import io import pytest from pathod import pathod from mitmproxy.net import tcp from mitmproxy import exceptions from mitmproxy.utils import data from . import tservers cdata = data.Data(__name__) class TestPathod: def test_logging(self): s = io.StringIO() p = pathod.Pathod(("127.0.0.1", 0), logfp=s) assert len(p.get_log()) == 0 id = p.add_log(dict(s="foo")) assert p.log_by_id(id) assert len(p.get_log()) == 1 p.clear_log() assert len(p.get_log()) == 0 for _ in range(p.LOGBUF + 1): p.add_log(dict(s="foo")) assert len(p.get_log()) <= p.LOGBUF class TestTimeout(tservers.DaemonTests): timeout = 0.01 def test_timeout(self): # FIXME: Add float values to spec language, reduce test timeout to # increase test performance # This is a bodge - we have some platform difference that causes # different exceptions to be raised here. with pytest.raises(Exception): self.pathoc(["get:/:p1,1"]) assert self.d.last_log()["type"] == "timeout" class TestNotAfterConnect(tservers.DaemonTests): ssl = False ssloptions = dict( not_after_connect=True ) def test_connect(self): r, _ = self.pathoc( [r"get:'http://foo.com/p/202':da"], connect_to=("localhost", self.d.port) ) assert r[0].status_code == 202 class TestCustomCert(tservers.DaemonTests): ssl = True ssloptions = dict( certs=[("*", cdata.path("data/testkey.pem"))], ) def test_connect(self): r, _ = self.pathoc([r"get:/p/202"]) r = r[0] assert r.status_code == 202 assert r.sslinfo assert "test.com" in str(r.sslinfo.certchain[0].get_subject()) class TestSSLCN(tservers.DaemonTests): ssl = True ssloptions = dict( cn=b"foo.com" ) def test_connect(self): r, _ = self.pathoc([r"get:/p/202"]) r = r[0] assert r.status_code == 202 assert r.sslinfo assert r.sslinfo.certchain[0].get_subject().CN == "foo.com" class TestNohang(tservers.DaemonTests): nohang = True def test_nohang(self): r = self.get("200:p0,0") assert r.status_code == 800 l = self.d.last_log() assert "Pauses have been disabled" in l["response"]["msg"] class TestHexdump(tservers.DaemonTests): hexdump = True def test_hexdump(self): assert self.get(r"200:b'\xf0'") class TestNocraft(tservers.DaemonTests): nocraft = True def test_nocraft(self): r = self.get(r"200:b'\xf0'") assert r.status_code == 800 assert b"Crafting disabled" in r.content class CommonTests(tservers.DaemonTests): def test_binarydata(self): assert self.get(r"200:b'\xf0'") assert self.d.last_log() # FIXME: Other binary data elements def test_sizelimit(self): r = self.get("200:b@1g") assert r.status_code == 800 l = self.d.last_log() assert "too large" in l["response"]["msg"] def test_preline(self): r, _ = self.pathoc([r"get:'/p/200':i0,'\r\n'"]) assert r[0].status_code == 200 def test_logs(self): self.d.clear_log() assert self.get("202:da") assert self.d.expect_log(1) self.d.clear_log() assert len(self.d.log()) == 0 def test_disconnect(self): with pytest.raises(Exception, match="Unexpected EOF"): self.get("202:b@100k:d200") def test_parserr(self): rsp = self.get("400:msg,b:") assert rsp.status_code == 800 def test_static(self): rsp = self.get("200:b 0 class TestHTTP2(tservers.DaemonTests): ssl = True nohang = True def test_http2(self): r, _ = self.pathoc(["GET:/"], ssl=True, use_http2=True) assert r[0].status_code == 800 '>127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 
from unittest import mock
import codecs

import hyperframe
from mitmproxy.net import tcp, http
from mitmproxy.test.tutils import raises
from mitmproxy.net.http import http2
from mitmproxy import exceptions

from ..mitmproxy.net import tservers as net_tservers

from pathod.protocols.http2 import HTTP2StateProtocol, TCPHandler

from ..conftest import requires_alpn


class TestTCPHandlerWrapper:
    def test_wrapped(self):
        h = TCPHandler(rfile='foo', wfile='bar')
        p = HTTP2StateProtocol(h)
        assert p.tcp_handler.rfile == 'foo'
        assert p.tcp_handler.wfile == 'bar'

    def test_direct(self):
        p = HTTP2StateProtocol(rfile='foo', wfile='bar')
        assert isinstance(p.tcp_handler, TCPHandler)
        assert p.tcp_handler.rfile == 'foo'
        assert p.tcp_handler.wfile == 'bar'


class EchoHandler(tcp.BaseHandler):
    sni = None

    def handle(self):
        while True:
            v = self.rfile.safe_read(1)
            self.wfile.write(v)
            self.wfile.flush()


class TestProtocol:
    @mock.patch("pathod.protocols.http2.HTTP2StateProtocol.perform_server_connection_preface")
    @mock.patch("pathod.protocols.http2.HTTP2StateProtocol.perform_client_connection_preface")
    def test_perform_connection_preface(self, mock_client_method, mock_server_method):
        protocol = HTTP2StateProtocol(is_server=False)
        protocol.connection_preface_performed = True

        protocol.perform_connection_preface()
        assert not mock_client_method.called
        assert not mock_server_method.called

        protocol.perform_connection_preface(force=True)
        assert mock_client_method.called
        assert not mock_server_method.called

    @mock.patch("pathod.protocols.http2.HTTP2StateProtocol.perform_server_connection_preface")
    @mock.patch("pathod.protocols.http2.HTTP2StateProtocol.perform_client_connection_preface")
    def test_perform_connection_preface_server(self, mock_client_method, mock_server_method):
        protocol = HTTP2StateProtocol(is_server=True)
        protocol.connection_preface_performed = True

        protocol.perform_connection_preface()
        assert not mock_client_method.called
        assert not mock_server_method.called

        protocol.perform_connection_preface(force=True)
        assert not mock_client_method.called
        assert mock_server_method.called


@requires_alpn
class TestCheckALPNMatch(net_tservers.ServerTestBase):
    handler = EchoHandler
    ssl = dict(
        alpn_select=b'h2',
    )

    def test_check_alpn(self):
        c = tcp.TCPClient(("127.0.0.1", self.port))
        with c.connect():
            c.convert_to_ssl(alpn_protos=[b'h2'])
            protocol = HTTP2StateProtocol(c)
            assert protocol.check_alpn()


@requires_alpn
class TestCheckALPNMismatch(net_tservers.ServerTestBase):
    handler = EchoHandler
    ssl = dict(
        alpn_select=None,
    )

    def test_check_alpn(self):
        c = tcp.TCPClient(("127.0.0.1", self.port))
        with c.connect():
            c.convert_to_ssl(alpn_protos=[b'h2'])
            protocol = HTTP2StateProtocol(c)
            with raises(NotImplementedError):
                protocol.check_alpn()


class TestPerformServerConnectionPreface(net_tservers.ServerTestBase):
    class handler(tcp.BaseHandler):

        def handle(self):
            # send magic
            self.wfile.write(codecs.decode('505249202a20485454502f322e300d0a0d0a534d0d0a0d0a', 'hex_codec'))
            self.wfile.flush()

            # send empty settings frame
            self.wfile.write(codecs.decode('000000040000000000', 'hex_codec'))
            self.wfile.flush()

            # check empty settings frame
            raw = http2.read_raw_frame(self.rfile)
            assert raw == codecs.decode('00000c040000000000000200000000000300000001', 'hex_codec')

            # check settings acknowledgement
            raw = http2.read_raw_frame(self.rfile)
            assert raw == codecs.decode('000000040100000000', 'hex_codec')

            # send settings acknowledgement
            self.wfile.write(codecs.decode('000000040100000000', 'hex_codec'))
            self.wfile.flush()

    def test_perform_server_connection_preface(self):
        c = tcp.TCPClient(("127.0.0.1", self.port))
        with c.connect():
            protocol = HTTP2StateProtocol(c)

            assert not protocol.connection_preface_performed
            protocol.perform_server_connection_preface()
            assert protocol.connection_preface_performed

            with raises(exceptions.TcpDisconnect):
                protocol.perform_server_connection_preface(force=True)


class TestPerformClientConnectionPreface(net_tservers.ServerTestBase):
    class handler(tcp.BaseHandler):

        def handle(self):
            # check magic
            assert self.rfile.read(24) == HTTP2StateProtocol.CLIENT_CONNECTION_PREFACE

            # check empty settings frame
            assert self.rfile.read(9) ==\
                codecs.decode('000000040000000000', 'hex_codec')

            # send empty settings frame
            self.wfile.write(codecs.decode('000000040000000000', 'hex_codec'))
            self.wfile.flush()

            # check settings acknowledgement
            assert self.rfile.read(9) == \
                codecs.decode('000000040100000000', 'hex_codec')

            # send settings acknowledgement
            self.wfile.write(codecs.decode('000000040100000000', 'hex_codec'))
            self.wfile.flush()

    def test_perform_client_connection_preface(self):
        c = tcp.TCPClient(("127.0.0.1", self.port))
        with c.connect():
            protocol = HTTP2StateProtocol(c)

            assert not protocol.connection_preface_performed
            protocol.perform_client_connection_preface()
            assert protocol.connection_preface_performed


class TestClientStreamIds:
    c = tcp.TCPClient(("127.0.0.1", 0))
    protocol = HTTP2StateProtocol(c)

    def test_client_stream_ids(self):
        assert self.protocol.current_stream_id is None
        assert self.protocol._next_stream_id() == 1
        assert self.protocol.current_stream_id == 1
        assert self.protocol._next_stream_id() == 3
        assert self.protocol.current_stream_id == 3
        assert self.protocol._next_stream_id() == 5
        assert self.protocol.current_stream_id == 5


class TestserverstreamIds:
    c = tcp.TCPClient(("127.0.0.1", 0))
    protocol = HTTP2StateProtocol(c, is_server=True)

    def test_server_stream_ids(self):
        assert self.protocol.current_stream_id is None
        assert self.protocol._next_stream_id() == 2
        assert self.protocol.current_stream_id == 2
        assert self.protocol._next_stream_id() == 4
        assert self.protocol.current_stream_id == 4
        assert self.protocol._next_stream_id() == 6
        assert self.protocol.current_stream_id == 6


class TestApplySettings(net_tservers.ServerTestBase):
    class handler(tcp.BaseHandler):
        def handle(self):
            # check settings acknowledgement
            assert self.rfile.read(9) == codecs.decode('000000040100000000', 'hex_codec')
            self.wfile.write("OK")
            self.wfile.flush()
            self.rfile.safe_read(9)  # just to keep the connection alive a bit longer

    ssl = True

    def test_apply_settings(self):
        c = tcp.TCPClient(("127.0.0.1", self.port))
        with c.connect():
            c.convert_to_ssl()
            protocol = HTTP2StateProtocol(c)

            protocol._apply_settings({
                hyperframe.frame.SettingsFrame.ENABLE_PUSH: 'foo',
                hyperframe.frame.SettingsFrame.MAX_CONCURRENT_STREAMS: 'bar',
                hyperframe.frame.SettingsFrame.INITIAL_WINDOW_SIZE: 'deadbeef',
            })

            assert c.rfile.safe_read(2) == b"OK"

            assert protocol.http2_settings[
                hyperframe.frame.SettingsFrame.ENABLE_PUSH] == 'foo'
            assert protocol.http2_settings[
                hyperframe.frame.SettingsFrame.MAX_CONCURRENT_STREAMS] == 'bar'
            assert protocol.http2_settings[
                hyperframe.frame.SettingsFrame.INITIAL_WINDOW_SIZE] == 'deadbeef'


class TestCreateHeaders:
    c = tcp.TCPClient(("127.0.0.1", 0))

    def test_create_headers(self):
        headers = http.Headers([
            (b':method', b'GET'),
            (b':path', b'index.html'),
            (b':scheme', b'https'),
            (b'foo', b'bar')])

        bytes = HTTP2StateProtocol(self.c)._create_headers(
            headers, 1, end_stream=True)
        assert b''.join(bytes) ==\
            codecs.decode('000014010500000001824488355217caf3a69a3f87408294e7838c767f', 'hex_codec')

        bytes = HTTP2StateProtocol(self.c)._create_headers(
            headers, 1, end_stream=False)
        assert b''.join(bytes) ==\
            codecs.decode('000014010400000001824488355217caf3a69a3f87408294e7838c767f', 'hex_codec')

    def test_create_headers_multiple_frames(self):
        headers = http.Headers([
            (b':method', b'GET'),
            (b':path', b'/'),
            (b':scheme', b'https'),
            (b'foo', b'bar'),
            (b'server', b'version')])

        protocol = HTTP2StateProtocol(self.c)
        protocol.http2_settings[hyperframe.frame.SettingsFrame.MAX_FRAME_SIZE] = 8
        bytes = protocol._create_headers(headers, 1, end_stream=True)
        assert len(bytes) == 3
        assert bytes[0] == codecs.decode('000008010100000001828487408294e783', 'hex_codec')
        assert bytes[1] == codecs.decode('0000080900000000018c767f7685ee5b10', 'hex_codec')
        assert bytes[2] == codecs.decode('00000209040000000163d5', 'hex_codec')


class TestCreateBody:
    c = tcp.TCPClient(("127.0.0.1", 0))

    def test_create_body_empty(self):
        protocol = HTTP2StateProtocol(self.c)
        bytes = protocol._create_body(b'', 1)
        assert b''.join(bytes) == b''

    def test_create_body_single_frame(self):
        protocol = HTTP2StateProtocol(self.c)
        bytes = protocol._create_body(b'foobar', 1)
        assert b''.join(bytes) == codecs.decode('000006000100000001666f6f626172', 'hex_codec')

    def test_create_body_multiple_frames(self):
        protocol = HTTP2StateProtocol(self.c)
        protocol.http2_settings[hyperframe.frame.SettingsFrame.MAX_FRAME_SIZE] = 5
        bytes = protocol._create_body(b'foobarmehm42', 1)
        assert len(bytes) == 3
        assert bytes[0] == codecs.decode('000005000000000001666f6f6261', 'hex_codec')
        assert bytes[1] == codecs.decode('000005000000000001726d65686d', 'hex_codec')
        assert bytes[2] == codecs.decode('0000020001000000013432', 'hex_codec')


class TestReadRequest(net_tservers.ServerTestBase):
    class handler(tcp.BaseHandler):

        def handle(self):
            self.wfile.write(
                codecs.decode('000003010400000001828487', 'hex_codec'))
            self.wfile.write(
                codecs.decode('000006000100000001666f6f626172', 'hex_codec'))
            self.wfile.flush()
            self.rfile.safe_read(9)  # just to keep the connection alive a bit longer

    ssl = True

    def test_read_request(self):
        c = tcp.TCPClient(("127.0.0.1", self.port))
        with c.connect():
            c.convert_to_ssl()
            protocol = HTTP2StateProtocol(c, is_server=True)
            protocol.connection_preface_performed = True

            req = protocol.read_request(NotImplemented)

            assert req.stream_id
            assert req.headers.fields == ()
            assert req.method == "GET"
            assert req.path == "/"
            assert req.scheme == "https"
            assert req.content == b'foobar'


class TestReadRequestRelative(net_tservers.ServerTestBase):
    class handler(tcp.BaseHandler):
        def handle(self):
            self.wfile.write(
                codecs.decode('00000c0105000000014287d5af7e4d5a777f4481f9', 'hex_codec'))
            self.wfile.flush()

    ssl = True

    def test_asterisk_form(self):
        c = tcp.TCPClient(("127.0.0.1", self.port))
        with c.connect():
            c.convert_to_ssl()
            protocol = HTTP2StateProtocol(c, is_server=True)
            protocol.connection_preface_performed = True

            req = protocol.read_request(NotImplemented)

            assert req.first_line_format == "relative"
            assert req.method == "OPTIONS"
            assert req.path == "*"


class TestReadRequestAbsolute(net_tservers.ServerTestBase):
    class handler(tcp.BaseHandler):
        def handle(self):
            self.wfile.write(
                codecs.decode('00001901050000000182448d9d29aee30c0e492c2a1170426366871c92585422e085', 'hex_codec'))
            self.wfile.flush()

    ssl = True

    def test_absolute_form(self):
        c = tcp.TCPClient(("127.0.0.1", self.port))
        with c.connect():
            c.convert_to_ssl()
            protocol = HTTP2StateProtocol(c, is_server=True)
            protocol.connection_preface_performed = True

            req = protocol.read_request(NotImplemented)

            assert req.first_line_format == "absolute"
            assert req.scheme == "http"
            assert req.host == "address"
            assert req.port == 22


class TestReadResponse(net_tservers.ServerTestBase):
    class handler(tcp.BaseHandler):
        def handle(self):
            self.wfile.write(
                codecs.decode('00000801040000002a88628594e78c767f', 'hex_codec'))
            self.wfile.write(
                codecs.decode('00000600010000002a666f6f626172', 'hex_codec'))
            self.wfile.flush()
            self.rfile.safe_read(9)  # just to keep the connection alive a bit longer

    ssl = True

    def test_read_response(self):
        c = tcp.TCPClient(("127.0.0.1", self.port))
        with c.connect():
            c.convert_to_ssl()
            protocol = HTTP2StateProtocol(c)
            protocol.connection_preface_performed = True

            resp = protocol.read_response(NotImplemented, stream_id=42)

            assert resp.http_version == "HTTP/2.0"
            assert resp.status_code == 200
            assert resp.reason == ''
            assert resp.headers.fields == ((b':status', b'200'), (b'etag', b'foobar'))
            assert resp.content == b'foobar'
            assert resp.timestamp_end


class TestReadEmptyResponse(net_tservers.ServerTestBase):
    class handler(tcp.BaseHandler):
        def handle(self):
            self.wfile.write(
                codecs.decode('00000801050000002a88628594e78c767f', 'hex_codec'))
            self.wfile.flush()

    ssl = True

    def test_read_empty_response(self):
        c = tcp.TCPClient(("127.0.0.1", self.port))
        with c.connect():
            c.convert_to_ssl()
            protocol = HTTP2StateProtocol(c)
            protocol.connection_preface_performed = True

            resp = protocol.read_response(NotImplemented, stream_id=42)

            assert resp.stream_id == 42
            assert resp.http_version == "HTTP/2.0"
            assert resp.status_code == 200
            assert resp.reason == ''
            assert resp.headers.fields == ((b':status', b'200'), (b'etag', b'foobar'))
            assert resp.content == b''


class TestAssembleRequest:
    c = tcp.TCPClient(("127.0.0.1", 0))

    def test_request_simple(self):
        bytes = HTTP2StateProtocol(self.c).assemble_request(http.Request(
            b'',
            b'GET',
            b'https',
            b'',
            b'',
            b'/',
            b"HTTP/2.0",
            (),
            None,
        ))
        assert len(bytes) == 1
        assert bytes[0] == codecs.decode('00000d0105000000018284874188089d5c0b8170dc07', 'hex_codec')

    def test_request_with_stream_id(self):
        req = http.Request(
            b'',
            b'GET',
            b'https',
            b'',
            b'',
            b'/',
            b"HTTP/2.0",
            (),
            None,
        )
        req.stream_id = 0x42
        bytes = HTTP2StateProtocol(self.c).assemble_request(req)
        assert len(bytes) == 1
        assert bytes[0] == codecs.decode('00000d0105000000428284874188089d5c0b8170dc07', 'hex_codec')

    def test_request_with_body(self):
        bytes = HTTP2StateProtocol(self.c).assemble_request(http.Request(
            b'',
            b'GET',
            b'https',
            b'',
            b'',
            b'/',
            b"HTTP/2.0",
            http.Headers([(b'foo', b'bar')]),
            b'foobar',
        ))
        assert len(bytes) == 2
        assert bytes[0] ==\
            codecs.decode('0000150104000000018284874188089d5c0b8170dc07408294e7838c767f', 'hex_codec')
        assert bytes[1] ==\
            codecs.decode('000006000100000001666f6f626172', 'hex_codec')


class TestAssembleResponse:
    c = tcp.TCPClient(("127.0.0.1", 0))

    def test_simple(self):
        bytes = HTTP2StateProtocol(self.c, is_server=True).assemble_response(http.Response(
            b"HTTP/2.0",
            200,
        ))
        assert len(bytes) == 1
        assert bytes[0] ==\
            codecs.decode('00000101050000000288', 'hex_codec')

    def test_with_stream_id(self):
        resp = http.Response(
            b"HTTP/2.0",
            200,
        )
        resp.stream_id = 0x42
        bytes = HTTP2StateProtocol(self.c, is_server=True).assemble_response(resp)
        assert len(bytes) == 1
        assert bytes[0] ==\
            codecs.decode('00000101050000004288', 'hex_codec')

    def test_with_body(self):
        bytes = HTTP2StateProtocol(self.c, is_server=True).assemble_response(http.Response(
            b"HTTP/2.0",
            200,
            b'',
            http.Headers(foo=b"bar"),
            b'foobar'
        ))
        assert len(bytes) == 2
        assert bytes[0] ==\
            codecs.decode('00000901040000000288408294e7838c767f', 'hex_codec')
        assert bytes[1] ==\
            codecs.decode('000006000100000002666f6f626172', 'hex_codec')