public JsonResult Crop(bool overwriteFile, string targetFileUrl, string sourceFileUrl, double resize, int?top, int?left, int?width, int?height)
{
var sourcePath = PathInfo.ConvertToPath(sourceFileUrl);
var targetPath = overwriteFile ? sourcePath : PathInfo.ConvertToPath(targetFileUrl);
if (!PathInfo.CheckSecurity(targetPath).Result)
{
return(Json(new { ok = false, message = LibraryStrings.AccessDenied }));
}
int sourceWidth = 0, sourceHeight = 0, sourceTop = 0, sourceLeft = 0;
if (!GetImageSize(sourcePath, ref sourceWidth, ref sourceHeight))
{
return(Json(new { ok = false, message = LibraryStrings.ExtensionIsNotAllowed }));
}
var targetWidth = width ?? (int)(sourceWidth * resize);
var targetHeight = height ?? (int)(sourceHeight * resize);
const int targetTop = 0;
const int targetLeft = 0;
sourceWidth = width.HasValue ? (int)(width.Value / resize) : sourceWidth;
sourceHeight = height.HasValue ? (int)(height.Value / resize) : sourceHeight;
sourceTop = top.HasValue ? (int)(top.Value / resize) : sourceTop;
sourceLeft = left.HasValue ? (int)(left.Value / resize) : sourceLeft;
if (System.IO.File.Exists(sourcePath))
{
using (var output = new Bitmap(targetWidth, targetHeight))
{
var resizer = Graphics.FromImage(output);
resizer.InterpolationMode = resize < 1 ? InterpolationMode.HighQualityBicubic : InterpolationMode.HighQualityBilinear;
using (var input = new Bitmap(sourcePath))
{
resizer.DrawImage(input, new Rectangle(targetLeft, targetTop, targetWidth, targetHeight), sourceLeft, sourceTop, sourceWidth, sourceHeight, GraphicsUnit.Pixel);
}
// ReSharper disable once AssignNullToNotNullAttribute
Directory.CreateDirectory(Path.GetDirectoryName(targetPath));
if (System.IO.File.Exists(targetPath))
{
System.IO.File.SetAttributes(targetPath, FileAttributes.Normal);
System.IO.File.Delete(targetPath);
}
using (var fs = System.IO.File.OpenWrite(targetPath))
{
var ext = Path.GetExtension(targetPath);
output.Save(fs, GetImageCodecInfo(ext), GetEncoderParameters(ext));
}
}
}
return(Json(new { ok = true, message = string.Empty }));
}
public JsonResult Crop([FromBody] CropViewModel model)
{
var sourcePath = PathInfo.ConvertToPath(model.SourceFileUrl);
var targetPath = model.OverwriteFile ? sourcePath : PathInfo.ConvertToPath(model.TargetFileUrl);
if (!PathInfo.CheckSecurity(targetPath).Result)
{
return(Json(new { ok = false, message = LibraryStrings.AccessDenied }));
}
int sourceWidth = 0, sourceHeight = 0, sourceTop = 0, sourceLeft = 0;
if (!GetImageSize(sourcePath, ref sourceWidth, ref sourceHeight))
{
return(Json(new { ok = false, message = LibraryStrings.ExtensionIsNotAllowed }));
}
var targetWidth = model.Width ?? (int)(sourceWidth * model.Resize);
var targetHeight = model.Height ?? (int)(sourceHeight * model.Resize);
sourceWidth = model.Width.HasValue ? (int)(model.Width.Value / model.Resize) : sourceWidth;
sourceHeight = model.Height.HasValue ? (int)(model.Height.Value / model.Resize) : sourceHeight;
sourceTop = model.Top.HasValue ? (int)(model.Top.Value / model.Resize) : sourceTop;
sourceLeft = model.Left.HasValue ? (int)(model.Left.Value / model.Resize) : sourceLeft;
if (System.IO.File.Exists(sourcePath))
{
using (var img = Image.Load(sourcePath))
{
img.Mutate(n => n
.Crop(new Rectangle(sourceLeft, sourceTop, sourceWidth, sourceHeight))
.Resize(targetWidth, targetHeight)
);
// ReSharper disable once AssignNullToNotNullAttribute
Directory.CreateDirectory(Path.GetDirectoryName(targetPath));
if (System.IO.File.Exists(targetPath))
{
System.IO.File.SetAttributes(targetPath, FileAttributes.Normal);
System.IO.File.Delete(targetPath);
}
img.Save(targetPath);
}
}
return(Json(new { ok = true, message = string.Empty }));
}
public JsonResult CheckForCrop(string targetFileUrl)
{
var path = PathInfo.ConvertToPath(targetFileUrl);
var ext = Path.GetExtension(path);
if (System.IO.File.Exists(path))
{
return(Json(new { ok = false, message = string.Format(LibraryStrings.FileExistsTryAnother, path) }));
}
if (string.IsNullOrEmpty(ext) || GetImageCodecInfo(ext) == null)
{
return(Json(new { ok = false, message = string.Format(LibraryStrings.ExtensionIsNotAllowed, ext) }));
}
if (!PathInfo.CheckSecurity(path).Result)
{
return(Json(new { ok = false, message = string.Format(LibraryStrings.AccessDenied, path, QPContext.CurrentUserName) }));
}
return(Json(new { ok = true, message = string.Empty }));
}
