Re: [squid-users] Did Anyone used ESI with squid ?

Nitesh,

I looked at the ESI specification and it says nothing about
"set_rediredt" - it seems that "set_redirect" is an Akamai extension.

I looked at the source code of squid and found support only for the
variables from the ESI specification:

from ESIVarState.cc:
     addVariable ("HTTP_ACCEPT_LANGUAGE", 20, new ESIVariableLanguage);
     addVariable ("HTTP_COOKIE", 11, new ESIVariableCookie);
     addVariable ("HTTP_HOST", 9, new ESIVariableHost);
     addVariable ("HTTP_REFERER", 12, new ESIVariableReferer);
     addVariable ("HTTP_USER_AGENT", 15, new ESIVariableUserAgent(*this));
     addVariable ("QUERY_STRING", 12, new ESIVariableQuery(uri));

Regards,
Michal

Nitesh Naik napisał(a):
> Michal,
>
> Here is ESI code that I used .
>
> <table>
> <tr>
> <td colspan="2">
> <esi:try>
> <esi:attempt>
> <esi:include src="http://www.yahoo.com"/>
> </esi:attempt>
> <esi:except>
> <!--esi This spot is reserved for your company.s advertising. For more info
> click here -->
> </esi:except>
> </esi:try>
> </td> </tr>
> </table>
> <esi:assign name="date_string" value="This is test"/>
> <esi:vars> $(date_string) </esi:vars>
>
>
> In access log of squid I get following error.
>
> 1110289050.099 0 255.255.255.255 TCP_DENIED/403 0 GET
> http://www.yahoo.com - NONE/- text/html
>
> Enabled access to all in squid.conf now I am getting following error.
>
> 1110351386.705 541 255.255.255.255 TCP_MISS/403 0 GET
> http://www.yahoo.com - ANY_PARENT/<originserver> text/html
>
>
> Is <esi:vars>$set_redirect('http://www.yahoo.com')</esi:vars> works for you
> ?
>
> Regards
> Nitesh Naik
>
>
>
>
> ----- Original Message -----
> From: "Michal Pietrusinski" <michal.pietrusinski@cern.ch>
> To: "Nitesh Naik" <nitesh@zedo.com>
> Cc: <squid-users@squid-cache.org>
> Sent: Tuesday, March 08, 2005 8:34 PM
> Subject: Re: [squid-users] Did Anyone used ESI with squid ?
>
>
>
>>Hi Nitesh,
>>
>>I don't know if squid supports all ESI tags. I try to use only the basic
>><esi:include> tag and have problems.
>>
>>Could you, please, check, if <esi:include> works with your installation?
>>
>>If it works fine, you should see the page properly composed, and in the
>>squid_installation/var/logs/access.log there should be entries, that the
>>template and included pages where taken from the cache.
>>
>>I would be very gratefull if you could do that test.
>>
>>Regards,
>>Michal
>>
>>Nitesh Naik napisał(a):
>>
>>>Michal,
>>>
>>>Thanks for your suggestion.
>>>
>>>Changed parser to custom and used following sample ESI code.
>>>
>>><esi:assign name="test_string" value="This is test"/>
>>><esi:vars> $(test_string) </esi:vars>
>>>
>>>Its Working perfectly fine. Is squid not supporting all ESI tags ?
>>>
>>>Regards
>>>Nitesh Naik
>>>
>>>
>>>----- Original Message -----
>>>From: "Michal Pietrusinski" <michal.pietrusinski@cern.ch>
>>>To: "Nitesh Naik" <nitesh@zedo.com>
>>>Cc: <squid-users@squid-cache.org>
>>>Sent: Tuesday, March 08, 2005 5:57 PM
>>>Subject: Re: [squid-users] Did Anyone used ESI with squid ?
>>>
>>>
>>>
>>>
>>>>Dear Nitesh,
>>>>
>>>>It looks like the header is ok, since ESI processing started. I also had
>>>> problems with parser 'libxml2' - it was constantly reporting some
>>>>parsing errors even on simple pages which were validated with W3C
>>>
>>>validator.
>>>
>>>
>>>>So finally I changed to 'custom' and 'expat' parsers.
>>>>
>>>>I suggest you first try some really simple ESI constructs with 'custom'
>>>>parser.
>>>>
>>>>Regards,
>>>>Michal
>>>>
>>>>
>>>>
>>>>Nitesh Naik napisał(a):
>>>>
>>>>
>>>>>Dear Michal,
>>>>>
>>>>>Thanks for your reply.
>>>>>
>>>>>Let me send you some more information about settings that I am using.
>>>>>
>>>>>We are using squid squid-3.0-PRE3-20041220 for parsing ESI. squid is
>>>>>compiled with esi ( --enable-esi ) but for some reason esi is not
>>>
>>>getting
>>>
>>>
>>>>>parsed and we get following error in the browser.
>>>>>
>>>>>The following error was encountered:
>>>>>
>>>>>ESI Processing failed.
>>>>>The ESI processor returned:
>>>>>esiProcess: Parse error at line 2: junk after document element
>>>>>This means that:
>>>>>The surrogate was not able to process the ESI template. Please report
>>>
>>>this
>>>
>>>
>>>>>error to the webmaster
>>>>>
>>>>>ESI example used
>>>>><esi:assign name="date_string" value="$strftime($time(), '%a, %d %B %Y
>>>>>%H:%M:%S %Z')"/>
>>>>><esi:vars>
>>>>>$(date_string)
>>>>></esi:vars>
>>>>>
>>>>>
>>>>>squid.conf settings
>>>>>
>>>>> httpd_accel_surrogate_id unset-id
>>>>> http_accel_surrogate_remote on
>>>>> esi_parser libxml2
>>>>> cache_peer xyz.com parent 80 0 no-query originserver
>>>>>
>>>>>Apache configuration at origin server
>>>>> <Directory /esi/>
>>>>> Header add Surrogate-Control max-age=60,content="ESI/1.0"
>>>>> ExpiresActive On
>>>>> ExpiresByType text/html "now plus 1 minutes"
>>>>></Directory>
>>>>>
>>>>>
>>>>>When we hit origin server the Surrogate-Control is added to header
>>>>>
>>>>>HTTP/1.1 200 OK
>>>>>Date: Fri, 04 Mar 2005 13:30:03 GMT
>>>>>Surrogate-Control: max-age=60,content="ESI/1.0"
>>>>>P3P: CP="NOI DSP COR CURa ADMa DEVa PSDa OUR BUS UNI COM NAV OTC",
>>>>>policyref="/w3c/p3p.xml"
>>>>>Last-Modified: Fri, 04 Mar 2005 12:50:06 GMT
>>>>>ETag: "13c8a1-133-4228597e"
>>>>>Accept-Ranges: bytes
>>>>>Content-Length: 307
>>>>>Connection: close
>>>>>Content-Type: text/html
>>>>>
>>>>>Regards
>>>>>Nitesh Naik
>>>>>
>>>>>
>>>>>
>>>>>----- Original Message -----
>>>>>From: "Michal Pietrusinski" <michal.pietrusinski@cern.ch>
>>>>>To: <squid-users@squid-cache.org>
>>>>>Sent: Tuesday, March 08, 2005 5:26 PM
>>>>>Subject: Re: [squid-users] Did Anyone used ESI with squid ?
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>>Dear Nitesh,
>>>>>>
>>>>>>I'm also trying to use ESI with squid - I installed Squid 3, (remember
>>>>>>to use --enable-esi with configure) and pages are composed fine (I use
>>>>>><esi:include>), but templates and fragments are not cached.
>>>>>>
>>>>>>Remember that your pages must have appropriate HTTP headers in order
>
> to
>
>>>>>>make squid parsing it as ESI templates.
>>>>>>
>>>>>>I hope you are more lucky and will have your pages cached.
>>>>>>
>>>>>>Regards,
>>>>>>Michal Pietrusinski
>>>>>>
>>>>>>
>>>>>>
>>>>>>Nitesh Naik napisał(a):
>>>>>>
>>>>>>
>>>>>>
>>>>>>>Hi,
>>>>>>>
>>>>>>>I am having problem with configuring squid with ESI parsing. Did
>
> anyone
>
>>>>>>>implemented it ?
>>>>>>>
>>>>>>>
>>>>>>>Regards
>>>>>>>Nitesh Naik
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>
Received on Thu Mar 10 2005 - 09:48:52 MST