private void InitAssetEncrypter()
{
var types = AssemblyUtility.GetAssignableTypes(AssemblyUtility.UnityDefaultAssemblyEditorName, typeof(IAssetEncrypter));
if (types.Count == 0)
{
return;
}
if (types.Count != 1)
{
throw new Exception($"Found more {nameof(IAssetEncrypter)} types. We only support one.");
}
BuildLogger.Log($"创建加密类 : {types[0].FullName}");
_encrypter = (IAssetEncrypter)Activator.CreateInstance(types[0]);
}
/// <summary>
/// 加密文件
/// </summary>
private List <string> EncryptFiles(IAssetEncrypter encrypter, AssetBundleManifest unityManifest, AssetBundleBuilder.BuildParametersContext buildParameters)
{
// 加密资源列表
List <string> encryptList = new List <string>();
// 如果没有设置加密类
if (encrypter == null)
{
return(encryptList);
}
BuildLogger.Log($"开始加密资源文件");
string[] allAssetBundles = unityManifest.GetAllAssetBundles();
int progressValue = 0;
foreach (string bundleName in allAssetBundles)
{
string filePath = $"{buildParameters.PipelineOutputDirectory}/{bundleName}";
if (encrypter.Check(filePath))
{
encryptList.Add(bundleName);
// 注意：通过判断文件合法性，规避重复加密一个文件
byte[] fileData = File.ReadAllBytes(filePath);
if (EditorTools.CheckBundleFileValid(fileData))
{
byte[] bytes = encrypter.Encrypt(fileData);
File.WriteAllBytes(filePath, bytes);
BuildLogger.Log($"文件加密完成：{filePath}");
}
}
// 进度条
EditorTools.DisplayProgressBar("加密资源包", ++progressValue, allAssetBundles.Length);
}
EditorTools.ClearProgressBar();
return(encryptList);
}