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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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97
Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/DCFSLoadBundleOperation.cs
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@@ -78,13 +78,41 @@ namespace YooAsset
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.GetCacheFileLoadPath(_bundle);
Result = AssetBundle.LoadFromFile(filePath);
}
}
else
{
_createRequest = _fileSystem.LoadAssetBundleAsync(_bundle);
if (_bundle.Encrypted)
{
_createRequest = _fileSystem.LoadEncryptedAssetBundleAsync(_bundle);
}
else
{
string filePath = _fileSystem.GetCacheFileLoadPath(_bundle);
_createRequest = AssetBundle.LoadFromFileAsync(filePath);
}
}
_steps = ESteps.CheckResult;
@@ -112,51 +140,59 @@ namespace YooAsset
{
_steps = ESteps.Done;
Status = EOperationStatus.Succeed;
return;
}
else
// 注意：当缓存文件的校验等级为Low的时候，并不能保证缓存文件的完整性。
// 说明：在AssetBundle文件加载失败的情况下，我们需要重新验证文件的完整性！
EFileVerifyResult verifyResult = _fileSystem.VerifyCacheFile(_bundle);
if (verifyResult == EFileVerifyResult.Succeed)
{
// 注意：当缓存文件的校验等级为Low的时候，并不能保证缓存文件的完整性。
// 说明：在AssetBundle文件加载失败的情况下，我们需要重新验证文件的完整性！
EFileVerifyResult verifyResult = _fileSystem.VerifyCacheFile(_bundle);
if (verifyResult == EFileVerifyResult.Succeed)
if (_bundle.Encrypted)
{
// 注意：在安卓移动平台，华为和三星真机上有极小概率加载资源包失败。
// 说明：大多数情况在首次安装下载资源到沙盒内，游戏过程中切换到后台再回到游戏内有很大概率触发！
string filePath = _fileSystem.GetCacheFileLoadPath(_bundle);
byte[] fileData = FileUtility.ReadAllBytes(filePath);
if (fileData != null && fileData.Length > 0)
_steps = ESteps.Done;
Status = EOperationStatus.Failed;
Error = $"Failed to load encrypted asset bundle file : {_bundle.BundleName}";
YooLogger.Error(Error);
return;
}
// 注意：在安卓移动平台，华为和三星真机上有极小概率加载资源包失败。
// 说明：大多数情况在首次安装下载资源到沙盒内，游戏过程中切换到后台再回到游戏内有很大概率触发！
string filePath = _fileSystem.GetCacheFileLoadPath(_bundle);
byte[] fileData = FileUtility.ReadAllBytes(filePath);
if (fileData != null && fileData.Length > 0)
{
Result = AssetBundle.LoadFromMemory(fileData);
if (Result == null)
{
Result = AssetBundle.LoadFromMemory(fileData);
if (Result == null)
{
_steps = ESteps.Done;
Status = EOperationStatus.Failed;
Error = $"Failed to load assetBundle from memory : {_bundle.BundleName}";
YooLogger.Error(Error);
}
else
{
_steps = ESteps.Done;
Status = EOperationStatus.Succeed;
}
_steps = ESteps.Done;
Status = EOperationStatus.Failed;
Error = $"Failed to load asset bundle from memory : {_bundle.BundleName}";
YooLogger.Error(Error);
}
else
{
_steps = ESteps.Done;
Status = EOperationStatus.Failed;
Error = $"Failed to read assetBundle file bytes : {_bundle.BundleName}";
YooLogger.Error(Error);
Status = EOperationStatus.Succeed;
}
}
else
{
_steps = ESteps.Done;
_fileSystem.DeleteCacheFile(_bundle.BundleGUID);
Status = EOperationStatus.Failed;
Error = $"Find corrupted file and delete the file : {_bundle.BundleName}";
Error = $"Failed to read asset bundle file bytes : {_bundle.BundleName}";
YooLogger.Error(Error);
}
}
else
{
_steps = ESteps.Done;
_fileSystem.DeleteCacheFile(_bundle.BundleGUID);
Status = EOperationStatus.Failed;
Error = $"Find corrupted asset bundle file and delete : {_bundle.BundleName}";
YooLogger.Error(Error);
}
}
}
internal override void InternalWaitForAsyncComplete()
@@ -272,6 +308,7 @@ namespace YooAsset
_steps = ESteps.Done;
Status = EOperationStatus.Failed;
Error = $"Can not found cache raw bundle file : {filePath}";
YooLogger.Error(Error);
}
}
}