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prepo: Silent error while parsing report (#837)
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.
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1 changed files with 73 additions and 66 deletions
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@ -93,94 +93,101 @@ namespace Ryujinx.HLE.HOS.Services.Prepo
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sb.AppendLine($" Room: {room}");
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using (MemoryStream stream = new MemoryStream(buffer))
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using (BinaryReader reader = new BinaryReader(stream))
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try
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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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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 descriptor = reader.ReadByte();
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byte unknown1 = reader.ReadByte(); // Version ?
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short unknown2 = reader.ReadInt16(); // Size ?
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if (!isValue)
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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[] key = reader.ReadBytes(descriptor - 0xA0);
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byte descriptor = reader.ReadByte();
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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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if (!isValue)
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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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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 if (descriptor > 0xA0 && descriptor < 0xD0) // String value, max size = 0x20 bytes ?
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else
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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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if (descriptor > 0xD0) // Int value.
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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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if (descriptor - 0xD0 == 1)
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{
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value += (char)chr;
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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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Array.Resize(ref rawValues, rawValues.Length + 1);
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rawValues[rawValues.Length - 1] = chr;
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// Unknown.
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break;
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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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else if (descriptor > 0xA0 && descriptor < 0xD0) // String value, max size = 0x20 bytes ?
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{
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fieldStr += $", RawValue: 0x{BitConverter.ToString(rawValues).Replace("-", "")}";
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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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}
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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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sb.AppendLine(fieldStr);
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isValue = false;
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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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