<?php

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/**

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* SoundCloud Shortcode

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* Based on this plugin: https://wordpress.org/plugins/soundcloud-shortcode/

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*

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* Credits:

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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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* Examples:

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* [soundcloud]http://soundcloud.com/forss/flickermood[/soundcloud]

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* [soundcloud url="https://api.soundcloud.com/tracks/156661852" params="auto_play=false&amp;hide_related=false&amp;visual=false" width="100%" height="450" iframe="true" /]

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* [soundcloud url="https://api.soundcloud.com/tracks/156661852" params="auto_play=false&amp;hide_related=false&amp;visual=true" width="100%" height="450" iframe="true" /]

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* [soundcloud url="https://soundcloud.com/closetorgan/paul-is-dead" width=400 height=400]

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* [soundcloud url="https://soundcloud.com/closetorgan/sets/smells-like-lynx-africa-private"]

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* [soundcloud url="https://soundcloud.com/closetorgan/sets/smells-like-lynx-africa-private" color="00cc11"]

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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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* @package automattic/jetpack

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*/

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if ( ! defined( 'ABSPATH' ) ) {

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exit( 0 );

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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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global $wp_embed;

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// Custom shortcode options.

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$shortcode_options = array_merge(

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array( 'url' => trim( $content ) ),

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is_array( $atts ) ? $atts : array()

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);

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// The "url" option is required.

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if ( empty( $shortcode_options['url'] ) ) {

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if ( current_user_can( 'edit_posts' ) ) {

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return esc_html__( 'Please specify a Soundcloud URL.', 'jetpack' );

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} else {

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return '<!-- Missing Soundcloud URL -->';

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}

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}

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// If the shortcode is displayed in a WPCOM notification, display a simple link only.

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if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {

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require_once WP_CONTENT_DIR . '/lib/display-context.php';

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$context = A8C\Display_Context\get_current_context();

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if ( A8C\Display_Context\NOTIFICATIONS === $context ) {

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return sprintf(

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'<a href="%1$s" target="_blank" rel="noopener noreferrer">%1$s</a>',

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esc_url( $shortcode_options['url'] )

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);

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}

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}

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// Turn shortcode option "param" (param=value&param2=value) into array of params.

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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'], ENT_QUOTES | ENT_SUBSTITUTE | ENT_HTML401 ), $shortcode_params );

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$shortcode_options = array_merge(

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$shortcode_options,

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$shortcode_params

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);

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unset( $shortcode_options['params'] );

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}

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$options = shortcode_atts(

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// This list used to include an 'iframe' option. We don't include it anymore as we don't support the Flash player anymore.

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array(

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'url' => '',

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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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'auto_play' => soundcloud_get_option( 'auto_play' ),

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'hide_related' => false,

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'visual' => false,

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'show_comments' => soundcloud_get_option( 'show_comments' ),

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'color' => soundcloud_get_option( 'color' ),

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'show_user' => false,

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'show_reposts' => false,

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),

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$shortcode_options,

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'soundcloud'

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);

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// "width" needs to be an integer.

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if ( ! empty( $options['width'] ) && ! preg_match( '/^\d+$/', $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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// Set default width if not defined.

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$width = ! empty( $options['width'] ) ? absint( $options['width'] ) : '100%';

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// Set default height if not defined.

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if (

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empty( $options['height'] )

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|| (

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// "height" needs to be an integer.

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! empty( $options['height'] )

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&& ! preg_match( '/^\d+$/', $options['height'] )

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)

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) {

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if (

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soundcloud_url_has_tracklist( $options['url'] )

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|| 'true' === $options['visual']

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) {

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$height = 450;

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} else {

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$height = 166;

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}

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} else {

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$height = absint( $options['height'] );

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}

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// Set visual to false when displaying the smallest player.

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if ( '20' === $options['height'] ) {

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$options['visual'] = false;

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}

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if (

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class_exists( 'Jetpack_AMP_Support' )

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&& Jetpack_AMP_Support::is_amp_request()

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&& ! empty( $options['url'] )

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&& 'api.soundcloud.com' !== wp_parse_url( $options['url'], PHP_URL_HOST )

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) {

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// Defer to oEmbed if an oEmbeddable URL is provided.

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return $wp_embed->shortcode( $options, $options['url'] );

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}

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// Build our list of Soundcloud parameters.

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$query_args = array(

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'url' => rawurlencode( $options['url'] ),

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);

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// Add our options, if they are set to true or false.

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foreach ( $options as $name => $value ) {

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if ( 'true' === $value ) {

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$query_args[ $name ] = 'true';

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}

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if ( 'false' === $value || false === $value ) {

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$query_args[ $name ] = 'false';

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}

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}

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// Add the color parameter if it was specified and is a valid color.

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if ( ! empty( $options['color'] ) ) {

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$color = sanitize_hex_color_no_hash( $options['color'] );

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if ( ! empty( $color ) ) {

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$query_args['color'] = $color;

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}

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}

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// Build final embed URL.

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$url = add_query_arg(

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$query_args,

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'https://w.soundcloud.com/player/'

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);

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return sprintf(

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'<iframe width="%1$s" height="%2$d" scrolling="no" frameborder="no" src="%3$s"></iframe>',

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esc_attr( $width ),

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esc_attr( $height ),

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$url

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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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* 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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* Decide if a url has a tracklist

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*

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* @param string $url Soundcloud 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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* 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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$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 = wp_parse_url( html_entity_decode( $match[1], ENT_QUOTES | ENT_SUBSTITUTE | ENT_HTML401 ), 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="' . (int) $hmatch[1] . '"';

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}

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unset( $args['url'] );

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$params = 'params="';

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if ( is_countable( $args ) && 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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if ( jetpack_shortcodes_should_hook_pre_kses() ) {

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add_filter( 'pre_kses', 'jetpack_soundcloud_embed_reversal' );

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}

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