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-rw-r--r--synapse/api/__init__.py1
-rw-r--r--synapse/api/auth.py201
-rw-r--r--synapse/api/constants.py2
-rw-r--r--synapse/api/errors.py4
-rw-r--r--synapse/api/events/__init__.py4
-rw-r--r--synapse/api/events/factory.py22
-rw-r--r--synapse/api/events/utils.py2
7 files changed, 150 insertions, 86 deletions
diff --git a/synapse/api/__init__.py b/synapse/api/__init__.py

index 9bff9ec169..f9811bfa04 100644 --- a/synapse/api/__init__.py +++ b/synapse/api/__init__.py
@@ -12,4 +12,3 @@ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. - diff --git a/synapse/api/auth.py b/synapse/api/auth.py
index e1b1823cd7..c684265101 100644 --- a/synapse/api/auth.py +++ b/synapse/api/auth.py
@@ -21,6 +21,8 @@ from synapse.api.constants import Membership, JoinRules from synapse.api.errors import AuthError, StoreError, Codes, SynapseError from synapse.api.events.room import ( RoomMemberEvent, RoomPowerLevelsEvent, RoomRedactionEvent, + RoomJoinRulesEvent, RoomOpsPowerLevelsEvent, InviteJoinEvent, + RoomCreateEvent, ) from synapse.util.logutils import log_function @@ -47,42 +49,60 @@ class Auth(object): """ try: if hasattr(event, "room_id"): + if event.old_state_events is None: + # Oh, we don't know what the state of the room was, so we + # are trusting that this is allowed (at least for now) + defer.returnValue(True) + + if hasattr(event, "outlier") and event.outlier is True: + # TODO (erikj): Auth for outliers is done differently. + defer.returnValue(True) + is_state = hasattr(event, "state_key") + if event.type == RoomCreateEvent.TYPE: + # FIXME + defer.returnValue(True) + if event.type == RoomMemberEvent.TYPE: - yield self._can_replace_state(event) - allowed = yield self.is_membership_change_allowed(event) + self._can_replace_state(event) + allowed = self.is_membership_change_allowed(event) + if allowed: + logger.debug("Allowing! %s", event) + else: + logger.debug("Denying! %s", event) defer.returnValue(allowed) return - self._check_joined_room( - member=snapshot.membership_state, - user_id=snapshot.user_id, - room_id=snapshot.room_id, - ) + if not event.type == InviteJoinEvent.TYPE: + self.check_event_sender_in_room(event) if is_state: # TODO (erikj): This really only should be called for *new* # state yield self._can_add_state(event) - yield self._can_replace_state(event) + self._can_replace_state(event) else: yield self._can_send_event(event) if event.type == RoomPowerLevelsEvent.TYPE: - yield self._check_power_levels(event) + self._check_power_levels(event) if event.type == RoomRedactionEvent.TYPE: - yield self._check_redaction(event) + self._check_redaction(event) + + logger.debug("Allowing! %s", event) defer.returnValue(True) else: raise AuthError(500, "Unknown event: %s" % event) except AuthError as e: logger.info("Event auth check failed on event %s with msg: %s", event, e.msg) + logger.info("Denying! %s", event) if raises: raise e + defer.returnValue(False) @defer.inlineCallbacks @@ -98,45 +118,72 @@ class Auth(object): pass defer.returnValue(None) + def check_event_sender_in_room(self, event): + key = (RoomMemberEvent.TYPE, event.user_id, ) + member_event = event.state_events.get(key) + + return self._check_joined_room( + member_event, + event.user_id, + event.room_id + ) + def _check_joined_room(self, member, user_id, room_id): if not member or member.membership != Membership.JOIN: raise AuthError(403, "User %s not in room %s (%s)" % ( user_id, room_id, repr(member) )) - @defer.inlineCallbacks + @log_function def is_membership_change_allowed(self, event): target_user_id = event.state_key - # does this room even exist - room = yield self.store.get_room(event.room_id) - if not room: - raise AuthError(403, "Room does not exist") - # get info about the caller - try: - caller = yield self.store.get_room_member( - user_id=event.user_id, - room_id=event.room_id) - except: - caller = None + key = (RoomMemberEvent.TYPE, event.user_id, ) + caller = event.old_state_events.get(key) + caller_in_room = caller and caller.membership == "join" # get info about the target - try: - target = yield self.store.get_room_member( - user_id=target_user_id, - room_id=event.room_id) - except: - target = None + key = (RoomMemberEvent.TYPE, target_user_id, ) + target = event.old_state_events.get(key) + target_in_room = target and target.membership == "join" membership = event.content["membership"] - join_rule = yield self.store.get_room_join_rule(event.room_id) - if not join_rule: + key = (RoomJoinRulesEvent.TYPE, "", ) + join_rule_event = event.old_state_events.get(key) + if join_rule_event: + join_rule = join_rule_event.content.get( + "join_rule", JoinRules.INVITE + ) + else: join_rule = JoinRules.INVITE + user_level = self._get_power_level_from_event_state( + event, + event.user_id, + ) + + ban_level, kick_level, redact_level = ( + self._get_ops_level_from_event_state( + event + ) + ) + + logger.debug( + "is_membership_change_allowed: %s", + { + "caller_in_room": caller_in_room, + "target_in_room": target_in_room, + "membership": membership, + "join_rule": join_rule, + "target_user_id": target_user_id, + "event.user_id": event.user_id, + } + ) + if Membership.INVITE == membership: # TODO (erikj): We should probably handle this more intelligently # PRIVATE join rules. @@ -153,13 +200,10 @@ class Auth(object): # joined: It's a NOOP if event.user_id != target_user_id: raise AuthError(403, "Cannot force another user to join.") - elif join_rule == JoinRules.PUBLIC or room.is_public: + elif join_rule == JoinRules.PUBLIC: pass elif join_rule == JoinRules.INVITE: - if ( - not caller or caller.membership not in - [Membership.INVITE, Membership.JOIN] - ): + if not caller_in_room: raise AuthError(403, "You are not invited to this room.") else: # TODO (erikj): may_join list @@ -171,29 +215,16 @@ class Auth(object): if not caller_in_room: # trying to leave a room you aren't joined raise AuthError(403, "You are not in room %s." % event.room_id) elif target_user_id != event.user_id: - user_level = yield self.store.get_power_level( - event.room_id, - event.user_id, - ) - _, kick_level, _ = yield self.store.get_ops_levels(event.room_id) - if kick_level: kick_level = int(kick_level) else: - kick_level = 50 + kick_level = 50 # FIXME (erikj): What should we do here? if user_level < kick_level: raise AuthError( 403, "You cannot kick user %s." % target_user_id ) elif Membership.BAN == membership: - user_level = yield self.store.get_power_level( - event.room_id, - event.user_id, - ) - - ban_level, _, _ = yield self.store.get_ops_levels(event.room_id) - if ban_level: ban_level = int(ban_level) else: @@ -204,7 +235,30 @@ class Auth(object): else: raise AuthError(500, "Unknown membership %s" % membership) - defer.returnValue(True) + return True + + def _get_power_level_from_event_state(self, event, user_id): + key = (RoomPowerLevelsEvent.TYPE, "", ) + power_level_event = event.old_state_events.get(key) + level = None + if power_level_event: + level = power_level_event.content.get(user_id) + if not level: + level = power_level_event.content.get("default", 0) + + return level + + def _get_ops_level_from_event_state(self, event): + key = (RoomOpsPowerLevelsEvent.TYPE, "", ) + ops_event = event.old_state_events.get(key) + + if ops_event: + return ( + ops_event.content.get("ban_level"), + ops_event.content.get("kick_level"), + ops_event.content.get("redact_level"), + ) + return None, None, None, @defer.inlineCallbacks def get_user_by_req(self, request): @@ -282,8 +336,8 @@ class Auth(object): else: send_level = 0 - user_level = yield self.store.get_power_level( - event.room_id, + user_level = self._get_power_level_from_event_state( + event, event.user_id, ) @@ -308,8 +362,8 @@ class Auth(object): add_level = int(add_level) - user_level = yield self.store.get_power_level( - event.room_id, + user_level = self._get_power_level_from_event_state( + event, event.user_id, ) @@ -322,19 +376,9 @@ class Auth(object): defer.returnValue(True) - @defer.inlineCallbacks def _can_replace_state(self, event): - current_state = yield self.store.get_current_state( - event.room_id, - event.type, - event.state_key, - ) - - if current_state: - current_state = current_state[0] - - user_level = yield self.store.get_power_level( - event.room_id, + user_level = self._get_power_level_from_event_state( + event, event.user_id, ) @@ -346,6 +390,10 @@ class Auth(object): logger.debug( "Checking power level for %s, %s", event.user_id, user_level ) + + key = (event.type, event.state_key, ) + current_state = event.old_state_events.get(key) + if current_state and hasattr(current_state, "required_power_level"): req = current_state.required_power_level @@ -356,10 +404,9 @@ class Auth(object): "You don't have permission to change that state" ) - @defer.inlineCallbacks def _check_redaction(self, event): - user_level = yield self.store.get_power_level( - event.room_id, + user_level = self._get_power_level_from_event_state( + event, event.user_id, ) @@ -368,7 +415,9 @@ class Auth(object): else: user_level = 0 - _, _, redact_level = yield self.store.get_ops_levels(event.room_id) + _, _, redact_level = self._get_ops_level_from_event_state( + event + ) if not redact_level: redact_level = 50 @@ -379,7 +428,6 @@ class Auth(object): "You don't have permission to redact events" ) - @defer.inlineCallbacks def _check_power_levels(self, event): for k, v in event.content.items(): if k == "default": @@ -399,19 +447,16 @@ class Auth(object): except: raise SynapseError(400, "Not a valid power level: %s" % (v,)) - current_state = yield self.store.get_current_state( - event.room_id, - event.type, - event.state_key, - ) + key = (event.type, event.state_key, ) + current_state = event.old_state_events.get(key) if not current_state: return else: current_state = current_state[0] - user_level = yield self.store.get_power_level( - event.room_id, + user_level = self._get_power_level_from_event_state( + event, event.user_id, ) diff --git a/synapse/api/constants.py b/synapse/api/constants.py
index 618d3d7577..3cafff0e32 100644 --- a/synapse/api/constants.py +++ b/synapse/api/constants.py
@@ -58,4 +58,4 @@ class LoginType(object): EMAIL_CODE = u"m.login.email.code" EMAIL_URL = u"m.login.email.url" EMAIL_IDENTITY = u"m.login.email.identity" - RECAPTCHA = u"m.login.recaptcha" \ No newline at end of file + RECAPTCHA = u"m.login.recaptcha" diff --git a/synapse/api/errors.py b/synapse/api/errors.py
index 6d7d499fea..38ccb4f9d1 100644 --- a/synapse/api/errors.py +++ b/synapse/api/errors.py
@@ -54,7 +54,7 @@ class SynapseError(CodeMessageException): """Constructs a synapse error. Args: - code (int): The integer error code (typically an HTTP response code) + code (int): The integer error code (an HTTP response code) msg (str): The human-readable error message. err (str): The error code e.g 'M_FORBIDDEN' """ @@ -67,6 +67,7 @@ class SynapseError(CodeMessageException): self.errcode, ) + class RoomError(SynapseError): """An error raised when a room event fails.""" pass @@ -117,6 +118,7 @@ class InvalidCaptchaError(SynapseError): error_url=self.error_url, ) + class LimitExceededError(SynapseError): """A client has sent too many requests and is being throttled. """ diff --git a/synapse/api/events/__init__.py b/synapse/api/events/__init__.py
index a5a55742e0..b855811b98 100644 --- a/synapse/api/events/__init__.py +++ b/synapse/api/events/__init__.py
@@ -71,7 +71,9 @@ class SynapseEvent(JsonEncodedObject): "outlier", "power_level", "redacted", - "prev_pdus", + "prev_events", + "hashes", + "signatures", ] required_keys = [ diff --git a/synapse/api/events/factory.py b/synapse/api/events/factory.py
index 74d0ef77f4..9134c82eff 100644 --- a/synapse/api/events/factory.py +++ b/synapse/api/events/factory.py
@@ -21,6 +21,8 @@ from synapse.api.events.room import ( RoomRedactionEvent, ) +from synapse.types import EventID + from synapse.util.stringutils import random_string @@ -51,12 +53,26 @@ class EventFactory(object): self.clock = hs.get_clock() self.hs = hs + self.event_id_count = 0 + + def create_event_id(self): + i = str(self.event_id_count) + self.event_id_count += 1 + + local_part = str(int(self.clock.time())) + i + random_string(5) + + e_id = EventID.create_local(local_part, self.hs) + + return e_id.to_string() + def create_event(self, etype=None, **kwargs): kwargs["type"] = etype if "event_id" not in kwargs: - kwargs["event_id"] = "%s@%s" % ( - random_string(10), self.hs.hostname - ) + kwargs["event_id"] = self.create_event_id() + kwargs["origin"] = self.hs.hostname + else: + ev_id = self.hs.parse_eventid(kwargs["event_id"]) + kwargs["origin"] = ev_id.domain if "origin_server_ts" not in kwargs: kwargs["origin_server_ts"] = int(self.clock.time_msec()) diff --git a/synapse/api/events/utils.py b/synapse/api/events/utils.py
index 7fdf45a264..31601fd3a9 100644 --- a/synapse/api/events/utils.py +++ b/synapse/api/events/utils.py
@@ -32,7 +32,7 @@ def prune_event(event): def prune_pdu(pdu): """Removes keys that contain unrestricted and non-essential data from a PDU """ - return _prune_event_or_pdu(pdu.pdu_type, pdu) + return _prune_event_or_pdu(pdu.type, pdu) def _prune_event_or_pdu(event_type, event): # Remove all extraneous fields.