Add upstream

wp-content/plugins/jetpack/modules/shortcodes/spotify.php

@@ -0,0 +1,99 @@
+<?php
+/**
+ * Spotify shortcode.
+ *
+ * Usage:
+ * [spotify id="spotify:track:4bz7uB4edifWKJXSDxwHcs" width="400" height="100"]
+ *
+ * @package Jetpack
+ */
+
+if ( ! shortcode_exists( 'spotify' ) ) {
+	add_shortcode( 'spotify', 'jetpack_spotify_shortcode' );
+
+	if ( get_option( 'embed_autourls' ) ) {
+		// If user enabled autourls, also convert syntax like spotify:track:4bz7uB4edifWKJXSDxwHcs.
+		add_filter( 'the_content', 'jetpack_spotify_embed_ids', 7 );
+	}
+}
+
+/**
+ * Parse shortcode arguments and render its output.
+ *
+ * @since 4.5.0
+ *
+ * @param array  $atts    Shortcode attributes.
+ * @param string $content Post Content.
+ *
+ * @return string
+ */
+function jetpack_spotify_shortcode( $atts = array(), $content = '' ) {
+
+	if ( ! empty( $content ) ) {
+		$id = $content;
+	} elseif ( ! empty( $atts['id'] ) ) {
+		$id = $atts['id'];
+	} elseif ( ! empty( $atts[0] ) ) {
+		$id = $atts[0];
+	} else {
+		return '<!-- Missing Spotify ID -->';
+	}
+
+	if ( empty( $atts['width'] ) ) {
+		$atts['width'] = 300;
+	}
+
+	if ( empty( $atts['height'] ) ) {
+		$atts['height'] = 380;
+	}
+
+	$atts['width']  = (int) $atts['width'];
+	$atts['height'] = (int) $atts['height'];
+
+	// Spotify accepts both URLs and their Spotify ID format, so let them sort it out and validate.
+	$embed_url = add_query_arg( 'uri', rawurlencode( $id ), 'https://embed.spotify.com/' );
+
+	return '<iframe src="' . esc_url( $embed_url ) . '" style="display:block; margin:0 auto; width:' . esc_attr( $atts['width'] ) . 'px; height:' . esc_attr( $atts['height'] ) . 'px;" frameborder="0" allowtransparency="true"></iframe>';
+}
+
+/**
+ * Turn text like this on it's own line into an embed: spotify:track:4bz7uB4edifWKJXSDxwHcs
+ * The core WordPress embed functionality only works with URLs
+ * Modified version of WP_Embed::autoembed()
+ *
+ * @since 4.5.0
+ *
+ * @param string $content Post content.
+ *
+ * @return string
+ */
+function jetpack_spotify_embed_ids( $content ) {
+	$textarr = wp_html_split( $content );
+
+	foreach ( $textarr as &$element ) {
+		if ( '' === $element || '<' === $element[0] ) {
+			continue;
+		}
+
+		if ( substr( ltrim( $element ), 0, 8 ) !== 'spotify:' ) {
+			continue;
+		}
+
+		$element = preg_replace_callback( '|^\s*(spotify:[^\s"]+:[^\s"]+)\s*$|im', 'jetpack_spotify_embed_ids_callback', $element );
+	}
+
+	return implode( '', $textarr );
+}
+
+/**
+ * Call shortcode with ID provided by matching pattern.
+ *
+ * @since 4.5.0
+ *
+ * @param array $matches Array of matches for Spofify links.
+ *
+ * @return string
+ */
+function jetpack_spotify_embed_ids_callback( $matches ) {
+	return "\n" . jetpack_spotify_shortcode( array(), $matches[1] ) . "\n";
+}