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import netrc, os, unittest, sys, tempfile, textwrap
from test import support
from test.support import os_helper
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.
with os_helper.temp_cwd(None) as 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 os_helper.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):
with os_helper.temp_cwd(None) as d:
with os_helper.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):
with os_helper.temp_cwd(None) as 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 os_helper.EnvironmentVarGuard() as environ:
environ.set('HOME', fake_home)
environ.set('USERPROFILE', 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()
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