moel@348: /*
moel@348:
moel@348: This Source Code Form is subject to the terms of the Mozilla Public
moel@348: License, v. 2.0. If a copy of the MPL was not distributed with this
moel@348: file, You can obtain one at http://mozilla.org/MPL/2.0/.
moel@348:
moel@348: Copyright (C) 2012 Prince Samuel <prince.samuel@gmail.com>
moel@386: Copyright (C) 2012 Michael Möller <mmoeller@openhardwaremonitor.org>
moel@348:
moel@348: */
moel@348:
moel@348: using System;
moel@386: using System.Drawing;
moel@386: using System.Drawing.Imaging;
moel@386: using System.IO;
moel@386: using System.Net;
moel@386: using System.Reflection;
moel@348: using System.Text;
moel@348: using System.Threading;
moel@348: using OpenHardwareMonitor.GUI;
moel@348: using OpenHardwareMonitor.Hardware;
moel@348:
moel@386: namespace OpenHardwareMonitor.Utilities {
moel@386:
moel@386: public class HttpServer {
moel@386: private HttpListener listener;
moel@386: private int listenerPort, nodeCount;
moel@386: private Thread listenerThread;
moel@386: private Node root;
moel@386:
moel@387: public HttpServer(Node node, int port) {
moel@387: root = node;
moel@387: listenerPort = port;
moel@386:
moel@386: //JSON node count.
moel@386: nodeCount = 0;
moel@387:
moel@387: try {
moel@387: listener = new HttpListener();
moel@387: } catch (PlatformNotSupportedException) {
moel@387: listener = null;
moel@387: }
moel@387: }
moel@387:
moel@387: public bool PlatformNotSupported {
moel@387: get {
moel@387: return listener == null;
moel@387: }
moel@386: }
moel@386:
moel@386: public Boolean StartHTTPListener() {
moel@387: if (PlatformNotSupported)
moel@387: return false;
moel@387:
moel@386: try {
moel@386: if (listener.IsListening)
moel@386: return true;
moel@386:
moel@386: string prefix = "http://+:" + listenerPort + "/";
moel@386: listener.Prefixes.Clear();
moel@386: listener.Prefixes.Add(prefix);
moel@386: listener.Start();
moel@386:
moel@386: if (listenerThread == null) {
moel@386: listenerThread = new Thread(HandleRequests);
moel@386: listenerThread.Start();
moel@386: }
moel@386: } catch (Exception) {
moel@386: return false;
moel@386: }
moel@386:
moel@386: return true;
moel@386: }
moel@386:
moel@386: public Boolean StopHTTPListener() {
moel@387: if (PlatformNotSupported)
moel@387: return false;
moel@387:
moel@386: try {
moel@386: listenerThread.Abort();
moel@386: listener.Stop();
moel@386: listenerThread = null;
moel@386: } catch (HttpListenerException) {
moel@386: } catch (ThreadAbortException) {
moel@386: } catch (NullReferenceException) {
moel@386: } catch (Exception) {
moel@386: }
moel@386: return true;
moel@386: }
moel@386:
moel@387: private void HandleRequests() {
moel@386:
moel@386: while (listener.IsListening) {
moel@386: var context = listener.BeginGetContext(
moel@386: new AsyncCallback(ListenerCallback), listener);
moel@386: context.AsyncWaitHandle.WaitOne();
moel@386: }
moel@386: }
moel@386:
moel@387: private void ListenerCallback(IAsyncResult result) {
moel@386: HttpListener listener = (HttpListener)result.AsyncState;
moel@386: if (listener == null || !listener.IsListening)
moel@386: return;
moel@387:
moel@386: // Call EndGetContext to complete the asynchronous operation.
moel@387: HttpListenerContext context;
moel@387: try {
moel@387: context = listener.EndGetContext(result);
moel@387: } catch (Exception) {
moel@387: return;
moel@387: }
moel@387:
moel@386: HttpListenerRequest request = context.Request;
moel@386:
moel@386: var requestedFile = request.RawUrl.Substring(1);
moel@386: if (requestedFile == "data.json") {
moel@387: SendJSON(context.Response);
moel@386: return;
moel@386: }
moel@386:
moel@386: if (requestedFile.Contains("images_icon")) {
moel@387: ServeResourceImage(context.Response,
moel@387: requestedFile.Replace("images_icon/", ""));
moel@386: return;
moel@386: }
moel@386:
moel@386: // default file to be served
moel@386: if (string.IsNullOrEmpty(requestedFile))
moel@386: requestedFile = "index.html";
moel@386:
moel@386: string[] splits = requestedFile.Split('.');
moel@386: string ext = splits[splits.Length - 1];
moel@387: ServeResourceFile(context.Response,
moel@387: "Web." + requestedFile.Replace('/', '.'), ext);
moel@386: }
moel@386:
moel@387: private void ServeResourceFile(HttpListenerResponse response, string name,
moel@386: string ext)
moel@348: {
moel@386: // resource names do not support the hyphen
moel@386: name = "OpenHardwareMonitor.Resources." +
moel@386: name.Replace("custom-theme", "custom_theme");
moel@386:
moel@386: string[] names =
moel@386: Assembly.GetExecutingAssembly().GetManifestResourceNames();
moel@386: for (int i = 0; i < names.Length; i++) {
moel@386: if (names[i].Replace('\\', '.') == name) {
moel@386: using (Stream stream = Assembly.GetExecutingAssembly().
moel@386: GetManifestResourceStream(names[i])) {
moel@387: response.ContentType = GetcontentType("." + ext);
moel@387: response.ContentLength64 = stream.Length;
moel@386: byte[] buffer = new byte[512 * 1024];
moel@386: int len;
moel@387: try {
moel@387: Stream output = response.OutputStream;
moel@387: while ((len = stream.Read(buffer, 0, buffer.Length)) > 0) {
moel@387: output.Write(buffer, 0, len);
moel@387: }
moel@387: output.Close();
moel@387: } catch (HttpListenerException) {
moel@386: }
moel@387: response.Close();
moel@387: return;
moel@387: }
moel@348: }
moel@386: }
moel@387:
moel@387: response.StatusCode = 404;
moel@387: response.Close();
moel@386: }
moel@348:
moel@387: private void ServeResourceImage(HttpListenerResponse response, string name) {
moel@386: name = "OpenHardwareMonitor.Resources." + name;
moel@348:
moel@386: string[] names =
moel@386: Assembly.GetExecutingAssembly().GetManifestResourceNames();
moel@386: for (int i = 0; i < names.Length; i++) {
moel@386: if (names[i].Replace('\\', '.') == name) {
moel@386: using (Stream stream = Assembly.GetExecutingAssembly().
moel@386: GetManifestResourceStream(names[i])) {
moel@348:
moel@386: Image image = Image.FromStream(stream);
moel@387: response.ContentType = "image/png";
moel@387: try {
moel@387: Stream output = response.OutputStream;
moel@387: using (MemoryStream ms = new MemoryStream()) {
moel@387: image.Save(ms, ImageFormat.Png);
moel@387: ms.WriteTo(output);
moel@387: }
moel@387: output.Close();
moel@387: } catch (HttpListenerException) {
moel@348: }
moel@386: image.Dispose();
moel@387: response.Close();
moel@386: return;
moel@386: }
moel@386: }
moel@386: }
moel@387:
moel@387: response.StatusCode = 404;
moel@387: response.Close();
moel@386: }
moel@348:
moel@387: private void SendJSON(HttpListenerResponse response) {
moel@348:
moel@386: string JSON = "{\"id\": 0, \"Text\": \"Sensor\", \"Children\": [";
moel@386: nodeCount = 1;
moel@386: JSON += GenerateJSON(root);
moel@386: JSON += "]";
moel@386: JSON += ", \"Min\": \"Min\"";
moel@386: JSON += ", \"Value\": \"Value\"";
moel@386: JSON += ", \"Max\": \"Max\"";
moel@386: JSON += ", \"ImageURL\": \"\"";
moel@386: JSON += "}";
moel@348:
moel@386: var responseContent = JSON;
moel@386: byte[] buffer = Encoding.UTF8.GetBytes(responseContent);
moel@348:
moel@387: response.AddHeader("Cache-Control", "no-cache");
moel@348:
moel@387: response.ContentLength64 = buffer.Length;
moel@387: response.ContentType = "application/json";
moel@348:
moel@387: try {
moel@387: Stream output = response.OutputStream;
moel@387: output.Write(buffer, 0, buffer.Length);
moel@387: output.Close();
moel@387: } catch (HttpListenerException) {
moel@387: }
moel@387:
moel@387: response.Close();
moel@386: }
moel@348:
moel@386: private string GenerateJSON(Node n) {
moel@386: string JSON = "{\"id\": " + nodeCount + ", \"Text\": \"" + n.Text
moel@386: + "\", \"Children\": [";
moel@386: nodeCount++;
moel@348:
moel@386: foreach (Node child in n.Nodes)
moel@386: JSON += GenerateJSON(child) + ", ";
moel@386: if (JSON.EndsWith(", "))
moel@386: JSON = JSON.Remove(JSON.LastIndexOf(","));
moel@386: JSON += "]";
moel@348:
moel@386: if (n is SensorNode) {
moel@386: JSON += ", \"Min\": \"" + ((SensorNode)n).Min + "\"";
moel@386: JSON += ", \"Value\": \"" + ((SensorNode)n).Value + "\"";
moel@386: JSON += ", \"Max\": \"" + ((SensorNode)n).Max + "\"";
moel@386: JSON += ", \"ImageURL\": \"images/transparent.png\"";
moel@386: } else if (n is HardwareNode) {
moel@386: JSON += ", \"Min\": \"\"";
moel@386: JSON += ", \"Value\": \"\"";
moel@386: JSON += ", \"Max\": \"\"";
moel@386: JSON += ", \"ImageURL\": \"images_icon/" +
moel@386: GetHardwareImageFile((HardwareNode)n) + "\"";
moel@386: } else if (n is TypeNode) {
moel@386: JSON += ", \"Min\": \"\"";
moel@386: JSON += ", \"Value\": \"\"";
moel@386: JSON += ", \"Max\": \"\"";
moel@386: JSON += ", \"ImageURL\": \"images_icon/" +
moel@386: GetTypeImageFile((TypeNode)n) + "\"";
moel@386: } else {
moel@386: JSON += ", \"Min\": \"\"";
moel@386: JSON += ", \"Value\": \"\"";
moel@386: JSON += ", \"Max\": \"\"";
moel@386: JSON += ", \"ImageURL\": \"images_icon/computer.png\"";
moel@386: }
moel@348:
moel@386: JSON += "}";
moel@386: return JSON;
moel@386: }
moel@348:
moel@386: private static void ReturnFile(HttpListenerContext context, string filePath)
moel@386: {
moel@386: context.Response.ContentType =
moel@386: GetcontentType(Path.GetExtension(filePath));
moel@386: const int bufferSize = 1024 * 512; //512KB
moel@386: var buffer = new byte[bufferSize];
moel@386: using (var fs = File.OpenRead(filePath)) {
moel@348:
moel@386: context.Response.ContentLength64 = fs.Length;
moel@386: int read;
moel@386: while ((read = fs.Read(buffer, 0, buffer.Length)) > 0)
moel@386: context.Response.OutputStream.Write(buffer, 0, read);
moel@386: }
moel@348:
moel@386: context.Response.OutputStream.Close();
moel@386: }
moel@348:
moel@386: private static string GetcontentType(string extension) {
moel@386: switch (extension) {
moel@386: case ".avi": return "video/x-msvideo";
moel@386: case ".css": return "text/css";
moel@386: case ".doc": return "application/msword";
moel@386: case ".gif": return "image/gif";
moel@386: case ".htm":
moel@386: case ".html": return "text/html";
moel@386: case ".jpg":
moel@386: case ".jpeg": return "image/jpeg";
moel@386: case ".js": return "application/x-javascript";
moel@386: case ".mp3": return "audio/mpeg";
moel@386: case ".png": return "image/png";
moel@386: case ".pdf": return "application/pdf";
moel@386: case ".ppt": return "application/vnd.ms-powerpoint";
moel@386: case ".zip": return "application/zip";
moel@386: case ".txt": return "text/plain";
moel@386: default: return "application/octet-stream";
moel@386: }
moel@386: }
moel@348:
moel@386: private static string GetHardwareImageFile(HardwareNode hn) {
moel@348:
moel@386: switch (hn.Hardware.HardwareType) {
moel@386: case HardwareType.CPU:
moel@386: return "cpu.png";
moel@386: case HardwareType.GpuNvidia:
moel@386: return "nvidia.png";
moel@386: case HardwareType.GpuAti:
moel@386: return "ati.png";
moel@386: case HardwareType.HDD:
moel@386: return "hdd.png";
moel@386: case HardwareType.Heatmaster:
moel@386: return "bigng.png";
moel@386: case HardwareType.Mainboard:
moel@386: return "mainboard.png";
moel@386: case HardwareType.SuperIO:
moel@386: return "chip.png";
moel@386: case HardwareType.TBalancer:
moel@386: return "bigng.png";
moel@386: case HardwareType.RAM:
moel@386: return "ram.png";
moel@386: default:
moel@386: return "cpu.png";
moel@386: }
moel@348:
moel@386: }
moel@348:
moel@386: private static string GetTypeImageFile(TypeNode tn) {
moel@348:
moel@386: switch (tn.SensorType) {
moel@386: case SensorType.Voltage:
moel@386: return "voltage.png";
moel@386: case SensorType.Clock:
moel@386: return "clock.png";
moel@386: case SensorType.Load:
moel@386: return "load.png";
moel@386: case SensorType.Temperature:
moel@386: return "temperature.png";
moel@386: case SensorType.Fan:
moel@386: return "fan.png";
moel@386: case SensorType.Flow:
moel@386: return "flow.png";
moel@386: case SensorType.Control:
moel@386: return "control.png";
moel@386: case SensorType.Level:
moel@386: return "level.png";
moel@386: case SensorType.Power:
moel@386: return "power.png";
moel@386: default:
moel@386: return "power.png";
moel@386: }
moel@348:
moel@386: }
moel@348:
moel@386: public int ListenerPort {
moel@386: get { return listenerPort; }
moel@386: set { listenerPort = value; }
moel@386: }
moel@348:
moel@386: ~HttpServer() {
moel@387: if (PlatformNotSupported)
moel@387: return;
moel@387:
moel@386: StopHTTPListener();
moel@386: listener.Abort();
moel@386: }
moel@348:
moel@386: public void Quit() {
moel@387: if (PlatformNotSupported)
moel@387: return;
moel@387:
moel@386: StopHTTPListener();
moel@386: listener.Abort();
moel@348: }
moel@386: }
moel@348: }