mirror of https://github.com/zulip/zulip.git
24 lines
965 B
Python
24 lines
965 B
Python
from django.conf import settings
|
|
from django.shortcuts import redirect
|
|
from django.utils.translation import ugettext as _
|
|
from django.http import (
|
|
HttpRequest, HttpResponse, HttpResponseForbidden, HttpResponseNotFound
|
|
)
|
|
from zerver.lib.camo import is_camo_url_valid
|
|
from zerver.lib.thumbnail import generate_thumbnail_url
|
|
|
|
import codecs
|
|
|
|
def handle_camo_url(request: HttpRequest, digest: str,
|
|
received_url: str) -> HttpResponse:
|
|
if not settings.THUMBOR_SERVES_CAMO:
|
|
return HttpResponseNotFound()
|
|
|
|
hex_encoded_url = received_url.encode('utf-8')
|
|
hex_decoded_url = codecs.decode(hex_encoded_url, 'hex')
|
|
original_url = hex_decoded_url.decode('utf-8') # type: ignore # https://github.com/python/typeshed/issues/300
|
|
if is_camo_url_valid(digest, original_url):
|
|
return redirect(generate_thumbnail_url(original_url, is_camo_url=True))
|
|
else:
|
|
return HttpResponseForbidden(_("<p>Not a valid URL.</p>"))
|