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Diffstat (limited to 'plugins/jetpack/functions.photon.php')
| -rw-r--r-- | plugins/jetpack/functions.photon.php | 317 |
1 files changed, 0 insertions, 317 deletions
diff --git a/plugins/jetpack/functions.photon.php b/plugins/jetpack/functions.photon.php deleted file mode 100644 index 015d713e..00000000 --- a/plugins/jetpack/functions.photon.php +++ /dev/null @@ -1,317 +0,0 @@ -<?php - -/** - * Generates a Photon URL. - * - * @see http://developer.wordpress.com/docs/photon/ - * - * @param string $image_url URL to the publicly accessible image you want to manipulate - * @param array|string $args An array of arguments, i.e. array( 'w' => '300', 'resize' => array( 123, 456 ) ), or in string form (w=123&h=456) - * @return string The raw final URL. You should run this through esc_url() before displaying it. - */ -function jetpack_photon_url( $image_url, $args = array(), $scheme = null ) { - $image_url = trim( $image_url ); - - if ( ! defined( 'IS_WPCOM' ) || ! IS_WPCOM ) { - /** - * Disables Photon URL processing for local development - * - * @module photon - * - * @since 4.1.0 - * - * @param bool false Result of Jetpack::is_development_mode. - */ - if ( true === apply_filters( 'jetpack_photon_development_mode', Jetpack::is_development_mode() ) ) { - return $image_url; - } - } - - /** - * Allow specific image URls to avoid going through Photon. - * - * @module photon - * - * @since 3.2.0 - * - * @param bool false Should the image be returned as is, without going through Photon. Default to false. - * @param string $image_url Image URL. - * @param array|string $args Array of Photon arguments. - * @param string|null $scheme Image scheme. Default to null. - */ - if ( false !== apply_filters( 'jetpack_photon_skip_for_url', false, $image_url, $args, $scheme ) ) { - return $image_url; - } - - /** - * Filter the original image URL before it goes through Photon. - * - * @module photon - * - * @since 1.9.0 - * - * @param string $image_url Image URL. - * @param array|string $args Array of Photon arguments. - * @param string|null $scheme Image scheme. Default to null. - */ - $image_url = apply_filters( 'jetpack_photon_pre_image_url', $image_url, $args, $scheme ); - /** - * Filter the original Photon image parameters before Photon is applied to an image. - * - * @module photon - * - * @since 1.9.0 - * - * @param array|string $args Array of Photon arguments. - * @param string $image_url Image URL. - * @param string|null $scheme Image scheme. Default to null. - */ - $args = apply_filters( 'jetpack_photon_pre_args', $args, $image_url, $scheme ); - - if ( empty( $image_url ) ) { - return $image_url; - } - - $image_url_parts = @jetpack_photon_parse_url( $image_url ); - - // Unable to parse - if ( ! is_array( $image_url_parts ) || empty( $image_url_parts['host'] ) || empty( $image_url_parts['path'] ) ) { - return $image_url; - } - - if ( is_array( $args ) ){ - // Convert values that are arrays into strings - foreach ( $args as $arg => $value ) { - if ( is_array( $value ) ) { - $args[$arg] = implode( ',', $value ); - } - } - - // Encode values - // See http://core.trac.wordpress.org/ticket/17923 - $args = rawurlencode_deep( $args ); - } - - // Don't photon-ize WPCOM hosted images -- we can serve them up from wpcom directly. - $is_wpcom_image = false; - if ( wp_endswith( strtolower( $image_url_parts['host'] ), '.files.wordpress.com' ) ) { - $is_wpcom_image = true; - if ( isset( $args['ssl'] ) ) { - // Do not send the ssl argument to prevent caching issues - unset( $args['ssl'] ); - } - } - - /** This filter is documented below. */ - $custom_photon_url = apply_filters( 'jetpack_photon_domain', '', $image_url ); - $custom_photon_url = esc_url( $custom_photon_url ); - - // You can't run a Photon URL through Photon again because query strings are stripped. - // So if the image is already a Photon URL, append the new arguments to the existing URL. - // Alternately, if it's a *.files.wordpress.com url, then keep the domain as is. - if ( - in_array( $image_url_parts['host'], array( 'i0.wp.com', 'i1.wp.com', 'i2.wp.com' ) ) - || $image_url_parts['host'] === jetpack_photon_parse_url( $custom_photon_url, PHP_URL_HOST ) - || $is_wpcom_image - ) { - $photon_url = add_query_arg( $args, $image_url ); - return jetpack_photon_url_scheme( $photon_url, $scheme ); - } - - /** - * Allow Photon to use query strings as well. - * By default, Photon doesn't support query strings so we ignore them and look only at the path. - * This setting is Photon Server dependent. - * - * @module photon - * - * @since 1.9.0 - * - * @param bool false Should images using query strings go through Photon. Default is false. - * @param string $image_url_parts['host'] Image URL's host. - */ - if ( ! apply_filters( 'jetpack_photon_any_extension_for_domain', false, $image_url_parts['host'] ) ) { - // Photon doesn't support query strings so we ignore them and look only at the path. - // However some source images are served via PHP so check the no-query-string extension. - // For future proofing, this is a blacklist of common issues rather than a whitelist. - $extension = pathinfo( $image_url_parts['path'], PATHINFO_EXTENSION ); - if ( empty( $extension ) || in_array( $extension, array( 'php', 'ashx' ) ) ) { - return $image_url; - } - } - - $image_host_path = $image_url_parts['host'] . $image_url_parts['path']; - - // Figure out which CDN subdomain to use - srand( crc32( $image_host_path ) ); - $subdomain = rand( 0, 2 ); - srand(); - - /** - * Filters the domain used by the Photon module. - * - * @module photon - * - * @since 3.4.2 - * - * @param string https://i{$subdomain}.wp.com Domain used by Photon. $subdomain is a random number between 0 and 2. - * @param string $image_url URL of the image to be photonized. - */ - $photon_domain = apply_filters( 'jetpack_photon_domain', "https://i{$subdomain}.wp.com", $image_url ); - $photon_domain = trailingslashit( esc_url( $photon_domain ) ); - $photon_url = $photon_domain . $image_host_path; - - /** - * Add query strings to Photon URL. - * By default, Photon doesn't support query strings so we ignore them. - * This setting is Photon Server dependent. - * - * @module photon - * - * @since 1.9.0 - * - * @param bool false Should query strings be added to the image URL. Default is false. - * @param string $image_url_parts['host'] Image URL's host. - */ - if ( isset( $image_url_parts['query'] ) && apply_filters( 'jetpack_photon_add_query_string_to_domain', false, $image_url_parts['host'] ) ) { - $photon_url .= '?q=' . rawurlencode( $image_url_parts['query'] ); - } - - if ( $args ) { - if ( is_array( $args ) ) { - $photon_url = add_query_arg( $args, $photon_url ); - } else { - // You can pass a query string for complicated requests but where you still want CDN subdomain help, etc. - $photon_url .= '?' . $args; - } - } - - if ( isset( $image_url_parts['scheme'] ) && 'https' == $image_url_parts['scheme'] ) { - $photon_url = add_query_arg( array( 'ssl' => 1 ), $photon_url ); - } - - return jetpack_photon_url_scheme( $photon_url, $scheme ); -} -add_filter( 'jetpack_photon_url', 'jetpack_photon_url', 10, 3 ); - -/** - * WordPress.com - * - * If a cropped WP.com-hosted image is the source image, have Photon replicate the crop. - */ -add_filter( 'jetpack_photon_pre_args', 'jetpack_photon_parse_wpcom_query_args', 10, 2 ); - -function jetpack_photon_parse_wpcom_query_args( $args, $image_url ) { - $parsed_url = @parse_url( $image_url ); - - if ( ! $parsed_url ) - return $args; - - $image_url_parts = wp_parse_args( $parsed_url, array( - 'host' => '', - 'query' => '' - ) ); - - if ( '.files.wordpress.com' != substr( $image_url_parts['host'], -20 ) ) - return $args; - - if ( empty( $image_url_parts['query'] ) ) - return $args; - - $wpcom_args = wp_parse_args( $image_url_parts['query'] ); - - if ( empty( $wpcom_args['w'] ) || empty( $wpcom_args['h'] ) ) - return $args; - - // Keep the crop by using "resize" - if ( ! empty( $wpcom_args['crop'] ) ) { - if ( is_array( $args ) ) { - $args = array_merge( array( 'resize' => array( $wpcom_args['w'], $wpcom_args['h'] ) ), $args ); - } else { - $args = 'resize=' . rawurlencode( absint( $wpcom_args['w'] ) . ',' . absint( $wpcom_args['h'] ) ) . '&' . $args; - } - } else { - if ( is_array( $args ) ) { - $args = array_merge( array( 'fit' => array( $wpcom_args['w'], $wpcom_args['h'] ) ), $args ); - } else { - $args = 'fit=' . rawurlencode( absint( $wpcom_args['w'] ) . ',' . absint( $wpcom_args['h'] ) ) . '&' . $args; - } - } - - return $args; -} - -function jetpack_photon_url_scheme( $url, $scheme ) { - if ( ! in_array( $scheme, array( 'http', 'https', 'network_path' ) ) ) { - if ( preg_match( '#^(https?:)?//#', $url ) ) { - return $url; - } - - $scheme = 'http'; - } - - if ( 'network_path' == $scheme ) { - $scheme_slashes = '//'; - } else { - $scheme_slashes = "$scheme://"; - } - - return preg_replace( '#^([a-z:]+)?//#i', $scheme_slashes, $url ); -} - -/** - * A wrapper for PHP's parse_url, prepending assumed scheme for network path - * URLs. PHP versions 5.4.6 and earlier do not correctly parse without scheme. - * - * @see http://php.net/manual/en/function.parse-url.php#refsect1-function.parse-url-changelog - * - * @param string $url The URL to parse - * @param integer $component Retrieve specific URL component - * @return mixed Result of parse_url - */ -function jetpack_photon_parse_url( $url, $component = -1 ) { - if ( 0 === strpos( $url, '//' ) ) { - $url = ( is_ssl() ? 'https:' : 'http:' ) . $url; - } - - return parse_url( $url, $component ); -} - -add_filter( 'jetpack_photon_skip_for_url', 'jetpack_photon_banned_domains', 9, 2 ); -function jetpack_photon_banned_domains( $skip, $image_url ) { - $banned_host_patterns = array( - '/^chart\.googleapis\.com$/', - '/^chart\.apis\.google\.com$/', - '/^graph\.facebook\.com$/', - '/\.fbcdn\.net$/', - '/\.paypalobjects\.com$/', - '/\.dropbox\.com$/', - '/\.cdninstagram\.com$/', - ); - - $host = jetpack_photon_parse_url( $image_url, PHP_URL_HOST ); - - foreach ( $banned_host_patterns as $banned_host_pattern ) { - if ( 1 === preg_match( $banned_host_pattern, $host ) ) { - return true; - } - } - - return $skip; -} - - -/** - * Jetpack Photon - Support Text Widgets. - * - * @access public - * @param string $content Content from text widget. - * @return string - */ -function jetpack_photon_support_text_widgets( $content ) { - if ( class_exists( 'Jetpack_Photon' ) && Jetpack::is_module_active( 'photon' ) ) { - return Jetpack_Photon::filter_the_content( $content ); - } - return $content; -} -add_filter( 'widget_text', 'jetpack_photon_support_text_widgets' ); |