zulip/zerver/lib/actions.py

3502 lines
150 KiB
Python

from __future__ import absolute_import
from __future__ import print_function
from typing import (
AbstractSet, Any, AnyStr, Callable, Dict, Iterable, Mapping, MutableMapping,
Optional, Sequence, Set, Text, Tuple, TypeVar, Union
)
from django.utils.html import escape
from django.utils.translation import ugettext as _
from django.conf import settings
from django.core import validators
from django.contrib.sessions.models import Session
from zerver.lib.bugdown import (
BugdownRenderingException,
version as bugdown_version
)
from zerver.lib.cache import (
to_dict_cache_key,
to_dict_cache_key_id,
)
from zerver.lib.context_managers import lockfile
from zerver.lib.message import (
access_message,
MessageDict,
message_to_dict,
render_markdown,
)
from zerver.lib.realm_icon import realm_icon_url
from zerver.models import Realm, RealmEmoji, Stream, UserProfile, UserActivity, RealmAlias, \
Subscription, Recipient, Message, Attachment, UserMessage, \
Client, DefaultStream, UserPresence, Referral, PushDeviceToken, MAX_SUBJECT_LENGTH, \
MAX_MESSAGE_LENGTH, get_client, get_stream, get_recipient, get_huddle, \
get_user_profile_by_id, PreregistrationUser, get_display_recipient, \
get_realm, bulk_get_recipients, \
email_allowed_for_realm, email_to_username, display_recipient_cache_key, \
get_user_profile_by_email, get_stream_cache_key, \
UserActivityInterval, get_active_user_dicts_in_realm, get_active_streams, \
realm_filters_for_realm, RealmFilter, receives_offline_notifications, \
ScheduledJob, get_owned_bot_dicts, \
get_old_unclaimed_attachments, get_cross_realm_emails, receives_online_notifications, \
Reaction, EmailChangeStatus
from zerver.lib.alert_words import alert_words_in_realm
from zerver.lib.avatar import avatar_url
from django.db import transaction, IntegrityError, connection
from django.db.models import F, Q
from django.db.models.query import QuerySet
from django.core.exceptions import ValidationError
from importlib import import_module
from django.core.mail import EmailMessage
from django.utils import timezone
from confirmation.models import Confirmation, EmailChangeConfirmation
import six
from six.moves import filter
from six.moves import map
from six.moves import range
from six import unichr
session_engine = import_module(settings.SESSION_ENGINE)
from zerver.lib.create_user import random_api_key
from zerver.lib.timestamp import timestamp_to_datetime, datetime_to_timestamp
from zerver.lib.queue import queue_json_publish
from zerver.lib.create_user import create_user
from zerver.lib import bugdown
from zerver.lib.cache import cache_with_key, cache_set, \
user_profile_by_email_cache_key, cache_set_many, \
cache_delete, cache_delete_many
from zerver.decorator import statsd_increment
from zerver.lib.utils import log_statsd_event, statsd
from zerver.lib.html_diff import highlight_html_differences
from zerver.lib.alert_words import user_alert_words, add_user_alert_words, \
remove_user_alert_words, set_user_alert_words
from zerver.lib.push_notifications import num_push_devices_for_user, \
send_apple_push_notification, send_android_push_notification
from zerver.lib.notifications import clear_followup_emails_queue
from zerver.lib.narrow import check_supported_events_narrow_filter
from zerver.lib.request import JsonableError
from zerver.lib.session_user import get_session_user
from zerver.lib.upload import attachment_url_re, attachment_url_to_path_id, \
claim_attachment, delete_message_image
from zerver.lib.str_utils import NonBinaryStr, force_str
from zerver.tornado.event_queue import request_event_queue, get_user_events, send_event
import DNS
import ujson
import time
import traceback
import re
import datetime
import os
import platform
import logging
import itertools
from collections import defaultdict
# This will be used to type annotate parameters in a function if the function
# works on both str and unicode in python 2 but in python 3 it only works on str.
SizedTextIterable = Union[Sequence[Text], AbstractSet[Text]]
STREAM_ASSIGNMENT_COLORS = [
"#76ce90", "#fae589", "#a6c7e5", "#e79ab5",
"#bfd56f", "#f4ae55", "#b0a5fd", "#addfe5",
"#f5ce6e", "#c2726a", "#94c849", "#bd86e5",
"#ee7e4a", "#a6dcbf", "#95a5fd", "#53a063",
"#9987e1", "#e4523d", "#c2c2c2", "#4f8de4",
"#c6a8ad", "#e7cc4d", "#c8bebf", "#a47462"]
# Store an event in the log for re-importing messages
def log_event(event):
# type: (MutableMapping[str, Any]) -> None
if settings.EVENT_LOG_DIR is None:
return
if "timestamp" not in event:
event["timestamp"] = time.time()
if not os.path.exists(settings.EVENT_LOG_DIR):
os.mkdir(settings.EVENT_LOG_DIR)
template = os.path.join(settings.EVENT_LOG_DIR,
'%s.' + platform.node() +
timezone.now().strftime('.%Y-%m-%d'))
with lockfile(template % ('lock',)):
with open(template % ('events',), 'a') as log:
log.write(force_str(ujson.dumps(event) + u'\n'))
def active_user_ids(realm):
# type: (Realm) -> List[int]
return [userdict['id'] for userdict in get_active_user_dicts_in_realm(realm)]
def can_access_stream_user_ids(stream):
# type: (Stream) -> Set[int]
# return user ids of users who can access the attributes of
# a stream, such as its name/description
if stream.is_public():
return set(active_user_ids(stream.realm))
else:
return private_stream_user_ids(stream)
def private_stream_user_ids(stream):
# type: (Stream) -> Set[int]
# TODO: Find similar queries elsewhere and de-duplicate this code.
subscriptions = Subscription.objects.filter(
recipient__type=Recipient.STREAM,
recipient__type_id=stream.id,
active=True)
return {sub['user_profile_id'] for sub in subscriptions.values('user_profile_id')}
def bot_owner_userids(user_profile):
# type: (UserProfile) -> Sequence[int]
is_private_bot = (
user_profile.default_sending_stream and user_profile.default_sending_stream.invite_only or
user_profile.default_events_register_stream and user_profile.default_events_register_stream.invite_only)
if is_private_bot:
return (user_profile.bot_owner_id,) # TODO: change this to list instead of tuple
else:
return active_user_ids(user_profile.realm)
def realm_user_count(realm):
# type: (Realm) -> int
return UserProfile.objects.filter(realm=realm, is_active=True, is_bot=False).count()
def get_topic_history_for_stream(user_profile, recipient):
# type: (UserProfile, Recipient) -> List[Tuple[str, int]]
# We tested the below query on some large prod datasets, and we never
# saw more than 50ms to execute it, so we think that's acceptable,
# but we will monitor it, and we may later optimize it further.
query = '''
SELECT topic, read, count(*)
FROM (
SELECT
("zerver_usermessage"."flags" & 1) as read,
"zerver_message"."subject" as topic,
"zerver_message"."id" as message_id
FROM "zerver_usermessage"
INNER JOIN "zerver_message" ON (
"zerver_usermessage"."message_id" = "zerver_message"."id"
) WHERE (
"zerver_usermessage"."user_profile_id" = %s AND
"zerver_message"."recipient_id" = %s
) ORDER BY "zerver_usermessage"."message_id" DESC
) messages_for_stream
GROUP BY topic, read
ORDER BY max(message_id) desc
'''
cursor = connection.cursor()
cursor.execute(query, [user_profile.id, recipient.id])
rows = cursor.fetchall()
cursor.close()
topic_names = dict() # type: Dict[str, str]
topic_counts = dict() # type: Dict[str, int]
topics = []
for row in rows:
topic_name, read, count = row
if topic_name.lower() not in topic_names:
topic_names[topic_name.lower()] = topic_name
topic_name = topic_names[topic_name.lower()]
if topic_name not in topic_counts:
topic_counts[topic_name] = 0
topics.append(topic_name)
if not read:
topic_counts[topic_name] += count
history = [(topic, topic_counts[topic]) for topic in topics]
return history
def send_signup_message(sender, signups_stream, user_profile,
internal=False, realm=None):
# type: (UserProfile, Text, UserProfile, bool, Optional[Realm]) -> None
if internal:
# When this is done using manage.py vs. the web interface
internal_blurb = " **INTERNAL SIGNUP** "
else:
internal_blurb = " "
user_count = realm_user_count(user_profile.realm)
# Send notification to realm notifications stream if it exists
# Don't send notification for the first user in a realm
if user_profile.realm.notifications_stream is not None and user_count > 1:
internal_send_message(
user_profile.realm,
sender,
"stream",
user_profile.realm.notifications_stream.name,
"New users", "%s just signed up for Zulip. Say hello!" % (
user_profile.full_name,)
)
# We also send a notification to the Zulip administrative realm
admin_realm = get_user_profile_by_email(sender).realm
internal_send_message(
admin_realm,
sender,
"stream",
signups_stream,
user_profile.realm.domain,
"%s <`%s`> just signed up for Zulip!%s(total: **%i**)" % (
user_profile.full_name,
user_profile.email,
internal_blurb,
user_count,
)
)
def notify_new_user(user_profile, internal=False):
# type: (UserProfile, bool) -> None
if settings.NEW_USER_BOT is not None:
send_signup_message(settings.NEW_USER_BOT, "signups", user_profile, internal)
statsd.gauge("users.signups.%s" % (user_profile.realm.domain.replace('.', '_')), 1, delta=True)
def add_new_user_history(user_profile, streams):
# type: (UserProfile, Iterable[Stream]) -> None
"""Give you the last 100 messages on your public streams, so you have
something to look at in your home view once you finish the
tutorial."""
one_week_ago = timezone.now() - datetime.timedelta(weeks=1)
recipients = Recipient.objects.filter(type=Recipient.STREAM,
type_id__in=[stream.id for stream in streams
if not stream.invite_only])
recent_messages = Message.objects.filter(recipient_id__in=recipients,
pub_date__gt=one_week_ago).order_by("-id")
message_ids_to_use = list(reversed(recent_messages.values_list('id', flat=True)[0:100]))
if len(message_ids_to_use) == 0:
return
# Handle the race condition where a message arrives between
# bulk_add_subscriptions above and the Message query just above
already_ids = set(UserMessage.objects.filter(message_id__in=message_ids_to_use,
user_profile=user_profile).values_list("message_id", flat=True))
ums_to_create = [UserMessage(user_profile=user_profile, message_id=message_id,
flags=UserMessage.flags.read)
for message_id in message_ids_to_use
if message_id not in already_ids]
UserMessage.objects.bulk_create(ums_to_create)
# Does the processing for a new user account:
# * Subscribes to default/invitation streams
# * Fills in some recent historical messages
# * Notifies other users in realm and Zulip about the signup
# * Deactivates PreregistrationUser objects
# * subscribe the user to newsletter if newsletter_data is specified
def process_new_human_user(user_profile, prereg_user=None, newsletter_data=None):
# type: (UserProfile, Optional[PreregistrationUser], Optional[Dict[str, str]]) -> None
mit_beta_user = user_profile.realm.is_zephyr_mirror_realm
try:
streams = prereg_user.streams.all()
except AttributeError:
# This will catch both the case where prereg_user is None and where it
# is a MitUser.
streams = []
# If the user's invitation didn't explicitly list some streams, we
# add the default streams
if len(streams) == 0:
streams = get_default_subs(user_profile)
bulk_add_subscriptions(streams, [user_profile])
add_new_user_history(user_profile, streams)
# mit_beta_users don't have a referred_by field
if not mit_beta_user and prereg_user is not None and prereg_user.referred_by is not None \
and settings.NOTIFICATION_BOT is not None:
# This is a cross-realm private message.
internal_send_message(
user_profile.realm,
settings.NOTIFICATION_BOT,
"private",
prereg_user.referred_by.email,
user_profile.realm.domain,
"%s <`%s`> accepted your invitation to join Zulip!" % (
user_profile.full_name,
user_profile.email,
)
)
# Mark any other PreregistrationUsers that are STATUS_ACTIVE as
# inactive so we can keep track of the PreregistrationUser we
# actually used for analytics
if prereg_user is not None:
PreregistrationUser.objects.filter(email__iexact=user_profile.email).exclude(
id=prereg_user.id).update(status=0)
else:
PreregistrationUser.objects.filter(email__iexact=user_profile.email).update(status=0)
notify_new_user(user_profile)
if newsletter_data is not None:
# If the user was created automatically via the API, we may
# not want to register them for the newsletter
queue_json_publish(
"signups",
{
'email_address': user_profile.email,
'merge_fields': {
'NAME': user_profile.full_name,
'REALM_ID': user_profile.realm_id,
'OPTIN_IP': newsletter_data["IP"],
'OPTIN_TIME': datetime.datetime.isoformat(timezone.now().replace(microsecond=0)),
},
},
lambda event: None)
def notify_created_user(user_profile):
# type: (UserProfile) -> None
event = dict(type="realm_user", op="add",
person=dict(email=user_profile.email,
user_id=user_profile.id,
is_admin=user_profile.is_realm_admin,
full_name=user_profile.full_name,
avatar_url=avatar_url(user_profile),
is_bot=user_profile.is_bot))
send_event(event, active_user_ids(user_profile.realm))
def notify_created_bot(user_profile):
# type: (UserProfile) -> None
def stream_name(stream):
# type: (Stream) -> Optional[Text]
if not stream:
return None
return stream.name
default_sending_stream_name = stream_name(user_profile.default_sending_stream)
default_events_register_stream_name = stream_name(user_profile.default_events_register_stream)
bot = dict(email=user_profile.email,
user_id=user_profile.id,
full_name=user_profile.full_name,
is_active=user_profile.is_active,
api_key=user_profile.api_key,
default_sending_stream=default_sending_stream_name,
default_events_register_stream=default_events_register_stream_name,
default_all_public_streams=user_profile.default_all_public_streams,
avatar_url=avatar_url(user_profile),
)
# Set the owner key only when the bot has an owner.
# The default bots don't have an owner. So don't
# set the owner key while reactivating them.
if user_profile.bot_owner is not None:
bot['owner'] = user_profile.bot_owner.email
event = dict(type="realm_bot", op="add", bot=bot)
send_event(event, bot_owner_userids(user_profile))
def do_create_user(email, password, realm, full_name, short_name,
active=True, bot_type=None, bot_owner=None, tos_version=None,
avatar_source=UserProfile.AVATAR_FROM_GRAVATAR,
default_sending_stream=None, default_events_register_stream=None,
default_all_public_streams=None, prereg_user=None,
newsletter_data=None):
# type: (Text, Text, Realm, Text, Text, bool, Optional[int], Optional[UserProfile], Optional[Text], Text, Optional[Stream], Optional[Stream], bool, Optional[PreregistrationUser], Optional[Dict[str, str]]) -> UserProfile
event = {'type': 'user_created',
'timestamp': time.time(),
'full_name': full_name,
'short_name': short_name,
'user': email,
'domain': realm.domain,
'bot': bool(bot_type)}
if bot_type:
event['bot_owner'] = bot_owner.email
log_event(event)
user_profile = create_user(email=email, password=password, realm=realm,
full_name=full_name, short_name=short_name,
active=active, bot_type=bot_type, bot_owner=bot_owner,
tos_version=tos_version, avatar_source=avatar_source,
default_sending_stream=default_sending_stream,
default_events_register_stream=default_events_register_stream,
default_all_public_streams=default_all_public_streams)
notify_created_user(user_profile)
if bot_type:
notify_created_bot(user_profile)
else:
process_new_human_user(user_profile, prereg_user=prereg_user,
newsletter_data=newsletter_data)
return user_profile
def user_sessions(user_profile):
# type: (UserProfile) -> List[Session]
return [s for s in Session.objects.all()
if get_session_user(s) == user_profile.id]
def delete_session(session):
# type: (Session) -> None
session_engine.SessionStore(session.session_key).delete() # type: ignore # import_module
def delete_user_sessions(user_profile):
# type: (UserProfile) -> None
for session in Session.objects.all():
if get_session_user(session) == user_profile.id:
delete_session(session)
def delete_realm_user_sessions(realm):
# type: (Realm) -> None
realm_user_ids = [user_profile.id for user_profile in
UserProfile.objects.filter(realm=realm)]
for session in Session.objects.filter(expire_date__gte=timezone.now()):
if get_session_user(session) in realm_user_ids:
delete_session(session)
def delete_all_user_sessions():
# type: () -> None
for session in Session.objects.all():
delete_session(session)
def delete_all_deactivated_user_sessions():
# type: () -> None
for session in Session.objects.all():
user_profile_id = get_session_user(session)
if user_profile_id is None:
continue
user_profile = get_user_profile_by_id(user_profile_id)
if not user_profile.is_active or user_profile.realm.deactivated:
logging.info("Deactivating session for deactivated user %s" % (user_profile.email,))
delete_session(session)
def active_humans_in_realm(realm):
# type: (Realm) -> Sequence[UserProfile]
return UserProfile.objects.filter(realm=realm, is_active=True, is_bot=False)
def do_set_realm_name(realm, name):
# type: (Realm, Text) -> None
realm.name = name
realm.save(update_fields=['name'])
event = dict(
type="realm",
op="update",
property='name',
value=name,
)
send_event(event, active_user_ids(realm))
def do_set_realm_restricted_to_domain(realm, restricted):
# type: (Realm, bool) -> None
realm.restricted_to_domain = restricted
realm.save(update_fields=['restricted_to_domain'])
event = dict(
type="realm",
op="update",
property='restricted_to_domain',
value=restricted,
)
send_event(event, active_user_ids(realm))
def do_set_realm_invite_required(realm, invite_required):
# type: (Realm, bool) -> None
realm.invite_required = invite_required
realm.save(update_fields=['invite_required'])
event = dict(
type="realm",
op="update",
property='invite_required',
value=invite_required,
)
send_event(event, active_user_ids(realm))
def do_set_realm_invite_by_admins_only(realm, invite_by_admins_only):
# type: (Realm, bool) -> None
realm.invite_by_admins_only = invite_by_admins_only
realm.save(update_fields=['invite_by_admins_only'])
event = dict(
type="realm",
op="update",
property='invite_by_admins_only',
value=invite_by_admins_only,
)
send_event(event, active_user_ids(realm))
def do_set_realm_authentication_methods(realm, authentication_methods):
# type: (Realm, Dict[str, bool]) -> None
for key, value in list(authentication_methods.items()):
index = getattr(realm.authentication_methods, key).number
realm.authentication_methods.set_bit(index, int(value))
realm.save(update_fields=['authentication_methods'])
event = dict(
type="realm",
op="update_dict",
property='default',
data=dict(authentication_methods=realm.authentication_methods_dict())
)
send_event(event, active_user_ids(realm))
def do_set_realm_create_stream_by_admins_only(realm, create_stream_by_admins_only):
# type: (Realm, bool) -> None
realm.create_stream_by_admins_only = create_stream_by_admins_only
realm.save(update_fields=['create_stream_by_admins_only'])
event = dict(
type="realm",
op="update",
property='create_stream_by_admins_only',
value=create_stream_by_admins_only,
)
send_event(event, active_user_ids(realm))
def do_set_realm_add_emoji_by_admins_only(realm, add_emoji_by_admins_only):
# type: (Realm, bool) -> None
realm.add_emoji_by_admins_only = add_emoji_by_admins_only
realm.save(update_fields=['add_emoji_by_admins_only'])
event = dict(
type="realm",
op="update",
property='add_emoji_by_admins_only',
value=add_emoji_by_admins_only,
)
send_event(event, active_user_ids(realm))
def do_set_realm_message_editing(realm, allow_message_editing, message_content_edit_limit_seconds):
# type: (Realm, bool, int) -> None
realm.allow_message_editing = allow_message_editing
realm.message_content_edit_limit_seconds = message_content_edit_limit_seconds
realm.save(update_fields=['allow_message_editing', 'message_content_edit_limit_seconds'])
event = dict(
type="realm",
op="update_dict",
property="default",
data=dict(allow_message_editing=allow_message_editing,
message_content_edit_limit_seconds=message_content_edit_limit_seconds),
)
send_event(event, active_user_ids(realm))
def do_set_realm_default_language(realm, default_language):
# type: (Realm, Text) -> None
realm.default_language = default_language
realm.save(update_fields=['default_language'])
event = dict(
type="realm",
op="update",
property="default_language",
value=default_language
)
send_event(event, active_user_ids(realm))
def do_set_realm_waiting_period_threshold(realm, threshold):
# type: (Realm, int) -> None
realm.waiting_period_threshold = threshold
realm.save(update_fields=['waiting_period_threshold'])
event = dict(
type="realm",
op="update",
property='waiting_period_threshold',
value=threshold,
)
send_event(event, active_user_ids(realm))
def do_deactivate_realm(realm):
# type: (Realm) -> None
"""
Deactivate this realm. Do NOT deactivate the users -- we need to be able to
tell the difference between users that were intentionally deactivated,
e.g. by a realm admin, and users who can't currently use Zulip because their
realm has been deactivated.
"""
if realm.deactivated:
return
realm.deactivated = True
realm.save(update_fields=["deactivated"])
for user in active_humans_in_realm(realm):
# Don't deactivate the users, but do delete their sessions so they get
# bumped to the login screen, where they'll get a realm deactivation
# notice when they try to log in.
delete_user_sessions(user)
def do_reactivate_realm(realm):
# type: (Realm) -> None
realm.deactivated = False
realm.save(update_fields=["deactivated"])
def do_deactivate_user(user_profile, log=True, _cascade=True):
# type: (UserProfile, bool, bool) -> None
if not user_profile.is_active:
return
user_profile.is_active = False
user_profile.save(update_fields=["is_active"])
delete_user_sessions(user_profile)
if log:
log_event({'type': 'user_deactivated',
'timestamp': time.time(),
'user': user_profile.email,
'domain': user_profile.realm.domain})
event = dict(type="realm_user", op="remove",
person=dict(email=user_profile.email,
user_id=user_profile.id,
full_name=user_profile.full_name))
send_event(event, active_user_ids(user_profile.realm))
if user_profile.is_bot:
event = dict(type="realm_bot", op="remove",
bot=dict(email=user_profile.email,
user_id=user_profile.id,
full_name=user_profile.full_name))
send_event(event, bot_owner_userids(user_profile))
if _cascade:
bot_profiles = UserProfile.objects.filter(is_bot=True, is_active=True,
bot_owner=user_profile)
for profile in bot_profiles:
do_deactivate_user(profile, _cascade=False)
def do_deactivate_stream(stream, log=True):
# type: (Stream, bool) -> None
# Get the affected user ids *before* we deactivate everybody.
affected_user_ids = can_access_stream_user_ids(stream)
Subscription.objects.select_related('user_profile').filter(
recipient__type=Recipient.STREAM,
recipient__type_id=stream.id,
active=True).update(active=False)
was_invite_only = stream.invite_only
stream.deactivated = True
stream.invite_only = True
# Preserve as much as possible the original stream name while giving it a
# special prefix that both indicates that the stream is deactivated and
# frees up the original name for reuse.
old_name = stream.name
new_name = ("!DEACTIVATED:" + old_name)[:Stream.MAX_NAME_LENGTH]
for i in range(20):
existing_deactivated_stream = get_stream(new_name, stream.realm)
if existing_deactivated_stream:
# This stream has alrady been deactivated, keep prepending !s until
# we have a unique stream name or you've hit a rename limit.
new_name = ("!" + new_name)[:Stream.MAX_NAME_LENGTH]
else:
break
# If you don't have a unique name at this point, this will fail later in the
# code path.
stream.name = new_name[:Stream.MAX_NAME_LENGTH]
stream.save()
DefaultStream.objects.filter(realm=stream.realm, stream=stream).delete()
# Remove the old stream information from remote cache.
old_cache_key = get_stream_cache_key(old_name, stream.realm)
cache_delete(old_cache_key)
stream_dict = stream.to_dict()
stream_dict.update(dict(name=old_name, invite_only=was_invite_only))
event = dict(type="stream", op="delete",
streams=[stream_dict])
send_event(event, affected_user_ids)
def do_change_user_email(user_profile, new_email):
# type: (UserProfile, Text) -> None
old_email = user_profile.email
user_profile.email = new_email
user_profile.save(update_fields=["email"])
payload = dict(user_id=user_profile.id,
new_email=new_email)
send_event(dict(type='realm_user', op='update', person=payload),
active_user_ids(user_profile.realm))
log_event({'type': 'user_email_changed',
'old_email': old_email,
'new_email': new_email})
def do_start_email_change_process(user_profile, new_email):
# type: (UserProfile, Text) -> None
old_email = user_profile.email
user_profile.email = new_email
context = {'support_email': settings.ZULIP_ADMINISTRATOR,
'verbose_support_offers': settings.VERBOSE_SUPPORT_OFFERS,
'realm': user_profile.realm,
'old_email': old_email,
'new_email': new_email,
}
with transaction.atomic():
obj = EmailChangeStatus.objects.create(new_email=new_email,
old_email=old_email,
user_profile=user_profile,
realm=user_profile.realm)
EmailChangeConfirmation.objects.send_confirmation(
obj, new_email,
additional_context=context,
host=user_profile.realm.host,
)
def compute_irc_user_fullname(email):
# type: (NonBinaryStr) -> NonBinaryStr
return email.split("@")[0] + " (IRC)"
def compute_jabber_user_fullname(email):
# type: (NonBinaryStr) -> NonBinaryStr
return email.split("@")[0] + " (XMPP)"
def compute_mit_user_fullname(email):
# type: (NonBinaryStr) -> NonBinaryStr
try:
# Input is either e.g. username@mit.edu or user|CROSSREALM.INVALID@mit.edu
match_user = re.match(r'^([a-zA-Z0-9_.-]+)(\|.+)?@mit\.edu$', email.lower())
if match_user and match_user.group(2) is None:
answer = DNS.dnslookup(
"%s.passwd.ns.athena.mit.edu" % (match_user.group(1),),
DNS.Type.TXT)
hesiod_name = force_str(answer[0][0]).split(':')[4].split(',')[0].strip()
if hesiod_name != "":
return hesiod_name
elif match_user:
return match_user.group(1).lower() + "@" + match_user.group(2).upper()[1:]
except DNS.Base.ServerError:
pass
except:
print("Error getting fullname for %s:" % (email,))
traceback.print_exc()
return email.lower()
@cache_with_key(lambda realm, email, f: user_profile_by_email_cache_key(email),
timeout=3600*24*7)
def create_mirror_user_if_needed(realm, email, email_to_fullname):
# type: (Realm, Text, Callable[[Text], Text]) -> UserProfile
try:
return get_user_profile_by_email(email)
except UserProfile.DoesNotExist:
try:
# Forge a user for this person
return create_user(email, None, realm,
email_to_fullname(email), email_to_username(email),
active=False, is_mirror_dummy=True)
except IntegrityError:
return get_user_profile_by_email(email)
def log_message(message):
# type: (Message) -> None
if not message.sending_client.name.startswith("test:"):
log_event(message.to_log_dict())
def render_incoming_message(message, content, message_users, realm):
# type: (Message, Text, Set[UserProfile], Realm) -> Text
realm_alert_words = alert_words_in_realm(realm)
try:
rendered_content = render_markdown(
message=message,
content=content,
realm=realm,
realm_alert_words=realm_alert_words,
message_users=message_users,
)
except BugdownRenderingException:
raise JsonableError(_('Unable to render message'))
return rendered_content
def get_recipient_user_profiles(recipient, sender_id):
# type: (Recipient, Text) -> List[UserProfile]
if recipient.type == Recipient.PERSONAL:
recipients = list(set([get_user_profile_by_id(recipient.type_id),
get_user_profile_by_id(sender_id)]))
# For personals, you send out either 1 or 2 copies, for
# personals to yourself or to someone else, respectively.
assert((len(recipients) == 1) or (len(recipients) == 2))
elif (recipient.type == Recipient.STREAM or recipient.type == Recipient.HUDDLE):
# We use select_related()/only() here, while the PERSONAL case above uses
# get_user_profile_by_id() to get UserProfile objects from cache. Streams will
# typically have more recipients than PMs, so get_user_profile_by_id() would be
# a bit more expensive here, given that we need to hit the DB anyway and only
# care about the email from the user profile.
fields = [
'user_profile__id',
'user_profile__email',
'user_profile__enable_online_push_notifications',
'user_profile__is_active',
'user_profile__realm__domain'
]
query = Subscription.objects.select_related("user_profile", "user_profile__realm").only(*fields).filter(
recipient=recipient, active=True)
recipients = [s.user_profile for s in query]
else:
raise ValueError('Bad recipient type')
return recipients
def do_send_messages(messages):
# type: (Sequence[Optional[MutableMapping[str, Any]]]) -> List[int]
# Filter out messages which didn't pass internal_prep_message properly
messages = [message for message in messages if message is not None]
# Filter out zephyr mirror anomalies where the message was already sent
already_sent_ids = [] # type: List[int]
new_messages = [] # type: List[MutableMapping[str, Any]]
for message in messages:
if isinstance(message['message'], int):
already_sent_ids.append(message['message'])
else:
new_messages.append(message)
messages = new_messages
# For consistency, changes to the default values for these gets should also be applied
# to the default args in do_send_message
for message in messages:
message['rendered_content'] = message.get('rendered_content', None)
message['no_log'] = message.get('no_log', False)
message['stream'] = message.get('stream', None)
message['local_id'] = message.get('local_id', None)
message['sender_queue_id'] = message.get('sender_queue_id', None)
message['realm'] = message.get('realm', message['message'].sender.realm)
# Log the message to our message log for populate_db to refill
for message in messages:
if not message['no_log']:
log_message(message['message'])
for message in messages:
message['recipients'] = get_recipient_user_profiles(message['message'].recipient,
message['message'].sender_id)
# Only deliver the message to active user recipients
message['active_recipients'] = [user_profile for user_profile in message['recipients']
if user_profile.is_active]
links_for_embed = set() # type: Set[Text]
# Render our messages.
for message in messages:
assert message['message'].rendered_content is None
rendered_content = render_incoming_message(
message['message'],
message['message'].content,
message['active_recipients'],
message['realm'])
message['message'].rendered_content = rendered_content
message['message'].rendered_content_version = bugdown_version
links_for_embed |= message['message'].links_for_preview
for message in messages:
message['message'].update_calculated_fields()
# Save the message receipts in the database
user_message_flags = defaultdict(dict) # type: Dict[int, Dict[int, List[str]]]
with transaction.atomic():
Message.objects.bulk_create([message['message'] for message in messages])
ums = [] # type: List[UserMessage]
for message in messages:
ums_to_create = [UserMessage(user_profile=user_profile, message=message['message'])
for user_profile in message['active_recipients']]
# These properties on the Message are set via
# render_markdown by code in the bugdown inline patterns
wildcard = message['message'].mentions_wildcard
mentioned_ids = message['message'].mentions_user_ids
ids_with_alert_words = message['message'].user_ids_with_alert_words
is_me_message = message['message'].is_me_message
for um in ums_to_create:
if um.user_profile.id == message['message'].sender.id and \
message['message'].sent_by_human():
um.flags |= UserMessage.flags.read
if wildcard:
um.flags |= UserMessage.flags.wildcard_mentioned
if um.user_profile_id in mentioned_ids:
um.flags |= UserMessage.flags.mentioned
if um.user_profile_id in ids_with_alert_words:
um.flags |= UserMessage.flags.has_alert_word
if is_me_message:
um.flags |= UserMessage.flags.is_me_message
user_message_flags[message['message'].id][um.user_profile_id] = um.flags_list()
ums.extend(ums_to_create)
UserMessage.objects.bulk_create(ums)
# Claim attachments in message
for message in messages:
if Message.content_has_attachment(message['message'].content):
do_claim_attachments(message['message'])
for message in messages:
# Render Markdown etc. here and store (automatically) in
# remote cache, so that the single-threaded Tornado server
# doesn't have to.
user_flags = user_message_flags.get(message['message'].id, {})
sender = message['message'].sender
user_presences = get_status_dict(sender)
presences = {}
for user_profile in message['active_recipients']:
if user_profile.email in user_presences:
presences[user_profile.id] = user_presences[user_profile.email]
event = dict(
type = 'message',
message = message['message'].id,
message_dict_markdown = message_to_dict(message['message'], apply_markdown=True),
message_dict_no_markdown = message_to_dict(message['message'], apply_markdown=False),
presences = presences)
users = [{'id': user.id,
'flags': user_flags.get(user.id, []),
'always_push_notify': user.enable_online_push_notifications}
for user in message['active_recipients']]
if message['message'].recipient.type == Recipient.STREAM:
# Note: This is where authorization for single-stream
# get_updates happens! We only attach stream data to the
# notify new_message request if it's a public stream,
# ensuring that in the tornado server, non-public stream
# messages are only associated to their subscribed users.
if message['stream'] is None:
message['stream'] = Stream.objects.select_related("realm").get(id=message['message'].recipient.type_id)
if message['stream'].is_public():
event['realm_id'] = message['stream'].realm_id
event['stream_name'] = message['stream'].name
if message['stream'].invite_only:
event['invite_only'] = True
if message['local_id'] is not None:
event['local_id'] = message['local_id']
if message['sender_queue_id'] is not None:
event['sender_queue_id'] = message['sender_queue_id']
send_event(event, users)
if settings.INLINE_URL_EMBED_PREVIEW and links_for_embed:
event_data = {
'message_id': message['message'].id,
'message_content': message['message'].content,
'message_realm_id': message['realm'].id,
'urls': links_for_embed}
queue_json_publish('embed_links', event_data, lambda x: None)
if (settings.ENABLE_FEEDBACK and
message['message'].recipient.type == Recipient.PERSONAL and
settings.FEEDBACK_BOT in [up.email for up in message['recipients']]):
queue_json_publish(
'feedback_messages',
message_to_dict(message['message'], apply_markdown=False),
lambda x: None
)
# Note that this does not preserve the order of message ids
# returned. In practice, this shouldn't matter, as we only
# mirror single zephyr messages at a time and don't otherwise
# intermingle sending zephyr messages with other messages.
return already_sent_ids + [message['message'].id for message in messages]
def do_add_reaction(user_profile, message, emoji_name):
# type: (UserProfile, Message, Text) -> None
reaction = Reaction(user_profile=user_profile, message=message, emoji_name=emoji_name)
reaction.save()
user_dict = {'user_id': user_profile.id,
'email': user_profile.email,
'full_name': user_profile.full_name}
event = {'type': 'reaction',
'op': 'add',
'user': user_dict,
'message_id': message.id,
'emoji_name': emoji_name} # type: Dict[str, Any]
# Update the cached message since new reaction is added.
update_to_dict_cache([message])
# Recipients for message update events, including reactions, are
# everyone who got the original message. This means reactions
# won't live-update in preview narrows, but it's the right
# performance tradeoff, since otherwise we'd need to send all
# reactions to public stream messages to every browser for every
# client in the organization, which doesn't scale.
ums = UserMessage.objects.filter(message=message.id)
send_event(event, [um.user_profile_id for um in ums])
def do_remove_reaction(user_profile, message, emoji_name):
# type: (UserProfile, Message, Text) -> None
Reaction.objects.filter(user_profile=user_profile,
message=message,
emoji_name=emoji_name).delete()
user_dict = {'user_id': user_profile.id,
'email': user_profile.email,
'full_name': user_profile.full_name} # type: Dict[str, Any]
event = {'type': 'reaction',
'op': 'remove',
'user': user_dict,
'message_id': message.id,
'emoji_name': emoji_name} # type: Dict[str, Any]
# Clear the cached message since reaction is removed.
update_to_dict_cache([message])
# Recipients for message update events, including reactions, are
# everyone who got the original message. This means reactions
# won't live-update in preview narrows, but it's the right
# performance tradeoff, since otherwise we'd need to send all
# reactions to public stream messages to every browser for every
# client in the organization, which doesn't scale.
ums = UserMessage.objects.filter(message=message.id)
send_event(event, [um.user_profile_id for um in ums])
def do_send_typing_notification(notification):
# type: (Dict[str, Any]) -> None
recipient_user_profiles = get_recipient_user_profiles(notification['recipient'],
notification['sender'].id)
# Only deliver the notification to active user recipients
user_ids_to_notify = [profile.id for profile in recipient_user_profiles if profile.is_active]
sender_dict = {'user_id': notification['sender'].id, 'email': notification['sender'].email}
# Include a list of recipients in the event body to help identify where the typing is happening
recipient_dicts = [{'user_id': profile.id, 'email': profile.email} for profile in recipient_user_profiles]
event = dict(
type = 'typing',
op = notification['op'],
sender = sender_dict,
recipients = recipient_dicts)
send_event(event, user_ids_to_notify)
# check_send_typing_notification:
# Checks the typing notification and sends it
def check_send_typing_notification(sender, notification_to, operator):
# type: (UserProfile, Sequence[Text], Text) -> None
typing_notification = check_typing_notification(sender, notification_to, operator)
do_send_typing_notification(typing_notification)
# check_typing_notification:
# Returns typing notification ready for sending with do_send_typing_notification on success
# or the error message (string) on error.
def check_typing_notification(sender, notification_to, operator):
# type: (UserProfile, Sequence[Text], Text) -> Dict[str, Any]
if len(notification_to) == 0:
raise JsonableError(_('Missing parameter: \'to\' (recipient)'))
elif operator not in ('start', 'stop'):
raise JsonableError(_('Invalid \'op\' value (should be start or stop)'))
else:
try:
recipient = recipient_for_emails(notification_to, False,
sender, sender)
except ValidationError as e:
assert isinstance(e.messages[0], six.string_types)
raise JsonableError(e.messages[0])
if recipient.type == Recipient.STREAM:
raise ValueError('Forbidden recipient type')
return {'sender': sender, 'recipient': recipient, 'op': operator}
def create_stream_if_needed(realm, stream_name, invite_only=False, stream_description = ""):
# type: (Realm, Text, bool, Text) -> Tuple[Stream, bool]
(stream, created) = Stream.objects.get_or_create(
realm=realm, name__iexact=stream_name,
defaults={'name': stream_name,
'description': stream_description,
'invite_only': invite_only})
if created:
Recipient.objects.create(type_id=stream.id, type=Recipient.STREAM)
if not invite_only:
event = dict(type="stream", op="create",
streams=[stream.to_dict()])
send_event(event, active_user_ids(realm))
return stream, created
def create_streams_if_needed(realm, stream_dicts):
# type: (Realm, List[Mapping[str, Any]]) -> Tuple[List[Stream], List[Stream]]
"""Note that stream_dict["name"] is assumed to already be stripped of
whitespace"""
added_streams = [] # type: List[Stream]
existing_streams = [] # type: List[Stream]
for stream_dict in stream_dicts:
stream, created = create_stream_if_needed(realm,
stream_dict["name"],
invite_only=stream_dict.get("invite_only", False),
stream_description=stream_dict.get("description", ""))
if created:
added_streams.append(stream)
else:
existing_streams.append(stream)
return added_streams, existing_streams
def recipient_for_emails(emails, not_forged_mirror_message,
user_profile, sender):
# type: (Iterable[Text], bool, UserProfile, UserProfile) -> Recipient
recipient_profile_ids = set()
# We exempt cross-realm bots from the check that all the recipients
# are in the same domain.
realm_domains = set()
exempt_emails = get_cross_realm_emails()
if sender.email not in exempt_emails:
realm_domains.add(sender.realm.domain)
for email in emails:
try:
user_profile = get_user_profile_by_email(email)
except UserProfile.DoesNotExist:
raise ValidationError(_("Invalid email '%s'") % (email,))
if (not user_profile.is_active and not user_profile.is_mirror_dummy) or \
user_profile.realm.deactivated:
raise ValidationError(_("'%s' is no longer using Zulip.") % (email,))
recipient_profile_ids.add(user_profile.id)
if email not in exempt_emails:
realm_domains.add(user_profile.realm.domain)
if not_forged_mirror_message and user_profile.id not in recipient_profile_ids:
raise ValidationError(_("User not authorized for this query"))
if len(realm_domains) > 1:
raise ValidationError(_("You can't send private messages outside of your organization."))
# If the private message is just between the sender and
# another person, force it to be a personal internally
if (len(recipient_profile_ids) == 2 and
sender.id in recipient_profile_ids):
recipient_profile_ids.remove(sender.id)
if len(recipient_profile_ids) > 1:
# Make sure the sender is included in huddle messages
recipient_profile_ids.add(sender.id)
huddle = get_huddle(list(recipient_profile_ids))
return get_recipient(Recipient.HUDDLE, huddle.id)
else:
return get_recipient(Recipient.PERSONAL, list(recipient_profile_ids)[0])
def already_sent_mirrored_message_id(message):
# type: (Message) -> Optional[int]
if message.recipient.type == Recipient.HUDDLE:
# For huddle messages, we use a 10-second window because the
# timestamps aren't guaranteed to actually match between two
# copies of the same message.
time_window = datetime.timedelta(seconds=10)
else:
time_window = datetime.timedelta(seconds=0)
messages = Message.objects.filter(
sender=message.sender,
recipient=message.recipient,
content=message.content,
subject=message.subject,
sending_client=message.sending_client,
pub_date__gte=message.pub_date - time_window,
pub_date__lte=message.pub_date + time_window)
if messages.exists():
return messages[0].id
return None
def extract_recipients(s):
# type: (Union[str, Iterable[Text]]) -> List[Text]
# We try to accept multiple incoming formats for recipients.
# See test_extract_recipients() for examples of what we allow.
try:
data = ujson.loads(s) # type: ignore # This function has a super weird union argument.
except ValueError:
data = s
if isinstance(data, six.string_types):
data = data.split(',') # type: ignore # https://github.com/python/typeshed/pull/138
if not isinstance(data, list):
raise ValueError("Invalid data type for recipients")
recipients = data
# Strip recipients, and then remove any duplicates and any that
# are the empty string after being stripped.
recipients = [recipient.strip() for recipient in recipients]
return list(set(recipient for recipient in recipients if recipient))
# check_send_message:
# Returns the id of the sent message. Has same argspec as check_message.
def check_send_message(sender, client, message_type_name, message_to,
subject_name, message_content, realm=None, forged=False,
forged_timestamp=None, forwarder_user_profile=None, local_id=None,
sender_queue_id=None):
# type: (UserProfile, Client, Text, Sequence[Text], Optional[Text], Text, Optional[Realm], bool, Optional[float], Optional[UserProfile], Optional[Text], Optional[Text]) -> int
message = check_message(sender, client, message_type_name, message_to,
subject_name, message_content, realm, forged, forged_timestamp,
forwarder_user_profile, local_id, sender_queue_id)
return do_send_messages([message])[0]
def check_stream_name(stream_name):
# type: (Text) -> None
if stream_name.strip() == "":
raise JsonableError(_("Invalid stream name '%s'" % (stream_name)))
if len(stream_name) > Stream.MAX_NAME_LENGTH:
raise JsonableError(_("Stream name too long (limit: %s characters)" % (Stream.MAX_NAME_LENGTH)))
def send_pm_if_empty_stream(sender, stream, stream_name, realm):
# type: (UserProfile, Stream, Text, Realm) -> None
"""If a bot sends a message to a stream that doesn't exist or has no
subscribers, sends a notification to the bot owner (if not a
cross-realm bot) so that the owner can correct the issue."""
if sender.realm.is_zephyr_mirror_realm or sender.realm.deactivated:
return
if not sender.is_bot or sender.bot_owner is None:
return
# Don't send these notifications for cross-realm bot messages
# (e.g. from EMAIL_GATEWAY_BOT) since the owner for
# EMAIL_GATEWAY_BOT is probably the server administrator, not
# the owner of the bot who could potentially fix the problem.
if sender.realm != realm:
return
if stream is not None:
num_subscribers = stream.num_subscribers()
if num_subscribers > 0:
return
# We warn the user once every 5 minutes to avoid a flood of
# PMs on a misconfigured integration, re-using the
# UserProfile.last_reminder field, which is not used for bots.
last_reminder = sender.last_reminder
waitperiod = datetime.timedelta(minutes=UserProfile.BOT_OWNER_STREAM_ALERT_WAITPERIOD)
if last_reminder and timezone.now() - last_reminder <= waitperiod:
return
if stream is None:
error_msg = "that stream does not yet exist. To create it, "
else:
# num_subscribers == 0
error_msg = "there are no subscribers to that stream. To join it, "
content = ("Hi there! We thought you'd like to know that your bot **%s** just "
"tried to send a message to stream `%s`, but %s"
"click the gear in the left-side stream list." %
(sender.full_name, stream_name, error_msg))
message = internal_prep_message(realm, settings.NOTIFICATION_BOT, "private",
sender.bot_owner.email, "", content)
do_send_messages([message])
sender.last_reminder = timezone.now()
sender.save(update_fields=['last_reminder'])
# check_message:
# Returns message ready for sending with do_send_message on success or the error message (string) on error.
def check_message(sender, client, message_type_name, message_to,
subject_name, message_content_raw, realm=None, forged=False,
forged_timestamp=None, forwarder_user_profile=None, local_id=None,
sender_queue_id=None):
# type: (UserProfile, Client, Text, Sequence[Text], Text, Text, Optional[Realm], bool, Optional[float], Optional[UserProfile], Optional[Text], Optional[Text]) -> Dict[str, Any]
stream = None
if not message_to and message_type_name == 'stream' and sender.default_sending_stream:
# Use the users default stream
message_to = [sender.default_sending_stream.name]
if len(message_to) == 0:
raise JsonableError(_("Message must have recipients"))
message_content = message_content_raw.rstrip()
if len(message_content) == 0:
raise JsonableError(_("Message must not be empty"))
message_content = truncate_body(message_content)
if realm is None:
realm = sender.realm
if message_type_name == 'stream':
if len(message_to) > 1:
raise JsonableError(_("Cannot send to multiple streams"))
stream_name = message_to[0].strip()
check_stream_name(stream_name)
if subject_name is None:
raise JsonableError(_("Missing topic"))
subject = subject_name.strip()
if subject == "":
raise JsonableError(_("Topic can't be empty"))
subject = truncate_topic(subject)
stream = get_stream(stream_name, realm)
send_pm_if_empty_stream(sender, stream, stream_name, realm)
if stream is None:
raise JsonableError(_("Stream '%(stream_name)s' does not exist") % {'stream_name': escape(stream_name)})
recipient = get_recipient(Recipient.STREAM, stream.id)
if not stream.invite_only:
# This is a public stream
pass
elif subscribed_to_stream(sender, stream):
# Or it is private, but your are subscribed
pass
elif sender.is_api_super_user or (forwarder_user_profile is not None and
forwarder_user_profile.is_api_super_user):
# Or this request is being done on behalf of a super user
pass
elif sender.is_bot and subscribed_to_stream(sender.bot_owner, stream):
# Or you're a bot and your owner is subscribed.
pass
else:
# All other cases are an error.
raise JsonableError(_("Not authorized to send to stream '%s'") % (stream.name,))
elif message_type_name == 'private':
mirror_message = client and client.name in ["zephyr_mirror", "irc_mirror", "jabber_mirror", "JabberMirror"]
not_forged_mirror_message = mirror_message and not forged
try:
recipient = recipient_for_emails(message_to, not_forged_mirror_message,
forwarder_user_profile, sender)
except ValidationError as e:
assert isinstance(e.messages[0], six.string_types)
raise JsonableError(e.messages[0])
else:
raise JsonableError(_("Invalid message type"))
message = Message()
message.sender = sender
message.content = message_content
message.recipient = recipient
if message_type_name == 'stream':
message.subject = subject
if forged and forged_timestamp is not None:
# Forged messages come with a timestamp
message.pub_date = timestamp_to_datetime(forged_timestamp)
else:
message.pub_date = timezone.now()
message.sending_client = client
# We render messages later in the process.
assert message.rendered_content is None
if client.name == "zephyr_mirror":
id = already_sent_mirrored_message_id(message)
if id is not None:
return {'message': id}
return {'message': message, 'stream': stream, 'local_id': local_id,
'sender_queue_id': sender_queue_id, 'realm': realm}
def internal_prep_message(realm, sender_email, recipient_type_name, recipients,
subject, content):
# type: (Realm, Text, str, Text, Text, Text) -> Optional[Dict[str, Any]]
"""
Create a message object and checks it, but doesn't send it or save it to the database.
The internal function that calls this can therefore batch send a bunch of created
messages together as one database query.
Call do_send_messages with a list of the return values of this method.
"""
if len(content) > MAX_MESSAGE_LENGTH:
content = content[0:3900] + "\n\n[message was too long and has been truncated]"
sender = get_user_profile_by_email(sender_email)
if realm is None:
raise RuntimeError("None is not a valid realm for internal_prep_message!")
parsed_recipients = extract_recipients(recipients)
if recipient_type_name == "stream":
stream, _ = create_stream_if_needed(realm, parsed_recipients[0])
try:
return check_message(sender, get_client("Internal"), recipient_type_name,
parsed_recipients, subject, content, realm=realm)
except JsonableError as e:
logging.error("Error queueing internal message by %s: %s" % (sender_email, str(e)))
return None
def internal_send_message(realm, sender_email, recipient_type_name, recipients,
subject, content):
# type: (Realm, Text, str, Text, Text, Text) -> None
msg = internal_prep_message(realm, sender_email, recipient_type_name, recipients,
subject, content)
# internal_prep_message encountered an error
if msg is None:
return
do_send_messages([msg])
def pick_color(user_profile):
# type: (UserProfile) -> Text
subs = Subscription.objects.filter(user_profile=user_profile,
active=True,
recipient__type=Recipient.STREAM)
return pick_color_helper(user_profile, subs)
def pick_color_helper(user_profile, subs):
# type: (UserProfile, Iterable[Subscription]) -> Text
# These colors are shared with the palette in subs.js.
used_colors = [sub.color for sub in subs if sub.active]
available_colors = [s for s in STREAM_ASSIGNMENT_COLORS if s not in used_colors]
if available_colors:
return available_colors[0]
else:
return STREAM_ASSIGNMENT_COLORS[len(used_colors) % len(STREAM_ASSIGNMENT_COLORS)]
def validate_user_access_to_subscribers(user_profile, stream):
# type: (Optional[UserProfile], Stream) -> None
""" Validates whether the user can view the subscribers of a stream. Raises a JsonableError if:
* The user and the stream are in different realms
* The realm is MIT and the stream is not invite only.
* The stream is invite only, requesting_user is passed, and that user
does not subscribe to the stream.
"""
validate_user_access_to_subscribers_helper(
user_profile,
{"realm__domain": stream.realm.domain,
"realm_id": stream.realm_id,
"invite_only": stream.invite_only},
# We use a lambda here so that we only compute whether the
# user is subscribed if we have to
lambda: subscribed_to_stream(user_profile, stream))
def validate_user_access_to_subscribers_helper(user_profile, stream_dict, check_user_subscribed):
# type: (Optional[UserProfile], Mapping[str, Any], Callable[[], bool]) -> None
""" Helper for validate_user_access_to_subscribers that doesn't require a full stream object
* check_user_subscribed is a function that when called with no
arguments, will report whether the user is subscribed to the stream
"""
if user_profile is None:
raise ValidationError("Missing user to validate access for")
if user_profile.realm_id != stream_dict["realm_id"]:
raise ValidationError("Requesting user not in given realm")
if user_profile.realm.is_zephyr_mirror_realm and not stream_dict["invite_only"]:
raise JsonableError(_("You cannot get subscribers for public streams in this realm"))
if (stream_dict["invite_only"] and not check_user_subscribed()):
raise JsonableError(_("Unable to retrieve subscribers for invite-only stream"))
# sub_dict is a dictionary mapping stream_id => whether the user is subscribed to that stream
def bulk_get_subscriber_user_ids(stream_dicts, user_profile, sub_dict):
# type: (Iterable[Mapping[str, Any]], UserProfile, Mapping[int, bool]) -> Dict[int, List[int]]
target_stream_dicts = []
for stream_dict in stream_dicts:
try:
validate_user_access_to_subscribers_helper(user_profile, stream_dict,
lambda: sub_dict[stream_dict["id"]])
except JsonableError:
continue
target_stream_dicts.append(stream_dict)
subscriptions = Subscription.objects.select_related("recipient").filter(
recipient__type=Recipient.STREAM,
recipient__type_id__in=[stream["id"] for stream in target_stream_dicts],
user_profile__is_active=True,
active=True).values("user_profile_id", "recipient__type_id")
result = dict((stream["id"], []) for stream in stream_dicts) # type: Dict[int, List[int]]
for sub in subscriptions:
result[sub["recipient__type_id"]].append(sub["user_profile_id"])
return result
def get_subscribers_query(stream, requesting_user):
# type: (Stream, UserProfile) -> QuerySet
# TODO: Make a generic stub for QuerySet
""" Build a query to get the subscribers list for a stream, raising a JsonableError if:
'realm' is optional in stream.
The caller can refine this query with select_related(), values(), etc. depending
on whether it wants objects or just certain fields
"""
validate_user_access_to_subscribers(requesting_user, stream)
# Note that non-active users may still have "active" subscriptions, because we
# want to be able to easily reactivate them with their old subscriptions. This
# is why the query here has to look at the UserProfile.is_active flag.
subscriptions = Subscription.objects.filter(recipient__type=Recipient.STREAM,
recipient__type_id=stream.id,
user_profile__is_active=True,
active=True)
return subscriptions
def get_subscribers(stream, requesting_user=None):
# type: (Stream, Optional[UserProfile]) -> List[UserProfile]
subscriptions = get_subscribers_query(stream, requesting_user).select_related()
return [subscription.user_profile for subscription in subscriptions]
def get_subscriber_emails(stream, requesting_user=None):
# type: (Stream, Optional[UserProfile]) -> List[Text]
subscriptions_query = get_subscribers_query(stream, requesting_user)
subscriptions = subscriptions_query.values('user_profile__email')
return [subscription['user_profile__email'] for subscription in subscriptions]
def maybe_get_subscriber_emails(stream, user_profile):
# type: (Stream, UserProfile) -> List[Text]
""" Alternate version of get_subscriber_emails that takes a Stream object only
(not a name), and simply returns an empty list if unable to get a real
subscriber list (because we're on the MIT realm). """
try:
subscribers = get_subscriber_emails(stream, requesting_user=user_profile)
except JsonableError:
subscribers = []
return subscribers
def notify_subscriptions_added(user_profile, sub_pairs, stream_emails, no_log=False):
# type: (UserProfile, Iterable[Tuple[Subscription, Stream]], Callable[[Stream], List[Text]], bool) -> None
if not no_log:
log_event({'type': 'subscription_added',
'user': user_profile.email,
'names': [stream.name for sub, stream in sub_pairs],
'domain': user_profile.realm.domain})
# Send a notification to the user who subscribed.
payload = [dict(name=stream.name,
stream_id=stream.id,
in_home_view=subscription.in_home_view,
invite_only=stream.invite_only,
color=subscription.color,
email_address=encode_email_address(stream),
desktop_notifications=subscription.desktop_notifications,
audible_notifications=subscription.audible_notifications,
description=stream.description,
pin_to_top=subscription.pin_to_top,
subscribers=stream_emails(stream))
for (subscription, stream) in sub_pairs]
event = dict(type="subscription", op="add",
subscriptions=payload)
send_event(event, [user_profile.id])
def get_peer_user_ids_for_stream_change(stream, altered_users, subscribed_users):
# type: (Stream, Iterable[UserProfile], Iterable[UserProfile]) -> Set[int]
'''
altered_users is a list of users that we are adding/removing
subscribed_users is the list of already subscribed users
Based on stream policy, we notify the correct bystanders, while
not notifying altered_users (who get subscribers via another event)
'''
altered_user_ids = [user.id for user in altered_users]
if stream.invite_only:
# PRIVATE STREAMS
all_subscribed_ids = [user.id for user in subscribed_users]
return set(all_subscribed_ids) - set(altered_user_ids)
else:
# PUBLIC STREAMS
# We now do "peer_add" or "peer_remove" events even for streams
# users were never subscribed to, in order for the neversubscribed
# structure to stay up-to-date.
return set(active_user_ids(stream.realm)) - set(altered_user_ids)
def query_all_subs_by_stream(streams):
# type: (Iterable[Stream]) -> Dict[int, List[UserProfile]]
all_subs = Subscription.objects.filter(recipient__type=Recipient.STREAM,
recipient__type_id__in=[stream.id for stream in streams],
user_profile__is_active=True,
active=True).select_related('recipient', 'user_profile')
all_subs_by_stream = defaultdict(list) # type: Dict[int, List[UserProfile]]
for sub in all_subs:
all_subs_by_stream[sub.recipient.type_id].append(sub.user_profile)
return all_subs_by_stream
def bulk_add_subscriptions(streams, users):
# type: (Iterable[Stream], Iterable[UserProfile]) -> Tuple[List[Tuple[UserProfile, Stream]], List[Tuple[UserProfile, Stream]]]
recipients_map = bulk_get_recipients(Recipient.STREAM, [stream.id for stream in streams]) # type: Mapping[int, Recipient]
recipients = [recipient.id for recipient in recipients_map.values()] # type: List[int]
stream_map = {} # type: Dict[int, Stream]
for stream in streams:
stream_map[recipients_map[stream.id].id] = stream
subs_by_user = defaultdict(list) # type: Dict[int, List[Subscription]]
all_subs_query = Subscription.objects.select_related("user_profile")
for sub in all_subs_query.filter(user_profile__in=users,
recipient__type=Recipient.STREAM):
subs_by_user[sub.user_profile_id].append(sub)
already_subscribed = [] # type: List[Tuple[UserProfile, Stream]]
subs_to_activate = [] # type: List[Tuple[Subscription, Stream]]
new_subs = [] # type: List[Tuple[UserProfile, int, Stream]]
for user_profile in users:
needs_new_sub = set(recipients) # type: Set[int]
for sub in subs_by_user[user_profile.id]:
if sub.recipient_id in needs_new_sub:
needs_new_sub.remove(sub.recipient_id)
if sub.active:
already_subscribed.append((user_profile, stream_map[sub.recipient_id]))
else:
subs_to_activate.append((sub, stream_map[sub.recipient_id]))
# Mark the sub as active, without saving, so that
# pick_color will consider this to be an active
# subscription when picking colors
sub.active = True
for recipient_id in needs_new_sub:
new_subs.append((user_profile, recipient_id, stream_map[recipient_id]))
subs_to_add = [] # type: List[Tuple[Subscription, Stream]]
for (user_profile, recipient_id, stream) in new_subs:
color = pick_color_helper(user_profile, subs_by_user[user_profile.id])
sub_to_add = Subscription(user_profile=user_profile, active=True,
color=color, recipient_id=recipient_id,
desktop_notifications=user_profile.enable_stream_desktop_notifications,
audible_notifications=user_profile.enable_stream_sounds)
subs_by_user[user_profile.id].append(sub_to_add)
subs_to_add.append((sub_to_add, stream))
# TODO: XXX: This transaction really needs to be done at the serializeable
# transaction isolation level.
with transaction.atomic():
occupied_streams_before = list(get_occupied_streams(user_profile.realm))
Subscription.objects.bulk_create([sub for (sub, stream) in subs_to_add])
Subscription.objects.filter(id__in=[sub.id for (sub, stream) in subs_to_activate]).update(active=True)
occupied_streams_after = list(get_occupied_streams(user_profile.realm))
new_occupied_streams = [stream for stream in
set(occupied_streams_after) - set(occupied_streams_before)
if not stream.invite_only]
if new_occupied_streams:
event = dict(type="stream", op="occupy",
streams=[stream.to_dict()
for stream in new_occupied_streams])
send_event(event, active_user_ids(user_profile.realm))
# Notify all existing users on streams that users have joined
# First, get all users subscribed to the streams that we care about
# We fetch all subscription information upfront, as it's used throughout
# the following code and we want to minize DB queries
all_subs_by_stream = query_all_subs_by_stream(streams=streams)
def fetch_stream_subscriber_emails(stream):
# type: (Stream) -> List[Text]
if stream.realm.is_zephyr_mirror_realm and not stream.invite_only:
return []
users = all_subs_by_stream[stream.id]
return [u.email for u in users]
sub_tuples_by_user = defaultdict(list) # type: Dict[int, List[Tuple[Subscription, Stream]]]
new_streams = set() # type: Set[Tuple[int, int]]
for (sub, stream) in subs_to_add + subs_to_activate:
sub_tuples_by_user[sub.user_profile.id].append((sub, stream))
new_streams.add((sub.user_profile.id, stream.id))
# We now send several types of events to notify browsers. The
# first batch is notifications to users on invite-only streams
# that the stream exists.
for stream in streams:
new_users = [user for user in users if (user.id, stream.id) in new_streams]
# Users newly added to invite-only streams need a `create`
# notification, since they didn't have the invite-only stream
# in their browser yet.
if stream.invite_only:
event = dict(type="stream", op="create",
streams=[stream.to_dict()])
send_event(event, [user.id for user in new_users])
# The second batch is events for the users themselves that they
# were subscribed to the new streams.
for user_profile in users:
if len(sub_tuples_by_user[user_profile.id]) == 0:
continue
sub_pairs = sub_tuples_by_user[user_profile.id]
notify_subscriptions_added(user_profile, sub_pairs, fetch_stream_subscriber_emails)
# The second batch is events for other users who are tracking the
# subscribers lists of streams in their browser; everyone for
# public streams and only existing subscribers for private streams.
for stream in streams:
if stream.realm.is_zephyr_mirror_realm and not stream.invite_only:
continue
new_users = [user for user in users if (user.id, stream.id) in new_streams]
peer_user_ids = get_peer_user_ids_for_stream_change(
stream=stream,
altered_users=new_users,
subscribed_users=all_subs_by_stream[stream.id]
)
if peer_user_ids:
for added_user in new_users:
event = dict(type="subscription", op="peer_add",
subscriptions=[stream.name],
user_id=added_user.id)
send_event(event, peer_user_ids)
return ([(user_profile, stream) for (user_profile, recipient_id, stream) in new_subs] +
[(sub.user_profile, stream) for (sub, stream) in subs_to_activate],
already_subscribed)
def notify_subscriptions_removed(user_profile, streams, no_log=False):
# type: (UserProfile, Iterable[Stream], bool) -> None
if not no_log:
log_event({'type': 'subscription_removed',
'user': user_profile.email,
'names': [stream.name for stream in streams],
'domain': user_profile.realm.domain})
payload = [dict(name=stream.name, stream_id=stream.id) for stream in streams]
event = dict(type="subscription", op="remove",
subscriptions=payload)
send_event(event, [user_profile.id])
def bulk_remove_subscriptions(users, streams):
# type: (Iterable[UserProfile], Iterable[Stream]) -> Tuple[List[Tuple[UserProfile, Stream]], List[Tuple[UserProfile, Stream]]]
recipients_map = bulk_get_recipients(Recipient.STREAM,
[stream.id for stream in streams]) # type: Mapping[int, Recipient]
stream_map = {} # type: Dict[int, Stream]
for stream in streams:
stream_map[recipients_map[stream.id].id] = stream
subs_by_user = dict((user_profile.id, []) for user_profile in users) # type: Dict[int, List[Subscription]]
for sub in Subscription.objects.select_related("user_profile").filter(user_profile__in=users,
recipient__in=list(recipients_map.values()),
active=True):
subs_by_user[sub.user_profile_id].append(sub)
subs_to_deactivate = [] # type: List[Tuple[Subscription, Stream]]
not_subscribed = [] # type: List[Tuple[UserProfile, Stream]]
for user_profile in users:
recipients_to_unsub = set([recipient.id for recipient in recipients_map.values()])
for sub in subs_by_user[user_profile.id]:
recipients_to_unsub.remove(sub.recipient_id)
subs_to_deactivate.append((sub, stream_map[sub.recipient_id]))
for recipient_id in recipients_to_unsub:
not_subscribed.append((user_profile, stream_map[recipient_id]))
# TODO: XXX: This transaction really needs to be done at the serializeable
# transaction isolation level.
with transaction.atomic():
occupied_streams_before = list(get_occupied_streams(user_profile.realm))
Subscription.objects.filter(id__in=[sub.id for (sub, stream_name) in
subs_to_deactivate]).update(active=False)
occupied_streams_after = list(get_occupied_streams(user_profile.realm))
new_vacant_streams = [stream for stream in
set(occupied_streams_before) - set(occupied_streams_after)
if not stream.invite_only]
if new_vacant_streams:
event = dict(type="stream", op="vacate",
streams=[stream.to_dict()
for stream in new_vacant_streams])
send_event(event, active_user_ids(user_profile.realm))
altered_user_dict = defaultdict(list) # type: Dict[int, List[UserProfile]]
streams_by_user = defaultdict(list) # type: Dict[int, List[Stream]]
for (sub, stream) in subs_to_deactivate:
streams_by_user[sub.user_profile_id].append(stream)
altered_user_dict[stream.id].append(sub.user_profile)
for user_profile in users:
if len(streams_by_user[user_profile.id]) == 0:
continue
notify_subscriptions_removed(user_profile, streams_by_user[user_profile.id])
all_subs_by_stream = query_all_subs_by_stream(streams=streams)
for stream in streams:
if stream.realm.is_zephyr_mirror_realm and not stream.invite_only:
continue
altered_users = altered_user_dict[stream.id]
peer_user_ids = get_peer_user_ids_for_stream_change(
stream=stream,
altered_users=altered_users,
subscribed_users=all_subs_by_stream[stream.id]
)
if peer_user_ids:
for removed_user in altered_users:
event = dict(type="subscription",
op="peer_remove",
subscriptions=[stream.name],
user_id=removed_user.id)
send_event(event, peer_user_ids)
return ([(sub.user_profile, stream) for (sub, stream) in subs_to_deactivate],
not_subscribed)
def log_subscription_property_change(user_email, stream_name, property, value):
# type: (Text, Text, Text, Any) -> None
event = {'type': 'subscription_property',
'property': property,
'user': user_email,
'stream_name': stream_name,
'value': value}
log_event(event)
def do_change_subscription_property(user_profile, sub, stream_name,
property_name, value):
# type: (UserProfile, Subscription, Text, Text, Any) -> None
setattr(sub, property_name, value)
sub.save(update_fields=[property_name])
log_subscription_property_change(user_profile.email, stream_name,
property_name, value)
event = dict(type="subscription",
op="update",
email=user_profile.email,
property=property_name,
value=value,
name=stream_name)
send_event(event, [user_profile.id])
def do_activate_user(user_profile, log=True, join_date=timezone.now()):
# type: (UserProfile, bool, datetime.datetime) -> None
user_profile.is_active = True
user_profile.is_mirror_dummy = False
user_profile.set_unusable_password()
user_profile.date_joined = join_date
user_profile.tos_version = settings.TOS_VERSION
user_profile.save(update_fields=["is_active", "date_joined", "password",
"is_mirror_dummy", "tos_version"])
if log:
domain = user_profile.realm.domain
log_event({'type': 'user_activated',
'user': user_profile.email,
'domain': domain})
notify_created_user(user_profile)
def do_reactivate_user(user_profile):
# type: (UserProfile) -> None
# Unlike do_activate_user, this is meant for re-activating existing users,
# so it doesn't reset their password, etc.
user_profile.is_active = True
user_profile.save(update_fields=["is_active"])
domain = user_profile.realm.domain
log_event({'type': 'user_reactivated',
'user': user_profile.email,
'domain': domain})
notify_created_user(user_profile)
if user_profile.is_bot:
notify_created_bot(user_profile)
def do_change_password(user_profile, password, log=True, commit=True,
hashed_password=False):
# type: (UserProfile, Text, bool, bool, bool) -> None
if hashed_password:
# This is a hashed password, not the password itself.
user_profile.set_password(password)
else:
user_profile.set_password(password)
if commit:
user_profile.save(update_fields=["password"])
if log:
log_event({'type': 'user_change_password',
'user': user_profile.email,
'pwhash': user_profile.password})
def do_change_full_name(user_profile, full_name, log=True):
# type: (UserProfile, Text, bool) -> None
user_profile.full_name = full_name
user_profile.save(update_fields=["full_name"])
if log:
log_event({'type': 'user_change_full_name',
'user': user_profile.email,
'full_name': full_name})
payload = dict(email=user_profile.email,
user_id=user_profile.id,
full_name=user_profile.full_name)
send_event(dict(type='realm_user', op='update', person=payload),
active_user_ids(user_profile.realm))
if user_profile.is_bot:
send_event(dict(type='realm_bot', op='update', bot=payload),
bot_owner_userids(user_profile))
def do_change_bot_owner(user_profile, bot_owner, log=True):
# type: (UserProfile, UserProfile, bool) -> None
user_profile.bot_owner = bot_owner
user_profile.save()
if log:
log_event({'type': 'user_change_owner',
'user': user_profile.email,
'owner': user_profile.bot_owner.email})
send_event(dict(type='realm_bot',
op='update',
bot=dict(email=user_profile.email,
user_id=user_profile.id,
owner_id=user_profile.bot_owner.id,
)),
bot_owner_userids(user_profile))
def do_change_tos_version(user_profile, tos_version, log=True):
# type: (UserProfile, Text, bool) -> None
user_profile.tos_version = tos_version
user_profile.save(update_fields=["tos_version"])
if log:
log_event({'type': 'user_change_tos_version',
'user': user_profile.email,
'tos_version': tos_version})
def do_regenerate_api_key(user_profile, log=True):
# type: (UserProfile, bool) -> None
user_profile.api_key = random_api_key()
user_profile.save(update_fields=["api_key"])
if log:
log_event({'type': 'user_change_api_key',
'user': user_profile.email})
if user_profile.is_bot:
send_event(dict(type='realm_bot',
op='update',
bot=dict(email=user_profile.email,
user_id=user_profile.id,
api_key=user_profile.api_key,
)),
bot_owner_userids(user_profile))
def do_change_avatar_fields(user_profile, avatar_source, log=True):
# type: (UserProfile, Text, bool) -> None
user_profile.avatar_source = avatar_source
user_profile.avatar_version += 1
user_profile.save(update_fields=["avatar_source", "avatar_version"])
if log:
log_event({'type': 'user_change_avatar_source',
'user': user_profile.email,
'avatar_source': avatar_source})
if user_profile.is_bot:
send_event(dict(type='realm_bot',
op='update',
bot=dict(email=user_profile.email,
user_id=user_profile.id,
avatar_url=avatar_url(user_profile),
)),
bot_owner_userids(user_profile))
payload = dict(
email=user_profile.email,
avatar_url=avatar_url(user_profile),
user_id=user_profile.id
)
send_event(dict(type='realm_user',
op='update',
person=payload),
active_user_ids(user_profile.realm))
def do_change_icon_source(realm, icon_source, log=True):
# type: (Realm, Text, bool) -> None
realm.icon_source = icon_source
realm.icon_version += 1
realm.save(update_fields=["icon_source", "icon_version"])
if log:
log_event({'type': 'realm_change_icon',
'realm': realm.domain,
'icon_source': icon_source})
send_event(dict(type='realm',
op='update_dict',
property="icon",
data=dict(icon_source=realm.icon_source,
icon_url=realm_icon_url(realm))),
active_user_ids(realm))
def _default_stream_permision_check(user_profile, stream):
# type: (UserProfile, Optional[Stream]) -> None
# Any user can have a None default stream
if stream is not None:
if user_profile.is_bot:
user = user_profile.bot_owner
else:
user = user_profile
if stream.invite_only and not subscribed_to_stream(user, stream):
raise JsonableError(_('Insufficient permission'))
def do_change_default_sending_stream(user_profile, stream, log=True):
# type: (UserProfile, Optional[Stream], bool) -> None
_default_stream_permision_check(user_profile, stream)
user_profile.default_sending_stream = stream
user_profile.save(update_fields=['default_sending_stream'])
if log:
log_event({'type': 'user_change_default_sending_stream',
'user': user_profile.email,
'stream': str(stream)})
if user_profile.is_bot:
if stream:
stream_name = stream.name # type: Optional[Text]
else:
stream_name = None
send_event(dict(type='realm_bot',
op='update',
bot=dict(email=user_profile.email,
user_id=user_profile.id,
default_sending_stream=stream_name,
)),
bot_owner_userids(user_profile))
def do_change_default_events_register_stream(user_profile, stream, log=True):
# type: (UserProfile, Optional[Stream], bool) -> None
_default_stream_permision_check(user_profile, stream)
user_profile.default_events_register_stream = stream
user_profile.save(update_fields=['default_events_register_stream'])
if log:
log_event({'type': 'user_change_default_events_register_stream',
'user': user_profile.email,
'stream': str(stream)})
if user_profile.is_bot:
if stream:
stream_name = stream.name # type: Optional[Text]
else:
stream_name = None
send_event(dict(type='realm_bot',
op='update',
bot=dict(email=user_profile.email,
user_id=user_profile.id,
default_events_register_stream=stream_name,
)),
bot_owner_userids(user_profile))
def do_change_default_all_public_streams(user_profile, value, log=True):
# type: (UserProfile, bool, bool) -> None
user_profile.default_all_public_streams = value
user_profile.save(update_fields=['default_all_public_streams'])
if log:
log_event({'type': 'user_change_default_all_public_streams',
'user': user_profile.email,
'value': str(value)})
if user_profile.is_bot:
send_event(dict(type='realm_bot',
op='update',
bot=dict(email=user_profile.email,
user_id=user_profile.id,
default_all_public_streams=user_profile.default_all_public_streams,
)),
bot_owner_userids(user_profile))
def do_change_is_admin(user_profile, value, permission='administer'):
# type: (UserProfile, bool, str) -> None
if permission == "administer":
user_profile.is_realm_admin = value
user_profile.save(update_fields=["is_realm_admin"])
elif permission == "api_super_user":
user_profile.is_api_super_user = value
user_profile.save(update_fields=["is_api_super_user"])
else:
raise Exception("Unknown permission")
if permission == 'administer':
event = dict(type="realm_user", op="update",
person=dict(email=user_profile.email,
user_id=user_profile.id,
is_admin=value))
send_event(event, active_user_ids(user_profile.realm))
def do_change_bot_type(user_profile, value):
# type: (UserProfile, int) -> None
user_profile.bot_type = value
user_profile.save(update_fields=["bot_type"])
def do_change_stream_invite_only(stream, invite_only):
# type: (Stream, bool) -> None
stream.invite_only = invite_only
stream.save(update_fields=['invite_only'])
def do_rename_stream(stream, new_name, log=True):
# type: (Stream, Text, bool) -> Dict[str, Text]
old_name = stream.name
stream.name = new_name
stream.save(update_fields=["name"])
if log:
log_event({'type': 'stream_name_change',
'domain': stream.realm.domain,
'new_name': new_name})
recipient = get_recipient(Recipient.STREAM, stream.id)
messages = Message.objects.filter(recipient=recipient).only("id")
# Update the display recipient and stream, which are easy single
# items to set.
old_cache_key = get_stream_cache_key(old_name, stream.realm)
new_cache_key = get_stream_cache_key(stream.name, stream.realm)
if old_cache_key != new_cache_key:
cache_delete(old_cache_key)
cache_set(new_cache_key, stream)
cache_set(display_recipient_cache_key(recipient.id), stream.name)
# Delete cache entries for everything else, which is cheaper and
# clearer than trying to set them. display_recipient is the out of
# date field in all cases.
cache_delete_many(
to_dict_cache_key_id(message.id, True) for message in messages)
cache_delete_many(
to_dict_cache_key_id(message.id, False) for message in messages)
new_email = encode_email_address(stream)
# We will tell our users to essentially
# update stream.name = new_name where name = old_name
# and update stream.email = new_email where name = old_name.
# We could optimize this by trying to send one message, but the
# client code really wants one property update at a time, and
# updating stream names is a pretty infrequent operation.
# More importantly, we want to key these updates by id, not name,
# since id is the immutable primary key, and obviously name is not.
data_updates = [
['email_address', new_email],
['name', new_name],
]
for property, value in data_updates:
event = dict(
op="update",
type="stream",
property=property,
value=value,
name=old_name
)
send_event(event, can_access_stream_user_ids(stream))
# Even though the token doesn't change, the web client needs to update the
# email forwarding address to display the correctly-escaped new name.
return {"email_address": new_email}
def do_change_stream_description(stream, new_description):
# type: (Stream, Text) -> None
stream.description = new_description
stream.save(update_fields=['description'])
event = dict(type='stream', op='update',
property='description', name=stream.name,
value=new_description)
send_event(event, can_access_stream_user_ids(stream))
def do_create_realm(string_id, name, restricted_to_domain=None,
invite_required=None, org_type=None):
# type: (Text, Text, Optional[bool], Optional[bool], Optional[int]) -> Tuple[Realm, bool]
realm = get_realm(string_id)
created = not realm
if created:
kwargs = {} # type: Dict[str, Any]
if restricted_to_domain is not None:
kwargs['restricted_to_domain'] = restricted_to_domain
if invite_required is not None:
kwargs['invite_required'] = invite_required
if org_type is not None:
kwargs['org_type'] = org_type
realm = Realm(string_id=string_id, name=name,
domain=string_id + '@acme.com', **kwargs)
realm.save()
# Create stream once Realm object has been saved
notifications_stream, _ = create_stream_if_needed(realm, Realm.DEFAULT_NOTIFICATION_STREAM_NAME)
realm.notifications_stream = notifications_stream
realm.save(update_fields=['notifications_stream'])
# Include a welcome message in this notifications stream
product_name = "Zulip"
content = """Hello, and welcome to %s!
This is a message on stream `%s` with the topic `welcome`. We'll use this stream for
system-generated notifications.""" % (product_name, notifications_stream.name,)
msg = internal_prep_message(realm, settings.WELCOME_BOT, 'stream',
notifications_stream.name, "welcome",
content)
do_send_messages([msg])
# Log the event
log_event({"type": "realm_created",
"string_id": string_id,
"restricted_to_domain": restricted_to_domain,
"invite_required": invite_required,
"org_type": org_type})
# Send a notification to the admin realm (if configured)
if settings.NEW_USER_BOT is not None:
signup_message = "Signups enabled"
admin_realm = get_user_profile_by_email(settings.NEW_USER_BOT).realm
internal_send_message(admin_realm, settings.NEW_USER_BOT, "stream",
"signups", string_id, signup_message)
return (realm, created)
def do_change_enable_stream_desktop_notifications(user_profile,
enable_stream_desktop_notifications,
log=True):
# type: (UserProfile, bool, bool) -> None
user_profile.enable_stream_desktop_notifications = enable_stream_desktop_notifications
user_profile.save(update_fields=["enable_stream_desktop_notifications"])
event = {'type': 'update_global_notifications',
'user': user_profile.email,
'notification_name': 'enable_stream_desktop_notifications',
'setting': enable_stream_desktop_notifications}
if log:
log_event(event)
send_event(event, [user_profile.id])
def do_change_enable_stream_sounds(user_profile, enable_stream_sounds, log=True):
# type: (UserProfile, bool, bool) -> None
user_profile.enable_stream_sounds = enable_stream_sounds
user_profile.save(update_fields=["enable_stream_sounds"])
event = {'type': 'update_global_notifications',
'user': user_profile.email,
'notification_name': 'enable_stream_sounds',
'setting': enable_stream_sounds}
if log:
log_event(event)
send_event(event, [user_profile.id])
def do_change_enable_desktop_notifications(user_profile, enable_desktop_notifications, log=True):
# type: (UserProfile, bool, bool) -> None
user_profile.enable_desktop_notifications = enable_desktop_notifications
user_profile.save(update_fields=["enable_desktop_notifications"])
event = {'type': 'update_global_notifications',
'user': user_profile.email,
'notification_name': 'enable_desktop_notifications',
'setting': enable_desktop_notifications}
if log:
log_event(event)
send_event(event, [user_profile.id])
def do_change_pm_content_in_desktop_notifications(user_profile,
pm_content_in_desktop_notifications, log=True):
# type: (UserProfile, bool, bool) -> None
user_profile.pm_content_in_desktop_notifications \
= pm_content_in_desktop_notifications
user_profile.save(update_fields=["pm_content_in_desktop_notifications"])
event = {'type': 'update_global_notifications',
'user': user_profile.email,
'notification_name': 'pm_content_in_desktop_notifications',
'setting': pm_content_in_desktop_notifications}
if log:
log_event(event)
send_event(event, [user_profile.id])
def do_change_enable_sounds(user_profile, enable_sounds, log=True):
# type: (UserProfile, bool, bool) -> None
user_profile.enable_sounds = enable_sounds
user_profile.save(update_fields=["enable_sounds"])
event = {'type': 'update_global_notifications',
'user': user_profile.email,
'notification_name': 'enable_sounds',
'setting': enable_sounds}
if log:
log_event(event)
send_event(event, [user_profile.id])
def do_change_enable_offline_email_notifications(user_profile, offline_email_notifications, log=True):
# type: (UserProfile, bool, bool) -> None
user_profile.enable_offline_email_notifications = offline_email_notifications
user_profile.save(update_fields=["enable_offline_email_notifications"])
event = {'type': 'update_global_notifications',
'user': user_profile.email,
'notification_name': 'enable_offline_email_notifications',
'setting': offline_email_notifications}
if log:
log_event(event)
send_event(event, [user_profile.id])
def do_change_enable_offline_push_notifications(user_profile, offline_push_notifications, log=True):
# type: (UserProfile, bool, bool) -> None
user_profile.enable_offline_push_notifications = offline_push_notifications
user_profile.save(update_fields=["enable_offline_push_notifications"])
event = {'type': 'update_global_notifications',
'user': user_profile.email,
'notification_name': 'enable_offline_push_notifications',
'setting': offline_push_notifications}
if log:
log_event(event)
send_event(event, [user_profile.id])
def do_change_enable_online_push_notifications(user_profile, enable_online_push_notifications, log=True):
# type: (UserProfile, bool, bool) -> None
user_profile.enable_online_push_notifications = enable_online_push_notifications
user_profile.save(update_fields=["enable_online_push_notifications"])
event = {'type': 'update_global_notifications',
'user': user_profile.email,
'notification_name': 'enable_online_push_notifications',
'setting': enable_online_push_notifications}
if log:
log_event(event)
send_event(event, [user_profile.id])
def do_change_enable_digest_emails(user_profile, enable_digest_emails, log=True):
# type: (UserProfile, bool, bool) -> None
user_profile.enable_digest_emails = enable_digest_emails
user_profile.save(update_fields=["enable_digest_emails"])
if not enable_digest_emails:
# Remove any digest emails that have been enqueued.
clear_followup_emails_queue(user_profile.email)
event = {'type': 'update_global_notifications',
'user': user_profile.email,
'notification_name': 'enable_digest_emails',
'setting': enable_digest_emails}
if log:
log_event(event)
send_event(event, [user_profile.id])
def do_change_autoscroll_forever(user_profile, autoscroll_forever, log=True):
# type: (UserProfile, bool, bool) -> None
user_profile.autoscroll_forever = autoscroll_forever
user_profile.save(update_fields=["autoscroll_forever"])
if log:
log_event({'type': 'autoscroll_forever',
'user': user_profile.email,
'autoscroll_forever': autoscroll_forever})
def do_change_enter_sends(user_profile, enter_sends):
# type: (UserProfile, bool) -> None
user_profile.enter_sends = enter_sends
user_profile.save(update_fields=["enter_sends"])
def do_change_default_desktop_notifications(user_profile, default_desktop_notifications):
# type: (UserProfile, bool) -> None
user_profile.default_desktop_notifications = default_desktop_notifications
user_profile.save(update_fields=["default_desktop_notifications"])
def do_change_twenty_four_hour_time(user_profile, setting_value, log=True):
# type: (UserProfile, bool, bool) -> None
user_profile.twenty_four_hour_time = setting_value
user_profile.save(update_fields=["twenty_four_hour_time"])
event = {'type': 'update_display_settings',
'user': user_profile.email,
'setting_name': 'twenty_four_hour_time',
'setting': setting_value}
if log:
log_event(event)
send_event(event, [user_profile.id])
def do_change_left_side_userlist(user_profile, setting_value, log=True):
# type: (UserProfile, bool, bool) -> None
user_profile.left_side_userlist = setting_value
user_profile.save(update_fields=["left_side_userlist"])
event = {'type': 'update_display_settings',
'user': user_profile.email,
'setting_name': 'left_side_userlist',
'setting': setting_value}
if log:
log_event(event)
send_event(event, [user_profile.id])
def do_change_default_language(user_profile, setting_value, log=True):
# type: (UserProfile, Text, bool) -> None
user_profile.default_language = setting_value
user_profile.save(update_fields=["default_language"])
event = {'type': 'update_display_settings',
'user': user_profile.email,
'setting_name': 'default_language',
'setting': setting_value}
if log:
log_event(event)
send_event(event, [user_profile.id])
def set_default_streams(realm, stream_dict):
# type: (Realm, Dict[Text, Dict[Text, Any]]) -> None
DefaultStream.objects.filter(realm=realm).delete()
stream_names = []
for name, options in stream_dict.items():
stream_names.append(name)
stream, _ = create_stream_if_needed(realm,
name,
invite_only = options["invite_only"],
stream_description = options["description"])
DefaultStream.objects.create(stream=stream, realm=realm)
# Always include the realm's default notifications streams, if it exists
if realm.notifications_stream is not None:
DefaultStream.objects.get_or_create(stream=realm.notifications_stream, realm=realm)
log_event({'type': 'default_streams',
'domain': realm.domain,
'streams': stream_names})
def notify_default_streams(realm):
# type: (Realm) -> None
event = dict(
type="default_streams",
default_streams=streams_to_dicts_sorted(get_default_streams_for_realm(realm))
)
send_event(event, active_user_ids(realm))
def do_add_default_stream(stream):
# type: (Stream) -> None
if not DefaultStream.objects.filter(realm=stream.realm, stream=stream).exists():
DefaultStream.objects.create(realm=stream.realm, stream=stream)
notify_default_streams(stream.realm)
def do_remove_default_stream(stream):
# type: (Stream) -> None
DefaultStream.objects.filter(realm=stream.realm, stream=stream).delete()
notify_default_streams(stream.realm)
def get_default_streams_for_realm(realm):
# type: (Realm) -> List[Stream]
return [default.stream for default in
DefaultStream.objects.select_related("stream", "stream__realm").filter(realm=realm)]
def get_default_subs(user_profile):
# type: (UserProfile) -> List[Stream]
# Right now default streams are realm-wide. This wrapper gives us flexibility
# to some day further customize how we set up default streams for new users.
return get_default_streams_for_realm(user_profile.realm)
# returns default streams in json serializeable format
def streams_to_dicts_sorted(streams):
# type: (List[Stream]) -> List[Dict[str, Any]]
return sorted([stream.to_dict() for stream in streams], key=lambda elt: elt["name"])
def do_update_user_activity_interval(user_profile, log_time):
# type: (UserProfile, datetime.datetime) -> None
effective_end = log_time + datetime.timedelta(minutes=15)
# This code isn't perfect, because with various races we might end
# up creating two overlapping intervals, but that shouldn't happen
# often, and can be corrected for in post-processing
try:
last = UserActivityInterval.objects.filter(user_profile=user_profile).order_by("-end")[0]
# There are two ways our intervals could overlap:
# (1) The start of the new interval could be inside the old interval
# (2) The end of the new interval could be inside the old interval
# In either case, we just extend the old interval to include the new interval.
if ((log_time <= last.end and log_time >= last.start) or
(effective_end <= last.end and effective_end >= last.start)):
last.end = max(last.end, effective_end)
last.start = min(last.start, log_time)
last.save(update_fields=["start", "end"])
return
except IndexError:
pass
# Otherwise, the intervals don't overlap, so we should make a new one
UserActivityInterval.objects.create(user_profile=user_profile, start=log_time,
end=effective_end)
@statsd_increment('user_activity')
def do_update_user_activity(user_profile, client, query, log_time):
# type: (UserProfile, Client, Text, datetime.datetime) -> None
(activity, created) = UserActivity.objects.get_or_create(
user_profile = user_profile,
client = client,
query = query,
defaults={'last_visit': log_time, 'count': 0})
activity.count += 1
activity.last_visit = log_time
activity.save(update_fields=["last_visit", "count"])
def send_presence_changed(user_profile, presence):
# type: (UserProfile, UserPresence) -> None
presence_dict = presence.to_dict()
event = dict(type="presence", email=user_profile.email,
server_timestamp=time.time(),
presence={presence_dict['client']: presence.to_dict()})
send_event(event, active_user_ids(user_profile.realm))
def consolidate_client(client):
# type: (Client) -> Client
# The web app reports a client as 'website'
# The desktop app reports a client as ZulipDesktop
# due to it setting a custom user agent. We want both
# to count as web users
# Alias ZulipDesktop to website
if client.name in ['ZulipDesktop']:
return get_client('website')
else:
return client
@statsd_increment('user_presence')
def do_update_user_presence(user_profile, client, log_time, status):
# type: (UserProfile, Client, datetime.datetime, int) -> None
client = consolidate_client(client)
(presence, created) = UserPresence.objects.get_or_create(
user_profile = user_profile,
client = client,
defaults = {'timestamp': log_time,
'status': status})
stale_status = (log_time - presence.timestamp) > datetime.timedelta(minutes=1, seconds=10)
was_idle = presence.status == UserPresence.IDLE
became_online = (status == UserPresence.ACTIVE) and (stale_status or was_idle)
# If an object was created, it has already been saved.
#
# We suppress changes from ACTIVE to IDLE before stale_status is reached;
# this protects us from the user having two clients open: one active, the
# other idle. Without this check, we would constantly toggle their status
# between the two states.
if not created and stale_status or was_idle or status == presence.status:
# The following block attempts to only update the "status"
# field in the event that it actually changed. This is
# important to avoid flushing the UserPresence cache when the
# data it would return to a client hasn't actually changed
# (see the UserPresence post_save hook for details).
presence.timestamp = log_time
update_fields = ["timestamp"]
if presence.status != status:
presence.status = status
update_fields.append("status")
presence.save(update_fields=update_fields)
if not user_profile.realm.is_zephyr_mirror_realm and (created or became_online):
# Push event to all users in the realm so they see the new user
# appear in the presence list immediately, or the newly online
# user without delay. Note that we won't send an update here for a
# timestamp update, because we rely on the browser to ping us every 50
# seconds for realm-wide status updates, and those updates should have
# recent timestamps, which means the browser won't think active users
# have gone idle. If we were more aggressive in this function about
# sending timestamp updates, we could eliminate the ping responses, but
# that's not a high priority for now, considering that most of our non-MIT
# realms are pretty small.
send_presence_changed(user_profile, presence)
def update_user_activity_interval(user_profile, log_time):
# type: (UserProfile, datetime.datetime) -> None
event = {'user_profile_id': user_profile.id,
'time': datetime_to_timestamp(log_time)}
queue_json_publish("user_activity_interval", event,
lambda e: do_update_user_activity_interval(user_profile, log_time))
def update_user_presence(user_profile, client, log_time, status,
new_user_input):
# type: (UserProfile, Client, datetime.datetime, int, bool) -> None
event = {'user_profile_id': user_profile.id,
'status': status,
'time': datetime_to_timestamp(log_time),
'client': client.name}
queue_json_publish("user_presence", event,
lambda e: do_update_user_presence(user_profile, client,
log_time, status))
if new_user_input:
update_user_activity_interval(user_profile, log_time)
def do_update_pointer(user_profile, pointer, update_flags=False):
# type: (UserProfile, int, bool) -> None
prev_pointer = user_profile.pointer
user_profile.pointer = pointer
user_profile.save(update_fields=["pointer"])
if update_flags:
# Until we handle the new read counts in the Android app
# natively, this is a shim that will mark as read any messages
# up until the pointer move
UserMessage.objects.filter(user_profile=user_profile,
message__id__gt=prev_pointer,
message__id__lte=pointer,
flags=~UserMessage.flags.read) \
.update(flags=F('flags').bitor(UserMessage.flags.read))
event = dict(type='pointer', pointer=pointer)
send_event(event, [user_profile.id])
def do_update_message_flags(user_profile, operation, flag, messages, all, stream_obj, topic_name):
# type: (UserProfile, Text, Text, Sequence[int], bool, Optional[Stream], Optional[Text]) -> int
flagattr = getattr(UserMessage.flags, flag)
if all:
log_statsd_event('bankruptcy')
msgs = UserMessage.objects.filter(user_profile=user_profile)
elif stream_obj is not None:
recipient = get_recipient(Recipient.STREAM, stream_obj.id)
if topic_name:
msgs = UserMessage.objects.filter(message__recipient=recipient,
user_profile=user_profile,
message__subject__iexact=topic_name)
else:
msgs = UserMessage.objects.filter(message__recipient=recipient, user_profile=user_profile)
else:
msgs = UserMessage.objects.filter(user_profile=user_profile,
message__id__in=messages)
# Hack to let you star any message
if msgs.count() == 0:
if not len(messages) == 1:
raise JsonableError(_("Invalid message(s)"))
if flag != "starred":
raise JsonableError(_("Invalid message(s)"))
# Validate that the user could have read the relevant message
message = access_message(user_profile, messages[0])[0]
# OK, this is a message that you legitimately have access
# to via narrowing to the stream it is on, even though you
# didn't actually receive it. So we create a historical,
# read UserMessage message row for you to star.
UserMessage.objects.create(user_profile=user_profile,
message=message,
flags=UserMessage.flags.historical | UserMessage.flags.read)
# The filter() statements below prevent postgres from doing a lot of
# unnecessary work, which is a big deal for users updating lots of
# flags (e.g. bankruptcy). This patch arose from seeing slow calls
# to POST /json/messages/flags in the logs. The filter() statements
# are kind of magical; they are actually just testing the one bit.
if operation == 'add':
msgs = msgs.filter(flags=~flagattr)
if stream_obj:
messages = list(msgs.values_list('message__id', flat=True))
count = msgs.update(flags=F('flags').bitor(flagattr))
elif operation == 'remove':
msgs = msgs.filter(flags=flagattr)
if stream_obj:
messages = list(msgs.values_list('message__id', flat=True))
count = msgs.update(flags=F('flags').bitand(~flagattr))
event = {'type': 'update_message_flags',
'operation': operation,
'flag': flag,
'messages': messages,
'all': all}
log_event(event)
send_event(event, [user_profile.id])
statsd.incr("flags.%s.%s" % (flag, operation), count)
return count
def subscribed_to_stream(user_profile, stream):
# type: (UserProfile, Stream) -> bool
try:
if Subscription.objects.get(user_profile=user_profile,
active=True,
recipient__type=Recipient.STREAM,
recipient__type_id=stream.id):
return True
return False
except Subscription.DoesNotExist:
return False
def truncate_content(content, max_length, truncation_message):
# type: (Text, int, Text) -> Text
if len(content) > max_length:
content = content[:max_length - len(truncation_message)] + truncation_message
return content
def truncate_body(body):
# type: (Text) -> Text
return truncate_content(body, MAX_MESSAGE_LENGTH, "...")
def truncate_topic(topic):
# type: (Text) -> Text
return truncate_content(topic, MAX_SUBJECT_LENGTH, "...")
def update_user_message_flags(message, ums):
# type: (Message, Iterable[UserMessage]) -> None
wildcard = message.mentions_wildcard
mentioned_ids = message.mentions_user_ids
ids_with_alert_words = message.user_ids_with_alert_words
changed_ums = set() # type: Set[UserMessage]
def update_flag(um, should_set, flag):
# type: (UserMessage, bool, int) -> None
if should_set:
if not (um.flags & flag):
um.flags |= flag
changed_ums.add(um)
else:
if (um.flags & flag):
um.flags &= ~flag
changed_ums.add(um)
for um in ums:
has_alert_word = um.user_profile_id in ids_with_alert_words
update_flag(um, has_alert_word, UserMessage.flags.has_alert_word)
mentioned = um.user_profile_id in mentioned_ids
update_flag(um, mentioned, UserMessage.flags.mentioned)
update_flag(um, wildcard, UserMessage.flags.wildcard_mentioned)
is_me_message = getattr(message, 'is_me_message', False)
update_flag(um, is_me_message, UserMessage.flags.is_me_message)
for um in changed_ums:
um.save(update_fields=['flags'])
def update_to_dict_cache(changed_messages):
# type: (List[Message]) -> List[int]
"""Updates the message as stored in the to_dict cache (for serving
messages)."""
items_for_remote_cache = {}
message_ids = []
for changed_message in changed_messages:
message_ids.append(changed_message.id)
items_for_remote_cache[to_dict_cache_key(changed_message, True)] = \
(MessageDict.to_dict_uncached(changed_message, apply_markdown=True),)
items_for_remote_cache[to_dict_cache_key(changed_message, False)] = \
(MessageDict.to_dict_uncached(changed_message, apply_markdown=False),)
cache_set_many(items_for_remote_cache)
return message_ids
# We use transaction.atomic to support select_for_update in the attachment codepath.
@transaction.atomic
def do_update_embedded_data(user_profile, message, content, rendered_content):
# type: (UserProfile, Message, Optional[Text], Optional[Text]) -> None
event = {
'type': 'update_message',
'sender': user_profile.email,
'message_id': message.id} # type: Dict[str, Any]
changed_messages = [message]
ums = UserMessage.objects.filter(message=message.id)
if content is not None:
update_user_message_flags(message, ums)
message.content = content
message.rendered_content = rendered_content
message.rendered_content_version = bugdown_version
event["content"] = content
event["rendered_content"] = rendered_content
log_event(event)
message.save(update_fields=["content", "rendered_content"])
event['message_ids'] = update_to_dict_cache(changed_messages)
def user_info(um):
# type: (UserMessage) -> Dict[str, Any]
return {
'id': um.user_profile_id,
'flags': um.flags_list()
}
send_event(event, list(map(user_info, ums)))
# We use transaction.atomic to support select_for_update in the attachment codepath.
@transaction.atomic
def do_update_message(user_profile, message, subject, propagate_mode, content, rendered_content):
# type: (UserProfile, Message, Optional[Text], str, Optional[Text], Optional[Text]) -> int
event = {'type': 'update_message',
# TODO: We probably want to remove the 'sender' field
# after confirming it isn't used by any consumers.
'sender': user_profile.email,
'user_id': user_profile.id,
'message_id': message.id} # type: Dict[str, Any]
edit_history_event = {
'user_id': user_profile.id,
} # type: Dict[str, Any]
changed_messages = [message]
# Set first_rendered_content to be the oldest version of the
# rendered content recorded; which is the current version if the
# content hasn't been edited before. Note that because one could
# have edited just the subject, not every edit history event
# contains a prev_rendered_content element.
first_rendered_content = message.rendered_content
if message.edit_history is not None:
edit_history = ujson.loads(message.edit_history)
for old_edit_history_event in edit_history:
if 'prev_rendered_content' in old_edit_history_event:
first_rendered_content = old_edit_history_event['prev_rendered_content']
ums = UserMessage.objects.filter(message=message.id)
if content is not None:
update_user_message_flags(message, ums)
# We are turning off diff highlighting everywhere until ticket #1532 is addressed.
if False:
# Don't highlight message edit diffs on prod
rendered_content = highlight_html_differences(first_rendered_content, rendered_content)
event['orig_content'] = message.content
event['orig_rendered_content'] = message.rendered_content
edit_history_event["prev_content"] = message.content
edit_history_event["prev_rendered_content"] = message.rendered_content
edit_history_event["prev_rendered_content_version"] = message.rendered_content_version
message.content = content
message.rendered_content = rendered_content
message.rendered_content_version = bugdown_version
event["content"] = content
event["rendered_content"] = rendered_content
event['prev_rendered_content_version'] = message.rendered_content_version
prev_content = edit_history_event['prev_content']
if Message.content_has_attachment(prev_content) or Message.content_has_attachment(message.content):
check_attachment_reference_change(prev_content, message)
if subject is not None:
orig_subject = message.topic_name()
subject = truncate_topic(subject)
event["orig_subject"] = orig_subject
event["propagate_mode"] = propagate_mode
message.subject = subject
event["stream_id"] = message.recipient.type_id
event["subject"] = subject
event['subject_links'] = bugdown.subject_links(message.sender.realm_id, subject)
edit_history_event["prev_subject"] = orig_subject
if propagate_mode in ["change_later", "change_all"]:
propagate_query = Q(recipient = message.recipient, subject = orig_subject)
# We only change messages up to 2 days in the past, to avoid hammering our
# DB by changing an unbounded amount of messages
if propagate_mode == 'change_all':
before_bound = timezone.now() - datetime.timedelta(days=2)
propagate_query = (propagate_query & ~Q(id = message.id) &
Q(pub_date__range=(before_bound, timezone.now())))
if propagate_mode == 'change_later':
propagate_query = propagate_query & Q(id__gt = message.id)
messages = Message.objects.filter(propagate_query).select_related()
# Evaluate the query before running the update
messages_list = list(messages)
messages.update(subject=subject)
for m in messages_list:
# The cached ORM object is not changed by messages.update()
# and the remote cache update requires the new value
m.subject = subject
changed_messages += messages_list
message.last_edit_time = timezone.now()
event['edit_timestamp'] = datetime_to_timestamp(message.last_edit_time)
edit_history_event['timestamp'] = event['edit_timestamp']
if message.edit_history is not None:
edit_history.insert(0, edit_history_event)
else:
edit_history = [edit_history_event]
message.edit_history = ujson.dumps(edit_history)
log_event(event)
message.save(update_fields=["subject", "content", "rendered_content",
"rendered_content_version", "last_edit_time",
"edit_history"])
event['message_ids'] = update_to_dict_cache(changed_messages)
def user_info(um):
# type: (UserMessage) -> Dict[str, Any]
return {
'id': um.user_profile_id,
'flags': um.flags_list()
}
send_event(event, list(map(user_info, ums)))
return len(changed_messages)
def encode_email_address(stream):
# type: (Stream) -> Text
return encode_email_address_helper(stream.name, stream.email_token)
def encode_email_address_helper(name, email_token):
# type: (Text, Text) -> Text
# Some deployments may not use the email gateway
if settings.EMAIL_GATEWAY_PATTERN == '':
return ''
# Given the fact that we have almost no restrictions on stream names and
# that what characters are allowed in e-mail addresses is complicated and
# dependent on context in the address, we opt for a very simple scheme:
#
# Only encode the stream name (leave the + and token alone). Encode
# everything that isn't alphanumeric plus _ as the percent-prefixed integer
# ordinal of that character, padded with zeroes to the maximum number of
# bytes of a UTF-8 encoded Unicode character.
encoded_name = re.sub("\W", lambda x: "%" + str(ord(x.group(0))).zfill(4), name)
encoded_token = "%s+%s" % (encoded_name, email_token)
return settings.EMAIL_GATEWAY_PATTERN % (encoded_token,)
def get_email_gateway_message_string_from_address(address):
# type: (Text) -> Optional[Text]
pattern_parts = [re.escape(part) for part in settings.EMAIL_GATEWAY_PATTERN.split('%s')]
if settings.EMAIL_GATEWAY_EXTRA_PATTERN_HACK:
# Accept mails delivered to any Zulip server
pattern_parts[-1] = settings.EMAIL_GATEWAY_EXTRA_PATTERN_HACK
match_email_re = re.compile("(.*?)".join(pattern_parts))
match = match_email_re.match(address)
if not match:
return None
msg_string = match.group(1)
return msg_string
def decode_email_address(email):
# type: (Text) -> Tuple[Text, Text]
# Perform the reverse of encode_email_address. Returns a tuple of (streamname, email_token)
msg_string = get_email_gateway_message_string_from_address(email)
if '.' in msg_string:
# Workaround for Google Groups and other programs that don't accept emails
# that have + signs in them (see Trac #2102)
encoded_stream_name, token = msg_string.split('.')
else:
encoded_stream_name, token = msg_string.split('+')
stream_name = re.sub("%\d{4}", lambda x: unichr(int(x.group(0)[1:])), encoded_stream_name)
return stream_name, token
# In general, it's better to avoid using .values() because it makes
# the code pretty ugly, but in this case, it has significant
# performance impact for loading / for users with large numbers of
# subscriptions, so it's worth optimizing.
def gather_subscriptions_helper(user_profile, include_subscribers=True):
# type: (UserProfile, bool) -> Tuple[List[Dict[str, Any]], List[Dict[str, Any]], List[Dict[str, Any]]]
sub_dicts = Subscription.objects.select_related("recipient").filter(
user_profile = user_profile,
recipient__type = Recipient.STREAM).values(
"recipient__type_id", "in_home_view", "color", "desktop_notifications",
"audible_notifications", "active", "pin_to_top")
stream_ids = set([sub["recipient__type_id"] for sub in sub_dicts])
all_streams = get_active_streams(user_profile.realm).select_related(
"realm").values("id", "name", "invite_only", "realm_id",
"realm__domain", "email_token", "description")
stream_dicts = [stream for stream in all_streams if stream['id'] in stream_ids]
stream_hash = {}
for stream in stream_dicts:
stream_hash[stream["id"]] = stream
all_streams_id = [stream["id"] for stream in all_streams]
subscribed = []
unsubscribed = []
never_subscribed = []
# Deactivated streams aren't in stream_hash.
streams = [stream_hash[sub["recipient__type_id"]] for sub in sub_dicts
if sub["recipient__type_id"] in stream_hash]
streams_subscribed_map = dict((sub["recipient__type_id"], sub["active"]) for sub in sub_dicts)
# Add never subscribed streams to streams_subscribed_map
streams_subscribed_map.update({stream['id']: False for stream in all_streams if stream not in streams})
if include_subscribers:
subscriber_map = bulk_get_subscriber_user_ids(all_streams, user_profile, streams_subscribed_map)
else:
# If we're not including subscribers, always return None,
# which the below code needs to check for anyway.
subscriber_map = defaultdict(lambda: None)
sub_unsub_stream_ids = set()
for sub in sub_dicts:
sub_unsub_stream_ids.add(sub["recipient__type_id"])
stream = stream_hash.get(sub["recipient__type_id"])
if not stream:
# This stream has been deactivated, don't include it.
continue
subscribers = subscriber_map[stream["id"]]
# Important: don't show the subscribers if the stream is invite only
# and this user isn't on it anymore.
if stream["invite_only"] and not sub["active"]:
subscribers = None
stream_dict = {'name': stream["name"],
'in_home_view': sub["in_home_view"],
'invite_only': stream["invite_only"],
'color': sub["color"],
'desktop_notifications': sub["desktop_notifications"],
'audible_notifications': sub["audible_notifications"],
'pin_to_top': sub["pin_to_top"],
'stream_id': stream["id"],
'description': stream["description"],
'email_address': encode_email_address_helper(stream["name"], stream["email_token"])}
if subscribers is not None:
stream_dict['subscribers'] = subscribers
if sub["active"]:
subscribed.append(stream_dict)
else:
unsubscribed.append(stream_dict)
all_streams_id_set = set(all_streams_id)
# Listing public streams are disabled for Zephyr mirroring realms.
if user_profile.realm.is_zephyr_mirror_realm:
never_subscribed_stream_ids = set() # type: Set[int]
else:
never_subscribed_stream_ids = all_streams_id_set - sub_unsub_stream_ids
never_subscribed_streams = [ns_stream_dict for ns_stream_dict in all_streams
if ns_stream_dict['id'] in never_subscribed_stream_ids]
for stream in never_subscribed_streams:
if not stream['invite_only']:
stream_dict = {'name': stream['name'],
'invite_only': stream['invite_only'],
'stream_id': stream['id'],
'description': stream['description']}
subscribers = subscriber_map[stream["id"]]
if subscribers is not None:
stream_dict['subscribers'] = subscribers
never_subscribed.append(stream_dict)
return (sorted(subscribed, key=lambda x: x['name']),
sorted(unsubscribed, key=lambda x: x['name']),
sorted(never_subscribed, key=lambda x: x['name']))
def gather_subscriptions(user_profile):
# type: (UserProfile) -> Tuple[List[Dict[str, Any]], List[Dict[str, Any]]]
subscribed, unsubscribed, never_subscribed = gather_subscriptions_helper(user_profile)
user_ids = set()
for subs in [subscribed, unsubscribed, never_subscribed]:
for sub in subs:
if 'subscribers' in sub:
for subscriber in sub['subscribers']:
user_ids.add(subscriber)
email_dict = get_emails_from_user_ids(list(user_ids))
for subs in [subscribed, unsubscribed]:
for sub in subs:
if 'subscribers' in sub:
sub['subscribers'] = [email_dict[user_id] for user_id in sub['subscribers']]
return (subscribed, unsubscribed)
def get_status_dict(requesting_user_profile):
# type: (UserProfile) -> Dict[Text, Dict[Text, Dict[str, Any]]]
if requesting_user_profile.realm.presence_disabled:
# Return an empty dict if presence is disabled in this realm
return defaultdict(dict)
return UserPresence.get_status_dict_by_realm(requesting_user_profile.realm_id)
def get_cross_realm_dicts():
# type: () -> List[Dict[str, Any]]
users = [get_user_profile_by_email(email) for email in get_cross_realm_emails()]
return [{'email': user.email,
'user_id': user.id,
'is_admin': user.is_realm_admin,
'is_bot': user.is_bot,
'full_name': user.full_name}
for user in users]
def do_send_confirmation_email(invitee, referrer, body):
# type: (PreregistrationUser, UserProfile, Optional[str]) -> None
"""
Send the confirmation/welcome e-mail to an invited user.
`invitee` is a PreregistrationUser.
`referrer` is a UserProfile.
"""
subject_template_path = 'confirmation/invite_email.subject'
body_template_path = 'confirmation/invite_email.txt'
html_body_template_path = 'confirmation/invite_email.html'
context = {'referrer': referrer,
'support_email': settings.ZULIP_ADMINISTRATOR,
'verbose_support_offers': settings.VERBOSE_SUPPORT_OFFERS}
if referrer.realm.is_zephyr_mirror_realm:
subject_template_path = 'confirmation/mituser_invite_email_subject.txt'
body_template_path = 'confirmation/mituser_invite_email_body.txt'
html_body_template_path = None
Confirmation.objects.send_confirmation(
invitee, invitee.email, additional_context=context,
subject_template_path=subject_template_path,
body_template_path=body_template_path,
html_body_template_path=html_body_template_path,
host=referrer.realm.host, custom_body=body)
@statsd_increment("push_notifications")
def handle_push_notification(user_profile_id, missed_message):
# type: (int, Dict[str, Any]) -> None
try:
user_profile = get_user_profile_by_id(user_profile_id)
if not (receives_offline_notifications(user_profile) or receives_online_notifications(user_profile)):
return
umessage = UserMessage.objects.get(user_profile=user_profile,
message__id=missed_message['message_id'])
message = umessage.message
if umessage.flags.read:
return
sender_str = message.sender.full_name
apple = num_push_devices_for_user(user_profile, kind=PushDeviceToken.APNS)
android = num_push_devices_for_user(user_profile, kind=PushDeviceToken.GCM)
if apple or android:
# TODO: set badge count in a better way
# Determine what alert string to display based on the missed messages
if message.recipient.type == Recipient.HUDDLE:
alert = "New private group message from %s" % (sender_str,)
elif message.recipient.type == Recipient.PERSONAL:
alert = "New private message from %s" % (sender_str,)
elif message.recipient.type == Recipient.STREAM:
alert = "New mention from %s" % (sender_str,)
else:
alert = "New Zulip mentions and private messages from %s" % (sender_str,)
if apple:
apple_extra_data = {'message_ids': [message.id]}
send_apple_push_notification(user_profile, alert, badge=1, zulip=apple_extra_data)
if android:
content = message.content
content_truncated = (len(content) > 200)
if content_truncated:
content = content[:200] + "..."
android_data = {
'user': user_profile.email,
'event': 'message',
'alert': alert,
'zulip_message_id': message.id, # message_id is reserved for CCS
'time': datetime_to_timestamp(message.pub_date),
'content': content,
'content_truncated': content_truncated,
'sender_email': message.sender.email,
'sender_full_name': message.sender.full_name,
'sender_avatar_url': avatar_url(message.sender),
}
if message.recipient.type == Recipient.STREAM:
android_data['recipient_type'] = "stream"
android_data['stream'] = get_display_recipient(message.recipient)
android_data['topic'] = message.subject
elif message.recipient.type in (Recipient.HUDDLE, Recipient.PERSONAL):
android_data['recipient_type'] = "private"
send_android_push_notification(user_profile, android_data)
except UserMessage.DoesNotExist:
logging.error("Could not find UserMessage with message_id %s" % (missed_message['message_id'],))
def is_inactive(email):
# type: (Text) -> None
try:
if get_user_profile_by_email(email).is_active:
raise ValidationError(u'%s is already active' % (email,))
except UserProfile.DoesNotExist:
pass
def user_email_is_unique(email):
# type: (Text) -> None
try:
get_user_profile_by_email(email)
raise ValidationError(u'%s is already registered' % (email,))
except UserProfile.DoesNotExist:
pass
def validate_email(user_profile, email):
# type: (UserProfile, Text) -> Tuple[Optional[str], Optional[str]]
try:
validators.validate_email(email)
except ValidationError:
return _("Invalid address."), None
if not email_allowed_for_realm(email, user_profile.realm):
return _("Outside your domain."), None
try:
existing_user_profile = get_user_profile_by_email(email)
except UserProfile.DoesNotExist:
existing_user_profile = None
try:
if existing_user_profile is not None and existing_user_profile.is_mirror_dummy:
# Mirror dummy users to be activated must be inactive
is_inactive(email)
else:
# Other users should not already exist at all.
user_email_is_unique(email)
except ValidationError:
return None, _("Already has an account.")
return None, None
def do_invite_users(user_profile, invitee_emails, streams, body=None):
# type: (UserProfile, SizedTextIterable, Iterable[Stream], Optional[str]) -> Tuple[Optional[str], Dict[str, Union[List[Tuple[Text, str]], bool]]]
validated_emails = [] # type: List[Text]
errors = [] # type: List[Tuple[Text, str]]
skipped = [] # type: List[Tuple[Text, str]]
ret_error = None # type: Optional[str]
ret_error_data = {} # type: Dict[str, Union[List[Tuple[Text, str]], bool]]
for email in invitee_emails:
if email == '':
continue
email_error, email_skipped = validate_email(user_profile, email)
if not (email_error or email_skipped):
validated_emails.append(email)
elif email_error:
errors.append((email, email_error))
elif email_skipped:
skipped.append((email, email_skipped))
if errors:
ret_error = _("Some emails did not validate, so we didn't send any invitations.")
ret_error_data = {'errors': errors + skipped, 'sent_invitations': False}
return ret_error, ret_error_data
if skipped and len(skipped) == len(invitee_emails):
# All e-mails were skipped, so we didn't actually invite anyone.
ret_error = _("We weren't able to invite anyone.")
ret_error_data = {'errors': skipped, 'sent_invitations': False}
return ret_error, ret_error_data
# Now that we are past all the possible errors, we actually create
# the PreregistrationUser objects and trigger the email invitations.
for email in validated_emails:
# The logged in user is the referrer.
prereg_user = PreregistrationUser(email=email, referred_by=user_profile)
# We save twice because you cannot associate a ManyToMany field
# on an unsaved object.
prereg_user.save()
prereg_user.streams = streams
prereg_user.save()
event = {"email": prereg_user.email, "referrer_email": user_profile.email, "email_body": body}
queue_json_publish("invites", event,
lambda event: do_send_confirmation_email(prereg_user, user_profile, body))
if skipped:
ret_error = _("Some of those addresses are already using Zulip, "
"so we didn't send them an invitation. We did send "
"invitations to everyone else!")
ret_error_data = {'errors': skipped, 'sent_invitations': True}
return ret_error, ret_error_data
def send_referral_event(user_profile):
# type: (UserProfile) -> None
event = dict(type="referral",
referrals=dict(granted=user_profile.invites_granted,
used=user_profile.invites_used))
send_event(event, [user_profile.id])
def do_refer_friend(user_profile, email):
# type: (UserProfile, Text) -> None
content = ('Referrer: "%s" <%s>\n'
'Realm: %s\n'
'Referred: %s') % (user_profile.full_name, user_profile.email,
user_profile.realm.domain, email)
subject = "Zulip referral: %s" % (email,)
from_email = '"%s" <%s>' % (user_profile.full_name, 'referrals@zulip.com')
to_email = '"Zulip Referrals" <zulip+referrals@zulip.com>'
headers = {'Reply-To': '"%s" <%s>' % (user_profile.full_name, user_profile.email,)}
msg = EmailMessage(subject, content, from_email, [to_email], headers=headers)
msg.send()
referral = Referral(user_profile=user_profile, email=email)
referral.save()
user_profile.invites_used += 1
user_profile.save(update_fields=['invites_used'])
send_referral_event(user_profile)
def notify_realm_emoji(realm):
# type: (Realm) -> None
event = dict(type="realm_emoji", op="update",
realm_emoji=realm.get_emoji())
send_event(event, active_user_ids(realm))
def check_add_realm_emoji(realm, name, img_url, author=None):
# type: (Realm, Text, Text, Optional[UserProfile]) -> None
emoji = RealmEmoji(realm=realm, name=name, img_url=img_url, author=author)
emoji.full_clean()
emoji.save()
notify_realm_emoji(realm)
def do_remove_realm_emoji(realm, name):
# type: (Realm, Text) -> None
RealmEmoji.objects.get(realm=realm, name=name).delete()
notify_realm_emoji(realm)
def notify_alert_words(user_profile, words):
# type: (UserProfile, Iterable[Text]) -> None
event = dict(type="alert_words", alert_words=words)
send_event(event, [user_profile.id])
def do_add_alert_words(user_profile, alert_words):
# type: (UserProfile, Iterable[Text]) -> None
words = add_user_alert_words(user_profile, alert_words)
notify_alert_words(user_profile, words)
def do_remove_alert_words(user_profile, alert_words):
# type: (UserProfile, Iterable[Text]) -> None
words = remove_user_alert_words(user_profile, alert_words)
notify_alert_words(user_profile, words)
def do_set_alert_words(user_profile, alert_words):
# type: (UserProfile, List[Text]) -> None
set_user_alert_words(user_profile, alert_words)
notify_alert_words(user_profile, alert_words)
def do_set_muted_topics(user_profile, muted_topics):
# type: (UserProfile, Union[List[List[Text]], List[Tuple[Text, Text]]]) -> None
user_profile.muted_topics = ujson.dumps(muted_topics)
user_profile.save(update_fields=['muted_topics'])
event = dict(type="muted_topics", muted_topics=muted_topics)
send_event(event, [user_profile.id])
def notify_realm_filters(realm):
# type: (Realm) -> None
realm_filters = realm_filters_for_realm(realm.id)
event = dict(type="realm_filters", realm_filters=realm_filters)
send_event(event, active_user_ids(realm))
# NOTE: Regexes must be simple enough that they can be easily translated to JavaScript
# RegExp syntax. In addition to JS-compatible syntax, the following features are available:
# * Named groups will be converted to numbered groups automatically
# * Inline-regex flags will be stripped, and where possible translated to RegExp-wide flags
def do_add_realm_filter(realm, pattern, url_format_string):
# type: (Realm, Text, Text) -> int
pattern = pattern.strip()
url_format_string = url_format_string.strip()
realm_filter = RealmFilter(
realm=realm, pattern=pattern,
url_format_string=url_format_string)
realm_filter.full_clean()
realm_filter.save()
notify_realm_filters(realm)
return realm_filter.id
def do_remove_realm_filter(realm, pattern=None, id=None):
# type: (Realm, Optional[Text], Optional[int]) -> None
if pattern is not None:
RealmFilter.objects.get(realm=realm, pattern=pattern).delete()
else:
RealmFilter.objects.get(realm=realm, pk=id).delete()
notify_realm_filters(realm)
def get_emails_from_user_ids(user_ids):
# type: (Sequence[int]) -> Dict[int, Text]
# We may eventually use memcached to speed this up, but the DB is fast.
return UserProfile.emails_from_ids(user_ids)
def get_realm_aliases(realm):
# type: (Realm) -> List[Dict[str, Text]]
return list(realm.realmalias_set.values('domain', 'allow_subdomains'))
def do_add_realm_alias(realm, domain, allow_subdomains):
# type: (Realm, Text, bool) -> (RealmAlias)
alias = RealmAlias.objects.create(realm=realm, domain=domain,
allow_subdomains=allow_subdomains)
event = dict(type="realm_domains", op="add",
alias=dict(domain=alias.domain,
allow_subdomains=alias.allow_subdomains))
send_event(event, active_user_ids(realm))
return alias
def do_change_realm_alias(alias, allow_subdomains):
# type: (RealmAlias, bool) -> None
alias.allow_subdomains = allow_subdomains
alias.save(update_fields=['allow_subdomains'])
event = dict(type="realm_domains", op="change",
alias=dict(domain=alias.domain,
allow_subdomains=alias.allow_subdomains))
send_event(event, active_user_ids(alias.realm))
def do_remove_realm_alias(alias):
# type: (RealmAlias) -> None
realm = alias.realm
domain = alias.domain
alias.delete()
if RealmAlias.objects.filter(realm=realm).count() == 0 and realm.restricted_to_domain:
# If this was the last realm alias, we mark the realm as no
# longer restricted to domain, because the feature doesn't do
# anything if there are no domains, and this is probably less
# confusing than the alternative.
do_set_realm_restricted_to_domain(realm, False)
event = dict(type="realm_domains", op="remove", domain=domain)
send_event(event, active_user_ids(realm))
def get_occupied_streams(realm):
# type: (Realm) -> QuerySet
# TODO: Make a generic stub for QuerySet
""" Get streams with subscribers """
subs_filter = Subscription.objects.filter(active=True, user_profile__realm=realm,
user_profile__is_active=True).values('recipient_id')
stream_ids = Recipient.objects.filter(
type=Recipient.STREAM, id__in=subs_filter).values('type_id')
return Stream.objects.filter(id__in=stream_ids, realm=realm, deactivated=False)
def do_get_streams(user_profile, include_public=True, include_subscribed=True,
include_all_active=False, include_default=False):
# type: (UserProfile, bool, bool, bool, bool) -> List[Dict[str, Any]]
if include_all_active and not user_profile.is_api_super_user:
raise JsonableError(_("User not authorized for this query"))
# Listing public streams are disabled for Zephyr mirroring realms.
include_public = include_public and not user_profile.realm.is_zephyr_mirror_realm
# Start out with all streams in the realm with subscribers
query = get_occupied_streams(user_profile.realm)
if not include_all_active:
user_subs = Subscription.objects.select_related("recipient").filter(
active=True, user_profile=user_profile,
recipient__type=Recipient.STREAM)
if include_subscribed:
recipient_check = Q(id__in=[sub.recipient.type_id for sub in user_subs])
if include_public:
invite_only_check = Q(invite_only=False)
if include_subscribed and include_public:
query = query.filter(recipient_check | invite_only_check)
elif include_public:
query = query.filter(invite_only_check)
elif include_subscribed:
query = query.filter(recipient_check)
else:
# We're including nothing, so don't bother hitting the DB.
query = []
streams = [(row.to_dict()) for row in query]
streams.sort(key=lambda elt: elt["name"])
if include_default:
is_default = {}
default_streams = get_default_streams_for_realm(user_profile.realm)
for default_stream in default_streams:
is_default[default_stream.id] = True
for stream in streams:
stream['is_default'] = is_default.get(stream["stream_id"], False)
return streams
def do_claim_attachments(message):
# type: (Message) -> List[Tuple[Text, bool]]
attachment_url_list = attachment_url_re.findall(message.content)
results = []
for url in attachment_url_list:
path_id = attachment_url_to_path_id(url)
user_profile = message.sender
is_message_realm_public = False
if message.recipient.type == Recipient.STREAM:
is_message_realm_public = Stream.objects.get(id=message.recipient.type_id).is_public()
if path_id is not None:
is_claimed = claim_attachment(user_profile, path_id, message,
is_message_realm_public)
results.append((path_id, is_claimed))
return results
def do_delete_old_unclaimed_attachments(weeks_ago):
# type: (int) -> None
old_unclaimed_attachments = get_old_unclaimed_attachments(weeks_ago)
for attachment in old_unclaimed_attachments:
delete_message_image(attachment.path_id)
attachment.delete()
def check_attachment_reference_change(prev_content, message):
# type: (Text, Message) -> None
new_content = message.content
prev_attachments = set(attachment_url_re.findall(prev_content))
new_attachments = set(attachment_url_re.findall(new_content))
to_remove = list(prev_attachments - new_attachments)
path_ids = []
for url in to_remove:
path_id = attachment_url_to_path_id(url)
path_ids.append(path_id)
attachments_to_update = Attachment.objects.filter(path_id__in=path_ids).select_for_update()
message.attachment_set.remove(*attachments_to_update)
to_add = list(new_attachments - prev_attachments)
if len(to_add) > 0:
do_claim_attachments(message)