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62 lines
2.2 KiB
Python
Executable File
62 lines
2.2 KiB
Python
Executable File
#!/usr/bin/env python
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# TODO: Is there some way to limit this program's access to the database
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# so that it cannot change any values, but can still publish pubsub
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# messages? That would make the security analysis of the system as a
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# whole clearer.
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import web, redis
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urls = (
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'/([a-f0-9]{64})', 'form',
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'/submit=([a-f0-9]{64})', 'payment'
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)
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r = redis.Redis()
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class form(object):
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def GET(self, what):
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web.header("Content-type", "text/html")
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return """
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<html>
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<h1>Payment required</h1>
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Due to certificate authority policy, issuing this certificate requires a payment.
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<p>
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<hr width="70%%" />
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<p>
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A payment of <b>17.00 simoleons</b> is due now.
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<p>
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In order to process this payment, please pretend to enter a 16-digit credit-card
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number below, and then click the Submit Payment button.
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<p>
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<form action="/payment.py/submit=%s" method="GET">
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<i>Credit Card Type</i> <select name=""><option>Vista</option><option>MisterCard</option><option>Discovery</option></select> <br />
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<i>Credit Card Number</i> <input type="text" name="" style="font-family:monospace" autocomplete="off" /><br />
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<input type="submit" value="Submit Payment">
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</form>
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This payment will appear on your
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credit card statement as TRUSTIFIABLE CERTIFICATE SERVICES.
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</html>
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""" % what
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def hexdigit(s):
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return s in "0123456789abcdef"
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class payment(object):
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def GET(self, session):
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web.header("Content-type", "text/html")
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if len(session) != 64 or not all(hexdigit(s) for s in session):
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return "Attempt to process payment for invalid session."
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if session not in r or r.hget(self.id, "live") != "True":
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return "Attempt to process payment for invalid session."
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if r.hget(session, "state") != "payment":
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return "Attempt to process payment for session not expecting it."
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r.publish("payments", session)
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return "<h1>Thank you!</h1> Processed a payment for session ID %s." % session
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if __name__ == "__main__":
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app = web.application(urls, globals())
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app.run()
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# vim: set tabstop=4 shiftwidth=4 expandtab
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