mirror of https://github.com/zulip/zulip.git
140 lines
6.5 KiB
Python
140 lines
6.5 KiB
Python
|
|
from django.http import HttpRequest, HttpResponse
|
|
from django.utils.translation import ugettext as _
|
|
|
|
from zerver.decorator import \
|
|
has_request_variables, REQ, to_non_negative_int
|
|
from zerver.lib.actions import do_add_reaction, do_add_reaction_legacy,\
|
|
do_remove_reaction, do_remove_reaction_legacy
|
|
from zerver.lib.emoji import check_emoji_request, check_valid_emoji
|
|
from zerver.lib.message import access_message
|
|
from zerver.lib.request import JsonableError
|
|
from zerver.lib.response import json_success
|
|
from zerver.models import Message, Reaction, UserMessage, UserProfile
|
|
|
|
def create_historical_message(user_profile: UserProfile, message: Message) -> None:
|
|
# Users can see and react to messages sent to streams they
|
|
# were not a subscriber to; in order to receive events for
|
|
# those, we give the user a `historical` UserMessage objects
|
|
# for the message. This is the same trick we use for starring
|
|
# messages.
|
|
UserMessage.objects.create(user_profile=user_profile,
|
|
message=message,
|
|
flags=UserMessage.flags.historical | UserMessage.flags.read)
|
|
|
|
@has_request_variables
|
|
def add_reaction(request: HttpRequest, user_profile: UserProfile, message_id: int,
|
|
emoji_name: str=REQ(),
|
|
emoji_code: str=REQ(),
|
|
reaction_type: str=REQ(default="unicode_emoji")) -> HttpResponse:
|
|
message, user_message = access_message(user_profile, message_id)
|
|
|
|
if Reaction.objects.filter(user_profile=user_profile,
|
|
message=message,
|
|
emoji_code=emoji_code,
|
|
reaction_type=reaction_type).exists():
|
|
raise JsonableError(_("Reaction already exists."))
|
|
|
|
query = Reaction.objects.filter(message=message,
|
|
emoji_code=emoji_code,
|
|
reaction_type=reaction_type)
|
|
if query.exists():
|
|
# If another user has already reacted to this message with
|
|
# same emoji code, we treat the new reaction as a vote for the
|
|
# existing reaction. So the emoji name used by that earlier
|
|
# reaction takes precendence over whatever was passed in this
|
|
# request. This is necessary to avoid a message having 2
|
|
# "different" emoji reactions with the same emoji code (and
|
|
# thus same image) on the same message, which looks ugly.
|
|
#
|
|
# In this "voting for an existing reaction" case, we shouldn't
|
|
# check whether the emoji code and emoji name match, since
|
|
# it's possible that the (emoji_type, emoji_name, emoji_code)
|
|
# triple for this existing rection xmay not pass validation
|
|
# now (e.g. because it is for a realm emoji that has been
|
|
# since deactivated). We still want to allow users to add a
|
|
# vote any old reaction they see in the UI even if that is a
|
|
# deactivated custom emoji, so we just use the emoji name from
|
|
# the existing reaction with no further validation.
|
|
emoji_name = query.first().emoji_name
|
|
else:
|
|
# Otherwise, use the name provided in this request, but verify
|
|
# it is valid in the user's realm (e.g. not a deactivated
|
|
# realm emoji).
|
|
check_emoji_request(message.sender.realm, emoji_name,
|
|
emoji_code, reaction_type)
|
|
|
|
if user_message is None:
|
|
create_historical_message(user_profile, message)
|
|
|
|
do_add_reaction(user_profile, message, emoji_name, emoji_code, reaction_type)
|
|
|
|
return json_success()
|
|
|
|
@has_request_variables
|
|
def remove_reaction(request: HttpRequest, user_profile: UserProfile, message_id: int,
|
|
emoji_code: str=REQ(),
|
|
reaction_type: str=REQ(default="unicode_emoji")) -> HttpResponse:
|
|
message, user_message = access_message(user_profile, message_id)
|
|
|
|
if not Reaction.objects.filter(user_profile=user_profile,
|
|
message=message,
|
|
emoji_code=emoji_code,
|
|
reaction_type=reaction_type).exists():
|
|
raise JsonableError(_("Reaction doesn't exist."))
|
|
|
|
# Unlike adding reactions, while deleting a reaction, we don't
|
|
# check whether the provided (emoji_type, emoji_code) pair is
|
|
# valid in this realm. Since there's a row in the database, we
|
|
# know it was valid when the user added their reaction in the
|
|
# first place, so it is safe to just remove the reaction if it
|
|
# exists. And the (reaction_type, emoji_code) pair may no longer be
|
|
# valid in legitimate situations (e.g. if a realm emoji was
|
|
# deactivated by an administrator in the meantime).
|
|
do_remove_reaction(user_profile, message, emoji_code, reaction_type)
|
|
|
|
return json_success()
|
|
|
|
@has_request_variables
|
|
def add_reaction_legacy(request: HttpRequest, user_profile: UserProfile,
|
|
message_id: int, emoji_name: str) -> HttpResponse:
|
|
|
|
# access_message will throw a JsonableError exception if the user
|
|
# cannot see the message (e.g. for messages to private streams).
|
|
message, user_message = access_message(user_profile, message_id)
|
|
|
|
check_valid_emoji(message.sender.realm, emoji_name)
|
|
|
|
# We could probably just make this check be a try/except for the
|
|
# IntegrityError from it already existing, but this is a bit cleaner.
|
|
if Reaction.objects.filter(user_profile=user_profile,
|
|
message=message,
|
|
emoji_name=emoji_name).exists():
|
|
raise JsonableError(_("Reaction already exists"))
|
|
|
|
if user_message is None:
|
|
create_historical_message(user_profile, message)
|
|
|
|
do_add_reaction_legacy(user_profile, message, emoji_name)
|
|
|
|
return json_success()
|
|
|
|
@has_request_variables
|
|
def remove_reaction_legacy(request: HttpRequest, user_profile: UserProfile,
|
|
message_id: int, emoji_name: str) -> HttpResponse:
|
|
|
|
# access_message will throw a JsonableError exception if the user
|
|
# cannot see the message (e.g. for messages to private streams).
|
|
message = access_message(user_profile, message_id)[0]
|
|
|
|
# We could probably just make this check be a try/except for the
|
|
# IntegrityError from it already existing, but this is a bit cleaner.
|
|
if not Reaction.objects.filter(user_profile=user_profile,
|
|
message=message,
|
|
emoji_name=emoji_name).exists():
|
|
raise JsonableError(_("Reaction does not exist"))
|
|
|
|
do_remove_reaction_legacy(user_profile, message, emoji_name)
|
|
|
|
return json_success()
|