Question

我正在尝试使用NSURLConnection连接并使用我的用户名和密码登录。我可以提出发布请求并收到回复，但我无法保持会话。在我提出请求后，我从网站收到此消息：

此系统需要使用HTTP cookie来验证授权信息。我们的系统检测到您的浏览器已禁用HTTP cookie，或者不支持HTTP cookie。有关如何正确配置浏览器以与此系统配合使用的更多信息，请参阅浏览器中的“帮助”页面。

我的连接代码在这里：

NSMutableURLRequest *request = nil;
request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://loginsite.com"]];
[[NSHTTPCookieStorage sharedHTTPCookieStorage]setCookieAcceptPolicy:NSHTTPCookieAcceptPolicyAlways];

NSString *post = [NSString stringWithFormat:@"username=username&pass=password"];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
[request setValue:[NSString stringWithFormat:@"%d", [postData length]] forHTTPHeaderField:@"Content-Length"];
[request setTimeoutInterval: 15];
[request setHTTPMethod:@"POST"];
[request setHTTPBody:postData];

_urlConnection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
[_urlConnection start];

如果有人可以帮助我，我会很高兴。

Answer 1

他们可能会检查您发送的用户代理标头。在这种情况下没有......

1）添加兼容的标题

    NSString *myAgent = @"SOME AGENT StRING";
    [request setValue:myAgent forHTTPHeaderField:@"User-Agent"];

e.g。来自AFNetworking的代理字符串

    #if __IPHONE_OS_VERSION_MIN_REQUIRED
        // User-Agent Header; see http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.43
        [self setDefaultHeader:@"User-Agent" value:[NSString stringWithFormat:@"%@/%@ (%@; iOS %@; Scale/%0.2f)", [[[NSBundle mainBundle] infoDictionary] objectForKey:(NSString *)kCFBundleExecutableKey] ?: [[[NSBundle mainBundle] infoDictionary] objectForKey:(NSString *)kCFBundleIdentifierKey], (__bridge id)CFBundleGetValueForInfoDictionaryKey(CFBundleGetMainBundle(), kCFBundleVersionKey) ?: [[[NSBundle mainBundle] infoDictionary] objectForKey:(NSString *)kCFBundleVersionKey], [[UIDevice currentDevice] model], [[UIDevice currentDevice] systemVersion], ([[UIScreen mainScreen] respondsToSelector:@selector(scale)] ? [[UIScreen mainScreen] scale] : 1.0f)]];
    #elif __MAC_OS_X_VERSION_MIN_REQUIRED
        [self setDefaultHeader:@"User-Agent" value:[NSString stringWithFormat:@"%@/%@ (Mac OS X %@)", [[[NSBundle mainBundle] infoDictionary] objectForKey:(NSString *)kCFBundleExecutableKey] ?: [[[NSBundle mainBundle] infoDictionary] objectForKey:(NSString *)kCFBundleIdentifierKey], [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleShortVersionString"] ?: [[[NSBundle mainBundle] infoDictionary] objectForKey:(NSString *)kCFBundleVersionKey], [[NSProcessInfo processInfo] operatingSystemVersionString]]];
    #endif

2）获取响应cookie并在将来对主会话的请求中使用它们

nextR.requestCookies = rLogin.responseCookies.mutableCopy;

无法在NSURLConnection上维护会话

1 个答案: