python: Import improved python bindings.

This commit imports the python bindings from:
    https://github.com/poljar/python-olm

The bindings are imported at commit c44b145818520d69eaaa350fb95afcb846125e0f

Minor modifications were made while importing:
    - Removed travis config
    - Removed Arch Linux PKGBUILD
    - Removed the html docs, they can be rebuild by running make html in
      the docs folder
    - Slightly modified the README

The new bindings feature some improvements over the old ones:
    - Python 2 and 3 support
    - Automatic memory management
    - Automatic memory clearing before it is freed
    - Type signatures via the python typing module
    - Full test coverage
    - Properties are utilized where it makes sense (e.g. account.id)

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

1 files changed, 100 insertions, 0 deletions

diff --git a/python/tests/account_test.py b/python/tests/account_test.py
new file mode 100644
index 0000000..4fef72c
--- /dev/null
+++ b/python/tests/account_test.py
@@ -0,0 +1,100 @@
+from builtins import int
+
+import pytest
+from hypothesis import given
+from hypothesis.strategies import text
+
+from olm import Account, OlmAccountError, OlmVerifyError, ed25519_verify
+from olm._compat import to_bytes
+
+
+class TestClass(object):
+    def test_to_bytes(self):
+        assert isinstance(to_bytes("a"), bytes)
+        assert isinstance(to_bytes(u"a"), bytes)
+        assert isinstance(to_bytes(b"a"), bytes)
+        assert isinstance(to_bytes(r"a"), bytes)
+        with pytest.raises(TypeError):
+            to_bytes(0)
+
+    def test_account_creation(self):
+        alice = Account()
+        assert alice.identity_keys
+        assert len(alice.identity_keys) == 2
+
+    def test_account_pickle(self):
+        alice = Account()
+        pickle = alice.pickle()
+        assert (alice.identity_keys == Account.from_pickle(pickle)
+                .identity_keys)
+
+    def test_invalid_unpickle(self):
+        with pytest.raises(ValueError):
+            Account.from_pickle(b"")
+
+    def test_passphrase_pickle(self):
+        alice = Account()
+        passphrase = "It's a secret to everybody"
+        pickle = alice.pickle(passphrase)
+        assert (alice.identity_keys == Account.from_pickle(
+            pickle, passphrase).identity_keys)
+
+    def test_wrong_passphrase_pickle(self):
+        alice = Account()
+        passphrase = "It's a secret to everybody"
+        pickle = alice.pickle(passphrase)
+
+        with pytest.raises(OlmAccountError):
+            Account.from_pickle(pickle, "")
+
+    def test_one_time_keys(self):
+        alice = Account()
+        alice.generate_one_time_keys(10)
+        one_time_keys = alice.one_time_keys
+        assert one_time_keys
+        assert len(one_time_keys["curve25519"]) == 10
+
+    def test_max_one_time_keys(self):
+        alice = Account()
+        assert isinstance(alice.max_one_time_keys, int)
+
+    def test_publish_one_time_keys(self):
+        alice = Account()
+        alice.generate_one_time_keys(10)
+        one_time_keys = alice.one_time_keys
+
+        assert one_time_keys
+        assert len(one_time_keys["curve25519"]) == 10
+
+        alice.mark_keys_as_published()
+        assert not alice.one_time_keys["curve25519"]
+
+    def test_clear(self):
+        alice = Account()
+        del alice
+
+    @given(text())
+    def test_valid_signature(self, message):
+        alice = Account()
+
+        signature = alice.sign(message)
+        signing_key = alice.identity_keys["ed25519"]
+
+        assert signature
+        assert signing_key
+
+        ed25519_verify(signing_key, message, signature)
+
+    @given(text())
+    def test_invalid_signature(self, message):
+        alice = Account()
+        bob = Account()
+
+        signature = alice.sign(message)
+        signing_key = bob.identity_keys["ed25519"]
+
+        assert signature
+        assert signing_key
+
+        with pytest.raises(OlmVerifyError):
+            ed25519_verify(signing_key, message, signature)