/blog/wp-content/plugins/jetpack/modules/shortcodes/youtube.php
PHP | 379 lines | 185 code | 59 blank | 135 comment | 65 complexity | 8c5a0a70a3bfc93c71c8c787097653ad MD5 | raw file
- <?php
- /**
- * youtube shortcode
- *
- * Contains shortcode + some improvements over the Embeds syntax @
- * http://codex.wordpress.org/Embeds
- *
- * @example [youtube=http://www.youtube.com/watch?v=wq0rXGLs0YM&fs=1&hl=bg_BG]
- */
- /**
- * Replaces YouTube embeds with YouTube shortcodes.
- *
- * @param string $content HTML content.
- * @return string The content with YouTube embeds replaced with YouTube shortcodes.
- */
- // 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" type="text/html" width="640" height="390" src="http://www.youtube.com/embed/Qq9El3ki0_g" frameborder="0" allowFullScreen></iframe>
- // <iframe class="youtube-player" type="text/html" width="640" height="385" src="http://www.youtube.com/embed/VIDEO_ID" frameborder="0"></iframe>
- function youtube_embed_to_short_code( $content ) {
- if ( false === strpos( $content, 'youtube.com' ) )
- return $content;
- //older codes
- $regexp = '!<object width="\d+" height="\d+"><param name="movie" value="https?://www\.youtube\.com/v/([^"]+)"></param>(?:<param name="\w+" value="[^"]*"></param>)*<embed src="https?://www\.youtube\.com/v/(.+)" type="application/x-shockwave-flash"(?: \w+="[^"]*")* width="\d+" height="\d+"></embed></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 ( array( 'regexp', 'regexp_ent', 'old_regexp', 'old_regexp_ent', 'ifr_regexp', 'ifr_regexp_ent' ) as $reg ) {
- if ( ! preg_match_all( $$reg, $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' ) ) ) {
- $params = $match[1];
- if ( 'ifr_regexp_ent' == $reg )
- $params = html_entity_decode( $params );
- $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] ) );
- }
- $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 preg_replace_callback( '!(?:\n|\A)https?://(?:www\.)?(?:youtube.com/(?:v/|playlist|watch[/\#?])|youtu\.be/)[^\s]+?(?:\n|\Z)!i', 'youtube_link_callback', $content );
- }
- /**
- * Callback function for the regex that replaces YouTube URLs with
- * YouTube embeds.
- */
- 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 $url
- * @return string The normalized URL
- */
- if ( ! function_exists( 'youtube_sanitize_url' ) ) :
- function youtube_sanitize_url( $url ) {
- $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;
- /*
- * 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
- */
- /**
- * Converts a YouTube URL into an embedded YouTube video.
- */
- function youtube_id( $url ) {
- if ( ! $id = jetpack_get_youtube_id( $url ) )
- return '<!--YouTube Error: bad URL entered-->';
- $url = youtube_sanitize_url( $url );
- $url = parse_url( $url );
- if ( ! isset( $url['query'] ) )
- return false;
- if ( isset( $url['fragment'] ) ) {
- wp_parse_str( $url['fragment'], $fargs );
- } else {
- $fargs = array();
- }
- wp_parse_str( $url['query'], $qargs );
- $qargs = array_merge( $fargs, $qargs );
- // calculate the width and height, taking content_width into consideration
- global $content_width;
- $input_w = ( isset( $qargs['w'] ) && intval( $qargs['w'] ) ) ? intval( $qargs['w'] ) : 0;
- $input_h = ( isset( $qargs['h'] ) && intval( $qargs['h'] ) ) ? intval( $qargs['h'] ) : 0;
- $default_width = get_option('embed_size_w');
- if ( empty( $default_width ) ) {
- if ( ! empty( $content_width ) ) {
- $default_width = $content_width;
- } else {
- $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( $qargs['fmt'] ) && intval( $qargs['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 ) + 30;
- }
- } elseif ( $input_w > 0 ) {
- $w = $input_w;
- $h = ceil( ( $w / 16 ) * 9 ) + 30;
- } else {
- if ( isset( $qargs['fmt'] ) && intval( $qargs['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 );
- $rel = ( isset( $qargs['rel'] ) && 0 == $qargs['rel'] ) ? 0 : 1;
- $search = ( isset( $qargs['showsearch'] ) && 1 == $qargs['showsearch'] ) ? 1 : 0;
- $info = ( isset( $qargs['showinfo'] ) && 0 == $qargs['showinfo'] ) ? 0 : 1;
- $iv = ( isset( $qargs['iv_load_policy'] ) && 3 == $qargs['iv_load_policy'] ) ? 3 : 1;
- $fmt = ( isset( $qargs['fmt'] ) && intval( $qargs['fmt'] ) ) ? '&fmt=' . (int) $qargs['fmt'] : '';
- if ( ! isset( $qargs['autohide'] ) || ( $qargs['autohide'] < 0 || 2 < $qargs['autohide'] ) ) {
- $autohide = '&autohide=2';
- } else {
- $autohide = '&autohide=' . absint( $qargs['autohide'] );
- }
- $start = 0;
- if ( isset( $qargs['start'] ) ) {
- $start = intval( $qargs['start'] );
- } else if ( isset( $qargs['t'] ) ) {
- $time_pieces = preg_split( '/(?<=\D)(?=\d+)/', $qargs['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;
- }
- }
- }
- $start = $start ? '&start=' . $start : '';
- $end = ( isset( $qargs['end'] ) && intval( $qargs['end'] ) ) ? '&end=' . (int) $qargs['end'] : '';
- $hd = ( isset( $qargs['hd'] ) && intval( $qargs['hd'] ) ) ? '&hd=' . (int) $qargs['hd'] : '';
- $vq = ( isset( $qargs['vq'] ) && in_array( $qargs['vq'], array('hd720','hd1080') ) ) ? '&vq=' . $qargs['vq'] : '';
- $cc = ( isset( $qargs['cc_load_policy'] ) ) ? '&cc_load_policy=1' : '';
- $cc_lang = ( isset( $qargs['cc_lang_pref'] ) ) ? '&cc_lang_pref=' . preg_replace( '/[^_a-z0-9-]/i', '', $qargs['cc_lang_pref'] ) : '';
- $wmode = ( isset( $qargs['wmode'] ) && in_array( strtolower( $qargs['wmode'] ), array( 'opaque', 'window', 'transparent' ) ) ) ? $qargs['wmode'] : 'transparent';
- $theme = ( isset( $qargs['theme'] ) && in_array( strtolower( $qargs['theme'] ), array( 'dark', 'light' ) ) ) ? '&theme=' . $qargs['theme'] : '';
- $autoplay = '';
- /**
- * 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( $qargs['autoplay'] ) )
- $autoplay = '&autoplay=' . (int)$qargs['autoplay'];
- $alignmentcss = 'text-align:center;';
- if ( isset( $qargs['align'] ) ) {
- switch ( $qargs['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;
- }
- }
- if ( ( isset( $url['path'] ) && '/videoseries' == $url['path'] ) || isset( $qargs['list'] ) ) {
- $html = "<span class='embed-youtube' style='$alignmentcss display: block;'><iframe class='youtube-player' type='text/html' width='$w' height='$h' src='" . esc_url( set_url_scheme( "http://www.youtube.com/embed/videoseries?list=$id&hl=en_US" ) ) . "' frameborder='0' allowfullscreen='true'></iframe></span>";
- } else {
- $html = "<span class='embed-youtube' style='$alignmentcss display: block;'><iframe class='youtube-player' type='text/html' width='$w' height='$h' src='" . esc_url( set_url_scheme( "http://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$autoplay{$cc}{$cc_lang}" ) ) . "' frameborder='0' allowfullscreen='true'></iframe></span>";
- }
- /**
- * 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;
- }
- function youtube_shortcode( $atts ) {
- return youtube_id( ( isset ( $atts[0] ) ) ? ltrim( $atts[0] , '=' ) : shortcode_new_to_old_params( $atts ) );
- }
- add_shortcode( 'youtube', 'youtube_shortcode' );
- /**
- * For bare URLs on their own line of the form
- * http://www.youtube.com/v/9FhMMmqzbD8?fs=1&hl=en_US
- */
- function wpcom_youtube_embed_crazy_url( $matches, $attr, $url ) {
- return youtube_id( $url );
- }
- function wpcom_youtube_embed_crazy_url_init() {
- wp_embed_register_handler( 'wpcom_youtube_embed_crazy_url', '#https?://(?:www\.)?(?:youtube.com/(?:v/|playlist|watch[/\#?])|youtu\.be/).*#i', 'wpcom_youtube_embed_crazy_url' );
- }
- add_action( 'init', 'wpcom_youtube_embed_crazy_url_init' );
- /**
- * Allow oEmbeds in Jetpack's Comment form.
- *
- * @module shortcodes
- *
- * @since 2.8.0
- *
- * @param int get_option('embed_autourls') Option to automatically embed all plain text URLs.
- */
- if ( apply_filters( 'jetpack_comments_allow_oembed', get_option('embed_autourls') ) ) {
- // We attach wp_kses_post to comment_text in default-filters.php with priority of 10 anyway, so the iframe gets filtered out.
- if ( ! is_admin() ) {
- // 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
- */
- 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 );