" MDL-16597, ajax file manager element"

files/files_ajax.php

@@ -0,0 +1,197 @@
+<?php
+
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * File manager
+ *
+ * @package    moodlecore
+ * @subpackage file
+ * @copyright  1999 onwards Dongsheng Cai <dongsheng@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+require('../config.php');
+require_once($CFG->libdir.'/filelib.php');
+require_once($CFG->libdir.'/adminlib.php');
+
+require_login();
+
+$err = new stdclass;
+
+if (isguestuser()) {
+    $err->error = get_string('noguest');
+    die(json_encode($err));
+}
+
+if (!confirm_sesskey()) {
+    $err->error = get_string('invalidsesskey');
+    die(json_encode($err));
+}
+
+$action     = optional_param('action', 'list', PARAM_ALPHA);
+$filename   = optional_param('filename', '', PARAM_FILE);
+$filearea   = optional_param('filearea', '', PARAM_ALPHAEXT);
+$filepath   = optional_param('filepath', '/', PARAM_PATH);
+$itemid     = optional_param('itemid', -1, PARAM_INT);
+$newfilepath = optional_param('newfilepath', '/', PARAM_PATH);
+$newdirname  = optional_param('newdirname', '', PARAM_FILE);
+$newfilename = optional_param('newfilename', '', PARAM_FILE);
+
+$user_context = get_context_instance(CONTEXT_USER, $USER->id);
+
+switch ($action) {
+case 'dir':
+    $data = new stdclass;
+    file_get_draft_area_folders($itemid, $filepath, $data);
+    echo json_encode($data);
+    break;
+
+case 'list':
+    $data = file_get_draft_area_files($itemid, $filepath);
+    echo json_encode($data);
+    break;
+
+case 'mkdir':
+    $fs = get_file_storage();
+    $fs->create_directory($user_context->id, 'user_draft', $itemid, file_correct_filepath(file_correct_filepath($filepath).$newdirname));
+    $return = new stdclass;
+    $return->filepath = $filepath;
+    echo json_encode($return);
+    break;
+
+case 'delete':
+    $fs = get_file_storage();
+    $filepath = file_correct_filepath($filepath);
+    $return = new stdclass;
+    if ($file = $fs->get_file($user_context->id, 'user_draft', $itemid, $filepath, $filename)) {
+        $parent_path = $file->get_parent_directory()->get_filepath();
+        if($result = $file->delete()) {
+            $return->filepath = $parent_path;
+            echo json_encode($return);
+        } else {
+            echo json_encode(false);
+        }
+    } else {
+        echo json_encode(false);
+    }
+    break;
+
+case 'renamedir':
+    $fs = get_file_storage();
+    $fb = get_file_browser();
+    $file = $fb->get_file_info($user_context, 'user_draft', $itemid, $filepath, '.');
+    if ($result = $file->delete()) {
+        $fs->create_directory($user_context->id, 'user_draft', $itemid, file_correct_filepath($newfilename));
+        $return = new stdclass;
+        $return->filepath = file_correct_filepath($newfilename);
+        echo json_encode($return);
+    } else {
+        echo json_encode(false);
+    }
+    break;
+
+case 'rename':
+    $fb = get_file_browser();
+    $file = $fb->get_file_info($user_context, 'user_draft', $itemid, $filepath, $filename);
+    $file->copy_to_storage($user_context->id, 'user_draft', $itemid, $filepath, $newfilename);
+    if ($file->delete()) {
+        $return = new stdclass;
+        $return->filepath = $filepath;
+        echo json_encode($return);
+    } else {
+        echo json_encode(false);
+    }
+    break;
+
+case 'movefile':
+case 'movedir':
+    $fb = get_file_browser();
+    $return = new stdclass;
+    if ($filepath != $newfilepath) {
+        $file = $fb->get_file_info($user_context, 'user_draft', $itemid, $filepath, $filename);
+        $file->copy_to_storage($user_context->id, 'user_draft', $itemid, $newfilepath, $filename);
+        if ($file->delete()) {
+            $return->filepath = $newfilepath;
+        }
+    }
+    if (!isset($return->filepath)) {
+        $return->filepath = '/';
+    }
+    echo json_encode($return);
+    break;
+
+case 'zip':
+    $zipper = new zip_packer();
+    $fs = get_file_storage();
+
+    $file = $fs->get_file($user_context->id, 'user_draft', $itemid, $filepath, '.');
+
+    $parent_path = $file->get_parent_directory()->get_filepath();
+
+    if ($newfile = $zipper->archive_to_storage(array($file), $user_context->id, 'user_draft', $itemid, $parent_path, $filepath.'.zip', $USER->id)) {
+        $return = new stdclass;
+        $return->filepath = $parent_path;
+        echo json_encode($return);
+    } else {
+        echo json_encode(false);
+    }
+    break;
+
+case 'downloaddir':
+    $zipper = new zip_packer();
+    $fs = get_file_storage();
+
+    $file = $fs->get_file($user_context->id, 'user_draft', $itemid, $filepath, '.');
+    if ($file->get_parent_directory()) {
+        $parent_path = $file->get_parent_directory()->get_filepath();
+        $filename = trim($filepath, '/').'.zip';
+    } else {
+        $parent_path = '/';
+        $filename = get_string('files').'.zip';
+    }
+
+    // archive compressed file to an unused draft area
+    $newdraftitemid = file_get_unused_draft_itemid();
+    if ($newfile = $zipper->archive_to_storage(array($file), $user_context->id, 'user_draft', $newdraftitemid, '/', $filename, $USER->id)) {
+        $return = new stdclass;
+        $return->fileurl  = $CFG->wwwroot . '/draftfile.php/' . $user_context->id .'/user_draft/'.$newdraftitemid.'/'.$filename;
+        $return->filepath = $parent_path;
+        echo json_encode($return);
+    } else {
+        echo json_encode(false);
+    }
+    break;
+
+case 'unzip':
+    $zipper = new zip_packer();
+
+    $fs = get_file_storage();
+
+    $file = $fs->get_file($user_context->id, 'user_draft', $itemid, $filepath, $filename);
+
+    if ($newfile = $file->extract_to_storage($zipper, $user_context->id, 'user_draft', $itemid, $filepath, $USER->id)) {
+        $return = new stdclass;
+        $return->filepath = $filepath;
+        echo json_encode($return);
+    } else {
+        echo json_encode(false);
+    }
+    break;
+
+default:
+    break;
+}

lib/filelib.php

@@ -603,7 +603,12 @@ function file_get_submitted_draft_itemid($elname) {
         confirm_sesskey();
     }
     if (is_array($param)) {
-        $param = $param['itemid'];
+        if (!empty($param['itemid'])) {
+            $param = $param['itemid'];
+        } else {
+            debugging('Missing itemid, maybe caused by unset maxfiles option', DEBUG_DEVELOPER);
+            return false;
+        }
     }
     return $param;
 }