mirror of
https://github.com/wavelog/wavelog.git
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425 lines
9.5 KiB
PHP
425 lines
9.5 KiB
PHP
<?php
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defined('BASEPATH') OR exit('No direct script access allowed');
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/*
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* Include php-gettext library provided by launchpad
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* See: https://launchpad.net/php-gettext/
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*/
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require_once __DIR__.'/vendor/php-gettext/gettext.php';
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/**
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* Gettext Class
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*
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* This class is called before CodeIgniter loads so it enables the user of
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* php_gettext on your application
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*
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* @package CodeIgniter
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* @category None
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* @author Kader Bouyakoub <bkader@mail.com>
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* @link https://github.com/bkader
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* @link https://twitter.com/KaderBouyakoub
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*/
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class Gettext
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{
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/**
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* Configuration array
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* @var array
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*/
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private $config = array(
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'enabled' => TRUE,
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'default' => NULL,
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'domain' => 'messages',
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'languages' => array('english'),
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'cookie' => 'language',
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'session' => NULL,
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);
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/**
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* List of all possible languages details.
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* @var array
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*/
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private $languages;
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/**
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* List of available languages
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* @var array
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*/
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private $site_languages;
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/**
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* Default language details
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* @var array
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*/
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private $default;
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/**
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* Client language details
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* @var array
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*/
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private $client;
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/**
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* Current language details
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* @var array
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*/
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private $current;
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/**
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* Constructor
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*/
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public function __construct()
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{
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global $CFG;
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// Load configuration file
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$CFG->load('gettext', TRUE, TRUE);
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if ( ! empty($config = $CFG->item('gettext')))
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{
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foreach ($config as $key => $val)
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{
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$this->config[str_replace('gettext_', '', $key)] = $config[$key];
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}
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}
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// All languages details.
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$languages = $this->_get_languages();
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// Prepare our available languages array & add config item if not set.
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$site_languages = $this->_get_site_languages();
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if ( ! $CFG->item('languages')) {
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$CFG->set_item('languages', $site_languages);
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}
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// We abord the class if:
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// 1. Gettext is disabled
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// 2. There is only a single language available
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// 3. No cookie name or no session name are provided
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if ( ! $this->config['enabled']
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OR count($this->site_languages) <= 1
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OR (empty($this->config['cookie'])
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&& empty($this->config['session'])))
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{
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return;
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}
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if ( ! empty($this->config['cookie']))
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{
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$this->config['cookie'] = config_item('cookie_prefix').str_replace(config_item('cookie_prefix'), '', $this->config['cookie']);
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}
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// Set site default language and add the config item.
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$default = $this->_get_default_language();
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if ( ! $CFG->item('default_language')) {
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$CFG->set_item('default_language', $default);
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}
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// Set client language
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$client = $this->_get_client_language();
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if ( ! $CFG->item('client_language')) {
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$CFG->set_item('client_language', $client);
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}
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// Site site current language and config item if not set.
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$current = $this->_get_current_language();
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if ( ! $CFG->item('current_language')) {
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$CFG->set_item('current_language', $current);
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}
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// Make sure gettext domain is never empty
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empty($this->config['domain']) && $this->config['domain'] = 'messages';
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// Start using our gettext
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putenv('LANG='.$current['gettext']);
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T_setlocale(LC_MESSAGES, $current['gettext']);
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T_bindtextdomain($this->config['domain'], APPPATH.'locale');
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T_bind_textdomain_codeset($this->config['domain'], 'UTF-8');
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T_textdomain($this->config['domain']);
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// $this->set_textdomain($this->config['domain']);
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// Change language in APPPATH/config/config.php
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$CFG->set_item('language', $current['folder']);
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// Includes our functions
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include __DIR__.'/vendor/functions.php';
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}
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// ------------------------------------------------------------------------
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/**
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* Dummy methods only so the hooks starts.
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*
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* @access public
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* @param none
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* @return void
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*/
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public function initialize() {}
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// ------------------------------------------------------------------------
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/**
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* Returns a config item
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* @access public
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* @param string $item the item to return
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* @return mixed
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*/
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public function config($item = NULL)
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{
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if ($item && isset($this->config[$item])) {
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return $this->config[$item];
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}
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return $this->config;
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}
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// ------------------------------------------------------------------------
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// !SETTERS
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// ------------------------------------------------------------------------
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/**
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* Returns the list of all languages details
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* @access protected
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* @param none
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* @return array
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*/
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private function _get_languages()
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{
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// Are they already cached? return them.
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if ( ! empty($this->languages))
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{
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return $this->languages;
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}
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$this->languages = $this->config['languages'];
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return $this->languages;
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}
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/**
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* Returns a detailed list of enabled languages
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* @access private
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* @param none
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* @return array
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*/
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private function _get_site_languages()
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{
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// Are they cached? Return theme.
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if ( ! empty($this->site_languages))
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{
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return $this->site_languages;
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}
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// Cache them before returning.
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$this->site_languages = $this->config['languages'];
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return $this->site_languages;
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}
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/**
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* Set default language
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* @access private
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* @param none
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* @return array
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*/
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private function _get_default_language()
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{
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// Is the language already cached? Return it.
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if ( ! empty($this->default))
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{
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return $this->default;
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}
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// Get the language from the config file.
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global $CFG;
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$default = $CFG->item('language');
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// Use default language set in APPPATH/config/config.php
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empty($this->config['default']) && $this->config['default'] = $default;
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// Make sure the selected default language is available
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if ( ! isset($this->site_languages[$this->config['default']]))
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{
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$this->config['default'] = $default;
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}
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$this->default = $this->_get_site_languages()[$this->config['default']];
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return $this->default;
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}
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/**
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* Sets client language
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* @access private
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* @param none
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* @return array
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*/
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private function _get_client_language()
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{
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if(isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
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$code = substr($_SERVER['HTTP_ACCEPT_LANGUAGE'], 0, 2);
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$lang = $this->find_by('code', $code);
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} else {
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$code = 'en';
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$lang = $this->find_by('code', $code);
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}
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// $lang OR $lang = $this->default;
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return $lang;
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}
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/**
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* Sets current language
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* @access private
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* @param none
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* @return array
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*/
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private function _get_current_language()
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{
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global $IN;
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$folder = NULL;
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// Check if any cookie is set
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if ($cookie = $IN->cookie(config_item('cookie_prefix').$this->config['cookie'], TRUE))
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{
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$folder = $cookie;
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}
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// Check session in case we are using it
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elseif (isset($_SESSION[$this->config['session']]))
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{
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$folder = $_SESSION[$this->config['session']];
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}
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// If neither cookie nor session are found, we use default one
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else
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{
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$folder = $this->_get_client_language()['folder'];
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}
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// Prepare our current language
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$current = $this->default;
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// We make sure the language is available
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if (isset($this->_get_site_languages()[$folder]))
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{
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$current = $this->languages[$folder];
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}
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// Use cookie if enabled
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if ( ! empty($this->config['cookie']))
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{
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$IN->set_cookie($this->config['cookie'], $current['folder'], 2678400);
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}
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// In case we use session
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elseif ( ! empty($this->config['session']))
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{
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$_SESSION[$this->config['session']] = $current['folder'];
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}
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return $current;
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}
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// ------------------------------------------------------------------------
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// !FINDERS
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// ------------------------------------------------------------------------
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/**
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* Search through languages array
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* @access public
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* @param string $field field to compare to
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* @param string $match value to compare field to
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* @return array
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*/
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public function find_by($field = 'folder', $match = 'english')
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{
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foreach($this->languages as $lang)
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{
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if (isset($lang[$field]) && $lang[$field] === $match)
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{
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return $lang;
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}
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}
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return NULL;
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}
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/**
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* Unlike the method above, this one searches inside all languages
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* even unavailable ones.
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* @access public
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* @param string $field field to compare to
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* @param string $match value to compare field to
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* @return array
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*/
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public function get_by($field = 'folder', $match = 'english')
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{
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// If PHP>=5.5.0
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if (version_compare(PHP_VERSION, '5.5.0') >= 0)
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{
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$languages = $this->_get_languages();
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$values = array_values($languages);
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$key = array_search($match, array_column($languages, $field));
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if ($key)
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{
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return $values[$key];
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}
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}
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foreach($this->_get_languages() as $lang)
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{
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if (isset($lang[$field]) && $lang[$field] === $match)
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{
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return $lang;
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}
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}
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return NULL;
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}
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// ------------------------------------------------------------------------
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/**
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* Change current language
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* @access public
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* @param string $code language code to use
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* @return boolean
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*/
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public function change($code = 'en')
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{
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// We make sure the language is not the same as the current
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if ($code === $this->current['code'])
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{
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return TRUE;
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}
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// We make sure the language exists
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if ($lang = $this->find_by('code', $code))
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{
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global $IN;
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// If the use of cookies is ON
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if ($this->config['cookie'] !== NULL)
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{
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$IN->set_cookie($this->config['cookie'], $lang['folder'], 2678400);
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}
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// In case COOKIE are off but SESSION is on
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elseif ($this->config['session'] !== NULL)
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{
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$_SESSION[$this->config['session']] = $lang['folder'];
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}
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// Change now current language
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$this->current = $lang;
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return TRUE;
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}
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return FALSE;
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}
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}
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/* End of file Gettext.php */
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/* Location: ./application/hooks/gettext/Gettext.php */
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