/// <summary>
/// Inserts a picture
/// </summary>
/// <param name="formFile">Form file</param>
/// <param name="defaultFileName">File name which will be use if IFormFile.FileName not present</param>
/// <param name="virtualPath">Virtual path</param>
/// <returns>Picture</returns>
public virtual Picture InsertPicture(IFormFile formFile, string defaultFileName = "", string virtualPath = "")
{
var imgExt = new List <string>
{
".bmp",
".gif",
".jpeg",
".jpg",
".jpe",
".jfif",
".pjpeg",
".pjp",
".png",
".tiff",
".tif"
} as IReadOnlyCollection <string>;
var fileName = formFile.FileName;
if (string.IsNullOrEmpty(fileName) && !string.IsNullOrEmpty(defaultFileName))
{
fileName = defaultFileName;
}
//remove path (passed in IE)
fileName = _fileProvider.GetFileName(fileName);
var contentType = formFile.ContentType;
var fileExtension = _fileProvider.GetFileExtension(fileName);
if (!string.IsNullOrEmpty(fileExtension))
{
fileExtension = fileExtension.ToLowerInvariant();
}
if (imgExt.All(ext => !ext.Equals(fileExtension, StringComparison.CurrentCultureIgnoreCase)))
{
return(null);
}
//contentType is not always available
//that's why we manually update it here
//http://www.sfsu.edu/training/mimetype.htm
if (string.IsNullOrEmpty(contentType))
{
switch (fileExtension)
{
case ".bmp":
contentType = MimeTypes.ImageBmp;
break;
case ".gif":
contentType = MimeTypes.ImageGif;
break;
case ".jpeg":
case ".jpg":
case ".jpe":
case ".jfif":
case ".pjpeg":
case ".pjp":
contentType = MimeTypes.ImageJpeg;
break;
case ".png":
contentType = MimeTypes.ImagePng;
break;
case ".tiff":
case ".tif":
contentType = MimeTypes.ImageTiff;
break;
default:
break;
}
}
var picture = InsertPicture(_downloadService.GetDownloadBits(formFile), contentType, _fileProvider.GetFileNameWithoutExtension(fileName));
if (string.IsNullOrEmpty(virtualPath))
{
return(picture);
}
picture.VirtualPath = _fileProvider.GetVirtualPath(virtualPath);
UpdatePicture(picture);
return(picture);
}
