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Add bitcoin core password recovery option to UI
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‎Src/FinderOuter/ViewModels/CorePassViewModel.cs

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// The FinderOuter
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// Copyright (c) 2020 Coding Enthusiast
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// Distributed under the MIT software license, see the accompanying
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// file LICENCE or http://www.opensource.org/licenses/mit-license.php.
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using FinderOuter.Backend;
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using FinderOuter.Models;
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using FinderOuter.Services;
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using FinderOuter.Services.SearchSpaces;
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using ReactiveUI;
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using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Diagnostics;
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using System.Linq;
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namespace FinderOuter.ViewModels
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{
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public class CorePassViewModel : OptionVmBase
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{
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// Makes designer happy!
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public CorePassViewModel() : this(new Settings())
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{
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}
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public CorePassViewModel(Settings settings)
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{
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Result.Settings = settings;
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Service = new(Result);
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IObservable<bool> isFindEnabled = this.WhenAnyValue(
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x => x.Input,
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x => x.Result.CurrentState,
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(mn, state) =>
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!string.IsNullOrEmpty(mn) &&
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state != State.Working);
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FindCommand = ReactiveCommand.Create(Find, isFindEnabled);
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IObservable<bool> isExampleEnable = this.WhenAnyValue(x => x.Result.CurrentState, (state) => state != State.Working);
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ExampleCommand = ReactiveCommand.Create(Example, isExampleEnable);
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SetExamples(GetExampleData());
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IObservable<bool> canAdd = this.WhenAnyValue(x => x.IsProcessed, (b) => b == true);
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StartCommand = ReactiveCommand.Create(Start, isFindEnabled);
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AddCommand = ReactiveCommand.Create(Add, canAdd);
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AddAllCommand = ReactiveCommand.Create(AddAll, canAdd);
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AddLowerCommand = ReactiveCommand.Create(AddLower, canAdd);
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AddUpperCommand = ReactiveCommand.Create(AddUpper, canAdd);
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AddNumberCommand = ReactiveCommand.Create(AddNumber, canAdd);
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AddSymbolCommand = ReactiveCommand.Create(AddSymbol, canAdd);
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CopyCommand = ReactiveCommand.Create(Copy, isFindEnabled);
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}
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public override string OptionName => "Bitcoin Core wallet pass";
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public override string Description => $"This option can recover bitcoin core wallet.dat encryption password." +
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$"{Environment.NewLine}";
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public static string PassLenToolTip => "Number of words in the passphrase.";
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private readonly CorePassSearchSpace searchSpace = new();
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public CorePassService Service { get; }
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public IFileManager FileMan { get; set; } = new FileManager();
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private int _passLen = 1;
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public int PassLength
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{
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get => _passLen;
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set
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{
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if (value < 1)
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value = 1;
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if (value != _passLen)
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{
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this.RaiseAndSetIfChanged(ref _passLen, value);
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isChanged = true;
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}
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}
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}
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private string _ores;
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public string OpenResult
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{
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get => _ores;
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set => this.RaiseAndSetIfChanged(ref _ores, value);
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}
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public async void Open()
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{
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string[] res = await FileMan.OpenAsync();
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OpenResult = $"Number of items:{Environment.NewLine}{res.Length:n0}";
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searchSpace.AllWords = res;
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isChanged = true;
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}
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private void Start()
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{
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InitSearchSpace();
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IsProcessed = searchSpace.Process(Input, PassLength, out string error);
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FinishSearchSpace(searchSpace.PasswordLength, error);
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}
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private void AddToList(IEnumerable<string> items)
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{
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foreach (string item in items)
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{
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if (!CurrentItems.Contains(item))
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{
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CurrentItems.Add(item);
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}
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}
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}
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public IReactiveCommand AddAllCommand { get; }
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private void AddAll()
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{
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if (searchSpace.AllWords is not null && searchSpace.AllWords.Length != 0)
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{
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AddToList(searchSpace.AllWords);
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}
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else
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{
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Result.AddMessage("No password list is defined yet. Use the \"Open\" button to set it.");
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}
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}
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public IReactiveCommand AddCommand { get; }
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private void Add()
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{
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// TODO: should we add a warning about extra spaces here?
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if (!string.IsNullOrEmpty(ToAdd))
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{
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if (!CurrentItems.Contains(ToAdd))
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{
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CurrentItems.Add(ToAdd);
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ToAdd = string.Empty;
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}
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else
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{
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Result.AddMessage($"\"{ToAdd}\" is already in the list.");
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}
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}
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}
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public IReactiveCommand AddLowerCommand { get; }
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private void AddLower()
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{
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AddToList(ConstantsFO.LowerCase.ToCharArray().Select(c => c.ToString()));
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}
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public IReactiveCommand AddUpperCommand { get; }
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private void AddUpper()
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{
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AddToList(ConstantsFO.UpperCase.ToCharArray().Select(c => c.ToString()));
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}
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public IReactiveCommand AddNumberCommand { get; }
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private void AddNumber()
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{
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AddToList(ConstantsFO.Numbers.ToCharArray().Select(c => c.ToString()));
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}
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public IReactiveCommand AddSymbolCommand { get; }
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private void AddSymbol()
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{
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AddToList(ConstantsFO.AllSymbols.ToCharArray().Select(c => c.ToString()));
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}
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public override async void Find()
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{
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if (isChanged && IsProcessed)
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{
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MessageBoxResult res = await WinMan.ShowMessageBox(MessageBoxType.YesNo, ConstantsFO.ChangedMessage);
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if (res == MessageBoxResult.Yes)
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{
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IsProcessed = false;
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}
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else
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{
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ResetSearchSpace();
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return;
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}
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}
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if (!IsProcessed)
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{
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if (searchSpace.AllWords is null || searchSpace.AllWords.Length == 0)
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{
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Result.AddMessage("No password list is defined yet. Use the \"Open\" button to set it.");
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return;
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}
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Start();
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foreach (ObservableCollection<string> item in allItems)
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{
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foreach (string word in searchSpace.AllWords)
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{
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item.Add(word);
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}
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}
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}
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if (IsProcessed)
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{
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if (searchSpace.SetValues(allItems.Select(x => x.ToArray()).ToArray(), out string error))
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{
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Service.Find(searchSpace);
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ResetSearchSpace();
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}
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else
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{
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Result.AddMessage(error);
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}
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}
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}
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public void Example()
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{
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object[] ex = GetNextExample();
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Input = (string)ex[0];
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PassLength = (int)ex[1];
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Start();
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Debug.Assert(allItems.Length == PassLength);
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string[][] items = (string[][])ex[2];
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for (int i = 0; i < items.Length; i++)
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{
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foreach (var item in items[i])
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{
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allItems[i].Add(item);
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}
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}
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Result.Message = $"Example {exampleIndex} of {totalExampleCount}. Source: {(string)ex[3]}";
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}
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private ExampleData GetExampleData()
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{
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return new ExampleData<string, int, string[][], string>()
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{
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{
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"43000130ac71182a748152bb788fb9deb11f2f5a55f5e848d66586747cc000826d4c0c350032153d50cbf924a2ac1dc5f6279436089ca0271b64c0e66f00000000c6fe040000",
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2, // Pass length
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new string[2][]
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{
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new string[5] { "master", "M@ster", "Master", "MaStEr", "m@ster" },
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new string[4] { "exploder", "ExPlOreR", "Expl0der", "Exploder" },
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},
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$"Taken from https://bitcointalk.org/index.php?topic=5511431.msg64607294#msg64607294{Environment.NewLine}" +
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$"This is a random encryption key with a 2 word passphrase (MasterExploder). " +
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$"You can see how a possible list of words for each word is set." +
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$"{Environment.NewLine}" +
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$"Estimated time: ~1 sec"
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},
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};
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}
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}
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}

‎Src/FinderOuter/ViewModels/MainWindowViewModel.cs

Lines changed: 5 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -24,6 +24,7 @@ public MainWindowViewModel()
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new MissingBase58ViewModel(Settings),
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new MissingMiniPrivateKeyViewModel(Settings),
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new MissingBip38PassViewModel(Settings),
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new CorePassViewModel(Settings),
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new MissingMnemonicViewModel(Settings),
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new MissingMnemonicPassViewModel(Settings),
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new MissingBip32PathViewModel(),
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if (item is MissingBip38PassViewModel b38)
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{
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b38.FileMan.StorageProvider = value;
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return;
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}
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else if (item is CorePassViewModel core)
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{
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core.FileMan.StorageProvider = value;
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}
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}
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}

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