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Remove code that's now been obsoleted or moved elsewhere

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pull/4/merge
David Baker 9 years ago
parent 92e3071623
commit d549fdfa22
3 changed files with 9 additions and 454 deletions
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  1. 327
      synapse/push/__init__.py
  2. 2
      synapse/push/httppusher.py
  3. 134
      synapse/push/push_rule_evaluator.py

327
synapse/push/__init__.py
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@ -13,333 +13,6 @@
# See the License for the specific language governing permissions and
# limitations under the License.
from twisted.internet import defer
from synapse.streams.config import PaginationConfig
from synapse.types import StreamToken
from synapse.util.logcontext import LoggingContext
from synapse.util.metrics import Measure
import synapse.util.async
from .push_rule_evaluator import evaluator_for_user_id
import logging
import random
logger = logging.getLogger(__name__)
_NEXT_ID = 1
def _get_next_id():
global _NEXT_ID
_id = _NEXT_ID
_NEXT_ID += 1
return _id
# Pushers could now be moved to pull out of the event_push_actions table instead
# of listening on the event stream: this would avoid them having to run the
# rules again.
class Pusher(object):
INITIAL_BACKOFF = 1000
MAX_BACKOFF = 60 * 60 * 1000
GIVE_UP_AFTER = 24 * 60 * 60 * 1000
def __init__(self, _hs, user_id, app_id,
app_display_name, device_display_name, pushkey, pushkey_ts,
data, last_token, last_success, failing_since):
self.hs = _hs
self.evStreamHandler = self.hs.get_handlers().event_stream_handler
self.store = self.hs.get_datastore()
self.clock = self.hs.get_clock()
self.user_id = user_id
self.app_id = app_id
self.app_display_name = app_display_name
self.device_display_name = device_display_name
self.pushkey = pushkey
self.pushkey_ts = pushkey_ts
self.data = data
self.last_token = last_token
self.last_success = last_success # not actually used
self.backoff_delay = Pusher.INITIAL_BACKOFF
self.failing_since = failing_since
self.alive = True
self.badge = None
self.name = "Pusher-%d" % (_get_next_id(),)
# The last value of last_active_time that we saw
self.last_last_active_time = 0
self.has_unread = True
@defer.inlineCallbacks
def get_context_for_event(self, ev):
name_aliases = yield self.store.get_room_name_and_aliases(
ev['room_id']
)
ctx = {'aliases': name_aliases[1]}
if name_aliases[0] is not None:
ctx['name'] = name_aliases[0]
their_member_events_for_room = yield self.store.get_current_state(
room_id=ev['room_id'],
event_type='m.room.member',
state_key=ev['user_id']
)
for mev in their_member_events_for_room:
if mev.content['membership'] == 'join' and 'displayname' in mev.content:
dn = mev.content['displayname']
if dn is not None:
ctx['sender_display_name'] = dn
defer.returnValue(ctx)
@defer.inlineCallbacks
def start(self):
with LoggingContext(self.name):
if not self.last_token:
# First-time setup: get a token to start from (we can't
# just start from no token, ie. 'now'
# because we need the result to be reproduceable in case
# we fail to dispatch the push)
config = PaginationConfig(from_token=None, limit='1')
chunk = yield self.evStreamHandler.get_stream(
self.user_id, config, timeout=0, affect_presence=False
)
self.last_token = chunk['end']
yield self.store.update_pusher_last_token(
self.app_id, self.pushkey, self.user_id, self.last_token
)
logger.info("New pusher %s for user %s starting from token %s",
self.pushkey, self.user_id, self.last_token)
else:
logger.info(
"Old pusher %s for user %s starting",
self.pushkey, self.user_id,
)
wait = 0
while self.alive:
try:
if wait > 0:
yield synapse.util.async.sleep(wait)
with Measure(self.clock, "push"):
yield self.get_and_dispatch()
wait = 0
except:
if wait == 0:
wait = 1
else:
wait = min(wait * 2, 1800)
logger.exception(
"Exception in pusher loop for pushkey %s. Pausing for %ds",
self.pushkey, wait
)
@defer.inlineCallbacks
def get_and_dispatch(self):
from_tok = StreamToken.from_string(self.last_token)
config = PaginationConfig(from_token=from_tok, limit='1')
timeout = (300 + random.randint(-60, 60)) * 1000
chunk = yield self.evStreamHandler.get_stream(
self.user_id, config, timeout=timeout, affect_presence=False,
only_keys=("room", "receipt",),
)
# limiting to 1 may get 1 event plus 1 presence event, so
# pick out the actual event
single_event = None
read_receipt = None
for c in chunk['chunk']:
if 'event_id' in c: # Hmmm...
single_event = c
elif c['type'] == 'm.receipt':
read_receipt = c
have_updated_badge = False
if read_receipt:
for receipt_part in read_receipt['content'].values():
if 'm.read' in receipt_part:
if self.user_id in receipt_part['m.read'].keys():
have_updated_badge = True
if not single_event:
if have_updated_badge:
yield self.update_badge()
self.last_token = chunk['end']
yield self.store.update_pusher_last_token(
self.app_id,
self.pushkey,
self.user_id,
self.last_token
)
return
if not self.alive:
return
processed = False
rule_evaluator = yield \
evaluator_for_user_id(
self.user_id, single_event['room_id'], self.store
)
actions = yield rule_evaluator.actions_for_event(single_event)
tweaks = rule_evaluator.tweaks_for_actions(actions)
if 'notify' in actions:
self.badge = yield self._get_badge_count()
rejected = yield self.dispatch_push(single_event, tweaks, self.badge)
self.has_unread = True
if isinstance(rejected, list) or isinstance(rejected, tuple):
processed = True
for pk in rejected:
if pk != self.pushkey:
# for sanity, we only remove the pushkey if it
# was the one we actually sent...
logger.warn(
("Ignoring rejected pushkey %s because we"
" didn't send it"), pk
)
else:
logger.info(
"Pushkey %s was rejected: removing",
pk
)
yield self.hs.get_pusherpool().remove_pusher(
self.app_id, pk, self.user_id
)
else:
if have_updated_badge:
yield self.update_badge()
processed = True
if not self.alive:
return
if processed:
self.backoff_delay = Pusher.INITIAL_BACKOFF
self.last_token = chunk['end']
yield self.store.update_pusher_last_token_and_success(
self.app_id,
self.pushkey,
self.user_id,
self.last_token,
self.clock.time_msec()
)
if self.failing_since:
self.failing_since = None
yield self.store.update_pusher_failing_since(
self.app_id,
self.pushkey,
self.user_id,
self.failing_since)
else:
if not self.failing_since:
self.failing_since = self.clock.time_msec()
yield self.store.update_pusher_failing_since(
self.app_id,
self.pushkey,
self.user_id,
self.failing_since
)
if (self.failing_since and
self.failing_since <
self.clock.time_msec() - Pusher.GIVE_UP_AFTER):
# we really only give up so that if the URL gets
# fixed, we don't suddenly deliver a load
# of old notifications.
logger.warn("Giving up on a notification to user %s, "
"pushkey %s",
self.user_id, self.pushkey)
self.backoff_delay = Pusher.INITIAL_BACKOFF
self.last_token = chunk['end']
yield self.store.update_pusher_last_token(
self.app_id,
self.pushkey,
self.user_id,
self.last_token
)
self.failing_since = None
yield self.store.update_pusher_failing_since(
self.app_id,
self.pushkey,
self.user_id,
self.failing_since
)
else:
logger.warn("Failed to dispatch push for user %s "
"(failing for %dms)."
"Trying again in %dms",
self.user_id,
self.clock.time_msec() - self.failing_since,
self.backoff_delay)
yield synapse.util.async.sleep(self.backoff_delay / 1000.0)
self.backoff_delay *= 2
if self.backoff_delay > Pusher.MAX_BACKOFF:
self.backoff_delay = Pusher.MAX_BACKOFF
def stop(self):
self.alive = False
def dispatch_push(self, p, tweaks, badge):
"""
Overridden by implementing classes to actually deliver the notification
Args:
p: The event to notify for as a single event from the event stream
Returns: If the notification was delivered, an array containing any
pushkeys that were rejected by the push gateway.
False if the notification could not be delivered (ie.
should be retried).
"""
pass
@defer.inlineCallbacks
def update_badge(self):
new_badge = yield self._get_badge_count()
if self.badge != new_badge:
self.badge = new_badge
yield self.send_badge(self.badge)
def send_badge(self, badge):
"""
Overridden by implementing classes to send an updated badge count
"""
pass
@defer.inlineCallbacks
def _get_badge_count(self):
invites, joins = yield defer.gatherResults([
self.store.get_invited_rooms_for_user(self.user_id),
self.store.get_rooms_for_user(self.user_id),
], consumeErrors=True)
my_receipts_by_room = yield self.store.get_receipts_for_user(
self.user_id,
"m.read",
)
badge = len(invites)
for r in joins:
if r.room_id in my_receipts_by_room:
last_unread_event_id = my_receipts_by_room[r.room_id]
notifs = yield (
self.store.get_unread_event_push_actions_by_room_for_user(
r.room_id, self.user_id, last_unread_event_id
)
)
badge += notifs["notify_count"]
defer.returnValue(badge)
class PusherConfigException(Exception):
def __init__(self, msg):

2
synapse/push/httppusher.py
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@ -168,7 +168,7 @@ class HttpPusher(object):
if 'notify' not in push_action['actions']:
defer.returnValue(True)
tweaks = push_rule_evaluator.PushRuleEvaluator.tweaks_for_actions(push_action['actions'])
tweaks = push_rule_evaluator.tweaks_for_actions(push_action['actions'])
badge = yield push_tools.get_badge_count(self.hs, self.user_id)
event = yield self.store.get_event(push_action['event_id'], allow_none=True)

134
synapse/push/push_rule_evaluator.py
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@ -13,12 +13,7 @@
# See the License for the specific language governing permissions and
# limitations under the License.
from twisted.internet import defer
from .baserules import list_with_base_rules
import logging
import simplejson as json
import re
from synapse.types import UserID
@ -32,22 +27,6 @@ IS_GLOB = re.compile(r'[\?\*\[\]]')
INEQUALITY_EXPR = re.compile("^([=<>]*)([0-9]*)$")
@defer.inlineCallbacks
def evaluator_for_user_id(user_id, room_id, store):
rawrules = yield store.get_push_rules_for_user(user_id)
enabled_map = yield store.get_push_rules_enabled_for_user(user_id)
our_member_event = yield store.get_current_state(
room_id=room_id,
event_type='m.room.member',
state_key=user_id,
)
defer.returnValue(PushRuleEvaluator(
user_id, rawrules, enabled_map,
room_id, our_member_event, store
))
def _room_member_count(ev, condition, room_member_count):
if 'is' not in condition:
return False
@ -74,111 +53,14 @@ def _room_member_count(ev, condition, room_member_count):
return False
class PushRuleEvaluator:
DEFAULT_ACTIONS = []
def __init__(self, user_id, raw_rules, enabled_map, room_id,
our_member_event, store):
self.user_id = user_id
self.room_id = room_id
self.our_member_event = our_member_event
self.store = store
rules = []
for raw_rule in raw_rules:
rule = dict(raw_rule)
rule['conditions'] = json.loads(raw_rule['conditions'])
rule['actions'] = json.loads(raw_rule['actions'])
rules.append(rule)
self.rules = list_with_base_rules(rules)
self.enabled_map = enabled_map
@staticmethod
def tweaks_for_actions(actions):
tweaks = {}
for a in actions:
if not isinstance(a, dict):
continue
if 'set_tweak' in a and 'value' in a:
tweaks[a['set_tweak']] = a['value']
return tweaks
@defer.inlineCallbacks
def actions_for_event(self, ev):
"""
This should take into account notification settings that the user
has configured both globally and per-room when we have the ability
to do such things.
"""
if ev['user_id'] == self.user_id:
# let's assume you probably know about messages you sent yourself
defer.returnValue([])
room_id = ev['room_id']
# get *our* member event for display name matching
my_display_name = None
if self.our_member_event:
my_display_name = self.our_member_event[0].content.get("displayname")
room_members = yield self.store.get_users_in_room(room_id)
room_member_count = len(room_members)
evaluator = PushRuleEvaluatorForEvent(ev, room_member_count)
for r in self.rules:
enabled = self.enabled_map.get(r['rule_id'], None)
if enabled is not None and not enabled:
continue
elif enabled is None and not r.get("enabled", True):
# if no override, check enabled on the rule itself
# (may have come from a base rule)
continue
conditions = r['conditions']
actions = r['actions']
# ignore rules with no actions (we have an explict 'dont_notify')
if len(actions) == 0:
logger.warn(
"Ignoring rule id %s with no actions for user %s",
r['rule_id'], self.user_id
)
continue
matches = True
for c in conditions:
matches = evaluator.matches(
c, self.user_id, my_display_name
)
if not matches:
break
logger.debug(
"Rule %s %s",
r['rule_id'], "matches" if matches else "doesn't match"
)
if matches:
logger.debug(
"%s matches for user %s, event %s",
r['rule_id'], self.user_id, ev['event_id']
)
# filter out dont_notify as we treat an empty actions list
# as dont_notify, and this doesn't take up a row in our database
actions = [x for x in actions if x != 'dont_notify']
defer.returnValue(actions)
logger.debug(
"No rules match for user %s, event %s",
self.user_id, ev['event_id']
)
defer.returnValue(PushRuleEvaluator.DEFAULT_ACTIONS)
def tweaks_for_actions(actions):
tweaks = {}
for a in actions:
if not isinstance(a, dict):
continue
if 'set_tweak' in a and 'value' in a:
tweaks[a['set_tweak']] = a['value']
return tweaks
class PushRuleEvaluatorForEvent(object):

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