Option to disable automatic language detection for anonymous users
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	daniel
	Nov 15 2012, 7:49 PM

Description

ULS should have an option to disable language detection for anonymous users, in a way that

a) applies no language detection and instead uses the content language
c) initially does not set (and if necessary, deletes) any ULS cookies
b) but still shows the ULS widget to anonymous users
d) sets an ULS cookie if and when the user selected a language manually using the ULS widget (or by using the setlang=xx URL parameter).

This was suggested by Erik Möller as a solution to bug 41451, see comment 47 there. It allows ULS to be used an environment such as the Wikimedia cluster, where web caches are used, and these caches can be configured to not cache responses to queries the contain specific cookies.

This is a nicer, but less robust, approach than bug 42157.

Version: unspecified
Severity: normal
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=41451
https://bugzilla.wikimedia.org/show_bug.cgi?id=42157

Details

Reference: bz42159

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Status	Subtype	Assigned	Task
Resolved		None	T57683 Bugs caught by mw.loader.inspect() (tracking)
Resolved		Nikerabbit	T58292 Make ULS more lightweight
Open	Feature	None	T27815 Allow user to set the language preference when creating an account
Open		None	T161517 Allow anonymous users to change interface language on Commons with ULS
Open	Feature	None	T49802 [New UserLogin] Supersede language selection bar with UniversalLanguageSelector
Open		None	T5665 Auto-detect interface language for anonymous users on Wikimedia projects
Open		None	T58464 Allow anonymous users to change interface language on Wikimedia wikis with ULS
Duplicate		Nikerabbit	T15097 Deploy ULS/UniversalLanguageSelector to all Wikimedia wikis (tracking)
Resolved		None	T44186 Anonymous users can't pick language on wikidata.org
Resolved		Nikerabbit	T44159 Option to disable automatic language detection for anonymous users

Event Timeline

• bzimport raised the priority of this task from to Medium.Nov 22 2014, 1:08 AM

• bzimport added a project: UniversalLanguageSelector.

• bzimport set Reference to bz42159.

daniel created this task.Nov 15 2012, 7:49 PM

Wo probably need to send some additional cache control headers. So:

e) if the ULS cookie is received (or being set), send cache-control headers that cause squid not to cache the response.

One important part of the solution (and possibly the only thing needed) would be to set

$wgCacheVaryCookies[] = 'language';

no commitment in sprint 24

This was fixed in Ia8d21c394ff5efac0ce94664710c97dc3b74ec18

$wgULSAnonCanChangeLanguage and $wgULSLanguageDetection are available.

Closed older resolved bugs as verified.

Option to disable automatic language detection for anonymous usersClosed, ResolvedPublicActions

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Option to disable automatic language detection for anonymous users
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