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import M2Crypto.RSA
import M2Crypto.EVP
import time, sys
import base64, cgi
str = sys.argv[1]
data = cgi.parse_qs(str)
ts = int(data['ts'][0])
user = data['user'][0]
signature = base64.urlsafe_b64decode(data['signature'][0])
data = '%d:%s' % (ts, user)
algo = 'sha256'
digest = M2Crypto.EVP.MessageDigest(algo)
digest.update(data)
digval = digest.final()
key = M2Crypto.RSA.load_pub_key('rsa.pub')
try:
if key.verify(digval, signature, algo = algo):
print 'OKAY'
else:
print 'FAIL'
except:
print 'FAIL (hard)'
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