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IL2CPP: Change metadata and binary to derive from BinaryObjectStream

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This commit is contained in:
Katy Coe
2020-12-21 06:37:29 +01:00
parent 620d985b71
commit c00b474f33
31 changed files with 172 additions and 179 deletions
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85
Il2CppInspector.Common/IL2CPP/Metadata.cs
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@@ -14,44 +14,60 @@ using NoisyCowStudios.Bin2Object;
namespace Il2CppInspector
{
public class Metadata : BinaryObjectReader
public class Metadata : BinaryObjectStream
{
public Il2CppGlobalMetadataHeader Header { get; set; }
public Il2CppAssemblyDefinition[] Assemblies { get; }
public Il2CppImageDefinition[] Images { get; }
public Il2CppTypeDefinition[] Types { get; }
public Il2CppMethodDefinition[] Methods { get; }
public Il2CppParameterDefinition[] Params { get; }
public Il2CppFieldDefinition[] Fields { get; }
public Il2CppFieldDefaultValue[] FieldDefaultValues { get; }
public Il2CppParameterDefaultValue[] ParameterDefaultValues { get; }
public Il2CppPropertyDefinition[] Properties { get; }
public Il2CppEventDefinition[] Events { get; }
public Il2CppGenericContainer[] GenericContainers { get; }
public Il2CppGenericParameter[] GenericParameters { get; }
public Il2CppCustomAttributeTypeRange[] AttributeTypeRanges { get; }
public Il2CppInterfaceOffsetPair[] InterfaceOffsets { get; }
public Il2CppMetadataUsageList[] MetadataUsageLists { get; }
public Il2CppMetadataUsagePair[] MetadataUsagePairs { get; }
public Il2CppFieldRef[] FieldRefs { get; }
public Il2CppAssemblyDefinition[] Assemblies { get; set; }
public Il2CppImageDefinition[] Images { get; set; }
public Il2CppTypeDefinition[] Types { get; set; }
public Il2CppMethodDefinition[] Methods { get; set; }
public Il2CppParameterDefinition[] Params { get; set; }
public Il2CppFieldDefinition[] Fields { get; set; }
public Il2CppFieldDefaultValue[] FieldDefaultValues { get; set; }
public Il2CppParameterDefaultValue[] ParameterDefaultValues { get; set; }
public Il2CppPropertyDefinition[] Properties { get; set; }
public Il2CppEventDefinition[] Events { get; set; }
public Il2CppGenericContainer[] GenericContainers { get; set; }
public Il2CppGenericParameter[] GenericParameters { get; set; }
public Il2CppCustomAttributeTypeRange[] AttributeTypeRanges { get; set; }
public Il2CppInterfaceOffsetPair[] InterfaceOffsets { get; set; }
public Il2CppMetadataUsageList[] MetadataUsageLists { get; set; }
public Il2CppMetadataUsagePair[] MetadataUsagePairs { get; set; }
public Il2CppFieldRef[] FieldRefs { get; set; }
public int[] InterfaceUsageIndices { get; }
public int[] NestedTypeIndices { get; }
public int[] AttributeTypeIndices { get; }
public int[] GenericConstraintIndices { get; }
public uint[] VTableMethodIndices { get; }
public string[] StringLiterals { get; }
public int[] InterfaceUsageIndices { get; set; }
public int[] NestedTypeIndices { get; set; }
public int[] AttributeTypeIndices { get; set; }
public int[] GenericConstraintIndices { get; set; }
public uint[] VTableMethodIndices { get; set; }
public string[] StringLiterals { get; set; }
public Dictionary<int, string> Strings { get; } = new Dictionary<int, string>();
// Set if something in the metadata has been modified / decrypted
public bool IsModified { get; } = false;
public bool IsModified { get; private set; } = false;
public Metadata(MemoryStream stream, EventHandler<string> statusCallback = null) : base(stream)
// Status update callback
private EventHandler<string> OnStatusUpdate { get; set; }
private void StatusUpdate(string status) => OnStatusUpdate?.Invoke(this, status);
// Initialize metadata object from a stream
public static Metadata FromStream(MemoryStream stream, EventHandler<string> statusCallback = null) {
var metadata = new Metadata(statusCallback);
stream.Position = 0;
stream.CopyTo(metadata);
metadata.Position = 0;
metadata.Initialize();
return metadata;
}
private Metadata(EventHandler<string> statusCallback = null) : base() => OnStatusUpdate = statusCallback;
private void Initialize()
{
// Pre-processing hook
var pluginResult = PluginHooks.PreProcessMetadata(stream);
var pluginResult = PluginHooks.PreProcessMetadata(this);
IsModified = pluginResult.IsStreamModified;
// Read metadata header
@@ -185,7 +201,7 @@ namespace Il2CppInspector
if (stringOffsets.Except(Strings.Keys).Any()) {
Console.WriteLine("Decrypting strings...");
statusCallback?.Invoke(this, "Decrypting strings");
StatusUpdate("Decrypting strings");
// There may be zero-padding at the end of the last string since counts seem to be word-aligned
// Find the true location one byte after the final character of the final string
@@ -209,13 +225,10 @@ namespace Il2CppInspector
}
// Write changes back in case the user wants to save the metadata file
using (var sw = new BinaryObjectWriter(BaseStream, Endianness, leaveOpen: true)) {
sw.Version = Version;
sw.Position = Header.stringOffset;
foreach (var str in Strings.OrderBy(s => s.Key))
sw.WriteNullTerminatedString(str.Value);
sw.Flush();
}
Position = Header.stringOffset;
foreach (var str in Strings.OrderBy(s => s.Key))
WriteNullTerminatedString(str.Value);
Flush();
IsModified = true;
}
@@ -235,7 +248,7 @@ namespace Il2CppInspector
public void SaveToFile(string pathname) {
Position = 0;
using (var outFile = new FileStream(pathname, FileMode.Create, FileAccess.Write))
BaseStream.CopyTo(outFile);
CopyTo(outFile);
}
internal int Sizeof(Type type) => Sizeof(type, Version);