291641 - http://plone.org - high cpu usage (infinite recursion) on plone based sites when searching for strings with symbols

Status: RESOLVED FIXED

(Tech Evangelism Graveyard :: English US, defect)

Description

[JWW]

User-Agent:       Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.7.6) Gecko/20050317 Firefox/1.0.2
Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.7.6) Gecko/20050317 Firefox/1.0.2

Perform a search at http://plone.org with a leading space in the search term.
For example, search on " plone". The search results will reply with a URL such
as http://plone.org/newsitems/bookavailable/view?searchterm=%20plone

Clicking this link will hang FF on a Mac OS X box and a Linux Fedora box, but
the same URL works fine in Safari and Omniweb.

Reproducible: Always

Steps to Reproduce:
1. Perform a search at http://plone.org with a leading space in the search term
2. Click on the link in the search results page


Actual Results:  
FF hangs and I need to force quit on both Mac and Linux platforms

Expected Results:  
Rendered the link

I believe this is related to the fact that Plone tries to highlight your search
result and FF chokes on the leading space for some reason (but other browsers
don't -- that's why I think it's a FF bug).

Comment 1

[Steve England [:stevee]]

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8b2) Gecko/20050422
Firefox/1.0+
Following the repo steps I get the error msg:

"A script on this page may be busy, or it may have stopped responding. You can
stop the script now, or you can continue to see if the script will complete"

[ Stop Script ] [ Continue ]

Comment 2

[Frank Wein [:mcsmurf]]

Yeah probably this is a problem with a JavaScript that the server delivers.

Comment 3

[:Gavin Sharp [email: [e-mail]]]

Apparently the climb function (at http://plone.org/plone_javascripts.js) that
that page uses to walk the DOM and highlight terms from the query string is
infinitely recursive in this situation. I doubt this is a bug in the JavaScript
engine, though if anyone could take the time to make a testcase, it would be
appreciated. Also, contacting the page authors might be worthwhile.

Comment 4

[:Gavin Sharp [email: [e-mail]]]

*** Bug 298864 has been marked as a duplicate of this bug. ***

Comment 5

[:Gavin Sharp [email: [e-mail]]]

According to http://plone.org/collector/4220 , this is fixed. Please reopen if there are other issues.