57 lines
1.1 KiB
Go
57 lines
1.1 KiB
Go
package main
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import (
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"flag"
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"fmt"
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"net/http"
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"net/http/httputil"
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"os"
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"strings"
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"time"
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)
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var logFile *string
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func main() {
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logFile = flag.String("logfile", "requests.log", "the file to log requests to")
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flag.Parse()
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http.HandleFunc("/", post)
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err := http.ListenAndServe(":8080", nil)
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if err != nil {
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panic(err)
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}
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}
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func post(w http.ResponseWriter, r *http.Request) {
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reqDump, err := httputil.DumpRequest(r, true)
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if err != nil {
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w.WriteHeader(500)
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w.Write([]byte(err.Error()))
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return
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}
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// log to stdout
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fmt.Print(logString(reqDump))
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// log to logfile
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lf, err := os.OpenFile(*logFile, os.O_CREATE | os.O_APPEND | os.O_WRONLY, 0644)
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if err != nil {
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fmt.Printf("failed to open log file: %v", err)
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w.WriteHeader(500)
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w.Write([]byte(fmt.Sprintf("failed to open log file: %v", err)))
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}
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defer lf.Close()
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lf.WriteString(logString(reqDump))
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// echo log message as response
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w.WriteHeader(200)
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w.Write([]byte(logString(reqDump)))
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}
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func logString(reqDump []byte) string {
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var sb strings.Builder
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sb.WriteString(fmt.Sprintf("Received request at %v:\n\n", time.Now()))
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sb.Write(reqDump)
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sb.WriteString("\n\n")
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return sb.String()
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} |