zulip/zerver/lib/thumbnail.py

25 lines
664 B
Python

import os
import sys
from urllib.parse import urljoin
from django.utils.http import url_has_allowed_host_and_scheme
ZULIP_PATH = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
sys.path.append(ZULIP_PATH)
from zerver.lib.camo import get_camo_url
def user_uploads_or_external(url: str) -> bool:
return not url_has_allowed_host_and_scheme(url, allowed_hosts=None) or url.startswith(
"/user_uploads/"
)
def generate_thumbnail_url(path: str, size: str = "0x0") -> str:
path = urljoin("/", path)
if url_has_allowed_host_and_scheme(path, allowed_hosts=None):
return path
return get_camo_url(path)