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<?php |
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|
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/** |
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* Required for class.media-extractor.php to match expected function naming convention. |
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* |
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* @param $url Can be just the $url or the whole $atts array |
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* @return bool|mixed The Youtube video ID via jetpack_get_youtube_id |
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*/ |
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|
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function jetpack_shortcode_get_youtube_id( $url ) { |
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return jetpack_get_youtube_id( $url ); |
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} |
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|
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/** |
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* @param $url Can be just the $url or the whole $atts array |
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* @return bool|mixed The Youtube video ID |
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*/ |
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function jetpack_get_youtube_id( $url ) { |
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// Do we have an $atts array? Get first att |
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if ( is_array( $url ) ) { |
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$url = reset( $url ); |
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} |
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|
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$url = youtube_sanitize_url( $url ); |
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$url = parse_url( $url ); |
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$id = false; |
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|
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if ( ! isset( $url['query'] ) ) |
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return false; |
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|
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parse_str( $url['query'], $qargs ); |
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|
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if ( ! isset( $qargs['v'] ) && ! isset( $qargs['list'] ) ) |
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return false; |
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|
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if ( isset( $qargs['list'] ) ) |
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$id = preg_replace( '|[^_a-z0-9-]|i', '', $qargs['list'] ); |
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|
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if ( empty( $id ) ) |
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$id = preg_replace( '|[^_a-z0-9-]|i', '', $qargs['v'] ); |
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|
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return $id; |
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} |
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|
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if ( !function_exists( 'youtube_sanitize_url' ) ) : |
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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. |
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* |
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* @param string $url |
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* @return string The normalized URL |
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*/ |
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function youtube_sanitize_url( $url ) { |
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$url = trim( $url, ' "' ); |
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$url = trim( $url ); |
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$url = str_replace( array( 'youtu.be/', '/v/', '#!v=', '&', '&', 'playlist' ), array( 'youtu.be/?v=', '/?v=', '?v=', '&', '&', 'videoseries' ), $url ); |
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|
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// Replace any extra question marks with ampersands - the result of a URL like "http://www.youtube.com/v/9FhMMmqzbD8?fs=1&hl=en_US" being passed in. |
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$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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* Merge in three string helper functions from WPCOM. |
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* |
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* @see WPCOM/wp-content/mu-plugins/string-helpers.php |
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*/ |
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if ( ! function_exists( 'wp_startswith' ) ) : |
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function wp_startswith( $haystack, $needle ) { |
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return 0 === strpos( $haystack, $needle ); |
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} |
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endif; |
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|
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|
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if ( ! function_exists( 'wp_endswith' ) ) : |
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function wp_endswith( $haystack, $needle ) { |
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return $needle === substr( $haystack, -strlen( $needle )); |
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} |
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endif; |
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|
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if ( ! function_exists( 'wp_in' ) ) : |
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function wp_in( $needle, $haystack ) { |
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return false !== strpos( $haystack, $needle ); |
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} |
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endif; |
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