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<?php |
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/* |
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Plugin Name: SoundCloud Shortcode |
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Plugin URI: https://wordpress.org/extend/plugins/soundcloud-shortcode/ |
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Description: Converts SoundCloud WordPress shortcodes to a SoundCloud widget. Example: [soundcloud]http://soundcloud.com/forss/flickermood[/soundcloud] |
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Version: 2.3 |
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Author: SoundCloud Inc., simplified for Jetpack by Automattic, Inc. |
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Author URI: http://soundcloud.com |
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License: GPLv2 |
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|
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Original version: Johannes Wagener <johannes@soundcloud.com> |
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Options support: Tiffany Conroy <tiffany@soundcloud.com> |
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HTML5 & oEmbed support: Tim Bormans <tim@soundcloud.com> |
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*/ |
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|
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/* |
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A8C: Taken from http://plugins.svn.wordpress.org/soundcloud-shortcode/trunk/ |
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at revision 664386. |
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|
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Commenting out (instead of removing) and replacing code with custom modifs |
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so it's eqsy to see what differs from the standard DOTORG version. |
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|
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All custom modifs are annoted with "A8C" keyword in comment. |
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*/ |
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|
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/** |
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* Register oEmbed provider |
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*/ |
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|
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/* A8C: oEmbed is handled now in core; see wp-includes/class-oembed.php |
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wp_oembed_add_provider( '#https?://(?:api\.)?soundcloud\.com/.*#i', 'http://soundcloud.com/oembed', true ); |
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*/ |
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|
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|
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/** |
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* Register SoundCloud shortcode |
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*/ |
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|
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add_shortcode( 'soundcloud', 'soundcloud_shortcode' ); |
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|
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/** |
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* SoundCloud shortcode handler |
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* |
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* @param string|array $atts The attributes passed to the shortcode like [soundcloud attr1="value" /]. |
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* Is an empty string when no arguments are given. |
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* @param string $content The content between non-self closing [soundcloud]...[/soundcloud] tags. |
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* |
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* @return string Widget embed code HTML |
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*/ |
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function soundcloud_shortcode( $atts, $content = null ) { |
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|
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// Custom shortcode options |
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$shortcode_options = array_merge( array( 'url' => trim( $content ) ), is_array( $atts ) ? $atts : array() ); |
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|
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// Turn shortcode option "param" (param=value¶m2=value) into array |
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$shortcode_params = array(); |
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if ( isset( $shortcode_options['params'] ) ) { |
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parse_str( html_entity_decode( $shortcode_options['params'] ), $shortcode_params ); |
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} |
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$shortcode_options['params'] = $shortcode_params; |
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|
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/* A8C: The original plugin exposes options we don't. SoundCloud omits "visual" shortcode |
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option when false, so if logic here remains, impossible to have non-visual shortcode. |
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$player_type = soundcloud_get_option( 'player_type', 'visual' ); |
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$isIframe = $player_type !== 'flash'; |
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$isVisual = ! $player_type || $player_type === 'visual' || $shortcode_options['visual']; |
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*/ |
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|
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// User preference options |
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$plugin_options = array_filter( |
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array( |
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'iframe' => true, // A8C: See above comment; flash is not a supported option |
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'width' => soundcloud_get_option( 'player_width' ), |
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'height' => soundcloud_url_has_tracklist( $shortcode_options['url'] ) ? soundcloud_get_option( 'player_height_multi' ) : soundcloud_get_option( 'player_height' ), |
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'params' => array_filter( |
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array( |
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'auto_play' => soundcloud_get_option( 'auto_play' ), |
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'show_comments' => soundcloud_get_option( 'show_comments' ), |
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'color' => soundcloud_get_option( 'color' ), |
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'visual' => 'false', // A8C: Merged with params below at $options assignment |
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) |
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), |
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) |
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); |
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|
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// Needs to be an array |
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if ( ! isset( $plugin_options['params'] ) ) { |
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$plugin_options['params'] = array(); |
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} |
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|
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// plugin options < shortcode options |
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$options = array_merge( |
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$plugin_options, |
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$shortcode_options |
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); |
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|
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// plugin params < shortcode params |
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$options['params'] = array_merge( |
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$plugin_options['params'], |
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$shortcode_options['params'] |
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); |
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|
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// The "url" option is required |
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if ( ! isset( $options['url'] ) ) { |
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return ''; |
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} else { |
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$options['url'] = trim( $options['url'] ); |
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} |
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|
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// Both "width" and "height" need to be integers |
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if ( isset( $options['width'] ) && ! preg_match( '/^\d+$/', $options['width'] ) ) { |
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// set to 0 so oEmbed will use the default 100% and WordPress themes will leave it alone |
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$options['width'] = 0; |
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} |
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if ( isset( $options['height'] ) && ! preg_match( '/^\d+$/', $options['height'] ) ) { |
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unset( $options['height'] ); |
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} |
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|
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// The "iframe" option must be true to load the iframe widget |
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$iframe = soundcloud_booleanize( $options['iframe'] ); |
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|
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// Remove visual parameter from Flash widget, when it's false because that's the default, or when displaying the smallest player |
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if ( $options['params']['visual'] && ( ! $iframe || ! soundcloud_booleanize( $options['params']['visual'] ) || ( isset( $options['height'] ) && '20' == $options['height'] ) ) ) { |
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unset( $options['params']['visual'] ); |
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} |
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|
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// Merge in "url" value |
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$options['params'] = array_merge( |
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array( |
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'url' => $options['url'], |
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), $options['params'] |
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); |
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|
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// Return html embed code |
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if ( $iframe ) { |
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return soundcloud_iframe_widget( $options ); |
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} else { |
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return soundcloud_flash_widget( $options ); |
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} |
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} |
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|
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/** |
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* Plugin options getter |
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* |
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* @param string|array $option Option name |
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* @param mixed $default Default value |
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* |
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* @return mixed Option value |
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*/ |
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function soundcloud_get_option( $option, $default = false ) { |
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$value = get_option( 'soundcloud_' . $option ); |
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|
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return $value === '' ? $default : $value; |
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} |
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|
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/** |
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* Booleanize a value |
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* |
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* @param boolean|string $value |
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* |
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* @return boolean |
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*/ |
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function soundcloud_booleanize( $value ) { |
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return is_bool( $value ) ? $value : $value === 'true' ? true : false; |
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} |
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|
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/** |
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* Decide if a url has a tracklist |
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* |
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* @param string $url |
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* |
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* @return boolean |
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*/ |
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function soundcloud_url_has_tracklist( $url ) { |
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return preg_match( '/^(.+?)\/(sets|groups|playlists)\/(.+?)$/', $url ); |
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} |
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|
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/** |
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* Parameterize url |
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* |
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* @param array $match Matched regex |
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* |
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* @return string Parameterized url |
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*/ |
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function soundcloud_oembed_params_callback( $match ) { |
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global $soundcloud_oembed_params; |
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|
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// Convert URL to array |
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$url = parse_url( urldecode( $match[1] ) ); |
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// Convert URL query to array |
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parse_str( $url['query'], $query_array ); |
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// Build new query string |
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$query = http_build_query( array_merge( $query_array, $soundcloud_oembed_params ) ); |
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|
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return 'src="' . $url['scheme'] . '://' . $url['host'] . $url['path'] . '?' . $query; |
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} |
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|
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/** |
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* Iframe widget embed code |
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* |
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* @param array $options Parameters |
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* |
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* @return string Iframe embed code |
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*/ |
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function soundcloud_iframe_widget( $options ) { |
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|
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// Build URL |
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$url = set_url_scheme( 'https://w.soundcloud.com/player/?' . http_build_query( $options['params'] ) ); |
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// Set default width if not defined |
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$width = isset( $options['width'] ) && $options['width'] !== 0 ? $options['width'] : '100%'; |
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// Set default height if not defined |
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$height = isset( $options['height'] ) && $options['height'] !== 0 |
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? $options['height'] |
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: ( soundcloud_url_has_tracklist( $options['url'] ) || ( isset( $options['params']['visual'] ) && soundcloud_booleanize( $options['params']['visual'] ) ) ? '450' : '166' ); |
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|
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return sprintf( '<iframe width="%s" height="%s" scrolling="no" frameborder="no" src="%s"></iframe>', $width, $height, $url ); |
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} |
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|
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/** |
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* Legacy Flash widget embed code |
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* |
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* @param array $options Parameters |
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* |
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* @return string Flash embed code |
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*/ |
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function soundcloud_flash_widget( $options ) { |
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// Build URL |
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$url = set_url_scheme( 'https://player.soundcloud.com/player.swf?' . http_build_query( $options['params'] ) ); |
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// Set default width if not defined |
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$width = isset( $options['width'] ) && $options['width'] !== 0 ? $options['width'] : '100%'; |
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// Set default height if not defined |
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$height = isset( $options['height'] ) && $options['height'] !== 0 ? $options['height'] : ( soundcloud_url_has_tracklist( $options['url'] ) ? '255' : '81' ); |
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|
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return preg_replace( |
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'/\s\s+/', '', sprintf( |
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'<object width="%s" height="%s"> |
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<param name="movie" value="%s" /> |
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<param name="allowscriptaccess" value="always" /> |
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<embed width="%s" height="%s" src="%s" allowscriptaccess="always" type="application/x-shockwave-flash"></embed> |
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</object>', $width, $height, $url, $width, $height, $url |
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) |
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); |
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} |
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|
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/** |
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* SoundCloud Embed Reversal |
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* |
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* Converts a generic HTML embed code from SoundClound into a |
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* WordPress.com-compatibly shortcode. |
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* |
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* @param string $content HTML content. |
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* |
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* @return string Parsed content. |
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*/ |
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function jetpack_soundcloud_embed_reversal( $content ) { |
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if ( ! is_string( $content ) || false === stripos( $content, 'w.soundcloud.com/player' ) ) { |
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return $content; |
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} |
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|
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/* Sample embed code: |
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|
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<iframe width="100%" height="450" scrolling="no" frameborder="no" src="https://w.soundcloud.com/player/?url=https%3A//api.soundcloud.com/tracks/150745932&auto_play=false&hide_related=false&show_comments=true&show_user=true&show_reposts=false&visual=true"></iframe> |
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*/ |
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|
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$regexes = array(); |
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|
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$regexes[] = '#<iframe[^>]+?src="((?:https?:)?//w\.soundcloud\.com/player/[^"\']++)"[^>]*+>\s*?</iframe>#i'; |
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$regexes[] = '#<iframe(?:[^&]|&(?!gt;))+?src="((?:https?:)?//w\.soundcloud\.com/player/[^"\']++)"(?:[^&]|&(?!gt;))*+>\s*?</iframe>#i'; |
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|
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foreach ( $regexes as $regex ) { |
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if ( ! preg_match_all( $regex, $content, $matches, PREG_SET_ORDER ) ) { |
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continue; |
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} |
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|
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foreach ( $matches as $match ) { |
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|
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// if pasted from the visual editor - prevent double encoding |
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$match[1] = str_replace( '&amp;', '&', $match[1] ); |
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|
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$args = parse_url( html_entity_decode( $match[1] ), PHP_URL_QUERY ); |
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$args = wp_parse_args( $args ); |
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|
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if ( ! preg_match( '#^(?:https?:)?//api\.soundcloud\.com/.+$#i', $args['url'], $url_matches ) ) { |
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continue; |
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} |
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|
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if ( ! preg_match( '#height="(\d+)"#i', $match[0], $hmatch ) ) { |
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$height = ''; |
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} else { |
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$height = ' height="' . intval( $hmatch[1] ) . '"'; |
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} |
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|
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unset( $args['url'] ); |
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$params = 'params="'; |
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if ( count( $args ) > 0 ) { |
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foreach ( $args as $key => $value ) { |
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$params .= esc_html( $key ) . '=' . esc_html( $value ) . '&'; |
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} |
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$params = substr( $params, 0, -5 ); |
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} |
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$params .= '"'; |
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|
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$shortcode = '[soundcloud url="' . esc_url( $url_matches[0] ) . '" ' . $params . ' width="100%"' . $height . ' iframe="true" /]'; |
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|
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$replace_regex = sprintf( '#\s*%s\s*#', preg_quote( $match[0], '#' ) ); |
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$content = preg_replace( $replace_regex, sprintf( "\n\n%s\n\n", $shortcode ), $content ); |
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/** This action is documented in modules/shortcodes/youtube.php */ |
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do_action( 'jetpack_embed_to_shortcode', 'soundcloud', $url_matches[0] ); |
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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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|
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add_filter( 'pre_kses', 'jetpack_soundcloud_embed_reversal' ); |
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|
