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Posted to dev@tomcat.apache.org by bu...@apache.org on 2011/07/05 11:58:12 UTC

DO NOT REPLY [Bug 51475] New: GzipInterceptor#decompress is not completly implemented

https://issues.apache.org/bugzilla/show_bug.cgi?id=51475

             Bug #: 51475
           Summary: GzipInterceptor#decompress is not completly
                    implemented
           Product: Tomcat 6
           Version: 6.0.29
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Cluster
        AssignedTo: dev@tomcat.apache.org
        ReportedBy: cstoeber@amaris.de
    Classification: Unclassified


Created attachment 27254
  --> https://issues.apache.org/bugzilla/attachment.cgi?id=27254
Patch file für GzipInterceptor

While testing the GzipInterceptor I was wondering about the strange errors:
"Unable to decompress byte contents". At first I thougt, I was using the
interceptor in wrong order. But taking a look the source shows a TODO at method
decompress: "Fix to create an automatically growing buffer."

Because we have session properties which are compressed larger than 2048 bytes,
the interceptor didn't work, in our case.

I've created a patch. See my attachement.

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DO NOT REPLY [Bug 51475] GzipInterceptor#decompress is not completly implemented

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=51475

Christian Stöber <cs...@amaris.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |cstoeber@amaris.de

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DO NOT REPLY [Bug 51475] GzipInterceptor#decompress is not completly implemented

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=51475

--- Comment #2 from Christian Stöber <cs...@amaris.de> 2011-07-05 12:08:55 UTC ---
Created attachment 27256
  --> https://issues.apache.org/bugzilla/attachment.cgi?id=27256
Patch file for GzipInterceptor, TestGzipInterceptor and TribesTestSuite

Okay. I've checked out Tomcat 6.0.x from subversion in my ecplise and created a
new patch through eclipse. For me the patch looks better now.
I've also removed the test code from GzipInterceptor and have written a small
JUnit test case.

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DO NOT REPLY [Bug 51475] GzipInterceptor#decompress is not completly implemented

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=51475

--- Comment #3 from Mark Thomas <ma...@apache.org> 2011-07-05 16:48:34 UTC ---
Thanks for the updated patch. There are still some unnecessary changes in that
patch that distract from the changes that fix the problem. Also, new files need
to include a license header.

I have fixed 7.0.x based on your patch and the fix will be included in 7.0.18
onwards.

I have also proposed the fix for 6.0.x.

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DO NOT REPLY [Bug 51475] GzipInterceptor#decompress is not completly implemented

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=51475

--- Comment #6 from Christian Stöber <cs...@amaris.de> 2011-07-15 10:25:18 UTC ---
Ok, I'll will file a bug.

It is user configurable. Based on the compression option in
org.apache.coyote.http11.Http11Protocoll I called it compressionMinSize. ;)

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DO NOT REPLY [Bug 51475] GzipInterceptor#decompress is not completly implemented

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=51475

--- Comment #1 from Mark Thomas <ma...@apache.org> 2011-07-05 10:29:53 UTC ---
There are a number of issues with the patch as currently proposed.
- It uses tabs rather than spaces
- In includes whitespace changes that add noise
- Tests should be provided as JUnit tests in the separate tests directory in
the source tree

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DO NOT REPLY [Bug 51475] GzipInterceptor#decompress is not completly implemented

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=51475

--- Comment #5 from Mark Thomas <ma...@apache.org> 2011-07-15 10:16:52 UTC ---
New bug please. This should be user configurable. I'd suggest an attribute name
of minCompressionSize

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DO NOT REPLY [Bug 51475] GzipInterceptor#decompress is not completly implemented

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=51475

--- Comment #4 from Christian Stöber <cs...@amaris.de> 2011-07-15 09:55:47 UTC ---
Mark,

because it's not desirable and efficient to compress small packages, I've
modified the code that it compress only packages with a size greater than 2048
bytes.

Should I file a new bug? Or should I send you an new patch?

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DO NOT REPLY [Bug 51475] GzipInterceptor#decompress is not completly implemented

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=51475

Mark Thomas <ma...@apache.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

--- Comment #7 from Mark Thomas <ma...@apache.org> 2011-07-21 17:09:14 UTC ---
Fixed in 6.0.x and will be included in 6.0.33 onwards.

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