diff options
| -rw-r--r-- | UPGRADE.rst | 2 | ||||
| -rw-r--r-- | changelog.d/4643.misc | 1 | ||||
| -rw-r--r-- | changelog.d/4647.feature | 1 | ||||
| -rw-r--r-- | changelog.d/4657.misc | 1 | ||||
| -rw-r--r-- | synapse/config/key.py | 2 | ||||
| -rw-r--r-- | synapse/config/room_directory.py | 170 | ||||
| -rw-r--r-- | synapse/crypto/keyring.py | 4 | ||||
| -rw-r--r-- | synapse/groups/attestations.py | 7 | ||||
| -rw-r--r-- | synapse/handlers/device.py | 4 | ||||
| -rw-r--r-- | synapse/handlers/directory.py | 29 | ||||
| -rw-r--r-- | synapse/handlers/groups_local.py | 12 | ||||
| -rw-r--r-- | synapse/storage/state.py | 25 | ||||
| -rw-r--r-- | tests/config/test_room_directory.py | 79 | ||||
| -rw-r--r-- | tests/handlers/test_directory.py | 1 |
14 files changed, 297 insertions, 41 deletions
diff --git a/UPGRADE.rst b/UPGRADE.rst index d869b7111b..228222d534 100644 --- a/UPGRADE.rst +++ b/UPGRADE.rst @@ -39,7 +39,7 @@ instructions that may be required are listed later in this document. ./synctl restart -To check whether your update was sucessful, you can check the Server header +To check whether your update was successful, you can check the Server header returned by the Client-Server API: .. code:: bash diff --git a/changelog.d/4643.misc b/changelog.d/4643.misc new file mode 100644 index 0000000000..556cdd2240 --- /dev/null +++ b/changelog.d/4643.misc @@ -0,0 +1 @@ +Reduce number of exceptions we log diff --git a/changelog.d/4647.feature b/changelog.d/4647.feature new file mode 100644 index 0000000000..5a5b1dcebb --- /dev/null +++ b/changelog.d/4647.feature @@ -0,0 +1 @@ +Add configurable room list publishing rules diff --git a/changelog.d/4657.misc b/changelog.d/4657.misc new file mode 100644 index 0000000000..8872765819 --- /dev/null +++ b/changelog.d/4657.misc @@ -0,0 +1 @@ +Fix various spelling mistakes. diff --git a/synapse/config/key.py b/synapse/config/key.py index dce4b19a2d..499ffd4e06 100644 --- a/synapse/config/key.py +++ b/synapse/config/key.py @@ -56,7 +56,7 @@ class KeyConfig(Config): if not self.macaroon_secret_key: # Unfortunately, there are people out there that don't have this # set. Lets just be "nice" and derive one from their secret key. - logger.warn("Config is missing missing macaroon_secret_key") + logger.warn("Config is missing macaroon_secret_key") seed = bytes(self.signing_key[0]) self.macaroon_secret_key = hashlib.sha256(seed).digest() diff --git a/synapse/config/room_directory.py b/synapse/config/room_directory.py index 9da13ab11b..c8e0abbae7 100644 --- a/synapse/config/room_directory.py +++ b/synapse/config/room_directory.py @@ -20,12 +20,37 @@ from ._base import Config, ConfigError class RoomDirectoryConfig(Config): def read_config(self, config): - alias_creation_rules = config["alias_creation_rules"] + alias_creation_rules = config.get("alias_creation_rules") - self._alias_creation_rules = [ - _AliasRule(rule) - for rule in alias_creation_rules - ] + if alias_creation_rules is not None: + self._alias_creation_rules = [ + _RoomDirectoryRule("alias_creation_rules", rule) + for rule in alias_creation_rules + ] + else: + self._alias_creation_rules = [ + _RoomDirectoryRule( + "alias_creation_rules", { + "action": "allow", + } + ) + ] + + room_list_publication_rules = config.get("room_list_publication_rules") + + if room_list_publication_rules is not None: + self._room_list_publication_rules = [ + _RoomDirectoryRule("room_list_publication_rules", rule) + for rule in room_list_publication_rules + ] + else: + self._room_list_publication_rules = [ + _RoomDirectoryRule( + "room_list_publication_rules", { + "action": "allow", + } + ) + ] def default_config(self, config_dir_path, server_name, **kwargs): return """ @@ -33,60 +58,138 @@ class RoomDirectoryConfig(Config): # on this server. # # The format of this option is a list of rules that contain globs that - # match against user_id and the new alias (fully qualified with server - # name). The action in the first rule that matches is taken, which can - # currently either be "allow" or "deny". + # match against user_id, room_id and the new alias (fully qualified with + # server name). The action in the first rule that matches is taken, + # which can currently either be "allow" or "deny". + # + # Missing user_id/room_id/alias fields default to "*". + # + # If no rules match the request is denied. An empty list means no one + # can create aliases. + # + # Options for the rules include: + # + # user_id: Matches against the creator of the alias + # alias: Matches against the alias being created + # room_id: Matches against the room ID the alias is being pointed at + # action: Whether to "allow" or "deny" the request if the rule matches + # + # The default is: + # + # alias_creation_rules: + # - user_id: "*" + # alias: "*" + # room_id: "*" + # action: allow + + # The `room_list_publication_rules` option controls who can publish and + # which rooms can be published in the public room list. + # + # The format of this option is the same as that for + # `alias_creation_rules`. # - # If no rules match the request is denied. - alias_creation_rules: - - user_id: "*" - alias: "*" - action: allow + # If the room has one or more aliases associated with it, only one of + # the aliases needs to match the alias rule. If there are no aliases + # then only rules with `alias: *` match. + # + # If no rules match the request is denied. An empty list means no one + # can publish rooms. + # + # Options for the rules include: + # + # user_id: Matches agaisnt the creator of the alias + # room_id: Matches against the room ID being published + # alias: Matches against any current local or canonical aliases + # associated with the room + # action: Whether to "allow" or "deny" the request if the rule matches + # + # The default is: + # + # room_list_publication_rules: + # - user_id: "*" + # alias: "*" + # room_id: "*" + # action: allow """ - def is_alias_creation_allowed(self, user_id, alias): + def is_alias_creation_allowed(self, user_id, room_id, alias): """Checks if the given user is allowed to create the given alias Args: user_id (str) + room_id (str) alias (str) Returns: boolean: True if user is allowed to crate the alias """ for rule in self._alias_creation_rules: - if rule.matches(user_id, alias): + if rule.matches(user_id, room_id, [alias]): + return rule.action == "allow" + + return False + + def is_publishing_room_allowed(self, user_id, room_id, aliases): + """Checks if the given user is allowed to publish the room + + Args: + user_id (str) + room_id (str) + aliases (list[str]): any local aliases associated with the room + + Returns: + boolean: True if user can publish room + """ + for rule in self._room_list_publication_rules: + if rule.matches(user_id, room_id, aliases): return rule.action == "allow" return False -class _AliasRule(object): - def __init__(self, rule): +class _RoomDirectoryRule(object): + """Helper class to test whether a room directory action is allowed, like + creating an alias or publishing a room. + """ + + def __init__(self, option_name, rule): + """ + Args: + option_name (str): Name of the config option this rule belongs to + rule (dict): The rule as specified in the config + """ + action = rule["action"] - user_id = rule["user_id"] - alias = rule["alias"] + user_id = rule.get("user_id", "*") + room_id = rule.get("room_id", "*") + alias = rule.get("alias", "*") if action in ("allow", "deny"): self.action = action else: raise ConfigError( - "alias_creation_rules rules can only have action of 'allow'" - " or 'deny'" + "%s rules can only have action of 'allow'" + " or 'deny'" % (option_name,) ) + self._alias_matches_all = alias == "*" + try: self._user_id_regex = glob_to_regex(user_id) self._alias_regex = glob_to_regex(alias) + self._room_id_regex = glob_to_regex(room_id) except Exception as e: raise ConfigError("Failed to parse glob into regex: %s", e) - def matches(self, user_id, alias): - """Tests if this rule matches the given user_id and alias. + def matches(self, user_id, room_id, aliases): + """Tests if this rule matches the given user_id, room_id and aliases. Args: user_id (str) - alias (str) + room_id (str) + aliases (list[str]): The associated aliases to the room. Will be a + single element for testing alias creation, and can be empty for + testing room publishing. Returns: boolean @@ -96,7 +199,22 @@ class _AliasRule(object): if not self._user_id_regex.match(user_id): return False - if not self._alias_regex.match(alias): + if not self._room_id_regex.match(room_id): return False - return True + # We only have alias checks left, so we can short circuit if the alias + # rule matches everything. + if self._alias_matches_all: + return True + + # If we are not given any aliases then this rule only matches if the + # alias glob matches all aliases, which we checked above. + if not aliases: + return False + + # Otherwise, we just need one alias to match + for alias in aliases: + if self._alias_regex.match(alias): + return True + + return False diff --git a/synapse/crypto/keyring.py b/synapse/crypto/keyring.py index 3a96980bed..cce40fdd2d 100644 --- a/synapse/crypto/keyring.py +++ b/synapse/crypto/keyring.py @@ -35,7 +35,7 @@ from unpaddedbase64 import decode_base64 from twisted.internet import defer -from synapse.api.errors import Codes, SynapseError +from synapse.api.errors import Codes, RequestSendFailed, SynapseError from synapse.util import logcontext, unwrapFirstError from synapse.util.logcontext import ( LoggingContext, @@ -656,7 +656,7 @@ def _handle_key_deferred(verify_request): try: with PreserveLoggingContext(): _, key_id, verify_key = yield verify_request.deferred - except IOError as e: + except (IOError, RequestSendFailed) as e: logger.warn( "Got IOError when downloading keys for %s: %s %s", server_name, type(e).__name__, str(e), diff --git a/synapse/groups/attestations.py b/synapse/groups/attestations.py index b04f4234ca..786149be65 100644 --- a/synapse/groups/attestations.py +++ b/synapse/groups/attestations.py @@ -42,7 +42,7 @@ from signedjson.sign import sign_json from twisted.internet import defer -from synapse.api.errors import SynapseError +from synapse.api.errors import RequestSendFailed, SynapseError from synapse.metrics.background_process_metrics import run_as_background_process from synapse.types import get_domain_from_id from synapse.util.logcontext import run_in_background @@ -191,6 +191,11 @@ class GroupAttestionRenewer(object): yield self.store.update_attestation_renewal( group_id, user_id, attestation ) + except RequestSendFailed as e: + logger.warning( + "Failed to renew attestation of %r in %r: %s", + user_id, group_id, e, + ) except Exception: logger.exception("Error renewing attestation of %r in %r", user_id, group_id) diff --git a/synapse/handlers/device.py b/synapse/handlers/device.py index 8955cde4ed..6eddb10e0d 100644 --- a/synapse/handlers/device.py +++ b/synapse/handlers/device.py @@ -20,7 +20,7 @@ from twisted.internet import defer from synapse.api import errors from synapse.api.constants import EventTypes -from synapse.api.errors import FederationDeniedError +from synapse.api.errors import FederationDeniedError, RequestSendFailed from synapse.types import RoomStreamToken, get_domain_from_id from synapse.util import stringutils from synapse.util.async_helpers import Linearizer @@ -504,7 +504,7 @@ class DeviceListEduUpdater(object): origin = get_domain_from_id(user_id) try: result = yield self.federation.query_user_devices(origin, user_id) - except NotRetryingDestination: + except (NotRetryingDestination, RequestSendFailed): # TODO: Remember that we are now out of sync and try again # later logger.warn( diff --git a/synapse/handlers/directory.py b/synapse/handlers/directory.py index 6bb254f899..8b113307d2 100644 --- a/synapse/handlers/directory.py +++ b/synapse/handlers/directory.py @@ -112,7 +112,9 @@ class DirectoryHandler(BaseHandler): 403, "This user is not permitted to create this alias", ) - if not self.config.is_alias_creation_allowed(user_id, room_alias.to_string()): + if not self.config.is_alias_creation_allowed( + user_id, room_id, room_alias.to_string(), + ): # Lets just return a generic message, as there may be all sorts of # reasons why we said no. TODO: Allow configurable error messages # per alias creation rule? @@ -395,9 +397,9 @@ class DirectoryHandler(BaseHandler): room_id (str) visibility (str): "public" or "private" """ - if not self.spam_checker.user_may_publish_room( - requester.user.to_string(), room_id - ): + user_id = requester.user.to_string() + + if not self.spam_checker.user_may_publish_room(user_id, room_id): raise AuthError( 403, "This user is not permitted to publish rooms to the room list" @@ -415,7 +417,24 @@ class DirectoryHandler(BaseHandler): yield self.auth.check_can_change_room_list(room_id, requester.user) - yield self.store.set_room_is_public(room_id, visibility == "public") + making_public = visibility == "public" + if making_public: + room_aliases = yield self.store.get_aliases_for_room(room_id) + canonical_alias = yield self.store.get_canonical_alias_for_room(room_id) + if canonical_alias: + room_aliases.append(canonical_alias) + + if not self.config.is_publishing_room_allowed( + user_id, room_id, room_aliases, + ): + # Lets just return a generic message, as there may be all sorts of + # reasons why we said no. TODO: Allow configurable error messages + # per alias creation rule? + raise SynapseError( + 403, "Not allowed to publish room", + ) + + yield self.store.set_room_is_public(room_id, making_public) @defer.inlineCallbacks def edit_published_appservice_room_list(self, appservice_id, network_id, diff --git a/synapse/handlers/groups_local.py b/synapse/handlers/groups_local.py index 173315af6c..02c508acec 100644 --- a/synapse/handlers/groups_local.py +++ b/synapse/handlers/groups_local.py @@ -20,7 +20,7 @@ from six import iteritems from twisted.internet import defer -from synapse.api.errors import HttpResponseException, SynapseError +from synapse.api.errors import HttpResponseException, RequestSendFailed, SynapseError from synapse.types import get_domain_from_id logger = logging.getLogger(__name__) @@ -46,13 +46,19 @@ def _create_rerouter(func_name): # when the remote end responds with things like 403 Not # In Group, we can communicate that to the client instead # of a 500. - def h(failure): + def http_response_errback(failure): failure.trap(HttpResponseException) e = failure.value if e.code == 403: raise e.to_synapse_error() return failure - d.addErrback(h) + + def request_failed_errback(failure): + failure.trap(RequestSendFailed) + raise SynapseError(502, "Failed to contact group server") + + d.addErrback(http_response_errback) + d.addErrback(request_failed_errback) return d return f diff --git a/synapse/storage/state.py b/synapse/storage/state.py index d14a7b2538..6ddc4055d2 100644 --- a/synapse/storage/state.py +++ b/synapse/storage/state.py @@ -548,6 +548,31 @@ class StateGroupWorkerStore(EventsWorkerStore, SQLBaseStore): _get_filtered_current_state_ids_txn, ) + @defer.inlineCallbacks + def get_canonical_alias_for_room(self, room_id): + """Get canonical alias for room, if any + + Args: + room_id (str) + + Returns: + Deferred[str|None]: The canonical alias, if any + """ + + state = yield self.get_filtered_current_state_ids(room_id, StateFilter.from_types( + [(EventTypes.CanonicalAlias, "")] + )) + + event_id = state.get((EventTypes.CanonicalAlias, "")) + if not event_id: + return + + event = yield self.get_event(event_id, allow_none=True) + if not event: + return + + defer.returnValue(event.content.get("canonical_alias")) + @cached(max_entries=10000, iterable=True) def get_state_group_delta(self, state_group): """Given a state group try to return a previous group and a delta between diff --git a/tests/config/test_room_directory.py b/tests/config/test_room_directory.py index f37a17d618..3dc2631523 100644 --- a/tests/config/test_room_directory.py +++ b/tests/config/test_room_directory.py @@ -36,6 +36,8 @@ class RoomDirectoryConfigTestCase(unittest.TestCase): - user_id: "@gah:example.com" alias: "#goo:example.com" action: "allow" + + room_list_publication_rules: [] """) rd_config = RoomDirectoryConfig() @@ -43,25 +45,102 @@ class RoomDirectoryConfigTestCase(unittest.TestCase): self.assertFalse(rd_config.is_alias_creation_allowed( user_id="@bob:example.com", + room_id="!test", alias="#test:example.com", )) self.assertTrue(rd_config.is_alias_creation_allowed( user_id="@test:example.com", + room_id="!test", alias="#unofficial_st:example.com", )) self.assertTrue(rd_config.is_alias_creation_allowed( user_id="@foobar:example.com", + room_id="!test", alias="#test:example.com", )) self.assertTrue(rd_config.is_alias_creation_allowed( user_id="@gah:example.com", + room_id="!test", alias="#goo:example.com", )) self.assertFalse(rd_config.is_alias_creation_allowed( user_id="@test:example.com", + room_id="!test", alias="#test:example.com", )) + + def test_room_publish_acl(self): + config = yaml.load(""" + alias_creation_rules: [] + + room_list_publication_rules: + - user_id: "*bob*" + alias: "*" + action: "deny" + - user_id: "*" + alias: "#unofficial_*" + action: "allow" + - user_id: "@foo*:example.com" + alias: "*" + action: "allow" + - user_id: "@gah:example.com" + alias: "#goo:example.com" + action: "allow" + - room_id: "!test-deny" + action: "deny" + """) + + rd_config = RoomDirectoryConfig() + rd_config.read_config(config) + + self.assertFalse(rd_config.is_publishing_room_allowed( + user_id="@bob:example.com", + room_id="!test", + aliases=["#test:example.com"], + )) + + self.assertTrue(rd_config.is_publishing_room_allowed( + user_id="@test:example.com", + room_id="!test", + aliases=["#unofficial_st:example.com"], + )) + + self.assertTrue(rd_config.is_publishing_room_allowed( + user_id="@foobar:example.com", + room_id="!test", + aliases=[], + )) + + self.assertTrue(rd_config.is_publishing_room_allowed( + user_id="@gah:example.com", + room_id="!test", + aliases=["#goo:example.com"], + )) + + self.assertFalse(rd_config.is_publishing_room_allowed( + user_id="@test:example.com", + room_id="!test", + aliases=["#test:example.com"], + )) + + self.assertTrue(rd_config.is_publishing_room_allowed( + user_id="@foobar:example.com", + room_id="!test-deny", + aliases=[], + )) + + self.assertFalse(rd_config.is_publishing_room_allowed( + user_id="@gah:example.com", + room_id="!test-deny", + aliases=[], + )) + + self.assertTrue(rd_config.is_publishing_room_allowed( + user_id="@test:example.com", + room_id="!test", + aliases=["#unofficial_st:example.com", "#blah:example.com"], + )) diff --git a/tests/handlers/test_directory.py b/tests/handlers/test_directory.py index 8ae6556c0a..9bf395e923 100644 --- a/tests/handlers/test_directory.py +++ b/tests/handlers/test_directory.py @@ -121,6 +121,7 @@ class TestCreateAliasACL(unittest.HomeserverTestCase): "action": "allow", } ] + config["room_list_publication_rules"] = [] rd_config = RoomDirectoryConfig() rd_config.read_config(config) |