From 8327eb9280cbcb492e05652a96be9f1cd1c0e7c4 Mon Sep 17 00:00:00 2001 From: Dirk Klimpel <5740567+dklimpel@users.noreply.github.com> Date: Fri, 27 Mar 2020 20:15:23 +0100 Subject: [PATCH] Add options to prevent users from changing their profile. (#7096) --- changelog.d/7096.feature | 1 + docs/sample_config.yaml | 23 ++ synapse/config/registration.py | 27 ++ synapse/handlers/profile.py | 16 ++ synapse/rest/client/v2_alpha/account.py | 16 ++ tests/handlers/test_profile.py | 65 ++++- tests/rest/client/v2_alpha/test_account.py | 302 +++++++++++++++++++++ 7 files changed, 449 insertions(+), 1 deletion(-) create mode 100644 changelog.d/7096.feature diff --git a/changelog.d/7096.feature b/changelog.d/7096.feature new file mode 100644 index 000000000..00f47b2a1 --- /dev/null +++ b/changelog.d/7096.feature @@ -0,0 +1 @@ +Add options to prevent users from changing their profile or associated 3PIDs. \ No newline at end of file diff --git a/docs/sample_config.yaml b/docs/sample_config.yaml index 1a1d06175..545226f75 100644 --- a/docs/sample_config.yaml +++ b/docs/sample_config.yaml @@ -1086,6 +1086,29 @@ account_threepid_delegates: #email: https://example.com # Delegate email sending to example.com #msisdn: http://localhost:8090 # Delegate SMS sending to this local process +# Whether users are allowed to change their displayname after it has +# been initially set. Useful when provisioning users based on the +# contents of a third-party directory. +# +# Does not apply to server administrators. Defaults to 'true' +# +#enable_set_displayname: false + +# Whether users are allowed to change their avatar after it has been +# initially set. Useful when provisioning users based on the contents +# of a third-party directory. +# +# Does not apply to server administrators. Defaults to 'true' +# +#enable_set_avatar_url: false + +# Whether users can change the 3PIDs associated with their accounts +# (email address and msisdn). +# +# Defaults to 'true' +# +#enable_3pid_changes: false + # Users who register on this homeserver will automatically be joined # to these rooms # diff --git a/synapse/config/registration.py b/synapse/config/registration.py index 9bb3beedb..e7ea3a01c 100644 --- a/synapse/config/registration.py +++ b/synapse/config/registration.py @@ -129,6 +129,10 @@ class RegistrationConfig(Config): raise ConfigError("Invalid auto_join_rooms entry %s" % (room_alias,)) self.autocreate_auto_join_rooms = config.get("autocreate_auto_join_rooms", True) + self.enable_set_displayname = config.get("enable_set_displayname", True) + self.enable_set_avatar_url = config.get("enable_set_avatar_url", True) + self.enable_3pid_changes = config.get("enable_3pid_changes", True) + self.disable_msisdn_registration = config.get( "disable_msisdn_registration", False ) @@ -330,6 +334,29 @@ class RegistrationConfig(Config): #email: https://example.com # Delegate email sending to example.com #msisdn: http://localhost:8090 # Delegate SMS sending to this local process + # Whether users are allowed to change their displayname after it has + # been initially set. Useful when provisioning users based on the + # contents of a third-party directory. + # + # Does not apply to server administrators. Defaults to 'true' + # + #enable_set_displayname: false + + # Whether users are allowed to change their avatar after it has been + # initially set. Useful when provisioning users based on the contents + # of a third-party directory. + # + # Does not apply to server administrators. Defaults to 'true' + # + #enable_set_avatar_url: false + + # Whether users can change the 3PIDs associated with their accounts + # (email address and msisdn). + # + # Defaults to 'true' + # + #enable_3pid_changes: false + # Users who register on this homeserver will automatically be joined # to these rooms # diff --git a/synapse/handlers/profile.py b/synapse/handlers/profile.py index 50ce0c585..6aa1c0f5e 100644 --- a/synapse/handlers/profile.py +++ b/synapse/handlers/profile.py @@ -157,6 +157,15 @@ class BaseProfileHandler(BaseHandler): if not by_admin and target_user != requester.user: raise AuthError(400, "Cannot set another user's displayname") + if not by_admin and not self.hs.config.enable_set_displayname: + profile = yield self.store.get_profileinfo(target_user.localpart) + if profile.display_name: + raise SynapseError( + 400, + "Changing display name is disabled on this server", + Codes.FORBIDDEN, + ) + if len(new_displayname) > MAX_DISPLAYNAME_LEN: raise SynapseError( 400, "Displayname is too long (max %i)" % (MAX_DISPLAYNAME_LEN,) @@ -218,6 +227,13 @@ class BaseProfileHandler(BaseHandler): if not by_admin and target_user != requester.user: raise AuthError(400, "Cannot set another user's avatar_url") + if not by_admin and not self.hs.config.enable_set_avatar_url: + profile = yield self.store.get_profileinfo(target_user.localpart) + if profile.avatar_url: + raise SynapseError( + 400, "Changing avatar is disabled on this server", Codes.FORBIDDEN + ) + if len(new_avatar_url) > MAX_AVATAR_URL_LEN: raise SynapseError( 400, "Avatar URL is too long (max %i)" % (MAX_AVATAR_URL_LEN,) diff --git a/synapse/rest/client/v2_alpha/account.py b/synapse/rest/client/v2_alpha/account.py index b1249b664..f80b5e40e 100644 --- a/synapse/rest/client/v2_alpha/account.py +++ b/synapse/rest/client/v2_alpha/account.py @@ -605,6 +605,11 @@ class ThreepidRestServlet(RestServlet): return 200, {"threepids": threepids} async def on_POST(self, request): + if not self.hs.config.enable_3pid_changes: + raise SynapseError( + 400, "3PID changes are disabled on this server", Codes.FORBIDDEN + ) + requester = await self.auth.get_user_by_req(request) user_id = requester.user.to_string() body = parse_json_object_from_request(request) @@ -649,6 +654,11 @@ class ThreepidAddRestServlet(RestServlet): @interactive_auth_handler async def on_POST(self, request): + if not self.hs.config.enable_3pid_changes: + raise SynapseError( + 400, "3PID changes are disabled on this server", Codes.FORBIDDEN + ) + requester = await self.auth.get_user_by_req(request) user_id = requester.user.to_string() body = parse_json_object_from_request(request) @@ -744,10 +754,16 @@ class ThreepidDeleteRestServlet(RestServlet): def __init__(self, hs): super(ThreepidDeleteRestServlet, self).__init__() + self.hs = hs self.auth = hs.get_auth() self.auth_handler = hs.get_auth_handler() async def on_POST(self, request): + if not self.hs.config.enable_3pid_changes: + raise SynapseError( + 400, "3PID changes are disabled on this server", Codes.FORBIDDEN + ) + body = parse_json_object_from_request(request) assert_params_in_dict(body, ["medium", "address"]) diff --git a/tests/handlers/test_profile.py b/tests/handlers/test_profile.py index d60c124ee..be665262c 100644 --- a/tests/handlers/test_profile.py +++ b/tests/handlers/test_profile.py @@ -19,7 +19,7 @@ from mock import Mock, NonCallableMock from twisted.internet import defer import synapse.types -from synapse.api.errors import AuthError +from synapse.api.errors import AuthError, SynapseError from synapse.handlers.profile import MasterProfileHandler from synapse.types import UserID @@ -70,6 +70,7 @@ class ProfileTestCase(unittest.TestCase): yield self.store.create_profile(self.frank.localpart) self.handler = hs.get_profile_handler() + self.hs = hs @defer.inlineCallbacks def test_get_my_name(self): @@ -90,6 +91,33 @@ class ProfileTestCase(unittest.TestCase): "Frank Jr.", ) + # Set displayname again + yield self.handler.set_displayname( + self.frank, synapse.types.create_requester(self.frank), "Frank" + ) + + self.assertEquals( + (yield self.store.get_profile_displayname(self.frank.localpart)), "Frank", + ) + + @defer.inlineCallbacks + def test_set_my_name_if_disabled(self): + self.hs.config.enable_set_displayname = False + + # Setting displayname for the first time is allowed + yield self.store.set_profile_displayname(self.frank.localpart, "Frank") + + self.assertEquals( + (yield self.store.get_profile_displayname(self.frank.localpart)), "Frank", + ) + + # Setting displayname a second time is forbidden + d = self.handler.set_displayname( + self.frank, synapse.types.create_requester(self.frank), "Frank Jr." + ) + + yield self.assertFailure(d, SynapseError) + @defer.inlineCallbacks def test_set_my_name_noauth(self): d = self.handler.set_displayname( @@ -147,3 +175,38 @@ class ProfileTestCase(unittest.TestCase): (yield self.store.get_profile_avatar_url(self.frank.localpart)), "http://my.server/pic.gif", ) + + # Set avatar again + yield self.handler.set_avatar_url( + self.frank, + synapse.types.create_requester(self.frank), + "http://my.server/me.png", + ) + + self.assertEquals( + (yield self.store.get_profile_avatar_url(self.frank.localpart)), + "http://my.server/me.png", + ) + + @defer.inlineCallbacks + def test_set_my_avatar_if_disabled(self): + self.hs.config.enable_set_avatar_url = False + + # Setting displayname for the first time is allowed + yield self.store.set_profile_avatar_url( + self.frank.localpart, "http://my.server/me.png" + ) + + self.assertEquals( + (yield self.store.get_profile_avatar_url(self.frank.localpart)), + "http://my.server/me.png", + ) + + # Set avatar a second time is forbidden + d = self.handler.set_avatar_url( + self.frank, + synapse.types.create_requester(self.frank), + "http://my.server/pic.gif", + ) + + yield self.assertFailure(d, SynapseError) diff --git a/tests/rest/client/v2_alpha/test_account.py b/tests/rest/client/v2_alpha/test_account.py index c3facc00e..45a9d445f 100644 --- a/tests/rest/client/v2_alpha/test_account.py +++ b/tests/rest/client/v2_alpha/test_account.py @@ -24,6 +24,7 @@ import pkg_resources import synapse.rest.admin from synapse.api.constants import LoginType, Membership +from synapse.api.errors import Codes from synapse.rest.client.v1 import login, room from synapse.rest.client.v2_alpha import account, register @@ -325,3 +326,304 @@ class DeactivateTestCase(unittest.HomeserverTestCase): ) self.render(request) self.assertEqual(request.code, 200) + + +class ThreepidEmailRestTestCase(unittest.HomeserverTestCase): + + servlets = [ + account.register_servlets, + login.register_servlets, + synapse.rest.admin.register_servlets_for_client_rest_resource, + ] + + def make_homeserver(self, reactor, clock): + config = self.default_config() + + # Email config. + self.email_attempts = [] + + def sendmail(smtphost, from_addr, to_addrs, msg, **kwargs): + self.email_attempts.append(msg) + + config["email"] = { + "enable_notifs": False, + "template_dir": os.path.abspath( + pkg_resources.resource_filename("synapse", "res/templates") + ), + "smtp_host": "127.0.0.1", + "smtp_port": 20, + "require_transport_security": False, + "smtp_user": None, + "smtp_pass": None, + "notif_from": "test@example.com", + } + config["public_baseurl"] = "https://example.com" + + self.hs = self.setup_test_homeserver(config=config, sendmail=sendmail) + return self.hs + + def prepare(self, reactor, clock, hs): + self.store = hs.get_datastore() + + self.user_id = self.register_user("kermit", "test") + self.user_id_tok = self.login("kermit", "test") + self.email = "test@example.com" + self.url_3pid = b"account/3pid" + + def test_add_email(self): + """Test adding an email to profile + """ + client_secret = "foobar" + session_id = self._request_token(self.email, client_secret) + + self.assertEquals(len(self.email_attempts), 1) + link = self._get_link_from_email() + + self._validate_token(link) + + request, channel = self.make_request( + "POST", + b"/_matrix/client/unstable/account/3pid/add", + { + "client_secret": client_secret, + "sid": session_id, + "auth": { + "type": "m.login.password", + "user": self.user_id, + "password": "test", + }, + }, + access_token=self.user_id_tok, + ) + + self.render(request) + self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"]) + + # Get user + request, channel = self.make_request( + "GET", self.url_3pid, access_token=self.user_id_tok, + ) + self.render(request) + + self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"]) + self.assertEqual("email", channel.json_body["threepids"][0]["medium"]) + self.assertEqual(self.email, channel.json_body["threepids"][0]["address"]) + + def test_add_email_if_disabled(self): + """Test adding email to profile when doing so is disallowed + """ + self.hs.config.enable_3pid_changes = False + + client_secret = "foobar" + session_id = self._request_token(self.email, client_secret) + + self.assertEquals(len(self.email_attempts), 1) + link = self._get_link_from_email() + + self._validate_token(link) + + request, channel = self.make_request( + "POST", + b"/_matrix/client/unstable/account/3pid/add", + { + "client_secret": client_secret, + "sid": session_id, + "auth": { + "type": "m.login.password", + "user": self.user_id, + "password": "test", + }, + }, + access_token=self.user_id_tok, + ) + self.render(request) + self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"]) + self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"]) + + # Get user + request, channel = self.make_request( + "GET", self.url_3pid, access_token=self.user_id_tok, + ) + self.render(request) + + self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"]) + self.assertFalse(channel.json_body["threepids"]) + + def test_delete_email(self): + """Test deleting an email from profile + """ + # Add a threepid + self.get_success( + self.store.user_add_threepid( + user_id=self.user_id, + medium="email", + address=self.email, + validated_at=0, + added_at=0, + ) + ) + + request, channel = self.make_request( + "POST", + b"account/3pid/delete", + {"medium": "email", "address": self.email}, + access_token=self.user_id_tok, + ) + self.render(request) + self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"]) + + # Get user + request, channel = self.make_request( + "GET", self.url_3pid, access_token=self.user_id_tok, + ) + self.render(request) + + self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"]) + self.assertFalse(channel.json_body["threepids"]) + + def test_delete_email_if_disabled(self): + """Test deleting an email from profile when disallowed + """ + self.hs.config.enable_3pid_changes = False + + # Add a threepid + self.get_success( + self.store.user_add_threepid( + user_id=self.user_id, + medium="email", + address=self.email, + validated_at=0, + added_at=0, + ) + ) + + request, channel = self.make_request( + "POST", + b"account/3pid/delete", + {"medium": "email", "address": self.email}, + access_token=self.user_id_tok, + ) + self.render(request) + + self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"]) + self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"]) + + # Get user + request, channel = self.make_request( + "GET", self.url_3pid, access_token=self.user_id_tok, + ) + self.render(request) + + self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"]) + self.assertEqual("email", channel.json_body["threepids"][0]["medium"]) + self.assertEqual(self.email, channel.json_body["threepids"][0]["address"]) + + def test_cant_add_email_without_clicking_link(self): + """Test that we do actually need to click the link in the email + """ + client_secret = "foobar" + session_id = self._request_token(self.email, client_secret) + + self.assertEquals(len(self.email_attempts), 1) + + # Attempt to add email without clicking the link + request, channel = self.make_request( + "POST", + b"/_matrix/client/unstable/account/3pid/add", + { + "client_secret": client_secret, + "sid": session_id, + "auth": { + "type": "m.login.password", + "user": self.user_id, + "password": "test", + }, + }, + access_token=self.user_id_tok, + ) + self.render(request) + self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"]) + self.assertEqual(Codes.THREEPID_AUTH_FAILED, channel.json_body["errcode"]) + + # Get user + request, channel = self.make_request( + "GET", self.url_3pid, access_token=self.user_id_tok, + ) + self.render(request) + + self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"]) + self.assertFalse(channel.json_body["threepids"]) + + def test_no_valid_token(self): + """Test that we do actually need to request a token and can't just + make a session up. + """ + client_secret = "foobar" + session_id = "weasle" + + # Attempt to add email without even requesting an email + request, channel = self.make_request( + "POST", + b"/_matrix/client/unstable/account/3pid/add", + { + "client_secret": client_secret, + "sid": session_id, + "auth": { + "type": "m.login.password", + "user": self.user_id, + "password": "test", + }, + }, + access_token=self.user_id_tok, + ) + self.render(request) + self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"]) + self.assertEqual(Codes.THREEPID_AUTH_FAILED, channel.json_body["errcode"]) + + # Get user + request, channel = self.make_request( + "GET", self.url_3pid, access_token=self.user_id_tok, + ) + self.render(request) + + self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"]) + self.assertFalse(channel.json_body["threepids"]) + + def _request_token(self, email, client_secret): + request, channel = self.make_request( + "POST", + b"account/3pid/email/requestToken", + {"client_secret": client_secret, "email": email, "send_attempt": 1}, + ) + self.render(request) + self.assertEquals(200, channel.code, channel.result) + + return channel.json_body["sid"] + + def _validate_token(self, link): + # Remove the host + path = link.replace("https://example.com", "") + + request, channel = self.make_request("GET", path, shorthand=False) + self.render(request) + self.assertEquals(200, channel.code, channel.result) + + def _get_link_from_email(self): + assert self.email_attempts, "No emails have been sent" + + raw_msg = self.email_attempts[-1].decode("UTF-8") + mail = Parser().parsestr(raw_msg) + + text = None + for part in mail.walk(): + if part.get_content_type() == "text/plain": + text = part.get_payload(decode=True).decode("UTF-8") + break + + if not text: + self.fail("Could not find text portion of email to parse") + + match = re.search(r"https://example.com\S+", text) + assert match, "Could not find link in email" + + return match.group(0)