Authentication 如何在urlsession中验证代理？

嗨，我正在尝试向我的应用程序添加带有凭据的代理，但每当我尝试时， 我收到以下（在Xcode中）控制台警告：

*** WARNING: CFMachPortSetInvalidationCallBack() called on a CFMachPort with a Mach port (0x900b) which does not have any send rights.  This is not going to work.  Callback function: 0x181bcf524

也得到了以下描述的警报

Authentication for HTTP proxy
MyProxyHost
MyProxyPort

当我取消弹出窗口时，它将调用以下方法

func urlSession(_ session: URLSession, task: URLSessionTask, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void)

我在Xcode控制台中调试了该挑战，得到了以下调试说明：

po challenge.protectionSpace.debugDescription
"<NSURLProtectionSpace: 0x12f685ad0>: Host: MyProxyHost, Server:http, Auth-Scheme:NSURLAuthenticationMethodHTTPBasic, Realm:(null), Port: MyProxyPort, Proxy:YES, Proxy-Type:http"

从下面的字典中，我可以点击代理，但无法验证代理

// Create an NSURLSessionConfiguration that uses the proxy
    let proxyDict: [AnyHashable: Any]? = [(kCFNetworkProxiesHTTPEnable as AnyHashable): Int(1), (kCFNetworkProxiesHTTPProxy as AnyHashable): proxyServerString, (kCFNetworkProxiesHTTPPort as AnyHashable): proxyPortNumber, (kCFProxyUsernameKey as AnyHashable): userNameKey, (kCFProxyPasswordKey as AnyHashable): password]
    let configuration = URLSessionConfiguration.default
    configuration.connectionProxyDictionary = proxyDict

我尝试了以下几种方法，但都失败了：

let loginString = String(format: "%@:%@", user, password)
        let loginData = loginString.data(using: String.Encoding.utf8)!
        let base64LoginString = loginData.base64EncodedString()// base64EncodedData(options: [])
configuration.httpAdditionalHeaders = ["Authorization" : base64LoginString]

另一种方式：

let protectionSpace:URLProtectionSpace = URLProtectionSpace(host: proxyHost, port: proxyPort, protocol: "http", realm: nil, authenticationMethod: NSURLAuthenticationMethodHTTPBasic)
        let credentialStorage = URLCredentialStorage.shared//.allCredentials

        credentialStorage.set(getURLCredential(), for: protectionSpace)
        configuration.urlCredentialStorage = credentialStorage

另一种方式：

func urlSession(_ session: URLSession, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) {
        print("Challenge:")

        guard challenge.previousFailureCount == 0 else {
            print("Previous Failure Count = \(challenge.previousFailureCount)")
            print("Cancelling Challenge\n")
            challenge.sender?.cancel(challenge)

            // Inform the user that the user name and password are incorrect
            completionHandler(.cancelAuthenticationChallenge, nil)
            return
        }
        print("Use Credential ....\n")

        completionHandler(.useCredential, self.getURLCredential())
    }

    func urlSession(_ session: URLSession, task: URLSessionTask, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) {
        if challenge.previousFailureCount > 0
        {
            print("Alert Please check the credential")
            debugPrint("Alert Please check the credential")
            completionHandler(.cancelAuthenticationChallenge, nil)
        }

        challenge.sender?.use(self.getURLCredential(), for: challenge)
        completionHandler(.useCredential, self.getURLCredential())
    }

无法进行身份验证

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请建议我如何在swift 3中验证代理？

您的每种方法都有不同的错误：

• Authorization

  头用于向远程服务器而不是代理验证您自己。您需要设置

  代理授权

  标题

• 您使用的kCFProxy*键在代理字典中无效（顺便说一句，这就是为什么对于设计未来API的人来说，使用字典作为数据结构是一种根本不好的设计）。这些键仅在配置

  CF（读写）流时使用

  。您需要

  kcfstreampropertyhtpproxyhost

  和朋友。有关有效的代理字典示例，请参阅

• 您实现了用于处理身份验证挑战的会话级委托方法。不幸的是，该方法不能用于代理身份验证。只有任务级委托方法（

  URLSession:task:…

  ）被调用以进行代理身份验证

需要额外的标题

let configuration.httpAdditionalHeaders = ["Proxy-Authorization":  Request.authorizationHeader(user: "user", password: "password") ]

---

你找到答案了吗？我也面临同样的问题。您好，如果我设置

connectionProxyDictionary

，它是

NSURLSessionConfiguration

的一部分。。。您知道它是否可以自动设置此标题（“代理授权”）吗？谢谢，我不知道@Zohar81。我构建了一个单独的

URLSessionConfiguration

，并在每次需要代理自动化时重用它。

URLSessionConfiguration

let configuration.httpAdditionalHeaders = ["Proxy-Authorization":  Request.authorizationHeader(user: "user", password: "password") ]