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351 lines
12 KiB
PHP
351 lines
12 KiB
PHP
<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Http
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* @subpackage CookieJar
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* @version $Id: CookieJar.php 9098 2008-03-30 19:29:10Z thomas $
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* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com/)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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require_once "Zend/Uri.php";
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require_once "Zend/Http/Cookie.php";
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require_once "Zend/Http/Response.php";
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/**
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* A Zend_Http_CookieJar object is designed to contain and maintain HTTP cookies, and should
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* be used along with Zend_Http_Client in order to manage cookies across HTTP requests and
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* responses.
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*
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* The class contains an array of Zend_Http_Cookie objects. Cookies can be added to the jar
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* automatically from a request or manually. Then, the jar can find and return the cookies
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* needed for a specific HTTP request.
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*
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* A special parameter can be passed to all methods of this class that return cookies: Cookies
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* can be returned either in their native form (as Zend_Http_Cookie objects) or as strings -
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* the later is suitable for sending as the value of the "Cookie" header in an HTTP request.
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* You can also choose, when returning more than one cookie, whether to get an array of strings
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* (by passing Zend_Http_CookieJar::COOKIE_STRING_ARRAY) or one unified string for all cookies
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* (by passing Zend_Http_CookieJar::COOKIE_STRING_CONCAT).
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*
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* @link http://wp.netscape.com/newsref/std/cookie_spec.html for some specs.
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*
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* @category Zend
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* @package Zend_Http
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* @subpackage CookieJar
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* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com/)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Http_CookieJar
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{
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/**
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* Return cookie(s) as a Zend_Http_Cookie object
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*
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*/
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const COOKIE_OBJECT = 0;
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/**
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* Return cookie(s) as a string (suitable for sending in an HTTP request)
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*
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*/
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const COOKIE_STRING_ARRAY = 1;
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/**
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* Return all cookies as one long string (suitable for sending in an HTTP request)
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*
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*/
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const COOKIE_STRING_CONCAT = 2;
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/**
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* Array storing cookies
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*
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* Cookies are stored according to domain and path:
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* $cookies
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* + www.mydomain.com
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* + /
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* - cookie1
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* - cookie2
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* + /somepath
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* - othercookie
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* + www.otherdomain.net
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* + /
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* - alsocookie
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*
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* @var array
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*/
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protected $cookies = array();
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/**
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* Construct a new CookieJar object
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*
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*/
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public function __construct()
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{ }
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/**
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* Add a cookie to the jar. Cookie should be passed either as a Zend_Http_Cookie object
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* or as a string - in which case an object is created from the string.
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*
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* @param Zend_Http_Cookie|string $cookie
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* @param Zend_Uri_Http|string $ref_uri Optional reference URI (for domain, path, secure)
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*/
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public function addCookie($cookie, $ref_uri = null)
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{
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if (is_string($cookie)) {
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$cookie = Zend_Http_Cookie::fromString($cookie, $ref_uri);
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}
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if ($cookie instanceof Zend_Http_Cookie) {
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$domain = $cookie->getDomain();
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$path = $cookie->getPath();
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if (! isset($this->cookies[$domain])) $this->cookies[$domain] = array();
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if (! isset($this->cookies[$domain][$path])) $this->cookies[$domain][$path] = array();
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$this->cookies[$domain][$path][$cookie->getName()] = $cookie;
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} else {
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require_once 'Zend/Http/Exception.php';
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throw new Zend_Http_Exception('Supplient argument is not a valid cookie string or object');
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}
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}
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/**
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* Parse an HTTP response, adding all the cookies set in that response
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* to the cookie jar.
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*
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* @param Zend_Http_Response $response
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* @param Zend_Uri_Http|string $ref_uri Requested URI
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*/
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public function addCookiesFromResponse($response, $ref_uri)
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{
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if (! $response instanceof Zend_Http_Response) {
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require_once 'Zend/Http/Exception.php';
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throw new Zend_Http_Exception('$response is expected to be a Response object, ' .
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gettype($response) . ' was passed');
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}
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$cookie_hdrs = $response->getHeader('Set-Cookie');
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if (is_array($cookie_hdrs)) {
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foreach ($cookie_hdrs as $cookie) {
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$this->addCookie($cookie, $ref_uri);
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}
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} elseif (is_string($cookie_hdrs)) {
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$this->addCookie($cookie_hdrs, $ref_uri);
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}
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}
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/**
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* Get all cookies in the cookie jar as an array
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*
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* @param int $ret_as Whether to return cookies as objects of Zend_Http_Cookie or as strings
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* @return array|string
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*/
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public function getAllCookies($ret_as = self::COOKIE_OBJECT)
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{
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$cookies = $this->_flattenCookiesArray($this->cookies, $ret_as);
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return $cookies;
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}
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/**
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* Return an array of all cookies matching a specific request according to the request URI,
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* whether session cookies should be sent or not, and the time to consider as "now" when
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* checking cookie expiry time.
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*
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* @param string|Zend_Uri_Http $uri URI to check against (secure, domain, path)
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* @param boolean $matchSessionCookies Whether to send session cookies
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* @param int $ret_as Whether to return cookies as objects of Zend_Http_Cookie or as strings
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* @param int $now Override the current time when checking for expiry time
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* @return array|string
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*/
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public function getMatchingCookies($uri, $matchSessionCookies = true,
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$ret_as = self::COOKIE_OBJECT, $now = null)
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{
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if (is_string($uri)) $uri = Zend_Uri::factory($uri);
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if (! $uri instanceof Zend_Uri_Http) {
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require_once 'Zend/Http/Exception.php';
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throw new Zend_Http_Exception("Invalid URI string or object passed");
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}
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// Set path
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$path = $uri->getPath();
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$path = substr($path, 0, strrpos($path, '/'));
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if (! $path) $path = '/';
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// First, reduce the array of cookies to only those matching domain and path
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$cookies = $this->_matchDomain($uri->getHost());
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$cookies = $this->_matchPath($cookies, $path);
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$cookies = $this->_flattenCookiesArray($cookies, self::COOKIE_OBJECT);
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// Next, run Cookie->match on all cookies to check secure, time and session mathcing
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$ret = array();
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foreach ($cookies as $cookie)
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if ($cookie->match($uri, $matchSessionCookies, $now))
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$ret[] = $cookie;
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// Now, use self::_flattenCookiesArray again - only to convert to the return format ;)
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$ret = $this->_flattenCookiesArray($ret, $ret_as);
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return $ret;
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}
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/**
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* Get a specific cookie according to a URI and name
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*
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* @param Zend_Uri_Http|string $uri The uri (domain and path) to match
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* @param string $cookie_name The cookie's name
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* @param int $ret_as Whether to return cookies as objects of Zend_Http_Cookie or as strings
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* @return Zend_Http_Cookie|string
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*/
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public function getCookie($uri, $cookie_name, $ret_as = self::COOKIE_OBJECT)
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{
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if (is_string($uri)) {
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$uri = Zend_Uri::factory($uri);
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}
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if (! $uri instanceof Zend_Uri_Http) {
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require_once 'Zend/Http/Exception.php';
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throw new Zend_Http_Exception('Invalid URI specified');
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}
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// Get correct cookie path
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$path = $uri->getPath();
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$path = substr($path, 0, strrpos($path, '/'));
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if (! $path) $path = '/';
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if (isset($this->cookies[$uri->getHost()][$path][$cookie_name])) {
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$cookie = $this->cookies[$uri->getHost()][$path][$cookie_name];
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switch ($ret_as) {
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case self::COOKIE_OBJECT:
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return $cookie;
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break;
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case self::COOKIE_STRING_ARRAY:
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case self::COOKIE_STRING_CONCAT:
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return $cookie->__toString();
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break;
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default:
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require_once 'Zend/Http/Exception.php';
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throw new Zend_Http_Exception("Invalid value passed for \$ret_as: {$ret_as}");
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break;
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}
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} else {
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return false;
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}
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}
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/**
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* Helper function to recursivly flatten an array. Shoud be used when exporting the
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* cookies array (or parts of it)
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*
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* @param Zend_Http_Cookie|array $ptr
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* @param int $ret_as What value to return
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* @return array|string
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*/
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protected function _flattenCookiesArray($ptr, $ret_as = self::COOKIE_OBJECT) {
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if (is_array($ptr)) {
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$ret = ($ret_as == self::COOKIE_STRING_CONCAT ? '' : array());
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foreach ($ptr as $item) {
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if ($ret_as == self::COOKIE_STRING_CONCAT) {
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$ret .= $this->_flattenCookiesArray($item, $ret_as);
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} else {
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$ret = array_merge($ret, $this->_flattenCookiesArray($item, $ret_as));
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}
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}
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return $ret;
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} elseif ($ptr instanceof Zend_Http_Cookie) {
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switch ($ret_as) {
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case self::COOKIE_STRING_ARRAY:
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return array($ptr->__toString());
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break;
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case self::COOKIE_STRING_CONCAT:
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return $ptr->__toString();
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break;
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case self::COOKIE_OBJECT:
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default:
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return array($ptr);
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break;
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}
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}
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return null;
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}
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/**
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* Return a subset of the cookies array matching a specific domain
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*
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* Returned array is actually an array of pointers to items in the $this->cookies array.
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*
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* @param string $domain
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* @return array
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*/
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protected function _matchDomain($domain) {
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$ret = array();
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foreach (array_keys($this->cookies) as $cdom) {
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$regex = "/" . preg_quote($cdom, "/") . "$/i";
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if (preg_match($regex, $domain)) $ret[$cdom] = &$this->cookies[$cdom];
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}
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return $ret;
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}
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/**
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* Return a subset of a domain-matching cookies that also match a specified path
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*
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* Returned array is actually an array of pointers to items in the $passed array.
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*
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* @param array $dom_array
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* @param string $path
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* @return array
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*/
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protected function _matchPath($domains, $path) {
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$ret = array();
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if (substr($path, -1) != '/') $path .= '/';
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foreach ($domains as $dom => $paths_array) {
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foreach (array_keys($paths_array) as $cpath) {
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$regex = "|^" . preg_quote($cpath, "|") . "|i";
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if (preg_match($regex, $path)) {
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if (! isset($ret[$dom])) $ret[$dom] = array();
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$ret[$dom][$cpath] = &$paths_array[$cpath];
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}
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}
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}
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return $ret;
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}
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/**
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* Create a new CookieJar object and automatically load into it all the
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* cookies set in an Http_Response object. If $uri is set, it will be
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* considered as the requested URI for setting default domain and path
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* of the cookie.
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*
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* @param Zend_Http_Response $response HTTP Response object
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* @param Zend_Uri_Http|string $uri The requested URI
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* @return Zend_Http_CookieJar
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* @todo Add the $uri functionality.
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*/
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public static function fromResponse(Zend_Http_Response $response, $ref_uri)
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{
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$jar = new self();
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$jar->addCookiesFromResponse($response, $ref_uri);
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return $jar;
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}
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}
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