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Defalte module

Posted on 2008-10-23
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Last Modified: 2008-12-15
I dont want xml files to gzipped and i have to block it using the content type i have used the following configuration.
LoadModule deflate_module /opt/www/eaws/apache/modules/mod_deflate.so

<Location />

AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE application/x-javascript
AddOutputFilterByType DEFLATE text/html

BrowserMatch \bMSIE\s6 no-gzip

SetOutputFilter DEFLATE
SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.(?:exe|t?gz|zip|bz2|sit|rar)$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.pdf$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.avi$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.mov$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.mp3$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.mp4$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.rm$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.swf$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.flv$ no-gzip dont-vary

</Location>
 
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Question by:kranthi_50404
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7 Comments
 

Author Comment

by:kranthi_50404
ID: 22791646
sorry my wording may get you confused..

My requirement is not to compress the xml files and i have used above mentioned code. I want to know whether there is any way we cannot compress a file using the content type rather than extensions for deflate filter.
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Expert Comment

by:giltjr
ID: 22795160
First, why in the world would you NOT want to compress xml documents.  They are the perfect choice for for compression.  

Anyway, you can do this by type, but you need to do it backwards.  That is you compress nothing by default and then use AddOoutputFilterByType for what you want to compress.  Here is an example:

http://forums.devshed.com/apache-development-15/gzip-deflate-based-on-content-type-browser-446938.html
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Author Comment

by:kranthi_50404
ID: 22797240
I have implmented the above mentioned code and i was not able to get the result ... but i have removed teh SetOutputFilter DEFLATE and the result was fine. just intersted in knowing the reason
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LVL 57

Expert Comment

by:giltjr
ID: 22797415
Setting SetOutputFilter DEFLATE will cause all output to be deflated by default.  When you remove it, then no output will be deflated, unless you specifically tell Apache to do it.

Can I ask why you don't want to compress XML?
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Author Comment

by:kranthi_50404
ID: 22799281
we had a problem with the flash player which makes use of the xml files .... it breaks since the xml file is been be zipped...
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Expert Comment

by:giltjr
ID: 22799519
Ah, O.K.  I did a quick search and found this:

http://mentalized.net/journal/2007/07/31/warning_gzip_content_flash_player_and_internet_explorer_6/

Which I am assuming is still a problem.  Apparently IE does not un-compress data prior to passing it to Flash (I would assume any plug-in for that matter).  I would further assume that Flash can't handle compressed data.
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Accepted Solution

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caterham_www earned 2000 total points
ID: 22800423
And

AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE application/x-javascript
AddOutputFilterByType DEFLATE text/html

only does not fit your requirement? That should set the filter DEFLATE to the specified types only. A xml file should have text/xml or application/xml or something other but not text/html or text/plain, so output filtering should not occur.
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