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Create a ListenerConfig object (#7681)

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This ended up being a bit more invasive than I'd hoped for (not helped by
generic_worker duplicating some of the code from homeserver), but hopefully
it's an improvement.

The idea is that, rather than storing unstructured `dict`s in the config for
the listener configurations, we instead parse it into a structured
`ListenerConfig` object.
This commit is contained in:
Richard van der Hoff 2020-06-16 12:44:07 +01:00 committed by GitHub
parent 789606577a
commit 03619324fc
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GPG Key ID: 4AEE18F83AFDEB23
13 changed files with 248 additions and 167 deletions
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1
changelog.d/7681.misc Normal file
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@ -0,0 +1 @@
Refactor handling of `listeners` configuration settings.

8
synapse/app/_base.py
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@ -20,6 +20,7 @@ import signal
import socket
import sys
import traceback
from typing import Iterable
from daemonize import Daemonize
from typing_extensions import NoReturn
@ -29,6 +30,7 @@ from twisted.protocols.tls import TLSMemoryBIOFactory
import synapse
from synapse.app import check_bind_error
from synapse.config.server import ListenerConfig
from synapse.crypto import context_factory
from synapse.logging.context import PreserveLoggingContext
from synapse.util.async_helpers import Linearizer
@ -234,7 +236,7 @@ def refresh_certificate(hs):
logger.info("Context factories updated.")
def start(hs, listeners=None):
def start(hs: "synapse.server.HomeServer", listeners: Iterable[ListenerConfig]):
"""
Start a Synapse server or worker.
@ -245,8 +247,8 @@ def start(hs, listeners=None):
notify systemd.
Args:
hs (synapse.server.HomeServer)
listeners (list[dict]): Listener configuration ('listeners' in homeserver.yaml)
hs: homeserver instance
listeners: Listener configuration ('listeners' in homeserver.yaml)
"""
try:
# Set up the SIGHUP machinery.

36
synapse/app/generic_worker.py
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@ -37,6 +37,7 @@ from synapse.app import _base
from synapse.config._base import ConfigError
from synapse.config.homeserver import HomeServerConfig
from synapse.config.logger import setup_logging
from synapse.config.server import ListenerConfig
from synapse.federation import send_queue
from synapse.federation.transport.server import TransportLayerServer
from synapse.handlers.presence import (
@ -514,13 +515,18 @@ class GenericWorkerSlavedStore(
class GenericWorkerServer(HomeServer):
DATASTORE_CLASS = GenericWorkerSlavedStore
def _listen_http(self, listener_config):
port = listener_config["port"]
bind_addresses = listener_config["bind_addresses"]
site_tag = listener_config.get("tag", port)
def _listen_http(self, listener_config: ListenerConfig):
port = listener_config.port
bind_addresses = listener_config.bind_addresses
assert listener_config.http_options is not None
site_tag = listener_config.http_options.tag
if site_tag is None:
site_tag = port
resources = {}
for res in listener_config["resources"]:
for name in res["names"]:
for res in listener_config.http_options.resources:
for name in res.names:
if name == "metrics":
resources[METRICS_PREFIX] = MetricsResource(RegistryProxy)
elif name == "client":
@ -590,7 +596,7 @@ class GenericWorkerServer(HomeServer):
" repository is disabled. Ignoring."
)
if name == "openid" and "federation" not in res["names"]:
if name == "openid" and "federation" not in res.names:
# Only load the openid resource separately if federation resource
# is not specified since federation resource includes openid
# resource.
@ -625,19 +631,19 @@ class GenericWorkerServer(HomeServer):
logger.info("Synapse worker now listening on port %d", port)
def start_listening(self, listeners):
def start_listening(self, listeners: Iterable[ListenerConfig]):
for listener in listeners:
if listener["type"] == "http":
if listener.type == "http":
self._listen_http(listener)
elif listener["type"] == "manhole":
elif listener.type == "manhole":
_base.listen_tcp(
listener["bind_addresses"],
listener["port"],
listener.bind_addresses,
listener.port,
manhole(
username="matrix", password="rabbithole", globals={"hs": self}
),
)
elif listener["type"] == "metrics":
elif listener.type == "metrics":
if not self.get_config().enable_metrics:
logger.warning(
(
@ -646,9 +652,9 @@ class GenericWorkerServer(HomeServer):
)
)
else:
_base.listen_metrics(listener["bind_addresses"], listener["port"])
_base.listen_metrics(listener.bind_addresses, listener.port)
else:
logger.warning("Unrecognized listener type: %s", listener["type"])
logger.warning("Unsupported listener type: %s", listener.type)
self.get_tcp_replication().start_replication(self)

50
synapse/app/homeserver.py
View File

@ -23,6 +23,7 @@ import math
import os
import resource
import sys
from typing import Iterable
from prometheus_client import Gauge
@ -48,6 +49,7 @@ from synapse.app import _base
from synapse.app._base import listen_ssl, listen_tcp, quit_with_error
from synapse.config._base import ConfigError
from synapse.config.homeserver import HomeServerConfig
from synapse.config.server import ListenerConfig
from synapse.federation.transport.server import TransportLayerServer
from synapse.http.additional_resource import AdditionalResource
from synapse.http.server import (
@ -87,24 +89,24 @@ def gz_wrap(r):
class SynapseHomeServer(HomeServer):
DATASTORE_CLASS = DataStore
def _listener_http(self, config, listener_config):
port = listener_config["port"]
bind_addresses = listener_config["bind_addresses"]
tls = listener_config.get("tls", False)
site_tag = listener_config.get("tag", port)
def _listener_http(self, config: HomeServerConfig, listener_config: ListenerConfig):
port = listener_config.port
bind_addresses = listener_config.bind_addresses
tls = listener_config.tls
site_tag = listener_config.http_options.tag
if site_tag is None:
site_tag = port
resources = {}
for res in listener_config["resources"]:
for name in res["names"]:
if name == "openid" and "federation" in res["names"]:
for res in listener_config.http_options.resources:
for name in res.names:
if name == "openid" and "federation" in res.names:
# Skip loading openid resource if federation is defined
# since federation resource will include openid
continue
resources.update(
self._configure_named_resource(name, res.get("compress", False))
)
resources.update(self._configure_named_resource(name, res.compress))
additional_resources = listener_config.get("additional_resources", {})
additional_resources = listener_config.http_options.additional_resources
logger.debug("Configuring additional resources: %r", additional_resources)
module_api = ModuleApi(self, self.get_auth_handler())
for path, resmodule in additional_resources.items():
@ -276,7 +278,7 @@ class SynapseHomeServer(HomeServer):
return resources
def start_listening(self, listeners):
def start_listening(self, listeners: Iterable[ListenerConfig]):
config = self.get_config()
if config.redis_enabled:
@ -286,25 +288,25 @@ class SynapseHomeServer(HomeServer):
self.get_tcp_replication().start_replication(self)
for listener in listeners:
if listener["type"] == "http":
if listener.type == "http":
self._listening_services.extend(self._listener_http(config, listener))
elif listener["type"] == "manhole":
elif listener.type == "manhole":
listen_tcp(
listener["bind_addresses"],
listener["port"],
listener.bind_addresses,
listener.port,
manhole(
username="matrix", password="rabbithole", globals={"hs": self}
),
)
elif listener["type"] == "replication":
elif listener.type == "replication":
services = listen_tcp(
listener["bind_addresses"],
listener["port"],
listener.bind_addresses,
listener.port,
ReplicationStreamProtocolFactory(self),
)
for s in services:
reactor.addSystemEventTrigger("before", "shutdown", s.stopListening)
elif listener["type"] == "metrics":
elif listener.type == "metrics":
if not self.get_config().enable_metrics:
logger.warning(
(
@ -313,9 +315,11 @@ class SynapseHomeServer(HomeServer):
)
)
else:
_base.listen_metrics(listener["bind_addresses"], listener["port"])
_base.listen_metrics(listener.bind_addresses, listener.port)
else:
logger.warning("Unrecognized listener type: %s", listener["type"])
# this shouldn't happen, as the listener type should have been checked
# during parsing
logger.warning("Unrecognized listener type: %s", listener.type)
# Gauges to expose monthly active user control metrics

229
synapse/config/server.py
View File

@ -19,7 +19,7 @@ import logging
import os.path
import re
from textwrap import indent
from typing import Dict, List, Optional
from typing import Any, Dict, Iterable, List, Optional
import attr
import yaml
@ -57,6 +57,64 @@ on how to configure the new listener.
--------------------------------------------------------------------------------"""
KNOWN_LISTENER_TYPES = {
"http",
"metrics",
"manhole",
"replication",
}
KNOWN_RESOURCES = {
"client",
"consent",
"federation",
"keys",
"media",
"metrics",
"openid",
"replication",
"static",
"webclient",
}
@attr.s(frozen=True)
class HttpResourceConfig:
names = attr.ib(
type=List[str],
factory=list,
validator=attr.validators.deep_iterable(attr.validators.in_(KNOWN_RESOURCES)), # type: ignore
)
compress = attr.ib(
type=bool,
default=False,
validator=attr.validators.optional(attr.validators.instance_of(bool)), # type: ignore[arg-type]
)
@attr.s(frozen=True)
class HttpListenerConfig:
"""Object describing the http-specific parts of the config of a listener"""
x_forwarded = attr.ib(type=bool, default=False)
resources = attr.ib(type=List[HttpResourceConfig], factory=list)
additional_resources = attr.ib(type=Dict[str, dict], factory=dict)
tag = attr.ib(type=str, default=None)
@attr.s(frozen=True)
class ListenerConfig:
"""Object describing the configuration of a single listener."""
port = attr.ib(type=int, validator=attr.validators.instance_of(int))
bind_addresses = attr.ib(type=List[str])
type = attr.ib(type=str, validator=attr.validators.in_(KNOWN_LISTENER_TYPES))
tls = attr.ib(type=bool, default=False)
# http_options is only populated if type=http
http_options = attr.ib(type=Optional[HttpListenerConfig], default=None)
class ServerConfig(Config):
section = "server"
@ -379,38 +437,21 @@ class ServerConfig(Config):
}
]
self.listeners = [] # type: List[dict]
for listener in config.get("listeners", []):
if not isinstance(listener.get("port", None), int):
raise ConfigError(
"Listener configuration is lacking a valid 'port' option"
)
self.listeners = [parse_listener_def(x) for x in config.get("listeners", [])]
if listener.setdefault("tls", False):
# no_tls is not really supported any more, but let's grandfather it in
# here.
if config.get("no_tls", False):
l2 = []
for listener in self.listeners:
if listener.tls:
logger.info(
"Ignoring TLS-enabled listener on port %i due to no_tls"
"Ignoring TLS-enabled listener on port %i due to no_tls",
listener.port,
)
continue
bind_address = listener.pop("bind_address", None)
bind_addresses = listener.setdefault("bind_addresses", [])
# if bind_address was specified, add it to the list of addresses
if bind_address:
bind_addresses.append(bind_address)
# if we still have an empty list of addresses, use the default list
if not bind_addresses:
if listener["type"] == "metrics":
# the metrics listener doesn't support IPv6
bind_addresses.append("0.0.0.0")
else:
bind_addresses.extend(DEFAULT_BIND_ADDRESSES)
self.listeners.append(listener)
l2.append(listener)
self.listeners = l2
if not self.web_client_location:
_warn_if_webclient_configured(self.listeners)
@ -446,43 +487,41 @@ class ServerConfig(Config):
bind_host = config.get("bind_host", "")
gzip_responses = config.get("gzip_responses", True)
self.listeners.append(
{
"port": bind_port,
"bind_addresses": [bind_host],
"tls": True,
"type": "http",
"resources": [
{"names": ["client"], "compress": gzip_responses},
{"names": ["federation"], "compress": False},
http_options = HttpListenerConfig(
resources=[
HttpResourceConfig(names=["client"], compress=gzip_responses),
HttpResourceConfig(names=["federation"]),
],
}
)
self.listeners.append(
ListenerConfig(
port=bind_port,
bind_addresses=[bind_host],
tls=True,
type="http",
http_options=http_options,
)
)
unsecure_port = config.get("unsecure_port", bind_port - 400)
if unsecure_port:
self.listeners.append(
{
"port": unsecure_port,
"bind_addresses": [bind_host],
"tls": False,
"type": "http",
"resources": [
{"names": ["client"], "compress": gzip_responses},
{"names": ["federation"], "compress": False},
],
}
ListenerConfig(
port=unsecure_port,
bind_addresses=[bind_host],
tls=False,
type="http",
http_options=http_options,
)
)
manhole = config.get("manhole")
if manhole:
self.listeners.append(
{
"port": manhole,
"bind_addresses": ["127.0.0.1"],
"type": "manhole",
"tls": False,
}
ListenerConfig(
port=manhole, bind_addresses=["127.0.0.1"], type="manhole",
)
)
metrics_port = config.get("metrics_port")
@ -490,13 +529,14 @@ class ServerConfig(Config):
logger.warning(METRICS_PORT_WARNING)
self.listeners.append(
{
"port": metrics_port,
"bind_addresses": [config.get("metrics_bind_host", "127.0.0.1")],
"tls": False,
"type": "http",
"resources": [{"names": ["metrics"], "compress": False}],
}
ListenerConfig(
port=metrics_port,
bind_addresses=[config.get("metrics_bind_host", "127.0.0.1")],
type="http",
http_options=HttpListenerConfig(
resources=[HttpResourceConfig(names=["metrics"])]
),
)
)
_check_resource_config(self.listeners)
@ -522,7 +562,7 @@ class ServerConfig(Config):
)
def has_tls_listener(self) -> bool:
return any(listener["tls"] for listener in self.listeners)
return any(listener.tls for listener in self.listeners)
def generate_config_section(
self, server_name, data_dir_path, open_private_ports, listeners, **kwargs
@ -1081,6 +1121,44 @@ def read_gc_thresholds(thresholds):
)
def parse_listener_def(listener: Any) -> ListenerConfig:
"""parse a listener config from the config file"""
listener_type = listener["type"]
port = listener.get("port")
if not isinstance(port, int):
raise ConfigError("Listener configuration is lacking a valid 'port' option")
tls = listener.get("tls", False)
bind_addresses = listener.get("bind_addresses", [])
bind_address = listener.get("bind_address")
# if bind_address was specified, add it to the list of addresses
if bind_address:
bind_addresses.append(bind_address)
# if we still have an empty list of addresses, use the default list
if not bind_addresses:
if listener_type == "metrics":
# the metrics listener doesn't support IPv6
bind_addresses.append("0.0.0.0")
else:
bind_addresses.extend(DEFAULT_BIND_ADDRESSES)
http_config = None
if listener_type == "http":
http_config = HttpListenerConfig(
x_forwarded=listener.get("x_forwarded", False),
resources=[
HttpResourceConfig(**res) for res in listener.get("resources", [])
],
additional_resources=listener.get("additional_resources", {}),
tag=listener.get("tag"),
)
return ListenerConfig(port, bind_addresses, listener_type, tls, http_config)
NO_MORE_WEB_CLIENT_WARNING = """
Synapse no longer includes a web client. To enable a web client, configure
web_client_location. To remove this warning, remove 'webclient' from the 'listeners'
@ -1088,40 +1166,27 @@ configuration.
"""
def _warn_if_webclient_configured(listeners):
def _warn_if_webclient_configured(listeners: Iterable[ListenerConfig]) -> None:
for listener in listeners:
for res in listener.get("resources", []):
for name in res.get("names", []):
if not listener.http_options:
continue
for res in listener.http_options.resources:
for name in res.names:
if name == "webclient":
logger.warning(NO_MORE_WEB_CLIENT_WARNING)
return
KNOWN_RESOURCES = (
"client",
"consent",
"federation",
"keys",
"media",
"metrics",
"openid",
"replication",
"static",
"webclient",
)
def _check_resource_config(listeners):
def _check_resource_config(listeners: Iterable[ListenerConfig]) -> None:
resource_names = {
res_name
for listener in listeners
for res in listener.get("resources", [])
for res_name in res.get("names", [])
if listener.http_options
for res in listener.http_options.resources
for res_name in res.names
}
for resource in resource_names:
if resource not in KNOWN_RESOURCES:
raise ConfigError("Unknown listener resource '%s'" % (resource,))
if resource == "consent":
try:
check_requirements("resources.consent")

24
synapse/config/workers.py
View File

@ -16,6 +16,7 @@
import attr
from ._base import Config, ConfigError
from .server import ListenerConfig, parse_listener_def
@attr.s
@ -52,7 +53,9 @@ class WorkerConfig(Config):
if self.worker_app == "synapse.app.homeserver":
self.worker_app = None
self.worker_listeners = config.get("worker_listeners", [])
self.worker_listeners = [
parse_listener_def(x) for x in config.get("worker_listeners", [])
]
self.worker_daemonize = config.get("worker_daemonize")
self.worker_pid_file = config.get("worker_pid_file")
self.worker_log_config = config.get("worker_log_config")
@ -75,23 +78,10 @@ class WorkerConfig(Config):
manhole = config.get("worker_manhole")
if manhole:
self.worker_listeners.append(
{
"port": manhole,
"bind_addresses": ["127.0.0.1"],
"type": "manhole",
"tls": False,
}
ListenerConfig(
port=manhole, bind_addresses=["127.0.0.1"], type="manhole",
)
)
if self.worker_listeners:
for listener in self.worker_listeners:
bind_address = listener.pop("bind_address", None)
bind_addresses = listener.setdefault("bind_addresses", [])
if bind_address:
bind_addresses.append(bind_address)
elif not bind_addresses:
bind_addresses.append("")
# A map from instance name to host/port of their HTTP replication endpoint.
instance_map = config.get("instance_map") or {}

6
synapse/http/site.py
View File

@ -19,6 +19,7 @@ from typing import Optional
from twisted.python.failure import Failure
from twisted.web.server import Request, Site
from synapse.config.server import ListenerConfig
from synapse.http import redact_uri
from synapse.http.request_metrics import RequestMetrics, requests_counter
from synapse.logging.context import LoggingContext, PreserveLoggingContext
@ -350,7 +351,7 @@ class SynapseSite(Site):
self,
logger_name,
site_tag,
config,
config: ListenerConfig,
resource,
server_version_string,
*args,
@ -360,7 +361,8 @@ class SynapseSite(Site):
self.site_tag = site_tag
proxied = config.get("x_forwarded", False)
assert config.http_options is not None
proxied = config.http_options.x_forwarded
self.requestFactory = XForwardedForRequest if proxied else SynapseRequest
self.access_logger = logging.getLogger(logger_name)
self.server_version_string = server_version_string.encode("ascii")

5
synapse/python_dependencies.py
View File

@ -68,9 +68,8 @@ REQUIREMENTS = [
"phonenumbers>=8.2.0",
"six>=1.10",
"prometheus_client>=0.0.18,<0.8.0",
# we use attr.s(slots), which arrived in 16.0.0
# Twisted 18.7.0 requires attrs>=17.4.0
"attrs>=17.4.0",
# we use attr.validators.deep_iterable, which arrived in 19.1.0
"attrs>=19.1.0",
"netaddr>=0.7.18",
"Jinja2>=2.9",
"bleach>=1.4.3",

26
tests/app/test_frontend_proxy.py
View File

@ -30,6 +30,16 @@ class FrontendProxyTests(HomeserverTestCase):
def default_config(self):
c = super().default_config()
c["worker_app"] = "synapse.app.frontend_proxy"
c["worker_listeners"] = [
{
"type": "http",
"port": 8080,
"bind_addresses": ["0.0.0.0"],
"resources": [{"names": ["client"]}],
}
]
return c
def test_listen_http_with_presence_enabled(self):
@ -39,14 +49,8 @@ class FrontendProxyTests(HomeserverTestCase):
# Presence is on
self.hs.config.use_presence = True
config = {
"port": 8080,
"bind_addresses": ["0.0.0.0"],
"resources": [{"names": ["client"]}],
}
# Listen with the config
self.hs._listen_http(config)
self.hs._listen_http(self.hs.config.worker.worker_listeners[0])
# Grab the resource from the site that was told to listen
self.assertEqual(len(self.reactor.tcpServers), 1)
@ -67,14 +71,8 @@ class FrontendProxyTests(HomeserverTestCase):
# Presence is off
self.hs.config.use_presence = False
config = {
"port": 8080,
"bind_addresses": ["0.0.0.0"],
"resources": [{"names": ["client"]}],
}
# Listen with the config
self.hs._listen_http(config)
self.hs._listen_http(self.hs.config.worker.worker_listeners[0])
# Grab the resource from the site that was told to listen
self.assertEqual(len(self.reactor.tcpServers), 1)

8
tests/app/test_openid_listener.py
View File

@ -18,6 +18,7 @@ from parameterized import parameterized
from synapse.app.generic_worker import GenericWorkerServer
from synapse.app.homeserver import SynapseHomeServer
from synapse.config.server import parse_listener_def
from tests.unittest import HomeserverTestCase
@ -35,6 +36,7 @@ class FederationReaderOpenIDListenerTests(HomeserverTestCase):
# have to tell the FederationHandler not to try to access stuff that is only
# in the primary store.
conf["worker_app"] = "yes"
return conf
@parameterized.expand(
@ -53,12 +55,13 @@ class FederationReaderOpenIDListenerTests(HomeserverTestCase):
"""
config = {
"port": 8080,
"type": "http",
"bind_addresses": ["0.0.0.0"],
"resources": [{"names": names}],
}
# Listen with the config
self.hs._listen_http(config)
self.hs._listen_http(parse_listener_def(config))
# Grab the resource from the site that was told to listen
site = self.reactor.tcpServers[0][1]
@ -101,12 +104,13 @@ class SynapseHomeserverOpenIDListenerTests(HomeserverTestCase):
"""
config = {
"port": 8080,
"type": "http",
"bind_addresses": ["0.0.0.0"],
"resources": [{"names": names}],
}
# Listen with the config
self.hs._listener_http(config, config)
self.hs._listener_http(self.hs.get_config(), parse_listener_def(config))
# Grab the resource from the site that was told to listen
site = self.reactor.tcpServers[0][1]

13
tests/test_server.py
View File

@ -24,6 +24,7 @@ from twisted.web.resource import Resource
from twisted.web.server import NOT_DONE_YET
from synapse.api.errors import Codes, RedirectException, SynapseError
from synapse.config.server import parse_listener_def
from synapse.http.server import (
DirectServeResource,
JsonResource,
@ -189,7 +190,13 @@ class OptionsResourceTests(unittest.TestCase):
request.prepath = [] # This doesn't get set properly by make_request.
# Create a site and query for the resource.
site = SynapseSite("test", "site_tag", {}, self.resource, "1.0")
site = SynapseSite(
"test",
"site_tag",
parse_listener_def({"type": "http", "port": 0}),
self.resource,
"1.0",
)
request.site = site
resource = site.getResourceFor(request)
@ -348,7 +355,9 @@ class SiteTestCase(unittest.HomeserverTestCase):
# time out the request while it's 'processing'
base_resource = Resource()
base_resource.putChild(b"", HangingResource())
site = SynapseSite("test", "site_tag", {}, base_resource, "1.0")
site = SynapseSite(
"test", "site_tag", self.hs.config.listeners[0], base_resource, "1.0"
)
server = site.buildProtocol(None)
client = AccumulatingProtocol()

2
tests/unittest.py
View File

@ -229,7 +229,7 @@ class HomeserverTestCase(TestCase):
self.site = SynapseSite(
logger_name="synapse.access.http.fake",
site_tag="test",
config={},
config=self.hs.config.server.listeners[0],
resource=self.resource,
server_version_string="1",
)

1
tests/utils.py
View File

@ -168,6 +168,7 @@ def default_config(name, parse=False):
# background, which upsets the test runner.
"update_user_directory": False,
"caches": {"global_factor": 1},
"listeners": [{"port": 0, "type": "http"}],
}
if parse: