Files
vmis/backend/app/services/keycloak_client.py
VMIS Developer 42d1420f9c feat(backend): Phase 1-4 全新開發完成,37/37 TDD 通過
[Phase 0 Reset]
- 清除舊版 app/、alembic/versions/、雜亂測試腳本
- 新 requirements.txt (移除 caldav/redis/keycloak-lib,加入 apscheduler/croniter/docker/paramiko/ping3/dnspython)

[Phase 1 資料庫]
- 9 張資料表 SQLAlchemy Models:tenants / accounts / schedules / schedule_logs /
  tenant_schedule_results / account_schedule_results / servers / server_status_logs / system_status_logs
- Alembic migration 001_create_all_tables (已套用到 10.1.0.20:5433/virtual_mis)
- seed.py:schedules 初始 3 筆 / servers 初始 4 筆

[Phase 2 CRUD API]
- GET/POST/PUT/DELETE: /api/v1/tenants / accounts / servers / schedules
- /api/v1/system-status
- 帳號編碼自動產生 (prefix + seq_no 4碼左補0)
- 燈號 (lights) 從最新排程結果取得

[Phase 3 Watchdog]
- APScheduler interval 3分鐘,原子 UPDATE status=Going 防重複執行
- 手動觸發 API: POST /api/v1/schedules/{id}/run

[Phase 4 Service Clients]
- KeycloakClient:vmis-admin realm,REST API (不用 python-keycloak)
- MailClient:Docker Mailserver @ 10.1.0.254:8080,含 MX DNS 驗證
- DockerClient:docker-py 本機 + paramiko SSH 遠端 compose
- NextcloudClient:OCS API user/quota
- SystemChecker:功能驗證 (traefik routers>0 / keycloak token / SMTP EHLO / DB SELECT 1 / ping)

[TDD]
- 37 tests / 37 passed (2.11s)
- SQLite in-memory + StaticPool,無需外部 DB

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-14 13:10:15 +08:00

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"""
KeycloakClient — 直接呼叫 Keycloak REST API不使用 python-keycloak 套件。
管理租戶 realm 及帳號的建立/查詢。
"""
import logging
from typing import Optional
import httpx
from app.core.config import settings
logger = logging.getLogger(__name__)
TIMEOUT = 10.0
class KeycloakClient:
def __init__(self):
self._base = settings.KEYCLOAK_URL.rstrip("/")
self._admin_token: Optional[str] = None
def _get_admin_token(self) -> str:
"""取得 vmis-admin realm 的 admin access token"""
url = f"{self._base}/realms/{settings.KEYCLOAK_ADMIN_REALM}/protocol/openid-connect/token"
resp = httpx.post(
url,
data={
"grant_type": "client_credentials",
"client_id": settings.KEYCLOAK_ADMIN_CLIENT_ID,
"client_secret": settings.KEYCLOAK_ADMIN_CLIENT_SECRET,
},
timeout=TIMEOUT,
)
resp.raise_for_status()
return resp.json()["access_token"]
def _headers(self) -> dict:
if not self._admin_token:
self._admin_token = self._get_admin_token()
return {"Authorization": f"Bearer {self._admin_token}"}
def _admin_url(self, path: str) -> str:
return f"{self._base}/admin/realms/{path}"
def realm_exists(self, realm: str) -> bool:
try:
resp = httpx.get(self._admin_url(realm), headers=self._headers(), timeout=TIMEOUT)
return resp.status_code == 200
except Exception:
return False
def create_realm(self, realm: str, display_name: str) -> bool:
payload = {
"realm": realm,
"displayName": display_name,
"enabled": True,
"loginTheme": "keycloak",
}
resp = httpx.post(
f"{self._base}/admin/realms",
json=payload,
headers=self._headers(),
timeout=TIMEOUT,
)
return resp.status_code in (201, 204)
def get_user_uuid(self, realm: str, username: str) -> Optional[str]:
resp = httpx.get(
self._admin_url(f"{realm}/users"),
params={"username": username, "exact": "true"},
headers=self._headers(),
timeout=TIMEOUT,
)
resp.raise_for_status()
users = resp.json()
return users[0]["id"] if users else None
def create_user(self, realm: str, username: str, email: str, password: Optional[str]) -> Optional[str]:
payload = {
"username": username,
"email": email,
"enabled": True,
"emailVerified": True,
}
if password:
payload["credentials"] = [{"type": "password", "value": password, "temporary": True}]
resp = httpx.post(
self._admin_url(f"{realm}/users"),
json=payload,
headers=self._headers(),
timeout=TIMEOUT,
)
if resp.status_code == 201:
location = resp.headers.get("Location", "")
return location.rstrip("/").split("/")[-1]
return None