| """ |
| Core exceptions — standard error hierarchy for all apps. |
| |
| All app-level exceptions should inherit from AppError. |
| """ |
|
|
|
|
| class AppError(Exception): |
| """Base exception for all application errors.""" |
|
|
| def __init__(self, message: str = "An application error occurred.", code: str = "APP_ERROR"): |
| self.message = message |
| self.code = code |
| super().__init__(self.message) |
|
|
|
|
| class AuthenticationError(AppError): |
| """Authentication-related errors.""" |
|
|
| def __init__(self, message: str = "Authentication failed."): |
| super().__init__(message, code="AUTH_ERROR") |
|
|
|
|
| class AuthorizationError(AppError): |
| """Authorization/permission errors.""" |
|
|
| def __init__(self, message: str = "Permission denied."): |
| super().__init__(message, code="AUTHZ_ERROR") |
|
|
|
|
| class ValidationError(AppError): |
| """Business-rule validation errors.""" |
|
|
| def __init__(self, message: str = "Validation failed."): |
| super().__init__(message, code="VALIDATION_ERROR") |
|
|
|
|
| class NotFoundError(AppError): |
| """Resource not found errors.""" |
|
|
| def __init__(self, message: str = "Resource not found."): |
| super().__init__(message, code="NOT_FOUND") |
|
|
|
|
| class RateLimitError(AppError): |
| """Rate limiting errors.""" |
|
|
| def __init__(self, message: str = "Too many requests. Please try again later."): |
| super().__init__(message, code="RATE_LIMIT") |
|
|
|
|
| class EncryptionError(AppError): |
| """Encryption/decryption errors.""" |
|
|
| def __init__(self, message: str = "Encryption operation failed."): |
| super().__init__(message, code="ENCRYPTION_ERROR") |
|
|
