[RCU] Cannot display HTML email messages; Error 500 PART II

Brother Bilo bilo at cerephax.com
Sat Jul 5 01:16:11 CEST 2008

This is a follow-up to my previous message regarding the inability to 
view emails that are composed in HTML rather than plain-text.

I am running:
Apache 2.2.8
PHP 5.2.6
RoundCube 0.2-Alpha
Linux OS (Fedora 9)

Here is the output from my modsec log:


[04/Jul/2008:01:24:52 --0700] db1-0H8AAAEAAAmLNeMAAAAG 
60425 443
GET /mail/?_task=mail&_action=show&_uid=3736&_mbox=INBOX HTTP/1.1
Host: www.xxxxx.com
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: 
Gecko/20080404 Firefox/
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive
Referer: https://www.xxxxx.com/mail/?_task=mail&_mbox=INBOX&_refresh=1
Cookie: language=en; PLASESSID=5obrid2j0rqendoga9ij4qe2b0; 
collapsedNodes=; roundcube_sessid=3b34a1131c8ffc629c21296135b3a009

HTTP/1.0 500 Internal Server Error
X-Powered-By: PHP/5.2.6
Cache-Control: max-age=0
Last-Modified: Fri, 04 Jul 2008 08:23:52 GMT
Etag: "88dd43ecf32e88de878958b06fdccc47"
Content-Encoding: gzip
Vary: Accept-Encoding
Content-Length: 26
Connection: close
Content-Type: text/html; charset=UTF-8

<unreadable binary was here>

Message: Could not set variable "resource.alerted_960903_compression" as 
the collection does not exist.
Message: Warning. Operator EQ match: 0. [id "960903"] [msg "ModSecurity 
does not support content encodings"] [severity "WARNING"]
Apache-Handler: php5-script
Stopwatch: 1215159892541392 243714 (180 2454 243192)
Response-Body-Transformed: Dechunked
Producer: ModSecurity v2.1.7 (Apache 2.x)
Server: Apache/2.2.8 (Fedora) DAV/2 mod_auth_kerb/5.3 PHP/5.2.6 
mod_python/3.3.1 Python/2.5.1 mod_ssl/2.2.8 OpenSSL/0.9.8b



As you can see from this log, I am receiving an Internal Server Error 
500 when attempting to view HTML messages. I am guessing that it may 
have something to do with the "GZIP" Content Encoding. In fact, I'm 
wondering why the content is encoded in GZIP anyway? This isn't the way 
it should be, right? Also, if you're wondering why this is a modsec 
output, it may be because my RoundCube setup runs via HTTPS instead of HTTP.

Any help would be greatly appreciated!!

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