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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Http
* @subpackage CookieJar
* @version $Id: CookieJar.php 17124 2009-07-26 09:46:42Z shahar $
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
/**
* @see Zend_Uri
*/
require_once "Zend/Uri.php";
/**
* @see Zend_Http_Cookie
*/
require_once "Zend/Http/Cookie.php";
/**
* @see Zend_Http_Response
*/
require_once "Zend/Http/Response.php";
/**
* A Zend_Http_CookieJar object is designed to contain and maintain HTTP cookies, and should
* be used along with Zend_Http_Client in order to manage cookies across HTTP requests and
* responses.
*
* The class contains an array of Zend_Http_Cookie objects. Cookies can be added to the jar
* automatically from a request or manually. Then, the jar can find and return the cookies
* needed for a specific HTTP request.
*
* A special parameter can be passed to all methods of this class that return cookies: Cookies
* can be returned either in their native form (as Zend_Http_Cookie objects) or as strings -
* the later is suitable for sending as the value of the "Cookie" header in an HTTP request.
* You can also choose, when returning more than one cookie, whether to get an array of strings
* (by passing Zend_Http_CookieJar::COOKIE_STRING_ARRAY) or one unified string for all cookies
* (by passing Zend_Http_CookieJar::COOKIE_STRING_CONCAT).
*
* @link http://wp.netscape.com/newsref/std/cookie_spec.html for some specs.
*
* @category Zend
* @package Zend_Http
* @subpackage CookieJar
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Http_CookieJar implements Countable, IteratorAggregate
{
/**
* Return cookie(s) as a Zend_Http_Cookie object
*
*/
const COOKIE_OBJECT = 0;
/**
* Return cookie(s) as a string (suitable for sending in an HTTP request)
*
*/
const COOKIE_STRING_ARRAY = 1;
/**
* Return all cookies as one long string (suitable for sending in an HTTP request)
*
*/
const COOKIE_STRING_CONCAT = 2;
/**
* Array storing cookies
*
* Cookies are stored according to domain and path:
* $cookies
* + www.mydomain.com
* + /
* - cookie1
* - cookie2
* + /somepath
* - othercookie
* + www.otherdomain.net
* + /
* - alsocookie
*
* @var array
*/
protected $cookies = array();
/**
* The Zend_Http_Cookie array
*
* @var array
*/
protected $_rawCookies = array();
/**
* Construct a new CookieJar object
*
*/
public function __construct()
{ }
/**
* Add a cookie to the jar. Cookie should be passed either as a Zend_Http_Cookie object
* or as a string - in which case an object is created from the string.
*
* @param Zend_Http_Cookie|string $cookie
* @param Zend_Uri_Http|string $ref_uri Optional reference URI (for domain, path, secure)
*/
public function addCookie($cookie, $ref_uri = null)
{
if (is_string($cookie)) {
$cookie = Zend_Http_Cookie::fromString($cookie, $ref_uri);
}
if ($cookie instanceof Zend_Http_Cookie) {
$domain = $cookie->getDomain();
$path = $cookie->getPath();
if (! isset($this->cookies[$domain])) $this->cookies[$domain] = array();
if (! isset($this->cookies[$domain][$path])) $this->cookies[$domain][$path] = array();
$this->cookies[$domain][$path][$cookie->getName()] = $cookie;
$this->_rawCookies[] = $cookie;
} else {
require_once 'Zend/Http/Exception.php';
throw new Zend_Http_Exception('Supplient argument is not a valid cookie string or object');
}
}
/**
* Parse an HTTP response, adding all the cookies set in that response
* to the cookie jar.
*
* @param Zend_Http_Response $response
* @param Zend_Uri_Http|string $ref_uri Requested URI
*/
public function addCookiesFromResponse($response, $ref_uri)
{
if (! $response instanceof Zend_Http_Response) {
require_once 'Zend/Http/Exception.php';
throw new Zend_Http_Exception('$response is expected to be a Response object, ' .
gettype($response) . ' was passed');
}
$cookie_hdrs = $response->getHeader('Set-Cookie');
if (is_array($cookie_hdrs)) {
foreach ($cookie_hdrs as $cookie) {
$this->addCookie($cookie, $ref_uri);
}
} elseif (is_string($cookie_hdrs)) {
$this->addCookie($cookie_hdrs, $ref_uri);
}
}
/**
* Get all cookies in the cookie jar as an array
*
* @param int $ret_as Whether to return cookies as objects of Zend_Http_Cookie or as strings
* @return array|string
*/
public function getAllCookies($ret_as = self::COOKIE_OBJECT)
{
$cookies = $this->_flattenCookiesArray($this->cookies, $ret_as);
return $cookies;
}
/**
* Return an array of all cookies matching a specific request according to the request URI,
* whether session cookies should be sent or not, and the time to consider as "now" when
* checking cookie expiry time.
*
* @param string|Zend_Uri_Http $uri URI to check against (secure, domain, path)
* @param boolean $matchSessionCookies Whether to send session cookies
* @param int $ret_as Whether to return cookies as objects of Zend_Http_Cookie or as strings
* @param int $now Override the current time when checking for expiry time
* @return array|string
*/
public function getMatchingCookies($uri, $matchSessionCookies = true,
$ret_as = self::COOKIE_OBJECT, $now = null)
{
if (is_string($uri)) $uri = Zend_Uri::factory($uri);
if (! $uri instanceof Zend_Uri_Http) {
require_once 'Zend/Http/Exception.php';
throw new Zend_Http_Exception("Invalid URI string or object passed");
}
// First, reduce the array of cookies to only those matching domain and path
$cookies = $this->_matchDomain($uri->getHost());
$cookies = $this->_matchPath($cookies, $uri->getPath());
$cookies = $this->_flattenCookiesArray($cookies, self::COOKIE_OBJECT);
// Next, run Cookie->match on all cookies to check secure, time and session mathcing
$ret = array();
foreach ($cookies as $cookie)
if ($cookie->match($uri, $matchSessionCookies, $now))
$ret[] = $cookie;
// Now, use self::_flattenCookiesArray again - only to convert to the return format ;)
$ret = $this->_flattenCookiesArray($ret, $ret_as);
return $ret;
}
/**
* Get a specific cookie according to a URI and name
*
* @param Zend_Uri_Http|string $uri The uri (domain and path) to match
* @param string $cookie_name The cookie's name
* @param int $ret_as Whether to return cookies as objects of Zend_Http_Cookie or as strings
* @return Zend_Http_Cookie|string
*/
public function getCookie($uri, $cookie_name, $ret_as = self::COOKIE_OBJECT)
{
if (is_string($uri)) {
$uri = Zend_Uri::factory($uri);
}
if (! $uri instanceof Zend_Uri_Http) {
require_once 'Zend/Http/Exception.php';
throw new Zend_Http_Exception('Invalid URI specified');
}
// Get correct cookie path
$path = $uri->getPath();
$path = substr($path, 0, strrpos($path, '/'));
if (! $path) $path = '/';
if (isset($this->cookies[$uri->getHost()][$path][$cookie_name])) {
$cookie = $this->cookies[$uri->getHost()][$path][$cookie_name];
switch ($ret_as) {
case self::COOKIE_OBJECT:
return $cookie;
break;
case self::COOKIE_STRING_ARRAY:
case self::COOKIE_STRING_CONCAT:
return $cookie->__toString();
break;
default:
require_once 'Zend/Http/Exception.php';
throw new Zend_Http_Exception("Invalid value passed for \$ret_as: {$ret_as}");
break;
}
} else {
return false;
}
}
/**
* Helper function to recursivly flatten an array. Shoud be used when exporting the
* cookies array (or parts of it)
*
* @param Zend_Http_Cookie|array $ptr
* @param int $ret_as What value to return
* @return array|string
*/
protected function _flattenCookiesArray($ptr, $ret_as = self::COOKIE_OBJECT) {
if (is_array($ptr)) {
$ret = ($ret_as == self::COOKIE_STRING_CONCAT ? '' : array());
foreach ($ptr as $item) {
if ($ret_as == self::COOKIE_STRING_CONCAT) {
$ret .= $this->_flattenCookiesArray($item, $ret_as);
} else {
$ret = array_merge($ret, $this->_flattenCookiesArray($item, $ret_as));
}
}
return $ret;
} elseif ($ptr instanceof Zend_Http_Cookie) {
switch ($ret_as) {
case self::COOKIE_STRING_ARRAY:
return array($ptr->__toString());
break;
case self::COOKIE_STRING_CONCAT:
return $ptr->__toString();
break;
case self::COOKIE_OBJECT:
default:
return array($ptr);
break;
}
}
return null;
}
/**
* Return a subset of the cookies array matching a specific domain
*
* @param string $domain
* @return array
*/
protected function _matchDomain($domain)
{
$ret = array();
foreach (array_keys($this->cookies) as $cdom) {
if (Zend_Http_Cookie::matchCookieDomain($cdom, $domain)) {
$ret[$cdom] = $this->cookies[$cdom];
}
}
return $ret;
}
/**
* Return a subset of a domain-matching cookies that also match a specified path
*
* @param array $dom_array
* @param string $path
* @return array
*/
protected function _matchPath($domains, $path)
{
$ret = array();
foreach ($domains as $dom => $paths_array) {
foreach (array_keys($paths_array) as $cpath) {
if (Zend_Http_Cookie::matchCookiePath($cpath, $path)) {
if (! isset($ret[$dom])) {
$ret[$dom] = array();
}
$ret[$dom][$cpath] = $paths_array[$cpath];
}
}
}
return $ret;
}
/**
* Create a new CookieJar object and automatically load into it all the
* cookies set in an Http_Response object. If $uri is set, it will be
* considered as the requested URI for setting default domain and path
* of the cookie.
*
* @param Zend_Http_Response $response HTTP Response object
* @param Zend_Uri_Http|string $uri The requested URI
* @return Zend_Http_CookieJar
* @todo Add the $uri functionality.
*/
public static function fromResponse(Zend_Http_Response $response, $ref_uri)
{
$jar = new self();
$jar->addCookiesFromResponse($response, $ref_uri);
return $jar;
}
/**
* Required by Countable interface
*
* @return int
*/
public function count()
{
return count($this->_rawCookies);
}
/**
* Required by IteratorAggregate interface
*
* @return ArrayIterator
*/
public function getIterator()
{
return new ArrayIterator($this->_rawCookies);
}
/**
* Tells if the jar is empty of any cookie
*
* @return bool
*/
public function isEmpty()
{
return count($this) == 0;
}
/**
* Empties the cookieJar of any cookie
*
* @return Zend_Http_CookieJar
*/
public function reset()
{
$this->cookies = $this->_rawCookies = array();
return $this;
}
}
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