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