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images
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img
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js
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archiveorg.php
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archives.php
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crowdsignal.php
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dailymotion.php
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descript.php
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facebook.php
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flickr.php
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getty.php
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gist.php
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googleapps.php
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facebook.php
133 lines
| 1 | <?php |
| 2 | /** |
| 3 | * Facebook embeds |
| 4 | * |
| 5 | * @package automattic/jetpack |
| 6 | */ |
| 7 | |
| 8 | define( 'JETPACK_FACEBOOK_EMBED_REGEX', '#^https?://(www.)?facebook\.com/([^/]+)/(posts|photos)/([^/]+)?#' ); |
| 9 | define( 'JETPACK_FACEBOOK_ALTERNATE_EMBED_REGEX', '#^https?://(www.)?facebook\.com/permalink.php\?([^\s]+)#' ); |
| 10 | define( 'JETPACK_FACEBOOK_PHOTO_EMBED_REGEX', '#^https?://(www.)?facebook\.com/photo.php\?([^\s]+)#' ); |
| 11 | define( 'JETPACK_FACEBOOK_PHOTO_ALTERNATE_EMBED_REGEX', '#^https?://(www.)?facebook\.com/([^/]+)/photos/([^/]+)?#' ); |
| 12 | define( 'JETPACK_FACEBOOK_VIDEO_EMBED_REGEX', '#^https?://(www.)?facebook\.com/(?:video.php|watch\/?)\?([^\s]+)#' ); |
| 13 | define( 'JETPACK_FACEBOOK_VIDEO_ALTERNATE_EMBED_REGEX', '#^https?://(www.)?facebook\.com/([^/]+)/videos/([^/]+)?#' ); |
| 14 | |
| 15 | /* |
| 16 | * Example URL: https://www.facebook.com/VenusWilliams/posts/10151647007373076 |
| 17 | */ |
| 18 | wp_embed_register_handler( 'facebook', JETPACK_FACEBOOK_EMBED_REGEX, 'jetpack_facebook_embed_handler' ); |
| 19 | |
| 20 | /* |
| 21 | * Example URL: https://www.facebook.com/permalink.php?id=222622504529111&story_fbid=559431180743788 |
| 22 | */ |
| 23 | wp_embed_register_handler( 'facebook-alternate', JETPACK_FACEBOOK_ALTERNATE_EMBED_REGEX, 'jetpack_facebook_embed_handler' ); |
| 24 | |
| 25 | /* |
| 26 | * Photos are handled on a different endpoint; e.g. https://www.facebook.com/photo.php?fbid=10151609960150073&set=a.398410140072.163165.106666030072&type=1 |
| 27 | */ |
| 28 | wp_embed_register_handler( 'facebook-photo', JETPACK_FACEBOOK_PHOTO_EMBED_REGEX, 'jetpack_facebook_embed_handler' ); |
| 29 | |
| 30 | /* |
| 31 | * Photos (from pages for example) can be at |
| 32 | */ |
| 33 | wp_embed_register_handler( 'facebook-alternate-photo', JETPACK_FACEBOOK_PHOTO_ALTERNATE_EMBED_REGEX, 'jetpack_facebook_embed_handler' ); |
| 34 | |
| 35 | /* |
| 36 | * Videos |
| 37 | * |
| 38 | * Formats: |
| 39 | * https://www.facebook.com/video.php?v=2836814009877992 |
| 40 | * https://www.facebook.com/watch/?v=2836814009877992 |
| 41 | */ |
| 42 | wp_embed_register_handler( 'facebook-video', JETPACK_FACEBOOK_VIDEO_EMBED_REGEX, 'jetpack_facebook_embed_handler' ); |
| 43 | |
| 44 | /* |
| 45 | * Videos https://www.facebook.com/WhiteHouse/videos/10153398464269238/ |
| 46 | */ |
| 47 | wp_embed_register_handler( 'facebook-alternate-video', JETPACK_FACEBOOK_VIDEO_ALTERNATE_EMBED_REGEX, 'jetpack_facebook_embed_handler' ); |
| 48 | |
| 49 | /** |
| 50 | * Callback to modify output of embedded Facebook posts. |
| 51 | * |
| 52 | * @param array $matches Regex partial matches against the URL passed. |
| 53 | * @param array $attr Attributes received in embed response. |
| 54 | * @param string $url Requested URL to be embedded. |
| 55 | * @return string Facebook embed markup. |
| 56 | */ |
| 57 | function jetpack_facebook_embed_handler( $matches, $attr, $url ) { |
| 58 | // This is a stop-gap solution until Facebook hopefully resolves this ticket |
| 59 | // https://developers.facebook.com/community/threads/1675075423353415/?post_id=1675075426686748 |
| 60 | $extra_styles = 'style="background-color: #fff; display: inline-block;"'; |
| 61 | |
| 62 | if ( |
| 63 | str_contains( $url, 'video.php' ) |
| 64 | || str_contains( $url, '/videos/' ) |
| 65 | || str_contains( $url, '/watch' ) |
| 66 | ) { |
| 67 | $embed = sprintf( |
| 68 | '<div class="fb-video" data-allowfullscreen="true" data-href="%1$s" %2$s></div>', |
| 69 | esc_url( $url ), |
| 70 | $extra_styles |
| 71 | ); |
| 72 | } else { |
| 73 | $width = 552; // As of 01/2017, the default width of Facebook embeds when no width attribute provided. |
| 74 | |
| 75 | global $content_width; |
| 76 | if ( is_numeric( $content_width ) && $content_width > 0 ) { |
| 77 | $width = min( $width, $content_width ); |
| 78 | } |
| 79 | |
| 80 | $embed = sprintf( |
| 81 | '<div class="fb-post" data-href="%1$s" data-width="%2$s" %3$s></div>', |
| 82 | esc_url( $url ), |
| 83 | esc_attr( $width ), |
| 84 | $extra_styles |
| 85 | ); |
| 86 | } |
| 87 | |
| 88 | // Skip rendering scripts in an AMP context. |
| 89 | if ( class_exists( 'Jetpack_AMP_Support' ) && Jetpack_AMP_Support::is_amp_request() ) { |
| 90 | return $embed; |
| 91 | } |
| 92 | |
| 93 | // since Facebook is a faux embed, we need to load the JS SDK in the wpview embed iframe. |
| 94 | if ( |
| 95 | defined( 'DOING_AJAX' ) |
| 96 | && DOING_AJAX |
| 97 | // No need to check for a nonce here, that's already handled by Core further up. |
| 98 | && ! empty( $_POST['action'] ) // phpcs:ignore WordPress.Security.NonceVerification.Missing |
| 99 | && 'parse-embed' === $_POST['action'] // phpcs:ignore WordPress.Security.NonceVerification.Missing |
| 100 | ) { |
| 101 | ob_start(); |
| 102 | wp_scripts()->do_items( array( 'jetpack-facebook-embed' ) ); |
| 103 | $scripts = ob_get_clean(); |
| 104 | return $embed . $scripts; |
| 105 | } else { |
| 106 | wp_enqueue_script( 'jetpack-facebook-embed' ); |
| 107 | return $embed; |
| 108 | } |
| 109 | } |
| 110 | |
| 111 | /** |
| 112 | * Shortcode handler. |
| 113 | * |
| 114 | * @param array $atts Shortcode attributes. |
| 115 | */ |
| 116 | function jetpack_facebook_shortcode_handler( $atts ) { |
| 117 | global $wp_embed; |
| 118 | |
| 119 | if ( empty( $atts['url'] ) ) { |
| 120 | return; |
| 121 | } |
| 122 | |
| 123 | if ( ! preg_match( JETPACK_FACEBOOK_EMBED_REGEX, $atts['url'] ) |
| 124 | && ! preg_match( JETPACK_FACEBOOK_PHOTO_EMBED_REGEX, $atts['url'] ) |
| 125 | && ! preg_match( JETPACK_FACEBOOK_VIDEO_EMBED_REGEX, $atts['url'] ) |
| 126 | && ! preg_match( JETPACK_FACEBOOK_VIDEO_ALTERNATE_EMBED_REGEX, $atts['url'] ) ) { |
| 127 | return; |
| 128 | } |
| 129 | |
| 130 | return $wp_embed->shortcode( $atts, $atts['url'] ); |
| 131 | } |
| 132 | add_shortcode( 'facebook', 'jetpack_facebook_shortcode_handler' ); |
| 133 |