Initial commit: Open sourcing all of the Maple Open Technologies code.

cloud/maplepress-backend/internal/usecase/gateway/hash_password.go

@@ -0,0 +1,54 @@
+package gateway
+
+import (
+	"go.uber.org/zap"
+
+	"codeberg.org/mapleopentech/monorepo/cloud/maplepress-backend/pkg/security/password"
+	"codeberg.org/mapleopentech/monorepo/cloud/maplepress-backend/pkg/security/securestring"
+)
+
+// HashPasswordUseCase handles password validation and hashing
+type HashPasswordUseCase struct {
+	passwordProvider  password.PasswordProvider
+	passwordValidator password.PasswordValidator
+	logger            *zap.Logger
+}
+
+// ProvideHashPasswordUseCase creates a new HashPasswordUseCase
+func ProvideHashPasswordUseCase(
+	passwordProvider password.PasswordProvider,
+	passwordValidator password.PasswordValidator,
+	logger *zap.Logger,
+) *HashPasswordUseCase {
+	return &HashPasswordUseCase{
+		passwordProvider:  passwordProvider,
+		passwordValidator: passwordValidator,
+		logger:            logger.Named("hash-password-usecase"),
+	}
+}
+
+// Execute validates password strength and returns the hashed password
+func (uc *HashPasswordUseCase) Execute(plainPassword string) (string, error) {
+	// Validate password strength
+	if err := uc.passwordValidator.ValidatePasswordStrength(plainPassword); err != nil {
+		uc.logger.Warn("password validation failed", zap.Error(err))
+		return "", err
+	}
+
+	// Hash the password using secure string
+	securePassword, err := securestring.NewSecureString(plainPassword)
+	if err != nil {
+		uc.logger.Error("failed to create secure string", zap.Error(err))
+		return "", err
+	}
+	defer securePassword.Wipe() // Clean up password from memory
+
+	passwordHash, err := uc.passwordProvider.GenerateHashFromPassword(securePassword)
+	if err != nil {
+		uc.logger.Error("failed to hash password", zap.Error(err))
+		return "", err
+	}
+
+	uc.logger.Debug("password hashed successfully")
+	return passwordHash, nil
+}