From b69c6650f000f9e9f2f8cc198c5e9fded405229c Mon Sep 17 00:00:00 2001
From: Sebastian Korotkiewicz <mod@itunix.eu>
Date: Sun, 26 Oct 2014 16:59:35 +0100
Subject: [PATCH] Support for dynamically language setting

---
 htdocs/application/config/config.php       |   2 +-
 htdocs/application/config/hooks.php        |   8 +-
 htdocs/application/config/language.php     | 118 +++++++++++++++++++++
 htdocs/application/hooks/pick_language.php |  76 +++++++++++++
 4 files changed, 201 insertions(+), 3 deletions(-)
 create mode 100644 htdocs/application/config/language.php
 create mode 100644 htdocs/application/hooks/pick_language.php

diff --git a/htdocs/application/config/config.php b/htdocs/application/config/config.php
index 9a1a123..92208d6 100644
--- a/htdocs/application/config/config.php
+++ b/htdocs/application/config/config.php
@@ -101,7 +101,7 @@ $config['charset'] = 'UTF-8';
 | setting this variable to TRUE (boolean).  See the user guide for details.
 |
 */
-$config['enable_hooks'] = FALSE;
+$config['enable_hooks'] = TRUE;
 
 
 /*
diff --git a/htdocs/application/config/hooks.php b/htdocs/application/config/hooks.php
index a4ad2be..6e41765 100644
--- a/htdocs/application/config/hooks.php
+++ b/htdocs/application/config/hooks.php
@@ -10,7 +10,11 @@
 |
 */
 
-
+$hook['pre_controller'][] = array(
+  'function' => 'pick_language',
+  'filename' => 'pick_language.php',
+  'filepath' => 'hooks'
+);
 
 /* End of file hooks.php */
-/* Location: ./application/config/hooks.php */
\ No newline at end of file
+/* Location: ./application/config/hooks.php */
diff --git a/htdocs/application/config/language.php b/htdocs/application/config/language.php
new file mode 100644
index 0000000..99e20b0
--- /dev/null
+++ b/htdocs/application/config/language.php
@@ -0,0 +1,118 @@
+<?php  if (!defined('BASEPATH')) exit('No direct script access allowed');
+
+/**
+ * Language
+ *
+ * Which language to use
+ * Translate Stikked to your own language, see htdocs/application/language files
+ * Currently: english, german, swissgerman, spanish, norwegian, portuguese, turkish, french, japanese, polish, russian, chinese-simplified, chinese-traditional
+ *
+*/
+
+$config['supported_languages'] = array(
+    'en' => array(
+        'name'        => 'English',
+        'folder'      => 'english',
+        'direction'   => 'ltr',
+        'codes'       => array('en', 'english', 'en_US'),
+        'ckeditor'    => NULL
+    ),
+    'de' => array(
+        'name'        => 'Deutsch',
+        'folder'      => 'german',
+        'direction'   => 'ltr',
+        'codes'       => array('de', 'german', 'de_DE'),
+        'ckeditor'    => NULL
+    ),
+    'sw' => array(
+        'name'        => 'Schweizerdeutsch',
+        'folder'      => 'swissgerman',
+        'direction'   => 'ltr',
+        'codes'       => array('sw', 'swissgerman', 'sw_SW'),
+        'ckeditor'    => NULL
+    ),
+    'es' => array(
+        'name'        => 'Espa&ntilde;ol',
+        'folder'      => 'spanish',
+        'direction'   => 'ltr',
+        'codes'       => array('esp', 'spanish', 'es_ES'),
+        'ckeditor'    => NULL
+    ),
+    'no' => array(
+        'name'	      => 'norsk',
+        'folder'      => 'norwegian',
+        'direction'   => 'ltr',
+        'codes'	      => array('no', 'norwegian', 'no_NO'),
+        'ckeditor'    => NULL
+    ),
+    'pt' => array(
+        'name'        => 'Portugu&ecirc;s de Portugal',
+        'folder'      => 'portuguese',
+        'direction'   => 'ltr',
+        'codes'       => array('ptb', 'portuguese-portugal', 'pt_PT'),
+        'ckeditor'    => 'pt-pt'
+    ),
+    'tr' => array(
+        'name'        => 'Türkçe',
+        'folder'      => 'turkish',
+        'direction'   => 'ltr',
+        'codes'       => array('tr', 'turkish', 'tr_TR'),
+        'ckeditor'    => NULL
+    ),
+    'fr' => array(
+        'name'        => 'Français',
+        'folder'      => 'french',
+        'direction'   => 'ltr',
+        'codes'       => array('fra', 'french', 'fr_FR'),
+        'ckeditor'    => NULL
+    ),
+    'jp' => array(
+        'name'        => '日本語',
+        'folder'      => 'japanese',
+        'direction'   => 'ltr',
+        'codes'       => array('jp', 'japanese', 'jp_JP'),
+        'ckeditor'    => NULL
+    ),
+    'pl' => array(
+        'name'        => 'Polski',
+        'folder'      => 'polish',
+        'direction'   => 'ltr',
+        'codes'       => array('plk', 'polish', 'pl_PL'),
+        'ckeditor'    => NULL
+    ),
+    'ru' => array(
+        'name'        => 'Русский',
+        'folder'      => 'russian',
+        'direction'   => 'ltr',
+        'codes'       => array('rus', 'russian', 'ru_RU'),
+        'ckeditor'    => NULL
+    ),
+    'cn' => array(
+        'name'        => '繁體中文',
+        'folder'      => 'chinese-simplified',
+        'direction'   => 'ltr',
+        'codes'       => array('cht', 'chinese-simplified', 'zh_CN'),
+        'ckeditor'    => NULL
+    ),
+    'zh' => array(
+        'name'        => '繁體中文',
+        'folder'      => 'chinese-traditional',
+        'direction'   => 'ltr',
+        'codes'       => array('cht', 'chinese-traditional', 'zh_TW'),
+        'ckeditor'    => NULL
+    ),
+);
+
+/*
+ * Default Language
+ *
+ * If no language is specified, which one to use?
+ * Currently: english (en) | german (de)    | swissgerman (sw) 
+ *            spanish (es) | norwegian (no) | portuguese (pt) 
+ *            turkish (tr) | french (fr)    | japanese (jp) 
+ *            polish (pl)  | russian (ru) 
+ *            chinese-simplified (cn) |  chinese-traditional (zh)
+ *
+*/
+$config['default_language'] = 'en';
+
diff --git a/htdocs/application/hooks/pick_language.php b/htdocs/application/hooks/pick_language.php
new file mode 100644
index 0000000..3b6b99b
--- /dev/null
+++ b/htdocs/application/hooks/pick_language.php
@@ -0,0 +1,76 @@
+<?php defined('BASEPATH') OR exit('No direct script access allowed.');
+/**
+ * Determines the language to use.
+ *
+ * This is called from the Codeigniter hook system.
+ * The hook is defined in application/config/hooks.php
+ */
+function pick_language() {
+
+    require APPPATH . '/config/language.php';
+
+    // Re-populate $_GET
+    parse_str($_SERVER['QUERY_STRING'], $_GET);
+
+    // If we've been redirected from HTTP to HTTPS on admin, ?session= will be set to maintain language
+    if ($_SERVER['SERVER_PORT'] == 443 and !empty($_GET['session'])) {
+        session_start($_GET['session']);
+    } else {
+        session_start();
+    }
+
+    // Lang set in URL via ?lang=something
+    if (!empty($_GET['lang'])) {
+        // Turn en-gb into en
+        $lang = strtolower(substr($_GET['lang'], 0, 2));
+    }
+    // Lang has already been set and is stored in a session
+    elseif (!empty($_SESSION['lang_code'])) {
+        $lang = $_SESSION['lang_code'];
+    }
+    // Lang has is picked by a user.
+    elseif (!empty($_COOKIE['lang_code'])) {
+        $lang = strtolower($_COOKIE['lang_code']);
+    }
+
+    // Still no Lang. Lets try some browser detection then
+    elseif (!empty($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
+        // explode languages into array
+        $accept_langs = explode(',', $_SERVER['HTTP_ACCEPT_LANGUAGE']);
+        $supported_langs = array_keys($config['supported_languages']);
+        // Check them all, until we find a match
+        foreach ($accept_langs as $accept_lang) {
+            if (strpos($accept_lang, '-') === 2) {
+                // Turn pt-br into br
+                $lang = strtolower(substr($accept_lang, 3, 2));
+                // Check its in the array. If so, break the loop, we have one!
+                if (in_array($lang, $supported_langs)) {
+                    break;
+                }
+            }
+            // Turn en-gb into en
+            $lang = strtolower(substr($accept_lang, 0, 2));
+            // Check its in the array. If so, break the loop, we have one!
+            if (in_array($lang, $supported_langs)) {
+                break;
+            }
+        }
+    }
+
+    // If no language has been worked out - or it is not supported - use the default
+    if (empty($lang) OR !array_key_exists($lang, $config['supported_languages'])) {
+        $lang = $config['default_language'];
+    }
+
+    // Whatever we decided the lang was, save it for next time to avoid working it out again
+    $_SESSION['lang_code'] = $lang;
+
+    // Load CI config class
+    $CI_config = & load_class('Config');
+
+    // Set the language config. Selects the folder name from its key of 'en'
+    $CI_config->set_item('language', $config['supported_languages'][$lang]['folder']);
+
+    // Sets a constant to use throughout ALL of CI.
+    define('AUTO_LANGUAGE', $lang);
+}