ryujinx/Ryujinx.HLE/HOS/Services/Time/TimeZone/TimeZoneContentManager.cs
Thog 8f21db810d
Reduce requirements for running homebrew (#1053)
* Reduce requirements for running homebrews

This commit change the following behaviours:

- TimeZoneBinary system archive isn't required until guest code call LoadTimeZoneRule.
- Fonts system archives aren't requred until a "pl:u" IPC call is made.
- Custom font support was dropped.
- TimeZoneBinary missing message is now an error and not a warning.

* Address comments
2020-03-30 08:23:05 +11:00

235 lines
8.3 KiB
C#

using LibHac;
using LibHac.Common;
using LibHac.Fs;
using LibHac.FsSystem;
using LibHac.FsSystem.NcaUtils;
using Ryujinx.Common.Logging;
using Ryujinx.Configuration;
using Ryujinx.HLE.Exceptions;
using Ryujinx.HLE.FileSystem;
using Ryujinx.HLE.FileSystem.Content;
using Ryujinx.HLE.HOS.Services.Time.Clock;
using Ryujinx.HLE.Utilities;
using System.Collections.Generic;
using System.IO;
using static Ryujinx.HLE.HOS.Services.Time.TimeZone.TimeZoneRule;
namespace Ryujinx.HLE.HOS.Services.Time.TimeZone
{
public class TimeZoneContentManager
{
private const long TimeZoneBinaryTitleId = 0x010000000000080E;
private readonly string TimeZoneSystemTitleMissingErrorMessage = "TimeZoneBinary system title not found! TimeZone conversions will not work, provide the system archive to fix this error. (See https://github.com/Ryujinx/Ryujinx#requirements for more information)";
private VirtualFileSystem _virtualFileSystem;
private IntegrityCheckLevel _fsIntegrityCheckLevel;
private ContentManager _contentManager;
public string[] LocationNameCache { get; private set; }
internal TimeZoneManager Manager { get; private set; }
public TimeZoneContentManager()
{
Manager = new TimeZoneManager();
}
public void InitializeInstance(VirtualFileSystem virtualFileSystem, ContentManager contentManager, IntegrityCheckLevel fsIntegrityCheckLevel)
{
_virtualFileSystem = virtualFileSystem;
_contentManager = contentManager;
_fsIntegrityCheckLevel = fsIntegrityCheckLevel;
InitializeLocationNameCache();
}
public string SanityCheckDeviceLocationName()
{
string locationName = ConfigurationState.Instance.System.TimeZone;
if (IsLocationNameValid(locationName))
{
return locationName;
}
Logger.PrintWarning(LogClass.ServiceTime, $"Invalid device TimeZone {locationName}, switching back to UTC");
ConfigurationState.Instance.System.TimeZone.Value = "UTC";
return "UTC";
}
internal void Initialize(TimeManager timeManager, Switch device)
{
InitializeInstance(device.FileSystem, device.System.ContentManager, device.System.FsIntegrityCheckLevel);
SteadyClockTimePoint timeZoneUpdatedTimePoint = timeManager.StandardSteadyClock.GetCurrentTimePoint(null);
string deviceLocationName = SanityCheckDeviceLocationName();
ResultCode result = GetTimeZoneBinary(deviceLocationName, out Stream timeZoneBinaryStream, out LocalStorage ncaFile);
if (result == ResultCode.Success)
{
// TODO: Read TimeZoneVersion from sysarchive.
timeManager.SetupTimeZoneManager(deviceLocationName, timeZoneUpdatedTimePoint, (uint)LocationNameCache.Length, new UInt128(), timeZoneBinaryStream);
ncaFile.Dispose();
}
else
{
// In the case the user don't have the timezone system archive, we just mark the manager as initialized.
Manager.MarkInitialized();
}
}
private void InitializeLocationNameCache()
{
if (HasTimeZoneBinaryTitle())
{
using (IStorage ncaFileStream = new LocalStorage(_virtualFileSystem.SwitchPathToSystemPath(GetTimeZoneBinaryTitleContentPath()), FileAccess.Read, FileMode.Open))
{
Nca nca = new Nca(_virtualFileSystem.KeySet, ncaFileStream);
IFileSystem romfs = nca.OpenFileSystem(NcaSectionType.Data, _fsIntegrityCheckLevel);
romfs.OpenFile(out IFile binaryListFile, "/binaryList.txt".ToU8Span(), OpenMode.Read).ThrowIfFailure();
StreamReader reader = new StreamReader(binaryListFile.AsStream());
List<string> locationNameList = new List<string>();
string locationName;
while ((locationName = reader.ReadLine()) != null)
{
locationNameList.Add(locationName);
}
LocationNameCache = locationNameList.ToArray();
}
}
else
{
LocationNameCache = new string[] { "UTC" };
Logger.PrintError(LogClass.ServiceTime, TimeZoneSystemTitleMissingErrorMessage);
}
}
private bool IsLocationNameValid(string locationName)
{
foreach (string cachedLocationName in LocationNameCache)
{
if (cachedLocationName.Equals(locationName))
{
return true;
}
}
return false;
}
public ResultCode SetDeviceLocationName(string locationName)
{
ResultCode result = GetTimeZoneBinary(locationName, out Stream timeZoneBinaryStream, out LocalStorage ncaFile);
if (result == ResultCode.Success)
{
result = Manager.SetDeviceLocationNameWithTimeZoneRule(locationName, timeZoneBinaryStream);
ncaFile.Dispose();
}
return result;
}
public ResultCode LoadLocationNameList(uint index, out string[] outLocationNameArray, uint maxLength)
{
List<string> locationNameList = new List<string>();
for (int i = 0; i < LocationNameCache.Length && i < maxLength; i++)
{
if (i < index)
{
continue;
}
string locationName = LocationNameCache[i];
// If the location name is too long, error out.
if (locationName.Length > 0x24)
{
outLocationNameArray = new string[0];
return ResultCode.LocationNameTooLong;
}
locationNameList.Add(locationName);
}
outLocationNameArray = locationNameList.ToArray();
return ResultCode.Success;
}
public string GetTimeZoneBinaryTitleContentPath()
{
return _contentManager.GetInstalledContentPath(TimeZoneBinaryTitleId, StorageId.NandSystem, NcaContentType.Data);
}
public bool HasTimeZoneBinaryTitle()
{
return !string.IsNullOrEmpty(GetTimeZoneBinaryTitleContentPath());
}
internal ResultCode GetTimeZoneBinary(string locationName, out Stream timeZoneBinaryStream, out LocalStorage ncaFile)
{
timeZoneBinaryStream = null;
ncaFile = null;
if (!HasTimeZoneBinaryTitle() || !IsLocationNameValid(locationName))
{
return ResultCode.TimeZoneNotFound;
}
ncaFile = new LocalStorage(_virtualFileSystem.SwitchPathToSystemPath(GetTimeZoneBinaryTitleContentPath()), FileAccess.Read, FileMode.Open);
Nca nca = new Nca(_virtualFileSystem.KeySet, ncaFile);
IFileSystem romfs = nca.OpenFileSystem(NcaSectionType.Data, _fsIntegrityCheckLevel);
Result result = romfs.OpenFile(out IFile timeZoneBinaryFile, $"/zoneinfo/{locationName}".ToU8Span(), OpenMode.Read);
timeZoneBinaryStream = timeZoneBinaryFile.AsStream();
return (ResultCode)result.Value;
}
internal ResultCode LoadTimeZoneRule(out TimeZoneRule outRules, string locationName)
{
outRules = new TimeZoneRule
{
Ats = new long[TzMaxTimes],
Types = new byte[TzMaxTimes],
Ttis = new TimeTypeInfo[TzMaxTypes],
Chars = new char[TzCharsArraySize]
};
if (!HasTimeZoneBinaryTitle())
{
throw new InvalidSystemResourceException(TimeZoneSystemTitleMissingErrorMessage);
}
ResultCode result = GetTimeZoneBinary(locationName, out Stream timeZoneBinaryStream, out LocalStorage ncaFile);
if (result == ResultCode.Success)
{
result = Manager.ParseTimeZoneRuleBinary(out outRules, timeZoneBinaryStream);
ncaFile.Dispose();
}
return result;
}
}
}