__('Shows tweets for @users, @user/lists, #hashtags, and keywords blended together', 'tweetblender')));
}
// display widget
function widget($args, $instance) {
global $post;
if (sizeof($args) > 0) {
extract($args, EXTR_SKIP);
}
$tb_o = get_option('tweet-blender');
// find out id/url of the archive page
$archive_post_id = tb_get_archive_post_id();
$archive_page_url = trim($instance['widget_view_more_url']);
if ($archive_page_url == '' && $archive_post_id > 0) {
$archive_page_url = get_permalink($archive_post_id);
}
// don't show widget on the archive page
if ($post == null || ($post->ID != $archive_post_id && $archive_page_url != "http://" . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'])) {
if (isset($before_widget)) {
echo $before_widget;
}
$title = empty($instance['title']) ? '' : apply_filters('widget_title', trim($instance['title']));
if ( !empty( $title ) ) { echo $before_title . $title . $after_title; };
$sources = preg_split('/[\n\r]/m',trim($instance['widget_sources']));
$private_sources = array();
if (isset($instance['widget_private_sources']) && $instance['widget_private_sources'] != '') {
$private_sources = split(',',$instance['widget_private_sources']);
}
// remove private from general sources to avoid duplicates
$sources = array_diff($sources,$private_sources);
// mark private sources as private by prepending ! sign
array_walk($private_sources,create_function('&$v,$k','if($v != "") { $v = "!".$v; }'));
// set "view more" text
if(isset($instance['widget_view_more_text']) && $instance['widget_view_more_text'] != '') {
$view_more_text = $instance['widget_view_more_text'];
}
else {
$view_more_text = __("view more", 'tweetblender');
}
// add configuraiton options
echo '';
// print out header and list of tweets
echo '';
echo tb_create_markup($mode = 'widget',$instance,$this->id,$tb_o);
echo '';
echo '
';
if (isset($after_widget)) {
echo $after_widget;
}
}
}
// update/save function
function update($new_instance, $old_instance) {
$instance = $old_instance;
$tb_o = get_option('tweet-blender');
// process sources
$errors = array();
if(isset($old_instance['widget_sources'])) {
$old_sources = preg_split('/[\n\r]/m', $old_instance['widget_sources']);
}
else {
$old_sources = array();
}
$new_sources = preg_split('/[\n\r]/m', $new_instance['widget_sources']);
$oAuth = null;
$have_bad_sources = false; $need_oauth_tokens = false; $status_msg = array(); $log_msg = ''; $private_sources = array();
// capture aliases
$aliases = array();
foreach($new_sources as $src) {
$src = trim($src);
// if there is an alias
if(strpos($src,':') > 0 ) {
$source_parts = explode(':',$src);
$aliases[substr($source_parts[0],1)] = $source_parts[1];
}
}
if (sizeof($aliases) > 0) {
$tb_o['alt_source_names'] = $aliases;
update_option('tweet-blender',$tb_o);
}
if (isset($tb_o['widget_check_sources']) && $tb_o['widget_check_sources']) {
foreach($new_sources as $src) {
$src = trim($src);
// if there is an alias
if(strpos($src,':') > 0 ) {
$sourceToCheck = substr($src, 0, strpos($src,':'));
}
else {
$sourceToCheck = $src;
}
if ($src != '') {
list($is_ok,$is_private,$need_oauth,$msg,$log) = $this->check_source($sourceToCheck,$tb_o);
if (!$is_ok) {
$have_bad_sources = true;
}
if ($need_oauth) {
$need_oauth_tokens = true;
}
if ($is_private) {
$private_sources[] = $src;
}
$status_msg[] = $msg;
$log_msg .= $log;
}
}
if ($need_oauth_tokens) {
if (class_exists('TwitterOAuth')) {
// Create TwitterOAuth object and get request token
$connection = new TwitterOAuth(CONSUMER_KEY, CONSUMER_SECRET);
// Get request token
$request_token = $connection->getRequestToken(get_bloginfo('url') . '/' . PLUGINDIR . "/tweet-blender/lib/twitteroauth/callback.php");
if ($connection->http_code == 200) {
// Save request token to session
$tb_o['oauth_token'] = $token = $request_token['oauth_token'];
$tb_o['oauth_token_secret'] = $request_token['oauth_token_secret'];
update_option('tweet-blender',$tb_o);
$errors[] = __("Sources have protected screen names.", 'tweetblender') . " " . __('Use your Twitter account to access them', 'tweetblender') . ".";
}
else {
$errors[] = __("Sources have protected screen names but Twitter oAuth is not possible at this time. Please remove them from the list.", 'tweetblender') . "";
}
}
else {
$errors[] = __("Sources have protected screen names but Twitter oAuth class is not available. Please remove them from the list.", 'tweetblender');
}
}
}
if (sizeof($errors) == 0 && !$have_bad_sources) {
$this->message = __('Settings saved', 'tweetblender') . '
' . join(', ',$status_msg);
$instance['title'] = trim(strip_tags($new_instance['title']));
$instance['widget_refresh_rate'] = $new_instance['widget_refresh_rate'];
$instance['widget_tweets_num'] = $new_instance['widget_tweets_num'];
$instance['widget_sources'] = $new_instance['widget_sources'];
$instance['widget_private_sources'] = join(',',$private_sources);
$instance['widget_view_more_url'] = $new_instance['widget_view_more_url'];
$instance['widget_view_more_text'] = trim($new_instance['widget_view_more_text']);
return $instance;
}
else {
$this->error = join(', ',$status_msg) . "";
if (sizeof($errors) > 0) {
$this->error .= '
' . join(', ', $errors);
}
$this->bad_input = $new_instance;
return false;
}
}
// admin control form
function form($instance) {
global $tb_refresh_periods;
$default = array(
'title' => __('Tweet Blender', 'tweetblender'),
'widget_refresh_rate' => 0,
'widget_tweets_num' => 4,
'widget_sources' => ''
);
$instance = wp_parse_args( (array) $instance, $default );
// report errors if any
if (isset($this->error)) {
echo tb_wrap_javascript("function tAuth(url) {var tWin = window.open(url,'tWin','width=800,height=410,toolbar=0,location=1,status=0,menubar=0,resizable=1');}");
echo '' . $this->error . '
';
$instance = $this->bad_input;
}
// report messages if an
if (isset($this->message)) {
echo '' . $this->message . '
';
}
// title
$field_id = $this->get_field_id('title');
$field_name = $this->get_field_name('title');
echo "\r\n".'';
// sources
$field_id = $this->get_field_id('widget_sources');
$field_name = $this->get_field_name('widget_sources');
echo "\r\n".'';
// private sources
$field_id = $this->get_field_id('widget_private_sources');
$field_name = $this->get_field_name('widget_private_sources');
if (!isset($instance['widget_private_sources'])) {
$instance['widget_private_sources'] = '';
}
echo "\r\n".'';
// specify refresh
$field_id = $this->get_field_id('widget_refresh_rate');
$field_name = $this->get_field_name('widget_refresh_rate');
echo "\r\n".'';
echo "\r\n".'
';
// specify number of tweets
$field_id = $this->get_field_id('widget_tweets_num');
$field_name = $this->get_field_name('widget_tweets_num');
echo "\r\n".'
';
// specify text for "view more" link
$field_id = $this->get_field_id('widget_view_more_text');
$field_name = $this->get_field_name('widget_view_more_text');
if (!isset($instance['widget_view_more_text'])) {
$instance['widget_view_more_text'] = '';
}
echo "\r\n".'
';
echo "\r\n".'';
// specify URL for "view more" link
$field_id = $this->get_field_id('widget_view_more_url');
$field_name = $this->get_field_name('widget_view_more_url');
if (!isset($instance['widget_view_more_url'])) {
$instance['widget_view_more_url'] = '';
}
echo "\r\n".'
';
echo "\r\n".'
';
if ($archive_post = tb_get_archive_post_id()) {
echo '' . __('Leave blank to use ', 'tweetblender') . '' . __('existing page', 'tweetblender') . '';
}
}
function check_source($src,$tb_o) {
global $wp_json;
$need_oauth = false;
$is_private = false;
$source_check_result = '';
$log_msg = '';
$is_ok = false;
// if we don't have json class, get the library
if ( !is_a($wp_json, 'Services_JSON') ) {
if (file_exists(ABSPATH . WPINC . '/class-json.php')) {
require_once( ABSPATH . WPINC . '/class-json.php' );
}
else {
require(dirname(__FILE__).'/lib/JSON.php');
}
$wp_json = new Services_JSON();
}
// remove private account markup
if (stripos($src,'!') === 0) {
$src = substr($src,1);
}
// remove modifiers
if (stripos($src,'|') > 1) {
$src = substr($src,0,stripos($src,'|'));
}
$source_is_screen_name = false;
// if it's a list, use list API
if (stripos($src,'@') === 0 && stripos($src,'/') > 1) {
$apiUrl = 'http://api.twitter.com/1/' . substr($src,1,strpos($src,'/')) . 'lists' . substr($src,strpos($src,'/')) . '/statuses.json';
}
// if it's a screen name, use timeline API (search would not give us private/public check)
elseif (stripos($src,'@') === 0) {
$source_is_screen_name = true;
$apiUrl = 'http://twitter.com/statuses/user_timeline.json?screen_name=' . substr($src,1);
}
// else assume it's a hashtag or keyword
else {
$apiUrl = 'http://search.twitter.com/search.json?q=' . urlencode($src);
}
if (!class_exists('WP_Http')) {
include_once( ABSPATH . WPINC. '/class-http.php' );
}
$http = new WP_Http;
$result = $http->request($apiUrl);
// try to get data from Twitter
if (!is_wp_error($result)) {
$jsonData = $wp_json->decode($result['body']);
if (!isset($jsonData)) {
$source_check_result = ' ' . $src . ' - ' . __('FAIL', 'tweetblender') . '';
$log_msg = "($src) " . __('json error','tweetblender') . ': ' . __('can not get json', 'tweetblender') . "\n" . $apiUrl;
}
// if Twitter reported error
elseif (isset($jsonData->{'error'})) {
// if it's a private user
if (strpos($jsonData->{'error'},"Not authorized") !== false){
$is_private = true;
// if we don't have access tokens - error
if (!array_key_exists('oauth_access_token',$tb_o)) {
$source_check_result = $src . ' - ' . __('PRIVATE', 'tweetblender') . '';
$log_msg = "($src) " . __('Private: needs oAuth', 'tweetblender') . "\n";
$need_oauth = true;
}
// if we do have tokens - OK
else {
$is_ok = true;
$source_check_result = ' ' . $src . ' - ' . __('PRIVATE', 'tweetblender') . '';
$log_msg = "($src) " . __('Private: we have oAuth', 'tweetblender') . "\n";
}
}
// if it's just limit error we are OK
elseif (strpos($jsonData->{error},"Rate limit exceeded") === 0) {
$is_ok = true;
$source_check_result = ' ' . $src . ' - ' . __('OK', 'tweetblender') . '';
$log_msg = "($src) " . __('Error','tweetblender') . ': ' . __('limit error', 'tweetblender') . "\n";
}
// any other error is an error
else {
$source_check_result = ' ' . $src . ' - ' . __('FAIL', 'tweetblender') . '';
$log_msg = "($src) " . __('json error','tweetblender') . ': ' . $jsonData->{error} . "\n";
}
}
// else we assume OK
else {
$is_ok = true;
$source_check_result = ' ' . $src . ' - ' . __('OK', 'tweetblender') . '';
$log_msg = "($src) " . __('Got json with no errors', 'tweetblender') . "\n";
}
}
// if HTTP request failed
else {
// if it's a protected source
if ($source_is_screen_name && $result['response']['code'] == 401) {
$is_private = true;
// if have tokens - try to get it
if($tb_o['oauth_user_access_key'] && $tb_o['oauth_user_access_secret']) {
if (!$oAuth) {
$oAuth = new TwitterOAuth(
$tb_o['oauth_consumer_key'],
$tb_o['oauth_consumer_secret'],
$tb_o['oauth_user_access_key'],
$tb_o['oauth_user_access_secret']
);
}
$content = $oAuth->OAuthRequest('https://search.twitter.com/search.json', array('q' => '','from' => substr($src,1)), 'GET');
}
// else make user authorize
else {
$need_oauth = true;
$source_check_result = ' ' . $src . ' - ' . __('PRIVATE', 'tweetblender') . '';
$log_msg = "($src)" . __('Private: needs oAuth', 'tweetblender') . "\n";
}
}
// else it's a bad source
else {
$source_check_result = ' ' . $src . ':' . __('FAIL', 'tweetblender') . '';
$log_msg = "($src)" . __('HTTP error: ', 'tweetblender') . $result->get_error_message() . "\n";
}
}
return array($is_ok,$is_private,$need_oauth,$source_check_result,$log_msg);
}
}
add_action( 'widgets_init', create_function('', 'return register_widget("TweetBlender");') );
?>