在读取RedisSessionStateProvider配置 提到用mono ceil 来修改程序集以及它的签名,里面GetPublicKey 和GetPubliKeyToken 方法里面那个字符串的获取 以及后来的签名 我们都应该 用code来实现,还有应用该dll文件的签名也一同需要修改。
所以我这里实现了一个简单的helper方法 如下:
namespace ConsoleSession {using Mono.Cecil;using System;using System.IO;using System.Linq;using System.Reflection;using System.Runtime.InteropServices;public class ChangeAssemblyInfo{public string FileName { set; get; }public string FullName { set; get; }}public class keyHelper{static byte[] GetNewKey(string keyFileName){using (FileStream keyPairStream = File.OpenRead(keyFileName)){return new StrongNameKeyPair(keyPairStream).PublicKey;}}public static void ReSign(string keyFileName, string assemblyFileName){AssemblyDefinition asm = AssemblyDefinition.ReadAssembly(assemblyFileName);asm.Name.PublicKey = GetNewKey(keyFileName);asm.Write(assemblyFileName);//用KEY文件建立密钥容器 byte[] pbKeyBlob = File.ReadAllBytes(keyFileName);string wszKeyContainer = Guid.NewGuid().ToString();StrongNameKeyInstall(wszKeyContainer, pbKeyBlob, pbKeyBlob.Length);//使用新建的密钥容器对程序集经行签名 StrongNameSignatureGeneration(assemblyFileName, wszKeyContainer, IntPtr.Zero, 0, 0, 0);//删除新建的密钥容器 StrongNameKeyDelete(wszKeyContainer);}private static byte[] tryGetPublicKeyToken(string keyFileName){try{byte[] newPublicKey;using (FileStream keyPairStream = File.OpenRead(keyFileName)){newPublicKey = new StrongNameKeyPair(keyPairStream).PublicKey;}int pcbStrongNameToken;IntPtr ppbStrongNameToken;StrongNameTokenFromPublicKey(newPublicKey, newPublicKey.Length, out ppbStrongNameToken,out pcbStrongNameToken);var token = new byte[pcbStrongNameToken];Marshal.Copy(ppbStrongNameToken, token, 0, pcbStrongNameToken);StrongNameFreeBuffer(ppbStrongNameToken);return token;}catch (Exception){return null;}}public static void ReLink(string keyFileName, ChangeAssemblyInfo[] assemblyInfoList){byte[] publicKeyToken = tryGetPublicKeyToken(keyFileName);if (publicKeyToken == null){return;}//获得每个程序集的名称foreach (ChangeAssemblyInfo assemblyInfo in assemblyInfoList){assemblyInfo.FullName = AssemblyDefinition.ReadAssembly(assemblyInfo.FileName).Name.FullName;}//检查是否被引用,是的话,就替换PublicKeyTokenforeach (ChangeAssemblyInfo assemblyInfo in assemblyInfoList){AssemblyDefinition assembly = AssemblyDefinition.ReadAssembly(assemblyInfo.FileName);foreach (ModuleDefinition module in assembly.Modules)foreach (AssemblyNameReference reference in module.AssemblyReferences)if (assemblyInfoList.Any(a => a.FullName == reference.FullName)){reference.PublicKeyToken = publicKeyToken;assembly.Write(assemblyInfo.FileName);}}}#region StrongName库作为一项资源包含在 MsCorEE.dll 中,其一系列API包含有[DllImport("mscoree.dll", EntryPoint = "StrongNameKeyDelete", CharSet = CharSet.Auto)]static extern bool StrongNameKeyDelete(string wszKeyContainer);[DllImport("mscoree.dll", EntryPoint = "StrongNameKeyInstall", CharSet = CharSet.Auto)]static extern bool StrongNameKeyInstall([MarshalAs(UnmanagedType.LPWStr)] string wszKeyContainer,[MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 2,SizeConst = 0)] byte[] pbKeyBlob, int arg0);[DllImport("mscoree.dll", EntryPoint = "StrongNameSignatureGeneration", CharSet = CharSet.Auto)]static extern bool StrongNameSignatureGeneration(string wszFilePath, string wszKeyContainer,IntPtr pbKeyBlob, int cbKeyBlob, int ppbSignatureBlob,int pcbSignatureBlob);[DllImport("mscoree.dll", EntryPoint = "StrongNameErrorInfo", CharSet = CharSet.Auto)]static extern uint StrongNameErrorInfo();[DllImport("mscoree.dll", EntryPoint = "StrongNameTokenFromPublicKey", CharSet = CharSet.Auto)]static extern bool StrongNameTokenFromPublicKey(byte[] pbPublicKeyBlob, int cbPublicKeyBlob,out IntPtr ppbStrongNameToken, out int pcbStrongNameToken);[DllImport("mscoree.dll", EntryPoint = "StrongNameFreeBuffer", CharSet = CharSet.Auto)]static extern void StrongNameFreeBuffer(IntPtr pbMemory);#endregion} }
调用code 如下:
using System;using System.IO;using System.Linq;using Mono.Cecil;class Program{static void Main(string[] args){#region 修改程序集string filePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Microsoft.Web.RedisSessionStateProvider3.dll");AssemblyDefinition asm = AssemblyDefinition.ReadAssembly(filePath);TypeDefinition[] types = asm.MainModule.Types.ToArray();//修改ProviderConfiguration为publicTypeDefinition typeConfiguration = types.FirstOrDefault(x => x.Name == "ProviderConfiguration");typeConfiguration.IsPublic = true;//修改ProviderConfiguration的字段为publicTypeDefinition typeRedisProvide = types.FirstOrDefault(x => x.Name == "RedisSessionStateProvider");FieldDefinition filedConfiguration = typeRedisProvide.Fields.ToArray().FirstOrDefault(x => x.Name == "configuration");filedConfiguration.IsPublic = true;//保存dll文件filePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Microsoft.Web.RedisSessionStateProvider.dll");asm.Write(filePath);#endregionstring keyfileName = @"D:\mykey.snk";//修改单个dll文件的签名 keyHelper.ReSign(keyfileName,filePath);//修改引用该dll文件的签名keyHelper.ReLink(keyfileName, new ChangeAssemblyInfo[] {new ChangeAssemblyInfo { FileName = filePath },new ChangeAssemblyInfo { FileName=Path.Combine(@"C:\Users\UNIT12\Documents\visual studio 2015\Projects\SessionWebApp\SessionWebApp\bin","SessionWebApp.dll")}});//Console.ReadLine(); }}
参考资料:
利用Mono-cecil实现.NET程序的重新签名,重新链接相关库的引用