NSHTTPCookieStorage状态未保存在应用程序出口上.那里有任何明确的知识/文献？

Question

苦苦于解决这个问题并且不愿实施自定义cookie管理系统.

看来iOS的一些隐藏级别的HTTP实现无法正确管理无会话cookie.每当HTTP响应设置或删除cookie时,立即检查NSHTTPCookieStorage cookie将产生预期结果并指示正确的sessionOnly值.

但是,如果应用程序在响应更新cookie后立即退出,则重新启动时,这些sessionOnly = FALSE cookie将恢复为某个先前状态,并且最新更新将丢失.

是否通过响应头或NSHTTPCookieStorage setCookie设置/删除cookie:没有区别.

一些缓存/同步伏都教必须在幕后进行.cookie变为持久化所需的时间最长可达5秒.

在那里有谁或者可以指出这种行为的明确解释？这是一个简单明了的bug吗？还是一些我无法理解的无证特征？

您可以使用一些代码重现:

- (void)applicationDidBecomeActive:(UIApplication *)application
{

    [[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookieAcceptPolicy:NSHTTPCookieAcceptPolicyAlways];

    NSHTTPCookie *cookie;
    for (cookie in [NSHTTPCookieStorage sharedHTTPCookieStorage].cookies) {
        NSLog(@"%@=%@", cookie.name, cookie.value);
    }

    NSMutableDictionary *cookieProperties = [NSMutableDictionary dictionary];
    [cookieProperties setObject:@"testCookie" forKey:NSHTTPCookieName];
    [cookieProperties setObject:[NSString stringWithFormat:@"%f", [[NSDate date] timeIntervalSince1970]] forKey:NSHTTPCookieValue];
    [cookieProperties setObject:@"www.example.com" forKey:NSHTTPCookieDomain];
    [cookieProperties setObject:@"www.example.com" forKey:NSHTTPCookieOriginURL];
    [cookieProperties setObject:@"/" forKey:NSHTTPCookiePath];
    [cookieProperties setObject:@"0" forKey:NSHTTPCookieVersion];

    // set expiration to one month from now
    [cookieProperties setObject:[[NSDate date] dateByAddingTimeInterval:2629743] forKey:NSHTTPCookieExpires];

    cookie = [NSHTTPCookie cookieWithProperties:cookieProperties];
    [[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookie:cookie];

}

此代码应在每次启动时输出新值.相反,您会看到如果您快速退出应用程序,则值将保持不变.

一些可能相关的堆栈溢出问题:

iphone NSHTTPCookieStorage可以重新打开应用程序吗？

iPhone:NSHTTPCookie未在应用重启期间保存

NSHTTPCookies拒绝被删除

如果应用程序终止,则删除NSHTTPCookie

Answer 1

我认为答案在于您的问题中链接的SO帖子之一:

我做了一个示例项目来重现这个问题 - 并且发现它只会在应用程序收到SIGKILL信号时发生,就像调试器在Xcode中停止时一样.在我的实验中,未处理的异常,崩溃,exit()和abort()不会导致NSHTPPCookieStorage丢失数据.

由于这看起来只是一个调试问题(只有在使用调试器时才会发生),我关闭了之前填充的雷达.

您可以通过正常重新启动手机并观察NSHTTPCookieStorage的所有更改是否已正确保留并重新加载来对此进行测试.

Answer 2

我也遇到了同样的问题,但我找到了解决方案.我保存了由浏览器创建的cookie,然后在应用程序重新启动时重新创建它们.

1)当uiwebview创建cookie时保存cookie.

 NSMutableArray *cookieArray = [[NSMutableArray alloc] init];
    for (NSHTTPCookie *cookie in [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies]) {
        [cookieArray addObject:cookie.name];
        NSMutableDictionary *cookieProperties = [NSMutableDictionary dictionary];
        [cookieProperties setObject:cookie.name forKey:NSHTTPCookieName];
        [cookieProperties setObject:cookie.value forKey:NSHTTPCookieValue];
        [cookieProperties setObject:cookie.domain forKey:NSHTTPCookieDomain];
        [cookieProperties setObject:cookie.path forKey:NSHTTPCookiePath];
        [cookieProperties setObject:[NSNumber numberWithInt:cookie.version] forKey:NSHTTPCookieVersion];

        [cookieProperties setObject:[[NSDate date] dateByAddingTimeInterval:2629743] forKey:NSHTTPCookieExpires];

        [[NSUserDefaults standardUserDefaults] setValue:cookieProperties forKey:cookie.name];
        [[NSUserDefaults standardUserDefaults] synchronize];

    }

    [[NSUserDefaults standardUserDefaults] setValue:cookieArray forKey:@"cookieArray"];
    [[NSUserDefaults standardUserDefaults] synchronize];

2)现在重新启动它们作为应用程序重新启动:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{

    NSMutableArray* cookieDictionary = [[NSUserDefaults standardUserDefaults] valueForKey:@"cookieArray"];
     NSLog(@"cookie dictionary found is %@",cookieDictionary);

    for (int i=0; i < cookieDictionary.count; i++) 
{


        NSLog(@"cookie found is %@",[cookieDictionary objectAtIndex:i]);
        NSMutableDictionary* cookieDictionary1 = [[NSUserDefaults standardUserDefaults] valueForKey:[cookieDictionary objectAtIndex:i]];
        NSHTTPCookie *cookie = [NSHTTPCookie cookieWithProperties:cookieDictionary1];
        [[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookie:cookie];


 }

    // other code

}

谢谢

Answer 3

听起来像是需要基础NSUserDefaults样式的“同步”调用。我认为最好的办法是在标准NSUserDefaults中分别管理所有应用程序的cookie，并在启动时将所有丢失的cookie同步到NSHTTPCookieStorage的cookie中。或者，如果您感到很勇敢，请查看是否有一些私有的同步方法：)