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<?php |
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|
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class RabbitLoader_21_CDN |
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{ |
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|
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public $cdn_prefix = ''; |
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public $site_host = ''; |
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|
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public static function init() |
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{ |
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if (!function_exists('is_admin') || is_admin() || RabbitLoader_21_Util_WP::is_login_page()) { |
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return; |
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} |
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$sr = RabbitLoader_21_Public::getSkipReason(); |
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if ($sr == RabbitLoader_21_Public::skip_reason_ep || $sr == RabbitLoader_21_Public::skip_reason_or) { |
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//excluded pages or RL origin pages |
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return; |
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} |
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|
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$cdn = new RabbitLoader_21_CDN(); |
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$cdn->cdn_prefix = get_option('rabbitloader_cdn_prefix'); |
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$cdn->site_host = parse_url(get_site_url())['host']; |
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|
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add_filter('script_loader_src', [$cdn, 'replaceAssetHost'], 10, 1); |
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add_filter('style_loader_src', [$cdn, 'replaceAssetHost'], 10, 1); |
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add_filter('wp_get_attachment_url', [$cdn, 'replaceAssetHost'], 10, 1); |
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add_filter('wp_calculate_image_srcset', function ($sources) use($cdn){ |
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if(!is_admin()) { |
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foreach ($sources as &$source) { |
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if(!empty($source['url'])){ |
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$source['url'] = $cdn->replaceAssetHost($source['url']); |
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} |
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} |
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} |
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return $sources; |
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}, 10, 1); |
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} |
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|
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public function replaceAssetHost($original_src) |
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{ |
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if (empty($this->cdn_prefix)) { |
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return $original_src; |
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} |
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$parsed_url = parse_url($original_src); |
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if (!empty($parsed_url['host']) && $parsed_url['host'] == $this->site_host) { |
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$parsed_url['host'] = $this->cdn_prefix; |
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$parsed_url['scheme'] = "https"; |
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return sprintf( |
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'%s://%s%s%s%s', |
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$parsed_url['scheme'], |
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$parsed_url['host'], |
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$parsed_url['path'], |
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!empty($parsed_url['query']) ? '?' . $parsed_url['query'] : '', |
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!empty($parsed_url['fragment']) ? '#' . $parsed_url['fragment'] : '' |
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); |
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} |
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} |
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} |
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|
