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using LibHac.Fs;
using LibHac.Fs.NcaUtils;
using Ryujinx.Common.Logging;
using Ryujinx.HLE.FileSystem;
using Ryujinx.HLE.HOS.Services.Time.Clock;
using Ryujinx.HLE.Resource;
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
{
class TimeZoneContentManager
{
private const long TimeZoneBinaryTitleId = 0x010000000000080E;
private Switch _device;
private string[] _locationNameCache;
public TimeZoneManager Manager { get; private set; }
public TimeZoneContentManager()
{
Manager = new TimeZoneManager();
}
internal void Initialize(TimeManager timeManager, Switch device)
{
_device = device;
InitializeLocationNameCache();
SteadyClockTimePoint timeZoneUpdatedTimePoint = timeManager.StandardSteadyClock.GetCurrentTimePoint(null);
ResultCode result = GetTimeZoneBinary("UTC", out Stream timeZoneBinaryStream);
if (result == ResultCode.Success)
{
// TODO: Read TimeZoneVersion from sysarchive.
timeManager.SetupTimeZoneManager("UTC", timeZoneUpdatedTimePoint, (uint)_locationNameCache.Length, new UInt128(), timeZoneBinaryStream);
}
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(_device.FileSystem.SwitchPathToSystemPath(GetTimeZoneBinaryTitleContentPath()), FileAccess.Read, FileMode.Open))
{
Nca nca = new Nca(_device.System.KeySet, ncaFileStream);
IFileSystem romfs = nca.OpenFileSystem(NcaSectionType.Data, _device.System.FsIntegrityCheckLevel);
Stream binaryListStream = romfs.OpenFile("binaryList.txt", OpenMode.Read).AsStream();
StreamReader reader = new StreamReader(binaryListStream);
List<string> locationNameList = new List<string>();
string locationName;
while ((locationName = reader.ReadLine()) != null)
{
locationNameList.Add(locationName);
}
_locationNameCache = locationNameList.ToArray();
}
}
else
{
_locationNameCache = new string[0];
Logger.PrintWarning(LogClass.ServiceTime, "TimeZoneBinary system title not found! TimeZone conversions will not work, provide the system archive to fix this warning. (See https://github.com/Ryujinx/Ryujinx#requirements for more informations)");
}
}
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);
if (result == ResultCode.Success)
{
result = Manager.SetDeviceLocationNameWithTimeZoneRule(locationName, timeZoneBinaryStream);
}
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 _device.System.ContentManager.GetInstalledContentPath(TimeZoneBinaryTitleId, StorageId.NandSystem, ContentType.Data);
}
public bool HasTimeZoneBinaryTitle()
{
return !string.IsNullOrEmpty(GetTimeZoneBinaryTitleContentPath());
}
internal ResultCode GetTimeZoneBinary(string locationName, out Stream timeZoneBinaryStream)
{
timeZoneBinaryStream = null;
if (!IsLocationNameValid(locationName))
{
return ResultCode.TimeZoneNotFound;
}
using (IStorage ncaFileStream = new LocalStorage(_device.FileSystem.SwitchPathToSystemPath(GetTimeZoneBinaryTitleContentPath()), FileAccess.Read, FileMode.Open))
{
Nca nca = new Nca(_device.System.KeySet, ncaFileStream);
IFileSystem romfs = nca.OpenFileSystem(NcaSectionType.Data, _device.System.FsIntegrityCheckLevel);
timeZoneBinaryStream = romfs.OpenFile($"zoneinfo/{locationName}", OpenMode.Read).AsStream();
}
return ResultCode.Success;
}
internal ResultCode LoadTimeZoneRule(out TimeZoneRule outRules, string locationName)
{
outRules = new TimeZoneRule
{
Ats = new long[TzMaxTimes],
Types = new byte[TzMaxTimes],
Ttis = new TimeTypeInfo[TzMaxTypes],
Chars = new char[TzCharsArraySize]
};
if (!HasTimeZoneBinaryTitle())
{
throw new InvalidSystemResourceException($"TimeZoneBinary system title not found! Please provide it. (See https://github.com/Ryujinx/Ryujinx#requirements for more informations)");
}
ResultCode result = GetTimeZoneBinary(locationName, out Stream timeZoneBinaryStream);
if (result == ResultCode.Success)
{
result = Manager.ParseTimeZoneRuleBinary(out outRules, timeZoneBinaryStream);
}
return result;
}
}
}
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