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Replace context.current_state with context.current_state_ids

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This commit is contained in:
Erik Johnston 2016-08-25 17:32:22 +01:00
parent 17f4f14df7
commit a3dc1e9cbe
15 changed files with 435 additions and 270 deletions
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68
synapse/api/auth.py
View File

@ -52,7 +52,7 @@ class Auth(object):
self.state = hs.get_state_handler()
self.TOKEN_NOT_FOUND_HTTP_STATUS = 401
# Docs for these currently lives at
# https://github.com/matrix-org/matrix-doc/blob/master/drafts/macaroons_caveats.rst
# github.com/matrix-org/matrix-doc/blob/master/drafts/macaroons_caveats.rst
# In addition, we have type == delete_pusher which grants access only to
# delete pushers.
self._KNOWN_CAVEAT_PREFIXES = set([
@ -63,6 +63,17 @@ class Auth(object):
"user_id = ",
])
@defer.inlineCallbacks
def check_from_context(self, event, context, do_sig_check=True):
auth_events_ids = yield self.compute_auth_events(
event, context.current_state_ids, for_verification=True,
)
auth_events = yield self.store.get_events(auth_events_ids)
auth_events = {
(e.type, e.state_key): e for e in auth_events.values()
}
self.check(event, auth_events=auth_events, do_sig_check=False)
def check(self, event, auth_events, do_sig_check=True):
""" Checks if this event is correctly authed.
@ -847,7 +858,7 @@ class Auth(object):
@defer.inlineCallbacks
def add_auth_events(self, builder, context):
auth_ids = self.compute_auth_events(builder, context.current_state)
auth_ids = yield self.compute_auth_events(builder, context.current_state_ids)
auth_events_entries = yield self.store.add_event_hashes(
auth_ids
@ -855,30 +866,32 @@ class Auth(object):
builder.auth_events = auth_events_entries
def compute_auth_events(self, event, current_state):
@defer.inlineCallbacks
def compute_auth_events(self, event, current_state_ids, for_verification=False):
if event.type == EventTypes.Create:
return []
defer.returnValue([])
auth_ids = []
key = (EventTypes.PowerLevels, "", )
power_level_event = current_state.get(key)
power_level_event_id = current_state_ids.get(key)
if power_level_event:
auth_ids.append(power_level_event.event_id)
if power_level_event_id:
auth_ids.append(power_level_event_id)
key = (EventTypes.JoinRules, "", )
join_rule_event = current_state.get(key)
join_rule_event_id = current_state_ids.get(key)
key = (EventTypes.Member, event.user_id, )
member_event = current_state.get(key)
member_event_id = current_state_ids.get(key)
key = (EventTypes.Create, "", )
create_event = current_state.get(key)
if create_event:
auth_ids.append(create_event.event_id)
create_event_id = current_state_ids.get(key)
if create_event_id:
auth_ids.append(create_event_id)
if join_rule_event:
if join_rule_event_id:
join_rule_event = yield self.store.get_event(join_rule_event_id)
join_rule = join_rule_event.content.get("join_rule")
is_public = join_rule == JoinRules.PUBLIC if join_rule else False
else:
@ -887,15 +900,21 @@ class Auth(object):
if event.type == EventTypes.Member:
e_type = event.content["membership"]
if e_type in [Membership.JOIN, Membership.INVITE]:
if join_rule_event:
auth_ids.append(join_rule_event.event_id)
if join_rule_event_id:
auth_ids.append(join_rule_event_id)
if e_type == Membership.JOIN:
if member_event and not is_public:
auth_ids.append(member_event.event_id)
if member_event_id and not is_public:
auth_ids.append(member_event_id)
else:
if member_event:
auth_ids.append(member_event.event_id)
if member_event_id:
auth_ids.append(member_event_id)
if for_verification:
key = (EventTypes.Member, event.state_key, )
existing_event_id = current_state_ids.get(key)
if existing_event_id:
auth_ids.append(existing_event_id)
if e_type == Membership.INVITE:
if "third_party_invite" in event.content:
@ -903,14 +922,15 @@ class Auth(object):
EventTypes.ThirdPartyInvite,
event.content["third_party_invite"]["signed"]["token"]
)
third_party_invite = current_state.get(key)
if third_party_invite:
auth_ids.append(third_party_invite.event_id)
elif member_event:
third_party_invite_id = current_state_ids.get(key)
if third_party_invite_id:
auth_ids.append(third_party_invite_id)
elif member_event_id:
member_event = yield self.store.get_event(member_event_id)
if member_event.content["membership"] == Membership.JOIN:
auth_ids.append(member_event.event_id)
return auth_ids
defer.returnValue(auth_ids)
def _get_send_level(self, etype, state_key, auth_events):
key = (EventTypes.PowerLevels, "", )

13
synapse/events/snapshot.py
View File

@ -15,17 +15,8 @@
class EventContext(object):
def _set_current_state(self, current_state):
if current_state is not None:
self.current_state_ids = {k: e.event_id for k, e in current_state.items()}
else:
self.current_state_ids = None
self._current_state = current_state
current_state = property(lambda self: self._current_state, _set_current_state)
def __init__(self, current_state=None):
self.current_state = current_state
def __init__(self, current_state_ids=None):
self.current_state_ids = current_state_ids
self.state_group = None
self.rejected = False
self.push_actions = []

30
synapse/handlers/_base.py
View File

@ -65,33 +65,21 @@ class BaseHandler(object):
retry_after_ms=int(1000 * (time_allowed - time_now)),
)
def is_host_in_room(self, current_state):
room_members = [
(state_key, event.membership)
for ((event_type, state_key), event) in current_state.items()
if event_type == EventTypes.Member
]
if len(room_members) == 0:
# Have we just created the room, and is this about to be the very
# first member event?
create_event = current_state.get(("m.room.create", ""))
if create_event:
return True
for (state_key, membership) in room_members:
if (
self.hs.is_mine_id(state_key)
and membership == Membership.JOIN
):
return True
return False
@defer.inlineCallbacks
def maybe_kick_guest_users(self, event, current_state):
def maybe_kick_guest_users(self, event, context=None):
# Technically this function invalidates current_state by changing it.
# Hopefully this isn't that important to the caller.
if event.type == EventTypes.GuestAccess:
guest_access = event.content.get("guest_access", "forbidden")
if guest_access != "can_join":
if context:
current_state = yield self.store.get_events(
context.current_state_ids.values()
)
current_state = current_state.values()
else:
current_state = yield self.store.get_current_state(event.room_id)
logger.info("maybe_kick_guest_users %r", current_state)
yield self.kick_guest_users(current_state)
@defer.inlineCallbacks

112
synapse/handlers/federation.py
View File

@ -217,11 +217,21 @@ class FederationHandler(BaseHandler):
if event.type == EventTypes.Member:
if event.membership == Membership.JOIN:
prev_state = context.current_state.get((event.type, event.state_key))
if not prev_state or prev_state.membership != Membership.JOIN:
# Only fire user_joined_room if the user has acutally
# joined the room. Don't bother if the user is just
# changing their profile info.
# Only fire user_joined_room if the user has acutally
# joined the room. Don't bother if the user is just
# changing their profile info.
newly_joined = True
prev_state_id = context.current_state_ids.get(
(event.type, event.state_key)
)
if prev_state_id:
prev_state = yield self.store.get_event(
prev_state_id, allow_none=True,
)
if prev_state and prev_state.membership == Membership.JOIN:
newly_joined = False
if newly_joined:
user = UserID.from_string(event.state_key)
yield user_joined_room(self.distributor, user, event.room_id)
@ -734,7 +744,7 @@ class FederationHandler(BaseHandler):
# The remote hasn't signed it yet, obviously. We'll do the full checks
# when we get the event back in `on_send_join_request`
self.auth.check(event, auth_events=context.current_state, do_sig_check=False)
yield self.auth.check_from_context(event, context, do_sig_check=False)
defer.returnValue(event)
@ -782,18 +792,11 @@ class FederationHandler(BaseHandler):
new_pdu = event
destinations = set()
for k, s in context.current_state.items():
try:
if k[0] == EventTypes.Member:
if s.content["membership"] == Membership.JOIN:
destinations.add(get_domain_from_id(s.state_key))
except:
logger.warn(
"Failed to get destination from event %s", s.event_id
)
message_handler = self.hs.get_handlers().message_handler
destinations = yield message_handler.get_joined_hosts_for_room_from_state(
context
)
destinations = set(destinations)
destinations.discard(origin)
logger.debug(
@ -804,13 +807,15 @@ class FederationHandler(BaseHandler):
self.replication_layer.send_pdu(new_pdu, destinations)
state_ids = [e.event_id for e in context.current_state.values()]
state_ids = context.current_state_ids.values()
auth_chain = yield self.store.get_auth_chain(set(
[event.event_id] + state_ids
))
state = yield self.store.get_events(context.current_state_ids.values())
defer.returnValue({
"state": context.current_state.values(),
"state": state.values(),
"auth_chain": auth_chain,
})
@ -966,7 +971,7 @@ class FederationHandler(BaseHandler):
try:
# The remote hasn't signed it yet, obviously. We'll do the full checks
# when we get the event back in `on_send_leave_request`
self.auth.check(event, auth_events=context.current_state, do_sig_check=False)
yield self.auth.check_from_context(event, context, do_sig_check=False)
except AuthError as e:
logger.warn("Failed to create new leave %r because %s", event, e)
raise e
@ -1010,18 +1015,11 @@ class FederationHandler(BaseHandler):
new_pdu = event
destinations = set()
for k, s in context.current_state.items():
try:
if k[0] == EventTypes.Member:
if s.content["membership"] == Membership.LEAVE:
destinations.add(get_domain_from_id(s.state_key))
except:
logger.warn(
"Failed to get destination from event %s", s.event_id
)
message_handler = self.hs.get_handlers().message_handler
destinations = yield message_handler.get_joined_hosts_for_room_from_state(
context
)
destinations = set(destinations)
destinations.discard(origin)
logger.debug(
@ -1306,7 +1304,13 @@ class FederationHandler(BaseHandler):
)
if not auth_events:
auth_events = context.current_state
auth_events_ids = yield self.auth.compute_auth_events(
event, context.current_state_ids, for_verification=True,
)
auth_events = yield self.store.get_events(auth_events_ids)
auth_events = {
(e.type, e.state_key): e for e in auth_events.values()
}
# This is a hack to fix some old rooms where the initial join event
# didn't reference the create event in its auth events.
@ -1332,8 +1336,7 @@ class FederationHandler(BaseHandler):
context.rejected = RejectedReason.AUTH_ERROR
if event.type == EventTypes.GuestAccess:
full_context = yield self.store.get_current_state(room_id=event.room_id)
yield self.maybe_kick_guest_users(event, full_context)
yield self.maybe_kick_guest_users(event)
defer.returnValue(context)
@ -1504,7 +1507,9 @@ class FederationHandler(BaseHandler):
current_state = set(e.event_id for e in auth_events.values())
different_auth = event_auth_events - current_state
context.current_state.update(auth_events)
context.current_state_ids.update({
k: a.event_id for k, a in auth_events.items()
})
context.state_group = None
if different_auth and not event.internal_metadata.is_outlier():
@ -1526,8 +1531,8 @@ class FederationHandler(BaseHandler):
if do_resolution:
# 1. Get what we think is the auth chain.
auth_ids = self.auth.compute_auth_events(
event, context.current_state
auth_ids = yield self.auth.compute_auth_events(
event, context.current_state_ids
)
local_auth_chain = yield self.store.get_auth_chain(auth_ids)
@ -1583,7 +1588,9 @@ class FederationHandler(BaseHandler):
# 4. Look at rejects and their proofs.
# TODO.
context.current_state.update(auth_events)
context.current_state_ids.update({
k: a.event_id for k, a in auth_events.items()
})
context.state_group = None
try:
@ -1770,12 +1777,12 @@ class FederationHandler(BaseHandler):
)
try:
self.auth.check(event, context.current_state)
yield self.auth.check_from_context(event, context)
except AuthError as e:
logger.warn("Denying new third party invite %r because %s", event, e)
raise e
yield self._check_signature(event, auth_events=context.current_state)
yield self._check_signature(event, context)
member_handler = self.hs.get_handlers().room_member_handler
yield member_handler.send_membership_event(None, event, context)
else:
@ -1801,11 +1808,11 @@ class FederationHandler(BaseHandler):
)
try:
self.auth.check(event, auth_events=context.current_state)
self.auth.check_from_context(event, context)
except AuthError as e:
logger.warn("Denying third party invite %r because %s", event, e)
raise e
yield self._check_signature(event, auth_events=context.current_state)
yield self._check_signature(event, context)
returned_invite = yield self.send_invite(origin, event)
# TODO: Make sure the signatures actually are correct.
@ -1819,7 +1826,12 @@ class FederationHandler(BaseHandler):
EventTypes.ThirdPartyInvite,
event.content["third_party_invite"]["signed"]["token"]
)
original_invite = context.current_state.get(key)
original_invite = None
original_invite_id = context.current_state_ids.get(key)
if original_invite_id:
original_invite = yield self.store.get_event(
original_invite_id, allow_none=True
)
if not original_invite:
logger.info(
"Could not find invite event for third_party_invite - "
@ -1836,13 +1848,13 @@ class FederationHandler(BaseHandler):
defer.returnValue((event, context))
@defer.inlineCallbacks
def _check_signature(self, event, auth_events):
def _check_signature(self, event, context):
"""
Checks that the signature in the event is consistent with its invite.
Args:
event (Event): The m.room.member event to check
auth_events (dict<(event type, state_key), event>):
context (EventContext):
Raises:
AuthError: if signature didn't match any keys, or key has been
@ -1853,10 +1865,14 @@ class FederationHandler(BaseHandler):
signed = event.content["third_party_invite"]["signed"]
token = signed["token"]
invite_event = auth_events.get(
invite_event_id = context.current_state_ids.get(
(EventTypes.ThirdPartyInvite, token,)
)
invite_event = None
if invite_event_id:
invite_event = yield self.store.get_event(invite_event_id, allow_none=True)
if not invite_event:
raise AuthError(403, "Could not find invite")

91
synapse/handlers/message.py
View File

@ -30,6 +30,7 @@ from synapse.util.async import concurrently_execute, run_on_reactor, ReadWriteLo
from synapse.util.caches.snapshot_cache import SnapshotCache
from synapse.util.logcontext import preserve_fn, preserve_context_over_deferred
from synapse.util.metrics import measure_func
from synapse.util.caches.descriptors import cachedInlineCallbacks
from synapse.visibility import filter_events_for_client
from ._base import BaseHandler
@ -248,7 +249,7 @@ class MessageHandler(BaseHandler):
assert self.hs.is_mine(user), "User must be our own: %s" % (user,)
if event.is_state():
prev_state = self.deduplicate_state_event(event, context)
prev_state = yield self.deduplicate_state_event(event, context)
if prev_state is not None:
defer.returnValue(prev_state)
@ -263,6 +264,7 @@ class MessageHandler(BaseHandler):
presence = self.hs.get_presence_handler()
yield presence.bump_presence_active_time(user)
@defer.inlineCallbacks
def deduplicate_state_event(self, event, context):
"""
Checks whether event is in the latest resolved state in context.
@ -270,13 +272,17 @@ class MessageHandler(BaseHandler):
If so, returns the version of the event in context.
Otherwise, returns None.
"""
prev_event = context.current_state.get((event.type, event.state_key))
prev_event_id = context.current_state_ids.get((event.type, event.state_key))
prev_event = yield self.store.get_event(prev_event_id, allow_none=True)
if not prev_event:
return
if prev_event and event.user_id == prev_event.user_id:
prev_content = encode_canonical_json(prev_event.content)
next_content = encode_canonical_json(event.content)
if prev_content == next_content:
return prev_event
return None
defer.returnValue(prev_event)
return
@defer.inlineCallbacks
def create_and_send_nonmember_event(
@ -803,7 +809,7 @@ class MessageHandler(BaseHandler):
logger.debug(
"Created event %s with current state: %s",
event.event_id, context.current_state,
event.event_id, context.current_state_ids,
)
defer.returnValue(
@ -826,12 +832,12 @@ class MessageHandler(BaseHandler):
self.ratelimit(requester)
try:
self.auth.check(event, auth_events=context.current_state)
yield self.auth.check_from_context(event, context)
except AuthError as err:
logger.warn("Denying new event %r because %s", event, err)
raise err
yield self.maybe_kick_guest_users(event, context.current_state.values())
yield self.maybe_kick_guest_users(event, context)
if event.type == EventTypes.CanonicalAlias:
# Check the alias is acually valid (at this time at least)
@ -859,6 +865,15 @@ class MessageHandler(BaseHandler):
e.sender == event.sender
)
state_to_include_ids = [
e_id
for k, e_id in context.current_state_ids.items()
if k[0] in self.hs.config.room_invite_state_types
or k[0] == EventTypes.Member and k[1] == event.sender
]
state_to_include = yield self.store.get_events(state_to_include_ids)
event.unsigned["invite_room_state"] = [
{
"type": e.type,
@ -866,9 +881,7 @@ class MessageHandler(BaseHandler):
"content": e.content,
"sender": e.sender,
}
for k, e in context.current_state.items()
if e.type in self.hs.config.room_invite_state_types
or is_inviter_member_event(e)
for e in state_to_include.values()
]
invitee = UserID.from_string(event.state_key)
@ -890,7 +903,14 @@ class MessageHandler(BaseHandler):
)
if event.type == EventTypes.Redaction:
if self.auth.check_redaction(event, auth_events=context.current_state):
auth_events_ids = yield self.auth.compute_auth_events(
event, context.current_state_ids, for_verification=True,
)
auth_events = yield self.store.get_events(auth_events_ids)
auth_events = {
(e.type, e.state_key): e for e in auth_events.values()
}
if self.auth.check_redaction(event, auth_events=auth_events):
original_event = yield self.store.get_event(
event.redacts,
check_redacted=False,
@ -904,7 +924,7 @@ class MessageHandler(BaseHandler):
"You don't have permission to redact events"
)
if event.type == EventTypes.Create and context.current_state:
if event.type == EventTypes.Create and context.current_state_ids:
raise AuthError(
403,
"Changing the room create event is forbidden",
@ -925,16 +945,7 @@ class MessageHandler(BaseHandler):
event_stream_id, max_stream_id
)
destinations = set()
for k, s in context.current_state.items():
try:
if k[0] == EventTypes.Member:
if s.content["membership"] == Membership.JOIN:
destinations.add(get_domain_from_id(s.state_key))
except SynapseError:
logger.warn(
"Failed to get destination from event %s", s.event_id
)
destinations = yield self.get_joined_hosts_for_room_from_state(context)
@defer.inlineCallbacks
def _notify():
@ -952,3 +963,39 @@ class MessageHandler(BaseHandler):
preserve_fn(federation_handler.handle_new_event)(
event, destinations=destinations,
)
def get_joined_hosts_for_room_from_state(self, context):
state_group = context.state_group
if not state_group:
# If state_group is None it means it has yet to be assigned a
# state group, i.e. we need to make sure that calls with a state_group
# of None don't hit previous cached calls with a None state_group.
# To do this we set the state_group to a new object as object() != object()
state_group = object()
return self._get_joined_hosts_for_room_from_state(
state_group, context.current_state_ids
)
@cachedInlineCallbacks(num_args=1, cache_context=True)
def _get_joined_hosts_for_room_from_state(self, state_group, current_state_ids,
cache_context):
# Don't bother getting state for people on the same HS
current_state = yield self.store.get_events([
e_id for key, e_id in current_state_ids.items()
if key[0] == EventTypes.Member and not self.hs.is_mine_id(key[1])
])
destinations = set()
for e in current_state.itervalues():
try:
if e.type == EventTypes.Member:
if e.content["membership"] == Membership.JOIN:
destinations.add(get_domain_from_id(e.state_key))
except SynapseError:
logger.warn(
"Failed to get destination from event %s", e.event_id
)
defer.returnValue(destinations)

124
synapse/handlers/room_member.py
View File

@ -93,20 +93,26 @@ class RoomMemberHandler(BaseHandler):
ratelimit=ratelimit,
)
prev_member_event = context.current_state.get(
prev_member_event_id = context.current_state_ids.get(
(EventTypes.Member, target.to_string()),
None
)
if event.membership == Membership.JOIN:
if not prev_member_event or prev_member_event.membership != Membership.JOIN:
# Only fire user_joined_room if the user has acutally joined the
# room. Don't bother if the user is just changing their profile
# info.
# Only fire user_joined_room if the user has acutally joined the
# room. Don't bother if the user is just changing their profile
# info.
newly_joined = True
if prev_member_event_id:
prev_member_event = yield self.store.get_event(prev_member_event_id)
newly_joined = prev_member_event.membership != Membership.JOIN
if newly_joined:
yield user_joined_room(self.distributor, target, room_id)
elif event.membership == Membership.LEAVE:
if prev_member_event and prev_member_event.membership == Membership.JOIN:
user_left_room(self.distributor, target, room_id)
if prev_member_event_id:
prev_member_event = yield self.store.get_event(prev_member_event_id)
if prev_member_event.membership == Membership.JOIN:
user_left_room(self.distributor, target, room_id)
@defer.inlineCallbacks
def remote_join(self, remote_room_hosts, room_id, user, content):
@ -195,29 +201,32 @@ class RoomMemberHandler(BaseHandler):
remote_room_hosts = []
latest_event_ids = yield self.store.get_latest_event_ids_in_room(room_id)
current_state = yield self.state_handler.get_current_state(
current_state_ids = yield self.state_handler.get_current_state_ids(
room_id, latest_event_ids=latest_event_ids,
)
old_state = current_state.get((EventTypes.Member, target.to_string()))
old_membership = old_state.content.get("membership") if old_state else None
if action == "unban" and old_membership != "ban":
raise SynapseError(
403,
"Cannot unban user who was not banned (membership=%s)" % old_membership,
errcode=Codes.BAD_STATE
)
if old_membership == "ban" and action != "unban":
raise SynapseError(
403,
"Cannot %s user who was banned" % (action,),
errcode=Codes.BAD_STATE
)
old_state_id = current_state_ids.get((EventTypes.Member, target.to_string()))
if old_state_id:
old_state = yield self.store.get_event(old_state_id, allow_none=True)
old_membership = old_state.content.get("membership") if old_state else None
if action == "unban" and old_membership != "ban":
raise SynapseError(
403,
"Cannot unban user who was not banned"
" (membership=%s)" % old_membership,
errcode=Codes.BAD_STATE
)
if old_membership == "ban" and action != "unban":
raise SynapseError(
403,
"Cannot %s user who was banned" % (action,),
errcode=Codes.BAD_STATE
)
is_host_in_room = self.is_host_in_room(current_state)
is_host_in_room = yield self._is_host_in_room(current_state_ids)
if effective_membership_state == Membership.JOIN:
if requester.is_guest and not self._can_guest_join(current_state):
if requester.is_guest and not self._can_guest_join(current_state_ids):
# This should be an auth check, but guests are a local concept,
# so don't really fit into the general auth process.
raise AuthError(403, "Guest access not allowed")
@ -326,15 +335,17 @@ class RoomMemberHandler(BaseHandler):
requester = synapse.types.create_requester(target_user)
message_handler = self.hs.get_handlers().message_handler
prev_event = message_handler.deduplicate_state_event(event, context)
prev_event = yield message_handler.deduplicate_state_event(event, context)
if prev_event is not None:
return
if event.membership == Membership.JOIN:
if requester.is_guest and not self._can_guest_join(context.current_state):
# This should be an auth check, but guests are a local concept,
# so don't really fit into the general auth process.
raise AuthError(403, "Guest access not allowed")
if requester.is_guest:
guest_can_join = yield self._can_guest_join(context.current_state_ids)
if not guest_can_join:
# This should be an auth check, but guests are a local concept,
# so don't really fit into the general auth process.
raise AuthError(403, "Guest access not allowed")
yield message_handler.handle_new_client_event(
requester,
@ -344,27 +355,39 @@ class RoomMemberHandler(BaseHandler):
ratelimit=ratelimit,
)
prev_member_event = context.current_state.get(
(EventTypes.Member, target_user.to_string()),
prev_member_event_id = context.current_state_ids.get(
(EventTypes.Member, event.state_key),
None
)
if event.membership == Membership.JOIN:
if not prev_member_event or prev_member_event.membership != Membership.JOIN:
# Only fire user_joined_room if the user has acutally joined the
# room. Don't bother if the user is just changing their profile
# info.
# Only fire user_joined_room if the user has acutally joined the
# room. Don't bother if the user is just changing their profile
# info.
newly_joined = True
if prev_member_event_id:
prev_member_event = yield self.store.get_event(prev_member_event_id)
newly_joined = prev_member_event.membership != Membership.JOIN
if newly_joined:
yield user_joined_room(self.distributor, target_user, room_id)
elif event.membership == Membership.LEAVE:
if prev_member_event and prev_member_event.membership == Membership.JOIN:
user_left_room(self.distributor, target_user, room_id)
if prev_member_event_id:
prev_member_event = yield self.store.get_event(prev_member_event_id)
if prev_member_event.membership == Membership.JOIN:
user_left_room(self.distributor, target_user, room_id)
def _can_guest_join(self, current_state):
@defer.inlineCallbacks
def _can_guest_join(self, current_state_ids):
"""
Returns whether a guest can join a room based on its current state.
"""
guest_access = current_state.get((EventTypes.GuestAccess, ""), None)
return (
guest_access_id = current_state_ids.get((EventTypes.GuestAccess, ""), None)
if not guest_access_id:
defer.returnValue(False)
guest_access = yield self.store.get_event(guest_access_id)
defer.returnValue(
guest_access
and guest_access.content
and "guest_access" in guest_access.content
@ -683,3 +706,24 @@ class RoomMemberHandler(BaseHandler):
if membership:
yield self.store.forget(user_id, room_id)
@defer.inlineCallbacks
def _is_host_in_room(self, current_state_ids):
# Have we just created the room, and is this about to be the very
# first member event?
create_event_id = current_state_ids.get(("m.room.create", ""))
if len(current_state_ids) == 1 and create_event_id:
defer.returnValue(self.hs.is_mine_id(create_event_id))
for (etype, state_key), event_id in current_state_ids.items():
if etype != EventTypes.Member or not self.hs.is_mine_id(state_key):
continue
event = yield self.store.get_event(event_id, allow_none=True)
if not event:
continue
if event.membership == Membership.JOIN:
defer.returnValue(True)
defer.returnValue(False)

4
synapse/push/action_generator.py
View File

@ -40,12 +40,12 @@ class ActionGenerator:
def handle_push_actions_for_event(self, event, context):
with Measure(self.clock, "evaluator_for_event"):
bulk_evaluator = yield evaluator_for_event(
event, self.hs, self.store, context.state_group, context.current_state
event, self.hs, self.store, context
)
with Measure(self.clock, "action_for_event_by_user"):
actions_by_user = yield bulk_evaluator.action_for_event_by_user(
event, context.current_state
event, context
)
context.push_actions = [

32
synapse/push/bulk_push_rule_evaluator.py
View File

@ -19,8 +19,8 @@ from twisted.internet import defer
from .push_rule_evaluator import PushRuleEvaluatorForEvent
from synapse.api.constants import EventTypes, Membership
from synapse.visibility import filter_events_for_clients
from synapse.api.constants import EventTypes
from synapse.visibility import filter_events_for_clients_context
logger = logging.getLogger(__name__)
@ -36,9 +36,9 @@ def _get_rules(room_id, user_ids, store):
@defer.inlineCallbacks
def evaluator_for_event(event, hs, store, state_group, current_state):
def evaluator_for_event(event, hs, store, context):
rules_by_user = yield store.bulk_get_push_rules_for_room(
event.room_id, state_group, current_state
event.room_id, context
)
# if this event is an invite event, we may need to run rules for the user
@ -72,7 +72,7 @@ class BulkPushRuleEvaluator:
self.store = store
@defer.inlineCallbacks
def action_for_event_by_user(self, event, current_state):
def action_for_event_by_user(self, event, context):
actions_by_user = {}
# None of these users can be peeking since this list of users comes
@ -82,27 +82,25 @@ class BulkPushRuleEvaluator:
(u, False) for u in self.rules_by_user.keys()
]
filtered_by_user = yield filter_events_for_clients(
self.store, user_tuples, [event], {event.event_id: current_state}
filtered_by_user = yield filter_events_for_clients_context(
self.store, user_tuples, [event], {event.event_id: context}
)
room_members = set(
e.state_key for e in current_state.values()
if e.type == EventTypes.Member and e.membership == Membership.JOIN
room_members = yield self.store.get_joined_users_from_context(
event.room_id, context,
)
evaluator = PushRuleEvaluatorForEvent(event, len(room_members))
condition_cache = {}
display_names = {}
for ev in current_state.values():
nm = ev.content.get("displayname", None)
if nm and ev.type == EventTypes.Member:
display_names[ev.state_key] = nm
for uid, rules in self.rules_by_user.items():
display_name = display_names.get(uid, None)
display_name = None
member_ev_id = context.current_state_ids.get((EventTypes.Member, uid))
if member_ev_id:
member_ev = yield self.store.get_event(member_ev_id, allow_none=True)
if member_ev:
display_name = member_ev.content.get("displayname", None)
filtered = filtered_by_user[uid]
if len(filtered) == 0:

48
synapse/state.py
View File

@ -106,6 +106,20 @@ class StateHandler(object):
defer.returnValue(state)
@defer.inlineCallbacks
def get_current_state_ids(self, room_id, event_type=None, state_key="",
latest_event_ids=None):
if not latest_event_ids:
latest_event_ids = yield self.store.get_latest_event_ids_in_room(room_id)
_, state = yield self.resolve_state_groups(room_id, latest_event_ids)
if event_type:
defer.returnValue(state.get((event_type, state_key)))
return
defer.returnValue(state)
@defer.inlineCallbacks
def compute_event_context(self, event, old_state=None):
""" Fills out the context with the `current state` of the graph. The
@ -127,27 +141,27 @@ class StateHandler(object):
# state. Certainly store.get_current_state won't return any, and
# persisting the event won't store the state group.
if old_state:
context.current_state = {
(s.type, s.state_key): s for s in old_state
context.current_state_ids = {
(s.type, s.state_key): s.event_id for s in old_state
}
else:
context.current_state = {}
context.current_state_ids = {}
context.prev_state_events = []
context.state_group = None
defer.returnValue(context)
if old_state:
context.current_state = {
(s.type, s.state_key): s for s in old_state
context.current_state_ids = {
(s.type, s.state_key): s.event_id for s in old_state
}
context.state_group = None
if event.is_state():
key = (event.type, event.state_key)
if key in context.current_state:
replaces = context.current_state[key]
if replaces.event_id != event.event_id: # Paranoia check
event.unsigned["replaces_state"] = replaces.event_id
if key in context.current_state_ids:
replaces = context.current_state_ids[key]
if replaces != event.event_id: # Paranoia check
event.unsigned["replaces_state"] = replaces
context.prev_state_events = []
defer.returnValue(context)
@ -165,22 +179,14 @@ class StateHandler(object):
group, curr_state = ret
state_map = yield self.store.get_events(
curr_state.values(),
get_prev_content=False
)
curr_state = {
key: state_map[e_id] for key, e_id in curr_state.items() if e_id in state_map
}
context.current_state = curr_state
context.current_state_ids = curr_state
context.state_group = group if not event.is_state() else None
if event.is_state():
key = (event.type, event.state_key)
if key in context.current_state:
replaces = context.current_state[key]
event.unsigned["replaces_state"] = replaces.event_id
if key in context.current_state_ids:
replaces = context.current_state_ids[key]
event.unsigned["replaces_state"] = replaces
context.prev_state_events = []
defer.returnValue(context)

21
synapse/storage/push_rule.py
View File

@ -124,7 +124,8 @@ class PushRuleStore(SQLBaseStore):
defer.returnValue(results)
def bulk_get_push_rules_for_room(self, room_id, state_group, current_state):
def bulk_get_push_rules_for_room(self, room_id, context):
state_group = context.state_group
if not state_group:
# If state_group is None it means it has yet to be assigned a
# state group, i.e. we need to make sure that calls with a state_group
@ -132,10 +133,12 @@ class PushRuleStore(SQLBaseStore):
# To do this we set the state_group to a new object as object() != object()
state_group = object()
return self._bulk_get_push_rules_for_room(room_id, state_group, current_state)
return self._bulk_get_push_rules_for_room(
room_id, state_group, context.current_state_ids
)
@cachedInlineCallbacks(num_args=2, cache_context=True)
def _bulk_get_push_rules_for_room(self, room_id, state_group, current_state,
def _bulk_get_push_rules_for_room(self, room_id, state_group, current_state_ids,
cache_context):
# We don't use `state_group`, its there so that we can cache based
# on it. However, its important that its never None, since two current_state's
@ -147,10 +150,16 @@ class PushRuleStore(SQLBaseStore):
# their unread countss are correct in the event stream, but to avoid
# generating them for bot / AS users etc, we only do so for people who've
# sent a read receipt into the room.
local_user_member_ids = [
e_id for (etype, state_key), e_id in current_state_ids.iteritems()
if etype == EventTypes.Member and self.hs.is_mine_id(state_key)
]
local_member_events = yield self._get_events(local_user_member_ids)
local_users_in_room = set(
e.state_key for e in current_state.values()
if e.type == EventTypes.Member and e.membership == Membership.JOIN
and self.hs.is_mine_id(e.state_key)
member_event.state_key for member_event in local_member_events
if member_event.membership == Membership.JOIN
)
# users in the room who have pushers need to get push rules run because

45
synapse/storage/roommember.py
View File

@ -20,7 +20,7 @@ from collections import namedtuple
from ._base import SQLBaseStore
from synapse.util.caches.descriptors import cached, cachedInlineCallbacks
from synapse.api.constants import Membership
from synapse.api.constants import Membership, EventTypes
from synapse.types import get_domain_from_id
import logging
@ -325,7 +325,8 @@ class RoomMemberStore(SQLBaseStore):
@cachedInlineCallbacks(num_args=3)
def was_forgotten_at(self, user_id, room_id, event_id):
"""Returns whether user_id has elected to discard history for room_id at event_id.
"""Returns whether user_id has elected to discard history for room_id at
event_id.
event_id must be a membership event."""
def f(txn):
@ -358,3 +359,43 @@ class RoomMemberStore(SQLBaseStore):
},
desc="who_forgot"
)
def get_joined_users_from_context(self, room_id, context):
state_group = context.state_group
if not state_group:
# If state_group is None it means it has yet to be assigned a
# state group, i.e. we need to make sure that calls with a state_group
# of None don't hit previous cached calls with a None state_group.
# To do this we set the state_group to a new object as object() != object()
state_group = object()
return self._get_joined_users_from_context(
room_id, state_group, context.current_state_ids
)
@cachedInlineCallbacks(num_args=2, cache_context=True)
def _get_joined_users_from_context(self, room_id, state_group, current_state_ids,
cache_context):
# We don't use `state_group`, its there so that we can cache based
# on it. However, its important that its never None, since two current_state's
# with a state_group of None are likely to be different.
# See bulk_get_push_rules_for_room for how we work around this.
assert state_group is not None
member_event_ids = [
e_id
for key, e_id in current_state_ids.iteritems()
if key[0] == EventTypes.Member
]
rows = yield self._simple_select_many_batch(
table="room_memberships",
column="event_id",
iterable=member_event_ids,
retcols=['user_id'],
keyvalues={
"membership": Membership.JOIN,
}
)
defer.returnValue(set(row["user_id"] for row in rows))

16
synapse/storage/state.py
View File

@ -89,17 +89,17 @@ class StateStore(SQLBaseStore):
if event.internal_metadata.is_outlier():
continue
if context.current_state is None:
if context.current_state_ids is None:
continue
if context.state_group is not None:
state_groups[event.event_id] = context.state_group
continue
state_events = dict(context.current_state)
state_event_ids = dict(context.current_state_ids)
if event.is_state():
state_events[(event.type, event.state_key)] = event
state_event_ids[(event.type, event.state_key)] = event.event_id
state_group = context.new_state_group_id
@ -119,12 +119,12 @@ class StateStore(SQLBaseStore):
values=[
{
"state_group": state_group,
"room_id": state.room_id,
"type": state.type,
"state_key": state.state_key,
"event_id": state.event_id,
"room_id": event.room_id,
"type": key[0],
"state_key": key[1],
"event_id": state_id,
}
for state in state_events.values()
for key, state_id in state_event_ids.items()
],
)
state_groups[event.event_id] = state_group

19
synapse/visibility.py
View File

@ -180,6 +180,25 @@ def filter_events_for_clients(store, user_tuples, events, event_id_to_state):
})
@defer.inlineCallbacks
def filter_events_for_clients_context(store, user_tuples, events, event_id_to_context):
user_ids = set(u[0] for u in user_tuples)
event_id_to_state = {}
for event_id, context in event_id_to_context.items():
state = yield store.get_events([
e_id
for key, e_id in context.current_state_ids.iteritems()
if key == (EventTypes.RoomHistoryVisibility, "")
or (key[0] == EventTypes.Member and key[1] in user_ids)
])
event_id_to_state[event_id] = state
res = yield filter_events_for_clients(
store, user_tuples, events, event_id_to_state
)
defer.returnValue(res)
@defer.inlineCallbacks
def filter_events_for_client(store, user_id, events, is_peeking=False):
"""

9
tests/replication/slave/storage/test_events.py
View File

@ -305,7 +305,14 @@ class SlavedEventStoreTestCase(BaseSlavedStoreTestCase):
self.event_id += 1
context = EventContext(current_state=state)
if state is not None:
state_ids = {
key: e.event_id for key, e in state.items()
}
else:
state_ids = None
context = EventContext(current_state_ids=state_ids)
context.push_actions = push_actions
ordering = None

73
tests/test_state.py
View File

@ -69,7 +69,7 @@ class StateGroupStore(object):
self._next_group = 1
def get_state_groups(self, room_id, event_ids):
def get_state_groups_ids(self, room_id, event_ids):
groups = {}
for event_id in event_ids:
group = self._event_to_state_group.get(event_id)
@ -79,20 +79,20 @@ class StateGroupStore(object):
return defer.succeed(groups)
def store_state_groups(self, event, context):
if context.current_state is None:
if context.current_state_ids is None:
return
state_events = context.current_state
state_events = dict(context.current_state_ids)
if event.is_state():
state_events[(event.type, event.state_key)] = event
state_events[(event.type, event.state_key)] = event.event_id
state_group = context.state_group
if not state_group:
state_group = self._next_group
self._next_group += 1
self._group_to_state[state_group] = state_events.values()
self._group_to_state[state_group] = state_events
self._event_to_state_group[event.event_id] = state_group
@ -136,7 +136,7 @@ class StateTestCase(unittest.TestCase):
def setUp(self):
self.store = Mock(
spec_set=[
"get_state_groups",
"get_state_groups_ids",
"add_event_hashes",
]
)
@ -187,7 +187,7 @@ class StateTestCase(unittest.TestCase):
)
store = StateGroupStore()
self.store.get_state_groups.side_effect = store.get_state_groups
self.store.get_state_groups_ids.side_effect = store.get_state_groups_ids
context_store = {}
@ -196,7 +196,7 @@ class StateTestCase(unittest.TestCase):
store.store_state_groups(event, context)
context_store[event.event_id] = context
self.assertEqual(2, len(context_store["D"].current_state))
self.assertEqual(2, len(context_store["D"].current_state_ids))
@defer.inlineCallbacks
def test_branch_basic_conflict(self):
@ -239,7 +239,7 @@ class StateTestCase(unittest.TestCase):
)
store = StateGroupStore()
self.store.get_state_groups.side_effect = store.get_state_groups
self.store.get_state_groups_ids.side_effect = store.get_state_groups_ids
context_store = {}
@ -303,7 +303,7 @@ class StateTestCase(unittest.TestCase):
)
store = StateGroupStore()
self.store.get_state_groups.side_effect = store.get_state_groups
self.store.get_state_groups_ids.side_effect = store.get_state_groups_ids
context_store = {}
@ -384,7 +384,7 @@ class StateTestCase(unittest.TestCase):
graph = Graph(nodes, edges)
store = StateGroupStore()
self.store.get_state_groups.side_effect = store.get_state_groups
self.store.get_state_groups_ids.side_effect = store.get_state_groups_ids
context_store = {}
@ -424,13 +424,8 @@ class StateTestCase(unittest.TestCase):
event, old_state=old_state
)
for k, v in context.current_state.items():
type, state_key = k
self.assertEqual(type, v.type)
self.assertEqual(state_key, v.state_key)
self.assertEqual(
set(old_state), set(context.current_state.values())
set(e.event_id for e in old_state), set(context.current_state_ids.values())
)
self.assertIsNone(context.state_group)
@ -449,14 +444,8 @@ class StateTestCase(unittest.TestCase):
event, old_state=old_state
)
for k, v in context.current_state.items():
type, state_key = k
self.assertEqual(type, v.type)
self.assertEqual(state_key, v.state_key)
self.assertEqual(
set(old_state),
set(context.current_state.values())
set(e.event_id for e in old_state), set(context.current_state_ids.values())
)
self.assertIsNone(context.state_group)
@ -473,20 +462,15 @@ class StateTestCase(unittest.TestCase):
group_name = "group_name_1"
self.store.get_state_groups.return_value = {
group_name: old_state,
self.store.get_state_groups_ids.return_value = {
group_name: {(e.type, e.state_key): e.event_id for e in old_state},
}
context = yield self.state.compute_event_context(event)
for k, v in context.current_state.items():
type, state_key = k
self.assertEqual(type, v.type)
self.assertEqual(state_key, v.state_key)
self.assertEqual(
set([e.event_id for e in old_state]),
set([e.event_id for e in context.current_state.values()])
set(context.current_state_ids.values())
)
self.assertEqual(group_name, context.state_group)
@ -503,20 +487,15 @@ class StateTestCase(unittest.TestCase):
group_name = "group_name_1"
self.store.get_state_groups.return_value = {
group_name: old_state,
self.store.get_state_groups_ids.return_value = {
group_name: {(e.type, e.state_key): e.event_id for e in old_state},
}
context = yield self.state.compute_event_context(event)
for k, v in context.current_state.items():
type, state_key = k
self.assertEqual(type, v.type)
self.assertEqual(state_key, v.state_key)
self.assertEqual(
set([e.event_id for e in old_state]),
set([e.event_id for e in context.current_state.values()])
set(context.current_state_ids.values())
)
self.assertIsNone(context.state_group)
@ -545,7 +524,7 @@ class StateTestCase(unittest.TestCase):
context = yield self._get_context(event, old_state_1, old_state_2)
self.assertEqual(len(context.current_state), 6)
self.assertEqual(len(context.current_state_ids), 6)
self.assertIsNone(context.state_group)
@ -573,7 +552,7 @@ class StateTestCase(unittest.TestCase):
context = yield self._get_context(event, old_state_1, old_state_2)
self.assertEqual(len(context.current_state), 6)
self.assertEqual(len(context.current_state_ids), 6)
self.assertIsNone(context.state_group)
@ -608,7 +587,7 @@ class StateTestCase(unittest.TestCase):
context = yield self._get_context(event, old_state_1, old_state_2)
self.assertEqual(old_state_2[2], context.current_state[("test1", "1")])
self.assertEqual(old_state_2[2].event.id, context.current_state_ids[("test1", "1")])
# Reverse the depth to make sure we are actually using the depths
# during state resolution.
@ -627,15 +606,15 @@ class StateTestCase(unittest.TestCase):
context = yield self._get_context(event, old_state_1, old_state_2)
self.assertEqual(old_state_1[2], context.current_state[("test1", "1")])
self.assertEqual(old_state_1[2].event_id, context.current_state_ids[("test1", "1")])
def _get_context(self, event, old_state_1, old_state_2):
group_name_1 = "group_name_1"
group_name_2 = "group_name_2"
self.store.get_state_groups.return_value = {
group_name_1: old_state_1,
group_name_2: old_state_2,
self.store.get_state_groups_ids.return_value = {
group_name_1: {(e.type, e.state_key): e.event_id for e in old_state_1},
group_name_2: {(e.type, e.state_key): e.event_id for e in old_state_2},
}
return self.state.compute_event_context(event)