113 lines
3.2 KiB
C#
113 lines
3.2 KiB
C#
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namespace YooAsset
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{
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internal class DownloadManifestOperation : AsyncOperationBase
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{
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private enum ESteps
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{
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None,
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DownloadPackageHashFile,
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DownloadManifestFile,
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Done,
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}
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private readonly IRemoteServices _remoteServices;
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private readonly string _packageName;
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private readonly string _packageVersion;
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private readonly int _timeout;
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private UnityWebFileRequester _downloader1;
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private UnityWebFileRequester _downloader2;
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private ESteps _steps = ESteps.None;
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private int _requestCount = 0;
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internal DownloadManifestOperation(IRemoteServices remoteServices, string packageName, string packageVersion, int timeout)
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{
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_remoteServices = remoteServices;
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_packageName = packageName;
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_packageVersion = packageVersion;
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_timeout = timeout;
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}
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internal override void Start()
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{
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_requestCount = RequestHelper.GetRequestFailedCount(_packageName, nameof(DownloadManifestOperation));
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_steps = ESteps.DownloadPackageHashFile;
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}
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internal override void Update()
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{
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if (_steps == ESteps.None || _steps == ESteps.Done)
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return;
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if (_steps == ESteps.DownloadPackageHashFile)
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{
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if (_downloader1 == null)
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{
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string savePath = PersistentTools.GetPersistent(_packageName).GetSandboxPackageHashFilePath(_packageVersion);
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string fileName = YooAssetSettingsData.GetPackageHashFileName(_packageName, _packageVersion);
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string webURL = GetDownloadRequestURL(fileName);
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YooLogger.Log($"Beginning to download package hash file : {webURL}");
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_downloader1 = new UnityWebFileRequester();
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_downloader1.SendRequest(webURL, savePath, _timeout);
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}
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_downloader1.CheckTimeout();
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if (_downloader1.IsDone() == false)
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return;
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if (_downloader1.HasError())
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{
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_steps = ESteps.Done;
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Status = EOperationStatus.Failed;
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Error = _downloader1.GetError();
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RequestHelper.RecordRequestFailed(_packageName, nameof(DownloadManifestOperation));
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}
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else
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{
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_steps = ESteps.DownloadManifestFile;
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}
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_downloader1.Dispose();
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}
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if (_steps == ESteps.DownloadManifestFile)
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{
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if (_downloader2 == null)
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{
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string savePath = PersistentTools.GetPersistent(_packageName).GetSandboxPackageManifestFilePath(_packageVersion);
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string fileName = YooAssetSettingsData.GetManifestBinaryFileName(_packageName, _packageVersion);
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string webURL = GetDownloadRequestURL(fileName);
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YooLogger.Log($"Beginning to download package manifest file : {webURL}");
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_downloader2 = new UnityWebFileRequester();
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_downloader2.SendRequest(webURL, savePath, _timeout);
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}
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_downloader2.CheckTimeout();
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if (_downloader2.IsDone() == false)
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return;
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if (_downloader2.HasError())
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{
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_steps = ESteps.Done;
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Status = EOperationStatus.Failed;
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Error = _downloader2.GetError();
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RequestHelper.RecordRequestFailed(_packageName, nameof(DownloadManifestOperation));
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}
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else
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{
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_steps = ESteps.Done;
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Status = EOperationStatus.Succeed;
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}
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_downloader2.Dispose();
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}
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}
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private string GetDownloadRequestURL(string fileName)
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{
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// 轮流返回请求地址
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if (_requestCount % 2 == 0)
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return _remoteServices.GetRemoteMainURL(fileName);
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else
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return _remoteServices.GetRemoteFallbackURL(fileName);
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}
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}
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} |