On Mon, Oct 5, 2009 at 6:30 PM, Graham Cox <graham....@bigpond.com> wrote: > This is true, but how far are you prepared to go? Others have suggested > checking a few bytes into the file's header which should be reasonable > enough, but I could create a file having a valid PDF header and garbage > thereafter... you cannot protect yourself against that sort of thing, so the > question is where your code would draw the line. Most people would draw it > with a simple check of the extension and maybe for files that traditionally > have been subject to extension abuse (I don't think pdf is one of them), a > few header bytes.
Please don't read files that you haven't been asked to open. Those of us with network-mounted home directories will not appreciate our open dialogs beachball as your delegate traverses the network for every single file. --Kyle Sluder _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
