https://bugzilla.wikimedia.org/show_bug.cgi?id=42432
Web browser: ---
Bug #: 42432
Summary: Extension:ReplaceText comment causes MWException in RC
and page history
Product: MediaWiki
Version: 1.20
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: Unprioritized
Component: History/Diffs
AssignedTo: [email protected]
ReportedBy: [email protected]
Classification: Unclassified
Mobile Platform: ---
MW 1.20, Extension:ReplaceText v0.9.5, amazon EC2, linux
Tried replacing text with another, now RecentChanges and a page history cause
MWException.
Backtrace:
[409d688c] /wiki/Special:RecentChanges Exception from line 594 of
/opt/var/www/htdocs/nethackwiki.com/mediawiki-1.20.0/includes/Message.php:
Invalid message parameter
#0
/opt/var/www/htdocs/nethackwiki.com/mediawiki-1.20.0/includes/Message.php(568):
Message->extractParam(Array)
#1
/opt/var/www/htdocs/nethackwiki.com/mediawiki-1.20.0/includes/Message.php(424):
Message->replaceParameters('($1)', 'before')
#2
/opt/var/www/htdocs/nethackwiki.com/mediawiki-1.20.0/includes/Message.php(507):
Message->toString()
#3
/opt/var/www/htdocs/nethackwiki.com/mediawiki-1.20.0/includes/Linker.php(1499):
Message->escaped()
#4
/opt/var/www/htdocs/nethackwiki.com/mediawiki-1.20.0/includes/ChangesList.php(435):
Linker::commentBlock('Text replace - ...', Object(Title))
#5
/opt/var/www/htdocs/nethackwiki.com/mediawiki-1.20.0/includes/ChangesList.php(642):
ChangesList->insertComment(Object(RecentChange))
#6
/opt/var/www/htdocs/nethackwiki.com/mediawiki-1.20.0/includes/specials/SpecialRecentchanges.php(528):
OldChangesList->recentChangesLine(Object(RecentChange), false, 2)
#7
/opt/var/www/htdocs/nethackwiki.com/mediawiki-1.20.0/includes/specials/SpecialRecentchanges.php(179):
SpecialRecentChanges->webOutput(Object(ResultWrapper), Object(FormOptions))
#8
/opt/var/www/htdocs/nethackwiki.com/mediawiki-1.20.0/includes/SpecialPage.php(611):
SpecialRecentChanges->execute(NULL)
#9
/opt/var/www/htdocs/nethackwiki.com/mediawiki-1.20.0/includes/SpecialPageFactory.php(494):
SpecialPage->run(NULL)
#10
/opt/var/www/htdocs/nethackwiki.com/mediawiki-1.20.0/includes/Wiki.php(290):
SpecialPageFactory::executePath(Object(Title), Object(RequestContext))
#11
/opt/var/www/htdocs/nethackwiki.com/mediawiki-1.20.0/includes/Wiki.php(536):
MediaWiki->performRequest()
#12
/opt/var/www/htdocs/nethackwiki.com/mediawiki-1.20.0/includes/Wiki.php(446):
MediaWiki->main()
#13 /opt/var/www/htdocs/nethackwiki.com/mediawiki-1.20.0/index.php(59):
MediaWiki->run()
#14 {main}
For some reason, extractParam() function in include/Message.php gets an empty
array as a $param. I did a quick'n'dirty hack to handle that case.
What I did:
1) Entered the following as "original text":
\[\[[sS]pellbook of (dig|magic missile|fireball|cone of cold|sleep|finger of
death|light|detect monsters|healing|knock|force bolt|confuse monster|cure
blindness|drain life|slow monster|wizard lock|create monster|detect food|cause
fear|clairvoyance|cure sickness|charm monster|haste self|detect
unseen|levitation|extra healing|restore ability|invisibility|detect
treasure|remove curse|magic mapping|identify|turn undead|polymorph|teleport
away|create familiar|cancellation|protection|jumping|stone to flesh|flame
sphere|freeze sphere|blank paper)\|(dig|magic missile|fireball|cone of
cold|sleep|finger of death|light|detect monsters|healing|knock|force
bolt|confuse monster|cure blindness|drain life|slow monster|wizard lock|create
monster|detect food|cause fear|clairvoyance|cure sickness|charm monster|haste
self|detect unseen|levitation|extra healing|restore ability|invisibility|detect
treasure|remove curse|magic mapping|identify|turn undead|polymorph|teleport
away|create familiar|cancellation|protection|jumping|stone to flesh|flame
sphere|freeze sphere|blank paper)\]\]
2) Entered the following as "replacement text":
{{spell of|$1}}
3) Ticked "use regular expressions"
4) Selected several namespaces (Main, NetHackWiki, File, Source, ...)
5) Clicked continue.
6) Ignored the warning that the replacement string already exists.
6) Of all the articles that matched, only selected the first one
(http://nethackwiki.com/wiki/Aligned_priest)
7) "Replace"
Afterwards, RC and the history page for the Aligned_priest -article throw the
MWException.
Disabling any and all extensions doesn't help.
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