giles
1a74d811f7
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Merges full history from art-dag/mono.git into the monorepo under the artdag/ directory. Contains: core (DAG engine), l1 (Celery rendering server), l2 (ActivityPub registry), common (shared templates/middleware), client (CLI), test (e2e). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> git-subtree-dir: artdag git-subtree-mainline:1a179de547git-subtree-split:4c2e716558
107 lines
2.7 KiB
Python
107 lines
2.7 KiB
Python
"""
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L2 Server Dependency Injection.
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Provides common dependencies for routes.
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"""
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from typing import Optional
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from fastapi import Request, HTTPException, Depends
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from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
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from .config import settings
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security = HTTPBearer(auto_error=False)
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def get_templates(request: Request):
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"""Get Jinja2 templates from app state."""
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return request.app.state.templates
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async def _verify_opaque_grant(token: str) -> Optional[dict]:
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"""Verify an opaque grant token via account server."""
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import httpx
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if not settings.internal_account_url:
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return None
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verify_url = f"{settings.internal_account_url.rstrip('/')}/auth/internal/verify-grant"
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try:
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async with httpx.AsyncClient(timeout=5.0) as client:
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resp = await client.get(verify_url, params={"token": token})
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if resp.status_code != 200:
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return None
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data = resp.json()
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if not data.get("valid"):
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return None
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except Exception:
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return None
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username = data.get("username", "")
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return {
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"username": username,
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"actor_id": f"https://{settings.domain}/users/{username}",
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"token": token,
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"sub": username,
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}
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async def get_current_user(request: Request) -> Optional[dict]:
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"""
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Get current user from cookie or header.
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Returns user dict or None if not authenticated.
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"""
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from auth import verify_token, get_token_claims
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# Try cookie first
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token = request.cookies.get("auth_token")
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# Try Authorization header
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if not token:
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auth_header = request.headers.get("Authorization", "")
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if auth_header.startswith("Bearer "):
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token = auth_header[7:]
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if not token:
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return None
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# Verify JWT token
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username = verify_token(token)
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if username:
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claims = get_token_claims(token)
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if claims:
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return {
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"username": username,
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"actor_id": f"https://{settings.domain}/users/{username}",
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"token": token,
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**claims,
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}
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# JWT failed — try as opaque grant token
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return await _verify_opaque_grant(token)
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async def require_auth(request: Request) -> dict:
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"""
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Require authentication.
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Raises HTTPException 401 if not authenticated.
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"""
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user = await get_current_user(request)
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if not user:
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raise HTTPException(401, "Authentication required")
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return user
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def get_user_from_cookie(request: Request) -> Optional[str]:
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"""Get username from cookie (for HTML pages)."""
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from auth import verify_token
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token = request.cookies.get("auth_token")
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if not token:
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return None
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return verify_token(token)
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