TEngine 6

UnityProject/Packages/YooAsset/Runtime/FileSystem/DefaultWebServerFileSystem/Operation/DWSFSInitializeOperation.cs

@@ -0,0 +1,72 @@
+
+namespace YooAsset
+{
+    internal class DWSFSInitializeOperation : FSInitializeFileSystemOperation
+    {
+        private enum ESteps
+        {
+            None,
+            LoadCatalogFile,
+            Done,
+        }
+
+        private readonly DefaultWebServerFileSystem _fileSystem;
+        private LoadWebServerCatalogFileOperation _loadCatalogFileOp;
+        private ESteps _steps = ESteps.None;
+
+
+        public DWSFSInitializeOperation(DefaultWebServerFileSystem fileSystem)
+        {
+            _fileSystem = fileSystem;
+        }
+        internal override void InternalStart()
+        {
+            _steps = ESteps.LoadCatalogFile;
+        }
+        internal override void InternalUpdate()
+        {
+            if (_steps == ESteps.None || _steps == ESteps.Done)
+                return;
+
+            if (_steps == ESteps.LoadCatalogFile)
+            {
+                if (_loadCatalogFileOp == null)
+                {
+#if UNITY_EDITOR
+                    // 兼容性初始化
+                    // 说明：内置文件系统在编辑器下运行时需要动态生成
+                    string packageRoot = _fileSystem.FileRoot;
+                    bool result = DefaultBuildinFileSystemBuild.CreateBuildinCatalogFile(_fileSystem.PackageName, packageRoot);
+                    if (result == false)
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = $"Create package catalog file failed ! See the detail error in console !";
+                        return;
+                    }
+#endif
+
+                    _loadCatalogFileOp = new LoadWebServerCatalogFileOperation(_fileSystem);
+                    _loadCatalogFileOp.StartOperation();
+                    AddChildOperation(_loadCatalogFileOp);
+                }
+
+                _loadCatalogFileOp.UpdateOperation();
+                if (_loadCatalogFileOp.IsDone == false)
+                    return;
+
+                if (_loadCatalogFileOp.Status == EOperationStatus.Succeed)
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Succeed;
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = _loadCatalogFileOp.Error;
+                }
+            }
+        }
+    }
+}

UnityProject/Packages/YooAsset/Runtime/FileSystem/DefaultWebServerFileSystem/Operation/DWSFSInitializeOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 4c7cf2dca805b0b4d91cb5e0782dcb0c
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

UnityProject/Packages/YooAsset/Runtime/FileSystem/DefaultWebServerFileSystem/Operation/DWSFSLoadBundleOperation.cs

@@ -0,0 +1,98 @@
+
+namespace YooAsset
+{
+    internal class DWSFSLoadAssetBundleOperation : FSLoadBundleOperation
+    {
+        private enum ESteps
+        {
+            None,
+            DownloadAssetBundle,
+            Done,
+        }
+
+        private readonly DefaultWebServerFileSystem _fileSystem;
+        private readonly PackageBundle _bundle;
+        private DownloadAssetBundleOperation _downloadAssetBundleOp;
+        private ESteps _steps = ESteps.None;
+
+
+        internal DWSFSLoadAssetBundleOperation(DefaultWebServerFileSystem fileSystem, PackageBundle bundle)
+        {
+            _fileSystem = fileSystem;
+            _bundle = bundle;
+        }
+        internal override void InternalStart()
+        {
+            _steps = ESteps.DownloadAssetBundle;
+        }
+        internal override void InternalUpdate()
+        {
+            if (_steps == ESteps.None || _steps == ESteps.Done)
+                return;
+
+            if (_steps == ESteps.DownloadAssetBundle)
+            {
+                if (_downloadAssetBundleOp == null)
+                {
+                    DownloadParam downloadParam = new DownloadParam(int.MaxValue, 60);
+                    string fileLoadPath = _fileSystem.GetWebFileLoadPath(_bundle);
+                    downloadParam.MainURL = DownloadSystemHelper.ConvertToWWWPath(fileLoadPath);
+                    downloadParam.FallbackURL = downloadParam.MainURL;
+
+                    if (_bundle.Encrypted)
+                    {
+                        _downloadAssetBundleOp = new DownloadWebEncryptAssetBundleOperation(true, _fileSystem.DecryptionServices, _bundle, downloadParam);
+                        _downloadAssetBundleOp.StartOperation();
+                        AddChildOperation(_downloadAssetBundleOp);
+                    }
+                    else
+                    {
+                        _downloadAssetBundleOp = new DownloadWebNormalAssetBundleOperation(_fileSystem.DisableUnityWebCache, _bundle, downloadParam);
+                        _downloadAssetBundleOp.StartOperation();
+                        AddChildOperation(_downloadAssetBundleOp);
+                    }
+                }
+
+                _downloadAssetBundleOp.UpdateOperation();
+                DownloadProgress = _downloadAssetBundleOp.DownloadProgress;
+                DownloadedBytes = _downloadAssetBundleOp.DownloadedBytes;
+                Progress = _downloadAssetBundleOp.Progress;
+                if (_downloadAssetBundleOp.IsDone == false)
+                    return;
+
+                if (_downloadAssetBundleOp.Status == EOperationStatus.Succeed)
+                {
+                    var assetBundle = _downloadAssetBundleOp.Result;
+                    if (assetBundle == null)
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = $"{nameof(DownloadAssetBundleOperation)} loaded asset bundle is null !";
+                    }
+                    else
+                    {
+                        _steps = ESteps.Done;
+                        Result = new AssetBundleResult(_fileSystem, _bundle, assetBundle, null);
+                        Status = EOperationStatus.Succeed;
+                    }
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = _downloadAssetBundleOp.Error;
+                }
+            }
+        }
+        internal override void InternalWaitForAsyncComplete()
+        {
+            if (_steps != ESteps.Done)
+            {
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Failed;
+                Error = "WebGL platform not support sync load method !";
+                UnityEngine.Debug.LogError(Error);
+            }
+        }
+    }
+}

UnityProject/Packages/YooAsset/Runtime/FileSystem/DefaultWebServerFileSystem/Operation/DWSFSLoadBundleOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: a50dacdf7a3ad7c40a4195126425bbec
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

UnityProject/Packages/YooAsset/Runtime/FileSystem/DefaultWebServerFileSystem/Operation/DWSFSLoadPackageManifestOperation.cs

@@ -0,0 +1,92 @@
+
+namespace YooAsset
+{
+    internal class DWSFSLoadPackageManifestOperation : FSLoadPackageManifestOperation
+    {
+        private enum ESteps
+        {
+            None,
+            RequestWebPackageHash,
+            LoadWebPackageManifest,
+            Done,
+        }
+
+        private readonly DefaultWebServerFileSystem _fileSystem;
+        private readonly string _packageVersion;
+        private readonly int _timeout;
+        private RequestWebServerPackageHashOperation _requestWebPackageHashOp;
+        private LoadWebServerPackageManifestOperation _loadWebPackageManifestOp;
+        private ESteps _steps = ESteps.None;
+
+
+        public DWSFSLoadPackageManifestOperation(DefaultWebServerFileSystem fileSystem, string packageVersion, int timeout)
+        {
+            _fileSystem = fileSystem;
+            _packageVersion = packageVersion;
+            _timeout = timeout;
+        }
+        internal override void InternalStart()
+        {
+            _steps = ESteps.RequestWebPackageHash;
+        }
+        internal override void InternalUpdate()
+        {
+            if (_steps == ESteps.None || _steps == ESteps.Done)
+                return;
+
+            if (_steps == ESteps.RequestWebPackageHash)
+            {
+                if (_requestWebPackageHashOp == null)
+                {
+                    _requestWebPackageHashOp = new RequestWebServerPackageHashOperation(_fileSystem, _packageVersion, _timeout);
+                    _requestWebPackageHashOp.StartOperation();
+                    AddChildOperation(_requestWebPackageHashOp);
+                }
+
+                _requestWebPackageHashOp.UpdateOperation();
+                if (_requestWebPackageHashOp.IsDone == false)
+                    return;
+
+                if (_requestWebPackageHashOp.Status == EOperationStatus.Succeed)
+                {
+                    _steps = ESteps.LoadWebPackageManifest;
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = _requestWebPackageHashOp.Error;
+                }
+            }
+
+            if (_steps == ESteps.LoadWebPackageManifest)
+            {
+                if (_loadWebPackageManifestOp == null)
+                {
+                    string packageHash = _requestWebPackageHashOp.PackageHash;
+                    _loadWebPackageManifestOp = new LoadWebServerPackageManifestOperation(_fileSystem, _packageVersion, packageHash);
+                    _loadWebPackageManifestOp.StartOperation();
+                    AddChildOperation(_loadWebPackageManifestOp);
+                }
+
+                _loadWebPackageManifestOp.UpdateOperation();
+                Progress = _loadWebPackageManifestOp.Progress;
+                if (_loadWebPackageManifestOp.IsDone == false)
+                    return;
+
+                if (_loadWebPackageManifestOp.Status == EOperationStatus.Succeed)
+                {
+                    _steps = ESteps.Done;
+                    Manifest = _loadWebPackageManifestOp.Manifest;
+                    Status = EOperationStatus.Succeed;
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = _loadWebPackageManifestOp.Error;
+                }
+            }
+        }
+    }
+}

UnityProject/Packages/YooAsset/Runtime/FileSystem/DefaultWebServerFileSystem/Operation/DWSFSLoadPackageManifestOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 0d0f8063cfabb5d40b364f162ce49fc0
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

UnityProject/Packages/YooAsset/Runtime/FileSystem/DefaultWebServerFileSystem/Operation/DWSFSRequestPackageVersionOperation.cs

@@ -0,0 +1,62 @@
+
+namespace YooAsset
+{
+    internal class DWSFSRequestPackageVersionOperation : FSRequestPackageVersionOperation
+    {
+        private enum ESteps
+        {
+            None,
+            RequestPackageVersion,
+            Done,
+        }
+
+        private readonly DefaultWebServerFileSystem _fileSystem;
+        private readonly int _timeout;
+        private RequestWebServerPackageVersionOperation _requestWebPackageVersionOp;
+        private ESteps _steps = ESteps.None;
+
+
+        internal DWSFSRequestPackageVersionOperation(DefaultWebServerFileSystem fileSystem, int timeout)
+        {
+            _fileSystem = fileSystem;
+            _timeout = timeout;
+        }
+        internal override void InternalStart()
+        {
+            _steps = ESteps.RequestPackageVersion;
+        }
+        internal override void InternalUpdate()
+        {
+            if (_steps == ESteps.None || _steps == ESteps.Done)
+                return;
+
+            if (_steps == ESteps.RequestPackageVersion)
+            {
+                if (_requestWebPackageVersionOp == null)
+                {
+                    _requestWebPackageVersionOp = new RequestWebServerPackageVersionOperation(_fileSystem, _timeout);
+                    _requestWebPackageVersionOp.StartOperation();
+                    AddChildOperation(_requestWebPackageVersionOp);
+                }
+
+                _requestWebPackageVersionOp.UpdateOperation();
+                Progress = _requestWebPackageVersionOp.Progress;
+                if (_requestWebPackageVersionOp.IsDone == false)
+                    return;
+
+                if (_requestWebPackageVersionOp.Status == EOperationStatus.Succeed)
+                {
+                    _steps = ESteps.Done;
+                    PackageVersion = _requestWebPackageVersionOp.PackageVersion;
+                    Status = EOperationStatus.Succeed;
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = _requestWebPackageVersionOp.Error;
+                }
+            }
+        }
+    }
+}

UnityProject/Packages/YooAsset/Runtime/FileSystem/DefaultWebServerFileSystem/Operation/DWSFSRequestPackageVersionOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 212a79e362fe6234c81fa79c3924dd20
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

UnityProject/Packages/YooAsset/Runtime/FileSystem/DefaultWebServerFileSystem/Operation/internal.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 0e91f62e8fc7c1f4592681b7881ad925
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

UnityProject/Packages/YooAsset/Runtime/FileSystem/DefaultWebServerFileSystem/Operation/internal/LoadWebServerCatalogFileOperation.cs

@@ -0,0 +1,72 @@
+using System;
+using System.IO;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace YooAsset
+{
+    internal sealed class LoadWebServerCatalogFileOperation : AsyncOperationBase
+    {
+        private enum ESteps
+        {
+            None,
+            LoadCatalog,
+            Done,
+        }
+
+        private readonly DefaultWebServerFileSystem _fileSystem;
+        private ESteps _steps = ESteps.None;
+
+        /// <summary>
+        /// 内置清单版本
+        /// </summary>
+        public string PackageVersion { private set; get; }
+
+        internal LoadWebServerCatalogFileOperation(DefaultWebServerFileSystem fileSystem)
+        {
+            _fileSystem = fileSystem;
+        }
+        internal override void InternalStart()
+        {
+            _steps = ESteps.LoadCatalog;
+        }
+        internal override void InternalUpdate()
+        {
+            if (_steps == ESteps.None || _steps == ESteps.Done)
+                return;
+
+            if (_steps == ESteps.LoadCatalog)
+            {
+                string catalogFilePath = _fileSystem.GetCatalogFileLoadPath();
+                var catalog = Resources.Load<DefaultBuildinFileCatalog>(catalogFilePath);
+                if (catalog == null)
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = $"Failed to load web server catalog file : {catalogFilePath}";
+                    return;
+                }
+
+                if (catalog.PackageName != _fileSystem.PackageName)
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = $"Web server catalog file package name {catalog.PackageName} cannot match the file system package name {_fileSystem.PackageName}";
+                    return;
+                }
+
+                PackageVersion = catalog.PackageVersion;
+                foreach (var wrapper in catalog.Wrappers)
+                {
+                    var fileWrapper = new DefaultWebServerFileSystem.FileWrapper(wrapper.FileName);
+                    _fileSystem.RecordCatalogFile(wrapper.BundleGUID, fileWrapper);
+                }
+
+                YooLogger.Log($"Package '{_fileSystem.PackageName}' catalog files count : {catalog.Wrappers.Count}");
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Succeed;
+            }
+        }
+    }
+}

UnityProject/Packages/YooAsset/Runtime/FileSystem/DefaultWebServerFileSystem/Operation/internal/LoadWebServerCatalogFileOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 4c34c01e10454c842819e066eef488cf
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

UnityProject/Packages/YooAsset/Runtime/FileSystem/DefaultWebServerFileSystem/Operation/internal/LoadWebServerPackageManifestOperation.cs

@@ -0,0 +1,118 @@
+
+namespace YooAsset
+{
+    internal class LoadWebServerPackageManifestOperation : AsyncOperationBase
+    {
+        private enum ESteps
+        {
+            None,
+            RequestFileData,
+            VerifyFileData,
+            LoadManifest,
+            Done,
+        }
+
+        private readonly DefaultWebServerFileSystem _fileSystem;
+        private readonly string _packageVersion;
+        private readonly string _packageHash;
+        private UnityWebDataRequestOperation _webDataRequestOp;
+        private DeserializeManifestOperation _deserializer;
+        private ESteps _steps = ESteps.None;
+
+        /// <summary>
+        /// 包裹清单
+        /// </summary>
+        public PackageManifest Manifest { private set; get; }
+
+
+        internal LoadWebServerPackageManifestOperation(DefaultWebServerFileSystem fileSystem, string packageVersion, string packageHash)
+        {
+            _fileSystem = fileSystem;
+            _packageVersion = packageVersion;
+            _packageHash = packageHash;
+        }
+        internal override void InternalStart()
+        {
+            _steps = ESteps.RequestFileData;
+        }
+        internal override void InternalUpdate()
+        {
+            if (_steps == ESteps.None || _steps == ESteps.Done)
+                return;
+
+            if (_steps == ESteps.RequestFileData)
+            {
+                if (_webDataRequestOp == null)
+                {
+                    string filePath = _fileSystem.GetWebPackageManifestFilePath(_packageVersion);
+                    string url = DownloadSystemHelper.ConvertToWWWPath(filePath);
+                    _webDataRequestOp = new UnityWebDataRequestOperation(url);
+                    _webDataRequestOp.StartOperation();
+                    AddChildOperation(_webDataRequestOp);
+                }
+
+                _webDataRequestOp.UpdateOperation();
+                if (_webDataRequestOp.IsDone == false)
+                    return;
+
+                if (_webDataRequestOp.Status == EOperationStatus.Succeed)
+                {
+                    _steps = ESteps.VerifyFileData;
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = _webDataRequestOp.Error;
+                }
+            }
+
+            if (_steps == ESteps.VerifyFileData)
+            {
+                string fileHash = HashUtility.BytesCRC32(_webDataRequestOp.Result);
+                if (fileHash == _packageHash)
+                {
+                    _steps = ESteps.LoadManifest;
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = "Failed to verify web server package manifest file!";
+                }
+            }
+
+            if (_steps == ESteps.LoadManifest)
+            {
+                if (_deserializer == null)
+                {
+                    _deserializer = new DeserializeManifestOperation(_webDataRequestOp.Result);
+                    _deserializer.StartOperation();
+                    AddChildOperation(_deserializer);
+                }
+
+                _deserializer.UpdateOperation();
+                Progress = _deserializer.Progress;
+                if (_deserializer.IsDone == false)
+                    return;
+
+                if (_deserializer.Status == EOperationStatus.Succeed)
+                {
+                    _steps = ESteps.Done;
+                    Manifest = _deserializer.Manifest;
+                    Status = EOperationStatus.Succeed;
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = _deserializer.Error;
+                }
+            }
+        }
+        internal override string InternalGetDesc()
+        {
+            return $"PackageVersion : {_packageVersion} PackageHash : {_packageHash}";
+        }
+    }
+}

UnityProject/Packages/YooAsset/Runtime/FileSystem/DefaultWebServerFileSystem/Operation/internal/LoadWebServerPackageManifestOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 04a60c61990d93b4cb934ab1901a44f5
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

UnityProject/Packages/YooAsset/Runtime/FileSystem/DefaultWebServerFileSystem/Operation/internal/RequestWebServerPackageHashOperation.cs

@@ -0,0 +1,80 @@
+
+namespace YooAsset
+{
+    internal class RequestWebServerPackageHashOperation : AsyncOperationBase
+    {
+        private enum ESteps
+        {
+            None,
+            RequestPackageHash,
+            Done,
+        }
+
+        private readonly DefaultWebServerFileSystem _fileSystem;
+        private readonly string _packageVersion;
+        private readonly int _timeout;
+        private UnityWebTextRequestOperation _webTextRequestOp;
+        private ESteps _steps = ESteps.None;
+
+        /// <summary>
+        /// 包裹哈希值
+        /// </summary>
+        public string PackageHash { private set; get; }
+
+
+        public RequestWebServerPackageHashOperation(DefaultWebServerFileSystem fileSystem, string packageVersion, int timeout)
+        {
+            _fileSystem = fileSystem;
+            _packageVersion = packageVersion;
+            _timeout = timeout;
+        }
+        internal override void InternalStart()
+        {
+            _steps = ESteps.RequestPackageHash;
+        }
+        internal override void InternalUpdate()
+        {
+            if (_steps == ESteps.None || _steps == ESteps.Done)
+                return;
+
+            if (_steps == ESteps.RequestPackageHash)
+            {
+                if (_webTextRequestOp == null)
+                {
+                    string filePath = _fileSystem.GetWebPackageHashFilePath(_packageVersion);
+                    string url = DownloadSystemHelper.ConvertToWWWPath(filePath);
+                    _webTextRequestOp = new UnityWebTextRequestOperation(url, _timeout);
+                    _webTextRequestOp.StartOperation();
+                    AddChildOperation(_webTextRequestOp);
+                }
+
+                _webTextRequestOp.UpdateOperation();
+                Progress = _webTextRequestOp.Progress;
+                if (_webTextRequestOp.IsDone == false)
+                    return;
+
+                if (_webTextRequestOp.Status == EOperationStatus.Succeed)
+                {
+                    PackageHash = _webTextRequestOp.Result;
+                    if (string.IsNullOrEmpty(PackageHash))
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = $"Web server package hash file content is empty !";
+                    }
+                    else
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Succeed;
+                    }
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = _webTextRequestOp.Error;
+                }
+            }
+        }
+    }
+}

UnityProject/Packages/YooAsset/Runtime/FileSystem/DefaultWebServerFileSystem/Operation/internal/RequestWebServerPackageHashOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: ead93dc6c4d5ed942b209ec2202087dc
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

UnityProject/Packages/YooAsset/Runtime/FileSystem/DefaultWebServerFileSystem/Operation/internal/RequestWebServerPackageVersionOperation.cs

@@ -0,0 +1,77 @@
+
+namespace YooAsset
+{
+    internal class RequestWebServerPackageVersionOperation : AsyncOperationBase
+    {
+        private enum ESteps
+        {
+            None,
+            RequestPackageVersion,
+            Done,
+        }
+
+        private readonly DefaultWebServerFileSystem _fileSystem;
+        private readonly int _timeout;
+        private UnityWebTextRequestOperation _webTextRequestOp;
+        private ESteps _steps = ESteps.None;
+
+        /// <summary>
+        /// 包裹版本
+        /// </summary>
+        public string PackageVersion { private set; get; }
+
+
+        internal RequestWebServerPackageVersionOperation(DefaultWebServerFileSystem fileSystem, int timeout)
+        {
+            _fileSystem = fileSystem;
+            _timeout = timeout;
+        }
+        internal override void InternalStart()
+        {
+            _steps = ESteps.RequestPackageVersion;
+        }
+        internal override void InternalUpdate()
+        {
+            if (_steps == ESteps.None || _steps == ESteps.Done)
+                return;
+
+            if (_steps == ESteps.RequestPackageVersion)
+            {
+                if (_webTextRequestOp == null)
+                {
+                    string filePath = _fileSystem.GetWebPackageVersionFilePath();
+                    string url = DownloadSystemHelper.ConvertToWWWPath(filePath);
+                    _webTextRequestOp = new UnityWebTextRequestOperation(url, _timeout);
+                    _webTextRequestOp.StartOperation();
+                    AddChildOperation(_webTextRequestOp);
+                }
+
+                _webTextRequestOp.UpdateOperation();
+                if (_webTextRequestOp.IsDone == false)
+                    return;
+
+                if (_webTextRequestOp.Status == EOperationStatus.Succeed)
+                {
+                    PackageVersion = _webTextRequestOp.Result;
+                    if (string.IsNullOrEmpty(PackageVersion))
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = $"Web server package version file content is empty !";
+                    }
+                    else
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Succeed;
+                    }
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = _webTextRequestOp.Error;
+                }
+            }
+        }
+    }
+}

UnityProject/Packages/YooAsset/Runtime/FileSystem/DefaultWebServerFileSystem/Operation/internal/RequestWebServerPackageVersionOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: bfa0e562b63f31141bbf04d4d5336d87
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: