mitmproxy/test/test_flow.py

import Queue, time, os.path
from cStringIO import StringIO
import email.utils
import mock
from libmproxy import filt, protocol, controller, utils, tnetstring, flow
from libmproxy.protocol.primitives import Error, Flow
from libmproxy.protocol.http import decoded, CONTENT_MISSING
from libmproxy.proxy.connection import ClientConnection, ServerConnection
from netlib import tcp
import tutils


def test_app_registry():
    ar = flow.AppRegistry()
    ar.add("foo", "domain", 80)

    r = tutils.treq()
    r.host = "domain"
    r.port = 80
    assert ar.get(r)

    r.port = 81
    assert not ar.get(r)

    r = tutils.treq()
    r.host = "domain2"
    r.port = 80
    assert not ar.get(r)
    r.headers["host"] = ["domain"]
    assert ar.get(r)



class TestStickyCookieState:
    def _response(self, cookie, host):
        s = flow.StickyCookieState(filt.parse(".*"))
        f = tutils.tflow(req=tutils.treq(host=host, port=80), resp=True)
        f.response.headers["Set-Cookie"] = [cookie]
        s.handle_response(f)
        return s, f

    def test_domain_match(self):
        s = flow.StickyCookieState(filt.parse(".*"))
        assert s.domain_match("www.google.com", ".google.com")
        assert s.domain_match("google.com", ".google.com")

    def test_handle_response(self):
        c = "SSID=mooo, FOO=bar; Domain=.google.com; Path=/; "\
            "Expires=Wed, 13-Jan-2021 22:23:01 GMT; Secure; "

        s, f = self._response(c, "host")
        assert not s.jar.keys()

        s, f = self._response(c, "www.google.com")
        assert s.jar.keys()

        s, f = self._response("SSID=mooo", "www.google.com")
        assert s.jar.keys()[0] == ('www.google.com', 80, '/')

    def test_handle_request(self):
        s, f = self._response("SSID=mooo", "www.google.com")
        assert "cookie" not in f.request.headers
        s.handle_request(f)
        assert "cookie" in f.request.headers


class TestStickyAuthState:
    def test_handle_response(self):
        s = flow.StickyAuthState(filt.parse(".*"))
        f = tutils.tflow(resp=True)
        f.request.headers["authorization"] = ["foo"]
        s.handle_request(f)
        assert "address" in s.hosts

        f = tutils.tflow(resp=True)
        s.handle_request(f)
        assert f.request.headers["authorization"] == ["foo"]


class TestClientPlaybackState:
    def test_tick(self):
        first = tutils.tflow()
        s = flow.State()
        fm = flow.FlowMaster(None, s)
        fm.start_client_playback([first, tutils.tflow()], True)
        c = fm.client_playback

        assert not c.done()
        assert not s.flow_count()
        assert c.count() == 2
        c.tick(fm, testing=True)
        assert s.flow_count()
        assert c.count() == 1

        c.tick(fm, testing=True)
        assert c.count() == 1

        c.clear(c.current)
        c.tick(fm, testing=True)
        assert c.count() == 0
        c.clear(c.current)
        assert c.done()

        q = Queue.Queue()
        fm.state.clear()
        fm.tick(q, timeout=0)

        fm.stop_client_playback()
        assert not fm.client_playback


class TestServerPlaybackState:
    def test_hash(self):
        s = flow.ServerPlaybackState(None, [], False, False)
        r = tutils.tflow()
        r2 = tutils.tflow()

        assert s._hash(r)
        assert s._hash(r) == s._hash(r2)
        r.request.headers["foo"] = ["bar"]
        assert s._hash(r) == s._hash(r2)
        r.request.path = "voing"
        assert s._hash(r) != s._hash(r2)

    def test_headers(self):
        s = flow.ServerPlaybackState(["foo"], [], False, False)
        r = tutils.tflow(resp=True)
        r.request.headers["foo"] = ["bar"]
        r2 = tutils.tflow(resp=True)
        assert not s._hash(r) == s._hash(r2)
        r2.request.headers["foo"] = ["bar"]
        assert s._hash(r) == s._hash(r2)
        r2.request.headers["oink"] = ["bar"]
        assert s._hash(r) == s._hash(r2)

        r = tutils.tflow(resp=True)
        r2 = tutils.tflow(resp=True)
        assert s._hash(r) == s._hash(r2)

    def test_load(self):
        r = tutils.tflow(resp=True)
        r.request.headers["key"] = ["one"]

        r2 = tutils.tflow(resp=True)
        r2.request.headers["key"] = ["two"]

        s = flow.ServerPlaybackState(None, [r, r2], False, False)
        assert s.count() == 2
        assert len(s.fmap.keys()) == 1

        n = s.next_flow(r)
        assert n.request.headers["key"] == ["one"]
        assert s.count() == 1

        n = s.next_flow(r)
        assert n.request.headers["key"] == ["two"]
        assert s.count() == 0

        assert not s.next_flow(r)

    def test_load_with_nopop(self):
        r = tutils.tflow(resp=True)
        r.request.headers["key"] = ["one"]

        r2 = tutils.tflow(resp=True)
        r2.request.headers["key"] = ["two"]

        s = flow.ServerPlaybackState(None, [r, r2], False, True)

        assert s.count() == 2
        s.next_flow(r)
        assert s.count() == 2


class TestFlow:
    def test_copy(self):
        f = tutils.tflow(resp=True)
        a0 = f.get_state()
        f2 = f.copy()
        a = f.get_state()
        b = f2.get_state()
        assert f.get_state() == f2.get_state()
        assert not f == f2
        assert not f is f2
        assert f.request.get_state() == f2.request.get_state()
        assert not f.request is f2.request
        assert f.request.headers == f2.request.headers
        assert not f.request.headers is f2.request.headers
        assert f.response.get_state() == f2.response.get_state()
        assert not f.response is f2.response

        f = tutils.tflow(err=True)
        f2 = f.copy()
        assert not f is f2
        assert not f.request is f2.request
        assert f.request.headers == f2.request.headers
        assert not f.request.headers is f2.request.headers
        assert f.error.get_state() == f2.error.get_state()
        assert not f.error is f2.error

    def test_match(self):
        f = tutils.tflow(resp=True)
        assert not f.match("~b test")
        assert f.match(None)
        assert not f.match("~b test")

        f = tutils.tflow(err=True)
        assert f.match("~e")

        tutils.raises(ValueError, f.match, "~")

    def test_backup(self):
        f = tutils.tflow()
        f.response = tutils.tresp()
        f.request.content = "foo"
        assert not f.modified()
        f.backup()
        f.request.content = "bar"
        assert f.modified()
        f.revert()
        assert f.request.content == "foo"

    def test_backup_idempotence(self):
        f = tutils.tflow(resp=True)
        f.backup()
        f.revert()
        f.backup()
        f.revert()

    def test_getset_state(self):
        f = tutils.tflow(resp=True)
        state = f.get_state()
        assert f.get_state() == protocol.http.HTTPFlow.from_state(state).get_state()

        f.response = None
        f.error = Error("error")
        state = f.get_state()
        assert f.get_state() == protocol.http.HTTPFlow.from_state(state).get_state()

        f2 = f.copy()
        assert f.get_state() == f2.get_state()
        assert not f == f2
        f2.error = Error("e2")
        assert not f == f2
        f.load_state(f2.get_state())
        assert f.get_state() == f2.get_state()

    def test_kill(self):
        s = flow.State()
        fm = flow.FlowMaster(None, s)
        f = tutils.tflow()
        f.intercept()
        assert not f.reply.acked
        f.kill(fm)
        assert f.reply.acked

    def test_killall(self):
        s = flow.State()
        fm = flow.FlowMaster(None, s)

        f = tutils.tflow()
        fm.handle_request(f)

        f = tutils.tflow()
        fm.handle_request(f)

        for i in s.view:
            assert not i.reply.acked
        s.killall(fm)
        for i in s.view:
            assert i.reply.acked

    def test_accept_intercept(self):
        f = tutils.tflow()

        f.intercept()
        assert not f.reply.acked
        f.accept_intercept()
        assert f.reply.acked

    def test_replace_unicode(self):
        f = tutils.tflow(resp=True)
        f.response.content = "\xc2foo"
        f.replace("foo", u"bar")

    def test_replace(self):
        f = tutils.tflow(resp=True)
        f.request.headers["foo"] = ["foo"]
        f.request.content = "afoob"

        f.response.headers["foo"] = ["foo"]
        f.response.content = "afoob"

        assert f.replace("foo", "bar") == 6

        assert f.request.headers["bar"] == ["bar"]
        assert f.request.content == "abarb"
        assert f.response.headers["bar"] == ["bar"]
        assert f.response.content == "abarb"

    def test_replace_encoded(self):
        f = tutils.tflow(resp=True)
        f.request.content = "afoob"
        f.request.encode("gzip")
        f.response.content = "afoob"
        f.response.encode("gzip")

        f.replace("foo", "bar")

        assert f.request.content != "abarb"
        f.request.decode()
        assert f.request.content == "abarb"

        assert f.response.content != "abarb"
        f.response.decode()
        assert f.response.content == "abarb"



class TestState:
    def test_backup(self):
        c = flow.State()
        f = tutils.tflow()
        c.add_request(f)
        f.backup()
        c.revert(f)

    def test_flow(self):
        """
            normal flow:

                connect -> request -> response
        """
        c = flow.State()
        f = tutils.tflow()
        c.add_request(f)
        assert f
        assert c.flow_count() == 1
        assert c.active_flow_count() == 1

        newf = tutils.tflow()
        assert c.add_request(newf)
        assert c.active_flow_count() == 2

        f.response = tutils.tresp()
        assert c.add_response(f)
        assert c.flow_count() == 2
        assert c.active_flow_count() == 1

        _ = tutils.tresp()
        assert not c.add_response(None)
        assert c.active_flow_count() == 1

        newf.response = tutils.tresp()
        assert c.add_response(newf)
        assert c.active_flow_count() == 0

    def test_err(self):
        c = flow.State()
        f = tutils.tflow()
        c.add_request(f)
        f.error = Error("message")
        assert c.add_error(f)

        c = flow.State()
        f = tutils.tflow()
        c.add_request(f)
        c.set_limit("~e")
        assert not c.view
        f.error = tutils.terr()
        assert c.add_error(f)
        assert c.view

    def test_set_limit(self):
        c = flow.State()

        f = tutils.tflow()
        assert len(c.view) == 0

        c.add_request(f)
        assert len(c.view) == 1

        c.set_limit("~s")
        assert c.limit_txt == "~s"
        assert len(c.view) == 0
        f.response = tutils.tresp()
        c.add_response(f)
        assert len(c.view) == 1
        c.set_limit(None)
        assert len(c.view) == 1

        f = tutils.tflow()
        c.add_request(f)
        assert len(c.view) == 2
        c.set_limit("~q")
        assert len(c.view) == 1
        c.set_limit("~s")
        assert len(c.view) == 1

        assert "Invalid" in c.set_limit("~")

    def test_set_intercept(self):
        c = flow.State()
        assert not c.set_intercept("~q")
        assert c.intercept_txt == "~q"
        assert "Invalid" in c.set_intercept("~")
        assert not c.set_intercept(None)
        assert c.intercept_txt == None

    def _add_request(self, state):
        f = tutils.tflow()
        state.add_request(f)
        return f

    def _add_response(self, state):
        f = tutils.tflow()
        state.add_request(f)
        f.response = tutils.tresp()
        state.add_response(f)

    def _add_error(self, state):
        f = tutils.tflow(err=True)
        state.add_request(f)

    def test_clear(self):
        c = flow.State()
        f = self._add_request(c)
        f.intercepting = True

        c.clear()
        assert c.flow_count() == 0

    def test_dump_flows(self):
        c = flow.State()
        self._add_request(c)
        self._add_response(c)
        self._add_request(c)
        self._add_response(c)
        self._add_request(c)
        self._add_response(c)
        self._add_error(c)

        flows = c.view[:]
        c.clear()

        c.load_flows(flows)
        assert isinstance(c._flow_list[0], Flow)

    def test_accept_all(self):
        c = flow.State()
        self._add_request(c)
        self._add_response(c)
        self._add_request(c)
        c.accept_all()


class TestSerialize:
    def _treader(self):
        sio = StringIO()
        w = flow.FlowWriter(sio)
        for i in range(3):
            f = tutils.tflow(resp=True)
            w.add(f)
        for i in range(3):
            f = tutils.tflow(err=True)
            w.add(f)

        sio.seek(0)
        return flow.FlowReader(sio)

    def test_roundtrip(self):
        sio = StringIO()
        f = tutils.tflow()
        f.request.content = "".join(chr(i) for i in range(255))
        w = flow.FlowWriter(sio)
        w.add(f)

        sio.seek(0)
        r = flow.FlowReader(sio)
        l = list(r.stream())
        assert len(l) == 1

        f2 = l[0]
        assert f2.get_state() == f.get_state()
        assert f2.request.assemble() == f.request.assemble()

    def test_load_flows(self):
        r = self._treader()
        s = flow.State()
        fm = flow.FlowMaster(None, s)
        fm.load_flows(r)
        assert len(s._flow_list) == 6

    def test_filter(self):
        sio = StringIO()
        fl = filt.parse("~c 200")
        w = flow.FilteredFlowWriter(sio, fl)

        f = tutils.tflow(resp=True)
        f.response.code = 200
        w.add(f)

        f = tutils.tflow(resp=True)
        f.response.code = 201
        w.add(f)

        sio.seek(0)
        r = flow.FlowReader(sio)
        assert len(list(r.stream()))


    def test_error(self):
        sio = StringIO()
        sio.write("bogus")
        sio.seek(0)
        r = flow.FlowReader(sio)
        tutils.raises(flow.FlowReadError, list, r.stream())

        f = flow.FlowReadError("foo")
        assert f.strerror == "foo"

    def test_versioncheck(self):
        f = tutils.tflow()
        d = f.get_state()
        d["version"] = (0, 0)
        sio = StringIO()
        tnetstring.dump(d, sio)
        sio.seek(0)

        r = flow.FlowReader(sio)
        tutils.raises("version", list, r.stream())


class TestFlowMaster:
    def test_load_script(self):
        s = flow.State()
        fm = flow.FlowMaster(None, s)
        assert not fm.load_script(tutils.test_data.path("scripts/a.py"))
        assert not fm.load_script(tutils.test_data.path("scripts/a.py"))
        assert not fm.unload_scripts()
        assert fm.load_script("nonexistent")
        assert "ValueError" in fm.load_script(tutils.test_data.path("scripts/starterr.py"))
        assert len(fm.scripts) == 0

    def test_getset_ignore(self):
        p = mock.Mock()
        p.config.ignore = []
        fm = flow.FlowMaster(p, flow.State())
        assert not fm.get_ignore()
        fm.set_ignore(["^apple\.com:", ":443$"])
        assert fm.get_ignore()

    def test_replay(self):
        s = flow.State()
        fm = flow.FlowMaster(None, s)
        f = tutils.tflow(resp=True)
        f.request.content = CONTENT_MISSING
        assert "missing" in fm.replay_request(f)

        f.intercepting = True
        assert "intercepting" in fm.replay_request(f)

    def test_script_reqerr(self):
        s = flow.State()
        fm = flow.FlowMaster(None, s)
        assert not fm.load_script(tutils.test_data.path("scripts/reqerr.py"))
        f = tutils.tflow()
        fm.handle_clientconnect(f.client_conn)
        assert fm.handle_request(f)

    def test_script(self):
        s = flow.State()
        fm = flow.FlowMaster(None, s)
        assert not fm.load_script(tutils.test_data.path("scripts/all.py"))
        f = tutils.tflow(resp=True)

        fm.handle_clientconnect(f.client_conn)
        assert fm.scripts[0].ns["log"][-1] == "clientconnect"
        fm.handle_serverconnect(f.server_conn)
        assert fm.scripts[0].ns["log"][-1] == "serverconnect"
        fm.handle_request(f)
        assert fm.scripts[0].ns["log"][-1] == "request"
        fm.handle_response(f)
        assert fm.scripts[0].ns["log"][-1] == "response"
        #load second script
        assert not fm.load_script(tutils.test_data.path("scripts/all.py"))
        assert len(fm.scripts) == 2
        fm.handle_clientdisconnect(f.server_conn)
        assert fm.scripts[0].ns["log"][-1] == "clientdisconnect"
        assert fm.scripts[1].ns["log"][-1] == "clientdisconnect"

        #unload first script
        fm.unload_scripts()
        assert len(fm.scripts) == 0
        assert not fm.load_script(tutils.test_data.path("scripts/all.py"))

        f.error = tutils.terr()
        fm.handle_error(f)
        assert fm.scripts[0].ns["log"][-1] == "error"

    def test_duplicate_flow(self):
        s = flow.State()
        fm = flow.FlowMaster(None, s)
        f = tutils.tflow(resp=True)
        f = fm.load_flow(f)
        assert s.flow_count() == 1
        f2 = fm.duplicate_flow(f)
        assert f2.response
        assert s.flow_count() == 2
        assert s.index(f2) == 1

    def test_all(self):
        s = flow.State()
        fm = flow.FlowMaster(None, s)
        fm.anticache = True
        fm.anticomp = True
        f = tutils.tflow(req=None)
        fm.handle_clientconnect(f.client_conn)
        f.request = tutils.treq()
        fm.handle_request(f)
        assert s.flow_count() == 1

        f.response = tutils.tresp()
        fm.handle_response(f)
        assert not fm.handle_response(None)
        assert s.flow_count() == 1

        fm.handle_clientdisconnect(f.client_conn)

        f.error = Error("msg")
        f.error.reply = controller.DummyReply()
        fm.handle_error(f)

        fm.load_script(tutils.test_data.path("scripts/a.py"))
        fm.shutdown()

    def test_client_playback(self):
        s = flow.State()

        f = tutils.tflow(resp=True)
        pb = [tutils.tflow(resp=True), f]
        fm = flow.FlowMaster(None, s)
        assert not fm.start_server_playback(pb, False, [], False, False)
        assert not fm.start_client_playback(pb, False)

        q = Queue.Queue()
        assert not fm.state.flow_count()
        fm.tick(q, 0)
        assert fm.state.flow_count()

        f.error = Error("error")
        fm.handle_error(f)

    def test_server_playback(self):
        s = flow.State()

        f = tutils.tflow()
        f.response = tutils.tresp(f.request)
        pb = [f]

        fm = flow.FlowMaster(None, s)
        fm.refresh_server_playback = True
        assert not fm.do_server_playback(tutils.tflow())

        fm.start_server_playback(pb, False, [], False, False)
        assert fm.do_server_playback(tutils.tflow())

        fm.start_server_playback(pb, False, [], True, False)
        r = tutils.tflow()
        r.request.content = "gibble"
        assert not fm.do_server_playback(r)
        assert fm.do_server_playback(tutils.tflow())

        fm.start_server_playback(pb, False, [], True, False)
        q = Queue.Queue()
        fm.tick(q, 0)
        assert fm.should_exit.is_set()

        fm.stop_server_playback()
        assert not fm.server_playback

    def test_server_playback_kill(self):
        s = flow.State()
        f = tutils.tflow()
        f.response = tutils.tresp(f.request)
        pb = [f]
        fm = flow.FlowMaster(None, s)
        fm.refresh_server_playback = True
        fm.start_server_playback(pb, True, [], False, False)

        f = tutils.tflow()
        f.request.host = "nonexistent"
        fm.process_new_request(f)
        assert "killed" in f.error.msg

    def test_stickycookie(self):
        s = flow.State()
        fm = flow.FlowMaster(None, s)
        assert "Invalid" in fm.set_stickycookie("~h")
        fm.set_stickycookie(".*")
        assert fm.stickycookie_state
        fm.set_stickycookie(None)
        assert not fm.stickycookie_state

        fm.set_stickycookie(".*")
        f = tutils.tflow(resp=True)
        f.response.headers["set-cookie"] = ["foo=bar"]
        fm.handle_request(f)
        fm.handle_response(f)
        assert fm.stickycookie_state.jar
        assert not "cookie" in f.request.headers
        f = f.copy()
        fm.handle_request(f)
        assert f.request.headers["cookie"] == ["foo=bar"]

    def test_stickyauth(self):
        s = flow.State()
        fm = flow.FlowMaster(None, s)
        assert "Invalid" in fm.set_stickyauth("~h")
        fm.set_stickyauth(".*")
        assert fm.stickyauth_state
        fm.set_stickyauth(None)
        assert not fm.stickyauth_state

        fm.set_stickyauth(".*")
        f = tutils.tflow(resp=True)
        f.request.headers["authorization"] = ["foo"]
        fm.handle_request(f)

        f = tutils.tflow(resp=True)
        assert fm.stickyauth_state.hosts
        assert not "authorization" in f.request.headers
        fm.handle_request(f)
        assert f.request.headers["authorization"] == ["foo"]

    def test_stream(self):
        with tutils.tmpdir() as tdir:
            p = os.path.join(tdir, "foo")
            def r():
                r = flow.FlowReader(open(p,"rb"))
                return list(r.stream())

            s = flow.State()
            fm = flow.FlowMaster(None, s)
            f = tutils.tflow(resp=True)

            fm.start_stream(file(p, "ab"), None)
            fm.handle_request(f)
            fm.handle_response(f)
            fm.stop_stream()

            assert r()[0].response

            f = tutils.tflow()
            fm.start_stream(file(p, "ab"), None)
            fm.handle_request(f)
            fm.shutdown()

            assert not r()[1].response

class TestRequest:
    def test_simple(self):
        f = tutils.tflow()
        r = f.request
        u = r.url
        r.url = u
        tutils.raises(ValueError, setattr, r, "url", "")
        assert r.url == u
        assert r.assemble()
        assert r.size() == len(r.assemble())

        r2 = r.copy()
        assert r.get_state() == r2.get_state()

        r.content = None
        assert r.assemble()
        assert r.size() == len(r.assemble())

        r.content = CONTENT_MISSING
        tutils.raises("Cannot assemble flow with CONTENT_MISSING", r.assemble)

    def test_get_url(self):
        r = tutils.treq()

        assert r.url == "http://address:22/path"

        r.scheme = "https"
        assert r.url == "https://address:22/path"

        r.host = "host"
        r.port = 42
        assert r.url == "https://host:42/path"

        r.host = "address"
        r.port = 22
        assert r.url== "https://address:22/path"

        assert r.pretty_url(True) == "https://address:22/path"
        r.headers["Host"] = ["foo.com"]
        assert r.pretty_url(False) == "https://address:22/path"
        assert r.pretty_url(True) == "https://foo.com:22/path"

    def test_path_components(self):
        r = tutils.treq()
        r.path = "/"
        assert r.get_path_components() == []
        r.path = "/foo/bar"
        assert r.get_path_components() == ["foo", "bar"]
        q = flow.ODict()
        q["test"] = ["123"]
        r.set_query(q)
        assert r.get_path_components() == ["foo", "bar"]

        r.set_path_components([])
        assert r.get_path_components() == []
        r.set_path_components(["foo"])
        assert r.get_path_components() == ["foo"]
        r.set_path_components(["/oo"])
        assert r.get_path_components() == ["/oo"]
        assert "%2F" in r.path

    def test_getset_form_urlencoded(self):
        d = flow.ODict([("one", "two"), ("three", "four")])
        r = tutils.treq(content=utils.urlencode(d.lst))
        r.headers["content-type"] = [protocol.http.HDR_FORM_URLENCODED]
        assert r.get_form_urlencoded() == d

        d = flow.ODict([("x", "y")])
        r.set_form_urlencoded(d)
        assert r.get_form_urlencoded() == d

        r.headers["content-type"] = ["foo"]
        assert not r.get_form_urlencoded()

    def test_getset_query(self):
        h = flow.ODictCaseless()

        r = tutils.treq()
        r.path = "/foo?x=y&a=b"
        q = r.get_query()
        assert q.lst == [("x", "y"), ("a", "b")]

        r.path = "/"
        q = r.get_query()
        assert not q

        r.path = "/?adsfa"
        q = r.get_query()
        assert q.lst == [("adsfa", "")]

        r.path = "/foo?x=y&a=b"
        assert r.get_query()
        r.set_query(flow.ODict([]))
        assert not r.get_query()
        qv = flow.ODict([("a", "b"), ("c", "d")])
        r.set_query(qv)
        assert r.get_query() == qv

    def test_anticache(self):
        h = flow.ODictCaseless()
        r = tutils.treq()
        r.headers = h
        h["if-modified-since"] = ["test"]
        h["if-none-match"] = ["test"]
        r.anticache()
        assert not "if-modified-since" in r.headers
        assert not "if-none-match" in r.headers

    def test_replace(self):
        r = tutils.treq()
        r.path = "path/foo"
        r.headers["Foo"] = ["fOo"]
        r.content = "afoob"
        assert r.replace("foo(?i)", "boo") == 4
        assert r.path == "path/boo"
        assert not "foo" in r.content
        assert r.headers["boo"] == ["boo"]

    def test_constrain_encoding(self):
        r = tutils.treq()
        r.headers["accept-encoding"] = ["gzip", "oink"]
        r.constrain_encoding()
        assert "oink" not in r.headers["accept-encoding"]

    def test_decodeencode(self):
        r = tutils.treq()
        r.headers["content-encoding"] = ["identity"]
        r.content = "falafel"
        r.decode()
        assert not r.headers["content-encoding"]
        assert r.content == "falafel"

        r = tutils.treq()
        r.content = "falafel"
        assert not r.decode()

        r = tutils.treq()
        r.headers["content-encoding"] = ["identity"]
        r.content = "falafel"
        r.encode("identity")
        assert r.headers["content-encoding"] == ["identity"]
        assert r.content == "falafel"

        r = tutils.treq()
        r.headers["content-encoding"] = ["identity"]
        r.content = "falafel"
        r.encode("gzip")
        assert r.headers["content-encoding"] == ["gzip"]
        assert r.content != "falafel"
        r.decode()
        assert not r.headers["content-encoding"]
        assert r.content == "falafel"

    def test_get_decoded_content(self):
        r = tutils.treq()
        r.content = None
        r.headers["content-encoding"] = ["identity"]
        assert r.get_decoded_content() == None

        r.content = "falafel"
        r.encode("gzip")
        assert r.get_decoded_content() == "falafel"

    def test_get_cookies_none(self):
        h = flow.ODictCaseless()
        r = tutils.treq()
        r.headers = h
        assert r.get_cookies() is None

    def test_get_cookies_single(self):
        h = flow.ODictCaseless()
        h["Cookie"] = ["cookiename=cookievalue"]
        r = tutils.treq()
        r.headers = h
        result = r.get_cookies()
        assert len(result)==1
        assert result['cookiename']==('cookievalue',{})

    def test_get_cookies_double(self):
        h = flow.ODictCaseless()
        h["Cookie"] = ["cookiename=cookievalue;othercookiename=othercookievalue"]
        r = tutils.treq()
        r.headers = h
        result = r.get_cookies()
        assert len(result)==2
        assert result['cookiename']==('cookievalue',{})
        assert result['othercookiename']==('othercookievalue',{})

    def test_get_cookies_withequalsign(self):
        h = flow.ODictCaseless()
        h["Cookie"] = ["cookiename=coo=kievalue;othercookiename=othercookievalue"]
        r = tutils.treq()
        r.headers = h
        result = r.get_cookies()
        assert len(result)==2
        assert result['cookiename']==('coo=kievalue',{})
        assert result['othercookiename']==('othercookievalue',{})

    def test_header_size(self):
        h = flow.ODictCaseless()
        h["headername"] = ["headervalue"]
        r = tutils.treq()
        r.headers = h
        raw = r._assemble_headers()
        assert len(raw) == 62

    def test_get_content_type(self):
        h = flow.ODictCaseless()
        h["Content-Type"] = ["text/plain"]
        resp = tutils.tresp()
        resp.headers = h
        assert resp.headers.get_first("content-type") == "text/plain"

class TestResponse:
    def test_simple(self):
        f = tutils.tflow(resp=True)
        resp = f.response
        assert resp.assemble()
        assert resp.size() == len(resp.assemble())

        resp2 = resp.copy()
        assert resp2.get_state() == resp.get_state()

        resp.content = None
        assert resp.assemble()
        assert resp.size() == len(resp.assemble())

        resp.content = CONTENT_MISSING
        tutils.raises("Cannot assemble flow with CONTENT_MISSING", resp.assemble)

    def test_refresh(self):
        r = tutils.tresp()
        n = time.time()
        r.headers["date"] = [email.utils.formatdate(n)]
        pre = r.headers["date"]
        r.refresh(n)
        assert pre == r.headers["date"]
        r.refresh(n+60)

        d = email.utils.parsedate_tz(r.headers["date"][0])
        d = email.utils.mktime_tz(d)
        # Weird that this is not exact...
        assert abs(60-(d-n)) <= 1

        r.headers["set-cookie"] = ["MOO=BAR; Expires=Tue, 08-Mar-2011 00:20:38 GMT; Path=foo.com; Secure"]
        r.refresh()

    def test_refresh_cookie(self):
        r = tutils.tresp()

        # Invalid expires format, sent to us by Reddit.
        c = "rfoo=bar; Domain=reddit.com; expires=Thu, 31 Dec 2037 23:59:59 GMT; Path=/"
        assert r._refresh_cookie(c, 60)

        c = "MOO=BAR; Expires=Tue, 08-Mar-2011 00:20:38 GMT; Path=foo.com; Secure"
        assert "00:21:38" in r._refresh_cookie(c, 60)

    def test_replace(self):
        r = tutils.tresp()
        r.headers["Foo"] = ["fOo"]
        r.content = "afoob"
        assert r.replace("foo(?i)", "boo") == 3
        assert not "foo" in r.content
        assert r.headers["boo"] == ["boo"]

    def test_decodeencode(self):
        r = tutils.tresp()
        r.headers["content-encoding"] = ["identity"]
        r.content = "falafel"
        assert r.decode()
        assert not r.headers["content-encoding"]
        assert r.content == "falafel"

        r = tutils.tresp()
        r.headers["content-encoding"] = ["identity"]
        r.content = "falafel"
        r.encode("identity")
        assert r.headers["content-encoding"] == ["identity"]
        assert r.content == "falafel"

        r = tutils.tresp()
        r.headers["content-encoding"] = ["identity"]
        r.content = "falafel"
        r.encode("gzip")
        assert r.headers["content-encoding"] == ["gzip"]
        assert r.content != "falafel"
        assert r.decode()
        assert not r.headers["content-encoding"]
        assert r.content == "falafel"

        r.headers["content-encoding"] = ["gzip"]
        assert not r.decode()
        assert r.content == "falafel"

    def test_header_size(self):
        r = tutils.tresp()
        result = len(r._assemble_headers())
        assert result==44

    def test_get_cookies_none(self):
        h = flow.ODictCaseless()
        resp = tutils.tresp()
        resp.headers = h
        assert not resp.get_cookies()

    def test_get_cookies_simple(self):
        h = flow.ODictCaseless()
        h["Set-Cookie"] = ["cookiename=cookievalue"]
        resp = tutils.tresp()
        resp.headers = h
        result = resp.get_cookies()
        assert len(result)==1
        assert "cookiename" in result
        assert result["cookiename"] == ("cookievalue", {})

    def test_get_cookies_with_parameters(self):
        h = flow.ODictCaseless()
        h["Set-Cookie"] = ["cookiename=cookievalue;domain=example.com;expires=Wed Oct  21 16:29:41 2015;path=/; HttpOnly"]
        resp = tutils.tresp()
        resp.headers = h
        result = resp.get_cookies()
        assert len(result)==1
        assert "cookiename" in result
        assert result["cookiename"][0] == "cookievalue"
        assert len(result["cookiename"][1])==4
        assert result["cookiename"][1]["domain"]=="example.com"
        assert result["cookiename"][1]["expires"]=="Wed Oct  21 16:29:41 2015"
        assert result["cookiename"][1]["path"]=="/"
        assert result["cookiename"][1]["httponly"]==""

    def test_get_cookies_no_value(self):
        h = flow.ODictCaseless()
        h["Set-Cookie"] = ["cookiename=; Expires=Thu, 01-Jan-1970 00:00:01 GMT; path=/"]
        resp = tutils.tresp()
        resp.headers = h
        result = resp.get_cookies()
        assert len(result)==1
        assert "cookiename" in result
        assert result["cookiename"][0] == ""
        assert len(result["cookiename"][1])==2

    def test_get_cookies_twocookies(self):
        h = flow.ODictCaseless()
        h["Set-Cookie"] = ["cookiename=cookievalue","othercookie=othervalue"]
        resp = tutils.tresp()
        resp.headers = h
        result = resp.get_cookies()
        assert len(result)==2
        assert "cookiename" in result
        assert result["cookiename"] == ("cookievalue", {})
        assert "othercookie" in result
        assert result["othercookie"] == ("othervalue", {})

    def test_get_content_type(self):
        h = flow.ODictCaseless()
        h["Content-Type"] = ["text/plain"]
        resp = tutils.tresp()
        resp.headers = h
        assert resp.headers.get_first("content-type") == "text/plain"


class TestError:
    def test_getset_state(self):
        e = Error("Error")
        state = e.get_state()
        assert Error.from_state(state).get_state() == e.get_state()

        assert e.copy()

        e2 = Error("bar")
        assert not e == e2
        e.load_state(e2.get_state())
        assert e.get_state() == e2.get_state()

        e3 = e.copy()
        assert e3.get_state() == e.get_state()


class TestClientConnection:
    def test_state(self):

        c = tutils.tclient_conn()
        assert ClientConnection.from_state(c.get_state()).get_state() ==\
               c.get_state()

        c2 = tutils.tclient_conn()
        c2.address.address = (c2.address.host, 4242)
        assert not c == c2

        c2.timestamp_start = 42
        c.load_state(c2.get_state())
        assert c.timestamp_start == 42

        c3 = c.copy()
        assert c3.get_state() == c.get_state()

        assert str(c)


def test_decoded():
    r = tutils.treq()
    assert r.content == "content"
    assert not r.headers["content-encoding"]
    r.encode("gzip")
    assert r.headers["content-encoding"]
    assert r.content != "content"
    with decoded(r):
        assert not r.headers["content-encoding"]
        assert r.content == "content"
    assert r.headers["content-encoding"]
    assert r.content != "content"

    with decoded(r):
        r.content = "foo"

    assert r.content != "foo"
    r.decode()
    assert r.content == "foo"


def test_replacehooks():
    h = flow.ReplaceHooks()
    h.add("~q", "foo", "bar")
    assert h.lst

    h.set(
        [
            (".*", "one", "two"),
            (".*", "three", "four"),
        ]
    )
    assert h.count() == 2

    h.clear()
    assert not h.lst

    h.add("~q", "foo", "bar")
    h.add("~s", "foo", "bar")

    v = h.get_specs()
    assert v == [('~q', 'foo', 'bar'), ('~s', 'foo', 'bar')]
    assert h.count() == 2
    h.clear()
    assert h.count() == 0

    f = tutils.tflow()
    f.request.content = "foo"
    h.add("~s", "foo", "bar")
    h.run(f)
    assert f.request.content == "foo"

    f = tutils.tflow(resp=True)
    f.request.content = "foo"
    f.response.content = "foo"
    h.run(f)
    assert f.response.content == "bar"
    assert f.request.content == "foo"

    f = tutils.tflow()
    h.clear()
    h.add("~q", "foo", "bar")
    f.request.content = "foo"
    h.run(f)
    assert f.request.content == "bar"

    assert not h.add("~", "foo", "bar")
    assert not h.add("foo", "*", "bar")


def test_setheaders():
    h = flow.SetHeaders()
    h.add("~q", "foo", "bar")
    assert h.lst

    h.set(
        [
            (".*", "one", "two"),
            (".*", "three", "four"),
        ]
    )
    assert h.count() == 2

    h.clear()
    assert not h.lst

    h.add("~q", "foo", "bar")
    h.add("~s", "foo", "bar")

    v = h.get_specs()
    assert v == [('~q', 'foo', 'bar'), ('~s', 'foo', 'bar')]
    assert h.count() == 2
    h.clear()
    assert h.count() == 0

    f = tutils.tflow()
    f.request.content = "foo"
    h.add("~s", "foo", "bar")
    h.run(f)
    assert f.request.content == "foo"


    h.clear()
    h.add("~s", "one", "two")
    h.add("~s", "one", "three")
    f = tutils.tflow(resp=True)
    f.request.headers["one"] = ["xxx"]
    f.response.headers["one"] = ["xxx"]
    h.run(f)
    assert f.request.headers["one"] == ["xxx"]
    assert f.response.headers["one"] == ["two", "three"]

    h.clear()
    h.add("~q", "one", "two")
    h.add("~q", "one", "three")
    f = tutils.tflow()
    f.request.headers["one"] = ["xxx"]
    h.run(f)
    assert f.request.headers["one"] == ["two", "three"]

    assert not h.add("~", "foo", "bar")