Initial commit: ChatGPT Account Registration Bot

internal/util/password.go

@@ -0,0 +1,40 @@
+package util
+
+import (
+	"math/rand"
+	"time"
+)
+
+const (
+	lowerChars   = "abcdefghijklmnopqrstuvwxyz"
+	upperChars   = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+	digitChars   = "0123456789"
+	specialChars = "!@#$%&*"
+	allChars     = lowerChars + upperChars + digitChars + specialChars
+)
+
+// GeneratePassword generates a random password of given length (default 14).
+// It guarantees at least 1 lowercase, 1 uppercase, 1 digit, and 1 special character.
+func GeneratePassword(length int) string {
+	if length <= 0 {
+		length = 14
+	}
+
+	r := rand.New(rand.NewSource(time.Now().UnixNano()))
+
+	password := make([]byte, length)
+	password[0] = lowerChars[r.Intn(len(lowerChars))]
+	password[1] = upperChars[r.Intn(len(upperChars))]
+	password[2] = digitChars[r.Intn(len(digitChars))]
+	password[3] = specialChars[r.Intn(len(specialChars))]
+
+	for i := 4; i < length; i++ {
+		password[i] = allChars[r.Intn(len(allChars))]
+	}
+
+	r.Shuffle(len(password), func(i, j int) {
+		password[i], password[j] = password[j], password[i]
+	})
+
+	return string(password)
+}