Swift：未调用函数 didReceivechallenge 函数时出现 SSL 错误

Question

您好，我正在开发修复 SSL 错误的测试项目。当我尝试从 https://1tamilmv.eu 获取数据时，出现错误

NSLocalizedDescription=发生 SSL 错误并且安全 无法连接到服务器。, NSErrorFailingURLKey=https://www.1tamilmv.eu/, NSUnderlyingError=0x600003f6c090 {错误域=kCFErrorDomainCFNetwork 代码=-1200“（空）” 用户信息={_kCFStreamPropertySSLClientCertificateState=0, _kCFNetworkCFStreamSSLErrorOriginalValue=-9816、_kCFStreamErrorDomainKey=3、_kCFStreamErrorCodeKey=-9816、_NSURLErrorNWPathKey=satisfied（路径满足）、可行，接口：en1、ipv4、ipv6、dns}}、_kCFStreamErrorCodeKey=-9816}

我已经使用命令测试了 cURL 终端中的

curl https://www.1tamilmv.eu

。 cURL 也给出错误

curl: (35) LibreSSL SSL_connect：连接被对等方重置 连接到 www.1tamilmv.eu:443

但是相同的 URL 可以在 Chrome、Firefox 网络浏览器中显示网站，没有任何问题。但在 safari 浏览器中却没有，我注意到

didReceive challenge

函数几乎每次都不会被调用。但如果它被调用，则该网站加载成功。现在刚刚加载了 1 次。我在网络抓取任务的随机网站中遇到相同的错误。

我也尝试过 info.plist

<key>NSAppTransportSecurity</key>
<dict>
    <key>NSAllowsArbitraryLoads</key>
    <true/>
    <key>NSExceptionDomains</key>
    <dict>
        <key>1tamilmv.eu</key>
        <dict>
            <key>NSExceptionAllowsInsecureHTTPLoads</key>
            <true/>
            <key>NSExceptionMinimumTLSVersion</key>
            <string>TLSv1.0</string>
            <key>NSExceptionRequiresForwardSecrecy</key>
            <false/>
            <key>NSIncludesSubdomains</key>
            <true/>
        </dict>
    </dict>
</dict>

代码：

import Foundation

class HTTP: NSObject, URLSessionDelegate, URLSessionTaskDelegate {
    
    private(set) var session: URLSession!
 
    override init() {
        
        let config = URLSessionConfiguration.default
        //config.tlsMaximumSupportedProtocolVersion = .TLSv13
        config.timeoutIntervalForRequest = 30
        config.timeoutIntervalForResource = 30
        config.httpAdditionalHeaders = [
            "User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.2 Safari/605.1.15",
            "Accept-Encoding": "gzip, deflate, br",
            "Connection": "Keep-Alive"
        ]
     
        super.init()
       
        self.session = .init(configuration: config, delegate: self, delegateQueue: .main)
    }
    
    func load() {
        
        Task.detached(priority: .userInitiated) {
          
            var request = URLRequest(url: URL(string: "https://www.1tamilmv.eu/")!)
            request.httpMethod = "GET"
            
            do {
                
                let (data, response) = try await self.session.data(for: request)
                
                if let response = response as? HTTPURLResponse {
                    
                    print("-----------")
                    print("Status: \(response.statusCode)")
                    print("Data: \(data.count)")
                    print("-----------")

                } else {
                    
                    print("Unable to load")
                }
                
            } catch {
                
                print("Error: \(error.localizedDescription)")
            } 
        }
       
    }
  
    func urlSession(_ session: URLSession, didReceive challenge: URLAuthenticationChallenge) async -> (URLSession.AuthChallengeDisposition, URLCredential?) {

        print("Challenging....")
        if challenge.protectionSpace.serverTrust == nil {

            return (.useCredential, nil)
        }

        let trust: SecTrust = challenge.protectionSpace.serverTrust!
        let credential = URLCredential(trust: trust)
        return (.useCredential, credential)
    }
}

大多数情况下，当我点击

HTTP().load()

时，数据不会下载。有没有其他解决方案可以解决这个问题？

Answer 1

这是服务器端问题。我已经像浏览器一样发送了额外的标头，它现在正在工作。

"Accept-Language": "en-GB,en;q=0.9",
"Origin": "https://www.1tamilmv.eu",
"Sec-Fetch-Mode": "cors",
"Sec-Fetch-Site": "cross-site"