| 1 |
<?php |
| 2 |
/** |
| 3 |
* Youtube shortcode |
| 4 |
* |
| 5 |
* Contains shortcode + some improvements over the Core Embeds syntax (see http://codex.wordpress.org/Embeds ) |
| 6 |
* |
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* 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] |
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* http://www.youtube.com/watch?v=H2Ncxw1xfck&w=320&h=240&fmt=1&rel=0&showsearch=1&hd=0 |
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* http://www.youtube.com/v/9FhMMmqzbD8?fs=1&hl=en_US |
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* https://www.youtube.com/playlist?list=PLP7HaNDU4Cifov7C2fQM8Ij6Ew_uPHEXW |
| 13 |
* |
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* @package Jetpack |
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*/ |
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|
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/** |
| 18 |
* Replaces YouTube embeds with YouTube shortcodes. |
| 19 |
* |
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* Covers the following formats: |
| 21 |
* 2008-07-15: |
| 22 |
* <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> |
| 23 |
* around 2008-06-06 youtube changed their old embed code to this: |
| 24 |
* <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> |
| 25 |
* old style was: |
| 26 |
* <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> |
| 27 |
* 12-2010: |
| 28 |
* <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> |
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* 01-2011: |
| 30 |
* <iframe title="YouTube video player" class="youtube-player" type="text/html" width="640" height="390" src="http://www.youtube.com/embed/Qq9El3ki0_g" frameborder="0" allowFullScreen></iframe> |
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* <iframe class="youtube-player" type="text/html" width="640" height="385" src="http://www.youtube.com/embed/VIDEO_ID" frameborder="0"></iframe> |
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* |
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* @param string $content HTML content. |
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* @return string The content with YouTube embeds replaced with YouTube shortcodes. |
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*/ |
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function youtube_embed_to_short_code( $content ) { |
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if ( ! is_string( $content ) || false === strpos( $content, 'youtube.com' ) ) { |
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return $content; |
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} |
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|
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// older codes. |
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$regexp = '!<object(.*?)>.*?<param\s+name=[\'"]movie[\'"]\s+value=[\'"](https?:)?//www\.youtube\.com/v/([^\'"]+)[\'"].*?>.*?</object>!i'; |
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$regexp_ent = htmlspecialchars( $regexp, ENT_NOQUOTES ); |
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$old_regexp = '!<embed(?:\s+\w+="[^"]*")*\s+src="https?(?:\:|�*58;)//www\.youtube\.com/v/([^"]+)"(?:\s+\w+="[^"]*")*\s*(?:/>|>\s*</embed>)!'; |
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$old_regexp_ent = str_replace( '&#0*58;', '&#0*58;|�*58;', htmlspecialchars( $old_regexp, ENT_NOQUOTES ) ); |
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|
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// new code. |
| 48 |
$ifr_regexp = '!<iframe((?:\s+\w+="[^"]*")*?)\s+src="(https?:)?//(?:www\.)*youtube.com/embed/([^"]+)".*?</iframe>!i'; |
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$ifr_regexp_ent = str_replace( '&#0*58;', '&#0*58;|�*58;', htmlspecialchars( $ifr_regexp, ENT_NOQUOTES ) ); |
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|
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foreach ( compact( 'regexp', 'regexp_ent', 'old_regexp', 'old_regexp_ent', 'ifr_regexp', 'ifr_regexp_ent' ) as $reg => $regexp ) { |
| 52 |
if ( ! preg_match_all( $regexp, $content, $matches, PREG_SET_ORDER ) ) { |
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continue; |
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} |
| 55 |
|
| 56 |
foreach ( $matches as $match ) { |
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/* |
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* Hack, but '?' should only ever appear once, and |
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* it should be for the 1st field-value pair in query string, |
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* if it is present |
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* YouTube changed their embed code. |
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* Example of how it is now: |
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* <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> |
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* As shown at the start of function, previous YouTube didn't '?' |
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* the 1st field-value pair. |
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*/ |
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if ( in_array( $reg, array( 'ifr_regexp', 'ifr_regexp_ent', 'regexp', 'regexp_ent' ), true ) ) { |
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$params = $match[1]; |
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|
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if ( in_array( $reg, array( 'ifr_regexp_ent', 'regexp_ent' ), true ) ) { |
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$params = html_entity_decode( $params ); |
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} |
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|
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$params = wp_kses_hair( $params, array( 'http' ) ); |
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|
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$width = isset( $params['width'] ) ? (int) $params['width']['value'] : 0; |
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$height = isset( $params['height'] ) ? (int) $params['height']['value'] : 0; |
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$wh = ''; |
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|
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if ( $width && $height ) { |
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$wh = "&w=$width&h=$height"; |
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} |
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|
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$url = esc_url_raw( "https://www.youtube.com/watch?v={$match[3]}{$wh}" ); |
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} else { |
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$match[1] = str_replace( '?', '&', $match[1] ); |
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|
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$url = esc_url_raw( 'https://www.youtube.com/watch?v=' . html_entity_decode( $match[1] ) ); |
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} |
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|
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$content = str_replace( $match[0], "[youtube $url]", $content ); |
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|
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/** |
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* Fires before the YouTube embed is transformed into a shortcode. |
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* |
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* @module shortcodes |
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* |
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* @since 1.2.0 |
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* |
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* @param string youtube Shortcode name. |
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* @param string $url YouTube video URL. |
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*/ |
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do_action( 'jetpack_embed_to_shortcode', 'youtube', $url ); |
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} |
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} |
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|
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return $content; |
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} |
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add_filter( 'pre_kses', 'youtube_embed_to_short_code' ); |
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|
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/** |
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* Replaces plain-text links to YouTube videos with YouTube embeds. |
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* |
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* @param string $content HTML content. |
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* |
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* @return string The content with embeds instead of URLs |
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*/ |
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function youtube_link( $content ) { |
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return jetpack_preg_replace_callback_outside_tags( '!(?:\n|\A)https?://(?:www\.)?(?:youtube.com/(?:v/|playlist|watch[/\#?])|youtu\.be/)[^\s]+?(?:\n|\Z)!i', 'youtube_link_callback', $content, 'youtube.com/' ); |
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} |
| 121 |
|
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/** |
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* Callback function for the regex that replaces YouTube URLs with |
| 124 |
* YouTube embeds. |
| 125 |
* |
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* @param array $matches An array containing a YouTube URL. |
| 127 |
*/ |
| 128 |
function youtube_link_callback( $matches ) { |
| 129 |
return "\n" . youtube_id( $matches[0] ) . "\n"; |
| 130 |
} |
| 131 |
|
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/** |
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* Normalizes a YouTube URL to include a v= parameter and a query string free of encoded ampersands. |
| 134 |
* |
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* @param string $url |
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* @return string The normalized URL |
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*/ |
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if ( ! function_exists( 'youtube_sanitize_url' ) ) : |
| 139 |
/** |
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* Clean up Youtube URL to match a single format. |
| 141 |
* |
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* @param string $url Youtube URL. |
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*/ |
| 144 |
function youtube_sanitize_url( $url ) { |
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$url = trim( $url, ' "' ); |
| 146 |
$url = trim( $url ); |
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$url = str_replace( array( 'youtu.be/', '/v/', '#!v=', '&', '&', 'playlist' ), array( 'youtu.be/?v=', '/?v=', '?v=', '&', '&', 'videoseries' ), $url ); |
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|
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// Replace any extra question marks with ampersands - the result of a URL like "http://www.youtube.com/v/9FhMMmqzbD8?fs=1&hl=en_US" being passed in. |
| 150 |
$query_string_start = strpos( $url, '?' ); |
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|
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if ( false !== $query_string_start ) { |
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$url = substr( $url, 0, $query_string_start + 1 ) . str_replace( '?', '&', substr( $url, $query_string_start + 1 ) ); |
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} |
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|
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return $url; |
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} |
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endif; |
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|
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/** |
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* Converts a YouTube URL into an embedded YouTube video. |
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* |
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* URL can be: |
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* http://www.youtube.com/embed/videoseries?list=PL94269DA08231042B&hl=en_US |
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* http://www.youtube.com/watch#!v=H2Ncxw1xfck |
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* http://www.youtube.com/watch?v=H2Ncxw1xfck |
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* http://www.youtube.com/watch?v=H2Ncxw1xfck&w=320&h=240&fmt=1&rel=0&showsearch=1&hd=0 |
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* http://www.youtube.com/v/jF-kELmmvgA |
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* http://www.youtube.com/v/9FhMMmqzbD8?fs=1&hl=en_US |
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* http://youtu.be/Rrohlqeir5E |
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* |
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* @param string $url Youtube URL. |
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*/ |
| 174 |
function youtube_id( $url ) { |
| 175 |
$id = jetpack_get_youtube_id( $url ); |
| 176 |
|
| 177 |
if ( ! $id ) { |
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return '<!--YouTube Error: bad URL entered-->'; |
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} |
| 180 |
|
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$url = youtube_sanitize_url( $url ); |
| 182 |
$url = wp_parse_url( $url ); |
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|
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$qargs = array(); |
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if ( ! empty( $url['query'] ) ) { |
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wp_parse_str( $url['query'], $qargs ); |
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} else { |
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return false; |
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} |
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|
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$fargs = array(); |
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if ( ! empty( $url['fragment'] ) ) { |
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wp_parse_str( $url['fragment'], $fargs ); |
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} |
| 195 |
|
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$qargs = array_merge( $fargs, $qargs ); |
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|
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// calculate the width and height, taking content_width into consideration. |
| 199 |
global $content_width; |
| 200 |
|
| 201 |
$input_w = ( isset( $qargs['w'] ) && intval( $qargs['w'] ) ) ? intval( $qargs['w'] ) : 0; |
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$input_h = ( isset( $qargs['h'] ) && intval( $qargs['h'] ) ) ? intval( $qargs['h'] ) : 0; |
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|
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// If we have $content_width, use it. |
| 205 |
if ( ! empty( $content_width ) ) { |
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$default_width = $content_width; |
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} else { |
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// Otherwise get default width from the old, now deprecated embed_size_w option. |
| 209 |
$default_width = get_option( 'embed_size_w' ); |
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} |
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|
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// If we don't know those 2 values use a hardcoded width. |
| 213 |
if ( empty( $default_width ) ) { |
| 214 |
$default_width = 640; |
| 215 |
} |
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|
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if ( $input_w > 0 && $input_h > 0 ) { |
| 218 |
$w = $input_w; |
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$h = $input_h; |
| 220 |
} elseif ( 0 === $input_w && 0 === $input_h ) { |
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if ( isset( $qargs['fmt'] ) && intval( $qargs['fmt'] ) ) { |
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$w = ( ! empty( $content_width ) ? min( $content_width, 480 ) : 480 ); |
| 223 |
} else { |
| 224 |
$w = ( ! empty( $content_width ) ? min( $content_width, $default_width ) : $default_width ); |
| 225 |
$h = ceil( ( $w / 16 ) * 9 ); |
| 226 |
} |
| 227 |
} elseif ( $input_w > 0 ) { |
| 228 |
$w = $input_w; |
| 229 |
$h = ceil( ( $w / 16 ) * 9 ); |
| 230 |
} else { |
| 231 |
if ( isset( $qargs['fmt'] ) && intval( $qargs['fmt'] ) ) { |
| 232 |
$w = ( ! empty( $content_width ) ? min( $content_width, 480 ) : 480 ); |
| 233 |
} else { |
| 234 |
$w = ( ! empty( $content_width ) ? min( $content_width, $default_width ) : $default_width ); |
| 235 |
$h = $input_h; |
| 236 |
} |
| 237 |
} |
| 238 |
|
| 239 |
/** |
| 240 |
* Filter the YouTube player width. |
| 241 |
* |
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* @module shortcodes |
| 243 |
* |
| 244 |
* @since 1.1.0 |
| 245 |
* |
| 246 |
* @param int $w Width of the YouTube player in pixels. |
| 247 |
*/ |
| 248 |
$w = (int) apply_filters( 'youtube_width', $w ); |
| 249 |
|
| 250 |
/** |
| 251 |
* Filter the YouTube player height. |
| 252 |
* |
| 253 |
* @module shortcodes |
| 254 |
* |
| 255 |
* @since 1.1.0 |
| 256 |
* |
| 257 |
* @param int $h Height of the YouTube player in pixels. |
| 258 |
*/ |
| 259 |
$h = (int) apply_filters( 'youtube_height', $h ); |
| 260 |
|
| 261 |
$rel = ( isset( $qargs['rel'] ) && '0' === $qargs['rel'] ) ? 0 : 1; |
| 262 |
$search = ( isset( $qargs['showsearch'] ) && '1' === $qargs['showsearch'] ) ? 1 : 0; |
| 263 |
$info = ( isset( $qargs['showinfo'] ) && '0' === $qargs['showinfo'] ) ? 0 : 1; |
| 264 |
$iv = ( isset( $qargs['iv_load_policy'] ) && '3' === $qargs['iv_load_policy'] ) ? 3 : 1; |
| 265 |
|
| 266 |
$fmt = ( isset( $qargs['fmt'] ) && intval( $qargs['fmt'] ) ) ? '&fmt=' . (int) $qargs['fmt'] : ''; |
| 267 |
|
| 268 |
if ( ! isset( $qargs['autohide'] ) || ( $qargs['autohide'] < 0 || 2 < $qargs['autohide'] ) ) { |
| 269 |
$autohide = '&autohide=2'; |
| 270 |
} else { |
| 271 |
$autohide = '&autohide=' . absint( $qargs['autohide'] ); |
| 272 |
} |
| 273 |
|
| 274 |
$start = 0; |
| 275 |
if ( isset( $qargs['start'] ) ) { |
| 276 |
$start = intval( $qargs['start'] ); |
| 277 |
} elseif ( isset( $qargs['t'] ) ) { |
| 278 |
$time_pieces = preg_split( '/(?<=\D)(?=\d+)/', $qargs['t'] ); |
| 279 |
|
| 280 |
foreach ( $time_pieces as $time_piece ) { |
| 281 |
$int = (int) $time_piece; |
| 282 |
switch ( substr( $time_piece, -1 ) ) { |
| 283 |
case 'h': |
| 284 |
$start += $int * 3600; |
| 285 |
break; |
| 286 |
case 'm': |
| 287 |
$start += $int * 60; |
| 288 |
break; |
| 289 |
case 's': |
| 290 |
$start += $int; |
| 291 |
break; |
| 292 |
} |
| 293 |
} |
| 294 |
} |
| 295 |
|
| 296 |
$start = $start ? '&start=' . $start : ''; |
| 297 |
$end = ( isset( $qargs['end'] ) && intval( $qargs['end'] ) ) ? '&end=' . (int) $qargs['end'] : ''; |
| 298 |
$hd = ( isset( $qargs['hd'] ) && intval( $qargs['hd'] ) ) ? '&hd=' . (int) $qargs['hd'] : ''; |
| 299 |
|
| 300 |
$vq = ( isset( $qargs['vq'] ) && in_array( $qargs['vq'], array( 'hd720', 'hd1080' ), true ) ) ? '&vq=' . $qargs['vq'] : ''; |
| 301 |
|
| 302 |
$cc = ( isset( $qargs['cc_load_policy'] ) ) ? '&cc_load_policy=1' : ''; |
| 303 |
$cc_lang = ( isset( $qargs['cc_lang_pref'] ) ) ? '&cc_lang_pref=' . preg_replace( '/[^_a-z0-9-]/i', '', $qargs['cc_lang_pref'] ) : ''; |
| 304 |
|
| 305 |
$wmode = ( isset( $qargs['wmode'] ) && in_array( strtolower( $qargs['wmode'] ), array( 'opaque', 'window', 'transparent' ), true ) ) ? $qargs['wmode'] : 'transparent'; |
| 306 |
|
| 307 |
$theme = ( isset( $qargs['theme'] ) && in_array( strtolower( $qargs['theme'] ), array( 'dark', 'light' ), true ) ) ? '&theme=' . $qargs['theme'] : ''; |
| 308 |
|
| 309 |
$autoplay = ''; |
| 310 |
/** |
| 311 |
* Allow YouTube videos to start playing automatically. |
| 312 |
* |
| 313 |
* @module shortcodes |
| 314 |
* |
| 315 |
* @since 2.2.2 |
| 316 |
* |
| 317 |
* @param bool false Enable autoplay for YouTube videos. |
| 318 |
*/ |
| 319 |
if ( apply_filters( 'jetpack_youtube_allow_autoplay', false ) && isset( $qargs['autoplay'] ) ) { |
| 320 |
$autoplay = '&autoplay=' . (int) $qargs['autoplay']; |
| 321 |
} |
| 322 |
|
| 323 |
if ( |
| 324 |
( isset( $url['path'] ) && '/videoseries' === $url['path'] ) |
| 325 |
|| isset( $qargs['list'] ) |
| 326 |
) { |
| 327 |
$html = "<iframe class='youtube-player' type='text/html' width='$w' height='$h' src='" . esc_url( "https://www.youtube.com/embed/videoseries?list=$id&hl=en_US" ) . "' allowfullscreen='true' style='border:0;'></iframe>"; |
| 328 |
} else { |
| 329 |
$html = "<iframe class='youtube-player' type='text/html' width='$w' height='$h' src='" . esc_url( "https://www.youtube.com/embed/$id?version=3&rel=$rel&fs=1$fmt$autohide&showsearch=$search&showinfo=$info&iv_load_policy=$iv$start$end$hd&wmode=$wmode$theme$autoplay$vq{$cc}{$cc_lang}" ) . "' allowfullscreen='true' style='border:0;'></iframe>"; |
| 330 |
} |
| 331 |
|
| 332 |
// Let's do some alignment wonder in a span, unless we're producing a feed. |
| 333 |
if ( ! is_feed() ) { |
| 334 |
$alignmentcss = 'text-align:center;'; |
| 335 |
if ( isset( $qargs['align'] ) ) { |
| 336 |
switch ( $qargs['align'] ) { |
| 337 |
case 'left': |
| 338 |
$alignmentcss = "float:left; width:{$w}px; height:{$h}px; margin-right:10px; margin-bottom: 10px;"; |
| 339 |
break; |
| 340 |
case 'right': |
| 341 |
$alignmentcss = "float:right; width:{$w}px; height:{$h}px; margin-left:10px; margin-bottom: 10px;"; |
| 342 |
break; |
| 343 |
} |
| 344 |
} |
| 345 |
|
| 346 |
$html = sprintf( |
| 347 |
'<span class="embed-youtube" style="%s display: block;">%s</span>', |
| 348 |
esc_attr( $alignmentcss ), |
| 349 |
$html |
| 350 |
); |
| 351 |
|
| 352 |
} |
| 353 |
|
| 354 |
/** |
| 355 |
* Filter the YouTube video HTML output. |
| 356 |
* |
| 357 |
* @module shortcodes |
| 358 |
* |
| 359 |
* @since 1.2.3 |
| 360 |
* |
| 361 |
* @param string $html YouTube video HTML output. |
| 362 |
*/ |
| 363 |
$html = apply_filters( 'video_embed_html', $html ); |
| 364 |
|
| 365 |
return $html; |
| 366 |
} |
| 367 |
|
| 368 |
/** |
| 369 |
* Display the Youtube shortcode. |
| 370 |
* |
| 371 |
* @param array $atts Shortcode attributes. |
| 372 |
*/ |
| 373 |
function youtube_shortcode( $atts ) { |
| 374 |
return youtube_id( ( isset( $atts[0] ) ) ? ltrim( $atts[0], '=' ) : shortcode_new_to_old_params( $atts ) ); |
| 375 |
} |
| 376 |
add_shortcode( 'youtube', 'youtube_shortcode' ); |
| 377 |
|
| 378 |
/** |
| 379 |
* For bare URLs on their own line of the form |
| 380 |
* http://www.youtube.com/v/9FhMMmqzbD8?fs=1&hl=en_US |
| 381 |
* |
| 382 |
* @param array $matches Regex partial matches against the URL passed. |
| 383 |
* @param array $attr Attributes received in embed response. |
| 384 |
* @param array $url Requested URL to be embedded. |
| 385 |
*/ |
| 386 |
function wpcom_youtube_embed_crazy_url( $matches, $attr, $url ) { |
| 387 |
return youtube_id( $url ); |
| 388 |
} |
| 389 |
|
| 390 |
/** |
| 391 |
* Add a new handler to automatically transform custom Youtube URLs (like playlists) into embeds. |
| 392 |
*/ |
| 393 |
function wpcom_youtube_embed_crazy_url_init() { |
| 394 |
wp_embed_register_handler( 'wpcom_youtube_embed_crazy_url', '#https?://(?:www\.)?(?:youtube.com/(?:v/|playlist|watch[/\#?])|youtu\.be/).*#i', 'wpcom_youtube_embed_crazy_url' ); |
| 395 |
} |
| 396 |
add_action( 'init', 'wpcom_youtube_embed_crazy_url_init' ); |
| 397 |
|
| 398 |
/** |
| 399 |
* Allow oEmbeds in Jetpack's Comment form. |
| 400 |
* |
| 401 |
* @module shortcodes |
| 402 |
* |
| 403 |
* @since 2.8.0 |
| 404 |
* |
| 405 |
* @param int get_option('embed_autourls') Option to automatically embed all plain text URLs. |
| 406 |
*/ |
| 407 |
if ( ! is_admin() && apply_filters( 'jetpack_comments_allow_oembed', true ) ) { |
| 408 |
/* |
| 409 |
* We attach wp_kses_post to comment_text in default-filters.php with priority of 10 anyway, |
| 410 |
* so the iframe gets filtered out. |
| 411 |
* Higher priority because we need it before auto-link and autop get to it. |
| 412 |
*/ |
| 413 |
add_filter( 'comment_text', 'youtube_link', 1 ); |
| 414 |
} |
| 415 |
|
| 416 |
/** |
| 417 |
* Core changes to do_shortcode (https://core.trac.wordpress.org/changeset/34747) broke "improper" shortcodes |
| 418 |
* with the format [shortcode=http://url.com]. |
| 419 |
* |
| 420 |
* This removes the "=" from the shortcode so it can be parsed. |
| 421 |
* |
| 422 |
* @see https://github.com/Automattic/jetpack/issues/3121 |
| 423 |
* |
| 424 |
* @param string $content HTML content. |
| 425 |
*/ |
| 426 |
function jetpack_fix_youtube_shortcode_display_filter( $content ) { |
| 427 |
if ( strpos( $content, '[youtube=' ) !== false ) { |
| 428 |
$content = preg_replace( '@\[youtube=(.*?)\]@', '[youtube $1]', $content ); |
| 429 |
} |
| 430 |
|
| 431 |
return $content; |
| 432 |
} |
| 433 |
add_filter( 'the_content', 'jetpack_fix_youtube_shortcode_display_filter', 7 ); |
| 434 |
|
