Files
Business-Management/backend/app/routers/documents_proxy.py
T
curo1305 fec3953009 feat: category scopes, group-admin role, and permission model
- Three category scopes: personal / group / system (watch)
- PascalCase-with-dashes naming convention enforced at backend + frontend
- is_group_admin flag on GroupMembership; PATCH endpoint for admins to toggle it
- Categories router: scope-based list/create/rename/delete with _check_can_manage_cat
- Documents router: delete uses is_admin + can_delete share flag + group-admin check; remove_category requires doc ownership; assign_category accepts group/system categories
- Proxy layers inject x-user-is-admin and x-user-admin-groups headers
- Frontend: ManageCategoriesDialog grouped by scope with lock icons; SourcePanel scope picker + client-side name validation; AdminGroupsPage group-admin checkbox

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-18 22:16:49 +02:00

114 lines
3.7 KiB
Python

"""
Proxy all /api/documents/* requests to doc-service:8001/documents/*.
Uses a module-level AsyncClient for connection pooling.
Strips hop-by-hop headers that must not be forwarded.
Injects X-User-Id and X-User-Groups headers so the doc-service
can enforce ownership and group-sharing access without querying the
backend database directly.
"""
import os
import httpx
from fastapi import APIRouter, Depends, HTTPException, Request
from fastapi.responses import Response
from sqlalchemy import select
from sqlalchemy.ext.asyncio import AsyncSession
from app.database import get_db
from app.deps import get_current_user
from app.models.group import GroupMembership
from app.models.user import User
DOC_SERVICE_URL = os.environ.get("DOC_SERVICE_URL", "http://doc-service:8001")
_client = httpx.AsyncClient(base_url=DOC_SERVICE_URL, timeout=120.0)
router = APIRouter()
# Headers that must not be forwarded in either direction.
# Also strip accept-encoding so doc-service never compresses responses —
# httpx decompresses transparently but the content-encoding header would
# then mismatch the already-decompressed body we forward to the browser.
_HOP_BY_HOP = frozenset([
"connection",
"keep-alive",
"proxy-authenticate",
"proxy-authorization",
"te",
"trailers",
"transfer-encoding",
"upgrade",
"host",
"accept-encoding",
])
# Additional response headers we let FastAPI recalculate rather than forward.
# content-length is set automatically from the response body size.
# content-type is set via the media_type argument, so strip it from headers
# to avoid duplicates.
_STRIP_RESPONSE = frozenset([*_HOP_BY_HOP, "content-length", "content-type"])
async def _forward_headers(
request: Request, user_id: str, is_admin: bool, db: AsyncSession
) -> dict:
headers = {
k: v
for k, v in request.headers.items()
if k.lower() not in _HOP_BY_HOP
}
headers["x-user-id"] = user_id
headers["x-user-is-admin"] = "true" if is_admin else "false"
# Inject group memberships and group-admin status so the doc-service can
# evaluate ownership, sharing access, and group-admin permissions.
mem_result = await db.execute(
select(GroupMembership.group_id, GroupMembership.is_group_admin)
.where(GroupMembership.user_id == user_id)
)
rows = mem_result.all()
group_ids = [row[0] for row in rows]
admin_group_ids = [row[0] for row in rows if row[1]]
headers["x-user-groups"] = ",".join(group_ids)
headers["x-user-admin-groups"] = ",".join(admin_group_ids)
return headers
@router.api_route("", methods=["GET", "POST"])
@router.api_route("/{path:path}", methods=["GET", "POST", "PUT", "PATCH", "DELETE"])
async def proxy_documents(
request: Request,
current_user: User = Depends(get_current_user),
db: AsyncSession = Depends(get_db),
path: str = "",
) -> Response:
url = f"/documents/{path}" if path else "/documents"
headers = await _forward_headers(request, str(current_user.id), current_user.is_superuser, db)
body = await request.body()
try:
response = await _client.request(
method=request.method,
url=url,
headers=headers,
content=body,
params=dict(request.query_params),
)
except httpx.RequestError as exc:
raise HTTPException(status_code=502, detail=f"doc-service unreachable: {exc}")
resp_headers = {
k: v
for k, v in response.headers.items()
if k.lower() not in _STRIP_RESPONSE
}
return Response(
content=response.content,
status_code=response.status_code,
headers=resp_headers,
media_type=response.headers.get("content-type"),
)