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https://github.com/ryujinx-mirror/ryujinx.git
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bb7600e215
Due to a guessed parsing implementation of the report, sometime it throw an error, since the data isn't really useful, it's better to silent possible exceptions with a message.
195 lines
7.2 KiB
C#
195 lines
7.2 KiB
C#
using Ryujinx.Common.Logging;
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using Ryujinx.HLE.Utilities;
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using System;
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using System.Buffers.Binary;
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using System.IO;
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using System.Text;
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namespace Ryujinx.HLE.HOS.Services.Prepo
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{
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[Service("prepo:a")]
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[Service("prepo:a2")]
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[Service("prepo:u")]
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class IPrepoService : IpcService
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{
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public IPrepoService(ServiceCtx context) { }
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[Command(10100)] // 1.0.0-5.1.0
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// SaveReport(u64, pid, buffer<u8, 9>, buffer<bytes, 5>)
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public ResultCode SaveReportOld(ServiceCtx context)
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{
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// We don't care about the differences since we don't use the play report.
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return ProcessReport(context, withUserID: false);
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}
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[Command(10101)] // 1.0.0-5.1.0
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// SaveReportWithUserOld(nn::account::Uid, u64, pid, buffer<u8, 9>, buffer<bytes, 5>)
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public ResultCode SaveReportWithUserOld(ServiceCtx context)
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{
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// We don't care about the differences since we don't use the play report.
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return ProcessReport(context, withUserID: true);
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}
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[Command(10102)] // 6.0.0+
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// SaveReport(u64, pid, buffer<u8, 9>, buffer<bytes, 5>)
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public ResultCode SaveReport(ServiceCtx context)
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{
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// We don't care about the differences since we don't use the play report.
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return ProcessReport(context, withUserID: false);
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}
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[Command(10103)] // 6.0.0+
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// SaveReportWithUser(nn::account::Uid, u64, pid, buffer<u8, 9>, buffer<bytes, 5>)
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public ResultCode SaveReportWithUser(ServiceCtx context)
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{
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// We don't care about the differences since we don't use the play report.
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return ProcessReport(context, withUserID: true);
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}
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private ResultCode ProcessReport(ServiceCtx context, bool withUserID)
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{
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UInt128 userId = withUserID ? new UInt128(context.RequestData.ReadBytes(0x10)) : new UInt128();
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string gameRoom = StringUtils.ReadUtf8String(context);
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if (withUserID)
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{
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if (userId.IsNull)
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{
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return ResultCode.InvalidArgument;
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}
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}
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if (gameRoom == string.Empty)
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{
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return ResultCode.InvalidState;
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}
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long inputPosition = context.Request.SendBuff[0].Position;
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long inputSize = context.Request.SendBuff[0].Size;
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if (inputSize == 0)
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{
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return ResultCode.InvalidBufferSize;
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}
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byte[] inputBuffer = context.Memory.ReadBytes(inputPosition, inputSize);
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Logger.PrintInfo(LogClass.ServicePrepo, ReadReportBuffer(inputBuffer, gameRoom, userId));
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return ResultCode.Success;
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}
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public string ReadReportBuffer(byte[] buffer, string room, UInt128 userId)
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{
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StringBuilder sb = new StringBuilder();
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sb.AppendLine();
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sb.AppendLine("PlayReport log:");
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if (!userId.IsNull)
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{
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sb.AppendLine($" UserId: {userId.ToString()}");
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}
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sb.AppendLine($" Room: {room}");
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try
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{
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using (MemoryStream stream = new MemoryStream(buffer))
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using (BinaryReader reader = new BinaryReader(stream))
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{
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byte unknown1 = reader.ReadByte(); // Version ?
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short unknown2 = reader.ReadInt16(); // Size ?
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bool isValue = false;
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string fieldStr = string.Empty;
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while (stream.Position != stream.Length)
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{
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byte descriptor = reader.ReadByte();
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if (!isValue)
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{
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byte[] key = reader.ReadBytes(descriptor - 0xA0);
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fieldStr = $" Key: {Encoding.ASCII.GetString(key)}";
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isValue = true;
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}
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else
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{
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if (descriptor > 0xD0) // Int value.
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{
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if (descriptor - 0xD0 == 1)
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{
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fieldStr += $", Value: {BinaryPrimitives.ReverseEndianness(reader.ReadUInt16())}";
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}
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else if (descriptor - 0xD0 == 2)
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{
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fieldStr += $", Value: {BinaryPrimitives.ReverseEndianness(reader.ReadInt32())}";
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}
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else if (descriptor - 0xD0 == 4)
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{
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fieldStr += $", Value: {BinaryPrimitives.ReverseEndianness(reader.ReadInt64())}";
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}
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else
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{
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// Unknown.
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break;
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}
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}
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else if (descriptor > 0xA0 && descriptor < 0xD0) // String value, max size = 0x20 bytes ?
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{
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int size = descriptor - 0xA0;
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string value = string.Empty;
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byte[] rawValues = new byte[0];
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for (int i = 0; i < size; i++)
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{
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byte chr = reader.ReadByte();
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if (chr >= 0x20 && chr < 0x7f)
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{
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value += (char)chr;
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}
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else
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{
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Array.Resize(ref rawValues, rawValues.Length + 1);
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rawValues[rawValues.Length - 1] = chr;
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}
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}
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if (value != string.Empty)
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{
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fieldStr += $", Value: {value}";
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}
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// TODO(Ac_K): Determine why there are non-alphanumeric values sometimes.
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if (rawValues.Length > 0)
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{
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fieldStr += $", RawValue: 0x{BitConverter.ToString(rawValues).Replace("-", "")}";
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}
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}
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else // Byte value.
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{
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fieldStr += $", Value: {descriptor}";
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}
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sb.AppendLine(fieldStr);
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isValue = false;
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}
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}
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}
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}
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catch (Exception)
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{
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sb.AppendLine(" Error while parsing the report buffer.");
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}
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return sb.ToString();
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}
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}
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}
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