Initial: Homelab Butler API proxy

app.py

@@ -0,0 +1,157 @@
+"""Homelab Butler – Unified API proxy for Pfannkuchen homelab."""
+
+import os, json, httpx
+from fastapi import FastAPI, Request, HTTPException, Depends
+from fastapi.responses import JSONResponse
+
+app = FastAPI(title="Homelab Butler", version="1.0.0")
+
+API_DIR = os.environ.get("API_KEY_DIR", "/data/api")
+BUTLER_TOKEN = os.environ.get("BUTLER_TOKEN", "")
+
+# --- Credential loading ---
+
+def _read(name):
+    try:
+        return open(f"{API_DIR}/{name}").read().strip()
+    except FileNotFoundError:
+        return None
+
+def _parse_kv(name):
+    """Parse key-value files like proxmox, authentik."""
+    raw = _read(name)
+    if not raw:
+        return {}
+    d = {}
+    for line in raw.splitlines():
+        if ":" in line:
+            k, v = line.split(":", 1)
+            d[k.strip().lower()] = v.strip()
+    return d
+
+def _parse_url_key(name):
+    """Parse files with URL on line 1, key on line 2 (radarr1080p, sonarr1080p)."""
+    raw = _read(name)
+    if not raw:
+        return None, None
+    lines = [l.strip() for l in raw.splitlines() if l.strip()]
+    return (lines[0] if lines else None, lines[1] if len(lines) > 1 else None)
+
+# --- Service configs ---
+
+SERVICES = {
+    "dockhand":    {"url": "http://10.4.1.116:3000", "auth": "session"},
+    "sonarr":      {"url": "http://10.2.1.100:8989",  "auth": "apikey", "key_file": "sonarr"},
+    "sonarr1080p": {"url": None,                       "auth": "apikey_urlfile", "key_file": "sonarr1080p"},
+    "radarr":      {"url": "http://10.2.1.100:7878",  "auth": "apikey", "key_file": "radarr"},
+    "radarr1080p": {"url": None,                       "auth": "apikey_urlfile", "key_file": "radarr1080p"},
+    "seerr":       {"url": "http://10.2.1.100:5055",  "auth": "apikey", "key_file": "seer"},
+    "outline":     {"url": "http://10.1.1.100:3000",  "auth": "bearer", "key_file": "outline"},
+    "n8n":         {"url": "http://10.4.1.113:5678",  "auth": "bearer", "key_file": "n8n"},
+    "proxmox":     {"url": "https://10.5.85.11:8006", "auth": "proxmox"},
+    "homeassistant": {"url": "http://10.10.1.20:8123","auth": "bearer", "key_file": "homeassistent"},
+    "grafana":     {"url": "http://10.1.1.111:3000",  "auth": "bearer", "key_file": "grafana"},
+    "uptime":      {"url": "http://159.69.245.190:3001", "auth": "bearer", "key_file": "uptime"},
+}
+
+# --- Session cache for Dockhand ---
+
+_dockhand_cookie = None
+
+async def _dockhand_login(client):
+    global _dockhand_cookie
+    r = await client.post(
+        f"{SERVICES['dockhand']['url']}/api/auth/login",
+        json={"username": "admin", "password": _read("dockhand") or ""},
+    )
+    if r.status_code == 200:
+        _dockhand_cookie = dict(r.cookies)
+    return _dockhand_cookie
+
+# --- Auth helper ---
+
+def _verify(request: Request):
+    if not BUTLER_TOKEN:
+        return
+    auth = request.headers.get("authorization", "")
+    if auth != f"Bearer {BUTLER_TOKEN}":
+        raise HTTPException(401, "Invalid token")
+
+# --- Routes ---
+
+@app.get("/")
+async def root():
+    return {"service": "homelab-butler", "version": "1.0.0", "services": list(SERVICES.keys())}
+
+@app.get("/health")
+async def health():
+    return {"status": "ok"}
+
+@app.api_route("/{service}/{path:path}", methods=["GET", "POST", "PUT", "DELETE", "PATCH"])
+async def proxy(service: str, path: str, request: Request, _=Depends(_verify)):
+    cfg = SERVICES.get(service)
+    if not cfg:
+        raise HTTPException(404, f"Unknown service: {service}. Available: {list(SERVICES.keys())}")
+
+    base_url = cfg["url"]
+    auth_type = cfg["auth"]
+    headers = dict(request.headers)
+    cookies = {}
+
+    # Remove hop-by-hop headers
+    for h in ["host", "content-length", "transfer-encoding"]:
+        headers.pop(h, None)
+
+    # Build auth
+    if auth_type == "apikey":
+        key = _read(cfg["key_file"])
+        headers["X-Api-Key"] = key or ""
+
+    elif auth_type == "apikey_urlfile":
+        url, key = _parse_url_key(cfg["key_file"])
+        base_url = url.rstrip("/") if url else ""
+        headers["X-Api-Key"] = key or ""
+
+    elif auth_type == "bearer":
+        key = _read(cfg["key_file"])
+        headers["Authorization"] = f"Bearer {key}"
+
+    elif auth_type == "proxmox":
+        pv = _parse_kv("proxmox")
+        headers["Authorization"] = f"PVEAPIToken={pv.get('tokenid', '')}={pv.get('secret', '')}"
+
+    elif auth_type == "session":
+        global _dockhand_cookie
+        if not _dockhand_cookie:
+            async with httpx.AsyncClient(verify=False) as c:
+                await _dockhand_login(c)
+        cookies = _dockhand_cookie or {}
+
+    target = f"{base_url}/{path}"
+    body = await request.body()
+
+    async with httpx.AsyncClient(verify=False, timeout=30.0) as client:
+        resp = await client.request(
+            method=request.method,
+            url=target,
+            headers=headers,
+            cookies=cookies,
+            content=body,
+        )
+
+        # Dockhand session expired? Re-login once.
+        if auth_type == "session" and resp.status_code == 401:
+            _dockhand_cookie = None
+            await _dockhand_login(client)
+            cookies = _dockhand_cookie or {}
+            resp = await client.request(
+                method=request.method, url=target,
+                headers=headers, cookies=cookies, content=body,
+            )
+
+    try:
+        data = resp.json()
+    except Exception:
+        data = resp.text
+
+    return JSONResponse(content=data, status_code=resp.status_code)