fix：1、更换项目，使用winter来创建

2026-04-22 11:13:16 +08:00
parent 173cfb2dc9
commit 83ff9f71ad
7375 changed files with 209752 additions and 157557 deletions
@@ -0,0 +1,103 @@
+using System;
+using System.IO;
+using System.Linq;
+using System.Security.Cryptography;
+using System.Text;
+using LoveLegend;
+
+namespace LoveLegend
+{
+    
+     public class Rescrypt
+    {
+        // 魔法字节标记
+        private static readonly byte[] Magic = Encoding.UTF8.GetBytes("SGENCRY");
+        // 解密文件：从 src 读出，解密后写到 dst
+        public static void DecryptFile(string src, string dst)
+        {
+            var key = ConfigSystem.GetCommonConf().ResVersion;
+            var data = File.ReadAllBytes(src);
+            // 检查魔法字节
+            if (data.Length < Magic.Length || !data.Take(Magic.Length).SequenceEqual(Magic)) throw new InvalidDataException("文件未加密或格式错误");
+            // 去掉魔法字节
+            var raw = data.Skip(Magic.Length).ToArray();
+            
+            // 使用 MD5.Create() 计算 MD5
+            byte[] rawHash;
+            using (var md5 = MD5.Create())
+            {
+                rawHash = md5.ComputeHash(Encoding.UTF8.GetBytes(key));
+            }
+            // 转成 32 字节十六进制 ASCII，与 Go 端 hex.EncodeToString 对应
+            var keyBytes = Encoding.ASCII.GetBytes(BitConverter.ToString(rawHash).Replace("-", "").ToLower());
+            // 解密
+            var dec = KeyReverseDecryptData(raw, keyBytes);
+            // 写出解密后的文件
+            File.WriteAllBytes(dst, dec);
+            // 删除临时源文件（加密的）
+            File.Delete(src);
+        }
+        
+        public static byte[] DecryptFileToBytes(string src)
+        {
+            var data = File.ReadAllBytes(src);
+
+            var key = ConfigSystem.GetCommonConf().ResVersion;
+            
+            // 检查魔法字节
+            if (data.Length < Magic.Length || !data.Take(Magic.Length).SequenceEqual(Magic))
+                throw new InvalidDataException("文件未加密或格式错误");
+
+            // 去掉魔法字节
+            var raw = data.Skip(Magic.Length).ToArray();
+            
+            // 使用 MD5.Create() 计算 MD5
+            byte[] rawHash;
+            using (var md5 = MD5.Create())
+            {
+                rawHash = md5.ComputeHash(Encoding.UTF8.GetBytes(key));
+            }
+            // 转成 32 字节十六进制 ASCII，与 Go 端 hex.EncodeToString 对应
+            var keyBytes = Encoding.ASCII.GetBytes(BitConverter.ToString(rawHash).Replace("-", "").ToLower());
+
+            // 解密并返回
+            return KeyReverseDecryptData(raw, keyBytes);
+        }
+        
+        public static byte[] DecryptVideoToBytes(string src)
+        {
+            var key = ConfigSystem.GetCommonConf().ResVersion;
+            
+            var data = File.ReadAllBytes(src);
+            if (data.Length < Magic.Length || !data.Take(Magic.Length).SequenceEqual(Magic))
+                throw new InvalidDataException("视频未加密或格式错误");
+
+            var raw = data.Skip(Magic.Length).ToArray();
+            
+            // 使用 MD5.Create() 计算 MD5
+            byte[] rawHash;
+            using (var md5 = MD5.Create())
+            {
+                rawHash = md5.ComputeHash(Encoding.UTF8.GetBytes(key));
+            }
+            // 转成 32 字节十六进制 ASCII，与 Go 端 hex.EncodeToString 对应
+            var keyBytes = Encoding.ASCII.GetBytes(BitConverter.ToString(rawHash).Replace("-", "").ToLower());
+            
+            return KeyReverseDecryptData(raw, keyBytes);
+        }
+
+
+        // 基础解密：XOR + 反序
+        private static byte[] KeyReverseDecryptData(byte[] data, byte[] key)
+        {
+            var keyLen = key.Length;
+            // XOR
+            for (var i = 0; i < data.Length; i++)
+                data[i] ^= key[i % keyLen];
+            // 反序
+            for (int i = 0, j = data.Length - 1; i < j; i++, j--)
+                (data[i], data[j]) = (data[j], data[i]);
+            return data;
+        }
+    }
+}