From 99e17f6131bf0eb1762ddc13766b41fcd1942a29 Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Thu, 13 Jun 2013 09:12:07 -0400
Subject: [PATCH] Fix timeout issue on drag&drop uploads (#1489170)

---
 program/js/app.js |  292 ++++++++++++++++++++++++++++++++++++----------------------
 1 files changed, 182 insertions(+), 110 deletions(-)

diff --git a/program/js/app.js b/program/js/app.js
index c2a7c1b..0dea592 100644
--- a/program/js/app.js
+++ b/program/js/app.js
@@ -44,7 +44,9 @@
     comm_path: './',
     blankpage: 'program/resources/blank.gif',
     recipients_separator: ',',
-    recipients_delimiter: ', '
+    recipients_delimiter: ', ',
+    popup_width: 1150,
+    popup_width_small: 900
   };
 
   // create protected reference to myself
@@ -229,7 +231,7 @@
         this.env.message_commands = ['show', 'reply', 'reply-all', 'reply-list',
           'moveto', 'copy', 'delete', 'open', 'mark', 'edit', 'viewsource',
           'print', 'load-attachment', 'download-attachment', 'show-headers', 'hide-headers', 'download',
-          'forward', 'forward-inline', 'forward-attachment'];
+          'forward', 'forward-inline', 'forward-attachment', 'change-format'];
 
         if (this.env.action == 'show' || this.env.action == 'preview') {
           this.enable_command(this.env.message_commands, this.env.uid);
@@ -314,7 +316,7 @@
         }
 
         // detect browser capabilities
-        if (!this.is_framed())
+        if (!this.is_framed() && !this.env.extwin)
           this.browser_capabilities_check();
 
         break;
@@ -596,16 +598,28 @@
 
       case 'extwin':
         if (this.env.action == 'compose') {
-          var form = this.gui_objects.messageform;
+          var form = this.gui_objects.messageform,
+            win = this.open_window('');
 
           $("input[name='_action']", form).val('compose');
           form.action = this.url('mail/compose', { _id: this.env.compose_id, _extwin: 1 });
-          form.target = this.open_window('', 1100, 900);
+          form.target = win.name;
           form.submit();
         }
         else {
-          this.open_window(this.env.permaurl, 900, 900);
+          this.open_window(this.env.permaurl, true);
         }
+        break;
+
+      case 'change-format':
+        url = this.env.permaurl + '&_format=' + props;
+
+        if (this.env.action == 'preview')
+          url = url.replace(/_action=show/, '_action=preview') + '&_framed=1';
+        if (this.env.extwin)
+          url += '&_extwin=1';
+
+        location.href = url;
         break;
 
       case 'menu-open':
@@ -846,11 +860,8 @@
 
         // open attachment in frame if it's of a supported mimetype
         if (command != 'download-attachment' && mimetype && this.env.mimetypes && $.inArray(mimetype, this.env.mimetypes) >= 0) {
-          var attachment_win = window.open(this.env.comm_path+'&_action=get&'+qstring+'&_frame=1', 'rcubemailattachment'+this.env.uid+props);
-          if (attachment_win) {
-            setTimeout(function(){ attachment_win.focus(); }, 10);
+          if (this.open_window(this.env.comm_path+'&_action=get&'+qstring+'&_frame=1', true, true))
             break;
-          }
         }
 
         this.goto_url('get', qstring+'&_download=1', false);
@@ -925,16 +936,13 @@
             url._to = props;
           }
           else {
-            // use contact_id passed as command parameter
-            var n, len, a_cids = [];
+            var a_cids = [];
+            // use contact id passed as command parameter
             if (props)
               a_cids.push(props);
             // get selected contacts
-            else if (this.contact_list) {
-              var selection = this.contact_list.get_selection();
-              for (n=0, len=selection.length; n<len; n++)
-                a_cids.push(selection[n]);
-            }
+            else if (this.contact_list)
+              a_cids = this.contact_list.get_selection();
 
             if (a_cids.length)
               this.http_post('mailto', { _cid: a_cids.join(','), _source: this.env.source }, true);
@@ -969,8 +977,8 @@
         // Reset the auto-save timer
         clearTimeout(this.save_timer);
 
-        // compose form did not change
-        if (this.cmp_hash == this.compose_field_hash()) {
+        // compose form did not change (and draft wasn't saved already)
+        if (this.env.draft_id && this.cmp_hash == this.compose_field_hash()) {
           this.auto_save_start();
           break;
         }
@@ -1037,9 +1045,8 @@
 
       case 'print':
         if (uid = this.get_single_uid()) {
-          ref.printwin = window.open(this.env.comm_path+'&_action=print&_uid='+uid+'&_mbox='+urlencode(this.env.mailbox)+(this.env.safemode ? '&_safe=1' : ''));
+          ref.printwin = this.open_window(this.env.comm_path+'&_action=print&_uid='+uid+'&_mbox='+urlencode(this.env.mailbox)+(this.env.safemode ? '&_safe=1' : ''), true, true);
           if (this.printwin) {
-            setTimeout(function(){ ref.printwin.focus(); }, 20);
             if (this.env.action != 'show')
               this.mark_message('read', uid);
           }
@@ -1047,11 +1054,8 @@
         break;
 
       case 'viewsource':
-        if (uid = this.get_single_uid()) {
-          ref.sourcewin = window.open(this.env.comm_path+'&_action=viewsource&_uid='+uid+'&_mbox='+urlencode(this.env.mailbox));
-          if (this.sourcewin)
-            setTimeout(function(){ ref.sourcewin.focus(); }, 20);
-          }
+        if (uid = this.get_single_uid())
+          this.open_window(this.env.comm_path+'&_action=viewsource&_uid='+uid+'&_mbox='+urlencode(this.env.mailbox), true, true);
         break;
 
       case 'download':
@@ -1171,6 +1175,7 @@
       if (typeof cmd === 'string') {
         this.commands[cmd] = enable;
         this.set_button(cmd, (enable ? 'act' : 'pas'));
+        this.triggerEvent('enable-command', {command: cmd, status: enable});
       }
       // push array elements into commands array
       else {
@@ -1235,7 +1240,7 @@
     if (!url)
       url = this.env.comm_path;
 
-    return url.replace(/_task=[a-z]+/, '_task='+task);
+    return url.replace(/_task=[a-z0-9_-]+/i, '_task='+task);
   };
 
   this.reload = function(delay)
@@ -1498,7 +1503,7 @@
 
     // start timer for message preview (wait for double click)
     if (selected && this.env.contentframe && !list.multi_selecting && !this.dummy_select)
-      this.preview_timer = setTimeout(function(){ ref.msglist_get_preview(); }, 200);
+      this.preview_timer = setTimeout(function() { ref.msglist_get_preview(); }, this.dblclick_time);
     else if (this.env.contentframe)
       this.show_contentframe(false);
   };
@@ -1514,12 +1519,13 @@
 
     var win = this.get_frame_window(this.env.contentframe);
 
-    if (win && win.location.href.indexOf(this.env.blankpage)>=0) {
+    if (win && win.location.href.indexOf(this.env.blankpage) >= 0) {
       if (this.preview_timer)
         clearTimeout(this.preview_timer);
       if (this.preview_read_timer)
         clearTimeout(this.preview_read_timer);
-      this.preview_timer = setTimeout(function(){ ref.msglist_get_preview(); }, 200);
+
+      this.preview_timer = setTimeout(function() { ref.msglist_get_preview(); }, this.dblclick_time);
     }
   };
 
@@ -1527,11 +1533,11 @@
   {
     if (this.preview_timer)
       clearTimeout(this.preview_timer);
-
     if (this.preview_read_timer)
       clearTimeout(this.preview_read_timer);
 
     var uid = list.get_single_selection();
+
     if (uid && this.env.mailbox == this.env.drafts_mailbox)
       this.open_compose_step({ _draft_uid: uid, _mbox: this.env.mailbox });
     else if (uid)
@@ -1571,7 +1577,7 @@
 
   this.msglist_set_coltypes = function(list)
   {
-    var i, found, name, cols = list.list.tHead.rows[0].cells;
+    var i, found, name, cols = list.thead.rows[0].cells;
 
     this.env.coltypes = [];
 
@@ -1619,15 +1625,28 @@
     return 0;
   };
 
-  this.open_window = function(url, width, height)
+  // open popup window
+  this.open_window = function(url, small, toolbar)
   {
-    var w = Math.min(width, screen.width - 10),
-      h = Math.min(height, screen.height - 100),
-      l = (screen.width - w) / 2 + (screen.left || 0),
-      t = Math.max(0, (screen.height - h) / 2 + (screen.top || 0) - 20),
-      wname = 'rcmextwin' + new Date().getTime(),
-      extwin = window.open(url + '&_extwin=1', wname,
-        'width='+w+',height='+h+',top='+t+',left='+l+',resizable=yes,toolbar=no,status=no,location=no');
+    var wname = 'rcmextwin' + new Date().getTime();
+
+    url += (url.match(/\?/) ? '&' : '?') + '_extwin=1';
+
+    if (this.env.standard_windows)
+      extwin = window.open(url, wname);
+    else {
+      var win = this.is_framed() ? parent.window : window,
+        page = $(win),
+        page_width = page.width(),
+        page_height = bw.mz ? $('body', win).height() : page.height(),
+        w = Math.min(small ? this.env.popup_width_small : this.env.popup_width, page_width),
+        h = page_height, // always use same height
+        l = (win.screenLeft || win.screenX) + 20,
+        t = (win.screenTop || win.screenY) + 20,
+        extwin = window.open(url, wname,
+          'width='+w+',height='+h+',top='+t+',left='+l+',resizable=yes,location=no,scrollbars=yes'
+          +(toolbar ? ',toolbar=yes,menubar=yes,status=yes' : ',toolbar=no,menubar=no,status=no'));
+    }
 
     // write loading... message to empty windows
     if (!url && extwin.document) {
@@ -1636,10 +1655,8 @@
 
     // focus window, delayed to bring to front
     window.setTimeout(function() { extwin.focus(); }, 10);
-    // position window with setTimeout for Chrome (#1488931)
-    window.setTimeout(function() { extwin.moveTo(l,t); }, bw.chrome ? 100 : 10);
 
-    return wname;
+    return extwin;
   };
 
 
@@ -1723,10 +1740,7 @@
         + (flags.flagged ? ' flagged' : '')
         + (flags.unread_children && flags.seen && !this.env.autoexpand_threads ? ' unroot' : '')
         + (message.selected ? ' selected' : ''),
-      // for performance use DOM instead of jQuery here
-      row = document.createElement('tr');
-
-    row.id = 'rcmrow'+uid;
+      row = { cols:[], style:{}, id:'rcmrow'+uid };
 
     // message status icons
     css_class = 'msgicon';
@@ -1790,8 +1804,7 @@
     // add each submitted col
     for (n in this.env.coltypes) {
       c = this.env.coltypes[n];
-      col = document.createElement('td');
-      col.className = String(c).toLowerCase();
+      col = { className: String(c).toLowerCase() };
 
       if (c == 'flag') {
         css_class = (flags.flagged ? 'flagged' : 'unflagged');
@@ -1836,8 +1849,7 @@
         html = cols[c];
 
       col.innerHTML = html;
-
-      row.appendChild(col);
+      row.cols.push(col);
     }
 
     list.insert_row(row, attop);
@@ -1938,7 +1950,7 @@
     }
     else {
       if (!preview && this.env.message_extwin && !this.env.extwin)
-        this.open_window(this.env.comm_path+url, 1000, 1200);
+        this.open_window(this.env.comm_path+url, true);
       else
         this.location_href(this.env.comm_path+url, target, true);
 
@@ -2200,7 +2212,7 @@
     if (root)
       row = rows[root] ? rows[root].obj : null;
     else
-      row = this.message_list.list.tBodies[0].firstChild;
+      row = this.message_list.tbody.firstChild;
 
     while (row) {
       if (row.nodeType == 1 && (r = rows[row.uid])) {
@@ -2376,7 +2388,7 @@
   this.delete_excessive_thread_rows = function()
   {
     var rows = this.message_list.rows,
-      tbody = this.message_list.list.tBodies[0],
+      tbody = this.message_list.tbody,
       row = tbody.firstChild,
       cnt = this.env.pagesize + 1;
 
@@ -2964,11 +2976,12 @@
 
     // open new compose window
     if (this.env.compose_extwin && !this.env.extwin) {
-      this.open_window(url, 1150, 900);
+      this.open_window(url);
     }
     else {
       this.redirect(url);
-      window.resizeTo(Math.max(1150, $(window).width()), Math.max(900, $(window).height()));
+      if (this.env.extwin)
+        window.resizeTo(Math.max(this.env.popup_width, $(window).width()), $(window).height() + 24);
     }
   };
 
@@ -3076,7 +3089,7 @@
 
   this.compose_add_recipient = function(field)
   {
-    var recipients = [], input = $('#_'+field);
+    var recipients = [], input = $('#_'+field), delim = this.env.recipients_delimiter;
 
     if (this.contact_list && this.contact_list.selection.length) {
       for (var id, n=0; n < this.contact_list.selection.length; n++) {
@@ -3095,8 +3108,10 @@
     }
 
     if (recipients.length && input.length) {
-      var oldval = input.val();
-      input.val((oldval ? oldval + this.env.recipients_delimiter : '') + recipients.join(this.env.recipients_delimiter));
+      var oldval = input.val(), rx = new RegExp(RegExp.escape(delim) + '\\s*$');
+      if (oldval && !rx.test(oldval))
+        oldval += delim + ' ';
+      input.val(oldval + recipients.join(delim + ' ') + delim + ' ');
       this.triggerEvent('add-recipient', { field:field, recipients:recipients });
     }
   };
@@ -3286,6 +3301,15 @@
 
   this.set_draft_id = function(id)
   {
+    var rc;
+
+    if (!this.env.draft_id && id && (rc = this.opener())) {
+      // refresh the drafts folder in opener window
+      if (rc.env.task == 'mail' && rc.env.action == '' && rc.env.mailbox == this.env.drafts_mailbox)
+        rc.command('checkmail');
+    }
+
+    this.env.draft_id = id;
     $("input[name='_draft_saveid']").val(id);
   };
 
@@ -3330,12 +3354,45 @@
     if (!show_sig)
       show_sig = this.env.show_sig;
 
-    var cursor_pos, p = -1,
+    var i, rx, cursor_pos, p = -1,
       id = obj.options[obj.selectedIndex].value,
       input_message = $("[name='_message']"),
       message = input_message.val(),
       is_html = ($("input[name='_is_html']").val() == '1'),
-      sig = this.env.identity;
+      sig = this.env.identity,
+      delim = this.env.recipients_delimiter,
+      headers = ['replyto', 'bcc'];
+
+    // update reply-to/bcc fields with addresses defined in identities
+    for (i in headers) {
+      var key = headers[i],
+        old_val = sig && this.env.identities[sig] ? this.env.identities[sig][key] : '',
+        new_val = id && this.env.identities[id] ? this.env.identities[id][key] : '',
+        input = $('[name="_'+key+'"]'), input_val = input.val();
+
+      // remove old address(es)
+      if (old_val && input_val) {
+        rx = new RegExp('\\s*' + RegExp.escape(old_val) + '\\s*');
+        input_val = input_val.replace(rx, '');
+      }
+
+      // cleanup
+      rx = new RegExp(RegExp.escape(delim) + '\\s*' + RegExp(delim), 'g');
+      input_val = input_val.replace(rx, delim)
+      rx = new RegExp('^\\s*' + RegExp.escape(delim) + '\\s*$');
+      input_val = input_val.replace(rx, '')
+
+      // add new address(es)
+      if (new_val) {
+        rx = new RegExp(RegExp.escape(delim) + '\\s*$');
+        if (input_val && !rx.test(input_val))
+          input_val += delim + ' ';
+        input_val += new_val + delim + ' ';
+      }
+
+      if (old_val || new_val)
+        input.val(input_val).change();
+    }
 
     // enable manual signature insert
     if (this.env.signatures && this.env.signatures[id]) {
@@ -3351,7 +3408,7 @@
         sig = this.env.signatures[sig].text;
         sig = sig.replace(/\r\n/g, '\n');
 
-        p = this.env.sig_above ? message.indexOf(sig) : message.lastIndexOf(sig);
+        p = this.env.top_posting ? message.indexOf(sig) : message.lastIndexOf(sig);
         if (p >= 0)
           message = message.substring(0, p) + message.substring(p+sig.length, message.length);
       }
@@ -3360,7 +3417,7 @@
         sig = this.env.signatures[id].text;
         sig = sig.replace(/\r\n/g, '\n');
 
-        if (this.env.sig_above) {
+        if (this.env.top_posting) {
           if (p >= 0) { // in place of removed signature
             message = message.substring(0, p) + sig + message.substring(p, message.length);
             cursor_pos = p - 1;
@@ -3404,7 +3461,7 @@
         sigElem = doc.createElement('div');
         sigElem.setAttribute('id', '_rc_sig');
 
-        if (this.env.sig_above) {
+        if (this.env.top_posting) {
           // if no existing sig and top posting then insert at caret pos
           editor.getWin().focus(); // correct focus in IE & Chrome
 
@@ -3661,15 +3718,19 @@
     this.env.search_id = null;
   };
 
-  this.sent_successfully = function(type, msg)
+  this.sent_successfully = function(type, msg, target)
   {
     this.display_message(msg, type);
 
     if (this.env.extwin) {
-      var opener_rc = this.opener();
+      var rc = this.opener();
       this.lock_form(this.gui_objects.messageform);
-      if (opener_rc)
-        opener_rc.display_message(msg, type);
+      if (rc) {
+        rc.display_message(msg, type);
+        // refresh the folder where sent message was saved
+        if (target && rc.env.task == 'mail' && rc.env.action == '' && rc.env.mailbox == target)
+          rc.command('checkmail');
+      }
       setTimeout(function(){ window.close() }, 1000);
     }
     else {
@@ -4044,6 +4105,7 @@
     var n, id, sid, ref = this, writable = false,
       source = this.env.source ? this.env.address_sources[this.env.source] : null;
 
+    // we don't have dblclick handler here, so use 200 instead of this.dblclick_time
     if (id = list.get_single_selection())
       this.preview_timer = setTimeout(function(){ ref.load_contact(id, 'show'); }, 200);
     else if (this.env.contentframe)
@@ -4306,21 +4368,7 @@
         newcid = newcid+'-'+source;
     }
 
-    if (list.rows[cid] && (row = list.rows[cid].obj)) {
-      for (c=0; c<cols_arr.length; c++)
-        if (row.cells[c])
-          $(row.cells[c]).html(cols_arr[c]);
-
-      // cid change
-      if (newcid) {
-        newcid = this.html_identifier(newcid);
-        row.id = 'rcmrow' + newcid;
-        list.remove_row(cid);
-        list.init_row(row);
-        list.selection[0] = newcid;
-        row.style.display = '';
-      }
-    }
+    list.update_row(cid, cols_arr, newcid, true);
   };
 
   // add row to contacts list
@@ -4330,7 +4378,7 @@
       return false;
 
     var c, col, list = this.contact_list,
-      row = document.createElement('tr');
+      row = { cols:[] };
 
     row.id = 'rcmrow'+this.html_identifier(cid);
     row.className = 'contact ' + (classes || '');
@@ -4340,10 +4388,10 @@
 
     // add each submitted col
     for (c in cols) {
-      col = document.createElement('td');
+      col = {};
       col.className = String(c).toLowerCase();
       col.innerHTML = cols[c];
-      row.appendChild(col);
+      row.cols.push(col);
     }
 
     list.insert_row(row);
@@ -4449,11 +4497,22 @@
       this.name_input.bind('keydown', function(e){ return rcmail.add_input_keydown(e); });
       this.name_input_li = $('<li>').addClass(type).append(this.name_input);
 
-      var li = type == 'contactsearch' ? $('li:last', this.gui_objects.folderlist) : $('ul.groups li:last', this.get_folder_li(this.env.source,'',true));
+      var ul, li;
+
+      // find list (UL) element
+      if (type == 'contactsearch')
+        ul = this.gui_objects.folderlist;
+      else
+        ul = $('ul.groups', this.get_folder_li(this.env.source,'',true));
+
+      // append to the list
+      li = $('li:last', ul);
       if (li.length)
         this.name_input_li.insertAfter(li);
-      else
-        this.name_input_li.appendTo(type == 'contactsearch' ? this.gui_objects.folderlist : $('ul.groups', this.get_folder_li(this.env.source,'',true)));
+      else {
+        this.name_input_li.appendTo(ul);
+        ul.show(); // make sure the list is visible
+      }
     }
 
     this.name_input.select().focus();
@@ -4510,11 +4569,13 @@
   this.reset_add_input = function()
   {
     if (this.name_input) {
+      var li = this.name_input.parent();
       if (this.env.group_renaming) {
-        var li = this.name_input.parent();
         li.children().last().show();
         this.env.group_renaming = false;
       }
+      else if ($('li', li.parent()).length == 1)
+        li.parent().hide();
 
       this.name_input.remove();
 
@@ -4942,17 +5003,15 @@
 
   this.update_identity_row = function(id, name, add)
   {
-    var row, col, list = this.identity_list,
+    var list = this.identity_list,
       rid = this.html_identifier(id);
 
-    if (list.rows[rid] && (row = list.rows[rid].obj)) {
-      $(row.cells[0]).html(name);
-    }
-    else if (add) {
-      row = $('<tr>').attr('id', 'rcmrow'+rid).get(0);
-      col = $('<td>').addClass('mail').html(name).appendTo(row);
-      list.insert_row(row);
+    if (add) {
+      list.insert_row({ id:'rcmrow'+rid, cols:[ { className:'mail', innerHTML:name } ] });
       list.select(rid);
+    }
+    else {
+      list.update_row(rid, [ name ]);
     }
   };
 
@@ -5644,11 +5703,11 @@
   };
 
   // open a jquery UI dialog with the given content
-  this.show_popup_dialog = function(html, title)
+  this.show_popup_dialog = function(html, title, buttons)
   {
     // forward call to parent window
     if (this.is_framed()) {
-      parent.rcmail.show_popup_dialog(html, title);
+      parent.rcmail.show_popup_dialog(html, title, buttons);
       return;
     }
 
@@ -5656,17 +5715,21 @@
       .html(html)
       .dialog({
         title: title,
+        buttons: buttons,
         modal: true,
         resizable: true,
-        width: 580,
+        width: 500,
         close: function(event, ui) { $(this).remove() }
       });
 
-      // resize and center popup
-      var win = $(window), w = win.width(), h = win.height(),
-        width = popup.width(), height = popup.height();
-      popup.dialog('option', { height: Math.min(h-40, height+50), width: Math.min(w-20, width+50) })
-        .dialog('option', 'position', ['center', 'center']);  // only works in a separate call (!?)
+    // resize and center popup
+    var win = $(window), w = win.width(), h = win.height(),
+      width = popup.width(), height = popup.height();
+
+    popup.dialog('option', {
+      height: Math.min(h - 40, height + 75 + (buttons ? 50 : 0)),
+      width: Math.min(w - 20, width + 20)
+    });
   };
 
   // enable/disable buttons for page shifting
@@ -5728,7 +5791,7 @@
   this.set_message_coltypes = function(coltypes, repl, smart_col)
   {
     var list = this.message_list,
-      thead = list ? list.list.tHead : null,
+      thead = list ? list.thead : null,
       cell, col, n, len, th, tr;
 
     this.env.coltypes = coltypes;
@@ -5741,7 +5804,7 @@
 
         for (c=0, len=repl.length; c < len; c++) {
           cell = document.createElement('td');
-          cell.innerHTML = repl[c].html;
+          cell.innerHTML = repl[c].html || '';
           if (repl[c].id) cell.id = repl[c].id;
           if (repl[c].className) cell.className = repl[c].className;
           tr.appendChild(cell);
@@ -5970,9 +6033,9 @@
     var base = this.env.comm_path, k, param = {};
 
     // overwrite task name
-    if (query._action.match(/([a-z]+)\/([a-z0-9-_.]+)/)) {
+    if (query._action.match(/([a-z0-9_-]+)\/([a-z0-9-_.]+)/)) {
       query._action = RegExp.$2;
-      base = base.replace(/\_task=[a-z]+/, '_task='+RegExp.$1);
+      base = base.replace(/\_task=[a-z0-9_-]+/, '_task='+RegExp.$1);
     }
 
     // remove undefined values
@@ -6249,6 +6312,14 @@
     if (location_url && this.env.action != 'compose')  // don't redirect on compose screen, contents might get lost (#1488926)
       this.redirect(location_url);
 
+    // 403 Forbidden response (CSRF prevention) - reload the page.
+    // In case there's a new valid session it will be used, otherwise
+    // login form will be presented (#1488960).
+    if (request.status == 403) {
+      (this.is_framed() ? parent : window).location.reload();
+      return;
+    }
+
     // re-send keep-alive requests after 30 seconds
     if (action == 'keep-alive')
       setTimeout(function(){ ref.keep_alive(); ref.start_keepalive(); }, 30000);
@@ -6362,6 +6433,7 @@
         url: ref.url(ref.env.filedrop.action||'upload', { _id:ref.env.compose_id||ref.env.cid||'', _uploadid:ts, _remote:1 }),
         contentType: formdata ? false : 'multipart/form-data; boundary=' + boundary,
         processData: false,
+        timeout: 0, // disable default timeout set in ajaxSetup()
         data: formdata || multipart,
         headers: {'X-Roundcube-Request': ref.env.request_token},
         beforeSend: function(xhr, s) { if (!formdata && xhr.sendAsBinary) xhr.send = xhr.sendAsBinary; },

--
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