79 lines
4.3 KiB
C#
79 lines
4.3 KiB
C#
// 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 OnceMi.AspNetCore.OSS;
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namespace Admin.NET.Core.Service;
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public class OSSFileProvider : ICustomFileProvider,ITransient
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{
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private readonly IOSSService _OSSService;
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private readonly OSSProviderOptions _OSSProviderOptions;
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public OSSFileProvider(IOptions<OSSProviderOptions> oSSProviderOptions, IOSSServiceFactory ossServiceFactory) {
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_OSSProviderOptions = oSSProviderOptions.Value;
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if (_OSSProviderOptions.Enabled)
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_OSSService = ossServiceFactory.Create(Enum.GetName(_OSSProviderOptions.Provider));
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}
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public async Task DeleteFileAsync(SysFile file)
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{
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await _OSSService.RemoveObjectAsync(file.BucketName, string.Concat(file.FilePath, "/", $"{file.Id}{file.Suffix}"));
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}
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public async Task<string> DownloadFileBase64Async(SysFile file)
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{
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using var httpClient = new HttpClient();
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HttpResponseMessage response = await httpClient.GetAsync(file.Url);
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if (response.IsSuccessStatusCode)
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{
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// 读取文件内容并将其转换为 Base64 字符串
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byte[] fileBytes = await response.Content.ReadAsByteArrayAsync();
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return Convert.ToBase64String(fileBytes);
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}
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throw new HttpRequestException($"Request failed with status code: {response.StatusCode}");
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}
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public async Task<FileStreamResult> GetFileStreamResultAsync(SysFile file, string fileName)
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{
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var filePath = Path.Combine(file.FilePath ?? "", file.Id + file.Suffix);
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var httpRemoteService = App.GetRequiredService<IHttpRemoteService>();
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var stream = await httpRemoteService.GetAsStreamAsync(await _OSSService.PresignedGetObjectAsync(file.BucketName, filePath, 5));
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return new FileStreamResult(stream, "application/octet-stream") { FileDownloadName = fileName + file.Suffix };
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}
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public async Task<SysFile> UploadFileAsync(IFormFile file,SysFile sysFile,string path,string finalName)
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{
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sysFile.Provider = Enum.GetName(_OSSProviderOptions.Provider);
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var filePath = string.Concat(path, "/", finalName);
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await _OSSService.PutObjectAsync(sysFile.BucketName, filePath, file.OpenReadStream());
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// http://<你的bucket名字>.oss.aliyuncs.com/<你的object名字>
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// 生成外链地址 方便前端预览
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switch (_OSSProviderOptions.Provider)
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{
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case OSSProvider.Aliyun:
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sysFile.Url = $"{(_OSSProviderOptions.IsEnableHttps ? "https" : "http")}://{sysFile.BucketName}.{_OSSProviderOptions.Endpoint}/{filePath}";
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break;
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case OSSProvider.QCloud:
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var protocol = _OSSProviderOptions.IsEnableHttps ? "https" : "http";
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sysFile.Url = !string.IsNullOrWhiteSpace(_OSSProviderOptions.CustomHost)
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? $"{protocol}://{_OSSProviderOptions.CustomHost}/{filePath}"
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: $"{protocol}://{sysFile.BucketName}-{_OSSProviderOptions.Endpoint}.cos.{_OSSProviderOptions.Region}.myqcloud.com/{filePath}";
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break;
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case OSSProvider.Minio:
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// 获取Minio文件的下载或者预览地址
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// newFile.Url = await GetMinioPreviewFileUrl(newFile.BucketName, filePath);// 这种方法生成的Url是有7天有效期的，不能这样使用
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// 需要在MinIO中的Buckets开通对 Anonymous 的readonly权限
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var customHost = _OSSProviderOptions.CustomHost;
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if (string.IsNullOrWhiteSpace(customHost))
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customHost = _OSSProviderOptions.Endpoint;
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sysFile.Url = $"{(_OSSProviderOptions.IsEnableHttps ? "https" : "http")}://{customHost}/{sysFile.BucketName}/{filePath}";
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break;
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}
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return sysFile;
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}
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}
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