python: Remove the python bindings.

Signed-off-by: Damir Jelić <poljar@termina.org.uk>

8 files changed, 0 insertions, 1158 deletions

diff --git a/python/olm/__init__.py b/python/olm/__init__.py
deleted file mode 100644
index f74cbcb..0000000
--- a/python/olm/__init__.py
+++ /dev/null
@@ -1,5 +0,0 @@
-from .account import Account
-from .session import Session
-from .outbound_group_session import OutboundGroupSession
-from .inbound_group_session import InboundGroupSession
-from .utility import ed25519_verify
diff --git a/python/olm/__main__.py b/python/olm/__main__.py
deleted file mode 100755
index d062459..0000000
--- a/python/olm/__main__.py
+++ /dev/null
@@ -1,468 +0,0 @@
-#!/usr/bin/env python
-
-from __future__ import print_function
-
-import argparse
-import json
-import os
-import sys
-import yaml
-
-from . import *
-
-
-def read_base64_file(filename):
-    """Read a base64 file, dropping any CR/LF characters"""
-    with open(filename, "rb") as f:
-        return f.read().translate(None, "\r\n")
-
-
-def build_arg_parser():
-    parser = argparse.ArgumentParser()
-    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.add_argument("account_file", help="Local account file")
-
-    def do_create_account(args):
-        if os.path.exists(args.account_file):
-            sys.stderr.write("Account %r file already exists" % (
-                args.account_file,
-            ))
-            sys.exit(1)
-        account = Account()
-        account.create()
-        with open(args.account_file, "wb") as f:
-            f.write(account.pickle(args.key))
-
-    create_account.set_defaults(func=do_create_account)
-
-    keys = commands.add_parser("keys", help="List public keys for an account")
-    keys.add_argument("account_file", help="Local account file")
-    keys.add_argument("--json", action="store_true", help="Output as JSON")
-
-    def do_keys(args):
-        account = Account()
-        account.unpickle(args.key, read_base64_file(args.account_file))
-        result = {
-            "account_keys": account.identity_keys(),
-            "one_time_keys": account.one_time_keys(),
-        }
-        try:
-            if args.json:
-                json.dump(result, sys.stdout, indent=4)
-            else:
-                yaml.safe_dump(result, sys.stdout, default_flow_style=False)
-        except:
-            pass
-
-    keys.set_defaults(func=do_keys)
-
-    def do_id_key(args):
-        account = Account()
-        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 public part of the identity key for an account",
-    )
-    id_key.add_argument("account_file", help="Local account file")
-    id_key.set_defaults(func=do_id_key)
-
-    def do_signing_key(args):
-        account = Account()
-        account.unpickle(args.key, read_base64_file(args.account_file))
-        print(account.identity_keys()['ed25519'])
-
-    signing_key = commands.add_parser(
-        "signing_key",
-        help="Get the public part of the signing key for an account",
-    )
-    signing_key.add_argument("account_file", help="Local account file")
-    signing_key.set_defaults(func=do_signing_key)
-
-    def do_one_time_key(args):
-        account = Account()
-        account.unpickle(args.key, read_base64_file(args.account_file))
-        keys = account.one_time_keys()['curve25519'].values()
-        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,
-            )
-            sys.exit(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.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")
-    sign.add_argument("signature_file", help="Signature to output")
-
-    def do_sign(args):
-        account = Account()
-        account.unpickle(args.key, read_base64_file(args.account_file))
-        with open_in(args.message_file) as f:
-            message = f.read()
-        signature = account.sign(message)
-        with open_out(args.signature_file) as f:
-            f.write(signature)
-
-    sign.set_defaults(func=do_sign)
-
-    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")
-
-    def do_generate_keys(args):
-        account = Account()
-        account.unpickle(args.key, read_base64_file(args.account_file))
-        account.generate_one_time_keys(args.count)
-        with open(args.account_file, "wb") as f:
-            f.write(account.pickle(args.key))
-
-    generate_keys.set_defaults(func=do_generate_keys)
-
-    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")
-    outbound.add_argument("one_time_key", help="Remote one time key")
-
-    def do_outbound(args):
-        if os.path.exists(args.session_file):
-            sys.stderr.write("Session %r file already exists" % (
-                args.session_file,
-            ))
-            sys.exit(1)
-        account = Account()
-        account.unpickle(args.key, read_base64_file(args.account_file))
-        session = Session()
-        session.create_outbound(
-            account, args.identity_key, args.one_time_key
-        )
-        with open(args.session_file, "wb") as f:
-            f.write(session.pickle(args.key))
-
-    outbound.set_defaults(func=do_outbound)
-
-    def open_in(path):
-        if path == "-":
-            return sys.stdin
-        else:
-            return open(path, "rb")
-
-    def open_out(path):
-        if path == "-":
-            return sys.stdout
-        else:
-            return open(path, "wb")
-
-    inbound = commands.add_parser("inbound", help="Create an inbound session")
-    inbound.add_argument("account_file", help="Local account file")
-    inbound.add_argument("session_file", help="Local session file")
-    inbound.add_argument("message_file", help="Message", default="-")
-    inbound.add_argument("plaintext_file", help="Plaintext", default="-")
-
-    def do_inbound(args):
-        if os.path.exists(args.session_file):
-            sys.stderr.write("Session %r file already exists" % (
-                args.session_file,
-            ))
-            sys.exit(1)
-        account = Account()
-        account.unpickle(args.key, read_base64_file(args.account_file))
-        with open_in(args.message_file) as f:
-            message_type = f.read(8)
-            message = f.read()
-        if message_type != "PRE_KEY ":
-            sys.stderr.write("Expecting a PRE_KEY message")
-            sys.exit(1)
-        session = Session()
-        session.create_inbound(account, message)
-        plaintext = session.decrypt(0, message)
-        with open(args.session_file, "wb") as f:
-            f.write(session.pickle(args.key))
-        with open_out(args.plaintext_file) as f:
-            f.write(plaintext)
-
-    inbound.set_defaults(func=do_inbound)
-
-    session_id = commands.add_parser("session_id", help="Session ID")
-    session_id.add_argument("session_file", help="Local session file")
-
-    def do_session_id(args):
-        session = Session()
-        session.unpickle(args.key, read_base64_file(args.session_file))
-        sys.stdout.write(session.session_id() + "\n")
-
-    session_id.set_defaults(func=do_session_id)
-
-    encrypt = commands.add_parser("encrypt", help="Encrypt a message")
-    encrypt.add_argument("session_file", help="Local session file")
-    encrypt.add_argument("plaintext_file", help="Plaintext", default="-")
-    encrypt.add_argument("message_file", help="Message", default="-")
-
-    def do_encrypt(args):
-        session = Session()
-        session.unpickle(args.key, read_base64_file(args.session_file))
-        with open_in(args.plaintext_file) as f:
-            plaintext = f.read()
-        message_type, message = session.encrypt(plaintext)
-        with open(args.session_file, "wb") as f:
-            f.write(session.pickle(args.key))
-        with open_out(args.message_file) as f:
-            f.write(["PRE_KEY ", "MESSAGE "][message_type])
-            f.write(message)
-
-    encrypt.set_defaults(func=do_encrypt)
-
-    decrypt = commands.add_parser("decrypt", help="Decrypt a message")
-    decrypt.add_argument("session_file", help="Local session file")
-    decrypt.add_argument("message_file", help="Message", default="-")
-    decrypt.add_argument("plaintext_file", help="Plaintext", default="-")
-
-    def do_decrypt(args):
-        session = Session()
-        session.unpickle(args.key, read_base64_file(args.session_file))
-        with open_in(args.message_file) as f:
-            message_type = f.read(8)
-            message = f.read()
-        if message_type not in {"PRE_KEY ", "MESSAGE "}:
-            sys.stderr.write("Expecting a PRE_KEY or MESSAGE message")
-            sys.exit(1)
-        message_type = 1 if message_type == "MESSAGE " else 0
-        plaintext = session.decrypt(message_type, message)
-        with open(args.session_file, "wb") as f:
-            f.write(session.pickle(args.key))
-        with open_out(args.plaintext_file) as f:
-            f.write(plaintext)
-
-    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.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 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)
-
-    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(
-        "export_file",
-        help="File to read credentials from (default stdin)",
-        type=argparse.FileType('r'), nargs='?',
-        default=sys.stdin,
-    )
-    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)",
-                               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)
-
-    export_inbound_group = commands.add_parser(
-        "export_inbound_group",
-        help="Export the keys for an inbound group session",
-    )
-    export_inbound_group.add_argument(
-        "session_file", help="Local inbound group session file",
-    )
-    export_inbound_group.add_argument(
-        "export_file", help="File to export to (default stdout)",
-        type=argparse.FileType('w'), nargs='?',
-        default=sys.stdout,
-    )
-    export_inbound_group.add_argument(
-        "--message_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)
-
-    ed25519_verify = commands.add_parser("ed25519_verify",
-                                         help="Verify an ed25519 signature")
-    ed25519_verify.add_argument(
-        "signing_key",
-        help="Public signing key used to create the signature"
-    )
-    ed25519_verify.add_argument("signature",
-                                help="Signature to be verified")
-    ed25519_verify.add_argument("message_file",
-                                help="Message file (default stdin)",
-                                type=argparse.FileType('r'), nargs='?',
-                                default=sys.stdin)
-    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" % (
-            args.session_file,
-        ))
-        sys.exit(1)
-    session = OutboundGroupSession()
-    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))
-    plaintext = args.plaintext_file.read()
-    message = session.encrypt(plaintext)
-    with open(args.session_file, "wb") as f:
-        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))
-    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 ('session_key', ):
-        if k not in credentials:
-            sys.stderr.write("Credentials file is missing %s\n" % k)
-            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" % (
-            args.session_file,
-        ))
-        sys.exit(1)
-    data = args.export_file.read().translate(None, "\r\n")
-
-    session = InboundGroupSession()
-    session.import_session(data)
-    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))
-    message = args.message_file.read()
-    plaintext, message_index = session.decrypt(message)
-    with open(args.session_file, "wb") as f:
-        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))
-    index = args.message_index
-    if index is None:
-        # default to first known index
-        index = session.first_known_index()
-    args.export_file.write(session.export_session(index))
-
-
-def do_verify_ed25519_signature(args):
-    message = args.message_file.read()
-    ed25519_verify(args.signing_key, message, args.signature)
-
-
-if __name__ == '__main__':
-    parser = build_arg_parser()
-    args = parser.parse_args()
-    args.func(args)
diff --git a/python/olm/_base.py b/python/olm/_base.py
deleted file mode 100644
index ad21d6f..0000000
--- a/python/olm/_base.py
+++ /dev/null
@@ -1,17 +0,0 @@
-import os.path
-
-from ctypes import *
-
-
-lib = cdll.LoadLibrary(os.path.join(
-    os.path.dirname(__file__), "..", "..", "build", "libolm.so.2")
-)
-
-lib.olm_error.argtypes = []
-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
deleted file mode 100644
index b103a51..0000000
--- a/python/olm/account.py
+++ /dev/null
@@ -1,136 +0,0 @@
-import json
-from os import urandom
-
-from ._base import *
-
-lib.olm_account_size.argtypes = []
-lib.olm_account_size.restype = c_size_t
-
-lib.olm_account.argtypes = [c_void_p]
-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" % (
-            func.__name__, lib.olm_account_last_error(args[0])
-        ))
-    return res
-
-
-def account_function(func, *types):
-    func.argtypes = (c_void_p,) + types
-    func.restypes = c_size_t
-    func.errcheck = account_errcheck
-
-
-account_function(
-    lib.olm_pickle_account, c_void_p, c_size_t, c_void_p, c_size_t
-)
-account_function(
-    lib.olm_unpickle_account, c_void_p, c_size_t, c_void_p, c_size_t
-)
-account_function(lib.olm_create_account_random_length)
-account_function(lib.olm_create_account, c_void_p, c_size_t)
-account_function(lib.olm_account_identity_keys_length)
-account_function(lib.olm_account_identity_keys, c_void_p, c_size_t)
-account_function(lib.olm_account_signature_length)
-account_function(lib.olm_account_sign, c_void_p, c_size_t, c_void_p, c_size_t)
-account_function(lib.olm_account_one_time_keys_length)
-account_function(lib.olm_account_one_time_keys, c_void_p, c_size_t)
-account_function(lib.olm_account_mark_keys_as_published)
-account_function(lib.olm_account_max_number_of_one_time_keys)
-account_function(lib.olm_pickle_account_length)
-account_function(
-    lib.olm_account_generate_one_time_keys_random_length,
-    c_size_t
-)
-account_function(
-    lib.olm_account_generate_one_time_keys,
-    c_size_t,
-    c_void_p, c_size_t
-)
-account_function(
-    lib.olm_remove_one_time_keys,
-    c_void_p  # Session
-)
-
-
-class Account(object):
-    def __init__(self):
-        self.buf = create_string_buffer(lib.olm_account_size())
-        self.ptr = lib.olm_account(self.buf)
-
-    def create(self):
-        random_length = lib.olm_create_account_random_length(self.ptr)
-        random = urandom(random_length)
-        random_buffer = create_string_buffer(random)
-        lib.olm_create_account(self.ptr, random_buffer, random_length)
-
-    def pickle(self, key):
-        key_buffer = create_string_buffer(key)
-        pickle_length = lib.olm_pickle_account_length(self.ptr)
-        pickle_buffer = create_string_buffer(pickle_length)
-        lib.olm_pickle_account(
-            self.ptr, key_buffer, len(key), pickle_buffer, pickle_length
-        )
-        return pickle_buffer.raw
-
-    def unpickle(self, key, pickle):
-        key_buffer = create_string_buffer(key)
-        pickle_buffer = create_string_buffer(pickle)
-        lib.olm_unpickle_account(
-            self.ptr, key_buffer, len(key), pickle_buffer, len(pickle)
-        )
-
-    def identity_keys(self):
-        out_length = lib.olm_account_identity_keys_length(self.ptr)
-        out_buffer = create_string_buffer(out_length)
-        lib.olm_account_identity_keys(
-            self.ptr,
-            out_buffer, out_length
-        )
-        return json.loads(out_buffer.raw)
-
-    def sign(self, message):
-        out_length = lib.olm_account_signature_length(self.ptr)
-        message_buffer = create_string_buffer(message)
-        out_buffer = create_string_buffer(out_length)
-        lib.olm_account_sign(
-            self.ptr, message_buffer, len(message), out_buffer, out_length
-        )
-        return out_buffer.raw
-
-    def one_time_keys(self):
-        out_length = lib.olm_account_one_time_keys_length(self.ptr)
-        out_buffer = create_string_buffer(out_length)
-        lib.olm_account_one_time_keys(self.ptr, out_buffer, out_length)
-        return json.loads(out_buffer.raw)
-
-    def mark_keys_as_published(self):
-        lib.olm_account_mark_keys_as_published(self.ptr)
-
-    def max_number_of_one_time_keys(self):
-        return lib.olm_account_max_number_of_one_time_keys(self.ptr)
-
-    def generate_one_time_keys(self, count):
-        random_length = lib.olm_account_generate_one_time_keys_random_length(
-            self.ptr, count
-        )
-        random = urandom(random_length)
-        random_buffer = create_string_buffer(random)
-        lib.olm_account_generate_one_time_keys(
-            self.ptr, count, random_buffer, random_length
-        )
-
-    def remove_one_time_keys(self, session):
-        lib.olm_remove_one_time_keys(
-            self.ptr,
-            session.ptr
-        )
-
-    def clear(self):
-        pass
diff --git a/python/olm/inbound_group_session.py b/python/olm/inbound_group_session.py
deleted file mode 100644
index 286aedb..0000000
--- a/python/olm/inbound_group_session.py
+++ /dev/null
@@ -1,138 +0,0 @@
-import json
-
-from ._base import *
-
-lib.olm_inbound_group_session_size.argtypes = []
-lib.olm_inbound_group_session_size.restype = c_size_t
-
-lib.olm_inbound_group_session.argtypes = [c_void_p]
-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" % (
-            func.__name__, lib.olm_inbound_group_session_last_error(args[0])
-        ))
-    return res
-
-
-def inbound_group_session_function(func, *types):
-    func.argtypes = (c_void_p,) + types
-    func.restypes = c_size_t
-    func.errcheck = inbound_group_session_errcheck
-
-
-inbound_group_session_function(
-    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,
-)
-
-inbound_group_session_function(
-    lib.olm_init_inbound_group_session, c_void_p, c_size_t
-)
-
-inbound_group_session_function(
-    lib.olm_import_inbound_group_session, c_void_p, c_size_t
-)
-
-inbound_group_session_function(
-    lib.olm_group_decrypt_max_plaintext_length, c_void_p, c_size_t
-)
-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
-)
-
-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,
-)
-
-
-class InboundGroupSession(object):
-    def __init__(self):
-        self.buf = create_string_buffer(lib.olm_inbound_group_session_size())
-        self.ptr = lib.olm_inbound_group_session(self.buf)
-
-    def pickle(self, key):
-        key_buffer = create_string_buffer(key)
-        pickle_length = lib.olm_pickle_inbound_group_session_length(self.ptr)
-        pickle_buffer = create_string_buffer(pickle_length)
-        lib.olm_pickle_inbound_group_session(
-            self.ptr, key_buffer, len(key), pickle_buffer, pickle_length
-        )
-        return pickle_buffer.raw
-
-    def unpickle(self, key, pickle):
-        key_buffer = create_string_buffer(key)
-        pickle_buffer = create_string_buffer(pickle)
-        lib.olm_unpickle_inbound_group_session(
-            self.ptr, key_buffer, len(key), pickle_buffer, len(pickle)
-        )
-
-    def init(self, session_key):
-        key_buffer = create_string_buffer(session_key)
-        lib.olm_init_inbound_group_session(
-            self.ptr, key_buffer, len(session_key)
-        )
-
-    def import_session(self, session_key):
-        key_buffer = create_string_buffer(session_key)
-        lib.olm_import_inbound_group_session(
-            self.ptr, key_buffer, len(session_key)
-        )
-
-    def decrypt(self, message):
-        message_buffer = create_string_buffer(message)
-        max_plaintext_length = lib.olm_group_decrypt_max_plaintext_length(
-            self.ptr, message_buffer, len(message)
-        )
-        plaintext_buffer = create_string_buffer(max_plaintext_length)
-        message_buffer = create_string_buffer(message)
-
-        message_index = c_uint32()
-        plaintext_length = lib.olm_group_decrypt(
-            self.ptr, message_buffer, len(message),
-            plaintext_buffer, max_plaintext_length,
-            byref(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)
-        id_buffer = create_string_buffer(id_length)
-        lib.olm_inbound_group_session_id(self.ptr, id_buffer, id_length)
-        return id_buffer.raw
-
-    def first_known_index(self):
-        return lib.olm_inbound_group_session_first_known_index(self.ptr)
-
-    def export_session(self, message_index):
-        length = lib.olm_export_inbound_group_session_length(self.ptr)
-        buffer = create_string_buffer(length)
-        lib.olm_export_inbound_group_session(self.ptr, buffer, length,
-                                             message_index)
-        return buffer.raw
diff --git a/python/olm/outbound_group_session.py b/python/olm/outbound_group_session.py
deleted file mode 100644
index 5032b34..0000000
--- a/python/olm/outbound_group_session.py
+++ /dev/null
@@ -1,134 +0,0 @@
-import json
-from os import urandom
-
-from ._base import *
-
-lib.olm_outbound_group_session_size.argtypes = []
-lib.olm_outbound_group_session_size.restype = c_size_t
-
-lib.olm_outbound_group_session.argtypes = [c_void_p]
-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" % (
-            func.__name__, lib.olm_outbound_group_session_last_error(args[0])
-        ))
-    return res
-
-
-def outbound_group_session_function(func, *types):
-    func.argtypes = (c_void_p,) + types
-    func.restypes = c_size_t
-    func.errcheck = outbound_group_session_errcheck
-
-
-outbound_group_session_function(
-    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,
-)
-
-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,
-    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,
-)
-
-
-class OutboundGroupSession(object):
-    def __init__(self):
-        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 = urandom(random_length)
-        random_buffer = create_string_buffer(random)
-        lib.olm_init_outbound_group_session(
-            self.ptr, random_buffer, random_length
-        )
-
-    def pickle(self, key):
-        key_buffer = create_string_buffer(key)
-        pickle_length = lib.olm_pickle_outbound_group_session_length(self.ptr)
-        pickle_buffer = create_string_buffer(pickle_length)
-        lib.olm_pickle_outbound_group_session(
-            self.ptr, key_buffer, len(key), pickle_buffer, pickle_length
-        )
-        return pickle_buffer.raw
-
-    def unpickle(self, key, pickle):
-        key_buffer = create_string_buffer(key)
-        pickle_buffer = create_string_buffer(pickle)
-        lib.olm_unpickle_outbound_group_session(
-            self.ptr, key_buffer, len(key), pickle_buffer, len(pickle)
-        )
-
-    def encrypt(self, plaintext):
-        message_length = lib.olm_group_encrypt_message_length(
-            self.ptr, len(plaintext)
-        )
-        message_buffer = create_string_buffer(message_length)
-
-        plaintext_buffer = create_string_buffer(plaintext)
-
-        lib.olm_group_encrypt(
-            self.ptr,
-            plaintext_buffer, len(plaintext),
-            message_buffer, message_length,
-        )
-        return message_buffer.raw
-
-    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)
-        return id_buffer.raw
-
-    def message_index(self):
-        return lib.olm_outbound_group_session_message_index(self.ptr)
-
-    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)
-        return key_buffer.raw
diff --git a/python/olm/session.py b/python/olm/session.py
deleted file mode 100644
index 019ea9e..0000000
--- a/python/olm/session.py
+++ /dev/null
@@ -1,204 +0,0 @@
-from os import urandom
-
-from ._base import *
-
-
-lib.olm_session_size.argtypes = []
-lib.olm_session_size.restype = c_size_t
-
-lib.olm_session.argtypes = [c_void_p]
-lib.olm_session.restype = c_void_p
-
-lib.olm_session_last_error.argtypes = [c_void_p]
-lib.olm_session_last_error.restype = c_char_p
-
-
-def session_errcheck(res, func, args):
-    if res == ERR:
-        raise OlmError("%s: %s" % (
-            func.__name__, lib.olm_session_last_error(args[0])
-        ))
-    return res
-
-
-def session_function(func, *types):
-    func.argtypes = (c_void_p,) + types
-    func.restypes = c_size_t
-    func.errcheck = session_errcheck
-
-session_function(lib.olm_session_last_error)
-session_function(
-    lib.olm_pickle_session, c_void_p, c_size_t, c_void_p, c_size_t
-)
-session_function(
-    lib.olm_unpickle_session, c_void_p, c_size_t, c_void_p, c_size_t
-)
-session_function(lib.olm_create_outbound_session_random_length)
-session_function(
-    lib.olm_create_outbound_session,
-    c_void_p,  # Account
-    c_void_p, c_size_t,  # Identity Key
-    c_void_p, c_size_t,  # One Time Key
-    c_void_p, c_size_t,  # Random
-)
-session_function(
-    lib.olm_create_inbound_session,
-    c_void_p,  # Account
-    c_void_p, c_size_t,  # Pre Key Message
-)
-session_function(
-    lib.olm_create_inbound_session_from,
-    c_void_p,  # Account
-    c_void_p, c_size_t,  # Identity Key
-    c_void_p, c_size_t,  # Pre Key Message
-)
-session_function(lib.olm_session_id_length)
-session_function(lib.olm_session_id, c_void_p, c_size_t)
-session_function(lib.olm_matches_inbound_session, c_void_p, c_size_t)
-session_function(
-    lib.olm_matches_inbound_session_from,
-    c_void_p, c_size_t,  # Identity Key
-    c_void_p, c_size_t,  # Pre Key Message
-)
-session_function(lib.olm_pickle_session_length)
-session_function(lib.olm_encrypt_message_type)
-session_function(lib.olm_encrypt_random_length)
-session_function(lib.olm_encrypt_message_length, c_size_t)
-session_function(
-    lib.olm_encrypt,
-    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
-    c_void_p, c_size_t,  # Message
-)
-session_function(
-    lib.olm_decrypt,
-    c_size_t,  # Message Type
-    c_void_p, c_size_t,  # Message
-    c_void_p, c_size_t,  # Plaintext
-)
-
-
-class Session(object):
-    def __init__(self):
-        self.buf = create_string_buffer(lib.olm_session_size())
-        self.ptr = lib.olm_session(self.buf)
-
-    def pickle(self, key):
-        key_buffer = create_string_buffer(key)
-        pickle_length = lib.olm_pickle_session_length(self.ptr)
-        pickle_buffer = create_string_buffer(pickle_length)
-        lib.olm_pickle_session(
-            self.ptr, key_buffer, len(key), pickle_buffer, pickle_length
-        )
-        return pickle_buffer.raw
-
-    def unpickle(self, key, pickle):
-        key_buffer = create_string_buffer(key)
-        pickle_buffer = create_string_buffer(pickle)
-        lib.olm_unpickle_session(
-            self.ptr, key_buffer, len(key), pickle_buffer, len(pickle)
-        )
-
-    def create_outbound(self, account, identity_key, one_time_key):
-        r_length = lib.olm_create_outbound_session_random_length(self.ptr)
-        random = urandom(r_length)
-        random_buffer = create_string_buffer(random)
-        identity_key_buffer = create_string_buffer(identity_key)
-        one_time_key_buffer = create_string_buffer(one_time_key)
-        lib.olm_create_outbound_session(
-            self.ptr,
-            account.ptr,
-            identity_key_buffer, len(identity_key),
-            one_time_key_buffer, len(one_time_key),
-            random_buffer, r_length
-        )
-
-    def create_inbound(self, account, 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,
-            one_time_key_message_buffer, len(one_time_key_message)
-        )
-
-    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
-        )
-        lib.olm_create_inbound_session_from(
-            self.ptr,
-            account.ptr,
-            identity_key_buffer, len(identity_key),
-            one_time_key_message_buffer, len(one_time_key_message)
-        )
-
-    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)
-        return id_buffer.raw
-
-    def matches_inbound(self, 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)
-        ))
-
-    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,
-        )
-        return bool(lib.olm_matches_inbound_session(
-            self.ptr,
-            identity_key_buffer, len(identity_key),
-            one_time_key_message_buffer, len(one_time_key_message)
-        ))
-
-    def encrypt(self, plaintext):
-        r_length = lib.olm_encrypt_random_length(self.ptr)
-        random = urandom(r_length)
-        random_buffer = create_string_buffer(random)
-
-        message_type = lib.olm_encrypt_message_type(self.ptr)
-        message_length = lib.olm_encrypt_message_length(
-            self.ptr, len(plaintext)
-        )
-        message_buffer = create_string_buffer(message_length)
-
-        plaintext_buffer = create_string_buffer(plaintext)
-
-        lib.olm_encrypt(
-            self.ptr,
-            plaintext_buffer, len(plaintext),
-            random_buffer, r_length,
-            message_buffer, message_length,
-        )
-        return message_type, message_buffer.raw
-
-    def decrypt(self, message_type, message):
-        message_buffer = create_string_buffer(message)
-        max_plaintext_length = lib.olm_decrypt_max_plaintext_length(
-            self.ptr, message_type, message_buffer, len(message)
-        )
-        plaintext_buffer = create_string_buffer(max_plaintext_length)
-        message_buffer = create_string_buffer(message)
-        plaintext_length = lib.olm_decrypt(
-            self.ptr, message_type, message_buffer, len(message),
-            plaintext_buffer, max_plaintext_length
-        )
-        return plaintext_buffer.raw[:plaintext_length]
-
-    def clear(self):
-        pass
diff --git a/python/olm/utility.py b/python/olm/utility.py
deleted file mode 100644
index dac0225..0000000
--- a/python/olm/utility.py
+++ /dev/null
@@ -1,56 +0,0 @@
-from ._base import lib, c_void_p, c_size_t, c_char_p, \
-    create_string_buffer, ERR, OlmError
-
-lib.olm_utility_size.argtypes = []
-lib.olm_utility_size.restype = c_size_t
-
-lib.olm_utility.argtypes = [c_void_p]
-lib.olm_utility.restype = c_void_p
-
-lib.olm_utility_last_error.argtypes = [c_void_p]
-lib.olm_utility_last_error.restype = c_char_p
-
-
-def utility_errcheck(res, func, args):
-    if res == ERR:
-        raise OlmError("%s: %s" % (
-            func.__name__, lib.olm_utility_last_error(args[0])
-        ))
-    return res
-
-
-def utility_function(func, *types):
-    func.argtypes = (c_void_p,) + types
-    func.restypes = c_size_t
-    func.errcheck = utility_errcheck
-
-utility_function(
-    lib.olm_ed25519_verify,
-    c_void_p, c_size_t,  # key, key_length
-    c_void_p, c_size_t,  # message, message_length
-    c_void_p, c_size_t,  # signature, signature_length
-)
-
-
-class Utility(object):
-    def __init__(self):
-        self.buf = create_string_buffer(lib.olm_utility_size())
-        self.ptr = lib.olm_utility(self.buf)
-
-_utility = None
-
-
-def ed25519_verify(key, message, signature):
-    """ Verify an ed25519 signature. Raises an OlmError if verification fails.
-    Args:
-        key(bytes): The ed25519 public key used for signing.
-        message(bytes): The signed message.
-        signature(bytes): The message signature.
-    """
-    global _utility
-    if not _utility:
-        _utility = Utility()
-    lib.olm_ed25519_verify(_utility.ptr,
-                           key, len(key),
-                           message, len(message),
-                           signature, len(signature))