first commit
This commit is contained in:
@@ -0,0 +1,754 @@
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// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
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// If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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// Copyright (C) LibreHardwareMonitor and Contributors.
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// Partial Copyright (C) Michael Möller <mmoeller@openhardwaremonitor.org> and Contributors.
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// All Rights Reserved.
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using System;
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using System.Collections.Generic;
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using System.Collections.Specialized;
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using System.Drawing;
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using System.Drawing.Imaging;
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using System.Globalization;
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using System.IO;
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using System.IO.Compression;
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using System.Linq;
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using System.Net;
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using System.Reflection;
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using System.Security.Cryptography;
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using System.Text;
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using System.Threading;
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using System.Web;
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using LibreHardwareMonitor.Hardware;
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using LibreHardwareMonitor.UI;
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using Newtonsoft.Json.Linq;
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namespace LibreHardwareMonitor.Utilities;
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public class HttpServer
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{
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private readonly HttpListener _listener;
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private readonly Node _root;
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private Thread _listenerThread;
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public HttpServer(Node node, string ip, int port, bool authEnabled = false, string userName = "", string password = "")
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{
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_root = node;
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ListenerIp = ip;
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ListenerPort = port;
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AuthEnabled = authEnabled;
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UserName = userName;
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Password = password;
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try
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{
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_listener = new HttpListener { IgnoreWriteExceptions = true };
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}
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catch (PlatformNotSupportedException)
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{
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_listener = null;
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}
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}
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~HttpServer()
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{
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if (PlatformNotSupported)
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return;
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StopHttpListener();
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_listener.Abort();
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}
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public bool AuthEnabled { get; set; }
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public string ListenerIp { get; set; }
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public int ListenerPort { get; set; }
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public string Password
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{
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get { return PasswordSHA256; }
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set { PasswordSHA256 = ComputeSHA256(value); }
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}
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public bool PlatformNotSupported
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{
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get { return _listener == null; }
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}
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public string UserName { get; set; }
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private string PasswordSHA256 { get; set; }
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public bool StartHttpListener()
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{
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if (PlatformNotSupported)
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return false;
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try
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{
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if (_listener.IsListening)
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return true;
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// validate that the selected IP exists (it could have been previously selected before switching networks)
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IPHostEntry host = Dns.GetHostEntry(Dns.GetHostName());
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bool ipFound = false;
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foreach (IPAddress ip in host.AddressList)
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{
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if (ListenerIp == ip.ToString())
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{
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ipFound = true;
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break;
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}
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}
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if (!ipFound)
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{
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// default to behavior of previous version if we don't know what interface to use.
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ListenerIp = "+";
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}
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string prefix = "http://" + ListenerIp + ":" + ListenerPort + "/";
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_listener.Prefixes.Clear();
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_listener.Prefixes.Add(prefix);
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_listener.Realm = "Libre Hardware Monitor";
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_listener.AuthenticationSchemes = AuthEnabled ? AuthenticationSchemes.Basic : AuthenticationSchemes.Anonymous;
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_listener.Start();
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if (_listenerThread == null)
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{
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_listenerThread = new Thread(HandleRequests);
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_listenerThread.Start();
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}
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}
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catch (Exception)
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{
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return false;
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}
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return true;
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}
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public bool StopHttpListener()
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{
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if (PlatformNotSupported)
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return false;
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try
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{
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_listenerThread?.Abort();
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_listener.Stop();
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_listenerThread = null;
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}
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catch (HttpListenerException)
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{ }
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catch (ThreadAbortException)
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{ }
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catch (NullReferenceException)
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{ }
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catch (Exception)
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{ }
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return true;
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}
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private void HandleRequests()
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{
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while (_listener.IsListening)
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{
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IAsyncResult context = _listener.BeginGetContext(ListenerCallback, _listener);
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context.AsyncWaitHandle.WaitOne();
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}
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}
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public static IDictionary<string, string> ToDictionary(NameValueCollection col)
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{
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IDictionary<string, string> dict = new Dictionary<string, string>();
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foreach (string k in col.AllKeys)
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{
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dict.Add(k, col[k]);
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}
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return dict;
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}
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public SensorNode FindSensor(Node node, string id)
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{
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if (node is SensorNode sNode)
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{
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if (sNode.Sensor.Identifier.ToString() == id)
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return sNode;
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}
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foreach (Node child in node.Nodes)
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{
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SensorNode s = FindSensor(child, id);
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if (s != null)
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{
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return s;
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}
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}
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return null;
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}
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public void SetSensorControlValue(SensorNode sNode, string value)
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{
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if (sNode.Sensor.Control == null)
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{
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throw new ArgumentException("Specified sensor '" + sNode.Sensor.Identifier + "' can not be set");
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}
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if (value == "null")
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{
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sNode.Sensor.Control.SetDefault();
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}
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else
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{
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sNode.Sensor.Control.SetSoftware(float.Parse(value, CultureInfo.InvariantCulture));
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}
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}
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//Handles "/Sensor" requests.
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//Parameters are taken from the query part of the URL.
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//Get:
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//http://localhost:8085/Sensor?action=Get&id=/some/node/path/0
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//The output is either:
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//{"result":"fail","message":"Some error message"}
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//or:
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//{"result":"ok","value":42.0, "format":"{0:F2} RPM"}
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//
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//Set:
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//http://localhost:8085/Sensor?action=Set&id=/some/node/path/0&value=42.0
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//http://localhost:8085/Sensor?action=Set&id=/some/node/path/0&value=null
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//The output is either:
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//{"result":"fail","message":"Some error message"}
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//or:
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//{"result":"ok"}
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private void HandleSensorRequest(HttpListenerRequest request, JObject result)
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{
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IDictionary<string, string> dict = ToDictionary(HttpUtility.ParseQueryString(request.Url.Query));
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if (dict.ContainsKey("action"))
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{
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if (dict.ContainsKey("id"))
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{
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SensorNode sNode = FindSensor(_root, dict["id"]);
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if (sNode == null)
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{
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throw new ArgumentException("Unknown id " + dict["id"] + " specified");
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}
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switch (dict["action"])
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{
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case "Set" when dict.ContainsKey("value"):
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SetSensorControlValue(sNode, dict["value"]);
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break;
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case "Set":
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throw new ArgumentNullException("No value provided");
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case "Get":
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result["value"] = sNode.Sensor.Value;
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result["min"] = sNode.Sensor.Min;
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result["max"] = sNode.Sensor.Max;
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result["format"] = sNode.Format;
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break;
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default:
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throw new ArgumentException("Unknown action type " + dict["action"]);
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}
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}
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else
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{
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throw new ArgumentNullException("No id provided");
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}
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}
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else
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{
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throw new ArgumentNullException("No action provided");
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}
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}
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//Handles http POST requests in a REST like manner.
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//Currently the only supported base URL is http://localhost:8085/Sensor.
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private string HandlePostRequest(HttpListenerRequest request)
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{
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JObject result = new() { ["result"] = "ok" };
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try
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{
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if (request.Url.Segments.Length == 2)
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{
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if (request.Url.Segments[1] == "Sensor")
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{
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HandleSensorRequest(request, result);
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}
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else
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{
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throw new ArgumentException("Invalid URL ('" + request.Url.Segments[1] + "'), possible values: ['Sensor']");
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}
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}
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else
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throw new ArgumentException("Empty URL, possible values: ['Sensor']");
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}
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catch (Exception e)
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{
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result["result"] = "fail";
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result["message"] = e.ToString();
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}
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#if DEBUG
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return result.ToString(Newtonsoft.Json.Formatting.Indented);
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#else
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return result.ToString(Newtonsoft.Json.Formatting.None);
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#endif
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}
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private void ListenerCallback(IAsyncResult result)
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{
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HttpListener listener = (HttpListener)result.AsyncState;
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if (listener == null || !listener.IsListening)
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return;
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// Call EndGetContext to complete the asynchronous operation.
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HttpListenerContext context;
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try
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{
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context = listener.EndGetContext(result);
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}
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catch (Exception)
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{
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return;
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}
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HttpListenerRequest request = context.Request;
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bool authenticated;
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if (AuthEnabled)
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{
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try
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{
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HttpListenerBasicIdentity identity = (HttpListenerBasicIdentity)context.User.Identity;
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authenticated = (identity.Name == UserName) & (ComputeSHA256(identity.Password) == Password);
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}
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catch
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{
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authenticated = false;
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}
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}
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else
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{
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authenticated = true;
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}
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if (authenticated)
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{
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switch (request.HttpMethod)
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{
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case "POST":
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{
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string postResult = HandlePostRequest(request);
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Stream output = context.Response.OutputStream;
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byte[] utfBytes = Encoding.UTF8.GetBytes(postResult);
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context.Response.AddHeader("Cache-Control", "no-cache");
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context.Response.ContentLength64 = utfBytes.Length;
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context.Response.ContentType = "application/json";
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output.Write(utfBytes, 0, utfBytes.Length);
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output.Close();
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break;
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}
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case "GET":
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{
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string requestedFile = request.RawUrl.Substring(1);
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if (requestedFile == "data.json")
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{
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SendJson(context.Response, request);
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return;
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}
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if (requestedFile.Contains("images_icon"))
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{
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ServeResourceImage(context.Response,
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requestedFile.Replace("images_icon/", string.Empty));
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return;
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}
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if (requestedFile.Contains("Sensor"))
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{
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JObject sensorResult = new();
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HandleSensorRequest(request, sensorResult);
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SendJsonSensor(context.Response, sensorResult);
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return;
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}
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// default file to be served
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if (string.IsNullOrEmpty(requestedFile))
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requestedFile = "index.html";
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string[] splits = requestedFile.Split('.');
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string ext = splits[splits.Length - 1];
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ServeResourceFile(context.Response, "Web." + requestedFile.Replace('/', '.'), ext);
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break;
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}
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default:
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{
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context.Response.StatusCode = 404;
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break;
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}
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||||
}
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}
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else
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{
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context.Response.StatusCode = 401;
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}
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|
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if (context.Response.StatusCode == 401)
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{
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const string responseString = @"<HTML><HEAD><TITLE>401 Unauthorized</TITLE></HEAD>
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<BODY><H4>401 Unauthorized</H4>
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Authorization required.</BODY></HTML> ";
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byte[] buffer = Encoding.UTF8.GetBytes(responseString);
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context.Response.ContentLength64 = buffer.Length;
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context.Response.StatusCode = 401;
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Stream output = context.Response.OutputStream;
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output.Write(buffer, 0, buffer.Length);
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output.Close();
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}
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||||
|
||||
try
|
||||
{
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||||
context.Response.Close();
|
||||
}
|
||||
catch
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||||
{
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// client closed connection before the content was sent
|
||||
}
|
||||
}
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private void ServeResourceFile(HttpListenerResponse response, string name, string ext)
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{
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// resource names do not support the hyphen
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||||
name = "LibreHardwareMonitor.Resources." +
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name.Replace("custom-theme", "custom_theme");
|
||||
|
||||
string[] names = Assembly.GetExecutingAssembly().GetManifestResourceNames();
|
||||
|
||||
for (int i = 0; i < names.Length; i++)
|
||||
{
|
||||
if (names[i].Replace('\\', '.') == name)
|
||||
{
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||||
using Stream stream = Assembly.GetExecutingAssembly().GetManifestResourceStream(names[i]);
|
||||
|
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response.ContentType = GetContentType("." + ext);
|
||||
response.ContentLength64 = stream.Length;
|
||||
byte[] buffer = new byte[512 * 1024];
|
||||
try
|
||||
{
|
||||
Stream output = response.OutputStream;
|
||||
int len;
|
||||
while ((len = stream.Read(buffer, 0, buffer.Length)) > 0)
|
||||
{
|
||||
output.Write(buffer, 0, len);
|
||||
}
|
||||
|
||||
output.Flush();
|
||||
output.Close();
|
||||
response.Close();
|
||||
}
|
||||
catch (HttpListenerException)
|
||||
{ }
|
||||
catch (InvalidOperationException)
|
||||
{ }
|
||||
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
response.StatusCode = 404;
|
||||
response.Close();
|
||||
}
|
||||
|
||||
private void ServeResourceImage(HttpListenerResponse response, string name)
|
||||
{
|
||||
name = "LibreHardwareMonitor.Resources." + name;
|
||||
|
||||
string[] names = Assembly.GetExecutingAssembly().GetManifestResourceNames();
|
||||
|
||||
for (int i = 0; i < names.Length; i++)
|
||||
{
|
||||
if (names[i].Replace('\\', '.') == name)
|
||||
{
|
||||
using Stream stream = Assembly.GetExecutingAssembly().GetManifestResourceStream(names[i]);
|
||||
|
||||
Image image = Image.FromStream(stream);
|
||||
response.ContentType = "image/png";
|
||||
try
|
||||
{
|
||||
Stream output = response.OutputStream;
|
||||
using (MemoryStream ms = new())
|
||||
{
|
||||
image.Save(ms, ImageFormat.Png);
|
||||
ms.WriteTo(output);
|
||||
}
|
||||
|
||||
output.Close();
|
||||
}
|
||||
catch (HttpListenerException)
|
||||
{ }
|
||||
|
||||
image.Dispose();
|
||||
response.Close();
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
response.StatusCode = 404;
|
||||
response.Close();
|
||||
}
|
||||
|
||||
private void SendJson(HttpListenerResponse response, HttpListenerRequest request = null)
|
||||
{
|
||||
JObject json = new();
|
||||
|
||||
int nodeIndex = 0;
|
||||
|
||||
json["id"] = nodeIndex++;
|
||||
json["Text"] = "Sensor";
|
||||
json["Min"] = "Min";
|
||||
json["Value"] = "Value";
|
||||
json["Max"] = "Max";
|
||||
json["ImageURL"] = string.Empty;
|
||||
|
||||
json["Children"] = new JArray { GenerateJsonForNode(_root, ref nodeIndex) };
|
||||
|
||||
#if DEBUG
|
||||
string responseContent = json.ToString(Newtonsoft.Json.Formatting.Indented);
|
||||
#else
|
||||
string responseContent = json.ToString(Newtonsoft.Json.Formatting.None);
|
||||
#endif
|
||||
byte[] buffer = Encoding.UTF8.GetBytes(responseContent);
|
||||
|
||||
bool acceptGzip;
|
||||
try
|
||||
{
|
||||
acceptGzip = (request != null) && (request.Headers["Accept-Encoding"].ToLower().IndexOf("gzip", StringComparison.OrdinalIgnoreCase) >= 0);
|
||||
}
|
||||
catch
|
||||
{
|
||||
acceptGzip = false;
|
||||
}
|
||||
|
||||
if (acceptGzip)
|
||||
response.AddHeader("Content-Encoding", "gzip");
|
||||
|
||||
response.AddHeader("Cache-Control", "no-cache");
|
||||
response.AddHeader("Access-Control-Allow-Origin", "*");
|
||||
response.ContentType = "application/json";
|
||||
try
|
||||
{
|
||||
if (acceptGzip)
|
||||
{
|
||||
using var ms = new MemoryStream();
|
||||
using (var zip = new GZipStream(ms, CompressionMode.Compress, true))
|
||||
zip.Write(buffer, 0, buffer.Length);
|
||||
|
||||
buffer = ms.ToArray();
|
||||
}
|
||||
|
||||
response.ContentLength64 = buffer.Length;
|
||||
Stream output = response.OutputStream;
|
||||
output.Write(buffer, 0, buffer.Length);
|
||||
output.Close();
|
||||
}
|
||||
catch (HttpListenerException)
|
||||
{ }
|
||||
|
||||
response.Close();
|
||||
}
|
||||
|
||||
private void SendJsonSensor(HttpListenerResponse response, JObject sensorData)
|
||||
{
|
||||
// Convert the JObject to a JSON string
|
||||
string responseContent = sensorData.ToString(Newtonsoft.Json.Formatting.None);
|
||||
byte[] buffer = Encoding.UTF8.GetBytes(responseContent);
|
||||
|
||||
// Add headers and set content type
|
||||
response.AddHeader("Cache-Control", "no-cache");
|
||||
response.AddHeader("Access-Control-Allow-Origin", "*");
|
||||
response.ContentType = "application/json";
|
||||
|
||||
// Write the response content to the output stream
|
||||
try
|
||||
{
|
||||
response.ContentLength64 = buffer.Length;
|
||||
Stream output = response.OutputStream;
|
||||
output.Write(buffer, 0, buffer.Length);
|
||||
output.Close();
|
||||
}
|
||||
catch (HttpListenerException)
|
||||
{ }
|
||||
|
||||
// Close the response
|
||||
response.Close();
|
||||
}
|
||||
|
||||
private JObject GenerateJsonForNode(Node n, ref int nodeIndex)
|
||||
{
|
||||
JObject jsonNode = new()
|
||||
{
|
||||
["id"] = nodeIndex++,
|
||||
["Text"] = n.Text,
|
||||
["Min"] = string.Empty,
|
||||
["Value"] = string.Empty,
|
||||
["Max"] = string.Empty
|
||||
};
|
||||
|
||||
switch (n)
|
||||
{
|
||||
case SensorNode sensorNode:
|
||||
jsonNode["SensorId"] = sensorNode.Sensor.Identifier.ToString();
|
||||
jsonNode["Type"] = sensorNode.Sensor.SensorType.ToString();
|
||||
jsonNode["Min"] = sensorNode.Min;
|
||||
jsonNode["Value"] = sensorNode.Value;
|
||||
jsonNode["Max"] = sensorNode.Max;
|
||||
jsonNode["ImageURL"] = "images/transparent.png";
|
||||
break;
|
||||
case HardwareNode hardwareNode:
|
||||
jsonNode["ImageURL"] = "images_icon/" + GetHardwareImageFile(hardwareNode);
|
||||
break;
|
||||
case TypeNode typeNode:
|
||||
jsonNode["ImageURL"] = "images_icon/" + GetTypeImageFile(typeNode);
|
||||
break;
|
||||
default:
|
||||
jsonNode["ImageURL"] = "images_icon/computer.png";
|
||||
break;
|
||||
}
|
||||
|
||||
JArray children = [];
|
||||
foreach (Node child in n.Nodes)
|
||||
{
|
||||
children.Add(GenerateJsonForNode(child, ref nodeIndex));
|
||||
}
|
||||
|
||||
jsonNode["Children"] = children;
|
||||
|
||||
return jsonNode;
|
||||
}
|
||||
|
||||
private static string GetContentType(string extension)
|
||||
{
|
||||
switch (extension)
|
||||
{
|
||||
case ".avi": return "video/x-msvideo";
|
||||
case ".css": return "text/css";
|
||||
case ".doc": return "application/msword";
|
||||
case ".gif": return "image/gif";
|
||||
case ".htm":
|
||||
case ".html": return "text/html";
|
||||
case ".jpg":
|
||||
case ".jpeg": return "image/jpeg";
|
||||
case ".js": return "application/x-javascript";
|
||||
case ".mp3": return "audio/mpeg";
|
||||
case ".png": return "image/png";
|
||||
case ".pdf": return "application/pdf";
|
||||
case ".ppt": return "application/vnd.ms-powerpoint";
|
||||
case ".zip": return "application/zip";
|
||||
case ".txt": return "text/plain";
|
||||
default: return "application/octet-stream";
|
||||
}
|
||||
}
|
||||
|
||||
private static string GetHardwareImageFile(HardwareNode hn)
|
||||
{
|
||||
switch (hn.Hardware.HardwareType)
|
||||
{
|
||||
case HardwareType.Cpu:
|
||||
return "cpu.png";
|
||||
case HardwareType.GpuNvidia:
|
||||
return "nvidia.png";
|
||||
case HardwareType.GpuAmd:
|
||||
return "ati.png";
|
||||
case HardwareType.GpuIntel:
|
||||
return "intel.png";
|
||||
case HardwareType.Storage:
|
||||
return "hdd.png";
|
||||
case HardwareType.Motherboard:
|
||||
return "mainboard.png";
|
||||
case HardwareType.SuperIO:
|
||||
return "chip.png";
|
||||
case HardwareType.Memory:
|
||||
return "ram.png";
|
||||
case HardwareType.Cooler:
|
||||
return "fan.png";
|
||||
case HardwareType.Network:
|
||||
return "nic.png";
|
||||
case HardwareType.Psu:
|
||||
return "power-supply.png";
|
||||
case HardwareType.Battery:
|
||||
return "battery.png";
|
||||
default:
|
||||
return "cpu.png";
|
||||
}
|
||||
}
|
||||
|
||||
private static string GetTypeImageFile(TypeNode tn)
|
||||
{
|
||||
switch (tn.SensorType)
|
||||
{
|
||||
case SensorType.Voltage:
|
||||
case SensorType.Current:
|
||||
return "voltage.png";
|
||||
case SensorType.Clock:
|
||||
return "clock.png";
|
||||
case SensorType.Load:
|
||||
return "load.png";
|
||||
case SensorType.Temperature:
|
||||
return "temperature.png";
|
||||
case SensorType.Fan:
|
||||
return "fan.png";
|
||||
case SensorType.Flow:
|
||||
return "flow.png";
|
||||
case SensorType.Control:
|
||||
return "control.png";
|
||||
case SensorType.Level:
|
||||
return "level.png";
|
||||
case SensorType.Power:
|
||||
return "power.png";
|
||||
case SensorType.Noise:
|
||||
return "loudspeaker.png";
|
||||
case SensorType.Conductivity:
|
||||
return "voltage.png";
|
||||
case SensorType.Throughput:
|
||||
return "throughput.png";
|
||||
case SensorType.Humidity:
|
||||
return "flow.png";
|
||||
default:
|
||||
return "power.png";
|
||||
}
|
||||
}
|
||||
|
||||
private string ComputeSHA256(string text)
|
||||
{
|
||||
using SHA256 hash = SHA256.Create();
|
||||
return string.Concat(hash
|
||||
.ComputeHash(Encoding.UTF8.GetBytes(text))
|
||||
.Select(item => item.ToString("x2")));
|
||||
}
|
||||
|
||||
public void Quit()
|
||||
{
|
||||
if (PlatformNotSupported)
|
||||
return;
|
||||
|
||||
StopHttpListener();
|
||||
_listener.Abort();
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user