security: remove hardcoded secrets, add health endpoint, add security headers

dashboard/backend/config.py

@@ -7,13 +7,12 @@ DOCKER_HOST = os.environ.get("DOCKER_HOST", "tcp://docker-socket-proxy:2375")
 VOLUME_ROOT = os.environ.get("VOLUME_ROOT", "/volume1")
 
 # Auth
-SECRET_KEY = os.environ.get("SECRET_KEY", "c1a776b228421830e7c7df0887adc75f74bac65aaa1fc364be96861b1f8c8701")
+SECRET_KEY = os.environ.get("SECRET_KEY", "")
 ALGORITHM = "HS256"
 ACCESS_TOKEN_EXPIRE_MINUTES = 60 * 24 * 7  # 7 days
 ADMIN_USER = os.environ.get("ADMIN_USER", "admin")
-# Default hash for "admin" using pbkdf2_sha256 scheme to avoid bcrypt compat issues
-ADMIN_PASSWORD_HASH = os.environ.get("ADMIN_PASSWORD_HASH", "$pbkdf2-sha256$29000$25tTKoUQIgQghLC2ds4ZYw$H/fCb3H5wmOkwj6l6KrVlmns0TWfzKPOrG3sgVDR.eg")
-TOTP_SECRET = os.environ.get("TOTP_SECRET", "JBSWY3DPEHPK3PXP") # Base32 encoded secretans 2FA disabled by default
+ADMIN_PASSWORD_HASH = os.environ.get("ADMIN_PASSWORD_HASH", "")
+TOTP_SECRET = os.environ.get("TOTP_SECRET", "")
 
 # SSH terminal
 SSH_HOST = os.environ.get("SSH_HOST", "host.docker.internal")
@@ -27,3 +26,4 @@ VPS_SSH_KEY_PATH = os.environ.get("VPS_SSH_KEY_PATH", "/app/ssh/vps_id_ed25519")
 # Telegram notifications
 TELEGRAM_BOT_TOKEN = os.environ.get("TELEGRAM_BOT_TOKEN", "")
 TELEGRAM_CHAT_ID = os.environ.get("TELEGRAM_CHAT_ID", "")
+TELEGRAM_PROXY = os.environ.get("TELEGRAM_PROXY", "")

dashboard/backend/main.py

@@ -43,6 +43,11 @@ async def monitor_containers():
 @app.on_event("startup")
 async def startup_event():
     asyncio.create_task(monitor_containers())
+
+@app.get("/api/health")
+async def health():
+    return {"status": "ok"}
+
 # Public auth endpoints
 app.include_router(auth.router, prefix="/api/auth", tags=["auth"])
 

dashboard/backend/routers/auth.py

@@ -1,5 +1,8 @@
 from datetime import timedelta
-from fastapi import APIRouter, Depends, HTTPException, status
+import asyncio
+import os
+import httpx
+from fastapi import APIRouter, Depends, HTTPException, status, Request
 from pydantic import BaseModel
 import config
 import auth
@@ -26,10 +29,33 @@ class Verify2FARequest(BaseModel):
     secret: str
     code: str
 
+async def send_failed_login_alert(ip_address: str, username: str, reason: str):
+    print(f"Triggering Telegram alert for {username} from {ip_address}: {reason}", flush=True)
+    if not config.TELEGRAM_BOT_TOKEN or not config.TELEGRAM_CHAT_ID:
+        print("Skipping Telegram alert: missing config", flush=True)
+        return
+    msg = f"🚨 *Dashboard Security Alert* 🚨\nFailed login attempt detected.\n\n👤 User: `{username}`\n🌐 IP: `{ip_address}`\n❌ Reason: {reason}"
+    try:
+        if config.TELEGRAM_PROXY:
+            os.environ["HTTP_PROXY"] = config.TELEGRAM_PROXY
+            os.environ["HTTPS_PROXY"] = config.TELEGRAM_PROXY
+        
+        async with httpx.AsyncClient() as client:
+            res = await client.post(
+                f"https://api.telegram.org/bot{config.TELEGRAM_BOT_TOKEN}/sendMessage",
+                data={"chat_id": config.TELEGRAM_CHAT_ID, "text": msg, "parse_mode": "Markdown"},
+                timeout=10.0
+            )
+            print(f"Telegram alert sent, status: {res.status_code}", flush=True)
+    except Exception as e:
+        print(f"Failed to send Telegram alert: {e}", flush=True)
+
 @router.post("/login", response_model=Token)
-async def login(creds: LoginRequest):
+async def login(creds: LoginRequest, request: Request):
+    client_ip = request.client.host
     # Verify username/password
     if creds.username != config.ADMIN_USER or not auth.verify_password(creds.password, auth.load_password_hash()):
+        asyncio.create_task(send_failed_login_alert(client_ip, creds.username, "Incorrect username or password"))
         raise HTTPException(
             status_code=status.HTTP_401_UNAUTHORIZED,
             detail="Incorrect username or password",
@@ -40,13 +66,15 @@ async def login(creds: LoginRequest):
     totp_secret = auth.load_totp_secret()
     if totp_secret:
         if not creds.totp_code:
+            asyncio.create_task(send_failed_login_alert(client_ip, creds.username, "Missing 2FA Code"))
             raise HTTPException(
                 status_code=status.HTTP_403_FORBIDDEN,
                 detail="2FA code required",
                 headers={"WWW-Authenticate": "Bearer"},
             )
         if not auth.verify_totp(creds.totp_code, totp_secret):
-             raise HTTPException(
+            asyncio.create_task(send_failed_login_alert(client_ip, creds.username, "Invalid 2FA Code"))
+            raise HTTPException(
                 status_code=status.HTTP_401_UNAUTHORIZED,
                 detail="Invalid 2FA code",
                 headers={"WWW-Authenticate": "Bearer"},