Language setting fixes:

- switch 'en_US' to 'en', fixes the "admin panel switches to Arabic" bug
- tweak setting descriptions to clarify that most of the time we'll be using browser language
- add a backend switch to disable language detection (should this be exposed to ui?)

2 files changed, 9 insertions, 6 deletions

diff --git a/lib/default.php b/lib/default.php
index 7b50242ae..b7216045c 100644
--- a/lib/default.php
+++ b/lib/default.php
@@ -40,7 +40,8 @@ $default =
               'logdebug' => false,
               'fancy' => false,
               'locale_path' => INSTALLDIR.'/locale',
-              'language' => 'en_US',
+              'language' => 'en',
+              'langdetect' => true,
               'languages' => get_all_languages(),
               'email' =>
               array_key_exists('SERVER_ADMIN', $_SERVER) ? $_SERVER['SERVER_ADMIN'] : null,
diff --git a/lib/util.php b/lib/util.php
index 46be920fa..da2799d4f 100644
--- a/lib/util.php
+++ b/lib/util.php
@@ -105,11 +105,13 @@ function common_language()
 
     // Otherwise, find the best match for the languages requested by the
     // user's browser...
-    $httplang = isset($_SERVER['HTTP_ACCEPT_LANGUAGE']) ? $_SERVER['HTTP_ACCEPT_LANGUAGE'] : null;
-    if (!empty($httplang)) {
-        $language = client_prefered_language($httplang);
-        if ($language)
-          return $language;
+    if (common_config('site', 'langdetect')) {
+        $httplang = isset($_SERVER['HTTP_ACCEPT_LANGUAGE']) ? $_SERVER['HTTP_ACCEPT_LANGUAGE'] : null;
+        if (!empty($httplang)) {
+            $language = client_prefered_language($httplang);
+            if ($language)
+              return $language;
+        }
     }
 
     // Finally, if none of the above worked, use the site's default...