111 lines
3.3 KiB
C#
111 lines
3.3 KiB
C#
using System;
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using UnityEngine.Networking;
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namespace YooAsset
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{
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/// <summary>
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/// UnityWebRequest 下载后台
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/// </summary>
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/// <remarks>
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/// 基于 Unity 内置 UnityWebRequest 实现的下载后台。
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/// 支持自定义 UnityWebRequest 创建方式，例如添加证书验证、代理设置等。
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/// </remarks>
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internal sealed class UnityWebRequestBackend : IDownloadBackend
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{
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private readonly UnityWebRequestCreator _webRequestCreator;
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/// <summary>
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/// 后端名称
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/// </summary>
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public string Name
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{
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get { return nameof(UnityWebRequestBackend); }
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}
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/// <summary>
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/// 创建 UnityWebRequest 下载后端（使用默认创建方式）
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/// </summary>
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public UnityWebRequestBackend() : this(null)
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{
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}
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/// <summary>
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/// 创建 UnityWebRequest 下载后端
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/// </summary>
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/// <param name="webRequestCreator">
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/// 自定义 UnityWebRequest 创建委托（可选）。
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/// 如果为 null，则使用默认的 UnityWebRequest 构造方式。
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/// </param>
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public UnityWebRequestBackend(UnityWebRequestCreator webRequestCreator)
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{
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_webRequestCreator = webRequestCreator;
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}
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/// <summary>
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/// 驱动更新
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/// </summary>
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/// <remarks>
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/// UnityWebRequest 由 Unity 引擎自动驱动，无需额外更新。
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/// </remarks>
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public void Update()
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{
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}
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/// <summary>
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/// 释放资源
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/// </summary>
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public void Dispose()
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{
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// 无需释放资源
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}
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/// <summary>
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/// 创建 HEAD 请求
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/// </summary>
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public IDownloadHeadRequest CreateHeadRequest(DownloadDataRequestArgs args)
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{
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return new UnityWebRequestHeadDownloader(args, _webRequestCreator);
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}
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/// <summary>
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/// 创建文件下载请求
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/// </summary>
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public IDownloadFileRequest CreateFileRequest(DownloadFileRequestArgs args)
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{
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return new UnityWebRequestFileDownloader(args, _webRequestCreator);
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}
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/// <summary>
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/// 创建字节下载请求
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/// </summary>
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public IDownloadBytesRequest CreateBytesRequest(DownloadDataRequestArgs args)
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{
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return new UnityWebRequestBytesDownloader(args, _webRequestCreator);
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}
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/// <summary>
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/// 创建文本下载请求
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/// </summary>
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public IDownloadTextRequest CreateTextRequest(DownloadDataRequestArgs args)
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{
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return new UnityWebRequestTextDownloader(args, _webRequestCreator);
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}
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/// <summary>
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/// 创建 AssetBundle 下载请求
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/// </summary>
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public IDownloadAssetBundleRequest CreateAssetBundleRequest(DownloadAssetBundleRequestArgs args)
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{
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return new UnityWebRequestAssetBundleDownloader(args, _webRequestCreator);
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}
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/// <summary>
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/// 创建模拟下载请求
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/// </summary>
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public IDownloadFileRequest CreateSimulateRequest(DownloadSimulateRequestArgs args)
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{
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return new VirtualFileDownloader(args);
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}
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}
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}
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