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<?php
class Zn_Twitter_Helper{
static $instance = null;
function get_instance(){
if( null == self::$instance ){
self::$instance = new self();
}
return self::$instance;
}
function __construct(){
}
static public function getConnectionWithAccessToken( $cons_key, $cons_secret, $oauth_token, $oauth_token_secret ){
if ( ! class_exists( 'TwitterOAuth' ) ) {
if ( ! require_once( THEME_BASE . '/template_helpers/widgets/twitter/twitteroauth.php' ) ) {
if(defined('WP_DEBUG') && WP_DEBUG) {
error_log(__METHOD__. "() Error: Couldn't find TwitterOAuth.php here: " . THEME_BASE . '/template_helpers/widgets/twitter/twitteroauth.php' );
}
return null;
}
}
$connection = new TwitterOAuth( $cons_key, $cons_secret, $oauth_token, $oauth_token_secret );
return $connection;
}
static public function relative_time( $a ){
//get current timestampt
$b = strtotime( "now" );
//get timestamp when tweet created
$c = strtotime( $a );
//get difference
$d = $b - $c;
//calculate different time values
$minute = 60;
$hour = $minute * 60;
$day = $hour * 24;
$week = $day * 7;
if ( is_numeric( $d ) && $d > 0 ) {
//if less then 3 seconds
if ( $d < 3 ) {
return __( "right now", 'zn_framework' );
}
//if less then minute
if ( $d < $minute ) {
return floor( $d ) . __( " seconds ago", 'zn_framework' );
}
//if less then 2 minutes
if ( $d < $minute * 2 ) {
return __( "about 1 minute ago", 'zn_framework' );
}
//if less then hour
if ( $d < $hour ) {
return floor( $d / $minute ) . __( " minutes ago", 'zn_framework' );
}
//if less then 2 hours
if ( $d < $hour * 2 ) {
return __( "about 1 hour ago", 'zn_framework' );
}
//if less then day
if ( $d < $day ) {
return floor( $d / $hour ) . __( " hours ago", 'zn_framework' );
}
//if more then day, but less then 2 days
if ( $d > $day && $d < $day * 2 ) {
return __( "yesterday", 'zn_framework' );
}
//if less then year
if ( $d < $day * 365 ) {
return floor( $d / $day ) . __( " days ago", 'zn_framework' );
}
//else return more than a year
return __( "over a year ago", 'zn_framework' );
}
}
//convert links to clickable format
// @internal
//@see $this->widget()
static public function convert_links( $status, $targetBlank = true, $linkMaxLen = 250 ){
// the target
$target = $targetBlank ? " target=\"_blank\" " : "";
// convert link to url
$pattern = "/((http:\/\/|https:\/\/)[^ )]+)/";
// $status = preg_replace( "/((http:\/\/|https:\/\/)[^ )]+)/e", "'<a href=\"$1\" title=\"$1\" $target >'. ((strlen('$1')>=$linkMaxLen ? substr('$1',0,$linkMaxLen).'...':'$1')).'</a>'", $status );
$status = preg_replace_callback( $pattern, array('Zn_Twitter_Helper','replace_link'), $status );
// convert @ to follow
$status = preg_replace( "/(@([_a-z0-9\-]+))/i", "<a href=\"//twitter.com/$2\" title=\"Follow $2\" $target >$1</a>", $status );
// convert # to search
$status = preg_replace( "/(#([_a-z0-9\-]+))/i", "<a href=\"https://twitter.com/search?q=$2\" title=\"Search $1\" $target >$1</a>", $status );
// return the status
return $status;
}
static public function get_twitter_script(){
return "jQuery(window).on('load',function () { jQuery.getScript('//platform.twitter.com/widgets.js'); });";
}
// Internal
//@see $this->widget()
static public function replace_link( $matches ){
$linkMaxLen = 250;
$text = strlen($matches[1]) >= $linkMaxLen ? substr($matches[1],0,$linkMaxLen).'...': $matches[1];
$return = '<a href="'.$matches[1].'" title="'.$matches[1].'" target="_blank">'. $text .'</a>';
return $return;
}
/**
* Will return an array of tweets or WP_Error
* @param array $args the configuration
*/
static public function get_tweets( $args = array() ){
$defaults = array(
'cachetime' => 1,
'consumerkey' => null,
'consumersecret' => null,
'accesstoken' => null,
'accesstokensecret' => null,
'username' => null,
);
$args = wp_parse_args( $args, $defaults );
// Check if all needed arguments were passed
if ( empty( $args['consumerkey'] ) ||
empty( $args['consumersecret'] ) ||
empty( $args['accesstoken'] ) ||
empty( $args['accesstokensecret'] ) ||
empty( $args['username'] ) )
{
return new WP_Error( 'broke', __( 'Please fill all widget/element settings!', 'zn_framework' ) );
}
// Get cached tweets
$cached_tweets = get_transient('znhg_twitter_'. $args['username'] );
if( false == $cached_tweets ){
$connection = self::getConnectionWithAccessToken(
$args['consumerkey'],
$args['consumersecret'],
$args['accesstoken'],
$args['accesstokensecret']
);
if(empty($connection) || !($connection instanceof TwitterOAuth)){
return new WP_Error( 'broke', __( "Couldn't retrieve tweets! Wrong username?", 'zn_framework' ));
}
$tweets = $connection->get( "https://api.twitter.com/1.1/statuses/user_timeline.json?screen_name=" .$args['username'] . "&count=10" );
if ( ! empty( $tweets->errors ) ) {
if ( $tweets->errors[0]->message == 'Invalid or expired token' ) {
$url = 'https://dev.twitter.com/apps';
echo '<strong>' . $tweets->errors[0]->message . '!</strong><br />' . __( "You'll need to regenerate it", 'zn_framework' ) . ' <a href="'.$url.'" target="_blank">' . __( 'here', 'zn_framework' ) . '</a>!';
}
else {
echo '<strong>' . $tweets->errors[0]->message . '</strong>';
}
return;
}
$cached_tweets = array();
for ( $i = 0; $i <= count( $tweets ); $i ++ ) {
if ( ! empty( $tweets[ $i ] ) ) {
$cached_tweets[ $i ]['created_at'] = $tweets[ $i ]->created_at;
$cached_tweets[ $i ]['text'] = $tweets[ $i ]->text;
$cached_tweets[ $i ]['status_id'] = $tweets[ $i ]->id_str;
}
}
$cache_time = 60 * 60 * intval($args['cachetime']);
set_transient('znhg_twitter_'. $args['username'], $cached_tweets, $cache_time );
}
return $cached_tweets;
}
}