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annotate ServerMonitor/Helpers.cs @ 5:b6fe203af9d5

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Private key passwords and validation
author Brad Greco <brad@bgreco.net>
date Thu, 28 Feb 2019 21:19:32 -0500
parents 3142e52cbe69
children 052aa62cb42a
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5
b6fe203af9d5 Private key passwords and validation
Brad Greco <brad@bgreco.net>
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1 using Renci.SshNet;
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2 using Renci.SshNet.Common;
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3 using ServerMonitorApp.Properties;
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4 using System;
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5 using System.Collections.Generic;
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6 using System.ComponentModel;
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7 using System.Drawing;
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8 using System.Linq;
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9 using System.Net.NetworkInformation;
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10 using System.Text;
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11 using System.Windows.Forms;
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12
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13 namespace ServerMonitorApp
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14 {
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15 static class Helpers
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16 {
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17 public static void FormatImageButton(Button button)
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18 {
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19 button.Image = new Bitmap(button.Image, button.Height - 8, button.Height - 8);
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20 }
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21
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22 public static string GetAllMessages(this Exception ex)
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23 {
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24 return "\t" + (ex.InnerException == null ? ex.Message : ex.Message + Environment.NewLine + ex.InnerException.GetAllMessages());
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25 }
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26
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27 public static string GetDisplayName(Type type)
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28 {
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29 return type?.GetAttribute<DisplayNameAttribute>()?.DisplayName ?? type?.Name ?? "null";
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30 }
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31
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32 public static bool IsNullOrEmpty(this string aString)
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33 {
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34 return aString == null || aString.Trim() == string.Empty;
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35 }
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36
2
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37 public static string ConvertNewlines(this string aString)
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38 {
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39 return aString.Replace("\r\n", "\n").Replace('\r', '\n');
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40 }
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41
0
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42 public static T GetAttribute<T>(this Type type) where T : Attribute
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43 {
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44 return type.GetCustomAttributes(typeof(T), false).SingleOrDefault() as T;
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45 }
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46
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47 public static Image GetIcon(this CheckStatus checkStatus)
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48 {
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49 switch (checkStatus)
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50 {
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51 case CheckStatus.Error: return Resources.error;
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52 case CheckStatus.Warning: return Resources.warning;
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53 case CheckStatus.Information: return Resources.info;
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54 case CheckStatus.Success: return Resources.pass;
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55 case CheckStatus.Running: return Resources.run;
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56 case CheckStatus.Disabled: return Resources.disable;
0
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57 default: return null;
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58 }
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59 }
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60
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61 public static bool In(this Enum value, params Enum[] values) {
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62 return values.Contains(value);
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63 }
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64
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65 // https://stackoverflow.com/a/8345173
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66 /// <summary>
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67 /// Indicates whether any network connection is available.
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68 /// Filter connections below a specified speed, as well as virtual network cards.
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69 /// </summary>
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70 /// <returns>
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71 /// <c>true</c> if a network connection is available; otherwise, <c>false</c>.
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72 /// </returns>
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73 public static bool IsNetworkAvailable()
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74 {
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75 if (!NetworkInterface.GetIsNetworkAvailable())
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76 return false;
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77
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78 foreach (NetworkInterface ni in NetworkInterface.GetAllNetworkInterfaces())
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79 {
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80 // discard because of standard reasons
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81 if ((ni.OperationalStatus != OperationalStatus.Up) ||
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82 (ni.NetworkInterfaceType == NetworkInterfaceType.Loopback) ||
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83 (ni.NetworkInterfaceType == NetworkInterfaceType.Tunnel))
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84 continue;
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85
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86 // discard virtual cards (virtual box, virtual pc, etc.)
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87 if ((ni.Description.IndexOf("virtual", StringComparison.OrdinalIgnoreCase) >= 0) ||
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88 (ni.Name.IndexOf("virtual", StringComparison.OrdinalIgnoreCase) >= 0))
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89 continue;
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90
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91 // discard "Microsoft Loopback Adapter", it will not show as NetworkInterfaceType.Loopback but as Ethernet Card.
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92 if (ni.Description.Equals("Microsoft Loopback Adapter", StringComparison.OrdinalIgnoreCase))
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93 continue;
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94
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95 return true;
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96 }
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97 return false;
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98 }
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99 }
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100 }