1 files changed, 85 insertions, 0 deletions
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..dc85d1d
--- /dev/null
+++ b/main.go
@@ -0,0 +1,85 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"io"
+	"log"
+	"net"
+	"net/http"
+	"os"
+	"time"
+)
+
+func main() {
+	listen := flag.String("listen", "0.0.0.0", "interface to listen on (default: 0.0.0.0)")
+	port := flag.String("port", "8080", "port to listen on")
+	cert := flag.String("cert", "", "tls certificate file (for https)")
+	key := flag.String("key", "", "tls key file (for https)")
+	responseFile := flag.String("response", "", "file to use as static HTTP response body")
+	flag.Parse()
+
+	logFilename := fmt.Sprintf("requests_%s.log", time.Now().Format("2006-01-02T15-04-05"))
+	logFile, err := os.OpenFile(logFilename, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
+	if err != nil {
+		log.Fatalf("Failed to open log file: %v", err)
+	}
+	defer logFile.Close()
+
+	multiLog := io.MultiWriter(os.Stdout, logFile)
+	logger := log.New(multiLog, "", 0)
+
+	var staticResponse []byte
+	if *responseFile != "" {
+		staticResponse, err = os.ReadFile(*responseFile)
+		if err != nil {
+			log.Fatalf("Failed to read response file: %v", err)
+		}
+	}
+
+	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		body, _ := io.ReadAll(r.Body)
+		r.Body.Close()
+
+		host, _, err := net.SplitHostPort(r.RemoteAddr)
+		if err != nil {
+			host = r.RemoteAddr
+		}
+		logger.Printf("%s | %s\n", time.Now().Format("2006/01/02 15:04:05"), host)
+
+		var logEntry string
+		logEntry += fmt.Sprintf("%s %s %s\n", r.Method, r.URL.RequestURI(), r.Proto)
+		if r.Host != "" {
+			logEntry += fmt.Sprintf("Host: %s\n", r.Host)
+		}
+		for name, values := range r.Header {
+			for _, value := range values {
+				logEntry += fmt.Sprintf("%s: %s\n", name, value)
+			}
+		}
+
+		logEntry += "\n" + string(body) + "\n\n---\n\n"
+		logger.Print(logEntry)
+
+		w.WriteHeader(http.StatusOK)
+		if staticResponse != nil {
+			_, _ = w.Write(staticResponse)
+		} else {
+			_, _ = w.Write([]byte("pong\n"))
+		}
+	})
+
+	addr := *listen + ":" + *port
+
+	if *cert != "" && *key != "" {
+		logger.Printf("Starting HTTPS server on %s\n", addr)
+		err = http.ListenAndServeTLS(addr, *cert, *key, nil)
+	} else {
+		logger.Printf("Starting HTTP server on %s\n", addr)
+		err = http.ListenAndServe(addr, nil)
+	}
+
+	if err != nil {
+		logger.Fatalf("Server failed: %v", err)
+	}
+}