Completed
Push — add/crowdsignal-shortcode ( 65c42e...1b4a63 )
by Kuba
14:46 queued 06:22
created

soundcloud.php ➔ soundcloud_flash_widget()   B

Complexity

Conditions 6
Paths 32

Size

Total Lines 26

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
cc 6
nc 32
nop 1
dl 0
loc 26
rs 8.8817
c 0
b 0
f 0
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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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Original version: Johannes Wagener <[email protected]>
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Options support: Tiffany Conroy <[email protected]>
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HTML5 & oEmbed support: Tim Bormans <[email protected]>
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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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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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All custom modifs are annoted with "A8C" keyword in comment.
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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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 * Register SoundCloud shortcode
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 */
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add_shortcode( 'soundcloud', 'soundcloud_shortcode' );
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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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	// Custom shortcode options
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	$shortcode_options = array_merge( array( 'url' => trim( $content ) ), is_array( $atts ) ? $atts : array() );
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	// Turn shortcode option "param" (param=value&param2=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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	// 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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	// 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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	// 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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	// 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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	// 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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	// 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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	// The "iframe" option must be true to load the iframe widget
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	$iframe = soundcloud_booleanize( $options['iframe'] );
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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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	// 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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		),
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		$options['params']
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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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 * 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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	return $value === '' ? $default : $value;
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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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 * 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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 * 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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	// 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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	return 'src="' . $url['scheme'] . '://' . $url['host'] . $url['path'] . '?' . $query;
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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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	// 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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	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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 * 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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	return preg_replace(
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		'/\s\s+/',
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		'',
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		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>',
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			$width,
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			$height,
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			$url,
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			$width,
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			$height,
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			$url
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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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		<iframe width="100%" height="450" scrolling="no" frameborder="no" src="https://w.soundcloud.com/player/?url=https%3A//api.soundcloud.com/tracks/150745932&amp;auto_play=false&amp;hide_related=false&amp;show_comments=true&amp;show_user=true&amp;show_reposts=false&amp;visual=true"></iframe>
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	*/
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	$regexes = array();
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	$regexes[] = '#<iframe[^>]+?src="((?:https?:)?//w\.soundcloud\.com/player/[^"\']++)"[^>]*+>\s*?</iframe>#i';
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	$regexes[] = '#&lt;iframe(?:[^&]|&(?!gt;))+?src="((?:https?:)?//w\.soundcloud\.com/player/[^"\']++)"(?:[^&]|&(?!gt;))*+&gt;\s*?&lt;/iframe&gt;#i';
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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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		foreach ( $matches as $match ) {
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			// if pasted from the visual editor - prevent double encoding
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			$match[1] = str_replace( '&amp;amp;', '&amp;', $match[1] );
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			$args = parse_url( html_entity_decode( $match[1] ), PHP_URL_QUERY );
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			$args = wp_parse_args( $args );
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			if ( ! preg_match( '#^(?:https?:)?//api\.soundcloud\.com/.+$#i', $args['url'], $url_matches ) ) {
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				continue;
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			}
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			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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			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 ) . '&amp;';
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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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			$shortcode = '[soundcloud url="' . esc_url( $url_matches[0] ) . '" ' . $params . ' width="100%"' . $height . ' iframe="true" /]';
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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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	return $content;
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}
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add_filter( 'pre_kses', 'jetpack_soundcloud_embed_reversal' );
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