https://issues.apache.org/bugzilla/show_bug.cgi?id=56176
Bug ID: 56176
Summary: mod_substitute truncates the response body if the
"Line is too long"
Product: Apache httpd-2
Version: 2.4.7
Hardware: PC
OS: Mac OS X 10.4
Status: NEW
Severity: normal
Priority: P2
Component: mod_substitute
Assignee: [email protected]
Reporter: [email protected]
The following fix added in 2.3.15
"mod_substitute: To prevent overboarding memory usage, limit line length to
1MB. [Stefan Fritsch]"
causes any line in the response body that is over 1MB to be omitted from the
response, delivering a partial response, and the following entry is logged
"[Fri Feb 21 16:23:46.440472 2014] [substitute:error] [pid 3912:tid 2600]
[client 192.168.0.5:62707] AH01328: Line too long, URI
/secure/foo/bar/Main.aspx, referer:
https://myhost/secure/foo/bar/Main.aspx?evt=2001&src=Main.aspx.2001";
Especially considering that Apache still responds with an HTTP 200 status code,
I would think the proper response would be for mod_substitute to just return
the line without parsing it, because returning a partial response just ends up
corrupting the response.
I can see the argument that you may not want to return a line if substitutions
fail, but I don't think that should be the default behavior or you should at
least provide the ability to define the default behavior.
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