Initial commit

Signed-off-by: Nagy Károly Gábriel <k@jpi.io>

main.go

@@ -0,0 +1,93 @@
+package main
+
+import (
+	"flag"
+	"net/http"
+	"strconv"
+
+	"github.com/labstack/echo"
+	"github.com/labstack/echo/middleware"
+)
+
+type passwordData struct {
+	Length     int
+	Digits     int
+	Symbols    int
+	NoUpper    bool
+	DenyRepeat bool
+	Password   string
+}
+
+var d, defaults passwordData
+
+func generatePassword(c echo.Context) error {
+
+	var err error
+
+	d.Length, err = strconv.Atoi(c.FormValue("length"))
+	if err != nil {
+		d.Length = defaults.Length
+	}
+
+	d.Digits, err = strconv.Atoi(c.FormValue("digits"))
+	if err != nil {
+		d.Digits = defaults.Digits
+	}
+
+	d.Symbols, err = strconv.Atoi(c.FormValue("symbols"))
+	if err != nil {
+		d.Symbols = defaults.Symbols
+	}
+
+	if c.FormValue("noupper") == "on" {
+		d.NoUpper = true
+	}
+
+	if c.FormValue("denyrepeat") == "on" {
+		d.DenyRepeat = true
+	}
+
+	// Generate a password
+	d.Password, err = generate(d.Length, d.Digits, d.Symbols, d.NoUpper, !d.DenyRepeat)
+	if err != nil {
+		d.Password = "Error: " + err.Error()
+	}
+	if d.Length == 0 {
+		d.Password = "Error: password can not have zero length"
+	}
+
+	return c.String(http.StatusOK, d.Password)
+}
+
+func checkHealth(c echo.Context) error {
+	s := `{"status":"OK"}`
+	return c.String(http.StatusOK, s)
+}
+
+func main() {
+
+	// Set defaults
+	portPtr := flag.Int("listen", 8080, "Specify on which port to listen")
+	lengthPtr := flag.Int("length", 16, "Specify the password length")
+	digitsPtr := flag.Int("digits", 2, "Specify the the number of digits in the password")
+	symbolsPtr := flag.Int("symbols", 2, "Specify the the number of symbols in the password")
+	flag.Parse()
+
+	defaults.Length = *lengthPtr
+	defaults.Digits = *digitsPtr
+	defaults.Symbols = *symbolsPtr
+
+	e := echo.New()
+	e.HideBanner = true
+
+	// Middleware
+	e.Use(middleware.Logger())
+	e.Use(middleware.Recover())
+
+	e.GET("/", generatePassword)
+	e.POST("/", generatePassword)
+
+	e.GET("/health", checkHealth)
+
+	e.Logger.Fatal(e.Start(":" + strconv.Itoa(*portPtr)))
+}