def check_writable_file(filename):
"""
Determine if the file is writable. If the file doesn't exist then
open the file to test writability.
"""
if filename is None:
raise errors.FileError(reason=_('Filename is empty'))
try:
if os.path.exists(filename):
if not os.access(filename, os.W_OK):
raise errors.FileError(reason=_('Permission denied: %(file)s') % dict(file=filename))
else:
fp = open(filename, 'w')
fp.close()
except (IOError, OSError) as e:
raise errors.FileError(reason=str(e))
def write_certificate(cert, filename):
"""
Write the certificate to a file in PEM format.
:param cert: cryptograpy ``Certificate`` object
"""
try:
with open(filename, 'wb') as fp:
fp.write(cert.public_bytes(Encoding.PEM))
except (IOError, OSError) as e:
raise errors.FileError(reason=str(e))
def write_certificate(cert, filename):
"""
Write the certificate to a file in PEM format.
The cert value can be either DER or PEM-encoded, it will be normalized
to DER regardless, then back out to PEM.
"""
try:
with open(filename, 'wb') as fp:
fp.write(cert.public_bytes(Encoding.PEM))
except (IOError, OSError) as e:
raise errors.FileError(reason=str(e))
def write_certificate_list(certs, filename):
"""
Write a list of certificates to a file in PEM format.
:param certs: a list of IPACertificate objects to be written to a file
:param filename: a path to the file the certificates should be written into
"""
try:
with open(filename, 'wb') as f:
for cert in certs:
f.write(cert.public_bytes(Encoding.PEM))
except (IOError, OSError) as e:
raise errors.FileError(reason=str(e))
def write_certificate(rawcert, filename):
"""
Write the certificate to a file in PEM format.
The cert value can be either DER or PEM-encoded, it will be normalized
to DER regardless, then back out to PEM.
"""
dercert = normalize_certificate(rawcert)
try:
fp = open(filename, 'w')
fp.write(make_pem(base64.b64encode(dercert)))
fp.close()
except (IOError, OSError) as e:
raise errors.FileError(reason=str(e))
def forward(self, *keys, **options):
# pop `out` before sending to server as it is only client side option
out = options.pop('out', None)
if out:
util.check_writable_file(out)
res = super(dns_update_system_records, self).forward(*keys, **options)
if out and 'result' in res:
try:
with open(out, "w") as f:
self._nsupdate_output_file(f, res['result'])
except (OSError, IOError) as e:
raise errors.FileError(reason=unicode(e))
return res
def write_pem_private_key(priv_key, filename):
"""
Write a private key to a file in PEM format. Will force 0x600 permissions
on file.
:param priv_key: cryptography ``PrivateKey`` object
"""
try:
with open(filename, 'wb') as fp:
os.fchmod(fp.fileno(), 0o600)
fp.write(
priv_key.private_bytes(Encoding.PEM,
PrivateFormat.TraditionalOpenSSL,
serialization.NoEncryption()))
except (IOError, OSError) as e:
raise errors.FileError(reason=str(e))
def write_certificate_list(rawcerts, filename):
"""
Write a list of certificates to a file in PEM format.
The cert values can be either DER or PEM-encoded, they will be normalized
to DER regardless, then back out to PEM.
"""
dercerts = [normalize_certificate(rawcert) for rawcert in rawcerts]
try:
with open(filename, 'w') as f:
for cert in dercerts:
cert = base64.b64encode(cert)
cert = make_pem(cert)
f.write(cert + '\n')
except (IOError, OSError) as e:
raise errors.FileError(reason=str(e))
def write_pem_private_key(priv_key, filename, passwd=None):
"""
Write a private key to a file in PEM format. Will force 0x600 permissions
on file.
:param priv_key: cryptography ``PrivateKey`` object
:param passwd: ``bytes`` representing the password to store the
private key with
"""
if passwd is not None:
enc_alg = serialization.BestAvailableEncryption(passwd)
else:
enc_alg = serialization.NoEncryption()
try:
with open(filename, 'wb') as fp:
os.fchmod(fp.fileno(), 0o600)
fp.write(
priv_key.private_bytes(Encoding.PEM,
PrivateFormat.TraditionalOpenSSL,
encryption_algorithm=enc_alg))
except (IOError, OSError) as e:
raise errors.FileError(reason=str(e))