664 lines
23 KiB
PHP
664 lines
23 KiB
PHP
<?php
|
|
/**
|
|
* Youtube shortcode
|
|
*
|
|
* Contains shortcode + some improvements over the Core Embeds syntax (see http://codex.wordpress.org/Embeds )
|
|
*
|
|
* Examples:
|
|
* [youtube https://www.youtube.com/watch?v=WVbQ-oro7FQ]
|
|
* [youtube=http://www.youtube.com/watch?v=wq0rXGLs0YM&fs=1&hl=bg_BG&autohide=1&rel=0]
|
|
* http://www.youtube.com/watch?v=H2Ncxw1xfck&w=320&h=240&fmt=1&rel=0&showsearch=1&hd=0
|
|
* http://www.youtube.com/v/9FhMMmqzbD8?fs=1&hl=en_US
|
|
* https://www.youtube.com/playlist?list=PLP7HaNDU4Cifov7C2fQM8Ij6Ew_uPHEXW
|
|
*
|
|
* @package automattic/jetpack
|
|
*/
|
|
|
|
/**
|
|
* Replaces YouTube embeds with YouTube shortcodes.
|
|
*
|
|
* Covers the following formats:
|
|
* 2008-07-15:
|
|
* <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>
|
|
* around 2008-06-06 youtube changed their old embed code to this:
|
|
* <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>
|
|
* old style was:
|
|
* <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>
|
|
* 12-2010:
|
|
* <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>
|
|
* 01-2011:
|
|
* <iframe title="YouTube video player" class="youtube-player" width="640" height="390" src="http://www.youtube.com/embed/Qq9El3ki0_g" frameborder="0" allowFullScreen></iframe>
|
|
* <iframe class="youtube-player" width="640" height="385" src="http://www.youtube.com/embed/VIDEO_ID" frameborder="0"></iframe>
|
|
*
|
|
* @param string $content HTML content.
|
|
* @return string The content with YouTube embeds replaced with YouTube shortcodes.
|
|
*/
|
|
function youtube_embed_to_short_code( $content ) {
|
|
if ( ! is_string( $content ) || ! str_contains( $content, 'youtube.com' ) ) {
|
|
return $content;
|
|
}
|
|
|
|
// older codes.
|
|
$regexp = '!<object(.*?)>.*?<param\s+name=[\'"]movie[\'"]\s+value=[\'"](https?:)?//www\.youtube\.com/v/([^\'"]+)[\'"].*?>.*?</object>!i';
|
|
$regexp_ent = htmlspecialchars( $regexp, ENT_NOQUOTES );
|
|
$old_regexp = '!<embed(?:\s+\w+="[^"]*")*\s+src="https?(?:\:|�*58;)//www\.youtube\.com/v/([^"]+)"(?:\s+\w+="[^"]*")*\s*(?:/>|>\s*</embed>)!';
|
|
$old_regexp_ent = str_replace( '&#0*58;', '&#0*58;|�*58;', htmlspecialchars( $old_regexp, ENT_NOQUOTES ) );
|
|
|
|
// new code.
|
|
$ifr_regexp = '!<iframe((?:\s+\w+="[^"]*")*?)\s+src="(https?:)?//(?:www\.)*youtube.com/embed/([^"]+)".*?</iframe>!i';
|
|
$ifr_regexp_ent = str_replace( '&#0*58;', '&#0*58;|�*58;', htmlspecialchars( $ifr_regexp, ENT_NOQUOTES ) );
|
|
|
|
foreach ( compact( 'regexp', 'regexp_ent', 'old_regexp', 'old_regexp_ent', 'ifr_regexp', 'ifr_regexp_ent' ) as $reg => $regexp ) {
|
|
if ( ! preg_match_all( $regexp, $content, $matches, PREG_SET_ORDER ) ) {
|
|
continue;
|
|
}
|
|
|
|
foreach ( $matches as $match ) {
|
|
/*
|
|
* Hack, but '?' should only ever appear once, and
|
|
* it should be for the 1st field-value pair in query string,
|
|
* if it is present
|
|
* YouTube changed their embed code.
|
|
* Example of how it is now:
|
|
* <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>
|
|
* As shown at the start of function, previous YouTube didn't '?'
|
|
* the 1st field-value pair.
|
|
*/
|
|
if ( in_array( $reg, array( 'ifr_regexp', 'ifr_regexp_ent', 'regexp', 'regexp_ent' ), true ) ) {
|
|
$params = $match[1];
|
|
|
|
if ( in_array( $reg, array( 'ifr_regexp_ent', 'regexp_ent' ), true ) ) {
|
|
$params = html_entity_decode( $params, ENT_QUOTES | ENT_SUBSTITUTE | ENT_HTML401 );
|
|
}
|
|
|
|
$params = wp_kses_hair( $params, array( 'http' ) );
|
|
|
|
$width = isset( $params['width'] ) ? (int) $params['width']['value'] : 0;
|
|
$height = isset( $params['height'] ) ? (int) $params['height']['value'] : 0;
|
|
$wh = '';
|
|
|
|
if ( $width && $height ) {
|
|
$wh = "&w=$width&h=$height";
|
|
}
|
|
|
|
$url = esc_url_raw( "https://www.youtube.com/watch?v={$match[3]}{$wh}" );
|
|
} else {
|
|
$match[1] = str_replace( '?', '&', $match[1] );
|
|
|
|
$url = esc_url_raw( 'https://www.youtube.com/watch?v=' . html_entity_decode( $match[1], ENT_QUOTES | ENT_SUBSTITUTE | ENT_HTML401 ) );
|
|
}
|
|
|
|
$content = str_replace( $match[0], "[youtube $url]", $content );
|
|
|
|
/**
|
|
* Fires before the YouTube embed is transformed into a shortcode.
|
|
*
|
|
* @module shortcodes
|
|
*
|
|
* @since 1.2.0
|
|
*
|
|
* @param string youtube Shortcode name.
|
|
* @param string $url YouTube video URL.
|
|
*/
|
|
do_action( 'jetpack_embed_to_shortcode', 'youtube', $url );
|
|
}
|
|
}
|
|
|
|
return $content;
|
|
}
|
|
add_filter( 'pre_kses', 'youtube_embed_to_short_code' );
|
|
|
|
/**
|
|
* Replaces plain-text links to YouTube videos with YouTube embeds.
|
|
*
|
|
* @param string $content HTML content.
|
|
*
|
|
* @return string The content with embeds instead of URLs
|
|
*/
|
|
function youtube_link( $content ) {
|
|
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/' );
|
|
}
|
|
|
|
/**
|
|
* Callback function for the regex that replaces YouTube URLs with
|
|
* YouTube embeds.
|
|
*
|
|
* @param array $matches An array containing a YouTube URL.
|
|
*/
|
|
function youtube_link_callback( $matches ) {
|
|
return "\n" . youtube_id( $matches[0] ) . "\n";
|
|
}
|
|
|
|
/**
|
|
* Normalizes a YouTube URL to include a v= parameter and a query string free of encoded ampersands.
|
|
*
|
|
* @param string|array $url Youtube URL.
|
|
* @return string|false The normalized URL or false if input is invalid.
|
|
*/
|
|
if ( ! function_exists( 'youtube_sanitize_url' ) ) :
|
|
/**
|
|
* Clean up Youtube URL to match a single format.
|
|
*
|
|
* @param string|array $url Youtube URL.
|
|
*/
|
|
function youtube_sanitize_url( $url ) {
|
|
if ( is_array( $url ) && isset( $url['url'] ) ) {
|
|
$url = $url['url'];
|
|
}
|
|
if ( ! is_string( $url ) ) {
|
|
return false;
|
|
}
|
|
|
|
$url = trim( $url, ' "' );
|
|
$url = trim( $url );
|
|
$url = str_replace( array( 'youtu.be/', '/v/', '#!v=', '&', '&', 'playlist' ), array( 'youtu.be/?v=', '/?v=', '?v=', '&', '&', 'videoseries' ), $url );
|
|
|
|
// 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.
|
|
$query_string_start = strpos( $url, '?' );
|
|
|
|
if ( false !== $query_string_start ) {
|
|
$url = substr( $url, 0, $query_string_start + 1 ) . str_replace( '?', '&', substr( $url, $query_string_start + 1 ) );
|
|
}
|
|
|
|
return $url;
|
|
}
|
|
endif;
|
|
|
|
/**
|
|
* Converts a YouTube URL into an embedded YouTube video.
|
|
*
|
|
* URL can be:
|
|
* http://www.youtube.com/embed/videoseries?list=PL94269DA08231042B&hl=en_US
|
|
* http://www.youtube.com/watch#!v=H2Ncxw1xfck
|
|
* http://www.youtube.com/watch?v=H2Ncxw1xfck
|
|
* http://www.youtube.com/watch?v=H2Ncxw1xfck&w=320&h=240&fmt=1&rel=0&showsearch=1&hd=0
|
|
* http://www.youtube.com/v/jF-kELmmvgA
|
|
* http://www.youtube.com/v/9FhMMmqzbD8?fs=1&hl=en_US
|
|
* http://youtu.be/Rrohlqeir5E
|
|
* https://www.youtube.com/watch?v=GJNxoe-iSb4&list=PLAVZ4NFtZX0fE54mDSqNKym-o_rz-8xmk
|
|
*
|
|
* @param string $url Youtube URL.
|
|
*/
|
|
function youtube_id( $url ) {
|
|
$id = jetpack_get_youtube_id( $url );
|
|
|
|
if ( ! $id ) {
|
|
return sprintf( '<!--%s-->', esc_html__( 'YouTube Error: bad URL entered', 'jetpack' ) );
|
|
}
|
|
|
|
$url = youtube_sanitize_url( $url );
|
|
$url = wp_parse_url( $url );
|
|
|
|
$thumbnail = "https://i.ytimg.com/vi/$id/hqdefault.jpg";
|
|
$video_url = add_query_arg( 'v', $id, 'https://www.youtube.com/watch' );
|
|
|
|
$args = jetpack_shortcode_youtube_args( $url );
|
|
if ( empty( $args ) ) {
|
|
return sprintf( '<!--%s-->', esc_html__( 'YouTube Error: empty URL args', 'jetpack' ) );
|
|
}
|
|
|
|
// Account for URL having both v and list, where jetpack_get_youtube_id() only accounts for one or the other.
|
|
if ( isset( $args['list'] ) && $args['list'] === $id ) {
|
|
$id = null;
|
|
}
|
|
if ( isset( $args['v'] ) ) {
|
|
$id = $args['v'];
|
|
}
|
|
if ( ! $id && empty( $args['list'] ) ) {
|
|
return sprintf( '<!--%s-->', esc_html__( 'YouTube Error: missing id and/or list', 'jetpack' ) );
|
|
}
|
|
|
|
list( $w, $h ) = jetpack_shortcode_youtube_dimensions( $args );
|
|
|
|
$params = array(
|
|
'rel' => ( isset( $args['rel'] ) && '0' === $args['rel'] ) ? 0 : 1,
|
|
'showsearch' => ( isset( $args['showsearch'] ) && '1' === $args['showsearch'] ) ? 1 : 0, // Now deprecated. See https://developers.google.com/youtube/player_parameters#march-29,-2012.
|
|
'showinfo' => ( isset( $args['showinfo'] ) && '0' === $args['showinfo'] ) ? 0 : 1, // Now obsolete. See https://developers.google.com/youtube/player_parameters#showinfo.
|
|
'iv_load_policy' => ( isset( $args['iv_load_policy'] ) && '3' === $args['iv_load_policy'] ) ? 3 : 1,
|
|
'fs' => 1,
|
|
'hl' => str_replace( '_', '-', get_locale() ),
|
|
);
|
|
if ( isset( $args['fmt'] ) && (int) $args['fmt'] ) {
|
|
$params['fmt'] = (int) $args['fmt']; // Apparently an obsolete parameter. Not referenced on https://developers.google.com/youtube/player_parameters.
|
|
}
|
|
|
|
// The autohide parameter has been deprecated since 2015. See https://developers.google.com/youtube/player_parameters#august-19,-2015.
|
|
if ( ! isset( $args['autohide'] ) || ( $args['autohide'] < 0 || 2 < $args['autohide'] ) ) {
|
|
$params['autohide'] = 2;
|
|
} else {
|
|
$params['autohide'] = (int) $args['autohide'];
|
|
}
|
|
|
|
$start = 0;
|
|
if ( isset( $args['start'] ) ) {
|
|
$start = (int) $args['start'];
|
|
} elseif ( isset( $args['t'] ) ) {
|
|
if ( is_numeric( $args['t'] ) ) {
|
|
$start = (int) $args['t'];
|
|
} elseif ( is_string( $args['t'] ) ) {
|
|
$time_pieces = preg_split( '/(?<=\D)(?=\d+)/', $args['t'] );
|
|
|
|
foreach ( $time_pieces as $time_piece ) {
|
|
$int = (int) $time_piece;
|
|
switch ( substr( $time_piece, - 1 ) ) {
|
|
case 'h':
|
|
$start += $int * 3600;
|
|
break;
|
|
case 'm':
|
|
$start += $int * 60;
|
|
break;
|
|
case 's':
|
|
$start += $int;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if ( $start ) {
|
|
$params['start'] = (int) $start;
|
|
}
|
|
|
|
if ( isset( $args['end'] ) && (int) $args['end'] ) {
|
|
$params['end'] = (int) $args['end'];
|
|
}
|
|
if ( isset( $args['hd'] ) && (int) $args['hd'] ) {
|
|
$params['hd'] = (int) $args['hd']; // Now obsolete per https://developers.google.com/youtube/player_parameters#march-29,-2012.
|
|
}
|
|
if ( isset( $args['vq'] ) && in_array( $args['vq'], array( 'hd720', 'hd1080' ), true ) ) {
|
|
$params['vq'] = $args['vq']; // Note, this appears to be obsolete. Not referenced on https://developers.google.com/youtube/player_parameters.
|
|
}
|
|
if ( isset( $args['cc_load_policy'] ) ) {
|
|
$params['cc_load_policy'] = 1;
|
|
}
|
|
if ( isset( $args['cc_lang_pref'] ) ) {
|
|
$params['cc_lang_pref'] = preg_replace( '/[^_a-z0-9-]/i', '', $args['cc_lang_pref'] );
|
|
}
|
|
|
|
// The wmode parameter appears to be obsolete. Not referenced on https://developers.google.com/youtube/player_parameters.
|
|
if ( isset( $args['wmode'] ) && in_array( strtolower( $args['wmode'] ), array( 'opaque', 'window', 'transparent' ), true ) ) {
|
|
$params['wmode'] = $args['wmode'];
|
|
} else {
|
|
$params['wmode'] = 'transparent';
|
|
}
|
|
|
|
// The theme parameter is obsolete per https://developers.google.com/youtube/player_parameters#august-19,-2015.
|
|
if ( isset( $args['theme'] ) && in_array( strtolower( $args['theme'] ), array( 'dark', 'light' ), true ) ) {
|
|
$params['theme'] = $args['theme'];
|
|
}
|
|
|
|
if ( isset( $args['list'] ) ) {
|
|
$params['listType'] = 'playlist';
|
|
$params['list'] = preg_replace( '|[^_a-z0-9-]|i', '', $args['list'] );
|
|
}
|
|
|
|
/**
|
|
* Allow YouTube videos to start playing automatically.
|
|
*
|
|
* @module shortcodes
|
|
*
|
|
* @since 2.2.2
|
|
*
|
|
* @param bool false Enable autoplay for YouTube videos.
|
|
*/
|
|
if ( apply_filters( 'jetpack_youtube_allow_autoplay', false ) && isset( $args['autoplay'] ) ) {
|
|
$params['autoplay'] = (int) $args['autoplay'];
|
|
}
|
|
|
|
$is_amp = class_exists( 'Jetpack_AMP_Support' ) && Jetpack_AMP_Support::is_amp_request();
|
|
|
|
if ( $is_amp && $id ) {
|
|
// Note that <amp-youtube> currently is not well suited for playlists that don't have an individual video selected, hence the $id check above.
|
|
$placeholder = sprintf(
|
|
'<a href="%1$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>',
|
|
esc_url( $video_url ),
|
|
esc_url( $thumbnail ),
|
|
esc_attr__( 'YouTube Poster', 'jetpack' ) // Would be preferable to provide YouTube video title, but not available in this non-oEmbed context.
|
|
);
|
|
|
|
$html_attributes = array();
|
|
foreach ( $params as $param_name => $param_value ) {
|
|
$html_attributes[] = sprintf(
|
|
'data-param-%s="%s"',
|
|
sanitize_key( $param_name ),
|
|
esc_attr( $param_value )
|
|
);
|
|
}
|
|
|
|
$html = sprintf(
|
|
'<amp-youtube data-videoid="%s" %s width="%d" height="%d" layout="responsive">%s</amp-youtube>',
|
|
esc_attr( $id ),
|
|
implode( ' ', $html_attributes ), // Note: Escaping done above.
|
|
esc_attr( $w ),
|
|
esc_attr( $h ),
|
|
$placeholder
|
|
);
|
|
} else {
|
|
// In AMP, the AMP_Iframe_Sanitizer will convert into <amp-iframe> as required.
|
|
$src = 'https://www.youtube.com/embed';
|
|
if ( $id ) {
|
|
$src .= "/$id";
|
|
}
|
|
$src = add_query_arg(
|
|
array_merge(
|
|
array( 'version' => 3 ),
|
|
$params
|
|
),
|
|
$src
|
|
);
|
|
|
|
$layout = $is_amp ? 'layout="responsive" ' : '';
|
|
|
|
$html = sprintf(
|
|
'<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>',
|
|
esc_attr( $w ),
|
|
esc_attr( $h ),
|
|
$layout,
|
|
esc_url( $src )
|
|
);
|
|
}
|
|
|
|
// Let's do some alignment wonder in a span, unless we're producing a feed.
|
|
if ( ! is_feed() ) {
|
|
$alignmentcss = 'text-align:center;';
|
|
if ( isset( $args['align'] ) ) {
|
|
switch ( $args['align'] ) {
|
|
case 'left':
|
|
$alignmentcss = "float:left; width:{$w}px; height:{$h}px; margin-right:10px; margin-bottom: 10px;";
|
|
break;
|
|
case 'right':
|
|
$alignmentcss = "float:right; width:{$w}px; height:{$h}px; margin-left:10px; margin-bottom: 10px;";
|
|
break;
|
|
}
|
|
}
|
|
|
|
$html = sprintf(
|
|
'<span class="embed-youtube" style="%s display: block;">%s</span>',
|
|
esc_attr( $alignmentcss ),
|
|
$html
|
|
);
|
|
|
|
}
|
|
|
|
/**
|
|
* Format output for Calypso Reader/Notifications/Comments
|
|
*/
|
|
if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
|
|
require_once WP_CONTENT_DIR . '/lib/display-context.php';
|
|
$context = A8C\Display_Context\get_current_context();
|
|
if ( A8C\Display_Context\NOTIFICATIONS === $context ) {
|
|
return sprintf(
|
|
'<a href="%1$s" target="_blank" rel="noopener noreferrer"><img src="%2$s" alt="%3$s" /></a>',
|
|
esc_url( $video_url ),
|
|
esc_url( $thumbnail ),
|
|
esc_html__( 'YouTube video', 'jetpack' )
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Filter the YouTube video HTML output.
|
|
*
|
|
* @module shortcodes
|
|
*
|
|
* @since 1.2.3
|
|
*
|
|
* @param string $html YouTube video HTML output.
|
|
*/
|
|
$html = apply_filters( 'video_embed_html', $html );
|
|
|
|
return $html;
|
|
}
|
|
|
|
/**
|
|
* Gets the args present in the YouTube shortcode URL.
|
|
*
|
|
* @since 8.0.0
|
|
*
|
|
* @param array $url The parsed URL of the shortcode.
|
|
*
|
|
* @return array|false The query args of the URL, or false.
|
|
*/
|
|
function jetpack_shortcode_youtube_args( $url ) {
|
|
$qargs = array();
|
|
if ( ! empty( $url['query'] ) ) {
|
|
wp_parse_str( $url['query'], $qargs );
|
|
} else {
|
|
return false;
|
|
}
|
|
|
|
$fargs = array();
|
|
if ( ! empty( $url['fragment'] ) ) {
|
|
wp_parse_str( $url['fragment'], $fargs );
|
|
}
|
|
|
|
return array_merge( $fargs, $qargs );
|
|
}
|
|
|
|
/**
|
|
* Display the Youtube shortcode.
|
|
*
|
|
* @param array $atts Shortcode attributes.
|
|
*
|
|
* @return string The rendered shortcode.
|
|
*/
|
|
function youtube_shortcode( $atts ) {
|
|
$url = ( isset( $atts[0] ) ) ? ltrim( $atts[0], '=' ) : shortcode_new_to_old_params( $atts );
|
|
return youtube_id( $url );
|
|
}
|
|
add_shortcode( 'youtube', 'youtube_shortcode' );
|
|
|
|
/**
|
|
* Gets the dimensions of the [youtube] shortcode.
|
|
*
|
|
* Calculates the width and height, taking $content_width into consideration.
|
|
*
|
|
* @since 8.0.0
|
|
*
|
|
* @param array $query_args The query args of the URL.
|
|
*
|
|
* @return array The width and height of the shortcode.
|
|
*/
|
|
function jetpack_shortcode_youtube_dimensions( $query_args ) {
|
|
$h = null;
|
|
global $content_width;
|
|
|
|
$input_w = ( isset( $query_args['w'] ) && (int) $query_args['w'] ) ? (int) $query_args['w'] : 0;
|
|
$input_h = ( isset( $query_args['h'] ) && (int) $query_args['h'] ) ? (int) $query_args['h'] : 0;
|
|
|
|
// If we have $content_width, use it.
|
|
if ( ! empty( $content_width ) ) {
|
|
$default_width = $content_width;
|
|
} else {
|
|
// Otherwise get default width from the old, now deprecated embed_size_w option.
|
|
$default_width = get_option( 'embed_size_w' );
|
|
}
|
|
|
|
// If we don't know those 2 values use a hardcoded width.
|
|
if ( empty( $default_width ) ) {
|
|
$default_width = 640;
|
|
}
|
|
|
|
if ( $input_w > 0 && $input_h > 0 ) {
|
|
$w = $input_w;
|
|
$h = $input_h;
|
|
} elseif ( 0 === $input_w && 0 === $input_h ) {
|
|
if ( isset( $query_args['fmt'] ) && (int) $query_args['fmt'] ) {
|
|
$w = ( ! empty( $content_width ) ? min( $content_width, 480 ) : 480 );
|
|
} else {
|
|
$w = ( ! empty( $content_width ) ? min( $content_width, $default_width ) : $default_width );
|
|
$h = ceil( ( $w / 16 ) * 9 );
|
|
}
|
|
} elseif ( $input_w > 0 ) {
|
|
$w = $input_w;
|
|
$h = ceil( ( $w / 16 ) * 9 );
|
|
} elseif ( isset( $query_args['fmt'] ) && (int) $query_args['fmt'] ) {
|
|
$w = ( ! empty( $content_width ) ? min( $content_width, 480 ) : 480 );
|
|
} else {
|
|
$w = ( ! empty( $content_width ) ? min( $content_width, $default_width ) : $default_width );
|
|
$h = $input_h;
|
|
}
|
|
|
|
/**
|
|
* Filter the YouTube player width.
|
|
*
|
|
* @module shortcodes
|
|
*
|
|
* @since 1.1.0
|
|
*
|
|
* @param int $w Width of the YouTube player in pixels.
|
|
*/
|
|
$w = (int) apply_filters( 'youtube_width', $w );
|
|
|
|
/**
|
|
* Filter the YouTube player height.
|
|
*
|
|
* @module shortcodes
|
|
*
|
|
* @since 1.1.0
|
|
*
|
|
* @param int $h Height of the YouTube player in pixels.
|
|
*/
|
|
$h = (int) apply_filters( 'youtube_height', $h );
|
|
|
|
return array( $w, $h );
|
|
}
|
|
|
|
/**
|
|
* For bare URLs on their own line of the form
|
|
* http://www.youtube.com/v/9FhMMmqzbD8?fs=1&hl=en_US
|
|
*
|
|
* @param array $matches Regex partial matches against the URL passed.
|
|
* @param array $attr Attributes received in embed response.
|
|
* @param string $url Requested URL to be embedded.
|
|
*/
|
|
function wpcom_youtube_embed_crazy_url( $matches, $attr, $url ) {
|
|
return youtube_id( $url );
|
|
}
|
|
|
|
/**
|
|
* Get the regex for Youtube URLs.
|
|
*/
|
|
function wpcom_youtube_get_regex() {
|
|
return '#https?://(?:www\.)?(?:youtube.com/(?:v/|playlist|watch[/\#?])|youtu\.be/).*#i';
|
|
}
|
|
|
|
/**
|
|
* Add a new handler to automatically transform custom Youtube URLs (like playlists) into embeds.
|
|
*/
|
|
function wpcom_youtube_embed_crazy_url_init() {
|
|
if ( ! defined( 'REST_API_REQUEST' ) ) {
|
|
return;
|
|
}
|
|
|
|
// Register the custom handler to provide the better support for the private video.
|
|
wp_embed_register_handler( 'wpcom_youtube_embed_crazy_url', wpcom_youtube_get_regex(), 'wpcom_youtube_embed_crazy_url' );
|
|
}
|
|
add_action( 'init', 'wpcom_youtube_embed_crazy_url_init' );
|
|
|
|
/**
|
|
* Filters the oEmbed result before any HTTP requests are made for YouTube.
|
|
*
|
|
* @since 13.9
|
|
*
|
|
* @param null|string $result The UNSANITIZED (and potentially unsafe) HTML that should be used to embed. Default null.
|
|
* @param string $url The URL that should be inspected for discovery `<link>` tags.
|
|
* @param array $args oEmbed remote get arguments.
|
|
* @return null|string The UNSANITIZED (and potentially unsafe) HTML that should be used to embed.
|
|
* Null if the URL does not belong to the current site.
|
|
*/
|
|
function wpcom_youtube_filter_pre_oembed_result( $result, $url, $args ) {
|
|
// Return early if it's not a YouTube URL.
|
|
if ( ! preg_match( wpcom_youtube_get_regex(), $url, $matches ) ) {
|
|
return $result;
|
|
}
|
|
|
|
// Try to get the oembed data by the Core's approach.
|
|
$wp_oembed = _wp_oembed_get_object();
|
|
$data = $wp_oembed->get_data( $url, $args );
|
|
if ( $data ) {
|
|
/** This filter is documented in wp-includes/class-wp-oembed.php */
|
|
return apply_filters( 'oembed_result', $wp_oembed->data2html( $data, $url ), $url, $args );
|
|
}
|
|
|
|
// Fallback to the custom handler if the oembed result is not found, especially for the private video.
|
|
return youtube_id( $url );
|
|
}
|
|
add_filter( 'pre_oembed_result', 'wpcom_youtube_filter_pre_oembed_result', 10, 3 );
|
|
|
|
/**
|
|
* Remove the ending question mark from the video id of the YouTube URL.
|
|
*
|
|
* Example: https://www.youtube.com/watch?v=AVAWwXeOyyQ?
|
|
*
|
|
* @since 13.9
|
|
*
|
|
* @param string $provider URL of the oEmbed provider.
|
|
* @param string $url URL of the content to be embedded.
|
|
*
|
|
* @return string
|
|
*/
|
|
function wpcom_youtube_oembed_fetch_url( $provider, $url ) {
|
|
if ( ! wp_startswith( $provider, 'https://www.youtube.com/oembed' ) ) {
|
|
return $provider;
|
|
}
|
|
|
|
$parsed = wp_parse_url( $url );
|
|
if ( ! isset( $parsed['query'] ) ) {
|
|
return $provider;
|
|
}
|
|
|
|
$query_vars = array();
|
|
wp_parse_str( $parsed['query'], $query_vars );
|
|
if ( isset( $query_vars['v'] ) && wp_endswith( $query_vars['v'], '?' ) ) {
|
|
$url = remove_query_arg( array( 'v' ), $url );
|
|
$url = add_query_arg( 'v', preg_replace( '/\?$/', '', $query_vars['v'] ), $url );
|
|
}
|
|
|
|
$provider = remove_query_arg( array( 'url' ), $provider );
|
|
$provider = add_query_arg( 'url', rawurlencode( $url ), $provider );
|
|
|
|
return $provider;
|
|
}
|
|
add_filter( 'oembed_fetch_url', 'wpcom_youtube_oembed_fetch_url', 10, 2 );
|
|
|
|
if (
|
|
! is_admin()
|
|
/**
|
|
* Allow oEmbeds in Jetpack's Comment form.
|
|
*
|
|
* @module shortcodes
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param int $allow_oembed Option to automatically embed all plain text URLs.
|
|
*/
|
|
&& apply_filters( 'jetpack_comments_allow_oembed', true )
|
|
// No need for this on WordPress.com, this is done for multiple shortcodes at a time there.
|
|
&& ( ! defined( 'IS_WPCOM' ) || ! IS_WPCOM )
|
|
) {
|
|
/*
|
|
* We attach wp_kses_post to comment_text in default-filters.php with priority of 10 anyway,
|
|
* so the iframe gets filtered out.
|
|
* Higher priority because we need it before auto-link and autop get to it.
|
|
*/
|
|
add_filter( 'comment_text', 'youtube_link', 1 );
|
|
}
|
|
|
|
/**
|
|
* Core changes to do_shortcode (https://core.trac.wordpress.org/changeset/34747) broke "improper" shortcodes
|
|
* with the format [shortcode=http://url.com].
|
|
*
|
|
* This removes the "=" from the shortcode so it can be parsed.
|
|
*
|
|
* @see https://github.com/Automattic/jetpack/issues/3121
|
|
*
|
|
* @param string $content HTML content.
|
|
*/
|
|
function jetpack_fix_youtube_shortcode_display_filter( $content ) {
|
|
if ( strpos( $content, '[youtube=' ) !== false ) {
|
|
$content = preg_replace( '@\[youtube=(.*?)\]@', '[youtube $1]', $content );
|
|
}
|
|
|
|
return $content;
|
|
}
|
|
add_filter( 'the_content', 'jetpack_fix_youtube_shortcode_display_filter', 7 );
|