mirror of
https://github.com/Ryujinx/Ryujinx.git
synced 2024-12-27 02:06:01 +00:00
304 lines
11 KiB
C#
304 lines
11 KiB
C#
using LibHac;
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using LibHac.Common;
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using LibHac.Fs;
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using LibHac.Fs.Fsa;
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using LibHac.FsSystem;
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using LibHac.FsSystem.NcaUtils;
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using Ryujinx.Common.Logging;
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using Ryujinx.Configuration;
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using Ryujinx.HLE.Exceptions;
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using Ryujinx.HLE.FileSystem;
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using Ryujinx.HLE.FileSystem.Content;
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using Ryujinx.HLE.HOS.Services.Time.Clock;
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using Ryujinx.HLE.Utilities;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using static Ryujinx.HLE.HOS.Services.Time.TimeZone.TimeZoneRule;
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namespace Ryujinx.HLE.HOS.Services.Time.TimeZone
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{
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public class TimeZoneContentManager
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{
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private const long TimeZoneBinaryTitleId = 0x010000000000080E;
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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/wiki/Ryujinx-Setup-&-Configuration-Guide#initial-setup-continued---installation-of-firmware for more information)";
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private VirtualFileSystem _virtualFileSystem;
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private IntegrityCheckLevel _fsIntegrityCheckLevel;
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private ContentManager _contentManager;
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public string[] LocationNameCache { get; private set; }
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internal TimeZoneManager Manager { get; private set; }
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public TimeZoneContentManager()
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{
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Manager = new TimeZoneManager();
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}
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public void InitializeInstance(VirtualFileSystem virtualFileSystem, ContentManager contentManager, IntegrityCheckLevel fsIntegrityCheckLevel)
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{
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_virtualFileSystem = virtualFileSystem;
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_contentManager = contentManager;
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_fsIntegrityCheckLevel = fsIntegrityCheckLevel;
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InitializeLocationNameCache();
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}
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public string SanityCheckDeviceLocationName()
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{
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string locationName = ConfigurationState.Instance.System.TimeZone;
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if (IsLocationNameValid(locationName))
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{
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return locationName;
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}
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Logger.Warning?.Print(LogClass.ServiceTime, $"Invalid device TimeZone {locationName}, switching back to UTC");
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ConfigurationState.Instance.System.TimeZone.Value = "UTC";
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return "UTC";
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}
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internal void Initialize(TimeManager timeManager, Switch device)
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{
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InitializeInstance(device.FileSystem, device.System.ContentManager, device.System.FsIntegrityCheckLevel);
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SteadyClockTimePoint timeZoneUpdatedTimePoint = timeManager.StandardSteadyClock.GetCurrentTimePoint(null);
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string deviceLocationName = SanityCheckDeviceLocationName();
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ResultCode result = GetTimeZoneBinary(deviceLocationName, out Stream timeZoneBinaryStream, out LocalStorage ncaFile);
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if (result == ResultCode.Success)
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{
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// TODO: Read TimeZoneVersion from sysarchive.
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timeManager.SetupTimeZoneManager(deviceLocationName, timeZoneUpdatedTimePoint, (uint)LocationNameCache.Length, new UInt128(), timeZoneBinaryStream);
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ncaFile.Dispose();
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}
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else
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{
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// In the case the user don't have the timezone system archive, we just mark the manager as initialized.
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Manager.MarkInitialized();
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}
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}
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private void InitializeLocationNameCache()
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{
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if (HasTimeZoneBinaryTitle())
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{
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using (IStorage ncaFileStream = new LocalStorage(_virtualFileSystem.SwitchPathToSystemPath(GetTimeZoneBinaryTitleContentPath()), FileAccess.Read, FileMode.Open))
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{
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Nca nca = new Nca(_virtualFileSystem.KeySet, ncaFileStream);
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IFileSystem romfs = nca.OpenFileSystem(NcaSectionType.Data, _fsIntegrityCheckLevel);
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romfs.OpenFile(out IFile binaryListFile, "/binaryList.txt".ToU8Span(), OpenMode.Read).ThrowIfFailure();
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StreamReader reader = new StreamReader(binaryListFile.AsStream());
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List<string> locationNameList = new List<string>();
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string locationName;
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while ((locationName = reader.ReadLine()) != null)
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{
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locationNameList.Add(locationName);
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}
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LocationNameCache = locationNameList.ToArray();
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}
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}
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else
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{
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LocationNameCache = new string[] { "UTC" };
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Logger.Error?.Print(LogClass.ServiceTime, TimeZoneSystemTitleMissingErrorMessage);
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}
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}
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public IEnumerable<(int Offset, string Location, string Abbr)> ParseTzOffsets()
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{
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var tzBinaryContentPath = GetTimeZoneBinaryTitleContentPath();
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if (string.IsNullOrEmpty(tzBinaryContentPath))
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{
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return new[] { (0, "UTC", "UTC") };
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}
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List<(int Offset, string Location, string Abbr)> outList = new List<(int Offset, string Location, string Abbr)>();
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var now = System.DateTimeOffset.Now.ToUnixTimeSeconds();
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using (IStorage ncaStorage = new LocalStorage(_virtualFileSystem.SwitchPathToSystemPath(tzBinaryContentPath), FileAccess.Read, FileMode.Open))
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using (IFileSystem romfs = new Nca(_virtualFileSystem.KeySet, ncaStorage).OpenFileSystem(NcaSectionType.Data, _fsIntegrityCheckLevel))
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{
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foreach (string locName in LocationNameCache)
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{
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if (locName.StartsWith("Etc"))
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{
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continue;
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}
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if (romfs.OpenFile(out IFile tzif, $"/zoneinfo/{locName}".ToU8Span(), OpenMode.Read).IsFailure())
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{
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Logger.Error?.Print(LogClass.ServiceTime, $"Error opening /zoneinfo/{locName}");
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continue;
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}
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using (tzif)
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{
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TimeZone.ParseTimeZoneBinary(out TimeZoneRule tzRule, tzif.AsStream());
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TimeTypeInfo ttInfo;
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if (tzRule.TimeCount > 0) // Find the current transition period
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{
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int fin = 0;
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for (int i = 0; i < tzRule.TimeCount; ++i)
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{
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if (tzRule.Ats[i] <= now)
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{
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fin = i;
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}
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}
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ttInfo = tzRule.Ttis[tzRule.Types[fin]];
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}
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else if (tzRule.TypeCount >= 1) // Otherwise, use the first offset in TTInfo
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{
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ttInfo = tzRule.Ttis[0];
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}
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else
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{
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Logger.Error?.Print(LogClass.ServiceTime, $"Couldn't find UTC offset for zone {locName}");
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continue;
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}
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var abbrStart = tzRule.Chars.AsSpan(ttInfo.AbbreviationListIndex);
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int abbrEnd = abbrStart.IndexOf('\0');
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outList.Add((ttInfo.GmtOffset, locName, abbrStart.Slice(0, abbrEnd).ToString()));
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}
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}
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}
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outList.Sort();
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return outList;
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}
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private bool IsLocationNameValid(string locationName)
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{
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foreach (string cachedLocationName in LocationNameCache)
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{
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if (cachedLocationName.Equals(locationName))
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{
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return true;
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}
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}
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return false;
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}
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public ResultCode SetDeviceLocationName(string locationName)
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{
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ResultCode result = GetTimeZoneBinary(locationName, out Stream timeZoneBinaryStream, out LocalStorage ncaFile);
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if (result == ResultCode.Success)
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{
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result = Manager.SetDeviceLocationNameWithTimeZoneRule(locationName, timeZoneBinaryStream);
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ncaFile.Dispose();
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}
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return result;
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}
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public ResultCode LoadLocationNameList(uint index, out string[] outLocationNameArray, uint maxLength)
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{
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List<string> locationNameList = new List<string>();
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for (int i = 0; i < LocationNameCache.Length && i < maxLength; i++)
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{
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if (i < index)
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{
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continue;
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}
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string locationName = LocationNameCache[i];
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// If the location name is too long, error out.
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if (locationName.Length > 0x24)
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{
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outLocationNameArray = new string[0];
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return ResultCode.LocationNameTooLong;
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}
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locationNameList.Add(locationName);
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}
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outLocationNameArray = locationNameList.ToArray();
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return ResultCode.Success;
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}
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public string GetTimeZoneBinaryTitleContentPath()
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{
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return _contentManager.GetInstalledContentPath(TimeZoneBinaryTitleId, StorageId.NandSystem, NcaContentType.Data);
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}
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public bool HasTimeZoneBinaryTitle()
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{
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return !string.IsNullOrEmpty(GetTimeZoneBinaryTitleContentPath());
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}
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internal ResultCode GetTimeZoneBinary(string locationName, out Stream timeZoneBinaryStream, out LocalStorage ncaFile)
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{
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timeZoneBinaryStream = null;
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ncaFile = null;
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if (!HasTimeZoneBinaryTitle() || !IsLocationNameValid(locationName))
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{
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return ResultCode.TimeZoneNotFound;
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}
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ncaFile = new LocalStorage(_virtualFileSystem.SwitchPathToSystemPath(GetTimeZoneBinaryTitleContentPath()), FileAccess.Read, FileMode.Open);
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Nca nca = new Nca(_virtualFileSystem.KeySet, ncaFile);
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IFileSystem romfs = nca.OpenFileSystem(NcaSectionType.Data, _fsIntegrityCheckLevel);
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Result result = romfs.OpenFile(out IFile timeZoneBinaryFile, $"/zoneinfo/{locationName}".ToU8Span(), OpenMode.Read);
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timeZoneBinaryStream = timeZoneBinaryFile.AsStream();
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return (ResultCode)result.Value;
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}
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internal ResultCode LoadTimeZoneRule(out TimeZoneRule outRules, string locationName)
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{
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outRules = new TimeZoneRule
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{
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Ats = new long[TzMaxTimes],
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Types = new byte[TzMaxTimes],
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Ttis = new TimeTypeInfo[TzMaxTypes],
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Chars = new char[TzCharsArraySize]
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};
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if (!HasTimeZoneBinaryTitle())
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{
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throw new InvalidSystemResourceException(TimeZoneSystemTitleMissingErrorMessage);
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}
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ResultCode result = GetTimeZoneBinary(locationName, out Stream timeZoneBinaryStream, out LocalStorage ncaFile);
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if (result == ResultCode.Success)
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{
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result = Manager.ParseTimeZoneRuleBinary(out outRules, timeZoneBinaryStream);
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ncaFile.Dispose();
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}
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return result;
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}
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}
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}
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