MDL-33766 files: Support for userquota/size limit in draft areas

files/renderer.php

@@ -454,14 +454,21 @@ public function filemanager_js_templates() {
      */
     private function fm_print_restrictions($fm) {
         $maxbytes = display_size($fm->options->maxbytes);
-        if (empty($fm->options->maxfiles) || $fm->options->maxfiles == -1) {
-            $maxsize = get_string('maxfilesize', 'moodle', $maxbytes);
-        } else {
-            $strparam = (object)array('size' => $maxbytes, 'attachments' => $fm->options->maxfiles);
+        $strparam = (object) array('size' => $maxbytes, 'attachments' => $fm->options->maxfiles,
+            'areasize' => display_size($fm->options->areamaxbytes));
+        $hasmaxfiles = !empty($fm->options->maxfiles) && $fm->options->maxfiles > 0;
+        $hasarealimit = !empty($fm->options->areamaxbytes) && $fm->options->areamaxbytes != -1;
+        if ($hasmaxfiles && $hasarealimit) {
+            $maxsize = get_string('maxsizeandattachmentsandareasize', 'moodle', $strparam);
+        } else if ($hasmaxfiles) {
             $maxsize = get_string('maxsizeandattachments', 'moodle', $strparam);
+        } else if ($hasarealimit) {
+            $maxsize = get_string('maxsizeandareasize', 'moodle', $strparam);
+        } else {
+            $maxsize = get_string('maxfilesize', 'moodle', $maxbytes);
         }
         // TODO MDL-32020 also should say about 'File types accepted'
-        return '<span>'. $maxsize. '</span>';
+        return '<span>'. $maxsize . '</span>';
     }
 
     /**

lang/en/error.php

@@ -346,6 +346,7 @@
 $string['loginasnoenrol'] = 'You cannot use enrol or unenrol when in course "Login as" session';
 $string['loginasonecourse'] = 'You cannot enter this course.<br /> You have to terminate the "Login as" session before entering any other course.';
 $string['maxbytes'] = 'This file is bigger than the maximum size';
+$string['maxareabytes'] = 'Not enough available space to store this file';
 $string['messagingdisable'] = 'Messaging is disabled on this site';
 $string['mimetexisnotexist'] = 'Your system is not configured to run mimeTeX. You need to download the appropriate executable for you PHP_OS platform from <a href="http://moodle.org/download/mimetex/">http://moodle.org/download/mimetex/</a>, or obtain the C source from <a href="http://www.forkosh.com/mimetex.zip"> http://www.forkosh.com/mimetex.zip</a>, compile it and put the executable into your moodle/filter/tex/ directory.';
 $string['mimetexnotexecutable'] = 'Custom mimetex is not executable!';

lang/en/moodle.php

@@ -985,6 +985,8 @@
 $string['markthistopic'] = 'Highlight this topic as the current topic';
 $string['matchingsearchandrole'] = 'Matching \'{$a->search}\' and {$a->role}';
 $string['maxsizeandattachments'] = 'Maximum size for new files: {$a->size}, maximum attachments: {$a->attachments}';
+$string['maxsizeandattachmentsandareasize'] = 'Maximum size for new files: {$a->size}, maximum attachments: {$a->attachments}, overall limit: {$a->areasize}';
+$string['maxsizeandareasize'] = 'Maximum size for new files: {$a->size}, overall limit: {$a->areasize}';
 $string['maxfilesreached'] = 'You are allowed to attach a maximum of {$a} file(s) to this item';
 $string['maximumgrade'] = 'Maximum grade';
 $string['maximumgradex'] = 'Maximum grade: {$a}';

lib/filelib.php

@@ -481,6 +481,25 @@ function file_get_draft_area_info($draftitemid) {
     return $results;
 }
 
+/**
+ * Returns whether a draft area has exceeded/will exceed its size limit.
+ *
+ * @param int $draftitemid the draft area item id.
+ * @param int $areamaxbytes the maximum size allowed in this draft area.
+ * @param int $newfilesize the size that would be added to the current area.
+ * @return bool true if the area will/has exceeded its limit.
+ * @since 2.4
+ */
+function file_is_draft_area_limit_reached($draftitemid, $areamaxbytes, $newfilesize = 0) {
+    if ($areamaxbytes != -1) {
+        $draftinfo = file_get_draft_area_info($draftitemid);
+        if ($draftinfo['filesize'] + $newfilesize > $areamaxbytes) {
+            return true;
+        }
+    }
+    return false;
+}
+
 /**
  * Get used space of files
  * @global moodle_database $DB

lib/form/dndupload.js

@@ -38,6 +38,8 @@ M.form_dndupload.init = function(Y, options) {
         acceptedtypes: [],
         // maximum size of files allowed in this form
         maxbytes: 0,
+        // maximum combined size of files allowed in this form
+        areamaxbytes: 0,
         // unqiue id of this form field used for html elements
         clientid: '',
         // upload repository id, used for upload
@@ -63,6 +65,7 @@ M.form_dndupload.init = function(Y, options) {
          *            acceptdtypes: accepted filetypes by this form
          *            maxfiles: maximum number of files this form allows
          *            maxbytes: maximum size of files allowed in this form
+         *            areamaxbytes: maximum combined size of files allowed in this form
          *            clientid: unqiue id of this form field used for html elements
          *            containerid: htmlid of container
          *            repositories: array of repository objects passed from filepicker
@@ -90,6 +93,7 @@ M.form_dndupload.init = function(Y, options) {
             this.acceptedtypes = options.acceptedtypes;
             this.clientid = options.clientid;
             this.maxbytes = options.maxbytes;
+            this.areamaxbytes = options.areamaxbytes;
             this.itemid = options.itemid;
             this.author = options.author;
             this.container = this.Y.one('#'+options.containerid);
@@ -406,10 +410,14 @@ M.form_dndupload.init = function(Y, options) {
         currentfiles: null,
         // Total number of files already uploaded (to check for exceeding limits).
         currentfilecount: 0,
+        // Total size of the files present in the area.
+        currentareasize: 0,
         // The list of files to upload.
         uploadqueue: [],
         // This list of files with name clashes.
         renamequeue: [],
+        // Size of the current queue.
+        queuesize: 0,
         // Set to true if the user has clicked on 'overwrite all'.
         overwriteall: false,
         // Set to true if the user has clicked on 'rename all'.
@@ -432,6 +440,12 @@ M.form_dndupload.init = function(Y, options) {
             this.callback = params.callback;
             this.currentfiles = params.currentfiles;
             this.currentfilecount = params.currentfilecount;
+            this.currentareasize = 0;
+
+            // Retrieve the current size of the area.
+            for (var i = 0; i < this.currentfiles.length; i++) {
+                this.currentareasize += this.currentfiles[i].size;
+            };
 
             this.initialise_queue(params.files);
         },
@@ -489,8 +503,9 @@ M.form_dndupload.init = function(Y, options) {
         initialise_queue: function(files) {
             this.uploadqueue = [];
             this.renamequeue = [];
+            this.queuesize = 0;
 
-            // Loop through the files and find any name clashes with existing files
+            // Loop through the files and find any name clashes with existing files.
             var i;
             for (i=0; i<files.length; i++) {
                 if (this.options.maxbytes > 0 && files[i].size > this.options.maxbytes) {
@@ -507,6 +522,7 @@ M.form_dndupload.init = function(Y, options) {
                         return;
                     }
                 }
+                this.queuesize += files[i].size;
             }
         },
 
@@ -528,6 +544,16 @@ M.form_dndupload.init = function(Y, options) {
                 this.print_msg(M.util.get_string('maxfilesreached', 'moodle', this.options.maxfiles), 'error');
                 return false;
             }
+            // The new file will cause the area to reach its limit, we cancel the upload of all files.
+            if (this.options.areamaxbytes > -1) {
+                var sizereached = this.currentareasize + this.queuesize + file.size;
+                if (sizereached > this.options.areamaxbytes) {
+                    this.uploadqueue = [];
+                    this.renamequeue = [];
+                    this.print_msg(M.util.get_string('uploadformlimit', 'moodle', file.name), 'error');
+                    return false;
+                }
+            }
             this.uploadqueue.push({file:file, filename:filename, overwrite:overwrite});
             return true;
         },

lib/form/filemanager.js

@@ -26,6 +26,7 @@
  * this.filecount, how many files in this filemanager
  * this.maxfiles
  * this.maxbytes
+ * this.areamaxbytes, the maximum size of the area
  * this.filemanager, contains reference to filemanager Node
  * this.selectnode, contains referenct to select-file Node
  * this.selectui, YUI Panel to select the file
@@ -68,13 +69,15 @@ M.form_filemanager.init = function(Y, options) {
             this.currentpath = '/';
             this.maxfiles = options.maxfiles;
             this.maxbytes = options.maxbytes;
+            this.areamaxbytes = options.areamaxbytes;
             this.emptycallback = null; // Used by drag and drop upload
 
             this.filepicker_options = options.filepicker?options.filepicker:{};
             this.filepicker_options.client_id = this.client_id;
             this.filepicker_options.context = options.context;
             this.filepicker_options.maxfiles = this.maxfiles;
             this.filepicker_options.maxbytes = this.maxbytes;
+            this.filepicker_options.areamaxbytes = this.areamaxbytes;
             this.filepicker_options.env = 'filemanager';
             this.filepicker_options.itemid = options.itemid;
 
@@ -1003,6 +1006,7 @@ M.form_filemanager.init = function(Y, options) {
         author: options.author,
         maxfiles: options.maxfiles,
         maxbytes: options.maxbytes,
+        areamaxbytes: options.areamaxbytes,
         itemid: options.itemid,
         repositories: manager.filepicker_options.repositories,
         containerid: manager.dndcontainer.get('id')

lib/form/filemanager.php

@@ -48,7 +48,7 @@ class MoodleQuickForm_filemanager extends HTML_QuickForm_element {
     // PHP doesn't support 'key' => $value1 | $value2 in class definition
     // We cannot do $_options = array('return_types'=> FILE_INTERNAL | FILE_REFERENCE);
     // So I have to set null here, and do it in constructor
-    protected $_options    = array('mainfile'=>'', 'subdirs'=>1, 'maxbytes'=>-1, 'maxfiles'=>-1, 'accepted_types'=>'*', 'return_types'=> null);
+    protected $_options    = array('mainfile'=>'', 'subdirs'=>1, 'maxbytes'=>-1, 'maxfiles'=>-1, 'accepted_types'=>'*', 'return_types'=> null, 'areamaxbytes' => -1);
 
     /**
      * Constructor
@@ -133,6 +133,24 @@ function setMaxbytes($maxbytes) {
         $this->_options['maxbytes'] = get_user_max_upload_file_size($PAGE->context, $CFG->maxbytes, $maxbytes);
     }
 
+    /**
+     * Returns the maximum size of the area.
+     *
+     * @return int
+     */
+    function getAreamaxbytes() {
+        return $this->_options['areamaxbytes'];
+    }
+
+    /**
+     * Sets the maximum size of the area.
+     *
+     * @param int $areamaxbytes size limit
+     */
+    function setAreamaxbytes($areamaxbytes) {
+        $this->_options['areamaxbytes'] = $areamaxbytes;
+    }
+
     /**
      * Returns true if subdirectoy can be created, else false
      *
@@ -237,6 +255,7 @@ function toHtml() {
         $options->accepted_types = $accepted_types;
         $options->return_types = $this->_options['return_types'];
         $options->context = $PAGE->context;
+        $options->areamaxbytes = $this->_options['areamaxbytes'];
 
         $html = $this->_getTabs();
         $fm = new form_filemanager($options);

repository/filepicker.js

@@ -544,6 +544,7 @@ M.core_filepicker.init = function(Y, options) {
             params['client_id'] = args.client_id;
             params['itemid'] = this.options.itemid?this.options.itemid:0;
             params['maxbytes'] = this.options.maxbytes?this.options.maxbytes:-1;
+            params['areamaxbytes'] = this.options.areamaxbytes ? this.options.areamaxbytes : -1;
             if (this.options.context && this.options.context.id) {
                 params['ctx_id'] = this.options.context.id;
             }

repository/repository_ajax.php

@@ -46,6 +46,7 @@
 $req_path  = optional_param('p', '', PARAM_RAW);                // Path
 $accepted_types  = optional_param_array('accepted_types', '*', PARAM_RAW);
 $saveas_filename = optional_param('title', '', PARAM_FILE);     // save as file name
+$areamaxbytes  = optional_param('areamaxbytes', -1, PARAM_INT); // Area max bytes
 $saveas_path   = optional_param('savepath', '/', PARAM_PATH);   // save as file path
 $search_text   = optional_param('s', '', PARAM_CLEANHTML);
 $linkexternal  = optional_param('linkexternal', '', PARAM_ALPHA);
@@ -301,6 +302,11 @@
                     die(json_encode($err));
                 }
 
+                // Check if we exceed the max bytes of the area.
+                if (file_is_draft_area_limit_reached($itemid, $areamaxbytes, filesize($downloadedfile['path']))) {
+                    throw new file_exception('maxareabytes');
+                }
+
                 // Check if exceed maxbytes.
                 if ($maxbytes != -1 && filesize($downloadedfile['path']) > $maxbytes) {
                     throw new file_exception('maxbytes');

repository/upload/lib.php

@@ -57,9 +57,10 @@ public function upload($saveas_filename, $maxbytes) {
         $itemid   = optional_param('itemid', 0, PARAM_INT);
         $license  = optional_param('license', $CFG->sitedefaultlicense, PARAM_TEXT);
         $author   = optional_param('author', '', PARAM_TEXT);
+        $areamaxbytes = optional_param('areamaxbytes', -1, PARAM_INT);
         $overwriteexisting = optional_param('overwrite', false, PARAM_BOOL);
 
-        return $this->process_upload($saveas_filename, $maxbytes, $types, $savepath, $itemid, $license, $author, $overwriteexisting);
+        return $this->process_upload($saveas_filename, $maxbytes, $types, $savepath, $itemid, $license, $author, $overwriteexisting, $areamaxbytes);
     }
 
     /**
@@ -74,7 +75,8 @@ public function upload($saveas_filename, $maxbytes) {
      * @param bool $overwriteexisting optional user has asked to overwrite the existing file
      * @return object containing details of the file uploaded
      */
-    public function process_upload($saveas_filename, $maxbytes, $types = '*', $savepath = '/', $itemid = 0, $license = null, $author = '', $overwriteexisting = false) {
+    public function process_upload($saveas_filename, $maxbytes, $types = '*', $savepath = '/', $itemid = 0,
+            $license = null, $author = '', $overwriteexisting = false, $areamaxbytes = -1) {
         global $USER, $CFG;
 
         if ((is_array($types) and in_array('*', $types)) or $types == '*') {
@@ -192,6 +194,10 @@ public function process_upload($saveas_filename, $maxbytes, $types = '*', $savep
             $record->itemid = 0;
         }
 
+        if (file_is_draft_area_limit_reached($record->itemid, $areamaxbytes, filesize($_FILES[$elname]['tmp_name']))) {
+            throw new file_exception('maxareabytes');
+        }
+
         if (($maxbytes!==-1) && (filesize($_FILES[$elname]['tmp_name']) > $maxbytes)) {
             throw new file_exception('maxbytes');
         }

user/files.php

@@ -53,7 +53,8 @@
 
 $data = new stdClass();
 $data->returnurl = $returnurl;
-$options = array('subdirs'=>1, 'maxbytes'=>$CFG->userquota, 'maxfiles'=>-1, 'accepted_types'=>'*');
+$options = array('subdirs' => 1, 'maxbytes' => $CFG->userquota, 'maxfiles' => -1, 'accepted_types' => '*',
+        'areamaxbytes' => $CFG->userquota);
 file_prepare_standard_filemanager($data, 'files', $options, $context, 'user', 'private', 0);
 
 $mform = new user_files_form(null, array('data'=>$data, 'options'=>$options));

user/files_form.php

@@ -46,8 +46,7 @@ function validation($data, $files) {
 
         $errors = array();
         $draftitemid = $data['files_filemanager'];
-        $fileinfo = file_get_draft_area_info($draftitemid);
-        if ($fileinfo['filesize'] > $CFG->userquota) {
+        if (file_is_draft_area_limit_reached($draftitemid, $this->_customdata['options']['areamaxbytes'])) {
             $errors['files_filemanager'] = get_string('userquotalimit', 'error');
         }