From 12cf076118570eebbff08c6b3090e0d4798447a1 Mon Sep 17 00:00:00 2001 From: cyfraeviolae Date: Wed, 3 Apr 2024 03:17:55 -0400 Subject: no venv --- .../site-packages/pip/_internal/utils/hashes.py | 151 --------------------- 1 file changed, 151 deletions(-) delete mode 100644 venv/lib/python3.11/site-packages/pip/_internal/utils/hashes.py (limited to 'venv/lib/python3.11/site-packages/pip/_internal/utils/hashes.py') diff --git a/venv/lib/python3.11/site-packages/pip/_internal/utils/hashes.py b/venv/lib/python3.11/site-packages/pip/_internal/utils/hashes.py deleted file mode 100644 index 843cffc..0000000 --- a/venv/lib/python3.11/site-packages/pip/_internal/utils/hashes.py +++ /dev/null @@ -1,151 +0,0 @@ -import hashlib -from typing import TYPE_CHECKING, BinaryIO, Dict, Iterable, List, Optional - -from pip._internal.exceptions import HashMismatch, HashMissing, InstallationError -from pip._internal.utils.misc import read_chunks - -if TYPE_CHECKING: - from hashlib import _Hash - - # NoReturn introduced in 3.6.2; imported only for type checking to maintain - # pip compatibility with older patch versions of Python 3.6 - from typing import NoReturn - - -# The recommended hash algo of the moment. Change this whenever the state of -# the art changes; it won't hurt backward compatibility. -FAVORITE_HASH = "sha256" - - -# Names of hashlib algorithms allowed by the --hash option and ``pip hash`` -# Currently, those are the ones at least as collision-resistant as sha256. -STRONG_HASHES = ["sha256", "sha384", "sha512"] - - -class Hashes: - """A wrapper that builds multiple hashes at once and checks them against - known-good values - - """ - - def __init__(self, hashes: Optional[Dict[str, List[str]]] = None) -> None: - """ - :param hashes: A dict of algorithm names pointing to lists of allowed - hex digests - """ - allowed = {} - if hashes is not None: - for alg, keys in hashes.items(): - # Make sure values are always sorted (to ease equality checks) - allowed[alg] = sorted(keys) - self._allowed = allowed - - def __and__(self, other: "Hashes") -> "Hashes": - if not isinstance(other, Hashes): - return NotImplemented - - # If either of the Hashes object is entirely empty (i.e. no hash - # specified at all), all hashes from the other object are allowed. - if not other: - return self - if not self: - return other - - # Otherwise only hashes that present in both objects are allowed. - new = {} - for alg, values in other._allowed.items(): - if alg not in self._allowed: - continue - new[alg] = [v for v in values if v in self._allowed[alg]] - return Hashes(new) - - @property - def digest_count(self) -> int: - return sum(len(digests) for digests in self._allowed.values()) - - def is_hash_allowed(self, hash_name: str, hex_digest: str) -> bool: - """Return whether the given hex digest is allowed.""" - return hex_digest in self._allowed.get(hash_name, []) - - def check_against_chunks(self, chunks: Iterable[bytes]) -> None: - """Check good hashes against ones built from iterable of chunks of - data. - - Raise HashMismatch if none match. - - """ - gots = {} - for hash_name in self._allowed.keys(): - try: - gots[hash_name] = hashlib.new(hash_name) - except (ValueError, TypeError): - raise InstallationError(f"Unknown hash name: {hash_name}") - - for chunk in chunks: - for hash in gots.values(): - hash.update(chunk) - - for hash_name, got in gots.items(): - if got.hexdigest() in self._allowed[hash_name]: - return - self._raise(gots) - - def _raise(self, gots: Dict[str, "_Hash"]) -> "NoReturn": - raise HashMismatch(self._allowed, gots) - - def check_against_file(self, file: BinaryIO) -> None: - """Check good hashes against a file-like object - - Raise HashMismatch if none match. - - """ - return self.check_against_chunks(read_chunks(file)) - - def check_against_path(self, path: str) -> None: - with open(path, "rb") as file: - return self.check_against_file(file) - - def has_one_of(self, hashes: Dict[str, str]) -> bool: - """Return whether any of the given hashes are allowed.""" - for hash_name, hex_digest in hashes.items(): - if self.is_hash_allowed(hash_name, hex_digest): - return True - return False - - def __bool__(self) -> bool: - """Return whether I know any known-good hashes.""" - return bool(self._allowed) - - def __eq__(self, other: object) -> bool: - if not isinstance(other, Hashes): - return NotImplemented - return self._allowed == other._allowed - - def __hash__(self) -> int: - return hash( - ",".join( - sorted( - ":".join((alg, digest)) - for alg, digest_list in self._allowed.items() - for digest in digest_list - ) - ) - ) - - -class MissingHashes(Hashes): - """A workalike for Hashes used when we're missing a hash for a requirement - - It computes the actual hash of the requirement and raises a HashMissing - exception showing it to the user. - - """ - - def __init__(self) -> None: - """Don't offer the ``hashes`` kwarg.""" - # Pass our favorite hash in to generate a "gotten hash". With the - # empty list, it will never match, so an error will always raise. - super().__init__(hashes={FAVORITE_HASH: []}) - - def _raise(self, gots: Dict[str, "_Hash"]) -> "NoReturn": - raise HashMissing(gots[FAVORITE_HASH].hexdigest()) -- cgit v1.2.3