商城模块
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陈淳
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using Microsoft.AspNetCore.Authorization;
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using Microsoft.AspNetCore.Http;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.Extensions.Hosting;
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using SqlSugar;
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.IO;
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using System.Linq;
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using System.Threading.Tasks;
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using Yi.Framework.Common.Const;
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using Yi.Framework.Common.Enum;
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using Yi.Framework.Common.Helper;
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using Yi.Framework.Common.Models;
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using Yi.Framework.Core;
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using Yi.Framework.Interface;
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using Yi.Framework.Model.Models;
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using Yi.Framework.WebCore;
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namespace Yi.Framework.ApiMicroservice.Controllers
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{
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/// <summary>
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/// 文件
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/// </summary>
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[Route("api/[controller]/[action]")]
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[ApiController]
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public class FileController : ControllerBase
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{
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private IFileService _iFileService;
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private readonly IHostEnvironment _env;
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private ThumbnailSharpInvoer _thumbnailSharpInvoer;
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/// <summary>
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/// 文件上传下载
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/// </summary>
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/// <param name="iFileService"></param>
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/// <param name="env"></param>
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/// <param name="thumbnailSharpInvoer"></param>
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public FileController(IFileService iFileService, IHostEnvironment env, ThumbnailSharpInvoer thumbnailSharpInvoer)
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{
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_iFileService = iFileService;
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_env = env;
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_thumbnailSharpInvoer = thumbnailSharpInvoer;
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}
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/// <summary>
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/// 文件下载,只需用文件code即可,可选择是否为缩略图
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/// </summary>
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/// <param name="code"></param>
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/// <param name="isThumbnail"></param>
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/// <returns></returns>
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[Route("/api/file/{code}/{isThumbnail?}")]
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[HttpGet]
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public async Task<IActionResult> Get(long code, bool? isThumbnail)
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{
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var file = await _iFileService._repository.GetByIdAsync(code);
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if (file is null)
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{
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return new NotFoundResult();
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}
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try
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{
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//如果为缩略图
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if (isThumbnail is true)
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{
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file.FilePath = PathEnum.Thumbnail.ToString();
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}
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//路径为： 文件路径/文件id+文件扩展名
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var path = Path.Combine($"{PathConst.wwwroot}/{file.FilePath}", file.Id.ToString() + Path.GetExtension(file.FileName));
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var stream = System.IO.File.OpenRead(path);
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var MimeType = Common.Helper.MimeHelper.GetMimeMapping(file.FileName);
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return File(stream, MimeType, file.FileName);
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}
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catch
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{
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return new NotFoundResult();
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}
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}
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/// <summary>
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/// 多文件上传,type可空，默认上传至File文件夹下，swagger返回雪花id精度是有问题的，同时如果时图片类型，还需要进行缩略图制作
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/// </summary>
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/// <param name="type">文件类型，可空</param>
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/// <param name="file">多文件表单</param>
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/// <param name="remark">描述</param>
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/// <returns></returns>
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[Route("/api/file/Upload/{type?}")]
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[HttpPost]
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public async Task<Result> Upload([FromRoute] string? type, [FromForm] IFormFileCollection file, [FromQuery] string? remark)
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{
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type = type ?? PathEnum.File.ToString();
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type = CultureInfo.CurrentCulture.TextInfo.ToTitleCase(type.ToLower());
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if (!Enum.IsDefined(typeof(PathEnum), type))
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{
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//后续类型可从字典表中获取
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return Result.Error("上传失败！文件类型不支持！");
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}
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if (file.Count() == 0)
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{
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return Result.Error("未选择文件");
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}
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//批量插入
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List<FileEntity> datas = new();
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//返回的codes
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List<long> codes = new();
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try
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{
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foreach (var f in file)
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{
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FileEntity data = new();
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data.Id = SnowFlakeSingle.Instance.NextId();
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data.FileSize = ((decimal)f.Length) / 1024;
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data.FileName = f.FileName;
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data.FileType = Common.Helper.MimeHelper.GetMimeMapping(f.FileName);
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data.FilePath = type;
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data.Remark = remark;
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data.IsDeleted = false;
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//落盘文件，文件名为雪花id+自己的扩展名
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string filename = data.Id.ToString() + Path.GetExtension(f.FileName);
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string typePath = $"{PathConst.wwwroot}/{type}";
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if (!Directory.Exists(typePath))
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{
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Directory.CreateDirectory(typePath);
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}
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//生成文件
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using (var stream = new FileStream(Path.Combine(typePath, filename), FileMode.CreateNew, FileAccess.ReadWrite))
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{
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await f.CopyToAsync(stream);
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//如果是图片类型，还需要生成缩略图
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if (PathEnum.Image.ToString().Equals(type))
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{
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//保存至缩略图路径
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var result = _thumbnailSharpInvoer.CreateThumbnailBytes(thumbnailSize: 300,
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imageStream: stream,
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imageFormat: Format.Jpeg);
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string thumbnailPath = $"{PathConst.wwwroot}/{PathEnum.Thumbnail}";
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if (!Directory.Exists(thumbnailPath))
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{
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Directory.CreateDirectory(thumbnailPath);
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}
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await System.IO.File.WriteAllBytesAsync(Path.Combine(thumbnailPath, filename), result);
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}
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};
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//将文件信息添加到数据库
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datas.Add(data);
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codes.Add(data.Id);
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}
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return Result.Success().SetData(codes).SetStatus(await _iFileService._repository.InsertRangeAsync(datas));
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}
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catch
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{
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return Result.Error();
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}
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}
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/// <summary>
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/// 一键同步图片到缩略图
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/// </summary>
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/// <returns></returns>
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[HttpGet]
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public async Task<Result> ThumbnailSync()
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{
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string typePath = $"{PathConst.wwwroot}/{PathEnum.Image}";
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string thumbnailPath = $"{PathConst.wwwroot}/{PathEnum.Thumbnail}";
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List<string> fileNames =FileHelper. GetAllFileNames(typePath);
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foreach (var filename in fileNames)
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{
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if (System.IO.File.Exists(Path.Combine(thumbnailPath, filename)))
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{
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//如果缩略图存在，直接跳过
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continue;
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}
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if (!Directory.Exists(typePath))
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{
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Directory.CreateDirectory(typePath);
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}
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using (var stream = new FileStream(Path.Combine(typePath, filename), FileMode.Open, FileAccess.ReadWrite))
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{
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//保存至缩略图路径
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var result = _thumbnailSharpInvoer.CreateThumbnailBytes(thumbnailSize: 300,
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imageStream: stream,
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imageFormat: Format.Jpeg);
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if (!Directory.Exists(thumbnailPath))
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{
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Directory.CreateDirectory(thumbnailPath);
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}
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await System.IO.File.WriteAllBytesAsync(Path.Combine(thumbnailPath, filename), result);
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};
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}
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return Result.Success();
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}
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}
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}
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