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39 lines
1 KiB
Python
39 lines
1 KiB
Python
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from email_validator import (
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validate_email,
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EmailNotValidError,
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)
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from app.utils import convert_to_id
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# allow also + and @ that are present in a reply address
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_ALLOWED_CHARS = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_-.+@"
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def is_valid_email(email_address: str) -> bool:
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"""
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Used to check whether an email address is valid
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NOT run MX check.
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NOT allow unicode.
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"""
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try:
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validate_email(email_address, check_deliverability=False, allow_smtputf8=False)
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return True
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except EmailNotValidError:
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return False
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def normalize_reply_email(reply_email: str) -> str:
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"""Handle the case where reply email contains *strange* char that was wrongly generated in the past"""
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if not reply_email.isascii():
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reply_email = convert_to_id(reply_email)
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ret = []
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# drop all control characters like shift, separator, etc
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for c in reply_email:
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if c not in _ALLOWED_CHARS:
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ret.append("_")
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else:
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ret.append(c)
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return "".join(ret)
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