Add full XI5Ticket support and improve ticket handling

BackendServices/CastleLibrary/XI5/Reader/TicketReader.cs

@@ -0,0 +1,115 @@
+using BitConverterExtension;
+using System;
+using System.IO;
+using System.Text;
+using XI5.Types;
+
+namespace XI5.Reader
+{
+    public class TicketReader : BinaryReader
+    {
+        // setup endian converter
+        private static readonly BigEndianBitConverter bigEndian = new();
+
+        public TicketReader(Stream input) : base(input) { }
+
+        #region Big Endian Conversion
+
+        public override short ReadInt16()
+        {
+            byte[] bytes = ReadBytes(2);
+            return bigEndian.ToInt16(bytes, 0);
+        }
+
+        public override int ReadInt32()
+        {
+            byte[] bytes = ReadBytes(4);
+            return bigEndian.ToInt32(bytes, 0);
+        }
+
+        public override long ReadInt64()
+        {
+            byte[] bytes = ReadBytes(8);
+            return bigEndian.ToInt64(bytes, 0);
+        }
+
+        public override ushort ReadUInt16()
+        {
+            byte[] bytes = ReadBytes(2);
+            return bigEndian.ToUInt16(bytes, 0);
+        }
+
+        public override uint ReadUInt32()
+        {
+            byte[] bytes = ReadBytes(4);
+            return bigEndian.ToUInt32(bytes, 0);
+        }
+
+        public override ulong ReadUInt64()
+        {
+            byte[] bytes = ReadBytes(8);
+            return bigEndian.ToUInt64(bytes, 0);
+        }
+
+        #endregion
+
+        internal TicketVersion ReadTicketVersion() => new TicketVersion((byte)(ReadByte() >> 4), ReadByte());
+
+        internal ushort ReadTicketHeader()
+        {
+            ReadBytes(4);           // header
+            return ReadUInt16();    // ticket length
+        }
+
+        internal TicketDataSection ReadTicketSectionHeader()
+        {
+            long position = this.BaseStream.Position;
+
+            byte sectionHeader = this.ReadByte();
+            if (sectionHeader != 0x30)
+                throw new FormatException($"[XI5Ticket] - Expected 0x30 for section header, was {sectionHeader}. Offset is {this.BaseStream.Position}");
+
+            TicketDataSectionType type = (TicketDataSectionType)this.ReadByte();
+            ushort length = this.ReadUInt16();
+
+            return new TicketDataSection(type, length, position);
+        }
+
+        private TicketData ReadTicketData(TicketDataType expectedType)
+        {
+            TicketData data = new TicketData((TicketDataType)ReadUInt16(), ReadUInt16());
+            if (data.Type != expectedType && expectedType != TicketDataType.Empty)
+                throw new FormatException($"[XI5Ticket] - Expected data type to be {expectedType}, was really {data.Type} ({(int)data.Type})");
+
+            return data;
+        }
+
+        internal byte[] ReadTicketBinaryData(TicketDataType type = TicketDataType.Binary)
+            => ReadBytes(ReadTicketData(type).Length);
+        internal string ReadTicketStringData(TicketDataType type = TicketDataType.String)
+            => Encoding.Default.GetString(ReadTicketBinaryData(type)).TrimEnd('\0');
+
+        internal uint ReadTicketUInt32Data()
+        {
+            ReadTicketData(TicketDataType.UInt32);
+            return ReadUInt32();
+        }
+
+        internal ulong ReadTicketUInt64Data()
+        {
+            ReadTicketData(TicketDataType.UInt64);
+            return ReadUInt64();
+        }
+
+        internal DateTimeOffset ReadTicketTimestampData()
+        {
+            ReadTicketData(TicketDataType.Timestamp);
+            return DateTimeOffset.FromUnixTimeMilliseconds((long)ReadUInt64());
+        }
+
+        internal void SkipTicketEmptyData(int sections = 1)
+        {
+            for (int i = 0; i < sections; i++) ReadTicketData(TicketDataType.Empty);
+        }
+    }
+}

BackendServices/CastleLibrary/XI5/Types/Parsers/TicketParser21.cs

@@ -0,0 +1,31 @@
+using XI5.Reader;
+
+namespace XI5.Types.Parsers
+{
+    internal static class TicketParser21
+    {
+        internal static void ParseTicket(XI5Ticket ticket, TicketReader reader)
+        {
+            ticket.SerialId = reader.ReadTicketStringData(TicketDataType.Binary);
+
+            ticket.IssuerId = reader.ReadTicketUInt32Data();
+
+            ticket.IssuedDate = reader.ReadTicketTimestampData();
+            ticket.ExpiryDate = reader.ReadTicketTimestampData();
+
+            ticket.UserId = reader.ReadTicketUInt64Data();
+            ticket.Username = reader.ReadTicketStringData();
+
+            ticket.Country = reader.ReadTicketStringData(TicketDataType.Binary); // No I am not going to brazil
+            ticket.Domain = reader.ReadTicketStringData();
+
+            ticket.ServiceId = reader.ReadTicketStringData(TicketDataType.Binary);
+            ticket.TitleId = XI5Ticket.ServiceIdRegex.Matches(ticket.ServiceId)[0].ToString();
+
+            ticket.Status = reader.ReadUInt32();
+
+            // Skip padding section in ticket
+            reader.SkipTicketEmptyData(3);
+        }
+    }
+}

BackendServices/CastleLibrary/XI5/Types/Parsers/TicketParser30.cs

@@ -0,0 +1,47 @@
+using System;
+using XI5.Reader;
+
+namespace XI5.Types.Parsers
+{
+    internal static class TicketParser30
+    {
+        internal static void ParseTicket(XI5Ticket ticket, TicketReader reader)
+        {
+            ticket.SerialId = reader.ReadTicketStringData(TicketDataType.Binary);
+
+            ticket.IssuerId = reader.ReadTicketUInt32Data();
+
+            ticket.IssuedDate = reader.ReadTicketTimestampData();
+            ticket.ExpiryDate = reader.ReadTicketTimestampData();
+
+            ticket.UserId = reader.ReadTicketUInt64Data();
+            ticket.Username = reader.ReadTicketStringData();
+
+            ticket.Country = reader.ReadTicketStringData(TicketDataType.Binary);
+            ticket.Domain = reader.ReadTicketStringData();
+
+            ticket.ServiceId = reader.ReadTicketStringData(TicketDataType.Binary);
+            ticket.TitleId = XI5Ticket.ServiceIdRegex.Matches(ticket.ServiceId)[0].ToString();
+
+            TicketDataSection header = reader.ReadTicketSectionHeader();
+            if (header.Type != TicketDataSectionType.DateOfBirth)
+            {
+                throw new FormatException($"[XI5Ticket] - Expected section to be {nameof(TicketDataSectionType.DateOfBirth)}, " +
+                    $"was really {header.Type} ({(int)header.Type})");
+            }
+
+            reader.ReadUInt32(); // Birthdate
+            reader.SkipTicketEmptyData(2); // Padding?
+
+            Console.WriteLine(reader.BaseStream.Position);
+            header = reader.ReadTicketSectionHeader();
+            if (header.Type != TicketDataSectionType.Age)
+            {
+                throw new FormatException($"[XI5Ticket] - Expected section to be {nameof(TicketDataSectionType.Age)}, " +
+                                          $"was really {header.Type} ({(int)header.Type})");
+            }
+
+            reader.SkipTicketEmptyData();
+        }
+    }
+}

BackendServices/CastleLibrary/XI5/Types/TicketData.cs

@@ -0,0 +1,14 @@
+namespace XI5.Types
+{
+    public readonly struct TicketData
+    {
+        public readonly TicketDataType Type;
+        public readonly ushort Length;
+
+        public TicketData(TicketDataType type, ushort length)
+        {
+            Type = type;
+            Length = length;
+        }
+    }
+}

BackendServices/CastleLibrary/XI5/Types/TicketDataSection.cs

@@ -0,0 +1,16 @@
+namespace XI5.Types
+{
+    public readonly struct TicketDataSection
+    {
+        public TicketDataSectionType Type { get; }
+        public ushort Length { get; }
+        public int Position { get; }
+
+        public TicketDataSection(TicketDataSectionType type, ushort length, long position)
+        {
+            Type = type;
+            Length = length;
+            Position = (int)position;
+        }
+    }
+}

BackendServices/CastleLibrary/XI5/Types/TicketDataSectionType.cs

@@ -0,0 +1,10 @@
+namespace XI5.Types
+{
+    public enum TicketDataSectionType : byte
+    {
+        Body = 0,
+        Footer = 2,
+        Age = 16,
+        DateOfBirth = 17,
+    }
+}

BackendServices/CastleLibrary/XI5/Types/TicketDataType.cs

@@ -0,0 +1,14 @@
+namespace XI5.Types
+{
+    public enum TicketDataType : ushort
+    {
+        Empty = 0,
+        UInt32 = 1,
+        UInt64 = 2,
+
+        String = 4,
+
+        Timestamp = 7,
+        Binary = 8,
+    }
+}

BackendServices/CastleLibrary/XI5/Types/TicketVersion.cs

@@ -0,0 +1,19 @@
+namespace XI5.Types
+{
+    public readonly struct TicketVersion
+    {
+        public byte Major { get; }
+        public byte Minor { get; }
+
+        internal TicketVersion(byte major, byte minor)
+        {
+            Major = major;
+            Minor = minor;
+        }
+
+        public override string ToString()
+        {
+            return Major + "." + Minor;
+        }
+    }
+}

BackendServices/CastleLibrary/XI5/Verification/ITicketSigningKey.cs

@@ -0,0 +1,14 @@
+namespace XI5.Verification
+{
+    /// <summary>
+    /// Defines the parameters for a key used for verification.
+    /// </summary>
+    public interface ITicketSigningKey
+    {
+        string HashAlgorithm { get; }
+        string CurveTable { get; }
+        TicketSignatureMessageType MessageType { get; }
+        string PublicKeyX { get; }
+        string PublicKeyY { get; }
+    }
+}

BackendServices/CastleLibrary/XI5/Verification/Keys/Games/DefaultSigningKey.cs

@@ -0,0 +1,8 @@
+namespace XI5.Verification.Keys.Games
+{
+    public class DefaultSigningKey : PsnSigningKey
+    {
+        public override string PublicKeyX => "39c62d061d4ee35c5f3f7531de0af3cf918346526edac727";
+        public override string PublicKeyY => "a5d578b55113e612bf1878d4cc939d61a41318403b5bdf86";
+    }
+}

BackendServices/CastleLibrary/XI5/Verification/Keys/PsnSigningKey.cs

@@ -0,0 +1,15 @@
+namespace XI5.Verification.Keys
+{
+    /// <summary>
+    /// A public signing key used when PS3/PSVita clients connect via official PSN.
+    /// Since each game series has a different set of curves, you must provide them yourself in a new class.
+    /// </summary>
+    public abstract class PsnSigningKey : ITicketSigningKey
+    {
+        public string HashAlgorithm => "SHA-1";
+        public string CurveTable => "secp192r1";
+        public TicketSignatureMessageType MessageType => TicketSignatureMessageType.Ticket;
+        public abstract string PublicKeyX { get; }
+        public abstract string PublicKeyY { get; }
+    }
+}

BackendServices/CastleLibrary/XI5/Verification/Keys/RpcnSigningKey.cs

@@ -0,0 +1,17 @@
+namespace XI5.Verification.Keys
+{
+    /// <summary>
+    /// The public signing key used when RPCS3 clients connect via RPCN.
+    /// </summary>
+    public class RpcnSigningKey : ITicketSigningKey
+    {
+        public static readonly RpcnSigningKey Instance = new RpcnSigningKey();
+        private RpcnSigningKey() { }
+
+        public string HashAlgorithm => "SHA-224";
+        public string CurveTable => "secp224k1";
+        public TicketSignatureMessageType MessageType => TicketSignatureMessageType.Body;
+        public string PublicKeyX => "b07bc0f0addb97657e9f389039e8d2b9c97dc2a31d3042e7d0479b93";
+        public string PublicKeyY => "d81c42b0abdf6c42191a31e31f93342f8f033bd529c2c57fdb5a0a7d";
+    }
+}