The stack trace I am getting looks like:
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/keystone/common/wsgi.py", line
226, in __call__
result = method(req, **params)
File "/usr/lib/python2.7/dist-packages/keystone/auth/controllers.py",
line 154, in authenticate_for_token
parent_audit_id=token_audit_id)
File "/usr/lib/python2.7/dist-packages/keystone/common/manager.py", line
116, in wrapped
__ret_val = __f(*args, **kwargs)
File "/usr/lib/python2.7/dist-packages/keystone/token/provider.py", line
210, in issue_token
parent_audit_id=parent_audit_id)
File
"/usr/lib/python2.7/dist-packages/keystone/token/providers/fernet/core.py",
line 53, in issue_token
*args, **kwargs)
File
"/usr/lib/python2.7/dist-packages/keystone/token/providers/common.py", line
605, in issue_token
token_id = self._get_token_id(token_data)
File
"/usr/lib/python2.7/dist-packages/keystone/token/providers/fernet/core.py",
line 187, in _get_token_id
app_cred_id=app_cred_id
File
"/usr/lib/python2.7/dist-packages/keystone/token/token_formatters.py", line
160, in create_token
token = self.pack(serialized_payload)
File
"/usr/lib/python2.7/dist-packages/keystone/token/token_formatters.py", line 79,
in pack
return self.crypto.encrypt(payload).rstrip(b'=').decode('utf-8')
File "/usr/lib/python2.7/dist-packages/cryptography/fernet.py", line 135,
in encrypt
return self._fernets[0].encrypt(msg)
File "/usr/lib/python2.7/dist-packages/cryptography/fernet.py", line 51,
in encrypt
return self._encrypt_from_parts(data, current_time, iv)
File "/usr/lib/python2.7/dist-packages/cryptography/fernet.py", line 62,
in _encrypt_from_parts
ciphertext = encryptor.update(padded_data) + encryptor.finalize()
File
"/usr/lib/python2.7/dist-packages/cryptography/hazmat/primitives/ciphers/base.py",
line 149, in update
return self._ctx.update(data)
File
"/usr/lib/python2.7/dist-packages/cryptography/hazmat/backends/openssl/ciphers.py",
line 120, in update
n = self.update_into(data, buf)
File
"/usr/lib/python2.7/dist-packages/cryptography/hazmat/backends/openssl/ciphers.py",
line 131, in update_into
"unsigned char *", self._backend._ffi.from_buffer(buf)
TypeError: from_buffer() cannot return the address of the raw string within
a str or unicode or bytearray object
It looks like it is transitive via cryptography when using fernat
encryption.
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https://bugs.launchpad.net/bugs/1752660
Title:
keystone requires cffi to be installed for fernat tokens
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