add better client sync schemes initialization,

add client sync scheme selects to localdb,
start on interrupt sync scheme implementation,
change sync endpoints to start with /sync/
This commit is contained in:
Arthur Lu 2023-07-11 22:06:41 +00:00
parent aa8148fc16
commit 178ff6168f
5 changed files with 83 additions and 32 deletions

View File

@ -87,6 +87,11 @@
"whitelist": true,
"display": true
}
},
"clientsync": {
"always": true,
"hash": true,
"interrupt": true
}
},
"users": {

View File

@ -7,10 +7,12 @@
"dependencies": {
"axios": "^1.3.2",
"body-parser": "^1.20.1",
"cookie": "^0.5.0",
"cookie-parser": "^1.4.6",
"cors": "^2.8.5",
"express": "^4.18.2",
"morgan": "^1.10.0"
"morgan": "^1.10.0",
"ws": "^8.13.0"
},
"devDependencies": {
"eslint": "^8.43.0",

69
src/clientsync.js Normal file
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@ -0,0 +1,69 @@
import { WebSocketServer } from "ws";
import * as cookie from "cookie";
import { requestPVE } from "./pve.js";
import { checkAuth, getObjectHash } from "./utils.js";
// maps usernames to socket object(s)
const userSocketMap = {};
// maps proxmox resource ids to user(s) who can access the resource
const resourceUserMap = {};
export function setupClientSync (app, server, schemes) {
/**
* GET - get list of supported synchronization schemes
* responses:
* - 200 : {always: boolean, hash: boolean, interrupt: boolean}
*/
app.get("/api/sync/schemes", async (req, res) => {
res.send(schemes);
});
if (schemes.hash) {
/**
* GET - get hash of current cluster resources states
* Client can use this endpoint to check for cluster state changes to avoid costly data transfers to the client.
* responses:
* - 401: {auth: false}
* - 200: string
*/
app.get("/api/sync/hash", async (req, res) => {
// check auth
const auth = await checkAuth(req.cookies, res);
if (!auth) {
return;
}
// get current cluster resources
const status = (await requestPVE("/cluster/resources", "GET", req.cookies)).data.data;
// filter out just state information of resources that are needed
const resources = ["lxc", "qemu", "node"];
const state = {};
status.forEach((element) => {
if (resources.includes(element.type)) {
state[element.id] = element.status;
}
});
res.status(200).send(getObjectHash(state));
});
}
if (schemes.interrupt) {
const wsServer = new WebSocketServer({ noServer: true, path: "/api/sync/interrupt" });
wsServer.on("connection", (socket, username) => {
socket.on("message", (message) => {
console.log(message.toString());
});
});
server.on("upgrade", async (req, socket, head) => {
const cookies = cookie.parse(req.headers.cookie || "");
const auth = (await requestPVE("/version", "GET", cookies)).status === 200;
if (!auth) {
socket.destroy();
}
else {
wsServer.handleUpgrade(req, socket, head, (socket) => {
wsServer.emit("connection", socket, cookies.username);
});
}
});
}
}

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@ -6,8 +6,9 @@ import morgan from "morgan";
import { api } from "./package.js";
import { requestPVE, handleResponse, getDiskInfo, getDeviceInfo, getNodeAvailDevices } from "./pve.js";
import { checkAuth, approveResources, getUserResources, getObjectHash } from "./utils.js";
import { checkAuth, approveResources, getUserResources } from "./utils.js";
import { db, pveAPIToken, listenPort, hostname, domain } from "./db.js";
import { setupClientSync } from "./clientsync.js";
const app = express();
app.use(bodyParser.urlencoded({ extended: true }));
@ -1196,32 +1197,7 @@ app.delete(`/api/:node(${nodeRegexP})/:type(${typeRegexP})/:vmid(${vmidRegexP})/
await handleResponse(params.node, result, res);
});
/**
* GET - get hash of current cluster resources states
* Client can use this endpoint to check for cluster state changes to avoid costly data transfers to the client.
* responses:
* - 401: {auth: false}
* - 200: string
*/
app.get(`/api/cluster/statushash`, async (req, res) => {
// check auth
const auth = await checkAuth(req.cookies, res);
if (!auth) {
return;
}
// get current cluster resources
let status = (await requestPVE("/cluster/resources", "GET", req.cookies)).data.data;
// filter out just state information of resources that are needed
let resources = ["lxc", "qemu", "node"];
let state = {};
status.forEach((element) => {
if (resources.includes(element.type)) {
state[element.id] = element.status;
}
});
res.status(200).send(getObjectHash(state));
});
app.listen(listenPort, () => {
const server = app.listen(listenPort, () => {
console.log(`proxmoxaas-api v${api.version} listening on port ${listenPort}`);
});
setupClientSync(app, server, db.getGlobalConfig().clientsync);

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@ -1,4 +1,4 @@
import {createHash} from "crypto";
import { createHash } from "crypto";
import { getUsedResources, requestPVE } from "./pve.js";
import { db } from "./db.js";
@ -94,9 +94,8 @@ export async function approveResources (req, username, request) {
return approved; // if all requested resources pass, allow
}
export function getObjectHash (object, alg = "sha256", format = "hex") {
const hash = createHash(alg);
hash.update(JSON.stringify(object, Object.keys(object).sort()));
return hash.digest(format);
}
}