*/
$regexes = array();
// new style js
$regexes[] = '#]+?class="instagram-media"[^>](.+?)>(.+?)]+?src="(https?:)?//platform\.instagram\.com/(.+?)/embeds\.js">#ix';
// Let's play nice with the visual editor too.
$regexes[] = '#<blockquote(?:[^&]|&(?!gt;))+?class="instagram-media"(?:[^&]|&(?!gt;))(.+?)>(.+?)</blockquote><script(?:[^&]|&(?!gt;))+?src="(https?:)?//platform\.instagram\.com/(.+?)/embeds\.js"(?:[^&]|&(?!gt;))*+></script>#ix';
// old style iframe
$regexes[] = '#]+?src="(?:https?:)?//instagram\.com/p/([^"\'/]++)[^"\']*?"[^>]*+>\s*?#i';
// Let's play nice with the visual editor too.
$regexes[] = '#<iframe(?:[^&]|&(?!gt;))+?src="(?:https?:)?//instagram\.com/p/([^"\'/]++)[^"\']*?"(?:[^&]|&(?!gt;))*+>\s*?</iframe>#i';
foreach ( $regexes as $regex ) {
if ( ! preg_match_all( $regex, $content, $matches, PREG_SET_ORDER ) ) {
continue;
}
foreach ( $matches as $match ) {
if ( ! preg_match( '#(https?:)?//instagr(\.am|am\.com)/p/([^/]*)#i', $match[2], $url_matches ) ) {
continue;
}
// Since we support Instagram via oEmbed, we simply leave a link on a line by itself.
$replace_regex = sprintf( '#\s*%s\s*#', preg_quote( $match[0], '#' ) );
$url = esc_url( $url_matches[0] );
$content = preg_replace( $replace_regex, sprintf( "\n\n%s\n\n", $url ), $content );
/** This action is documented in modules/shortcodes/youtube.php */
do_action( 'jetpack_embed_to_shortcode', 'instagram', $url );
}
}
return $content;
}
add_filter( 'pre_kses', 'jetpack_instagram_embed_reversal' );
/**
* Instagram
*/
wp_oembed_remove_provider( '#https?://(www\.)?instagr(\.am|am\.com)/p/.*#i' ); // remove core's oEmbed support so we can override
wp_embed_register_handler( 'jetpack_instagram', '#http(s?)://(www\.)?instagr(\.am|am\.com)/p/([^/]*)#i', 'jetpack_instagram_handler' );
function jetpack_instagram_handler( $matches, $atts, $url ) {
global $content_width;
// keep a copy of the passed-in URL since it's modified below
$passed_url = $url;
$max_width = 698;
$min_width = 320;
if ( is_feed() ) {
$media_url = sprintf( 'http://instagr.am/p/%s/media/?size=l', $matches[4] );
return sprintf( '
', esc_url( $url ), esc_attr__( 'View on Instagram', 'jetpack' ), esc_url( $media_url ) );
}
$atts = shortcode_atts( array(
'width' => isset( $content_width ) ? $content_width : $max_width,
'hidecaption' => false,
), $atts );
$atts['width'] = absint( $atts['width'] );
if ( $atts['width'] > $max_width ) {
$atts['width'] = $max_width;
} elseif ( $atts['width'] < $min_width ) {
$atts['width'] = $min_width;
}
// remove the modal param from the URL
$url = remove_query_arg( 'modal', $url );
// force .com instead of .am for https support
$url = str_replace( 'instagr.am', 'instagram.com', $url );
// The oembed endpoint expects HTTP, but HTTP requests 301 to HTTPS
$instagram_http_url = str_replace( 'https://', 'http://', $url );
$instagram_https_url = str_replace( 'http://', 'https://', $url );
$url_args = array(
'url' => $instagram_http_url,
'maxwidth' => $atts['width'],
);
if ( $atts['hidecaption'] ) {
$url_args['hidecaption'] = 'true';
}
$url = esc_url_raw( add_query_arg( $url_args, 'https://api.instagram.com/oembed/' ) );
/**
* Filter Object Caching for response from Instagram.
*
* Allow enabling of object caching for the response sent by Instagram when querying for Instagram image HTML.
*
* @module shortcodes
*
* @since 3.3.0
*
* @param bool false Object caching is off by default.
* @param array $matches Array of Instagram URLs found in the post.
* @param array $atts Instagram Shortcode attributes.
* @param string $passed_url Instagram API URL.
*/
$response_body_use_cache = apply_filters( 'instagram_cache_oembed_api_response_body', false, $matches, $atts, $passed_url );
$response_body = false;
if ( $response_body_use_cache ) {
$cache_key = 'oembed_response_body_' . md5( $url );
$response_body = wp_cache_get( $cache_key, 'instagram_embeds' );
}
if ( ! $response_body ) {
// Not using cache (default case) or cache miss
$instagram_response = wp_remote_get( $url, array( 'redirection' => 0 ) );
if ( is_wp_error( $instagram_response ) || 200 != $instagram_response['response']['code'] || empty( $instagram_response['body'] ) ) {
return '';
}
$response_body = json_decode( $instagram_response['body'] );
if ( $response_body_use_cache ) {
// if caching it is short-lived since this is a "Cache-Control: no-cache" resource
wp_cache_set( $cache_key, $response_body, 'instagram_embeds', HOUR_IN_SECONDS + mt_rand( 0, HOUR_IN_SECONDS ) );
}
}
if ( ! empty( $response_body->html ) ) {
wp_enqueue_script( 'jetpack-instagram-embed', plugins_url( 'js/instagram.js', __FILE__ ), array( 'jquery' ), false, true );
// there's a script in the response, which we strip on purpose since it's added by this ^ script
$ig_embed = preg_replace( '@<(script)[^>]*?>.*?@si', '', $response_body->html );
return $ig_embed;
}
return '';
}
// filters instagram's username format to the expected format that matches the embed handler
wp_embed_register_handler( 'jetpack_instagram_alternate_format', '#http(s?)://instagr(\.am|am\.com)/([^/]*)/p/([^/]*)#i', 'jetpack_instagram_alternate_format_handler' );
function jetpack_instagram_alternate_format_handler( $matches, $atts, $url ) {
$url = esc_url_raw( 'https://instagram.com/p/' . $matches[4] );
$matches[0] = $url;
$matches[3] = $matches[4];
unset( $matches[4] );
return jetpack_instagram_handler( $matches, $atts, $url );
}
// [instagram url="http://instagram.com/p/PSbF9sEIGP/"]
// [instagram url="http://instagram.com/p/PSbF9sEIGP/" width="300"]
add_shortcode( 'instagram', 'jetpack_shortcode_instagram' );
function jetpack_shortcode_instagram( $atts ) {
global $wp_embed;
if ( empty( $atts['url'] ) ) {
return '';
}
return $wp_embed->shortcode( $atts, $atts['url'] );
}