change to env var config

packages/server/src/middlewares/DoorAuthModes.ts

@@ -1,13 +1,35 @@
-import { RequestHandler } from "express";
+import { Request, RequestHandler } from "express";
 import { getRedisClient } from "../clients/db/RedisDbProvider";
+import { getAuthModes, getDoorSettingString } from "../util/EnvConfigUtil";
+import { IAuthMode } from "../types/IAuthMode";
+import { IDoorConfig } from "../types/IDoorConfig";
 
 const client = await getRedisClient();
 
-export const ValidQueryParamAuth: RequestHandler = async (req, res, next) => {
-  if (req.query['key'] !== Bun.env.DOOR_FIXED_PIN) {
-    res.status(401).json({ msg: "Unauthorized" });
+export const HandleAuthMode: RequestHandler = async (req, res, next) => {
+  const authModes = getAuthModes(req.params.id);
+
+  if (authModes.length === 0) {
+    res.status(404).json({ msg: `Unknown door ${req.params.id}` });
+    return;
+  }
+
+  const isAuthorized = authModes.some((mode) => {
+    switch(mode) {
+      case IAuthMode.FIXED_PIN: return handleFixedPinAuth(req)
+      default: return false;
+    }
+  });
+
+  if (!isAuthorized) {
+    res.status(401).json({ msg: 'Unauthorized' });
     return;
   }
 
   next();
-};
+}
+
+const handleFixedPinAuth = (req: Request): boolean => {
+  const fixedPin = getDoorSettingString(req.params.id, IDoorConfig.FIXED_PIN);
+  return fixedPin !== undefined && req.query['key'] === fixedPin;
+}

packages/server/src/routers/DoorRouter.ts

@@ -1,7 +1,9 @@
 import express from "express";
 import { getRedisClient } from "../clients/db/RedisDbProvider";
 import { doorStatusKey } from "../types/RedisKeys";
-import { ValidQueryParamAuth } from "../middlewares/DoorAuthModes";
+import { HandleAuthMode } from "../middlewares/DoorAuthModes";
+import { getDoorSettingNumber, getDoorSettingString } from "../util/EnvConfigUtil";
+import { IDoorConfig } from "../types/IDoorConfig";
 
 const router = express.Router();
 const client = await getRedisClient();
@@ -12,6 +14,10 @@ router.get('/:id/status', async(req, res) => {
   if (isOpen) {
     const fingerprint = JSON.parse(isOpen);
     res.status(200).json({ status: 'open', fingerprint });
+
+    if (getDoorSettingString(req.params.id, IDoorConfig.CLOSE_AFTER_POLL)) {
+      await client.remove(doorStatusKey(req.params.id));
+    }
     return;
   }
 
@@ -23,14 +29,16 @@ router.delete('/:id/status', async(req, res) => {
   res.status(200).json({ msg: `Closed the door ${req.params.id}` });
 });
 
-router.all('/:id/auth', ValidQueryParamAuth, async(req, res) => {
+router.all('/:id/auth', HandleAuthMode, async(req, res) => {
   const statusKey = doorStatusKey(req.params.id);
 
   const fingerprint = (req as any).fingerprint;
 
+  const timeout = getDoorSettingNumber(req.params.id, IDoorConfig.OPEN_TIMEOUT) || 60;
+
   await client.put(statusKey, JSON.stringify(fingerprint));
-  await client.getClient().expire(statusKey, Bun.env.DOOR_OPEN_TIMEOUT);
-  res.status(200).json({ msg: `Opened the door "${req.params.id}" for ${Bun.env.DOOR_OPEN_TIMEOUT}s` });
+  await client.getClient().expire(statusKey, timeout);
+  res.status(200).json({ msg: `Opened the door "${req.params.id}" for ${timeout}s` });
 });
 
 export default router;

packages/server/src/types/IAuthMode.ts

@@ -0,0 +1,3 @@
+export enum IAuthMode {
+  FIXED_PIN = "FIXED_PIN",
+}

packages/server/src/types/IDoorConfig.ts

@@ -0,0 +1,6 @@
+export enum IDoorConfig {
+  AUTH_MODES = "AUTH_MODES",
+  OPEN_TIMEOUT = "OPEN_TIMEOUT",
+  FIXED_PIN = "FIXED_PIN",
+  CLOSE_AFTER_POLL="CLOSE_AFTER_POLL",
+}

packages/server/src/util/EnvConfigUtil.ts

@@ -0,0 +1,24 @@
+import { IAuthMode } from "../types/IAuthMode";
+import { IDoorConfig } from "../types/IDoorConfig";
+
+const doorToEnv = (door: string): string => {
+  return door.toUpperCase().replaceAll(' ', '_').replaceAll('-', '_');
+};
+
+export const getAuthModes = (door: string): IAuthMode[] => {
+  const config = getDoorSettingString(door, IDoorConfig.AUTH_MODES);
+
+  if (config) {
+    return JSON.parse(config);
+  }
+
+  return [];
+};
+
+export const getDoorSettingString = (door: string, setting: IDoorConfig): string | undefined => {
+  return Bun.env[`${setting}_${doorToEnv(door)}`];
+};
+
+export const getDoorSettingNumber = (door: string, setting: IDoorConfig): number => {
+  return parseInt(getDoorSettingString(door, setting) || "0");
+};