import socket, time
from netlib import tcp
from libpathod import pathoc
import tutils

"""
    Note that the choice of response code in these tests matters more than you
    might think. libcurl treats a 304 response code differently from, say, a
    200 response code - it will correctly terminate a 304 response with no
    content-length header, whereas it will block forever waiting for content
    for a 200 response.
"""

class SanityMixin:
    def test_http(self):
        assert self.pathod("304").status_code == 304
        assert self.master.state.view

    def test_large(self):
        assert len(self.pathod("200:b@50k").content) == 1024*50

    def test_replay(self):
        assert self.pathod("304").status_code == 304
        assert len(self.master.state.view) == 1
        l = self.master.state.view[0]
        assert l.response.code == 304
        l.request.path = "/p/305"
        rt = self.master.replay_request(l, block=True)
        assert l.response.code == 305

        # Disconnect error
        l.request.path = "/p/305:d0"
        rt = self.master.replay_request(l, block=True)
        assert l.error

        # Port error
        l.request.port = 1
        self.master.replay_request(l, block=True)
        assert l.error


class TestHTTP(tutils.HTTPProxTest, SanityMixin):
    def test_invalid_http(self):
        t = tcp.TCPClient("127.0.0.1", self.proxy.port)
        t.connect()
        t.wfile.write("invalid\n\n")
        t.wfile.flush()
        assert "Bad Request" in t.rfile.readline()

    def test_invalid_connect(self):
        t = tcp.TCPClient("127.0.0.1", self.proxy.port)
        t.connect()
        t.wfile.write("CONNECT invalid\n\n")
        t.wfile.flush()
        assert "Bad Request" in t.rfile.readline()

    def test_upstream_ssl_error(self):
        p = self.pathoc()
        ret = p.request("get:'https://localhost:%s/'"%self.server.port)
        assert ret[1] == 400

    def test_http(self):
        f = self.pathod("304")
        assert f.status_code == 304

        l = self.master.state.view[0]
        assert l.request.client_conn.address
        assert "host" in l.request.headers
        assert l.response.code == 304


class TestHTTPS(tutils.HTTPProxTest, SanityMixin):
    ssl = True
    # FIXME: Instrument pathod to actually test that client cert is being sent
    # correctly.
    clientcerts = True


class TestReverse(tutils.ReverseProxTest, SanityMixin):
    reverse = True


class TestTransparent(tutils.TransparentProxTest, SanityMixin):
    transparent = True


class TestProxy(tutils.HTTPProxTest):
    def test_http(self):
        f = self.pathod("304")
        assert f.status_code == 304

        l = self.master.state.view[0]
        assert l.request.client_conn.address
        assert "host" in l.request.headers
        assert l.response.code == 304

    def test_response_timestamps(self):
        # test that we notice at least 2 sec delay between timestamps
        # in response object
        f = self.pathod("304:b@1k:p50,2")
        assert f.status_code == 304

        response = self.master.state.view[0].response
        assert 2 <= response.timestamp_end - response.timestamp_start <= 2.2

    def test_request_timestamps(self):
        # test that we notice at least 2 sec delay between timestamps
        # in request object
        connection = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        connection.connect(("127.0.0.1", self.proxy.port))

        # call pathod server, wait a second to complete the request
        connection.send("GET http://localhost:%d/p/304:b@1k HTTP/1.1\r\n"%self.server.port)
        time.sleep(0.1)
        connection.send("\r\n");
        connection.recv(50000)
        connection.close()

        request, response = self.master.state.view[0].request, self.master.state.view[0].response
        assert response.code == 304  # sanity test for our low level request
        assert 0 <= request.timestamp_end - request.timestamp_start <= 0.2

    def test_request_timestamps_not_affected_by_client_time(self):
        # test that don't include user wait time in request's timestamps

        f = self.pathod("304:b@10k")
        assert f.status_code == 304
        f = self.pathod("304:b@10k")
        assert f.status_code == 304

        request = self.master.state.view[0].request
        assert request.timestamp_end - request.timestamp_start <= 0.1

        request = self.master.state.view[1].request
        assert request.timestamp_end - request.timestamp_start <= 0.1