feat: add validation for strong password

server/utils/validator.go

@@ -86,3 +86,35 @@ func IsStringArrayEqual(a, b []string) bool {
 	}
 	return true
 }
+
+// ValidatePassword to validate the password against the following policy
+// min char length: 6
+// max char length: 36
+// at least one upper case letter
+// at least one lower case letter
+// at least one digit
+// at least one special character
+func IsValidPassword(password string) bool {
+	if len(password) < 6 || len(password) > 36 {
+		return false
+	}
+
+	hasUpperCase := false
+	hasLowerCase := false
+	hasDigit := false
+	hasSpecialChar := false
+
+	for _, char := range password {
+		if char >= 'A' && char <= 'Z' {
+			hasUpperCase = true
+		} else if char >= 'a' && char <= 'z' {
+			hasLowerCase = true
+		} else if char >= '0' && char <= '9' {
+			hasDigit = true
+		} else {
+			hasSpecialChar = true
+		}
+	}
+
+	return hasUpperCase && hasLowerCase && hasDigit && hasSpecialChar
+}