X-Git-Url: https://git.kengrimes.com/?p=henge%2Fkiak.git;a=blobdiff_plain;f=main.js;h=321af8873c2ab3d5a2a683bac4ad8085be83b525;hp=75e762f7f231c92a5431310c5d82890f8fd27a56;hb=bf0ef83964741dcd64d27a8da651e65beba7e451;hpb=8a767de924e57ea87bc2d0d0b9cf9864e523d916

diff --git a/main.js b/main.js
index 75e762f..321af88 100644
--- a/main.js
+++ b/main.js
@@ -25,6 +25,7 @@ const router = {
   httpd:      undefined,
   wsProtocol: opts['no-tls'] ? 'ws' : 'wss',
   respond:    (request,response) => {
+    console.log('server handling request')
     const serveFile = (fPath) => {
       fs.readFile(fPath, { encoding: 'utf8' }, (err, data) => {
         if (err || data == undefined) {
@@ -41,6 +42,8 @@ const router = {
     const htArgv = request.url.slice(1).split("?")
     let routePath = htArgv[0].split('/')
     let routeName = routePath[0]
+
+
     if (routeName === '' || routeName === 'index.html')
     serveFile(opts['index'])
     else if (routeName in opts['bindings']) {
@@ -57,18 +60,57 @@ const router = {
         console.log(`SEC: ${localPath} references files not in route`)
       }
     }
+    /* TODO: Handle reconnecting host */
     else if (routeName in router.routes) {
       const route = router.routes[routeName]
-      response.writeHead(200, { 'Content-Type': 'text/html' })
-      response.write(`${router.skelPage[0]}${router.clientJS}${router.skelPage[1]}`)
-      response.end()
-      //TODO: if route.socket == undefined: have server delay this send until host connects
-      //      (this happens when a client connects to an active route with no currently-online host)
-      route.socket.send(request.headers['x-forwarded-for'] || request.connection.remoteAddress)
+      const clients = route['clients']
+      const headerData = request.headers['x-strapp-type']
+
+
+
+
+      /* Client is INIT GET */
+      if (headerData === undefined) {
+        console.log('client init GET')
+        response.writeHead(200, { 'Content-Type': 'text/html' })
+        response.write(`${router.skelPage[0]}${router.clientJS}${router.skelPage[1]}`)
+        response.end()
+        //TODO: if route.socket == undefined: have server delay this send until host connects
+        //      (this happens when a client connects to an active route with no currently-online host)
+      }
+      else if (headerData.localeCompare('ice-candidate-request') === 0) {
+        console.log('Server: received ice-candidate-request from Client')
+        let pubKey = request.headers['x-client-pubkey']
+        clients.set(pubKey, response)
+        pubKey = '{ "pubKey": "'  + pubKey + '" }'
+        route.socket.send(pubKey)
+      }
+      else if (headerData.localeCompare('ice-candidate-submission') === 0) {
+        console.log('Server: recieved ice-candidate-submission from Client')
+        let data = []
+        request.on('data', (chunk) => {
+          data.push(chunk)
+        }).on('end', () => {
+          console.log('Sending ice-candidate-submission to Host')
+          data = Buffer.concat(data).toString();
+          clients.set(JSON.parse(data)['pubKey'], response)
+          route.socket.send(data)
+        })
+      }
+      else if (headerData.localeCompare('client-sdp-offer') === 0){ /* Client sent offer, waiting for answer */
+        console.log('Server: Sending client offer to host')
+        clients.set(JSON.parse(request.headers['x-client-offer'])['pubKey'], response)
+        route.socket.send(request.headers['x-client-offer'])
+      } else {
+        console.log('Unhandled stuff')
+        console.log(request.headers)
+      }
+
     }
     else {
       router.routes[routeName] = true
       const newRoute = {}
+      newRoute.clients = new Map([])
       newRoute.host = request.headers['x-forwarded-for'] || request.connection.remoteAddress
       getport().then( (port) => {
         newRoute.port = port
@@ -79,9 +121,53 @@ const router = {
         newRoute.httpd.listen(newRoute.port)
         newRoute.wsd = new ws.Server( { server: newRoute.httpd } )
         newRoute.wsd.on('connection', (sock) => {
+          console.log(`${routeName} server has been established`)
           newRoute.socket = sock
-          sock.on('message', (msg) => { console.log(`[${newRoute.host}] ${msg}`) })
+
+          /* Handle all messages from host */
+          sock.on('message', (hostMessage) => {
+            hostMessage = JSON.parse(hostMessage)
+            response = newRoute.clients.get(hostMessage['clientPubKey'])
+
+            /* If the host response is a answer */
+            if (hostMessage['cmd'].localeCompare('< sdp pubKey') === 0) {
+              console.log('Server: Sending host answer to client')
+              response.writeHead(200, { 'Content-Type': 'application/json' })
+              response.write(JSON.stringify(hostMessage))
+              response.end()
+            }
+            else if (hostMessage['cmd'].localeCompare('< ice pubKey') === 0){
+              /* if the host response is an ice candidate */
+              console.log('Server: Handling host ICE message')
+              let iceState = hostMessage['iceState']              
+              /* If there are any ice candidates, send them back */
+              switch(iceState) {
+                case "a":
+                  response.writeHead('200', {'x-strapp-type': 'ice-candidate-available'})
+                  response.write(JSON.stringify(hostMessage))
+                  response.end()
+                  break
+                case "g":
+                  console.log('Server: Host is still gathering candidates, keep trying')
+                  response.writeHead('200', {'x-strapp-type': 'ice-state-gathering'})
+                  response.write(JSON.stringify(hostMessage))
+                  response.end()
+                break
+                case "c":
+                  console.log('Server: Host has completed gathering candidates')
+                  response.writeHead('200', {'x-strapp-type': 'ice-state-complete'})
+                  response.write(JSON.stringify(hostMessage))
+                  response.end()
+                  break
+                default:
+                  console.log('unhandled iceState from host')
+                  break
+                }
+            }
+
+          })
         })
+
         console.log(`Listening for websocket ${newRoute.host} on port ${newRoute.port}`)
         router.routes[routeName] = newRoute
       }).then(() => {
@@ -94,6 +180,7 @@ const router = {
         })
       }
 
+
     }
   }
 
@@ -101,6 +188,7 @@ const router = {
   * @summary Boot up the router.  With TLS, we must wait for file reads to sync.
   */
   if (!opts['no-tls']) {
+    console.log('tls')
     let filesRead = 0
     let key = undefined
     let cert = undefined