fastapi-gsap/gsap_broker/intune/graph_client.py
Tyler J King 1ab47417c9 refactor: extract shared Graph API client from Entra registrar
Creates gsap_broker/intune/graph_client.py with MSAL
client_credentials auth and typed Graph API methods.
Entra registrar refactored to consume the shared client.

Signed-off-by: Tyler King <tking@guildhouse.dev>
2026-04-14 05:16:09 -04:00

103 lines
3.5 KiB
Python

# Copyright 2026 Guildhouse Dev
# SPDX-License-Identifier: Apache-2.0
"""Shared Microsoft Graph API client.
Uses MSAL client_credentials flow for app-only access.
Provides authenticated httpx calls to Graph API endpoints.
Extracted from delegations/registrars/entra.py to serve
both the Entra registrar and the Intune connector.
"""
import logging
from typing import Any, Optional
import httpx
import msal
logger = logging.getLogger(__name__)
GRAPH_API_DEFAULT = "https://graph.microsoft.com/v1.0"
class GraphClient:
"""Authenticated Microsoft Graph API client."""
def __init__(
self,
tenant_id: str,
client_id: str,
client_secret: str,
graph_api_base: str = GRAPH_API_DEFAULT,
):
self.tenant_id = tenant_id
self.client_id = client_id
self.client_secret = client_secret
self.graph_api_base = graph_api_base.rstrip("/")
self._app = msal.ConfidentialClientApplication(
client_id=self.client_id,
client_credential=self.client_secret,
authority=f"https://login.microsoftonline.com/{self.tenant_id}",
)
async def acquire_token(self) -> str:
"""Acquire an access token via MSAL client_credentials."""
result = self._app.acquire_token_for_client(
scopes=["https://graph.microsoft.com/.default"]
)
if "access_token" in result:
return result["access_token"]
raise RuntimeError(
f"Graph token error: {result.get('error_description', result.get('error', 'unknown'))}"
)
async def _headers(self) -> dict[str, str]:
token = await self.acquire_token()
return {
"Authorization": f"Bearer {token}",
"Content-Type": "application/json",
}
async def get(
self, path: str, params: Optional[dict[str, Any]] = None
) -> dict[str, Any]:
"""Authenticated GET to Graph API."""
headers = await self._headers()
async with httpx.AsyncClient(timeout=15.0) as client:
resp = await client.get(
f"{self.graph_api_base}{path}", params=params, headers=headers
)
resp.raise_for_status()
return resp.json()
async def post(
self, path: str, body: Optional[dict[str, Any]] = None
) -> httpx.Response:
"""Authenticated POST to Graph API. Returns raw Response for status/header access."""
headers = await self._headers()
async with httpx.AsyncClient(timeout=15.0) as client:
resp = await client.post(
f"{self.graph_api_base}{path}", json=body, headers=headers
)
return resp
async def patch(
self, path: str, body: Optional[dict[str, Any]] = None
) -> dict[str, Any]:
"""Authenticated PATCH to Graph API."""
headers = await self._headers()
async with httpx.AsyncClient(timeout=15.0) as client:
resp = await client.patch(
f"{self.graph_api_base}{path}", json=body, headers=headers
)
resp.raise_for_status()
return resp.json()
async def delete(self, path: str) -> bool:
"""Authenticated DELETE to Graph API. Returns True if 200/204."""
headers = await self._headers()
async with httpx.AsyncClient(timeout=15.0) as client:
resp = await client.delete(
f"{self.graph_api_base}{path}", headers=headers
)
return resp.status_code in (200, 204)