[tor-commits] [tor-browser] 35/70: Bug 40309: Avoid using regional OS locales

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pierov pushed a commit to branch tor-browser-102.2.0esr-12.0-1
in repository tor-browser.

commit 600ef39e0242c6fb395e67f4d1f09b8221b7b8cb
Author: Pier Angelo Vendrame <pierov at torproject.org>
AuthorDate: Wed May 18 19:22:37 2022 +0200

    Bug 40309: Avoid using regional OS locales
    
    Avoid regional OS locales if the pref
    `intl.regional_prefs.use_os_locales` is false but RFP is enabled.
---
 intl/locale/LocaleService.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/intl/locale/LocaleService.cpp b/intl/locale/LocaleService.cpp
index 4ff18a1a90c4a..542eed3e37fdb 100644
--- a/intl/locale/LocaleService.cpp
+++ b/intl/locale/LocaleService.cpp
@@ -14,6 +14,7 @@
 #include "mozilla/intl/AppDateTimeFormat.h"
 #include "mozilla/intl/Locale.h"
 #include "mozilla/intl/OSPreferences.h"
+#include "nsContentUtils.h"
 #include "nsDirectoryService.h"
 #include "nsDirectoryServiceDefs.h"
 #include "nsIObserverService.h"
@@ -479,6 +480,11 @@ LocaleService::GetAppLocaleAsBCP47(nsACString& aRetVal) {
 
 NS_IMETHODIMP
 LocaleService::GetRegionalPrefsLocales(nsTArray<nsCString>& aRetVal) {
+  if (nsContentUtils::ShouldResistFingerprinting()) {
+    GetAppLocalesAsBCP47(aRetVal);
+    return NS_OK;
+  }
+
   bool useOSLocales =
       Preferences::GetBool("intl.regional_prefs.use_os_locales", false);
 

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