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// Admin.NET 项目的版权、商标、专利和其他相关权利均受相应法律法规的保护。使用本项目应遵守相关法律法规和许可证的要求。
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//
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// 本项目主要遵循 MIT 许可证和 Apache 许可证（版本 2.0）进行分发和使用。许可证位于源代码树根目录中的 LICENSE-MIT 和 LICENSE-APACHE 文件。
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//
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// 不得利用本项目从事危害国家安全、扰乱社会秩序、侵犯他人合法权益等法律法规禁止的活动！任何基于本项目二次开发而产生的一切法律纠纷和责任，我们不承担任何责任！
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using Aliyun.OSS.Util;
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using Furion.AspNetCore;
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using Microsoft.AspNetCore.Mvc.ModelBinding;
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namespace Admin.NET.Core.Service;
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/// <summary>
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/// 系统文件服务 🧩
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/// </summary>
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[ApiDescriptionSettings(Order = 410, Description = "系统文件")]
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public class SysFileService : IDynamicApiController, ITransient
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{
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private readonly UserManager _userManager;
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private readonly SqlSugarRepository<SysFile> _sysFileRep;
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private readonly OSSProviderOptions _OSSProviderOptions;
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private readonly UploadOptions _uploadOptions;
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private readonly IConfiguration _configuration;
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private readonly string _imageType = ".jpeg.jpg.png.bmp.gif.tif";
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private readonly INamedServiceProvider<ICustomFileProvider> _namedServiceProvider;
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private readonly ICustomFileProvider _customFileProvider;
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public SysFileService(UserManager userManager,
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SqlSugarRepository<SysFile> sysFileRep,
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IOptions<OSSProviderOptions> oSSProviderOptions,
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IOptions<UploadOptions> uploadOptions,
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INamedServiceProvider<ICustomFileProvider> namedServiceProvider,
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IConfiguration configuration)
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{
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_namedServiceProvider = namedServiceProvider;
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_userManager = userManager;
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_sysFileRep = sysFileRep;
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_OSSProviderOptions = oSSProviderOptions.Value;
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_uploadOptions = uploadOptions.Value;
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_configuration = configuration;
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// 简化提供者选择逻辑
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if (_OSSProviderOptions.Enabled || _configuration["MultiOSS:Enabled"].ToBoolean())
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{
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// 统一使用MultiOSSFileProvider处理所有OSS情况
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_customFileProvider = _namedServiceProvider.GetService<ITransient>(nameof(MultiOSSFileProvider));
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}
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else if (_configuration["SSHProvider:Enabled"].ToBoolean())
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{
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_customFileProvider = _namedServiceProvider.GetService<ITransient>(nameof(SSHFileProvider));
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}
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else
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{
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_customFileProvider = _namedServiceProvider.GetService<ITransient>(nameof(DefaultFileProvider));
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}
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}
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/// <summary>
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/// 获取文件分页列表 🔖
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/// </summary>
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/// <param name="input"></param>
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/// <returns></returns>
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[DisplayName("获取文件分页列表")]
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public async Task<SqlSugarPagedList<SysFile>> Page(PageFileInput input)
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{
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// 获取所有公开附件
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var publicList = _sysFileRep.AsQueryable().ClearFilter().Where(u => u.IsPublic == true);
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// 获取私有附件
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var privateList = _sysFileRep.AsQueryable().Where(u => u.IsPublic == false);
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// 合并公开和私有附件并分页
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return await _sysFileRep.Context.UnionAll(publicList, privateList)
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.WhereIF(!string.IsNullOrWhiteSpace(input.FileName), u => u.FileName.Contains(input.FileName.Trim()))
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.WhereIF(!string.IsNullOrWhiteSpace(input.FilePath), u => u.FilePath.Contains(input.FilePath.Trim()))
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.WhereIF(!string.IsNullOrWhiteSpace(input.StartTime.ToString()) && !string.IsNullOrWhiteSpace(input.EndTime.ToString()),
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u => u.CreateTime >= input.StartTime && u.CreateTime <= input.EndTime)
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.OrderBy(u => u.CreateTime, OrderByType.Desc)
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.ToPagedListAsync(input.Page, input.PageSize);
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}
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/// <summary>
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/// 上传文件Base64 🔖
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/// </summary>
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/// <param name="input"></param>
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/// <returns></returns>
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[DisplayName("上传文件Base64")]
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public async Task<SysFile> UploadFileFromBase64(UploadFileFromBase64Input input)
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{
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var pattern = @"data:(?<type>.+?);base64,(?<data>[^""]+)";
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var regex = new Regex(pattern, RegexOptions.Compiled);
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var match = regex.Match(input.FileDataBase64);
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byte[] fileData = Convert.FromBase64String(match.Groups["data"].Value);
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var contentType = match.Groups["type"].Value;
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if (string.IsNullOrEmpty(input.FileName))
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input.FileName = $"{YitIdHelper.NextId()}.{contentType.AsSpan(contentType.LastIndexOf('/') + 1)}";
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using var ms = new MemoryStream();
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ms.Write(fileData);
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ms.Seek(0, SeekOrigin.Begin);
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IFormFile formFile = new FormFile(ms, 0, fileData.Length, "file", input.FileName)
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{
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Headers = new HeaderDictionary(),
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ContentType = contentType
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};
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var uploadFileInput = input.Adapt<UploadFileInput>();
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uploadFileInput.File = formFile;
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return await UploadFile(uploadFileInput);
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}
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/// <summary>
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/// 上传多文件 🔖
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/// </summary>
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/// <param name="files"></param>
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/// <returns></returns>
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[DisplayName("上传多文件")]
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public async Task<List<SysFile>> UploadFiles([Required] List<IFormFile> files)
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{
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var fileList = new List<SysFile>();
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foreach (var file in files)
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{
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var uploadedFile = await UploadFile(new UploadFileInput { File = file });
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fileList.Add(uploadedFile);
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}
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return fileList;
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}
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/// <summary>
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/// 根据文件Id或Url下载 🔖
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/// </summary>
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/// <param name="input"></param>
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/// <returns></returns>
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[DisplayName("根据文件Id或Url下载")]
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public async Task<IActionResult> DownloadFile(SysFile input)
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{
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var file = input.Id > 0 ? await GetFile(input.Id) : await _sysFileRep.CopyNew().GetFirstAsync(u => u.Url == input.Url);
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var fileName = HttpUtility.UrlEncode(file.FileName, Encoding.GetEncoding("UTF-8"));
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return await GetFileStreamResult(file, fileName);
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}
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/// <summary>
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/// 文件预览 🔖
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/// </summary>
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/// <param name="id"></param>
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/// <returns></returns>
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[DisplayName("文件预览")]
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public async Task<IActionResult> GetPreview([FromRoute] long id)
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{
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var file = await GetFile(id);
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//var fileName = HttpUtility.UrlEncode(file.FileName, Encoding.GetEncoding("UTF-8"));
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return await GetFileStreamResult(file, file.Id + "");
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}
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/// <summary>
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/// 获取文件流
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/// </summary>
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/// <param name="file"></param>
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/// <param name="fileName"></param>
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/// <returns></returns>
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private async Task<IActionResult> GetFileStreamResult(SysFile file, string fileName)
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{
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return await _customFileProvider.GetFileStreamResultAsync(file, fileName);
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}
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/// <summary>
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/// 获取文件流
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/// </summary>
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[NonAction]
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public async Task<Stream> GetFileStream(SysFile file)
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{
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var fileName = HttpUtility.UrlEncode(file.FileName, Encoding.GetEncoding("UTF-8"));
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var result = await _customFileProvider.GetFileStreamResultAsync(file, fileName);
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return result.FileStream;
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}
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/// <summary>
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/// 下载指定文件Base64格式 🔖
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/// </summary>
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/// <param name="url"></param>
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/// <returns></returns>
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[DisplayName("下载指定文件Base64格式")]
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public async Task<string> DownloadFileBase64([FromBody] string url)
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{
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var sysFile = await _sysFileRep.CopyNew().GetFirstAsync(u => u.Url == url) ?? throw Oops.Oh($"文件不存在");
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return await _customFileProvider.DownloadFileBase64Async(sysFile);
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}
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/// <summary>
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/// 删除文件 🔖
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/// </summary>
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/// <param name="input"></param>
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/// <returns></returns>
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[ApiDescriptionSettings(Name = "Delete"), HttpPost]
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[DisplayName("删除文件")]
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public async Task DeleteFile(BaseIdInput input)
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{
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var file = await _sysFileRep.GetByIdAsync(input.Id) ?? throw Oops.Oh($"文件不存在");
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await _sysFileRep.DeleteAsync(file);
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await _customFileProvider.DeleteFileAsync(file);
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}
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/// <summary>
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/// 更新文件 🔖
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/// </summary>
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/// <param name="input"></param>
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/// <returns></returns>
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[ApiDescriptionSettings(Name = "Update"), HttpPost]
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[DisplayName("更新文件")]
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public async Task UpdateFile(SysFile input)
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{
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var isExist = await _sysFileRep.IsAnyAsync(u => u.Id == input.Id);
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if (!isExist) throw Oops.Oh(ErrorCodeEnum.D8000);
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await _sysFileRep.UpdateAsync(input);
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}
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/// <summary>
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/// 获取文件 🔖
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/// </summary>
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/// <param name="id"></param>
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/// <returns></returns>
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[DisplayName("获取文件")]
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public async Task<SysFile> GetFile([FromQuery] long id)
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{
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var file = await _sysFileRep.CopyNew().GetByIdAsync(id);
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return file ?? throw Oops.Oh(ErrorCodeEnum.D8000);
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}
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/// <summary>
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/// 根据文件Id集合获取文件 🔖
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/// </summary>
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/// <param name="ids"></param>
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/// <returns></returns>
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[DisplayName("根据文件Id集合获取文件")]
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public async Task<List<SysFile>> GetFileByIds([FromQuery][FlexibleArray<long>] List<long> ids)
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{
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return await _sysFileRep.AsQueryable().Where(u => ids.Contains(u.Id)).ToListAsync();
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}
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/// <summary>
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/// 获取文件路径 🔖
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/// </summary>
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/// <returns></returns>
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[DisplayName("获取文件路径")]
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public async Task<List<TreeNode>> GetFolder()
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{
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// 优化：直接在数据库层面获取不重复的文件路径
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var folders = await _sysFileRep.AsQueryable()
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.Select(u => u.FilePath)
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.Distinct()
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.ToListAsync();
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var pathTreeBuilder = new PathTreeBuilder();
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var tree = pathTreeBuilder.BuildTree(folders);
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return tree.Children;
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}
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/// <summary>
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/// 上传文件 🔖
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/// </summary>
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/// <param name="input"></param>
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/// <param name="targetPath">存储目标路径</param>
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/// <returns></returns>
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[DisplayName("上传文件")]
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public async Task<SysFile> UploadFile([FromForm] UploadFileInput input, [BindNever] string targetPath = "")
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{
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if (input.File == null || input.File.Length <= 0) throw Oops.Oh(ErrorCodeEnum.D8000);
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if (input.File.FileName.IndexOfAny(Path.GetInvalidFileNameChars()) >= 0) throw Oops.Oh(ErrorCodeEnum.D8005);
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// 判断是否重复上传的文件
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var sizeKb = input.File.Length / 1024; // 大小KB
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var fileMd5 = string.Empty;
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if (_uploadOptions.EnableMd5)
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{
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await using (var fileStream = input.File.OpenReadStream())
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{
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fileMd5 = OssUtils.ComputeContentMd5(fileStream, fileStream.Length);
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}
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// Mysql8 中如果使用了 utf8mb4_general_ci 之外的编码会出错，尽量避免在条件里使用.ToString()
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// 因为 Squsugar 并不是把变量转换为字符串来构造SQL语句，而是构造了CAST(123 AS CHAR)这样的语句，这样这个返回值是utf8mb4_general_ci，所以容易出错。
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var sysFile = await _sysFileRep.GetFirstAsync(u => u.FileMd5 == fileMd5 && u.SizeKb == sizeKb);
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if (sysFile != null) return sysFile;
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}
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// 验证文件类型
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if (!_uploadOptions.ContentType.Contains(input.File.ContentType)) throw Oops.Oh($"{ErrorCodeEnum.D8001}:{input.File.ContentType}");
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// 验证文件大小
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if (sizeKb > _uploadOptions.MaxSize) throw Oops.Oh($"{ErrorCodeEnum.D8002}，允许最大：{_uploadOptions.MaxSize}KB");
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// 获取文件后缀
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var suffix = Path.GetExtension(input.File.FileName).ToLower(); // 后缀
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if (string.IsNullOrWhiteSpace(suffix))
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suffix = string.Concat(".", input.File.ContentType.AsSpan(input.File.ContentType.LastIndexOf('/') + 1));
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if (!string.IsNullOrWhiteSpace(suffix))
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{
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//var contentTypeProvider = FS.GetFileExtensionContentTypeProvider();
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//suffix = contentTypeProvider.Mappings.FirstOrDefault(u => u.Value == file.ContentType).Key;
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// 修改 image/jpeg 类型返回的 .jpeg、jpe 后缀
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if (suffix == ".jpeg" || suffix == ".jpe")
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suffix = ".jpg";
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}
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if (string.IsNullOrWhiteSpace(suffix)) throw Oops.Oh(ErrorCodeEnum.D8003);
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// 防止客户端伪造文件类型
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if (!string.IsNullOrWhiteSpace(input.AllowSuffix) && !input.AllowSuffix.Contains(suffix)) throw Oops.Oh(ErrorCodeEnum.D8003);
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//if (!VerifyFileExtensionName.IsSameType(file.OpenReadStream(), suffix)) throw Oops.Oh(ErrorCodeEnum.D8001);
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// 文件存储位置
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var path = string.IsNullOrWhiteSpace(targetPath) ? _uploadOptions.Path : targetPath;
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path = path.ParseToDateTimeForRep();
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var newFile = input.Adapt<SysFile>();
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newFile.Id = YitIdHelper.NextId();
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// 优先使用用户指定的存储桶名称，如果没有指定则使用默认配置
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if (!string.IsNullOrEmpty(input.BucketName))
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{
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newFile.BucketName = input.BucketName;
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}
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else
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{
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// MultiOSSFileProvider会自动使用默认配置
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newFile.BucketName = _OSSProviderOptions.Enabled ? _OSSProviderOptions.Bucket : "Local";
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}
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newFile.FileName = Path.GetFileNameWithoutExtension(input.File.FileName);
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newFile.Suffix = suffix;
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newFile.SizeKb = sizeKb;
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newFile.FilePath = path;
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newFile.FileMd5 = fileMd5;
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newFile.DataId = input.DataId;
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var finalName = newFile.Id + suffix; // 文件最终名称
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newFile = await _customFileProvider.UploadFileAsync(input.File, newFile, path, finalName);
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await _sysFileRep.AsInsertable(newFile).ExecuteCommandAsync();
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return newFile;
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}
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/// <summary>
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/// 上传头像 🔖
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/// </summary>
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/// <param name="file"></param>
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/// <returns></returns>
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[DisplayName("上传头像")]
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public async Task<SysFile> UploadAvatar([Required] IFormFile file)
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{
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var sysFile = await UploadFile(new UploadFileInput { File = file, AllowSuffix = _imageType }, "upload/avatar");
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var sysUserRep = _sysFileRep.ChangeRepository<SqlSugarRepository<SysUser>>();
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var user = await sysUserRep.GetByIdAsync(_userManager.UserId);
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await sysUserRep.UpdateAsync(u => new SysUser() { Avatar = sysFile.Url }, u => u.Id == user.Id);
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// 删除已有头像文件
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if (!string.IsNullOrWhiteSpace(user.Avatar))
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{
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var fileId = Path.GetFileNameWithoutExtension(user.Avatar);
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if (long.TryParse(fileId, out var id))
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{
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try
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{
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await DeleteFile(new BaseIdInput { Id = id });
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}
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catch
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{
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// 忽略删除旧头像文件的错误，不影响新头像上传
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}
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}
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}
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return sysFile;
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}
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/// <summary>
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/// 上传电子签名 🔖
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/// </summary>
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/// <param name="file"></param>
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/// <returns></returns>
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[DisplayName("上传电子签名")]
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public async Task<SysFile> UploadSignature([Required] IFormFile file)
|
|
|
{
|
|
|
var sysFile = await UploadFile(new UploadFileInput { File = file, AllowSuffix = _imageType }, "upload/signature");
|
|
|
|
|
|
var sysUserRep = _sysFileRep.ChangeRepository<SqlSugarRepository<SysUser>>();
|
|
|
var user = await sysUserRep.GetByIdAsync(_userManager.UserId);
|
|
|
// 删除已有电子签名文件
|
|
|
if (!string.IsNullOrWhiteSpace(user.Signature) && user.Signature.EndsWith(".png"))
|
|
|
{
|
|
|
var fileId = Path.GetFileNameWithoutExtension(user.Signature);
|
|
|
if (long.TryParse(fileId, out var id))
|
|
|
{
|
|
|
try
|
|
|
{
|
|
|
await DeleteFile(new BaseIdInput { Id = id });
|
|
|
}
|
|
|
catch
|
|
|
{
|
|
|
// 忽略删除旧签名文件的错误，不影响新签名上传
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
await sysUserRep.UpdateAsync(u => new SysUser() { Signature = sysFile.Url }, u => u.Id == user.Id);
|
|
|
return sysFile;
|
|
|
}
|
|
|
|
|
|
#region 统一实体与文件关联时，业务应用实体只需要定义一个SysFile集合导航属性，业务增加和更新、删除分别调用即可
|
|
|
|
|
|
/// <summary>
|
|
|
/// 更新文件的业务数据Id
|
|
|
/// </summary>
|
|
|
/// <param name="dataId"></param>
|
|
|
/// <param name="sysFiles"></param>
|
|
|
/// <returns></returns>
|
|
|
[NonAction]
|
|
|
public async Task UpdateFileByDataId(long dataId, List<SysFile> sysFiles)
|
|
|
{
|
|
|
var newFileIds = sysFiles.Select(u => u.Id).ToList();
|
|
|
|
|
|
// 求文件Id差集并删除（无效文件）
|
|
|
var tmpFiles = await _sysFileRep.GetListAsync(u => u.DataId == dataId);
|
|
|
var tmpFileIds = tmpFiles.Select(u => u.Id).ToList();
|
|
|
var deleteFileIds = tmpFileIds.Except(newFileIds);
|
|
|
foreach (var fileId in deleteFileIds)
|
|
|
await DeleteFile(new BaseIdInput() { Id = fileId });
|
|
|
|
|
|
await _sysFileRep.UpdateAsync(u => new SysFile() { DataId = dataId }, u => newFileIds.Contains(u.Id));
|
|
|
}
|
|
|
|
|
|
/// <summary>
|
|
|
/// 删除业务数据对应的文件
|
|
|
/// </summary>
|
|
|
/// <param name="dataId"></param>
|
|
|
/// <returns></returns>
|
|
|
[NonAction]
|
|
|
public async Task DeleteFileByDataId(long dataId)
|
|
|
{
|
|
|
// 删除冗余无效的物理文件
|
|
|
var tmpFiles = await _sysFileRep.GetListAsync(u => u.DataId == dataId);
|
|
|
foreach (var file in tmpFiles)
|
|
|
await _customFileProvider.DeleteFileAsync(file);
|
|
|
await _sysFileRep.AsDeleteable().Where(u => u.DataId == dataId).ExecuteCommandAsync();
|
|
|
}
|
|
|
|
|
|
#endregion 统一实体与文件关联时，业务应用实体只需要定义一个SysFile集合导航属性，业务增加和更新、删除分别调用即可
|
|
|
} |