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Revision 1 - support for 1.19.1 and 1.19.2
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,105 @@ | ||
| import base64 | ||
| import re | ||
| import typing | ||
| from datetime import datetime | ||
|
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| def str_bytes(string) -> bytes: | ||
| if isinstance(string, str): | ||
| return bytes(string, encoding="UTF-8") | ||
| elif isinstance(string, bytes): | ||
| return string | ||
| raise ValueError(f"str_bytes expected str or bytes, got {type(string)}") | ||
|
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||
|
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| def bytes_str(byte_s) -> str: | ||
| if isinstance(byte_s, str): | ||
| return byte_s | ||
| elif isinstance(byte_s, bytes): | ||
| return byte_s.decode(encoding="UTF-8") | ||
| raise ValueError(f"bytes_str expected str or bytes, got {type(byte_s)}") | ||
|
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||
|
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| class CertificatePair(object): | ||
| BytesOrStr = typing.Union[str, bytes] | ||
|
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| def __init__( | ||
| self, | ||
| private: BytesOrStr, | ||
| public: BytesOrStr, | ||
| signature1: BytesOrStr, | ||
| signature2: BytesOrStr, | ||
| expires: str | ||
| ): | ||
| self.private = str_bytes(private) | ||
| self.public = str_bytes(public) | ||
| self.signature1 = str_bytes(signature1) | ||
| self.signature2 = str_bytes(signature2) | ||
|
|
||
| # ISO 8601, datetime really doesn't like extra fractional second precision | ||
|
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| # Capture up to 6 digits of fractional seconds, or none at all | ||
| expires = re.sub(r'^(\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}(?:\.\d{1,6})?)\d+(Z|\+[\d:]+)$', r'\1\2', expires) | ||
| self.expires = datetime.strptime(expires, '%Y-%m-%dT%H:%M:%S.%f%z') # cpython issue #80010 | ||
|
|
||
| def is_expired(self): | ||
| return datetime.now() > self.expires | ||
|
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| def __eq__(self, other): | ||
| if not isinstance(other, CertificatePair): | ||
| return False | ||
| return ( | ||
| self.private == other.private | ||
| and self.public == other.public | ||
| and self.signature1 == other.signature1 | ||
| and self.signature2 == other.signature2 | ||
| and self.expires == other.expires | ||
| ) | ||
|
|
||
| def __lt__(self, other): | ||
| if not isinstance(other, CertificatePair): | ||
| return False | ||
| return self.expires < other.expires | ||
|
|
||
| def __gt__(self, other): | ||
| if not isinstance(other, CertificatePair): | ||
| return False | ||
| return self.expires > other.expires | ||
|
|
||
| def __le__(self, other): | ||
| if not isinstance(other, CertificatePair): | ||
| return False | ||
| return self.expires <= other.expires | ||
|
|
||
| def __ge__(self, other): | ||
| if not isinstance(other, CertificatePair): | ||
| return False | ||
| return self.expires >= other.expires | ||
|
|
||
| def __repr__(self): | ||
| return f"{type(self).__name__}(pub={self.public[:16]}, s1={self.signature1[:16]}, s2={self.signature2[:16]}, expire={self.expires.isoformat()})" | ||
|
|
||
| @classmethod | ||
| def convert_public_key(cls, cert_pem): | ||
|
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| contents = r'-{3,}BEGIN[ A-Z]*-{3,}\n?((?:[a-zA-Z0-9/+]*\n?)*)-{3,}END[ A-Z]*-{3,}' | ||
| contents = re.search(contents, bytes_str(cert_pem)) | ||
| if contents is None: | ||
| raise ValueError("Invalid certificate (failed to parse)") | ||
| contents = contents.group(1) | ||
| contents = re.sub(r'\s', '', contents) | ||
| ba = base64.b64decode(contents) | ||
| return ba | ||
|
|
||
| @classmethod | ||
| def from_dict(cls, certificates): | ||
| return cls(**certificates) | ||
|
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| def to_dict(self): | ||
| return { | ||
| "private": self.private, | ||
| "public": self.public, | ||
| "signature1": self.signature1, | ||
| "signature2": self.signature2, | ||
| "expires": self.expires.isoformat() | ||
| } |