mirror of https://github.com/zulip/zulip.git
61 lines
2.1 KiB
Python
61 lines
2.1 KiB
Python
from __future__ import absolute_import
|
|
|
|
import os
|
|
import re
|
|
|
|
from django.utils.translation import ugettext as _
|
|
from typing import Optional, 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, RealmEmoji, 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, emoji_name=None):
|
|
# type: (UserProfile, Optional[Text]) -> None
|
|
"""Raises an exception if the user cannot administer the target realm
|
|
emoji name in their organization."""
|
|
|
|
# Realm administrators can always administer emoji
|
|
if user_profile.is_realm_admin:
|
|
return
|
|
if user_profile.realm.add_emoji_by_admins_only:
|
|
raise JsonableError(_("Must be a realm administrator"))
|
|
|
|
# Otherwise, normal users can add emoji
|
|
if emoji_name is None:
|
|
return
|
|
|
|
# Additionally, normal users can remove emoji they themselves added
|
|
emoji = RealmEmoji.objects.filter(name=emoji_name).first()
|
|
current_user_is_author = (emoji is not None and
|
|
emoji.author is not None and
|
|
emoji.author.id == user_profile.id)
|
|
if not user_profile.is_realm_admin and not current_user_is_author:
|
|
raise JsonableError(_("Must be a realm administrator or emoji author"))
|
|
|
|
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))
|