Ryujinx/Ryujinx.HLE/HOS/Applets/Error/ErrorApplet.cs

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C#
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2020-09-27 22:00:38 +00:00
using LibHac.Common;
using LibHac.Fs;
using LibHac.Fs.Fsa;
using LibHac.FsSystem;
using LibHac.FsSystem.NcaUtils;
using Ryujinx.Common.Logging;
using Ryujinx.HLE.FileSystem;
using Ryujinx.HLE.HOS.Services.Am.AppletAE;
using Ryujinx.HLE.HOS.SystemState;
using System;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Text.RegularExpressions;
namespace Ryujinx.HLE.HOS.Applets.Error
{
internal class ErrorApplet : IApplet
{
private const long ErrorMessageBinaryTitleId = 0x0100000000000801;
private Horizon _horizon;
private AppletSession _normalSession;
private CommonArguments _commonArguments;
private ErrorCommonHeader _errorCommonHeader;
private byte[] _errorStorage;
public event EventHandler AppletStateChanged;
public ErrorApplet(Horizon horizon)
{
_horizon = horizon;
}
public ResultCode Start(AppletSession normalSession,
AppletSession interactiveSession)
{
_normalSession = normalSession;
_commonArguments = IApplet.ReadStruct<CommonArguments>(_normalSession.Pop());
Logger.Info?.PrintMsg(LogClass.ServiceAm, $"ErrorApplet version: 0x{_commonArguments.AppletVersion:x8}");
_errorStorage = _normalSession.Pop();
_errorCommonHeader = IApplet.ReadStruct<ErrorCommonHeader>(_errorStorage);
_errorStorage = _errorStorage.Skip(Marshal.SizeOf(typeof(ErrorCommonHeader))).ToArray();
switch (_errorCommonHeader.Type)
{
case ErrorType.ErrorCommonArg:
{
ParseErrorCommonArg();
break;
}
default: throw new NotImplementedException($"ErrorApplet type {_errorCommonHeader.Type} is not implemented.");
}
AppletStateChanged?.Invoke(this, null);
return ResultCode.Success;
}
private (uint module, uint description) HexToResultCode(uint resultCode)
{
return ((resultCode & 0x1FF) + 2000, (resultCode >> 9) & 0x3FFF);
}
private string SystemLanguageToLanguageKey(SystemLanguage systemLanguage)
{
return systemLanguage switch
{
SystemLanguage.Japanese => "ja",
SystemLanguage.AmericanEnglish => "en-US",
SystemLanguage.French => "fr",
SystemLanguage.German => "de",
SystemLanguage.Italian => "it",
SystemLanguage.Spanish => "es",
SystemLanguage.Chinese => "zh-Hans",
SystemLanguage.Korean => "ko",
SystemLanguage.Dutch => "nl",
SystemLanguage.Portuguese => "pt",
SystemLanguage.Russian => "ru",
SystemLanguage.Taiwanese => "zh-HansT",
SystemLanguage.BritishEnglish => "en-GB",
SystemLanguage.CanadianFrench => "fr-CA",
SystemLanguage.LatinAmericanSpanish => "es-419",
SystemLanguage.SimplifiedChinese => "zh-Hans",
SystemLanguage.TraditionalChinese => "zh-Hant",
_ => "en-US"
};
}
public string CleanText(string value)
{
return Regex.Replace(Encoding.Unicode.GetString(Encoding.UTF8.GetBytes(value)), @"[^\u0009\u000A\u000D\u0020-\u007E]", "");
}
private string GetMessageText(uint module, uint description, string key)
{
string binaryTitleContentPath = _horizon.ContentManager.GetInstalledContentPath(ErrorMessageBinaryTitleId, StorageId.NandSystem, NcaContentType.Data);
using (LibHac.Fs.IStorage ncaFileStream = new LocalStorage(_horizon.Device.FileSystem.SwitchPathToSystemPath(binaryTitleContentPath), FileAccess.Read, FileMode.Open))
{
Nca nca = new Nca(_horizon.Device.FileSystem.KeySet, ncaFileStream);
IFileSystem romfs = nca.OpenFileSystem(NcaSectionType.Data, _horizon.FsIntegrityCheckLevel);
string languageCode = SystemLanguageToLanguageKey(_horizon.State.DesiredSystemLanguage);
string filePath = "/" + Path.Combine(module.ToString(), $"{description:0000}", $"{languageCode}_{key}").Replace(@"\", "/");
if (romfs.FileExists(filePath))
{
romfs.OpenFile(out IFile binaryFile, filePath.ToU8Span(), OpenMode.Read).ThrowIfFailure();
StreamReader reader = new StreamReader(binaryFile.AsStream());
return CleanText(reader.ReadToEnd());
}
else
{
return "";
}
}
}
private string[] GetButtonsText(uint module, uint description, string key)
{
string buttonsText = GetMessageText(module, description, key);
return (buttonsText == "") ? null : buttonsText.Split(new[] { "\r\n", "\r", "\n" }, StringSplitOptions.None);
}
private void ParseErrorCommonArg()
{
ErrorCommonArg errorCommonArg = IApplet.ReadStruct<ErrorCommonArg>(_errorStorage);
uint module = errorCommonArg.Module;
uint description = errorCommonArg.Description;
if (_errorCommonHeader.MessageFlag == 0)
{
(module, description) = HexToResultCode(errorCommonArg.ResultCode);
}
string message = GetMessageText(module, description, "DlgMsg");
if (message == "")
{
message = "An error has occured.\n\n"
+ "Please try again later.\n\n"
+ "If the problem persists, please refer to the Ryujinx website.\n"
+ "www.ryujinx.org";
}
string[] buttons = GetButtonsText(module, description, "DlgBtn");
bool showDetails = _horizon.Device.UiHandler.DisplayErrorAppletDialog($"Error Code: {module}-{description:0000}", "\n" + message, buttons);
if (showDetails)
{
message = GetMessageText(module, description, "FlvMsg");
buttons = GetButtonsText(module, description, "FlvBtn");
_horizon.Device.UiHandler.DisplayErrorAppletDialog($"Details: {module}-{description:0000}", "\n" + message, buttons);
}
}
public ResultCode GetResult()
{
return ResultCode.Success;
}
}
}