From 110360772101c4c53ffff678d89b9d932d7c2716 Mon Sep 17 00:00:00 2001
From: thomascube <thomas@roundcube.net>
Date: Tue, 01 May 2012 03:04:40 -0400
Subject: [PATCH] Better handling of HTTP request errors; re-send keep-alive requests on failure (#1488449)
---
program/js/app.js | 40 +++++++++++++++++-----------------------
1 files changed, 17 insertions(+), 23 deletions(-)
diff --git a/program/js/app.js b/program/js/app.js
index 12c5426..c440d16 100644
--- a/program/js/app.js
+++ b/program/js/app.js
@@ -54,9 +54,10 @@
// set jQuery ajax options
$.ajaxSetup({
- cache:false,
- error:function(request, status, err){ ref.http_error(request, status, err); },
- beforeSend:function(xmlhttp){ xmlhttp.setRequestHeader('X-Roundcube-Request', ref.env.request_token); }
+ cache: false,
+ timeout: this.env.request_timeout * 1000,
+ error: function(request, status, err){ ref.http_error(request, status, err); },
+ beforeSend: function(xmlhttp){ xmlhttp.setRequestHeader('X-Roundcube-Request', ref.env.request_token); }
});
// set environment variable(s)
@@ -955,8 +956,6 @@
form.action = this.add_url(form.action, '_lang', lang);
form.submit();
- // clear timeout (sending could take longer)
- clearTimeout(this.request_timer);
break;
case 'send-attachment':
@@ -1158,14 +1157,6 @@
if (this.gui_objects.editform)
this.lock_form(this.gui_objects.editform, a);
- // clear pending timer
- if (this.request_timer)
- clearTimeout(this.request_timer);
-
- // set timer for requests
- if (a && this.env.request_timeout)
- this.request_timer = setTimeout(function(){ ref.request_timed_out(); }, this.env.request_timeout * 1000);
-
return id;
};
@@ -1202,13 +1193,6 @@
url = this.env.comm_path;
return url.replace(/_task=[a-z]+/, '_task='+task);
- };
-
- // called when a request timed out
- this.request_timed_out = function()
- {
- this.set_busy(false);
- this.display_message('Request timed out!', 'error');
};
this.reload = function(delay)
@@ -5997,7 +5981,7 @@
return $.ajax({
type: 'GET', url: url, data: { _unlock:(lock?lock:0) }, dataType: 'json',
success: function(data){ ref.http_response(data); },
- error: function(o, status, err) { rcmail.http_error(o, status, err, lock); }
+ error: function(o, status, err) { ref.http_error(o, status, err, lock, action); }
});
};
@@ -6029,7 +6013,7 @@
return $.ajax({
type: 'POST', url: url, data: postdata, dataType: 'json',
success: function(data){ ref.http_response(data); },
- error: function(o, status, err) { rcmail.http_error(o, status, err, lock); }
+ error: function(o, status, err) { ref.http_error(o, status, err, lock, action); }
});
};
@@ -6161,7 +6145,7 @@
};
// handle HTTP request errors
- this.http_error = function(request, status, err, lock)
+ this.http_error = function(request, status, err, lock, action)
{
var errmsg = request.statusText;
@@ -6170,6 +6154,16 @@
if (request.status && errmsg)
this.display_message(this.get_label('servererror') + ' (' + errmsg + ')', 'error');
+ else if (status == 'timeout')
+ this.display_message(this.get_label('requesttimedout'), 'error');
+ else if (request.status == 0 && status != 'abort')
+ this.display_message(this.get_label('servererror') + ' (No connection)', 'error');
+
+ // re-send keep-alive requests after 30 seconds
+ if (action == 'keep-alive')
+ setTimeout(function(){ ref.keep_alive(); }, 30000);
+ else if (action == 'check-recent')
+ setTimeout(function(){ ref.check_for_recent(false); }, 30000);
};
// post the given form to a hidden iframe
--
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