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Merge branch 'develop' of github.com:matrix-org/synapse into neilj/server_notices_on_blocking

This commit is contained in:
Neil Johnson 2018-08-16 11:37:17 +01:00
parent df1e4f259f 3f543dc021
commit 25d2b5d55f
7 changed files with 169 additions and 28 deletions
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10
CONTRIBUTING.rst
View File

@ -56,17 +56,17 @@ entry. These are managed by Towncrier
(https://github.com/hawkowl/towncrier).
To create a changelog entry, make a new file in the ``changelog.d``
file named in the format of ``issuenumberOrPR.type``. The type can be
file named in the format of ``PRnumber.type``. The type can be
one of ``feature``, ``bugfix``, ``removal`` (also used for
deprecations), or ``misc`` (for internal-only changes). The content of
the file is your changelog entry, which can contain RestructuredText
formatting. A note of contributors is welcomed in changelogs for
non-misc changes (the content of misc changes is not displayed).
For example, a fix for a bug reported in #1234 would have its
changelog entry in ``changelog.d/1234.bugfix``, and contain content
like "The security levels of Florbs are now validated when
recieved over federation. Contributed by Jane Matrix".
For example, a fix in PR #1234 would have its changelog entry in
``changelog.d/1234.bugfix``, and contain content like "The security levels of
Florbs are now validated when recieved over federation. Contributed by Jane
Matrix".
Attribution
~~~~~~~~~~~

1
changelog.d/3574.feature Normal file
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@ -0,0 +1 @@
implement `summary` block in /sync response as per MSC688

159
synapse/handlers/sync.py
View File

@ -75,6 +75,7 @@ class JoinedSyncResult(collections.namedtuple("JoinedSyncResult", [
"ephemeral",
"account_data",
"unread_notifications",
"summary",
])):
__slots__ = []
@ -503,10 +504,142 @@ class SyncHandler(object):
state = {}
defer.returnValue(state)
@defer.inlineCallbacks
def compute_summary(self, room_id, sync_config, batch, state, now_token):
""" Works out a room summary block for this room, summarising the number
of joined members in the room, and providing the 'hero' members if the
room has no name so clients can consistently name rooms. Also adds
state events to 'state' if needed to describe the heroes.
Args:
room_id(str):
sync_config(synapse.handlers.sync.SyncConfig):
batch(synapse.handlers.sync.TimelineBatch): The timeline batch for
the room that will be sent to the user.
state(dict): dict of (type, state_key) -> Event as returned by
compute_state_delta
now_token(str): Token of the end of the current batch.
Returns:
A deferred dict describing the room summary
"""
# FIXME: this promulgates https://github.com/matrix-org/synapse/issues/3305
last_events, _ = yield self.store.get_recent_event_ids_for_room(
room_id, end_token=now_token.room_key, limit=1,
)
if not last_events:
defer.returnValue(None)
return
last_event = last_events[-1]
state_ids = yield self.store.get_state_ids_for_event(
last_event.event_id, [
(EventTypes.Member, None),
(EventTypes.Name, ''),
(EventTypes.CanonicalAlias, ''),
]
)
member_ids = {
state_key: event_id
for (t, state_key), event_id in state_ids.iteritems()
if t == EventTypes.Member
}
name_id = state_ids.get((EventTypes.Name, ''))
canonical_alias_id = state_ids.get((EventTypes.CanonicalAlias, ''))
summary = {}
# FIXME: it feels very heavy to load up every single membership event
# just to calculate the counts.
member_events = yield self.store.get_events(member_ids.values())
joined_user_ids = []
invited_user_ids = []
for ev in member_events.values():
if ev.content.get("membership") == Membership.JOIN:
joined_user_ids.append(ev.state_key)
elif ev.content.get("membership") == Membership.INVITE:
invited_user_ids.append(ev.state_key)
# TODO: only send these when they change.
summary["m.joined_member_count"] = len(joined_user_ids)
summary["m.invited_member_count"] = len(invited_user_ids)
if name_id or canonical_alias_id:
defer.returnValue(summary)
# FIXME: order by stream ordering, not alphabetic
me = sync_config.user.to_string()
if (joined_user_ids or invited_user_ids):
summary['m.heroes'] = sorted(
[
user_id
for user_id in (joined_user_ids + invited_user_ids)
if user_id != me
]
)[0:5]
else:
summary['m.heroes'] = sorted(
[user_id for user_id in member_ids.keys() if user_id != me]
)[0:5]
if not sync_config.filter_collection.lazy_load_members():
defer.returnValue(summary)
# ensure we send membership events for heroes if needed
cache_key = (sync_config.user.to_string(), sync_config.device_id)
cache = self.get_lazy_loaded_members_cache(cache_key)
# track which members the client should already know about via LL:
# Ones which are already in state...
existing_members = set(
user_id for (typ, user_id) in state.keys()
if typ == EventTypes.Member
)
# ...or ones which are in the timeline...
for ev in batch.events:
if ev.type == EventTypes.Member:
existing_members.add(ev.state_key)
# ...and then ensure any missing ones get included in state.
missing_hero_event_ids = [
member_ids[hero_id]
for hero_id in summary['m.heroes']
if (
cache.get(hero_id) != member_ids[hero_id] and
hero_id not in existing_members
)
]
missing_hero_state = yield self.store.get_events(missing_hero_event_ids)
missing_hero_state = missing_hero_state.values()
for s in missing_hero_state:
cache.set(s.state_key, s.event_id)
state[(EventTypes.Member, s.state_key)] = s
defer.returnValue(summary)
def get_lazy_loaded_members_cache(self, cache_key):
cache = self.lazy_loaded_members_cache.get(cache_key)
if cache is None:
logger.debug("creating LruCache for %r", cache_key)
cache = LruCache(LAZY_LOADED_MEMBERS_CACHE_MAX_SIZE)
self.lazy_loaded_members_cache[cache_key] = cache
else:
logger.debug("found LruCache for %r", cache_key)
return cache
@defer.inlineCallbacks
def compute_state_delta(self, room_id, batch, sync_config, since_token, now_token,
full_state):
""" Works out the differnce in state between the start of the timeline
""" Works out the difference in state between the start of the timeline
and the previous sync.
Args:
@ -520,7 +653,7 @@ class SyncHandler(object):
full_state(bool): Whether to force returning the full state.
Returns:
A deferred new event dictionary
A deferred dict of (type, state_key) -> Event
"""
# TODO(mjark) Check if the state events were received by the server
# after the previous sync, since we need to include those state
@ -618,13 +751,7 @@ class SyncHandler(object):
if lazy_load_members and not include_redundant_members:
cache_key = (sync_config.user.to_string(), sync_config.device_id)
cache = self.lazy_loaded_members_cache.get(cache_key)
if cache is None:
logger.debug("creating LruCache for %r", cache_key)
cache = LruCache(LAZY_LOADED_MEMBERS_CACHE_MAX_SIZE)
self.lazy_loaded_members_cache[cache_key] = cache
else:
logger.debug("found LruCache for %r", cache_key)
cache = self.get_lazy_loaded_members_cache(cache_key)
# if it's a new sync sequence, then assume the client has had
# amnesia and doesn't want any recent lazy-loaded members
@ -1425,7 +1552,6 @@ class SyncHandler(object):
if events == [] and tags is None:
return
since_token = sync_result_builder.since_token
now_token = sync_result_builder.now_token
sync_config = sync_result_builder.sync_config
@ -1468,6 +1594,18 @@ class SyncHandler(object):
full_state=full_state
)
summary = {}
if (
sync_config.filter_collection.lazy_load_members() and
(
any(ev.type == EventTypes.Member for ev in batch.events) or
since_token is None
)
):
summary = yield self.compute_summary(
room_id, sync_config, batch, state, now_token
)
if room_builder.rtype == "joined":
unread_notifications = {}
room_sync = JoinedSyncResult(
@ -1477,6 +1615,7 @@ class SyncHandler(object):
ephemeral=ephemeral,
account_data=account_data_events,
unread_notifications=unread_notifications,
summary=summary,
)
if room_sync or always_include:

1
synapse/rest/client/v2_alpha/sync.py
View File

@ -370,6 +370,7 @@ class SyncRestServlet(RestServlet):
ephemeral_events = room.ephemeral
result["ephemeral"] = {"events": ephemeral_events}
result["unread_notifications"] = room.unread_notifications
result["summary"] = room.summary
return result

7
synapse/storage/_base.py
View File

@ -1150,17 +1150,16 @@ class SQLBaseStore(object):
defer.returnValue(retval)
def get_user_count_txn(self, txn):
"""Get a total number of registerd users in the users list.
"""Get a total number of registered users in the users list.
Args:
txn : Transaction object
Returns:
defer.Deferred: resolves to int
int : number of users
"""
sql_count = "SELECT COUNT(*) FROM users WHERE is_guest = 0;"
txn.execute(sql_count)
count = txn.fetchone()[0]
defer.returnValue(count)
return txn.fetchone()[0]
def _simple_search_list(self, table, term, col, retcols,
desc="_simple_search_list"):

5
synapse/storage/state.py
View File

@ -480,7 +480,8 @@ class StateGroupWorkerStore(EventsWorkerStore, SQLBaseStore):
@defer.inlineCallbacks
def get_state_ids_for_events(self, event_ids, types=None, filtered_types=None):
"""
Get the state dicts corresponding to a list of events
Get the state dicts corresponding to a list of events, containing the event_ids
of the state events (as opposed to the events themselves)
Args:
event_ids(list(str)): events whose state should be returned
@ -493,7 +494,7 @@ class StateGroupWorkerStore(EventsWorkerStore, SQLBaseStore):
If None, `types` filtering is applied to all events.
Returns:
A deferred dict from event_id -> (type, state_key) -> state_event
A deferred dict from event_id -> (type, state_key) -> event_id
"""
event_to_groups = yield self._get_state_group_for_events(
event_ids,