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Editing: tweet.php

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<?php
/**
 * Tweet shortcode.
 * Params map to key value pairs, and all but tweet are optional:
 * tweet = id or permalink url* (Required)
 * align = none|left|right|center
 * width = number in pixels  example: width="300"
 * lang  =  en|fr|de|ko|etc...  language country code.
 * hide_thread = true | false **
 * hide_media  = true | false **
 *
 * Basic:
 * [tweet https://twitter.com/jack/statuses/20 width="350"]
 *
 * More parameters and another tweet syntax admitted:
 * [tweet tweet="https://twitter.com/jack/statuses/20" align="left" width="350" align="center" lang="es"]
 */

add_shortcode( 'tweet', array( 'Jetpack_Tweet', 'jetpack_tweet_shortcode' ) );

class Jetpack_Tweet {

static $provider_args;

/**
	 * Parse shortcode arguments and render its output.
	 *
	 * @since 4.5.0
	 *
	 * @param array $atts Shortcode parameters.
	 *
	 * @return string
	 */
	static public function jetpack_tweet_shortcode( $atts ) {
		$default_atts = array(
			'tweet'       => '',
			'align'       => 'none',
			'width'       => '',
			'lang'        => 'en',
			'hide_thread' => 'false',
			'hide_media'  => 'false',
		);

$attr = shortcode_atts( $default_atts, $atts );

self::$provider_args = $attr;

// figure out the tweet id for the requested tweet
		// supporting both omitted attributes and tweet="tweet_id"
		// and supporting both an id and a URL
		if ( empty( $attr['tweet'] ) && ! empty( $atts[0] ) ) {
			$attr['tweet'] = $atts[0];
		}

if ( ctype_digit( $attr['tweet'] ) ) {
			$id = 'https://twitter.com/jetpack/status/' . $attr['tweet'];
		} else {
			preg_match( '/^http(s|):\/\/twitter\.com(\/\#\!\/|\/)([a-zA-Z0-9_]{1,20})\/status(es)*\/(\d+)$/', $attr['tweet'], $urlbits );

if ( isset( $urlbits[5] ) && intval( $urlbits[5] ) ) {
				$id = 'https://twitter.com/' . $urlbits[3] . '/status/' . intval( $urlbits[5] );
			} else {
				return '';
			}
		}

// Add shortcode arguments to provider URL
		add_filter( 'oembed_fetch_url', array( 'Jetpack_Tweet', 'jetpack_tweet_url_extra_args' ), 10, 3 );

// Fetch tweet
		$output = wp_oembed_get( $id, $atts );

// Clean up filter
		remove_filter( 'oembed_fetch_url', array( 'Jetpack_Tweet', 'jetpack_tweet_url_extra_args' ), 10 );

// Add Twitter widgets.js script to the footer.
		add_action( 'wp_footer', array( 'Jetpack_Tweet', 'jetpack_tweet_shortcode_script' ) );

/** This action is documented in modules/widgets/social-media-icons.php */
		do_action( 'jetpack_bump_stats_extras', 'embeds', 'tweet' );

return $output;
	}

/**
	 * Adds parameters to URL used to fetch the tweet.
	 *
	 * @since 4.5.0
	 *
	 * @param string $provider URL of provider that supplies the tweet we're requesting.
	 * @param string $url      URL of tweet to embed.
	 * @param array  $args     Parameters supplied to shortcode and passed to wp_oembed_get
	 *
	 * @return string
	 */
	static public function jetpack_tweet_url_extra_args( $provider, $url, $args = array() ) {
		foreach ( self::$provider_args as $key => $value ) {
			switch ( $key ) {
				case 'align':
				case 'lang':
				case 'hide_thread':
				case 'hide_media':
					$provider = add_query_arg( $key, $value, $provider );
					break;
			}
		}

// Disable script since we're enqueing it in our own way in the footer
		$provider = add_query_arg( 'omit_script', 'true', $provider );

// Twitter doesn't support maxheight so don't send it
		$provider = remove_query_arg( 'maxheight', $provider );

/**
		 * Filter the Twitter Partner ID.
		 *
		 * @module shortcodes
		 *
		 * @since 4.6.0
		 *
		 * @param string $partner_id Twitter partner ID.
		 */
		$partner = apply_filters( 'jetpack_twitter_partner_id', 'jetpack' );

// Add Twitter partner ID to track embeds from Jetpack
		if ( ! empty( $partner ) ) {
			$provider = add_query_arg( 'partner', $partner, $provider );
		}

return $provider;
	}

/**
	 * Enqueue front end assets.
	 *
	 * @since 4.5.0
	 */
	static public function jetpack_tweet_shortcode_script() {
		if ( ! wp_script_is( 'twitter-widgets', 'registered' ) ) {
			wp_register_script( 'twitter-widgets', set_url_scheme( 'http://platform.twitter.com/widgets.js' ), array(), JETPACK__VERSION, true );
			wp_print_scripts( 'twitter-widgets' );
		}
	}

} // class end

Editing: tweet.php

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