-const fs = require('fs')
-const ws = require('ws')
-const https = require('https')
-const getport = require('get-port')
-const mime = require('mime')
-
-const argv = require('minimist')(process.argv.slice(2), {
- string: [ 'ca-cert', 'ca-key', 'config', 'client-js', 'host-js', 'electron', 'port' ],
- boolean: [ 'remote-host' ],
- alias: { c: 'config',
- j: 'client-js',
- J: 'host-js',
- C: 'ca-cert',
- K: 'ca-key',
- e: 'electron',
- r: 'remote-host',
- p: 'port'
- },
- default: { config: undefined,
- 'client-js': 'client.js',
- 'host-js': 'host.js',
- 'ca-cert': 'stunnel.cert',
- 'ca-key': 'stunnel.key',
- 'remote-host': true,
- 'port': 2443
- },
- stopEarly: true,
- unknown: (opt) => {
- console.log(process.argv.join(" ") + '\nUnknown operator: ' + opt + `
-Usage: strapp [OPTION]...
-Route https connections from a hardware port to a remote host, and initiate
-peer-to-peer connection with clients.
-
-CONFIG
- -c, --config=path Configuration file to use (/etc/strapp.conf)
- - overridden by command line opts
- -j, --client-js=path Path to the client Strapp code (./strapp-client.js)
- -J, --host-js=path Path to the host Strapp code (./strapp-host.js)
- -C, --ca-cert=path Accessible location of the CA Cert (./stunnel.cert)
- -K, --ca-key=path Accessible location of the CA Key (./stunnel.key)
- -p, --port=number The local port to bind HTTPS listener to (2443)
-
-ROUTING
- -e, --electron=route Route to the local electron user (nil)
- - enables optional electron dependency
- -d, --dedicated=route Route all incoming connections to this route (nil)
- - used in conjunction with '-e=my_route'
-
-(c)2017 jk software
-`)
- process.exit()
- }
-})
-
-//TODO: if (argv['config'] !== undefined), read and apply to argv without overwrite
-if (argv['www-path'] == undefined)
- argv['www-path'] = 'www'
-else if (String(argv['www-path']).endsWith('/'))
- argv['www-path'] = argv['www-path'].slice(0,-1)
-
-const routerOpts = {
- key: fs.readFileSync(argv['ca-key']),
- cert: fs.readFileSync(argv['ca-cert'])
-}
-const skelPage = String(fs.readFileSync('skel.html')).split("<!--STRAPP-->")
-const clientJS = fs.readFileSync(argv['client-js'])
-const hostJS = fs.readFileSync(argv['host-js'])
-const routes = {}
-const fileBuf = {}
-let fbSize = 0
-fs.readdirSync(argv['www-path']).forEach((file) => {
- if (fbSize++ < 50) {
- fileBuf[file] = { mime: mime.lookup(argv['www-path'] + '/' + file),
- data: fs.readFileSync(argv['www-path'] + '/' + file)
- }
- }
-})
-
-const router = https.createServer(routerOpts, (request, response) => {
- const htArgv = request.url.slice(1).split("?")
- let routeName = htArgv[0].split('/')[0]
- if (routeName === '')
- routeName = 'index.html'
- if (routeName.indexOf('.') != -1) {
- if (routeName in fileBuf) {
- response.writeHead(200, { 'Content-Type': fileBuf[routeName].mime })
- response.write(fileBuf[routeName].data)
- }
- else {
- if ('404.html' in fileBuf) {
- response.writeHead(404, fileBuf['404.html'].mime)
- response.write(fileBuf['404.html'].data)
- }
- else
- response.writeHead(404)
- }
- response.end()
- }
- else if (routeName in routes) {
- const route = routes[routeName]
- response.writeHead(200, { 'Content-Type': 'text/html' })
- response.write(skelPage[0] + clientJS + skelPage[1])
- response.end()
- route.socket.send(request.headers['x-forwarded-for'] || request.connection.remoteAddress)
- }
- else {
- routes[htArgv[0]] = true
- const newRoute = {}
- newRoute.host = request.headers['x-forwarded-for'] || request.connection.remoteAddress
- getport().then( (port) => {
- newRoute.port = port
- newRoute.httpd = https.createServer(routerOpts, (request, response) => {
- }).listen(newRoute.port)
-
- newRoute.ws = new ws.Server( { server: newRoute.httpd } )
- newRoute.ws.on('connection', (ws) => { console.log("socket connected"); newRoute.socket = ws; ws.send("CONNECTED") } )
- newRoute.ws.on('message', (msg) => { console.log("Received message" + msg) })
- console.log("Listening for websocket " + newRoute.host + " on port " + newRoute.port)
- routes[htArgv[0]] = newRoute
- }).then(() => {
- response.writeHead(200, { 'Content-Type': 'text/html' })
- response.write(skelPage[0] + 'const _strapp_host = \'www.strapp.io\'\n\tconst _strapp_port = \'' + newRoute.port + '\'\n' + hostJS + skelPage[1])
- response.end()
- })
- }
-}).listen(argv['port'])
-
-//TODO: if ("electron" in process.versions) open a local renderwindow, and route to it
-
+/**\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