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1import netrc, os, unittest, sys, textwrap
2from test import test_support
3
4temp_filename = test_support.TESTFN
5
6class NetrcTestCase(unittest.TestCase):
7
8    def make_nrc(self, test_data):
9        test_data = textwrap.dedent(test_data)
10        mode = 'w'
11        if sys.platform != 'cygwin':
12            mode += 't'
13        with open(temp_filename, mode) as fp:
14            fp.write(test_data)
15        self.addCleanup(os.unlink, temp_filename)
16        return netrc.netrc(temp_filename)
17
18    def test_default(self):
19        nrc = self.make_nrc("""\
20            machine host1.domain.com login log1 password pass1 account acct1
21            default login log2 password pass2
22            """)
23        self.assertEqual(nrc.hosts['host1.domain.com'],
24                         ('log1', 'acct1', 'pass1'))
25        self.assertEqual(nrc.hosts['default'], ('log2', None, 'pass2'))
26
27    def test_macros(self):
28        nrc = self.make_nrc("""\
29            macdef macro1
30            line1
31            line2
32
33            macdef macro2
34            line3
35            line4
36            """)
37        self.assertEqual(nrc.macros, {'macro1': ['line1\n', 'line2\n'],
38                                      'macro2': ['line3\n', 'line4\n']})
39
40    def _test_passwords(self, nrc, passwd):
41        nrc = self.make_nrc(nrc)
42        self.assertEqual(nrc.hosts['host.domain.com'], ('log', 'acct', passwd))
43
44    def test_password_with_leading_hash(self):
45        self._test_passwords("""\
46            machine host.domain.com login log password #pass account acct
47            """, '#pass')
48
49    def test_password_with_trailing_hash(self):
50        self._test_passwords("""\
51            machine host.domain.com login log password pass# account acct
52            """, 'pass#')
53
54    def test_password_with_internal_hash(self):
55        self._test_passwords("""\
56            machine host.domain.com login log password pa#ss account acct
57            """, 'pa#ss')
58
59    def _test_comment(self, nrc, passwd='pass'):
60        nrc = self.make_nrc(nrc)
61        self.assertEqual(nrc.hosts['foo.domain.com'], ('bar', None, passwd))
62        self.assertEqual(nrc.hosts['bar.domain.com'], ('foo', None, 'pass'))
63
64    def test_comment_before_machine_line(self):
65        self._test_comment("""\
66            # comment
67            machine foo.domain.com login bar password pass
68            machine bar.domain.com login foo password pass
69            """)
70
71    def test_comment_before_machine_line_no_space(self):
72        self._test_comment("""\
73            #comment
74            machine foo.domain.com login bar password pass
75            machine bar.domain.com login foo password pass
76            """)
77
78    def test_comment_before_machine_line_hash_only(self):
79        self._test_comment("""\
80            #
81            machine foo.domain.com login bar password pass
82            machine bar.domain.com login foo password pass
83            """)
84
85    def test_comment_at_end_of_machine_line(self):
86        self._test_comment("""\
87            machine foo.domain.com login bar password pass # comment
88            machine bar.domain.com login foo password pass
89            """)
90
91    def test_comment_at_end_of_machine_line_no_space(self):
92        self._test_comment("""\
93            machine foo.domain.com login bar password pass #comment
94            machine bar.domain.com login foo password pass
95            """)
96
97    def test_comment_at_end_of_machine_line_pass_has_hash(self):
98        self._test_comment("""\
99            machine foo.domain.com login bar password #pass #comment
100            machine bar.domain.com login foo password pass
101            """, '#pass')
102
103
104    @unittest.skipUnless(os.name == 'posix', 'POSIX only test')
105    def test_security(self):
106        # This test is incomplete since we are normally not run as root and
107        # therefore can't test the file ownership being wrong.
108        d = test_support.TESTFN
109        os.mkdir(d)
110        self.addCleanup(test_support.rmtree, d)
111        fn = os.path.join(d, '.netrc')
112        with open(fn, 'wt') as f:
113            f.write("""\
114                machine foo.domain.com login bar password pass
115                default login foo password pass
116                """)
117        with test_support.EnvironmentVarGuard() as environ:
118            environ.set('HOME', d)
119            os.chmod(fn, 0600)
120            nrc = netrc.netrc()
121            self.assertEqual(nrc.hosts['foo.domain.com'],
122                             ('bar', None, 'pass'))
123            os.chmod(fn, 0o622)
124            self.assertRaises(netrc.NetrcParseError, netrc.netrc)
125
126def test_main():
127    test_support.run_unittest(NetrcTestCase)
128
129if __name__ == "__main__":
130    test_main()
131