How to skip unsupported image using cfimage processing? - coldfusion

Question

I am using ColdFusion 10.
When trying to read some image files, ColdFusion returns no values and no error messages are shown.
I tried to re-size an image using cfimage tag. It is crashing. So I tried to get info about the image using "imageinfo" function. It returns blank. Please help me to either get some info or skip the image. Can anyone help me?
I tried reading the file which caused the anomaly using
<cfimage action="read" source="full pathname" name="image">
<cfset image = imageRead(full pathname)>
and many other ColdFusion documented functions. No error was shown. No output was obtained. I used cffile which showed unsupported file type error.
<cffile
action = "readBinary" file = "full pathname" variable = "variable name"
>
Thanks Rino

Answer 1

Try using this function for reading images.
<cfimage> tag or imageNew() can have issues while trying to read image files which are corrupted or files saved with changed extensions (background transparent .png files saved as .jpeg) while uploading.
I think the main problem with these files is that there is a chance coldfusion doesn't throw an error of any sort when we try to read files mentioned above.
<cfscript>
public function readImage(fullpath){
//trying java imageio
var imageFile = createObject("java", "java.io.File").init(fullpath);
// read the image into a BufferedImage
var ImageIO = createObject("java", "javax.imageio.ImageIO");
try {
var bi = ImageIO.read(imageFile);
return ImageNew(bi);
} catch(any e) {
//try for bad formatted images
//create java file object, passing in path to image
var imageFile = createObject("java","java.io.File").init(fullpath);
//create a FileSeekableStream, passing in the image file we created
var fss = createObject("java","com.sun.media.jai.codec.FileSeekableStream").init(imageFile);
//create ParameterBlock object and initialize it (call constructor)
var pb = createObject("java","java.awt.image.renderable.ParameterBlock").init();
//create JAI object that will ultimately do the magic we need
var JAI = createObject("java","javax.media.jai.JAI");
try {
//pass in FileSeekableStream
pb.add(fss);
//use the JAI object to create a buffered jpeg image.
var buffImage = local.JAI.create("jpeg", pb).getAsBufferedImage();
//pass the buffered image to the ColdFusion imagenew()
var New_Image = imagenew(buffImage);
//make sure we close the stream
fss.close();
return New_Image;
} catch (any e) {
if (isDefined("fss")) {
fss.close();
}
rethrow;
}
}
}
</cfscript>