def _hash_of_file(path, algorithm):
"""Return the hash digest of a file."""
with open(path, 'rb') as archive:
hash = hashlib.new(algorithm)
for chunk in read_chunks(archive):
hash.update(chunk)
return hash.hexdigest()
def check_against_file(self, file):
"""Check good hashes against a file-like object
Raise HashMismatch if none match.
"""
return self.check_against_chunks(read_chunks(file))
def check_against_file(self, file):
"""Check good hashes against a file-like object
Raise HashMismatch if none match.
"""
return self.check_against_chunks(read_chunks(file))
def _hash_of_file(path, algorithm):
"""Return the hash digest of a file."""
with open(path, 'rb') as archive:
hash = hashlib.new(algorithm)
for chunk in read_chunks(archive):
hash.update(chunk)
return hash.hexdigest()
def check_against_file(self, file):
# type: (BinaryIO) -> None
"""Check good hashes against a file-like object
Raise HashMismatch if none match.
"""
return check_against_chunks(read_chunks(file))
def hash_file(path, blocksize=1 << 20):
# type: (str, int) -> Tuple[Any, int]
"""Return (hash, length) for path using hashlib.sha256()"""
h = hashlib.sha256()
length = 0
with open(path, 'rb') as f:
for block in read_chunks(f, size=blocksize):
length += len(block)
h.update(block)
return (h, length) # type: ignore
def rehash(path, algo='sha256', blocksize=1 << 20):
"""Return (hash, length) for path using hashlib.new(algo)"""
h = hashlib.new(algo)
length = 0
with open(path, 'rb') as f:
for block in read_chunks(f, size=blocksize):
length += len(block)
h.update(block)
digest = 'sha256=' + urlsafe_b64encode(
h.digest()).decode('latin1').rstrip('=')
return (digest, length)
def rehash(path, algo="sha256", blocksize=1 << 20):
"""Return (hash, length) for path using hashlib.new(algo)"""
h = hashlib.new(algo)
length = 0
with open(path, "rb") as f:
for block in read_chunks(f, size=blocksize):
length += len(block)
h.update(block)
digest = "sha256=" + urlsafe_b64encode(
h.digest()).decode("latin1").rstrip("=")
return (digest, length)
def rehash(path, algo='sha256', blocksize=1 << 20):
"""Return (hash, length) for path using hashlib.new(algo)"""
h = hashlib.new(algo)
length = 0
with open(path, 'rb') as f:
for block in read_chunks(f, size=blocksize):
length += len(block)
h.update(block)
digest = 'sha256=' + urlsafe_b64encode(
h.digest()
).decode('latin1').rstrip('=')
return (digest, length)
def rehash(path, blocksize=1 << 20):
# type: (str, int) -> Tuple[str, str]
"""Return (hash, length) for path using hashlib.sha256()"""
h = hashlib.sha256()
length = 0
with open(path, 'rb') as f:
for block in read_chunks(f, size=blocksize):
length += len(block)
h.update(block)
digest = 'sha256=' + urlsafe_b64encode(
h.digest()).decode('latin1').rstrip('=')
# unicode/str python2 issues
return (digest, str(length)) # type: ignore
def rehash(path, blocksize=1 << 20):
# type: (str, int) -> Tuple[str, str]
"""Return (hash, length) for path using hashlib.sha256()"""
h = hashlib.sha256()
length = 0
with open(path, 'rb') as f:
for block in read_chunks(f, size=blocksize):
length += len(block)
h.update(block)
digest = 'sha256=' + urlsafe_b64encode(
h.digest()
).decode('latin1').rstrip('=')
# unicode/str python2 issues
return (digest, str(length)) # type: ignore
if got.hexdigest() in self._allowed[hash_name]:
return
self._raise(gots)
def _raise(self, gots):
# type: (Dict[str, _Hash]) -> NoReturn
raise HashMismatch(self._allowed, gots)
def check_against_file(self, file):
# type: (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):
# type: (str) -> None
with open(path, 'rb') as file:
return self.check_against_file(file)
def __nonzero__(self):
# type: () -> bool
"""Return whether I know any known-good hashes."""
return bool(self._allowed)
def __bool__(self):
# type: () -> bool
return self.__nonzero__()
