public async Task <IActionResult> PostFile()
{
long storageId = 1; // TODO: Variabel machen
if (!Request.HasFormContentType)
{
return(BadRequest());
}
Models.FileVersion @version = new FileVersion();
var form = Request.Form;
foreach (IFormFile formFile in form.Files)
{
StorageSettingFilesystem @storageSetting = await _context.StoragesSettingsFilesystem.SingleOrDefaultAsync(m => m.StorageId == storageId);
@version.Created = DateTimeOffset.Now;
@version.LastAccess = DateTime.Now;
@version.Extension = Tools.Files.GetFileExtension(formFile.FileName);
@version.StorageId = @storageSetting.StorageId;
@version.FileGuid = Guid.NewGuid();
@version.ContentType = formFile.ContentType;
@version.OriginalFileName = formFile.FileName;
@version.HashSha256 = Tools.Files.GenerateHashSHA256(formFile.OpenReadStream());
@version.SubPath = GetSubPath(@storageSetting);
@version.FileSizeInBytes = formFile.Length;
@version.File = new Models.File();
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
string targetDirectory = Path.Combine(@storageSetting.BasePath, @version.SubPath);
if (!Directory.Exists(targetDirectory))
{
Directory.CreateDirectory(targetDirectory);
}
string fileName = @version.FileGuid.ToString().Trim('{').Trim('}') + "." + @version.Extension;
var savePath = Path.Combine(targetDirectory, fileName);
using (var fileStream = new FileStream(savePath, FileMode.Create))
{
formFile.CopyTo(fileStream);
}
_context.FileVersions.Add(@version);
await _context.SaveChangesAsync();
@version.File.CurrentVersionId = @version.FileVersionId;
await _context.SaveChangesAsync();
}
return(Created($"api/files/{@version.File.FileId}", @version.File.FileId));
}
public async Task <IActionResult> DownloadFileVersion([FromRoute] long fileId, long versionId)
{
FileVersion @version = await _context.FileVersions.SingleAsync(m => m.FileId == fileId && m.FileVersionId == versionId);
StorageSettingFilesystem @storageSetting = await _context.StoragesSettingsFilesystem.FirstAsync(s => s.StorageId == @version.StorageId);
string filePath = Path.Combine(@storageSetting.BasePath, @version.SubPath, @version.FileGuid.ToString() + "." + @version.Extension);
FileStream fs = new FileStream(filePath, FileMode.Open);
return(File(fs, @version.ContentType, @version.OriginalFileName));
}
public async Task <IActionResult> DownloadFile([FromRoute] long id)
{
Models.File @file = GetFileObject(id);
// loading related data
_context.Entry(@file).Reference(v => v.CurrentVersion).Load();
StorageSettingFilesystem @storageSetting = await _context.StoragesSettingsFilesystem.FirstAsync(s => s.StorageId == @file.CurrentVersion.StorageId);
string filePath = Path.Combine(@storageSetting.BasePath, @file.CurrentVersion.SubPath, @file.CurrentVersion.FileGuid.ToString() + "." + @file.CurrentVersion.Extension);
FileStream fs = new FileStream(filePath, FileMode.Open);
return(File(fs, @file.CurrentVersion.ContentType)); // "application /octet-stream"); // FileStreamResult
}
public async Task <IActionResult> PutFile([FromRoute] long id) // , [FromBody] Models.File @file)
{
long storageId = 1; // TODO: Variabel machen
StorageSettingFilesystem @storageSetting = await _context.StoragesSettingsFilesystem.SingleOrDefaultAsync(m => m.StorageId == storageId);
var form = Request.Form;
if (form.Files.Count == 0)
{
return(BadRequest("File missing"));
}
if (form.Files.Count > 1)
{
return(BadRequest("only one file allowed"));
}
IFormFile formFile = Request.Form.Files[0];
Models.File @file = GetFileObject(id);
FileVersion @version = new FileVersion();
//@version.File = @file; //.FileId;
@version.FileId = @file.FileId;
@version.Created = DateTimeOffset.Now;
@version.LastAccess = DateTime.Now;
@version.Extension = Tools.Files.GetFileExtension(formFile.FileName);
@version.StorageId = @storageSetting.StorageId;
@version.FileGuid = Guid.NewGuid();
@version.ContentType = formFile.ContentType;
@version.OriginalFileName = formFile.FileName;
@version.HashSha256 = Tools.Files.GenerateHashSHA256(formFile.OpenReadStream());
@version.SubPath = GetSubPath(@storageSetting);
@version.FileSizeInBytes = formFile.Length;
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
string targetDirectory = Path.Combine(@storageSetting.BasePath, @version.SubPath);
if (!Directory.Exists(targetDirectory))
{
Directory.CreateDirectory(targetDirectory);
}
string fileName = @version.FileGuid.ToString().Trim('{').Trim('}') + "." + @version.Extension;
var savePath = Path.Combine(targetDirectory, fileName);
using (var fileStream = new FileStream(savePath, FileMode.Create))
{
formFile.CopyTo(fileStream);
}
_context.FileVersions.Add(@version);
try
{
await _context.SaveChangesAsync();
_context.Entry(@version).State = EntityState.Modified;
@version.File.CurrentVersionId = @version.FileVersionId;
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException ex)
{
if (!VersionExistsInDatabase(id))
{
return(NotFound());
}
else
{
throw;
}
}
return(CreatedAtAction("GetFileObject", new { id = @file.FileId }, @file));
}
private string GetSubPath(StorageSettingFilesystem @storageSetting)
{
long maxId = this._context.FileVersions.Where(f => f.StorageId == @storageSetting.StorageId).Max(f => f.FileId) + 1;
return(Math.Ceiling((decimal)maxId / (decimal)@storageSetting.MaxElements).ToString());
}
