通过 Swift 访问 HTTPS URL 时出现错误 -9807

Question

我正在尝试使用 Swift 的 NSURLRequest 和 NSURLConnection 与 Riot Games（英雄联盟）API 进行通信。我似乎不仅遇到 Riot URL 问题，而且遇到所有 HTTPS URL 问题。

我在 Swift 游乐场中有以下代码：

func doGET(url: String) {
  if let urlhandle = NSURL(string: url) {
    var request = NSURLRequest(URL: urlhandle)

    var response: NSURLResponse?
    var error: NSErrorPointer = nil
    var data = NSURLConnection.sendSynchronousRequest(request, returningResponse: &response, error: error)
    println("\n\(url)\n")
    println("\(response)\n\n")
  } else {
    println("Bad URL: \(url)")
  }
}

doGET("http://google.com")

doGET("https://na.api.pvp.net/api/lol/na/v1.2/champion/1?api_key=\(apikey)")

doGET("https://google.com")

我得到以下 errors/output：

http://google.com

Optional(<NSHTTPURLResponse: 0x7fcff2443d60> { URL: http://www.google.com/ } { status code: 200, headers {
"Accept-Ranges" = none;
"Alternate-Protocol" = "80:quic,p=0.08";
"Cache-Control" = "private, max-age=0";
"Content-Type" = "text/html; charset=ISO-8859-1";
Date = "Wed, 25 Feb 2015 23:13:45 GMT";
Expires = "-1";
Server = gws;
"Transfer-Encoding" = Identity;
Vary = "Accept-Encoding";
"X-Frame-Options" = SAMEORIGIN;
"X-XSS-Protection" = "1; mode=block";
} })


2015-02-25 16:13:45.357 URL Requests[36397:3779864] NSURLConnection/CFURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9807)

https://na.api.pvp.net/api/lol/na/v1.2/champion/1?api_key=<redacted>

nil


2015-02-25 16:13:45.402 URL Requests[36397:3779864] NSURLConnection/CFURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9807)

https://google.com

nil

如您所见，请求在 HTTP URL 上成功，但在安全 HTTPS URL 上失败。如何允许使用 HTTPS？

Answer 1

它可能无法解决 https 问题，但在将链接转换为 NSURL 之前，您应该始终使用 stringByAddingPercentEscapesUsingEncoding

"http://google.com".stringByAddingPercentEscapesUsingEncoding(NSUTF8StringEncoding)!

"https://na.api.pvp.net/api/lol/na/v1.2/champion/1?api_key=any key".stringByAddingPercentEscapesUsingEncoding(NSUTF8StringEncoding)! // "https://na.api.pvp.net/api/lol/na/v1.2/champion/1?api_key=any%20key"


func doGET(link: String) {
  if let url = NSURL(string: link.stringByAddingPercentEscapesUsingEncoding(NSUTF8StringEncoding)!) {
    var response: NSURLResponse?
    var error: NSErrorPointer = nil
    let data = NSURLConnection.sendSynchronousRequest(NSURLRequest(URL: url), returningResponse: &response, error: error)
    println("\n\(url)\n")
    println("\(response)\n\n")
  } else {
    println("Bad URL")
  }
}

Answer 2

您的代码应该可以在 'normal' 环境中运行。但是正如您提到的那样，您在大学里，接受服务器证书时可能存在问题。所以我会建议你添加 NSURLConnectionDelegate 并添加以下两个方法。我从戈登的回答中得到了这个想法 here。

func connection(connection: NSURLConnection, canAuthenticateAgainstProtectionSpace protectionSpace: NSURLProtectionSpace) -> Bool {
    return protectionSpace.authenticationMethod == NSURLAuthenticationMethodServerTrust
}

func connection(connection: NSURLConnection, didReceiveAuthenticationChallenge challenge: NSURLAuthenticationChallenge) {
    challenge.sender.useCredential(NSURLCredential(forTrust: challenge.protectionSpace.serverTrust), forAuthenticationChallenge: challenge)
}

问题中的情况是另一种情况，但我认为您的服务器证书也有同样的问题。

Answer 3

感谢@Christian 和@Leonardo。这似乎是我自己机器上的 firewall/certificate 问题。现有代码在命令提示符 (swift /path/to/file) 中运行完美，仅在 Xcode 中失败。我希望它最终能在 Xcode 中运行，但当我到达它时我会跨过那座桥。

通过 Swift 访问 HTTPS URL 时出现错误 -9807

Error -9807 when accessing HTTPS URLs via Swift

https

swift