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ChocolateyFactory.cs
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ChocolateyFactory.cs
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using Klocman.Tools;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text;
using UninstallTools.Properties;
namespace UninstallTools.Factory
{
public sealed class ChocolateyFactory : IIndependantUninstallerFactory
{
private static bool? _chocoIsAvailable;
private static string _chocoLocation;
private static string ChocoFullFilename
{
get
{
if (_chocoLocation == null)
GetChocoInfo();
return _chocoLocation;
}
}
private static bool ChocoIsAvailable
{
get
{
if (!_chocoIsAvailable.HasValue)
{
_chocoIsAvailable = false;
GetChocoInfo();
}
return _chocoIsAvailable.Value;
}
}
private static void GetChocoInfo()
{
try
{
var chocoPath = PathTools.GetFullPathOfExecutable("choco.exe");
if (string.IsNullOrEmpty(chocoPath)) return;
var result = StartProcessAndReadOutput(chocoPath, string.Empty);
if (result.StartsWith("Chocolatey", StringComparison.Ordinal))
{
_chocoLocation = chocoPath;
_chocoIsAvailable = true;
}
}
catch (SystemException ex)
{
Console.WriteLine(ex);
}
}
private static readonly string[] NewlineSeparators = StringTools.NewLineChars.ToArray();
public IList<ApplicationUninstallerEntry> GetUninstallerEntries(ListGenerationProgress.ListGenerationCallback progressCallback)
{
var results = new List<ApplicationUninstallerEntry>();
if (!ChocoIsAvailable) return results;
var result = StartProcessAndReadOutput(ChocoFullFilename, @"list -l -nocolor -y -r");
if (string.IsNullOrEmpty(result)) return results;
var appEntries = result.Split(NewlineSeparators, StringSplitOptions.RemoveEmptyEntries);
var appNames = appEntries.Select(x =>
{
var i = x.IndexOf('|');
if (i <= 0) return null;
return new { name = x.Substring(0, i), version = x.Substring(i + 1) };
}).Where(x => x != null);
foreach (var appName in appNames)
{
var info = StartProcessAndReadOutput(ChocoFullFilename, "info -l -nocolor -y -v " + appName.name);
var kvps = ExtractPackageInformation(info);
if (kvps.Count == 0) continue;
var entry = new ApplicationUninstallerEntry();
AddInfo(entry, kvps, "Title", (e, s) => e.RawDisplayName = s);
entry.DisplayVersion = ApplicationEntryTools.CleanupDisplayVersion(appName.version);
entry.RatingId = "Choco " + appName.name;
entry.UninstallerKind = UninstallerType.Chocolatey;
AddInfo(entry, kvps, "Summary", (e, s) => e.Comment = s);
if (string.IsNullOrEmpty(entry.Comment))
{
AddInfo(entry, kvps, "Description", (e, s) => e.Comment = s);
if (string.IsNullOrEmpty(entry.Comment))
AddInfo(entry, kvps, "Tags", (e, s) => e.Comment = s);
}
AddInfo(entry, kvps, "Documentation", (e, s) => e.AboutUrl = s);
if (string.IsNullOrEmpty(entry.AboutUrl))
{
AddInfo(entry, kvps, "Software Site", (e, s) => e.AboutUrl = s);
if (string.IsNullOrEmpty(entry.AboutUrl))
AddInfo(entry, kvps, "Chocolatey Package Source", (e, s) => e.AboutUrl = s);
}
var psc = new ProcessStartCommand(ChocoFullFilename, $"uninstall {appName.name} -y -r");
entry.UninstallString = psc.ToString();
if (entry.RawDisplayName == "Chocolatey")
entry.InstallLocation = GetChocoInstallLocation();
// Prevent chocolatey from trying to run the original uninstaller (it's deleted by now), only remove the package
psc.Arguments += " -n --skipautouninstaller";
var junk = new Junk.Containers.RunProcessJunk(entry, null, psc, Localisation.ChocolateyFactory_UninstallInChocolateyJunkName);
junk.Confidence.Add(Junk.Confidence.ConfidenceRecords.ExplicitConnection);
junk.Confidence.Add(4);
entry.AdditionalJunk.Add(junk);
results.Add(entry);
}
return results;
}
private static string GetChocoInstallLocation()
{
// The path is C:\ProgramData\chocolatey\bin\choco.exe OR C:\ProgramData\chocolatey\choco.exe
var chocoLocation = Path.GetDirectoryName(ChocoFullFilename);
if (chocoLocation != null && chocoLocation.EndsWith(@"\bin", StringComparison.OrdinalIgnoreCase))
return chocoLocation.Substring(0, chocoLocation.Length - 4);
return chocoLocation;
}
private static void AddInfo(ApplicationUninstallerEntry target, Dictionary<string, string> source,
string key, Action<ApplicationUninstallerEntry, string> setter)
{
if (source.TryGetValue(key, out var val))
{
try
{
setter(target, val);
}
catch (SystemException ex)
{
Console.WriteLine(@"Exception while extracting info from choco: " + ex.Message);
}
}
}
private static Dictionary<string, string> ExtractPackageInformation(string result)
{
// Parse the console output into lines, then into key-value pairs
var lines = result.Split(NewlineSeparators, StringSplitOptions.RemoveEmptyEntries)
.Where(x => x.Length > 2 && x[0] == ' ' && x[1] != ' ' && x.Contains(": "))
.Select(x => x.TrimStart())
.SelectMany(x => x.Split(new[] { " | " }, StringSplitOptions.None));
var kvps = new Dictionary<string, string>();
foreach (var line in lines)
{
var i = line.IndexOf(": ", StringComparison.Ordinal);
if (i <= 0) continue;
var key = line.Substring(0, i);
var val = line.Substring(i + 2);
if (string.IsNullOrEmpty(key) || string.IsNullOrEmpty(val)) continue;
kvps.Add(key, val);
}
return kvps;
}
public bool IsEnabled() => UninstallToolsGlobalConfig.ScanChocolatey;
public string DisplayName => Localisation.Progress_AppStores_Chocolatey;
private static string StartProcessAndReadOutput(string filename, string args)
{
using (var process = Process.Start(new ProcessStartInfo(filename, args)
{
UseShellExecute = false,
RedirectStandardOutput = true,
RedirectStandardError = false,
CreateNoWindow = true,
StandardOutputEncoding = Encoding.Default
}))
{
var sw = Stopwatch.StartNew();
var output = process?.StandardOutput.ReadToEnd();
Console.WriteLine($"[Performance] Running command {filename} {args} took {sw.ElapsedMilliseconds}ms");
return output;
}
}
}
}