Bug 51858

Summary: weird error for mod_rewrite with more then 3 parameteres
Product: Apache httpd-2 Reporter: qwartyr
Component: mod_rewriteAssignee: Apache HTTPD Bugs Mailing List <bugs>
Severity: normal Keywords: MassUpdate
Priority: P2    
Version: 2.2.20   
Target Milestone: ---   
Hardware: PC   
OS: Linux   

Description qwartyr 2011-09-21 06:34:38 UTC
I face some weird error for mod_rewrite 
The following code works
RewriteRule ^([A-Za-z_0-9.]+)/?$ /tools/investigate/i.php?query=$1 [L]
RewriteRule ^([A-Za-z_0-9.]+)/([A-Za-z_0-9.]+)/?$ /tools/$2/i.php?query=$1 [L]
RewriteRule ^([A-Za-z_0-9.]+)/([A-Za-z_0-9.]+)/([A-Za-z_0-9.]+)/([A-Za-z_0-9.]*)/?$ /tools/$2/i.php?query=$1&spider=$3&searchkeywords=$4 [L]

But if I add ? to the last string before last variable, apache returns 500 because of the mod_rewrite "infinite" loop
RewriteRule ^([A-Za-z_0-9.]+)/?$ /tools/investigate/i.php?query=$1 [L]
RewriteRule ^([A-Za-z_0-9.]+)/([A-Za-z_0-9.]+)/?$ /tools/$2/i.php?query=$1 [L]
RewriteRule ^([A-Za-z_0-9.]+)/([A-Za-z_0-9.]+)/([A-Za-z_0-9.]+)/?([A-Za-z_0-9.]*)/?$ /tools/$2/i.php?query=$1&spider=$3&searchkeywords=$4 [L]

If you don't see it, i'll make things more clear
/$1/$2/$3/$4 works, but /$1/$2/$3/?$4 not.

Is it a mod_rewrite bug.

Sorry for my English, it is my second language.
Thank you.
Comment 1 Eric Covener 2012-01-06 23:49:36 UTC
rewritelog would be needed to have any clue
Comment 2 William A. Rowe Jr. 2018-11-07 21:08:47 UTC
Please help us to refine our list of open and current defects; this is a mass update of old and inactive Bugzilla reports which reflect user error, already resolved defects, and still-existing defects in httpd.

As repeatedly announced, the Apache HTTP Server Project has discontinued all development and patch review of the 2.2.x series of releases. The final release 2.2.34 was published in July 2017, and no further evaluation of bug reports or security risks will be considered or published for 2.2.x releases. All reports older than 2.4.x have been updated to status RESOLVED/LATER; no further action is expected unless the report still applies to a current version of httpd.

If your report represented a question or confusion about how to use an httpd feature, an unexpected server behavior, problems building or installing httpd, or working with an external component (a third party module, browser etc.) we ask you to start by bringing your question to the User Support and Discussion mailing list, see [https://httpd.apache.org/lists.html#http-users] for details. Include a link to this Bugzilla report for completeness with your question.

If your report was clearly a defect in httpd or a feature request, we ask that you retest using a modern httpd release (2.4.33 or later) released in the past year. If it can be reproduced, please reopen this bug and change the Version field above to the httpd version you have reconfirmed with.

Your help in identifying defects or enhancements still applicable to the current httpd server software release is greatly appreciated.