import netrc, os, unittest, sys, tempfile, textwrap from unittest import mock from test import support class NetrcTestCase(unittest.TestCase): def make_nrc(self, test_data): test_data = textwrap.dedent(test_data) mode = 'w' if sys.platform != 'cygwin': mode += 't' temp_fd, temp_filename = tempfile.mkstemp() with os.fdopen(temp_fd, mode=mode) as fp: fp.write(test_data) self.addCleanup(os.unlink, temp_filename) return netrc.netrc(temp_filename) def test_default(self): nrc = self.make_nrc("""\ machine host1.domain.com login log1 password pass1 account acct1 default login log2 password pass2 """) self.assertEqual(nrc.hosts['host1.domain.com'], ('log1', 'acct1', 'pass1')) self.assertEqual(nrc.hosts['default'], ('log2', None, 'pass2')) nrc2 = self.make_nrc(nrc.__repr__()) self.assertEqual(nrc.hosts, nrc2.hosts) def test_macros(self): nrc = self.make_nrc("""\ macdef macro1 line1 line2 macdef macro2 line3 line4 """) self.assertEqual(nrc.macros, {'macro1': ['line1\n', 'line2\n'], 'macro2': ['line3\n', 'line4\n']}) def _test_passwords(self, nrc, passwd): nrc = self.make_nrc(nrc) self.assertEqual(nrc.hosts['host.domain.com'], ('log', 'acct', passwd)) def test_password_with_leading_hash(self): self._test_passwords("""\ machine host.domain.com login log password #pass account acct """, '#pass') def test_password_with_trailing_hash(self): self._test_passwords("""\ machine host.domain.com login log password pass# account acct """, 'pass#') def test_password_with_internal_hash(self): self._test_passwords("""\ machine host.domain.com login log password pa#ss account acct """, 'pa#ss') def _test_comment(self, nrc, passwd='pass'): nrc = self.make_nrc(nrc) self.assertEqual(nrc.hosts['foo.domain.com'], ('bar', None, passwd)) self.assertEqual(nrc.hosts['bar.domain.com'], ('foo', None, 'pass')) def test_comment_before_machine_line(self): self._test_comment("""\ # comment machine foo.domain.com login bar password pass machine bar.domain.com login foo password pass """) def test_comment_before_machine_line_no_space(self): self._test_comment("""\ #comment machine foo.domain.com login bar password pass machine bar.domain.com login foo password pass """) def test_comment_before_machine_line_hash_only(self): self._test_comment("""\ # machine foo.domain.com login bar password pass machine bar.domain.com login foo password pass """) def test_comment_at_end_of_machine_line(self): self._test_comment("""\ machine foo.domain.com login bar password pass # comment machine bar.domain.com login foo password pass """) def test_comment_at_end_of_machine_line_no_space(self): self._test_comment("""\ machine foo.domain.com login bar password pass #comment machine bar.domain.com login foo password pass """) def test_comment_at_end_of_machine_line_pass_has_hash(self): self._test_comment("""\ machine foo.domain.com login bar password #pass #comment machine bar.domain.com login foo password pass """, '#pass') @unittest.skipUnless(os.name == 'posix', 'POSIX only test') def test_security(self): # This test is incomplete since we are normally not run as root and # therefore can't test the file ownership being wrong. d = support.TESTFN os.mkdir(d) self.addCleanup(support.rmtree, d) fn = os.path.join(d, '.netrc') with open(fn, 'wt') as f: f.write("""\ machine foo.domain.com login bar password pass default login foo password pass """) with support.EnvironmentVarGuard() as environ: environ.set('HOME', d) os.chmod(fn, 0o600) nrc = netrc.netrc() self.assertEqual(nrc.hosts['foo.domain.com'], ('bar', None, 'pass')) os.chmod(fn, 0o622) self.assertRaises(netrc.NetrcParseError, netrc.netrc) def test_file_not_found_in_home(self): d = support.TESTFN os.mkdir(d) self.addCleanup(support.rmtree, d) with support.EnvironmentVarGuard() as environ: environ.set('HOME', d) self.assertRaises(FileNotFoundError, netrc.netrc) def test_file_not_found_explicit(self): self.assertRaises(FileNotFoundError, netrc.netrc, file='unlikely_netrc') def test_home_not_set(self): fake_home = support.TESTFN os.mkdir(fake_home) self.addCleanup(support.rmtree, fake_home) fake_netrc_path = os.path.join(fake_home, '.netrc') with open(fake_netrc_path, 'w') as f: f.write('machine foo.domain.com login bar password pass') os.chmod(fake_netrc_path, 0o600) orig_expanduser = os.path.expanduser called = [] def fake_expanduser(s): called.append(s) with support.EnvironmentVarGuard() as environ: environ.set('HOME', fake_home) result = orig_expanduser(s) return result with support.swap_attr(os.path, 'expanduser', fake_expanduser): nrc = netrc.netrc() login, account, password = nrc.authenticators('foo.domain.com') self.assertEqual(login, 'bar') self.assertTrue(called) if __name__ == "__main__": unittest.main()