diff options
Diffstat (limited to 'plugins/jetpack/modules/widgets/twitter.php')
| -rw-r--r-- | plugins/jetpack/modules/widgets/twitter.php | 407 |
1 files changed, 407 insertions, 0 deletions
diff --git a/plugins/jetpack/modules/widgets/twitter.php b/plugins/jetpack/modules/widgets/twitter.php new file mode 100644 index 00000000..ff49abf7 --- /dev/null +++ b/plugins/jetpack/modules/widgets/twitter.php @@ -0,0 +1,407 @@ +<?php + +/** + * Twitter widget class + * Display the latest N tweets from a Twitter screenname as a widget + * Customize screenname, maximum number of tweets displayed, show or hide @replies, and text displayed between tweet text and a timestamp + * + */ + +/** + * Register the widget for use in Appearance -> Widgets + */ +add_action( 'widgets_init', 'jetpack_twitter_widget_init' ); + +function jetpack_twitter_widget_init() { + register_widget( 'Jetpack_Widget_Twitter' ); +} + +class Jetpack_Widget_Twitter extends WP_Widget { + + function __construct() { + parent::__construct( + 'twitter', + apply_filters( 'jetpack_widget_name', __( 'Twitter', 'jetpack' ) ), + array( + 'classname' => 'widget_twitter', + 'description' => __( 'Display your Tweets from Twitter', 'jetpack' ) + ) + ); + + if ( is_active_widget( false, false, $this->id_base ) || is_active_widget( false, false, 'monster' ) ) { + add_action( 'wp_head', array( $this, 'style' ) ); + } + } + + function style() { +?> +<style type="text/css"> +.widget_twitter li { + word-wrap: break-word; +} +</style> +<?php + } + + function widget( $args, $instance ) { + $account = trim( urlencode( $instance['account'] ) ); + + if ( empty( $account ) ) { + if ( current_user_can('edit_theme_options') ) { + echo $args['before_widget']; + echo '<p>' . sprintf( __( 'Please configure your Twitter username for the <a href="%s">Twitter Widget</a>.', 'jetpack' ), admin_url( 'widgets.php' ) ) . '</p>'; + echo $args['after_widget']; + } + + return; + } + + $title = apply_filters( 'widget_title', $instance['title'] ); + + if ( empty( $title ) ) + $title = __( 'Twitter Updates', 'jetpack' ); + + $show = absint( $instance['show'] ); // # of Updates to show + + if ( $show > 200 ) // Twitter paginates at 200 max tweets. update() should not have accepted greater than 20 + $show = 200; + + $hidereplies = (bool) $instance['hidereplies']; + $hidepublicized = (bool) $instance['hidepublicized']; + $include_retweets = (bool) $instance['includeretweets']; + $follow_button = (bool) $instance['followbutton']; + + echo "{$args['before_widget']}{$args['before_title']}<a href='" . esc_url( "http://twitter.com/{$account}" ) . "'>" . esc_html( $title ) . "</a>{$args['after_title']}"; + + $tweets = $this->fetch_twitter_user_stream( $account, $hidereplies, $show, $include_retweets ); + + if ( isset( $tweets['error'] ) && ( isset( $tweets['data'] ) && ! empty( $tweets['data'] ) ) ) + $tweets['error'] = ''; + + if ( empty( $tweets['error'] ) ) { + $before_tweet = isset( $instance['beforetweet'] ) ? stripslashes( wp_filter_post_kses( $instance['beforetweet'] ) ) : ''; + $before_timesince = ( isset( $instance['beforetimesince'] ) && ! empty( $instance['beforetimesince'] ) ) ? esc_html( $instance['beforetimesince'] ) : ' '; + + $this->display_tweets( $show, $tweets['data'], $hidepublicized, $before_tweet, $before_timesince, $account ); + + if ( $follow_button ) + $this->display_follow_button( $account ); + + add_action( 'wp_footer', array( $this, 'twitter_widget_script' ) ); + } else { + echo $tweets['error']; + } + + echo $args['after_widget']; + do_action( 'jetpack_bump_stats_extras', 'widget', 'twitter' ); + } + + function display_tweets( $show, $tweets, $hidepublicized, $before_tweet, $before_timesince, $account ) { + $tweets_out = 0; + ?><ul class='tweets'><?php + + foreach( (array) $tweets as $tweet ) { + if ( $tweets_out >= $show ) + break; + + if ( empty( $tweet['text'] ) ) + continue; + + if( $hidepublicized && false !== strstr( $tweet['source'], 'http://publicize.wp.com/' ) ) + continue; + + $tweet['text'] = esc_html( $tweet['text'] ); // escape here so that Twitter handles in Tweets don't get mangled + $tweet = $this->expand_tco_links( $tweet ); + $tweet['text'] = make_clickable( $tweet['text'] ); + + /* + * Create links from plain text based on Twitter patterns + * @link http://github.com/mzsanford/twitter-text-rb/blob/master/lib/regex.rb Official Twitter regex + */ + $tweet['text'] = preg_replace_callback( '/(^|[^0-9A-Z&\/]+)(#|\xef\xbc\x83)([0-9A-Z_]*[A-Z_]+[a-z0-9_\xc0-\xd6\xd8-\xf6\xf8\xff]*)/iu', array( $this, '_jetpack_widget_twitter_hashtag' ), $tweet['text'] ); + $tweet['text'] = preg_replace_callback( '/([^a-zA-Z0-9_]|^)([@\xef\xbc\xa0]+)([a-zA-Z0-9_]{1,20})(\/[a-zA-Z][a-zA-Z0-9\x80-\xff-]{0,79})?/u', array( $this, '_jetpack_widget_twitter_username' ), $tweet['text'] ); + + if ( isset( $tweet['id_str'] ) ) + $tweet_id = urlencode( $tweet['id_str'] ); + else + $tweet_id = urlencode( $tweet['id'] ); + + ?> + + <li> + <?php echo esc_attr( $before_tweet ) . $tweet['text'] . esc_attr( $before_timesince ) ?> + <a href="<?php echo esc_url( "http://twitter.com/{$account}/statuses/{$tweet_id}" ); ?>" class="timesince"><?php echo esc_html( str_replace( ' ', ' ', $this->time_since( strtotime( $tweet['created_at'] ) ) ) ); ?> ago</a> + </li> + + <?php + + unset( $tweet_it ); + $tweets_out++; + } + + ?></ul><?php + } + + function display_follow_button( $account ) { + global $themecolors; + + $follow_colors = isset( $themecolors['link'] ) ? " data-link-color='#{$themecolors['link']}'" : ''; + $follow_colors .= isset( $themecolors['text'] ) ? " data-text-color='#{$themecolors['text']}'" : ''; + $follow_button_attrs = " class='twitter-follow-button' data-show-count='false'{$follow_colors}"; + + ?><a href="http://twitter.com/<?php echo esc_attr( $account ); ?>" <?php echo $follow_button_attrs; ?>>Follow @<?php echo esc_attr( $account ); ?></a><?php + } + + function expand_tco_links( $tweet ) { + if ( ! empty( $tweet['entities']['urls'] ) && is_array( $tweet['entities']['urls'] ) ) { + foreach ( $tweet['entities']['urls'] as $entity_url ) { + if ( ! empty( $entity_url['expanded_url'] ) ) { + $tweet['text'] = str_replace( + $entity_url['url'], + '<a href="' . esc_url( $entity_url['expanded_url'] ) . '"> ' . esc_html( $entity_url['display_url'] ) . '</a>', + $tweet['text'] + ); + } + } + } + + return $tweet; + } + + function fetch_twitter_user_stream( $account, $hidereplies, $show, $include_retweets ) { + $tweets = get_transient( 'widget-twitter-' . $this->number ); + $the_error = get_transient( 'widget-twitter-error-' . $this->number ); + + if ( ! $tweets ) { + $params = array( + 'screen_name' => $account, // Twitter account name + 'trim_user' => true, // only basic user data (slims the result) + 'include_entities' => true + ); + + // If combined with $count, $exclude_replies only filters that number of tweets (not all tweets up to the requested count). + if ( $hidereplies ) + $params['exclude_replies'] = true; + else + $params['count'] = $show; + + if ( $include_retweets ) + $params['include_rts'] = true; + + $twitter_json_url = esc_url_raw( 'http://api.twitter.com/1/statuses/user_timeline.json?' . http_build_query( $params ), array( 'http', 'https' ) ); + unset( $params ); + + $response = wp_remote_get( $twitter_json_url, array( 'User-Agent' => 'WordPress.com Twitter Widget' ) ); + $response_code = wp_remote_retrieve_response_code( $response ); + + switch( $response_code ) { + case 200 : // process tweets and display + $tweets = json_decode( wp_remote_retrieve_body( $response ), true ); + + if ( ! is_array( $tweets ) || isset( $tweets['error'] ) ) { + do_action( 'jetpack_bump_stats_extras', 'twitter_widget', "request-fail-{$response_code}-bad-data" ); + $the_error = '<p>' . esc_html__( 'Error: Twitter did not respond. Please wait a few minutes and refresh this page.', 'jetpack' ) . '</p>'; + $tweet_cache_expire = 300; + break; + } else { + set_transient( 'widget-twitter-backup-' . $this->number, $tweets, 86400 ); // A one day backup in case there is trouble talking to Twitter + } + + do_action( 'jetpack_bump_stats_extras', 'twitter_widget', 'request-success' ); + $tweet_cache_expire = 900; + break; + case 401 : // display private stream notice + do_action( 'jetpack_bump_stats_extras', 'twitter_widget', "request-fail-{$response_code}" ); + + $tweets = array(); + $the_error = '<p>' . sprintf( esc_html__( 'Error: Please make sure the Twitter account is %1$spublic%2$s.', 'jetpack' ), '<a href="http://support.twitter.com/forums/10711/entries/14016">', '</a>' ) . '</p>'; + $tweet_cache_expire = 300; + break; + default : // display an error message + do_action( 'jetpack_bump_stats_extras', 'twitter_widget', "request-fail-{$response_code}" ); + + $tweets = get_transient( 'widget-twitter-backup-' . $this->number ); + $the_error = '<p>' . esc_html__( 'Error: Twitter did not respond. Please wait a few minutes and refresh this page.', 'jetpack' ) . '</p>'; + $tweet_cache_expire = 300; + break; + } + + set_transient( 'widget-twitter-' . $this->number, $tweets, $tweet_cache_expire ); + set_transient( 'widget-twitter-error-' . $this->number, $the_error, $tweet_cache_expire ); + } + + return array( 'data' => $tweets, 'error' => $the_error ); + } + + function update( $new_instance, $old_instance ) { + $instance = array(); + + $instance['account'] = trim( wp_kses( $new_instance['account'], array() ) ); + $instance['account'] = str_replace( array( 'http://twitter.com/', '/', '@', '#!', ), array( '', '', '', '', ), $instance['account'] ); + + $instance['title'] = wp_kses( $new_instance['title'], array() ); + $instance['show'] = absint( $new_instance['show'] ); + $instance['hidereplies'] = isset( $new_instance['hidereplies'] ); + $instance['hidepublicized'] = isset( $new_instance['hidepublicized'] ); + $instance['includeretweets'] = isset( $new_instance['includeretweets'] ); + + if ( $instance['followbutton'] != $new_instance['followbutton'] ) { + if ( $new_instance['followbutton'] ) + do_action( 'jetpack_bump_stats_extras', 'twitter_widget', 'follow_button_enabled' ); + else + do_action( 'jetpack_bump_stats_extras', 'twitter_widget', 'follow_button_disabled' ); + } + + $instance['followbutton'] = ! isset( $new_instance['followbutton'] ) ? 0 : 1; + $instance['beforetimesince'] = $new_instance['beforetimesince']; + + delete_transient( 'widget-twitter-' . $this->number ); + delete_transient( 'widget-twitter-error-' . $this->number ); + + return $instance; + } + + function form( $instance ) { + //Defaults + $account = isset( $instance['account'] ) ? wp_kses( $instance['account'], array() ) : ''; + $title = isset( $instance['title'] ) ? $instance['title'] : ''; + $show = isset( $instance['show'] ) ? absint( $instance['show'] ) : 5; + $show = ( $show < 1 || 20 < $show ) ? 5 : $show; + $hidereplies = isset( $instance['hidereplies'] ) && ! empty( $instance['hidereplies'] ) ? (bool) $instance['hidereplies'] : false; + $hidepublicized = isset( $instance['hidepublicized'] ) && ! empty( $instance['hidepublicized'] ) ? (bool) $instance['hidepublicized'] : false; + $include_retweets = isset( $instance['includeretweets'] ) && ! empty( $instance['includeretweets'] ) ? (bool) $instance['includeretweets'] : false; + $follow_button = isset( $instance['followbutton'] ) && ! empty( $instance['followbutton'] ) ? 1 : 0; + $before_timesince = isset( $instance['beforetimesince'] ) && ! empty( $instance['beforetimesince'] ) ? esc_attr( $instance['beforetimesince'] ) : ''; + ?> + + <p> + <label for="<?php echo $this->get_field_id( 'title' ); ?>"> + <?php esc_html_e( 'Title:', 'jetpack' )?> + <input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo esc_attr( $title ); ?>" /> + </label> + </p> + + <p> + <label for="<?php echo $this->get_field_id( 'account' ); ?>"> + <?php esc_html_e( 'Twitter username:', 'jetpack' ); ?> <a href="http://support.wordpress.com/widgets/twitter-widget/#twitter-username" target="_blank">( ? )</a> + <input class="widefat" id="<?php echo $this->get_field_id( 'account' ); ?>" name="<?php echo $this->get_field_name( 'account' ); ?>" type="text" value="<?php echo esc_attr( $account ); ?>" /> + </label> + </p> + + <p> + <label for="<?php echo $this->get_field_id( 'show' ); ?>"> + <?php esc_html_e( 'Maximum number of Tweets to show:', 'jetpack' ); ?> + <select id="<?php echo $this->get_field_id( 'show' ); ?>" name="<?php echo $this->get_field_name( 'show' ); ?>"> + <?php + for ( $i = 1; $i <= 20; ++$i ) : + ?><option value="<?php echo esc_attr( $i ); ?>" <?php selected( $show, $i ); ?>><?php echo esc_attr( $i ); ?></option><?php + endfor; + ?> + </select> + </label> + </p> + + <p> + <label for="<?php echo $this->get_field_id( 'hidereplies' ); ?>"> + <input id="<?php echo $this->get_field_id( 'hidereplies' );?>" class="checkbox" type="checkbox" name="<?php echo $this->get_field_name( 'hidereplies' ); ?>" <?php checked( $hidereplies, true ); ?> /> + <?php esc_html_e( 'Hide replies', 'jetpack' ); ?> + </label> + </p> + + <p> + <label for="<?php echo $this->get_field_id( 'hidepublicized' ); ?>"> + <input id="<?php echo $this->get_field_id( 'hidepublicized' ); ?>" class="checkbox" type="checkbox" name="<?php echo $this->get_field_name( 'hidepublicized' ); ?>" <?php checked( $hidepublicized, true ); ?> /> + <?php esc_html_e( 'Hide Tweets pushed by Publicize', 'jetpack' ); ?> + </label> + </p> + + <p> + <label for="<?php echo $this->get_field_id( 'includeretweets' ); ?>"> + <input id="<?php echo $this->get_field_id( 'includeretweets' ); ?>" class="checkbox" type="checkbox" name="<?php echo $this->get_field_name( 'includeretweets' ); ?>" <?php checked( $include_retweets, true ); ?> /> + <?php esc_html_e( 'Include retweets', 'jetpack' ); ?> + </label> + </p> + + <p> + <label for="<?php echo $this->get_field_id( 'followbutton' ); ?>"> + <input id="<?php echo $this->get_field_id( 'followbutton' ); ?>" class="checkbox" type="checkbox" name="<?php echo $this->get_field_name( 'followbutton' ); ?>" <?php checked( $follow_button, 1 ); ?> /> + <?php esc_html_e( 'Display Follow Button', 'jetpack' ); ?> + </label> + </p> + + <p> + <label for="<?php echo $this->get_field_id( 'beforetimesince' ); ?>"> + <?php esc_html_e( 'Text to display between Tweet and timestamp:', 'jetpack' ); ?> + <input class="widefat" id="<?php echo $this->get_field_id( 'beforetimesince' ); ?>" name="<?php echo $this->get_field_name( 'beforetimesince' ); ?>" type="text" value="<?php echo esc_attr( $before_timesince ); ?>" /> + </label> + </p> + + <?php + } + + function time_since( $original, $do_more = 0 ) { + // array of time period chunks + $chunks = array( + array(60 * 60 * 24 * 365 , 'year'), + array(60 * 60 * 24 * 30 , 'month'), + array(60 * 60 * 24 * 7, 'week'), + array(60 * 60 * 24 , 'day'), + array(60 * 60 , 'hour'), + array(60 , 'minute'), + ); + + $today = time(); + $since = $today - $original; + + for ($i = 0, $j = count($chunks); $i < $j; $i++) { + $seconds = $chunks[$i][0]; + $name = $chunks[$i][1]; + + if (($count = floor($since / $seconds)) != 0) + break; + } + + $print = ($count == 1) ? '1 '.$name : "$count {$name}s"; + + if ($i + 1 < $j) { + $seconds2 = $chunks[$i + 1][0]; + $name2 = $chunks[$i + 1][1]; + + // add second item if it's greater than 0 + if ( (($count2 = floor(($since - ($seconds * $count)) / $seconds2)) != 0) && $do_more ) + $print .= ($count2 == 1) ? ', 1 '.$name2 : ", $count2 {$name2}s"; + } + return $print; + } + + /** + * Link a Twitter user mentioned in the tweet text to the user's page on Twitter. + * + * @param array $matches regex match + * @return string Tweet text with inserted @user link + */ + function _jetpack_widget_twitter_username( array $matches ) { // $matches has already been through wp_specialchars + return "$matches[1]@<a href='" . esc_url( 'http://twitter.com/' . urlencode( $matches[3] ) ) . "'>$matches[3]</a>"; + } + + /** + * Link a Twitter hashtag with a search results page on Twitter.com + * + * @param array $matches regex match + * @return string Tweet text with inserted #hashtag link + */ + function _jetpack_widget_twitter_hashtag( array $matches ) { // $matches has already been through wp_specialchars + return "$matches[1]<a href='" . esc_url( 'http://twitter.com/search?q=%23' . urlencode( $matches[3] ) ) . "'>#$matches[3]</a>"; + } + + function twitter_widget_script() { + if ( ! wp_script_is( 'twitter-widgets', 'registered' ) ) { + if ( is_ssl() ) + $twitter_widget_js = 'https://platform.twitter.com/widgets.js'; + else + $twitter_widget_js = 'http://platform.twitter.com/widgets.js'; + wp_register_script( 'twitter-widgets', $twitter_widget_js, array(), '20111117', true ); + wp_print_scripts( 'twitter-widgets' ); + } + } +} |