def _make_password_file(password):
"""Makes a temporary file that contains the password.
:param password: the password
:returns: the absolute pathname of the temporary file
:raises: PasswordFileFailedToCreate from creating or writing to the
temporary file
"""
f = None
try:
f = tempfile.NamedTemporaryFile(mode='w', dir=CONF.tempdir)
f.write(str(password))
f.flush()
except (IOError, OSError) as exc:
if f is not None:
f.close()
raise exception.PasswordFileFailedToCreate(error=exc)
except Exception:
with excutils.save_and_reraise_exception():
if f is not None:
f.close()
try:
# NOTE(jlvillal): This yield can not be in the try/except block above
# because an exception by the caller of this function would then get
# changed to a PasswordFileFailedToCreate exception which would mislead
# about the problem and its cause.
yield f.name
finally:
if f is not None:
f.close()
def make_persistent_password_file(path, password):
"""Writes a file containing a password until deleted."""
try:
fileutils.delete_if_exists(path)
with open(path, 'wb') as file:
os.chmod(path, 0o600)
file.write(password.encode())
return path
except Exception as e:
fileutils.delete_if_exists(path)
raise exception.PasswordFileFailedToCreate(error=e)
def _make_password_file(password):
"""Makes a temporary file that contains the password.
:param password: the password
:returns: the absolute pathname of the temporary file
:raises: PasswordFileFailedToCreate from creating or writing to the
temporary file
"""
try:
fd, path = tempfile.mkstemp()
os.fchmod(fd, stat.S_IRUSR | stat.S_IWUSR)
with os.fdopen(fd, "w") as f:
f.write(password)
yield path
utils.delete_if_exists(path)
except Exception as exc:
utils.delete_if_exists(path)
raise exception.PasswordFileFailedToCreate(error=exc)
