PS - there was a discussion recently on how to improve the Validator.
Validating an uploaded file based on mime type would be cool ! A quick search on the web led me to a company that does this With a java api http://www.oop-reserch.com/mime_prop.html It seems in jdk1.4 you can actually validate based on the binary pattern expected for a mime type. So if it is a gif, you can check that the bit pattern of the uploaded file matches that of a gif. This is apparently to avoid users uploading say a text file named mytextfile.gif Now that would be nice :-) Brian -----Original Message----- From: Brian McSweeney [mailto:[EMAIL PROTECTED] Sent: 22 August 2003 11:13 To: 'Struts Users Mailing List' Subject: Validating uploaded file as an image only Hi everyone, I've managed to get the struts file upload working successfully, using the struts FormFile class and the upload example. Cool :-) However, in my app, I only want images to be uploaded. I'm going to store the images on disk and put the path of the image file into the database. So I need to validate that only images are getting uploaded, not other file-types. I know nothing really about how to do this. I could just check that string returned by: FormFile.getContentType( ) is equal to image-gif, image-bnp, or image-jpeg. But is this enough? Also, I have noticed that when I upload an image file and the little Browser window pops up, if I select a gif image, but the file type bar says "All files" then the file isn't recognized as an image. It's recognized as an octet-stream. So does the browser window specify the file type to the browser? Anyway, Hope someone can give me some advice, As always, Thanks very much, Brian --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
