1<?php
  2
  3namespace WPaaS;
  4
  5if ( ! defined( 'ABSPATH' ) ) {
  6
  7	exit;
  8
  9}
 10final class CDN {
 11
 12	use Helpers;
 13	private static $file_ext = [ '7z', 'aac', 'ai', 'asf', 'avi', 'bmp', 'bz2', 'css', 'doc', 'docx', 'eot', 'eps', 'fla', 'flv', 'gif', 'gz', 'ico', 'indd', 'jpeg', 'jpg', 'js', 'm4a', 'm4v', 'mkv', 'mov', 'mp3', 'mp4', 'mpeg', 'mpg', 'oga', 'ogg', 'ogv', 'ogx', 'otf', 'pdf', 'png', 'ppt', 'pptx', 'psd', 'rar', 'rtf', 's7z', 'svg', 'svgz', 'tar', 'tgz', 'tiff', 'ttf', 'txt', 'wav', 'webp', 'woff', 'woff2', 'xls', 'xlsx', 'xml', 'zip', 'zipx' ];
 14
 15	private static $base_url;
 16
 17	private $pattern;
 18
 19	public function __construct() {
 20
 21		self::full_page_cdn_notice();
 22
 23		if ( self::is_wpaas_v2() || ! self::is_enabled() || ( defined('GD_CDN_FULLPAGE') &&  true === GD_CDN_FULLPAGE ) ) {
 24
 25			return;
 26
 27		}
 28
 29		self::set_cdn_base();
 30
 31		if ( empty(self::$base_url) ) {
 32			return;
 33		}
 34
 35		add_action( 'init', function () {
 36
 37			$hosts = [
 38				filter_input( INPUT_SERVER, 'HTTP_HOST' ),
 39				wp_parse_url( home_url(), PHP_URL_HOST ),
 40				wp_parse_url( site_url(), PHP_URL_HOST ),
 41				GD_TEMP_DOMAIN,
 42			];
 43
 44			$preg_quote_callback = function ( $string ) {
 45
 46				return preg_quote( $string, '~' );
 47
 48			};
 49
 50			$this->pattern = sprintf(
 51				'~(?:(?:https?:)?//(?:%s))/(\S+?\.(?:%s))~i',
 52				implode( '|', array_map( $preg_quote_callback, array_unique( array_filter( $hosts ) ) ) ),
 53				implode( '|', array_map( $preg_quote_callback, self::get_file_ext() ) )
 54			);
 55
 56		}, 0 );
 57
 58		add_action( 'template_redirect', [ $this, 'template_redirect' ] );
 59		add_action( 'wp_head',           [ $this, 'wp_head' ], 2 );
 60
 61		add_filter( 'script_loader_src',     [ $this, 'replace_base_url' ] );
 62		add_filter( 'style_loader_src',      [ $this, 'replace_base_url' ] );
 63		add_filter( 'wp_get_attachment_url', [ $this, 'replace_base_url' ] );
 64		add_filter( 'theme_file_uri',        [ $this, 'replace_base_url' ] );
 65		add_filter( 'includes_url',          [ $this, 'replace_base_url' ] );
 66
 67	}
 68
 69	/**
 70	 * @return void
 71	 */
 72	public static function full_page_cdn_notice() {
 73
 74		if ( defined( 'GD_CDN_FULLPAGE' ) && true === GD_CDN_FULLPAGE && Plugin::is_reseller_brand()) {
 75			new Admin\Notice(
 76				self::get_notice_text(),
 77				array( 'notice-success' ),
 78				'activate_plugins',
 79				true
 80			);
 81		}
 82	}
 83
 84	public static function get_cdn_base() {
 85
 86		if ( false === self::get_dc_full_id() || ! defined( 'GD_TEMP_DOMAIN' ) ) {
 87			return;
 88		}
 89
 90		$dc = strtolower( substr( self::get_dc_full_id(), 0, 2 ) );
 91
 92		$domain_suffix = '.secureserver.net';
 93		$temp_domain   = explode( '.', GD_TEMP_DOMAIN );
 94		$new_host      = null;
 95
 96		if ( 'myftpupload' === $temp_domain[2] ) {
 97			$new_host = sprintf( '%scdn1%s', $dc, $domain_suffix );
 98		}
 99
100		if ( 'mwp' === $temp_domain[2] && 'accessdomain' === $temp_domain[3] ) {
101			$new_host = sprintf( '%scdn2%s', $dc, $domain_suffix );
102		}
103
104		if ( empty( $new_host ) ) {
105			return;
106		}
107
108		return sprintf( 'https://%s%s.%s', $temp_domain[0], $temp_domain[1], $new_host );
109	}
110
111	public static function set_cdn_base() {
112
113		$cdn_base = self::get_cdn_base();
114
115		if ( ! empty( $cdn_base ) ) {
116			self::$base_url = $cdn_base;
117		}
118
119	}
120
121	/**
122	 * Return one of DC strings
123	 *
124	 * @return false|string
125	 */
126	public static function get_dc_full_id() {
127		if ( defined('GD_DC_ID') ) {
128			return GD_DC_ID;
129		}
130		if ( ! empty($_ENV['WPAAS_POD']) ) {
131			return $_ENV['WPAAS_POD'];
132		}
133		if ( ! empty($_SERVER['WPAAS_POD']) ) {
134			return $_SERVER['WPAAS_POD'];
135		}
136
137		return false;
138	}
139
140	public static function get_file_ext() {
141
142		return (array) apply_filters( 'wpaas_cdn_file_ext', self::$file_ext );
143
144	}
145
146	public static function get_base_url() {
147
148		return apply_filters( 'wpaas_cdn_base_url', self::$base_url );
149
150	}
151
152	public static function is_enabled( $skip_admin_check = false ) {
153
154		global $pagenow;
155
156		$vip         = defined( 'GD_VIP' ) ? GD_VIP : null;
157		$temp_domain = defined( 'GD_TEMP_DOMAIN' ) ? GD_TEMP_DOMAIN : null;
158		$is_rest     = defined( 'REST_REQUEST' ) ? REST_REQUEST : false;
159		$is_nocache  = (bool) filter_input( INPUT_GET, 'nocache' );
160		$is_gddebug  = (bool) filter_input( INPUT_GET, 'gddebug' );
161		$is_bb       = ! is_null( filter_input( INPUT_GET, 'fl_builder' ) ); // Beaver Builder.
162		$cdn_enabled = (bool) apply_filters( 'wpaas_cdn_enabled', defined( 'GD_CDN_ENABLED' ) ? GD_CDN_ENABLED : false );
163		$is_admin    = (bool) $skip_admin_check ? false : is_admin();
164		$is_login    = ( ! empty( $_SERVER['REQUEST_URI'] ) && wp_parse_url( $_SERVER['REQUEST_URI'], PHP_URL_PATH ) === wp_parse_url( wp_login_url(), PHP_URL_PATH ) );
165		$is_debug	 = defined('GD_WP_DEBUG_CDN') ? GD_WP_DEBUG_CDN : WP_DEBUG;
166
167		return ( $vip && $temp_domain && $cdn_enabled && self::get_file_ext() && ! $is_debug && ! $is_admin && ! $is_login && ! $is_rest && ! $is_nocache && ! $is_gddebug && ! $is_bb );
168
169	}
170
171	public function template_redirect() {
172
173		if ( ! self::is_enabled() || ! $this->pattern ) {
174
175			return;
176
177		}
178
179		ob_start( function ( $content ) {
180
181			$base_url = self::get_base_url();
182
183			return preg_replace( $this->pattern, "{$base_url}/$1", $content );
184
185		} );
186
187	}
188
189	public function wp_head() {
190
191		if ( ! self::is_enabled() ) {
192
193			return;
194
195		}
196
197		$url = wp_parse_url( self::get_base_url() );
198
199		if ( ! empty( $url['scheme'] ) && ! empty( $url['host'] ) ) {
200
201			printf( // xss ok.
202				"<link rel='preconnect' href='%s://%s' crossorigin />\n",
203				$url['scheme'],
204				$url['host']
205			);
206
207		}
208
209	}
210
211	public function replace_base_url( $url ) {
212
213		if ( ! self::is_enabled() || ! $this->pattern ) {
214
215			return $url;
216
217		}
218
219		$base_url = self::get_base_url();
220
221		$url  = preg_replace( $this->pattern, "{$base_url}/$1", $url, -1, $count );
222		$time = Plugin::last_cache_flush_date();
223
224		return ( $count && $time ) ? add_query_arg( 'time', $time, $url ) : $url;
225
226	}
227
228	/**
229	 * Provide the correct wording for the notice
230	 *
231	 * @return string
232	 */
233	public static function get_notice_text() {
234
235		/**
236		 * For GoDaddy customer.
237		 */
238
239		$title = __('Your website just got a boost!');
240		$message = __('We have updated your CDN with new features that make your site faster and safer.');
241
242		$format = '
243                <div>
244                    <div>
245                        <div><strong>'.$title.'</strong></div>
246                        ' . $message . '
247                    </div>
248                </div>
249                ';
250		return $format;
251	}
252
253
254
255
256
257}
258