KB #1435 - Proxy Errors when login Horde webmail through CCP in the case of Branded GUI

RESOLUTION

Problem Description: Sometimes when login to Horde Webmail from CCP you can receive the following errors:


 Proxy Error

The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request GET /horde/login.php.

Reason: Error reading from remote server

Apache/2.0.52 (Red Hat) FrontPage/5.0.2.2635 mod_ssl/2.0.52 OpenSSL/0.9.7a
Server at branded.provider.com Port 443

This error could appear only in the case when Branded Access Point is configured for webmail.

Resolution: Reconfigure branding config to redirect requests to http instead of https.

Open file /usr/local/pem/vhosts/<access_point_hd_id>/webspace/httpsdocs/[cp/].branding_htaccess for editing and replace https with http in strings related to Horde webmail:

RewriteRule ^horde/(.*)$ http://webmail.provider.com/horde/$1 [P,L]
RewriteRule ^webmail/<id>/(.*)$ http://webmail.provider.com/horde/imp/redirect.php [P,L]

Additional changes are required for IMP 4.1.x:
Open /usr/local/pem/vhosts/webmail/horde/lib/Horde.php for editing and add following strings to sources:

--- Horde.php   2006-10-19 00:01:38.000000000 -0700
+++ Horde.php.orig      2006-10-19 03:49:17.000000000 -0700
@@ -545,7 +545,6 @@
    if ($force_ssl) {
        $full = true;
    }
-         $full = false;
     if ($full) {
        global $conf, $registry, $browser;
 
@@ -624,7 +623,6 @@
    */
    function applicationUrl($uri, $full = false, $append_session = 0)
    {
-      $full = false;
        if ($full) {
            return Horde::url($uri, $full, $append_session);
    }

Parallels Virtualization and Automation Software

Proxy Errors when login Horde webmail through CCP in the case of Branded GUI

RESOLUTION

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