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Current File : /var/www/mainsite/arfs/wp-content/themes/khore/event-framework/lib/twitter.php

<?php

/*
  Plugin Name: Twitter Feeds
  Plugin URI: http://www.wpreads.com
  Description: This Plugin will fetch Twitter Account feeds for Twitter feeds API 1.1
  Author: Contributed
  Version: 1.6
  Author URI: http://www.wpreads.com
 */

class TwitterAPIExchange {

    private $oauth_access_token;
    private $oauth_access_token_secret;
    private $consumer_key;
    private $consumer_secret;
    private $postfields;
    private $getfield;
    protected $oauth;
    public $url;

    /**
     * Create the API access object. Requires an array of settings::
     * oauth access token, oauth access token secret, consumer key, consumer secret
     * These are all available by creating your own application on dev.twitter.com
     * Requires the cURL library
     * 
     * @param array $settings
     */
    public function __construct(array $settings) {
        if (!in_array('curl', get_loaded_extensions())) {
            throw new Exception('You need to install cURL, see: http://curl.haxx.se/docs/install.html');
        }

        if (!isset($settings['oauth_access_token'])
                || !isset($settings['oauth_access_token_secret'])
                || !isset($settings['consumer_key'])
                || !isset($settings['consumer_secret'])) {
            throw new Exception('Make sure you are passing in the correct parameters');
        }

        $this->oauth_access_token = $settings['oauth_access_token'];
        $this->oauth_access_token_secret = $settings['oauth_access_token_secret'];
        $this->consumer_key = $settings['consumer_key'];
        $this->consumer_secret = $settings['consumer_secret'];
    }

    /**
     * Set postfields array, example: array('screen_name' => 'J7mbo')
     * 
     * @param array $array Array of parameters to send to API
     * 
     * @return TwitterAPIExchange Instance of self for method chaining
     */
    public function setPostfields(array $array) {
        if (!is_null($this->getGetfield())) {
            throw new Exception('You can only choose get OR post fields.');
        }

        if (isset($array['status']) && substr($array['status'], 0, 1) === '@') {
            $array['status'] = sprintf(" %s", $array['status']);
        }

        $this->postfields = $array;

        return $this;
    }

    /**
     * Set getfield string, example: '?screen_name=J7mbo'
     * 
     * @param string $string Get key and value pairs as string
     * 
     * @return \TwitterAPIExchange Instance of self for method chaining
     */
    public function setGetfield($string) {
        if (!is_null($this->getPostfields())) {
            throw new Exception('You can only choose get OR post fields.');
        }

        $search = array('#', ',', '+', ':');
        $replace = array('%23', '%2C', '%2B', '%3A');
        $string = str_replace($search, $replace, $string);

        $this->getfield = $string;

        return $this;
    }

    /**
     * Get getfield string (simple getter)
     * 
     * @return string $this->getfields
     */
    public function getGetfield() {
        return $this->getfield;
    }

    /**
     * Get postfields array (simple getter)
     * 
     * @return array $this->postfields
     */
    public function getPostfields() {
        return $this->postfields;
    }

    /**
     * Build the Oauth object using params set in construct and additionals
     * passed to this method. For v1.1, see: https://dev.twitter.com/docs/api/1.1
     * 
     * @param string $url The API url to use. Example: https://api.twitter.com/1.1/search/tweets.json
     * @param string $requestMethod Either POST or GET
     * @return \TwitterAPIExchange Instance of self for method chaining
     */
    public function buildOauth($url, $requestMethod) {
        if (!in_array(strtolower($requestMethod), array('post', 'get'))) {
            throw new Exception('Request method must be either POST or GET');
        }

        $consumer_key = $this->consumer_key;
        $consumer_secret = $this->consumer_secret;
        $oauth_access_token = $this->oauth_access_token;
        $oauth_access_token_secret = $this->oauth_access_token_secret;

        $oauth = array(
            'oauth_consumer_key' => $consumer_key,
            'oauth_nonce' => time(),
            'oauth_signature_method' => 'HMAC-SHA1',
            'oauth_token' => $oauth_access_token,
            'oauth_timestamp' => time(),
            'oauth_version' => '1.0'
        );

        $getfield = $this->getGetfield();

        if (!is_null($getfield)) {
            $getfields = str_replace('?', '', explode('&', $getfield));
            foreach ($getfields as $g) {
                $split = explode('=', $g);
                $oauth[$split[0]] = $split[1];
            }
        }

        $base_info = $this->buildBaseString($url, $requestMethod, $oauth);
        $composite_key = rawurlencode($consumer_secret) . '&' . rawurlencode($oauth_access_token_secret);
        $oauth_signature = base64_encode(hash_hmac('sha1', $base_info, $composite_key, true));
        $oauth['oauth_signature'] = $oauth_signature;

        $this->url = $url;
        $this->oauth = $oauth;

        return $this;
    }

    /**
     * Perform the acual data retrieval from the API
     * 
     * @param boolean $return If true, returns data.
     * 
     * @return json If $return param is true, returns json data.
     */
    public function performRequest($return = true) {
        if (!is_bool($return)) {
            throw new Exception('performRequest parameter must be true or false');
        }

        $header = array($this->buildAuthorizationHeader($this->oauth), 'Expect:');

        $getfield = $this->getGetfield();
        $postfields = $this->getPostfields();

        $options = array(
            CURLOPT_HTTPHEADER => $header,
            CURLOPT_HEADER => false,
            CURLOPT_URL => $this->url,
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_SSL_VERIFYPEER => false
        );

        if (!is_null($postfields)) {
            $options[CURLOPT_POSTFIELDS] = $postfields;
        } else {
            if ($getfield !== '') {
                $options[CURLOPT_URL] .= $getfield;
            }
        }

        $feed = curl_init();
        curl_setopt_array($feed, $options);
        $json = curl_exec($feed);
        curl_close($feed);

        if ($return) {
            return $json;
        }
    }

    /**
     * Private method to generate the base string used by cURL
     * 
     * @param string $baseURI
     * @param string $method
     * @param string $params
     * 
     * @return string Built base string
     */
    private function buildBaseString($baseURI, $method, $params) {
        $return = array();
        ksort($params);

        foreach ($params as $key => $value) {
            $return[] = "$key=" . $value;
        }

        return $method . "&" . rawurlencode($baseURI) . '&' . rawurlencode(implode('&', $return));
    }

    /**
     * Private method to generate authorization header used by cURL
     * 
     * @param array $oauth Array of oauth data generated by buildOauth()
     * 
     * @return string $return Header used by cURL for request
     */
    private function buildAuthorizationHeader($oauth) {
        $return = 'Authorization: OAuth ';
        $values = array();

        foreach ($oauth as $key => $value) {
            $values[] = "$key=\"" . rawurlencode($value) . "\"";
        }

        $return .= implode(', ', $values);
        return $return;
    }

}

function objectToArray($d) {
    if (is_object($d)) {
        // Gets the properties of the given object
        // with get_object_vars function
        $d = get_object_vars($d);
    }

    if (is_array($d)) {
        /*
         * Return array converted to object
         * Using __FUNCTION__ (Magic constant)
         * for recursive call
         */
        return array_map(__FUNCTION__, $d);
    } else {
        // Return array
        return $d;
    }
}