| @@ -1,0 +1,668 @@ | ||
| 1 | +<?php | |
| 2 | +/** | |
| 3 | + * Youtube shortcode | |
| 4 | + * | |
| 5 | + * Contains shortcode + some improvements over the Core Embeds syntax (see http://codex.wordpress.org/Embeds ) | |
| 6 | + * | |
| 7 | + * Examples: | |
| 8 | + * [youtube https://www.youtube.com/watch?v=WVbQ-oro7FQ] | |
| 9 | + * [youtube=http://www.youtube.com/watch?v=wq0rXGLs0YM&fs=1&hl=bg_BG&autohide=1&rel=0] | |
| 10 | + * http://www.youtube.com/watch?v=H2Ncxw1xfck&w=320&h=240&fmt=1&rel=0&showsearch=1&hd=0 | |
| 11 | + * http://www.youtube.com/v/9FhMMmqzbD8?fs=1&hl=en_US | |
| 12 | + * https://www.youtube.com/playlist?list=PLP7HaNDU4Cifov7C2fQM8Ij6Ew_uPHEXW | |
| 13 | + * | |
| 14 | + * @package automattic/jetpack | |
| 15 | + */ | |
| 16 | + | |
| 17 | +if ( ! defined( 'ABSPATH' ) ) { | |
| 18 | + exit( 0 ); | |
| 19 | +} | |
| 20 | + | |
| 21 | +/** | |
| 22 | + * Replaces YouTube embeds with YouTube shortcodes. | |
| 23 | + * | |
| 24 | + * Covers the following formats: | |
| 25 | + * 2008-07-15: | |
| 26 | + * <object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/bZBHZT3a-FA&hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><embed src="http://www.youtube.com/v/bZBHZT3a-FA&hl=en&fs=1" type="application/x-shockwave-flash" allowfullscreen="true" width="425" height="344"></embed></object> | |
| 27 | + * around 2008-06-06 youtube changed their old embed code to this: | |
| 28 | + * <object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/M1D30gS7Z8U&hl=en"></param><embed src="http://www.youtube.com/v/M1D30gS7Z8U&hl=en" type="application/x-shockwave-flash" width="425" height="344"></embed></object> | |
| 29 | + * old style was: | |
| 30 | + * <object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/dGY28Qbj76A&rel=0"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/dGY28Qbj76A&rel=0" type="application/x-shockwave-flash" wmode="transparent" width="425" height="344"></embed></object> | |
| 31 | + * 12-2010: | |
| 32 | + * <object width="640" height="385"><param name="movie" value="http://www.youtube.com/v/3H8bnKdf654?fs=1&hl=en_GB"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/3H8bnKdf654?fs=1&hl=en_GB" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="640" height="385"></embed></object> | |
| 33 | + * 01-2011: | |
| 34 | + * <iframe title="YouTube video player" class="youtube-player" width="640" height="390" src="http://www.youtube.com/embed/Qq9El3ki0_g" frameborder="0" allowFullScreen></iframe> | |
| 35 | + * <iframe class="youtube-player" width="640" height="385" src="http://www.youtube.com/embed/VIDEO_ID" frameborder="0"></iframe> | |
| 36 | + * | |
| 37 | + * @param string $content HTML content. | |
| 38 | + * @return string The content with YouTube embeds replaced with YouTube shortcodes. | |
| 39 | + */ | |
| 40 | +function jetpack_youtube_embed_to_short_code( $content ) { | |
| 41 | + if ( ! is_string( $content ) || ! str_contains( $content, 'youtube.com' ) ) { | |
| 42 | + return $content; | |
| 43 | + } | |
| 44 | + | |
| 45 | + // older codes. | |
| 46 | + $regexp = '!<object(.*?)>.*?<param\s+name=[\'"]movie[\'"]\s+value=[\'"](https?:)?//www\.youtube\.com/v/([^\'"]+)[\'"].*?>.*?</object>!i'; | |
| 47 | + $regexp_ent = htmlspecialchars( $regexp, ENT_NOQUOTES ); | |
| 48 | + $old_regexp = '!<embed(?:\s+\w+="[^"]*")*\s+src="https?(?:\:|�*58;)//www\.youtube\.com/v/([^"]+)"(?:\s+\w+="[^"]*")*\s*(?:/>|>\s*</embed>)!'; | |
| 49 | + $old_regexp_ent = str_replace( '&#0*58;', '&#0*58;|�*58;', htmlspecialchars( $old_regexp, ENT_NOQUOTES ) ); | |
| 50 | + | |
| 51 | + // new code. | |
| 52 | + $ifr_regexp = '!<iframe((?:\s+\w+="[^"]*")*?)\s+src="(https?:)?//(?:www\.)*youtube.com/embed/([^"]+)".*?</iframe>!i'; | |
| 53 | + $ifr_regexp_ent = str_replace( '&#0*58;', '&#0*58;|�*58;', htmlspecialchars( $ifr_regexp, ENT_NOQUOTES ) ); | |
| 54 | + | |
| 55 | + foreach ( compact( 'regexp', 'regexp_ent', 'old_regexp', 'old_regexp_ent', 'ifr_regexp', 'ifr_regexp_ent' ) as $reg => $regexp ) { | |
| 56 | + if ( ! preg_match_all( $regexp, $content, $matches, PREG_SET_ORDER ) ) { | |
| 57 | + continue; | |
| 58 | + } | |
| 59 | + | |
| 60 | + foreach ( $matches as $match ) { | |
| 61 | + /* | |
| 62 | + * Hack, but '?' should only ever appear once, and | |
| 63 | + * it should be for the 1st field-value pair in query string, | |
| 64 | + * if it is present | |
| 65 | + * YouTube changed their embed code. | |
| 66 | + * Example of how it is now: | |
| 67 | + * <object width="640" height="385"><param name="movie" value="http://www.youtube.com/v/aP9AaD4tgBY?fs=1&hl=en_US"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/aP9AaD4tgBY?fs=1&hl=en_US" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="640" height="385"></embed></object> | |
| 68 | + * As shown at the start of function, previous YouTube didn't '?' | |
| 69 | + * the 1st field-value pair. | |
| 70 | + */ | |
| 71 | + if ( in_array( $reg, array( 'ifr_regexp', 'ifr_regexp_ent', 'regexp', 'regexp_ent' ), true ) ) { | |
| 72 | + $params = $match[1]; | |
| 73 | + | |
| 74 | + if ( in_array( $reg, array( 'ifr_regexp_ent', 'regexp_ent' ), true ) ) { | |
| 75 | + $params = html_entity_decode( $params, ENT_QUOTES | ENT_SUBSTITUTE | ENT_HTML401 ); | |
| 76 | + } | |
| 77 | + | |
| 78 | + $params = wp_kses_hair( $params, array( 'http' ) ); | |
| 79 | + | |
| 80 | + $width = isset( $params['width'] ) ? (int) $params['width']['value'] : 0; | |
| 81 | + $height = isset( $params['height'] ) ? (int) $params['height']['value'] : 0; | |
| 82 | + $wh = ''; | |
| 83 | + | |
| 84 | + if ( $width && $height ) { | |
| 85 | + $wh = "&w=$width&h=$height"; | |
| 86 | + } | |
| 87 | + | |
| 88 | + $url = esc_url_raw( "https://www.youtube.com/watch?v={$match[3]}{$wh}" ); | |
| 89 | + } else { | |
| 90 | + $match[1] = str_replace( '?', '&', $match[1] ); | |
| 91 | + | |
| 92 | + $url = esc_url_raw( 'https://www.youtube.com/watch?v=' . html_entity_decode( $match[1], ENT_QUOTES | ENT_SUBSTITUTE | ENT_HTML401 ) ); | |
| 93 | + } | |
| 94 | + | |
| 95 | + $content = str_replace( $match[0], "[youtube $url]", $content ); | |
| 96 | + | |
| 97 | + /** | |
| 98 | + * Fires before the YouTube embed is transformed into a shortcode. | |
| 99 | + * | |
| 100 | + * @module shortcodes | |
| 101 | + * | |
| 102 | + * @since 1.2.0 | |
| 103 | + * | |
| 104 | + * @param string youtube Shortcode name. | |
| 105 | + * @param string $url YouTube video URL. | |
| 106 | + */ | |
| 107 | + do_action( 'jetpack_embed_to_shortcode', 'youtube', $url ); | |
| 108 | + } | |
| 109 | + } | |
| 110 | + | |
| 111 | + return $content; | |
| 112 | +} | |
| 113 | + | |
| 114 | +if ( jetpack_shortcodes_should_hook_pre_kses() ) { | |
| 115 | + add_filter( 'pre_kses', 'jetpack_youtube_embed_to_short_code' ); | |
| 116 | +} | |
| 117 | + | |
| 118 | +/** | |
| 119 | + * Replaces plain-text links to YouTube videos with YouTube embeds. | |
| 120 | + * | |
| 121 | + * @param string $content HTML content. | |
| 122 | + * | |
| 123 | + * @return string The content with embeds instead of URLs | |
| 124 | + */ | |
| 125 | +function jetpack_youtube_link( $content ) { | |
| 126 | + return jetpack_preg_replace_callback_outside_tags( '!(?:\n|\A)https?://(?:www\.)?(?:youtube.com/(?:v/|playlist|watch[/\#?])|youtu\.be/)[^\s]+?(?:\n|\Z)!i', 'jetpack_youtube_link_callback', $content, 'youtube.com/' ); | |
| 127 | +} | |
| 128 | + | |
| 129 | +/** | |
| 130 | + * Callback function for the regex that replaces YouTube URLs with | |
| 131 | + * YouTube embeds. | |
| 132 | + * | |
| 133 | + * @param array $matches An array containing a YouTube URL. | |
| 134 | + */ | |
| 135 | +function jetpack_youtube_link_callback( $matches ) { | |
| 136 | + return "\n" . jetpack_youtube_id( $matches[0] ) . "\n"; | |
| 137 | +} | |
| 138 | + | |
| 139 | +/** | |
| 140 | + * Normalizes a YouTube URL to include a v= parameter and a query string free of encoded ampersands. | |
| 141 | + * | |
| 142 | + * @param string|array $url Youtube URL. | |
| 143 | + * @return string|false The normalized URL or false if input is invalid. | |
| 144 | + */ | |
| 145 | +if ( ! function_exists( 'jetpack_youtube_sanitize_url' ) ) : | |
| 146 | + /** | |
| 147 | + * Clean up Youtube URL to match a single format. | |
| 148 | + * | |
| 149 | + * @param string|array $url Youtube URL. | |
| 150 | + */ | |
| 151 | + function jetpack_youtube_sanitize_url( $url ) { | |
| 152 | + if ( is_array( $url ) && isset( $url['url'] ) ) { | |
| 153 | + $url = $url['url']; | |
| 154 | + } | |
| 155 | + if ( ! is_string( $url ) ) { | |
| 156 | + return false; | |
| 157 | + } | |
| 158 | + | |
| 159 | + $url = trim( $url, ' "' ); | |
| 160 | + $url = trim( $url ); | |
| 161 | + $url = str_replace( array( 'youtu.be/', '/v/', '/shorts/', '#!v=', '&', '&', 'playlist' ), array( 'youtu.be/?v=', '/?v=', '/watch?v=', '?v=', '&', '&', 'videoseries' ), $url ); | |
| 162 | + | |
| 163 | + // Replace any extra question marks with ampersands - the result of a URL like "https://www.youtube.com/v/dQw4w9WgXcQ?fs=1&hl=en_US" being passed in. | |
| 164 | + $query_string_start = strpos( $url, '?' ); | |
| 165 | + | |
| 166 | + if ( false !== $query_string_start ) { | |
| 167 | + $url = substr( $url, 0, $query_string_start + 1 ) . str_replace( '?', '&', substr( $url, $query_string_start + 1 ) ); | |
| 168 | + } | |
| 169 | + | |
| 170 | + return $url; | |
| 171 | + } | |
| 172 | +endif; | |
| 173 | + | |
| 174 | +/** | |
| 175 | + * Converts a YouTube URL into an embedded YouTube video. | |
| 176 | + * | |
| 177 | + * URL can be: | |
| 178 | + * http://www.youtube.com/embed/videoseries?list=PL94269DA08231042B&hl=en_US | |
| 179 | + * http://www.youtube.com/watch#!v=H2Ncxw1xfck | |
| 180 | + * http://www.youtube.com/watch?v=H2Ncxw1xfck | |
| 181 | + * http://www.youtube.com/watch?v=H2Ncxw1xfck&w=320&h=240&fmt=1&rel=0&showsearch=1&hd=0 | |
| 182 | + * http://www.youtube.com/v/jF-kELmmvgA | |
| 183 | + * http://www.youtube.com/v/9FhMMmqzbD8?fs=1&hl=en_US | |
| 184 | + * http://youtu.be/Rrohlqeir5E | |
| 185 | + * https://www.youtube.com/watch?v=GJNxoe-iSb4&list=PLAVZ4NFtZX0fE54mDSqNKym-o_rz-8xmk | |
| 186 | + * | |
| 187 | + * @param string $url Youtube URL. | |
| 188 | + */ | |
| 189 | +function jetpack_youtube_id( $url ) { | |
| 190 | + $id = jetpack_get_youtube_id( $url ); | |
| 191 | + | |
| 192 | + if ( ! $id ) { | |
| 193 | + return sprintf( '<!--%s-->', esc_html__( 'YouTube Error: bad URL entered', 'jetpack' ) ); | |
| 194 | + } | |
| 195 | + | |
| 196 | + $url = jetpack_youtube_sanitize_url( $url ); | |
| 197 | + $url = wp_parse_url( $url ); | |
| 198 | + | |
| 199 | + $thumbnail = "https://i.ytimg.com/vi/$id/hqdefault.jpg"; | |
| 200 | + $video_url = add_query_arg( 'v', $id, 'https://www.youtube.com/watch' ); | |
| 201 | + | |
| 202 | + $args = jetpack_shortcode_youtube_args( $url ); | |
| 203 | + if ( empty( $args ) ) { | |
| 204 | + return sprintf( '<!--%s-->', esc_html__( 'YouTube Error: empty URL args', 'jetpack' ) ); | |
| 205 | + } | |
| 206 | + | |
| 207 | + // Account for URL having both v and list, where jetpack_get_youtube_id() only accounts for one or the other. | |
| 208 | + if ( isset( $args['list'] ) && $args['list'] === $id ) { | |
| 209 | + $id = null; | |
| 210 | + } | |
| 211 | + if ( isset( $args['v'] ) ) { | |
| 212 | + $id = $args['v']; | |
| 213 | + } | |
| 214 | + if ( ! $id && empty( $args['list'] ) ) { | |
| 215 | + return sprintf( '<!--%s-->', esc_html__( 'YouTube Error: missing id and/or list', 'jetpack' ) ); | |
| 216 | + } | |
| 217 | + | |
| 218 | + list( $w, $h ) = jetpack_shortcode_youtube_dimensions( $args ); | |
| 219 | + | |
| 220 | + $params = array( | |
| 221 | + 'rel' => ( isset( $args['rel'] ) && '0' === $args['rel'] ) ? 0 : 1, | |
| 222 | + 'showsearch' => ( isset( $args['showsearch'] ) && '1' === $args['showsearch'] ) ? 1 : 0, // Now deprecated. See https://developers.google.com/youtube/player_parameters#march-29,-2012. | |
| 223 | + 'showinfo' => ( isset( $args['showinfo'] ) && '0' === $args['showinfo'] ) ? 0 : 1, // Now obsolete. See https://developers.google.com/youtube/player_parameters#showinfo. | |
| 224 | + 'iv_load_policy' => ( isset( $args['iv_load_policy'] ) && '3' === $args['iv_load_policy'] ) ? 3 : 1, | |
| 225 | + 'fs' => 1, | |
| 226 | + 'hl' => str_replace( '_', '-', get_locale() ), | |
| 227 | + ); | |
| 228 | + if ( isset( $args['fmt'] ) && (int) $args['fmt'] ) { | |
| 229 | + $params['fmt'] = (int) $args['fmt']; // Apparently an obsolete parameter. Not referenced on https://developers.google.com/youtube/player_parameters. | |
| 230 | + } | |
| 231 | + | |
| 232 | + // The autohide parameter has been deprecated since 2015. See https://developers.google.com/youtube/player_parameters#august-19,-2015. | |
| 233 | + if ( ! isset( $args['autohide'] ) || ( $args['autohide'] < 0 || 2 < $args['autohide'] ) ) { | |
| 234 | + $params['autohide'] = 2; | |
| 235 | + } else { | |
| 236 | + $params['autohide'] = (int) $args['autohide']; | |
| 237 | + } | |
| 238 | + | |
| 239 | + $start = 0; | |
| 240 | + if ( isset( $args['start'] ) ) { | |
| 241 | + $start = (int) $args['start']; | |
| 242 | + } elseif ( isset( $args['t'] ) ) { | |
| 243 | + if ( is_numeric( $args['t'] ) ) { | |
| 244 | + $start = (int) $args['t']; | |
| 245 | + } elseif ( is_string( $args['t'] ) ) { | |
| 246 | + $time_pieces = preg_split( '/(?<=\D)(?=\d+)/', $args['t'] ); | |
| 247 | + | |
| 248 | + foreach ( $time_pieces as $time_piece ) { | |
| 249 | + $int = (int) $time_piece; | |
| 250 | + switch ( substr( $time_piece, - 1 ) ) { | |
| 251 | + case 'h': | |
| 252 | + $start += $int * 3600; | |
| 253 | + break; | |
| 254 | + case 'm': | |
| 255 | + $start += $int * 60; | |
| 256 | + break; | |
| 257 | + case 's': | |
| 258 | + $start += $int; | |
| 259 | + break; | |
| 260 | + } | |
| 261 | + } | |
| 262 | + } | |
| 263 | + } | |
| 264 | + if ( $start ) { | |
| 265 | + $params['start'] = (int) $start; | |
| 266 | + } | |
| 267 | + | |
| 268 | + if ( isset( $args['end'] ) && (int) $args['end'] ) { | |
| 269 | + $params['end'] = (int) $args['end']; | |
| 270 | + } | |
| 271 | + if ( isset( $args['hd'] ) && (int) $args['hd'] ) { | |
| 272 | + $params['hd'] = (int) $args['hd']; // Now obsolete per https://developers.google.com/youtube/player_parameters#march-29,-2012. | |
| 273 | + } | |
| 274 | + if ( isset( $args['vq'] ) && in_array( $args['vq'], array( 'hd720', 'hd1080' ), true ) ) { | |
| 275 | + $params['vq'] = $args['vq']; // Note, this appears to be obsolete. Not referenced on https://developers.google.com/youtube/player_parameters. | |
| 276 | + } | |
| 277 | + if ( isset( $args['cc_load_policy'] ) ) { | |
| 278 | + $params['cc_load_policy'] = 1; | |
| 279 | + } | |
| 280 | + if ( isset( $args['cc_lang_pref'] ) ) { | |
| 281 | + $params['cc_lang_pref'] = preg_replace( '/[^_a-z0-9-]/i', '', $args['cc_lang_pref'] ); | |
| 282 | + } | |
| 283 | + | |
| 284 | + // The wmode parameter appears to be obsolete. Not referenced on https://developers.google.com/youtube/player_parameters. | |
| 285 | + if ( isset( $args['wmode'] ) && in_array( strtolower( $args['wmode'] ), array( 'opaque', 'window', 'transparent' ), true ) ) { | |
| 286 | + $params['wmode'] = $args['wmode']; | |
| 287 | + } else { | |
| 288 | + $params['wmode'] = 'transparent'; | |
| 289 | + } | |
| 290 | + | |
| 291 | + // The theme parameter is obsolete per https://developers.google.com/youtube/player_parameters#august-19,-2015. | |
| 292 | + if ( isset( $args['theme'] ) && in_array( strtolower( $args['theme'] ), array( 'dark', 'light' ), true ) ) { | |
| 293 | + $params['theme'] = $args['theme']; | |
| 294 | + } | |
| 295 | + | |
| 296 | + if ( isset( $args['list'] ) ) { | |
| 297 | + $params['listType'] = 'playlist'; | |
| 298 | + $params['list'] = preg_replace( '|[^_a-z0-9-]|i', '', $args['list'] ); | |
| 299 | + } | |
| 300 | + | |
| 301 | + /** | |
| 302 | + * Allow YouTube videos to start playing automatically. | |
| 303 | + * | |
| 304 | + * @module shortcodes | |
| 305 | + * | |
| 306 | + * @since 2.2.2 | |
| 307 | + * | |
| 308 | + * @param bool false Enable autoplay for YouTube videos. | |
| 309 | + */ | |
| 310 | + if ( apply_filters( 'jetpack_youtube_allow_autoplay', false ) && isset( $args['autoplay'] ) ) { | |
| 311 | + $params['autoplay'] = (int) $args['autoplay']; | |
| 312 | + } | |
| 313 | + | |
| 314 | + $is_amp = class_exists( 'Jetpack_AMP_Support' ) && Jetpack_AMP_Support::is_amp_request(); | |
| 315 | + | |
| 316 | + if ( $is_amp && $id ) { | |
| 317 | + // Note that <amp-youtube> currently is not well suited for playlists that don't have an individual video selected, hence the $id check above. | |
| 318 | + $placeholder = sprintf( | |
| 319 | + '<a href="%1$s" placeholder><amp-img src="%2$s" alt="%3$s" layout="fill" object-fit="cover"><noscript><img src="%2$s" loading="lazy" decoding="async" alt="%3$s"></noscript></amp-img></a>', | |
| 320 | + esc_url( $video_url ), | |
| 321 | + esc_url( $thumbnail ), | |
| 322 | + esc_attr__( 'YouTube Poster', 'jetpack' ) // Would be preferable to provide YouTube video title, but not available in this non-oEmbed context. | |
| 323 | + ); | |
| 324 | + | |
| 325 | + $html_attributes = array(); | |
| 326 | + foreach ( $params as $param_name => $param_value ) { | |
| 327 | + $html_attributes[] = sprintf( | |
| 328 | + 'data-param-%s="%s"', | |
| 329 | + sanitize_key( $param_name ), | |
| 330 | + esc_attr( $param_value ) | |
| 331 | + ); | |
| 332 | + } | |
| 333 | + | |
| 334 | + $html = sprintf( | |
| 335 | + '<amp-youtube data-videoid="%s" %s width="%d" height="%d" layout="responsive">%s</amp-youtube>', | |
| 336 | + esc_attr( $id ), | |
| 337 | + implode( ' ', $html_attributes ), // Note: Escaping done above. | |
| 338 | + esc_attr( $w ), | |
| 339 | + esc_attr( $h ), | |
| 340 | + $placeholder | |
| 341 | + ); | |
| 342 | + } else { | |
| 343 | + // In AMP, the AMP_Iframe_Sanitizer will convert into <amp-iframe> as required. | |
| 344 | + $src = 'https://www.youtube.com/embed'; | |
| 345 | + if ( $id ) { | |
| 346 | + $src .= "/$id"; | |
| 347 | + } | |
| 348 | + $src = add_query_arg( | |
| 349 | + array_merge( | |
| 350 | + array( 'version' => 3 ), | |
| 351 | + $params | |
| 352 | + ), | |
| 353 | + $src | |
| 354 | + ); | |
| 355 | + | |
| 356 | + $layout = $is_amp ? 'layout="responsive" ' : ''; | |
| 357 | + | |
| 358 | + $html = sprintf( | |
| 359 | + '<iframe class="youtube-player" width="%s" height="%s" %ssrc="%s" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>', | |
| 360 | + esc_attr( $w ), | |
| 361 | + esc_attr( $h ), | |
| 362 | + $layout, | |
| 363 | + esc_url( $src ) | |
| 364 | + ); | |
| 365 | + } | |
| 366 | + | |
| 367 | + // Let's do some alignment wonder in a span, unless we're producing a feed. | |
| 368 | + if ( ! is_feed() ) { | |
| 369 | + $alignmentcss = 'text-align:center;'; | |
| 370 | + if ( isset( $args['align'] ) ) { | |
| 371 | + switch ( $args['align'] ) { | |
| 372 | + case 'left': | |
| 373 | + $alignmentcss = "float:left; width:{$w}px; height:{$h}px; margin-right:10px; margin-bottom: 10px;"; | |
| 374 | + break; | |
| 375 | + case 'right': | |
| 376 | + $alignmentcss = "float:right; width:{$w}px; height:{$h}px; margin-left:10px; margin-bottom: 10px;"; | |
| 377 | + break; | |
| 378 | + } | |
| 379 | + } | |
| 380 | + | |
| 381 | + $html = sprintf( | |
| 382 | + '<span class="embed-youtube" style="%s display: block;">%s</span>', | |
| 383 | + esc_attr( $alignmentcss ), | |
| 384 | + $html | |
| 385 | + ); | |
| 386 | + | |
| 387 | + } | |
| 388 | + | |
| 389 | + /** | |
| 390 | + * Format output for Calypso Reader/Notifications/Comments | |
| 391 | + */ | |
| 392 | + if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) { | |
| 393 | + require_once WP_CONTENT_DIR . '/lib/display-context.php'; | |
| 394 | + $context = A8C\Display_Context\get_current_context(); | |
| 395 | + if ( A8C\Display_Context\NOTIFICATIONS === $context ) { | |
| 396 | + return sprintf( | |
| 397 | + '<a href="%1$s" target="_blank" rel="noopener noreferrer"><img src="%2$s" alt="%3$s" /></a>', | |
| 398 | + esc_url( $video_url ), | |
| 399 | + esc_url( $thumbnail ), | |
| 400 | + esc_html__( 'YouTube video', 'jetpack' ) | |
| 401 | + ); | |
| 402 | + } | |
| 403 | + } | |
| 404 | + | |
| 405 | + /** | |
| 406 | + * Filter the YouTube video HTML output. | |
| 407 | + * | |
| 408 | + * @module shortcodes | |
| 409 | + * | |
| 410 | + * @since 1.2.3 | |
| 411 | + * | |
| 412 | + * @param string $html YouTube video HTML output. | |
| 413 | + */ | |
| 414 | + $html = apply_filters( 'video_embed_html', $html ); | |
| 415 | + | |
| 416 | + return $html; | |
| 417 | +} | |
| 418 | + | |
| 419 | +/** | |
| 420 | + * Gets the args present in the YouTube shortcode URL. | |
| 421 | + * | |
| 422 | + * @since 8.0.0 | |
| 423 | + * | |
| 424 | + * @param array $url The parsed URL of the shortcode. | |
| 425 | + * | |
| 426 | + * @return array|false The query args of the URL, or false. | |
| 427 | + */ | |
| 428 | +function jetpack_shortcode_youtube_args( $url ) { | |
| 429 | + $qargs = array(); | |
| 430 | + if ( ! empty( $url['query'] ) ) { | |
| 431 | + wp_parse_str( $url['query'], $qargs ); | |
| 432 | + } else { | |
| 433 | + return false; | |
| 434 | + } | |
| 435 | + | |
| 436 | + $fargs = array(); | |
| 437 | + if ( ! empty( $url['fragment'] ) ) { | |
| 438 | + wp_parse_str( $url['fragment'], $fargs ); | |
| 439 | + } | |
| 440 | + | |
| 441 | + return array_merge( $fargs, $qargs ); | |
| 442 | +} | |
| 443 | + | |
| 444 | +/** | |
| 445 | + * Display the Youtube shortcode. | |
| 446 | + * | |
| 447 | + * @param array $atts Shortcode attributes. | |
| 448 | + * | |
| 449 | + * @return string The rendered shortcode. | |
| 450 | + */ | |
| 451 | +function jetpack_youtube_shortcode( $atts ) { | |
| 452 | + $url = ( isset( $atts[0] ) ) ? ltrim( $atts[0], '=' ) : shortcode_new_to_old_params( $atts ); | |
| 453 | + return jetpack_youtube_id( $url ); | |
| 454 | +} | |
| 455 | +add_shortcode( 'youtube', 'jetpack_youtube_shortcode' ); | |
| 456 | + | |
| 457 | +/** | |
| 458 | + * Gets the dimensions of the [youtube] shortcode. | |
| 459 | + * | |
| 460 | + * Calculates the width and height, taking $content_width into consideration. | |
| 461 | + * | |
| 462 | + * @since 8.0.0 | |
| 463 | + * | |
| 464 | + * @param array $query_args The query args of the URL. | |
| 465 | + * | |
| 466 | + * @return array The width and height of the shortcode. | |
| 467 | + */ | |
| 468 | +function jetpack_shortcode_youtube_dimensions( $query_args ) { | |
| 469 | + $h = null; | |
| 470 | + global $content_width; | |
| 471 | + | |
| 472 | + $input_w = ( isset( $query_args['w'] ) && (int) $query_args['w'] ) ? (int) $query_args['w'] : 0; | |
| 473 | + $input_h = ( isset( $query_args['h'] ) && (int) $query_args['h'] ) ? (int) $query_args['h'] : 0; | |
| 474 | + | |
| 475 | + // If we have $content_width, use it. | |
| 476 | + if ( ! empty( $content_width ) ) { | |
| 477 | + $default_width = (int) $content_width; | |
| 478 | + } else { | |
| 479 | + // Otherwise get default width from the old, now deprecated embed_size_w option. | |
| 480 | + $default_width = (int) get_option( 'embed_size_w' ); | |
| 481 | + } | |
| 482 | + | |
| 483 | + // If we don't know those 2 values use a hardcoded width. | |
| 484 | + if ( empty( $default_width ) ) { | |
| 485 | + $default_width = 640; | |
| 486 | + } | |
| 487 | + | |
| 488 | + if ( $input_w > 0 && $input_h > 0 ) { | |
| 489 | + $w = $input_w; | |
| 490 | + $h = $input_h; | |
| 491 | + } elseif ( 0 === $input_w && 0 === $input_h ) { | |
| 492 | + if ( isset( $query_args['fmt'] ) && (int) $query_args['fmt'] ) { | |
| 493 | + $w = ( ! empty( $content_width ) ? min( $content_width, 480 ) : 480 ); | |
| 494 | + } else { | |
| 495 | + $w = ( ! empty( $content_width ) ? min( $content_width, $default_width ) : $default_width ); | |
| 496 | + $h = ceil( ( $w / 16 ) * 9 ); | |
| 497 | + } | |
| 498 | + } elseif ( $input_w > 0 ) { | |
| 499 | + $w = $input_w; | |
| 500 | + $h = ceil( ( $w / 16 ) * 9 ); | |
| 501 | + } elseif ( isset( $query_args['fmt'] ) && (int) $query_args['fmt'] ) { | |
| 502 | + $w = ( ! empty( $content_width ) ? min( $content_width, 480 ) : 480 ); | |
| 503 | + } else { | |
| 504 | + $w = ( ! empty( $content_width ) ? min( $content_width, $default_width ) : $default_width ); | |
| 505 | + $h = $input_h; | |
| 506 | + } | |
| 507 | + | |
| 508 | + /** | |
| 509 | + * Filter the YouTube player width. | |
| 510 | + * | |
| 511 | + * @module shortcodes | |
| 512 | + * | |
| 513 | + * @since 1.1.0 | |
| 514 | + * | |
| 515 | + * @param int $w Width of the YouTube player in pixels. | |
| 516 | + */ | |
| 517 | + $w = (int) apply_filters( 'youtube_width', $w ); | |
| 518 | + | |
| 519 | + /** | |
| 520 | + * Filter the YouTube player height. | |
| 521 | + * | |
| 522 | + * @module shortcodes | |
| 523 | + * | |
| 524 | + * @since 1.1.0 | |
| 525 | + * | |
| 526 | + * @param int $h Height of the YouTube player in pixels. | |
| 527 | + */ | |
| 528 | + $h = (int) apply_filters( 'youtube_height', $h ); | |
| 529 | + | |
| 530 | + return array( $w, $h ); | |
| 531 | +} | |
| 532 | + | |
| 533 | +/** | |
| 534 | + * For bare URLs on their own line of the form | |
| 535 | + * http://www.youtube.com/v/9FhMMmqzbD8?fs=1&hl=en_US | |
| 536 | + * | |
| 537 | + * @param array $matches Regex partial matches against the URL passed. | |
| 538 | + * @param array $attr Attributes received in embed response. | |
| 539 | + * @param string $url Requested URL to be embedded. | |
| 540 | + */ | |
| 541 | +function wpcom_youtube_embed_crazy_url( $matches, $attr, $url ) { | |
| 542 | + return jetpack_youtube_id( $url ); | |
| 543 | +} | |
| 544 | + | |
| 545 | +/** | |
| 546 | + * Get the regex for Youtube URLs. | |
| 547 | + */ | |
| 548 | +function wpcom_youtube_get_regex() { | |
| 549 | + return '#https?://(?:www\.)?(?:youtube.com/(?:v/|playlist|watch[/\#?])|youtu\.be/).*#i'; | |
| 550 | +} | |
| 551 | + | |
| 552 | +/** | |
| 553 | + * Add a new handler to automatically transform custom Youtube URLs (like playlists) into embeds. | |
| 554 | + */ | |
| 555 | +function wpcom_youtube_embed_crazy_url_init() { | |
| 556 | + // Register the custom handler to provide the better support for the private video. | |
| 557 | + wp_embed_register_handler( 'wpcom_youtube_embed_crazy_url', wpcom_youtube_get_regex(), 'wpcom_youtube_embed_crazy_url' ); | |
| 558 | +} | |
| 559 | +add_action( 'init', 'wpcom_youtube_embed_crazy_url_init' ); | |
| 560 | + | |
| 561 | +/** | |
| 562 | + * Filters the oEmbed result before any HTTP requests are made for YouTube. | |
| 563 | + * | |
| 564 | + * @since 13.9 | |
| 565 | + * | |
| 566 | + * @param null|string $result The UNSANITIZED (and potentially unsafe) HTML that should be used to embed. Default null. | |
| 567 | + * @param string $url The URL that should be inspected for discovery `<link>` tags. | |
| 568 | + * @param array $args oEmbed remote get arguments. | |
| 569 | + * @return null|string The UNSANITIZED (and potentially unsafe) HTML that should be used to embed. | |
| 570 | + * Null if the URL does not belong to the current site. | |
| 571 | + */ | |
| 572 | +function wpcom_youtube_filter_pre_oembed_result( $result, $url, $args ) { | |
| 573 | + // Return early if it's not a YouTube URL. | |
| 574 | + if ( ! preg_match( wpcom_youtube_get_regex(), $url, $matches ) ) { | |
| 575 | + return $result; | |
| 576 | + } | |
| 577 | + | |
| 578 | + // Try to get the oembed data by the Core's approach. | |
| 579 | + $wp_oembed = _wp_oembed_get_object(); | |
| 580 | + $data = $wp_oembed->get_data( $url, $args ); | |
| 581 | + if ( $data ) { | |
| 582 | + /** This filter is documented in wp-includes/class-wp-oembed.php */ | |
| 583 | + return apply_filters( 'oembed_result', $wp_oembed->data2html( $data, $url ), $url, $args ); | |
| 584 | + } | |
| 585 | + | |
| 586 | + // Fallback to the custom handler if the oembed result is not found, especially for the private video. | |
| 587 | + return jetpack_youtube_id( $url ); | |
| 588 | +} | |
| 589 | +add_filter( 'pre_oembed_result', 'wpcom_youtube_filter_pre_oembed_result', 10, 3 ); | |
| 590 | + | |
| 591 | +/** | |
| 592 | + * Remove the ending question mark from the video id of the YouTube URL. | |
| 593 | + * | |
| 594 | + * Example: https://www.youtube.com/watch?v=AVAWwXeOyyQ? | |
| 595 | + * | |
| 596 | + * @since 13.9 | |
| 597 | + * | |
| 598 | + * @param string $provider URL of the oEmbed provider. | |
| 599 | + * @param string $url URL of the content to be embedded. | |
| 600 | + * | |
| 601 | + * @return string | |
| 602 | + */ | |
| 603 | +function wpcom_youtube_oembed_fetch_url( $provider, $url ) { | |
| 604 | + if ( ! wp_startswith( $provider, 'https://www.youtube.com/oembed' ) ) { | |
| 605 | + return $provider; | |
| 606 | + } | |
| 607 | + | |
| 608 | + $parsed = wp_parse_url( $url ); | |
| 609 | + if ( ! isset( $parsed['query'] ) ) { | |
| 610 | + return $provider; | |
| 611 | + } | |
| 612 | + | |
| 613 | + $query_vars = array(); | |
| 614 | + wp_parse_str( $parsed['query'], $query_vars ); | |
| 615 | + if ( isset( $query_vars['v'] ) && wp_endswith( $query_vars['v'], '?' ) ) { | |
| 616 | + $url = remove_query_arg( array( 'v' ), $url ); | |
| 617 | + $url = add_query_arg( 'v', preg_replace( '/\?$/', '', $query_vars['v'] ), $url ); | |
| 618 | + } | |
| 619 | + | |
| 620 | + $provider = remove_query_arg( array( 'url' ), $provider ); | |
| 621 | + $provider = add_query_arg( 'url', rawurlencode( $url ), $provider ); | |
| 622 | + | |
| 623 | + return $provider; | |
| 624 | +} | |
| 625 | +add_filter( 'oembed_fetch_url', 'wpcom_youtube_oembed_fetch_url', 10, 2 ); | |
| 626 | + | |
| 627 | +if ( | |
| 628 | + ! is_admin() | |
| 629 | + && | |
| 630 | + /** | |
| 631 | + * Allow oEmbeds in Jetpack's Comment form. | |
| 632 | + * | |
| 633 | + * @module shortcodes | |
| 634 | + * | |
| 635 | + * @since 2.8.0 | |
| 636 | + * | |
| 637 | + * @param int $allow_oembed Option to automatically embed all plain text URLs. | |
| 638 | + */ | |
| 639 | + apply_filters( 'jetpack_comments_allow_oembed', true ) | |
| 640 | + // No need for this on WordPress.com, this is done for multiple shortcodes at a time there. | |
| 641 | + && ( ! defined( 'IS_WPCOM' ) || ! IS_WPCOM ) | |
| 642 | +) { | |
| 643 | + /* | |
| 644 | + * We attach wp_kses_post to comment_text in default-filters.php with priority of 10 anyway, | |
| 645 | + * so the iframe gets filtered out. | |
| 646 | + * Higher priority because we need it before auto-link and autop get to it. | |
| 647 | + */ | |
| 648 | + add_filter( 'comment_text', 'jetpack_youtube_link', 1 ); | |
| 649 | +} | |
| 650 | + | |
| 651 | +/** | |
| 652 | + * Core changes to do_shortcode (https://core.trac.wordpress.org/changeset/34747) broke "improper" shortcodes | |
| 653 | + * with the format [shortcode=http://url.com]. | |
| 654 | + * | |
| 655 | + * This removes the "=" from the shortcode so it can be parsed. | |
| 656 | + * | |
| 657 | + * @see https://github.com/Automattic/jetpack/issues/3121 | |
| 658 | + * | |
| 659 | + * @param string $content HTML content. | |
| 660 | + */ | |
| 661 | +function jetpack_fix_youtube_shortcode_display_filter( $content ) { | |
| 662 | + if ( strpos( $content, '[youtube=' ) !== false ) { | |
| 663 | + $content = preg_replace( '@\[youtube=(.*?)\]@', '[youtube $1]', $content ); | |
| 664 | + } | |
| 665 | + | |
| 666 | + return $content; | |
| 667 | +} | |
| 668 | +add_filter( 'the_content', 'jetpack_fix_youtube_shortcode_display_filter', 7 ); | |
