更新demo

更新demo
This commit is contained in:
ALEXTANG
2024-03-18 15:35:15 +08:00
parent 17a5d7425c
commit a2255b80cd
1028 changed files with 55353 additions and 35278 deletions

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@@ -1,23 +1,28 @@

using UnityEngine;
namespace YooAsset
{
internal sealed class CompletedDownloader : DownloaderBase
{
public CompletedDownloader(BundleInfo bundleInfo) : base(bundleInfo, 0, 0)
{
_downloadProgress = 1f;
_downloadedBytes = (ulong)bundleInfo.Bundle.FileSize;
_status = EStatus.Succeed;
}
internal sealed class CompletedDownloader : DownloaderBase
{
public CompletedDownloader(BundleInfo bundleInfo) : base(bundleInfo, null, 0, 0)
{
DownloadProgress = 1f;
DownloadedBytes = (ulong)bundleInfo.Bundle.FileSize;
_status = EStatus.Succeed;
}
public override void SendRequest(params object[] param)
{
}
public override void Update()
{
}
public override void Abort()
{
}
}
public override void SendRequest(params object[] param)
{
}
public override void Update()
{
}
public override void Abort()
{
}
public override AssetBundle GetAssetBundle()
{
throw new System.NotImplementedException();
}
}
}

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@@ -1,87 +0,0 @@
using System;
using System.IO;
using UnityEngine;
using UnityEngine.Networking;
namespace YooAsset
{
/// <summary>
/// 支持Unity2018版本的断点续传下载器
/// </summary>
internal class DownloadHandlerFileRange : DownloadHandlerScript
{
private string _fileSavePath;
private long _fileTotalSize;
private UnityWebRequest _webRequest;
private FileStream _fileStream;
private long _localFileSize = 0;
private long _curFileSize = 0;
public DownloadHandlerFileRange(string fileSavePath, long fileTotalSize, UnityWebRequest webRequest) : base(new byte[1024 * 1024])
{
_fileSavePath = fileSavePath;
_fileTotalSize = fileTotalSize;
_webRequest = webRequest;
if (File.Exists(fileSavePath))
{
FileInfo fileInfo = new FileInfo(fileSavePath);
_localFileSize = fileInfo.Length;
}
_fileStream = new FileStream(_fileSavePath, FileMode.Append, FileAccess.Write);
_curFileSize = _localFileSize;
}
protected override bool ReceiveData(byte[] data, int dataLength)
{
if (data == null || dataLength == 0 || _webRequest.responseCode >= 400)
return false;
if (_fileStream == null)
return false;
_fileStream.Write(data, 0, dataLength);
_curFileSize += dataLength;
return true;
}
/// <summary>
/// UnityWebRequest.downloadHandler.data
/// </summary>
protected override byte[] GetData()
{
return null;
}
/// <summary>
/// UnityWebRequest.downloadHandler.text
/// </summary>
protected override string GetText()
{
return null;
}
/// <summary>
/// UnityWebRequest.downloadProgress
/// </summary>
protected override float GetProgress()
{
return _fileTotalSize == 0 ? 0 : ((float)_curFileSize) / _fileTotalSize;
}
/// <summary>
/// 释放下载句柄
/// </summary>
public void Cleanup()
{
if (_fileStream != null)
{
_fileStream.Flush();
_fileStream.Dispose();
_fileStream = null;
}
}
}
}

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@@ -1,11 +0,0 @@
fileFormatVersion: 2
guid: 94254ab8e4496214884c11a891c131c6
MonoImporter:
externalObjects: {}
serializedVersion: 2
defaultReferences: []
executionOrder: 0
icon: {instanceID: 0}
userData:
assetBundleName:
assetBundleVariant:

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@@ -1,193 +1,182 @@
using System.IO;
using System;
using UnityEngine;
using UnityEngine.Networking;
namespace YooAsset
{
internal abstract class DownloaderBase
{
public enum EStatus
{
None = 0,
Succeed,
Failed
}
internal abstract class DownloaderBase
{
public enum EStatus
{
None = 0,
Succeed,
Failed
}
protected readonly BundleInfo _bundleInfo;
protected readonly int _timeout;
protected int _failedTryAgain;
protected readonly BundleInfo _bundleInfo;
protected readonly System.Type _requesterType;
protected readonly int _timeout;
protected int _failedTryAgain;
protected UnityWebRequest _webRequest;
protected EStatus _status = EStatus.None;
protected string _lastError = string.Empty;
protected long _lastCode = 0;
protected IWebRequester _requester;
protected EStatus _status = EStatus.None;
protected string _lastestNetError = string.Empty;
protected long _lastestHttpCode = 0;
// 请求次数
protected int _requestCount = 0;
protected string _requestURL;
// 请求次数
protected int _requestCount = 0;
protected string _requestURL;
// 下载进度
protected float _downloadProgress = 0f;
protected ulong _downloadedBytes = 0;
// 超时相关
protected bool _isAbort = false;
protected ulong _latestDownloadBytes;
protected float _latestDownloadRealtime;
protected float _tryAgainTimer;
// 超时相关
protected bool _isAbort = false;
protected ulong _latestDownloadBytes;
protected float _latestDownloadRealtime;
protected float _tryAgainTimer;
/// <summary>
/// 是否等待异步结束
/// 警告只能用于解压APP内部资源
/// </summary>
public bool WaitForAsyncComplete = false;
/// <summary>
/// 是否等待异步结束
/// 警告只能用于解压APP内部资源
/// </summary>
public bool WaitForAsyncComplete = false;
/// <summary>
/// 下载进度0f~1f
/// </summary>
public float DownloadProgress { protected set; get; }
/// <summary>
/// 下载进度0f~1f
/// </summary>
public float DownloadProgress
{
get { return _downloadProgress; }
}
/// <summary>
/// 已经下载的总字节数
/// </summary>
public ulong DownloadedBytes { protected set; get; }
/// <summary>
/// 已经下载的总字节
/// </summary>
public ulong DownloadedBytes
{
get { return _downloadedBytes; }
}
/// <summary>
/// 引用计
/// </summary>
public int RefCount { private set; get; }
public DownloaderBase(BundleInfo bundleInfo, int failedTryAgain, int timeout)
{
_bundleInfo = bundleInfo;
_failedTryAgain = failedTryAgain;
_timeout = timeout;
}
public abstract void SendRequest(params object[] param);
public abstract void Update();
public abstract void Abort();
public DownloaderBase(BundleInfo bundleInfo, System.Type requesterType, int failedTryAgain, int timeout)
{
_bundleInfo = bundleInfo;
_requesterType = requesterType;
_failedTryAgain = failedTryAgain;
_timeout = timeout;
}
public abstract void SendRequest(params object[] args);
public abstract void Update();
public abstract void Abort();
public abstract AssetBundle GetAssetBundle();
/// <summary>
/// 获取下载文件的大小
/// </summary>
/// <returns></returns>
public long GetDownloadFileSize()
{
return _bundleInfo.Bundle.FileSize;
}
/// <summary>
/// 引用(引用计数递加)
/// </summary>
public void Reference()
{
RefCount++;
}
/// <summary>
/// 获取下载文件的资源包名
/// </summary>
public string GetDownloadBundleName()
{
return _bundleInfo.Bundle.BundleName;
}
/// <summary>
/// 释放(引用计数递减)
/// </summary>
public void Release()
{
RefCount--;
}
/// <summary>
/// 检测下载器是否已经完成(无论成功或失败)
/// </summary>
public bool IsDone()
{
return _status == EStatus.Succeed || _status == EStatus.Failed;
}
/// <summary>
/// 检测下载器是否已经完成(无论成功或失败)
/// </summary>
public bool IsDone()
{
return _status == EStatus.Succeed || _status == EStatus.Failed;
}
/// <summary>
/// 下载过程是否发生错误
/// </summary>
public bool HasError()
{
return _status == EStatus.Failed;
}
/// <summary>
/// 下载过程是否发生错误
/// </summary>
public bool HasError()
{
return _status == EStatus.Failed;
}
/// <summary>
/// 按照错误级别打印错误
/// </summary>
public void ReportError()
{
YooLogger.Error(GetLastError());
}
/// <summary>
/// 按照错误级别打印错误
/// </summary>
public void ReportError()
{
YooLogger.Error(GetLastError());
}
/// <summary>
/// 按照警告级别打印错误
/// </summary>
public void ReportWarning()
{
YooLogger.Warning(GetLastError());
}
/// <summary>
/// 按照警告级别打印错误
/// </summary>
public void ReportWarning()
{
YooLogger.Warning(GetLastError());
}
/// <summary>
/// 获取最近发生的错误信息
/// </summary>
public string GetLastError()
{
return $"Failed to download : {_requestURL} Error : {_lastError} Code : {_lastCode}";
}
/// <summary>
/// 获取最近发生的错误信息
/// </summary>
public string GetLastError()
{
return $"Failed to download : {_requestURL} Error : {_lastestNetError} Code : {_lastestHttpCode}";
}
/// <summary>
/// 获取下载文件的大小
/// </summary>
/// <returns></returns>
public long GetDownloadFileSize()
{
return _bundleInfo.Bundle.FileSize;
}
/// <summary>
/// 获取下载的资源包名称
/// </summary>
public string GetDownloadBundleName()
{
return _bundleInfo.Bundle.BundleName;
}
/// <summary>
/// 获取网络请求地址
/// </summary>
protected string GetRequestURL()
{
// 轮流返回请求地址
_requestCount++;
if (_requestCount % 2 == 0)
return _bundleInfo.RemoteFallbackURL;
else
return _bundleInfo.RemoteMainURL;
}
/// <summary>
/// 获取网络请求地址
/// </summary>
protected string GetRequestURL()
{
// 轮流返回请求地址
_requestCount++;
if (_requestCount % 2 == 0)
return _bundleInfo.RemoteFallbackURL;
else
return _bundleInfo.RemoteMainURL;
}
/// <summary>
/// 超时判定方法
/// </summary>
protected void CheckTimeout()
{
// 注意:在连续时间段内无新增下载数据及判定为超时
if (_isAbort == false)
{
if (_latestDownloadBytes != DownloadedBytes)
{
_latestDownloadBytes = DownloadedBytes;
_latestDownloadRealtime = Time.realtimeSinceStartup;
}
/// <summary>
/// 超时判定方法
/// </summary>
protected void CheckTimeout()
{
// 注意:在连续时间段内无新增下载数据及判定为超时
if (_isAbort == false)
{
if (_latestDownloadBytes != DownloadedBytes)
{
_latestDownloadBytes = DownloadedBytes;
_latestDownloadRealtime = Time.realtimeSinceStartup;
}
float offset = Time.realtimeSinceStartup - _latestDownloadRealtime;
if (offset > _timeout)
{
YooLogger.Warning($"Web file request timeout : {_requestURL}");
_webRequest.Abort();
_isAbort = true;
}
}
}
/// <summary>
/// 缓存下载文件
/// </summary>
protected void CachingFile(string tempFilePath)
{
string infoFilePath = _bundleInfo.Bundle.CachedInfoFilePath;
string dataFilePath = _bundleInfo.Bundle.CachedDataFilePath;
string dataFileCRC = _bundleInfo.Bundle.FileCRC;
long dataFileSize = _bundleInfo.Bundle.FileSize;
if (File.Exists(infoFilePath))
File.Delete(infoFilePath);
if (File.Exists(dataFilePath))
File.Delete(dataFilePath);
FileInfo fileInfo = new FileInfo(tempFilePath);
fileInfo.MoveTo(dataFilePath);
// 写入信息文件记录验证数据
CacheFileInfo.WriteInfoToFile(infoFilePath, dataFileCRC, dataFileSize);
// 记录缓存文件
var wrapper = new PackageCache.RecordWrapper(infoFilePath, dataFilePath, dataFileCRC, dataFileSize);
CacheSystem.RecordFile(_bundleInfo.Bundle.PackageName, _bundleInfo.Bundle.CacheGUID, wrapper);
}
}
float offset = Time.realtimeSinceStartup - _latestDownloadRealtime;
if (offset > _timeout)
{
YooLogger.Warning($"Web file request timeout : {_requestURL}");
if (_requester != null)
_requester.Abort();
_isAbort = true;
}
}
}
}
}

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@@ -0,0 +1,216 @@
using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using UnityEngine;
namespace YooAsset
{
/// <summary>
/// 文件下载器
/// </summary>
internal sealed class FileDownloader : DownloaderBase
{
private enum ESteps
{
None,
PrepareDownload,
CreateDownloader,
CheckDownload,
VerifyTempFile,
WaitingVerifyTempFile,
CachingFile,
TryAgain,
Done,
}
private VerifyTempFileOperation _verifyFileOp = null;
private ESteps _steps = ESteps.None;
public FileDownloader(BundleInfo bundleInfo, System.Type requesterType, int failedTryAgain, int timeout) : base(bundleInfo, requesterType, failedTryAgain, timeout)
{
}
public override void SendRequest(params object[] args)
{
if (_steps == ESteps.None)
{
_steps = ESteps.PrepareDownload;
}
}
public override void Update()
{
if (_steps == ESteps.None)
return;
if (IsDone())
return;
// 准备下载
if (_steps == ESteps.PrepareDownload)
{
// 获取请求地址
_requestURL = GetRequestURL();
// 重置变量
DownloadProgress = 0f;
DownloadedBytes = 0;
// 重置变量
_isAbort = false;
_latestDownloadBytes = 0;
_latestDownloadRealtime = Time.realtimeSinceStartup;
// 重置计时器
if (_tryAgainTimer > 0f)
YooLogger.Warning($"Try again download : {_requestURL}");
_tryAgainTimer = 0f;
_steps = ESteps.CreateDownloader;
}
// 创建下载器
if (_steps == ESteps.CreateDownloader)
{
_requester = (IWebRequester)Activator.CreateInstance(_requesterType);
_requester.Create(_requestURL, _bundleInfo);
_steps = ESteps.CheckDownload;
}
// 检测下载结果
if (_steps == ESteps.CheckDownload)
{
_requester.Update();
DownloadedBytes = _requester.DownloadedBytes;
DownloadProgress = _requester.DownloadProgress;
if (_requester.IsDone() == false)
{
CheckTimeout();
return;
}
_lastestNetError = _requester.RequestNetError;
_lastestHttpCode = _requester.RequestHttpCode;
if (_requester.Status != ERequestStatus.Success)
{
_steps = ESteps.TryAgain;
}
else
{
_steps = ESteps.VerifyTempFile;
}
}
// 验证下载文件
if (_steps == ESteps.VerifyTempFile)
{
VerifyTempFileElement element = new VerifyTempFileElement(_bundleInfo.TempDataFilePath, _bundleInfo.Bundle.FileCRC, _bundleInfo.Bundle.FileSize);
_verifyFileOp = VerifyTempFileOperation.CreateOperation(element);
OperationSystem.StartOperation(_bundleInfo.Bundle.PackageName, _verifyFileOp);
_steps = ESteps.WaitingVerifyTempFile;
}
// 等待验证完成
if (_steps == ESteps.WaitingVerifyTempFile)
{
if (WaitForAsyncComplete)
_verifyFileOp.InternalOnUpdate();
if (_verifyFileOp.IsDone == false)
return;
if (_verifyFileOp.Status == EOperationStatus.Succeed)
{
_steps = ESteps.CachingFile;
}
else
{
string tempFilePath = _bundleInfo.TempDataFilePath;
if (File.Exists(tempFilePath))
File.Delete(tempFilePath);
_lastestNetError = _verifyFileOp.Error;
_steps = ESteps.TryAgain;
}
}
// 缓存下载文件
if (_steps == ESteps.CachingFile)
{
try
{
CachingFile();
_status = EStatus.Succeed;
_steps = ESteps.Done;
}
catch (Exception e)
{
_lastestNetError = e.Message;
_steps = ESteps.TryAgain;
}
}
// 重新尝试下载
if (_steps == ESteps.TryAgain)
{
if (_failedTryAgain <= 0)
{
ReportError();
_status = EStatus.Failed;
_steps = ESteps.Done;
return;
}
_tryAgainTimer += Time.unscaledDeltaTime;
if (_tryAgainTimer > 1f)
{
_failedTryAgain--;
_steps = ESteps.PrepareDownload;
ReportWarning();
}
}
}
public override void Abort()
{
if (_requester != null)
_requester.Abort();
if (IsDone() == false)
{
_status = EStatus.Failed;
_steps = ESteps.Done;
_lastestNetError = "user abort";
_lastestHttpCode = 0;
}
}
public override AssetBundle GetAssetBundle()
{
throw new NotImplementedException();
}
/// <summary>
/// 缓存下载文件
/// </summary>
private void CachingFile()
{
string tempFilePath = _bundleInfo.TempDataFilePath;
string infoFilePath = _bundleInfo.CachedInfoFilePath;
string dataFilePath = _bundleInfo.CachedDataFilePath;
string dataFileCRC = _bundleInfo.Bundle.FileCRC;
long dataFileSize = _bundleInfo.Bundle.FileSize;
if (File.Exists(infoFilePath))
File.Delete(infoFilePath);
if (File.Exists(dataFilePath))
File.Delete(dataFilePath);
// 移动临时文件路径
FileInfo fileInfo = new FileInfo(tempFilePath);
fileInfo.MoveTo(dataFilePath);
// 写入信息文件记录验证数据
CacheHelper.WriteInfoToFile(infoFilePath, dataFileCRC, dataFileSize);
// 记录缓存文件
_bundleInfo.CacheRecord();
}
}
}

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@@ -1,229 +0,0 @@
using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using UnityEngine;
using UnityEngine.Networking;
namespace YooAsset
{
/// <summary>
/// 普通的下载器
/// </summary>
internal sealed class FileGeneralDownloader : DownloaderBase
{
private enum ESteps
{
None,
PrepareDownload,
CreateDownloader,
CheckDownload,
VerifyTempFile,
WaitingVerifyTempFile,
CachingFile,
TryAgain,
Done,
}
private readonly string _tempFilePath;
private VerifyTempFileOperation _verifyFileOp = null;
private ESteps _steps = ESteps.None;
public FileGeneralDownloader(BundleInfo bundleInfo, int failedTryAgain, int timeout) : base(bundleInfo, failedTryAgain, timeout)
{
_tempFilePath = bundleInfo.Bundle.TempDataFilePath;
}
public override void SendRequest(params object[] param)
{
if (_steps == ESteps.None)
{
_steps = ESteps.PrepareDownload;
}
}
public override void Update()
{
if (_steps == ESteps.None)
return;
if (IsDone())
return;
// 准备下载
if (_steps == ESteps.PrepareDownload)
{
// 获取请求地址
_requestURL = GetRequestURL();
// 重置变量
_downloadProgress = 0f;
_downloadedBytes = 0;
// 重置变量
_isAbort = false;
_latestDownloadBytes = 0;
_latestDownloadRealtime = Time.realtimeSinceStartup;
// 重置计时器
if(_tryAgainTimer > 0f)
YooLogger.Warning($"Try again download : {_requestURL}");
_tryAgainTimer = 0f;
// 删除临时文件
if (File.Exists(_tempFilePath))
File.Delete(_tempFilePath);
_steps = ESteps.CreateDownloader;
}
// 创建下载器
if (_steps == ESteps.CreateDownloader)
{
_webRequest = DownloadSystem.NewRequest(_requestURL);
DownloadHandlerFile handler = new DownloadHandlerFile(_tempFilePath);
handler.removeFileOnAbort = true;
_webRequest.downloadHandler = handler;
_webRequest.disposeDownloadHandlerOnDispose = true;
_webRequest.SendWebRequest();
_steps = ESteps.CheckDownload;
}
// 检测下载结果
if (_steps == ESteps.CheckDownload)
{
_downloadProgress = _webRequest.downloadProgress;
_downloadedBytes = _webRequest.downloadedBytes;
if (_webRequest.isDone == false)
{
CheckTimeout();
return;
}
bool hasError = false;
// 检查网络错误
#if UNITY_2020_3_OR_NEWER
if (_webRequest.result != UnityWebRequest.Result.Success)
{
hasError = true;
_lastError = _webRequest.error;
_lastCode = _webRequest.responseCode;
}
#else
if (_webRequest.isNetworkError || _webRequest.isHttpError)
{
hasError = true;
_lastError = _webRequest.error;
_lastCode = _webRequest.responseCode;
}
#endif
// 如果网络异常
if (hasError)
{
// 下载失败之后删除文件
if (File.Exists(_tempFilePath))
File.Delete(_tempFilePath);
_steps = ESteps.TryAgain;
}
else
{
_steps = ESteps.VerifyTempFile;
}
// 最终释放下载器
DisposeWebRequest();
}
// 验证下载文件
if (_steps == ESteps.VerifyTempFile)
{
VerifyTempFileElement element = new VerifyTempFileElement(_bundleInfo.Bundle.TempDataFilePath, _bundleInfo.Bundle.FileCRC, _bundleInfo.Bundle.FileSize);
_verifyFileOp = VerifyTempFileOperation.CreateOperation(element);
OperationSystem.StartOperation(_verifyFileOp);
_steps = ESteps.WaitingVerifyTempFile;
}
// 等待验证完成
if (_steps == ESteps.WaitingVerifyTempFile)
{
if (WaitForAsyncComplete)
_verifyFileOp.Update();
if (_verifyFileOp.IsDone == false)
return;
if (_verifyFileOp.Status == EOperationStatus.Succeed)
{
_steps = ESteps.CachingFile;
}
else
{
if (File.Exists(_tempFilePath))
File.Delete(_tempFilePath);
_lastError = _verifyFileOp.Error;
_steps = ESteps.TryAgain;
}
}
// 缓存下载文件
if (_steps == ESteps.CachingFile)
{
try
{
CachingFile(_tempFilePath);
_status = EStatus.Succeed;
_steps = ESteps.Done;
_lastError = string.Empty;
_lastCode = 0;
}
catch (Exception e)
{
_lastError = e.Message;
_steps = ESteps.TryAgain;
}
}
// 重新尝试下载
if (_steps == ESteps.TryAgain)
{
if (_failedTryAgain <= 0)
{
ReportError();
_status = EStatus.Failed;
_steps = ESteps.Done;
return;
}
_tryAgainTimer += Time.unscaledDeltaTime;
if (_tryAgainTimer > 1f)
{
_failedTryAgain--;
_steps = ESteps.PrepareDownload;
ReportWarning();
}
}
}
public override void Abort()
{
if (IsDone() == false)
{
_status = EStatus.Failed;
_steps = ESteps.Done;
_lastError = "user abort";
_lastCode = 0;
DisposeWebRequest();
}
}
private void DisposeWebRequest()
{
if (_webRequest != null)
{
_webRequest.Dispose();
_webRequest = null;
}
}
}
}

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@@ -1,295 +0,0 @@
using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using UnityEngine;
using UnityEngine.Networking;
namespace YooAsset
{
/// <summary>
/// 断点续传下载器
/// </summary>
internal sealed class FileResumeDownloader : DownloaderBase
{
private enum ESteps
{
None,
CheckTempFile,
WaitingCheckTempFile,
PrepareDownload,
CreateDownloader,
CheckDownload,
VerifyTempFile,
WaitingVerifyTempFile,
CachingFile,
TryAgain,
Done,
}
private readonly string _tempFilePath;
private DownloadHandlerFileRange _downloadHandle = null;
private VerifyTempFileOperation _checkFileOp = null;
private VerifyTempFileOperation _verifyFileOp = null;
private ESteps _steps = ESteps.None;
// 重置变量
private ulong _fileOriginLength;
public FileResumeDownloader(BundleInfo bundleInfo, int failedTryAgain, int timeout) : base(bundleInfo, failedTryAgain, timeout)
{
_tempFilePath = bundleInfo.Bundle.TempDataFilePath;
}
public override void SendRequest(params object[] param)
{
if (_steps == ESteps.None)
{
_steps = ESteps.CheckTempFile;
}
}
public override void Update()
{
if (_steps == ESteps.None)
return;
if (IsDone())
return;
// 检测临时文件
if (_steps == ESteps.CheckTempFile)
{
VerifyTempFileElement element = new VerifyTempFileElement(_bundleInfo.Bundle.TempDataFilePath, _bundleInfo.Bundle.FileCRC, _bundleInfo.Bundle.FileSize);
_checkFileOp = VerifyTempFileOperation.CreateOperation(element);
OperationSystem.StartOperation(_checkFileOp);
_steps = ESteps.WaitingCheckTempFile;
}
// 等待检测结果
if (_steps == ESteps.WaitingCheckTempFile)
{
if (WaitForAsyncComplete)
_checkFileOp.Update();
if (_checkFileOp.IsDone == false)
return;
if (_checkFileOp.Status == EOperationStatus.Succeed)
{
_steps = ESteps.CachingFile;
}
else
{
if (_checkFileOp.VerifyResult == EVerifyResult.FileOverflow)
{
if (File.Exists(_tempFilePath))
File.Delete(_tempFilePath);
}
_steps = ESteps.PrepareDownload;
}
}
// 创建下载器
if (_steps == ESteps.PrepareDownload)
{
// 获取请求地址
_requestURL = GetRequestURL();
// 重置变量
_downloadProgress = 0f;
_downloadedBytes = 0;
// 重置变量
_isAbort = false;
_latestDownloadBytes = 0;
_latestDownloadRealtime = Time.realtimeSinceStartup;
_fileOriginLength = 0;
// 重置计时器
if (_tryAgainTimer > 0f)
YooLogger.Warning($"Try again download : {_requestURL}");
_tryAgainTimer = 0f;
_steps = ESteps.CreateDownloader;
}
// 创建下载器
if (_steps == ESteps.CreateDownloader)
{
long fileLength = -1;
if (File.Exists(_tempFilePath))
{
FileInfo fileInfo = new FileInfo(_tempFilePath);
fileLength = fileInfo.Length;
_fileOriginLength = (ulong)fileLength;
_downloadedBytes = _fileOriginLength;
}
#if UNITY_2019_4_OR_NEWER
_webRequest = DownloadSystem.NewRequest(_requestURL);
var handler = new DownloadHandlerFile(_tempFilePath, true);
handler.removeFileOnAbort = false;
#else
_webRequest = DownloadSystem.NewRequest(_requestURL);
var handler = new DownloadHandlerFileRange(_tempFilePath, _bundleInfo.Bundle.FileSize, _webRequest);
_downloadHandle = handler;
#endif
_webRequest.downloadHandler = handler;
_webRequest.disposeDownloadHandlerOnDispose = true;
if (fileLength > 0)
_webRequest.SetRequestHeader("Range", $"bytes={fileLength}-");
_webRequest.SendWebRequest();
_steps = ESteps.CheckDownload;
}
// 检测下载结果
if (_steps == ESteps.CheckDownload)
{
_downloadProgress = _webRequest.downloadProgress;
_downloadedBytes = _fileOriginLength + _webRequest.downloadedBytes;
if (_webRequest.isDone == false)
{
CheckTimeout();
return;
}
bool hasError = false;
// 检查网络错误
#if UNITY_2020_3_OR_NEWER
if (_webRequest.result != UnityWebRequest.Result.Success)
{
hasError = true;
_lastError = _webRequest.error;
_lastCode = _webRequest.responseCode;
}
#else
if (_webRequest.isNetworkError || _webRequest.isHttpError)
{
hasError = true;
_lastError = _webRequest.error;
_lastCode = _webRequest.responseCode;
}
#endif
// 如果网络异常
if (hasError)
{
// 注意:下载断点续传文件发生特殊错误码之后删除文件
if (DownloadSystem.ClearFileResponseCodes != null)
{
if (DownloadSystem.ClearFileResponseCodes.Contains(_webRequest.responseCode))
{
if (File.Exists(_tempFilePath))
File.Delete(_tempFilePath);
}
}
_steps = ESteps.TryAgain;
}
else
{
_steps = ESteps.VerifyTempFile;
}
// 最终释放下载器
DisposeWebRequest();
}
// 验证下载文件
if (_steps == ESteps.VerifyTempFile)
{
VerifyTempFileElement element = new VerifyTempFileElement(_bundleInfo.Bundle.TempDataFilePath, _bundleInfo.Bundle.FileCRC, _bundleInfo.Bundle.FileSize);
_verifyFileOp = VerifyTempFileOperation.CreateOperation(element);
OperationSystem.StartOperation(_verifyFileOp);
_steps = ESteps.WaitingVerifyTempFile;
}
// 等待验证完成
if (_steps == ESteps.WaitingVerifyTempFile)
{
if (WaitForAsyncComplete)
_verifyFileOp.Update();
if (_verifyFileOp.IsDone == false)
return;
if (_verifyFileOp.Status == EOperationStatus.Succeed)
{
_steps = ESteps.CachingFile;
}
else
{
if (File.Exists(_tempFilePath))
File.Delete(_tempFilePath);
_lastError = _verifyFileOp.Error;
_steps = ESteps.TryAgain;
}
}
// 缓存下载文件
if (_steps == ESteps.CachingFile)
{
try
{
CachingFile(_tempFilePath);
_status = EStatus.Succeed;
_steps = ESteps.Done;
_lastError = string.Empty;
_lastCode = 0;
}
catch (Exception e)
{
_lastError = e.Message;
_steps = ESteps.TryAgain;
}
}
// 重新尝试下载
if (_steps == ESteps.TryAgain)
{
if (_failedTryAgain <= 0)
{
ReportError();
_status = EStatus.Failed;
_steps = ESteps.Done;
return;
}
_tryAgainTimer += Time.unscaledDeltaTime;
if (_tryAgainTimer > 1f)
{
_failedTryAgain--;
_steps = ESteps.PrepareDownload;
ReportWarning();
}
}
}
public override void Abort()
{
if (IsDone() == false)
{
_status = EStatus.Failed;
_steps = ESteps.Done;
_lastError = "user abort";
_lastCode = 0;
DisposeWebRequest();
}
}
private void DisposeWebRequest()
{
if (_downloadHandle != null)
{
_downloadHandle.Cleanup();
_downloadHandle = null;
}
if (_webRequest != null)
{
_webRequest.Dispose();
_webRequest = null;
}
}
}
}

View File

@@ -1,11 +0,0 @@
fileFormatVersion: 2
guid: a439c9a8f36dcc942b92a8e8af927237
MonoImporter:
externalObjects: {}
serializedVersion: 2
defaultReferences: []
executionOrder: 0
icon: {instanceID: 0}
userData:
assetBundleName:
assetBundleVariant:

View File

@@ -3,209 +3,138 @@ using System.Collections;
using System.Collections.Generic;
using System.IO;
using UnityEngine;
using UnityEngine.Networking;
namespace YooAsset
{
internal sealed class WebDownloader : DownloaderBase
{
private enum ESteps
{
None,
PrepareDownload,
CreateDownloader,
CheckDownload,
VerifyTempFile,
WaitingVerifyTempFile,
CachingFile,
TryAgain,
Done,
}
internal sealed class WebDownloader : DownloaderBase
{
private enum ESteps
{
None,
PrepareDownload,
CreateDownloader,
CheckDownload,
TryAgain,
Done,
}
private DownloadHandlerAssetBundle _downloadhandler;
private ESteps _steps = ESteps.None;
private bool _getAssetBundle = false;
private AssetBundle _cacheAssetBundle;
private ESteps _steps = ESteps.None;
private bool _getAssetBundle = false;
public WebDownloader(BundleInfo bundleInfo, int failedTryAgain, int timeout) : base(bundleInfo, failedTryAgain, timeout)
{
}
public override void SendRequest(params object[] param)
{
if (_steps == ESteps.None)
{
if (param.Length > 0)
{
_getAssetBundle = (bool)param[0];
}
_steps = ESteps.PrepareDownload;
}
}
public override void Update()
{
if (_steps == ESteps.None)
return;
if (IsDone())
return;
public WebDownloader(BundleInfo bundleInfo, System.Type requesterType, int failedTryAgain, int timeout) : base(bundleInfo, requesterType, failedTryAgain, timeout)
{
}
public override void SendRequest(params object[] args)
{
if (_steps == ESteps.None)
{
if (args.Length > 0)
{
_getAssetBundle = (bool)args[0];
}
_steps = ESteps.PrepareDownload;
}
}
public override void Update()
{
if (_steps == ESteps.None)
return;
if (IsDone())
return;
// 创建下载器
if (_steps == ESteps.PrepareDownload)
{
// 重置变量
_downloadProgress = 0f;
_downloadedBytes = 0;
// 创建下载器
if (_steps == ESteps.PrepareDownload)
{
// 获取请求地址
_requestURL = GetRequestURL();
// 重置变量
_isAbort = false;
_latestDownloadBytes = 0;
_latestDownloadRealtime = Time.realtimeSinceStartup;
_tryAgainTimer = 0f;
// 重置变量
DownloadProgress = 0f;
DownloadedBytes = 0;
// 获取请求地址
_requestURL = GetRequestURL();
_steps = ESteps.CreateDownloader;
}
// 重置变量
_isAbort = false;
_latestDownloadBytes = 0;
_latestDownloadRealtime = Time.realtimeSinceStartup;
// 创建下载
if (_steps == ESteps.CreateDownloader)
{
_webRequest = DownloadSystem.NewRequest(_requestURL);
// 重置计时
if (_tryAgainTimer > 0f)
YooLogger.Warning($"Try again download : {_requestURL}");
_tryAgainTimer = 0f;
if (CacheSystem.DisableUnityCacheOnWebGL)
{
uint crc = _bundleInfo.Bundle.UnityCRC;
_downloadhandler = new DownloadHandlerAssetBundle(_requestURL, crc);
#if UNITY_2020_3_OR_NEWER
_downloadhandler.autoLoadAssetBundle = false;
#endif
}
else
{
uint crc = _bundleInfo.Bundle.UnityCRC;
var hash = Hash128.Parse(_bundleInfo.Bundle.FileHash);
_downloadhandler = new DownloadHandlerAssetBundle(_requestURL, hash, crc);
#if UNITY_2020_3_OR_NEWER
_downloadhandler.autoLoadAssetBundle = false;
#endif
}
_steps = ESteps.CreateDownloader;
}
_webRequest.downloadHandler = _downloadhandler;
_webRequest.disposeDownloadHandlerOnDispose = false;
_webRequest.SendWebRequest();
_steps = ESteps.CheckDownload;
}
// 创建下载器
if (_steps == ESteps.CreateDownloader)
{
_requester = (IWebRequester)Activator.CreateInstance(_requesterType);
_requester.Create(_requestURL, _bundleInfo, _getAssetBundle);
_steps = ESteps.CheckDownload;
}
// 检测下载结果
if (_steps == ESteps.CheckDownload)
{
_downloadProgress = _webRequest.downloadProgress;
_downloadedBytes = _webRequest.downloadedBytes;
if (_webRequest.isDone == false)
{
CheckTimeout();
return;
}
// 检测下载结果
if (_steps == ESteps.CheckDownload)
{
_requester.Update();
DownloadedBytes = _requester.DownloadedBytes;
DownloadProgress = _requester.DownloadProgress;
if (_requester.IsDone() == false)
{
CheckTimeout();
return;
}
bool hasError = false;
_lastestNetError = _requester.RequestNetError;
_lastestHttpCode = _requester.RequestHttpCode;
if (_requester.Status != ERequestStatus.Success)
{
_steps = ESteps.TryAgain;
}
else
{
_status = EStatus.Succeed;
_steps = ESteps.Done;
}
}
// 检查网络错误
#if UNITY_2020_3_OR_NEWER
if (_webRequest.result != UnityWebRequest.Result.Success)
{
hasError = true;
_lastError = _webRequest.error;
_lastCode = _webRequest.responseCode;
}
#else
if (_webRequest.isNetworkError || _webRequest.isHttpError)
{
hasError = true;
_lastError = _webRequest.error;
_lastCode = _webRequest.responseCode;
}
#endif
// 重新尝试下载
if (_steps == ESteps.TryAgain)
{
if (_failedTryAgain <= 0)
{
ReportError();
_status = EStatus.Failed;
_steps = ESteps.Done;
return;
}
// 如果网络异常
if (hasError)
{
_steps = ESteps.TryAgain;
}
else
{
_status = EStatus.Succeed;
_steps = ESteps.Done;
_lastError = string.Empty;
_lastCode = 0;
}
_tryAgainTimer += Time.unscaledDeltaTime;
if (_tryAgainTimer > 1f)
{
_failedTryAgain--;
_steps = ESteps.PrepareDownload;
ReportWarning();
YooLogger.Warning($"Try again download : {_requestURL}");
}
}
}
public override void Abort()
{
if (_requester != null)
_requester.Abort();
if (_getAssetBundle)
{
_cacheAssetBundle = _downloadhandler.assetBundle;
if (_cacheAssetBundle == null)
{
_lastError = "assetBundle is null";
_steps = ESteps.TryAgain;
}
}
// 最终释放请求
DisposeRequest();
}
// 重新尝试下载
if (_steps == ESteps.TryAgain)
{
if (_failedTryAgain <= 0)
{
DisposeRequest();
ReportError();
_status = EStatus.Failed;
_steps = ESteps.Done;
return;
}
_tryAgainTimer += Time.unscaledDeltaTime;
if (_tryAgainTimer > 1f)
{
_failedTryAgain--;
_steps = ESteps.PrepareDownload;
ReportWarning();
YooLogger.Warning($"Try again download : {_requestURL}");
}
}
}
public override void Abort()
{
if (IsDone() == false)
{
_status = EStatus.Failed;
_steps = ESteps.Done;
_lastError = "user abort";
_lastCode = 0;
DisposeRequest();
}
}
private void DisposeRequest()
{
if (_webRequest != null)
{
_webRequest.Dispose();
_webRequest = null;
}
if (_downloadhandler != null)
{
_downloadhandler.Dispose();
_downloadhandler = null;
}
}
/// <summary>
/// 获取资源包
/// </summary>
public AssetBundle GetAssetBundle()
{
return _cacheAssetBundle;
}
}
if (IsDone() == false)
{
_status = EStatus.Failed;
_steps = ESteps.Done;
_lastestNetError = "user abort";
_lastestHttpCode = 0;
}
}
public override AssetBundle GetAssetBundle()
{
return (AssetBundle)_requester.GetRequestObject();
}
}
}