code.grnet.gr Git - pithos-ms-client/blob - trunk/Pithos.Client.WPF/Shell/FeedbackViewModel.cs

   1 // -----------------------------------------------------------------------
   2 // <copyright file="FeedbackViewModel.cs" company="Microsoft">
   3 // TODO: Update copyright text.
   4 // </copyright>
   5 // -----------------------------------------------------------------------
   6
   7 using System.ComponentModel.Composition;
   8 using System.IO;
   9 using System.Net;
  10 using System.Reflection;
  11 using System.Windows;
  12 using Caliburn.Micro;
  13 using Pithos.Client.WPF.Properties;
  14
  15 namespace Pithos.Client.WPF.Shell
  16 {
  17     using System;
  18     using System.Collections.Generic;
  19     using System.Linq;
  20     using System.Text;
  21
  22     /// <summary>
  23     /// TODO: Update summary.
  24     /// </summary>
  25     [Export(typeof(FeedbackViewModel))]
  26     public class FeedbackViewModel:Screen
  27     {
  28         public string Message { get; set; }
  29
  30         public string Data { get; set; }
  31
  32         private IWindowManager _windowManager;
  33
  34         private static readonly log4net.ILog Log = log4net.LogManager.GetLogger("Pithos");
  35
  36
  37         [ImportingConstructor]
  38         public FeedbackViewModel(IWindowManager windowManager)
  39         {
  40             _windowManager = windowManager;
  41             Data = GetBasicData() ;
  42         }
  43
  44         public void AppendData(string data)
  45         {
  46             Data = Data + "\r\n" + data;
  47         }
  48
  49         private string GetBasicData()
  50         {
  51             var assembly = Assembly.GetExecutingAssembly();
  52             var attributes = assembly.GetCustomAttributes(false);
  53             var versionAtt = attributes.OfType<AssemblyInformationalVersionAttribute>().First();
  54             var fileVersion = attributes.OfType<AssemblyFileVersionAttribute>().First();
  55
  56
  57             var builder = new StringBuilder();
  58
  59             builder.AppendLine("Pithos Windows Client")
  60                 .Append('-', 30)
  61                 .AppendLine()
  62                 .AppendFormat("Released: {0}\r\n", versionAtt.InformationalVersion)
  63                 .AppendFormat("File Version: {0}\r\n", fileVersion.Version)
  64                 .AppendFormat("Assembly Version: {0}\r\n", assembly.GetName().Version)
  65                 .AppendFormat("OS: {0} 64Bit: {1}\r\n",Environment.OSVersion,Environment.Is64BitOperatingSystem)
  66                 .AppendFormat("Wokring Set: {0} bytes\r\n", Environment.WorkingSet)
  67                 .AppendFormat("Processors: {0} \r\n", Environment.ProcessorCount)
  68                 .Append('=', 30)
  69                 .AppendLine();
  70             var basicData = builder.ToString();
  71             return basicData;
  72
  73         }
  74
  75         public void Send()
  76         {
  77             var message = "Pithos Windows Client Feedback:\r\n" +Message;
  78             var fields = new Dictionary<string, string> { { "feedback-msg", message }, { "feedback-data", Data } };
  79             try
  80             {
  81                 PostForm(Settings.Default.FeedbackUri, fields);
  82             }
  83             catch (Exception exc)
  84             {
  85                 Log.Error("Failed to submit feedback",exc);
  86                 MessageBox.Show("There was an error while submitting your feedback. The error was logged", "Failed to submit feedback",
  87                                 MessageBoxButton.OK, MessageBoxImage.Error);
  88             }
  89
  90             TryClose();
  91         }
  92
  93         private async void PostForm(string formUrl, Dictionary<string, string> fields)
  94         {
  95             var request = WebRequest.Create(formUrl);
  96             request.Method = "POST";
  97
  98             var builder = new StringBuilder();
  99             foreach (var field in fields)
 100             {
 101                 builder.AppendFormat("{0}={1}&", field.Key, Uri.EscapeDataString(field.Value));
 102             }
 103
 104             var postData = builder.ToString().TrimEnd('&');
 105             var byteArray = Encoding.UTF8.GetBytes(postData);
 106
 107             request.ContentType = "application/x-www-form-urlencoded";
 108             request.ContentLength = byteArray.Length;
 109             using (var stream = request.GetRequestStream())
 110             {
 111                 stream.Write(byteArray, 0, byteArray.Length);
 112             }
 113
 114
 115             // Get the response.
 116             var response = await request.GetResponseAsync();
 117
 118
 119             var webResponse = ((HttpWebResponse)response);
 120             var result=webResponse.StatusCode;
 121             if (result != HttpStatusCode.OK)
 122             {
 123                 // Get the stream containing content returned by the server.
 124                 using (var responseStream = webResponse.GetResponseStream())
 125                 using (var reader = new StreamReader(responseStream))
 126                 {
 127                     var responseFromServer = reader.ReadToEnd();
 128                     Log.WarnFormat("Unexpected status returned from feedback form: {0} - {1}\r\n{2}",result,webResponse.StatusDescription, responseFromServer);
 129                 }
 130             }
 131             response.Close();
 132         }
 133     }
 134 }