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298e23b447
If a realm is configured to allow any user to upload an emoji, then, an emoji author must be allowed to delete an emoji uploaded by them.
61 lines
2.1 KiB
Python
61 lines
2.1 KiB
Python
from __future__ import absolute_import
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import os
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import re
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from django.utils.translation import ugettext as _
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from typing import Optional, Text
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from zerver.lib.bugdown import name_to_codepoint
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from zerver.lib.request import JsonableError
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from zerver.lib.upload import upload_backend
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from zerver.models import Realm, RealmEmoji, UserProfile
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def check_valid_emoji(realm, emoji_name):
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# type: (Realm, Text) -> None
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if emoji_name in set(realm.get_emoji().keys()):
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return
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if emoji_name in name_to_codepoint:
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return
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if emoji_name == 'zulip':
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return
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raise JsonableError(_("Emoji '%s' does not exist" % (emoji_name,)))
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def check_emoji_admin(user_profile, emoji_name=None):
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# type: (UserProfile, Optional[Text]) -> None
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"""Raises an exception if the user cannot administer the target realm
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emoji name in their organization."""
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# Realm administrators can always administer emoji
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if user_profile.is_realm_admin:
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return
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if user_profile.realm.add_emoji_by_admins_only:
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raise JsonableError(_("Must be a realm administrator"))
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# Otherwise, normal users can add emoji
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if emoji_name is None:
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return
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# Additionally, normal users can remove emoji they themselves added
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emoji = RealmEmoji.objects.filter(name=emoji_name).first()
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current_user_is_author = (emoji is not None and
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emoji.author is not None and
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emoji.author.id == user_profile.id)
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if not user_profile.is_realm_admin and not current_user_is_author:
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raise JsonableError(_("Must be a realm administrator or emoji author"))
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def check_valid_emoji_name(emoji_name):
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# type: (Text) -> None
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if re.match('^[0-9a-z.\-_]+(?<![.\-_])$', emoji_name):
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return
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raise JsonableError(_("Invalid characters in emoji name"))
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def get_emoji_url(emoji_file_name, realm_id):
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# type: (Text, int) -> Text
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return upload_backend.get_emoji_url(emoji_file_name, realm_id)
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def get_emoji_file_name(emoji_file_name, emoji_name):
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# type: (Text, Text) -> Text
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_, image_ext = os.path.splitext(emoji_file_name)
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return ''.join((emoji_name, image_ext))
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