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<?php |
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/* |
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Plugin Name: EasyFonts |
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Plugin URI: |
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Description: Automatically Host existing google fonts locally on your server |
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Version: 1.1.3 |
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Author: Uzair |
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Author URI: https://easywpstuff.com |
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License: GPL2 |
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*/ |
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|
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// If this file is called directly, abort. |
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if (!defined("WPINC")){ |
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die; |
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} |
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|
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require_once dirname(__FILE__) . '/lib/simple_html_dom.php'; |
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|
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include_once dirname(__FILE__) . '/inc/options.php'; |
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|
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include_once dirname(__FILE__) . '/inc/notices.php'; |
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|
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function get_base_url() { |
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return is_ssl() ? set_url_scheme(wp_upload_dir()['baseurl'], 'https') : wp_upload_dir()['baseurl']; |
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} |
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|
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function wp_get_remote_file($url) { |
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$backtrace = debug_backtrace(); |
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$function_name = isset($backtrace[1]['function']) ? $backtrace[1]['function'] : ''; |
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|
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|
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$response = wp_remote_get($url, array('user-agent' => 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3',)); |
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|
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|
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if (is_wp_error($response)) { |
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add_settings_error($function_name, 'http_error', $response->get_error_message(), 'error'); |
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return false; |
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} |
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|
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|
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return wp_remote_retrieve_body($response); |
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} |
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|
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function easyfont_process_html_with_dom($content, $callback) { |
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// using simple html dom |
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$html = hgfl_str_get_html($content, false, true, 'UTF-8', false, PHP_EOL, ' '); |
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|
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if (empty($html)) { |
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return $content; |
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} |
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|
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$callback($html); |
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|
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$content = $html->save(); |
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return $content; |
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} |
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|
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function easyfonts_process_font_face_declarations($css, $easyfonts_dir) { |
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if (preg_match_all('/@font-face\s*\{([^}]+)\}/', $css, $matches)) { |
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foreach ($matches[1] as $match) { |
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if (preg_match_all('/src\s*:\s*([^;]+);/', $match, $srcs)) { |
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foreach ($srcs[1] as $src) { |
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if (preg_match('/url\(([^)]+)\)/', $src, $url_match)) { |
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$font_url = trim($url_match[1], "'\""); |
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$font_filename = hash('sha256', $font_url, false); |
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$font_filename = substr($font_filename, 0, 10) . '.' . pathinfo($font_url, PATHINFO_EXTENSION); |
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if (!file_exists($easyfonts_dir . '/' . $font_filename)) { |
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$font_data = wp_get_remote_file($font_url); |
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// Save the font file to the 'wp-content/uploads/easyfonts' directory |
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file_put_contents($easyfonts_dir . '/' . $font_filename, $font_data); |
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} |
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// Replace the src property with a local reference to the downloaded font file |
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$finalbase = get_base_url(); |
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$css = str_replace($src, "url('" . $finalbase . "/easyfonts/" . $font_filename . "')", $css); |
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} |
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} |
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} |
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} |
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} |
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return $css; |
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} |
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|
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|
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function easyfont_process_content_link_tag($content) { |
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return easyfont_process_html_with_dom($content, function($html) { |
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// Check if the 'easyfonts' directory exists and is writable |
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$easyfonts_dir = wp_upload_dir() ['basedir'] . '/easyfonts'; |
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if (!wp_mkdir_p($easyfonts_dir)) { |
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return $content; |
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} |
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// Find all <link> tags with a rel attribute of 'stylesheet' and a href attribute that points to a Google Fonts stylesheet |
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foreach ($html->find('link[rel=stylesheet][href*=fonts.googleapis.com]') as $link) { |
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$url = $link->href; |
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if(strpos($url,'//') === 0){ |
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$url = 'https:'.$url; |
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} |
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$decoded_url = rawurldecode(htmlspecialchars_decode($url)); |
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// Generate a local filename for the stylesheet |
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$filename = hash('sha256', $decoded_url, false); |
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$filename = substr($filename, 0, 10) . '.css'; |
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if (!file_exists($easyfonts_dir . '/' . $filename)) { |
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$css = wp_get_remote_file($decoded_url); |
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if (!preg_match_all('/@font-face\s*\{([^}]+)\}/', $css, $matches)) continue; |
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|
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$css = easyfonts_process_font_face_declarations($css, $easyfonts_dir); |
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// Save the modified stylesheet to the 'wp-content/uploads/easyfonts' directory |
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file_put_contents($easyfonts_dir . '/' . $filename, $css); |
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} |
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$finalbasecss = get_base_url(); |
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// Replace the href attribute with a local reference to the downloaded stylesheet |
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$link->href = $finalbasecss . '/easyfonts/' . $filename; |
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} |
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// Return the modified content |
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}); |
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} |
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|
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function easyfont_process_content_import($content) { |
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// using simple html dom |
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return easyfont_process_html_with_dom($content, function($html) { |
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// Check if the 'easyfonts' directory exists and is writable |
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$easyfonts_dir = wp_upload_dir() ['basedir'] . '/easyfonts'; |
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if (!wp_mkdir_p($easyfonts_dir)) { |
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return $content; |
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} |
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// Find all <style> tags with @import statements that import a Google Fonts stylesheet |
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foreach ($html->find('style') as $style) { |
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if (preg_match_all('/@import\s+(url\()?\s*([^\)]+)\s*(\))?/', $style->innertext, $matches)) { |
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foreach ($matches[2] as $match) { |
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if (strpos($match, 'fonts.googleapis.com') !== false) { |
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$url = trim($match, "'\""); |
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if (strpos($url, '//') === 0) { |
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$url = 'https:' . $url; |
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} |
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$decoded_url = rawurldecode(htmlspecialchars_decode($url)); |
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$filename = hash('sha256', $decoded_url, false); |
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$filename = substr($filename, 0, 10) . '.css'; |
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// Check if the stylesheet file already exists |
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if (!file_exists($easyfonts_dir . '/' . $filename)) { |
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$css = wp_get_remote_file($decoded_url); |
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$css = easyfonts_process_font_face_declarations($css, $easyfonts_dir); |
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// Save the modified stylesheet to the 'wp-content/uploads/easyfonts' directory |
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file_put_contents($easyfonts_dir . '/' . $filename, $css); |
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} |
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$finalbasecss = get_base_url(); |
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// Replace the @import statement with a local reference to the downloaded stylesheet |
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$style->innertext = str_replace($match, "" . $finalbasecss . '/easyfonts/' . $filename . "", $style->innertext); |
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} |
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} |
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} |
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} |
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// Return the modified content |
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}); |
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} |
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function easyfonts_remove_resource_hints($content) { |
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// Load the HTML into the Simple HTML DOM library |
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return easyfont_process_html_with_dom($content, function($html) { |
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|
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// Find all <link> elements with the preload, preconnect, or prefetch attributes |
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$links = $html->find('link[rel=preload],link[rel=preconnect],link[rel=dns-prefetch]'); |
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|
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// Loop through the <link> elements |
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foreach($links as $link) { |
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// Check if the <link> element has a href attribute with the fonts.googleapis.com or fonts.gstatic.com domain |
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if (preg_match('/(https:\/\/|\/\/)(fonts\.googleapis\.com|fonts\.gstatic\.com)/', $link->href)) { |
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// Remove the <link> element |
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$link->outertext = ''; |
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} |
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} |
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|
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// Find all <style> elements |
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$styles = $html->find('style'); |
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|
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// Loop through the <style> elements |
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foreach($styles as $style) { |
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// Remove comments that contain the fonts.googleapis.com or fonts.gstatic.com domain |
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if (strpos($style->innertext, 'fonts.googleapis.com') !== false || strpos($style->innertext, 'fonts.gstatic.com') !== false) { |
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$style->innertext = preg_replace('#/\*(?:[^*]*(?:\*(?!/))*)*\*/#','',$style->innertext); |
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} |
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} |
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// Return the modified HTML |
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}); |
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} |
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|
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|
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function easyfont_remove_font_scripts($content) { |
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// Load the HTML string into a Simple HTML DOM object |
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return easyfont_process_html_with_dom($content, function($html) { |
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|
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// Find all `script` elements |
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$scripts = $html->find('script'); |
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foreach($scripts as $script) { |
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// Check if the `script` element contains the `WebFontConfig` or `webfont.js` strings |
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if(strpos($script->innertext, 'WebFontConfig') !== false || strpos($script->innertext, 'webfont.js') !== false) { |
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// Remove the `script` element |
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$script->outertext = ''; |
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} |
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} |
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|
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// Return the modified HTML as a string |
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}); |
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} |
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|
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function easyfont_download_gstatic_fonts($content) { |
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// Create the "easyfonts" directory if it doesn't exist |
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$easyfonts_dir = wp_upload_dir()['basedir'] . '/easyfonts'; |
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if (!wp_mkdir_p($easyfonts_dir)) { |
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return $content; |
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} |
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$content = preg_replace('/(url\s?\(["\']?)\/\/(fonts\.gstatic\.com[^"\']+)/', '$1https://$2', $content); |
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$html = hgfl_str_get_html($content, false, true, 'UTF-8', false, PHP_EOL, ' '); |
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if (empty($html)) { |
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return $content; |
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} |
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foreach ($html->find('style') as $style) { |
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if (preg_match_all('/url\(([^)]+)\)/', $style->innertext, $matches)) { |
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foreach ($matches[1] as $match) { |
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$url = trim($match, "'\""); |
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if(strpos($url,'//') === 0){ |
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$url = 'https:'.$url; |
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} |
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if (strpos($url, 'fonts.gstatic.com') !== false) { |
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$path_parts = pathinfo($url); |
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$extension = isset($path_parts['extension'])?$path_parts['extension']:''; |
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if (empty($extension)) { |
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if(strpos($url,'/l/font') !== false){ |
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$extension = 'svg'; |
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}else{ |
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$extension = 'woff2'; |
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} |
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} |
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$filename = hash('sha256', $url, false); |
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$filename = substr($filename, 0, 10) . '.' . $extension; |
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// Check if the font file already exists |
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if (!file_exists($easyfonts_dir . '/' . $filename)) { |
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$font_data = wp_get_remote_file($url); |
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$file = fopen($easyfonts_dir . '/' . $filename, 'w'); |
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fwrite($file, $font_data); |
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fclose($file); |
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} |
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$finalbase = get_base_url(); |
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$local_url = $finalbase . '/easyfonts/' . $filename; |
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$content = str_replace($url, $local_url, $content); |
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} |
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} |
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} |
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} |
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return $content; |
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} |
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|
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|
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function easy_fonts_combined_callback($buffer) { |
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if (get_option('easyfonts_host_google_fonts_locally_link', false)) { |
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$buffer = easyfont_process_content_link_tag($buffer); |
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} |
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|
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if (get_option('easyfonts_host_google_fonts_locally_import', false)) { |
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$buffer = easyfont_process_content_import($buffer); |
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} |
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|
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if (get_option('easyfonts_remove_inline_css_fontface', false)) { |
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$buffer = easyfont_download_gstatic_fonts($buffer); |
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} |
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|
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if (get_option('easyfonts_remove_resource_hints', false)) { |
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$buffer = easyfonts_remove_resource_hints($buffer); |
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} |
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|
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if (get_option('easyfonts_remove_inline_script_font', false)) { |
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$buffer = easyfont_remove_font_scripts($buffer); |
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} |
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|
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return $buffer; |
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} |
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|
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function easy_fonts_run_template_redirect() { |
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|
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ob_start('easy_fonts_combined_callback', 0, PHP_OUTPUT_HANDLER_REMOVABLE); |
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add_filter( 'wordpress_prepare_output', 'easyfont_run_after_smart_slider', 11 ); |
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add_filter('groovy_menu_final_output', 'easyfont_run_after_smart_slider', 11); |
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|
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|
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} |
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add_action( 'template_redirect', 'easy_fonts_run_template_redirect', 999 ); |
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|
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|
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function easyfont_run_after_smart_slider( $buffer ) { |
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if (get_option('easyfonts_host_google_fonts_locally_link', false)) { |
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$buffer = easyfont_process_content_link_tag( $buffer ); |
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} |
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return $buffer; |
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} |
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|
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function easyfonts_enqueue_options_styles() { |
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if ( 'settings_page_easyfonts' == get_current_screen()->id ) { |
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wp_enqueue_style( 'easyfonts-options-styles', plugin_dir_url( __FILE__ ) . 'assets/style.css', array(), '1.0.0' ); |
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} |
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} |
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add_action( 'admin_enqueue_scripts', 'easyfonts_enqueue_options_styles' ); |
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|
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function easyfonts_settings_link($links) { |
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$settings_link = '<a href="options-general.php?page=easyfonts">Settings</a>'; |
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array_push($links, $settings_link); |
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return $links; |
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} |
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add_filter("plugin_action_links_easyfonts/easyfonts.php", "easyfonts_settings_link"); |
