sky/functions.php

<?php
if (!defined('__TYPECHO_ROOT_DIR__')) exit;

define('__TYPECHO_GRAVATAR_PREFIX__', 'https://gravatar.loli.net/avatar/');

function themeConfig($form) {
    echo '<h2>Sky 主题设置</h2>';

    $logoUrl = new Typecho_Widget_Helper_Form_Element_Text('logoUrl', NULL, Helper::options()->themeUrl.'/assets/avatar.png', '站点 LOGO 地址', '在这里填入一个图片 URL 地址, 以在网站标题前加上一个 LOGO');
    $form->addInput($logoUrl);
    
    $realHomepage = new Typecho_Widget_Helper_Form_Element_Text('realHomepage', NULL, NULL, '全站首页', '填入的链接会在导航栏首位显示为「首页」');
    $form->addInput($realHomepage);

    $icpInfo = new Typecho_Widget_Helper_Form_Element_Text('icpInfo', NULL, NULL, 'ICP 备案号', '显示在底部，留空则不显示');
    $form->addInput($icpInfo->addRule('xssCheck', '请不要使用特殊字符'));

    $nisInfo = new Typecho_Widget_Helper_Form_Element_Text('nisInfo', NULL, NULL, '网安备案号', '显示在底部，留空则不显示');
    $form->addInput($nisInfo->addRule('xssCheck', '请不要使用特殊字符'));

    $notification = new Typecho_Widget_Helper_Form_Element_Text('notification', NULL, NULL, '网站公告', '显示在首页，留空则不显示');
    $form->addInput($notification);

    $notificationIcon = new Typecho_Widget_Helper_Form_Element_Text('notificationIcon', NULL, NULL, '网站公告图标', '显示在首页网站公告信息框前的 FontAwesome 图标代码，留空则不显示');
    $form->addInput($notificationIcon);

    $oldPosts = new Typecho_Widget_Helper_Form_Element_Text('oldPosts', NULL, '365', '文章有效期', '单位：天。在此天数之前发布的文章将会显示「这是一篇旧文」的提示。留空则不显示');
    $form->addInput($oldPosts);

    $commentsNotice = new Typecho_Widget_Helper_Form_Element_Text('commentsNotice', NULL, NULL, '评论区公告', '显示在评论区，留空则不显示');
    $form->addInput($commentsNotice);

    $bottomLinks = new Typecho_Widget_Helper_Form_Element_Text('bottomLinks', NULL, NULL, '底部链接', '（需要配合<a href="http://www.imhan.com/archives/typecho-links/" target="_blank">友情链接插件</a>使用）网站底部的链接分类名称');
    $form->addInput($bottomLinks);

    $headerCode = new Typecho_Widget_Helper_Form_Element_Textarea('headerCode', NULL, NULL, '头部代码', '在头部添加的 HTML 代码，可以插入 JavsScript');
    $form->addInput($headerCode);

    $footerCode = new Typecho_Widget_Helper_Form_Element_Textarea('footerCode', NULL, NULL, '页脚代码', '在页脚添加的 HTML 代码，可以插入 JavsScript 代码');
    $form->addInput($footerCode);

    $cunstomCSS = new Typecho_Widget_Helper_Form_Element_Textarea('cunstomCSS', NULL, NULL, '自定义 CSS', '加入自定义的 CSS 代码');
    $form->addInput($cunstomCSS);
}

function themeFields($layout) {
    $headPic = new Typecho_Widget_Helper_Form_Element_Text('headPic', NULL, NULL, '文章头图地址', '仅对文章有效。在这里填入一个图片 URL 地址, 就可以让文章加上头图。留空则不显示头图。');
    $layout->addItem($headPic);

    $pubPlace = new Typecho_Widget_Helper_Form_Element_Text('pubPlace', NULL, NULL, '文章发布地点', '仅对文章有效。在这里输入一个地点的名字，文章头部会显示。留空则不显示发布地点。');
    $layout->addItem($pubPlace);

    $pageIcon = new Typecho_Widget_Helper_Form_Element_Text('pageIcon', NULL, NULL, '页面图标', '仅对非隐藏页面有效。在这里为页面填入一个 fontawesome icon 代码，在菜单栏链接前会显示图标。Fontawesome 是 5.15 版本，参见 <a href="https://fontawesome.com/v5.15/icons" target="_blank">FontAwesome 图标库</a>。留空则不显示图标。');
    $layout->addItem($pageIcon);

    $linkTo = new Typecho_Widget_Helper_Form_Element_Text('linkTo', NULL, NULL, '重定向至', '在这里输入一个 URL，打开该页面或文章时会自动重定向到这个 URL，可以用于定制菜单栏。留空则不重定向。');
    $layout->addItem($linkTo);
}

function exContent($content){

    // 文章内短代码
    $pattern = '/\[(info)\](.*?)\[\s*\/\1\s*\]/';
    $replacement = '
    <div class="alert alert-info fade show shadow" role="alert">
        <span class="alert-inner--icon"><i class="fas fa-info-circle"></i></span>
        <span class="alert-inner--text">$2</span>
    </div>';
    $content = preg_replace($pattern, $replacement, $content);

    $pattern = '/\[(warning)\](.*?)\[\s*\/\1\s*\]/';
    $replacement = '
    <div class="alert alert-warning fade show shadow" role="alert">
        <span class="alert-inner--icon"><i class="fas fa-exclamation-circle"></i></span>
        <span class="alert-inner--text">$2</span>
    </div>';
    $content = preg_replace($pattern, $replacement, $content);

    $pattern = '/\[(danger)\](.*?)\[\s*\/\1\s*\]/';
    $replacement = '
    <div class="alert alert-danger fade show shadow" role="alert">
        <span class="alert-inner--icon"><i class="fas fa-skull-crossbones"></i></span>
        <span class="alert-inner--text">$2</span>
    </div>';
    $content = preg_replace($pattern, $replacement, $content);

    // 文章 TOC 功能
    if (preg_match_all('/<h(\d)>(.*)<\/h\d>/isU', $content, $outarr)){
        $toc_out = "";
        $minlevel = 6;
        for ($key=0; $key<count($outarr[2]); $key++) $minlevel = min($minlevel, $outarr[1][$key]);

        $curlevel = $minlevel-1;
        for ($key=0; $key<count($outarr[2]); $key++) {
            $ta = $content;
            $tb = strpos($ta, $outarr[0][$key]);
            $level = $outarr[1][$key];
            // $content = substr($ta, 0, $tb). "<h{$level} id=\"toc_title{$key}\">{$outarr[2][$key]}</h{$level}>". substr($ta, strlen($outarr[0][$key])+$tb);
            $content = substr($ta, 0, $tb). "<a id=\"toc_title{$key}\" style=\"position:relative; top:-50px\"></a>". substr($ta, $tb);
            // 用伪锚点实现链接偏移。Safari 居然不支持！！
            if ($level > $curlevel) $toc_out.=str_repeat("<ol>\n", $level-$curlevel);
            elseif ($level < $curlevel) $toc_out.=str_repeat("</ol>\n", $curlevel-$level);
            $curlevel = $level;
            $toc_out .= "<li><a href=\"#toc_title{$key}\">{$outarr[2][$key]}</a></li>\n";
        }
        
        $content = "<div id=\"tableOfContents\">{$toc_out}</div>". $content;
    }

    // Fancybox 图片灯箱
    $content = preg_replace("/<img src=\"([^\"]*)\" alt=\"([^\"]*)\" title=\"([^\"]*)\">/i", "<a data-fancybox=\"gallery\" href=\"\\1\" data-caption=\"\\3\"><img src=\"\\1\" alt=\"\\2\" title=\"\\3\"></a>", $content);

    return $content;
}

// 来自插件 WordsCounter
// https://github.com/elatisy/Typecho_WordsCounter
function allOfCharacters() {
    $chars = 0;
    $db = Typecho_Db::get();
    $select = $db ->select('text')
                  ->from('table.contents')
                  ->where('table.contents.status = ?','publish');
    $rows = $db->fetchAll($select);
    foreach ($rows as $row){
        $chars += mb_strlen($row['text'], 'UTF-8');
    }
    $unit = '';
    if ($chars >= 10000) {
        $chars /= 10000;
        $unit = 'W';
    } else if($chars >= 1000) {
        $chars /= 1000;
        $unit = 'K';
    }
    $out = sprintf('%.2lf%s',$chars, $unit);
    echo $out;
}

// 来自插件 IPLocation
function showLocation($ip) {
    require_once 'include/IP/IP.php';
    $addresses = IP::find($ip);
    $address = '';
    if (!empty($addresses)) {
        $addresses = array_unique($addresses);
        $address = implode('', $addresses);
        $address = str_replace('中国', '', $address);
    }
    echo $address;
}

// 来自插件 UserAgent
function getUAImg($type, $name, $title) {
    global $url_img;
    $img = "<img nogallery class='icon-ua' src='" . $url_img . $type . $name . ".svg' title='" . $title . "' alt='" . $title . "' height=16px style='vertical-align:-2px;' />";
    return $img;
}

function showUserAgent($ua) {
    global $url_img;
    $url_img = Helper::options()->themeUrl . '/include/UserAgent/img/';

    /* OS */
    require_once 'include/UserAgent/get_os.php';
    $Os = get_os($ua);
    $OsImg = getUAImg("os/", $Os['code'], $Os['title']);

    /* Browser */
    require_once 'include/UserAgent/get_browser_name.php';
    $Browser = get_browser_name($ua);
    $BrowserImg = getUAImg("browser/", $Browser['code'], $Browser['title']);

    echo "&nbsp;" . $OsImg . "&nbsp;" . $BrowserImg;
}