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6 years ago
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# Copyright 2017, David Wilson
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# 3. Neither the name of the copyright holder nor the names of its contributors
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# may be used to endorse or promote products derived from this software without
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# specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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import os.path
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import sys
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try:
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import ansible_mitogen.connection
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except ImportError:
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base_dir = os.path.dirname(__file__)
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sys.path.insert(0, os.path.abspath(os.path.join(base_dir, '../../..')))
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del base_dir
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import ansible_mitogen.connection
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class Connection(ansible_mitogen.connection.Connection):
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transport = 'mitogen_doas'
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@ -0,0 +1,118 @@
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# Copyright 2017, David Wilson
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# 3. Neither the name of the copyright holder nor the names of its contributors
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# may be used to endorse or promote products derived from this software without
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# specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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import logging
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import os
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import mitogen.core
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import mitogen.parent
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from mitogen.core import b
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LOG = logging.getLogger(__name__)
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class PasswordError(mitogen.core.StreamError):
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pass
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class Stream(mitogen.parent.Stream):
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create_child = staticmethod(mitogen.parent.hybrid_tty_create_child)
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child_is_immediate_subprocess = False
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#: Once connected, points to the corresponding TtyLogStream, allowing it to
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#: be disconnected at the same time this stream is being torn down.
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tty_stream = None
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username = 'root'
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password = None
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doas_path = 'doas'
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password_prompt = b('Password:')
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incorrect_prompts = (
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b('doas: authentication failed'),
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)
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def construct(self, username=None, password=None, doas_path=None,
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password_prompt=None, incorrect_prompts=None, **kwargs):
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super(Stream, self).construct(**kwargs)
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if username is not None:
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self.username = username
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if password is not None:
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self.password = password
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if doas_path is not None:
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self.doas_path = doas_path
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if password_prompt is not None:
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self.password_prompt = password_prompt.lower()
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if incorrect_prompts is not None:
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self.incorrect_prompts = map(str.lower, incorrect_prompts)
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def connect(self):
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super(Stream, self).connect()
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self.name = u'doas.' + mitogen.core.to_text(self.username)
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def on_disconnect(self, broker):
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self.tty_stream.on_disconnect(broker)
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super(Stream, self).on_disconnect(broker)
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def get_boot_command(self):
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bits = [self.doas_path, '-u', self.username, '--']
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bits = bits + super(Stream, self).get_boot_command()
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LOG.debug('doas command line: %r', bits)
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return bits
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password_incorrect_msg = 'doas password is incorrect'
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password_required_msg = 'doas password is required'
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def _connect_bootstrap(self, extra_fd):
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self.tty_stream = mitogen.parent.TtyLogStream(extra_fd, self)
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password_sent = False
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it = mitogen.parent.iter_read(
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fds=[self.receive_side.fd, extra_fd],
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deadline=self.connect_deadline,
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)
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for buf in it:
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LOG.debug('%r: received %r', self, buf)
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if buf.endswith(self.EC0_MARKER):
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self._ec0_received()
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return
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if any(s in buf.lower() for s in self.incorrect_prompts):
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if password_sent:
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raise PasswordError(self.password_incorrect_msg)
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elif self.password_prompt in buf.lower():
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if self.password is None:
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raise PasswordError(self.password_required_msg)
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if password_sent:
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raise PasswordError(self.password_incorrect_msg)
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LOG.debug('sending password')
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self.tty_stream.transmit_side.write(
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mitogen.core.to_text(self.password + '\n').encode('utf-8')
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)
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password_sent = True
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raise mitogen.core.StreamError('bootstrap failed')
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@ -0,0 +1,21 @@
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This banner tests Mitogen's ability to differentiate the word 'password'
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appearing in a login banner, and 'password' appearing in a password prompt.
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This system is for the use of authorized users only. Individuals using this
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computer system without authority or in excess of their authority are subject
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to having all of their activities on this system monitored and recorded by
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system personnel.
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In the course of monitoring this system with regard to any unauthorized or
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improper use or in the course of system maintenance the system personnel may
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have insights into regular business activity.
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Anyone using this system expressly consents to such monitoring and is advised
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that if such monitoring reveals possible evidence of improper activity, system
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personnel may provide the evidence of such monitoring to internal Compliance
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and Security Officers who will - in the case of criminal offences - relay such
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incidents to law enforcement officials.
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**************************************************************
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NOTE: This system is connected to DOMAIN.COM,
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please use your password.
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