65 lines
1.8 KiB
Python
65 lines
1.8 KiB
Python
from typing import Iterable
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class EmailValidationError(Exception):
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'Base class for all exceptions indicating validation failure.'
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message = 'Unknown error.'
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def __str__(self):
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return self.message
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class AddressFormatError(EmailValidationError):
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'Raised when the email address has an invalid format.'
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message = 'Invalid email address.'
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class DomainBlacklistedError(EmailValidationError):
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"""
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Raised when the domain of the email address is blacklisted on
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https://github.com/martenson/disposable-email-domains.
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"""
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message = 'Domain blacklisted.'
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class DomainNotFoundError(EmailValidationError):
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'Raised when the domain is not found.'
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message = 'Domain not found.'
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class NoNameserverError(EmailValidationError):
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'Raised when the domain does not resolve by nameservers in time.'
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message = 'No nameserver found for domain.'
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class DNSTimeoutError(EmailValidationError):
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'Raised when the domain lookup times out.'
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message = 'Domain lookup timed out.'
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class DNSConfigurationError(EmailValidationError):
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"""
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Raised when the DNS entries for this domain are falsely configured.
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"""
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message = 'Misconfigurated DNS entries for domain.'
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class NoMXError(EmailValidationError):
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'Raised then the domain has no MX records configured.'
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message = 'No MX record for domain found.'
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class NoValidMXError(EmailValidationError):
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message = 'No valid MX record for domain found.'
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class AddressNotDeliverableError(EmailValidationError):
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'Raised when a non-ambigious resulted lookup fails.'
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message = 'Email address undeliverable:'
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def __init__(self, error_messages: Iterable):
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self.error_messages = error_messages
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def __str__(self) -> str:
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return '\n'.join([self.message] + self.error_messages)
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