[Mimedefang] strip invalid IMG tag
David F. Skoll
dfs at roaringpenguin.com
Mon Nov 29 09:29:23 EST 2004
On Mon, 29 Nov 2004, Marco Supino wrote:
> any html IMG tag which is NOT JPG, JPEG, JPE,GIF, BMP, PNG or SWF will
> be replaced with ------ , for example , the following IMG tag :
You cannot tell from the (lack of a) file extension whether or not
a IMG tag is valid or not. The following tag:
> <IMG SRC="http://www.12345.com/123/6813978.41.2394">
might be perfectly valid if fetching the URL returns a proper image and
MIME type.
You want to take a look at Anomy::HTMLCleaner from CPAN. But it's very
buggy and probably needs a lot of work. Alternatively, look at
writing something with HTML::Parser.
Regards,
David.
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