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-rwxr-xr-xpython/olm/__main__.py76
1 files changed, 71 insertions, 5 deletions
diff --git a/python/olm/__main__.py b/python/olm/__main__.py
index 8bb2419..3fcf24d 100755
--- a/python/olm/__main__.py
+++ b/python/olm/__main__.py
@@ -210,14 +210,43 @@ def build_arg_parser():
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.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 group session file")
- group_encrypt.add_argument("plaintext_file", help="Plaintext",
- type=argparse.FileType('rb'), default=sys.stdin)
- group_encrypt.add_argument("message_file", help="Message",
- type=argparse.FileType('wb'), default=sys.stdout)
+ 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)",
+ 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 "+
+ "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.set_defaults(func=do_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)",
+ type=argparse.FileType('r'), nargs='?',
+ default=sys.stdin)
+ 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)
return parser
def do_outbound_group(args):
@@ -240,6 +269,43 @@ def do_group_encrypt(args):
f.write(session.pickle(args.key))
args.message_file.write(message)
+def do_group_credentials(args):
+ session = OutboundGroupSession()
+ with open(args.session_file, "rb") as f:
+ session.unpickle(args.key, f.read())
+ result = {
+ 'message_index': session.message_index(),
+ 'session_key': session.session_key(),
+ }
+ 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" % (
+ args.session_file,
+ ))
+ sys.exit(1)
+ credentials = json.load(args.credentials_file)
+ for k in ('message_index', 'session_key'):
+ if not k in credentials:
+ sys.stderr.write("Credentials file is missing %s\n" % k)
+ sys.exit(1);
+
+ session = InboundGroupSession()
+ session.init(credentials['message_index'], credentials['session_key'])
+ with open(args.session_file, "wb") as f:
+ f.write(session.pickle(args.key))
+
+def do_group_decrypt(args):
+ session = InboundGroupSession()
+ with open(args.session_file, "rb") as f:
+ session.unpickle(args.key, f.read())
+ message = args.message_file.read()
+ plaintext = session.decrypt(message)
+ with open(args.session_file, "wb") as f:
+ f.write(session.pickle(args.key))
+ args.plaintext_file.write(plaintext)
+
if __name__ == '__main__':
parser = build_arg_parser()
args = parser.parse_args()