first commit

.gitignore

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+sw

README.md

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+# sw - Simple Web Server
+Listen on a specified port and prints out client information such as
+- Client IP address
+- Client source port
+- Client headers
+- Client body if sent
+
+Useful for debugging http requests with for example ngrok.

go.mod

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+module sw
+
+go 1.19

main.go

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+package main
+
+import (
+	"flag"
+	"fmt"
+	"io"
+	"net/http"
+	"time"
+)
+
+var port = flag.String("port", "3000", "listen on port")
+var body = flag.Bool("body", true, "print body")
+var header = flag.Bool("header", true, "print headers")
+
+func requestHandler(w http.ResponseWriter, r *http.Request) {
+	fmt.Printf("%s %s from %s", r.Method, r.RequestURI, r.RemoteAddr)
+
+	if *body {
+		r.Body = http.MaxBytesReader(w, r.Body, 1048576)
+		body, err := io.ReadAll(r.Body)
+		if err != nil {
+			http.Error(w, "unable to read response", http.StatusBadRequest)
+		}
+		fmt.Printf("\n--- BODY ---\n%s\n", string(body))
+	}
+
+	if *header {
+		fmt.Println(r.Header)
+	}
+
+	fmt.Fprintf(w, "The current time is: %s\n", time.Now())
+}
+
+func main() {
+	flag.Parse()
+
+	srv := http.Server{
+		Addr:              ":" + *port,
+		WriteTimeout:      10 * time.Second,
+		ReadHeaderTimeout: 10 * time.Second,
+		Handler:           http.HandlerFunc(requestHandler),
+	}
+
+	fmt.Printf("Starting server on port %s\n", *port)
+	//srv.HandleFunc("/", requestHandler)
+	err := srv.ListenAndServe()
+	if err != nil {
+		fmt.Println("ListenAndServe:", err)
+	}
+}