538 lines
18 KiB
C#
538 lines
18 KiB
C#
using System.Security.Cryptography;
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using System.Text;
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using System.Web;
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using JNPF.Common.Captcha.General;
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using JNPF.Common.Configuration;
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using JNPF.Common.Core.Manager;
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using JNPF.Common.Core.Manager.Files;
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using JNPF.Common.Enums;
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using JNPF.Common.Extension;
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using JNPF.Common.Manager;
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using JNPF.Common.Models;
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using JNPF.Common.Options;
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using JNPF.Common.Security;
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using JNPF.DataEncryption;
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using JNPF.DependencyInjection;
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using JNPF.DynamicApiController;
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using JNPF.FriendlyException;
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using JNPF.Logging.Attributes;
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using JNPF.RemoteRequest.Extensions;
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using JNPF.Systems.Interfaces.Common;
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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.Options;
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namespace JNPF.Systems.Common;
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/// <summary>
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/// 业务实现：通用控制器.
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/// </summary>
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[ApiDescriptionSettings(Tag = "Common", Name = "File", Order = 161)]
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[Route("api/[controller]")]
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[AllowAnonymous]
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[IgnoreLog]
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public class FileService : IFileService, IDynamicApiController, ITransient
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{
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private readonly AppOptions _appOptions;
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/// <summary>
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/// 验证码处理程序.
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/// </summary>
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private readonly IGeneralCaptcha _captchaHandler;
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/// <summary>
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/// 用户管理.
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/// </summary>
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private readonly IUserManager _userManager;
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/// <summary>
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/// 文件服务.
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/// </summary>
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private readonly IFileManager _fileManager;
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/// <summary>
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/// 缓存服务.
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/// </summary>
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private readonly ICacheManager _cacheManager;
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/// <summary>
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/// 初始化一个<see cref="FileService"/>类型的新实例.
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/// </summary>
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public FileService(
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IOptions<AppOptions> appOptions,
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IGeneralCaptcha captchaHandler,
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IUserManager userManager,
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ICacheManager cacheManager,
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IFileManager fileManager)
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{
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_appOptions = appOptions.Value;
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_captchaHandler = captchaHandler;
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_userManager = userManager;
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_cacheManager = cacheManager;
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_fileManager = fileManager;
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}
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#region GET
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/// <summary>
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/// 上传文件预览.
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/// </summary>
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/// <returns></returns>
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[HttpGet("Uploader/Preview")]
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public async Task<dynamic> Preview(string fileName)
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{
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string[]? typeList = new string[] { "doc", "docx", "xls", "xlsx", "ppt", "pptx", "pdf", "jpg", "jpeg", "gif", "png", "bmp" };
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string? type = fileName.Split('.').LastOrDefault();
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if (typeList.Contains(type))
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{
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if (fileName.IsNotEmptyOrNull())
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{
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string previewUrl = string.Empty;
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switch (_appOptions.PreviewType)
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{
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case PreviewType.kkfile:
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previewUrl = KKFileUploaderPreview(fileName);
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break;
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case PreviewType.yozo:
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previewUrl = await YoZoUploaderPreview(fileName, 5, 1);
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break;
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}
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return previewUrl;
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}
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else
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{
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throw Oops.Oh(ErrorCode.D8000);
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}
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}
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else
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{
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throw Oops.Oh(ErrorCode.D1802);
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}
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}
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/// <summary>
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/// 生成图片链接.
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/// </summary>
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/// <param name="type">图片类型.</param>
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/// <param name="fileName">注意 后缀名前端故意把 .替换@ .</param>
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/// <returns></returns>
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[HttpGet("Image/{type}/{fileName}")]
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public async Task<IActionResult> GetImg(string type, string fileName)
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{
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string? filePath = Path.Combine(GetPathByType(type), fileName.Replace("@", "."));
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return await _fileManager.DownloadFileByType(filePath, fileName);
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}
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/// <summary>
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/// 生成大屏图片链接.
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/// </summary>
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/// <param name="type">图片类型.</param>
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/// <param name="fileName">注意 后缀名前端故意把 .替换@ .</param>
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/// <returns></returns>
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[HttpGet("VisusalImg/{type}/{fileName}")]
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public async Task<IActionResult> GetScreenImg(string type, string fileName)
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{
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string filePath = Path.Combine(GetPathByType(type), type, fileName.Replace("@", "."));
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return await _fileManager.DownloadFileByType(filePath, fileName);
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}
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/// <summary>
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/// 获取图形验证码.
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/// </summary>
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/// <param name="timestamp">时间戳.</param>
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/// <returns></returns>
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[HttpGet("ImageCode/{timestamp}")]
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[NonUnify]
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public async Task<IActionResult> GetCode(string timestamp)
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{
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return new FileContentResult(await _captchaHandler.CreateCaptchaImage(timestamp, 114, 32), "image/jpeg");
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}
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/// <summary>
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/// 下载.
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/// </summary>
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/// <param name="fileName"></param>
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[HttpGet("down/{fileName}")]
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public async Task FileDown(string fileName)
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{
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string? systemFilePath = Path.Combine(FileVariable.SystemFilePath, fileName);
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var fileStreamResult = await _fileManager.DownloadFileByType(systemFilePath, fileName);
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byte[] bytes = new byte[fileStreamResult.FileStream.Length];
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fileStreamResult.FileStream.Read(bytes, 0, bytes.Length);
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fileStreamResult.FileStream.Close();
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var httpContext = App.HttpContext;
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httpContext.Response.ContentType = "application/octet-stream";
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httpContext.Response.Headers.Add("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(fileName, Encoding.UTF8));
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httpContext.Response.Headers.Add("Content-Length", bytes.Length.ToString());
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httpContext.Response.Body.WriteAsync(bytes);
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httpContext.Response.Body.Flush();
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httpContext.Response.Body.Close();
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}
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#region 下载附件
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/// <summary>
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/// 获取下载文件链接.
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/// </summary>
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/// <param name="type">图片类型.</param>
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/// <param name="fileName">文件名称.</param>
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/// <returns></returns>
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[HttpGet("Download/{type}/{fileName}")]
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public dynamic DownloadUrl(string type, string fileName)
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{
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string? url = string.Format("{0}|{1}|{2}", _userManager.UserId, fileName, type);
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string? encryptStr = DESCEncryption.Encrypt(url, "JNPF");
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_cacheManager.Set(fileName, string.Empty);
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return new { name = fileName, url = string.Format("/api/file/Download?encryption={0}", encryptStr) };
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}
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/// <summary>
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/// 下载文件链接.
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/// </summary>
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[HttpGet("Download")]
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public async Task<dynamic> DownloadFile([FromQuery] string encryption, [FromQuery] string name)
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{
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string decryptStr = DESCEncryption.Decrypt(encryption, "JNPF");
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List<string> paramsList = decryptStr.Split("|").ToList();
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if (paramsList.Count > 0)
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{
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string fileName = paramsList.Count > 1 ? paramsList[1] : string.Empty;
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if (_cacheManager.Exists(fileName))
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{
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_cacheManager.Del(fileName);
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}
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else
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{
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throw Oops.Oh(ErrorCode.D1805);
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}
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string type = paramsList.Count > 2 ? paramsList[2] : string.Empty;
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string filePath = Path.Combine(GetPathByType(type), fileName.Replace("@", "."));
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string fileDownloadName = name.IsNullOrEmpty() ? fileName : name;
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return await _fileManager.DownloadFileByType(filePath, fileDownloadName);
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}
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else
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{
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throw Oops.Oh(ErrorCode.D8000);
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}
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}
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/// <summary>
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/// App启动信息.
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/// </summary>
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[HttpGet("AppStartInfo/{appName}")]
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public async Task<dynamic> AppStartInfo(string appName)
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{
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return new { appVersion = KeyVariable.AppVersion, appUpdateContent = KeyVariable.AppUpdateContent };
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}
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#endregion
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/// <summary>
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/// 分片上传获取.
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/// </summary>
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/// <param name="input">请求参数.</param>
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/// <returns></returns>
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[HttpGet("chunk")]
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public async Task<dynamic> CheckChunk([FromQuery] ChunkModel input)
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{
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try
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{
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if (!AllowFileType(input.extension, input.extension))
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throw Oops.Oh(ErrorCode.D1800);
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string path = GetPathByType(string.Empty);
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string filePath = Path.Combine(path, input.identifier);
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var chunkFiles = FileHelper.GetAllFiles(filePath);
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List<int> existsChunk = chunkFiles.FindAll(x => !FileHelper.GetFileType(x).Equals("tmp"))
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.Select(x => x.FullName.Replace(input.identifier + "-", string.Empty).ParseToInt()).ToList();
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return new { chunkNumbers = existsChunk, merge = false };
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}
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catch (Exception ex)
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{
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throw;
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}
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}
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#endregion
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#region POST
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/// <summary>
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/// 上传文件/图片.
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/// </summary>
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/// <returns></returns>
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[HttpPost("Uploader/{type}")]
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[AllowAnonymous]
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[IgnoreLog]
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public async Task<dynamic> Uploader(string type, IFormFile file)
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{
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string? fileType = Path.GetExtension(file.FileName).Replace(".", string.Empty);
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if (!AllowFileType(fileType, type))
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throw Oops.Oh(ErrorCode.D1800);
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string filePath = GetPathByType(type);
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string fileName = string.Format("{0}{1}{2}", DateTime.Now.ToString("yyyyMMdd"), RandomExtensions.NextLetterAndNumberString(new Random(), 5), Path.GetExtension(file.FileName));
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var stream = file.OpenReadStream();
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await _fileManager.UploadFileByType(stream, filePath, fileName);
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return new { name = fileName, url = string.Format("/api/File/Image/{0}/{1}", type, fileName), fileSize = file.Length, fileExtension = fileType };
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}
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/// <summary>
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/// 上传图片.
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/// </summary>
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/// <returns></returns>
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[HttpPost("Uploader/userAvatar")]
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[AllowAnonymous]
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[IgnoreLog]
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public async Task<dynamic> UploadImage(IFormFile file)
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{
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string? ImgType = Path.GetExtension(file.FileName).Replace(".", string.Empty);
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if (!this.AllowImageType(ImgType))
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throw Oops.Oh(ErrorCode.D5013);
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string? filePath = FileVariable.UserAvatarFilePath;
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string? fileName = string.Format("{0}{1}{2}", DateTime.Now.ToString("yyyyMMdd"), RandomExtensions.NextLetterAndNumberString(new Random(), 5), Path.GetExtension(file.FileName));
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var stream = file.OpenReadStream();
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await _fileManager.UploadFileByType(stream, filePath, fileName);
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return new FileControlsModel { name = fileName, url = string.Format("/api/file/Image/userAvatar/{0}", fileName), fileSize = file.Length, fileExtension = ImgType };
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}
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/// <summary>
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/// 分片上传附件.
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/// </summary>
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/// <param name="input"></param>
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/// <returns></returns>
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[HttpPost("chunk")]
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[AllowAnonymous]
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[IgnoreLog]
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public async Task<dynamic> UploadChunk([FromForm] ChunkModel input)
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{
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if (!AllowFileType(input.extension, input.extension))
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throw Oops.Oh(ErrorCode.D1800);
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return await _fileManager.UploadChunk(input);
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}
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/// <summary>
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/// 分片组装.
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/// </summary>
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/// <param name="input"></param>
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/// <returns></returns>
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[HttpPost("merge")]
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[AllowAnonymous]
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[IgnoreLog]
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public async Task<dynamic> Merge([FromForm] ChunkModel input)
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{
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return await _fileManager.Merge(input);
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}
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#endregion
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#region PublicMethod
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#region 多种存储文件
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/// <summary>
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/// 根据存储类型上传文件.
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/// </summary>
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/// <param name="uploadFilePath">上传文件地址.</param>
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/// <param name="directoryPath">保存文件夹.</param>
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/// <param name="fileName">新文件名.</param>
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/// <returns></returns>
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[NonAction]
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public async Task UploadFileByType(string uploadFilePath, string directoryPath, string fileName)
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{
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FileStream? file = new FileStream(uploadFilePath, FileMode.Open, FileAccess.Read, FileShare.Read);
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await _fileManager.UploadFileByType(file, directoryPath, fileName);
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}
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#endregion
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/// <summary>
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/// 根据类型获取文件存储路径.
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/// </summary>
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/// <param name="type">文件类型.</param>
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/// <returns></returns>
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[NonAction]
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public string GetPathByType(string type)
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{
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return _fileManager.GetPathByType(type);
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}
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#region kkfile 文件预览
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/// <summary>
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/// KKFile 文件预览.
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/// </summary>
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/// <param name="fileName">文件名称.</param>
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/// <returns></returns>
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public string KKFileUploaderPreview(string fileName)
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{
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var domain = App.Configuration["JNPF_APP:Domain"];
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var filePath = (domain + "/api/File/down/" + fileName).ToBase64String();
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var kkFileDoMain = App.Configuration["JNPF_APP:KKFileDomain"];
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var kkurl = kkFileDoMain + "/onlinePreview?url=";
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return kkurl + filePath;
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}
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#endregion
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#region YoZo 生成 sign 方法
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/// <summary>
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/// 调用YoZo 文件预览.
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/// </summary>
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/// <param name="fileName">文件名.</param>
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/// <param name="maxNumber">最多请求次数.</param>
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/// <param name="number">当前请求次数.</param>
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/// <returns></returns>
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public async Task<string> YoZoUploaderPreview(string fileName, int maxNumber, int number)
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{
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string domain = _appOptions.YOZO.Domain;
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string uploadAPI = _appOptions.YOZO.UploadAPI;
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string downloadAPI = _appOptions.YOZO.DownloadAPI;
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string yozoAppId = _appOptions.YOZO.AppId;
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string yozoAppKey = _appOptions.YOZO.AppKey;
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string outputFilePath = string.Format("{0}/api/File/Image/annex/{1}", domain, fileName);
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Dictionary<string, string[]> dic = new Dictionary<string, string[]>();
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dic.Add("fileUrl", new string[] { outputFilePath });
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dic.Add("appId", new string[] { yozoAppId });
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string? sign = generateSign(yozoAppKey, dic);
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uploadAPI = string.Format(uploadAPI, outputFilePath, yozoAppId, sign);
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string? resStr = await uploadAPI.PostAsStringAsync();
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if (resStr.IsNotEmptyOrNull())
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{
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Dictionary<string, object>? result = resStr.ToObject<Dictionary<string, object>>();
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if (result.ContainsKey("data"))
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{
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Dictionary<string, object>? data = result["data"].ToObject<Dictionary<string, object>>();
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if (data != null)
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{
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string? fileVersionId = data.ContainsKey("fileVersionId") ? data["fileVersionId"].ToString() : string.Empty;
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#region 生成签名sign
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dic = new Dictionary<string, string[]>();
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dic.Add("fileVersionId", new string[] { fileVersionId });
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dic.Add("appId", new string[] { yozoAppId });
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sign = generateSign(yozoAppKey, dic);
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#endregion
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return string.Format(downloadAPI, fileVersionId, yozoAppId, sign);
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}
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else
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{
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return await YoZoUploaderPreview(fileName, maxNumber, number + 1);
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}
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}
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else
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{
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if (number >= maxNumber) return string.Empty;
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else return await YoZoUploaderPreview(fileName, maxNumber, number + 1);
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}
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}
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else
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{
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if (number >= maxNumber) return string.Empty;
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else return await YoZoUploaderPreview(fileName, maxNumber, number + 1);
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}
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}
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#endregion
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#endregion
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#region PrivateMethod
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/// <summary>
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/// 生成令牌.
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/// </summary>
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/// <param name="secret">签名.</param>
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/// <param name="paramMap">参数集合.</param>
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/// <returns></returns>
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private string generateSign(string secret, Dictionary<string, string[]> paramMap)
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{
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string fullParamStr = uniqSortParams(paramMap);
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return HmacSHA256(fullParamStr, secret);
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}
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/// <summary>
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/// uniq类型参数.
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/// </summary>
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/// <param name="paramMap"></param>
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/// <returns></returns>
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private string uniqSortParams(Dictionary<string, string[]> paramMap)
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{
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paramMap.Remove("sign");
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paramMap = paramMap.OrderBy(o => o.Key).ToDictionary(o => o.Key, p => p.Value);
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StringBuilder strB = new StringBuilder();
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foreach (KeyValuePair<string, string[]> kvp in paramMap)
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{
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string key = kvp.Key;
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string[] value = kvp.Value;
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if (value.Length > 0)
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{
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Array.Sort(value);
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foreach (string temp in value)
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{
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strB.Append(key).Append("=").Append(temp);
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}
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}
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else
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{
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strB.Append(key).Append("=");
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}
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}
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return strB.ToString();
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}
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/// <summary>
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/// 加密.
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/// </summary>
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/// <param name="data"></param>
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/// <param name="key"></param>
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/// <returns></returns>
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private string HmacSHA256(string data, string key)
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{
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string signRet = string.Empty;
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using (HMACSHA256 mac = new HMACSHA256(Encoding.UTF8.GetBytes(key)))
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{
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byte[] hash = mac.ComputeHash(Encoding.UTF8.GetBytes(data));
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signRet = hash.ToHexString();
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}
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|
|
|
return signRet;
|
|
}
|
|
|
|
/// <summary>
|
|
/// 允许文件类型.
|
|
/// </summary>
|
|
/// <param name="fileExtension">文件后缀名.</param>
|
|
/// <param name="type">文件类型.</param>
|
|
/// <returns></returns>
|
|
private bool AllowFileType(string fileExtension, string type)
|
|
{
|
|
List<string>? allowExtension = KeyVariable.AllowUploadFileType;
|
|
if (fileExtension.IsNullOrEmpty() || type.IsNullOrEmpty()) return false;
|
|
if (type.Equals("weixin"))
|
|
allowExtension = KeyVariable.WeChatUploadFileType;
|
|
return allowExtension.Any(a => a == fileExtension.ToLower());
|
|
}
|
|
|
|
/// <summary>
|
|
/// 允许文件类型.
|
|
/// </summary>
|
|
/// <param name="fileExtension">文件后缀名.</param>
|
|
/// <returns></returns>
|
|
private bool AllowImageType(string fileExtension)
|
|
{
|
|
return KeyVariable.AllowImageType.Any(a => a == fileExtension.ToLower());
|
|
}
|
|
|
|
#endregion
|
|
} |