Update auth and skeleton of wrapper

server/auth.js

@@ -36,20 +36,32 @@ exports.login = async function (username, password) {
     return null;
 };
 
+/**
+ * uk prefix + key ID is before _
+ * @param {string} key API Key
+ * @returns {{clear: string, index: string}} Parsed API key
+ */
+exports.parseAPIKey = function (key) {
+    let index = key.substring(2, key.indexOf("_"));
+    let clear = key.substring(key.indexOf("_") + 1, key.length);
+
+    return {
+        index,
+        clear,
+    };
+};
+
 /**
  * Validate a provided API key
  * @param {string} key API key to verify
- * @returns {boolean} API is ok?
+ * @returns {Promise<boolean>} API is ok?
  */
 async function verifyAPIKey(key) {
     if (typeof key !== "string") {
         return false;
     }
 
-    // uk prefix + key ID is before _
-    let index = key.substring(2, key.indexOf("_"));
-    let clear = key.substring(key.indexOf("_") + 1, key.length);
-
+    const { index, clear } = exports.parseAPIKey(key);
     let hash = await R.findOne("api_key", " id=? ", [ index ]);
 
     if (hash === null) {
@@ -65,6 +77,28 @@ async function verifyAPIKey(key) {
     return hash && passwordHash.verify(clear, hash.key);
 }
 
+/**
+ * @param {string} key API key to verify
+ * @returns {Promise<void>}
+ * @throws {Error} If API key is invalid or rate limit exceeded
+ */
+async function verifyAPIKeyWithRateLimit(key) {
+    const pass = await apiRateLimiter.pass(null, 0);
+    if (pass) {
+        await apiRateLimiter.removeTokens(1);
+        const valid = await verifyAPIKey(key);
+        if (!valid) {
+            const errMsg = "Failed API auth attempt: invalid API Key";
+            log.warn("api-auth", errMsg);
+            throw new Error(errMsg);
+        }
+    } else {
+        const errMsg = "Failed API auth attempt: rate limit exceeded";
+        log.warn("api-auth", errMsg);
+        throw new Error(errMsg);
+    }
+}
+
 /**
  * Callback for basic auth authorizers
  * @callback authCallback
@@ -80,22 +114,10 @@ async function verifyAPIKey(key) {
  * @returns {void}
  */
 function apiAuthorizer(username, password, callback) {
-    // API Rate Limit
-    apiRateLimiter.pass(null, 0).then((pass) => {
-        if (pass) {
-            verifyAPIKey(password).then((valid) => {
-                if (!valid) {
-                    log.warn("api-auth", "Failed API auth attempt: invalid API Key");
-                }
-                callback(null, valid);
-                // Only allow a set number of api requests per minute
-                // (currently set to 60)
-                apiRateLimiter.removeTokens(1);
-            });
-        } else {
-            log.warn("api-auth", "Failed API auth attempt: rate limit exceeded");
+    verifyAPIKeyWithRateLimit(password).then(() => {
+        callback(null, true);
+    }).catch(() => {
         callback(null, false);
-        }
     });
 }
 
@@ -163,3 +185,41 @@ exports.basicAuthMiddleware = async function (req, res, next) {
     });
     middleware(req, res, next);
 };
+
+// Get the API key from the header Authorization and verify it
+exports.headerAuthMiddleware = async function (req, res, next) {
+    const authorizationHeader = req.header("Authorization");
+
+    let key = null;
+
+    if (authorizationHeader && typeof authorizationHeader === "string") {
+        const arr = authorizationHeader.split(" ");
+        if (arr.length === 2) {
+            const type = arr[0];
+            if (type === "Bearer") {
+                key = arr[1];
+            }
+        }
+    }
+
+    if (key) {
+        try {
+            await verifyAPIKeyWithRateLimit(key);
+            res.locals.apiKeyID = exports.parseAPIKey(key).index;
+            next();
+        } catch (e) {
+            res.status(401);
+            res.json({
+                ok: false,
+                msg: e.message,
+            });
+        }
+    } else {
+        await apiRateLimiter.removeTokens(1);
+        res.status(401);
+        res.json({
+            ok: false,
+            msg: "No API Key provided, please provide an API Key in the \"Authorization\" header",
+        });
+    }
+};

server/routers/api-router.js

@@ -1,4 +1,4 @@
-let express = require("express");
+const express = require("express");
 const { allowDevAllOrigin, allowAllOrigin, percentageToColor, filterAndJoin, sendHttpError } = require("../util-server");
 const { R } = require("redbean-node");
 const apicache = require("../modules/apicache");
@@ -12,6 +12,10 @@ const { badgeConstants } = require("../config");
 const { Prometheus } = require("../prometheus");
 const Database = require("../database");
 const { UptimeCalculator } = require("../uptime-calculator");
+const ioClient = require("socket.io-client").io;
+const Socket = require("socket.io-client").Socket;
+const { headerAuthMiddleware } = require("../auth");
+const jwt = require("jsonwebtoken");
 
 let router = express.Router();
 
@@ -109,6 +113,117 @@ router.get("/api/push/:pushToken", async (request, response) => {
     }
 });
 
+/*
+ * Map Socket.io API to REST API
+ */
+router.post("/api", headerAuthMiddleware, async (request, response) => {
+    allowDevAllOrigin(response);
+    // TODO: Allow whitelist of origins
+
+    // Generate a JWT for logging in to the socket.io server
+    const apiKeyID = response.locals.apiKeyID;
+    const userID = await R.getCell("SELECT user_id FROM api_key WHERE id = ?", [ apiKeyID ]);
+    const username = await R.getCell("SELECT username FROM user WHERE id = ?", [ userID ]);
+    const token = jwt.sign({
+        username,
+    }, server.jwtSecret);
+
+    const requestData = request.body;
+
+    console.log(requestData);
+
+    // TODO: should not hard coded
+    let wsURL = "ws://localhost:3001";
+
+    const socket = ioClient(wsURL, {
+        transports: [ "websocket" ],
+        reconnection: false,
+    });
+
+    try {
+        let result = await socketClientHandler(socket, token, requestData);
+        let status = 404;
+        if (result.status) {
+            status = result.status;
+        } else if (result.ok) {
+            status = 200;
+        }
+        response.status(status).json(result);
+    } catch (e) {
+        response.status(e.status).json(e);
+    }
+
+    console.log("Close socket");
+    socket.disconnect();
+});
+
+/**
+ * @param {Socket} socket
+ * @param {string} token JWT
+ * @param {object} requestData Request Data
+ */
+function socketClientHandler(socket, token, requestData) {
+    const action = requestData.action;
+    const params = requestData.params;
+
+    return new Promise((resolve, reject) => {
+        socket.on("connect", () => {
+            socket.emit("loginByToken", token, (res) => {
+                if (res.ok) {
+
+                    if (action === "getPushExample") {
+                        if (params.length <= 0) {
+                            reject({
+                                status: 400,
+                                ok: false,
+                                msg: "Missing required parameter(s)",
+                            });
+                        } else {
+                            socket.emit("getPushExample", params[0], (res) => {
+                                resolve(res);
+                            });
+                        }
+
+                    } else {
+                        reject({
+                            status: 404,
+                            ok: false,
+                            msg: "Event not found"
+                        });
+                    }
+                } else {
+                    reject({
+                        status: 401,
+                        ok: false,
+                        msg: "Login failed?????"
+                    });
+                }
+            });
+        });
+
+        socket.on("connect_error", (error) => {
+            reject({
+                status: 500,
+                ok: false,
+                msg: error.message
+            });
+        });
+
+        socket.on("error", (error) => {
+            reject({
+                status: 500,
+                ok: false,
+                msg: error.message
+            });
+        });
+    });
+
+}
+
+/*
+ * Badge API
+ */
+
 router.get("/api/badge/:id/status", cache("5 minutes"), async (request, response) => {
     allowAllOrigin(response);
 

test/api.http

@@ -0,0 +1,11 @@
+POST http://localhost:3001/api
+Authorization: Bearer uk1_1HaQRETls-E5KlhB6yCtf8WJRW57KwFMuKkya-Tj
+Content-Type: application/json
+
+{
+    "action": "getPushExample",
+    "params": [
+        "javascript-fetch"
+    ]
+}
+###