cpython/Lib/test/test_http_cookies.py

# Simple test suite for http/cookies.py

from test.support import run_unittest, run_doctest, check_warnings
import unittest
from http import cookies
import pickle
import warnings

class CookieTests(unittest.TestCase):

    def setUp(self):
        self._warnings_manager = check_warnings()
        self._warnings_manager.__enter__()
        warnings.filterwarnings("ignore", ".* class is insecure.*",
                                DeprecationWarning)

    def tearDown(self):
        self._warnings_manager.__exit__(None, None, None)

    def test_basic(self):
        cases = [
            {'data': 'chips=ahoy; vienna=finger',
             'dict': {'chips':'ahoy', 'vienna':'finger'},
             'repr': "<SimpleCookie: chips='ahoy' vienna='finger'>",
             'output': 'Set-Cookie: chips=ahoy\nSet-Cookie: vienna=finger'},

            {'data': 'keebler="E=mc2; L=\\"Loves\\"; fudge=\\012;"',
             'dict': {'keebler' : 'E=mc2; L="Loves"; fudge=\012;'},
             'repr': '''<SimpleCookie: keebler='E=mc2; L="Loves"; fudge=\\n;'>''',
             'output': 'Set-Cookie: keebler="E=mc2; L=\\"Loves\\"; fudge=\\012;"'},

            # Check illegal cookies that have an '=' char in an unquoted value
            {'data': 'keebler=E=mc2',
             'dict': {'keebler' : 'E=mc2'},
             'repr': "<SimpleCookie: keebler='E=mc2'>",
             'output': 'Set-Cookie: keebler=E=mc2'},

            # Cookies with ':' character in their name. Though not mentioned in
            # RFC, servers / browsers allow it.

             {'data': 'key:term=value:term',
             'dict': {'key:term' : 'value:term'},
             'repr': "<SimpleCookie: key:term='value:term'>",
             'output': 'Set-Cookie: key:term=value:term'},

        ]

        for case in cases:
            C = cookies.SimpleCookie()
            C.load(case['data'])
            self.assertEqual(repr(C), case['repr'])
            self.assertEqual(C.output(sep='\n'), case['output'])
            for k, v in sorted(case['dict'].items()):
                self.assertEqual(C[k].value, v)

    def test_load(self):
        C = cookies.SimpleCookie()
        C.load('Customer="WILE_E_COYOTE"; Version=1; Path=/acme')

        self.assertEqual(C['Customer'].value, 'WILE_E_COYOTE')
        self.assertEqual(C['Customer']['version'], '1')
        self.assertEqual(C['Customer']['path'], '/acme')

        self.assertEqual(C.output(['path']),
            'Set-Cookie: Customer="WILE_E_COYOTE"; Path=/acme')
        self.assertEqual(C.js_output(), r"""
        <script type="text/javascript">
        <!-- begin hiding
        document.cookie = "Customer=\"WILE_E_COYOTE\"; Path=/acme; Version=1";
        // end hiding -->
        </script>
        """)
        self.assertEqual(C.js_output(['path']), r"""
        <script type="text/javascript">
        <!-- begin hiding
        document.cookie = "Customer=\"WILE_E_COYOTE\"; Path=/acme";
        // end hiding -->
        </script>
        """)

    def test_extended_encode(self):
        # Issue 9824: some browsers don't follow the standard; we now
        # encode , and ; to keep them from tripping up.
        C = cookies.SimpleCookie()
        C['val'] = "some,funky;stuff"
        self.assertEqual(C.output(['val']),
            'Set-Cookie: val="some\\054funky\\073stuff"')

    def test_special_attrs(self):
        # 'expires'
        C = cookies.SimpleCookie('Customer="WILE_E_COYOTE"')
        C['Customer']['expires'] = 0
        # can't test exact output, it always depends on current date/time
        self.assertTrue(C.output().endswith('GMT'))

        # loading 'expires'
        C = cookies.SimpleCookie()
        C.load('Customer="W"; expires=Wed, 01 Jan 2010 00:00:00 GMT')
        self.assertEqual(C['Customer']['expires'],
                         'Wed, 01 Jan 2010 00:00:00 GMT')
        C = cookies.SimpleCookie()
        C.load('Customer="W"; expires=Wed, 01 Jan 98 00:00:00 GMT')
        self.assertEqual(C['Customer']['expires'],
                         'Wed, 01 Jan 98 00:00:00 GMT')

        # 'max-age'
        C = cookies.SimpleCookie('Customer="WILE_E_COYOTE"')
        C['Customer']['max-age'] = 10
        self.assertEqual(C.output(),
                         'Set-Cookie: Customer="WILE_E_COYOTE"; Max-Age=10')

    def test_set_secure_httponly_attrs(self):
        C = cookies.SimpleCookie('Customer="WILE_E_COYOTE"')
        C['Customer']['secure'] = True
        C['Customer']['httponly'] = True
        self.assertEqual(C.output(),
            'Set-Cookie: Customer="WILE_E_COYOTE"; HttpOnly; Secure')

    def test_secure_httponly_false_if_not_present(self):
        C = cookies.SimpleCookie()
        C.load('eggs=scrambled; Path=/bacon')
        self.assertFalse(C['eggs']['httponly'])
        self.assertFalse(C['eggs']['secure'])

    def test_secure_httponly_true_if_present(self):
        # Issue 16611
        C = cookies.SimpleCookie()
        C.load('eggs=scrambled; httponly; secure; Path=/bacon')
        self.assertTrue(C['eggs']['httponly'])
        self.assertTrue(C['eggs']['secure'])

    def test_secure_httponly_true_if_have_value(self):
        # This isn't really valid, but demonstrates what the current code
        # is expected to do in this case.
        C = cookies.SimpleCookie()
        C.load('eggs=scrambled; httponly=foo; secure=bar; Path=/bacon')
        self.assertTrue(C['eggs']['httponly'])
        self.assertTrue(C['eggs']['secure'])
        # Here is what it actually does; don't depend on this behavior.  These
        # checks are testing backward compatibility for issue 16611.
        self.assertEqual(C['eggs']['httponly'], 'foo')
        self.assertEqual(C['eggs']['secure'], 'bar')

    def test_extra_spaces(self):
        C = cookies.SimpleCookie()
        C.load('eggs  =  scrambled  ;  secure  ;  path  =  bar   ; foo=foo   ')
        self.assertEqual(C.output(),
            'Set-Cookie: eggs=scrambled; Path=bar; Secure\r\nSet-Cookie: foo=foo')

    def test_quoted_meta(self):
        # Try cookie with quoted meta-data
        C = cookies.SimpleCookie()
        C.load('Customer="WILE_E_COYOTE"; Version="1"; Path="/acme"')
        self.assertEqual(C['Customer'].value, 'WILE_E_COYOTE')
        self.assertEqual(C['Customer']['version'], '1')
        self.assertEqual(C['Customer']['path'], '/acme')

        self.assertEqual(C.output(['path']),
                         'Set-Cookie: Customer="WILE_E_COYOTE"; Path=/acme')
        self.assertEqual(C.js_output(), r"""
        <script type="text/javascript">
        <!-- begin hiding
        document.cookie = "Customer=\"WILE_E_COYOTE\"; Path=/acme; Version=1";
        // end hiding -->
        </script>
        """)
        self.assertEqual(C.js_output(['path']), r"""
        <script type="text/javascript">
        <!-- begin hiding
        document.cookie = "Customer=\"WILE_E_COYOTE\"; Path=/acme";
        // end hiding -->
        </script>
        """)

    def test_invalid_cookies(self):
        # Accepting these could be a security issue
        C = cookies.SimpleCookie()
        for s in (']foo=x', '[foo=x', 'blah]foo=x', 'blah[foo=x',
                  'Set-Cookie: foo=bar', 'Set-Cookie: foo',
                  'foo=bar; baz', 'baz; foo=bar',
                  'secure;foo=bar', 'Version=1;foo=bar'):
            C.load(s)
            self.assertEqual(dict(C), {})
            self.assertEqual(C.output(), '')

    def test_pickle(self):
        rawdata = 'Customer="WILE_E_COYOTE"; Path=/acme; Version=1'
        expected_output = 'Set-Cookie: %s' % rawdata

        C = cookies.SimpleCookie()
        C.load(rawdata)
        self.assertEqual(C.output(), expected_output)

        for proto in range(pickle.HIGHEST_PROTOCOL + 1):
            with self.subTest(proto=proto):
                C1 = pickle.loads(pickle.dumps(C, protocol=proto))
                self.assertEqual(C1.output(), expected_output)


class MorselTests(unittest.TestCase):
    """Tests for the Morsel object."""

    def test_reserved_keys(self):
        M = cookies.Morsel()
        # tests valid and invalid reserved keys for Morsels
        for i in M._reserved:
            # Test that all valid keys are reported as reserved and set them
            self.assertTrue(M.isReservedKey(i))
            M[i] = '%s_value' % i
        for i in M._reserved:
            # Test that valid key values come out fine
            self.assertEqual(M[i], '%s_value' % i)
        for i in "the holy hand grenade".split():
            # Test that invalid keys raise CookieError
            self.assertRaises(cookies.CookieError,
                              M.__setitem__, i, '%s_value' % i)

    def test_setter(self):
        M = cookies.Morsel()
        # tests the .set method to set keys and their values
        for i in M._reserved:
            # Makes sure that all reserved keys can't be set this way
            self.assertRaises(cookies.CookieError,
                              M.set, i, '%s_value' % i, '%s_value' % i)
        for i in "thou cast _the- !holy! ^hand| +*grenade~".split():
            # Try typical use case. Setting decent values.
            # Check output and js_output.
            M['path'] = '/foo' # Try a reserved key as well
            M.set(i, "%s_val" % i, "%s_coded_val" % i)
            self.assertEqual(
                M.output(),
                "Set-Cookie: %s=%s; Path=/foo" % (i, "%s_coded_val" % i))
            expected_js_output = """
        <script type="text/javascript">
        <!-- begin hiding
        document.cookie = "%s=%s; Path=/foo";
        // end hiding -->
        </script>
        """ % (i, "%s_coded_val" % i)
            self.assertEqual(M.js_output(), expected_js_output)
        for i in ["foo bar", "foo@bar"]:
            # Try some illegal characters
            self.assertRaises(cookies.CookieError,
                              M.set, i, '%s_value' % i, '%s_value' % i)


def test_main():
    run_unittest(CookieTests, MorselTests)
    run_doctest(cookies)

if __name__ == '__main__':
    test_main()