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			112 lines
		
	
	
		
			4.7 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			112 lines
		
	
	
		
			4.7 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
# -*- coding: utf-8 -*-
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from django.conf import settings
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from django.core.exceptions import ValidationError
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from django.http import HttpResponse
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from zerver.forms import email_is_not_mit_mailing_list
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from zerver.lib.rate_limiter import (
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    add_ratelimit_rule,
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    clear_history,
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    remove_ratelimit_rule,
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    RateLimitedUser,
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)
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from zerver.lib.zephyr import compute_mit_user_fullname
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from zerver.lib.test_classes import (
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    ZulipTestCase,
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)
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import DNS
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import mock
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import time
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import urllib
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class MITNameTest(ZulipTestCase):
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    def test_valid_hesiod(self) -> None:
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        with mock.patch('DNS.dnslookup', return_value=[['starnine:*:84233:101:Athena Consulting Exchange User,,,:/mit/starnine:/bin/bash']]):
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            self.assertEqual(compute_mit_user_fullname(self.mit_email("starnine")), "Athena Consulting Exchange User")
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        with mock.patch('DNS.dnslookup', return_value=[['sipbexch:*:87824:101:Exch Sipb,,,:/mit/sipbexch:/bin/athena/bash']]):
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            self.assertEqual(compute_mit_user_fullname("sipbexch@mit.edu"), "Exch Sipb")
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    def test_invalid_hesiod(self) -> None:
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        with mock.patch('DNS.dnslookup', side_effect=DNS.Base.ServerError('DNS query status: NXDOMAIN', 3)):
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            self.assertEqual(compute_mit_user_fullname("1234567890@mit.edu"), "1234567890@mit.edu")
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        with mock.patch('DNS.dnslookup', side_effect=DNS.Base.ServerError('DNS query status: NXDOMAIN', 3)):
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            self.assertEqual(compute_mit_user_fullname("ec-discuss@mit.edu"), "ec-discuss@mit.edu")
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    def test_mailinglist(self) -> None:
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        with mock.patch('DNS.dnslookup', side_effect=DNS.Base.ServerError('DNS query status: NXDOMAIN', 3)):
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            self.assertRaises(ValidationError, email_is_not_mit_mailing_list, "1234567890@mit.edu")
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        with mock.patch('DNS.dnslookup', side_effect=DNS.Base.ServerError('DNS query status: NXDOMAIN', 3)):
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            self.assertRaises(ValidationError, email_is_not_mit_mailing_list, "ec-discuss@mit.edu")
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    def test_notmailinglist(self) -> None:
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        with mock.patch('DNS.dnslookup', return_value=[['POP IMAP.EXCHANGE.MIT.EDU starnine']]):
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            email_is_not_mit_mailing_list("sipbexch@mit.edu")
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class RateLimitTests(ZulipTestCase):
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    def setUp(self) -> None:
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        settings.RATE_LIMITING = True
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        add_ratelimit_rule(1, 5)
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    def tearDown(self) -> None:
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        settings.RATE_LIMITING = False
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        remove_ratelimit_rule(1, 5)
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    def send_api_message(self, email: str, content: str) -> HttpResponse:
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        return self.api_post(email, "/api/v1/messages", {"type": "stream",
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                                                         "to": "Verona",
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                                                         "client": "test suite",
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                                                         "content": content,
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                                                         "topic": "whatever"})
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    def test_headers(self) -> None:
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        user = self.example_user('hamlet')
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        email = user.email
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        clear_history(RateLimitedUser(user))
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        result = self.send_api_message(email, "some stuff")
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        self.assertTrue('X-RateLimit-Remaining' in result)
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        self.assertTrue('X-RateLimit-Limit' in result)
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        self.assertTrue('X-RateLimit-Reset' in result)
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    def test_ratelimit_decrease(self) -> None:
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        user = self.example_user('hamlet')
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        email = user.email
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        clear_history(RateLimitedUser(user))
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        result = self.send_api_message(email, "some stuff")
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        limit = int(result['X-RateLimit-Remaining'])
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        result = self.send_api_message(email, "some stuff 2")
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        newlimit = int(result['X-RateLimit-Remaining'])
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        self.assertEqual(limit, newlimit + 1)
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    def test_hit_ratelimits(self) -> None:
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        user = self.example_user('cordelia')
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        email = user.email
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        clear_history(RateLimitedUser(user))
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        start_time = time.time()
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        for i in range(6):
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            with mock.patch('time.time', return_value=(start_time + i * 0.1)):
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                result = self.send_api_message(email, "some stuff %s" % (i,))
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        self.assertEqual(result.status_code, 429)
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        json = result.json()
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        self.assertEqual(json.get("result"), "error")
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        self.assertIn("API usage exceeded rate limit", json.get("msg"))
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        self.assertEqual(json.get('retry-after'), 0.5)
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        self.assertTrue('Retry-After' in result)
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        self.assertEqual(result['Retry-After'], '0.5')
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        # We actually wait a second here, rather than force-clearing our history,
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        # to make sure the rate-limiting code automatically forgives a user
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        # after some time has passed.
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        with mock.patch('time.time', return_value=(start_time + 1.0)):
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            result = self.send_api_message(email, "Good message")
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            self.assert_json_success(result)
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