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# -*- coding: utf-8 -*-
# Copyright 2016 OpenMarket 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.
from twisted.internet import defer
from twisted.mail.smtp import sendmail
import email.utils
import email.mime.multipart
from email.mime.text import MIMEText
from synapse.util.async import concurrently_execute
from synapse.util.presentable_names import calculate_room_name, name_from_member_event
from synapse.types import UserID
from synapse.api.errors import StoreError
import jinja2
MESSAGE_FROM_PERSON_IN_ROOM = "You have a message from %s in the %s room"
MESSAGE_FROM_PERSON = "You have a message from %s"
MESSAGES_IN_ROOM = "There are some messages for you in the %s room"
MESSAGES_IN_ROOMS = "Here are some messages you may have missed"
class Mailer(object):
def __init__(self, hs):
self.hs = hs
self.store = self.hs.get_datastore()
self.state_handler = self.hs.get_state_handler()
loader = jinja2.FileSystemLoader(self.hs.config.email_template_dir)
env = jinja2.Environment(loader=loader)
self.notif_template = env.get_template(self.hs.config.email_notif_template_html)
@defer.inlineCallbacks
def send_notification_mail(self, user_id, email_address, push_actions):
raw_from = email.utils.parseaddr(self.hs.config.email_notif_from)[1]
raw_to = email.utils.parseaddr(email_address)[1]
if raw_to == '':
raise RuntimeError("Invalid 'to' address")
rooms_in_order = deduped_ordered_list(
[pa['room_id'] for pa in push_actions]
)
notifs_by_room = {}
for pa in push_actions:
notifs_by_room.setdefault(pa["room_id"], []).append(pa)
# collect the current state for all the rooms in which we have
# notifications
state_by_room = {}
try:
user_display_name = yield self.store.get_profile_displayname(
UserID.from_string(user_id).localpart
)
except StoreError:
user_display_name = user_id
@defer.inlineCallbacks
def _fetch_room_state(room_id):
room_state = yield self.state_handler.get_current_state(room_id)
state_by_room[room_id] = room_state
# Run at most 3 of these at once: sync does 10 at a time but email
# notifs are much realtime than sync so we can afford to wait a bit.
yield concurrently_execute(_fetch_room_state, rooms_in_order, 3)
rooms = [
self.get_room_vars(
r, user_id, notifs_by_room[r], state_by_room[r]
) for r in rooms_in_order
]
summary_text = yield self.make_summary_text(
notifs_by_room, state_by_room, user_id
)
template_vars = {
"user_display_name": user_display_name,
"unsubscribe_link": self.make_unsubscribe_link(),
"summary_text": summary_text,
"rooms": rooms,
}
plainText = self.notif_template.render(**template_vars)
text_part = MIMEText(plainText, "html", "utf8")
text_part['Subject'] = "New Matrix Notifications"
text_part['From'] = self.hs.config.email_notif_from
text_part['To'] = email_address
yield sendmail(
self.hs.config.email_smtp_host,
raw_from, raw_to, text_part.as_string(),
port=self.hs.config.email_smtp_port
)
def get_room_vars(self, room_id, user_id, notifs, room_state):
room_vars = {}
room_vars['title'] = calculate_room_name(room_state, user_id)
return room_vars
@defer.inlineCallbacks
def make_summary_text(self, notifs_by_room, state_by_room, user_id):
if len(notifs_by_room) == 1:
room_id = notifs_by_room.keys()[0]
sender_name = None
if len(notifs_by_room[room_id]) == 1:
# If the room has some kind of name, use it, but we don't
# want the generated-from-names one here otherwise we'll
# end up with, "new message from Bob in the Bob room"
room_name = calculate_room_name(
state_by_room[room_id], user_id, fallback_to_members=False
)
event = yield self.store.get_event(
notifs_by_room[room_id][0]["event_id"]
)
if ("m.room.member", event.sender) in state_by_room[room_id]:
state_event = state_by_room[room_id][("m.room.member", event.sender)]
sender_name = name_from_member_event(state_event)
if sender_name is not None and room_name is not None:
defer.returnValue(
MESSAGE_FROM_PERSON_IN_ROOM % (sender_name, room_name)
)
elif sender_name is not None:
defer.returnValue(MESSAGE_FROM_PERSON % (sender_name,))
else:
room_name = calculate_room_name(state_by_room[room_id], user_id)
defer.returnValue(MESSAGES_IN_ROOM % (room_name,))
else:
defer.returnValue(MESSAGES_IN_ROOMS)
defer.returnValue("Some thing have occurred in some rooms")
def make_unsubscribe_link(self):
return "https://vector.im/#/settings" # XXX: matrix.to
def deduped_ordered_list(l):
seen = set()
ret = []
for item in l:
if item not in seen:
seen.add(item)
ret.append(item)
return ret
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