/
Plugin.php
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/
Plugin.php
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<?php
if (!defined('__TYPECHO_ROOT_DIR__')) exit;
/**
* 文章部分加密
*
* @package PartiallyPassword
* @author wuxianucw
* @version 3.1.2
* @link https://ucw.moe
*/
class PartiallyPassword_Plugin implements Typecho_Plugin_Interface {
/**
* 激活插件
*
* @access public
* @return void
* @throws Typecho_Plugin_Exception
*/
public static function activate() {
Typecho_Plugin::factory('Widget_Abstract_Contents')->filter = array('PartiallyPassword_Plugin', 'render');
Typecho_Plugin::factory('Widget_Contents_Post_Edit')->getDefaultFieldItems = array('PartiallyPassword_Plugin', 'pluginFields');
Typecho_Plugin::factory('Widget_Archive')->singleHandle = array('PartiallyPassword_Plugin', 'handleSubmit');
Typecho_Plugin::factory('Widget_Archive')->header = array('PartiallyPassword_Plugin', 'header');
Typecho_Plugin::factory('Widget_Archive')->footer = array('PartiallyPassword_Plugin', 'footer');
}
/**
* 禁用插件
*
* @static
* @access public
* @return void
* @throws Typecho_Plugin_Exception
*/
public static function deactivate() {}
/**
* 获取插件配置面板
*
* @access public
* @param Typecho_Widget_Helper_Form $form 配置面板
* @return void
*/
public static function config(Typecho_Widget_Helper_Form $form) {
/** Referer 检查 */
$form->addInput(new Typecho_Widget_Helper_Form_Element_Select(
'checkReferer',
array(0 => '关闭', 1 => '开启'),
1,
_t('Referer 检查'),
'若开启，将对每个密码请求进行 Referer 检查。'
));
/** 额外 Markdown 标记 */
$form->addInput(new Typecho_Widget_Helper_Form_Element_Select(
'extraMdToken',
array(0 => '开启', 1 => '关闭'),
0,
_t('额外 Markdown 标记'),
'若开启，对于 Markdown 格式的文章，将在每个加密块首尾插入 <code>!!!</code> 标记。本配置为兼容性配置，' .
'对于 Typecho 1.1 默认的 HyperDown 解析器，需要保持开启以确保 HTML 生效。如果您在使用过程中发现加密块' .
'前后有多余的 <code>!!!</code> 标记，请尝试将本配置项设置为关闭。'
));
/** 自定义页头 HTML */
$default = <<<TEXT
<style>
.pp-block {text-align: center; border-radius:3px; background-color: rgba(0, 0, 0, 0.45); padding: 20px 0 20px 0;}
.pp-block>form>input {height: 24px; border: 1px solid #fff; background-color: transparent; width: 50%; border-radius: 3px; color: #fff; text-align: center;}
.pp-block>form>input::placeholder{color: #fff;}
.pp-block>form>input::-webkit-input-placeholder{color: #fff;}
.pp-block>form>input::-moz-placeholder{color: #fff;}
.pp-block>form>input:-moz-placeholder{color: #fff;}
.pp-block>form>input:-ms-input-placeholder{color: #fff;}
</style>
TEXT;
$tips = <<<TEXT
将插入在所有页面的页头（header）。
TEXT;
$form->addInput(new Typecho_Widget_Helper_Form_Element_Textarea('header', NULL, $default, _t('自定义页头 HTML'), $tips));
/** 自定义页脚 HTML */
$default = <<<TEXT
<script>
// Powered by wuxianucw
console.log('PartiallyPassword is enabled.');
</script>
TEXT;
$tips = <<<TEXT
将插入在所有页面的页脚（footer）。
TEXT;
$form->addInput(new Typecho_Widget_Helper_Form_Element_Textarea('footer', NULL, $default, _t('自定义页脚 HTML'), $tips));
/** 密码区域 HTML */
$default = <<<TEXT
<div class="pp-block">
<form action="{targetUrl}" method="post" style="margin: 0;">
<input name="partiallyPassword" type="password" placeholder="{additionalContent}">
<input name="pid" type="hidden" value="{id}">
</form>
</div>
TEXT;
$tips = <<<TEXT
密码区域的HTML。可以使用的变量包括：
<ul>
<li><code>{id}</code>：当前加密块 ID</li>
<li><code>{additionalContent}</code>：附加信息</li>
<li><code>{currentPage}</code>：当前页面 URL</li>
<li><code>{cid}</code>：当前日志 ID</li>
<li><code>{targetUrl}</code>：POST 提交接口页面URL</li>
</ul>
TEXT;
$form->addInput(new Typecho_Widget_Helper_Form_Element_Textarea('placeholder', NULL, $default, _t('密码区域 HTML'), $tips));
}
/**
* 个人用户的配置面板
*
* @access public
* @param Typecho_Widget_Helper_Form $form
* @return void
*/
public static function personalConfig(Typecho_Widget_Helper_Form $form) {}
/**
* 自定义输出header
*
* @access public
* @param string $header
* @param Widget_Archive $archive
* @return void
*/
public static function header($header, Widget_Archive $archive) {
@$header_html = Helper::options()->plugin('PartiallyPassword')->header;
if ($header_html) echo $header_html;
}
/**
* 自定义输出footer
*
* @access public
* @param Widget_Archive $archive
* @return void
*/
public static function footer(Widget_Archive $archive) {
@$footer_html = Helper::options()->plugin('PartiallyPassword')->footer;
if ($footer_html) echo $footer_html;
}
/**
* 取得请求发送的密码
*
* @access private
* @param mixed $cid
* @param mixed $pid
* @param mixed $currentCid
* @return string
*/
private static function getRequestPassword($cid, $pid, $currentCid = -1) {
if ($currentCid == -1) $currentCid = $cid;
$request = new Typecho_Request();
$request_pid = isset($request->pid) ? intval($request->pid) : 0;
if ($request->isPost() && isset($request->partiallyPassword) && $request_pid === $pid) {
if (@Helper::options()->plugin('PartiallyPassword')->checkReferer)
if (stripos($request->getReferer(), Helper::options()->rootUrl) !== 0) return;
return (new PasswordHash(8, true))->HashPassword($request->partiallyPassword);
}
return Typecho_Cookie::get("partiallyPassword_{$cid}_{$pid}", '');
}
/**
* 插件实现方法
*
* @access public
* @param array $value
* @param Widget_Abstract_Contents $contents
* @return string
*/
public static function render($value, Widget_Abstract_Contents $contents) {
if ($value['type'] != 'page' && $value['type'] != 'post') return $value;
if (defined('__TYPECHO_ADMIN__')) {
if ($value['authorId'] != $contents->widget('Widget_User')->uid && !$contents->widget('Widget_User')->pass('editor', true))
$value['hidden'] = true;
return $value;
}
$fields = array();
$db = Typecho_Db::get();
$rows = $db->fetchAll($db->select()->from('table.fields')->where('cid = ?', $value['cid']));
foreach ($rows as $row) {
$fields[$row['name']] = $row[$row['type'] . '_value'];
}
$fields = new Typecho_Config($fields);
if ($fields->pp_isEnabled) {
@$pwds = json_decode($fields->pp_passwords, true);
if (!is_array($pwds)) $pwds = array();
array_map('strval', $pwds);
$options = Helper::options()->plugin('PartiallyPassword');
$placeholder = isset($options->placeholder) ? $options->placeholder : '';
$extraMdToken = isset($options->extraMdToken) ? intval($options->extraMdToken) : 0;
if (!$placeholder) $placeholder = '<div><strong style="color:red">请配置密码区域 HTML！</strong></div>';
if ($value['isMarkdown'] && $extraMdToken === 0) $placeholder = "\n!!!\n{$placeholder}\n!!!\n";
$hasher = new PasswordHash(8, true);
$value['text'] = preg_replace_callback(
'/' . self::getShortcodeRegex(array('ppblock', 'ppswitch')) . '/',
function($matches) use ($contents, $value, $pwds, $placeholder, $extraMdToken, $hasher) {
static $id = -1;
if ($matches[1] == '[' && $matches[6] == ']') return substr($matches[0], 1, -1); // 不解析类似 [[ppblock]] 双重括号的代码
$id++;
$attrs = self::shortcodeParseAtts($matches[3]); // 获取短代码的参数
$ex = '';
$pwd_idx = strval($id);
if (is_array($attrs)) {
if (isset($attrs['ex'])) $ex = $attrs['ex'];
if (isset($attrs['pwd'])) $pwd_idx = $attrs['pwd'];
}
$inner = trim($matches[5]);
$input = self::getRequestPassword($value['cid'], $id, $contents->cid);
if ($matches[2] == 'ppswitch') {
if (!$input) {
$placeholder = str_replace(
array('{id}', '{currentPage}', '{cid}', '{additionalContent}', '{targetUrl}'),
array($id, $value['permalink'], $value['cid'], $ex, $value['permalink']),
$placeholder
);
return $placeholder;
}
$succ = false;
$inner = preg_replace_callback(
'/' . self::getShortcodeRegex(array('case')) . '/',
function($matches) use ($pwds, $input, $hasher, &$succ) {
if ($matches[1] == '[' && $matches[6] == ']') return substr($matches[0], 1, -1);
$attrs = self::shortcodeParseAtts($matches[3]);
if (!isset($attrs['pwd']) || !in_array($attrs['pwd'], array_keys($pwds))) return '';
if ($hasher->CheckPassword($pwds[$attrs['pwd']], $input)) {
$succ = true;
return trim($matches[5]);
} else return '';
},
$inner
);
if ($succ) return $inner;
else {
$placeholder = str_replace(
array('{id}', '{currentPage}', '{cid}','{additionalContent}', '{targetUrl}'),
array($id, $value['permalink'], $value['cid'], $ex, $value['permalink']),
$placeholder
);
return $placeholder;
}
}
if (!in_array($pwd_idx, array_keys($pwds))) {
if (isset($pwds['fallback'])) $pwd_idx = 'fallback';
else {
$err = "<div><strong style=\"color:red\">错误：id = {$id} 的加密块未设置密码！</strong></div>";
if ($value['isMarkdown'] && $extraMdToken === 0) $err = "\n!!!\n{$err}\n!!!\n";
return $err;
}
}
if ($input && $hasher->CheckPassword($pwds[$pwd_idx], $input)) return $inner;
else {
$placeholder = str_replace(
array('{id}', '{currentPage}', '{cid}', '{additionalContent}', '{targetUrl}'),
array($id, $value['permalink'], $value['cid'], $ex, $value['permalink']),
$placeholder
);
return $placeholder;
}
},
$value['text']
);
}
return $value;
}
/**
* 插件自定义字段
*
* @access public
* @param mixed $layout
* @return void
*/
public static function pluginFields($layout) {
$layout->addItem(new Typecho_Widget_Helper_Form_Element_Select(
'pp_isEnabled',
array(0 => '关闭', 1 => '开启'),
0,
_t('是否开启文章部分加密'),
'是否对这篇文章启用部分加密功能'
));
$layout->addItem(new Typecho_Widget_Helper_Form_Element_Textarea(
'pp_passwords',
NULL,
'',
_t('密码组'),
'JSON 格式的密码组，参考 <a href="https://github.com/wuxianucw/PartiallyPassword/blob/master/README.md" target="_blank">README</a>'
));
}
/**
* 处理密码提交
*
* @access public
* @param Widget_Archive $archive
* @param Typecho_Db_Query $select
* @return void
*/
public static function handleSubmit(Widget_Archive $archive, Typecho_Db_Query $select) {
if (!$archive->is('page') && !$archive->is('post')) return;
if ($archive->fields->pp_isEnabled && $archive->request->isPost() && isset($archive->request->partiallyPassword)) {
$pid = isset($archive->request->pid) ? intval($archive->request->pid) : 0;
if ($pid < 0) return;
if (@Helper::options()->plugin('PartiallyPassword')->checkReferer)
if (stripos($archive->request->getReferer(), Helper::options()->rootUrl) !== 0) return;
Typecho_Cookie::set(
"partiallyPassword_{$archive->cid}_{$pid}",
(new PasswordHash(8, true))->HashPassword($archive->request->partiallyPassword)
);
}
}
/**
* 获取匹配短代码的正则表达式
*
* @access protected
* @param string $tagnames
* @return string
* @link https://github.com/WordPress/WordPress/blob/master/wp-includes/shortcodes.php
*/
protected static function getShortcodeRegex($tagnames) {
$tagregexp = implode('|', array_map('preg_quote', $tagnames));
// WARNING! Do not change this regex without changing do_shortcode_tag() and strip_shortcode_tag()
// Also, see shortcode_unautop() and shortcode.js.
// phpcs:disable Squiz.Strings.ConcatenationSpacing.PaddingFound -- don't remove regex indentation
return
'\\[' // Opening bracket
. '(\\[?)' // 1: Optional second opening bracket for escaping shortcodes: [[tag]]
. "($tagregexp)" // 2: Shortcode name
. '(?![\\w-])' // Not followed by word character or hyphen
. '(' // 3: Unroll the loop: Inside the opening shortcode tag
. '[^\\]\\/]*' // Not a closing bracket or forward slash
. '(?:'
. '\\/(?!\\])' // A forward slash not followed by a closing bracket
. '[^\\]\\/]*' // Not a closing bracket or forward slash
. ')*?'
. ')'
. '(?:'
. '(\\/)' // 4: Self closing tag ...
. '\\]' // ... and closing bracket
. '|'
. '\\]' // Closing bracket
. '(?:'
. '(' // 5: Unroll the loop: Optionally, anything between the opening and closing shortcode tags
. '[^\\[]*+' // Not an opening bracket
. '(?:'
. '\\[(?!\\/\\2\\])' // An opening bracket not followed by the closing shortcode tag
. '[^\\[]*+' // Not an opening bracket
. ')*+'
. ')'
. '\\[\\/\\2\\]' // Closing shortcode tag
. ')?'
. ')'
. '(\\]?)'; // 6: Optional second closing brocket for escaping shortcodes: [[tag]]
// phpcs:enable
}
/**
* 获取短代码属性数组
*
* @access protected
* @param $text
* @return array|string
* @link https://github.com/WordPress/WordPress/blob/master/wp-includes/shortcodes.php
*/
protected static function shortcodeParseAtts($text) {
$atts = array();
$pattern = self::getShortcodeAttsRegex();
$text = preg_replace( "/[\x{00a0}\x{200b}]+/u", ' ', $text );
if (preg_match_all($pattern, $text, $match, PREG_SET_ORDER)) {
foreach ($match as $m) {
if (!empty($m[1])) {
$atts[strtolower($m[1])] = stripcslashes($m[2]);
} elseif (!empty($m[3])) {
$atts[strtolower($m[3])] = stripcslashes($m[4]);
} elseif (!empty($m[5])) {
$atts[strtolower($m[5])] = stripcslashes($m[6]);
} elseif (isset($m[7]) && strlen($m[7])) {
$atts[] = stripcslashes($m[7]);
} elseif (isset($m[8]) && strlen($m[8])) {
$atts[] = stripcslashes($m[8]);
} elseif (isset($m[9])) {
$atts[] = stripcslashes($m[9]);
}
}
// Reject any unclosed HTML elements
foreach ($atts as &$value) {
if (strpos($value, '<') !== false) {
if (preg_match('/^[^<]*+(?:<[^>]*+>[^<]*+)*+$/', $value) !== 1) {
$value = '';
}
}
}
} else {
$atts = ltrim($text);
}
return $atts;
}
/**
* 获取短代码属性正则表达式
*
* @access private
* @return string
* @link https://github.com/WordPress/WordPress/blob/master/wp-includes/shortcodes.php
*/
private static function getShortcodeAttsRegex() {
return '/([\w-]+)\s*=\s*"([^"]*)"(?:\s|$)|([\w-]+)\s*=\s*\'([^\']*)\'(?:\s|$)|([\w-]+)\s*=\s*([^\s\'"]+)(?:\s|$)|"([^"]*)"(?:\s|$)|\'([^\']*)\'(?:\s|$)|(\S+)(?:\s|$)/';
}
}