diff --git a/synapse/config/server.py b/synapse/config/server.py
index e763e19e15..334921d421 100644
--- a/synapse/config/server.py
+++ b/synapse/config/server.py
@@ -585,6 +585,22 @@ class ServerConfig(Config):
# Monthly Active User Blocking
#
+ # Used in cases where the admin or server owner wants to limit to the
+ # number of monthly active users.
+ #
+ # 'limit_usage_by_mau' disables/enables monthly active user blocking. When
+ # anabled and a limit is reached the server returns a 'ResourceLimitError'
+ # with error type Codes.RESOURCE_LIMIT_EXCEEDED
+ #
+ # 'max_mau_value' is the hard limit of monthly active users above which
+ # the server will start blocking user actions.
+ #
+ # 'mau_trial_days' is a means to add a grace period for active users. It
+ # means that users must be active for this number of days before they
+ # can be considered active and guards against the case where lots of users
+ # sign up in a short space of time never to return after their initial
+ # session.
+ #
#limit_usage_by_mau: False
#max_mau_value: 50
#mau_trial_days: 2
diff --git a/synapse/config/tls.py b/synapse/config/tls.py
index 43712b8213..658f9dd361 100644
--- a/synapse/config/tls.py
+++ b/synapse/config/tls.py
@@ -107,7 +107,7 @@ class TlsConfig(Config):
certs = []
for ca_file in custom_ca_list:
logger.debug("Reading custom CA certificate file: %s", ca_file)
- content = self.read_file(ca_file)
+ content = self.read_file(ca_file, "federation_custom_ca_list")
# Parse the CA certificates
try:
diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py
index cf4fad7de0..ac5ca79143 100644
--- a/synapse/handlers/federation.py
+++ b/synapse/handlers/federation.py
@@ -35,6 +35,7 @@ from synapse.api.errors import (
CodeMessageException,
FederationDeniedError,
FederationError,
+ RequestSendFailed,
StoreError,
SynapseError,
)
@@ -2027,9 +2028,21 @@ class FederationHandler(BaseHandler):
"""
room_version = yield self.store.get_room_version(event.room_id)
- yield self._update_auth_events_and_context_for_auth(
- origin, event, context, auth_events
- )
+ try:
+ yield self._update_auth_events_and_context_for_auth(
+ origin, event, context, auth_events
+ )
+ except Exception:
+ # We don't really mind if the above fails, so lets not fail
+ # processing if it does. However, it really shouldn't fail so
+ # let's still log as an exception since we'll still want to fix
+ # any bugs.
+ logger.exception(
+ "Failed to double check auth events for %s with remote. "
+ "Ignoring failure and continuing processing of event.",
+ event.event_id,
+ )
+
try:
self.auth.check(room_version, event, auth_events=auth_events)
except AuthError as e:
@@ -2042,6 +2055,15 @@ class FederationHandler(BaseHandler):
):
"""Helper for do_auth. See there for docs.
+ Checks whether a given event has the expected auth events. If it
+ doesn't then we talk to the remote server to compare state to see if
+ we can come to a consensus (e.g. if one server missed some valid
+ state).
+
+ This attempts to resovle any potential divergence of state between
+ servers, but is not essential and so failures should not block further
+ processing of the event.
+
Args:
origin (str):
event (synapse.events.EventBase):
@@ -2088,9 +2110,15 @@ class FederationHandler(BaseHandler):
missing_auth,
)
try:
- remote_auth_chain = yield self.federation_client.get_event_auth(
- origin, event.room_id, event.event_id
- )
+ try:
+ remote_auth_chain = yield self.federation_client.get_event_auth(
+ origin, event.room_id, event.event_id
+ )
+ except RequestSendFailed as e:
+ # The other side isn't around or doesn't implement the
+ # endpoint, so lets just bail out.
+ logger.info("Failed to get event auth from remote: %s", e)
+ return
seen_remotes = yield self.store.have_seen_events(
[e.event_id for e in remote_auth_chain]
@@ -2236,12 +2264,18 @@ class FederationHandler(BaseHandler):
try:
# 2. Get remote difference.
- result = yield self.federation_client.query_auth(
- origin,
- event.room_id,
- event.event_id,
- local_auth_chain,
- )
+ try:
+ result = yield self.federation_client.query_auth(
+ origin,
+ event.room_id,
+ event.event_id,
+ local_auth_chain,
+ )
+ except RequestSendFailed as e:
+ # The other side isn't around or doesn't implement the
+ # endpoint, so lets just bail out.
+ logger.info("Failed to query auth from remote: %s", e)
+ return
seen_remotes = yield self.store.have_seen_events(
[e.event_id for e in result["auth_chain"]]
diff --git a/synapse/handlers/presence.py b/synapse/handlers/presence.py
index 6209858bbb..e49c8203ef 100644
--- a/synapse/handlers/presence.py
+++ b/synapse/handlers/presence.py
@@ -828,14 +828,17 @@ class PresenceHandler(object):
# joins.
continue
- event = yield self.store.get_event(event_id)
- if event.content.get("membership") != Membership.JOIN:
+ event = yield self.store.get_event(event_id, allow_none=True)
+ if not event or event.content.get("membership") != Membership.JOIN:
# We only care about joins
continue
if prev_event_id:
- prev_event = yield self.store.get_event(prev_event_id)
- if prev_event.content.get("membership") == Membership.JOIN:
+ prev_event = yield self.store.get_event(prev_event_id, allow_none=True)
+ if (
+ prev_event
+ and prev_event.content.get("membership") == Membership.JOIN
+ ):
# Ignore changes to join events.
continue
diff --git a/synapse/handlers/stats.py b/synapse/handlers/stats.py
index 0e92b405ba..7ad16c8566 100644
--- a/synapse/handlers/stats.py
+++ b/synapse/handlers/stats.py
@@ -115,6 +115,7 @@ class StatsHandler(StateDeltasHandler):
event_id = delta["event_id"]
stream_id = delta["stream_id"]
prev_event_id = delta["prev_event_id"]
+ stream_pos = delta["stream_id"]
logger.debug("Handling: %r %r, %s", typ, state_key, event_id)
@@ -136,10 +137,15 @@ class StatsHandler(StateDeltasHandler):
event_content = {}
if event_id is not None:
- event_content = (yield self.store.get_event(event_id)).content or {}
+ event = yield self.store.get_event(event_id, allow_none=True)
+ if event:
+ event_content = event.content or {}
+
+ # We use stream_pos here rather than fetch by event_id as event_id
+ # may be None
+ now = yield self.store.get_received_ts_by_stream_pos(stream_pos)
# quantise time to the nearest bucket
- now = yield self.store.get_received_ts(event_id)
now = (now // 1000 // self.stats_bucket_size) * self.stats_bucket_size
if typ == EventTypes.Member:
@@ -149,9 +155,11 @@ class StatsHandler(StateDeltasHandler):
# compare them.
prev_event_content = {}
if prev_event_id is not None:
- prev_event_content = (
- yield self.store.get_event(prev_event_id)
- ).content
+ prev_event = yield self.store.get_event(
+ prev_event_id, allow_none=True,
+ )
+ if prev_event:
+ prev_event_content = prev_event.content
membership = event_content.get("membership", Membership.LEAVE)
prev_membership = prev_event_content.get("membership", Membership.LEAVE)
diff --git a/synapse/rest/client/versions.py b/synapse/rest/client/versions.py
index 27e7cbf3cc..babbf6a23c 100644
--- a/synapse/rest/client/versions.py
+++ b/synapse/rest/client/versions.py
@@ -39,6 +39,7 @@ class VersionsRestServlet(RestServlet):
"r0.2.0",
"r0.3.0",
"r0.4.0",
+ "r0.5.0",
],
# as per MSC1497:
"unstable_features": {
diff --git a/synapse/storage/events_worker.py b/synapse/storage/events_worker.py
index 1782428048..cc7df5cf14 100644
--- a/synapse/storage/events_worker.py
+++ b/synapse/storage/events_worker.py
@@ -78,6 +78,43 @@ class EventsWorkerStore(SQLBaseStore):
desc="get_received_ts",
)
+ def get_received_ts_by_stream_pos(self, stream_ordering):
+ """Given a stream ordering get an approximate timestamp of when it
+ happened.
+
+ This is done by simply taking the received ts of the first event that
+ has a stream ordering greater than or equal to the given stream pos.
+ If none exists returns the current time, on the assumption that it must
+ have happened recently.
+
+ Args:
+ stream_ordering (int)
+
+ Returns:
+ Deferred[int]
+ """
+
+ def _get_approximate_received_ts_txn(txn):
+ sql = """
+ SELECT received_ts FROM events
+ WHERE stream_ordering >= ?
+ LIMIT 1
+ """
+
+ txn.execute(sql, (stream_ordering,))
+ row = txn.fetchone()
+ if row and row[0]:
+ ts = row[0]
+ else:
+ ts = self.clock.time_msec()
+
+ return ts
+
+ return self.runInteraction(
+ "get_approximate_received_ts",
+ _get_approximate_received_ts_txn,
+ )
+
@defer.inlineCallbacks
def get_event(
self,
|
