functions.php

<?php
/**
 * Castle Functions
 * Last Update: 2020/05/14
 */
if (!defined('__TYPECHO_ROOT_DIR__')) exit;
define('CASTLE_ENV', 'dev');

//判断 PHP 版本是否达到要求
if (substr(PHP_VERSION, 0, 3) < '7.0') {
   echo '<h2>PHP版本必须 >= 7.0</h2>';
   die();
}

//不存在的错误
error_reporting(0);

//设置时区 [上海]
//如果时间显示有误请注解
date_default_timezone_set("Asia/Shanghai");

//引用核心文件
require_once __DIR__ . '/core/libs/libs.php';

//常量
define('CASTLE_VERSION', Castle_Libs::getThemeVersion());

//引用文件
Castle_Libs::requireFile(__DIR__ . '/core/libs/', 'php');
$GLOBALS['CastleLang'] = Castle_Lang::getLang();

//向编辑界面添加按钮
Typecho_Plugin::factory('admin/write-post.php')->bottom = array('Castle_Libs', 'addButtons');
Typecho_Plugin::factory('admin/write-page.php')->bottom = array('Castle_Libs', 'addButtons');
//内容解析
Typecho_Plugin::factory('Widget_Abstract_Contents')->markdown = array('Castle_Contents', 'markdown');
Typecho_Plugin::factory('Widget_Abstract_Contents')->contentEx = array('Castle_Contents', 'contentEx');

/**
 * Theme Init
 * 
 * @param $archive  Widget_Archive
 */
function themeInit($archive)
{
   //已经兼容反垃圾
   //Helper::options()->commentsAntiSpam = false; //关闭评论反垃圾(否则与PJAX冲突)


   Helper::options()->commentsMarkdown = true; //启用评论可使用MarkDown语法
   Helper::options()->commentsCheckReferer = false; //关闭检查评论来源URL与文章链接是否一致判断(否则会无法评论)
   Helper::options()->commentsPageBreak = true; //是否开启评论分页
   Helper::options()->commentsPageSize = 5; //评论每页显示条数
   Helper::options()->commentsPageDisplay = 'first'; //默认显示第一页
   Helper::options()->commentsOrder = 'DESC'; //将较新的评论展示在第一页
   Helper::options()->commentsMaxNestingLevels = 999; //最大回复层数
   Helper::options()->commentsHTMLTagAllowed = '<a href=""> <img src=""> <img src="" class=""> <pre> <code> <code class=""> <del>'; //评论允许使用的标签

   //站点配置文件
   if ($_SERVER['REQUEST_METHOD'] == 'GET' && @$_GET["action"] == 'siteConfig') {
      Castle_API::siteConfig();
      die();
   }

   //登录状态
   if ($_SERVER['REQUEST_METHOD'] == 'GET' && @$_GET["action"] == 'loginStatus') {
      Castle_API::loginStatus();
      die();
   }

   //表情配置文件
   if ($_SERVER['REQUEST_METHOD'] == 'GET' && @$_GET["action"] == 'owoConfig') {
      $arr = [
         'setting' => [
            'owoList' => (Castle_OwO::getOwOList()) ? Castle_OwO::getOwOList() : false
         ]
      ];
      echo 'var CastleConfig = ' . json_encode($arr) . ';';
      die();
   }

   //登陆
   if ($_SERVER['REQUEST_METHOD'] == 'POST' && @$_GET["action"] == 'login' && @$_GET['_'] != NULL && Helper::options()->sidebarToolsBar && in_array('login', Helper::options()->sidebarToolsBar)) {
      header('Content-type: application/json');
      echo json_encode((new TypechoLogin())->Login());
      die();
   }

   //退出登录
   if ($_SERVER['REQUEST_METHOD'] == 'GET' && @$_GET["action"] == 'logout' && @$_GET['_'] != NULL && Helper::options()->sidebarToolsBar && in_array('login', Helper::options()->sidebarToolsBar)) {
      header('Content-type: application/json');
      echo json_encode((new TypechoLogin())->Logout());
      die();
   }

   //获取登陆状态
   if ($_SERVER['REQUEST_METHOD'] == 'GET' && @$_GET["action"] == 'hasLogin') {
      Typecho_Widget::widget('Widget_User')->to($user);
      if ($user->hasLogin()) {
         $arr['status'] = true;
      } else {
         $arr['status'] = false;
      }
      header('Content-type: application/json');
      echo json_encode($arr);
      die();
   }

   //获取评论者头像
   if ($_SERVER['REQUEST_METHOD'] == 'GET' && @$_GET["action"] == 'ajax_get_avatar') {
      echo Castle_Avatar::getCommentAvatar($_GET['email'], 100);
      die();
   }
}

/**
 * 自定义字段
 */
function themeFields($layout)
{
   $excerpt = new Typecho_Widget_Helper_Form_Element_Textarea('excerpt', null, null, '文章摘要', '自定义简介摘要，如不填将自动摘取前 100 字。');
   $layout->addItem($excerpt);

   $cover = new Typecho_Widget_Helper_Form_Element_Text('cover', NULL, NULL, _t('文章封面图'), _t('自定义封面，如不填将显示随机封面图。'));
   $layout->addItem($cover);

   //对于魔改的后台模板不保证能正常判断
   preg_match('/write-post.php/', $_SERVER['SCRIPT_NAME'], $post);

   if (@$post[0] == 'write-post.php') {
      $PostType = new Typecho_Widget_Helper_Form_Element_Select(
         'PostType',
         array(
            'post' => '文章(默认)',
            'nopic' => '无图',
            //'dynamic'=>'日常'
         ),
         'post',
         '文章类型',
         '设置发表的文章的类型(仅对文章有效)。'
      );
      $layout->addItem($PostType);
   }

   $showToc = new Typecho_Widget_Helper_Form_Element_Select(
      'showToc',
      [
         '0' => '不显示目录',
         '1' => '显示目录'
      ],
      '0',
      '目录树',
      '是否显示文章/普通页面目录树'
   );
   $layout->addItem($showToc);

   $advancedSettings = new Typecho_Widget_Helper_Form_Element_Textarea(
      'advancedSettings',
      NULL,
      NULL,
      '高级设置',
      '文章/独立页高级设置，如果不懂此有何用请勿填写。'
   );
   $layout->addItem($advancedSettings);
}

/**
 * HTML 压缩
 * 
 * @author LiNPX
 * @link https://www.linpx.com/p/pinghsu-subject-integration-code-compression.html
 */
function compressHtml($html_source)
{
   $chunks = preg_split('/(<!--<nocompress>-->.*?<!--<\/nocompress>-->|<nocompress>.*?<\/nocompress>|<pre.*?\/pre>|<textarea.*?\/textarea>|<script.*?\/script>)/msi', $html_source, -1, PREG_SPLIT_DELIM_CAPTURE);
   $compress = '';
   foreach ($chunks as $c) {
      if (strtolower(substr($c, 0, 19)) == '<!--<nocompress>-->') {
         $c = substr($c, 19, strlen($c) - 19 - 20);
         $compress .= $c;
         continue;
      } else if (strtolower(substr($c, 0, 12)) == '<nocompress>') {
         $c = substr($c, 12, strlen($c) - 12 - 13);
         $compress .= $c;
         continue;
      } elseif (strtolower(substr($c, 0, 4)) == '<pre' || strtolower(substr($c, 0, 9)) == '<textarea') {
         $compress .= $c;
         continue;
      } elseif (strtolower(substr($c, 0, 7)) == '<script' && strpos($c, '//') != false && (strpos($c, "\r") !== false || strpos($c, "\n") !== false)) {
         $tmps = preg_split('/(\r|\n)/ms', $c, -1, PREG_SPLIT_NO_EMPTY);
         $c = '';
         foreach ($tmps as $tmp) {
            if (strpos($tmp, '//') !== false) {
               if (substr(trim($tmp), 0, 2) == '//') {
                  continue;
               }
               $chars = preg_split('//', $tmp, -1, PREG_SPLIT_NO_EMPTY);
               $is_quot = $is_apos = false;
               foreach ($chars as $key => $char) {
                  if ($char == '"' && $chars[$key - 1] != '\\' && !$is_apos) {
                     $is_quot = !$is_quot;
                  } elseif ($char == '\'' && $chars[$key - 1] != '\\' && !$is_quot) {
                     $is_apos = !$is_apos;
                  } elseif ($char == '/' && $chars[$key + 1] == '/' && !$is_quot && !$is_apos) {
                     $tmp = substr($tmp, 0, $key);
                     break;
                  }
               }
            }
            $c .= $tmp;
         }
      }
      $c = preg_replace('/[\\n\\r\\t]+/', ' ', $c);
      $c = preg_replace('/\\s{2,}/', ' ', $c);
      $c = preg_replace('/>\\s</', '> <', $c);
      $c = preg_replace('/\\/\\*.*?\\*\\//i', '', $c);
      $c = preg_replace('/<!--[^!]*-->/', '', $c);
      $compress .= $c;
   }
   return $compress;
}