zulip/zerver/lib/emoji.py

43 lines
1.4 KiB
Python

from __future__ import absolute_import
import os
import re
from django.utils.translation import ugettext as _
from typing import Text
from zerver.lib.bugdown import name_to_codepoint
from zerver.lib.request import JsonableError
from zerver.lib.upload import upload_backend
from zerver.models import Realm, UserProfile
def check_valid_emoji(realm, emoji_name):
# type: (Realm, Text) -> None
if emoji_name in set(realm.get_emoji().keys()):
return
if emoji_name in name_to_codepoint:
return
if emoji_name == 'zulip':
return
raise JsonableError(_("Emoji '%s' does not exist" % (emoji_name,)))
def check_emoji_admin(user_profile):
# type: (UserProfile) -> None
if user_profile.realm.add_emoji_by_admins_only and not user_profile.is_realm_admin:
raise JsonableError(_("Must be a realm administrator"))
def check_valid_emoji_name(emoji_name):
# type: (Text) -> None
if re.match('^[0-9a-z.\-_]+(?<![.\-_])$', emoji_name):
return
raise JsonableError(_("Invalid characters in emoji name"))
def get_emoji_url(emoji_file_name, realm_id):
# type: (Text, int) -> Text
return upload_backend.get_emoji_url(emoji_file_name, realm_id)
def get_emoji_file_name(emoji_file_name, emoji_name):
# type: (Text, Text) -> Text
_, image_ext = os.path.splitext(emoji_file_name)
return ''.join((emoji_name, image_ext))