<?php 
namespace GuzzleHttp\Cookie; 
 
use Psr\Http\Message\RequestInterface; 
use Psr\Http\Message\ResponseInterface; 
 
/** 
 * Stores HTTP cookies. 
 * 
 * It extracts cookies from HTTP requests, and returns them in HTTP responses. 
 * CookieJarInterface instances automatically expire contained cookies when 
 * necessary. Subclasses are also responsible for storing and retrieving 
 * cookies from a file, database, etc. 
 * 
 * @link http://docs.python.org/2/library/cookielib.html Inspiration 
 */ 
interface CookieJarInterface extends \Countable, \IteratorAggregate 
{ 
    /** 
     * Create a request with added cookie headers. 
     * 
     * If no matching cookies are found in the cookie jar, then no Cookie 
     * header is added to the request and the same request is returned. 
     * 
     * @param RequestInterface $request Request object to modify. 
     * 
     * @return RequestInterface returns the modified request. 
     */ 
    public function withCookieHeader(RequestInterface $request); 
 
    /** 
     * Extract cookies from an HTTP response and store them in the CookieJar. 
     * 
     * @param RequestInterface  $request  Request that was sent 
     * @param ResponseInterface $response Response that was received 
     */ 
    public function extractCookies( 
        RequestInterface $request, 
        ResponseInterface $response 
    ); 
 
    /** 
     * Sets a cookie in the cookie jar. 
     * 
     * @param SetCookie $cookie Cookie to set. 
     * 
     * @return bool Returns true on success or false on failure 
     */ 
    public function setCookie(SetCookie $cookie); 
 
    /** 
     * Remove cookies currently held in the cookie jar. 
     * 
     * Invoking this method without arguments will empty the whole cookie jar. 
     * If given a $domain argument only cookies belonging to that domain will 
     * be removed. If given a $domain and $path argument, cookies belonging to 
     * the specified path within that domain are removed. If given all three 
     * arguments, then the cookie with the specified name, path and domain is 
     * removed. 
     * 
     * @param string $domain Clears cookies matching a domain 
     * @param string $path   Clears cookies matching a domain and path 
     * @param string $name   Clears cookies matching a domain, path, and name 
     * 
     * @return CookieJarInterface 
     */ 
    public function clear($domain = null, $path = null, $name = null); 
 
    /** 
     * Discard all sessions cookies. 
     * 
     * Removes cookies that don't have an expire field or a have a discard 
     * field set to true. To be called when the user agent shuts down according 
     * to RFC 2965. 
     */ 
    public function clearSessionCookies(); 
 
    /** 
     * Converts the cookie jar to an array. 
     * 
     * @return array 
     */ 
    public function toArray(); 
} 
 
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