+++ /dev/null
-/**\r
-* @file Node entry and main driver\r
-* @author Jordan Lavatai, Ken Grimes\r
-* @version 0.0.1\r
-* @license AGPL-3.0\r
-* @copyright loljk 2017\r
-* @summ ary HTTP(S) Router that uses the first directory in the requested URL\r
-* as the route name\r
-*/\r
-const fs = require('fs')\r
-const ws = require('ws')\r
-const path = require('path')\r
-const http = require('http')\r
-const https = require('https')\r
-const getport = require('get-port')\r
-const mime = require('mime')\r
-const opts = require('./opts.js')\r
-\r
-const router = {\r
- skelPage: fs.readFileSync('./skel.html', { encoding: 'utf8' }).split('<!--STRAPP_SRC-->'),\r
- clientJS: fs.readFileSync(opts['client-js']),\r
- hostJS: fs.readFileSync(opts['host-js']),\r
- routes: {},\r
- httpsOpt: undefined,\r
- httpd: undefined,\r
- wsProtocol: opts['no-tls'] ? 'ws' : 'wss',\r
- respond: (request,response) => {\r
- console.log('server handling request')\r
- const serveFile = (fPath) => {\r
- fs.readFile(fPath, { encoding: 'utf8' }, (err, data) => {\r
- if (err || data == undefined) {\r
- response.writeHead(404)\r
- response.end()\r
- }\r
- else {\r
- response.writeHead(200, { 'Content-Type': mime.lookup(fPath) })\r
- response.write(data)\r
- response.end()\r
- }\r
- })\r
- }\r
- const htArgv = request.url.slice(1).split("?")\r
- let routePath = htArgv[0].split('/')\r
- let routeName = routePath[0]\r
-\r
-\r
- if (routeName === '' || routeName === 'index.html')\r
- serveFile(opts['index'])\r
- else if (routeName in opts['bindings']) {\r
- let localPath = path.normalize(opts['bindings'][routeName].concat(path.sep + routePath.slice(1).join(path.sep)))\r
- if (localPath.includes(opts['bindings'][routeName])) {\r
- fs.readdir(localPath, (err, files) => {\r
- if (err)\r
- serveFile(localPath)\r
- else\r
- serveFile(`${localPath}/index.html`)\r
- })\r
- }\r
- else {\r
- console.log(`SEC: ${localPath} references files not in route`)\r
- }\r
- }\r
- /* TODO: Handle reconnecting host */\r
- else if (routeName in router.routes) {\r
- const route = router.routes[routeName]\r
- const clients = route['clients']\r
- const headerData = request.headers['x-strapp-type']\r
-\r
-\r
-\r
-\r
- /* Client is INIT GET */\r
- if (headerData === undefined) {\r
- console.log('client init GET')\r
- response.writeHead(200, { 'Content-Type': 'text/html' })\r
- response.write(`${router.skelPage[0]}${router.clientJS}${router.skelPage[1]}`)\r
- response.end()\r
- //TODO: if route.socket == undefined: have server delay this send until host connects\r
- // (this happens when a client connects to an active route with no currently-online host)\r
- }\r
- else if (headerData.localeCompare('ice-candidate-request') === 0) {\r
- console.log('Server: received ice-candidate-request from Client ') \r
- let pubKey = request.headers['x-client-pubkey']\r
- clients.set(pubKey, response)\r
- pubKey = '{ "pubKey": "' + pubKey + '" }'\r
- route.socket.send(pubKey)\r
- }\r
- else if (headerData.localeCompare('ice-candidate-submission') === 0) {\r
- console.log('Server: recieved ice-candidate-submission from Client')\r
- let data = []\r
- request.on('data', (chunk) => {\r
- data.push(chunk)\r
- }).on('end', () => {\r
- console.log('Sending ice-candidate-submission to Host')\r
- data = Buffer.concat(data).toString();\r
- clients.set(JSON.parse(data)['pubKey'], response)\r
- route.socket.send(data)\r
- })\r
- }\r
- else if (headerData.localeCompare('client-sdp-offer') === 0){ /* Client sent offer, waiting for answer */\r
- console.log('Server: Sending client offer to host')\r
- clients.set(JSON.parse(request.headers['x-client-offer'])['pubKey'], response)\r
- route.socket.send(request.headers['x-client-offer'])\r
- } else {\r
- console.log('Unhandled stuff')\r
- console.log(request.headers)\r
- }\r
-\r
- }\r
- else {\r
- router.routes[routeName] = true\r
- const newRoute = {}\r
- newRoute.clients = new Map([])\r
- newRoute.host = request.headers['x-forwarded-for'] || request.connection.remoteAddress\r
- getport().then( (port) => {\r
- newRoute.port = port\r
- if (opts['no-tls'])\r
- newRoute.httpd = http.createServer()\r
- else\r
- newRoute.httpd = https.createServer(router.httpsOpts)\r
- newRoute.httpd.listen(newRoute.port)\r
- newRoute.wsd = new ws.Server( { server: newRoute.httpd } )\r
- newRoute.wsd.on('connection', (sock) => {\r
- console.log(`${routeName} server has been established`)\r
- newRoute.socket = sock\r
-\r
- /* Handle all messages from host */\r
- sock.on('message', (hostMessage) => {\r
- hostMessage = JSON.parse(hostMessage)\r
- response = newRoute.clients.get(hostMessage['clientPubKey'])\r
-\r
- /* If the host response is a answer */\r
- if (hostMessage['cmd'].localeCompare('< sdp pubKey') === 0) {\r
- console.log('Server: Sending host answer to client')\r
- response.writeHead(200, { 'Content-Type': 'application/json' })\r
- response.write(JSON.stringify(hostMessage))\r
- response.end()\r
- }\r
- else if (hostMessage['cmd'].localeCompare('< ice pubKey') === 0){\r
- /* if the host response is an ice candidate */\r
- console.log('Server: Handling host ICE message')\r
- let iceState = hostMessage['iceState']\r
- /* If there are any ice candidates, send them back */\r
- switch(iceState) {\r
- case "a":\r
- response.writeHead('200', {'x-strapp-type': 'ice-candidate-available'})\r
- response.write(JSON.stringify(hostMessage))\r
- response.end()\r
- break\r
- case "g":\r
- console.log('Server: Host is still gathering candidates, keep trying')\r
- response.writeHead('200', {'x-strapp-type': 'ice-state-gathering'})\r
- response.write(JSON.stringify(hostMessage))\r
- response.end()\r
- break\r
- case "c":\r
- console.log('Server: Host has completed gathering candidates')\r
- response.writeHead('200', {'x-strapp-type': 'ice-state-complete'})\r
- response.write(JSON.stringify(hostMessage))\r
- response.end()\r
- break\r
- default:\r
- console.log('unhandled iceState from host')\r
- break\r
- }\r
- }\r
-\r
- })\r
- })\r
-\r
- console.log(`Listening for websocket ${newRoute.host} on port ${newRoute.port}`)\r
- router.routes[routeName] = newRoute\r
- }).then(() => {\r
- response.writeHead(200, { 'Content-Type': 'text/html' })\r
- response.write(`${router.skelPage[0]}` +\r
- `\tconst _strapp_port = ${newRoute.port}\n` +\r
- `\tconst _strapp_protocol = '${router.wsProtocol}'\n` +\r
- `${router.hostJS}\n${router.skelPage[1]}`)\r
- response.end()\r
- })\r
- }\r
-\r
-\r
- }\r
- }\r
-\r
- /**\r
- * @summary Boot up the router. With TLS, we must wait for file reads to sync.\r
- */\r
- if (!opts['no-tls']) {\r
- console.log('tls')\r
- let filesRead = 0\r
- let key = undefined\r
- let cert = undefined\r
- const syncRead = () => {\r
- if (++filesRead == 2) {\r
- if (key == undefined)\r
- console.log(`ERR: Key ${opts['ca-key']} inaccessible, tls will fail`)\r
- if(cert == undefined)\r
- console.log(`ERR: Cert ${opts['ca-cert']} inaccessible, tls will fail`)\r
- else if (key != undefined) {\r
- router.httpsOpts = { cert: cert, key: key}\r
- router.httpd = https.createServer(router.httpsOpts, router.respond)\r
- .listen(opts['port'])\r
- }\r
- }\r
- }\r
- fs.readFile(opts['ca-key'], { encoding: 'utf8' }, (err, data) => {\r
- if (!err) key = data\r
- syncRead()\r
- })\r
- fs.readFile(opts['ca-cert'], { encoding: 'utf8' }, (err, data) => {\r
- if (!err) cert = data\r
- syncRead()\r
- })\r
- }\r
- else\r
- router.httpd = http.createServer(router.respond).listen(opts['port'])\r
-\r
- //TODO: if ("electron" in process.versions) open a local renderwindow, and route to it\r
projects / henge / kiak.git / blobdiff