Question

我正在尝试从UIWebView连接到使用Swift 3通过https使用自签名证书的服务器。我已经在我的iOS设备上安装了证书，我可以使用iOS上的Safari连接到服务器，所以问题位于应用程序内。

我在这里使用Objective C描述了我发现的最佳方法：

UIWebView to view self signed websites (No private api, not NSURLConnection) - is it possible?

我试图将其翻译成Swift 3，如下所示：

override func viewDidLoad() {
    super.viewDidLoad()
    webView.delegate = self
    // other stuff
}

func webView(_ webView: UIWebView, shouldStartLoadWith request: URLRequest, navigationType: UIWebViewNavigationType) -> Bool {
    print("HTTPSSETUP should start load with request: authenticated \(authenticated)")
    if(!authenticated) {
        print("HTTPSSETUP not yet authenticated - trying")
        globalRequest = request
        let conn: NSURLConnection = NSURLConnection(request: request, delegate: self)!
        conn.start()
        return false
    }

    // some other stuff
    return true
}

func connection(_ connection: NSURLConnection, willSendRequestFor challenge: URLAuthenticationChallenge) {
    print("HTTPSSETUP In willSendRequestForAuthenticationChallenge..");
    challenge.sender!.use(URLCredential(trust: challenge.protectionSpace.serverTrust!),for: challenge)
    challenge.sender!.continueWithoutCredential(for: challenge)
}

func connection(_ connection: NSURLConnection, canAuthenticateAgainstProtectionSpace protectionSpace: URLProtectionSpace) -> Bool {
    print("HTTPSSETUP can authenticate against protection space")
    return true
}

func connection(_ connection: NSURLConnection, didReceive challenge: URLAuthenticationChallenge) {
    print("HTTPSSETUP did receive authentication challenge")
    if(challenge.previousFailureCount == 0) {
        authenticated = true
        let credential: URLCredential = URLCredential(trust: challenge.protectionSpace.serverTrust!)
        challenge.sender?.use(credential, for: challenge)
    } else {
        challenge.sender?.cancel(challenge)
    }
}

func connection(_ connection: NSURLConnection, didReceive response: URLResponse) {
    print("HTTPSSETUP did receive response")
    authenticated = true
    self.webView.loadRequest(globalRequest)
    connection.cancel()
}

func connection(_ connection: NSURLConnection, didFailWithError error: Error) {
    print("HTTPSSETUP did fail with error: " + error.localizedDescription)
}

这是控制台中的输出：

HTTPSSETUP should start load with request: authenticated false
HTTPSSETUP not yet authenticated - trying
2016-12-22 10:35:22.747238 AppName[916:341139] []  nw_coretls_read_one_record tls_handshake_process: [-9824]
2016-12-22 10:35:22.748404 AppName[916:341215] NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9824)
HTTPSSETUP did fail with error: An SSL error has occurred and a secure connection to the server cannot be made.

所以基本上 - 我看到的方式 - 主要问题如下：它从未收到URLAuthenticationChallenge（或发送请求） - 因此失败。我添加了两个方法“canAuthenticateAgainstProtectionSpace protectionSpace”以及“willSendRequestFor challenge：URLAuthenticationChallenge” - 我知道使用willSendRequestFor时不会调用canAuthenticateAgainstProtectionSpace。无论我删除哪个功能，它都不起作用。

有没有人知道如何使用Swift 3解决这个问题？任何帮助将不胜感激。

Swift 3：使用自签名证书连接到HTTPS服务器的UIWebView

0 个答案: