Adding validation to the user language

main/auth/profile.php

@@ -649,6 +649,12 @@ if ($form->validate()) {
 		$user_data['openid'] = 'http://'.$my_user_openid;
 	}
 	$extras = array();
+	
+	//Checking the user language
+	$languages = api_get_languages();   
+    if (!in_array($user_data['language'], $languages['folder'])) {
+        $user_data['language'] = api_get_setting('platformLanguage');
+    }
     
 	//Only update values that are request by the "profile" setting
 	$profile_list = api_get_setting('profile');
@@ -664,8 +670,9 @@ if ($form->validate()) {
     	       $available_values_to_modify[] = $key;
     	    } 
 	    }
-	}	
+	}
 	
+
 	// build SQL query
 	$sql = "UPDATE $table_user SET";
 	unset($user_data['api_key_generate']);

main/inc/lib/usermanager.lib.php

@@ -81,10 +81,11 @@ class UserManager
 		// database table definition
 		$table_user = Database::get_main_table(TABLE_MAIN_USER);
 
-		// default langauge
-		if ($language == '') {
-			$language = api_get_setting('platformLanguage');
-		}
+    	//Checking the user language
+        $languages = api_get_languages();   
+        if (!in_array($language, $languages['folder'])) {
+            $language = api_get_setting('platformLanguage');
+        }
 
 		if ($_user['user_id']) {
 			$creator_id = intval($_user['user_id']);
@@ -341,6 +342,14 @@ class UserManager
 		if ($user_id != strval(intval($user_id))) return false;
 		if ($user_id === false) return false;
 		$table_user = Database :: get_main_table(TABLE_MAIN_USER);
+		
+		//Checking the user language
+        $languages = api_get_languages();   
+        if (!in_array($language, $languages['folder'])) {
+            $language = api_get_setting('platformLanguage');
+        }
+		
+        
 		$sql = "UPDATE $table_user SET
 				lastname='".Database::escape_string($lastname)."',
 				firstname='".Database::escape_string($firstname)."',