67 lines
2.4 KiB
C#
67 lines
2.4 KiB
C#
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using Microsoft.AspNetCore.Http;
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using Microsoft.Extensions.Options;
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using Newtonsoft.Json;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Text;
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using System.Threading.Tasks;
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using Ufangx.FileServices.Abstractions;
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using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.Localization;
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namespace Ufangx.FileServices.Middlewares
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{
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public class ResumableInfoUploaderMiddleware : UploaderMiddleware
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{
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private IResumableInfoService service;
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public IResumableInfoService Service => service ?? (service = Context.RequestServices.GetRequiredService<IResumableInfoService>());
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public ResumableInfoUploaderMiddleware(RequestDelegate next,
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IFileServiceProvider serviceProvider) : base(next, serviceProvider)
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{
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}
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protected override async Task Handler(HttpContext context) {
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string key = GetRequestParams("key");
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IResumableInfo info = null;
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if (string.IsNullOrWhiteSpace(key))
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{
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if (long.TryParse(GetRequestParams("fileSize"), out long fileSize)
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&& int.TryParse(GetRequestParams("blobSize"), out int blobSize)
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&& long.TryParse(GetRequestParams("blobCount"), out long blobCount))
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{
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string fileName = GetRequestParams("fileName");
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if (string.IsNullOrWhiteSpace(fileName)) {
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await Error(StringLocalizer["参数文件名称（fileName）是必须的"]);
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return;
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}
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if (await ValidateResultHandler(Validate(fileName, fileSize))) {
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return;
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}
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info = await Service.Create(await GetStoreFileName(fileName),
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fileName,
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fileSize,
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GetRequestParams("fileType"),
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blobCount,
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blobSize);
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}
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}
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else
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{
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info = await Service.Get(key);
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}
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await WriteJsonAsync(info == null ? null : new
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{
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key = info.Key,
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index = info.BlobIndex,
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});
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}
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protected override string GetRequestParams(string key)
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{
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return Context.Request.Query[key];
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}
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}
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}
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