public static CopyTemporaryFileResult CopyTemporaryFile(this IUploadStorage uploadStorage,
CopyTemporaryFileOptions options)
{
if (uploadStorage is null)
{
throw new ArgumentNullException(nameof(uploadStorage));
}
long size = uploadStorage.GetFileSize(options.TemporaryFile);
string path = PathHelper.ToUrl(UploadFormatting.FormatFilename(options));
path = uploadStorage.CopyFrom(uploadStorage, options.TemporaryFile, path, autoRename: true);
bool hasThumbnail = uploadStorage.FileExists(UploadPathHelper.GetThumbnailName(options.TemporaryFile));
var result = new CopyTemporaryFileResult()
{
FileSize = size,
Path = path,
OriginalName = options.OriginalName,
HasThumbnail = hasThumbnail
};
options.FilesToDelete?.RegisterNewFile(path);
options.FilesToDelete?.RegisterOldFile(options.TemporaryFile);
return(result);
}
public static string GetThumbnailUrl(this IUploadStorage uploadStorage, string path)
{
if (string.IsNullOrEmpty(path))
{
return(null);
}
var thumb = UploadPathHelper.GetThumbnailName(path);
return(uploadStorage.GetFileUrl(thumb));
}
private bool ProcessImageStream(Stream fileContent, ITextLocalizer localizer)
{
var imageChecker = new ImageChecker();
CheckResult = imageChecker.CheckStream(fileContent, true, out Image image, Logger);
try
{
FileSize = imageChecker.DataSize;
ImageWidth = imageChecker.Width;
ImageHeight = imageChecker.Height;
if (CheckResult != ImageCheckResult.JPEGImage &&
CheckResult != ImageCheckResult.GIFImage &&
CheckResult != ImageCheckResult.PNGImage)
{
ErrorMessage = imageChecker.FormatErrorMessage(CheckResult, localizer);
return(false);
}
else
{
IsImage = true;
var extension = CheckResult == ImageCheckResult.PNGImage ? ".png" :
(CheckResult == ImageCheckResult.GIFImage ? ".gif" : ".jpg");
storage.PurgeTemporaryFiles();
if (ThumbWidth > 0 || ThumbHeight > 0)
{
using Image thumbImage =
ThumbnailGenerator.Generate(image, ThumbWidth, ThumbHeight, ThumbScaleMode, ThumbBackColor);
var thumbFile = UploadPathHelper.GetThumbnailName(TemporaryFile);
using (var ms = new MemoryStream())
{
if (ThumbQuality != 0)
{
var p = new EncoderParameters(1);
p.Param[0] = new EncoderParameter(Encoder.Quality, ThumbQuality);
ImageCodecInfo jpegCodec = null;
ImageCodecInfo[] codecs = ImageCodecInfo.GetImageEncoders();
// Find the correct image codec
for (int i = 0; i < codecs.Length; i++)
{
if (codecs[i].MimeType == "image/jpeg")
{
jpegCodec = codecs[i];
}
}
thumbImage.Save(ms, jpegCodec, p);
}
else
{
thumbImage.Save(ms, ImageFormat.Jpeg);
}
ms.Seek(0, SeekOrigin.Begin);
ThumbFile = storage.WriteFile(thumbFile, ms, autoRename: false);
}
ThumbHeight = thumbImage.Width;
ThumbWidth = thumbImage.Height;
}
return(true);
}
}
finally
{
if (image != null)
{
image.Dispose();
}
}
}
private bool ProcessImageStream(Stream fileContent, ITextLocalizer localizer)
{
var imageChecker = new ImageChecker();
CheckResult = imageChecker.CheckStream(fileContent, true, out Image image, Logger);
try
{
FileSize = imageChecker.DataSize;
ImageWidth = imageChecker.Width;
ImageHeight = imageChecker.Height;
if (CheckResult != ImageCheckResult.JPEGImage &&
CheckResult != ImageCheckResult.GIFImage &&
CheckResult != ImageCheckResult.PNGImage)
{
ErrorMessage = imageChecker.FormatErrorMessage(CheckResult, localizer);
return(false);
}
else
{
IsImage = true;
var extension = CheckResult == ImageCheckResult.PNGImage ? ".png" :
(CheckResult == ImageCheckResult.GIFImage ? ".gif" : ".jpg");
storage.PurgeTemporaryFiles();
if (ThumbWidth > 0 || ThumbHeight > 0)
{
ThumbnailGenerator.Generate(image, ThumbWidth, ThumbHeight, ThumbScaleMode, ThumbBackColor,
inplace: true);
var thumbFile = UploadPathHelper.GetThumbnailName(TemporaryFile);
using (var ms = new MemoryStream())
{
if (ThumbQuality != 0)
{
image.Save(ms, new JpegEncoder {
Quality = ThumbQuality
});
}
else
{
image.Save(ms, new JpegEncoder());
}
ms.Seek(0, SeekOrigin.Begin);
ThumbFile = storage.WriteFile(thumbFile, ms, autoRename: false);
}
ThumbHeight = image.Width;
ThumbWidth = image.Height;
}
return(true);
}
}
finally
{
if (image != null)
{
image.Dispose();
}
}
}