/// <summary>
/// Saves an uploaded file to disk.
/// </summary>
private async Task <(string LocalPath, string UrlPath)> SaveUploadAsync(IFormFile file, string key, IMediaHandler handler)
{
var ext = Path.GetExtension(file.FileName);
var fileName = key + ext;
var filePath = Path.Combine(_env.WebRootPath, "media", fileName);
using (var localStream = new FileStream(filePath, FileMode.CreateNew))
using (var sourceStream = file.OpenReadStream())
await sourceStream.CopyToAsync(localStream);
using (var frame = await handler.ExtractThumbnailAsync(filePath, file.ContentType))
await MediaHandlerHelper.CreateThumbnailsAsync(filePath, frame);
return(filePath, $"~/media/{fileName}");
}
public static void PrepareMediaHandler(Object value, string SessionHandlerObject, bool SaveAsFile, bool EncryptedFile)
{
string FileName = "";
byte[] FullContent = null;
HttpContext.Current.Session.Remove(SessionHandlerObject);
HttpContext.Current.Session.Remove(SessionHandlerObject + "FileName");
try
{
if (SaveAsFile)
{
if (value == null)
{
return;
}
string FilePath = "";
try
{
FilePath = HttpContext.Current.Server.MapPath(value.ToString());
}
catch
{
if (value.ToString().StartsWith("/"))
{
FilePath = HttpContext.Current.Server.MapPath("~" + value.ToString());
}
}
//busca arquivo
if (!File.Exists(FilePath))
{
return;
}
using (FileStream fs = new FileStream(FilePath, FileMode.Open, FileAccess.Read, FileShare.Read))
{
FullContent = new byte[fs.Length];
fs.Read(FullContent, 0, (int)fs.Length);
if (EncryptedFile)
{
FullContent = Crypt.Decript_AES(FullContent);
}
FileName = Path.GetFileName(value.ToString());
HttpContext.Current.Session[SessionHandlerObject] = Convert.ToBase64String(FullContent);
HttpContext.Current.Session[SessionHandlerObject + "FileName"] = value.ToString(); // FileName;
}
}
else
{
int ContentStart = 0;
int ContentLenght = 0;
FullContent = (byte[])value;
if (FullContent == null)
{
return;
}
if (EncryptedFile)
{
FullContent = Crypt.Decript_AES(FullContent);
}
MediaHandlerHelper.ParseFileContent(FullContent, out ContentStart, out ContentLenght, out FileName);
HttpContext.Current.Session[SessionHandlerObject] = Convert.ToBase64String(FullContent);
HttpContext.Current.Session[SessionHandlerObject + "FileName"] = FileName;
}
}
catch
{
throw;
}
finally
{
value = null;
FullContent = null;
}
}
