How to turn off https in golang

When using Go language to build web services or crawlers, you often need to handle HTTPS requests. In some cases, we need to turn off HTTPS, such as when debugging code in a development environment. This article will introduce how to turn off HTTPS using Golang.

How HTTPS works

First, we need to understand how HTTPS works. HTTPS (Hypertext Transfer Protocol Secure) is a communication protocol and a secure version of HTTP. HTTP is transmitted in clear text, while HTTPS uses the SSL/TLS protocol for encrypted transmission to ensure confidentiality and security during the communication process.

In HTTPS, public key/private key encryption is used for transmission between communicating parties. The server uses the private key to encrypt the data and transmits the public key to the client. After receiving the public key, the client uses the public key to decrypt the data. Therefore, only the server holding the private key can encrypt the data, and the client can only use the public key to decrypt. Communication data transmission is very safe.

Next, we will discuss how to turn off HTTPS in Golang.

Turn off HTTPS

The process of turning off HTTPS in Golang is relatively simple, you just need to stop using the TLS protocol. Before starting the HTTP service, we often need to generate a tls.Config configuration. Therefore, simply remove this tls.Config configuration to turn off HTTPS.

http.HandleFunc("/hello", func(w http.ResponseWriter, r *http.Request) {
    w.Write([]byte("Hello, Golang!"))
})

// 生成 SSL 配置，如果想要关闭 HTTPS，只需注释掉以下代码即可 
config := &tls.Config{
    MinVersion: tls.VersionTLS12,
    CipherSuites: []uint16{
        tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
        tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
        tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
    },
}

server := &http.Server{
    Addr:      "0.0.0.0:8443",
    TLSConfig: config,
}

// 使用 ListenAndServeTLS 启动 HTTPS 服务，如果要关闭 HTTPS，则改成 ListenAndServe 即可
log.Fatal(server.ListenAndServeTLS("server.crt", "server.key"))

In the above code, we can see that the two parameters server.crt and server.key are passed in the listenAndServeTLS method call. These two parameters are the public key and private key used to create the SSL certificate, which can enable HTTPS. In the absence of a certificate file, just change the method to ListenAndServe to turn off HTTPS.

Note

• Do not use SSL encryption to transmit sensitive data without a certificate file. In the production environment, the traditional HTTP protocol is mainly used, combined with other security mechanisms, such as setting access IP, port, Token, etc. for security control.
• Turning off HTTPS can reduce the burden on the web service, but it will also reduce the security of access. Therefore, you need to choose whether to turn off HTTPS according to the actual situation.

Summary

This article introduces how to turn off HTTPS in Golang. It should be noted that SSL encryption should not be used to transmit sensitive data without a certificate file. In a production environment, it needs to be combined with other security mechanisms for security control. In addition, when using it, you need to choose whether to turn off HTTPS according to the actual situation.

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