public interface IDPlugin
{
int Version { get; }
string Name { get; }
string CallResult(string input);
}
2.開一個專案 DPlugin1，做一個名稱為 MD5 的 class 繼承 IDPlugin，這邊我撰寫的是一個 將字串 加入 特殊的 salt 然後轉 MD5
using JintDPlugin;
namespace DPlugin1
{
public class MD5 : IDPlugin
{
public int Version
{
get { return 2022222; }
}
public string Name
{
get { return "MD5 Library"; }
}
public string CallResult(string input)
{
var x = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] bs = System.Text.Encoding.UTF8.GetBytes(input+","+"當麻的鹽 DONMA's SALT");
bs = x.ComputeHash(bs);
var s = new System.Text.StringBuilder();
foreach (byte b in bs)
{
s.Append(b.ToString("x2").ToLower());
}
string password = s.ToString();
return password;
}
}
}
using System;
namespace JintDPlugin
{
class Program
{
public class ReflactAgent{
public string GetInfo(string file, string className) {
System.Reflection.Assembly assembly = System.Reflection.Assembly.LoadFrom(AppDomain.CurrentDomain.BaseDirectory + file);
foreach (var t in assembly.GetTypes())
{
if (t.IsClass && t.Name == className)
{
var ins = (Activator.CreateInstance(t) as IDPlugin);
return ins.Name + "," + ins.Version;
}
}
throw new EntryPointNotFoundException("I cant Find class.");
}
public string Run(string file,string className,string input) {
System.Reflection.Assembly assembly = System.Reflection.Assembly.LoadFrom(AppDomain.CurrentDomain.BaseDirectory + file);
foreach (var t in assembly.GetTypes())
{
if (t.IsClass && t.Name == className)
{
return (Activator.CreateInstance(t) as IDPlugin).CallResult(input);
}
}
throw new EntryPointNotFoundException("I cant Find class.");
}
}
static void Main(string[] args)
{
var engine = new Jint.Engine();
engine.SetValue("PLUGIN", new ReflactAgent());
var jsCode = @"
function Main(){
return PLUGIN.Run('DPlugin1.dll','MD5','當麻許測試');
}
function LibInfo(){
return PLUGIN.GetInfo('DPlugin1.dll','MD5');
}
";
engine.Execute(jsCode);
var info = engine.Execute("LibInfo()").GetCompletionValue();
Console.WriteLine(info);
//MD5 Library,2022222
var result = engine.Execute("Main()").GetCompletionValue();
Console.WriteLine(result);
//c5222b26b6f1a1f3b7e1b5a847b133fa
}
}
}
其實觀念懂了不難，但是可以做到很多驚人的效果，方便佈局規劃妳的系統
完整程式碼可以到這下載：
https://github.com/donma/JintPluginSample
--
The bug existed in all possible states.
Until I ran the code.
