added env config COUNTER_FILE, DEBUG

README.md

@@ -10,6 +10,8 @@ _a web based password generator, with an API endpoint_
 * copy to clipboard
 * very small docker container, that only contains the application and has minimum attack surface
 * supports DarkMode and LightMode, you can toggle
+* prepared to run behind a reverse-proxy, like traefik.
+* logs in combined log format
 
 ## Demo
 

main.go

@@ -27,6 +27,21 @@ var (
 	mu          sync.Mutex
 )
 
+func initConfig() {
+	// 1. Counter-Pfad auslesen
+	if envFile := os.Getenv("COUNTER_FILE"); envFile != "" {
+		counterFile = envFile
+		log.Printf("counterFile st to %s, by ENV\n", envFile)
+	}
+
+	// 2. Debug-Modus auslesen (String zu Bool)
+	envDebug := strings.ToLower(os.Getenv("DEBUG"))
+	if envDebug == "true" || envDebug == "1" {
+		debug = true
+		log.Println("DEBUG-Modus ist aktiviert")
+	}
+}
+
 type responseWriter struct {
 	http.ResponseWriter
 	statusCode int
@@ -51,7 +66,7 @@ func LoggingMiddleware(next http.Handler) http.Handler {
 		userAgent := r.UserAgent()
 		// Format: IP - - [Datum] "Method Path Proto" Status Duration User-Agent
 		// "Combined Log Format"
-		log.Printf("%s - - [%s] \"%s %s %s\" %d %v\n",
+		log.Printf("%s - - [%s] \"%s %s %s\" %d %v \"%s\"\n",
 			clientIP,
 			time.Now().Format("02/Jan/2006:15:04:05 -0700"),
 			r.Method,
@@ -214,6 +229,7 @@ func helpHandler(w http.ResponseWriter, r *http.Request) {
 }
 
 func main() {
+	initConfig()
 	loadTemplates()
 	mux := http.NewServeMux()
 

misc/MoreUsage.md

@@ -25,21 +25,32 @@ for i in {1..10}; do echo $(curl -s https://passwd.scu.si/api/password); done
 you can build the app yourself like this:
 
 ```
-go build -o password-generator ./
+go build ./
 ```
 
+NOTE: If you build the app manually in go, like shown in this example, it will probably not run, since it misses a writeable `/data` directory.
+You can set the counterFile by environment variable `COUNTER_FILE`, like this:
+```
+COUNTER_FILE=./counter.txt ./Web-Password
+```
 
+## debuging the app
+
+You can turn on debug mode via environment variable `DEBUG`
+```
+DEBUG=true ./Web-Password
+```
 
 # build a docker container
 
 ```
-docker build -t password-generator .
+docker build -t web-password:dev .
 ```
 
 # start the docker container
 
 ```
-docker run -p 8080:8080 password-generator
+docker run -p 8080:8080 -v app_data:/data web-password:dev
 ```
 
 ## docker-compose