Add upstream

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

@@ -0,0 +1,64 @@
+<?php
+/**
+ * Pinterest embeds
+ *
+ * Based on "Board Widget" example here: http://business.pinterest.com/widget-builder/#code
+ *
+ * Example URL: https://pinterest.com/pin/129056345550241149/
+ * Second Example URL: https://uk.pinterest.com/annsawesomepins/travel/
+ *
+ * @package Jetpack
+ */
+
+wp_embed_register_handler(
+	'pinterest',
+	'#'
+	. 'https?://'
+	. '(?:www\.)?'
+	. '(?:[a-z]{2}\.)?'
+	. 'pinterest\.[a-z.]+/'
+	. '([^/]+)'
+	. '(/[^/]+)?'
+	. '#',
+	'pinterest_embed_handler'
+);
+
+/**
+ * Callback to modify output of embedded Pinterest posts.
+ *
+ * @param array $matches Regex partial matches against the URL passed.
+ * @param array $attr    Attributes received in embed response.
+ * @param array $url     Requested URL to be embedded.
+ */
+function pinterest_embed_handler( $matches, $attr, $url ) {
+	// Pinterest's JS handles making the embed.
+	$script_src = '//assets.pinterest.com/js/pinit.js';
+
+	wp_enqueue_script( 'pinterest-embed', $script_src, array(), JETPACK__VERSION, true );
+
+	$path = wp_parse_url( $url, PHP_URL_PATH );
+	if ( 0 === strpos( $path, '/pin/' ) ) {
+		$embed_type = 'embedPin';
+	} elseif ( preg_match( '#^/([^/]+)/?$#', $path ) ) {
+		$embed_type = 'embedUser';
+	} elseif ( preg_match( '#^/([^/]+)/([^/]+)/?$#', $path ) ) {
+		$embed_type = 'embedBoard';
+	} else {
+		if ( current_user_can( 'edit_posts' ) ) {
+			return __( 'Sorry, that Pinterest URL was not recognized.', 'jetpack' );
+		}
+		return;
+	}
+
+	$return = sprintf( '<a data-pin-do="%s" href="%s"></a>', esc_attr( $embed_type ), esc_url( $url ) );
+
+	// If we're generating an embed view for the WordPress Admin via ajax.
+	if ( doing_action( 'wp_ajax_parse-embed' ) ) {
+		$return .= sprintf(
+			'<script src="%s"></script>', // phpcs:ignore WordPress.WP.EnqueuedResources.NonEnqueuedScript
+			esc_url( $script_src )
+		);
+	}
+
+	return $return;
+}