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* Remove mypy job for Python 2 modified: tox.ini * Remove Python 2 compatibility import modified: ssh-audit.py * Remove compatibility import for BytesIO and StringIO This is no longer necessary, as support for Python 2 was dropped. modified: ssh-audit.py * Remove `text-type` compatibility layer ... as support for Python 2 was dropped already. modified: ssh-audit.py * Remove `binary-type` compatibility layer ... as support for Python 2 was dropped already. modified: ssh-audit.py * Remove try-except block for typing ... as since Python 3.5 it is included in the standard library. modified: ssh-audit.py * Move typing import to top of module modified: ssh-audit.py * Remove obsolete encoding declaration modified: ssh-audit.py * Apply pyupgrade on ssh-audit.py pyupgrade is a tool which updates Python code to modern syntax modified: ssh-audit.py * Remove Python 2 compatibility from conftest.py modified: test/conftest.py * Remove Python 2 compatibility from test_auditconf.py modified: test/test_auditconf.py * Remove Python 2 compatibility from test_banner.py modified: test/test_banner.py * Remove Python 2 compatibility from test_buffer.py modified: test/test_buffer.py * Remove Python 2 compatibility from test_errors.py modified: test/test_errors.py * Remove Python 2 compatibility from test_output.py modified: test/test_output.py * Remove Python 2 compatibility from test_resolve.py modified: test/test_resolve.py * Remove Python 2 compatibility from test_socket.py modified: test/test_socket.py * Remove Python 2 compatibility from test_software.py modified: test/test_software.py * Remove Python 2 compatibility from test_ssh_algorithm.py modified: test/test_ssh_algorithm.py * Remove Python 2 compatibility from test_ssh1.py modified: test/test_ssh1.py * Remove Python 2 compatibility from test_ssh2.py modified: test/test_ssh2.py * Remove Python 2 compatibility and Py2 only tests ... from test_utils.py. modified: test/test_utils.py * Remove Python 2 compatibility from test_version_compare.py modified: test/test_version_compare.py * Remove Python 2 job from appveyor config This was done blindly, as it is unclear whether appveyor runs at all. modified: .appveyor.yml
160 lines
6.4 KiB
Python
160 lines
6.4 KiB
Python
import socket
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import errno
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import pytest
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# pylint: disable=attribute-defined-outside-init
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class TestErrors:
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@pytest.fixture(autouse=True)
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def init(self, ssh_audit):
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self.AuditConf = ssh_audit.AuditConf
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self.audit = ssh_audit.audit
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def _conf(self):
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conf = self.AuditConf('localhost', 22)
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conf.colors = False
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conf.batch = True
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return conf
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def _audit(self, spy, conf=None, sysexit=True):
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if conf is None:
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conf = self._conf()
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spy.begin()
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if sysexit:
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with pytest.raises(SystemExit):
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self.audit(conf)
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else:
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self.audit(conf)
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lines = spy.flush()
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return lines
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def test_connection_unresolved(self, output_spy, virtual_socket):
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vsocket = virtual_socket
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vsocket.gsock.addrinfodata['localhost#22'] = []
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lines = self._audit(output_spy)
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assert len(lines) == 1
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assert 'has no DNS records' in lines[-1]
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def test_connection_refused(self, output_spy, virtual_socket):
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vsocket = virtual_socket
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vsocket.errors['connect'] = socket.error(errno.ECONNREFUSED, 'Connection refused')
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lines = self._audit(output_spy)
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assert len(lines) == 1
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assert 'Connection refused' in lines[-1]
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def test_connection_timeout(self, output_spy, virtual_socket):
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vsocket = virtual_socket
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vsocket.errors['connect'] = socket.timeout('timed out')
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lines = self._audit(output_spy)
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assert len(lines) == 1
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assert 'timed out' in lines[-1]
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def test_recv_empty(self, output_spy, virtual_socket):
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lines = self._audit(output_spy)
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assert len(lines) == 1
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assert 'did not receive banner' in lines[-1]
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def test_recv_timeout(self, output_spy, virtual_socket):
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vsocket = virtual_socket
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vsocket.rdata.append(socket.timeout('timed out'))
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lines = self._audit(output_spy)
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assert len(lines) == 1
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assert 'did not receive banner' in lines[-1]
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assert 'timed out' in lines[-1]
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def test_recv_retry_till_timeout(self, output_spy, virtual_socket):
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vsocket = virtual_socket
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vsocket.rdata.append(socket.error(errno.EAGAIN, 'Resource temporarily unavailable'))
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vsocket.rdata.append(socket.error(errno.EWOULDBLOCK, 'Resource temporarily unavailable'))
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vsocket.rdata.append(socket.error(errno.EAGAIN, 'Resource temporarily unavailable'))
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vsocket.rdata.append(socket.timeout('timed out'))
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lines = self._audit(output_spy)
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assert len(lines) == 1
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assert 'did not receive banner' in lines[-1]
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assert 'timed out' in lines[-1]
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def test_recv_retry_till_reset(self, output_spy, virtual_socket):
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vsocket = virtual_socket
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vsocket.rdata.append(socket.error(errno.EAGAIN, 'Resource temporarily unavailable'))
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vsocket.rdata.append(socket.error(errno.EWOULDBLOCK, 'Resource temporarily unavailable'))
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vsocket.rdata.append(socket.error(errno.EAGAIN, 'Resource temporarily unavailable'))
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vsocket.rdata.append(socket.error(errno.ECONNRESET, 'Connection reset by peer'))
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lines = self._audit(output_spy)
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assert len(lines) == 1
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assert 'did not receive banner' in lines[-1]
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assert 'reset by peer' in lines[-1]
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def test_connection_closed_before_banner(self, output_spy, virtual_socket):
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vsocket = virtual_socket
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vsocket.rdata.append(socket.error(errno.ECONNRESET, 'Connection reset by peer'))
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lines = self._audit(output_spy)
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assert len(lines) == 1
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assert 'did not receive banner' in lines[-1]
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assert 'reset by peer' in lines[-1]
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def test_connection_closed_after_header(self, output_spy, virtual_socket):
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vsocket = virtual_socket
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vsocket.rdata.append(b'header line 1\n')
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vsocket.rdata.append(b'\n')
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vsocket.rdata.append(b'header line 2\n')
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vsocket.rdata.append(socket.error(errno.ECONNRESET, 'Connection reset by peer'))
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lines = self._audit(output_spy)
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assert len(lines) == 3
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assert 'did not receive banner' in lines[-1]
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assert 'reset by peer' in lines[-1]
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def test_connection_closed_after_banner(self, output_spy, virtual_socket):
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vsocket = virtual_socket
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vsocket.rdata.append(b'SSH-2.0-ssh-audit-test\r\n')
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vsocket.rdata.append(socket.error(54, 'Connection reset by peer'))
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lines = self._audit(output_spy)
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assert len(lines) == 2
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assert 'error reading packet' in lines[-1]
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assert 'reset by peer' in lines[-1]
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def test_empty_data_after_banner(self, output_spy, virtual_socket):
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vsocket = virtual_socket
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vsocket.rdata.append(b'SSH-2.0-ssh-audit-test\r\n')
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lines = self._audit(output_spy)
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assert len(lines) == 2
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assert 'error reading packet' in lines[-1]
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assert 'empty' in lines[-1]
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def test_wrong_data_after_banner(self, output_spy, virtual_socket):
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vsocket = virtual_socket
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vsocket.rdata.append(b'SSH-2.0-ssh-audit-test\r\n')
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vsocket.rdata.append(b'xxx\n')
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lines = self._audit(output_spy)
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assert len(lines) == 2
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assert 'error reading packet' in lines[-1]
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assert 'xxx' in lines[-1]
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def test_non_ascii_banner(self, output_spy, virtual_socket):
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vsocket = virtual_socket
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vsocket.rdata.append(b'SSH-2.0-ssh-audit-test\xc3\xbc\r\n')
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lines = self._audit(output_spy)
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assert len(lines) == 3
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assert 'error reading packet' in lines[-1]
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assert 'ASCII' in lines[-2]
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assert lines[-3].endswith('SSH-2.0-ssh-audit-test?')
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def test_nonutf8_data_after_banner(self, output_spy, virtual_socket):
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vsocket = virtual_socket
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vsocket.rdata.append(b'SSH-2.0-ssh-audit-test\r\n')
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vsocket.rdata.append(b'\x81\xff\n')
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lines = self._audit(output_spy)
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assert len(lines) == 2
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assert 'error reading packet' in lines[-1]
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assert '\\x81\\xff' in lines[-1]
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def test_protocol_mismatch_by_conf(self, output_spy, virtual_socket):
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vsocket = virtual_socket
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vsocket.rdata.append(b'SSH-1.3-ssh-audit-test\r\n')
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vsocket.rdata.append(b'Protocol major versions differ.\n')
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conf = self._conf()
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conf.ssh1, conf.ssh2 = True, False
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lines = self._audit(output_spy, conf)
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assert len(lines) == 3
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assert 'error reading packet' in lines[-1]
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assert 'major versions differ' in lines[-1]
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