Files
ComfyUI-Lora-Manager/tests/middleware/test_csp_middleware.py
Will Miao 74bfd397aa feat: add CSP middleware to allow remote media previews, fixes #710, see #715
Introduce `relax_csp_for_remote_media` middleware that modifies Content Security Policy headers to permit loading media from trusted external domains (Civitai and Genur). This is necessary for LoRA Manager UI previews when ComfyUI runs with `--disable-api-nodes`, which otherwise blocks remote images and videos. The middleware is inserted after ComfyUI's `block_external_middleware` to properly extend the restrictive CSP header.
2025-12-09 10:37:35 +08:00

70 lines
2.3 KiB
Python

import pytest
from aiohttp import web
from aiohttp.test_utils import make_mocked_request
from py.middleware.csp_middleware import REMOTE_MEDIA_SOURCES, relax_csp_for_remote_media
DEFAULT_CSP = (
"default-src 'self'; "
"script-src 'self' 'unsafe-inline' 'unsafe-eval' blob:; "
"style-src 'self' 'unsafe-inline'; "
"img-src 'self' data: blob:; "
"font-src 'self'; "
"connect-src 'self'; "
"frame-src 'self'; "
"object-src 'self';"
)
def _parse_directives(header: str) -> dict[str, list[str]]:
directives: dict[str, list[str]] = {}
for raw_directive in header.split(";"):
directive = raw_directive.strip()
if not directive:
continue
name, *values = directive.split()
directives[name] = values
return directives
async def _invoke_middleware(
path: str, response: web.Response, csp_header: str | None = DEFAULT_CSP
) -> web.Response:
async def handler(_request: web.Request) -> web.Response:
if csp_header is not None:
response.headers["Content-Security-Policy"] = csp_header
return response
request = make_mocked_request("GET", path)
return await relax_csp_for_remote_media(request, handler)
@pytest.mark.asyncio
async def test_relax_csp_appends_remote_sources_and_preserves_existing_directives() -> None:
response = await _invoke_middleware("/some-path", web.Response())
header_value = response.headers.get("Content-Security-Policy")
assert header_value is not None
directives = _parse_directives(header_value)
# Existing directives remain intact
assert directives["script-src"] == ["'self'", "'unsafe-inline'", "'unsafe-eval'", "blob:"]
assert directives["img-src"][:3] == ["'self'", "data:", "blob:"]
# Remote media hosts are added once to the relevant directives
for source in REMOTE_MEDIA_SOURCES:
assert source in directives["img-src"]
assert "media-src" in directives
assert directives["media-src"][0] == "'self'"
for source in REMOTE_MEDIA_SOURCES:
assert source in directives["media-src"]
@pytest.mark.asyncio
async def test_relax_csp_no_header_left_untouched() -> None:
response = await _invoke_middleware("/no-csp", web.Response(), csp_header=None)
assert "Content-Security-Policy" not in response.headers
assert response.headers.get("X-Test") is None