diff options
Diffstat (limited to 'python/olm')
| -rwxr-xr-x | python/olm/__main__.py | 125 | ||||
| -rw-r--r-- | python/olm/_base.py | 1 | ||||
| -rw-r--r-- | python/olm/account.py | 3 | ||||
| -rw-r--r-- | python/olm/inbound_group_session.py | 32 | ||||
| -rw-r--r-- | python/olm/outbound_group_session.py | 54 | ||||
| -rw-r--r-- | python/olm/session.py | 21 |
6 files changed, 164 insertions, 72 deletions
diff --git a/python/olm/__main__.py b/python/olm/__main__.py index ce9c48b..2a48b78 100755 --- a/python/olm/__main__.py +++ b/python/olm/__main__.py @@ -1,4 +1,4 @@ -#! /usr/bin/env python +#!/usr/bin/env python from __future__ import print_function @@ -22,7 +22,8 @@ def build_arg_parser(): parser.add_argument("--key", help="Account encryption key", default="") commands = parser.add_subparsers() - create_account = commands.add_parser("create_account", help="Create a new account") + create_account = commands.add_parser("create_account", + help="Create a new account") create_account.add_argument("account_file", help="Local account file") def do_create_account(args): @@ -64,7 +65,8 @@ def build_arg_parser(): account.unpickle(args.key, read_base64_file(args.account_file)) print(account.identity_keys()['curve25519']) - id_key = commands.add_parser("identity_key", help="Get the identity key for an account") + id_key = commands.add_parser("identity_key", + help="Get the identity key for an account") id_key.add_argument("account_file", help="Local account file") id_key.set_defaults(func=do_id_key) @@ -75,21 +77,22 @@ def build_arg_parser(): key_num = args.key_num if key_num < 1 or key_num > len(keys): print( - "Invalid key number %i: %i keys available" % - (key_num, len(keys)), - file=sys.stderr + "Invalid key number %i: %i keys available" % ( + key_num, len(keys), + ), file=sys.stderr, ) sys.exit(1) - print (keys[key_num-1]) + print(keys[key_num-1]) - one_time_key = commands.add_parser("one_time_key", - help="Get a one-time key for the account") + one_time_key = commands.add_parser( + "one_time_key", + help="Get a one-time key for the account", + ) one_time_key.add_argument("account_file", help="Local account file") one_time_key.add_argument("--key-num", "-n", type=int, default=1, help="Index of key to retrieve (default: 1)") one_time_key.set_defaults(func=do_one_time_key) - sign = commands.add_parser("sign", help="Sign a message") sign.add_argument("account_file", help="Local account file") sign.add_argument("message_file", help="Message to sign") @@ -99,17 +102,18 @@ def build_arg_parser(): account = Account() account.unpickle(args.key, read_base64_file(args.account_file)) with open_in(args.message_file) as f: - message = f.read() + message = f.read() signature = account.sign(message) with open_out(args.signature_file) as f: - f.write(signature) + f.write(signature) sign.set_defaults(func=do_sign) - - generate_keys = commands.add_parser("generate_keys", help="Generate one time keys") + generate_keys = commands.add_parser("generate_keys", + help="Generate one time keys") generate_keys.add_argument("account_file", help="Local account file") - generate_keys.add_argument("count", type=int, help="Number of keys to generate") + generate_keys.add_argument("count", type=int, + help="Number of keys to generate") def do_generate_keys(args): account = Account() @@ -120,8 +124,8 @@ def build_arg_parser(): generate_keys.set_defaults(func=do_generate_keys) - - outbound = commands.add_parser("outbound", help="Create an outbound session") + outbound = commands.add_parser("outbound", + help="Create an outbound session") outbound.add_argument("account_file", help="Local account file") outbound.add_argument("session_file", help="Local session file") outbound.add_argument("identity_key", help="Remote identity key") @@ -238,43 +242,66 @@ def build_arg_parser(): decrypt.set_defaults(func=do_decrypt) - outbound_group = commands.add_parser("outbound_group", help="Create an outbound group session") - outbound_group.add_argument("session_file", help="Local group session file") + outbound_group = commands.add_parser( + "outbound_group", + help="Create an outbound group session", + ) + outbound_group.add_argument("session_file", + help="Local group session file") outbound_group.set_defaults(func=do_outbound_group) - group_credentials = commands.add_parser("group_credentials", help="Export the current outbound group session credentials") - group_credentials.add_argument("session_file", help="Local outbound group session file") - group_credentials.add_argument("credentials_file", help="File to write credentials to (default stdout)", - type=argparse.FileType('w'), nargs='?', - default=sys.stdout) + group_credentials = commands.add_parser( + "group_credentials", + help="Export the current outbound group session credentials", + ) + group_credentials.add_argument( + "session_file", + help="Local outbound group session file", + ) + group_credentials.add_argument( + "credentials_file", + help="File to write credentials to (default stdout)", + type=argparse.FileType('w'), nargs='?', + default=sys.stdout, + ) group_credentials.set_defaults(func=do_group_credentials) - group_encrypt = commands.add_parser("group_encrypt", help="Encrypt a group message") - group_encrypt.add_argument("session_file", help="Local outbound group session file") - group_encrypt.add_argument("plaintext_file", help="Plaintext file (default stdin)", + group_encrypt = commands.add_parser( + "group_encrypt", + help="Encrypt a group message", + ) + group_encrypt.add_argument("session_file", + help="Local outbound group session file") + group_encrypt.add_argument("plaintext_file", + help="Plaintext file (default stdin)", type=argparse.FileType('rb'), nargs='?', default=sys.stdin) - group_encrypt.add_argument("message_file", help="Message file (default stdout)", + group_encrypt.add_argument("message_file", + help="Message file (default stdout)", type=argparse.FileType('w'), nargs='?', default=sys.stdout) group_encrypt.set_defaults(func=do_group_encrypt) inbound_group = commands.add_parser( "inbound_group", - help=("Create an inbound group session based on credentials from an "+ + help=("Create an inbound group session based on credentials from an " + "outbound group session")) - inbound_group.add_argument("session_file", help="Local inbound group session file") - inbound_group.add_argument("credentials_file", - help="File to read credentials from (default stdin)", - type=argparse.FileType('r'), nargs='?', - default=sys.stdin) + inbound_group.add_argument("session_file", + help="Local inbound group session file") + inbound_group.add_argument( + "credentials_file", + help="File to read credentials from (default stdin)", + type=argparse.FileType('r'), nargs='?', + default=sys.stdin, + ) inbound_group.set_defaults(func=do_inbound_group) import_inbound_group = commands.add_parser( "import_inbound_group", help="Create an inbound group session based an exported inbound group" ) - import_inbound_group.add_argument("session_file", help="Local inbound group session file") + import_inbound_group.add_argument("session_file", + help="Local inbound group session file") import_inbound_group.add_argument( "export_file", help="File to read credentials from (default stdin)", @@ -283,12 +310,16 @@ def build_arg_parser(): ) import_inbound_group.set_defaults(func=do_import_inbound_group) - group_decrypt = commands.add_parser("group_decrypt", help="Decrypt a group message") - group_decrypt.add_argument("session_file", help="Local inbound group session file") - group_decrypt.add_argument("message_file", help="Message file (default stdin)", + group_decrypt = commands.add_parser("group_decrypt", + help="Decrypt a group message") + group_decrypt.add_argument("session_file", + help="Local inbound group session file") + group_decrypt.add_argument("message_file", + help="Message file (default stdin)", type=argparse.FileType('r'), nargs='?', default=sys.stdin) - group_decrypt.add_argument("plaintext_file", help="Plaintext file (default stdout)", + group_decrypt.add_argument("plaintext_file", + help="Plaintext file (default stdout)", type=argparse.FileType('wb'), nargs='?', default=sys.stdout) group_decrypt.set_defaults(func=do_group_decrypt) @@ -307,7 +338,8 @@ def build_arg_parser(): ) export_inbound_group.add_argument( "--message_index", - help="Index to export session at. Defaults to the earliest known index", + help=("Index to export session at. Defaults to the earliest known " + + "index"), type=int, ) export_inbound_group.set_defaults(func=do_export_inbound_group) @@ -317,6 +349,7 @@ def build_arg_parser(): ed25519_verify.set_defaults(func=do_verify_ed25519_signature) return parser + def do_outbound_group(args): if os.path.exists(args.session_file): sys.stderr.write("Session %r file already exists" % ( @@ -327,6 +360,7 @@ def do_outbound_group(args): with open(args.session_file, "wb") as f: f.write(session.pickle(args.key)) + def do_group_encrypt(args): session = OutboundGroupSession() session.unpickle(args.key, read_base64_file(args.session_file)) @@ -336,6 +370,7 @@ def do_group_encrypt(args): f.write(session.pickle(args.key)) args.message_file.write(message) + def do_group_credentials(args): session = OutboundGroupSession() session.unpickle(args.key, read_base64_file(args.session_file)) @@ -345,6 +380,7 @@ def do_group_credentials(args): } json.dump(result, args.credentials_file, indent=4) + def do_inbound_group(args): if os.path.exists(args.session_file): sys.stderr.write("Session %r file already exists\n" % ( @@ -353,15 +389,16 @@ def do_inbound_group(args): sys.exit(1) credentials = json.load(args.credentials_file) for k in ('session_key', ): - if not k in credentials: + if k not in credentials: sys.stderr.write("Credentials file is missing %s\n" % k) - sys.exit(1); + sys.exit(1) session = InboundGroupSession() session.init(credentials['session_key']) with open(args.session_file, "wb") as f: f.write(session.pickle(args.key)) + def do_import_inbound_group(args): if os.path.exists(args.session_file): sys.stderr.write("Session %r file already exists\n" % ( @@ -375,6 +412,7 @@ def do_import_inbound_group(args): with open(args.session_file, "wb") as f: f.write(session.pickle(args.key)) + def do_group_decrypt(args): session = InboundGroupSession() session.unpickle(args.key, read_base64_file(args.session_file)) @@ -384,6 +422,7 @@ def do_group_decrypt(args): f.write(session.pickle(args.key)) args.plaintext_file.write(plaintext) + def do_export_inbound_group(args): session = InboundGroupSession() session.unpickle(args.key, read_base64_file(args.session_file)) @@ -393,6 +432,7 @@ def do_export_inbound_group(args): index = session.first_known_index() args.export_file.write(session.export_session(index)) + def do_verify_ed25519_signature(args): account = Account() account.create() @@ -401,6 +441,7 @@ def do_verify_ed25519_signature(args): signature = account.sign(message) ed25519_verify(ed25519_key, message, signature) + if __name__ == '__main__': parser = build_arg_parser() args = parser.parse_args() diff --git a/python/olm/_base.py b/python/olm/_base.py index 64cb98b..ad21d6f 100644 --- a/python/olm/_base.py +++ b/python/olm/_base.py @@ -12,5 +12,6 @@ lib.olm_error.restypes = c_size_t ERR = lib.olm_error() + class OlmError(Exception): pass diff --git a/python/olm/account.py b/python/olm/account.py index e2dcca2..3c9ea88 100644 --- a/python/olm/account.py +++ b/python/olm/account.py @@ -12,6 +12,7 @@ lib.olm_account.restype = c_void_p lib.olm_account_last_error.argtypes = [c_void_p] lib.olm_account_last_error.restype = c_char_p + def account_errcheck(res, func, args): if res == ERR: raise OlmError("%s: %s" % ( @@ -52,6 +53,8 @@ account_function( c_size_t, c_void_p, c_size_t ) + + class Account(object): def __init__(self): self.buf = create_string_buffer(lib.olm_account_size()) diff --git a/python/olm/inbound_group_session.py b/python/olm/inbound_group_session.py index 4390b34..286aedb 100644 --- a/python/olm/inbound_group_session.py +++ b/python/olm/inbound_group_session.py @@ -11,6 +11,7 @@ lib.olm_inbound_group_session.restype = c_void_p lib.olm_inbound_group_session_last_error.argtypes = [c_void_p] lib.olm_inbound_group_session_last_error.restype = c_char_p + def inbound_group_session_errcheck(res, func, args): if res == ERR: raise OlmError("%s: %s" % ( @@ -26,10 +27,12 @@ def inbound_group_session_function(func, *types): inbound_group_session_function( - lib.olm_pickle_inbound_group_session, c_void_p, c_size_t, c_void_p, c_size_t + lib.olm_pickle_inbound_group_session, + c_void_p, c_size_t, c_void_p, c_size_t, ) inbound_group_session_function( - lib.olm_unpickle_inbound_group_session, c_void_p, c_size_t, c_void_p, c_size_t + lib.olm_unpickle_inbound_group_session, + c_void_p, c_size_t, c_void_p, c_size_t, ) inbound_group_session_function( @@ -45,19 +48,28 @@ inbound_group_session_function( ) inbound_group_session_function( lib.olm_group_decrypt, - c_void_p, c_size_t, # message - c_void_p, c_size_t, # plaintext - POINTER(c_uint32), # message_index + c_void_p, c_size_t, # message + c_void_p, c_size_t, # plaintext + POINTER(c_uint32), # message_index ) -inbound_group_session_function(lib.olm_inbound_group_session_id_length) -inbound_group_session_function(lib.olm_inbound_group_session_id, c_void_p, c_size_t) +inbound_group_session_function( + lib.olm_inbound_group_session_id_length, +) +inbound_group_session_function( + lib.olm_inbound_group_session_id, + c_void_p, c_size_t, +) lib.olm_inbound_group_session_first_known_index.argtypes = (c_void_p,) lib.olm_inbound_group_session_first_known_index.restypes = c_uint32 -inbound_group_session_function(lib.olm_export_inbound_group_session_length) -inbound_group_session_function(lib.olm_export_inbound_group_session, c_void_p, c_size_t, c_uint32) +inbound_group_session_function( + lib.olm_export_inbound_group_session_length, +) +inbound_group_session_function( + lib.olm_export_inbound_group_session, c_void_p, c_size_t, c_uint32, +) class InboundGroupSession(object): @@ -107,7 +119,7 @@ class InboundGroupSession(object): plaintext_buffer, max_plaintext_length, byref(message_index) ) - return plaintext_buffer.raw[:plaintext_length], message_index + return plaintext_buffer.raw[:plaintext_length], message_index.value def session_id(self): id_length = lib.olm_inbound_group_session_id_length(self.ptr) diff --git a/python/olm/outbound_group_session.py b/python/olm/outbound_group_session.py index e888f41..5032b34 100644 --- a/python/olm/outbound_group_session.py +++ b/python/olm/outbound_group_session.py @@ -12,6 +12,7 @@ lib.olm_outbound_group_session.restype = c_void_p lib.olm_outbound_group_session_last_error.argtypes = [c_void_p] lib.olm_outbound_group_session_last_error.restype = c_char_p + def outbound_group_session_errcheck(res, func, args): if res == ERR: raise OlmError("%s: %s" % ( @@ -27,28 +28,49 @@ def outbound_group_session_function(func, *types): outbound_group_session_function( - lib.olm_pickle_outbound_group_session, c_void_p, c_size_t, c_void_p, c_size_t + lib.olm_pickle_outbound_group_session, + c_void_p, c_size_t, c_void_p, c_size_t, ) outbound_group_session_function( - lib.olm_unpickle_outbound_group_session, c_void_p, c_size_t, c_void_p, c_size_t + lib.olm_unpickle_outbound_group_session, + c_void_p, c_size_t, c_void_p, c_size_t, ) -outbound_group_session_function(lib.olm_init_outbound_group_session_random_length) -outbound_group_session_function(lib.olm_init_outbound_group_session, c_void_p, c_size_t) +outbound_group_session_function( + lib.olm_init_outbound_group_session_random_length, +) +outbound_group_session_function( + lib.olm_init_outbound_group_session, + c_void_p, c_size_t, +) lib.olm_outbound_group_session_message_index.argtypes = [c_void_p] lib.olm_outbound_group_session_message_index.restype = c_uint32 -outbound_group_session_function(lib.olm_group_encrypt_message_length, c_size_t) -outbound_group_session_function(lib.olm_group_encrypt, +outbound_group_session_function( + lib.olm_group_encrypt_message_length, + c_size_t, +) +outbound_group_session_function( + lib.olm_group_encrypt, c_void_p, c_size_t, # Plaintext c_void_p, c_size_t, # Message ) -outbound_group_session_function(lib.olm_outbound_group_session_id_length) -outbound_group_session_function(lib.olm_outbound_group_session_id, c_void_p, c_size_t) -outbound_group_session_function(lib.olm_outbound_group_session_key_length) -outbound_group_session_function(lib.olm_outbound_group_session_key, c_void_p, c_size_t) +outbound_group_session_function( + lib.olm_outbound_group_session_id_length, +) +outbound_group_session_function( + lib.olm_outbound_group_session_id, + c_void_p, c_size_t, +) +outbound_group_session_function( + lib.olm_outbound_group_session_key_length, +) +outbound_group_session_function( + lib.olm_outbound_group_session_key, + c_void_p, c_size_t, +) class OutboundGroupSession(object): @@ -56,10 +78,14 @@ class OutboundGroupSession(object): self.buf = create_string_buffer(lib.olm_outbound_group_session_size()) self.ptr = lib.olm_outbound_group_session(self.buf) - random_length = lib.olm_init_outbound_group_session_random_length(self.ptr) + random_length = lib.olm_init_outbound_group_session_random_length( + self.ptr + ) random = urandom(random_length) random_buffer = create_string_buffer(random) - lib.olm_init_outbound_group_session(self.ptr, random_buffer, random_length) + lib.olm_init_outbound_group_session( + self.ptr, random_buffer, random_length + ) def pickle(self, key): key_buffer = create_string_buffer(key) @@ -95,7 +121,7 @@ class OutboundGroupSession(object): def session_id(self): id_length = lib.olm_outbound_group_session_id_length(self.ptr) id_buffer = create_string_buffer(id_length) - lib.olm_outbound_group_session_id(self.ptr, id_buffer, id_length); + lib.olm_outbound_group_session_id(self.ptr, id_buffer, id_length) return id_buffer.raw def message_index(self): @@ -104,5 +130,5 @@ class OutboundGroupSession(object): def session_key(self): key_length = lib.olm_outbound_group_session_key_length(self.ptr) key_buffer = create_string_buffer(key_length) - lib.olm_outbound_group_session_key(self.ptr, key_buffer, key_length); + lib.olm_outbound_group_session_key(self.ptr, key_buffer, key_length) return key_buffer.raw diff --git a/python/olm/session.py b/python/olm/session.py index ff733b3..019ea9e 100644 --- a/python/olm/session.py +++ b/python/olm/session.py @@ -69,7 +69,7 @@ session_function( c_void_p, c_size_t, # Plaintext c_void_p, c_size_t, # Random c_void_p, c_size_t, # Message -); +) session_function( lib.olm_decrypt_max_plaintext_length, c_size_t, # Message Type @@ -82,6 +82,7 @@ session_function( c_void_p, c_size_t, # Plaintext ) + class Session(object): def __init__(self): self.buf = create_string_buffer(lib.olm_session_size()) @@ -118,7 +119,9 @@ class Session(object): ) def create_inbound(self, account, one_time_key_message): - one_time_key_message_buffer = create_string_buffer(one_time_key_message) + one_time_key_message_buffer = create_string_buffer( + one_time_key_message + ) lib.olm_create_inbound_session( self.ptr, account.ptr, @@ -127,7 +130,9 @@ class Session(object): def create_inbound_from(self, account, identity_key, one_time_key_message): identity_key_buffer = create_string_buffer(identity_key) - one_time_key_message_buffer = create_string_buffer(one_time_key_message) + one_time_key_message_buffer = create_string_buffer( + one_time_key_message + ) lib.olm_create_inbound_session_from( self.ptr, account.ptr, @@ -138,11 +143,13 @@ class Session(object): def session_id(self): id_length = lib.olm_session_id_length(self.ptr) id_buffer = create_string_buffer(id_length) - lib.olm_session_id(self.ptr, id_buffer, id_length); + lib.olm_session_id(self.ptr, id_buffer, id_length) return id_buffer.raw def matches_inbound(self, one_time_key_message): - one_time_key_message_buffer = create_string_buffer(one_time_key_message) + one_time_key_message_buffer = create_string_buffer( + one_time_key_message, + ) return bool(lib.olm_matches_inbound_session( self.ptr, one_time_key_message_buffer, len(one_time_key_message) @@ -150,7 +157,9 @@ class Session(object): def matches_inbound_from(self, identity_key, one_time_key_message): identity_key_buffer = create_string_buffer(identity_key) - one_time_key_message_buffer = create_string_buffer(one_time_key_message) + one_time_key_message_buffer = create_string_buffer( + one_time_key_message, + ) return bool(lib.olm_matches_inbound_session( self.ptr, identity_key_buffer, len(identity_key), |