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Posted to users@httpd.apache.org by Craig Dunigan <cd...@doit.wisc.edu> on 2005/06/08 20:14:34 UTC

Re: [users@httpd] Web server corrupting image?

I'm guessing that you are using a mod_perl handler to serve these, and it's
going wrong on the second one.  I opened it in vim and got this:

dDate(">=",2003,31,1)^@^Mjkey=00130779^B5^DÃµA^B^B^B^A^@aÃ^^^DÃ¸Ã¯^QJÃ¸^Ge^@^@p<97>~hÃ²d^@^@q<97>~hÃ²d^@^@^L954925515513 
$obj->parsedDate(">=",2003,27,1)^@^Mjkey=00004348^B5^DÃµA^B^B^B^A^@aÃ^^^DÃ¸Ã°^QJÃ¸^Ge^@^@p<97>~hÃ²d^@^@q<97>~hÃ²d^@^@^L954925269341 
$obj->parsedDate(">=",2003,32,1)^@^Mjkey=00008843^B5^DÃµA^B^B^B^A^@aÃ^^^DÃ¸Ã^UJÃ¸^Ge^@^@p<97>~hÃ²d^@^@q<97>~hÃ²d^@^@^L954925516554 
$obj->parsedDate(">=",2000,38,1)^@^Mjkey=00003088^B5^DÃµA^B^B^B^A^@aÃ^^^DÃ¸Ã^UJÃ¸^Ge^@^@p<97>~hÃ²d^@^@q<97>~hÃ²d^@^@^L954925517577 
$obj->parsedDate(">=",1999,26,1)^@^Mjkey=00023172^B5^DÃµA^B^B^B^A^@aÃ^^^DÃ¸Ã^UJÃ¸^Ge^@^@p<97>~hÃ²d^@^@q<97>~hÃ²d^@^@^L954925517584 
$obj->parsedDate(">=",2001,21,1)^@^Mjkey=00002881^B5^DÃµA^B^B^B^C^@d^@Ã^^^DÃ¸Ã^UJÃ¸^Ge^@^@p<97>~hÃ²d^@^@q<97>~hÃ²d^@^@^O110978978737417 
$obj->parsedDate(">=",2000,14,1)^@^Mjkey=00133570^B5^DÃµA^B^B^B^A^@aÃ^^^DÃ¸Ã^UJÃ¸^Ge^@^@p<97>~hÃ²d^@^@q<97>~hÃ²d^@^@^L

Looks like perl code to me, like maybe you're serving an un-dereferenced code 
ref?

On Wed, 8 Jun 2005, Andres Monroy-Hernandez wrote:

> Hello,
> 
> I have two identical images (gifs). One is displayed correctly, the 
> other one not. I hope you can provide any hints.
> 
> In order to make sure both files are identical I compared their 
> hexadecimal fingerprint by doing:
> 
> % od good.gif > good.hex ; od bad.gif > bad.hex; diff bad.hex good.hex
> 
> I checked the HTTP headers for both images and everything looks fine 
> looks fine: Content-Type and Content-Length are the same.
> The Etag is different, but I believe this is normal.
> 
> The good one:
> ---------------------------
> Response Headers - http://openurl.uquebec.ca:3210/sfxctrl/pix.1.0/good.gif
> Date: Wed, 08 Jun 2005 17:02:08 GMT
> Server: Apache/2.0.52 (Unix) mod_ssl/2.0.52 OpenSSL/0.9.7e DAV/2
> Last-Modified: Sun, 13 Jun 2004 08:44:09 GMT
> Etag: "1540fa-2a8-f9d9e840"
> Accept-Ranges: bytes
> Content-Length: 680
> Keep-Alive: timeout=15, max=99
> Connection: Keep-Alive
> Content-Type: image/gif
> 
> 200 OK
> ---------------------------
> 
> 
> The bad one:
> ---------------------------
> http://openurl.uquebec.ca:3210/sfxctrl/pix.1.0/bad.gif
> Date: Wed, 08 Jun 2005 17:00:48 GMT
> Server: Apache/2.0.52 (Unix) mod_ssl/2.0.52 OpenSSL/0.9.7e DAV/2
> Last-Modified: Sun, 13 Jun 2004 08:44:09 GMT
> Etag: "154056-2a8-f9d9e840"
> Accept-Ranges: bytes
> Content-Length: 680
> Keep-Alive: timeout=15, max=100
> Connection: Keep-Alive
> Content-Type: image/gif
> 
> 200 OK
> 
> ---------------------------
> 
> 
> Thanks in advance.
> 
> ---------------------------------------------------------------------
> The official User-To-User support forum of the Apache HTTP Server Project.
> See <URL:http://httpd.apache.org/userslist.html> for more info.
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> 

-- 
Craig Dunigan
IS Technical Services Specialist (I don't know what it means, either)
Middleware - Enterprise Info Systems - Department of Info Technology
University of Wisconsin, Madison

opinions expressed are my own, not the University's


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Re: [users@httpd] Web server corrupting image?

Posted by Craig Dunigan <cd...@doit.wisc.edu>.

Can you verify that bad.gif begins with the string 'GIF'?  Can it be viewed in 
an app on the server itself?  If the files are truly identical (one is a copy of 
the other), just a diff will report that - does it?

Are you sure there are no leftover PerlHandler or SetHandler or similar
statements in httpd.conf?

I find it very odd to see actual perl source code in a served file, just because 
mod_perl is configured.  Was there anything unusual about the compilation of 
Apache or mod_perl on this server?


On Wed, 8 Jun 2005, Andres Monroy-Hernandez wrote:

> Sorry I was doing some changes. The URLs are back.
> 
> Craig Dunigan wrote:
> 
> >Same URL?  'Cause I get a 404 on bad.gif now.
> >
> >On Wed, 8 Jun 2005, Andres Monroy-Hernandez wrote:
> >
> >  
> >
> >>Good catch. I do have mod_perl enabled, but the images are real files, 
> >>not images served by a mod_perl application.
> >>I restarted apache and removed the configuration elements of mod_perl. I 
> >>still get the same problem. Now, when looking at the response I no 
> >>longer see the perl code, but still the browser can't understand it.
> >>
> >>Craig Dunigan wrote:
> >>
> >>    
> >>
> >>>I'm guessing that you are using a mod_perl handler to serve these, and it's
> >>>going wrong on the second one.  I opened it in vim and got this:
> >>>
> >>>dDate(">=",2003,31,1)^@^Mjkey=00130779^B5^DÃµA^B^B^B^A^@aÃ^^^DÃ¸Ã¯^QJÃ¸^Ge^@^@p<97>~hÃ²d^@^@q<97>~hÃ²d^@^@^L954925515513 
> >>>$obj->parsedDate(">=",2003,27,1)^@^Mjkey=00004348^B5^DÃµA^B^B^B^A^@aÃ^^^DÃ¸Ã°^QJÃ¸^Ge^@^@p<97>~hÃ²d^@^@q<97>~hÃ²d^@^@^L954925269341 
> >>>$obj->parsedDate(">=",2003,32,1)^@^Mjkey=00008843^B5^DÃµA^B^B^B^A^@aÃ^^^DÃ¸Ã^UJÃ¸^Ge^@^@p<97>~hÃ²d^@^@q<97>~hÃ²d^@^@^L954925516554 
> >>>$obj->parsedDate(">=",2000,38,1)^@^Mjkey=00003088^B5^DÃµA^B^B^B^A^@aÃ^^^DÃ¸Ã^UJÃ¸^Ge^@^@p<97>~hÃ²d^@^@q<97>~hÃ²d^@^@^L954925517577 
> >>>$obj->parsedDate(">=",1999,26,1)^@^Mjkey=00023172^B5^DÃµA^B^B^B^A^@aÃ^^^DÃ¸Ã^UJÃ¸^Ge^@^@p<97>~hÃ²d^@^@q<97>~hÃ²d^@^@^L954925517584 
> >>>$obj->parsedDate(">=",2001,21,1)^@^Mjkey=00002881^B5^DÃµA^B^B^B^C^@d^@Ã^^^DÃ¸Ã^UJÃ¸^Ge^@^@p<97>~hÃ²d^@^@q<97>~hÃ²d^@^@^O110978978737417 
> >>>$obj->parsedDate(">=",2000,14,1)^@^Mjkey=00133570^B5^DÃµA^B^B^B^A^@aÃ^^^DÃ¸Ã^UJÃ¸^Ge^@^@p<97>~hÃ²d^@^@q<97>~hÃ²d^@^@^L
> >>>
> >>>Looks like perl code to me, like maybe you're serving an un-dereferenced code 
> >>>ref?
> >>>
> >>>On Wed, 8 Jun 2005, Andres Monroy-Hernandez wrote:
> >>>
> >>> 
> >>>
> >>>      
> >>>
> >>>>Hello,
> >>>>
> >>>>I have two identical images (gifs). One is displayed correctly, the 
> >>>>other one not. I hope you can provide any hints.
> >>>>
> >>>>In order to make sure both files are identical I compared their 
> >>>>hexadecimal fingerprint by doing:
> >>>>
> >>>>% od good.gif > good.hex ; od bad.gif > bad.hex; diff bad.hex good.hex
> >>>>
> >>>>I checked the HTTP headers for both images and everything looks fine 
> >>>>looks fine: Content-Type and Content-Length are the same.
> >>>>The Etag is different, but I believe this is normal.
> >>>>
> >>>>The good one:
> >>>>---------------------------
> >>>>Response Headers - http://openurl.uquebec.ca:3210/sfxctrl/pix.1.0/good.gif
> >>>>Date: Wed, 08 Jun 2005 17:02:08 GMT
> >>>>Server: Apache/2.0.52 (Unix) mod_ssl/2.0.52 OpenSSL/0.9.7e DAV/2
> >>>>Last-Modified: Sun, 13 Jun 2004 08:44:09 GMT
> >>>>Etag: "1540fa-2a8-f9d9e840"
> >>>>Accept-Ranges: bytes
> >>>>Content-Length: 680
> >>>>Keep-Alive: timeout=15, max=99
> >>>>Connection: Keep-Alive
> >>>>Content-Type: image/gif
> >>>>
> >>>>200 OK
> >>>>---------------------------
> >>>>
> >>>>
> >>>>The bad one:
> >>>>---------------------------
> >>>>http://openurl.uquebec.ca:3210/sfxctrl/pix.1.0/bad.gif
> >>>>Date: Wed, 08 Jun 2005 17:00:48 GMT
> >>>>Server: Apache/2.0.52 (Unix) mod_ssl/2.0.52 OpenSSL/0.9.7e DAV/2
> >>>>Last-Modified: Sun, 13 Jun 2004 08:44:09 GMT
> >>>>Etag: "154056-2a8-f9d9e840"
> >>>>Accept-Ranges: bytes
> >>>>Content-Length: 680
> >>>>Keep-Alive: timeout=15, max=100
> >>>>Connection: Keep-Alive
> >>>>Content-Type: image/gif
> >>>>
> >>>>200 OK
> >>>>
> >>>>---------------------------
> >>>>
> >>>>
> >>>>Thanks in advance.
> >>>>


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Re: [users@httpd] Web server corrupting image?

Posted by Andres Monroy-Hernandez <an...@exlibris-usa.com>.

Sorry I was doing some changes. The URLs are back.

Craig Dunigan wrote:

>Same URL?  'Cause I get a 404 on bad.gif now.
>
>On Wed, 8 Jun 2005, Andres Monroy-Hernandez wrote:
>
>  
>
>>Good catch. I do have mod_perl enabled, but the images are real files, 
>>not images served by a mod_perl application.
>>I restarted apache and removed the configuration elements of mod_perl. I 
>>still get the same problem. Now, when looking at the response I no 
>>longer see the perl code, but still the browser can't understand it.
>>
>>Craig Dunigan wrote:
>>
>>    
>>
>>>I'm guessing that you are using a mod_perl handler to serve these, and it's
>>>going wrong on the second one.  I opened it in vim and got this:
>>>
>>>dDate(">=",2003,31,1)^@^Mjkey=00130779^B5^DõA^B^B^B^A^@aØ^^^Døï^QJø^Ge^@^@p<97>~hòd^@^@q<97>~hòd^@^@^L954925515513 
>>>$obj->parsedDate(">=",2003,27,1)^@^Mjkey=00004348^B5^DõA^B^B^B^A^@aØ^^^Døð^QJø^Ge^@^@p<97>~hòd^@^@q<97>~hòd^@^@^L954925269341 
>>>$obj->parsedDate(">=",2003,32,1)^@^Mjkey=00008843^B5^DõA^B^B^B^A^@aØ^^^DøÙ^UJø^Ge^@^@p<97>~hòd^@^@q<97>~hòd^@^@^L954925516554 
>>>$obj->parsedDate(">=",2000,38,1)^@^Mjkey=00003088^B5^DõA^B^B^B^A^@aØ^^^DøÚ^UJø^Ge^@^@p<97>~hòd^@^@q<97>~hòd^@^@^L954925517577 
>>>$obj->parsedDate(">=",1999,26,1)^@^Mjkey=00023172^B5^DõA^B^B^B^A^@aØ^^^DøÛ^UJø^Ge^@^@p<97>~hòd^@^@q<97>~hòd^@^@^L954925517584 
>>>$obj->parsedDate(">=",2001,21,1)^@^Mjkey=00002881^B5^DõA^B^B^B^C^@d^@Ø^^^DøÜ^UJø^Ge^@^@p<97>~hòd^@^@q<97>~hòd^@^@^O110978978737417 
>>>$obj->parsedDate(">=",2000,14,1)^@^Mjkey=00133570^B5^DõA^B^B^B^A^@aØ^^^DøÝ^UJø^Ge^@^@p<97>~hòd^@^@q<97>~hòd^@^@^L
>>>
>>>Looks like perl code to me, like maybe you're serving an un-dereferenced code 
>>>ref?
>>>
>>>On Wed, 8 Jun 2005, Andres Monroy-Hernandez wrote:
>>>
>>> 
>>>
>>>      
>>>
>>>>Hello,
>>>>
>>>>I have two identical images (gifs). One is displayed correctly, the 
>>>>other one not. I hope you can provide any hints.
>>>>
>>>>In order to make sure both files are identical I compared their 
>>>>hexadecimal fingerprint by doing:
>>>>
>>>>% od good.gif > good.hex ; od bad.gif > bad.hex; diff bad.hex good.hex
>>>>
>>>>I checked the HTTP headers for both images and everything looks fine 
>>>>looks fine: Content-Type and Content-Length are the same.
>>>>The Etag is different, but I believe this is normal.
>>>>
>>>>The good one:
>>>>---------------------------
>>>>Response Headers - http://openurl.uquebec.ca:3210/sfxctrl/pix.1.0/good.gif
>>>>Date: Wed, 08 Jun 2005 17:02:08 GMT
>>>>Server: Apache/2.0.52 (Unix) mod_ssl/2.0.52 OpenSSL/0.9.7e DAV/2
>>>>Last-Modified: Sun, 13 Jun 2004 08:44:09 GMT
>>>>Etag: "1540fa-2a8-f9d9e840"
>>>>Accept-Ranges: bytes
>>>>Content-Length: 680
>>>>Keep-Alive: timeout=15, max=99
>>>>Connection: Keep-Alive
>>>>Content-Type: image/gif
>>>>
>>>>200 OK
>>>>---------------------------
>>>>
>>>>
>>>>The bad one:
>>>>---------------------------
>>>>http://openurl.uquebec.ca:3210/sfxctrl/pix.1.0/bad.gif
>>>>Date: Wed, 08 Jun 2005 17:00:48 GMT
>>>>Server: Apache/2.0.52 (Unix) mod_ssl/2.0.52 OpenSSL/0.9.7e DAV/2
>>>>Last-Modified: Sun, 13 Jun 2004 08:44:09 GMT
>>>>Etag: "154056-2a8-f9d9e840"
>>>>Accept-Ranges: bytes
>>>>Content-Length: 680
>>>>Keep-Alive: timeout=15, max=100
>>>>Connection: Keep-Alive
>>>>Content-Type: image/gif
>>>>
>>>>200 OK
>>>>
>>>>---------------------------
>>>>
>>>>
>>>>Thanks in advance.
>>>>
>>>>---------------------------------------------------------------------
>>>>The official User-To-User support forum of the Apache HTTP Server Project.
>>>>See <URL:http://httpd.apache.org/userslist.html> for more info.
>>>>To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
>>>>  "   from the digest: users-digest-unsubscribe@httpd.apache.org
>>>>For additional commands, e-mail: users-help@httpd.apache.org
>>>>
>>>>   
>>>>
>>>>        
>>>>
>>> 
>>>
>>>      
>>>
>>---------------------------------------------------------------------
>>The official User-To-User support forum of the Apache HTTP Server Project.
>>See <URL:http://httpd.apache.org/userslist.html> for more info.
>>To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
>>   "   from the digest: users-digest-unsubscribe@httpd.apache.org
>>For additional commands, e-mail: users-help@httpd.apache.org
>>
>>    
>>
>
>  
>


---------------------------------------------------------------------
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   "   from the digest: users-digest-unsubscribe@httpd.apache.org
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Re: [users@httpd] Web server corrupting image?

Posted by Craig Dunigan <cd...@doit.wisc.edu>.

Same URL?  'Cause I get a 404 on bad.gif now.

On Wed, 8 Jun 2005, Andres Monroy-Hernandez wrote:

> Good catch. I do have mod_perl enabled, but the images are real files, 
> not images served by a mod_perl application.
> I restarted apache and removed the configuration elements of mod_perl. I 
> still get the same problem. Now, when looking at the response I no 
> longer see the perl code, but still the browser can't understand it.
> 
> Craig Dunigan wrote:
> 
> >I'm guessing that you are using a mod_perl handler to serve these, and it's
> >going wrong on the second one.  I opened it in vim and got this:
> >
> >dDate(">=",2003,31,1)^@^Mjkey=00130779^B5^DÃµA^B^B^B^A^@aÃ^^^DÃ¸Ã¯^QJÃ¸^Ge^@^@p<97>~hÃ²d^@^@q<97>~hÃ²d^@^@^L954925515513 
> >$obj->parsedDate(">=",2003,27,1)^@^Mjkey=00004348^B5^DÃµA^B^B^B^A^@aÃ^^^DÃ¸Ã°^QJÃ¸^Ge^@^@p<97>~hÃ²d^@^@q<97>~hÃ²d^@^@^L954925269341 
> >$obj->parsedDate(">=",2003,32,1)^@^Mjkey=00008843^B5^DÃµA^B^B^B^A^@aÃ^^^DÃ¸Ã^UJÃ¸^Ge^@^@p<97>~hÃ²d^@^@q<97>~hÃ²d^@^@^L954925516554 
> >$obj->parsedDate(">=",2000,38,1)^@^Mjkey=00003088^B5^DÃµA^B^B^B^A^@aÃ^^^DÃ¸Ã^UJÃ¸^Ge^@^@p<97>~hÃ²d^@^@q<97>~hÃ²d^@^@^L954925517577 
> >$obj->parsedDate(">=",1999,26,1)^@^Mjkey=00023172^B5^DÃµA^B^B^B^A^@aÃ^^^DÃ¸Ã^UJÃ¸^Ge^@^@p<97>~hÃ²d^@^@q<97>~hÃ²d^@^@^L954925517584 
> >$obj->parsedDate(">=",2001,21,1)^@^Mjkey=00002881^B5^DÃµA^B^B^B^C^@d^@Ã^^^DÃ¸Ã^UJÃ¸^Ge^@^@p<97>~hÃ²d^@^@q<97>~hÃ²d^@^@^O110978978737417 
> >$obj->parsedDate(">=",2000,14,1)^@^Mjkey=00133570^B5^DÃµA^B^B^B^A^@aÃ^^^DÃ¸Ã^UJÃ¸^Ge^@^@p<97>~hÃ²d^@^@q<97>~hÃ²d^@^@^L
> >
> >Looks like perl code to me, like maybe you're serving an un-dereferenced code 
> >ref?
> >
> >On Wed, 8 Jun 2005, Andres Monroy-Hernandez wrote:
> >
> >  
> >
> >>Hello,
> >>
> >>I have two identical images (gifs). One is displayed correctly, the 
> >>other one not. I hope you can provide any hints.
> >>
> >>In order to make sure both files are identical I compared their 
> >>hexadecimal fingerprint by doing:
> >>
> >>% od good.gif > good.hex ; od bad.gif > bad.hex; diff bad.hex good.hex
> >>
> >>I checked the HTTP headers for both images and everything looks fine 
> >>looks fine: Content-Type and Content-Length are the same.
> >>The Etag is different, but I believe this is normal.
> >>
> >>The good one:
> >>---------------------------
> >>Response Headers - http://openurl.uquebec.ca:3210/sfxctrl/pix.1.0/good.gif
> >>Date: Wed, 08 Jun 2005 17:02:08 GMT
> >>Server: Apache/2.0.52 (Unix) mod_ssl/2.0.52 OpenSSL/0.9.7e DAV/2
> >>Last-Modified: Sun, 13 Jun 2004 08:44:09 GMT
> >>Etag: "1540fa-2a8-f9d9e840"
> >>Accept-Ranges: bytes
> >>Content-Length: 680
> >>Keep-Alive: timeout=15, max=99
> >>Connection: Keep-Alive
> >>Content-Type: image/gif
> >>
> >>200 OK
> >>---------------------------
> >>
> >>
> >>The bad one:
> >>---------------------------
> >>http://openurl.uquebec.ca:3210/sfxctrl/pix.1.0/bad.gif
> >>Date: Wed, 08 Jun 2005 17:00:48 GMT
> >>Server: Apache/2.0.52 (Unix) mod_ssl/2.0.52 OpenSSL/0.9.7e DAV/2
> >>Last-Modified: Sun, 13 Jun 2004 08:44:09 GMT
> >>Etag: "154056-2a8-f9d9e840"
> >>Accept-Ranges: bytes
> >>Content-Length: 680
> >>Keep-Alive: timeout=15, max=100
> >>Connection: Keep-Alive
> >>Content-Type: image/gif
> >>
> >>200 OK
> >>
> >>---------------------------
> >>
> >>
> >>Thanks in advance.
> >>
> >>---------------------------------------------------------------------
> >>The official User-To-User support forum of the Apache HTTP Server Project.
> >>See <URL:http://httpd.apache.org/userslist.html> for more info.
> >>To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
> >>   "   from the digest: users-digest-unsubscribe@httpd.apache.org
> >>For additional commands, e-mail: users-help@httpd.apache.org
> >>
> >>    
> >>
> >
> >  
> >
> 
> 
> ---------------------------------------------------------------------
> The official User-To-User support forum of the Apache HTTP Server Project.
> See <URL:http://httpd.apache.org/userslist.html> for more info.
> To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
>    "   from the digest: users-digest-unsubscribe@httpd.apache.org
> For additional commands, e-mail: users-help@httpd.apache.org
> 

-- 
Craig Dunigan
IS Technical Services Specialist (I don't know what it means, either)
Middleware - Enterprise Info Systems - Department of Info Technology
University of Wisconsin, Madison

opinions expressed are my own, not the University's


---------------------------------------------------------------------
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See <URL:http://httpd.apache.org/userslist.html> for more info.
To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
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Re: [users@httpd] Web server corrupting image?

Posted by Andres Monroy-Hernandez <an...@exlibris-usa.com>.

Good catch. I do have mod_perl enabled, but the images are real files, 
not images served by a mod_perl application.
I restarted apache and removed the configuration elements of mod_perl. I 
still get the same problem. Now, when looking at the response I no 
longer see the perl code, but still the browser can't understand it.

Craig Dunigan wrote:

>I'm guessing that you are using a mod_perl handler to serve these, and it's
>going wrong on the second one.  I opened it in vim and got this:
>
>dDate(">=",2003,31,1)^@^Mjkey=00130779^B5^DõA^B^B^B^A^@aØ^^^Døï^QJø^Ge^@^@p<97>~hòd^@^@q<97>~hòd^@^@^L954925515513 
>$obj->parsedDate(">=",2003,27,1)^@^Mjkey=00004348^B5^DõA^B^B^B^A^@aØ^^^Døð^QJø^Ge^@^@p<97>~hòd^@^@q<97>~hòd^@^@^L954925269341 
>$obj->parsedDate(">=",2003,32,1)^@^Mjkey=00008843^B5^DõA^B^B^B^A^@aØ^^^DøÙ^UJø^Ge^@^@p<97>~hòd^@^@q<97>~hòd^@^@^L954925516554 
>$obj->parsedDate(">=",2000,38,1)^@^Mjkey=00003088^B5^DõA^B^B^B^A^@aØ^^^DøÚ^UJø^Ge^@^@p<97>~hòd^@^@q<97>~hòd^@^@^L954925517577 
>$obj->parsedDate(">=",1999,26,1)^@^Mjkey=00023172^B5^DõA^B^B^B^A^@aØ^^^DøÛ^UJø^Ge^@^@p<97>~hòd^@^@q<97>~hòd^@^@^L954925517584 
>$obj->parsedDate(">=",2001,21,1)^@^Mjkey=00002881^B5^DõA^B^B^B^C^@d^@Ø^^^DøÜ^UJø^Ge^@^@p<97>~hòd^@^@q<97>~hòd^@^@^O110978978737417 
>$obj->parsedDate(">=",2000,14,1)^@^Mjkey=00133570^B5^DõA^B^B^B^A^@aØ^^^DøÝ^UJø^Ge^@^@p<97>~hòd^@^@q<97>~hòd^@^@^L
>
>Looks like perl code to me, like maybe you're serving an un-dereferenced code 
>ref?
>
>On Wed, 8 Jun 2005, Andres Monroy-Hernandez wrote:
>
>  
>
>>Hello,
>>
>>I have two identical images (gifs). One is displayed correctly, the 
>>other one not. I hope you can provide any hints.
>>
>>In order to make sure both files are identical I compared their 
>>hexadecimal fingerprint by doing:
>>
>>% od good.gif > good.hex ; od bad.gif > bad.hex; diff bad.hex good.hex
>>
>>I checked the HTTP headers for both images and everything looks fine 
>>looks fine: Content-Type and Content-Length are the same.
>>The Etag is different, but I believe this is normal.
>>
>>The good one:
>>---------------------------
>>Response Headers - http://openurl.uquebec.ca:3210/sfxctrl/pix.1.0/good.gif
>>Date: Wed, 08 Jun 2005 17:02:08 GMT
>>Server: Apache/2.0.52 (Unix) mod_ssl/2.0.52 OpenSSL/0.9.7e DAV/2
>>Last-Modified: Sun, 13 Jun 2004 08:44:09 GMT
>>Etag: "1540fa-2a8-f9d9e840"
>>Accept-Ranges: bytes
>>Content-Length: 680
>>Keep-Alive: timeout=15, max=99
>>Connection: Keep-Alive
>>Content-Type: image/gif
>>
>>200 OK
>>---------------------------
>>
>>
>>The bad one:
>>---------------------------
>>http://openurl.uquebec.ca:3210/sfxctrl/pix.1.0/bad.gif
>>Date: Wed, 08 Jun 2005 17:00:48 GMT
>>Server: Apache/2.0.52 (Unix) mod_ssl/2.0.52 OpenSSL/0.9.7e DAV/2
>>Last-Modified: Sun, 13 Jun 2004 08:44:09 GMT
>>Etag: "154056-2a8-f9d9e840"
>>Accept-Ranges: bytes
>>Content-Length: 680
>>Keep-Alive: timeout=15, max=100
>>Connection: Keep-Alive
>>Content-Type: image/gif
>>
>>200 OK
>>
>>---------------------------
>>
>>
>>Thanks in advance.
>>
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>>
>
>  
>


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