improved video playback

post and get request lib

src/java/eu/heili/hometheater/website/MainPage.kt

@@ -47,11 +47,8 @@ class MainPage : HttpHandler {
             val s = path.substring(path.length - 3)
             if (s == ".js") mime = "application/javascript"
             if (s == "css") mime = "text/css"
-            if (s == "mp4") {
-                mime = "text/css"
-                sendVideo(fs, t)
-                return
-            }
+            if (s == "mp4") return sendVideo(fs, t) // special reply on videos
+
             val h = t.responseHeaders
             h["Content-Type"] = mime
 
@@ -60,19 +57,16 @@ class MainPage : HttpHandler {
             val buffer = ByteArray(0x10000)
             var count: Int
 
-            // todo check if output stream is even open
-//            fs.skip(4096)
             while (fs.read(buffer).also { count = it } >= 0) {
                 os.write(buffer, 0, count)
             }
-            debug("left loop!")
             fs.close()
             os.close()
         }
     }
 
     private fun sendVideo(fs: InputStream, t: HttpExchange) {
-        var mime = "video/mp4"
+        val size = fs.available()
         var offset = 0
         t.requestHeaders["Range"]?.get(0)?.apply {
             offset = Integer.valueOf(this.substring(this.indexOf("bytes=") + 6, this.indexOf("-")))
@@ -80,24 +74,29 @@ class MainPage : HttpHandler {
         println(offset)
         val h = t.responseHeaders
         h["Content-Type"] = "video/mp4"
-        h["Content-Length"] = "${145310237 - offset}"
+        h["Content-Length"] = "${size - offset}"
         h["Accept-Ranges"] = "bytes"
 
         if (offset != 0) {
-            h["Content-Range"] = "bytes $offset-145310236/145310237"
+            h["Content-Range"] = "bytes $offset-${size - 1}/$size"
+            // send back partial header on partial data!
+            t.sendResponseHeaders(206, 0)
+        }
+        else {
+            // send back normal 200 status code on normal request
+            t.sendResponseHeaders(200, 0)
         }
 
-        t.sendResponseHeaders(200, 0)
+
         val os = t.responseBody
         val buffer = ByteArray(1024)
         var count: Int
 
         // todo check if output stream is even open
 
-//        fs.skip(offset.toLong())
-
+        // skip offset bytes
+        fs.skip(offset.toLong())
         while (fs.read(buffer).also { count = it } >= 0) {
-
             os.write(buffer, 0, count)
         }
 

src/java/eu/heili/hometheater/website/Webserver.kt

@@ -3,6 +3,7 @@ package eu.heili.hometheater.website
 import com.sun.net.httpserver.HttpServer
 import eu.heili.hometheater.basicutils.Log.Log.criticalerror
 import eu.heili.hometheater.basicutils.Log.Log.info
+import eu.heili.hometheater.website.datarequests.TestData
 import java.io.IOException
 import java.net.BindException
 import java.net.InetSocketAddress
@@ -13,6 +14,7 @@ class Webserver {
         try {
             val server = HttpServer.create(InetSocketAddress(8080), 0)
             server.createContext("/", MainPage())
+            server.createContext("/data/test", TestData())
             // todo insert get and post request sites here!
             server.executor = java.util.concurrent.Executors.newCachedThreadPool() // creates a default executor
             server.start()

src/java/eu/heili/hometheater/website/basicrequest/GetRequest.kt

@@ -1,4 +1,4 @@
-package com.wasteinformationserver.website.basicrequest
+package eu.heili.hometheater.website.basicrequest
 
 import com.sun.net.httpserver.HttpExchange
 import com.sun.net.httpserver.HttpHandler

src/java/eu/heili/hometheater/website/basicrequest/PostRequest.kt

@@ -1,4 +1,4 @@
-package com.wasteinformationserver.website.basicrequest
+package eu.heili.hometheater.website.basicrequest
 
 import com.sun.net.httpserver.HttpExchange
 import com.sun.net.httpserver.HttpHandler

src/java/eu/heili/hometheater/website/datarequests/TestData.kt

@@ -0,0 +1,10 @@
+package eu.heili.hometheater.website.datarequests
+
+import eu.heili.hometheater.website.basicrequest.PostRequest
+import java.util.HashMap
+
+class TestData : PostRequest() {
+    override fun request(params: HashMap<String, String>): String {
+        return """{"status":"ok"}"""
+    }
+}

src/resources/wwwroot/index.html

@@ -2,9 +2,13 @@
 <html lang="en">
 <head>
     <meta charset="UTF-8">
+    <script src="js/BaseRequest.js"></script>
+    <script src="js/index.js"></script>
     <title>Home-Theater</title>
 </head>
 <body>
-main body
+<div class="mediawrapper">
+
+</div>
 </body>
 </html>

src/resources/wwwroot/js/BaseRequest.js

@@ -0,0 +1,27 @@
+class Req {
+    static post(url, data, callback) {
+        const xhttp = new XMLHttpRequest();
+        xhttp.onreadystatechange = function(){
+            if (this.readyState == 4 && this.status == 200) {
+                callback(JSON.parse(xhttp.responseText));
+            }
+        }
+        xhttp.open("POST",url,true);
+        xhttp.send(data);
+    }
+
+    static get(url, callback) {
+        const xhttp = new XMLHttpRequest();
+        xhttp.onreadystatechange = function(){
+            if (this.readyState == 4 && this.status == 200) {
+                callback(JSON.parse(xhttp.responseText));
+            }
+        }
+        xhttp.open("GET",url,true);
+        xhttp.send();
+    }
+
+    static ready(callback){
+        document.addEventListener('DOMContentLoaded', callback);
+    }
+}

src/resources/wwwroot/js/index.js

@@ -0,0 +1,5 @@
+Req.ready((event) => {
+    Req.post("/data/test","action=test",function (dta) {
+        console.log(dta);
+    });
+});