从NSHTTPURLResponse获取cookie

Question

我有一个非常奇怪的问题,我正在请求一个URL,我想从中获取cookie,我用这种方式来获取cookie:

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
    NSHTTPURLResponse *HTTPResponse = (NSHTTPURLResponse *)response;
    NSDictionary *fields = [HTTPResponse allHeaderFields];
    NSString *cookie = [fields valueForKey:"Set-Cookie"];
}

但是饼干不完整,有一些字段缺失,我在PostMan上检查过,所有的饼干都在那里.

我在启动时也使用了这种方法NSURLRequest.

[request setHTTPShouldHandleCookies:YES];

问题出在哪儿？

注意:这个问题是在iOS上,我是一个Android版本,它工作正常,所有的cookie都在那里.

Answer 1

您是否尝试过以下代码示例,它应该可以工作:

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
    NSArray *cookies =[[NSArray alloc]init]; 
    cookies = [NSHTTPCookie 
        cookiesWithResponseHeaderFields:[response allHeaderFields] 
        forURL:[NSURL URLWithString:@""]]; // send to URL, return NSArray
}

Answer 2

试试这段代码:

for (NSHTTPCookie *cookie in [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies])
{
    NSLog(@"name: '%@'\n",   [cookie name]);
    NSLog(@"value: '%@'\n",  [cookie value]);
    NSLog(@"domain: '%@'\n", [cookie domain]);
    NSLog(@"path: '%@'\n",   [cookie path]);
}

Answer 3

@ biloshkurskyi.ss答案就是现场.

我花了半天的时间试图找出为什么我的一些cookie没有出现在我的response.allHeaderFields iOS上,但它出现在Android上(使用相同的服务).

原因是因为某些cookie被提前提取并存储在共享cookie存储中.它们不会出现在allHeaderFields中.

如果有人需要,这是答案的快速3版本:

let request = URLRequest(url: myWebServiceUrl)
let session = URLSession.shared
let task = session.dataTask(with: request, completionHandler: {
    (data, response, error) in
    if let error = error {
        print("ERROR: \(error)")
    } else {
        print("RESPONSE: \(response)")
        if let data = data, let dataString = String(data: data, encoding: .utf8) {
            print("DATA: " + dataString)
        }
        for cookie in HTTPCookieStorage.shared.cookies! {
            print("EXTRACTED COOKIE: \(cookie)") //find your cookie here instead of httpUrlResponse.allHeaderFields
        }
    }
})
task.resume()