Use SdFs class to read titles

hactoolnet/Program.cs

@@ -11,108 +11,59 @@ namespace hactoolnet
     {
         static void Main(string[] args)
         {
+            var sdfs = LoadSdFs(args);
+
             Console.WriteLine("Listing NCA files");
-            ListSdContents(args);
+            ListNcas(sdfs);
 
             Console.WriteLine("Listing titles");
-            var watch = Stopwatch.StartNew();
+            ListTitles(sdfs);
 
-            DumpMeta(args);
+            //DecryptNax0(sdfs, "C0628FB07A89E9050BDA258F74868E8D");
-            watch.Stop();
-            Console.WriteLine(watch.Elapsed.TotalMilliseconds);
         }
 
-        static void DecryptNax0(string[] args)
+        static void DecryptNax0(SdFs sdFs, string name)
         {
-            var keyset = ExternalKeys.ReadKeyFile(args[0]);
+            var nca = sdFs.Ncas[name];
-            keyset.SetSdSeed(args[1].ToBytes());
+            using (var output = new FileStream($"{nca.NcaId}.nca", FileMode.Create))
-
+            using (var progress = new ProgressBar())
-            using (var nax0 = Nax0.CreateFromPath(keyset, args[2], args[3]))
             {
-                var nca = new Nca(keyset, nax0.Stream, true);
+                progress.LogMessage($"Title ID: {nca.Header.TitleId:X16}");
-
+                progress.LogMessage($"Writing {nca.NcaId}.nca");
-                using (var output = new FileStream(args[4], FileMode.Create))
+                nca.Stream.Position = 0;
-                using (var progress = new ProgressBar())
+                nca.Stream.CopyStream(output, nca.Stream.Length, progress);
-                {
-                    progress.LogMessage($"Title ID: {nca.Header.TitleId:X16}");
-                    progress.LogMessage($"Writing {args[4]}");
-                    nax0.Stream.CopyStream(output, nax0.Stream.Length, progress);
-                }
             }
         }
 
-        static void ListSdContents(string[] args)
+        static SdFs LoadSdFs(string[] args)
         {
-            Console.WriteLine($"Using key file {args[0]}");
-            Console.WriteLine($"SD seed {BitConverter.ToString(args[1].ToBytes())}");
-            Console.WriteLine($"SD path {args[2]}");
             var keyset = ExternalKeys.ReadKeyFile(args[0]);
-
-            if (keyset.master_keys[0].IsEmpty())
-            {
-                Console.WriteLine("Need master key 0");
-            }
-
             keyset.SetSdSeed(args[1].ToBytes());
-            using (var sdfs = new SdFs(keyset, args[2]))
+            var sdfs = new SdFs(keyset, args[2]);
-            {
+            return sdfs;
-                sdfs.OpenAllNcas();
+        }
 
-                foreach (Nca nca in sdfs.Ncas)
+        static void ListNcas(SdFs sdfs)
+        {
+            foreach (Nca nca in sdfs.Ncas.Values.OrderBy(x => x.Header.TitleId))
+            {
+                Console.WriteLine($"{nca.Header.TitleId:X16} {nca.Header.ContentType.ToString().PadRight(10, ' ')} {nca.NcaId}");
+            }
+        }
+
+        static void ListTitles(SdFs sdfs)
+        {
+            foreach (var title in sdfs.Titles.Values.OrderBy(x => x.Id))
+            {
+                Console.WriteLine($"{title.Id:X16} v{title.Version.Version} ({title.Version}) {title.Metadata.Type}");
+
+                foreach (var content in title.Metadata.ContentEntries)
                 {
                     Console.WriteLine(
-                        $"{nca.Header.TitleId:X16} {nca.Header.ContentType.ToString().PadRight(10, ' ')} {nca.Name}");
+                        $"    {BitConverter.ToString(content.NcaId).Replace("-", "")}.nca {content.Type} {Util.GetBytesReadable(content.Size)}");
                 }
-            }
-        }
 
-        static void DumpMeta(string[] args)
+                Console.WriteLine("");
-        {
-            var keyset = ExternalKeys.ReadKeyFile(args[0]);
-            keyset.SetSdSeed(args[1].ToBytes());
-            List<Nca> ncas;
-            using (var sdfs = new SdFs(keyset, args[2]))
-            {
-                sdfs.OpenAllNcas();
-                ncas = sdfs.Ncas;
-
-                var metadata = new List<Cnmt>();
-
-                using (var progress = new ProgressBar())
-                {
-                    foreach (var nca in ncas.Where(x => x.Header.ContentType == ContentType.Meta))
-                    {
-                        foreach (var section in nca.Sections.Where(x => x.Header.FsType == SectionFsType.Pfs0))
-                        {
-                            var sect = nca.OpenSection(section.SectionNum);
-                            var pfs0 = new Pfs0(sect);
-
-                            foreach (var entry in pfs0.Entries)
-                            {
-                                var path = Path.Combine("meta", entry.Name);
-                                Directory.CreateDirectory(Path.GetDirectoryName(path));
-                                var file = pfs0.GetFile(entry.Index);
-
-                                metadata.Add(new Cnmt(new MemoryStream(file)));
-                                File.WriteAllBytes(path, file);
-                            }
-                        }
-                    }
-
-                    foreach (var meta in metadata.OrderBy(x => x.TitleId))
-                    {
-                        progress.LogMessage($"{meta.TitleId:X16} v{meta.TitleVersion} {meta.Type}");
-
-                        foreach (var content in meta.ContentEntries)
-                        {
-                            // Add an actual hexdump function
-                            progress.LogMessage(
-                                $"    {BitConverter.ToString(content.NcaId).Replace("-", "")}.nca {content.Type}");
-                        }
-
-                        progress.LogMessage("");
-                    }
-                }
             }
         }
     }

libhac/Nca.cs

@@ -8,7 +8,7 @@ namespace libhac
     public class Nca : IDisposable
     {
         public NcaHeader Header { get; private set; }
-        public string Name { get; set; }
+        public string NcaId { get; set; }
         public bool HasRightsId { get; private set; }
         public int CryptoType { get; private set; }
         public byte[][] DecryptedKeys { get; } = Util.CreateJaggedArray<byte[][]>(4, 0x10);

libhac/NcaStructs.cs

@@ -31,7 +31,7 @@ namespace libhac
             head.Signature1 = reader.ReadBytes(0x100);
             head.Signature2 = reader.ReadBytes(0x100);
             head.Magic = reader.ReadAscii(4);
-            if(head.Magic != "NCA3") throw new InvalidDataException("Not an NCA3 file");
+            if (head.Magic != "NCA3") throw new InvalidDataException("Not an NCA3 file");
             head.Distribution = reader.ReadByte();
             head.ContentType = (ContentType)reader.ReadByte();
             head.CryptoType = reader.ReadByte();
@@ -216,6 +216,29 @@ namespace libhac
         }
     }
 
+    public class TitleVersion
+    {
+        public uint Version { get; }
+        public byte Major { get; }
+        public byte Minor { get; }
+        public byte Patch { get; }
+        public byte Revision { get; }
+
+        public TitleVersion(uint version)
+        {
+            Version = version;
+            Revision = (byte)version;
+            Patch = (byte)(version >> 8);
+            Minor = (byte)(version >> 16);
+            Major = (byte)(version >> 24);
+        }
+
+        public override string ToString()
+        {
+            return $"{Major}.{Minor}.{Patch}.{Revision}";
+        }
+    }
+
     public enum ContentType
     {
         Program,

libhac/SdFs.cs

@@ -11,7 +11,10 @@ namespace libhac
         public string RootDir { get; }
         public string ContentsDir { get; }
         public string[] Files { get; }
-        public List<Nca> Ncas { get; } = new List<Nca>();
+
+        public Dictionary<string, Nca> Ncas { get; } = new Dictionary<string, Nca>(StringComparer.OrdinalIgnoreCase);
+        public Dictionary<ulong, Title> Titles { get; } = new Dictionary<ulong, Title>();
+
         private List<Nax0> Nax0s { get; } = new List<Nax0>();
 
         public SdFs(Keyset keyset, string sdPath)
@@ -24,6 +27,8 @@ namespace libhac
             }
 
             Files = Directory.GetFiles(ContentsDir, "00", SearchOption.AllDirectories).Select(Path.GetDirectoryName).ToArray();
+            OpenAllNcas();
+            ReadTitles();
         }
 
         public void OpenAllNcas()
@@ -37,30 +42,47 @@ namespace libhac
                     var nax0 = Nax0.CreateFromPath(Keyset, file, sdPath);
                     Nax0s.Add(nax0);
                     nca = new Nca(Keyset, nax0.Stream, false);
-                    nca.Name = Path.GetFileName(file);
+                    nca.NcaId = Path.GetFileNameWithoutExtension(file);
                 }
                 catch (Exception ex)
                 {
                     Console.WriteLine($"{ex.Message} {file}");
                 }
 
-                if (nca != null) Ncas.Add(nca);
+                if (nca != null) Ncas.Add(nca.NcaId, nca);
+            }
+        }
+
+        public void ReadTitles()
+        {
+            foreach (var nca in Ncas.Values.Where(x => x.Header.ContentType == ContentType.Meta))
+            {
+                var title = new Title();
+
+                // Meta contents always have 1 Partition FS section with 1 file in it
+                Stream sect = nca.OpenSection(0);
+                var pfs0 = new Pfs0(sect);
+                var file = pfs0.GetFile(0);
+
+                var metadata = new Cnmt(new MemoryStream(file));
+                title.Id = metadata.TitleId;
+                title.Version = new TitleVersion(metadata.TitleVersion);
+                title.Metadata = metadata;
+                Titles.Add(title.Id, title);
             }
         }
 
         private void DisposeNcas()
         {
-            foreach (var nca in Ncas)
+            foreach (Nca nca in Ncas.Values)
             {
                 nca.Dispose();
             }
             Ncas.Clear();
 
-            foreach (var nax0 in Nax0s)
+            // Disposing the Nca disposes the Nax0 as well
-            {
-                nax0.Dispose();
-            }
             Nax0s.Clear();
+            Titles.Clear();
         }
 
         public void Dispose()
@@ -68,4 +90,12 @@ namespace libhac
             DisposeNcas();
         }
     }
+
+    public class Title
+    {
+        public ulong Id { get; internal set; }
+        public TitleVersion Version { get; internal set; }
+        public List<Nca> Ncas { get; } = new List<Nca>();
+        public Cnmt Metadata { get; internal set; }
+    }
 }

libhac/Util.cs

@@ -181,5 +181,52 @@ namespace libhac
         {
             return MediaSize * media;
         }
+
+        public static string GetBytesReadable(long bytes)
+        {
+            // Get absolute value
+            long absBytes = (bytes < 0 ? -bytes : bytes);
+            // Determine the suffix and readable value
+            string suffix;
+            double readable;
+            if (absBytes >= 0x1000000000000000) // Exabyte
+            {
+                suffix = "EB";
+                readable = (bytes >> 50);
+            }
+            else if (absBytes >= 0x4000000000000) // Petabyte
+            {
+                suffix = "PB";
+                readable = (bytes >> 40);
+            }
+            else if (absBytes >= 0x10000000000) // Terabyte
+            {
+                suffix = "TB";
+                readable = (bytes >> 30);
+            }
+            else if (absBytes >= 0x40000000) // Gigabyte
+            {
+                suffix = "GB";
+                readable = (bytes >> 20);
+            }
+            else if (absBytes >= 0x100000) // Megabyte
+            {
+                suffix = "MB";
+                readable = (bytes >> 10);
+            }
+            else if (absBytes >= 0x400) // Kilobyte
+            {
+                suffix = "KB";
+                readable = bytes;
+            }
+            else
+            {
+                return bytes.ToString("0 B"); // Byte
+            }
+            // Divide by 1024 to get fractional value
+            readable = (readable / 1024);
+            // Return formatted number with suffix
+            return readable.ToString("0.### ") + suffix;
+        }
     }
 }