111 lines
3.9 KiB
Python
111 lines
3.9 KiB
Python
#
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# (c) 2016 Red Hat Inc.
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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#
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from __future__ import absolute_import, division, print_function
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__metaclass__ = type
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import re
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import json
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from ansible.plugins.terminal import TerminalBase
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from ansible.errors import AnsibleConnectionFailure
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from ansible.module_utils._text import to_bytes, to_text
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class TerminalModule(TerminalBase):
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terminal_stdout_re = [
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re.compile(br"[\r\n]?[\w+\-\.:\/\[\]]+(?:\([^\)]+\)){,3}(?:>|#) ?$"),
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re.compile(br"\[\w+\@[\w\-\.]+(?: [^\]])\] ?[>#\$] ?$"),
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]
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terminal_stderr_re = [
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re.compile(br"% ?Error"),
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# re.compile(br"^% \w+", re.M),
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re.compile(br"% User not present"),
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re.compile(br"% ?Bad secret"),
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re.compile(br"invalid input", re.I),
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re.compile(br"(?:incomplete|ambiguous) command", re.I),
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re.compile(br"connection timed out", re.I),
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# Strings like this regarding VLANs are not errors
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re.compile(br"[^\r\n]+ not found(?! in current VLAN)", re.I),
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re.compile(br"'[^']' +returned error code: ?\d+"),
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re.compile(br"[^\r\n](?<! shell )\/bin\/(?:ba)?sh"),
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re.compile(br"% More than \d+ OSPF instance", re.I),
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re.compile(br"% Subnet [0-9a-f.:/]+ overlaps", re.I),
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re.compile(br"Maximum number of pending sessions has been reached"),
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re.compile(br"% Prefix length must be less than"),
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# returned in response to 'channel-group <name> mode <mode>'
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re.compile(
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br"% Cannot change mode; remove all members and try again."
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),
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]
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terminal_config_prompt = re.compile(r"^.+\(config(-.*)?\)#$")
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def on_open_shell(self):
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try:
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for cmd in (b"terminal length 0", b"terminal width 512"):
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self._exec_cli_command(cmd)
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except AnsibleConnectionFailure:
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raise AnsibleConnectionFailure("unable to set terminal parameters")
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def on_become(self, passwd=None):
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if self._get_prompt().endswith(b"#"):
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return
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cmd = {u"command": u"enable"}
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if passwd:
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cmd[u"prompt"] = to_text(
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r"[\r\n]?[Pp]assword: $", errors="surrogate_or_strict"
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)
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cmd[u"answer"] = passwd
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cmd[u"prompt_retry_check"] = True
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try:
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self._exec_cli_command(
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to_bytes(json.dumps(cmd), errors="surrogate_or_strict")
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)
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prompt = self._get_prompt()
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if prompt is None or not prompt.endswith(b"#"):
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raise AnsibleConnectionFailure(
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"failed to elevate privilege to enable mode still at prompt [%s]"
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% prompt
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)
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except AnsibleConnectionFailure as e:
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prompt = self._get_prompt()
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raise AnsibleConnectionFailure(
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"unable to elevate privilege to enable mode, at prompt [%s] with error: %s"
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% (prompt, e.message)
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)
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def on_unbecome(self):
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prompt = self._get_prompt()
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if prompt is None:
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# if prompt is None most likely the terminal is hung up at a prompt
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return
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if b"(config" in prompt:
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self._exec_cli_command(b"end")
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self._exec_cli_command(b"disable")
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elif prompt.endswith(b"#"):
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self._exec_cli_command(b"disable")
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