From 752eedd9647468aa40028f5e73b80adb88957b34 Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Wed, 31 Oct 2012 04:37:04 -0400
Subject: [PATCH] Fix possible HTTP DoS on error in keep-alive requests (#1488782)

---
 program/js/app.js |  127 ++++++++++++++++++++++--------------------
 1 files changed, 66 insertions(+), 61 deletions(-)

diff --git a/program/js/app.js b/program/js/app.js
index 8d02f6f..17f423e 100644
--- a/program/js/app.js
+++ b/program/js/app.js
@@ -60,6 +60,8 @@
     beforeSend: function(xmlhttp){ xmlhttp.setRequestHeader('X-Roundcube-Request', ref.env.request_token); }
   });
 
+  $(window).bind('beforeunload', function() { rcmail.unload = true; });
+
   // set environment variable(s)
   this.set_env = function(p, value)
   {
@@ -1457,29 +1459,21 @@
 
   this.doc_mouse_up = function(e)
   {
-    var model, list, li, id;
+    var model, list, id;
 
     // ignore event if jquery UI dialog is open
     if ($(rcube_event.get_target(e)).closest('.ui-dialog, .ui-widget-overlay').length)
       return;
 
-    if (list = this.message_list) {
-      if (!rcube_mouse_is_over(e, list.list.parentNode))
-        list.blur();
-      else
-        list.focus();
+    if (list = this.message_list)
       model = this.env.mailboxes;
-    }
-    else if (list = this.contact_list) {
-      if (!rcube_mouse_is_over(e, list.list.parentNode))
-        list.blur();
-      else
-        list.focus();
+    else if (list = this.contact_list)
       model = this.env.contactfolders;
-    }
-    else if (this.ksearch_value) {
+    else if (this.ksearch_value)
       this.ksearch_blur();
-    }
+
+    if (list && !rcube_mouse_is_over(e, list.list.parentNode))
+      list.blur();
 
     // handle mouse release when dragging
     if (this.drag_active && model && this.env.last_folder_target) {
@@ -1622,7 +1616,7 @@
     for (i=0; i<cols.length; i++)
       if (cols[i].id && cols[i].id.match(/^rcm/)) {
         name = cols[i].id.replace(/^rcm/, '');
-        this.env.coltypes.push(name == 'to' ? 'from' : name);
+        this.env.coltypes.push(name);
       }
 
     if ((found = $.inArray('flag', this.env.coltypes)) >= 0)
@@ -1901,7 +1895,7 @@
       // make sure new columns are added at the end of the list
       var i, idx, name, newcols = [], oldcols = this.env.coltypes;
       for (i=0; i<oldcols.length; i++) {
-        name = oldcols[i] == 'to' ? 'from' : oldcols[i];
+        name = oldcols[i];
         idx = $.inArray(name, cols);
         if (idx != -1) {
           newcols.push(name);
@@ -2648,34 +2642,37 @@
   // set a specific flag to one or more messages
   this.mark_message = function(flag, uid)
   {
-    var a_uids = [], r_uids = [], len, n, id,
-      selection = this.message_list ? this.message_list.get_selection() : [];
+    var a_uids = [], r_uids = [], len, n, id, selection,
+      list = this.message_list;
 
     if (uid)
       a_uids[0] = uid;
     else if (this.env.uid)
       a_uids[0] = this.env.uid;
-    else if (this.message_list) {
+    else if (list) {
+      selection = list.get_selection();
       for (n=0, len=selection.length; n<len; n++) {
           a_uids.push(selection[n]);
       }
     }
 
-    if (!this.message_list)
+    if (!list)
       r_uids = a_uids;
-    else
+    else {
+      list.focus();
       for (n=0, len=a_uids.length; n<len; n++) {
         id = a_uids[n];
-        if ((flag=='read' && this.message_list.rows[id].unread) 
-            || (flag=='unread' && !this.message_list.rows[id].unread)
-            || (flag=='delete' && !this.message_list.rows[id].deleted)
-            || (flag=='undelete' && this.message_list.rows[id].deleted)
-            || (flag=='flagged' && !this.message_list.rows[id].flagged)
-            || (flag=='unflagged' && this.message_list.rows[id].flagged))
+        if ((flag=='read' && list.rows[id].unread) 
+            || (flag=='unread' && !list.rows[id].unread)
+            || (flag=='delete' && !list.rows[id].deleted)
+            || (flag=='undelete' && list.rows[id].deleted)
+            || (flag=='flagged' && !list.rows[id].flagged)
+            || (flag=='unflagged' && list.rows[id].flagged))
         {
           r_uids.push(id);
         }
       }
+    }
 
     // nothing to do
     if (!r_uids.length && !this.select_all_mode)
@@ -3273,8 +3270,7 @@
       input_message = $("[name='_message']"),
       message = input_message.val(),
       is_html = ($("input[name='_is_html']").val() == '1'),
-      sig = this.env.identity,
-      sig_separator = this.env.sig_above && (this.env.compose_mode == 'reply' || this.env.compose_mode == 'forward') ? '---' : '-- ';
+      sig = this.env.identity;
 
     // enable manual signature insert
     if (this.env.signatures && this.env.signatures[id]) {
@@ -3287,12 +3283,8 @@
     if (!is_html) {
       // remove the 'old' signature
       if (show_sig && sig && this.env.signatures && this.env.signatures[sig]) {
-
-        sig = this.env.signatures[sig].is_html ? this.env.signatures[sig].plain_text : this.env.signatures[sig].text;
+        sig = this.env.signatures[sig].text;
         sig = sig.replace(/\r\n/g, '\n');
-
-        if (!sig.match(/^--[ -]\n/m))
-          sig = sig_separator + '\n' + sig;
 
         p = this.env.sig_above ? message.indexOf(sig) : message.lastIndexOf(sig);
         if (p >= 0)
@@ -3300,11 +3292,8 @@
       }
       // add the new signature string
       if (show_sig && this.env.signatures && this.env.signatures[id]) {
-        sig = this.env.signatures[id]['is_html'] ? this.env.signatures[id]['plain_text'] : this.env.signatures[id]['text'];
+        sig = this.env.signatures[id].text;
         sig = sig.replace(/\r\n/g, '\n');
-
-        if (!sig.match(/^--[ -]\n/m))
-          sig = sig_separator + '\n' + sig;
 
         if (this.env.sig_above) {
           if (p >= 0) { // in place of removed signature
@@ -3369,21 +3358,8 @@
         }
       }
 
-      if (this.env.signatures[id]) {
-        if (this.env.signatures[id].is_html) {
-          sig = this.env.signatures[id].text;
-          if (!this.env.signatures[id].plain_text.match(/^--[ -]\r?\n/m))
-            sig = sig_separator + '<br />' + sig;
-        }
-        else {
-          sig = this.env.signatures[id].text;
-          if (!sig.match(/^--[ -]\r?\n/m))
-            sig = sig_separator + '\n' + sig;
-          sig = '<pre>' + sig + '</pre>';
-        }
-
-        sigElem.innerHTML = sig;
-      }
+      if (this.env.signatures[id])
+        sigElem.innerHTML = this.env.signatures[id].html;
     }
 
     this.env.identity = id;
@@ -3998,8 +3974,7 @@
 
     // if a group is currently selected, and there is at least one contact selected
     // thend we can enable the group-remove-selected command
-    this.enable_command('group-remove-selected', typeof this.env.group != 'undefined' && list.selection.length > 0);
-
+    this.enable_command('group-remove-selected', this.env.group && list.selection.length > 0);
     this.enable_command('compose', this.env.group || list.selection.length > 0);
     this.enable_command('edit', id && writable);
     this.enable_command('delete', list.selection.length && writable);
@@ -5598,6 +5573,32 @@
     this.messages = {};
   };
 
+  // open a jquery UI dialog with the given content
+  this.show_popup_dialog = function(html, title)
+  {
+    // forward call to parent window
+    if (this.is_framed()) {
+      parent.rcmail.show_popup_dialog(html, title);
+      return;
+    }
+
+    var popup = $('<div class="popup">')
+      .html(html)
+      .dialog({
+        title: title,
+        modal: true,
+        resizable: true,
+        width: 580,
+        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 (!?)
+  };
+
   // mark a mailbox as selected and set environment variable
   this.select_folder = function(name, prefix, encode)
   {
@@ -5644,7 +5645,7 @@
 
   // for reordering column array (Konqueror workaround)
   // and for setting some message list global variables
-  this.set_message_coltypes = function(coltypes, repl)
+  this.set_message_coltypes = function(coltypes, repl, smart_col)
   {
     var list = this.message_list,
       thead = list ? list.list.tHead : null,
@@ -5672,7 +5673,7 @@
 
       for (n=0, len=this.env.coltypes.length; n<len; n++) {
         col = this.env.coltypes[n];
-        if ((cell = thead.rows[0].cells[n]) && (col=='from' || col=='to')) {
+        if ((cell = thead.rows[0].cells[n]) && (col == 'from' || col == 'to' || col == 'fromto')) {
           cell.id = 'rcm'+col;
           // if we have links for sorting, it's a bit more complicated...
           if (cell.firstChild && cell.firstChild.tagName.toLowerCase()=='a') {
@@ -5680,7 +5681,7 @@
             cell.onclick = function(){ return rcmail.command('sort', this.__col, this); };
             cell.__col = col;
           }
-          cell.innerHTML = this.get_label(col);
+          cell.innerHTML = this.get_label(col == 'fromto' ? smart_col : col);
         }
       }
     }
@@ -6129,6 +6130,10 @@
     this.set_busy(false, null, lock);
     request.abort();
 
+    // don't display error message on page unload (#1488547)
+    if (this.unload)
+      return;
+
     if (request.status && errmsg)
       this.display_message(this.get_label('servererror') + ' (' + errmsg + ')', 'error');
     else if (status == 'timeout')
@@ -6138,9 +6143,9 @@
 
     // re-send keep-alive requests after 30 seconds
     if (action == 'keep-alive')
-      setTimeout(function(){ ref.keep_alive(); }, 30000);
+      setTimeout(function(){ ref.keep_alive(); ref.start_keepalive(); }, 30000);
     else if (action == 'check-recent')
-      setTimeout(function(){ ref.check_for_recent(false); }, 30000);
+      setTimeout(function(){ ref.check_for_recent(false); ref.start_keepalive(); }, 30000);
   };
 
   // post the given form to a hidden iframe

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