296 lines
11 KiB
JavaScript
296 lines
11 KiB
JavaScript
const express = require("express");
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const bodyParser = require("body-parser");
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const cookieParser = require("cookie-parser")
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const cors = require("cors");
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const helmet = require("helmet");
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const morgan = require("morgan");
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var api = require("./package.json");
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const {pveAPIToken, listenPort, domain} = require("./vars.js");
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const {checkAuth, requestPVE, handleResponse, getUsedResources, getDiskInfo} = require("./pveutils.js");
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const {init, getUser, getResources} = require("./db.js");
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const app = express();
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app.use(helmet());
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app.use(bodyParser.urlencoded({extended: true}));
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app.use(cookieParser())
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app.use(cors({origin: domain}));
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app.use(morgan("combined"));
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app.get("/api/version", (req, res) => {
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res.status(200).send({version: api.version});
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});
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app.get("/api/echo", (req, res) => {
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res.status(200).send({body: req.body, cookies: req.cookies});
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});
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app.get("/api/auth", async (req, res) => {
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await checkAuth(req.cookies);
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res.status(200).send({auth: true});
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});
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app.get("/api/proxmox/*", async (req, res) => { // proxy endpoint for GET proxmox api with no token
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path = req.url.replace("/api/proxmox", "");
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let result = await requestPVE(path, "GET", req.cookies);
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res.status(result.status).send(result.data);
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});
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app.post("/api/proxmox/*", async (req, res) => { // proxy endpoint for POST proxmox api with no token
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path = req.url.replace("/api/proxmox", "");
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let result = await requestPVE(path, "POST", req.cookies, JSON.stringify(req.body)); // need to stringify body because of other issues
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res.status(result.status).send(result.data);
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});
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async function getUserResources (req, username) {
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let used = await getUsedResources(req, getResources());
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let max = getUser(username).resources.max;
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avail = {};
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Object.keys(max).forEach((k) => {
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avail[k] = max[k] - used[k];
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});
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return {used: used, max: max, avail: avail};
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}
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async function approveResources (request, avail) {
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let approved = true;
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Object.keys(request).forEach((key) => {
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if (!(key in avail)) {
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approved = false;
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}
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else if (avail[key] - request[key] < 0) {
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approved = false;
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}
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});
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return approved;
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}
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app.get("/api/user/resources", async(req, res) => {
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// check auth
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await checkAuth(req.cookies, res);
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let userResources = await getUserResources(req, req.cookies.username);
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userResources.units = getResources();
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res.status(200).send(userResources);
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res.end();
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return;
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});
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app.post("/api/disk/detach", async (req, res) => {
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// check auth
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await checkAuth(req.cookies, res);
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if (req.body.disk.includes("unused")) {
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res.status(500).send({error: `Requested disk ${req.body.disk} cannot be unused. Use /disk/delete to permanently delete unused disks.`});
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return;
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}
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let action = JSON.stringify({delete: req.body.disk});
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let method = req.body.type === "qemu" ? "POST" : "PUT";
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let result = await requestPVE(`/nodes/${req.body.node}/${req.body.type}/${req.body.vmid}/config`, method, req.cookies, action, pveAPIToken);
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await handleResponse(req.body.node, result, res);
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});
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app.post("/api/disk/attach", async (req, res) => {
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// check auth
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await checkAuth(req.cookies, res);
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let action = {};
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action[req.body.disk] = req.body.data;
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action = JSON.stringify(action);
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let method = req.body.type === "qemu" ? "POST" : "PUT";
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let result = await requestPVE(`/nodes/${req.body.node}/${req.body.type}/${req.body.vmid}/config`, method, req.cookies, action, pveAPIToken);
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await handleResponse(req.body.node, result, res);
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});
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app.post("/api/disk/resize", async (req, res) => {
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// check auth
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await checkAuth(req.cookies, res);
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// check disk existence
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let diskConfig = await getDiskInfo(req.body.node, req.body.type, req.body.vmid, req.body.disk); // get target disk
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if (!diskConfig) { // exit if disk does not exist
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res.status(500).send({error: `requested disk ${req.body.disk} does not exist`});
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return;
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}
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// get used resources
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let userResources = await getUserResources(req, req.cookies.username);
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// setup request
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let storage = diskConfig.storage; // get the storage
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let request = {};
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request[storage] = Number(req.body.size * 1024 ** 3); // setup request object
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// check request approval
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if (!await approveResources(request, userResources.avail)) {
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res.status(500).send({request: request, error: `Storage ${storage} could not fulfill request of size ${req.body.size}G.`});
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return;
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}
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// action approved, commit to action
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let action = JSON.stringify({disk: req.body.disk, size: `+${req.body.size}G`});
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let result = await requestPVE(`/nodes/${req.body.node}/${req.body.type}/${req.body.vmid}/resize`, "PUT", req.cookies, action, pveAPIToken);
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await handleResponse(req.body.node, result, res);
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});
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app.post("/api/disk/move", async (req, res) => {
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// check auth
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await checkAuth(req.cookies, res);
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// check disk existence
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let diskConfig = await getDiskInfo(req.body.node, req.body.type, req.body.vmid, req.body.disk); // get target disk
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if (!diskConfig) { // exit if disk does not exist
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res.status(500).send({error: `requested disk ${req.body.disk} does not exist`});
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return;
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}
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// get used resources
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let userResources = await getUserResources(req, req.cookies.username);
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// setup request
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let size = parseInt(diskConfig.size); // get source disk size
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let srcStorage = diskConfig.storage; // get source storage
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let dstStorage = req.body.storage; // get destination storage
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let request = {};
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let release = {};
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if (req.body.delete) { // if delete is true, increase resource used by the source storage
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release[srcStorage] = Number(size);
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}
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request[dstStorage] = Number(size); // always decrease destination storage by size
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// check request approval
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if (!await approveResources(request, userResources.avail)) {
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res.status(500).send({request: request, error: `Storage ${req.body.storage} could not fulfill request of size ${req.body.size}G.`});
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return;
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}
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let action = {storage: req.body.storage, delete: req.body.delete};
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if (req.body.type === "qemu") {
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action.disk = req.body.disk
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}
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else {
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action.volume = req.body.disk
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}
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action = JSON.stringify(action);
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let route = req.body.type === "qemu" ? "move_disk" : "move_volume";
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let result = await requestPVE(`/nodes/${req.body.node}/${req.body.type}/${req.body.vmid}/${route}`, "POST", req.cookies, action, pveAPIToken);
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await handleResponse(req.body.node, result, res);
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});
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app.post("/api/disk/delete", async (req, res) => {
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// check auth
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await checkAuth(req.cookies, res);
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// only ide or unused are allowed to be deleted
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if (!req.body.disk.includes("unused") && !req.body.disk.includes("ide")) { // must be ide or unused
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res.status(500).send({error: `Requested disk ${req.body.disk} must be unused or ide. Use /disk/detach to detach disks in use.`});
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return;
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}
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let action = JSON.stringify({delete: req.body.disk});
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let method = req.body.type === "qemu" ? "POST" : "PUT";
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// commit action
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let result = await requestPVE(`/nodes/${req.body.node}/${req.body.type}/${req.body.vmid}/config`, method, req.cookies, action, pveAPIToken);
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await handleResponse(req.body.node, result, res);
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});
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app.post("/api/disk/create", async (req, res) => {
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// check auth
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await checkAuth(req.cookies, res);
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// get used resources
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let userResources = await getUserResources(req, req.cookies.username);
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// setup request
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let request = {};
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if (!req.body.disk.includes("ide")) {
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request[req.body.storage] = Number(req.body.size * 1024 ** 3); // setup request object
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// check request approval
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if (!await approveResources(request, userResources.avail)) {
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res.status(500).send({request: request, error: `Storage ${req.body.storage} could not fulfill request of size ${req.body.size}G.`});
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return;
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}
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}
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let action = {};
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if (req.body.disk.includes("ide") && req.body.iso) {
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action[req.body.disk] = `${req.body.iso},media=cdrom`;
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}
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else if (req.body.type === "qemu") { // type is qemu, use sata
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action[req.body.disk] = `${req.body.storage}:${req.body.size}`;
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}
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else { // type is lxc, use mp and add mp and backup values
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action[req.body.disk] = `${req.body.storage}:${req.body.size},mp=/mp${req.body.device}/,backup=1`;
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}
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action = JSON.stringify(action);
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let method = req.body.type === "qemu" ? "POST" : "PUT";
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// commit action
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let result = await requestPVE(`/nodes/${req.body.node}/${req.body.type}/${req.body.vmid}/config`, method, req.cookies, action, pveAPIToken);
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await handleResponse(req.body.node, result, res);
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});
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app.post("/api/resources", async (req, res) => {
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// check auth
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await checkAuth(req.cookies, res);
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// get used resources
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let userResources = await getUserResources(req, req.cookies.username);
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// get current config
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let currentConfig = await requestPVE(`/nodes/${req.body.node}/${req.body.type}/${req.body.vmid}/config`, "GET", null, null, pveAPIToken);
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let request = {
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cores: Number(req.body.cores) - Number(currentConfig.data.data.cores),
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memory: Number(req.body.memory) - Number(currentConfig.data.data.memory)
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};
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// check resource approval
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if (!await approveResources(request, userResources.avail)) {
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res.status(500).send({request: request, error: `Could not fulfil request`});
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return;
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}
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// commit action
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let action = JSON.stringify({cores: req.body.cores, memory: req.body.memory});
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let method = req.body.type === "qemu" ? "POST" : "PUT";
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let result = await requestPVE(`/nodes/${req.body.node}/${req.body.type}/${req.body.vmid}/config`, method, req.cookies, action, pveAPIToken);
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await handleResponse(req.body.node, result, res);
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});
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app.post("/api/instance", async (req, res) => {
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// check auth
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await checkAuth(req.cookies, res);
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// get used resources
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let userResources = await getUserResources(req, req.cookies.username);
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// setup request
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let request = {
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cores: Number(req.body.cores),
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memory: Number(req.body.memory)
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};
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// setup action
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let user = await requestPVE(`/access/users/${req.cookies.username}`, "GET", null, null, pveAPIToken);
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let group = user.data.data.groups[0];
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if (!group) {
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res.status(500).send({error: `user ${req.cookies.username} has no group membership`});
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}
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let action = {
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vmid: req.body.vmid,
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cores: req.body.cores,
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memory: req.body.memory,
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pool: group
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};
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if (req.body.type === "lxc") {
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action.swap = req.body.swap;
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action.hostname = req.body.name;
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action.unprivileged = 1;
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action.features = "nesting=1";
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action.password = req.body.password;
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action.ostemplate = req.body.ostemplate;
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action.rootfs = `${req.body.rootfslocation}:${req.body.rootfssize}`;
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request[req.body.rootfslocation] = req.body.rootfssize;
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}
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else {
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action.name = req.body.name;
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}
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// check resource approval
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if (!approveResources(request, userResources.avail)) { // check resource approval
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res.status(500).send({request: request, error: `Not enough resources to satisfy request.`});
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return;
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}
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// commit action
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action = JSON.stringify(action);
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let result = await requestPVE(`/nodes/${req.body.node}/${req.body.type}`, "POST", req.cookies, action, pveAPIToken);
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await handleResponse(req.body.node, result, res);
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});
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app.delete("/api/instance", async (req, res) => {
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// check auth
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await checkAuth(req.cookies, res);
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// commit action
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let result = await requestPVE(`/nodes/${req.body.node}/${req.body.type}/${req.body.vmid}`, "DELETE", req.cookies, null, pveAPIToken);
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await handleResponse(req.body.node, result, res);
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});
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app.listen(listenPort, () => {
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init();
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console.log(`proxmoxaas-api v${api.version} listening on port ${listenPort}`);
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}); |