From 6d8c172ee2e06b2f9e14f9189273403a990cdefa Mon Sep 17 00:00:00 2001
From: vdigital <vdigital@piwigo.org>
Date: Sat, 31 May 2008 11:43:13 +0000
Subject: Feature 0000080: Browser language detection (Use first active browser
 language as language for guest, generic members, registering process). If the
 language is not available PHPWG_DEFAULT_LANGUAGE is used as previously.

git-svn-id: http://piwigo.org/svn/trunk@2371 68402e56-0260-453c-a942-63ccdbb3a9ee
---
 include/config_default.inc.php |  4 ++++
 include/functions_user.inc.php | 28 +++++++++++++++++++++++++++-
 include/user.inc.php           |  5 ++++-
 3 files changed, 35 insertions(+), 2 deletions(-)

diff --git a/include/config_default.inc.php b/include/config_default.inc.php
index f5c9d64c8..e7a8c117d 100644
--- a/include/config_default.inc.php
+++ b/include/config_default.inc.php
@@ -473,6 +473,10 @@ $conf['guest_id'] = 2;
 // default_user_id : id of user used for default value
 $conf['default_user_id'] = $conf['guest_id'];
 
+// Registering process and guest/generic members get language from the browser
+// if language isn't available PHPWG_DEFAULT_LANGUAGE is used as previously
+$conf['browser_language'] = true;
+
 // webmaster_id : webmaster'id.
 $conf['webmaster_id'] = 1;
 
diff --git a/include/functions_user.inc.php b/include/functions_user.inc.php
index d2c9530e2..58b35e541 100644
--- a/include/functions_user.inc.php
+++ b/include/functions_user.inc.php
@@ -838,7 +838,32 @@ function get_default_template()
  */
 function get_default_language()
 {
-  return get_default_user_value('language', PHPWG_DEFAULT_LANGUAGE);
+  global $conf;
+  if (isset($conf['browser_language']) and $conf['browser_language'])
+  {
+    return get_browser_language();
+  }
+  else
+  {
+    return get_default_user_value('language', PHPWG_DEFAULT_LANGUAGE);
+  }
+}
+
+/*
+ * Returns the browser language value
+ *
+ */
+function get_browser_language()
+{
+  $browser_language = substr($_SERVER["HTTP_ACCEPT_LANGUAGE"], 0, 2);
+  foreach (get_languages() as $language_code => $language_name)
+  {
+    if (substr($language_code, 0, 2) == $browser_language)
+    {
+      return $language_code;
+    }
+  }
+  return PHPWG_DEFAULT_LANGUAGE;
 }
 
 /**
@@ -898,6 +923,7 @@ function create_user_infos($arg_id, $override_values = null)
       {
         $status = 'normal';
       }
+      $default_user['language'] = get_default_language();
 
       $insert = array_merge(
         $default_user,
diff --git a/include/user.inc.php b/include/user.inc.php
index b267790f8..1cb9ce7c0 100644
--- a/include/user.inc.php
+++ b/include/user.inc.php
@@ -69,6 +69,9 @@ if ($conf['apache_authentication'] and isset($_SERVER['REMOTE_USER']))
 $user = build_user( $user['id'],
           ( defined('IN_ADMIN') and IN_ADMIN ) ? false : true // use cache ?
          );
-
+if (is_a_guest() or is_generic())
+{
+  $user['language'] = get_default_language();
+}
 trigger_action('user_init', $user);
 ?>
-- 
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