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feat : the bundle file decryption

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资源文件解密
This commit is contained in:
hevinci
2024-08-03 18:43:12 +08:00
parent 6b56275f87
commit d017688416
12 changed files with 319 additions and 226 deletions
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Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/DefaultBuildinFileSystem.cs
+80 -76
View File
@@ -2,7 +2,6 @@
using System.IO;
using System.Collections.Generic;
using UnityEngine;
using System.Text;
namespace YooAsset
{
@@ -178,8 +177,11 @@ namespace YooAsset
if (_loadedStream.TryGetValue(bundle.BundleGUID, out Stream managedStream))
{
managedStream.Close();
managedStream.Dispose();
if (managedStream != null)
{
managedStream.Close();
managedStream.Dispose();
}
_loadedStream.Remove(bundle.BundleGUID);
}
}
@@ -187,19 +189,19 @@ namespace YooAsset
public virtual void SetParameter(string name, object value)
{
if (name == FileSystemParameters.FILE_VERIFY_LEVEL)
if (name == FileSystemParametersDefine.FILE_VERIFY_LEVEL)
{
FileVerifyLevel = (EFileVerifyLevel)value;
}
else if (name == FileSystemParameters.APPEND_FILE_EXTENSION)
else if (name == FileSystemParametersDefine.APPEND_FILE_EXTENSION)
{
AppendFileExtension = (bool)value;
}
else if (name == FileSystemParameters.RAW_FILE_BUILD_PIPELINE)
else if (name == FileSystemParametersDefine.RAW_FILE_BUILD_PIPELINE)
{
RawFileBuildPipeline = (bool)value;
}
else if (name == FileSystemParameters.DECRYPTION_SERVICES)
else if (name == FileSystemParametersDefine.DECRYPTION_SERVICES)
{
DecryptionServices = (IDecryptionServices)value;
}
@@ -220,11 +222,11 @@ namespace YooAsset
// 创建解压文件系统
var remoteServices = new UnpackRemoteServices(_packageRoot);
_unpackFileSystem = new DefaultUnpackFileSystem();
_unpackFileSystem.SetParameter(FileSystemParameters.REMOTE_SERVICES, remoteServices);
_unpackFileSystem.SetParameter(FileSystemParameters.FILE_VERIFY_LEVEL, FileVerifyLevel);
_unpackFileSystem.SetParameter(FileSystemParameters.APPEND_FILE_EXTENSION, AppendFileExtension);
_unpackFileSystem.SetParameter(FileSystemParameters.RAW_FILE_BUILD_PIPELINE, RawFileBuildPipeline);
_unpackFileSystem.SetParameter(FileSystemParameters.DECRYPTION_SERVICES, DecryptionServices);
_unpackFileSystem.SetParameter(FileSystemParametersDefine.REMOTE_SERVICES, remoteServices);
_unpackFileSystem.SetParameter(FileSystemParametersDefine.FILE_VERIFY_LEVEL, FileVerifyLevel);
_unpackFileSystem.SetParameter(FileSystemParametersDefine.APPEND_FILE_EXTENSION, AppendFileExtension);
_unpackFileSystem.SetParameter(FileSystemParametersDefine.RAW_FILE_BUILD_PIPELINE, RawFileBuildPipeline);
_unpackFileSystem.SetParameter(FileSystemParametersDefine.DECRYPTION_SERVICES, DecryptionServices);
_unpackFileSystem.OnCreate(packageName, null);
}
public virtual void OnUpdate()
@@ -267,18 +269,28 @@ namespace YooAsset
if (Exists(bundle) == false)
return null;
string filePath = GetBuildinFileLoadPath(bundle);
var data = FileUtility.ReadAllBytes(filePath);
if (bundle.Encrypted)
{
if (DecryptionServices == null)
{
YooLogger.Error($"DecryptionServices is Null!");
YooLogger.Error($"The {nameof(IDecryptionServices)} is null !");
return null;
}
return DecryptionServices.ReadFileData(data);
string filePath = GetBuildinFileLoadPath(bundle);
var fileInfo = new DecryptFileInfo()
{
BundleName = bundle.BundleName,
FileLoadCRC = bundle.UnityCRC,
FileLoadPath = filePath,
};
return DecryptionServices.ReadFileData(fileInfo);
}
else
{
string filePath = GetBuildinFileLoadPath(bundle);
return FileUtility.ReadAllBytes(filePath);
}
return data;
}
public virtual string ReadFileText(PackageBundle bundle)
{
@@ -288,19 +300,28 @@ namespace YooAsset
if (Exists(bundle) == false)
return null;
string filePath = GetBuildinFileLoadPath(bundle);
var data = FileUtility.ReadAllBytes(filePath);
if (bundle.Encrypted)
{
if (DecryptionServices == null)
{
YooLogger.Error($"DecryptionServices is Null!");
YooLogger.Error($"The {nameof(IDecryptionServices)} is null !");
return null;
}
data = DecryptionServices.ReadFileData(data);
string filePath = GetBuildinFileLoadPath(bundle);
var fileInfo = new DecryptFileInfo()
{
BundleName = bundle.BundleName,
FileLoadCRC = bundle.UnityCRC,
FileLoadPath = filePath,
};
return DecryptionServices.ReadFileText(fileInfo);
}
else
{
string filePath = GetBuildinFileLoadPath(bundle);
return FileUtility.ReadAllText(filePath);
}
return Encoding.UTF8.GetString(data);
}
#region 内部方法
@@ -342,59 +363,6 @@ namespace YooAsset
string rootPath = PathUtility.Combine(Application.dataPath, "StreamingAssets", YooAssetSettingsData.Setting.DefaultYooFolderName);
return PathUtility.Combine(rootPath, PackageName);
}
public AssetBundle LoadAssetBundle(PackageBundle bundle)
{
string filePath = GetBuildinFileLoadPath(bundle);
if (bundle.Encrypted)
{
if (DecryptionServices == null)
{
YooLogger.Error($"DecryptionServices is Null!");
return null;
}
else
{
return DecryptionServices.LoadAssetBundle(new DecryptFileInfo()
{
BundleName = bundle.BundleName,
FileLoadCRC = bundle.UnityCRC,
FileLoadPath = filePath,
}, out _);
}
}
else
{
return AssetBundle.LoadFromFile(filePath);
}
}
public AssetBundleCreateRequest LoadAssetBundleAsync(PackageBundle bundle)
{
string filePath = GetBuildinFileLoadPath(bundle);
if (bundle.Encrypted)
{
if (DecryptionServices == null)
{
YooLogger.Error($"DecryptionServices is Empty!");
return null;
}
else
{
return DecryptionServices.LoadAssetBundleAsync(new DecryptFileInfo()
{
BundleName = bundle.BundleName,
FileLoadCRC = bundle.UnityCRC,
FileLoadPath = filePath,
}, out _);
}
}
else
{
return AssetBundle.LoadFromFileAsync(filePath);
}
}
/// <summary>
/// 记录文件信息
@@ -418,6 +386,42 @@ namespace YooAsset
{
return _unpackFileSystem.InitializeFileSystemAsync();
}
/// <summary>
/// 加载加密资源文件
/// </summary>
public AssetBundle LoadEncryptedAssetBundle(PackageBundle bundle)
{
string filePath = GetBuildinFileLoadPath(bundle);
var fileInfo = new DecryptFileInfo()
{
BundleName = bundle.BundleName,
FileLoadCRC = bundle.UnityCRC,
FileLoadPath = filePath,
};
var assetBundle = DecryptionServices.LoadAssetBundle(fileInfo, out var managedStream);
_loadedStream.Add(bundle.BundleGUID, managedStream);
return assetBundle;
}
/// <summary>
/// 加载加密资源文件
/// </summary>
public AssetBundleCreateRequest LoadEncryptedAssetBundleAsync(PackageBundle bundle)
{
string filePath = GetBuildinFileLoadPath(bundle);
var fileInfo = new DecryptFileInfo()
{
BundleName = bundle.BundleName,
FileLoadCRC = bundle.UnityCRC,
FileLoadPath = filePath,
};
var createRequest = DecryptionServices.LoadAssetBundleAsync(fileInfo, out var managedStream);
_loadedStream.Add(bundle.BundleGUID, managedStream);
return createRequest;
}
#endregion
}
}
Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/Operation/DBFSLoadBundleOperation.cs
+48 -8
View File
@@ -11,8 +11,8 @@ namespace YooAsset
private enum ESteps
{
None,
LoadBuidlinAssetBundle,
CheckLoadBuildinResult,
LoadAssetBundle,
CheckResult,
Done,
}
@@ -32,27 +32,56 @@ namespace YooAsset
{
DownloadProgress = 1f;
DownloadedBytes = _bundle.FileSize;
_steps = ESteps.LoadBuidlinAssetBundle;
_steps = ESteps.LoadAssetBundle;
}
internal override void InternalOnUpdate()
{
if (_steps == ESteps.None || _steps == ESteps.Done)
return;
if (_steps == ESteps.LoadBuidlinAssetBundle)
if (_steps == ESteps.LoadAssetBundle)
{
if (_bundle.Encrypted)
{
if (_fileSystem.DecryptionServices == null)
{
_steps = ESteps.Done;
Status = EOperationStatus.Failed;
Error = $"The {nameof(IDecryptionServices)} is null !";
YooLogger.Error(Error);
return;
}
}
if (_isWaitForAsyncComplete)
{
Result = _fileSystem.LoadAssetBundle(_bundle);
if (_bundle.Encrypted)
{
Result = _fileSystem.LoadEncryptedAssetBundle(_bundle);
}
else
{
string filePath = _fileSystem.GetBuildinFileLoadPath(_bundle);
Result = AssetBundle.LoadFromFile(filePath);
}
}
else
{
_createRequest = _fileSystem.LoadAssetBundleAsync(_bundle);
if (_bundle.Encrypted)
{
_createRequest = _fileSystem.LoadEncryptedAssetBundleAsync(_bundle);
}
else
{
string filePath = _fileSystem.GetBuildinFileLoadPath(_bundle);
_createRequest = AssetBundle.LoadFromFileAsync(filePath);
}
}
_steps = ESteps.CheckLoadBuildinResult;
_steps = ESteps.CheckResult;
}
if (_steps == ESteps.CheckLoadBuildinResult)
if (_steps == ESteps.CheckResult)
{
if (_createRequest != null)
{
@@ -74,12 +103,22 @@ namespace YooAsset
{
_steps = ESteps.Done;
Status = EOperationStatus.Succeed;
return;
}
if (_bundle.Encrypted)
{
_steps = ESteps.Done;
Status = EOperationStatus.Failed;
Error = $"Failed to load encrypted buildin asset bundle file : {_bundle.BundleName}";
YooLogger.Error(Error);
}
else
{
_steps = ESteps.Done;
Status = EOperationStatus.Failed;
Error = $"Failed to load buildin asset bundle file : {_bundle.BundleName}";
YooLogger.Error(Error);
}
}
}
@@ -148,6 +187,7 @@ namespace YooAsset
_steps = ESteps.Done;
Status = EOperationStatus.Failed;
Error = $"Can not found buildin raw bundle file : {filePath}";
YooLogger.Error(Error);
}
}
}