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b/venv/lib/python3.11/site-packages/h11/tests/__pycache__/test_util.cpython-311.pyc Binary files differnew file mode 100644 index 0000000..b3bfd20 --- /dev/null +++ b/venv/lib/python3.11/site-packages/h11/tests/__pycache__/test_util.cpython-311.pyc diff --git a/venv/lib/python3.11/site-packages/h11/tests/data/test-file b/venv/lib/python3.11/site-packages/h11/tests/data/test-file new file mode 100644 index 0000000..d0be0a6 --- /dev/null +++ b/venv/lib/python3.11/site-packages/h11/tests/data/test-file @@ -0,0 +1 @@ +92b12bc045050b55b848d37167a1a63947c364579889ce1d39788e45e9fac9e5 diff --git a/venv/lib/python3.11/site-packages/h11/tests/helpers.py b/venv/lib/python3.11/site-packages/h11/tests/helpers.py new file mode 100644 index 0000000..571be44 --- /dev/null +++ b/venv/lib/python3.11/site-packages/h11/tests/helpers.py @@ -0,0 +1,101 @@ +from typing import cast, List, Type, Union, ValuesView + +from .._connection import Connection, NEED_DATA, PAUSED +from .._events import ( + ConnectionClosed, + Data, + EndOfMessage, + Event, + InformationalResponse, + Request, + Response, +) +from .._state import CLIENT, CLOSED, DONE, MUST_CLOSE, SERVER +from .._util import Sentinel + +try: + from typing import Literal +except ImportError: + from typing_extensions import Literal # type: ignore + + +def get_all_events(conn: Connection) -> List[Event]: + got_events = [] + while True: + event = conn.next_event() + if event in (NEED_DATA, PAUSED): + break + event = cast(Event, event) + got_events.append(event) + if type(event) is ConnectionClosed: + break + return got_events + + +def receive_and_get(conn: Connection, data: bytes) -> List[Event]: + conn.receive_data(data) + return get_all_events(conn) + + +# Merges adjacent Data events, converts payloads to bytestrings, and removes +# chunk boundaries. +def normalize_data_events(in_events: List[Event]) -> List[Event]: + out_events: List[Event] = [] + for event in in_events: + if type(event) is Data: + event = Data(data=bytes(event.data), chunk_start=False, chunk_end=False) + if out_events and type(out_events[-1]) is type(event) is Data: + out_events[-1] = Data( + data=out_events[-1].data + event.data, + chunk_start=out_events[-1].chunk_start, + chunk_end=out_events[-1].chunk_end, + ) + else: + out_events.append(event) + return out_events + + +# Given that we want to write tests that push some events through a Connection +# and check that its state updates appropriately... we might as make a habit +# of pushing them through two Connections with a fake network link in +# between. +class ConnectionPair: + def __init__(self) -> None: + self.conn = {CLIENT: Connection(CLIENT), SERVER: Connection(SERVER)} + self.other = {CLIENT: SERVER, SERVER: CLIENT} + + @property + def conns(self) -> ValuesView[Connection]: + return self.conn.values() + + # expect="match" if expect=send_events; expect=[...] to say what expected + def send( + self, + role: Type[Sentinel], + send_events: Union[List[Event], Event], + expect: Union[List[Event], Event, Literal["match"]] = "match", + ) -> bytes: + if not isinstance(send_events, list): + send_events = [send_events] + data = b"" + closed = False + for send_event in send_events: + new_data = self.conn[role].send(send_event) + if new_data is None: + closed = True + else: + data += new_data + # send uses b"" to mean b"", and None to mean closed + # receive uses b"" to mean closed, and None to mean "try again" + # so we have to translate between the two conventions + if data: + self.conn[self.other[role]].receive_data(data) + if closed: + self.conn[self.other[role]].receive_data(b"") + got_events = get_all_events(self.conn[self.other[role]]) + if expect == "match": + expect = send_events + if not isinstance(expect, list): + expect = [expect] + assert got_events == expect + return data diff --git a/venv/lib/python3.11/site-packages/h11/tests/test_against_stdlib_http.py b/venv/lib/python3.11/site-packages/h11/tests/test_against_stdlib_http.py new file mode 100644 index 0000000..d2ee131 --- /dev/null +++ b/venv/lib/python3.11/site-packages/h11/tests/test_against_stdlib_http.py @@ -0,0 +1,115 @@ +import json +import os.path +import socket +import socketserver +import threading +from contextlib import closing, contextmanager +from http.server import SimpleHTTPRequestHandler +from typing import Callable, Generator +from urllib.request import urlopen + +import h11 + + +@contextmanager +def socket_server( + handler: Callable[..., socketserver.BaseRequestHandler] +) -> Generator[socketserver.TCPServer, None, None]: + httpd = socketserver.TCPServer(("127.0.0.1", 0), handler) + thread = threading.Thread( + target=httpd.serve_forever, kwargs={"poll_interval": 0.01} + ) + thread.daemon = True + try: + thread.start() + yield httpd + finally: + httpd.shutdown() + + +test_file_path = os.path.join(os.path.dirname(__file__), "data/test-file") +with open(test_file_path, "rb") as f: + test_file_data = f.read() + + +class SingleMindedRequestHandler(SimpleHTTPRequestHandler): + def translate_path(self, path: str) -> str: + return test_file_path + + +def test_h11_as_client() -> None: + with socket_server(SingleMindedRequestHandler) as httpd: + with closing(socket.create_connection(httpd.server_address)) as s: + c = h11.Connection(h11.CLIENT) + + s.sendall( + c.send( # type: ignore[arg-type] + h11.Request( + method="GET", target="/foo", headers=[("Host", "localhost")] + ) + ) + ) + s.sendall(c.send(h11.EndOfMessage())) # type: ignore[arg-type] + + data = bytearray() + while True: + event = c.next_event() + print(event) + if event is h11.NEED_DATA: + # Use a small read buffer to make things more challenging + # and exercise more paths :-) + c.receive_data(s.recv(10)) + continue + if type(event) is h11.Response: + assert event.status_code == 200 + if type(event) is h11.Data: + data += event.data + if type(event) is h11.EndOfMessage: + break + assert bytes(data) == test_file_data + + +class H11RequestHandler(socketserver.BaseRequestHandler): + def handle(self) -> None: + with closing(self.request) as s: + c = h11.Connection(h11.SERVER) + request = None + while True: + event = c.next_event() + if event is h11.NEED_DATA: + # Use a small read buffer to make things more challenging + # and exercise more paths :-) + c.receive_data(s.recv(10)) + continue + if type(event) is h11.Request: + request = event + if type(event) is h11.EndOfMessage: + break + assert request is not None + info = json.dumps( + { + "method": request.method.decode("ascii"), + "target": request.target.decode("ascii"), + "headers": { + name.decode("ascii"): value.decode("ascii") + for (name, value) in request.headers + }, + } + ) + s.sendall(c.send(h11.Response(status_code=200, headers=[]))) # type: ignore[arg-type] + s.sendall(c.send(h11.Data(data=info.encode("ascii")))) + s.sendall(c.send(h11.EndOfMessage())) + + +def test_h11_as_server() -> None: + with socket_server(H11RequestHandler) as httpd: + host, port = httpd.server_address + url = "http://{}:{}/some-path".format(host, port) + with closing(urlopen(url)) as f: + assert f.getcode() == 200 + data = f.read() + info = json.loads(data.decode("ascii")) + print(info) + assert info["method"] == "GET" + assert info["target"] == "/some-path" + assert "urllib" in info["headers"]["user-agent"] diff --git a/venv/lib/python3.11/site-packages/h11/tests/test_connection.py b/venv/lib/python3.11/site-packages/h11/tests/test_connection.py new file mode 100644 index 0000000..73a27b9 --- /dev/null +++ b/venv/lib/python3.11/site-packages/h11/tests/test_connection.py @@ -0,0 +1,1122 @@ +from typing import Any, cast, Dict, List, Optional, Tuple, Type + +import pytest + +from .._connection import _body_framing, _keep_alive, Connection, NEED_DATA, PAUSED +from .._events import ( + ConnectionClosed, + Data, + EndOfMessage, + Event, + InformationalResponse, + Request, + Response, +) +from .._state import ( + CLIENT, + CLOSED, + DONE, + ERROR, + IDLE, + MIGHT_SWITCH_PROTOCOL, + MUST_CLOSE, + SEND_BODY, + SEND_RESPONSE, + SERVER, + SWITCHED_PROTOCOL, +) +from .._util import LocalProtocolError, RemoteProtocolError, Sentinel +from .helpers import ConnectionPair, get_all_events, receive_and_get + + +def test__keep_alive() -> None: + assert _keep_alive( + Request(method="GET", target="/", headers=[("Host", "Example.com")]) + ) + assert not _keep_alive( + Request( + method="GET", + target="/", + headers=[("Host", "Example.com"), ("Connection", "close")], + ) + ) + assert not _keep_alive( + Request( + method="GET", + target="/", + headers=[("Host", "Example.com"), ("Connection", "a, b, cLOse, foo")], + ) + ) + assert not _keep_alive( + Request(method="GET", target="/", headers=[], http_version="1.0") # type: ignore[arg-type] + ) + + assert _keep_alive(Response(status_code=200, headers=[])) # type: ignore[arg-type] + assert not _keep_alive(Response(status_code=200, headers=[("Connection", "close")])) + assert not _keep_alive( + Response(status_code=200, headers=[("Connection", "a, b, cLOse, foo")]) + ) + assert not _keep_alive(Response(status_code=200, headers=[], http_version="1.0")) # type: ignore[arg-type] + + +def test__body_framing() -> None: + def headers(cl: Optional[int], te: bool) -> List[Tuple[str, str]]: + headers = [] + if cl is not None: + headers.append(("Content-Length", str(cl))) + if te: + headers.append(("Transfer-Encoding", "chunked")) + return headers + + def resp( + status_code: int = 200, cl: Optional[int] = None, te: bool = False + ) -> Response: + return Response(status_code=status_code, headers=headers(cl, te)) + + def req(cl: Optional[int] = None, te: bool = False) -> Request: + h = headers(cl, te) + h += [("Host", "example.com")] + return Request(method="GET", target="/", headers=h) + + # Special cases where the headers are ignored: + for kwargs in [{}, {"cl": 100}, {"te": True}, {"cl": 100, "te": True}]: + kwargs = cast(Dict[str, Any], kwargs) + for meth, r in [ + (b"HEAD", resp(**kwargs)), + (b"GET", resp(status_code=204, **kwargs)), + (b"GET", resp(status_code=304, **kwargs)), + ]: + assert _body_framing(meth, r) == ("content-length", (0,)) + + # Transfer-encoding + for kwargs in [{"te": True}, {"cl": 100, "te": True}]: + kwargs = cast(Dict[str, Any], kwargs) + for meth, r in [(None, req(**kwargs)), (b"GET", resp(**kwargs))]: # type: ignore + assert _body_framing(meth, r) == ("chunked", ()) + + # Content-Length + for meth, r in [(None, req(cl=100)), (b"GET", resp(cl=100))]: # type: ignore + assert _body_framing(meth, r) == ("content-length", (100,)) + + # No headers + assert _body_framing(None, req()) == ("content-length", (0,)) # type: ignore + assert _body_framing(b"GET", resp()) == ("http/1.0", ()) + + +def test_Connection_basics_and_content_length() -> None: + with pytest.raises(ValueError): + Connection("CLIENT") # type: ignore + + p = ConnectionPair() + assert p.conn[CLIENT].our_role is CLIENT + assert p.conn[CLIENT].their_role is SERVER + assert p.conn[SERVER].our_role is SERVER + assert p.conn[SERVER].their_role is CLIENT + + data = p.send( + CLIENT, + Request( + method="GET", + target="/", + headers=[("Host", "example.com"), ("Content-Length", "10")], + ), + ) + assert data == ( + b"GET / HTTP/1.1\r\n" b"Host: example.com\r\n" b"Content-Length: 10\r\n\r\n" + ) + + for conn in p.conns: + assert conn.states == {CLIENT: SEND_BODY, SERVER: SEND_RESPONSE} + assert p.conn[CLIENT].our_state is SEND_BODY + assert p.conn[CLIENT].their_state is SEND_RESPONSE + assert p.conn[SERVER].our_state is SEND_RESPONSE + assert p.conn[SERVER].their_state is SEND_BODY + + assert p.conn[CLIENT].their_http_version is None + assert p.conn[SERVER].their_http_version == b"1.1" + + data = p.send(SERVER, InformationalResponse(status_code=100, headers=[])) # type: ignore[arg-type] + assert data == b"HTTP/1.1 100 \r\n\r\n" + + data = p.send(SERVER, Response(status_code=200, headers=[("Content-Length", "11")])) + assert data == b"HTTP/1.1 200 \r\nContent-Length: 11\r\n\r\n" + + for conn in p.conns: + assert conn.states == {CLIENT: SEND_BODY, SERVER: SEND_BODY} + + assert p.conn[CLIENT].their_http_version == b"1.1" + assert p.conn[SERVER].their_http_version == b"1.1" + + data = p.send(CLIENT, Data(data=b"12345")) + assert data == b"12345" + data = p.send( + CLIENT, Data(data=b"67890"), expect=[Data(data=b"67890"), EndOfMessage()] + ) + assert data == b"67890" + data = p.send(CLIENT, EndOfMessage(), expect=[]) + assert data == b"" + + for conn in p.conns: + assert conn.states == {CLIENT: DONE, SERVER: SEND_BODY} + + data = p.send(SERVER, Data(data=b"1234567890")) + assert data == b"1234567890" + data = p.send(SERVER, Data(data=b"1"), expect=[Data(data=b"1"), EndOfMessage()]) + assert data == b"1" + data = p.send(SERVER, EndOfMessage(), expect=[]) + assert data == b"" + + for conn in p.conns: + assert conn.states == {CLIENT: DONE, SERVER: DONE} + + +def test_chunked() -> None: + p = ConnectionPair() + + p.send( + CLIENT, + Request( + method="GET", + target="/", + headers=[("Host", "example.com"), ("Transfer-Encoding", "chunked")], + ), + ) + data = p.send(CLIENT, Data(data=b"1234567890", chunk_start=True, chunk_end=True)) + assert data == b"a\r\n1234567890\r\n" + data = p.send(CLIENT, Data(data=b"abcde", chunk_start=True, chunk_end=True)) + assert data == b"5\r\nabcde\r\n" + data = p.send(CLIENT, Data(data=b""), expect=[]) + assert data == b"" + data = p.send(CLIENT, EndOfMessage(headers=[("hello", "there")])) + assert data == b"0\r\nhello: there\r\n\r\n" + + p.send( + SERVER, Response(status_code=200, headers=[("Transfer-Encoding", "chunked")]) + ) + p.send(SERVER, Data(data=b"54321", chunk_start=True, chunk_end=True)) + p.send(SERVER, Data(data=b"12345", chunk_start=True, chunk_end=True)) + p.send(SERVER, EndOfMessage()) + + for conn in p.conns: + assert conn.states == {CLIENT: DONE, SERVER: DONE} + + +def test_chunk_boundaries() -> None: + conn = Connection(our_role=SERVER) + + request = ( + b"POST / HTTP/1.1\r\n" + b"Host: example.com\r\n" + b"Transfer-Encoding: chunked\r\n" + b"\r\n" + ) + conn.receive_data(request) + assert conn.next_event() == Request( + method="POST", + target="/", + headers=[("Host", "example.com"), ("Transfer-Encoding", "chunked")], + ) + assert conn.next_event() is NEED_DATA + + conn.receive_data(b"5\r\nhello\r\n") + assert conn.next_event() == Data(data=b"hello", chunk_start=True, chunk_end=True) + + conn.receive_data(b"5\r\nhel") + assert conn.next_event() == Data(data=b"hel", chunk_start=True, chunk_end=False) + + conn.receive_data(b"l") + assert conn.next_event() == Data(data=b"l", chunk_start=False, chunk_end=False) + + conn.receive_data(b"o\r\n") + assert conn.next_event() == Data(data=b"o", chunk_start=False, chunk_end=True) + + conn.receive_data(b"5\r\nhello") + assert conn.next_event() == Data(data=b"hello", chunk_start=True, chunk_end=True) + + conn.receive_data(b"\r\n") + assert conn.next_event() == NEED_DATA + + conn.receive_data(b"0\r\n\r\n") + assert conn.next_event() == EndOfMessage() + + +def test_client_talking_to_http10_server() -> None: + c = Connection(CLIENT) + c.send(Request(method="GET", target="/", headers=[("Host", "example.com")])) + c.send(EndOfMessage()) + assert c.our_state is DONE + # No content-length, so Http10 framing for body + assert receive_and_get(c, b"HTTP/1.0 200 OK\r\n\r\n") == [ + Response(status_code=200, headers=[], http_version="1.0", reason=b"OK") # type: ignore[arg-type] + ] + assert c.our_state is MUST_CLOSE + assert receive_and_get(c, b"12345") == [Data(data=b"12345")] + assert receive_and_get(c, b"67890") == [Data(data=b"67890")] + assert receive_and_get(c, b"") == [EndOfMessage(), ConnectionClosed()] + assert c.their_state is CLOSED + + +def test_server_talking_to_http10_client() -> None: + c = Connection(SERVER) + # No content-length, so no body + # NB: no host header + assert receive_and_get(c, b"GET / HTTP/1.0\r\n\r\n") == [ + Request(method="GET", target="/", headers=[], http_version="1.0"), # type: ignore[arg-type] + EndOfMessage(), + ] + assert c.their_state is MUST_CLOSE + + # We automatically Connection: close back at them + assert ( + c.send(Response(status_code=200, headers=[])) # type: ignore[arg-type] + == b"HTTP/1.1 200 \r\nConnection: close\r\n\r\n" + ) + + assert c.send(Data(data=b"12345")) == b"12345" + assert c.send(EndOfMessage()) == b"" + assert c.our_state is MUST_CLOSE + + # Check that it works if they do send Content-Length + c = Connection(SERVER) + # NB: no host header + assert receive_and_get(c, b"POST / HTTP/1.0\r\nContent-Length: 10\r\n\r\n1") == [ + Request( + method="POST", + target="/", + headers=[("Content-Length", "10")], + http_version="1.0", + ), + Data(data=b"1"), + ] + assert receive_and_get(c, b"234567890") == [Data(data=b"234567890"), EndOfMessage()] + assert c.their_state is MUST_CLOSE + assert receive_and_get(c, b"") == [ConnectionClosed()] + + +def test_automatic_transfer_encoding_in_response() -> None: + # Check that in responses, the user can specify either Transfer-Encoding: + # chunked or no framing at all, and in both cases we automatically select + # the right option depending on whether the peer speaks HTTP/1.0 or + # HTTP/1.1 + for user_headers in [ + [("Transfer-Encoding", "chunked")], + [], + # In fact, this even works if Content-Length is set, + # because if both are set then Transfer-Encoding wins + [("Transfer-Encoding", "chunked"), ("Content-Length", "100")], + ]: + user_headers = cast(List[Tuple[str, str]], user_headers) + p = ConnectionPair() + p.send( + CLIENT, + [ + Request(method="GET", target="/", headers=[("Host", "example.com")]), + EndOfMessage(), + ], + ) + # When speaking to HTTP/1.1 client, all of the above cases get + # normalized to Transfer-Encoding: chunked + p.send( + SERVER, + Response(status_code=200, headers=user_headers), + expect=Response( + status_code=200, headers=[("Transfer-Encoding", "chunked")] + ), + ) + + # When speaking to HTTP/1.0 client, all of the above cases get + # normalized to no-framing-headers + c = Connection(SERVER) + receive_and_get(c, b"GET / HTTP/1.0\r\n\r\n") + assert ( + c.send(Response(status_code=200, headers=user_headers)) + == b"HTTP/1.1 200 \r\nConnection: close\r\n\r\n" + ) + assert c.send(Data(data=b"12345")) == b"12345" + + +def test_automagic_connection_close_handling() -> None: + p = ConnectionPair() + # If the user explicitly sets Connection: close, then we notice and + # respect it + p.send( + CLIENT, + [ + Request( + method="GET", + target="/", + headers=[("Host", "example.com"), ("Connection", "close")], + ), + EndOfMessage(), + ], + ) + for conn in p.conns: + assert conn.states[CLIENT] is MUST_CLOSE + # And if the client sets it, the server automatically echoes it back + p.send( + SERVER, + # no header here... + [Response(status_code=204, headers=[]), EndOfMessage()], # type: ignore[arg-type] + # ...but oh look, it arrived anyway + expect=[ + Response(status_code=204, headers=[("connection", "close")]), + EndOfMessage(), + ], + ) + for conn in p.conns: + assert conn.states == {CLIENT: MUST_CLOSE, SERVER: MUST_CLOSE} + + +def test_100_continue() -> None: + def setup() -> ConnectionPair: + p = ConnectionPair() + p.send( + CLIENT, + Request( + method="GET", + target="/", + headers=[ + ("Host", "example.com"), + ("Content-Length", "100"), + ("Expect", "100-continue"), + ], + ), + ) + for conn in p.conns: + assert conn.client_is_waiting_for_100_continue + assert not p.conn[CLIENT].they_are_waiting_for_100_continue + assert p.conn[SERVER].they_are_waiting_for_100_continue + return p + + # Disabled by 100 Continue + p = setup() + p.send(SERVER, InformationalResponse(status_code=100, headers=[])) # type: ignore[arg-type] + for conn in p.conns: + assert not conn.client_is_waiting_for_100_continue + assert not conn.they_are_waiting_for_100_continue + + # Disabled by a real response + p = setup() + p.send( + SERVER, Response(status_code=200, headers=[("Transfer-Encoding", "chunked")]) + ) + for conn in p.conns: + assert not conn.client_is_waiting_for_100_continue + assert not conn.they_are_waiting_for_100_continue + + # Disabled by the client going ahead and sending stuff anyway + p = setup() + p.send(CLIENT, Data(data=b"12345")) + for conn in p.conns: + assert not conn.client_is_waiting_for_100_continue + assert not conn.they_are_waiting_for_100_continue + + +def test_max_incomplete_event_size_countermeasure() -> None: + # Infinitely long headers are definitely not okay + c = Connection(SERVER) + c.receive_data(b"GET / HTTP/1.0\r\nEndless: ") + assert c.next_event() is NEED_DATA + with pytest.raises(RemoteProtocolError): + while True: + c.receive_data(b"a" * 1024) + c.next_event() + + # Checking that the same header is accepted / rejected depending on the + # max_incomplete_event_size setting: + c = Connection(SERVER, max_incomplete_event_size=5000) + c.receive_data(b"GET / HTTP/1.0\r\nBig: ") + c.receive_data(b"a" * 4000) + c.receive_data(b"\r\n\r\n") + assert get_all_events(c) == [ + Request( + method="GET", target="/", http_version="1.0", headers=[("big", "a" * 4000)] + ), + EndOfMessage(), + ] + + c = Connection(SERVER, max_incomplete_event_size=4000) + c.receive_data(b"GET / HTTP/1.0\r\nBig: ") + c.receive_data(b"a" * 4000) + with pytest.raises(RemoteProtocolError): + c.next_event() + + # Temporarily exceeding the size limit is fine, as long as its done with + # complete events: + c = Connection(SERVER, max_incomplete_event_size=5000) + c.receive_data(b"GET / HTTP/1.0\r\nContent-Length: 10000") + c.receive_data(b"\r\n\r\n" + b"a" * 10000) + assert get_all_events(c) == [ + Request( + method="GET", + target="/", + http_version="1.0", + headers=[("Content-Length", "10000")], + ), + Data(data=b"a" * 10000), + EndOfMessage(), + ] + + c = Connection(SERVER, max_incomplete_event_size=100) + # Two pipelined requests to create a way-too-big receive buffer... but + # it's fine because we're not checking + c.receive_data( + b"GET /1 HTTP/1.1\r\nHost: a\r\n\r\n" + b"GET /2 HTTP/1.1\r\nHost: b\r\n\r\n" + b"X" * 1000 + ) + assert get_all_events(c) == [ + Request(method="GET", target="/1", headers=[("host", "a")]), + EndOfMessage(), + ] + # Even more data comes in, still no problem + c.receive_data(b"X" * 1000) + # We can respond and reuse to get the second pipelined request + c.send(Response(status_code=200, headers=[])) # type: ignore[arg-type] + c.send(EndOfMessage()) + c.start_next_cycle() + assert get_all_events(c) == [ + Request(method="GET", target="/2", headers=[("host", "b")]), + EndOfMessage(), + ] + # But once we unpause and try to read the next message, and find that it's + # incomplete and the buffer is *still* way too large, then *that's* a + # problem: + c.send(Response(status_code=200, headers=[])) # type: ignore[arg-type] + c.send(EndOfMessage()) + c.start_next_cycle() + with pytest.raises(RemoteProtocolError): + c.next_event() + + +def test_reuse_simple() -> None: + p = ConnectionPair() + p.send( + CLIENT, + [Request(method="GET", target="/", headers=[("Host", "a")]), EndOfMessage()], + ) + p.send( + SERVER, + [ + Response(status_code=200, headers=[(b"transfer-encoding", b"chunked")]), + EndOfMessage(), + ], + ) + for conn in p.conns: + assert conn.states == {CLIENT: DONE, SERVER: DONE} + conn.start_next_cycle() + + p.send( + CLIENT, + [ + Request(method="DELETE", target="/foo", headers=[("Host", "a")]), + EndOfMessage(), + ], + ) + p.send( + SERVER, + [ + Response(status_code=404, headers=[(b"transfer-encoding", b"chunked")]), + EndOfMessage(), + ], + ) + + +def test_pipelining() -> None: + # Client doesn't support pipelining, so we have to do this by hand + c = Connection(SERVER) + assert c.next_event() is NEED_DATA + # 3 requests all bunched up + c.receive_data( + b"GET /1 HTTP/1.1\r\nHost: a.com\r\nContent-Length: 5\r\n\r\n" + b"12345" + b"GET /2 HTTP/1.1\r\nHost: a.com\r\nContent-Length: 5\r\n\r\n" + b"67890" + b"GET /3 HTTP/1.1\r\nHost: a.com\r\n\r\n" + ) + assert get_all_events(c) == [ + Request( + method="GET", + target="/1", + headers=[("Host", "a.com"), ("Content-Length", "5")], + ), + Data(data=b"12345"), + EndOfMessage(), + ] + assert c.their_state is DONE + assert c.our_state is SEND_RESPONSE + + assert c.next_event() is PAUSED + + c.send(Response(status_code=200, headers=[])) # type: ignore[arg-type] + c.send(EndOfMessage()) + assert c.their_state is DONE + assert c.our_state is DONE + + c.start_next_cycle() + + assert get_all_events(c) == [ + Request( + method="GET", + target="/2", + headers=[("Host", "a.com"), ("Content-Length", "5")], + ), + Data(data=b"67890"), + EndOfMessage(), + ] + assert c.next_event() is PAUSED + c.send(Response(status_code=200, headers=[])) # type: ignore[arg-type] + c.send(EndOfMessage()) + c.start_next_cycle() + + assert get_all_events(c) == [ + Request(method="GET", target="/3", headers=[("Host", "a.com")]), + EndOfMessage(), + ] + # Doesn't pause this time, no trailing data + assert c.next_event() is NEED_DATA + c.send(Response(status_code=200, headers=[])) # type: ignore[arg-type] + c.send(EndOfMessage()) + + # Arrival of more data triggers pause + assert c.next_event() is NEED_DATA + c.receive_data(b"SADF") + assert c.next_event() is PAUSED + assert c.trailing_data == (b"SADF", False) + # If EOF arrives while paused, we don't see that either: + c.receive_data(b"") + assert c.trailing_data == (b"SADF", True) + assert c.next_event() is PAUSED + c.receive_data(b"") + assert c.next_event() is PAUSED + # Can't call receive_data with non-empty buf after closing it + with pytest.raises(RuntimeError): + c.receive_data(b"FDSA") + + +def test_protocol_switch() -> None: + for (req, deny, accept) in [ + ( + Request( + method="CONNECT", + target="example.com:443", + headers=[("Host", "foo"), ("Content-Length", "1")], + ), + Response(status_code=404, headers=[(b"transfer-encoding", b"chunked")]), + Response(status_code=200, headers=[(b"transfer-encoding", b"chunked")]), + ), + ( + Request( + method="GET", + target="/", + headers=[("Host", "foo"), ("Content-Length", "1"), ("Upgrade", "a, b")], + ), + Response(status_code=200, headers=[(b"transfer-encoding", b"chunked")]), + InformationalResponse(status_code=101, headers=[("Upgrade", "a")]), + ), + ( + Request( + method="CONNECT", + target="example.com:443", + headers=[("Host", "foo"), ("Content-Length", "1"), ("Upgrade", "a, b")], + ), + Response(status_code=404, headers=[(b"transfer-encoding", b"chunked")]), + # Accept CONNECT, not upgrade + Response(status_code=200, headers=[(b"transfer-encoding", b"chunked")]), + ), + ( + Request( + method="CONNECT", + target="example.com:443", + headers=[("Host", "foo"), ("Content-Length", "1"), ("Upgrade", "a, b")], + ), + Response(status_code=404, headers=[(b"transfer-encoding", b"chunked")]), + # Accept Upgrade, not CONNECT + InformationalResponse(status_code=101, headers=[("Upgrade", "b")]), + ), + ]: + + def setup() -> ConnectionPair: + p = ConnectionPair() + p.send(CLIENT, req) + # No switch-related state change stuff yet; the client has to + # finish the request before that kicks in + for conn in p.conns: + assert conn.states[CLIENT] is SEND_BODY + p.send(CLIENT, [Data(data=b"1"), EndOfMessage()]) + for conn in p.conns: + assert conn.states[CLIENT] is MIGHT_SWITCH_PROTOCOL + assert p.conn[SERVER].next_event() is PAUSED + return p + + # Test deny case + p = setup() + p.send(SERVER, deny) + for conn in p.conns: + assert conn.states == {CLIENT: DONE, SERVER: SEND_BODY} + p.send(SERVER, EndOfMessage()) + # Check that re-use is still allowed after a denial + for conn in p.conns: + conn.start_next_cycle() + + # Test accept case + p = setup() + p.send(SERVER, accept) + for conn in p.conns: + assert conn.states == {CLIENT: SWITCHED_PROTOCOL, SERVER: SWITCHED_PROTOCOL} + conn.receive_data(b"123") + assert conn.next_event() is PAUSED + conn.receive_data(b"456") + assert conn.next_event() is PAUSED + assert conn.trailing_data == (b"123456", False) + + # Pausing in might-switch, then recovery + # (weird artificial case where the trailing data actually is valid + # HTTP for some reason, because this makes it easier to test the state + # logic) + p = setup() + sc = p.conn[SERVER] + sc.receive_data(b"GET / HTTP/1.0\r\n\r\n") + assert sc.next_event() is PAUSED + assert sc.trailing_data == (b"GET / HTTP/1.0\r\n\r\n", False) + sc.send(deny) + assert sc.next_event() is PAUSED + sc.send(EndOfMessage()) + sc.start_next_cycle() + assert get_all_events(sc) == [ + Request(method="GET", target="/", headers=[], http_version="1.0"), # type: ignore[arg-type] + EndOfMessage(), + ] + + # When we're DONE, have no trailing data, and the connection gets + # closed, we report ConnectionClosed(). When we're in might-switch or + # switched, we don't. + p = setup() + sc = p.conn[SERVER] + sc.receive_data(b"") + assert sc.next_event() is PAUSED + assert sc.trailing_data == (b"", True) + p.send(SERVER, accept) + assert sc.next_event() is PAUSED + + p = setup() + sc = p.conn[SERVER] + sc.receive_data(b"") + assert sc.next_event() is PAUSED + sc.send(deny) + assert sc.next_event() == ConnectionClosed() + + # You can't send after switching protocols, or while waiting for a + # protocol switch + p = setup() + with pytest.raises(LocalProtocolError): + p.conn[CLIENT].send( + Request(method="GET", target="/", headers=[("Host", "a")]) + ) + p = setup() + p.send(SERVER, accept) + with pytest.raises(LocalProtocolError): + p.conn[SERVER].send(Data(data=b"123")) + + +def test_close_simple() -> None: + # Just immediately closing a new connection without anything having + # happened yet. + for (who_shot_first, who_shot_second) in [(CLIENT, SERVER), (SERVER, CLIENT)]: + + def setup() -> ConnectionPair: + p = ConnectionPair() + p.send(who_shot_first, ConnectionClosed()) + for conn in p.conns: + assert conn.states == { + who_shot_first: CLOSED, + who_shot_second: MUST_CLOSE, + } + return p + + # You can keep putting b"" into a closed connection, and you keep + # getting ConnectionClosed() out: + p = setup() + assert p.conn[who_shot_second].next_event() == ConnectionClosed() + assert p.conn[who_shot_second].next_event() == ConnectionClosed() + p.conn[who_shot_second].receive_data(b"") + assert p.conn[who_shot_second].next_event() == ConnectionClosed() + # Second party can close... + p = setup() + p.send(who_shot_second, ConnectionClosed()) + for conn in p.conns: + assert conn.our_state is CLOSED + assert conn.their_state is CLOSED + # But trying to receive new data on a closed connection is a + # RuntimeError (not ProtocolError, because the problem here isn't + # violation of HTTP, it's violation of physics) + p = setup() + with pytest.raises(RuntimeError): + p.conn[who_shot_second].receive_data(b"123") + # And receiving new data on a MUST_CLOSE connection is a ProtocolError + p = setup() + p.conn[who_shot_first].receive_data(b"GET") + with pytest.raises(RemoteProtocolError): + p.conn[who_shot_first].next_event() + + +def test_close_different_states() -> None: + req = [ + Request(method="GET", target="/foo", headers=[("Host", "a")]), + EndOfMessage(), + ] + resp = [ + Response(status_code=200, headers=[(b"transfer-encoding", b"chunked")]), + EndOfMessage(), + ] + + # Client before request + p = ConnectionPair() + p.send(CLIENT, ConnectionClosed()) + for conn in p.conns: + assert conn.states == {CLIENT: CLOSED, SERVER: MUST_CLOSE} + + # Client after request + p = ConnectionPair() + p.send(CLIENT, req) + p.send(CLIENT, ConnectionClosed()) + for conn in p.conns: + assert conn.states == {CLIENT: CLOSED, SERVER: SEND_RESPONSE} + + # Server after request -> not allowed + p = ConnectionPair() + p.send(CLIENT, req) + with pytest.raises(LocalProtocolError): + p.conn[SERVER].send(ConnectionClosed()) + p.conn[CLIENT].receive_data(b"") + with pytest.raises(RemoteProtocolError): + p.conn[CLIENT].next_event() + + # Server after response + p = ConnectionPair() + p.send(CLIENT, req) + p.send(SERVER, resp) + p.send(SERVER, ConnectionClosed()) + for conn in p.conns: + assert conn.states == {CLIENT: MUST_CLOSE, SERVER: CLOSED} + + # Both after closing (ConnectionClosed() is idempotent) + p = ConnectionPair() + p.send(CLIENT, req) + p.send(SERVER, resp) + p.send(CLIENT, ConnectionClosed()) + p.send(SERVER, ConnectionClosed()) + p.send(CLIENT, ConnectionClosed()) + p.send(SERVER, ConnectionClosed()) + + # In the middle of sending -> not allowed + p = ConnectionPair() + p.send( + CLIENT, + Request( + method="GET", target="/", headers=[("Host", "a"), ("Content-Length", "10")] + ), + ) + with pytest.raises(LocalProtocolError): + p.conn[CLIENT].send(ConnectionClosed()) + p.conn[SERVER].receive_data(b"") + with pytest.raises(RemoteProtocolError): + p.conn[SERVER].next_event() + + +# Receive several requests and then client shuts down their side of the +# connection; we can respond to each +def test_pipelined_close() -> None: + c = Connection(SERVER) + # 2 requests then a close + c.receive_data( + b"GET /1 HTTP/1.1\r\nHost: a.com\r\nContent-Length: 5\r\n\r\n" + b"12345" + b"GET /2 HTTP/1.1\r\nHost: a.com\r\nContent-Length: 5\r\n\r\n" + b"67890" + ) + c.receive_data(b"") + assert get_all_events(c) == [ + Request( + method="GET", + target="/1", + headers=[("host", "a.com"), ("content-length", "5")], + ), + Data(data=b"12345"), + EndOfMessage(), + ] + assert c.states[CLIENT] is DONE + c.send(Response(status_code=200, headers=[])) # type: ignore[arg-type] + c.send(EndOfMessage()) + assert c.states[SERVER] is DONE + c.start_next_cycle() + assert get_all_events(c) == [ + Request( + method="GET", + target="/2", + headers=[("host", "a.com"), ("content-length", "5")], + ), + Data(data=b"67890"), + EndOfMessage(), + ConnectionClosed(), + ] + assert c.states == {CLIENT: CLOSED, SERVER: SEND_RESPONSE} + c.send(Response(status_code=200, headers=[])) # type: ignore[arg-type] + c.send(EndOfMessage()) + assert c.states == {CLIENT: CLOSED, SERVER: MUST_CLOSE} + c.send(ConnectionClosed()) + assert c.states == {CLIENT: CLOSED, SERVER: CLOSED} + + +def test_sendfile() -> None: + class SendfilePlaceholder: + def __len__(self) -> int: + return 10 + + placeholder = SendfilePlaceholder() + + def setup( + header: Tuple[str, str], http_version: str + ) -> Tuple[Connection, Optional[List[bytes]]]: + c = Connection(SERVER) + receive_and_get( + c, "GET / HTTP/{}\r\nHost: a\r\n\r\n".format(http_version).encode("ascii") + ) + headers = [] + if header: + headers.append(header) + c.send(Response(status_code=200, headers=headers)) + return c, c.send_with_data_passthrough(Data(data=placeholder)) # type: ignore + + c, data = setup(("Content-Length", "10"), "1.1") + assert data == [placeholder] # type: ignore + # Raises an error if the connection object doesn't think we've sent + # exactly 10 bytes + c.send(EndOfMessage()) + + _, data = setup(("Transfer-Encoding", "chunked"), "1.1") + assert placeholder in data # type: ignore + data[data.index(placeholder)] = b"x" * 10 # type: ignore + assert b"".join(data) == b"a\r\nxxxxxxxxxx\r\n" # type: ignore + + c, data = setup(None, "1.0") # type: ignore + assert data == [placeholder] # type: ignore + assert c.our_state is SEND_BODY + + +def test_errors() -> None: + # After a receive error, you can't receive + for role in [CLIENT, SERVER]: + c = Connection(our_role=role) + c.receive_data(b"gibberish\r\n\r\n") + with pytest.raises(RemoteProtocolError): + c.next_event() + # Now any attempt to receive continues to raise + assert c.their_state is ERROR + assert c.our_state is not ERROR + print(c._cstate.states) + with pytest.raises(RemoteProtocolError): + c.next_event() + # But we can still yell at the client for sending us gibberish + if role is SERVER: + assert ( + c.send(Response(status_code=400, headers=[])) # type: ignore[arg-type] + == b"HTTP/1.1 400 \r\nConnection: close\r\n\r\n" + ) + + # After an error sending, you can no longer send + # (This is especially important for things like content-length errors, + # where there's complex internal state being modified) + def conn(role: Type[Sentinel]) -> Connection: + c = Connection(our_role=role) + if role is SERVER: + # Put it into the state where it *could* send a response... + receive_and_get(c, b"GET / HTTP/1.0\r\n\r\n") + assert c.our_state is SEND_RESPONSE + return c + + for role in [CLIENT, SERVER]: + if role is CLIENT: + # This HTTP/1.0 request won't be detected as bad until after we go + # through the state machine and hit the writing code + good = Request(method="GET", target="/", headers=[("Host", "example.com")]) + bad = Request( + method="GET", + target="/", + headers=[("Host", "example.com")], + http_version="1.0", + ) + elif role is SERVER: + good = Response(status_code=200, headers=[]) # type: ignore[arg-type,assignment] + bad = Response(status_code=200, headers=[], http_version="1.0") # type: ignore[arg-type,assignment] + # Make sure 'good' actually is good + c = conn(role) + c.send(good) + assert c.our_state is not ERROR + # Do that again, but this time sending 'bad' first + c = conn(role) + with pytest.raises(LocalProtocolError): + c.send(bad) + assert c.our_state is ERROR + assert c.their_state is not ERROR + # Now 'good' is not so good + with pytest.raises(LocalProtocolError): + c.send(good) + + # And check send_failed() too + c = conn(role) + c.send_failed() + assert c.our_state is ERROR + assert c.their_state is not ERROR + # This is idempotent + c.send_failed() + assert c.our_state is ERROR + assert c.their_state is not ERROR + + +def test_idle_receive_nothing() -> None: + # At one point this incorrectly raised an error + for role in [CLIENT, SERVER]: + c = Connection(role) + assert c.next_event() is NEED_DATA + + +def test_connection_drop() -> None: + c = Connection(SERVER) + c.receive_data(b"GET /") + assert c.next_event() is NEED_DATA + c.receive_data(b"") + with pytest.raises(RemoteProtocolError): + c.next_event() + + +def test_408_request_timeout() -> None: + # Should be able to send this spontaneously as a server without seeing + # anything from client + p = ConnectionPair() + p.send(SERVER, Response(status_code=408, headers=[(b"connection", b"close")])) + + +# This used to raise IndexError +def test_empty_request() -> None: + c = Connection(SERVER) + c.receive_data(b"\r\n") + with pytest.raises(RemoteProtocolError): + c.next_event() + + +# This used to raise IndexError +def test_empty_response() -> None: + c = Connection(CLIENT) + c.send(Request(method="GET", target="/", headers=[("Host", "a")])) + c.receive_data(b"\r\n") + with pytest.raises(RemoteProtocolError): + c.next_event() + + +@pytest.mark.parametrize( + "data", + [ + b"\x00", + b"\x20", + b"\x16\x03\x01\x00\xa5", # Typical start of a TLS Client Hello + ], +) +def test_early_detection_of_invalid_request(data: bytes) -> None: + c = Connection(SERVER) + # Early detection should occur before even receiving a `\r\n` + c.receive_data(data) + with pytest.raises(RemoteProtocolError): + c.next_event() + + +@pytest.mark.parametrize( + "data", + [ + b"\x00", + b"\x20", + b"\x16\x03\x03\x00\x31", # Typical start of a TLS Server Hello + ], +) +def test_early_detection_of_invalid_response(data: bytes) -> None: + c = Connection(CLIENT) + # Early detection should occur before even receiving a `\r\n` + c.receive_data(data) + with pytest.raises(RemoteProtocolError): + c.next_event() + + +# This used to give different headers for HEAD and GET. +# The correct way to handle HEAD is to put whatever headers we *would* have +# put if it were a GET -- even though we know that for HEAD, those headers +# will be ignored. +def test_HEAD_framing_headers() -> None: + def setup(method: bytes, http_version: bytes) -> Connection: + c = Connection(SERVER) + c.receive_data( + method + b" / HTTP/" + http_version + b"\r\n" + b"Host: example.com\r\n\r\n" + ) + assert type(c.next_event()) is Request + assert type(c.next_event()) is EndOfMessage + return c + + for method in [b"GET", b"HEAD"]: + # No Content-Length, HTTP/1.1 peer, should use chunked + c = setup(method, b"1.1") + assert ( + c.send(Response(status_code=200, headers=[])) == b"HTTP/1.1 200 \r\n" # type: ignore[arg-type] + b"Transfer-Encoding: chunked\r\n\r\n" + ) + + # No Content-Length, HTTP/1.0 peer, frame with connection: close + c = setup(method, b"1.0") + assert ( + c.send(Response(status_code=200, headers=[])) == b"HTTP/1.1 200 \r\n" # type: ignore[arg-type] + b"Connection: close\r\n\r\n" + ) + + # Content-Length + Transfer-Encoding, TE wins + c = setup(method, b"1.1") + assert ( + c.send( + Response( + status_code=200, + headers=[ + ("Content-Length", "100"), + ("Transfer-Encoding", "chunked"), + ], + ) + ) + == b"HTTP/1.1 200 \r\n" + b"Transfer-Encoding: chunked\r\n\r\n" + ) + + +def test_special_exceptions_for_lost_connection_in_message_body() -> None: + c = Connection(SERVER) + c.receive_data( + b"POST / HTTP/1.1\r\n" b"Host: example.com\r\n" b"Content-Length: 100\r\n\r\n" + ) + assert type(c.next_event()) is Request + assert c.next_event() is NEED_DATA + c.receive_data(b"12345") + assert c.next_event() == Data(data=b"12345") + c.receive_data(b"") + with pytest.raises(RemoteProtocolError) as excinfo: + c.next_event() + assert "received 5 bytes" in str(excinfo.value) + assert "expected 100" in str(excinfo.value) + + c = Connection(SERVER) + c.receive_data( + b"POST / HTTP/1.1\r\n" + b"Host: example.com\r\n" + b"Transfer-Encoding: chunked\r\n\r\n" + ) + assert type(c.next_event()) is Request + assert c.next_event() is NEED_DATA + c.receive_data(b"8\r\n012345") + assert c.next_event().data == b"012345" # type: ignore + c.receive_data(b"") + with pytest.raises(RemoteProtocolError) as excinfo: + c.next_event() + assert "incomplete chunked read" in str(excinfo.value) diff --git a/venv/lib/python3.11/site-packages/h11/tests/test_events.py b/venv/lib/python3.11/site-packages/h11/tests/test_events.py new file mode 100644 index 0000000..bc6c313 --- /dev/null +++ b/venv/lib/python3.11/site-packages/h11/tests/test_events.py @@ -0,0 +1,150 @@ +from http import HTTPStatus + +import pytest + +from .. import _events +from .._events import ( + ConnectionClosed, + Data, + EndOfMessage, + Event, + InformationalResponse, + Request, + Response, +) +from .._util import LocalProtocolError + + +def test_events() -> None: + with pytest.raises(LocalProtocolError): + # Missing Host: + req = Request( + method="GET", target="/", headers=[("a", "b")], http_version="1.1" + ) + # But this is okay (HTTP/1.0) + req = Request(method="GET", target="/", headers=[("a", "b")], http_version="1.0") + # fields are normalized + assert req.method == b"GET" + assert req.target == b"/" + assert req.headers == [(b"a", b"b")] + assert req.http_version == b"1.0" + + # This is also okay -- has a Host (with weird capitalization, which is ok) + req = Request( + method="GET", + target="/", + headers=[("a", "b"), ("hOSt", "example.com")], + http_version="1.1", + ) + # we normalize header capitalization + assert req.headers == [(b"a", b"b"), (b"host", b"example.com")] + + # Multiple host is bad too + with pytest.raises(LocalProtocolError): + req = Request( + method="GET", + target="/", + headers=[("Host", "a"), ("Host", "a")], + http_version="1.1", + ) + # Even for HTTP/1.0 + with pytest.raises(LocalProtocolError): + req = Request( + method="GET", + target="/", + headers=[("Host", "a"), ("Host", "a")], + http_version="1.0", + ) + + # Header values are validated + for bad_char in "\x00\r\n\f\v": + with pytest.raises(LocalProtocolError): + req = Request( + method="GET", + target="/", + headers=[("Host", "a"), ("Foo", "asd" + bad_char)], + http_version="1.0", + ) + + # But for compatibility we allow non-whitespace control characters, even + # though they're forbidden by the spec. + Request( + method="GET", + target="/", + headers=[("Host", "a"), ("Foo", "asd\x01\x02\x7f")], + http_version="1.0", + ) + + # Request target is validated + for bad_byte in b"\x00\x20\x7f\xee": + target = bytearray(b"/") + target.append(bad_byte) + with pytest.raises(LocalProtocolError): + Request( + method="GET", target=target, headers=[("Host", "a")], http_version="1.1" + ) + + # Request method is validated + with pytest.raises(LocalProtocolError): + Request( + method="GET / HTTP/1.1", + target=target, + headers=[("Host", "a")], + http_version="1.1", + ) + + ir = InformationalResponse(status_code=100, headers=[("Host", "a")]) + assert ir.status_code == 100 + assert ir.headers == [(b"host", b"a")] + assert ir.http_version == b"1.1" + + with pytest.raises(LocalProtocolError): + InformationalResponse(status_code=200, headers=[("Host", "a")]) + + resp = Response(status_code=204, headers=[], http_version="1.0") # type: ignore[arg-type] + assert resp.status_code == 204 + assert resp.headers == [] + assert resp.http_version == b"1.0" + + with pytest.raises(LocalProtocolError): + resp = Response(status_code=100, headers=[], http_version="1.0") # type: ignore[arg-type] + + with pytest.raises(LocalProtocolError): + Response(status_code="100", headers=[], http_version="1.0") # type: ignore[arg-type] + + with pytest.raises(LocalProtocolError): + InformationalResponse(status_code=b"100", headers=[], http_version="1.0") # type: ignore[arg-type] + + d = Data(data=b"asdf") + assert d.data == b"asdf" + + eom = EndOfMessage() + assert eom.headers == [] + + cc = ConnectionClosed() + assert repr(cc) == "ConnectionClosed()" + + +def test_intenum_status_code() -> None: + # https://github.com/python-hyper/h11/issues/72 + + r = Response(status_code=HTTPStatus.OK, headers=[], http_version="1.0") # type: ignore[arg-type] + assert r.status_code == HTTPStatus.OK + assert type(r.status_code) is not type(HTTPStatus.OK) + assert type(r.status_code) is int + + +def test_header_casing() -> None: + r = Request( + method="GET", + target="/", + headers=[("Host", "example.org"), ("Connection", "keep-alive")], + http_version="1.1", + ) + assert len(r.headers) == 2 + assert r.headers[0] == (b"host", b"example.org") + assert r.headers == [(b"host", b"example.org"), (b"connection", b"keep-alive")] + assert r.headers.raw_items() == [ + (b"Host", b"example.org"), + (b"Connection", b"keep-alive"), + ] diff --git a/venv/lib/python3.11/site-packages/h11/tests/test_headers.py b/venv/lib/python3.11/site-packages/h11/tests/test_headers.py new file mode 100644 index 0000000..ba53d08 --- /dev/null +++ b/venv/lib/python3.11/site-packages/h11/tests/test_headers.py @@ -0,0 +1,157 @@ +import pytest + +from .._events import Request +from .._headers import ( + get_comma_header, + has_expect_100_continue, + Headers, + normalize_and_validate, + set_comma_header, +) +from .._util import LocalProtocolError + + +def test_normalize_and_validate() -> None: + assert normalize_and_validate([("foo", "bar")]) == [(b"foo", b"bar")] + assert normalize_and_validate([(b"foo", b"bar")]) == [(b"foo", b"bar")] + + # no leading/trailing whitespace in names + with pytest.raises(LocalProtocolError): + normalize_and_validate([(b"foo ", "bar")]) + with pytest.raises(LocalProtocolError): + normalize_and_validate([(b" foo", "bar")]) + + # no weird characters in names + with pytest.raises(LocalProtocolError) as excinfo: + normalize_and_validate([(b"foo bar", b"baz")]) + assert "foo bar" in str(excinfo.value) + with pytest.raises(LocalProtocolError): + normalize_and_validate([(b"foo\x00bar", b"baz")]) + # Not even 8-bit characters: + with pytest.raises(LocalProtocolError): + normalize_and_validate([(b"foo\xffbar", b"baz")]) + # And not even the control characters we allow in values: + with pytest.raises(LocalProtocolError): + normalize_and_validate([(b"foo\x01bar", b"baz")]) + + # no return or NUL characters in values + with pytest.raises(LocalProtocolError) as excinfo: + normalize_and_validate([("foo", "bar\rbaz")]) + assert "bar\\rbaz" in str(excinfo.value) + with pytest.raises(LocalProtocolError): + normalize_and_validate([("foo", "bar\nbaz")]) + with pytest.raises(LocalProtocolError): + normalize_and_validate([("foo", "bar\x00baz")]) + # no leading/trailing whitespace + with pytest.raises(LocalProtocolError): + normalize_and_validate([("foo", "barbaz ")]) + with pytest.raises(LocalProtocolError): + normalize_and_validate([("foo", " barbaz")]) + with pytest.raises(LocalProtocolError): + normalize_and_validate([("foo", "barbaz\t")]) + with pytest.raises(LocalProtocolError): + normalize_and_validate([("foo", "\tbarbaz")]) + + # content-length + assert normalize_and_validate([("Content-Length", "1")]) == [ + (b"content-length", b"1") + ] + with pytest.raises(LocalProtocolError): + normalize_and_validate([("Content-Length", "asdf")]) + with pytest.raises(LocalProtocolError): + normalize_and_validate([("Content-Length", "1x")]) + with pytest.raises(LocalProtocolError): + normalize_and_validate([("Content-Length", "1"), ("Content-Length", "2")]) + assert normalize_and_validate( + [("Content-Length", "0"), ("Content-Length", "0")] + ) == [(b"content-length", b"0")] + assert normalize_and_validate([("Content-Length", "0 , 0")]) == [ + (b"content-length", b"0") + ] + with pytest.raises(LocalProtocolError): + normalize_and_validate( + [("Content-Length", "1"), ("Content-Length", "1"), ("Content-Length", "2")] + ) + with pytest.raises(LocalProtocolError): + normalize_and_validate([("Content-Length", "1 , 1,2")]) + + # transfer-encoding + assert normalize_and_validate([("Transfer-Encoding", "chunked")]) == [ + (b"transfer-encoding", b"chunked") + ] + assert normalize_and_validate([("Transfer-Encoding", "cHuNkEd")]) == [ + (b"transfer-encoding", b"chunked") + ] + with pytest.raises(LocalProtocolError) as excinfo: + normalize_and_validate([("Transfer-Encoding", "gzip")]) + assert excinfo.value.error_status_hint == 501 # Not Implemented + with pytest.raises(LocalProtocolError) as excinfo: + normalize_and_validate( + [("Transfer-Encoding", "chunked"), ("Transfer-Encoding", "gzip")] + ) + assert excinfo.value.error_status_hint == 501 # Not Implemented + + +def test_get_set_comma_header() -> None: + headers = normalize_and_validate( + [ + ("Connection", "close"), + ("whatever", "something"), + ("connectiON", "fOo,, , BAR"), + ] + ) + + assert get_comma_header(headers, b"connection") == [b"close", b"foo", b"bar"] + + headers = set_comma_header(headers, b"newthing", ["a", "b"]) # type: ignore + + with pytest.raises(LocalProtocolError): + set_comma_header(headers, b"newthing", [" a", "b"]) # type: ignore + + assert headers == [ + (b"connection", b"close"), + (b"whatever", b"something"), + (b"connection", b"fOo,, , BAR"), + (b"newthing", b"a"), + (b"newthing", b"b"), + ] + + headers = set_comma_header(headers, b"whatever", ["different thing"]) # type: ignore + + assert headers == [ + (b"connection", b"close"), + (b"connection", b"fOo,, , BAR"), + (b"newthing", b"a"), + (b"newthing", b"b"), + (b"whatever", b"different thing"), + ] + + +def test_has_100_continue() -> None: + assert has_expect_100_continue( + Request( + method="GET", + target="/", + headers=[("Host", "example.com"), ("Expect", "100-continue")], + ) + ) + assert not has_expect_100_continue( + Request(method="GET", target="/", headers=[("Host", "example.com")]) + ) + # Case insensitive + assert has_expect_100_continue( + Request( + method="GET", + target="/", + headers=[("Host", "example.com"), ("Expect", "100-Continue")], + ) + ) + # Doesn't work in HTTP/1.0 + assert not has_expect_100_continue( + Request( + method="GET", + target="/", + headers=[("Host", "example.com"), ("Expect", "100-continue")], + http_version="1.0", + ) + ) diff --git a/venv/lib/python3.11/site-packages/h11/tests/test_helpers.py b/venv/lib/python3.11/site-packages/h11/tests/test_helpers.py new file mode 100644 index 0000000..c329c76 --- /dev/null +++ b/venv/lib/python3.11/site-packages/h11/tests/test_helpers.py @@ -0,0 +1,32 @@ +from .._events import ( + ConnectionClosed, + Data, + EndOfMessage, + Event, + InformationalResponse, + Request, + Response, +) +from .helpers import normalize_data_events + + +def test_normalize_data_events() -> None: + assert normalize_data_events( + [ + Data(data=bytearray(b"1")), + Data(data=b"2"), + Response(status_code=200, headers=[]), # type: ignore[arg-type] + Data(data=b"3"), + Data(data=b"4"), + EndOfMessage(), + Data(data=b"5"), + Data(data=b"6"), + Data(data=b"7"), + ] + ) == [ + Data(data=b"12"), + Response(status_code=200, headers=[]), # type: ignore[arg-type] + Data(data=b"34"), + EndOfMessage(), + Data(data=b"567"), + ] diff --git a/venv/lib/python3.11/site-packages/h11/tests/test_io.py b/venv/lib/python3.11/site-packages/h11/tests/test_io.py new file mode 100644 index 0000000..2b47c0e --- /dev/null +++ b/venv/lib/python3.11/site-packages/h11/tests/test_io.py @@ -0,0 +1,572 @@ +from typing import Any, Callable, Generator, List + +import pytest + +from .._events import ( + ConnectionClosed, + Data, + EndOfMessage, + Event, + InformationalResponse, + Request, + Response, +) +from .._headers import Headers, normalize_and_validate +from .._readers import ( + _obsolete_line_fold, + ChunkedReader, + ContentLengthReader, + Http10Reader, + READERS, +) +from .._receivebuffer import ReceiveBuffer +from .._state import ( + CLIENT, + CLOSED, + DONE, + IDLE, + MIGHT_SWITCH_PROTOCOL, + MUST_CLOSE, + SEND_BODY, + SEND_RESPONSE, + SERVER, + SWITCHED_PROTOCOL, +) +from .._util import LocalProtocolError +from .._writers import ( + ChunkedWriter, + ContentLengthWriter, + Http10Writer, + write_any_response, + write_headers, + write_request, + WRITERS, +) +from .helpers import normalize_data_events + +SIMPLE_CASES = [ + ( + (CLIENT, IDLE), + Request( + method="GET", + target="/a", + headers=[("Host", "foo"), ("Connection", "close")], + ), + b"GET /a HTTP/1.1\r\nHost: foo\r\nConnection: close\r\n\r\n", + ), + ( + (SERVER, SEND_RESPONSE), + Response(status_code=200, headers=[("Connection", "close")], reason=b"OK"), + b"HTTP/1.1 200 OK\r\nConnection: close\r\n\r\n", + ), + ( + (SERVER, SEND_RESPONSE), + Response(status_code=200, headers=[], reason=b"OK"), # type: ignore[arg-type] + b"HTTP/1.1 200 OK\r\n\r\n", + ), + ( + (SERVER, SEND_RESPONSE), + InformationalResponse( + status_code=101, headers=[("Upgrade", "websocket")], reason=b"Upgrade" + ), + b"HTTP/1.1 101 Upgrade\r\nUpgrade: websocket\r\n\r\n", + ), + ( + (SERVER, SEND_RESPONSE), + InformationalResponse(status_code=101, headers=[], reason=b"Upgrade"), # type: ignore[arg-type] + b"HTTP/1.1 101 Upgrade\r\n\r\n", + ), +] + + +def dowrite(writer: Callable[..., None], obj: Any) -> bytes: + got_list: List[bytes] = [] + writer(obj, got_list.append) + return b"".join(got_list) + + +def tw(writer: Any, obj: Any, expected: Any) -> None: + got = dowrite(writer, obj) + assert got == expected + + +def makebuf(data: bytes) -> ReceiveBuffer: + buf = ReceiveBuffer() + buf += data + return buf + + +def tr(reader: Any, data: bytes, expected: Any) -> None: + def check(got: Any) -> None: + assert got == expected + # Headers should always be returned as bytes, not e.g. bytearray + # https://github.com/python-hyper/wsproto/pull/54#issuecomment-377709478 + for name, value in getattr(got, "headers", []): + assert type(name) is bytes + assert type(value) is bytes + + # Simple: consume whole thing + buf = makebuf(data) + check(reader(buf)) + assert not buf + + # Incrementally growing buffer + buf = ReceiveBuffer() + for i in range(len(data)): + assert reader(buf) is None + buf += data[i : i + 1] + check(reader(buf)) + + # Trailing data + buf = makebuf(data) + buf += b"trailing" + check(reader(buf)) + assert bytes(buf) == b"trailing" + + +def test_writers_simple() -> None: + for ((role, state), event, binary) in SIMPLE_CASES: + tw(WRITERS[role, state], event, binary) + + +def test_readers_simple() -> None: + for ((role, state), event, binary) in SIMPLE_CASES: + tr(READERS[role, state], binary, event) + + +def test_writers_unusual() -> None: + # Simple test of the write_headers utility routine + tw( + write_headers, + normalize_and_validate([("foo", "bar"), ("baz", "quux")]), + b"foo: bar\r\nbaz: quux\r\n\r\n", + ) + tw(write_headers, Headers([]), b"\r\n") + + # We understand HTTP/1.0, but we don't speak it + with pytest.raises(LocalProtocolError): + tw( + write_request, + Request( + method="GET", + target="/", + headers=[("Host", "foo"), ("Connection", "close")], + http_version="1.0", + ), + None, + ) + with pytest.raises(LocalProtocolError): + tw( + write_any_response, + Response( + status_code=200, headers=[("Connection", "close")], http_version="1.0" + ), + None, + ) + + +def test_readers_unusual() -> None: + # Reading HTTP/1.0 + tr( + READERS[CLIENT, IDLE], + b"HEAD /foo HTTP/1.0\r\nSome: header\r\n\r\n", + Request( + method="HEAD", + target="/foo", + headers=[("Some", "header")], + http_version="1.0", + ), + ) + + # check no-headers, since it's only legal with HTTP/1.0 + tr( + READERS[CLIENT, IDLE], + b"HEAD /foo HTTP/1.0\r\n\r\n", + Request(method="HEAD", target="/foo", headers=[], http_version="1.0"), # type: ignore[arg-type] + ) + + tr( + READERS[SERVER, SEND_RESPONSE], + b"HTTP/1.0 200 OK\r\nSome: header\r\n\r\n", + Response( + status_code=200, + headers=[("Some", "header")], + http_version="1.0", + reason=b"OK", + ), + ) + + # single-character header values (actually disallowed by the ABNF in RFC + # 7230 -- this is a bug in the standard that we originally copied...) + tr( + READERS[SERVER, SEND_RESPONSE], + b"HTTP/1.0 200 OK\r\n" b"Foo: a a a a a \r\n\r\n", + Response( + status_code=200, + headers=[("Foo", "a a a a a")], + http_version="1.0", + reason=b"OK", + ), + ) + + # Empty headers -- also legal + tr( + READERS[SERVER, SEND_RESPONSE], + b"HTTP/1.0 200 OK\r\n" b"Foo:\r\n\r\n", + Response( + status_code=200, headers=[("Foo", "")], http_version="1.0", reason=b"OK" + ), + ) + + tr( + READERS[SERVER, SEND_RESPONSE], + b"HTTP/1.0 200 OK\r\n" b"Foo: \t \t \r\n\r\n", + Response( + status_code=200, headers=[("Foo", "")], http_version="1.0", reason=b"OK" + ), + ) + + # Tolerate broken servers that leave off the response code + tr( + READERS[SERVER, SEND_RESPONSE], + b"HTTP/1.0 200\r\n" b"Foo: bar\r\n\r\n", + Response( + status_code=200, headers=[("Foo", "bar")], http_version="1.0", reason=b"" + ), + ) + + # Tolerate headers line endings (\r\n and \n) + # \n\r\b between headers and body + tr( + READERS[SERVER, SEND_RESPONSE], + b"HTTP/1.1 200 OK\r\nSomeHeader: val\n\r\n", + Response( + status_code=200, + headers=[("SomeHeader", "val")], + http_version="1.1", + reason="OK", + ), + ) + + # delimited only with \n + tr( + READERS[SERVER, SEND_RESPONSE], + b"HTTP/1.1 200 OK\nSomeHeader1: val1\nSomeHeader2: val2\n\n", + Response( + status_code=200, + headers=[("SomeHeader1", "val1"), ("SomeHeader2", "val2")], + http_version="1.1", + reason="OK", + ), + ) + + # mixed \r\n and \n + tr( + READERS[SERVER, SEND_RESPONSE], + b"HTTP/1.1 200 OK\r\nSomeHeader1: val1\nSomeHeader2: val2\n\r\n", + Response( + status_code=200, + headers=[("SomeHeader1", "val1"), ("SomeHeader2", "val2")], + http_version="1.1", + reason="OK", + ), + ) + + # obsolete line folding + tr( + READERS[CLIENT, IDLE], + b"HEAD /foo HTTP/1.1\r\n" + b"Host: example.com\r\n" + b"Some: multi-line\r\n" + b" header\r\n" + b"\tnonsense\r\n" + b" \t \t\tI guess\r\n" + b"Connection: close\r\n" + b"More-nonsense: in the\r\n" + b" last header \r\n\r\n", + Request( + method="HEAD", + target="/foo", + headers=[ + ("Host", "example.com"), + ("Some", "multi-line header nonsense I guess"), + ("Connection", "close"), + ("More-nonsense", "in the last header"), + ], + ), + ) + + with pytest.raises(LocalProtocolError): + tr( + READERS[CLIENT, IDLE], + b"HEAD /foo HTTP/1.1\r\n" b" folded: line\r\n\r\n", + None, + ) + + with pytest.raises(LocalProtocolError): + tr( + READERS[CLIENT, IDLE], + b"HEAD /foo HTTP/1.1\r\n" b"foo : line\r\n\r\n", + None, + ) + with pytest.raises(LocalProtocolError): + tr( + READERS[CLIENT, IDLE], + b"HEAD /foo HTTP/1.1\r\n" b"foo\t: line\r\n\r\n", + None, + ) + with pytest.raises(LocalProtocolError): + tr( + READERS[CLIENT, IDLE], + b"HEAD /foo HTTP/1.1\r\n" b"foo\t: line\r\n\r\n", + None, + ) + with pytest.raises(LocalProtocolError): + tr(READERS[CLIENT, IDLE], b"HEAD /foo HTTP/1.1\r\n" b": line\r\n\r\n", None) + + +def test__obsolete_line_fold_bytes() -> None: + # _obsolete_line_fold has a defensive cast to bytearray, which is + # necessary to protect against O(n^2) behavior in case anyone ever passes + # in regular bytestrings... but right now we never pass in regular + # bytestrings. so this test just exists to get some coverage on that + # defensive cast. + assert list(_obsolete_line_fold([b"aaa", b"bbb", b" ccc", b"ddd"])) == [ + b"aaa", + bytearray(b"bbb ccc"), + b"ddd", + ] + + +def _run_reader_iter( + reader: Any, buf: bytes, do_eof: bool +) -> Generator[Any, None, None]: + while True: + event = reader(buf) + if event is None: + break + yield event + # body readers have undefined behavior after returning EndOfMessage, + # because this changes the state so they don't get called again + if type(event) is EndOfMessage: + break + if do_eof: + assert not buf + yield reader.read_eof() + + +def _run_reader(*args: Any) -> List[Event]: + events = list(_run_reader_iter(*args)) + return normalize_data_events(events) + + +def t_body_reader(thunk: Any, data: bytes, expected: Any, do_eof: bool = False) -> None: + # Simple: consume whole thing + print("Test 1") + buf = makebuf(data) + assert _run_reader(thunk(), buf, do_eof) == expected + + # Incrementally growing buffer + print("Test 2") + reader = thunk() + buf = ReceiveBuffer() + events = [] + for i in range(len(data)): + events += _run_reader(reader, buf, False) + buf += data[i : i + 1] + events += _run_reader(reader, buf, do_eof) + assert normalize_data_events(events) == expected + + is_complete = any(type(event) is EndOfMessage for event in expected) + if is_complete and not do_eof: + buf = makebuf(data + b"trailing") + assert _run_reader(thunk(), buf, False) == expected + + +def test_ContentLengthReader() -> None: + t_body_reader(lambda: ContentLengthReader(0), b"", [EndOfMessage()]) + + t_body_reader( + lambda: ContentLengthReader(10), + b"0123456789", + [Data(data=b"0123456789"), EndOfMessage()], + ) + + +def test_Http10Reader() -> None: + t_body_reader(Http10Reader, b"", [EndOfMessage()], do_eof=True) + t_body_reader(Http10Reader, b"asdf", [Data(data=b"asdf")], do_eof=False) + t_body_reader( + Http10Reader, b"asdf", [Data(data=b"asdf"), EndOfMessage()], do_eof=True + ) + + +def test_ChunkedReader() -> None: + t_body_reader(ChunkedReader, b"0\r\n\r\n", [EndOfMessage()]) + + t_body_reader( + ChunkedReader, + b"0\r\nSome: header\r\n\r\n", + [EndOfMessage(headers=[("Some", "header")])], + ) + + t_body_reader( + ChunkedReader, + b"5\r\n01234\r\n" + + b"10\r\n0123456789abcdef\r\n" + + b"0\r\n" + + b"Some: header\r\n\r\n", + [ + Data(data=b"012340123456789abcdef"), + EndOfMessage(headers=[("Some", "header")]), + ], + ) + + t_body_reader( + ChunkedReader, + b"5\r\n01234\r\n" + b"10\r\n0123456789abcdef\r\n" + b"0\r\n\r\n", + [Data(data=b"012340123456789abcdef"), EndOfMessage()], + ) + + # handles upper and lowercase hex + t_body_reader( + ChunkedReader, + b"aA\r\n" + b"x" * 0xAA + b"\r\n" + b"0\r\n\r\n", + [Data(data=b"x" * 0xAA), EndOfMessage()], + ) + + # refuses arbitrarily long chunk integers + with pytest.raises(LocalProtocolError): + # Technically this is legal HTTP/1.1, but we refuse to process chunk + # sizes that don't fit into 20 characters of hex + t_body_reader(ChunkedReader, b"9" * 100 + b"\r\nxxx", [Data(data=b"xxx")]) + + # refuses garbage in the chunk count + with pytest.raises(LocalProtocolError): + t_body_reader(ChunkedReader, b"10\x00\r\nxxx", None) + + # handles (and discards) "chunk extensions" omg wtf + t_body_reader( + ChunkedReader, + b"5; hello=there\r\n" + + b"xxxxx" + + b"\r\n" + + b'0; random="junk"; some=more; canbe=lonnnnngg\r\n\r\n', + [Data(data=b"xxxxx"), EndOfMessage()], + ) + + t_body_reader( + ChunkedReader, + b"5 \r\n01234\r\n" + b"0\r\n\r\n", + [Data(data=b"01234"), EndOfMessage()], + ) + + +def test_ContentLengthWriter() -> None: + w = ContentLengthWriter(5) + assert dowrite(w, Data(data=b"123")) == b"123" + assert dowrite(w, Data(data=b"45")) == b"45" + assert dowrite(w, EndOfMessage()) == b"" + + w = ContentLengthWriter(5) + with pytest.raises(LocalProtocolError): + dowrite(w, Data(data=b"123456")) + + w = ContentLengthWriter(5) + dowrite(w, Data(data=b"123")) + with pytest.raises(LocalProtocolError): + dowrite(w, Data(data=b"456")) + + w = ContentLengthWriter(5) + dowrite(w, Data(data=b"123")) + with pytest.raises(LocalProtocolError): + dowrite(w, EndOfMessage()) + + w = ContentLengthWriter(5) + dowrite(w, Data(data=b"123")) == b"123" + dowrite(w, Data(data=b"45")) == b"45" + with pytest.raises(LocalProtocolError): + dowrite(w, EndOfMessage(headers=[("Etag", "asdf")])) + + +def test_ChunkedWriter() -> None: + w = ChunkedWriter() + assert dowrite(w, Data(data=b"aaa")) == b"3\r\naaa\r\n" + assert dowrite(w, Data(data=b"a" * 20)) == b"14\r\n" + b"a" * 20 + b"\r\n" + + assert dowrite(w, Data(data=b"")) == b"" + + assert dowrite(w, EndOfMessage()) == b"0\r\n\r\n" + + assert ( + dowrite(w, EndOfMessage(headers=[("Etag", "asdf"), ("a", "b")])) + == b"0\r\nEtag: asdf\r\na: b\r\n\r\n" + ) + + +def test_Http10Writer() -> None: + w = Http10Writer() + assert dowrite(w, Data(data=b"1234")) == b"1234" + assert dowrite(w, EndOfMessage()) == b"" + + with pytest.raises(LocalProtocolError): + dowrite(w, EndOfMessage(headers=[("Etag", "asdf")])) + + +def test_reject_garbage_after_request_line() -> None: + with pytest.raises(LocalProtocolError): + tr(READERS[SERVER, SEND_RESPONSE], b"HTTP/1.0 200 OK\x00xxxx\r\n\r\n", None) + + +def test_reject_garbage_after_response_line() -> None: + with pytest.raises(LocalProtocolError): + tr( + READERS[CLIENT, IDLE], + b"HEAD /foo HTTP/1.1 xxxxxx\r\n" b"Host: a\r\n\r\n", + None, + ) + + +def test_reject_garbage_in_header_line() -> None: + with pytest.raises(LocalProtocolError): + tr( + READERS[CLIENT, IDLE], + b"HEAD /foo HTTP/1.1\r\n" b"Host: foo\x00bar\r\n\r\n", + None, + ) + + +def test_reject_non_vchar_in_path() -> None: + for bad_char in b"\x00\x20\x7f\xee": + message = bytearray(b"HEAD /") + message.append(bad_char) + message.extend(b" HTTP/1.1\r\nHost: foobar\r\n\r\n") + with pytest.raises(LocalProtocolError): + tr(READERS[CLIENT, IDLE], message, None) + + +# https://github.com/python-hyper/h11/issues/57 +def test_allow_some_garbage_in_cookies() -> None: + tr( + READERS[CLIENT, IDLE], + b"HEAD /foo HTTP/1.1\r\n" + b"Host: foo\r\n" + b"Set-Cookie: ___utmvafIumyLc=kUd\x01UpAt; path=/; Max-Age=900\r\n" + b"\r\n", + Request( + method="HEAD", + target="/foo", + headers=[ + ("Host", "foo"), + ("Set-Cookie", "___utmvafIumyLc=kUd\x01UpAt; path=/; Max-Age=900"), + ], + ), + ) + + +def test_host_comes_first() -> None: + tw( + write_headers, + normalize_and_validate([("foo", "bar"), ("Host", "example.com")]), + b"Host: example.com\r\nfoo: bar\r\n\r\n", + ) diff --git a/venv/lib/python3.11/site-packages/h11/tests/test_receivebuffer.py b/venv/lib/python3.11/site-packages/h11/tests/test_receivebuffer.py new file mode 100644 index 0000000..21a3870 --- /dev/null +++ b/venv/lib/python3.11/site-packages/h11/tests/test_receivebuffer.py @@ -0,0 +1,135 @@ +import re +from typing import Tuple + +import pytest + +from .._receivebuffer import ReceiveBuffer + + +def test_receivebuffer() -> None: + b = ReceiveBuffer() + assert not b + assert len(b) == 0 + assert bytes(b) == b"" + + b += b"123" + assert b + assert len(b) == 3 + assert bytes(b) == b"123" + + assert bytes(b) == b"123" + + assert b.maybe_extract_at_most(2) == b"12" + assert b + assert len(b) == 1 + assert bytes(b) == b"3" + + assert bytes(b) == b"3" + + assert b.maybe_extract_at_most(10) == b"3" + assert bytes(b) == b"" + + assert b.maybe_extract_at_most(10) is None + assert not b + + ################################################################ + # maybe_extract_until_next + ################################################################ + + b += b"123\n456\r\n789\r\n" + + assert b.maybe_extract_next_line() == b"123\n456\r\n" + assert bytes(b) == b"789\r\n" + + assert b.maybe_extract_next_line() == b"789\r\n" + assert bytes(b) == b"" + + b += b"12\r" + assert b.maybe_extract_next_line() is None + assert bytes(b) == b"12\r" + + b += b"345\n\r" + assert b.maybe_extract_next_line() is None + assert bytes(b) == b"12\r345\n\r" + + # here we stopped at the middle of b"\r\n" delimiter + + b += b"\n6789aaa123\r\n" + assert b.maybe_extract_next_line() == b"12\r345\n\r\n" + assert b.maybe_extract_next_line() == b"6789aaa123\r\n" + assert b.maybe_extract_next_line() is None + assert bytes(b) == b"" + + ################################################################ + # maybe_extract_lines + ################################################################ + + b += b"123\r\na: b\r\nfoo:bar\r\n\r\ntrailing" + lines = b.maybe_extract_lines() + assert lines == [b"123", b"a: b", b"foo:bar"] + assert bytes(b) == b"trailing" + + assert b.maybe_extract_lines() is None + + b += b"\r\n\r" + assert b.maybe_extract_lines() is None + + assert b.maybe_extract_at_most(100) == b"trailing\r\n\r" + assert not b + + # Empty body case (as happens at the end of chunked encoding if there are + # no trailing headers, e.g.) + b += b"\r\ntrailing" + assert b.maybe_extract_lines() == [] + assert bytes(b) == b"trailing" + + +@pytest.mark.parametrize( + "data", + [ + pytest.param( + ( + b"HTTP/1.1 200 OK\r\n", + b"Content-type: text/plain\r\n", + b"Connection: close\r\n", + b"\r\n", + b"Some body", + ), + id="with_crlf_delimiter", + ), + pytest.param( + ( + b"HTTP/1.1 200 OK\n", + b"Content-type: text/plain\n", + b"Connection: close\n", + b"\n", + b"Some body", + ), + id="with_lf_only_delimiter", + ), + pytest.param( + ( + b"HTTP/1.1 200 OK\n", + b"Content-type: text/plain\r\n", + b"Connection: close\n", + b"\n", + b"Some body", + ), + id="with_mixed_crlf_and_lf", + ), + ], +) +def test_receivebuffer_for_invalid_delimiter(data: Tuple[bytes]) -> None: + b = ReceiveBuffer() + + for line in data: + b += line + + lines = b.maybe_extract_lines() + + assert lines == [ + b"HTTP/1.1 200 OK", + b"Content-type: text/plain", + b"Connection: close", + ] + assert bytes(b) == b"Some body" diff --git a/venv/lib/python3.11/site-packages/h11/tests/test_state.py b/venv/lib/python3.11/site-packages/h11/tests/test_state.py new file mode 100644 index 0000000..bc974e6 --- /dev/null +++ b/venv/lib/python3.11/site-packages/h11/tests/test_state.py @@ -0,0 +1,271 @@ +import pytest + +from .._events import ( + ConnectionClosed, + Data, + EndOfMessage, + Event, + InformationalResponse, + Request, + Response, +) +from .._state import ( + _SWITCH_CONNECT, + _SWITCH_UPGRADE, + CLIENT, + CLOSED, + ConnectionState, + DONE, + IDLE, + MIGHT_SWITCH_PROTOCOL, + MUST_CLOSE, + SEND_BODY, + SEND_RESPONSE, + SERVER, + SWITCHED_PROTOCOL, +) +from .._util import LocalProtocolError + + +def test_ConnectionState() -> None: + cs = ConnectionState() + + # Basic event-triggered transitions + + assert cs.states == {CLIENT: IDLE, SERVER: IDLE} + + cs.process_event(CLIENT, Request) + # The SERVER-Request special case: + assert cs.states == {CLIENT: SEND_BODY, SERVER: SEND_RESPONSE} + + # Illegal transitions raise an error and nothing happens + with pytest.raises(LocalProtocolError): + cs.process_event(CLIENT, Request) + assert cs.states == {CLIENT: SEND_BODY, SERVER: SEND_RESPONSE} + + cs.process_event(SERVER, InformationalResponse) + assert cs.states == {CLIENT: SEND_BODY, SERVER: SEND_RESPONSE} + + cs.process_event(SERVER, Response) + assert cs.states == {CLIENT: SEND_BODY, SERVER: SEND_BODY} + + cs.process_event(CLIENT, EndOfMessage) + cs.process_event(SERVER, EndOfMessage) + assert cs.states == {CLIENT: DONE, SERVER: DONE} + + # State-triggered transition + + cs.process_event(SERVER, ConnectionClosed) + assert cs.states == {CLIENT: MUST_CLOSE, SERVER: CLOSED} + + +def test_ConnectionState_keep_alive() -> None: + # keep_alive = False + cs = ConnectionState() + cs.process_event(CLIENT, Request) + cs.process_keep_alive_disabled() + cs.process_event(CLIENT, EndOfMessage) + assert cs.states == {CLIENT: MUST_CLOSE, SERVER: SEND_RESPONSE} + + cs.process_event(SERVER, Response) + cs.process_event(SERVER, EndOfMessage) + assert cs.states == {CLIENT: MUST_CLOSE, SERVER: MUST_CLOSE} + + +def test_ConnectionState_keep_alive_in_DONE() -> None: + # Check that if keep_alive is disabled when the CLIENT is already in DONE, + # then this is sufficient to immediately trigger the DONE -> MUST_CLOSE + # transition + cs = ConnectionState() + cs.process_event(CLIENT, Request) + cs.process_event(CLIENT, EndOfMessage) + assert cs.states[CLIENT] is DONE + cs.process_keep_alive_disabled() + assert cs.states[CLIENT] is MUST_CLOSE + + +def test_ConnectionState_switch_denied() -> None: + for switch_type in (_SWITCH_CONNECT, _SWITCH_UPGRADE): + for deny_early in (True, False): + cs = ConnectionState() + cs.process_client_switch_proposal(switch_type) + cs.process_event(CLIENT, Request) + cs.process_event(CLIENT, Data) + assert cs.states == {CLIENT: SEND_BODY, SERVER: SEND_RESPONSE} + + assert switch_type in cs.pending_switch_proposals + + if deny_early: + # before client reaches DONE + cs.process_event(SERVER, Response) + assert not cs.pending_switch_proposals + + cs.process_event(CLIENT, EndOfMessage) + + if deny_early: + assert cs.states == {CLIENT: DONE, SERVER: SEND_BODY} + else: + assert cs.states == { + CLIENT: MIGHT_SWITCH_PROTOCOL, + SERVER: SEND_RESPONSE, + } + + cs.process_event(SERVER, InformationalResponse) + assert cs.states == { + CLIENT: MIGHT_SWITCH_PROTOCOL, + SERVER: SEND_RESPONSE, + } + + cs.process_event(SERVER, Response) + assert cs.states == {CLIENT: DONE, SERVER: SEND_BODY} + assert not cs.pending_switch_proposals + + +_response_type_for_switch = { + _SWITCH_UPGRADE: InformationalResponse, + _SWITCH_CONNECT: Response, + None: Response, +} + + +def test_ConnectionState_protocol_switch_accepted() -> None: + for switch_event in [_SWITCH_UPGRADE, _SWITCH_CONNECT]: + cs = ConnectionState() + cs.process_client_switch_proposal(switch_event) + cs.process_event(CLIENT, Request) + cs.process_event(CLIENT, Data) + assert cs.states == {CLIENT: SEND_BODY, SERVER: SEND_RESPONSE} + + cs.process_event(CLIENT, EndOfMessage) + assert cs.states == {CLIENT: MIGHT_SWITCH_PROTOCOL, SERVER: SEND_RESPONSE} + + cs.process_event(SERVER, InformationalResponse) + assert cs.states == {CLIENT: MIGHT_SWITCH_PROTOCOL, SERVER: SEND_RESPONSE} + + cs.process_event(SERVER, _response_type_for_switch[switch_event], switch_event) + assert cs.states == {CLIENT: SWITCHED_PROTOCOL, SERVER: SWITCHED_PROTOCOL} + + +def test_ConnectionState_double_protocol_switch() -> None: + # CONNECT + Upgrade is legal! Very silly, but legal. So we support + # it. Because sometimes doing the silly thing is easier than not. + for server_switch in [None, _SWITCH_UPGRADE, _SWITCH_CONNECT]: + cs = ConnectionState() + cs.process_client_switch_proposal(_SWITCH_UPGRADE) + cs.process_client_switch_proposal(_SWITCH_CONNECT) + cs.process_event(CLIENT, Request) + cs.process_event(CLIENT, EndOfMessage) + assert cs.states == {CLIENT: MIGHT_SWITCH_PROTOCOL, SERVER: SEND_RESPONSE} + cs.process_event( + SERVER, _response_type_for_switch[server_switch], server_switch + ) + if server_switch is None: + assert cs.states == {CLIENT: DONE, SERVER: SEND_BODY} + else: + assert cs.states == {CLIENT: SWITCHED_PROTOCOL, SERVER: SWITCHED_PROTOCOL} + + +def test_ConnectionState_inconsistent_protocol_switch() -> None: + for client_switches, server_switch in [ + ([], _SWITCH_CONNECT), + ([], _SWITCH_UPGRADE), + ([_SWITCH_UPGRADE], _SWITCH_CONNECT), + ([_SWITCH_CONNECT], _SWITCH_UPGRADE), + ]: + cs = ConnectionState() + for client_switch in client_switches: # type: ignore[attr-defined] + cs.process_client_switch_proposal(client_switch) + cs.process_event(CLIENT, Request) + with pytest.raises(LocalProtocolError): + cs.process_event(SERVER, Response, server_switch) + + +def test_ConnectionState_keepalive_protocol_switch_interaction() -> None: + # keep_alive=False + pending_switch_proposals + cs = ConnectionState() + cs.process_client_switch_proposal(_SWITCH_UPGRADE) + cs.process_event(CLIENT, Request) + cs.process_keep_alive_disabled() + cs.process_event(CLIENT, Data) + assert cs.states == {CLIENT: SEND_BODY, SERVER: SEND_RESPONSE} + + # the protocol switch "wins" + cs.process_event(CLIENT, EndOfMessage) + assert cs.states == {CLIENT: MIGHT_SWITCH_PROTOCOL, SERVER: SEND_RESPONSE} + + # but when the server denies the request, keep_alive comes back into play + cs.process_event(SERVER, Response) + assert cs.states == {CLIENT: MUST_CLOSE, SERVER: SEND_BODY} + + +def test_ConnectionState_reuse() -> None: + cs = ConnectionState() + + with pytest.raises(LocalProtocolError): + cs.start_next_cycle() + + cs.process_event(CLIENT, Request) + cs.process_event(CLIENT, EndOfMessage) + + with pytest.raises(LocalProtocolError): + cs.start_next_cycle() + + cs.process_event(SERVER, Response) + cs.process_event(SERVER, EndOfMessage) + + cs.start_next_cycle() + assert cs.states == {CLIENT: IDLE, SERVER: IDLE} + + # No keepalive + + cs.process_event(CLIENT, Request) + cs.process_keep_alive_disabled() + cs.process_event(CLIENT, EndOfMessage) + cs.process_event(SERVER, Response) + cs.process_event(SERVER, EndOfMessage) + + with pytest.raises(LocalProtocolError): + cs.start_next_cycle() + + # One side closed + + cs = ConnectionState() + cs.process_event(CLIENT, Request) + cs.process_event(CLIENT, EndOfMessage) + cs.process_event(CLIENT, ConnectionClosed) + cs.process_event(SERVER, Response) + cs.process_event(SERVER, EndOfMessage) + + with pytest.raises(LocalProtocolError): + cs.start_next_cycle() + + # Succesful protocol switch + + cs = ConnectionState() + cs.process_client_switch_proposal(_SWITCH_UPGRADE) + cs.process_event(CLIENT, Request) + cs.process_event(CLIENT, EndOfMessage) + cs.process_event(SERVER, InformationalResponse, _SWITCH_UPGRADE) + + with pytest.raises(LocalProtocolError): + cs.start_next_cycle() + + # Failed protocol switch + + cs = ConnectionState() + cs.process_client_switch_proposal(_SWITCH_UPGRADE) + cs.process_event(CLIENT, Request) + cs.process_event(CLIENT, EndOfMessage) + cs.process_event(SERVER, Response) + cs.process_event(SERVER, EndOfMessage) + + cs.start_next_cycle() + assert cs.states == {CLIENT: IDLE, SERVER: IDLE} + + +def test_server_request_is_illegal() -> None: + # There used to be a bug in how we handled the Request special case that + # made this allowed... + cs = ConnectionState() + with pytest.raises(LocalProtocolError): + cs.process_event(SERVER, Request) diff --git a/venv/lib/python3.11/site-packages/h11/tests/test_util.py b/venv/lib/python3.11/site-packages/h11/tests/test_util.py new file mode 100644 index 0000000..79bc095 --- /dev/null +++ b/venv/lib/python3.11/site-packages/h11/tests/test_util.py @@ -0,0 +1,112 @@ +import re +import sys +import traceback +from typing import NoReturn + +import pytest + +from .._util import ( + bytesify, + LocalProtocolError, + ProtocolError, + RemoteProtocolError, + Sentinel, + validate, +) + + +def test_ProtocolError() -> None: + with pytest.raises(TypeError): + ProtocolError("abstract base class") + + +def test_LocalProtocolError() -> None: + try: + raise LocalProtocolError("foo") + except LocalProtocolError as e: + assert str(e) == "foo" + assert e.error_status_hint == 400 + + try: + raise LocalProtocolError("foo", error_status_hint=418) + except LocalProtocolError as e: + assert str(e) == "foo" + assert e.error_status_hint == 418 + + def thunk() -> NoReturn: + raise LocalProtocolError("a", error_status_hint=420) + + try: + try: + thunk() + except LocalProtocolError as exc1: + orig_traceback = "".join(traceback.format_tb(sys.exc_info()[2])) + exc1._reraise_as_remote_protocol_error() + except RemoteProtocolError as exc2: + assert type(exc2) is RemoteProtocolError + assert exc2.args == ("a",) + assert exc2.error_status_hint == 420 + new_traceback = "".join(traceback.format_tb(sys.exc_info()[2])) + assert new_traceback.endswith(orig_traceback) + + +def test_validate() -> None: + my_re = re.compile(rb"(?P<group1>[0-9]+)\.(?P<group2>[0-9]+)") + with pytest.raises(LocalProtocolError): + validate(my_re, b"0.") + + groups = validate(my_re, b"0.1") + assert groups == {"group1": b"0", "group2": b"1"} + + # successful partial matches are an error - must match whole string + with pytest.raises(LocalProtocolError): + validate(my_re, b"0.1xx") + with pytest.raises(LocalProtocolError): + validate(my_re, b"0.1\n") + + +def test_validate_formatting() -> None: + my_re = re.compile(rb"foo") + + with pytest.raises(LocalProtocolError) as excinfo: + validate(my_re, b"", "oops") + assert "oops" in str(excinfo.value) + + with pytest.raises(LocalProtocolError) as excinfo: + validate(my_re, b"", "oops {}") + assert "oops {}" in str(excinfo.value) + + with pytest.raises(LocalProtocolError) as excinfo: + validate(my_re, b"", "oops {} xx", 10) + assert "oops 10 xx" in str(excinfo.value) + + +def test_make_sentinel() -> None: + class S(Sentinel, metaclass=Sentinel): + pass + + assert repr(S) == "S" + assert S == S + assert type(S).__name__ == "S" + assert S in {S} + assert type(S) is S + + class S2(Sentinel, metaclass=Sentinel): + pass + + assert repr(S2) == "S2" + assert S != S2 + assert S not in {S2} + assert type(S) is not type(S2) + + +def test_bytesify() -> None: + assert bytesify(b"123") == b"123" + assert bytesify(bytearray(b"123")) == b"123" + assert bytesify("123") == b"123" + + with pytest.raises(UnicodeEncodeError): + bytesify("\u1234") + + with pytest.raises(TypeError): + bytesify(10) |