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<?php |
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/** |
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* Tweet shortcode. |
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* Params map to key value pairs, and all but tweet are optional: |
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* tweet = id or permalink url* (Required) |
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* align = none|left|right|center |
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* width = number in pixels example: width="300" |
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* lang = en|fr|de|ko|etc... language country code. |
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* hide_thread = true | false ** |
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* hide_media = true | false ** |
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* |
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* Basic: |
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* [tweet https://twitter.com/jack/statuses/20 width="350"] |
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* |
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* More parameters and another tweet syntax admitted: |
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* [tweet tweet="https://twitter.com/jack/statuses/20" align="left" width="350" align="center" lang="es"] |
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*/ |
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add_shortcode( 'tweet', array( 'Jetpack_Tweet', 'jetpack_tweet_shortcode' ) ); |
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class Jetpack_Tweet { |
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static $provider_args; |
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/** |
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* Parse shortcode arguments and render its output. |
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* |
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* @since 4.5.0 |
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* |
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* @param array $atts Shortcode parameters. |
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* |
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* @return string |
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*/ |
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static public function jetpack_tweet_shortcode( $atts ) { |
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$default_atts = array( |
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'tweet' => '', |
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'align' => 'none', |
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'width' => '', |
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'lang' => 'en', |
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'hide_thread' => 'false', |
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'hide_media' => 'false', |
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); |
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$attr = shortcode_atts( $default_atts, $atts ); |
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self::$provider_args = $attr; |
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// figure out the tweet id for the requested tweet |
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// supporting both omitted attributes and tweet="tweet_id" |
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// and supporting both an id and a URL |
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if ( empty( $attr['tweet'] ) && ! empty( $atts[0] ) ) { |
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$attr['tweet'] = $atts[0]; |
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} |
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if ( ctype_digit( $attr['tweet'] ) ) { |
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$transient = "jpt_{$attr['tweet']}"; |
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if ( false === $cached_url = get_transient( $transient ) ) { |
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$response = wp_remote_get( "https://twitter.com/statuses/{$attr['tweet']}" ); |
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if ( 200 !== wp_remote_retrieve_response_code( $response ) || ! isset( $response['http_response'] ) ) { |
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// Cache for 15 minutes to avoid making the request over and over. |
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set_transient( $transient, '', 60 * 15 ); |
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return ''; |
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} |
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$http_response = $response['http_response']; |
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$http_response_object = $http_response->get_response_object(); |
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if ( empty( $http_response_object->url ) ) { |
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// Cache for 15 minutes to avoid making the request over and over. |
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set_transient( $transient, '', 60 * 15 ); |
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return ''; |
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} |
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$cached_url = isset( $http_response_object->url ) && ! empty( $http_response_object->url ) |
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? $http_response_object->url |
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: ''; |
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set_transient( $transient, $cached_url, DAY_IN_SECONDS ); |
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} |
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$attr['tweet'] = $cached_url; |
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} |
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preg_match( '/^http(s|):\/\/twitter\.com(\/\#\!\/|\/)([a-zA-Z0-9_]{1,20})\/status(es)*\/(\d+)$/', $attr['tweet'], $urlbits ); |
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if ( isset( $urlbits[5] ) && intval( $urlbits[5] ) ) { |
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$id = 'https://twitter.com/' . $urlbits[3] . '/status/' . intval( $urlbits[5] ); |
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} else { |
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return '<!-- Invalid tweet id -->'; |
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} |
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// Add shortcode arguments to provider URL |
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add_filter( 'oembed_fetch_url', array( 'Jetpack_Tweet', 'jetpack_tweet_url_extra_args' ), 10, 3 ); |
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// Fetch tweet |
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$output = wp_oembed_get( $id, $atts ); |
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// Clean up filter |
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remove_filter( 'oembed_fetch_url', array( 'Jetpack_Tweet', 'jetpack_tweet_url_extra_args' ), 10 ); |
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// Add Twitter widgets.js script to the footer. |
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add_action( 'wp_footer', array( 'Jetpack_Tweet', 'jetpack_tweet_shortcode_script' ) ); |
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/** This action is documented in modules/widgets/social-media-icons.php */ |
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do_action( 'jetpack_bump_stats_extras', 'embeds', 'tweet' ); |
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return $output; |
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} |
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/** |
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* Adds parameters to URL used to fetch the tweet. |
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* |
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* @since 4.5.0 |
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* |
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* @param string $provider URL of provider that supplies the tweet we're requesting. |
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* @param string $url URL of tweet to embed. |
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* @param array $args Parameters supplied to shortcode and passed to wp_oembed_get |
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* |
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* @return string |
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*/ |
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static public function jetpack_tweet_url_extra_args( $provider, $url, $args = array() ) { |
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foreach ( self::$provider_args as $key => $value ) { |
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switch ( $key ) { |
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case 'align': |
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case 'lang': |
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case 'hide_thread': |
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case 'hide_media': |
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$provider = add_query_arg( $key, $value, $provider ); |
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break; |
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} |
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} |
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// Disable script since we're enqueing it in our own way in the footer |
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$provider = add_query_arg( 'omit_script', 'true', $provider ); |
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// Twitter doesn't support maxheight so don't send it |
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$provider = remove_query_arg( 'maxheight', $provider ); |
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return $provider; |
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} |
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/** |
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* Enqueue front end assets. |
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* |
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* @since 4.5.0 |
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*/ |
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static public function jetpack_tweet_shortcode_script() { |
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if ( ! wp_script_is( 'twitter-widgets', 'registered' ) ) { |
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wp_register_script( 'twitter-widgets', set_url_scheme( 'http://platform.twitter.com/widgets.js' ), array(), JETPACK__VERSION, true ); |
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wp_print_scripts( 'twitter-widgets' ); |
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} |
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} |
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} // class end |
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Automattic /
jetpack
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The PSR-2 coding standard requires that all properties in a class have their visibility explicitly declared. If you declare a property using
the property is implicitly global.
To learn more about the PSR-2, please see the PHP-FIG site on the PSR-2.