[RCD] Strange attachments upload problem in Roundcube with filenames containing unicode characters.

Hello :-)

Reproducing the problem

1. Compose a new message
2. Attach a file named for example ąĄęʜ揣ó.zip
3. Now try attach another file...

The animation spins forever, no errors shown or logged, strange, huh?

Another scenario:

1. Compose a new message
2. Attach a file named abc.zip
3. Attach a file named 123.zip
4. Attach a file named for example ąĄęʜ揣ó.zip
5. Now try attach another file...

Same thing. After attaching a file with a name containing unicode characters it is NOT possible to attach another file.

But no errors are shown or logged...

What I've done (don't laugh):

# svn diff app.js Index: app.js =================================================================== --- app.js (revision 3899) +++ app.js (working copy) @@ -3062,16 +3062,16 @@ // have to do it this way for IE // otherwise the form will be posted to a new window if (document.all) {

•    var html = '<iframe name="'+frame_name+'" src="program/blank.gif" style="width:0;height:0;visibility:hidden;"></iframe>';
  

•   var html = '<iframe name="'+frame_name+'" src="program/blank.gif" style="position:absolute; left:0px; top:0px; width:200px; height:200px; visibility:visible; z-index:9999; font-weight: bold; color: red;"></iframe>';
     document.body.insertAdjacentHTML('BeforeEnd',html);
   }
   else { // for standards-compilant browsers
     var frame = document.createElement('iframe');
     frame.name = frame_name;
     frame.style.border = 'none';
  

•    frame.style.width = 0;
  

•    frame.style.height = 0;
  

•    frame.style.visibility = 'hidden';
  

•    frame.style.width = '200px';
  

•    frame.style.height = '200px';
  

•    frame.style.visibility = 'visible';
     document.body.appendChild(frame);
   }
  
  
  

Now I can see "Invalid session var!".

This error is shown, because:

if (!$_SESSION['compose']){ die("Invalid session var!"); }

which is found in ./program/steps/mail/attachments.inc.

Any ideas how can fix this? I'm kinda new to roundcube-dev 8-)