Set Server header in SynapseRequest

(instead of everywhere that writes a response. Or rather, the subset of places
which write responses where we haven't forgotten it).

This also means that we don't have to have the mysterious version_string
attribute in anything with a request handler.

Unfortunately it does mean that we have to pass the version string wherever we
instantiate a SynapseSite, which has been c&ped 150 times, but that is code
that ought to be cleaned up anyway really.
This commit is contained in:
Richard van der Hoff 2018-05-10 18:46:59 +01:00
parent 7b411007e6
commit 318711e139
23 changed files with 28 additions and 27 deletions

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@ -74,6 +74,7 @@ class AppserviceServer(HomeServer):
site_tag,
listener_config,
root_resource,
self.version_string,
)
)

View File

@ -98,6 +98,7 @@ class ClientReaderServer(HomeServer):
site_tag,
listener_config,
root_resource,
self.version_string,
)
)

View File

@ -114,6 +114,7 @@ class EventCreatorServer(HomeServer):
site_tag,
listener_config,
root_resource,
self.version_string,
)
)

View File

@ -87,6 +87,7 @@ class FederationReaderServer(HomeServer):
site_tag,
listener_config,
root_resource,
self.version_string,
)
)

View File

@ -101,6 +101,7 @@ class FederationSenderServer(HomeServer):
site_tag,
listener_config,
root_resource,
self.version_string,
)
)

View File

@ -152,6 +152,7 @@ class FrontendProxyServer(HomeServer):
site_tag,
listener_config,
root_resource,
self.version_string,
)
)

View File

@ -140,6 +140,7 @@ class SynapseHomeServer(HomeServer):
site_tag,
listener_config,
root_resource,
self.version_string,
),
self.tls_server_context_factory,
)
@ -153,6 +154,7 @@ class SynapseHomeServer(HomeServer):
site_tag,
listener_config,
root_resource,
self.version_string,
)
)
logger.info("Synapse now listening on port %d", port)

View File

@ -94,6 +94,7 @@ class MediaRepositoryServer(HomeServer):
site_tag,
listener_config,
root_resource,
self.version_string,
)
)

View File

@ -104,6 +104,7 @@ class PusherServer(HomeServer):
site_tag,
listener_config,
root_resource,
self.version_string,
)
)

View File

@ -281,6 +281,7 @@ class SynchrotronServer(HomeServer):
site_tag,
listener_config,
root_resource,
self.version_string,
)
)

View File

@ -126,6 +126,7 @@ class UserDirectoryServer(HomeServer):
site_tag,
listener_config,
root_resource,
self.version_string,
)
)

View File

@ -42,8 +42,7 @@ class AdditionalResource(Resource):
Resource.__init__(self)
self._handler = handler
# these are required by the request_handler wrapper
self.version_string = hs.version_string
# required by the request_handler wrapper
self.clock = hs.get_clock()
def render(self, request):

View File

@ -51,8 +51,8 @@ def wrap_json_request_handler(h):
Also adds logging as per wrap_request_handler_with_logging.
The handler method must have a signature of "handle_foo(self, request)",
where "self" must have "version_string" and "clock" attributes (and
"request" must be a SynapseRequest).
where "self" must have a "clock" attribute (and "request" must be a
SynapseRequest).
The handler must return a deferred. If the deferred succeeds we assume that
a response has been sent. If the deferred fails with a SynapseError we use
@ -75,7 +75,6 @@ def wrap_json_request_handler(h):
respond_with_json(
request, code, cs_exception(e), send_cors=True,
pretty_print=_request_user_agent_is_curl(request),
version_string=self.version_string,
)
except Exception:
@ -98,7 +97,6 @@ def wrap_json_request_handler(h):
},
send_cors=True,
pretty_print=_request_user_agent_is_curl(request),
version_string=self.version_string,
)
return wrap_request_handler_with_logging(wrapped_request_handler)
@ -192,7 +190,6 @@ class JsonResource(HttpServer, resource.Resource):
self.canonical_json = canonical_json
self.clock = hs.get_clock()
self.path_regexs = {}
self.version_string = hs.version_string
self.hs = hs
def register_paths(self, method, path_patterns, callback):
@ -275,7 +272,6 @@ class JsonResource(HttpServer, resource.Resource):
send_cors=True,
response_code_message=response_code_message,
pretty_print=_request_user_agent_is_curl(request),
version_string=self.version_string,
canonical_json=self.canonical_json,
)
@ -326,7 +322,7 @@ class RootRedirect(resource.Resource):
def respond_with_json(request, code, json_object, send_cors=False,
response_code_message=None, pretty_print=False,
version_string="", canonical_json=True):
canonical_json=True):
# could alternatively use request.notifyFinish() and flip a flag when
# the Deferred fires, but since the flag is RIGHT THERE it seems like
# a waste.
@ -348,12 +344,11 @@ def respond_with_json(request, code, json_object, send_cors=False,
request, code, json_bytes,
send_cors=send_cors,
response_code_message=response_code_message,
version_string=version_string
)
def respond_with_json_bytes(request, code, json_bytes, send_cors=False,
version_string="", response_code_message=None):
response_code_message=None):
"""Sends encoded JSON in response to the given request.
Args:
@ -367,7 +362,6 @@ def respond_with_json_bytes(request, code, json_bytes, send_cors=False,
request.setResponseCode(code, message=response_code_message)
request.setHeader(b"Content-Type", b"application/json")
request.setHeader(b"Server", version_string)
request.setHeader(b"Content-Length", b"%d" % (len(json_bytes),))
request.setHeader(b"Cache-Control", b"no-cache, no-store, must-revalidate")

View File

@ -77,6 +77,11 @@ class SynapseRequest(Request):
def get_user_agent(self):
return self.requestHeaders.getRawHeaders(b"User-Agent", [None])[-1]
def render(self, resrc):
# override the Server header which is set by twisted
self.setHeader("Server", self.site.server_version_string)
return Request.render(self, resrc)
def _started_processing(self, servlet_name):
self.start_time = int(time.time() * 1000)
self.request_metrics = RequestMetrics()
@ -151,6 +156,8 @@ class SynapseRequest(Request):
It is possible to update this afterwards by updating
self.request_metrics.servlet_name.
"""
# TODO: we should probably just move this into render() and finish(),
# to save having to call a separate method.
self._started_processing(servlet_name)
yield
self._finished_processing()
@ -191,7 +198,8 @@ class SynapseSite(Site):
Subclass of a twisted http Site that does access logging with python's
standard logging
"""
def __init__(self, logger_name, site_tag, config, resource, *args, **kwargs):
def __init__(self, logger_name, site_tag, config, resource,
server_version_string, *args, **kwargs):
Site.__init__(self, resource, *args, **kwargs)
self.site_tag = site_tag
@ -199,6 +207,7 @@ class SynapseSite(Site):
proxied = config.get("x_forwarded", False)
self.requestFactory = SynapseRequestFactory(self, proxied)
self.access_logger = logging.getLogger(logger_name)
self.server_version_string = server_version_string
def log(self, request):
pass

View File

@ -176,7 +176,6 @@ class PushersRemoveRestServlet(RestServlet):
request.setResponseCode(200)
request.setHeader(b"Content-Type", b"text/html; charset=utf-8")
request.setHeader(b"Server", self.hs.version_string)
request.setHeader(b"Content-Length", b"%d" % (
len(PushersRemoveRestServlet.SUCCESS_HTML),
))

View File

@ -129,7 +129,6 @@ class AuthRestServlet(RestServlet):
html_bytes = html.encode("utf8")
request.setResponseCode(200)
request.setHeader(b"Content-Type", b"text/html; charset=utf-8")
request.setHeader(b"Server", self.hs.version_string)
request.setHeader(b"Content-Length", b"%d" % (len(html_bytes),))
request.write(html_bytes)
@ -175,7 +174,6 @@ class AuthRestServlet(RestServlet):
html_bytes = html.encode("utf8")
request.setResponseCode(200)
request.setHeader(b"Content-Type", b"text/html; charset=utf-8")
request.setHeader(b"Server", self.hs.version_string)
request.setHeader(b"Content-Length", b"%d" % (len(html_bytes),))
request.write(html_bytes)

View File

@ -49,7 +49,6 @@ class LocalKey(Resource):
"""
def __init__(self, hs):
self.version_string = hs.version_string
self.response_body = encode_canonical_json(
self.response_json_object(hs.config)
)
@ -84,7 +83,6 @@ class LocalKey(Resource):
def render_GET(self, request):
return respond_with_json_bytes(
request, 200, self.response_body,
version_string=self.version_string
)
def getChild(self, name, request):

View File

@ -63,7 +63,6 @@ class LocalKey(Resource):
isLeaf = True
def __init__(self, hs):
self.version_string = hs.version_string
self.config = hs.config
self.clock = hs.clock
self.update_response_body(self.clock.time_msec())
@ -115,5 +114,4 @@ class LocalKey(Resource):
self.update_response_body(time_now)
return respond_with_json_bytes(
request, 200, self.response_body,
version_string=self.version_string
)

View File

@ -93,7 +93,6 @@ class RemoteKey(Resource):
def __init__(self, hs):
self.keyring = hs.get_keyring()
self.store = hs.get_datastore()
self.version_string = hs.version_string
self.clock = hs.get_clock()
self.federation_domain_whitelist = hs.config.federation_domain_whitelist
@ -242,5 +241,4 @@ class RemoteKey(Resource):
respond_with_json_bytes(
request, 200, result_io.getvalue(),
version_string=self.version_string
)

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@ -37,9 +37,8 @@ class DownloadResource(Resource):
self.media_repo = media_repo
self.server_name = hs.hostname
# Both of these are expected by @request_handler()
# this is expected by @wrap_json_request_handler
self.clock = hs.get_clock()
self.version_string = hs.version_string
def render_GET(self, request):
self._async_render_GET(request)

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@ -58,7 +58,6 @@ class PreviewUrlResource(Resource):
self.auth = hs.get_auth()
self.clock = hs.get_clock()
self.version_string = hs.version_string
self.filepaths = media_repo.filepaths
self.max_spider_size = hs.config.max_spider_size
self.server_name = hs.hostname

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@ -44,7 +44,6 @@ class ThumbnailResource(Resource):
self.media_storage = media_storage
self.dynamic_thumbnails = hs.config.dynamic_thumbnails
self.server_name = hs.hostname
self.version_string = hs.version_string
self.clock = hs.get_clock()
def render_GET(self, request):

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@ -41,7 +41,6 @@ class UploadResource(Resource):
self.server_name = hs.hostname
self.auth = hs.get_auth()
self.max_upload_size = hs.config.max_upload_size
self.version_string = hs.version_string
self.clock = hs.get_clock()
def render_POST(self, request):