124 lines
2.8 KiB
C#
124 lines
2.8 KiB
C#
using System;
|
|
using System.IO;
|
|
using System.Collections;
|
|
using System.Collections.Generic;
|
|
using UnityEngine;
|
|
|
|
namespace YooAsset
|
|
{
|
|
internal static class CacheSystem
|
|
{
|
|
private readonly static Dictionary<string, PatchBundle> _cachedDic = new Dictionary<string, PatchBundle>(1000);
|
|
|
|
/// <summary>
|
|
/// 初始化时的验证级别
|
|
/// </summary>
|
|
public static EVerifyLevel InitVerifyLevel { private set; get; }
|
|
|
|
public static void Initialize(EVerifyLevel initVerifyLevel)
|
|
{
|
|
InitVerifyLevel = initVerifyLevel;
|
|
}
|
|
public static void DestroyAll()
|
|
{
|
|
_cachedDic.Clear();
|
|
}
|
|
|
|
/// <summary>
|
|
/// 查询是否为验证文件
|
|
/// 注意：被收录的文件完整性是绝对有效的
|
|
/// </summary>
|
|
public static bool IsCached(PatchBundle patchBundle)
|
|
{
|
|
string fileHash = patchBundle.FileHash;
|
|
if (_cachedDic.ContainsKey(fileHash))
|
|
{
|
|
string filePath = patchBundle.CachedFilePath;
|
|
if (File.Exists(filePath))
|
|
{
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
_cachedDic.Remove(fileHash);
|
|
YooLogger.Error($"Cache file is missing : {filePath}");
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 缓存补丁包文件
|
|
/// </summary>
|
|
public static void CacheBundle(PatchBundle patchBundle)
|
|
{
|
|
string fileHash = patchBundle.FileHash;
|
|
if (_cachedDic.ContainsKey(fileHash) == false)
|
|
{
|
|
string filePath = patchBundle.CachedFilePath;
|
|
YooLogger.Log($"Cache verify file : {filePath}");
|
|
_cachedDic.Add(fileHash, patchBundle);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 验证补丁包文件
|
|
/// </summary>
|
|
public static bool VerifyBundle(PatchBundle patchBundle, EVerifyLevel verifyLevel)
|
|
{
|
|
return VerifyContentInternal(patchBundle.CachedFilePath, patchBundle.FileSize, patchBundle.FileCRC, verifyLevel);
|
|
}
|
|
|
|
/// <summary>
|
|
/// 验证并缓存补丁包文件
|
|
/// </summary>
|
|
public static bool VerifyAndCacheBundle(PatchBundle patchBundle, EVerifyLevel verifyLevel)
|
|
{
|
|
if (VerifyContentInternal(patchBundle.CachedFilePath, patchBundle.FileSize, patchBundle.FileCRC, verifyLevel))
|
|
{
|
|
CacheBundle(patchBundle);
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// 验证文件完整性
|
|
/// </summary>
|
|
public static bool VerifyContentInternal(string filePath, long fileSize, string fileCRC, EVerifyLevel verifyLevel)
|
|
{
|
|
try
|
|
{
|
|
if (File.Exists(filePath) == false)
|
|
return false;
|
|
|
|
// 先验证文件大小
|
|
long size = FileUtility.GetFileSize(filePath);
|
|
if (size != fileSize)
|
|
return false;
|
|
|
|
// 再验证文件CRC
|
|
if (verifyLevel == EVerifyLevel.High)
|
|
{
|
|
string crc = HashUtility.FileCRC32(filePath);
|
|
return crc == fileCRC;
|
|
}
|
|
else
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
catch (Exception)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
} |