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<?php
/**
 * HTTP response class
 *
 * Contains a response from Requests::request()
 * @package Requests
 */

/**
 * HTTP response class
 *
 * Contains a response from Requests::request()
 * @package Requests
 */
class Requests_Response {
    /**
     * Constructor
     */
    public function __construct() {
        $this->headers = new Requests_Response_Headers();
        $this->cookies = new Requests_Cookie_Jar();
    }

    /**
     * Response body
     *
     * @var string
     */
    public $body = '';

    /**
     * Raw HTTP data from the transport
     *
     * @var string
     */
    public $raw = '';

    /**
     * Headers, as an associative array
     *
     * @var Requests_Response_Headers Array-like object representing headers
     */
    public $headers = array();

    /**
     * Status code, false if non-blocking
     *
     * @var integer|boolean
     */
    public $status_code = false;

    /**
     * Protocol version, false if non-blocking
     *
     * @var float|boolean
     */
    public $protocol_version = false;

    /**
     * Whether the request succeeded or not
     *
     * @var boolean
     */
    public $success = false;

    /**
     * Number of redirects the request used
     *
     * @var integer
     */
    public $redirects = 0;

    /**
     * URL requested
     *
     * @var string
     */
    public $url = '';

    /**
     * Previous requests (from redirects)
     *
     * @var array Array of Requests_Response objects
     */
    public $history = array();

    /**
     * Cookies from the request
     *
     * @var Requests_Cookie_Jar Array-like object representing a cookie jar
     */
    public $cookies = array();

    /**
     * Is the response a redirect?
     *
     * @return boolean True if redirect (3xx status), false if not.
     */
    public function is_redirect() {
        $code = $this->status_code;
        return in_array($code, array(300, 301, 302, 303, 307), true) || $code > 307 && $code < 400;
    }

    /**
     * Throws an exception if the request was not successful
     *
     * @throws Requests_Exception If `$allow_redirects` is false, and code is 3xx (`response.no_redirects`)
     * @throws Requests_Exception_HTTP On non-successful status code. Exception class corresponds to code (e.g. {@see Requests_Exception_HTTP_404})
     * @param boolean $allow_redirects Set to false to throw on a 3xx as well
     */
    public function throw_for_status($allow_redirects = true) {
        if ($this->is_redirect()) {
            if (!$allow_redirects) {
                throw new Requests_Exception('Redirection not allowed', 'response.no_redirects', $this);
            }
        }
        elseif (!$this->success) {
            $exception = Requests_Exception_HTTP::get_class($this->status_code);
            throw new $exception(null, $this);
        }
    }
}