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gravatar.php
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<?php
/*
Plugin Name: Gravatar反向代理
Plugin URI: https://sendya.me/
Description: Gravatar 反向代理插件可以让 wordpress 将整站的 Gravatar 头像换到不受 gfw 影响的国内镜像站
Author: Sendya
Version: 1.0.4
Author URI: https://sendya.me/
*/
// If this file is called directly, abort.
if ( ! defined( 'WPINC' ) ) {
echo 'Hi there! I\'m just a plugin, not much I can do when called directly.';
exit;
}
Gravatar::get_instance();
// Register hooks that are fired when the plugin is activated, deactivated, and uninstalled, respectively.
register_activation_hook( __FILE__, array( 'Gravatar', 'plugin_activation' ) );
register_deactivation_hook( __FILE__, array( 'Gravatar', 'plugin_deactivation' ) );
register_uninstall_hook( __FILE__, array( 'Gravatar', 'plugin_uninstall' ) );
class Gravatar
{
private $gravatar_setting_default;
private $gravatar_setting_local;
private $gravatar_setting_localurl;
protected static $instance = null;
/**
* Return an instance of this class.
*
* @since 1.0.0
*
* @return object A single instance of this class.
*/
public static function get_instance() {
// If the single instance hasn't been set, set it now.
if ( null == self::$instance ) {
self::$instance = new self;
}
return self::$instance;
}
/**
* 插件激活
*/
public static function plugin_activation()
{
$gravatar_setting_default = esc_attr(get_option('gravatar_setting_default'));
$gravatar_setting_local = esc_attr(get_option('gravatar_setting_local'));
$gravatar_setting_localurl = esc_attr(get_option('gravatar_setting_localurl'));
if ($gravatar_setting_default == null || $gravatar_setting_default == "") {
update_option('gravatar_setting_default', '1');
}
if ($gravatar_setting_local == null || $gravatar_setting_local == "") {
update_option('gravatar_setting_local', '0');
}
if ($gravatar_setting_localurl == null || $gravatar_setting_localurl == "") {
update_option('gravatar_setting_localurl', stripslashes('/wp-content/avatar/'));
}
}
/**
* 插件卸载
*/
public static function plugin_uninstall()
{
delete_option('gravatar_setting_default');
delete_option('gravatar_setting_local');
delete_option('gravatar_setting_localurl');
}
/**
* 插件禁止
*/
public static function plugin_deactivation()
{
// delete_option('gravatar_setting_default');
// delete_option('gravatar_setting_local');
// delete_option('gravatar_setting_localurl');
}
/**
* add admin options menu
*/
public function create_gravatar_admin_page()
{
add_options_page('头像代理设置', 'Gravatar', 'manage_options', 'gravatar_reverse_setting', array( $this, 'gravatar_view'));
}
/**
* construct
*/
private function __construct()
{
add_action('admin_menu', array( $this, 'create_gravatar_admin_page'));
add_filter('get_avatar', array( $this, 'gravatar_setting'));
$this->gravatar_setting_default = esc_attr(get_option('gravatar_setting_default'));
$this->gravatar_setting_local = esc_attr(get_option('gravatar_setting_local'));
$this->gravatar_setting_localurl = esc_attr(get_option('gravatar_setting_localurl'));
// dirname(dirname(__FILE__))
// add_filter( 'pre_option_link_manager_enabled', '__return_true' ); //完全不知道什么时候把启用 友情链接 的代码插入进来的..
}
private static function createDir($dir, $permission = 0777)
{
if (is_dir($dir)) {
return;
}
self::createDir(dirname($dir), $permission);
@mkdir($dir, $permission);
}
function gravatar_setting($avatar)
{
$gravatar_url = '';
switch ($this->gravatar_setting_default) {
case '1':
$gravatar_url = 'ruby-china.org';
break;
case '2':
$gravatar_url = 'gravatar.duoshuo.com';
break;
case '3':
$gravatar_url = "cdn.v2ex.co/gravatar";//该链接为 HTTPS
break;
case '0':
case 'null':
default:
$gravatar_url = 'cn.gravatar.com';
break;
}
$avatar = str_replace(array("www.gravatar.com", "0.gravatar.com", "1.gravatar.com", "2.gravatar.com", "secure.gravatar.com"), $gravatar_url, $avatar);
if ($this->gravatar_setting_local == "1") {
$tmp = strpos($avatar, 'https');
$g = substr($avatar, $tmp, strpos($avatar, "'", $tmp) - $tmp);
$tmp = strpos($g, '/avatar/') + 7;
$f = substr($g, $tmp, strpos($g, "?", $tmp) - $tmp);
$g = substr($g, 0, $tmp) . $f;
$w = home_url();
$e = ABSPATH . $this->gravatar_setting_localurl . $f . '.jpg';
self::createDir(dirname($e));
$t = 604800; //设定 7 天, 单位:秒
if (empty($default)) $default = $w . $this->gravatar_setting_localurl .'default.jpg';
if (!is_file($e) || (time() - filemtime($e)) > $t) // 当头像不存在或者文件超过 7 天才更新
copy(htmlspecialchars_decode($g), $e);
else
$avatar = strtr($avatar, array($g => $w . $this->gravatar_setting_localurl . $f . '.jpg'));
if (filesize($e) < 500) copy($default, $e);
}
return $avatar;
}
/**
* 插件设置页面html
*/
function gravatar_view()
{
if (isset($_POST['submit'])) {
if (wp_verify_nonce($_POST['_wpnonce'], 'gravatar_setting_token')) {
update_option('gravatar_setting_default', stripslashes($_POST['gravatar_setting_default']));
update_option('gravatar_setting_local', stripslashes($_POST['gravatar_setting_local']));
update_option('gravatar_setting_localurl', stripslashes($_POST['gravatar_setting_localurl']));
echo '<div class="updated"><p>保存成功</p></div>';
} else {
echo '<div class="error"><p>保存失败</p></div>';
}
}
?>
<div class="wrap">
<?php screen_icon(); ?>
<h2>Gravatar 设置</h2>
<hr/>
<form action="" method="post" id="gavatar-form">
<?php
$gravatar_setting_localurl = esc_attr(get_option('gravatar_setting_localurl'));
$gravatar_setting_local = esc_attr(get_option('gravatar_setting_local'));
?>
<h3><label>服务器地址设置</label></h3>
<p>当前服务器：<span style="font-weight:bold;"><?php
$gravatar_setting_default = esc_attr(get_option('gravatar_setting_default'));
if ($gravatar_setting_default == "0") {
echo "cn.gavatar.com";
} elseif ($gravatar_setting_default == "1") {
echo "ruby-china.org";
} elseif ($gravatar_setting_default == "2") {
echo "gravatar.duoshuo.com";
} elseif ($gravatar_setting_default == "3") {
echo "cdn.v2ex.co/gravatar";
} ?></span></p>
<p><span>重新设定服务器：</span><br/>
<input type="radio"
name="gravatar_setting_default" <?php if ($gravatar_setting_default == "0") echo "checked"; ?>
value="0"/>gravatar官方默认
<input type="radio"
name="gravatar_setting_default" <?php if ($gravatar_setting_default == "1") echo "checked"; ?>
value="1"/>ruby-china镜像站
<input type="radio"
name="gravatar_setting_default" <?php if ($gravatar_setting_default == "2") echo "checked"; ?>
value="2"/>duoshuo多说镜像站
<input type="radio"
name="gravatar_setting_default" <?php if ($gravatar_setting_default == "3") echo "checked"; ?>
value="3"/><a href="https://cdn.v2ex.co/gravatar" target="_blank">cdn.v2ex.co</a>镜像站
</p>
<h3><label>本地头像缓存</label></h3>
<p>本地缓存路径：<input type="text" style="width:400px;" name="gravatar_setting_localurl" value="<?= $gravatar_setting_localurl ?>"/>(* 必须以 "/" 结尾)<br/>
是否启用：<input type="radio"
name="gravatar_setting_local" <?php if ($gravatar_setting_local == "0") echo "checked"; ?>
value="0"/>禁用
<input type="radio"
name="gravatar_setting_local" <?php if ($gravatar_setting_local == "1") echo "checked"; ?>
value="1"/>启用
</p>
<p><input type="submit" name="submit" value="保存设置" class="button button-primary" /></p>
<?php wp_nonce_field('gravatar_setting_token') ?>
</form>
</div>
<?php
}
}