_draft_area_tree($node->children, false, $url);
 393             }
 394         }
 395     }
 396     if ($root) {
 397         echo '</ul>';
 398     }
 399     echo '</ul>';
 400 }