Merge pull request #1488 from mitmproxy/websockets

add WebSockets support

1 files changed, 105 insertions, 0 deletions

diff --git a/test/netlib/websockets/test_utils.py b/test/netlib/websockets/test_utils.py
new file mode 100644
index 00000000..34765e04
--- /dev/null
+++ b/test/netlib/websockets/test_utils.py
@@ -0,0 +1,105 @@
+import pytest
+
+from netlib import http
+from netlib import websockets
+
+
+class TestUtils(object):
+
+    def test_client_handshake_headers(self):
+        h = websockets.client_handshake_headers(version='42')
+        assert h['sec-websocket-version'] == '42'
+
+        h = websockets.client_handshake_headers(key='some-key')
+        assert h['sec-websocket-key'] == 'some-key'
+
+        h = websockets.client_handshake_headers(protocol='foobar')
+        assert h['sec-websocket-protocol'] == 'foobar'
+
+        h = websockets.client_handshake_headers(extensions='foo; bar')
+        assert h['sec-websocket-extensions'] == 'foo; bar'
+
+    def test_server_handshake_headers(self):
+        h = websockets.server_handshake_headers('some-key')
+        assert h['sec-websocket-accept'] == '8iILEZtcVdtFD7MDlPKip9ec9nw='
+        assert 'sec-websocket-protocol' not in h
+        assert 'sec-websocket-extensions' not in h
+
+        h = websockets.server_handshake_headers('some-key', 'foobar', 'foo; bar')
+        assert h['sec-websocket-accept'] == '8iILEZtcVdtFD7MDlPKip9ec9nw='
+        assert h['sec-websocket-protocol'] == 'foobar'
+        assert h['sec-websocket-extensions'] == 'foo; bar'
+
+    @pytest.mark.parametrize("input,expected", [
+        ([(b'connection', b'upgrade'), (b'upgrade', b'websocket'), (b'sec-websocket-key', b'foobar')], True),
+        ([(b'connection', b'upgrade'), (b'upgrade', b'websocket'), (b'sec-websocket-accept', b'foobar')], True),
+        ([(b'Connection', b'UpgRaDe'), (b'Upgrade', b'WebSocKeT'), (b'Sec-WebSockeT-KeY', b'foobar')], True),
+        ([(b'Connection', b'UpgRaDe'), (b'Upgrade', b'WebSocKeT'), (b'Sec-WebSockeT-AccePt', b'foobar')], True),
+        ([(b'connection', b'foo'), (b'upgrade', b'bar'), (b'sec-websocket-key', b'foobar')], False),
+        ([(b'connection', b'upgrade'), (b'upgrade', b'websocket')], False),
+        ([(b'connection', b'upgrade'), (b'sec-websocket-key', b'foobar')], False),
+        ([(b'upgrade', b'websocket'), (b'sec-websocket-key', b'foobar')], False),
+        ([], False),
+    ])
+    def test_check_handshake(self, input, expected):
+        h = http.Headers(input)
+        assert websockets.check_handshake(h) == expected
+
+    @pytest.mark.parametrize("input,expected", [
+        ([(b'sec-websocket-version', b'13')], True),
+        ([(b'Sec-WebSockeT-VerSion', b'13')], True),
+        ([(b'sec-websocket-version', b'9')], False),
+        ([(b'sec-websocket-version', b'42')], False),
+        ([(b'sec-websocket-version', b'')], False),
+        ([], False),
+    ])
+    def test_check_client_version(self, input, expected):
+        h = http.Headers(input)
+        assert websockets.check_client_version(h) == expected
+
+    @pytest.mark.parametrize("input,expected", [
+        ('foobar', b'AzhRPA4TNwR6I/riJheN0TfR7+I='),
+        (b'foobar', b'AzhRPA4TNwR6I/riJheN0TfR7+I='),
+    ])
+    def test_create_server_nonce(self, input, expected):
+        assert websockets.create_server_nonce(input) == expected
+
+    @pytest.mark.parametrize("input,expected", [
+        ([(b'sec-websocket-extensions', b'foo; bar')], 'foo; bar'),
+        ([(b'Sec-WebSockeT-ExteNsionS', b'foo; bar')], 'foo; bar'),
+        ([(b'sec-websocket-extensions', b'')], ''),
+        ([], None),
+    ])
+    def test_get_extensions(self, input, expected):
+        h = http.Headers(input)
+        assert websockets.get_extensions(h) == expected
+
+    @pytest.mark.parametrize("input,expected", [
+        ([(b'sec-websocket-protocol', b'foobar')], 'foobar'),
+        ([(b'Sec-WebSockeT-ProTocoL', b'foobar')], 'foobar'),
+        ([(b'sec-websocket-protocol', b'')], ''),
+        ([], None),
+    ])
+    def test_get_protocol(self, input, expected):
+        h = http.Headers(input)
+        assert websockets.get_protocol(h) == expected
+
+    @pytest.mark.parametrize("input,expected", [
+        ([(b'sec-websocket-key', b'foobar')], 'foobar'),
+        ([(b'Sec-WebSockeT-KeY', b'foobar')], 'foobar'),
+        ([(b'sec-websocket-key', b'')], ''),
+        ([], None),
+    ])
+    def test_get_client_key(self, input, expected):
+        h = http.Headers(input)
+        assert websockets.get_client_key(h) == expected
+
+    @pytest.mark.parametrize("input,expected", [
+        ([(b'sec-websocket-accept', b'foobar')], 'foobar'),
+        ([(b'Sec-WebSockeT-AccepT', b'foobar')], 'foobar'),
+        ([(b'sec-websocket-accept', b'')], ''),
+        ([], None),
+    ])
+    def test_get_server_accept(self, input, expected):
+        h = http.Headers(input)
+        assert websockets.get_server_accept(h) == expected