435 lines
16 KiB
Python
435 lines
16 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2015, 2016 OpenMarket Ltd
|
|
# Copyright 2017 New Vector Ltd
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# 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.
|
|
import logging
|
|
import urllib.parse
|
|
from typing import TYPE_CHECKING, Any, Dict, Iterable, Optional, Union
|
|
|
|
from prometheus_client import Counter
|
|
|
|
from twisted.internet.error import AlreadyCalled, AlreadyCancelled
|
|
from twisted.internet.interfaces import IDelayedCall
|
|
|
|
from synapse.api.constants import EventTypes
|
|
from synapse.events import EventBase
|
|
from synapse.logging import opentracing
|
|
from synapse.metrics.background_process_metrics import run_as_background_process
|
|
from synapse.push import Pusher, PusherConfig, PusherConfigException
|
|
|
|
from . import push_rule_evaluator, push_tools
|
|
|
|
if TYPE_CHECKING:
|
|
from synapse.app.homeserver import HomeServer
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
http_push_processed_counter = Counter(
|
|
"synapse_http_httppusher_http_pushes_processed",
|
|
"Number of push notifications successfully sent",
|
|
)
|
|
|
|
http_push_failed_counter = Counter(
|
|
"synapse_http_httppusher_http_pushes_failed",
|
|
"Number of push notifications which failed",
|
|
)
|
|
|
|
http_badges_processed_counter = Counter(
|
|
"synapse_http_httppusher_badge_updates_processed",
|
|
"Number of badge updates successfully sent",
|
|
)
|
|
|
|
http_badges_failed_counter = Counter(
|
|
"synapse_http_httppusher_badge_updates_failed",
|
|
"Number of badge updates which failed",
|
|
)
|
|
|
|
|
|
class HttpPusher(Pusher):
|
|
INITIAL_BACKOFF_SEC = 1 # in seconds because that's what Twisted takes
|
|
MAX_BACKOFF_SEC = 60 * 60
|
|
|
|
# This one's in ms because we compare it against the clock
|
|
GIVE_UP_AFTER_MS = 24 * 60 * 60 * 1000
|
|
|
|
def __init__(self, hs: "HomeServer", pusher_config: PusherConfig):
|
|
super().__init__(hs, pusher_config)
|
|
self.storage = self.hs.get_storage()
|
|
self.app_display_name = pusher_config.app_display_name
|
|
self.device_display_name = pusher_config.device_display_name
|
|
self.pushkey_ts = pusher_config.ts
|
|
self.data = pusher_config.data
|
|
self.backoff_delay = HttpPusher.INITIAL_BACKOFF_SEC
|
|
self.failing_since = pusher_config.failing_since
|
|
self.timed_call = None # type: Optional[IDelayedCall]
|
|
self._is_processing = False
|
|
self._group_unread_count_by_room = hs.config.push_group_unread_count_by_room
|
|
self._pusherpool = hs.get_pusherpool()
|
|
|
|
self.data = pusher_config.data
|
|
if self.data is None:
|
|
raise PusherConfigException("'data' key can not be null for HTTP pusher")
|
|
|
|
self.name = "%s/%s/%s" % (
|
|
pusher_config.user_name,
|
|
pusher_config.app_id,
|
|
pusher_config.pushkey,
|
|
)
|
|
|
|
# Validate that there's a URL and it is of the proper form.
|
|
if "url" not in self.data:
|
|
raise PusherConfigException("'url' required in data for HTTP pusher")
|
|
|
|
url = self.data["url"]
|
|
if not isinstance(url, str):
|
|
raise PusherConfigException("'url' must be a string")
|
|
url_parts = urllib.parse.urlparse(url)
|
|
# Note that the specification also says the scheme must be HTTPS, but
|
|
# it isn't up to the homeserver to verify that.
|
|
if url_parts.path != "/_matrix/push/v1/notify":
|
|
raise PusherConfigException(
|
|
"'url' must have a path of '/_matrix/push/v1/notify'"
|
|
)
|
|
|
|
self.url = url
|
|
self.http_client = hs.get_proxied_blacklisted_http_client()
|
|
self.data_minus_url = {}
|
|
self.data_minus_url.update(self.data)
|
|
del self.data_minus_url["url"]
|
|
|
|
def on_started(self, should_check_for_notifs: bool) -> None:
|
|
"""Called when this pusher has been started.
|
|
|
|
Args:
|
|
should_check_for_notifs: Whether we should immediately
|
|
check for push to send. Set to False only if it's known there
|
|
is nothing to send
|
|
"""
|
|
if should_check_for_notifs:
|
|
self._start_processing()
|
|
|
|
def on_new_receipts(self, min_stream_id: int, max_stream_id: int) -> None:
|
|
# Note that the min here shouldn't be relied upon to be accurate.
|
|
|
|
# We could check the receipts are actually m.read receipts here,
|
|
# but currently that's the only type of receipt anyway...
|
|
run_as_background_process("http_pusher.on_new_receipts", self._update_badge)
|
|
|
|
async def _update_badge(self) -> None:
|
|
# XXX as per https://github.com/matrix-org/matrix-doc/issues/2627, this seems
|
|
# to be largely redundant. perhaps we can remove it.
|
|
badge = await push_tools.get_badge_count(
|
|
self.hs.get_datastore(),
|
|
self.user_id,
|
|
group_by_room=self._group_unread_count_by_room,
|
|
)
|
|
await self._send_badge(badge)
|
|
|
|
def on_timer(self) -> None:
|
|
self._start_processing()
|
|
|
|
def on_stop(self) -> None:
|
|
if self.timed_call:
|
|
try:
|
|
self.timed_call.cancel()
|
|
except (AlreadyCalled, AlreadyCancelled):
|
|
pass
|
|
self.timed_call = None
|
|
|
|
def _start_processing(self) -> None:
|
|
if self._is_processing:
|
|
return
|
|
|
|
run_as_background_process("httppush.process", self._process)
|
|
|
|
async def _process(self) -> None:
|
|
# we should never get here if we are already processing
|
|
assert not self._is_processing
|
|
|
|
try:
|
|
self._is_processing = True
|
|
# if the max ordering changes while we're running _unsafe_process,
|
|
# call it again, and so on until we've caught up.
|
|
while True:
|
|
starting_max_ordering = self.max_stream_ordering
|
|
try:
|
|
await self._unsafe_process()
|
|
except Exception:
|
|
logger.exception("Exception processing notifs")
|
|
if self.max_stream_ordering == starting_max_ordering:
|
|
break
|
|
finally:
|
|
self._is_processing = False
|
|
|
|
async def _unsafe_process(self) -> None:
|
|
"""
|
|
Looks for unset notifications and dispatch them, in order
|
|
Never call this directly: use _process which will only allow this to
|
|
run once per pusher.
|
|
"""
|
|
unprocessed = (
|
|
await self.store.get_unread_push_actions_for_user_in_range_for_http(
|
|
self.user_id, self.last_stream_ordering, self.max_stream_ordering
|
|
)
|
|
)
|
|
|
|
logger.info(
|
|
"Processing %i unprocessed push actions for %s starting at "
|
|
"stream_ordering %s",
|
|
len(unprocessed),
|
|
self.name,
|
|
self.last_stream_ordering,
|
|
)
|
|
|
|
for push_action in unprocessed:
|
|
with opentracing.start_active_span(
|
|
"http-push",
|
|
tags={
|
|
"authenticated_entity": self.user_id,
|
|
"event_id": push_action["event_id"],
|
|
"app_id": self.app_id,
|
|
"app_display_name": self.app_display_name,
|
|
},
|
|
):
|
|
processed = await self._process_one(push_action)
|
|
|
|
if processed:
|
|
http_push_processed_counter.inc()
|
|
self.backoff_delay = HttpPusher.INITIAL_BACKOFF_SEC
|
|
self.last_stream_ordering = push_action["stream_ordering"]
|
|
pusher_still_exists = (
|
|
await self.store.update_pusher_last_stream_ordering_and_success(
|
|
self.app_id,
|
|
self.pushkey,
|
|
self.user_id,
|
|
self.last_stream_ordering,
|
|
self.clock.time_msec(),
|
|
)
|
|
)
|
|
if not pusher_still_exists:
|
|
# The pusher has been deleted while we were processing, so
|
|
# lets just stop and return.
|
|
self.on_stop()
|
|
return
|
|
|
|
if self.failing_since:
|
|
self.failing_since = None
|
|
await self.store.update_pusher_failing_since(
|
|
self.app_id, self.pushkey, self.user_id, self.failing_since
|
|
)
|
|
else:
|
|
http_push_failed_counter.inc()
|
|
if not self.failing_since:
|
|
self.failing_since = self.clock.time_msec()
|
|
await 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() - HttpPusher.GIVE_UP_AFTER_MS
|
|
):
|
|
# we really only give up so that if the URL gets
|
|
# fixed, we don't suddenly deliver a load
|
|
# of old notifications.
|
|
logger.warning(
|
|
"Giving up on a notification to user %s, pushkey %s",
|
|
self.user_id,
|
|
self.pushkey,
|
|
)
|
|
self.backoff_delay = HttpPusher.INITIAL_BACKOFF_SEC
|
|
self.last_stream_ordering = push_action["stream_ordering"]
|
|
await self.store.update_pusher_last_stream_ordering(
|
|
self.app_id,
|
|
self.pushkey,
|
|
self.user_id,
|
|
self.last_stream_ordering,
|
|
)
|
|
|
|
self.failing_since = None
|
|
await self.store.update_pusher_failing_since(
|
|
self.app_id, self.pushkey, self.user_id, self.failing_since
|
|
)
|
|
else:
|
|
logger.info("Push failed: delaying for %ds", self.backoff_delay)
|
|
self.timed_call = self.hs.get_reactor().callLater(
|
|
self.backoff_delay, self.on_timer
|
|
)
|
|
self.backoff_delay = min(
|
|
self.backoff_delay * 2, self.MAX_BACKOFF_SEC
|
|
)
|
|
break
|
|
|
|
async def _process_one(self, push_action: dict) -> bool:
|
|
if "notify" not in push_action["actions"]:
|
|
return True
|
|
|
|
tweaks = push_rule_evaluator.tweaks_for_actions(push_action["actions"])
|
|
badge = await push_tools.get_badge_count(
|
|
self.hs.get_datastore(),
|
|
self.user_id,
|
|
group_by_room=self._group_unread_count_by_room,
|
|
)
|
|
|
|
event = await self.store.get_event(push_action["event_id"], allow_none=True)
|
|
if event is None:
|
|
return True # It's been redacted
|
|
rejected = await self.dispatch_push(event, tweaks, badge)
|
|
if rejected is False:
|
|
return False
|
|
|
|
if isinstance(rejected, list) or isinstance(rejected, tuple):
|
|
for pk in rejected:
|
|
if pk != self.pushkey:
|
|
# for sanity, we only remove the pushkey if it
|
|
# was the one we actually sent...
|
|
logger.warning(
|
|
("Ignoring rejected pushkey %s because we didn't send it"),
|
|
pk,
|
|
)
|
|
else:
|
|
logger.info("Pushkey %s was rejected: removing", pk)
|
|
await self._pusherpool.remove_pusher(self.app_id, pk, self.user_id)
|
|
return True
|
|
|
|
async def _build_notification_dict(
|
|
self, event: EventBase, tweaks: Dict[str, bool], badge: int
|
|
) -> Dict[str, Any]:
|
|
priority = "low"
|
|
if (
|
|
event.type == EventTypes.Encrypted
|
|
or tweaks.get("highlight")
|
|
or tweaks.get("sound")
|
|
):
|
|
# HACK send our push as high priority only if it generates a sound, highlight
|
|
# or may do so (i.e. is encrypted so has unknown effects).
|
|
priority = "high"
|
|
|
|
# This was checked in the __init__, but mypy doesn't seem to know that.
|
|
assert self.data is not None
|
|
if self.data.get("format") == "event_id_only":
|
|
d = {
|
|
"notification": {
|
|
"event_id": event.event_id,
|
|
"room_id": event.room_id,
|
|
"counts": {"unread": badge},
|
|
"prio": priority,
|
|
"devices": [
|
|
{
|
|
"app_id": self.app_id,
|
|
"pushkey": self.pushkey,
|
|
"pushkey_ts": int(self.pushkey_ts / 1000),
|
|
"data": self.data_minus_url,
|
|
}
|
|
],
|
|
}
|
|
}
|
|
return d
|
|
|
|
ctx = await push_tools.get_context_for_event(self.storage, event, self.user_id)
|
|
|
|
d = {
|
|
"notification": {
|
|
"id": event.event_id, # deprecated: remove soon
|
|
"event_id": event.event_id,
|
|
"room_id": event.room_id,
|
|
"type": event.type,
|
|
"sender": event.user_id,
|
|
"prio": priority,
|
|
"counts": {
|
|
"unread": badge,
|
|
# 'missed_calls': 2
|
|
},
|
|
"devices": [
|
|
{
|
|
"app_id": self.app_id,
|
|
"pushkey": self.pushkey,
|
|
"pushkey_ts": int(self.pushkey_ts / 1000),
|
|
"data": self.data_minus_url,
|
|
"tweaks": tweaks,
|
|
}
|
|
],
|
|
}
|
|
}
|
|
if event.type == "m.room.member" and event.is_state():
|
|
d["notification"]["membership"] = event.content["membership"]
|
|
d["notification"]["user_is_target"] = event.state_key == self.user_id
|
|
if self.hs.config.push_include_content and event.content:
|
|
d["notification"]["content"] = event.content
|
|
|
|
# We no longer send aliases separately, instead, we send the human
|
|
# readable name of the room, which may be an alias.
|
|
if "sender_display_name" in ctx and len(ctx["sender_display_name"]) > 0:
|
|
d["notification"]["sender_display_name"] = ctx["sender_display_name"]
|
|
if "name" in ctx and len(ctx["name"]) > 0:
|
|
d["notification"]["room_name"] = ctx["name"]
|
|
|
|
return d
|
|
|
|
async def dispatch_push(
|
|
self, event: EventBase, tweaks: Dict[str, bool], badge: int
|
|
) -> Union[bool, Iterable[str]]:
|
|
notification_dict = await self._build_notification_dict(event, tweaks, badge)
|
|
if not notification_dict:
|
|
return []
|
|
try:
|
|
resp = await self.http_client.post_json_get_json(
|
|
self.url, notification_dict
|
|
)
|
|
except Exception as e:
|
|
logger.warning(
|
|
"Failed to push event %s to %s: %s %s",
|
|
event.event_id,
|
|
self.name,
|
|
type(e),
|
|
e,
|
|
)
|
|
return False
|
|
rejected = []
|
|
if "rejected" in resp:
|
|
rejected = resp["rejected"]
|
|
return rejected
|
|
|
|
async def _send_badge(self, badge):
|
|
"""
|
|
Args:
|
|
badge (int): number of unread messages
|
|
"""
|
|
logger.debug("Sending updated badge count %d to %s", badge, self.name)
|
|
d = {
|
|
"notification": {
|
|
"id": "",
|
|
"type": None,
|
|
"sender": "",
|
|
"counts": {"unread": badge},
|
|
"devices": [
|
|
{
|
|
"app_id": self.app_id,
|
|
"pushkey": self.pushkey,
|
|
"pushkey_ts": int(self.pushkey_ts / 1000),
|
|
"data": self.data_minus_url,
|
|
}
|
|
],
|
|
}
|
|
}
|
|
try:
|
|
await self.http_client.post_json_get_json(self.url, d)
|
|
http_badges_processed_counter.inc()
|
|
except Exception as e:
|
|
logger.warning(
|
|
"Failed to send badge count to %s: %s %s", self.name, type(e), e
|
|
)
|
|
http_badges_failed_counter.inc()
|