84 lines
3.2 KiB
PHP
84 lines
3.2 KiB
PHP
<?php
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/**
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* Plugin Name: Flatlogic SEO Metadata
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* Description: Automatically adds SEO and Social Media (Open Graph, Twitter) metadata to the site.
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* Version: 1.0.0
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*/
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function fl_get_homepage_social_image_url() {
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$front_page_id = (int) get_option('page_on_front');
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if ($front_page_id > 0) {
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if (has_post_thumbnail($front_page_id)) {
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$thumb = wp_get_attachment_image_url(get_post_thumbnail_id($front_page_id), 'full');
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if (!empty($thumb)) {
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return $thumb;
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}
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}
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$front = get_post($front_page_id);
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if ($front instanceof WP_Post && !empty($front->post_content)) {
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if (preg_match('/<img[^>]+src=["\\\']([^"\\\']+)["\\\']/i', $front->post_content, $m)) {
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return $m[1];
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}
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}
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}
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$custom_logo_id = (int) get_theme_mod('custom_logo');
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if ($custom_logo_id) {
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$logo = wp_get_attachment_image_url($custom_logo_id, 'full');
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if (!empty($logo)) {
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return $logo;
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}
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}
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return get_site_icon_url(512) ?: '';
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}
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function fl_seo_metadata_head() {
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if (is_admin()) return;
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$projectDescription = $_SERVER['PROJECT_DESCRIPTION'] ?? '';
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$projectImageUrl = $_SERVER['PROJECT_IMAGE_URL'] ?? '';
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$siteName = get_bloginfo('name');
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$siteDescription = get_bloginfo('description');
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if (is_front_page()) {
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$homepageImage = fl_get_homepage_social_image_url();
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if (!empty($homepageImage)) {
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$projectImageUrl = $homepageImage;
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}
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}
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$metaDescription = !empty($projectDescription) ? $projectDescription : $siteDescription;
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$metaTitle = is_front_page() ? $siteName : get_the_title() . ' | ' . $siteName;
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// Determine the current URL more accurately
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$protocol = ((!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off') || $_SERVER['SERVER_PORT'] == 443) ? "https://" : "http://";
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$host = $_SERVER['HTTP_HOST'] ?? 'localhost';
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$current_url = $protocol . $host . $_SERVER['REQUEST_URI'];
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?>
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<?php if ($metaDescription): ?>
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<!-- Meta description -->
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<meta name="description" content="<?php echo esc_attr($metaDescription); ?>" />
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<!-- Open Graph meta tags -->
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<meta property="og:description" content="<?php echo esc_attr($metaDescription); ?>" />
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<!-- Twitter meta tags -->
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<meta property="twitter:description" content="<?php echo esc_attr($metaDescription); ?>" />
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<?php endif; ?>
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<meta property="og:title" content="<?php echo esc_attr($metaTitle); ?>" />
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<meta property="og:type" content="website" />
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<meta property="og:url" content="<?php echo esc_url($current_url); ?>" />
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<meta property="og:site_name" content="<?php echo esc_attr($siteName); ?>" />
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<meta property="twitter:card" content="summary_large_image" />
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<meta property="twitter:title" content="<?php echo esc_attr($metaTitle); ?>" />
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<?php if ($projectImageUrl): ?>
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<!-- Open Graph image -->
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<meta property="og:image" content="<?php echo esc_url($projectImageUrl); ?>" />
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<!-- Twitter image -->
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<meta property="twitter:image" content="<?php echo esc_url($projectImageUrl); ?>" />
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<?php endif; ?>
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<?php
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}
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add_action('wp_head', 'fl_seo_metadata_head', 1);
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