mirror of
https://github.com/yunluo/gdk.git
synced 2024-04-27 12:22:32 +02:00
311 lines
10 KiB
PHP
311 lines
10 KiB
PHP
<?php
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//加载网站地图xml
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if (gdk_option('gdk_sitemap_xml')) {
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include GDK_ROOT_PATH.'public/sitemap-xml.php';
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include GDK_ROOT_PATH.'public/sitemap.php';
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}
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// 屏蔽蜘蛛爬取作者页面
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if (gdk_option('gdk_no_author_page')) {
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function gdk_no_author_page()
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{
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if (is_author()) {
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wp_no_robots();
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}
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}
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add_action('wp_head', 'gdk_no_author_page');
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}
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//robots.txt优化功能
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if (gdk_option('gdk_robots')) {
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add_filter('robots_txt', 'gdk_robots_txt', 10, 2);
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function gdk_robots_txt($robotext)
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{
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if (gdk_option('gdk_sitemap_xml')) {
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$sitemap = 'Sitemap: '.home_url('/sitemap.xml');
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} else {
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$sitemap = '';
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}
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return "User-agent: *
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Disallow: /wp-admin/
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Disallow: /wp-content/plugins/
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Disallow: /wp-includes/
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Disallow: /*/trackback
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Disallow: /feed
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Disallow: /*/feed
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Disallow: /attachment/
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Disallow: /wp-content/themes/
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{$sitemap}";
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}
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}
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//文章自动内链
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if (gdk_option('gdk_tag_link')) {
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function gdk_tag_link($content)
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{
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$post_tags = get_the_tags();
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if ($post_tags) {
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foreach ($post_tags as $tag) {
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$link = get_tag_link($tag->term_id);
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$keyword = $tag->name;
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$cleankeyword = stripslashes($keyword);
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$url = '<a target="_blank" href="'.$link.'" title="'.str_replace('%s', addcslashes($cleankeyword, '$'), '查看更多关于%s的文章').'">'.addcslashes($cleankeyword, '$').'</a>';
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$regEx = '\'(?!((<.*?)|(<a.*?)))('.$cleankeyword.')(?!(([^<>]*?)>)|([^>]*?</a>))\'s';
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$content = preg_replace($regEx, $url, $content, gdk_option('gdk_tag_num') ?? 5);
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}
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}
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return $content;
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}
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add_filter('the_content', 'gdk_tag_link', 1);
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}
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// 自动添加nofloow
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if (gdk_option('gdk_nofollow')) {
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add_filter('the_content', 'gdk_nofollow');
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add_filter('the_excerpt', 'gdk_nofollow');
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function gdk_nofollow($content)
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{
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return preg_replace_callback('/<a[^>]+/', 'gdk_nofollow_callback', $content);
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}
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function gdk_nofollow_callback($matches)
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{
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$link = $matches[0];
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$site_link = get_bloginfo('url');
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if (false === strpos($link, 'rel')) {
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$link = preg_replace("%(href=\\S(?!{$site_link}))%i", 'rel="nofollow" $1', $link);
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} elseif (preg_match("%href=\\S(?!{$site_link})%i", $link)) {
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$link = preg_replace('/rel=\S(?!nofollow)\S*/i', 'rel="nofollow"', $link);
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}
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return $link;
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}
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}
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//百度主动推送
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if (gdk_option('gdk_baidu_push')) {
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function gdk_baidu_submit($post_ID)
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{
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global $post;
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$bd_submit_site = get_bloginfo('url');
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$bd_submit_token = gdk_option('gdk_baidu_token');
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if (empty($post_ID) || empty($bd_submit_site) || empty($bd_submit_token)) {
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return;
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}
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if (1 == get_post_meta($post_ID, 'gdk_baidu_submit', true)) {
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return;
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}
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$url = get_permalink($post_ID);
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$api = $api = 'http://data.zz.baidu.com/urls?site='.$bd_submit_site.'&token='.$bd_submit_token;
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$status = $post->post_status;
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if ('' != $status && 'publish' != $status) {
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$request = new WP_Http();
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$result = $request->request($api, [
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'method' => 'POST',
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'body' => $url,
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'headers' => 'Content-Type: text/plain',
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]);
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if (is_array($result) && !is_wp_error($result) && '200' == $result['response']['code']) {
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error_log('baidu_submit_result：'.$result['body']);
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$result = json_decode($result['body'], true);
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}
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if (array_key_exists('success', $result)) {
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add_post_meta($post_ID, 'gdk_baidu_submit', 1, true);
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}
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}
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}
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add_action('publish_post', 'gdk_baidu_submit', 0);
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add_action('wp_footer', 'gdk_baidu_auto_push', 500);
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}
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//百度自动推送
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function gdk_baidu_auto_push()
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{
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echo '<script>
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(function(){
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var bp = document.createElement(\'script\');
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var curProtocol = window.location.protocol.split(\':\')[0];
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if (curProtocol === \'https\') {
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bp.src = \'https://zz.bdstatic.com/linksubmit/push.js\';
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}
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else {
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bp.src = \'http://push.zhanzhang.baidu.com/push.js\';
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}
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var s = document.getElementsByTagName("script")[0];
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s.parentNode.insertBefore(bp, s);
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})();
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</script>';
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}
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if (gdk_option('gdk_seo_img')) {
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//给文章图片自动添加alt和title信息
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function gdk_imagesalt($content)
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{
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global $post;
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$pattern = "/<a(.*?)href=('|\")(.*?).(bmp|gif|jpeg|jpg|png)('|\")(.*?)>/i";
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$replacement = '<a$1href=$2$3.$4$5 alt="'.strip_tags($post->post_title).'" title="'.strip_tags($post->post_title).'"$6>';
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$content = preg_replace($pattern, $replacement, $content);
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return $content;
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}
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add_filter('the_content', 'gdk_imagesalt');
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function gdk_image_alt_tag($content)
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{
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global $post;
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preg_match_all('/<img (.*?)\/>/', $content, $images);
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if (!is_null($images)) {
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foreach ($images[1] as $index => $value) {
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$new_img = str_replace('<img', '<img alt="'.strip_tags($post->post_title).'-'.get_option('blogname').'"', $images[0][$index]);
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$content = str_replace($images[0][$index], $new_img, $content);
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}
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}
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return $content;
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}
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add_filter('the_content', 'gdk_image_alt_tag', 99999);
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}
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//关键字
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function gdk_keywords()
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{
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global $s, $post;
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$keywords = '';
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if (is_single()) {
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if (get_the_tags($post->ID)) {
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foreach (get_the_tags($post->ID) as $tag) {
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$keywords .= $tag->name.', ';
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}
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}
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foreach (get_the_category($post->ID) as $category) {
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$keywords .= $category->cat_name.', ';
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}
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$keywords = substr_replace($keywords, '', -2);
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} elseif (is_home() || is_front_page()) {
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$keywords = gdk_option('gdk_keywords');
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} elseif (is_tag()) {
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if (in_string(tag_description(), '@@')) {
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$keywords = gdk_term_meta('tag', 'keyword');
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} else {
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$keywords = single_tag_title('', false);
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}
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} elseif (is_category()) {
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if (in_string(category_description(), '@@')) {
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$keywords = gdk_term_meta('cat', 'keyword');
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} else {
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$keywords = single_cat_title('', false);
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}
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} elseif (is_search()) {
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$keywords = esc_html($s, 1);
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} else {
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$keywords = trim(wp_title('', false));
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}
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if ($keywords) {
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echo "<meta name=\"keywords\" content=\"{$keywords}\">\n";
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}
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}
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add_action('wp_head', 'gdk_keywords');
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//网站描述
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function gdk_description()
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{
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global $s, $post;
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$description = '';
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$blog_name = get_bloginfo('name');
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$excerpt = $post->post_excerpt;
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if (is_singular()) {
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if (!empty($excerpt)) {
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$text = $excerpt;
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} else {
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$text = strip_shortcodes($post->post_content);
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}
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$description = trim(str_replace([
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"\r\n",
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"\r",
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"\n",
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' ',
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' ',
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], ' ', str_replace('"', "'", strip_tags($text))));
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if (!($description)) {
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$description = $blog_name.'-'.trim(wp_title('', false));
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}
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} elseif (is_home() || is_front_page()) {
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$description = gdk_option('gdk_description'); // 首頁要自己加
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} elseif (is_tag()) {
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if (in_string(tag_description(), '@@')) {
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$description = $blog_name."'".gdk_term_meta('tag', 'des')."'";
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} else {
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$description = $blog_name."'".single_tag_title('', false)."'";
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}
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} elseif (is_category()) {
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if (in_string(category_description(), '@@')) {
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$description = $blog_name."'".trim(strip_tags(gdk_term_meta('tag', 'des')));
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} else {
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$description = $blog_name."'".trim(strip_tags(category_description()));
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}
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} elseif (is_archive()) {
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$description = $blog_name."'".trim(wp_title('', false))."'";
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} elseif (is_search()) {
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$description = $blog_name.": '".esc_html($s, 1)."' 的搜索結果";
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} else {
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$description = $blog_name."'".trim(wp_title('', false))."'";
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}
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$description = mb_substr($description, 0, 220, 'utf-8');
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echo "<meta name=\"description\" content=\"{$description}\">\n";
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}
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add_action('wp_head', 'gdk_description');
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//添加Open Graph Meta
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function meta_og()
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{
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global $post;
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if (is_single()) {
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if (has_post_thumbnail($post->ID)) {
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$img_src = gdk_thumbnail_src();
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}
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$excerpt = strip_tags($post->post_content);
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$excerpt_more = '';
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if (strlen($excerpt) > 155) {
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$excerpt = substr($excerpt, 0, 155);
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$excerpt_more = ' ...';
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}
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$excerpt = str_replace('"', '', $excerpt);
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$excerpt = str_replace("'", '', $excerpt);
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$excerptwords = preg_split('/[\n\r\t ]+/', $excerpt, -1, PREG_SPLIT_NO_EMPTY);
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array_pop($excerptwords);
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$excerpt = implode(' ', $excerptwords).$excerpt_more; ?>
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<meta name="author" content="Your Name">
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<meta name="description" content="<?php echo $excerpt; ?>">
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<meta property="og:title" content="<?php echo the_title(); ?>">
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<meta property="og:description" content="<?php echo $excerpt; ?>">
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<meta property="og:type" content="article">
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<meta property="og:url" content="<?php echo the_permalink(); ?>">
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<meta property="og:site_name"
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content="<?php echo get_bloginfo('name'); ?>">
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<meta property="og:image" content="<?php ?>">
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<?php
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} else {
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return;
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}
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}
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add_action('wp_head', 'meta_og', 5);
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//评论分页的seo处理
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function gdk_canonical()
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{
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global $post;
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if (get_query_var('paged') > 1) {
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echo "\n";
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echo "<link rel='canonical' href='";
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echo get_permalink($post->ID);
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echo "' />\n";
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echo '<meta name="robots" content="noindex,follow">';
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}
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}
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add_action('wp_head', 'gdk_canonical');
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