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annotate test/cmp_helper.py @ 5717:cad18de2b988

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issue2550949: Rate limit password guesses/login attempts. Generic rate limit mechanism added. Deployed for web page logins. Default is 3 login attempts/minute for a user. After which one login attempt every 20 seconds can be done. Uses gcra algorithm so all I need to store is a username and timestamp in the one time key database. This does mean I don't have a list of all failed login attempts as part of the rate limiter. Set up config setting as well so admin can tune the rate. Maybe 1 every 10 seconds is ok at a site with poor typists who need 6 attempts to get the password right 8-). The gcra method can also be used to limit the rest and xmlrpc interfaces if needed. The mechanism I added also supplies a status method that calculates the expected values for http headers returned as part of rate limiting. Also tests added to test all code paths I hope.
author John Rouillard <rouilj@ieee.org>
date Sat, 11 May 2019 17:24:58 -0400
parents 19bd4b413ed6
children
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5513
19bd4b413ed6 be more lenient when comparing string results
Christof Meerwald <cmeerw@cmeerw.org>
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1 class StringFragmentCmpHelper:
19bd4b413ed6 be more lenient when comparing string results
Christof Meerwald <cmeerw@cmeerw.org>
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2 def compareStringFragments(self, s, fragments):
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Christof Meerwald <cmeerw@cmeerw.org>
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3 """Compare a string agains a list of fragments where a tuple denotes a
19bd4b413ed6 be more lenient when comparing string results
Christof Meerwald <cmeerw@cmeerw.org>
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4 set of alternatives
19bd4b413ed6 be more lenient when comparing string results
Christof Meerwald <cmeerw@cmeerw.org>
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5 """
19bd4b413ed6 be more lenient when comparing string results
Christof Meerwald <cmeerw@cmeerw.org>
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6 pos = 0
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Christof Meerwald <cmeerw@cmeerw.org>
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7 for frag in fragments:
19bd4b413ed6 be more lenient when comparing string results
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8 if type(frag) != tuple:
19bd4b413ed6 be more lenient when comparing string results
Christof Meerwald <cmeerw@cmeerw.org>
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9 self.assertEqual(s[pos:pos + len(frag)], frag)
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10 pos += len(frag)
19bd4b413ed6 be more lenient when comparing string results
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11 else:
19bd4b413ed6 be more lenient when comparing string results
Christof Meerwald <cmeerw@cmeerw.org>
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12 found = False
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Christof Meerwald <cmeerw@cmeerw.org>
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13 for alt in frag:
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Christof Meerwald <cmeerw@cmeerw.org>
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14 if s[pos:pos + len(alt)] == alt:
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Christof Meerwald <cmeerw@cmeerw.org>
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15 pos += len(alt)
19bd4b413ed6 be more lenient when comparing string results
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16 found = True
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Christof Meerwald <cmeerw@cmeerw.org>
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17 break
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Christof Meerwald <cmeerw@cmeerw.org>
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18
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19 if not found:
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20 l = max(map(len, frag))
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21 raise AssertionError('%s != %s' %
19bd4b413ed6 be more lenient when comparing string results
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22 (repr(s[pos:pos + l]), str(frag)))
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Christof Meerwald <cmeerw@cmeerw.org>
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23 self.assertEqual(s[pos:], '')
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