forked from MirrorHub/synapse
00b24aa545
This modifies the configuration of structured logging to be usable from the standard Python logging configuration. This also separates the formatting of logs from the transport allowing JSON logs to files or standard logs to sockets.
580 lines
17 KiB
Python
580 lines
17 KiB
Python
import json
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import logging
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from collections import deque
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from io import SEEK_END, BytesIO
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from typing import Callable
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import attr
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from typing_extensions import Deque
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from zope.interface import implementer
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from twisted.internet import address, threads, udp
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from twisted.internet._resolver import SimpleResolverComplexifier
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from twisted.internet.defer import Deferred, fail, succeed
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from twisted.internet.error import DNSLookupError
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from twisted.internet.interfaces import (
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IReactorPluggableNameResolver,
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IReactorTCP,
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IResolverSimple,
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)
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from twisted.python.failure import Failure
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from twisted.test.proto_helpers import AccumulatingProtocol, MemoryReactorClock
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from twisted.web.http import unquote
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from twisted.web.http_headers import Headers
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from twisted.web.server import Site
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from synapse.http.site import SynapseRequest
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from synapse.util import Clock
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from tests.utils import setup_test_homeserver as _sth
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logger = logging.getLogger(__name__)
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class TimedOutException(Exception):
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"""
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A web query timed out.
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"""
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@attr.s
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class FakeChannel:
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"""
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A fake Twisted Web Channel (the part that interfaces with the
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wire).
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"""
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site = attr.ib(type=Site)
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_reactor = attr.ib()
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result = attr.ib(default=attr.Factory(dict))
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_producer = None
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@property
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def json_body(self):
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if not self.result:
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raise Exception("No result yet.")
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return json.loads(self.result["body"].decode("utf8"))
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@property
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def code(self):
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if not self.result:
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raise Exception("No result yet.")
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return int(self.result["code"])
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@property
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def headers(self):
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if not self.result:
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raise Exception("No result yet.")
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h = Headers()
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for i in self.result["headers"]:
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h.addRawHeader(*i)
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return h
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def writeHeaders(self, version, code, reason, headers):
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self.result["version"] = version
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self.result["code"] = code
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self.result["reason"] = reason
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self.result["headers"] = headers
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def write(self, content):
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assert isinstance(content, bytes), "Should be bytes! " + repr(content)
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if "body" not in self.result:
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self.result["body"] = b""
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self.result["body"] += content
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def registerProducer(self, producer, streaming):
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self._producer = producer
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self.producerStreaming = streaming
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def _produce():
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if self._producer:
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self._producer.resumeProducing()
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self._reactor.callLater(0.1, _produce)
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if not streaming:
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self._reactor.callLater(0.0, _produce)
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def unregisterProducer(self):
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if self._producer is None:
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return
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self._producer = None
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def requestDone(self, _self):
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self.result["done"] = True
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def getPeer(self):
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# We give an address so that getClientIP returns a non null entry,
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# causing us to record the MAU
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return address.IPv4Address("TCP", "127.0.0.1", 3423)
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def getHost(self):
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return None
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@property
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def transport(self):
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return self
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class FakeSite:
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"""
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A fake Twisted Web Site, with mocks of the extra things that
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Synapse adds.
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"""
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server_version_string = b"1"
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site_tag = "test"
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access_logger = logging.getLogger("synapse.access.http.fake")
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def make_request(
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reactor,
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method,
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path,
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content=b"",
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access_token=None,
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request=SynapseRequest,
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shorthand=True,
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federation_auth_origin=None,
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content_is_form=False,
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):
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"""
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Make a web request using the given method and path, feed it the
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content, and return the Request and the Channel underneath.
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Args:
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method (bytes/unicode): The HTTP request method ("verb").
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path (bytes/unicode): The HTTP path, suitably URL encoded (e.g.
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escaped UTF-8 & spaces and such).
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content (bytes or dict): The body of the request. JSON-encoded, if
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a dict.
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shorthand: Whether to try and be helpful and prefix the given URL
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with the usual REST API path, if it doesn't contain it.
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federation_auth_origin (bytes|None): if set to not-None, we will add a fake
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Authorization header pretenting to be the given server name.
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content_is_form: Whether the content is URL encoded form data. Adds the
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'Content-Type': 'application/x-www-form-urlencoded' header.
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Returns:
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Tuple[synapse.http.site.SynapseRequest, channel]
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"""
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if not isinstance(method, bytes):
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method = method.encode("ascii")
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if not isinstance(path, bytes):
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path = path.encode("ascii")
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# Decorate it to be the full path, if we're using shorthand
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if (
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shorthand
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and not path.startswith(b"/_matrix")
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and not path.startswith(b"/_synapse")
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):
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path = b"/_matrix/client/r0/" + path
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path = path.replace(b"//", b"/")
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if not path.startswith(b"/"):
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path = b"/" + path
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if isinstance(content, str):
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content = content.encode("utf8")
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site = FakeSite()
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channel = FakeChannel(site, reactor)
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req = request(channel)
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req.process = lambda: b""
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req.content = BytesIO(content)
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# Twisted expects to be at the end of the content when parsing the request.
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req.content.seek(SEEK_END)
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req.postpath = list(map(unquote, path[1:].split(b"/")))
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if access_token:
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req.requestHeaders.addRawHeader(
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b"Authorization", b"Bearer " + access_token.encode("ascii")
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)
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if federation_auth_origin is not None:
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req.requestHeaders.addRawHeader(
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b"Authorization",
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b"X-Matrix origin=%s,key=,sig=" % (federation_auth_origin,),
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)
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if content:
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if content_is_form:
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req.requestHeaders.addRawHeader(
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b"Content-Type", b"application/x-www-form-urlencoded"
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)
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else:
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# Assume the body is JSON
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req.requestHeaders.addRawHeader(b"Content-Type", b"application/json")
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req.requestReceived(method, path, b"1.1")
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return req, channel
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def wait_until_result(clock, request, timeout=100):
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"""
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Wait until the request is finished.
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"""
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clock.run()
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x = 0
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while not request.finished:
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# If there's a producer, tell it to resume producing so we get content
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if request._channel._producer:
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request._channel._producer.resumeProducing()
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x += 1
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if x > timeout:
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raise TimedOutException("Timed out waiting for request to finish.")
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clock.advance(0.1)
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def render(request, resource, clock):
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request.render(resource)
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wait_until_result(clock, request)
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@implementer(IReactorPluggableNameResolver)
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class ThreadedMemoryReactorClock(MemoryReactorClock):
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"""
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A MemoryReactorClock that supports callFromThread.
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"""
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def __init__(self):
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self.threadpool = ThreadPool(self)
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self._tcp_callbacks = {}
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self._udp = []
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lookups = self.lookups = {}
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self._thread_callbacks = deque() # type: Deque[Callable[[], None]]()
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@implementer(IResolverSimple)
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class FakeResolver:
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def getHostByName(self, name, timeout=None):
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if name not in lookups:
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return fail(DNSLookupError("OH NO: unknown %s" % (name,)))
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return succeed(lookups[name])
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self.nameResolver = SimpleResolverComplexifier(FakeResolver())
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super().__init__()
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def listenUDP(self, port, protocol, interface="", maxPacketSize=8196):
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p = udp.Port(port, protocol, interface, maxPacketSize, self)
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p.startListening()
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self._udp.append(p)
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return p
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def callFromThread(self, callback, *args, **kwargs):
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"""
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Make the callback fire in the next reactor iteration.
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"""
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cb = lambda: callback(*args, **kwargs)
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# it's not safe to call callLater() here, so we append the callback to a
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# separate queue.
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self._thread_callbacks.append(cb)
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def getThreadPool(self):
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return self.threadpool
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def add_tcp_client_callback(self, host, port, callback):
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"""Add a callback that will be invoked when we receive a connection
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attempt to the given IP/port using `connectTCP`.
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Note that the callback gets run before we return the connection to the
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client, which means callbacks cannot block while waiting for writes.
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"""
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self._tcp_callbacks[(host, port)] = callback
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def connectTCP(self, host, port, factory, timeout=30, bindAddress=None):
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"""Fake L{IReactorTCP.connectTCP}.
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"""
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conn = super().connectTCP(
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host, port, factory, timeout=timeout, bindAddress=None
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)
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callback = self._tcp_callbacks.get((host, port))
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if callback:
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callback()
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return conn
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def advance(self, amount):
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# first advance our reactor's time, and run any "callLater" callbacks that
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# makes ready
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super().advance(amount)
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# now run any "callFromThread" callbacks
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while True:
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try:
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callback = self._thread_callbacks.popleft()
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except IndexError:
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break
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callback()
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# check for more "callLater" callbacks added by the thread callback
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# This isn't required in a regular reactor, but it ends up meaning that
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# our database queries can complete in a single call to `advance` [1] which
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# simplifies tests.
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#
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# [1]: we replace the threadpool backing the db connection pool with a
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# mock ThreadPool which doesn't really use threads; but we still use
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# reactor.callFromThread to feed results back from the db functions to the
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# main thread.
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super().advance(0)
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class ThreadPool:
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"""
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Threadless thread pool.
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"""
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def __init__(self, reactor):
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self._reactor = reactor
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def start(self):
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pass
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def stop(self):
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pass
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def callInThreadWithCallback(self, onResult, function, *args, **kwargs):
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def _(res):
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if isinstance(res, Failure):
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onResult(False, res)
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else:
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onResult(True, res)
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d = Deferred()
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d.addCallback(lambda x: function(*args, **kwargs))
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d.addBoth(_)
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self._reactor.callLater(0, d.callback, True)
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return d
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def setup_test_homeserver(cleanup_func, *args, **kwargs):
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"""
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Set up a synchronous test server, driven by the reactor used by
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the homeserver.
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"""
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server = _sth(cleanup_func, *args, **kwargs)
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# Make the thread pool synchronous.
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clock = server.get_clock()
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for database in server.get_datastores().databases:
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pool = database._db_pool
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def runWithConnection(func, *args, **kwargs):
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return threads.deferToThreadPool(
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pool._reactor,
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pool.threadpool,
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pool._runWithConnection,
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func,
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*args,
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**kwargs,
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)
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def runInteraction(interaction, *args, **kwargs):
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return threads.deferToThreadPool(
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pool._reactor,
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pool.threadpool,
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pool._runInteraction,
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interaction,
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*args,
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**kwargs,
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)
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pool.runWithConnection = runWithConnection
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pool.runInteraction = runInteraction
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pool.threadpool = ThreadPool(clock._reactor)
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pool.running = True
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# We've just changed the Databases to run DB transactions on the same
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# thread, so we need to disable the dedicated thread behaviour.
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server.get_datastores().main.USE_DEDICATED_DB_THREADS_FOR_EVENT_FETCHING = False
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return server
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def get_clock():
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clock = ThreadedMemoryReactorClock()
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hs_clock = Clock(clock)
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return clock, hs_clock
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@attr.s(cmp=False)
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class FakeTransport:
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"""
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A twisted.internet.interfaces.ITransport implementation which sends all its data
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straight into an IProtocol object: it exists to connect two IProtocols together.
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To use it, instantiate it with the receiving IProtocol, and then pass it to the
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sending IProtocol's makeConnection method:
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server = HTTPChannel()
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client.makeConnection(FakeTransport(server, self.reactor))
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If you want bidirectional communication, you'll need two instances.
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"""
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other = attr.ib()
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"""The Protocol object which will receive any data written to this transport.
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:type: twisted.internet.interfaces.IProtocol
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"""
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_reactor = attr.ib()
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"""Test reactor
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:type: twisted.internet.interfaces.IReactorTime
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"""
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_protocol = attr.ib(default=None)
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"""The Protocol which is producing data for this transport. Optional, but if set
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will get called back for connectionLost() notifications etc.
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"""
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disconnecting = False
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disconnected = False
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connected = True
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buffer = attr.ib(default=b"")
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producer = attr.ib(default=None)
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autoflush = attr.ib(default=True)
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def getPeer(self):
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return None
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def getHost(self):
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return None
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def loseConnection(self, reason=None):
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if not self.disconnecting:
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logger.info("FakeTransport: loseConnection(%s)", reason)
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self.disconnecting = True
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if self._protocol:
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self._protocol.connectionLost(reason)
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# if we still have data to write, delay until that is done
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if self.buffer:
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logger.info(
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"FakeTransport: Delaying disconnect until buffer is flushed"
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)
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else:
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self.connected = False
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self.disconnected = True
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def abortConnection(self):
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logger.info("FakeTransport: abortConnection()")
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if not self.disconnecting:
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self.disconnecting = True
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if self._protocol:
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self._protocol.connectionLost(None)
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self.disconnected = True
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def pauseProducing(self):
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if not self.producer:
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return
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self.producer.pauseProducing()
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def resumeProducing(self):
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if not self.producer:
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return
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self.producer.resumeProducing()
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def unregisterProducer(self):
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if not self.producer:
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return
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self.producer = None
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def registerProducer(self, producer, streaming):
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self.producer = producer
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self.producerStreaming = streaming
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def _produce():
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d = self.producer.resumeProducing()
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d.addCallback(lambda x: self._reactor.callLater(0.1, _produce))
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if not streaming:
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self._reactor.callLater(0.0, _produce)
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def write(self, byt):
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if self.disconnecting:
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raise Exception("Writing to disconnecting FakeTransport")
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self.buffer = self.buffer + byt
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# always actually do the write asynchronously. Some protocols (notably the
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# TLSMemoryBIOProtocol) get very confused if a read comes back while they are
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# still doing a write. Doing a callLater here breaks the cycle.
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if self.autoflush:
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self._reactor.callLater(0.0, self.flush)
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def writeSequence(self, seq):
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for x in seq:
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self.write(x)
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def flush(self, maxbytes=None):
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if not self.buffer:
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# nothing to do. Don't write empty buffers: it upsets the
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# TLSMemoryBIOProtocol
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return
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if self.disconnected:
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return
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if getattr(self.other, "transport") is None:
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# the other has no transport yet; reschedule
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if self.autoflush:
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self._reactor.callLater(0.0, self.flush)
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return
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if maxbytes is not None:
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to_write = self.buffer[:maxbytes]
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else:
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to_write = self.buffer
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logger.info("%s->%s: %s", self._protocol, self.other, to_write)
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try:
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self.other.dataReceived(to_write)
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except Exception as e:
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logger.exception("Exception writing to protocol: %s", e)
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return
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self.buffer = self.buffer[len(to_write) :]
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if self.buffer and self.autoflush:
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self._reactor.callLater(0.0, self.flush)
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if not self.buffer and self.disconnecting:
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logger.info("FakeTransport: Buffer now empty, completing disconnect")
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self.disconnected = True
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def connect_client(reactor: IReactorTCP, client_id: int) -> AccumulatingProtocol:
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"""
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Connect a client to a fake TCP transport.
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Args:
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reactor
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factory: The connecting factory to build.
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"""
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factory = reactor.tcpClients.pop(client_id)[2]
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client = factory.buildProtocol(None)
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server = AccumulatingProtocol()
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server.makeConnection(FakeTransport(client, reactor))
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client.makeConnection(FakeTransport(server, reactor))
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|
|
return client, server
|