feat: initialize Evergreen Health backend
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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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namespace Admin.NET.Core.Service;
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public class DefaultFileProvider : ICustomFileProvider, ITransient
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{
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/// <summary>
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/// 构建文件的完整物理路径
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/// </summary>
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/// <param name="sysFile"></param>
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/// <returns></returns>
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private string BuildFullFilePath(SysFile sysFile)
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{
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return Path.Combine(App.WebHostEnvironment.WebRootPath, sysFile.FilePath ?? "", $"{sysFile.Id}{sysFile.Suffix}");
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}
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/// <summary>
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/// 构建目录的完整物理路径
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/// </summary>
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/// <param name="relativePath"></param>
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/// <returns></returns>
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private string BuildFullDirectoryPath(string relativePath)
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{
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return Path.Combine(App.WebHostEnvironment.WebRootPath, relativePath);
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}
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/// <summary>
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/// 确保目录存在
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/// </summary>
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/// <param name="directoryPath"></param>
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private void EnsureDirectoryExists(string directoryPath)
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{
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if (!Directory.Exists(directoryPath))
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Directory.CreateDirectory(directoryPath);
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}
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public Task DeleteFileAsync(SysFile sysFile)
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{
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var filePath = BuildFullFilePath(sysFile);
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if (File.Exists(filePath))
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File.Delete(filePath);
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return Task.CompletedTask;
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}
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public async Task<string> DownloadFileBase64Async(SysFile sysFile)
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{
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var realFile = BuildFullFilePath(sysFile);
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if (!File.Exists(realFile))
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{
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Log.Error($"DownloadFileBase64:文件[{realFile}]不存在");
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throw Oops.Oh($"文件[{sysFile.FilePath}]不存在");
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}
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byte[] fileBytes = await File.ReadAllBytesAsync(realFile);
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return Convert.ToBase64String(fileBytes);
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}
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public Task<FileStreamResult> GetFileStreamResultAsync(SysFile sysFile, string fileName)
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{
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var fullPath = BuildFullFilePath(sysFile);
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return Task.FromResult(new FileStreamResult(new FileStream(fullPath, FileMode.Open), "application/octet-stream")
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{
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FileDownloadName = fileName + sysFile.Suffix
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});
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}
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public async Task<SysFile> UploadFileAsync(IFormFile file, SysFile newFile, string path, string finalName)
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{
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newFile.Provider = ""; // 本地存储 Provider 显示为空
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var directoryPath = BuildFullDirectoryPath(path);
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EnsureDirectoryExists(directoryPath);
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var realFile = Path.Combine(directoryPath, finalName);
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await using var stream = File.Create(realFile);
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await file.CopyToAsync(stream);
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newFile.Url = $"{newFile.FilePath}/{newFile.Id + newFile.Suffix}";
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return newFile;
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}
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}
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