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66 lines
2.8 KiB
Python
66 lines
2.8 KiB
Python
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from django.http import HttpRequest, HttpResponse
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from django.utils.translation import ugettext as _
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from typing import Text
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from zerver.decorator import authenticated_json_post_view,\
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has_request_variables, REQ, to_non_negative_int
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from zerver.lib.actions import do_add_reaction, do_remove_reaction
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from zerver.lib.emoji import check_valid_emoji
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from zerver.lib.message import access_message
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from zerver.lib.request import JsonableError
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from zerver.lib.response import json_success
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from zerver.models import Reaction, UserMessage, UserProfile
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@has_request_variables
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def add_reaction_backend(request, user_profile, message_id, emoji_name):
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# type: (HttpRequest, UserProfile, int, Text) -> HttpResponse
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# access_message will throw a JsonableError exception if the user
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# cannot see the message (e.g. for messages to private streams).
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message, user_message = access_message(user_profile, message_id)
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check_valid_emoji(message.sender.realm, emoji_name)
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# We could probably just make this check be a try/except for the
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# IntegrityError from it already existing, but this is a bit cleaner.
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if Reaction.objects.filter(user_profile=user_profile,
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message=message,
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emoji_name=emoji_name).exists():
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raise JsonableError(_("Reaction already exists"))
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if user_message is None:
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# Users can see and react to messages sent to streams they
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# were not a subscriber to; in order to receive events for
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# those, we give the user a `historical` UserMessage objects
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# for the message. This is the same trick we use for starring
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# messages.
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UserMessage.objects.create(user_profile=user_profile,
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message=message,
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flags=UserMessage.flags.historical | UserMessage.flags.read)
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do_add_reaction(user_profile, message, emoji_name)
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return json_success()
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@has_request_variables
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def remove_reaction_backend(request, user_profile, message_id, emoji_name):
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# type: (HttpRequest, UserProfile, int, Text) -> HttpResponse
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# access_message will throw a JsonableError exception if the user
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# cannot see the message (e.g. for messages to private streams).
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message = access_message(user_profile, message_id)[0]
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check_valid_emoji(message.sender.realm, emoji_name)
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# We could probably just make this check be a try/except for the
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# IntegrityError from it already existing, but this is a bit cleaner.
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if not Reaction.objects.filter(user_profile=user_profile,
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message=message,
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emoji_name=emoji_name).exists():
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raise JsonableError(_("Reaction does not exist"))
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do_remove_reaction(user_profile, message, emoji_name)
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return json_success()
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