https://bz.apache.org/bugzilla/show_bug.cgi?id=68970
Bug ID: 68970
Summary: mod_deflate no longer properly handles chunked
responses from CGI scripts
Product: Apache httpd-2
Version: 2.4.59
Hardware: Other
OS: Linux
Status: NEW
Severity: regression
Priority: P2
Component: mod_deflate
Assignee: bugs@httpd.apache.org
Reporter: allan.sch...@oracle.com
Target Milestone: ---
Created attachment 39691
--> https://bz.apache.org/bugzilla/attachment.cgi?id=39691&action=edit
Raw chunked output from our CGI process
Our CGI process handles SOAP requests. Based on the requests a multi-part MTOM
response using Transfer-encoding: chunked is generated and sent back to Apache
via stdout. On 2.4.58 the response is properly understood, de-chunked,
compressed and re-chunked so that the client receives a proper response. The
result is proper multi-part MTOM data of an XML document.
On 2.4.59 the response is not understood and not de-chunked. Rather the whole
chunked response from the CGI process is treated as binary data, compressed,
re-chunked so that the client receives the raw output of the CGI process. As
the resulting output is that raw, chunked output from the CGI process the
client sees unrecognizable garbage rather than an XML response.
On 2.4.59 if we disable mod_deflate then the result is returned to the client
as expected: an MTOM response with an XML document.
Enclosed are the following files to assist with this issue.
xmlout21642.xml contains the raw, chunked output of our CGI process (without
any headers).
I've also included three trace files collected using curl --trace for the three
test cases mentioned. You can see in those outputs the failure.
The test files contain passwords that are harmless as these are internal test
systems not accessible externally.
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