Files
zulip/zerver/lib/notification_data.py
Sahil Batra 764f4aa2e0 groups: Use realm_for_sharding for limiting NamedUserGroup queries.
For get and filter queries of NamedUserGroup, realm_for_sharding
field is used instead of realm field, as directly using
realm_for_sharding field on NamedUserGroup makes the query faster
than using realm present on the base UserGroup table.
2025-09-23 12:15:53 -07:00

399 lines
17 KiB
Python

import math
from collections.abc import Collection
from dataclasses import dataclass
from typing import Any
from zerver.lib.mention import MentionData
from zerver.lib.user_groups import get_user_group_member_ids
from zerver.models import NamedUserGroup, UserProfile, UserTopic
from zerver.models.scheduled_jobs import NotificationTriggers
@dataclass
class UserMessageNotificationsData:
user_id: int
online_push_enabled: bool
dm_email_notify: bool
dm_push_notify: bool
mention_email_notify: bool
mention_push_notify: bool
topic_wildcard_mention_email_notify: bool
topic_wildcard_mention_push_notify: bool
stream_wildcard_mention_email_notify: bool
stream_wildcard_mention_push_notify: bool
stream_push_notify: bool
stream_email_notify: bool
followed_topic_push_notify: bool
followed_topic_email_notify: bool
topic_wildcard_mention_in_followed_topic_push_notify: bool
topic_wildcard_mention_in_followed_topic_email_notify: bool
stream_wildcard_mention_in_followed_topic_push_notify: bool
stream_wildcard_mention_in_followed_topic_email_notify: bool
sender_is_muted: bool
disable_external_notifications: bool
def __post_init__(self) -> None:
# Check that there's no dubious data.
if self.dm_email_notify or self.dm_push_notify:
assert not (
self.stream_email_notify
or self.stream_push_notify
or self.followed_topic_email_notify
or self.followed_topic_push_notify
)
if (
self.stream_email_notify
or self.stream_push_notify
or self.followed_topic_email_notify
or self.followed_topic_push_notify
):
assert not (self.dm_email_notify or self.dm_push_notify)
@classmethod
def from_user_id_sets(
cls,
*,
user_id: int,
flags: Collection[str],
private_message: bool,
disable_external_notifications: bool,
online_push_user_ids: set[int],
dm_mention_push_disabled_user_ids: set[int],
dm_mention_email_disabled_user_ids: set[int],
stream_push_user_ids: set[int],
stream_email_user_ids: set[int],
topic_wildcard_mention_user_ids: set[int],
stream_wildcard_mention_user_ids: set[int],
followed_topic_push_user_ids: set[int],
followed_topic_email_user_ids: set[int],
topic_wildcard_mention_in_followed_topic_user_ids: set[int],
stream_wildcard_mention_in_followed_topic_user_ids: set[int],
muted_sender_user_ids: set[int],
all_bot_user_ids: set[int],
push_device_registered_user_ids: set[int] | None,
) -> "UserMessageNotificationsData":
if user_id in all_bot_user_ids:
# Don't send any notifications to bots
return cls(
user_id=user_id,
dm_email_notify=False,
mention_email_notify=False,
topic_wildcard_mention_email_notify=False,
stream_wildcard_mention_email_notify=False,
dm_push_notify=False,
mention_push_notify=False,
topic_wildcard_mention_push_notify=False,
stream_wildcard_mention_push_notify=False,
online_push_enabled=False,
stream_push_notify=False,
stream_email_notify=False,
followed_topic_push_notify=False,
followed_topic_email_notify=False,
topic_wildcard_mention_in_followed_topic_push_notify=False,
topic_wildcard_mention_in_followed_topic_email_notify=False,
stream_wildcard_mention_in_followed_topic_push_notify=False,
stream_wildcard_mention_in_followed_topic_email_notify=False,
sender_is_muted=False,
disable_external_notifications=False,
)
# `stream_wildcard_mention_user_ids`, `topic_wildcard_mention_user_ids`,
# `stream_wildcard_mention_in_followed_topic_user_ids` and `topic_wildcard_mention_in_followed_topic_user_ids`
# are those user IDs for whom stream or topic wildcard mentions should obey notification
# settings for personal mentions. Hence, it isn't an independent notification setting and acts as a wrapper.
dm_email_notify = user_id not in dm_mention_email_disabled_user_ids and private_message
mention_email_notify = (
user_id not in dm_mention_email_disabled_user_ids and "mentioned" in flags
)
topic_wildcard_mention_email_notify = (
user_id in topic_wildcard_mention_user_ids
and user_id not in dm_mention_email_disabled_user_ids
and "topic_wildcard_mentioned" in flags
)
stream_wildcard_mention_email_notify = (
user_id in stream_wildcard_mention_user_ids
and user_id not in dm_mention_email_disabled_user_ids
and "stream_wildcard_mentioned" in flags
)
topic_wildcard_mention_in_followed_topic_email_notify = (
user_id in topic_wildcard_mention_in_followed_topic_user_ids
and user_id not in dm_mention_email_disabled_user_ids
and "topic_wildcard_mentioned" in flags
)
stream_wildcard_mention_in_followed_topic_email_notify = (
user_id in stream_wildcard_mention_in_followed_topic_user_ids
and user_id not in dm_mention_email_disabled_user_ids
and "stream_wildcard_mentioned" in flags
)
# TODO/compatibility: `push_device_registered_user_ids` is None when
# `process_message_event`/`process_message_update_event` handles events
# prior to the introduction of `push_device_registered_user_ids` field in the events.
# We hardcode `push_device_registered` to True as the check is meant for newer events.
#
# Remove the `if` block when one can no longer directly upgrade from 11.x to main.
if push_device_registered_user_ids is None:
push_device_registered = True
else:
push_device_registered = user_id in push_device_registered_user_ids
dm_push_notify = (
push_device_registered
and user_id not in dm_mention_push_disabled_user_ids
and private_message
)
mention_push_notify = (
push_device_registered
and user_id not in dm_mention_push_disabled_user_ids
and "mentioned" in flags
)
topic_wildcard_mention_push_notify = (
push_device_registered
and user_id in topic_wildcard_mention_user_ids
and user_id not in dm_mention_push_disabled_user_ids
and "topic_wildcard_mentioned" in flags
)
stream_wildcard_mention_push_notify = (
push_device_registered
and user_id in stream_wildcard_mention_user_ids
and user_id not in dm_mention_push_disabled_user_ids
and "stream_wildcard_mentioned" in flags
)
topic_wildcard_mention_in_followed_topic_push_notify = (
push_device_registered
and user_id in topic_wildcard_mention_in_followed_topic_user_ids
and user_id not in dm_mention_push_disabled_user_ids
and "topic_wildcard_mentioned" in flags
)
stream_wildcard_mention_in_followed_topic_push_notify = (
push_device_registered
and user_id in stream_wildcard_mention_in_followed_topic_user_ids
and user_id not in dm_mention_push_disabled_user_ids
and "stream_wildcard_mentioned" in flags
)
online_push_enabled = push_device_registered and user_id in online_push_user_ids
stream_push_notify = push_device_registered and user_id in stream_push_user_ids
followed_topic_push_notify = (
push_device_registered and user_id in followed_topic_push_user_ids
)
return cls(
user_id=user_id,
dm_email_notify=dm_email_notify,
mention_email_notify=mention_email_notify,
topic_wildcard_mention_email_notify=topic_wildcard_mention_email_notify,
stream_wildcard_mention_email_notify=stream_wildcard_mention_email_notify,
dm_push_notify=dm_push_notify,
mention_push_notify=mention_push_notify,
topic_wildcard_mention_push_notify=topic_wildcard_mention_push_notify,
stream_wildcard_mention_push_notify=stream_wildcard_mention_push_notify,
online_push_enabled=online_push_enabled,
stream_push_notify=stream_push_notify,
stream_email_notify=user_id in stream_email_user_ids,
followed_topic_push_notify=followed_topic_push_notify,
followed_topic_email_notify=user_id in followed_topic_email_user_ids,
topic_wildcard_mention_in_followed_topic_push_notify=topic_wildcard_mention_in_followed_topic_push_notify,
topic_wildcard_mention_in_followed_topic_email_notify=topic_wildcard_mention_in_followed_topic_email_notify,
stream_wildcard_mention_in_followed_topic_push_notify=stream_wildcard_mention_in_followed_topic_push_notify,
stream_wildcard_mention_in_followed_topic_email_notify=stream_wildcard_mention_in_followed_topic_email_notify,
sender_is_muted=user_id in muted_sender_user_ids,
disable_external_notifications=disable_external_notifications,
)
# For these functions, acting_user_id is the user sent a message
# (or edited a message) triggering the event for which we need to
# determine notifiability.
def trivially_should_not_notify(self, acting_user_id: int) -> bool:
"""Common check for reasons not to trigger a notification that arex
independent of users' notification settings and thus don't
depend on what type of notification (email/push) it is.
"""
if self.user_id == acting_user_id:
return True
if self.sender_is_muted:
return True
if self.disable_external_notifications:
return True
return False
def is_notifiable(self, acting_user_id: int, idle: bool) -> bool:
return self.is_email_notifiable(acting_user_id, idle) or self.is_push_notifiable(
acting_user_id, idle
)
def is_push_notifiable(self, acting_user_id: int, idle: bool) -> bool:
return self.get_push_notification_trigger(acting_user_id, idle) is not None
def get_push_notification_trigger(self, acting_user_id: int, idle: bool) -> str | None:
if not idle and not self.online_push_enabled:
return None
if self.trivially_should_not_notify(acting_user_id):
return None
# The order here is important. If, for example, both
# `mention_push_notify` and `stream_push_notify` are True, we
# want to classify it as a mention, since that's more salient.
if self.dm_push_notify:
return NotificationTriggers.DIRECT_MESSAGE
elif self.mention_push_notify:
return NotificationTriggers.MENTION
elif self.topic_wildcard_mention_in_followed_topic_push_notify:
return NotificationTriggers.TOPIC_WILDCARD_MENTION_IN_FOLLOWED_TOPIC
elif self.stream_wildcard_mention_in_followed_topic_push_notify:
return NotificationTriggers.STREAM_WILDCARD_MENTION_IN_FOLLOWED_TOPIC
elif self.topic_wildcard_mention_push_notify:
return NotificationTriggers.TOPIC_WILDCARD_MENTION
elif self.stream_wildcard_mention_push_notify:
return NotificationTriggers.STREAM_WILDCARD_MENTION
elif self.followed_topic_push_notify:
return NotificationTriggers.FOLLOWED_TOPIC_PUSH
elif self.stream_push_notify:
return NotificationTriggers.STREAM_PUSH
else:
return None
def is_email_notifiable(self, acting_user_id: int, idle: bool) -> bool:
return self.get_email_notification_trigger(acting_user_id, idle) is not None
def get_email_notification_trigger(self, acting_user_id: int, idle: bool) -> str | None:
if not idle:
return None
if self.trivially_should_not_notify(acting_user_id):
return None
# The order here is important. If, for example, both
# `mention_email_notify` and `stream_email_notify` are True, we
# want to classify it as a mention, since that's more salient.
if self.dm_email_notify:
return NotificationTriggers.DIRECT_MESSAGE
elif self.mention_email_notify:
return NotificationTriggers.MENTION
elif self.topic_wildcard_mention_in_followed_topic_email_notify:
return NotificationTriggers.TOPIC_WILDCARD_MENTION_IN_FOLLOWED_TOPIC
elif self.stream_wildcard_mention_in_followed_topic_email_notify:
return NotificationTriggers.STREAM_WILDCARD_MENTION_IN_FOLLOWED_TOPIC
elif self.topic_wildcard_mention_email_notify:
return NotificationTriggers.TOPIC_WILDCARD_MENTION
elif self.stream_wildcard_mention_email_notify:
return NotificationTriggers.STREAM_WILDCARD_MENTION
elif self.followed_topic_email_notify:
return NotificationTriggers.FOLLOWED_TOPIC_EMAIL
elif self.stream_email_notify:
return NotificationTriggers.STREAM_EMAIL
else:
return None
def user_allows_notifications_in_StreamTopic(
stream_is_muted: bool,
visibility_policy: int,
stream_specific_setting: bool | None,
global_setting: bool,
) -> bool:
"""
Captures the hierarchy of notification settings, where visibility policy is considered first,
followed by stream-specific settings, and the global-setting in the UserProfile is the fallback.
"""
if stream_is_muted and visibility_policy != UserTopic.VisibilityPolicy.UNMUTED:
return False
if visibility_policy == UserTopic.VisibilityPolicy.MUTED:
return False
if stream_specific_setting is not None:
return stream_specific_setting
return global_setting
def get_user_group_mentions_data(
mentioned_user_ids: set[int], mentioned_user_group_ids: list[int], mention_data: MentionData
) -> dict[int, int]:
# Maps user_id -> mentioned user_group_id
mentioned_user_groups_map: dict[int, int] = dict()
# Add members of the mentioned user groups into `mentions_user_ids`.
for group_id in mentioned_user_group_ids:
member_ids = mention_data.get_group_members(group_id)
for member_id in member_ids:
if member_id in mentioned_user_ids:
# If a user is also mentioned personally, we use that as a trigger
# for notifications.
continue
if member_id in mentioned_user_groups_map:
# If multiple user groups are mentioned, we prefer the
# user group with the least members for email/mobile
# notifications.
previous_group_id = mentioned_user_groups_map[member_id]
previous_group_member_ids = mention_data.get_group_members(previous_group_id)
if len(previous_group_member_ids) > len(member_ids):
mentioned_user_groups_map[member_id] = group_id
else:
mentioned_user_groups_map[member_id] = group_id
return mentioned_user_groups_map
@dataclass
class MentionedUserGroup:
id: int
name: str
members_count: int
def get_mentioned_user_group(
messages: list[dict[str, Any]], user_profile: UserProfile
) -> MentionedUserGroup | None:
"""Returns the user group name to display in the email notification
if user group(s) are mentioned.
This implements the same algorithm as get_user_group_mentions_data
in zerver/lib/notification_data.py, but we're passed a list of
messages instead.
"""
for message in messages:
if (
message.get("mentioned_user_group_id") is None
and message["trigger"] == NotificationTriggers.MENTION
):
# The user has also been personally mentioned, so that gets prioritized.
return None
# These IDs are those of the smallest user groups mentioned in each message.
mentioned_user_group_ids = [
message["mentioned_user_group_id"]
for message in messages
if message.get("mentioned_user_group_id") is not None
]
if len(mentioned_user_group_ids) == 0:
return None
# We now want to calculate the name of the smallest user group mentioned among
# all these messages.
smallest_user_group_size = math.inf
for user_group_id in mentioned_user_group_ids:
current_user_group = NamedUserGroup.objects.get(
id=user_group_id, realm_for_sharding=user_profile.realm
)
current_mentioned_user_group = MentionedUserGroup(
id=current_user_group.id,
name=current_user_group.name,
members_count=len(get_user_group_member_ids(current_user_group)),
)
if current_mentioned_user_group.members_count < smallest_user_group_size:
# If multiple user groups are mentioned, we prefer the
# user group with the least members.
smallest_user_group_size = current_mentioned_user_group.members_count
smallest_mentioned_user_group = current_mentioned_user_group
return smallest_mentioned_user_group