mirror of
https://github.com/ansible-collections/community.crypto.git
synced 2026-05-08 06:13:03 +00:00
Reformat everything with black.
I had to undo the u string prefix removals to not drop Python 2 compatibility. That's why black isn't enabled in antsibull-nox.toml yet.
This commit is contained in:
@@ -10,29 +10,33 @@ from __future__ import absolute_import, division, print_function
|
||||
__metaclass__ = type
|
||||
|
||||
|
||||
PEM_START = '-----BEGIN '
|
||||
PEM_END_START = '-----END '
|
||||
PEM_END = '-----'
|
||||
PKCS8_PRIVATEKEY_NAMES = ('PRIVATE KEY', 'ENCRYPTED PRIVATE KEY')
|
||||
PKCS1_PRIVATEKEY_SUFFIX = ' PRIVATE KEY'
|
||||
PEM_START = "-----BEGIN "
|
||||
PEM_END_START = "-----END "
|
||||
PEM_END = "-----"
|
||||
PKCS8_PRIVATEKEY_NAMES = ("PRIVATE KEY", "ENCRYPTED PRIVATE KEY")
|
||||
PKCS1_PRIVATEKEY_SUFFIX = " PRIVATE KEY"
|
||||
|
||||
|
||||
def identify_pem_format(content, encoding='utf-8'):
|
||||
'''Given the contents of a binary file, tests whether this could be a PEM file.'''
|
||||
def identify_pem_format(content, encoding="utf-8"):
|
||||
"""Given the contents of a binary file, tests whether this could be a PEM file."""
|
||||
try:
|
||||
first_pem = extract_first_pem(content.decode(encoding))
|
||||
if first_pem is None:
|
||||
return False
|
||||
lines = first_pem.splitlines(False)
|
||||
if lines[0].startswith(PEM_START) and lines[0].endswith(PEM_END) and len(lines[0]) > len(PEM_START) + len(PEM_END):
|
||||
if (
|
||||
lines[0].startswith(PEM_START)
|
||||
and lines[0].endswith(PEM_END)
|
||||
and len(lines[0]) > len(PEM_START) + len(PEM_END)
|
||||
):
|
||||
return True
|
||||
except UnicodeDecodeError:
|
||||
pass
|
||||
return False
|
||||
|
||||
|
||||
def identify_private_key_format(content, encoding='utf-8'):
|
||||
'''Given the contents of a private key file, identifies its format.'''
|
||||
def identify_private_key_format(content, encoding="utf-8"):
|
||||
"""Given the contents of a private key file, identifies its format."""
|
||||
# See https://github.com/openssl/openssl/blob/master/crypto/pem/pem_pkey.c#L40-L85
|
||||
# (PEM_read_bio_PrivateKey)
|
||||
# and https://github.com/openssl/openssl/blob/master/include/openssl/pem.h#L46-L47
|
||||
@@ -40,42 +44,48 @@ def identify_private_key_format(content, encoding='utf-8'):
|
||||
try:
|
||||
first_pem = extract_first_pem(content.decode(encoding))
|
||||
if first_pem is None:
|
||||
return 'raw'
|
||||
return "raw"
|
||||
lines = first_pem.splitlines(False)
|
||||
if lines[0].startswith(PEM_START) and lines[0].endswith(PEM_END) and len(lines[0]) > len(PEM_START) + len(PEM_END):
|
||||
name = lines[0][len(PEM_START):-len(PEM_END)]
|
||||
if (
|
||||
lines[0].startswith(PEM_START)
|
||||
and lines[0].endswith(PEM_END)
|
||||
and len(lines[0]) > len(PEM_START) + len(PEM_END)
|
||||
):
|
||||
name = lines[0][len(PEM_START) : -len(PEM_END)]
|
||||
if name in PKCS8_PRIVATEKEY_NAMES:
|
||||
return 'pkcs8'
|
||||
if len(name) > len(PKCS1_PRIVATEKEY_SUFFIX) and name.endswith(PKCS1_PRIVATEKEY_SUFFIX):
|
||||
return 'pkcs1'
|
||||
return 'unknown-pem'
|
||||
return "pkcs8"
|
||||
if len(name) > len(PKCS1_PRIVATEKEY_SUFFIX) and name.endswith(
|
||||
PKCS1_PRIVATEKEY_SUFFIX
|
||||
):
|
||||
return "pkcs1"
|
||||
return "unknown-pem"
|
||||
except UnicodeDecodeError:
|
||||
pass
|
||||
return 'raw'
|
||||
return "raw"
|
||||
|
||||
|
||||
def split_pem_list(text, keep_inbetween=False):
|
||||
'''
|
||||
"""
|
||||
Split concatenated PEM objects into a list of strings, where each is one PEM object.
|
||||
'''
|
||||
"""
|
||||
result = []
|
||||
current = [] if keep_inbetween else None
|
||||
for line in text.splitlines(True):
|
||||
if line.strip():
|
||||
if not keep_inbetween and line.startswith('-----BEGIN '):
|
||||
if not keep_inbetween and line.startswith("-----BEGIN "):
|
||||
current = []
|
||||
if current is not None:
|
||||
current.append(line)
|
||||
if line.startswith('-----END '):
|
||||
result.append(''.join(current))
|
||||
if line.startswith("-----END "):
|
||||
result.append("".join(current))
|
||||
current = [] if keep_inbetween else None
|
||||
return result
|
||||
|
||||
|
||||
def extract_first_pem(text):
|
||||
'''
|
||||
"""
|
||||
Given one PEM or multiple concatenated PEM objects, return only the first one, or None if there is none.
|
||||
'''
|
||||
"""
|
||||
all_pems = split_pem_list(text)
|
||||
if not all_pems:
|
||||
return None
|
||||
@@ -87,24 +97,42 @@ def _extract_type(line, start=PEM_START):
|
||||
return None
|
||||
if not line.endswith(PEM_END):
|
||||
return None
|
||||
return line[len(start):-len(PEM_END)]
|
||||
return line[len(start) : -len(PEM_END)]
|
||||
|
||||
|
||||
def extract_pem(content, strict=False):
|
||||
lines = content.splitlines()
|
||||
if len(lines) < 3:
|
||||
raise ValueError('PEM must have at least 3 lines, have only {count}'.format(count=len(lines)))
|
||||
raise ValueError(
|
||||
"PEM must have at least 3 lines, have only {count}".format(count=len(lines))
|
||||
)
|
||||
header_type = _extract_type(lines[0])
|
||||
if header_type is None:
|
||||
raise ValueError('First line is not of format {start}...{end}: {line!r}'.format(start=PEM_START, end=PEM_END, line=lines[0]))
|
||||
raise ValueError(
|
||||
"First line is not of format {start}...{end}: {line!r}".format(
|
||||
start=PEM_START, end=PEM_END, line=lines[0]
|
||||
)
|
||||
)
|
||||
footer_type = _extract_type(lines[-1], start=PEM_END_START)
|
||||
if strict:
|
||||
if header_type != footer_type:
|
||||
raise ValueError('Header type ({header}) is different from footer type ({footer})'.format(header=header_type, footer=footer_type))
|
||||
raise ValueError(
|
||||
"Header type ({header}) is different from footer type ({footer})".format(
|
||||
header=header_type, footer=footer_type
|
||||
)
|
||||
)
|
||||
for idx, line in enumerate(lines[1:-2]):
|
||||
if len(line) != 64:
|
||||
raise ValueError('Line {idx} has length {len} instead of 64'.format(idx=idx, len=len(line)))
|
||||
raise ValueError(
|
||||
"Line {idx} has length {len} instead of 64".format(
|
||||
idx=idx, len=len(line)
|
||||
)
|
||||
)
|
||||
if not (0 < len(lines[-2]) <= 64):
|
||||
raise ValueError('Last line has length {len}, should be in (0, 64]'.format(len=len(lines[-2])))
|
||||
raise ValueError(
|
||||
"Last line has length {len}, should be in (0, 64]".format(
|
||||
len=len(lines[-2])
|
||||
)
|
||||
)
|
||||
content = lines[1:-1]
|
||||
return header_type, ''.join(content)
|
||||
return header_type, "".join(content)
|
||||
|
||||
Reference in New Issue
Block a user