Separate out raw WebSocket protocol handling

6 files changed, 448 insertions, 377 deletions

diff --git a/tests/echo.py b/tests/echo.py
index e6a6851..3d81e04 100755
--- a/tests/echo.py
+++ b/tests/echo.py
@@ -12,7 +12,7 @@ as taken from http://docs.python.org/dev/library/ssl.html#certificates
 
 import os, sys, select, optparse, logging
 sys.path.insert(0,os.path.join(os.path.dirname(__file__), ".."))
-from websockify.websocket import WebSocketServer, WebSocketRequestHandler
+from websockify.websocketserver import WebSocketServer, WebSocketRequestHandler
 
 class WebSocketEcho(WebSocketRequestHandler):
     """
@@ -48,7 +48,7 @@ class WebSocketEcho(WebSocketRequestHandler):
                 cqueue.extend(frames)
 
                 if closed:
-                    self.send_close()
+                    break
 
 if __name__ == '__main__':
     parser = optparse.OptionParser(usage="%prog [options] listen_port")
diff --git a/tests/echo_client.py b/tests/echo_client.py
new file mode 100755
index 0000000..6d745ec
--- /dev/null
+++ b/tests/echo_client.py
@@ -0,0 +1,70 @@
+#!/usr/bin/env python
+
+import os
+import sys
+import optparse
+import select
+
+sys.path.insert(0,os.path.join(os.path.dirname(__file__), ".."))
+from websockify.websocket import WebSocket, \
+    WebSocketWantReadError, WebSocketWantWriteError
+
+parser = optparse.OptionParser(usage="%prog URL")
+(opts, args) = parser.parse_args()
+
+try:
+    if len(args) != 1: raise
+    URL = args[0]
+except:
+    parser.error("Invalid arguments")
+
+sock = WebSocket()
+print("Connecting to %s..." % URL)
+sock.connect(URL)
+print("Connected.")
+
+def send(msg):
+    while True:
+        try:
+            sock.sendmsg(msg)
+            break
+        except WebSocketWantReadError:
+            msg = ''
+            ins, outs, excepts = select.select([sock], [], [])
+            if excepts: raise Exception("Socket exception")
+        except WebSocketWantWriteError:
+            msg = ''
+            ins, outs, excepts = select.select([], [sock], [])
+            if excepts: raise Exception("Socket exception")
+
+def read():
+    while True:
+        try:
+            return sock.recvmsg()
+        except WebSocketWantReadError:
+            ins, outs, excepts = select.select([sock], [], [])
+            if excepts: raise Exception("Socket exception")
+        except WebSocketWantWriteError:
+            ins, outs, excepts = select.select([], [sock], [])
+            if excepts: raise Exception("Socket exception")
+
+counter = 1
+while True:
+    msg = "Message #%d" % counter
+    counter += 1
+    send(msg)
+    print("Sent message: %r" % msg)
+
+    while True:
+        ins, outs, excepts = select.select([sock], [], [], 1.0)
+        if excepts: raise Exception("Socket exception")
+
+        if ins == []:
+            break
+
+        while True:
+            msg = read()
+            print("Received message: %r" % msg)
+
+            if not sock.pending():
+                break
diff --git a/tests/load.py b/tests/load.py
index c76feb1..caf6b58 100755
--- a/tests/load.py
+++ b/tests/load.py
@@ -8,7 +8,7 @@ given a sequence number. Any errors are reported and counted.
 
 import sys, os, select, random, time, optparse, logging
 sys.path.insert(0,os.path.join(os.path.dirname(__file__), ".."))
-from websockify.websocket import WebSocketServer, WebSocketRequestHandler
+from websockify.websocketserver import WebSocketServer, WebSocketRequestHandler
 
 class WebSocketLoadServer(WebSocketServer):
 
@@ -35,12 +35,10 @@ class WebSocketLoad(WebSocketRequestHandler):
         self.send_cnt = 0
         self.recv_cnt = 0
 
-        try:
-            self.responder(self.request)
-        except:
-            print "accumulated errors:", self.errors
-            self.errors = 0
-            raise
+        self.responder(self.request)
+
+        print "accumulated errors:", self.errors
+        self.errors = 0
 
     def responder(self, client):
         c_pend = 0
@@ -62,7 +60,7 @@ class WebSocketLoad(WebSocketRequestHandler):
                     print err
 
                 if closed:
-                    self.send_close()
+                    break
 
             now = time.time() * 1000
             if client in outs:
diff --git a/tests/test_websocket.py b/tests/test_websocket.py
index 545fa1c..77d0eca 100644
--- a/tests/test_websocket.py
+++ b/tests/test_websocket.py
@@ -15,418 +15,74 @@
 #    under the License.
 
 """ Unit tests for websocket """
-import errno
-import os
-import logging
-import select
-import shutil
-import socket
-import ssl
-from mox3 import stubout
-import sys
-import tempfile
 import unittest
-import socket
-import signal
 from websockify import websocket
 
-try:
-    from SimpleHTTPServer import SimpleHTTPRequestHandler
-except ImportError:
-    from http.server import SimpleHTTPRequestHandler
-
-try:
-    from StringIO import StringIO
-    BytesIO = StringIO
-except ImportError:
-    from io import StringIO
-    from io import BytesIO
-
-
-
-
-def raise_oserror(*args, **kwargs):
-    raise OSError('fake error')
-
-
-class FakeSocket(object):
-    def __init__(self, data=''):
-        if isinstance(data, bytes):
-            self._data = data
-        else:
-            self._data = data.encode('latin_1')
-
-    def recv(self, amt, flags=None):
-        res = self._data[0:amt]
-        if not (flags & socket.MSG_PEEK):
-            self._data = self._data[amt:]
-
-        return res
-
-    def makefile(self, mode='r', buffsize=None):
-        if 'b' in mode:
-            return BytesIO(self._data)
-        else:
-            return StringIO(self._data.decode('latin_1'))
-
-
-class WebSocketRequestHandlerTestCase(unittest.TestCase):
-    def setUp(self):
-        super(WebSocketRequestHandlerTestCase, self).setUp()
-        self.stubs = stubout.StubOutForTesting()
-        self.tmpdir = tempfile.mkdtemp('-websockify-tests')
-        # Mock this out cause it screws tests up
-        self.stubs.Set(os, 'chdir', lambda *args, **kwargs: None)
-        self.stubs.Set(SimpleHTTPRequestHandler, 'send_response',
-                       lambda *args, **kwargs: None)
-
-    def tearDown(self):
-        """Called automatically after each test."""
-        self.stubs.UnsetAll()
-        os.rmdir(self.tmpdir)
-        super(WebSocketRequestHandlerTestCase, self).tearDown()
-
-    def _get_server(self, handler_class=websocket.WebSocketRequestHandler,
-                    **kwargs):
-        web = kwargs.pop('web', self.tmpdir)
-        return websocket.WebSocketServer(
-            handler_class, listen_host='localhost',
-            listen_port=80, key=self.tmpdir, web=web,
-            record=self.tmpdir, daemon=False, ssl_only=0, idle_timeout=1,
-            **kwargs)
-
-    def test_normal_get_with_only_upgrade_returns_error(self):
-        server = self._get_server(web=None)
-        handler = websocket.WebSocketRequestHandler(
-            FakeSocket('GET /tmp.txt HTTP/1.1'), '127.0.0.1', server)
-
-        def fake_send_response(self, code, message=None):
-            self.last_code = code
-
-        self.stubs.Set(SimpleHTTPRequestHandler, 'send_response',
-                       fake_send_response)
-
-        handler.do_GET()
-        self.assertEqual(handler.last_code, 405)
-
-    def test_list_dir_with_file_only_returns_error(self):
-        server = self._get_server(file_only=True)
-        handler = websocket.WebSocketRequestHandler(
-            FakeSocket('GET / HTTP/1.1'), '127.0.0.1', server)
-
-        def fake_send_response(self, code, message=None):
-            self.last_code = code
-
-        self.stubs.Set(SimpleHTTPRequestHandler, 'send_response',
-                       fake_send_response)
-
-        handler.path = '/'
-        handler.do_GET()
-        self.assertEqual(handler.last_code, 404)
-
-
-class WebSocketServerTestCase(unittest.TestCase):
-    def setUp(self):
-        super(WebSocketServerTestCase, self).setUp()
-        self.stubs = stubout.StubOutForTesting()
-        self.tmpdir = tempfile.mkdtemp('-websockify-tests')
-        # Mock this out cause it screws tests up
-        self.stubs.Set(os, 'chdir', lambda *args, **kwargs: None)
-
-    def tearDown(self):
-        """Called automatically after each test."""
-        self.stubs.UnsetAll()
-        os.rmdir(self.tmpdir)
-        super(WebSocketServerTestCase, self).tearDown()
-
-    def _get_server(self, handler_class=websocket.WebSocketRequestHandler,
-                    **kwargs):
-        return websocket.WebSocketServer(
-            handler_class, listen_host='localhost',
-            listen_port=80, key=self.tmpdir, web=self.tmpdir,
-            record=self.tmpdir, **kwargs)
-
-    def test_daemonize_raises_error_while_closing_fds(self):
-        server = self._get_server(daemon=True, ssl_only=1, idle_timeout=1)
-        self.stubs.Set(os, 'fork', lambda *args: 0)
-        self.stubs.Set(signal, 'signal', lambda *args: None)
-        self.stubs.Set(os, 'setsid', lambda *args: None)
-        self.stubs.Set(os, 'close', raise_oserror)
-        self.assertRaises(OSError, server.daemonize, keepfd=None, chdir='./')
-
-    def test_daemonize_ignores_ebadf_error_while_closing_fds(self):
-        def raise_oserror_ebadf(fd):
-            raise OSError(errno.EBADF, 'fake error')
-
-        server = self._get_server(daemon=True, ssl_only=1, idle_timeout=1)
-        self.stubs.Set(os, 'fork', lambda *args: 0)
-        self.stubs.Set(os, 'setsid', lambda *args: None)
-        self.stubs.Set(signal, 'signal', lambda *args: None)
-        self.stubs.Set(os, 'close', raise_oserror_ebadf)
-        self.stubs.Set(os, 'open', raise_oserror)
-        self.assertRaises(OSError, server.daemonize, keepfd=None, chdir='./')
-
-    def test_handshake_fails_on_not_ready(self):
-        server = self._get_server(daemon=True, ssl_only=0, idle_timeout=1)
-
-        def fake_select(rlist, wlist, xlist, timeout=None):
-            return ([], [], [])
-
-        self.stubs.Set(select, 'select', fake_select)
-        self.assertRaises(
-            websocket.WebSocketServer.EClose, server.do_handshake,
-            FakeSocket(), '127.0.0.1')
-
-    def test_empty_handshake_fails(self):
-        server = self._get_server(daemon=True, ssl_only=0, idle_timeout=1)
-
-        sock = FakeSocket('')
-
-        def fake_select(rlist, wlist, xlist, timeout=None):
-            return ([sock], [], [])
-
-        self.stubs.Set(select, 'select', fake_select)
-        self.assertRaises(
-            websocket.WebSocketServer.EClose, server.do_handshake,
-            sock, '127.0.0.1')
-
-    def test_handshake_policy_request(self):
-        # TODO(directxman12): implement
-        pass
-
-    def test_handshake_ssl_only_without_ssl_raises_error(self):
-        server = self._get_server(daemon=True, ssl_only=1, idle_timeout=1)
-
-        sock = FakeSocket('some initial data')
-
-        def fake_select(rlist, wlist, xlist, timeout=None):
-            return ([sock], [], [])
-
-        self.stubs.Set(select, 'select', fake_select)
-        self.assertRaises(
-            websocket.WebSocketServer.EClose, server.do_handshake,
-            sock, '127.0.0.1')
-
-    def test_do_handshake_no_ssl(self):
-        class FakeHandler(object):
-            CALLED = False
-            def __init__(self, *args, **kwargs):
-                type(self).CALLED = True
-
-        FakeHandler.CALLED = False
-
-        server = self._get_server(
-            handler_class=FakeHandler, daemon=True,
-            ssl_only=0, idle_timeout=1)
-
-        sock = FakeSocket('some initial data')
-
-        def fake_select(rlist, wlist, xlist, timeout=None):
-            return ([sock], [], [])
-
-        self.stubs.Set(select, 'select', fake_select)
-        self.assertEqual(server.do_handshake(sock, '127.0.0.1'), sock)
-        self.assertTrue(FakeHandler.CALLED, True)
-
-    def test_do_handshake_ssl(self):
-        # TODO(directxman12): implement this
-        pass
-
-    def test_do_handshake_ssl_without_ssl_raises_error(self):
-        # TODO(directxman12): implement this
-        pass
-
-    def test_do_handshake_ssl_without_cert_raises_error(self):
-        server = self._get_server(daemon=True, ssl_only=0, idle_timeout=1,
-                                  cert='afdsfasdafdsafdsafdsafdas')
-
-        sock = FakeSocket("\x16some ssl data")
-
-        def fake_select(rlist, wlist, xlist, timeout=None):
-            return ([sock], [], [])
-
-        self.stubs.Set(select, 'select', fake_select)
-        self.assertRaises(
-            websocket.WebSocketServer.EClose, server.do_handshake,
-            sock, '127.0.0.1')
-
-    def test_do_handshake_ssl_error_eof_raises_close_error(self):
-        server = self._get_server(daemon=True, ssl_only=0, idle_timeout=1)
-
-        sock = FakeSocket("\x16some ssl data")
-
-        def fake_select(rlist, wlist, xlist, timeout=None):
-            return ([sock], [], [])
-
-        def fake_wrap_socket(*args, **kwargs):
-            raise ssl.SSLError(ssl.SSL_ERROR_EOF)
-
-        self.stubs.Set(select, 'select', fake_select)
-        self.stubs.Set(ssl, 'wrap_socket', fake_wrap_socket)
-        self.assertRaises(
-            websocket.WebSocketServer.EClose, server.do_handshake,
-            sock, '127.0.0.1')
-
-    def test_fallback_sigchld_handler(self):
-        # TODO(directxman12): implement this
-        pass
-
-    def test_start_server_error(self):
-        server = self._get_server(daemon=False, ssl_only=1, idle_timeout=1)
-        sock = server.socket('localhost')
-
-        def fake_select(rlist, wlist, xlist, timeout=None):
-            raise Exception("fake error")
-
-        self.stubs.Set(websocket.WebSocketServer, 'socket',
-                       lambda *args, **kwargs: sock)
-        self.stubs.Set(websocket.WebSocketServer, 'daemonize',
-                       lambda *args, **kwargs: None)
-        self.stubs.Set(select, 'select', fake_select)
-        server.start_server()
-
-    def test_start_server_keyboardinterrupt(self):
-        server = self._get_server(daemon=False, ssl_only=0, idle_timeout=1)
-        sock = server.socket('localhost')
-
-        def fake_select(rlist, wlist, xlist, timeout=None):
-            raise KeyboardInterrupt
-
-        self.stubs.Set(websocket.WebSocketServer, 'socket',
-                       lambda *args, **kwargs: sock)
-        self.stubs.Set(websocket.WebSocketServer, 'daemonize',
-                       lambda *args, **kwargs: None)
-        self.stubs.Set(select, 'select', fake_select)
-        server.start_server()
-
-    def test_start_server_systemexit(self):
-        server = self._get_server(daemon=False, ssl_only=0, idle_timeout=1)
-        sock = server.socket('localhost')
-
-        def fake_select(rlist, wlist, xlist, timeout=None):
-            sys.exit()
-
-        self.stubs.Set(websocket.WebSocketServer, 'socket',
-                       lambda *args, **kwargs: sock)
-        self.stubs.Set(websocket.WebSocketServer, 'daemonize',
-                       lambda *args, **kwargs: None)
-        self.stubs.Set(select, 'select', fake_select)
-        server.start_server()
-
-    def test_socket_set_keepalive_options(self):
-        keepcnt = 12
-        keepidle = 34
-        keepintvl = 56
-
-        server = self._get_server(daemon=False, ssl_only=0, idle_timeout=1)
-        sock = server.socket('localhost',
-                             tcp_keepcnt=keepcnt,
-                             tcp_keepidle=keepidle,
-                             tcp_keepintvl=keepintvl)
-
-        if hasattr(socket, 'TCP_KEEPCNT'):
-            self.assertEqual(sock.getsockopt(socket.SOL_TCP,
-                                             socket.TCP_KEEPCNT), keepcnt)
-        self.assertEqual(sock.getsockopt(socket.SOL_TCP,
-                                         socket.TCP_KEEPIDLE), keepidle)
-        self.assertEqual(sock.getsockopt(socket.SOL_TCP,
-                                         socket.TCP_KEEPINTVL), keepintvl)
-
-        sock = server.socket('localhost',
-                             tcp_keepalive=False,
-                             tcp_keepcnt=keepcnt,
-                             tcp_keepidle=keepidle,
-                             tcp_keepintvl=keepintvl)
-
-        if hasattr(socket, 'TCP_KEEPCNT'):
-            self.assertNotEqual(sock.getsockopt(socket.SOL_TCP,
-                                                socket.TCP_KEEPCNT), keepcnt)
-        self.assertNotEqual(sock.getsockopt(socket.SOL_TCP,
-                                            socket.TCP_KEEPIDLE), keepidle)
-        self.assertNotEqual(sock.getsockopt(socket.SOL_TCP,
-                                            socket.TCP_KEEPINTVL), keepintvl)
-
-
 class HyBiEncodeDecodeTestCase(unittest.TestCase):
     def test_decode_hybi_text(self):
         buf = b'\x81\x85\x37\xfa\x21\x3d\x7f\x9f\x4d\x51\x58'
-        res = websocket.WebSocketRequestHandler.decode_hybi(buf)
+        ws = websocket.WebSocket()
+        res = ws._decode_hybi(buf)
 
         self.assertEqual(res['fin'], 1)
         self.assertEqual(res['opcode'], 0x1)
         self.assertEqual(res['masked'], True)
-        self.assertEqual(res['length'], 5)
+        self.assertEqual(res['length'], len(buf))
         self.assertEqual(res['payload'], b'Hello')
-        self.assertEqual(res['left'], 0)
 
     def test_decode_hybi_binary(self):
         buf = b'\x82\x04\x01\x02\x03\x04'
-        res = websocket.WebSocketRequestHandler.decode_hybi(buf, strict=False)
+        ws = websocket.WebSocket()
+        res = ws._decode_hybi(buf)
 
         self.assertEqual(res['fin'], 1)
         self.assertEqual(res['opcode'], 0x2)
-        self.assertEqual(res['length'], 4)
+        self.assertEqual(res['length'], len(buf))
         self.assertEqual(res['payload'], b'\x01\x02\x03\x04')
-        self.assertEqual(res['left'], 0)
 
     def test_decode_hybi_extended_16bit_binary(self):
         data = (b'\x01\x02\x03\x04' * 65)  # len > 126 -- len == 260
         buf = b'\x82\x7e\x01\x04' + data
-        res = websocket.WebSocketRequestHandler.decode_hybi(buf, strict=False)
+        ws = websocket.WebSocket()
+        res = ws._decode_hybi(buf)
 
         self.assertEqual(res['fin'], 1)
         self.assertEqual(res['opcode'], 0x2)
-        self.assertEqual(res['length'], 260)
+        self.assertEqual(res['length'], len(buf))
         self.assertEqual(res['payload'], data)
-        self.assertEqual(res['left'], 0)
 
     def test_decode_hybi_extended_64bit_binary(self):
         data = (b'\x01\x02\x03\x04' * 65)  # len > 126 -- len == 260
         buf = b'\x82\x7f\x00\x00\x00\x00\x00\x00\x01\x04' + data
-        res = websocket.WebSocketRequestHandler.decode_hybi(buf, strict=False)
+        ws = websocket.WebSocket()
+        res = ws._decode_hybi(buf)
 
         self.assertEqual(res['fin'], 1)
         self.assertEqual(res['opcode'], 0x2)
-        self.assertEqual(res['length'], 260)
+        self.assertEqual(res['length'], len(buf))
         self.assertEqual(res['payload'], data)
-        self.assertEqual(res['left'], 0)
 
     def test_decode_hybi_multi(self):
         buf1 = b'\x01\x03\x48\x65\x6c'
         buf2 = b'\x80\x02\x6c\x6f'
 
-        res1 = websocket.WebSocketRequestHandler.decode_hybi(buf1, strict=False)
+        ws = websocket.WebSocket()
+
+        res1 = ws._decode_hybi(buf1)
         self.assertEqual(res1['fin'], 0)
         self.assertEqual(res1['opcode'], 0x1)
-        self.assertEqual(res1['length'], 3)
+        self.assertEqual(res1['length'], len(buf1))
         self.assertEqual(res1['payload'], b'Hel')
-        self.assertEqual(res1['left'], 0)
 
-        res2 = websocket.WebSocketRequestHandler.decode_hybi(buf2, strict=False)
+        res2 = ws._decode_hybi(buf2)
         self.assertEqual(res2['fin'], 1)
         self.assertEqual(res2['opcode'], 0x0)
-        self.assertEqual(res2['length'], 2)
+        self.assertEqual(res2['length'], len(buf2))
         self.assertEqual(res2['payload'], b'lo')
-        self.assertEqual(res2['left'], 0)
 
     def test_encode_hybi_basic(self):
-        res = websocket.WebSocketRequestHandler.encode_hybi(b'Hello', 0x1)
-        expected = (b'\x81\x05\x48\x65\x6c\x6c\x6f', 2, 0)
+        ws = websocket.WebSocket()
+        res = ws._encode_hybi(0x1, b'Hello')
+        expected = b'\x81\x05\x48\x65\x6c\x6c\x6f'
 
         self.assertEqual(res, expected)
-
-    def test_strict_mode_refuses_unmasked_client_frames(self):
-        buf = b'\x81\x05\x48\x65\x6c\x6c\x6f'
-        self.assertRaises(websocket.WebSocketRequestHandler.CClose,
-                          websocket.WebSocketRequestHandler.decode_hybi,
-                          buf)
-
-    def test_no_strict_mode_accepts_unmasked_client_frames(self):
-        buf = b'\x81\x05\x48\x65\x6c\x6c\x6f'
-        res = websocket.WebSocketRequestHandler.decode_hybi(buf, strict=False)
-
-        self.assertEqual(res['fin'], 1)
-        self.assertEqual(res['opcode'], 0x1)
-        self.assertEqual(res['masked'], False)
-        self.assertEqual(res['length'], 5)
-        self.assertEqual(res['payload'], b'Hello')
diff --git a/tests/test_websocketproxy.py b/tests/test_websocketproxy.py
index b48796e..ac08dfa 100644
--- a/tests/test_websocketproxy.py
+++ b/tests/test_websocketproxy.py
@@ -22,7 +22,7 @@ import socket
 
 from mox3 import stubout
 
-from websockify import websocket
+from websockify import websocketserver
 from websockify import websocketproxy
 from websockify import token_plugins
 from websockify import auth_plugins
@@ -75,7 +75,7 @@ class ProxyRequestHandlerTestCase(unittest.TestCase):
             FakeSocket(''), "127.0.0.1", FakeServer())
         self.handler.path = "https://localhost:6080/websockify?token=blah"
         self.handler.headers = None
-        self.stubs.Set(websocket.WebSocketServer, 'socket',
+        self.stubs.Set(websocketserver.WebSocketServer, 'socket',
                        staticmethod(lambda *args, **kwargs: None))
 
     def tearDown(self):
diff --git a/tests/test_websocketserver.py b/tests/test_websocketserver.py
new file mode 100644
index 0000000..aaeeee6
--- /dev/null
+++ b/tests/test_websocketserver.py
@@ -0,0 +1,347 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright(c)2013 NTT corp. All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+""" Unit tests for websocketserver """
+import errno
+import os
+import logging
+import select
+import shutil
+import socket
+import ssl
+from mox3 import stubout
+import sys
+import tempfile
+import unittest
+import socket
+import signal
+from websockify import websocketserver
+
+try:
+    from SimpleHTTPServer import SimpleHTTPRequestHandler
+except ImportError:
+    from http.server import SimpleHTTPRequestHandler
+
+try:
+    from StringIO import StringIO
+    BytesIO = StringIO
+except ImportError:
+    from io import StringIO
+    from io import BytesIO
+
+
+
+
+def raise_oserror(*args, **kwargs):
+    raise OSError('fake error')
+
+
+class FakeSocket(object):
+    def __init__(self, data=''):
+        if isinstance(data, bytes):
+            self._data = data
+        else:
+            self._data = data.encode('latin_1')
+
+    def recv(self, amt, flags=None):
+        res = self._data[0:amt]
+        if not (flags & socket.MSG_PEEK):
+            self._data = self._data[amt:]
+
+        return res
+
+    def makefile(self, mode='r', buffsize=None):
+        if 'b' in mode:
+            return BytesIO(self._data)
+        else:
+            return StringIO(self._data.decode('latin_1'))
+
+
+class WebSocketRequestHandlerTestCase(unittest.TestCase):
+    def setUp(self):
+        super(WebSocketRequestHandlerTestCase, self).setUp()
+        self.stubs = stubout.StubOutForTesting()
+        self.tmpdir = tempfile.mkdtemp('-websockify-tests')
+        # Mock this out cause it screws tests up
+        self.stubs.Set(os, 'chdir', lambda *args, **kwargs: None)
+        self.stubs.Set(SimpleHTTPRequestHandler, 'send_response',
+                       lambda *args, **kwargs: None)
+
+    def tearDown(self):
+        """Called automatically after each test."""
+        self.stubs.UnsetAll()
+        os.rmdir(self.tmpdir)
+        super(WebSocketRequestHandlerTestCase, self).tearDown()
+
+    def _get_server(self, handler_class=websocketserver.WebSocketRequestHandler,
+                    **kwargs):
+        web = kwargs.pop('web', self.tmpdir)
+        return websocketserver.WebSocketServer(
+            handler_class, listen_host='localhost',
+            listen_port=80, key=self.tmpdir, web=web,
+            record=self.tmpdir, daemon=False, ssl_only=0, idle_timeout=1,
+            **kwargs)
+
+    def test_normal_get_with_only_upgrade_returns_error(self):
+        server = self._get_server(web=None)
+        handler = websocketserver.WebSocketRequestHandler(
+            FakeSocket('GET /tmp.txt HTTP/1.1'), '127.0.0.1', server)
+
+        def fake_send_response(self, code, message=None):
+            self.last_code = code
+
+        self.stubs.Set(SimpleHTTPRequestHandler, 'send_response',
+                       fake_send_response)
+
+        handler.do_GET()
+        self.assertEqual(handler.last_code, 405)
+
+    def test_list_dir_with_file_only_returns_error(self):
+        server = self._get_server(file_only=True)
+        handler = websocketserver.WebSocketRequestHandler(
+            FakeSocket('GET / HTTP/1.1'), '127.0.0.1', server)
+
+        def fake_send_response(self, code, message=None):
+            self.last_code = code
+
+        self.stubs.Set(SimpleHTTPRequestHandler, 'send_response',
+                       fake_send_response)
+
+        handler.path = '/'
+        handler.do_GET()
+        self.assertEqual(handler.last_code, 404)
+
+
+class WebSocketServerTestCase(unittest.TestCase):
+    def setUp(self):
+        super(WebSocketServerTestCase, self).setUp()
+        self.stubs = stubout.StubOutForTesting()
+        self.tmpdir = tempfile.mkdtemp('-websockify-tests')
+        # Mock this out cause it screws tests up
+        self.stubs.Set(os, 'chdir', lambda *args, **kwargs: None)
+
+    def tearDown(self):
+        """Called automatically after each test."""
+        self.stubs.UnsetAll()
+        os.rmdir(self.tmpdir)
+        super(WebSocketServerTestCase, self).tearDown()
+
+    def _get_server(self, handler_class=websocketserver.WebSocketRequestHandler,
+                    **kwargs):
+        return websocketserver.WebSocketServer(
+            handler_class, listen_host='localhost',
+            listen_port=80, key=self.tmpdir, web=self.tmpdir,
+            record=self.tmpdir, **kwargs)
+
+    def test_daemonize_raises_error_while_closing_fds(self):
+        server = self._get_server(daemon=True, ssl_only=1, idle_timeout=1)
+        self.stubs.Set(os, 'fork', lambda *args: 0)
+        self.stubs.Set(signal, 'signal', lambda *args: None)
+        self.stubs.Set(os, 'setsid', lambda *args: None)
+        self.stubs.Set(os, 'close', raise_oserror)
+        self.assertRaises(OSError, server.daemonize, keepfd=None, chdir='./')
+
+    def test_daemonize_ignores_ebadf_error_while_closing_fds(self):
+        def raise_oserror_ebadf(fd):
+            raise OSError(errno.EBADF, 'fake error')
+
+        server = self._get_server(daemon=True, ssl_only=1, idle_timeout=1)
+        self.stubs.Set(os, 'fork', lambda *args: 0)
+        self.stubs.Set(os, 'setsid', lambda *args: None)
+        self.stubs.Set(signal, 'signal', lambda *args: None)
+        self.stubs.Set(os, 'close', raise_oserror_ebadf)
+        self.stubs.Set(os, 'open', raise_oserror)
+        self.assertRaises(OSError, server.daemonize, keepfd=None, chdir='./')
+
+    def test_handshake_fails_on_not_ready(self):
+        server = self._get_server(daemon=True, ssl_only=0, idle_timeout=1)
+
+        def fake_select(rlist, wlist, xlist, timeout=None):
+            return ([], [], [])
+
+        self.stubs.Set(select, 'select', fake_select)
+        self.assertRaises(
+            websocketserver.WebSocketServer.EClose, server.do_handshake,
+            FakeSocket(), '127.0.0.1')
+
+    def test_empty_handshake_fails(self):
+        server = self._get_server(daemon=True, ssl_only=0, idle_timeout=1)
+
+        sock = FakeSocket('')
+
+        def fake_select(rlist, wlist, xlist, timeout=None):
+            return ([sock], [], [])
+
+        self.stubs.Set(select, 'select', fake_select)
+        self.assertRaises(
+            websocketserver.WebSocketServer.EClose, server.do_handshake,
+            sock, '127.0.0.1')
+
+    def test_handshake_policy_request(self):
+        # TODO(directxman12): implement
+        pass
+
+    def test_handshake_ssl_only_without_ssl_raises_error(self):
+        server = self._get_server(daemon=True, ssl_only=1, idle_timeout=1)
+
+        sock = FakeSocket('some initial data')
+
+        def fake_select(rlist, wlist, xlist, timeout=None):
+            return ([sock], [], [])
+
+        self.stubs.Set(select, 'select', fake_select)
+        self.assertRaises(
+            websocketserver.WebSocketServer.EClose, server.do_handshake,
+            sock, '127.0.0.1')
+
+    def test_do_handshake_no_ssl(self):
+        class FakeHandler(object):
+            CALLED = False
+            def __init__(self, *args, **kwargs):
+                type(self).CALLED = True
+
+        FakeHandler.CALLED = False
+
+        server = self._get_server(
+            handler_class=FakeHandler, daemon=True,
+            ssl_only=0, idle_timeout=1)
+
+        sock = FakeSocket('some initial data')
+
+        def fake_select(rlist, wlist, xlist, timeout=None):
+            return ([sock], [], [])
+
+        self.stubs.Set(select, 'select', fake_select)
+        self.assertEqual(server.do_handshake(sock, '127.0.0.1'), sock)
+        self.assertTrue(FakeHandler.CALLED, True)
+
+    def test_do_handshake_ssl(self):
+        # TODO(directxman12): implement this
+        pass
+
+    def test_do_handshake_ssl_without_ssl_raises_error(self):
+        # TODO(directxman12): implement this
+        pass
+
+    def test_do_handshake_ssl_without_cert_raises_error(self):
+        server = self._get_server(daemon=True, ssl_only=0, idle_timeout=1,
+                                  cert='afdsfasdafdsafdsafdsafdas')
+
+        sock = FakeSocket("\x16some ssl data")
+
+        def fake_select(rlist, wlist, xlist, timeout=None):
+            return ([sock], [], [])
+
+        self.stubs.Set(select, 'select', fake_select)
+        self.assertRaises(
+            websocketserver.WebSocketServer.EClose, server.do_handshake,
+            sock, '127.0.0.1')
+
+    def test_do_handshake_ssl_error_eof_raises_close_error(self):
+        server = self._get_server(daemon=True, ssl_only=0, idle_timeout=1)
+
+        sock = FakeSocket("\x16some ssl data")
+
+        def fake_select(rlist, wlist, xlist, timeout=None):
+            return ([sock], [], [])
+
+        def fake_wrap_socket(*args, **kwargs):
+            raise ssl.SSLError(ssl.SSL_ERROR_EOF)
+
+        self.stubs.Set(select, 'select', fake_select)
+        self.stubs.Set(ssl, 'wrap_socket', fake_wrap_socket)
+        self.assertRaises(
+            websocketserver.WebSocketServer.EClose, server.do_handshake,
+            sock, '127.0.0.1')
+
+    def test_fallback_sigchld_handler(self):
+        # TODO(directxman12): implement this
+        pass
+
+    def test_start_server_error(self):
+        server = self._get_server(daemon=False, ssl_only=1, idle_timeout=1)
+        sock = server.socket('localhost')
+
+        def fake_select(rlist, wlist, xlist, timeout=None):
+            raise Exception("fake error")
+
+        self.stubs.Set(websocketserver.WebSocketServer, 'socket',
+                       lambda *args, **kwargs: sock)
+        self.stubs.Set(websocketserver.WebSocketServer, 'daemonize',
+                       lambda *args, **kwargs: None)
+        self.stubs.Set(select, 'select', fake_select)
+        server.start_server()
+
+    def test_start_server_keyboardinterrupt(self):
+        server = self._get_server(daemon=False, ssl_only=0, idle_timeout=1)
+        sock = server.socket('localhost')
+
+        def fake_select(rlist, wlist, xlist, timeout=None):
+            raise KeyboardInterrupt
+
+        self.stubs.Set(websocketserver.WebSocketServer, 'socket',
+                       lambda *args, **kwargs: sock)
+        self.stubs.Set(websocketserver.WebSocketServer, 'daemonize',
+                       lambda *args, **kwargs: None)
+        self.stubs.Set(select, 'select', fake_select)
+        server.start_server()
+
+    def test_start_server_systemexit(self):
+        server = self._get_server(daemon=False, ssl_only=0, idle_timeout=1)
+        sock = server.socket('localhost')
+
+        def fake_select(rlist, wlist, xlist, timeout=None):
+            sys.exit()
+
+        self.stubs.Set(websocketserver.WebSocketServer, 'socket',
+                       lambda *args, **kwargs: sock)
+        self.stubs.Set(websocketserver.WebSocketServer, 'daemonize',
+                       lambda *args, **kwargs: None)
+        self.stubs.Set(select, 'select', fake_select)
+        server.start_server()
+
+    def test_socket_set_keepalive_options(self):
+        keepcnt = 12
+        keepidle = 34
+        keepintvl = 56
+
+        server = self._get_server(daemon=False, ssl_only=0, idle_timeout=1)
+        sock = server.socket('localhost',
+                             tcp_keepcnt=keepcnt,
+                             tcp_keepidle=keepidle,
+                             tcp_keepintvl=keepintvl)
+
+        if hasattr(socket, 'TCP_KEEPCNT'):
+            self.assertEqual(sock.getsockopt(socket.SOL_TCP,
+                                             socket.TCP_KEEPCNT), keepcnt)
+        self.assertEqual(sock.getsockopt(socket.SOL_TCP,
+                                         socket.TCP_KEEPIDLE), keepidle)
+        self.assertEqual(sock.getsockopt(socket.SOL_TCP,
+                                         socket.TCP_KEEPINTVL), keepintvl)
+
+        sock = server.socket('localhost',
+                             tcp_keepalive=False,
+                             tcp_keepcnt=keepcnt,
+                             tcp_keepidle=keepidle,
+                             tcp_keepintvl=keepintvl)
+
+        if hasattr(socket, 'TCP_KEEPCNT'):
+            self.assertNotEqual(sock.getsockopt(socket.SOL_TCP,
+                                                socket.TCP_KEEPCNT), keepcnt)
+        self.assertNotEqual(sock.getsockopt(socket.SOL_TCP,
+                                            socket.TCP_KEEPIDLE), keepidle)
+        self.assertNotEqual(sock.getsockopt(socket.SOL_TCP,
+                                            socket.TCP_KEEPINTVL), keepintvl)