Fix so files size/count limit is verified (client-side) also on drag-n-drop uploads (#5940)

CHANGELOG

@@ -3,6 +3,7 @@ CHANGELOG Roundcube Webmail
 
 - Improve detection for Egde browser and add pointer event support (#5922)
 - Fix bug where pink image was used instead of a thumbnail when image resize fails (#5933)
+- Fix so files size/count limit is verified (client-side) also on drag-n-drop uploads (#5940)
 
 RELEASE 1.3.1
 -------------

program/js/app.js

@@ -4999,6 +4999,7 @@ function rcube_webmail()
         this.display_message(this.env.filesizeerror, 'error');
         return false;
       }
+
       if (this.env.max_filecount && this.env.filecounterror && numfiles > this.env.max_filecount) {
         this.display_message(this.env.filecounterror, 'error');
         return false;
@@ -8804,7 +8805,8 @@ function rcube_webmail()
     this.file_drag_hover(e, false);
 
     // prepare multipart form data composition
-    var uri, files = e.target.files || e.dataTransfer.files,
+    var uri, size = 0, numfiles = 0,
+      files = e.target.files || e.dataTransfer.files,
       formdata = window.FormData ? new FormData() : null,
       fieldname = (this.env.filedrop.fieldname || '_file') + (this.env.filedrop.single ? '' : '[]'),
       boundary = '------multipartformboundary' + (new Date).getTime(),
@@ -8833,6 +8835,16 @@ function rcube_webmail()
 
     // inline function to submit the files to the server
     var submit_data = function() {
+      if (ref.env.max_filesize && ref.env.filesizeerror && size > ref.env.max_filesize) {
+        ref.display_message(ref.env.filesizeerror, 'error');
+        return;
+      }
+
+      if (ref.env.max_filecount && ref.env.filecounterror && numfiles > ref.env.max_filecount) {
+        ref.display_message(ref.env.filecounterror, 'error');
+        return;
+      }
+
       var multiple = files.length > 1,
         ts = new Date().getTime(),
         // jQuery way to escape filename (#1490530)
@@ -8879,6 +8891,9 @@ function rcube_webmail()
         continue;
       }
 
+      size += f.size;
+      numfiles++;
+
       // do it the easy way with FormData (FF 4+, Chrome 5+, Safari 5+)
       if (formdata) {
         formdata.append(fieldname, f);