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Do you know your price is easily hackable? Anyway I must implement a feature like this to my drawing app http://drawbang.com http://drawbang.com, cool idea!

• wlievens 15y ago
  What do you mean by "hackable price"? One can easily download the source code of course... He did wrap it in a frame or something to make it somewhat nontrivial.
  • jeremysalwen 15y ago
    I believe he is referring to this snippet in the source code: <form name="_xclick" action="https://www.paypal.com/cgi-bin/webscr https://www.paypal.com/cgi-bin/webscr method="post" > <input type="hidden" name="cmd" value="_xclick"> <input type="hidden" name="business" value="sidana_01@yahoo.co.in"> <input type="hidden" name="image_url" value=""> <input type="hidden" name="cpp_header_image" value=""> <input type="hidden" name="currency_code" value="USD"> <input type="hidden" name="item_name" value="Drawing with jQuery on Canvas Script"> <input type="hidden" name="amount" value="10.00"> </form>
    • deleted 15y ago
      [deleted]
    • fezzl 15y ago
      PayPal IPN solves this by returning the transaction data to whatever IPN URL that you specify. You can then verify that the correct amount was paid.
• deutronium 15y ago
  Maybe he's using Paypal's IPN (Instant Payment Notification) system, to only send out the sourcecode when the user has paid the correct amount.
• deleted 15y ago
  [deleted]
• motyar 15y ago
  Yes I know that. If I ll receive less payment, I ll not send the code. Your application is cool!! keep up good work. Thank for the link!!