Propper file manager with encryption of files
This commit is contained in:
SCM6WE
committed by
Felix Hartmann (PEA3-Fe-FI)
Felix Hartmann (PEA3-Fe-FI)
parent
179ce2b1bb
commit
9141efd55a
@@ -26,6 +26,7 @@ namespace PolyChat
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private const ushort PORT = 8050;
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// Controller
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private readonly MainPage UIController;
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private readonly FileManager fileManager;
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// Props
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private Dictionary<string, Connection> Connections = new Dictionary<string, Connection>();
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private string OwnName = "";
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@@ -38,9 +39,9 @@ namespace PolyChat
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public Controller(MainPage uiController)
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{
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UIController = uiController;
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fileManager = new FileManager(uiController);
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OwnIP = getIP();
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loadChats();
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encode("test");
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fileManager.loadChats();
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Serve();
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// test
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@@ -120,7 +121,7 @@ namespace PolyChat
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// send as json
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Connections[ip].SendMessage(json.ToString());
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// save to logs
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SaveChats(ip, json.ToString(), DateTime.Now);
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fileManager.saveChats(ip, json.ToString(), DateTime.Now);
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}
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private void OnMessage(string ip, JToken[] data)
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@@ -131,7 +132,7 @@ namespace PolyChat
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DateTime now = DateTime.Now;
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Debug.WriteLine("RAW: " + data[0]);
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UIController.OnIncomingMessage(ip, data[0].ToString(), now);
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SaveChats(ip, data[0].ToString(), now);
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fileManager.saveChats(ip, data[0].ToString(), now);
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}
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else Debug.WriteLine("Undefined: " + data);
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}
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@@ -178,106 +179,11 @@ namespace PolyChat
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return null;
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}
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/// <summary>
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/// sends chatlogs as json array to uiController wit corrosponding ip
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///
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/// in ui when chat is clicked connection gets established
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/// </summary>
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/// <param name="ip"></param>
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public void loadChats()
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{
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//TODO: also load chatlogs when user tries to connect
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//load dir and create if non existant
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if (Directory.Exists("U:\\PolyChat\\Saves"))
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{
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Debug.WriteLine("--Path exists.--");
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}
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else
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{
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Directory.CreateDirectory("U:\\PolyChat\\Saves");
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Debug.WriteLine("--Path Created--.");
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}
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//go through all files and send ip and json array to ui
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String[] filepaths = Directory.GetFiles("U:\\PolyChat\\Saves");
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if (filepaths.Length > 0)
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{
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Debug.WriteLine("---Loading Saves");
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foreach (String path in filepaths)
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{
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Debug.WriteLine($"--{path}");
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String jsonArr = File.ReadAllText(path);
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String ip = Path.GetFileName(path);
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ip = ip.Substring(0, ip.Length - 4);
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Debug.WriteLine($"-{ip}");
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Debug.WriteLine(jsonArr);
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UIController.OnIncomingConnection(ip);
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UIController.OnIncomingMessages(ip, jsonArr);
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}
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}
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}
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/// <summary>
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/// Saves incoming chat message to
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/// </summary>
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/// <param name="ip"></param>
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/// <param name="json"></param>
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public void SaveChats(string ip, string json, DateTime timeStamp)
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{
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//Vielleicht noch so machen dass die mit gleicher ip nacheinander gemacht
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//werden damit es nicht zu überschreibungen kommt vielleicth auch ganz oben oder am ende ne
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//writing flag setzen oder auch in der datei selbst ne flag setzen
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new Thread(() =>
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{
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//breaking if namechange
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JObject obj = JObject.Parse(json);
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if (!obj["type"].ToString().Equals("username"))
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{
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//adding timestamp
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obj = JObject.Parse(json);
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obj.Add(new JProperty("timestamp", timeStamp));
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json = obj.ToString();
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if (File.Exists($"U:\\PolyChat\\Saves\\{ip}.txt"))
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{
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Debug.WriteLine("--File allready exists--");
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//check for integraty of file
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string output = File.ReadAllText($"U:\\PolyChat\\Saves\\{ip}.txt");
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Debug.WriteLine($"---{output}---");
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if (output.Substring(0, 1).Equals("[") && output.Substring(output.Length - 1, 1).Equals("]"))
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{
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Debug.WriteLine("--adding new chatmessage--");
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//structure intact
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//save new chat
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String saved = output.Substring(0, output.Length - 1);
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output = saved + ", " + json + " ]";
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File.Delete($"U:\\PolyChat\\Saves\\{ip}.txt");
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File.WriteAllText($"U:\\PolyChat\\Saves\\{ip}.txt", output);
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}
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else
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{
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Debug.WriteLine("--Structure not intact--");
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Debug.WriteLine("--redoing file--");
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//structure not intact
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//redo file
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File.Delete($"U:\\PolyChat\\Saves\\{ip}.txt");
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File.WriteAllText($"U:\\PolyChat\\Saves\\{ip}.txt", $"[ {json} ]");
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}
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}
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else
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{
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Debug.WriteLine("--Creating new File--");
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//setup file
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File.WriteAllText($"U:\\PolyChat\\Saves\\{ip}.txt", $"[ {json} ]");
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}
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}
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}).Start();
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}
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private void encode(string json)
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{
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String ecryptetText = FileManager.encrypt(json);
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Debug.WriteLine(ecryptetText);
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//Debug.WriteLine(FileManager.decrypt(ecryptetText));
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Debug.WriteLine(FileManager.decrypt(ecryptetText));
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}
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}
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}
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@@ -5,12 +5,131 @@ using System.Text;
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using System.Threading.Tasks;
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using System.IO;
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using System.Security.Cryptography;
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using System.Diagnostics;
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using System.Threading;
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using Newtonsoft.Json.Linq;
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namespace PolyChat.Models
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{
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class FileManager
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{
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// Controller
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private readonly MainPage UIController;
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public FileManager(MainPage uiController)
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{
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UIController = uiController;
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}
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/// <summary>
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/// sends chatlogs as json array to uiController wit corrosponding ip
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///
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/// in ui when chat is clicked connection gets established
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/// </summary>
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/// <param name="ip"></param>
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public void loadChats()
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{
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//load dir and create if non existant
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if (Directory.Exists("U:\\PolyChat\\Saves"))
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{
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Debug.WriteLine("--Path exists.--");
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}
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else
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{
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Directory.CreateDirectory("U:\\PolyChat\\Saves");
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Debug.WriteLine("--Path Created--.");
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}
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//go through all files and send ip and json array to ui
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String[] filepaths = Directory.GetFiles("U:\\PolyChat\\Saves");
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if (filepaths.Length > 0)
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{
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Debug.WriteLine("---Loading Saves");
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foreach (String path in filepaths)
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{
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Debug.WriteLine($"--{path}");
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String jsonArr = decrypt(File.ReadAllText(path));
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String ip = Path.GetFileName(path);
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ip = ip.Substring(0, ip.Length - 4);
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Debug.WriteLine($"-{ip}");
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Debug.WriteLine(jsonArr);
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UIController.OnIncomingConnection(ip);
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UIController.OnIncomingMessages(ip, jsonArr);
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}
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}
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}
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/// <summary>
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/// Saves incoming chat message to
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/// </summary>
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/// <param name="ip"></param>
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/// <param name="json"></param>
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public void saveChats(string ip, string json, DateTime timeStamp)
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{
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//Vielleicht noch so machen dass die mit gleicher ip nacheinander gemacht
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//werden damit es nicht zu überschreibungen kommt vielleicth auch ganz oben oder am ende ne
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//writing flag setzen oder auch in der datei selbst ne flag setzen
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new Thread(() =>
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{
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//breaking if namechange
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JObject obj = JObject.Parse(json);
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if (!obj["type"].ToString().Equals("username"))
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{
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//adding timestamp
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obj = JObject.Parse(json);
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obj.Add(new JProperty("timestamp", timeStamp));
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json = obj.ToString();
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if (File.Exists($"U:\\PolyChat\\Saves\\{ip}.txt"))
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{
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Debug.WriteLine("--File allready exists--");
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//check for integraty of file
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string output = decrypt(File.ReadAllText($"U:\\PolyChat\\Saves\\{ip}.txt"));
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Debug.WriteLine($"---{output}---");
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if (output.Substring(0, 1).Equals("[") && output.Substring(output.Length - 1, 1).Equals("]"))
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{
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Debug.WriteLine("--adding new chatmessage--");
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//structure intact
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//save new chat
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String saved = output.Substring(0, output.Length - 1);
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output = saved + ", " + json + " ]";
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File.Delete($"U:\\PolyChat\\Saves\\{ip}.txt");
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File.WriteAllText($"U:\\PolyChat\\Saves\\{ip}.txt", encrypt(output));
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}
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else
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{
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Debug.WriteLine("--Structure not intact--");
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Debug.WriteLine("--redoing file--");
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//structure not intact
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//redo file
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File.Delete($"U:\\PolyChat\\Saves\\{ip}.txt");
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File.WriteAllText($"U:\\PolyChat\\Saves\\{ip}.txt", encrypt($"[ {json} ]"));
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}
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}
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else
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{
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Debug.WriteLine("--Creating new File--");
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//setup file
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File.WriteAllText($"U:\\PolyChat\\Saves\\{ip}.txt", encrypt($"[ {json} ]"));
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}
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}
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}).Start();
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}
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//---------------------------------------------------------------------------------------------------
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//security
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//---------------------------------------------------------------------------------------------------
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private void genKeys()
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{
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}
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/// <summary>
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/// does exactly what it says. XD
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/// </summary>
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/// <param name="toEncrypt"></param>
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/// <returns></returns>
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public static String encrypt(String toEncrypt)
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{
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try {
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@@ -41,7 +160,11 @@ namespace PolyChat.Models
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}
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/// <summary>
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/// does exactly what it says. XD
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/// </summary>
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/// <param name="toEncrypt"></param>
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/// <returns></returns>
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public static String decrypt(String toDecrypt)
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{
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try
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