diff options
| -rw-r--r-- | changelog.d/8632.bugfix | 1 | ||||
| -rw-r--r-- | synapse/api/auth.py | 4 | ||||
| -rw-r--r-- | synapse/handlers/auth.py | 4 | ||||
| -rw-r--r-- | synapse/handlers/cas_handler.py | 4 | ||||
| -rw-r--r-- | synapse/handlers/oidc_handler.py | 4 | ||||
| -rw-r--r-- | synapse/handlers/saml_handler.py | 4 | ||||
| -rw-r--r-- | synapse/http/site.py | 16 | ||||
| -rw-r--r-- | tests/handlers/test_oidc.py | 24 |
8 files changed, 33 insertions, 28 deletions
diff --git a/changelog.d/8632.bugfix b/changelog.d/8632.bugfix new file mode 100644 index 0000000000..7d834aa2e2 --- /dev/null +++ b/changelog.d/8632.bugfix @@ -0,0 +1 @@ +Fix handling of User-Agent headers that are invalid UTF-8, which caused user agents of users to not get correctly recorded. diff --git a/synapse/api/auth.py b/synapse/api/auth.py index bff87fabde..526cb58c5f 100644 --- a/synapse/api/auth.py +++ b/synapse/api/auth.py @@ -184,9 +184,7 @@ class Auth: """ try: ip_addr = self.hs.get_ip_from_request(request) - user_agent = request.requestHeaders.getRawHeaders( - b"User-Agent", default=[b""] - )[0].decode("ascii", "surrogateescape") + user_agent = request.get_user_agent("") access_token = self.get_access_token_from_request(request) diff --git a/synapse/handlers/auth.py b/synapse/handlers/auth.py index 8619fbb982..48d60feaab 100644 --- a/synapse/handlers/auth.py +++ b/synapse/handlers/auth.py @@ -470,9 +470,7 @@ class AuthHandler(BaseHandler): # authentication flow. await self.store.set_ui_auth_clientdict(sid, clientdict) - user_agent = request.requestHeaders.getRawHeaders(b"User-Agent", default=[b""])[ - 0 - ].decode("ascii", "surrogateescape") + user_agent = request.get_user_agent("") await self.store.add_user_agent_ip_to_ui_auth_session( session.session_id, user_agent, clientip diff --git a/synapse/handlers/cas_handler.py b/synapse/handlers/cas_handler.py index a4cc4b9a5a..048a3b3c0b 100644 --- a/synapse/handlers/cas_handler.py +++ b/synapse/handlers/cas_handler.py @@ -212,9 +212,7 @@ class CasHandler: else: if not registered_user_id: # Pull out the user-agent and IP from the request. - user_agent = request.requestHeaders.getRawHeaders( - b"User-Agent", default=[b""] - )[0].decode("ascii", "surrogateescape") + user_agent = request.get_user_agent("") ip_address = self.hs.get_ip_from_request(request) registered_user_id = await self._registration_handler.register_user( diff --git a/synapse/handlers/oidc_handler.py b/synapse/handlers/oidc_handler.py index 05ac86e697..a312610635 100644 --- a/synapse/handlers/oidc_handler.py +++ b/synapse/handlers/oidc_handler.py @@ -695,9 +695,7 @@ class OidcHandler: return # Pull out the user-agent and IP from the request. - user_agent = request.requestHeaders.getRawHeaders(b"User-Agent", default=[b""])[ - 0 - ].decode("ascii", "surrogateescape") + user_agent = request.get_user_agent("") ip_address = self.hs.get_ip_from_request(request) # Call the mapper to register/login the user diff --git a/synapse/handlers/saml_handler.py b/synapse/handlers/saml_handler.py index 285c481a96..fd6c5e9ea8 100644 --- a/synapse/handlers/saml_handler.py +++ b/synapse/handlers/saml_handler.py @@ -216,9 +216,7 @@ class SamlHandler: return # Pull out the user-agent and IP from the request. - user_agent = request.requestHeaders.getRawHeaders(b"User-Agent", default=[b""])[ - 0 - ].decode("ascii", "surrogateescape") + user_agent = request.get_user_agent("") ip_address = self.hs.get_ip_from_request(request) # Call the mapper to register/login the user diff --git a/synapse/http/site.py b/synapse/http/site.py index 6e79b47828..ca673028e4 100644 --- a/synapse/http/site.py +++ b/synapse/http/site.py @@ -109,8 +109,14 @@ class SynapseRequest(Request): method = self.method.decode("ascii") return method - def get_user_agent(self): - return self.requestHeaders.getRawHeaders(b"User-Agent", [None])[-1] + def get_user_agent(self, default: str) -> str: + """Return the last User-Agent header, or the given default. + """ + user_agent = self.requestHeaders.getRawHeaders(b"User-Agent", [None])[-1] + if user_agent is None: + return default + + return user_agent.decode("ascii", "replace") def render(self, resrc): # this is called once a Resource has been found to serve the request; in our @@ -274,11 +280,7 @@ class SynapseRequest(Request): # with maximum recursion trying to log errors about # the charset problem. # c.f. https://github.com/matrix-org/synapse/issues/3471 - user_agent = self.get_user_agent() - if user_agent is not None: - user_agent = user_agent.decode("utf-8", "replace") - else: - user_agent = "-" + user_agent = self.get_user_agent("-") code = str(self.code) if not self.finished: diff --git a/tests/handlers/test_oidc.py b/tests/handlers/test_oidc.py index b6f436c016..0d51705849 100644 --- a/tests/handlers/test_oidc.py +++ b/tests/handlers/test_oidc.py @@ -394,7 +394,14 @@ class OidcHandlerTestCase(HomeserverTestCase): self.handler._map_userinfo_to_user = simple_async_mock(return_value=user_id) self.handler._auth_handler.complete_sso_login = simple_async_mock() request = Mock( - spec=["args", "getCookie", "addCookie", "requestHeaders", "getClientIP"] + spec=[ + "args", + "getCookie", + "addCookie", + "requestHeaders", + "getClientIP", + "get_user_agent", + ] ) code = "code" @@ -414,9 +421,8 @@ class OidcHandlerTestCase(HomeserverTestCase): request.args[b"code"] = [code.encode("utf-8")] request.args[b"state"] = [state.encode("utf-8")] - request.requestHeaders = Mock(spec=["getRawHeaders"]) - request.requestHeaders.getRawHeaders.return_value = [user_agent.encode("ascii")] request.getClientIP.return_value = ip_address + request.get_user_agent.return_value = user_agent self.get_success(self.handler.handle_oidc_callback(request)) @@ -621,7 +627,14 @@ class OidcHandlerTestCase(HomeserverTestCase): self.handler._map_userinfo_to_user = simple_async_mock(return_value=user_id) self.handler._auth_handler.complete_sso_login = simple_async_mock() request = Mock( - spec=["args", "getCookie", "addCookie", "requestHeaders", "getClientIP"] + spec=[ + "args", + "getCookie", + "addCookie", + "requestHeaders", + "getClientIP", + "get_user_agent", + ] ) state = "state" @@ -637,9 +650,8 @@ class OidcHandlerTestCase(HomeserverTestCase): request.args[b"code"] = [b"code"] request.args[b"state"] = [state.encode("utf-8")] - request.requestHeaders = Mock(spec=["getRawHeaders"]) - request.requestHeaders.getRawHeaders.return_value = [b"Browser"] request.getClientIP.return_value = "10.0.0.1" + request.get_user_agent.return_value = "Browser" self.get_success(self.handler.handle_oidc_callback(request)) |