WenPai-org/wp-chinese-converter
WenPai-org/wp-chinese-converter
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wp-chinese-converter/wpchinese-switcher.php
feng 917b4e8488 初始化 I18N 版本 
增加可翻译版本
2021-10-18 15:59:25 +08:00

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<?php
/*
* Plugin Name: WP Chinese Switcher
* Description: Adds the language conversion function between Chinese Simplified and Chinese Traditional to your WP Website.
* Author: WenPai.org
* Author URI: https://wenpai.org
* Text Domain: wpchinese-switcher
* Domain Path: /languages
* Version: 1.0.0
* License: GPLv3 or later
* License URI: http://www.gnu.org/licenses/gpl-3.0.html
*/
/*
Copyright 2012-2021 WenPai (http://wenpai.org)
Developer: WenPai
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* WP Chinese Switcher Plugin main file
*
* 为Wordpress增加中文繁简转换功能. 转换过程在服务器端完成. 使用的繁简字符映射表来源于Mediawiki.
* 本插件比较耗费资源. 因为对页面内容繁简转换时载入了一个几百KB的转换表(ZhConversion.php), 编译后占用内存超过1.5MB
* 如果可能, 建议安装xcache/ eAccelerator之类PHP缓存扩展. 可以有效提高速度并降低CPU使用,在生产环境下测试效果非常显着.
*
* @package WPCS
* @version see wpcs_VERSION constant below
* @TODO 用OO方式重写全部代码, 计划1.2版本实现.
* @link http://wordpress.org/plugins/wpchinese-switcher Plugin Page on wordpress.org, including guides and docs.
*
*/
//define('wpcs_DEBUG', true); $wpcs_deubg_data = array(); //uncomment this line to enable debug
define('wpcs_DIR_URL', WP_PLUGIN_URL . '/' . str_replace(basename(__FILE__), "", plugin_basename(__FILE__)));
define('wpcs_VERSION', '1.0');
$wpcs_options = get_option('wpcs_options');
// /**********************
//初始化所有全局变量.其实不初始化也没关系,主要是防止某些古董php版本register_globals打开可能造成意想不到问题.
$wpcs_admin = false;
$wpcs_noconversion_url = false;
$wpcs_redirect_to = false;
$wpcs_direct_conversion_flag = false;
$wpcs_langs_urls = array();
$wpcs_target_lang = false;
// ***************************/
//您可以更改提示文本,如"简体中文","繁体中文".但是不要改动其它.
//不要改键值的语言代码zh-xx, 本插件一些地方使用了硬编码的语言代码.
$wpcs_langs = array(
'zh-cn' => array('zhconversion_cn', 'cntip', '简体中文', 'zh-CN'),
'zh-tw' => array('zhconversion_tw', 'twtip', '繁体中文', 'zh-TW'),
/*
'zh-hans' => array('zhconversion_hans', 'hanstip', '简体中文','zh-Hans'),
'zh-hant' => array('zhconversion_hant', 'hanttip', '繁体中文','zh-Hant'),
'zh-hk' => array('zhconversion_hk', 'hktip', '港澳繁体','zh-HK'),
'zh-mo' => array('zhconversion_hk', 'motip', '澳门繁体','zh-MO'),
'zh-sg' => array('zhconversion_sg', 'sgtip', '马新简体','zh-SG'),
'zh-my' => array('zhconversion_sg', 'mytip', '马来西亚简体','zh-MY'),
*/
);
//容错处理.
if ($wpcs_options != false && is_array($wpcs_options) && is_array($wpcs_options['wpcs_used_langs'])) {
add_action('widgets_init', function () {
return register_widget('wpcs_Widget');
}, 1);
add_filter('query_vars', 'wpcs_insert_query_vars');//修改query_vars钩子,增加一个'variant'公共变量.
add_action('init', 'wpcs_init');//插件初始化
if (
WP_DEBUG ||
(defined('wpcs_DEBUG') && wpcs_DEBUG == true)
) {
add_action('init', function () {
global $wp_rewrite;
$wp_rewrite->flush_rules();
});
add_action('wp_footer', 'wpcs_debug');
}
}
add_action('admin_menu', 'wpcs_admin_init');//插件后台菜单钩子
/* 全局代码END; 下面的全是函数定义 */
/**
* 插件初始化
*
* 本函数做了下面事情:
* A. 调用wpcs_get_noconversion_url函数设置 $wpcs_noconversion_url全局变量
* A. 调用wpcs_get_lang_url函数设置 $wpcs_langs_urls全局(数组)变量
* B. 如果当前为POST方式提交评论请求, 直接调用wpcs_do_conversion
* B. 否则, 加载parse_request接口
*/
function wpcs_init() {
global $wpcs_options, $wp_rewrite;
if ($wpcs_options['wpcs_use_permalink'] != 0 && empty($wp_rewrite->permalink_structure)) {
$wpcs_options['wpcs_use_permalink'] = 0;
update_option('wpcs_options', $wpcs_options);
}
if ($wpcs_options['wpcs_use_permalink'] != 0) {
add_filter('rewrite_rules_array', 'wpcs_rewrite_rules');
}
if ((strpos($_SERVER['PHP_SELF'], 'wp-comments-post.php') !== false
|| strpos($_SERVER['PHP_SELF'], 'ajax-comments.php') !== false
|| strpos($_SERVER['PHP_SELF'], 'comments-ajax.php') !== false
) &&
$_SERVER["REQUEST_METHOD"] == "POST" &&
! empty($_POST['variant']) && in_array($_POST['variant'], $wpcs_options['wpcs_used_langs'])
) {
global $wpcs_target_lang;
$wpcs_target_lang = $_POST['variant'];
wpcs_do_conversion();
return;
}
if ('page' == get_option('show_on_front') && get_option('page_on_front')) {
add_action('parse_query', 'wpcs_parse_query_fix');
}
add_action('parse_request', 'wpcs_parse_query');
add_action('template_redirect', 'wpcs_template_redirect', - 100);//本插件核心代码.
}
/**
* 修复首页显示Page时繁简转换页仍然显示最新posts的问题
* dirty but should works
* based on wp 3.5
* @since 1.1.13
* @see wp-include/query.php
*
*/
function wpcs_parse_query_fix($this_WP_Query) {
//copied and modified from wp-includes/query.php
$qv = &$this_WP_Query->query_vars;
// Correct is_* for page_on_front and page_for_posts
if ($this_WP_Query->is_home && 'page' == get_option('show_on_front') && get_option('page_on_front')) {
$_query = wp_parse_args($this_WP_Query->query);
// pagename can be set and empty depending on matched rewrite rules. Ignore an empty pagename.
if (isset($_query['pagename']) && '' == $_query['pagename']) {
unset($_query['pagename']);
}
if (empty($_query) || ! array_diff(array_keys($_query), array(
'preview',
'page',
'paged',
'cpage',
'variant'
))) {
$this_WP_Query->is_page = true;
$this_WP_Query->is_home = false;
$qv['page_id'] = get_option('page_on_front');
// Correct <!--nextpage--> for page_on_front
if ( ! empty($qv['paged'])) {
$qv['page'] = $qv['paged'];
unset($qv['paged']);
}
}
}
if ('' != $qv['pagename']) {
$this_WP_Query->queried_object = get_page_by_path($qv['pagename']);
if ( ! empty($this_WP_Query->queried_object)) {
$this_WP_Query->queried_object_id = (int) $this_WP_Query->queried_object->ID;
} else {
unset($this_WP_Query->queried_object);
}
if ('page' == get_option('show_on_front') && isset($this_WP_Query->queried_object_id) && $this_WP_Query->queried_object_id == get_option('page_for_posts')) {
$this_WP_Query->is_page = false;
$this_WP_Query->is_home = true;
$this_WP_Query->is_posts_page = true;
}
}
if ($qv['page_id']) {
if ('page' == get_option('show_on_front') && $qv['page_id'] == get_option('page_for_posts')) {
$this_WP_Query->is_page = false;
$this_WP_Query->is_home = true;
$this_WP_Query->is_posts_page = true;
}
}
if ( ! empty($qv['post_type'])) {
if (is_array($qv['post_type'])) {
$qv['post_type'] = array_map('sanitize_key', $qv['post_type']);
} else {
$qv['post_type'] = sanitize_key($qv['post_type']);
}
}
if ( ! empty($qv['post_status'])) {
if (is_array($qv['post_status'])) {
$qv['post_status'] = array_map('sanitize_key', $qv['post_status']);
} else {
$qv['post_status'] = preg_replace('|[^a-z0-9_,-]|', '', $qv['post_status']);
}
}
if ($this_WP_Query->is_posts_page && ( ! isset($qv['withcomments']) || ! $qv['withcomments'])) {
$this_WP_Query->is_comment_feed = false;
}
$this_WP_Query->is_singular = $this_WP_Query->is_single || $this_WP_Query->is_page || $this_WP_Query->is_attachment;
// Done correcting is_* for page_on_front and page_for_posts
/*
if ( '404' == $qv['error'] )
$this_WP_Query->set_404();
$this_WP_Query->query_vars_hash = md5( serialize( $this_WP_Query->query_vars ) );
$this_WP_Query->query_vars_changed = false;
*/
}
//开发中功能, 发表文章时进行繁简转换
/*
add_filter('content_save_pre', $wpcs_langs['zh-tw'][0]);
add_filter('title_save_pre', $wpcs_langs['zh-tw'][0]);
add_action('admin_menu', 'wpcs_ep');
function wpcs_ep() {
add_meta_box('chinese-conversion', 'Chinese Switcher', 'wpcs_edit_post', 'post');
add_meta_box('chinese-conversion', 'Chinese Switcher', 'wpcs_edit_post', 'page');
}
function wpcs_edit_post() {
echo '111';
}
*/
/**
* 输出Header信息
*
* 在繁简转换页<header>部分输出一些JS和noindex的meta信息.
* noindex的meta头是为了防止搜索引擎索引重复内容;
*
* JS信息是为了客户端一些应用和功能保留的.
* 举例, 当访客在一个繁简转换页面提交搜索时, 本插件载入的JS脚本会在GET请求里附加一个variant变量,
* 如 /?s=test&variant=zh-tw
* 这样服务器端能够获取用户当前中文语言, 并显示对应语言的搜索结果页
*
*/
function wpcs_header() {
global $wpcs_target_lang, $wpcs_langs_urls, $wpcs_noconversion_url, $wpcs_direct_conversion_flag;
echo "\n" . '<!-- WP Chinese Switcher Plugin Version ' . wpcs_VERSION . ' -->';
echo "<script type=\"text/javascript\">
//<![CDATA[
var wpcs_target_lang=\"$wpcs_target_lang\";var wpcs_noconversion_url=\"$wpcs_noconversion_url\";var wpcs_langs_urls=new Array();";
foreach ($wpcs_langs_urls as $key => $value) {
echo 'wpcs_langs_urls["' . $key . '"]="' . $value . '";';
}
echo '
//]]>
</script>';
if ( ! $wpcs_direct_conversion_flag) {
wp_enqueue_script('wpcs-search-js', wpcs_DIR_URL . 'assets/js/search-variant.min.js', array(), '1.1', false);
}
//echo '<script type="text/javascript" src="' . wpcs_DIR_URL . 'assets/js/search-variant.min.js' . '"></script>';
if ($wpcs_direct_conversion_flag ||
((class_exists('All_in_One_SEO_Pack') || class_exists('Platinum_SEO_Pack')) &&
! is_single() && ! is_home() && ! is_page() && ! is_search())
) {
return;
} else {
echo '<meta name="robots" content="noindex,follow" />';
}
}
/*
* 设置url. 包括当前页面原始URL和各个语言版本URL
* @since 1.1.7
*
*/
function wpcs_template_redirect() {
global $wpcs_noconversion_url, $wpcs_langs_urls, $wpcs_options, $wpcs_target_lang, $wpcs_redirect_to;
if ($wpcs_noconversion_url == get_option('home') . '/' && $wpcs_options['wpcs_use_permalink']) {
foreach ($wpcs_options['wpcs_used_langs'] as $value) {
$wpcs_langs_urls[$value] = $wpcs_noconversion_url . $value . '/';
}
} else {
foreach ($wpcs_options['wpcs_used_langs'] as $value) {
$wpcs_langs_urls[$value] = wpcs_link_conversion($wpcs_noconversion_url, $value);
}
}
if ( ! is_404() && $wpcs_redirect_to) {
setcookie('wpcs_is_redirect_' . COOKIEHASH, '1', 0, COOKIEPATH, COOKIE_DOMAIN);
wp_redirect($wpcs_langs_urls[$wpcs_redirect_to], 302);
}
if ( ! $wpcs_target_lang) {
return;
}
add_action('comment_form', 'wpcs_modify_comment_form');
function wpcs_modify_comment_form() {
global $wpcs_target_lang;
echo '<input type="hidden" name="variant" value="' . $wpcs_target_lang . '" />';
}
wpcs_do_conversion();
}
/**
* 在Wordpress的query vars里增加一个variant变量.
*
*/
function wpcs_insert_query_vars($vars) {
array_push($vars, 'variant');
return $vars;
}
/**
* Widget Class
* @since 1.1.8
*
*/
class wpcs_Widget extends WP_Widget {
function __construct() {
parent::__construct('widget_wpcs', 'Chinese Switcher', array(
'classname' => 'widget_wpcs',
'description' => 'Chinese Switcher Widget'
));
}
function widget($args, $instance) {
extract($args);
$title = apply_filters('widget_title', $instance['title']);
echo $before_widget;
if ($title) {
echo $before_title . $title . $after_title;
}
wpcs_output_navi(isset($instance['args']) ? $instance['args'] : '');
echo $after_widget;
}
function update($new_instance, $old_instance) {
return $new_instance;
}
function form($instance) {
$title = isset($instance['title']) ? esc_attr($instance['title']) : '';
$args = isset($instance['args']) ? esc_attr($instance['args']) : '';
?>
<p>
<label for="<?php echo $this->get_field_id('title'); ?>">Title: <input class="widefat"
id="<?php echo $this->get_field_id('title'); ?>"
name="<?php echo $this->get_field_name('title'); ?>"
type="text"
value="<?php echo $title; ?>"/></label>
<label for="<?php echo $this->get_field_id('args'); ?>">Args: <input class="widefat"
id="<?php echo $this->get_field_id('args'); ?>"
name="<?php echo $this->get_field_name('args'); ?>"
type="text" value="<?php echo $args; ?>"/></label>
</p>
<?php
}
}
/**
* 转换字符串到当前请求的中文语言
*
* @param string $str string inputed
* @param string $variant optional, Default to null, chinese language code you want string to be converted, if null( default), will use $GLOBALS['wpcs_target_lang']
*
* @return converted string
*
* 这是本插件繁简转换页使用的基本中文转换函数. 例如, 如果访客请求一个"台湾正体"版本页面,
* $wpcs_conversion_function被设置为'zhconversion_tw',
* 本函数调用其把字符串转换为"台湾正体"版本
*
*/
function zhconversion($str, $variant = null) {
global $wpcs_options, $wpcs_langs;
if ($variant === null) {
$variant = $GLOBALS['wpcs_target_lang'];
}
if ($variant == false) {
return $str;
}
//if( !empty($wpcs_options['wpcs_no_conversion_tag']) || $wpcs_options['wpcs_no_conversion_ja'] == 1 )
// return limit_zhconversion($str, $wpcs_langs[$variant][0]);
return $wpcs_langs[$variant][0]($str);
}
function zhconversion2($str, $variant = null) { // do not convert content within <!--wpcs_NC_START--> and <!--wpcs_NC_END-->.
global $wpcs_options, $wpcs_langs;
if ($variant === null) {
$variant = $GLOBALS['wpcs_target_lang'];
}
if ($variant == false) {
return $str;
}
return limit_zhconversion($str, $wpcs_langs[$variant][0]);
}
$_wpcs_id = 1000;
/**
* get a unique id number
*/
function wpcs_id() {
global $_wpcs_id;
return $_wpcs_id ++;
}
/**
* filter the content
* @since 1.1.14
*
*/
function wpcs_no_conversion_filter($str) {
global $wpcs_options;
$html = str_get_html($str);
$query = '';
if ( ! empty($wpcs_options['wpcs_no_conversion_ja'])) {
$query .= '*[lang="ja"]';
}
if ( ! empty($wpcs_options['wpcs_no_conversion_tag'])) {
if ($query != '') {
$query .= ',';
}
if (preg_match('/^[a-z1-9|]+$/', $wpcs_options['wpcs_no_conversion_tag'])) {
$query .= str_replace('|', ',', $wpcs_options['wpcs_no_conversion_tag']);
} // backward compatability
else {
$query .= $wpcs_options['wpcs_no_conversion_tag'];
}
}
$elements = $html->find($query);
if (count($elements) == 0) {
return $str;
}
foreach ($elements as $element) {
$id = wpcs_id();
$element->innertext = '<!--wpcs_NC' . $id . '_START-->' . $element->innertext . '<!--wpcs_NC' . $id . '_END-->';
}
return (string) $html;
}
/**
* 安全转换字符串到当前请求的中文语言
*
* @param string $str string inputed
* @param string $variant optional, Default to null, chinese language code you want string to be converted, if null( default), will use $GLOBALS['wpcs_target_lang']
*
* @return converted string
*
* 与zhconversion函数不同的是本函数首先确保载入繁简转换表, 因为多了一次判断, 不可避免多耗费资源.
*
*/
function zhconversion_safe($str, $variant = null) {
wpcs_load_conversion_table();
return zhconversion($str, $variant);
}
/**
* 转换字符到多种中文语言,返回数组
*
* @param string $str string to be converted
* @param array $langs Optional, Default to array('zh-tw', 'zh-cn'). array of chinese languages codes you want string to be converted to
*
* @return array converted strings array
*
* Example: zhconversion('网络');
* Return: array('网络', '网络');
*
*/
function zhconversion_all($str, $langs = array('zh-tw', 'zh-cn', 'zh-hk', 'zh-sg', 'zh-hans', 'zh-hant')) {
global $wpcs_langs;
$return = array();
foreach ($langs as $value) {
$tmp = $wpcs_langs[$value][0] ($str);
if ($tmp != $str) {
$return[] = $tmp;
}
}
return array_unique($return);
}
/**
* 递归的对数组中元素用zhconversion函数转换, 返回处理后数组.
*
*/
function zhconversion_deep($value) {
$value = is_array($value) ? array_map('zhconversion_deep', $value) : zhconversion($value);
return $value;
}
/**
* 对输入字符串进行有限中文转换. 不转换<!--wpcs_NC_START-->和<!--wpcs_NC_END-->之间的中文
*
* @param string $str string inputed
* @param string $function conversion function for current requested chinese language
*
* @return converted string
*
*/
function limit_zhconversion($str, $function) {
if ($m = preg_split('/(<!--wpcs_NC(\d*)_START-->)(.*?)(<!--wpcs_NC\2_END-->)/s', $str, - 1, PREG_SPLIT_DELIM_CAPTURE)) {
$r = '';
$count = 0;
foreach ($m as $v) {
$count ++;
if ($count % 5 == 1) {
$r .= $function ($v);
} else if ($count % 5 == 4) {
$r .= $v;
}
}
return $r;
} else {
return $function($str);
}
}
/**
* 中文转换函数. (zhconversion_hans转换字符串为简体中文, zhconversion_hant转换字符串为繁体中文, zhconversion_tw转换字符串为台湾正体, 依次类推)
*
* @param string $str string to be converted
*
* @return string converted chinese string
*
* 对于zh-hans和zh-hant以外中文语言(如zh-tw),Mediawiki里的做法是 先array_merge($zh2Hans, $zh2TW),再做一次strtr. 但这里考虑到内存需求和CPU资源,采用两次strtr方法.其中$zh2TW先做,因为其中项目可能覆盖zh2Hant里的项目
*
* 注意: 如果您想在其他地方(如Theme)里使用下面中文转换函数, 请保证首先调用一次wpcs_load_conversion_table(); , 因为出于节省内存需求, 本插件仅在繁简转换页面才会加载中文转换表.
*
*/
function zhconversion_hant($str) {
global $zh2Hant;
return strtr($str, $zh2Hant);
}
function zhconversion_hans($str) {
global $zh2Hans;
return strtr($str, $zh2Hans);
}
function zhconversion_cn($str) {
global $zh2Hans, $zh2CN;
return strtr(strtr($str, $zh2CN), $zh2Hans);
}
function zhconversion_tw($str) {
global $zh2Hant, $zh2TW;
return strtr(strtr($str, $zh2TW), $zh2Hant);
}
function zhconversion_sg($str) {
global $zh2Hans, $zh2SG;
return strtr(strtr($str, $zh2SG), $zh2Hans);
}
function zhconversion_hk($str) {
global $zh2Hant, $zh2HK;
return strtr(strtr($str, $zh2HK), $zh2Hant);
}
/**
* 不推荐, 为向后兼容保留的函数
* 为模板预留的函数, 把链接安全转换为当前中文语言版本的, 您可以在模板中调用其转换硬编码的链接.
* 例如, 您可以在您的footer.php里显示博客About页链接: <a href="<?php echo wpcs_link_safe_conversion('http://domain.tld/about/'); ?>" >About</a>
* 如果用户请求一个繁简转换页面, 则输出为该页的对应繁简转换版本链接,如 http://domain.tld/about/zh-tw/
*
* @param string $link URL to be converted
*
* @return string converted URL
*
* @deprecated Use wpcs_link_conversion($link)
*/
function wpcs_link_safe_conversion($link) {
return wpcs_link_conversion($link);
}
/**
* 取消WP错误的重定向
*
* @param string $redirect_to 'redirect_canonical' filter's first argument
* @param string $redirect_from 'redirect_canonical' filter's second argument
*
* @return string|false
*
* 因为Wordpress canonical url机制, 有时会把繁简转换页重定向到错误URL
* 本函数检测并取消这种重定向(通过返回false)
*
*/
function wpcs_cancel_incorrect_redirect($redirect_to, $redirect_from) {
global $wp_rewrite;
if (preg_match('/^.*\/(zh-tw|zh-cn|zh-sg|zh-hant|zh-hans|zh-my|zh-mo|zh-hk|zh|zh-reset)\/?.+$/', $redirect_to)) {
if (($wp_rewrite->use_trailing_slashes && substr($redirect_from, - 1) != '/') ||
( ! $wp_rewrite->use_trailing_slashes && substr($redirect_from, - 1) == '/')
) {
return user_trailingslashit($redirect_from);
}
return false;
}
return $redirect_to;
}
/**
* 修改WP Rewrite规则数组, 增加本插件添加的Rewrite规则
*
* @param array $rules 'rewrite_rules_array' filter's argument , WP rewrite rules array
*
* @return array processed rewrite rules array
*
*
* 基本上, 本函数对WP的Rewrite规则数组这样处理:
*
* 对 '..../?$' => 'index.php?var1=$matches[1]..&varN=$matches[N]' 这样一条规则,
* 如果规则体部分 '.../?$' 含有 'trackback', 'attachment', 'print', 不做处理
* 否则, 增加一条 '.../zh-tw|zh-hant|...|zh-hans|zh|zh-reset/?$' => 'index.php?var1=$matches[1]..&varN=$matches[N]&variant=$matches[N+1]'的新规则
* 1.1.6版本后, 因为增加了/zh-tw/original/permalink/这种URL形式, 情况更加复杂
*
*/
function wpcs_rewrite_rules($rules) {
global $wpcs_options;
$reg = implode('|', $wpcs_options['wpcs_used_langs']);
$rules2 = array();
if ($wpcs_options['wpcs_use_permalink'] == 1) {
foreach ($rules as $key => $value) {
if (strpos($key, 'trackback') !== false || strpos($key, 'print') !== false || strpos($value, 'lang=') !== false) {
continue;
}
if (substr($key, - 3) == '/?$') {
if ( ! preg_match_all('/\$matches\[(\d+)\]/', $value, $matches, PREG_PATTERN_ORDER)) {
continue;
}
$number = count($matches[0]) + 1;
$rules2[substr($key, 0, - 3) . '/(' . $reg . '|zh|zh-reset)/?$'] = $value . '&variant=$matches[' . $number . ']';
}
}
} else { // $wpcs_options['wpcs_use_permalink'] == 2
foreach ($rules as $key => $value) {
if (strpos($key, 'trackback') !== false || strpos($key, 'print') !== false || strpos($value, 'lang=') !== false) {
continue;
}
if (substr($key, - 3) == '/?$') {
$rules2['(' . $reg . '|zh|zh-reset)/' . $key] = preg_replace_callback('/\$matches\[(\d+)\]/', '_wpcs_permalink_preg_callback', $value) . '&variant=$matches[1]';
}
}
}
$rules2['^(' . $reg . '|zh|zh-reset)/?$'] = 'index.php?variant=$matches[1]';//首页的繁简转换版本rewrite规则
$return = array_merge($rules2, $rules);
return $return;
}
function _wpcs_permalink_preg_callback($matches) {
return '$matches[' . (intval($matches[1]) + 1) . ']';
}
/**
* 修改繁简转换页面WP内部链接
*
* @param string $link URL to be converted
*
* @return string converted URL
*
* 如果访客请求一个繁简转换页面, 本函数把该页的所有链接转换为对应中文语言版本的
* 例如把分类页链接转换为 /category/cat-name/zh-xx/, 把Tag页链接转换为 /tag/tag-name/zh-xx/
*
*/
function wpcs_link_conversion($link, $variant = null) {
global $wpcs_options;
static $wpcs_wp_home;
if (empty($wpcs_wp_home)) {
$wpcs_wp_home = home_url();
}
if ($variant === null) {
$variant = $GLOBALS['wpcs_target_lang'];
}
if ($variant == false) {
return $link;
}
if (strpos($link, '?') !== false || ! $wpcs_options['wpcs_use_permalink']) {
return add_query_arg('variant', $variant, $link);
}
if ($wpcs_options['wpcs_use_permalink'] == 1) {
return user_trailingslashit(trailingslashit($link) . $variant);
}
return preg_replace('#^(http(s?)://[^/]+' . $wpcs_wp_home . ')#', '\\1' . $variant . '/', $link);
}
/**
* don't convert a link in "direct_conversion" mode;
* @since 1.1.14.2
*/
function wpcs_link_conversion_auto($link, $variant = null) {
global $wpcs_target_lang, $wpcs_direct_conversion_flag, $wpcs_options;
if ($link == home_url('')) {
$link .= '/';
}
if ( ! $wpcs_target_lang || $wpcs_direct_conversion_flag) {
return $link;
} else {
if ($link == home_url('/') && ! empty($wpcs_options['wpcs_use_permalink'])) {
return trailingslashit(wpcs_link_conversion($link));
}
return wpcs_link_conversion($link);
}
}
/**
* 获取当前页面原始URL
* @return original permalink of current page
*
* 本函数返回当前请求页面"原始版本" URL.
* 即如果当前URL是 /YYYY/mm/sample-post/zh-tw/ 形式的台湾正体版本,
* 会返回 /YYYY/mm/sample-post/ 的原始(不进行中文转换)版本链接.
*
*/
function wpcs_get_noconversion_url() {
global $wpcs_options;
$reg = implode('|', $wpcs_options['wpcs_used_langs']);
$tmp = (is_ssl() ? 'https://' : 'http://') .
$_SERVER['HTTP_HOST'] .
$_SERVER['REQUEST_URI'];
$tmp = trim(strtolower(remove_query_arg('variant', $tmp)));
if (preg_match('/^(.*)\/(' . $reg . '|zh|zh-reset)(\/.*)?$/', $tmp, $matches)) {
$tmp = user_trailingslashit(trailingslashit($matches[1]) . ltrim($matches[3], '/')); //为什幺这样写代码? 是有原因的- -(众人: 废话!)
if ($tmp == get_option('home')) {
$tmp .= '/';
}
}
return $tmp;
}
/**
* 修复繁简转换页分页链接
*
* @param string $link URL to be fixed
*
* @return string Fixed URL
*
* 本函数修复繁简转换页面 /.../page/N 形式的分页链接为正确形式. 具体说明略.
*
* 您可以在本函数内第一行加上 'return $link;' 然后访问您博客首页或存盘页的繁体或简体版本,
* 会发现"上一页"(previous posts page)和"下一页"(next posts page)的链接URL是错误的.
* 本函数算法极为愚蠢- -, 但是没有其它办法, 因为wordpress对于分页链接的生成策略非常死板且无法更多地通过filter控制
*
*/
function wpcs_pagenum_link_fix($link) {
global $wpcs_target_lang, $wpcs_options;
global $paged;
if ($wpcs_options['wpcs_use_permalink'] != 1) {
return $link;
}
if (preg_match('/^(.*)\/page\/\d+\/' . $wpcs_target_lang . '\/page\/(\d+)\/?$/', $link, $tmp) ||
preg_match('/^(.*)\/' . $wpcs_target_lang . '\/page\/(\d+)\/?$/', $link, $tmp)) {
return user_trailingslashit($tmp[1] . '/page/' . $tmp[2] . '/' . $wpcs_target_lang);
} else if (preg_match('/^(.*)\/page\/(\d+)\/' . $wpcs_target_lang . '\/?$/', $link, $tmp) && $tmp[2] == 2 && $paged == 2) {
if ($tmp[1] == get_option('home')) {
return $tmp[1] . '/' . $wpcs_target_lang . '/';
}
return user_trailingslashit($tmp[1] . '/' . $wpcs_target_lang);
}
return $link;
}
/**
* 修复繁简转换后页面部分内部链接.
*
* @param string $link URL to be fixed
*
* @return string Fixed URL
*
* 本插件会添加 post_link钩子, 从而修改繁简转换页单篇文章页永久链接, 但WP的很多内部链接生成依赖这个permalink.
* (为什幺加载在post_link钩子上而不是the_permalink钩子上? 有很多原因,这里不说了.)
*
* 举例而言, 本插件把 繁简转换页的文章permalink修改为 /YYYY/mm/sample-post/zh-tw/ (如果您原来的Permalink是/YYYY/mm/sample-post/)
* 那幺WP生成的该篇文章评论Feed链接是 /YYYY/mm/sample-post/zh-tw/feed/, 出错
* 本函数把这个链接修复为 /YYYY/mm/sample-post/feed/zh-tw/ 的正确形式.
*
*/
function wpcs_fix_link_conversion($link) {
global $wpcs_options;
if ($wpcs_options['wpcs_use_permalink'] == 1) {
if ($flag = strstr($link, '#')) {
$link = substr($link, 0, - strlen($flag));
}
if (preg_match('/^(.*\/)(zh-tw|zh-cn|zh-sg|zh-hant|zh-hans|zh-my|zh-mo|zh-hk|zh|zh-reset)\/(.+)$/', $link, $tmp)) {
return user_trailingslashit($tmp[1] . trailingslashit($tmp[3]) . $tmp[2]) . $flag;
}
return $link . $flag;
} else if ($wpcs_options['wpcs_use_permalink'] == 0) {
if (preg_match('/^(.*)\?variant=([-a-zA-Z]+)\/(.*)$/', $link, $tmp)) {
return add_query_arg('variant', $tmp[2], trailingslashit($tmp[1]) . $tmp[3]);
}
return $link;
} else {
return $link;
}
}
/**
* "取消"繁简转换后页面部分内部链接转换.
*
* @param string $link URL to be fixed
*
* @return string Fixed URL
*
* 本函数作用与上面的wpcs_fix_link_conversion类似, 不同的是本函数"取消"而不是"修复"繁简转换页内部链接
* 举例而言, 对繁简转换页面而言, WP生成的单篇文章trackback地址 是 /YYYY/mm/sample-post/zh-tw/trackback/
* 本函数把它修改为 /YYYY/mm/sample-post/trackback/的正确形式(即去除URL中 zh-xx字段)
*
*/
function wpcs_cancel_link_conversion($link) {
global $wpcs_options;
if ($wpcs_options['wpcs_use_permalink']) {
if (preg_match('/^(.*\/)(zh-tw|zh-cn|zh-sg|zh-hant|zh-hans|zh-my|zh-mo|zh-hk|zh|zh-reset)\/(.+)$/', $link, $tmp)) {
return $tmp[1] . $tmp[3];
}
return $link;
} else {
if (preg_match('/^(.*)\?variant=[-a-zA-Z]+\/(.*)$/', $link, $tmp)) {
return trailingslashit($tmp[1]) . $tmp[2];
}
return $link;
}
}
/**
* ...
*/
function wpcs_rel_canonical() {
if ( ! is_singular()) {
return;
}
global $wp_the_query;
if ( ! $id = $wp_the_query->get_queried_object_id()) {
return;
}
$link = wpcs_cancel_link_conversion(get_permalink($id));
echo "<link rel='canonical' href='$link' />\n";
}
/**
* 返回w3c标准的当前中文语言代码,如 zh-CN, zh-Hans
* 返回值可以用在html元素的 lang=""标签里
*
* @since 1.1.9
* @link http://www.w3.org/International/articles/language-tags/ W3C关于language attribute文章.
*/
function variant_attribute($default = "zh", $variant = false) {
global $wpcs_langs;
if ( ! $variant) {
$variant = $GLOBALS['wpcs_target_lang'];
}
if ( ! $variant) {
return $default;
}
return $wpcs_langs[$variant][3];
}
/**
* 返回当前语言代码
* @since 1.1.9
*/
function variant($default = false) {
global $wpcs_target_lang;
if ( ! $wpcs_target_lang) {
return $default;
}
return $wpcs_target_lang;
}
/**
* 输出当前页面不同中文语言版本链接
*
* @param bool $return Optional, Default to false, return or echo result.
*
* 本插件Widget会调用这个函数.
*
*/
function wpcs_output_navi($args = '') {
global $wpcs_target_lang, $wpcs_noconversion_url, $wpcs_langs_urls, $wpcs_langs, $wpcs_options;
extract(wp_parse_args($args, array('mode' => 'normal', 'echo' => 1)));
if ($mode == 'wrap') {
wpcs_output_navi2();
return;
}
if ( ! empty($wpcs_options['nctip'])) {
$noconverttip = $wpcs_options['nctip'];
} else {
$locale = str_replace('_', '-', strtolower(get_locale()));
if (in_array($locale, array('zh-hant', 'zh-tw', 'zh-hk', 'zh-mo'))) //zh-mo = 澳门繁体, 目前与zh-hk香港繁体转换表相同
{
$noconverttip = '不转换';
} else {
$noconverttip = '不转换';
}
}
if ($wpcs_target_lang) {
$noconverttip = zhconversion($noconverttip);
}
if (($wpcs_options['wpcs_browser_redirect'] == 2 || $wpcs_options['wpcs_use_cookie_variant'] == 2) &&
$wpcs_target_lang
) {
$default_url = wpcs_link_conversion($wpcs_noconversion_url, 'zh');
if ($wpcs_options['wpcs_use_permalink'] != 0 && is_home() && ! is_paged()) {
$default_url = trailingslashit($default_url);
}
} else {
$default_url = $wpcs_noconversion_url;
}
$output = "\n" . '<div id="wpcs_widget_inner"><!--wpcs_NC_START-->' . "\n";
$output .= ' <span id="wpcs_original_link" class="' . ($wpcs_target_lang == false ? 'wpcs_current_lang' : 'wpcs_lang') . '" ><a class="wpcs_link" href="' . esc_url($default_url) . '" title="' . esc_html($noconverttip) . '">' . esc_html($noconverttip) . '</a></span>' . "\n";
foreach ($wpcs_langs_urls as $key => $value) {
$tip = ! empty($wpcs_options[$wpcs_langs[$key][1]]) ? esc_html($wpcs_options[$wpcs_langs[$key][1]]) : $wpcs_langs[$key][2];
$output .= ' <span id="wpcs_' . $key . '_link" class="' . ($wpcs_target_lang == $key ? 'wpcs_current_lang' : 'wpcs_lang') . '" ><a class="wpcs_link" rel="nofollow" href="' . esc_url($value) . '" title="' . esc_html($tip) . '" >' . esc_html($tip) . '</a></span>' . "\n";
}
$output .= '<!--wpcs_NC_END--></div>' . "\n";
if ( ! $echo) {
return $output;
}
echo $output;
}
/**
* Another function for outputing navi. You should not want to use it.
*
*/
function wpcs_output_navi2() {
global $wpcs_target_lang, $wpcs_noconversion_url, $wpcs_langs_urls, $wpcs_options;
if (($wpcs_options['wpcs_browser_redirect'] == 2 || $wpcs_options['wpcs_use_cookie_variant'] == 2) &&
$wpcs_target_lang
) {
$default_url = wpcs_link_conversion($wpcs_noconversion_url, 'zh');
if ($wpcs_options['wpcs_use_permalink'] != 0 && is_home() && ! is_paged()) {
$default_url = trailingslashit($default_url);
}
} else {
$default_url = $wpcs_noconversion_url;
}
$output = "\n" . '<div id="wpcs_widget_inner"><!--wpcs_NC_START-->' . "\n";
$output .= ' <span id="wpcs_original_link" class="' . ($wpcs_target_lang == false ? 'wpcs_current_lang' : 'wpcs_lang') . '" ><a class="wpcs_link" href="' . esc_url($default_url) . '" title="不转换">不转换</a></span>' . "\n";
$output .= ' <span id="wpcs_cn_link" class="' . ($wpcs_target_lang == 'zh-cn' ? 'wpcs_current_lang' : 'wpcs_lang') . '" ><a class="wpcs_link" rel="nofollow" href="' . esc_url($wpcs_langs_urls['zh-cn']) . '" title="大陆简体" >大陆简体</a></span>' . "\n";
$output .= ' <span id="wpcs_tw_link" class="' . ($wpcs_target_lang == 'zh-tw' ? 'wpcs_current_lang' : 'wpcs_lang') . '"><a class="wpcs_link" rel="nofollow" href="' . esc_url($wpcs_langs_urls['zh-tw']) . '" title="台湾正体" >台湾正体</a></span>' . "\n";
/*$output .= ' <span id="wpcs_more_links" class="wpcs_lang" >
<span id="wpcs_more_links_inner_more" class="'. ( ( $wpcs_target_lang == false || $wpcs_target_lang == 'zh-cn' || $wpcs_target_lang == 'zh-tw' ) ? 'wpcs_lang' : 'wpcs_current_lang' ) . '"><a class="wpcs_link" href="#" onclick="return false;" >其它中文</a></span>
<span id="wpcs_more_links_inner" >
<span id="wpcs_hans_link" class="' . ( $wpcs_target_lang == 'zh-hans' ? 'wpcs_current_lang' : 'wpcs_lang' ) . '" ><a class="wpcs_link" rel="nofollow" href="' . esc_url($wpcs_langs_urls['zh-hans']) . '" title="简体中文" >简体中文' . '</a></span>
<span id="wpcs_hant_link" class="' . ( $wpcs_target_lang == 'zh-hant' ? 'wpcs_current_lang' : 'wpcs_lang' ) . '" ><a class="wpcs_link" rel="nofollow" href="' . esc_url($wpcs_langs_urls['zh-hant']) . '" title="繁体中文" >繁体中文' . '</a></span>
<span id="wpcs_hk_link" class="' . ( $wpcs_target_lang == 'zh-hk' ? 'wpcs_current_lang' : 'wpcs_lang' ) . '"><a class="wpcs_link" rel="nofollow" href="' . esc_url($wpcs_langs_urls['zh-hk']) . '" title="港澳繁体" >港澳繁体</a></span>
<span id="wpcs_sg_link" class="' . ( $wpcs_target_lang == 'zh-sg' ? 'wpcs_current_lang' : 'wpcs_lang' ) . '" ><a class="wpcs_link" rel="nofollow" href="' . esc_url($wpcs_langs_urls['zh-sg']) . '" title="马新简体" >马新简体</a></span>
</span>
</span>';*/
$output .= '<!--wpcs_NC_END--></div>' . "\n";
echo $output;
}
/**
* 从给定的语言列表中, 解析出浏览器客户端首选语言, 返回解析出的语言字符串或false
*
* @param string $accept_languages the languages sting, should set to $_SERVER['HTTP_ACCEPT_LANGUAGE']
* @param array $target_langs given languages array
* @param int|bool $flag Optional, default to 0 ( mean false ), description missing.
*
* @return string|bool the parsed lang or false if it doesn't exists
*
* 使用举例: 调用形式 wpcs_get_prefered_language($_SERVER['HTTP_ACCEPT_LANGUAGE'], $target_langs)
*
* $_SERVER['HTTP_ACCEPT_LANGUAGE']: ja,zh-hk;q=0.8,fr;q=0.5,en;q=0.3
* $target_langs: array('zh-hk', 'en')
* 返回值: zh-hk
*
* $_SERVER['HTTP_ACCEPT_LANGUAGE']: fr;q=0.5,en;q=0.3
* $target_langs: array('zh-hk', 'en')
* 返回值: en
*
* $_SERVER['HTTP_ACCEPT_LANGUAGE']: ja,zh-hk;q=0.8,fr;q=0.5,en;q=0.3
* $target_langs: array('zh-tw', 'zh-cn')
* 返回值: false
*
*/
function wpcs_get_prefered_language($accept_languages, $target_langs, $flag = 0) {
$langs = array();
preg_match_all('/([a-z]{1,8}(-[a-z]{1,8})?)\s*(;\s*q\s*=\s*(1|0\.[0-9]+))?/i', $accept_languages, $lang_parse);
if (count($lang_parse[1])) {
$langs = array_combine($lang_parse[1], $lang_parse[4]);//array_combine需要php5以上版本
foreach ($langs as $lang => $val) {
if ($val === '') {
$langs[$lang] = '1';
}
}
arsort($langs, SORT_NUMERIC);
$langs = array_keys($langs);
$langs = array_map('strtolower', $langs);
foreach ($langs as $val) {
if (in_array($val, $target_langs)) {
return $val;
}
}
if ($flag) {
$array = array('zh-hans', 'zh-cn', 'zh-sg', 'zh-my');
$a = array_intersect($array, $target_langs);
if ( ! empty($a)) {
$b = array_intersect($array, $langs);
if ( ! empty($b)) {
$a = each($a);
return $a[1];
}
}
$array = array('zh-hant', 'zh-tw', 'zh-hk', 'zh-mo');
$a = array_intersect($array, $target_langs);
if ( ! empty($a)) {
$b = array_intersect($array, $langs);
if ( ! empty($b)) {
$a = each($a);
return $a[1];
}
}
}
return false;
}
return false;
}
/**
* 判断当前请求是否为搜索引擎访问.
* 使用的算法极为保守, 只要不是几个主要的浏览器,就判定为Robots
*
* @return bool
* @uses $_SERVER['HTTP_USER_AGENT']
*/
function wpcs_is_robot() {
if (empty($_SERVER['HTTP_USER_AGENT'])) {
return true;
}
$ua = strtoupper($_SERVER['HTTP_USER_AGENT']);
$robots = array(
'bot',
'spider',
'crawler',
'dig',
'search',
'find'
);
foreach ($robots as $key => $val) {
if (strstr($ua, strtoupper($val))) {
return true;
}
}
$browsers = array(
"compatible; MSIE",
"UP.Browser",
"Mozilla",
"Opera",
"NSPlayer",
"Avant Browser",
"Chrome",
"Gecko",
"Safari",
"Lynx",
);
foreach ($browsers as $key => $val) {
if (strstr($ua, strtoupper($val))) {
return false;
}
}
return true;
}
/**
* fix a relative bug
* @since 1.1.14
*
*/
function wpcs_apply_filter_search_rule() {
add_filter('posts_where', 'wpcs_filter_search_rule', 100);
function search_distinct() {
return "DISTINCT";
}
add_filter('posts_distinct', 'search_distinct');
}
/**
* 对Wordpress搜索时生成sql语句的 where 条件部分进行处理, 使其同时在数据库中搜索关键词的中文简繁体形式.
*
* @param string $where 'post_where' filter's argument, 'WHERE...' part of the wordpesss query sql sentence
*
* @return string WHERE sentence have been processed
*
* 使用方法: add_filter('posts_where', 'wpcs_filter_search_rule');
* 原理说明: 假设访客通过表单搜索 "简体 繁体 中文", Wordpress生成的sql语句条件$where中一部分是这样的:
*
* ((wp_posts.post_title LIKE '%简体%') OR (wp_posts.post_content LIKE '%简体%')) AND ((wp_posts.post_title LIKE '%繁体%') OR (wp_posts.post_content LIKE '%繁体%')) AND ((wp_posts.post_title LIKE '%中文%') OR (wp_posts.post_content LIKE '%中文%')) OR (wp_posts.post_title LIKE '%简体 繁体 中文%') OR (wp_posts.post_content LIKE '%简体 繁体 中文%')
*
* 本函数把$where中的上面这部分替换为:
*
* ( ( wp_posts.post_title LIKE '%简体%') OR ( wp_posts.post_content LIKE '%简体%') OR ( wp_posts.post_title LIKE '%简体%') OR ( wp_posts.post_content LIKE '%简体%') ) AND ( ( wp_posts.post_title LIKE '%繁体%') OR ( wp_posts.post_content LIKE '%繁体%') OR ( wp_posts.post_title LIKE '%繁体%') OR ( wp_posts.post_content LIKE '%繁体%') ) AND ( ( wp_posts.post_title LIKE '%中文%') OR ( wp_posts.post_content LIKE '%中文%') ) OR ( wp_posts.post_title LIKE '%简体 繁体 中文%') OR ( wp_posts.post_content LIKE '%简体 繁体 中文%') OR ( wp_posts.post_title LIKE '%简体 繁体 中文%') OR ( wp_posts.post_content LIKE '%简体 繁体 中文%') OR ( wp_posts.post_title LIKE '%简体 繁体 中文%') OR ( wp_posts.post_content LIKE '%简体 繁体 中文%')
*
*/
function wpcs_filter_search_rule($where) {
global $wp_query, $wpdb;
if (empty($wp_query->query_vars['s'])) {
return $where;
}
if ( ! preg_match("/^([" . chr(228) . "-" . chr(233) . "]{1}[" . chr(128) . "-" . chr(191) . "]{1}[" . chr(128) . "-" . chr(191) . "]{1}){1}/", $wp_query->query_vars['s']) && ! preg_match("/([" . chr(228) . "-" . chr(233) . "]{1}[" . chr(128) . "-" . chr(191) . "]{1}[" . chr(128) . "-" . chr(191) . "]{1}){1}$/", $wp_query->query_vars['s']) && ! preg_match("/([" . chr(228) . "-" . chr(233) . "]{1}[" . chr(128) . "-" . chr(191) . "]{1}[" . chr(128) . "-" . chr(191) . "]{1}){2,}/", $wp_query->query_vars['s'])) {
return $where;
}//如果搜索关键字中不含中文本符, 直接返回
wpcs_load_conversion_table();
$placeholder = '%';
if (method_exists($wpdb, 'placeholder_escape')) {
$placeholder = $wpdb->placeholder_escape("%");
// echo("pe exists: " . $placeholder . '<br />');
}
$sql = '';
$and1 = '';
$original = '';//Wordpress原始搜索sql代码中 post_title和post_content like '%keyword%'的部分,本函数最后需要找出原始sql代码中这部分并予以替换, 所以必须在过程中重新生成一遍,
foreach ($wp_query->query_vars['search_terms'] as $value) {
$value = addslashes_gpc($value);
$original .= "{$and1}(($wpdb->posts.post_title LIKE '{$placeholder}{$value}{$placeholder}') OR ($wpdb->posts.post_excerpt LIKE '{$placeholder}{$value}{$placeholder}') OR ($wpdb->posts.post_content LIKE '{$placeholder}{$value}{$placeholder}'))";
$valuea = zhconversion_all($value);
$valuea[] = $value;
$sql .= "{$and1}( ";
$or2 = '';
foreach ($valuea as $v) {
$sql .= "{$or2}( " . $wpdb->prefix . "posts.post_title LIKE '{$placeholder}" . $v . "{$placeholder}') ";
$sql .= " OR ( " . $wpdb->prefix . "posts.post_content LIKE '{$placeholder}" . $v . "{$placeholder}') ";
$sql .= " OR ( " . $wpdb->prefix . "posts.post_excerpt LIKE '{$placeholder}" . $v . "{$placeholder}') ";
$or2 = ' OR ';
}
$sql .= ' ) ';
$and1 = ' AND ';
}
// debug
// echo("Where: ". $where . "<br /><br />Search: " . $original . "<br /><br />Replace with: $sql");die();
if (empty($sql)) {
return $where;
}
$where = preg_replace('/' . preg_quote($original, '/') . '/', $sql, $where, 1);
return $where;
}
/**
* ob_start Callback function
*
*/
function wpcs_ob_callback($buffer) {
global $wpcs_target_lang, $wpcs_direct_conversion_flag;
if ($wpcs_target_lang && ! $wpcs_direct_conversion_flag) {
$wpcs_home_url = wpcs_link_conversion_auto(home_url('/'));
$buffer = preg_replace('|(<a\s(?!class="wpcs_link")[^<>]*?href=([\'"]))' . preg_quote(esc_url(home_url('')), '|') . '/?(\2[^<>]*?>)|', '\\1' . esc_url($wpcs_home_url) . '\\3', $buffer);
}
return zhconversion2($buffer) . "\n" . '<!-- WP Chinese Switcher Full Page Converted. Target Lang: ' . $wpcs_target_lang . ' -->';
}
/**
* Debug Function
*
* 要开启本插件Debug, 去掉第一行 defined('wpcs_DEBUG', true')...注释.
* Debug信息将输出在页面footer位置( wp_footer action)
*
*/
function wpcs_debug() {
global $wpcs_noconversion_url, $wpcs_target_lang, $wpcs_langs_urls, $wpcs_deubg_data, $wpcs_langs, $wpcs_options, $wp_rewrite;
echo '<!--';
echo '<p style="font-size:20px;color:red;">';
echo 'WP Chinese Switcher Plugin Debug Output:<br />';
echo '默认URL: <a href="' . $wpcs_noconversion_url . '">' . $wpcs_noconversion_url . '</a><br />';
echo '当前语言(空则是不转换): ' . $wpcs_target_lang . "<br />";
echo 'Query String: ' . $_SERVER['QUERY_STRING'] . '<br />';
echo 'Request URI: ' . $_SERVER['REQUEST_URI'] . '<br />';
foreach ($wpcs_langs_urls as $key => $value) {
echo $key . ' URL: <a href="' . $value . '">' . $value . '</a><br />';
}
echo 'Category feed link: ' . get_category_feed_link(1) . '<br />';
echo 'Search feed link: ' . get_search_feed_link('test');
echo 'Rewrite Rules: <br />';
echo nl2br(htmlspecialchars(var_export($wp_rewrite->rewrite_rules(), true))) . '<br />';
echo 'Debug Data: <br />';
echo nl2br(htmlspecialchars(var_export($wpcs_deubg_data, true)));
echo '</p>';
echo '-->';
}
/**
* Admin管理后台初始化
*
*/
function wpcs_admin_init() {
global $wpcs_admin;
require_once(dirname(__FILE__) . '/wpchinese-switcher-admin.php');
$wpcs_admin = new wpcs_Admin();
}
/**
* Parse current request
*
* @param object $query 'parse_request' filter' argument, the 'WP' object
*
* @todo 彻底重写本函数（目前是一团浆糊）。使用Wordpress原生的query var系统读/写variant参数, 1.2版本实现.
* Core codes of this plugin
* 本函数获取当前请求中文语言并保存到 $wpcs_target_lang全局变量里.
* 并且还做其它一些事情.
*
*/
function wpcs_parse_query($query) {
if (is_robots()) {
return;
}
global $wpcs_target_lang, $wpcs_redirect_to, $wpcs_noconversion_url, $wpcs_options, $wpcs_direct_conversion_flag;
if ( ! is_404()) {
$wpcs_noconversion_url = wpcs_get_noconversion_url();
} else {
$wpcs_noconversion_url = get_option('home') . '/';
$wpcs_target_lang = false;
return;
}
$request_lang = isset($query->query_vars['variant']) ? $query->query_vars['variant'] : '';
$cookie_lang = isset($_COOKIE['wpcs_variant_' . COOKIEHASH]) ? $_COOKIE['wpcs_variant_' . COOKIEHASH] : '';
if ($request_lang && in_array($request_lang, $wpcs_options['wpcs_used_langs'])) {
$wpcs_target_lang = $request_lang;
} else {
$wpcs_target_lang = false;
}
if ( ! $wpcs_target_lang) {
if ($request_lang == 'zh') {
if ($wpcs_options['wpcs_use_cookie_variant'] != 0) {
setcookie('wpcs_variant_' . COOKIEHASH, 'zh', time() + 30000000, COOKIEPATH, COOKIE_DOMAIN);
} else {
setcookie('wpcs_is_redirect_' . COOKIEHASH, '1', 0, COOKIEPATH, COOKIE_DOMAIN);
}
header('Location: ' . $wpcs_noconversion_url);
die();
}
if ($request_lang == 'zh-reset') {
setcookie('wpcs_variant_' . COOKIEHASH, '', time() - 30000000, COOKIEPATH, COOKIE_DOMAIN);
setcookie('wpcs_is_redirect_' . COOKIEHASH, '', time() - 30000000, COOKIEPATH, COOKIE_DOMAIN);
header('Location: ' . $wpcs_noconversion_url);
die();
}
if ($cookie_lang == 'zh') {
if ($wpcs_options['wpcs_use_cookie_variant'] != 0) {
if ($wpcs_options['wpcs_search_conversion'] == 2) {
wpcs_apply_filter_search_rule();
}
return;
} else {
setcookie('wpcs_variant_' . COOKIEHASH, '', time() - 30000000, COOKIEPATH, COOKIE_DOMAIN);
}
}
if ( ! $request_lang && ! empty($_COOKIE['wpcs_is_redirect_' . COOKIEHASH])) {
if ($wpcs_options['wpcs_use_cookie_variant'] != 0) {
setcookie('wpcs_variant_' . COOKIEHASH, 'zh', time() + 30000000, COOKIEPATH, COOKIE_DOMAIN);
setcookie('wpcs_is_redirect_' . COOKIEHASH, '', time() - 30000000, COOKIEPATH, COOKIE_DOMAIN);
} else if ($cookie_lang) {
setcookie('wpcs_variant_' . COOKIEHASH, '', time() - 30000000, COOKIEPATH, COOKIE_DOMAIN);
}
if ($wpcs_options['wpcs_search_conversion'] == 2) {
wpcs_apply_filter_search_rule();
}
return;
}
$is_robot = wpcs_is_robot();
if ($wpcs_options['wpcs_use_cookie_variant'] != 0 && ! $is_robot && $cookie_lang) {
if (in_array($cookie_lang, $wpcs_options['wpcs_used_langs'])) {
if ($wpcs_options['wpcs_use_cookie_variant'] == 2) {
$wpcs_target_lang = $cookie_lang;
$wpcs_direct_conversion_flag = true;
} else {
$wpcs_redirect_to = $cookie_lang;
}
} else {
setcookie('wpcs_variant_' . COOKIEHASH, '', time() - 30000000, COOKIEPATH, COOKIE_DOMAIN);
}
} else {
if ($cookie_lang) {
setcookie('wpcs_variant_' . COOKIEHASH, '', time() - 30000000, COOKIEPATH, COOKIE_DOMAIN);
}
if (
$wpcs_options['wpcs_browser_redirect'] != 0 &&
! $is_robot &&
! empty($_SERVER['HTTP_ACCEPT_LANGUAGE']) &&
$wpcs_browser_lang = wpcs_get_prefered_language($_SERVER['HTTP_ACCEPT_LANGUAGE'], $wpcs_options['wpcs_used_langs'], $wpcs_options['wpcs_auto_language_recong'])
) {
if ($wpcs_options['wpcs_browser_redirect'] == 2) {
$wpcs_target_lang = $wpcs_browser_lang;
$wpcs_direct_conversion_flag = true;
} else {
$wpcs_redirect_to = $wpcs_browser_lang;
}
}
}
}
if ($wpcs_options['wpcs_search_conversion'] == 2 ||
($wpcs_target_lang && $wpcs_options['wpcs_search_conversion'] == 1)
) {
wpcs_apply_filter_search_rule();
}
if ($wpcs_target_lang && $wpcs_options['wpcs_use_cookie_variant'] != 0 && $cookie_lang != $wpcs_target_lang) {
setcookie('wpcs_variant_' . COOKIEHASH, $wpcs_target_lang, time() + 30000000, COOKIEPATH, COOKIE_DOMAIN);
}
}
/**
* 载入繁简转换表.
*
* 出于节省内存考虑, 本插件并不总是载入繁简转换表. 而仅在繁简转换页面才这样做.
*/
function wpcs_load_conversion_table() {
global $wpcs_options;
if ( ! empty($wpcs_options['wpcs_no_conversion_ja']) || ! empty($wpcs_options['wpcs_no_conversion_tag'])) {
if ( ! function_exists('str_get_html')) {
require_once(__DIR__ . '/simple_html_dom.php');
}
}
global $zh2Hans;
if ($zh2Hans == false) {
global $zh2Hant, $zh2TW, $zh2CN, $zh2SG, $zh2HK;
require_once(dirname(__FILE__) . '/ZhConversion.php');
if (file_exists(WP_CONTENT_DIR . '/extra_zhconversion.php')) {
require_once(WP_CONTENT_DIR . '/extra_zhconversion.php');
}
}
}
/**
* 进行繁简转换. 加载若干filter转换页面内容和内部链接
*
*/
function wpcs_do_conversion() {
global $wpcs_direct_conversion_flag, $wpcs_options;
wpcs_load_conversion_table();
add_action('wp_head', 'wpcs_header');
if ( ! $wpcs_direct_conversion_flag) {
remove_action('wp_head', 'rel_canonical');
add_action('wp_head', 'wpcs_rel_canonical');
//add_filter('the_permalink', 'wpcs_link_conversion');
add_filter('post_link', 'wpcs_link_conversion');
add_filter('month_link', 'wpcs_link_conversion');
add_filter('day_link', 'wpcs_link_conversion');
add_filter('year_link', 'wpcs_link_conversion');
add_filter('page_link', 'wpcs_link_conversion');
add_filter('tag_link', 'wpcs_link_conversion');
add_filter('author_link', 'wpcs_link_conversion');
add_filter('category_link', 'wpcs_link_conversion');
add_filter('feed_link', 'wpcs_link_conversion');
add_filter('attachment_link', 'wpcs_link_conversion');
add_filter('search_feed_link', 'wpcs_link_conversion');
add_filter('category_feed_link', 'wpcs_fix_link_conversion');
add_filter('tag_feed_link', 'wpcs_fix_link_conversion');
add_filter('author_feed_link', 'wpcs_fix_link_conversion');
add_filter('post_comments_feed_link', 'wpcs_fix_link_conversion');
add_filter('get_comments_pagenum_link', 'wpcs_fix_link_conversion');
add_filter('get_comment_link', 'wpcs_fix_link_conversion');
add_filter('attachment_link', 'wpcs_cancel_link_conversion');
add_filter('trackback_url', 'wpcs_cancel_link_conversion');
add_filter('get_pagenum_link', 'wpcs_pagenum_link_fix');
add_filter('redirect_canonical', 'wpcs_cancel_incorrect_redirect', 10, 2);
}
if ( ! empty($wpcs_options['wpcs_no_conversion_ja']) || ! empty($wpcs_options['wpcs_no_conversion_tag'])) {
add_filter('the_content', 'wpcs_no_conversion_filter', 15);
add_filter('the_content_rss', 'wpcs_no_conversion_filter', 15);
}
if ($wpcs_options['wpcs_use_fullpage_conversion'] == 1) {
@ob_start('wpcs_ob_callback');
/*
function wpcs_ob_end() {
while( @ob_end_flush() );
}
add_action('shutdown', 'wpcs_ob_end');
*/
//一般不需要这段代码, Wordpress默认在shutdown时循环调用ob_end_flush关闭所有缓存.
return;
}
add_filter('the_content', 'zhconversion2', 20);
add_filter('the_content_rss', 'zhconversion2', 20);
add_filter('the_excerpt', 'zhconversion2', 20);
add_filter('the_excerpt_rss', 'zhconversion2', 20);
add_filter('the_title', 'zhconversion');
add_filter('comment_text', 'zhconversion');
add_filter('bloginfo', 'zhconversion');
add_filter('the_tags', 'zhconversion_deep');
add_filter('term_links-post_tag', 'zhconversion_deep');
add_filter('wp_tag_cloud', 'zhconversion');
add_filter('the_category', 'zhconversion');
add_filter('list_cats', 'zhconversion');
add_filter('category_description', 'zhconversion');
add_filter('single_cat_title', 'zhconversion');
add_filter('single_post_title', 'zhconversion');
add_filter('bloginfo_rss', 'zhconversion');
add_filter('the_title_rss', 'zhconversion');
add_filter('comment_text_rss', 'zhconversion');
}
/**
* 在html的body标签class属性里添加当前中文语言代码
* thanks to chad luo.
* @since 1.1.13
*
*/
function wpcs_body_class($classes) {
global $wpcs_target_lang;
$classes[] = $wpcs_target_lang ? $wpcs_target_lang : "zh";
return $classes;
}
add_filter("body_class", "wpcs_body_class");
/**
* 自动修改html tag 的 lang=""标签为当前中文语言
* @since 1.0
*
*/
function wpcs_locale($output, $doctype = 'html') {
global $wpcs_target_lang, $wpcs_langs;
$lang = get_bloginfo('language');
if ($wpcs_target_lang && strpos($lang, 'zh-') === 0) {
$lang = $wpcs_langs[$wpcs_target_lang][3];
$output = preg_replace('/lang="[^"]+"/', "lang=\"{$lang}\"", $output);
}
return $output;
}
add_filter('language_attributes', 'wpcs_locale');
/**
* add a wpcs_NC button to html editor toolbar.
* @since 1.1.14
*/
function wpcs_appthemes_add_quicktags() {
global $wpcs_options;
if ( ! empty($wpcs_options) && ! empty($wpcs_options['wpcs_no_conversion_qtag']) && wp_script_is('quicktags')) {
?>
<script type="text/javascript">
//<![CDATA[
QTags.addButton('eg_wpcs_nc', 'wpcs_NC', '<!--wpcs_NC_START-->', '<!--wpcs_NC_END-->', null, 'WP Chinese Switcher DO-NOT Convert Tag', 120);
//]]>
</script>
<?php
}
}
add_action('admin_print_footer_scripts', 'wpcs_appthemes_add_quicktags');
/**
* Function executed when plugin is activated
*
* add or update 'wpcs_option' in wp_option table of the wordpress database
* your current settings will be reserved if you have installed this plugin before.
*
*/
function wpcs_activate() {
$current_options = (array) get_option('wpcs_options');
$wpcs_options = array(
'wpcs_search_conversion' => 1,
'wpcs_used_langs' => array('zh-hans', 'zh-hant', 'zh-cn', 'zh-hk', 'zh-sg', 'zh-tw'),
'wpcs_browser_redirect' => 0,
'wpcs_auto_language_recong' => 0,
'wpcs_flag_option' => 1,
'wpcs_use_cookie_variant' => 0,
'wpcs_use_fullpage_conversion' => 1,
'wpcs_trackback_plugin_author' => 0,
'wpcs_add_author_link' => 0,
'wpcs_use_permalink' => 0,
'wpcs_no_conversion_tag' => '',
'wpcs_no_conversion_ja' => 0,
'wpcs_no_conversion_qtag' => 0,
'wpcs_engine' => 'mediawiki', // alternative: opencc
'nctip' => '',
);
foreach ($current_options as $key => $value) {
if (isset($wpcs_options[$key])) {
$wpcs_options[$key] = $value;
}
}
foreach (
array(
'zh-hans' => "hanstip",
'zh-hant' => "hanttip",
'zh-cn' => "cntip",
'zh-hk' => "hktip",
'zh-sg' => "sgtip",
'zh-tw' => "twtip",
'zh-my' => "mytip",
'zh-mo' => "motip"
) as $lang => $tip
) {
if ( ! empty($current_options[$tip])) {
$wpcs_options[$tip] = $current_options[$tip];
}
}
//WP will automaticlly add a option if it doesn't exists( when this plugin is firstly being installed).
update_option('wpcs_options', $wpcs_options);
}
register_activation_hook(__FILE__, 'wpcs_activate');
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