python/jc
1
0
Fork 0
mirror of https://github.com/kellyjonbrazil/jc.git synced 2025-07-15 01:24:29 +02:00
Code Issues Releases Activity

use derivative of sshd_conf parser instead of paramiko

Browse Source
This commit is contained in:
Kelly Brazil
2023-01-22 10:36:29 -08:00
parent dbfe682674
commit f8fbb2dce2
7 changed files with 578 additions and 1446 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
CHANGELOG
View File

@ -1,8 +1,9 @@
jc changelog jc changelog
20230121 v1.23.0 20230122 v1.23.0
- Add ssh_conf file parser - Add `ssh` configuration file parser
- Add input slicing - Add input slicing
- Fix `acpi` command parser for "will never fully discharge" battery state
20230111 v1.22.5 20230111 v1.22.5
- Add TOML file parser - Add TOML file parser

504
jc/parsers/paramiko/LICENSE
View File

@ -1,504 +0,0 @@
GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999
Copyright (C) 1991, 1999 Free Software Foundation, Inc.
51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
[This is the first released version of the Lesser GPL. It also counts
as the successor of the GNU Library Public License, version 2, hence
the version number 2.1.]
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
Licenses are intended to guarantee your freedom to share and change
free software--to make sure the software is free for all its users.
This license, the Lesser General Public License, applies to some
specially designated software packages--typically libraries--of the
Free Software Foundation and other authors who decide to use it. You
can use it too, but we suggest you first think carefully about whether
this license or the ordinary General Public License is the better
strategy to use in any particular case, based on the explanations below.
When we speak of free software, we are referring to freedom of use,
not price. Our General Public Licenses are designed to make sure that
you have the freedom to distribute copies of free software (and charge
for this service if you wish); that you receive source code or can get
it if you want it; that you can change the software and use pieces of
it in new free programs; and that you are informed that you can do
these things.
To protect your rights, we need to make restrictions that forbid
distributors to deny you these rights or to ask you to surrender these
rights. These restrictions translate to certain responsibilities for
you if you distribute copies of the library or if you modify it.
For example, if you distribute copies of the library, whether gratis
or for a fee, you must give the recipients all the rights that we gave
you. You must make sure that they, too, receive or can get the source
code. If you link other code with the library, you must provide
complete object files to the recipients, so that they can relink them
with the library after making changes to the library and recompiling
it. And you must show them these terms so they know their rights.
We protect your rights with a two-step method: (1) we copyright the
library, and (2) we offer you this license, which gives you legal
permission to copy, distribute and/or modify the library.
To protect each distributor, we want to make it very clear that
there is no warranty for the free library. Also, if the library is
modified by someone else and passed on, the recipients should know
that what they have is not the original version, so that the original
author's reputation will not be affected by problems that might be
introduced by others.
Finally, software patents pose a constant threat to the existence of
any free program. We wish to make sure that a company cannot
effectively restrict the users of a free program by obtaining a
restrictive license from a patent holder. Therefore, we insist that
any patent license obtained for a version of the library must be
consistent with the full freedom of use specified in this license.
Most GNU software, including some libraries, is covered by the
ordinary GNU General Public License. This license, the GNU Lesser
General Public License, applies to certain designated libraries, and
is quite different from the ordinary General Public License. We use
this license for certain libraries in order to permit linking those
libraries into non-free programs.
When a program is linked with a library, whether statically or using
a shared library, the combination of the two is legally speaking a
combined work, a derivative of the original library. The ordinary
General Public License therefore permits such linking only if the
entire combination fits its criteria of freedom. The Lesser General
Public License permits more lax criteria for linking other code with
the library.
We call this license the "Lesser" General Public License because it
does Less to protect the user's freedom than the ordinary General
Public License. It also provides other free software developers Less
of an advantage over competing non-free programs. These disadvantages
are the reason we use the ordinary General Public License for many
libraries. However, the Lesser license provides advantages in certain
special circumstances.
For example, on rare occasions, there may be a special need to
encourage the widest possible use of a certain library, so that it becomes
a de-facto standard. To achieve this, non-free programs must be
allowed to use the library. A more frequent case is that a free
library does the same job as widely used non-free libraries. In this
case, there is little to gain by limiting the free library to free
software only, so we use the Lesser General Public License.
In other cases, permission to use a particular library in non-free
programs enables a greater number of people to use a large body of
free software. For example, permission to use the GNU C Library in
non-free programs enables many more people to use the whole GNU
operating system, as well as its variant, the GNU/Linux operating
system.
Although the Lesser General Public License is Less protective of the
users' freedom, it does ensure that the user of a program that is
linked with the Library has the freedom and the wherewithal to run
that program using a modified version of the Library.
The precise terms and conditions for copying, distribution and
modification follow. Pay close attention to the difference between a
"work based on the library" and a "work that uses the library". The
former contains code derived from the library, whereas the latter must
be combined with the library in order to run.
GNU LESSER GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License Agreement applies to any software library or other
program which contains a notice placed by the copyright holder or
other authorized party saying it may be distributed under the terms of
this Lesser General Public License (also called "this License").
Each licensee is addressed as "you".
A "library" means a collection of software functions and/or data
prepared so as to be conveniently linked with application programs
(which use some of those functions and data) to form executables.
The "Library", below, refers to any such software library or work
which has been distributed under these terms. A "work based on the
Library" means either the Library or any derivative work under
copyright law: that is to say, a work containing the Library or a
portion of it, either verbatim or with modifications and/or translated
straightforwardly into another language. (Hereinafter, translation is
included without limitation in the term "modification".)
"Source code" for a work means the preferred form of the work for
making modifications to it. For a library, complete source code means
all the source code for all modules it contains, plus any associated
interface definition files, plus the scripts used to control compilation
and installation of the library.
Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope. The act of
running a program using the Library is not restricted, and output from
such a program is covered only if its contents constitute a work based
on the Library (independent of the use of the Library in a tool for
writing it). Whether that is true depends on what the Library does
and what the program that uses the Library does.
1. You may copy and distribute verbatim copies of the Library's
complete source code as you receive it, in any medium, provided that
you conspicuously and appropriately publish on each copy an
appropriate copyright notice and disclaimer of warranty; keep intact
all the notices that refer to this License and to the absence of any
warranty; and distribute a copy of this License along with the
Library.
You may charge a fee for the physical act of transferring a copy,
and you may at your option offer warranty protection in exchange for a
fee.
2. You may modify your copy or copies of the Library or any portion
of it, thus forming a work based on the Library, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:
a) The modified work must itself be a software library.
b) You must cause the files modified to carry prominent notices
stating that you changed the files and the date of any change.
c) You must cause the whole of the work to be licensed at no
charge to all third parties under the terms of this License.
d) If a facility in the modified Library refers to a function or a
table of data to be supplied by an application program that uses
the facility, other than as an argument passed when the facility
is invoked, then you must make a good faith effort to ensure that,
in the event an application does not supply such function or
table, the facility still operates, and performs whatever part of
its purpose remains meaningful.
(For example, a function in a library to compute square roots has
a purpose that is entirely well-defined independent of the
application. Therefore, Subsection 2d requires that any
application-supplied function or table used by this function must
be optional: if the application does not supply it, the square
root function must still compute square roots.)
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Library,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works. But when you
distribute the same sections as part of a whole which is a work based
on the Library, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote
it.
Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Library.
In addition, mere aggregation of another work not based on the Library
with the Library (or with a work based on the Library) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.
3. You may opt to apply the terms of the ordinary GNU General Public
License instead of this License to a given copy of the Library. To do
this, you must alter all the notices that refer to this License, so
that they refer to the ordinary GNU General Public License, version 2,
instead of to this License. (If a newer version than version 2 of the
ordinary GNU General Public License has appeared, then you can specify
that version instead if you wish.) Do not make any other change in
these notices.
Once this change is made in a given copy, it is irreversible for
that copy, so the ordinary GNU General Public License applies to all
subsequent copies and derivative works made from that copy.
This option is useful when you wish to copy part of the code of
the Library into a program that is not a library.
4. You may copy and distribute the Library (or a portion or
derivative of it, under Section 2) in object code or executable form
under the terms of Sections 1 and 2 above provided that you accompany
it with the complete corresponding machine-readable source code, which
must be distributed under the terms of Sections 1 and 2 above on a
medium customarily used for software interchange.
If distribution of object code is made by offering access to copy
from a designated place, then offering equivalent access to copy the
source code from the same place satisfies the requirement to
distribute the source code, even though third parties are not
compelled to copy the source along with the object code.
5. A program that contains no derivative of any portion of the
Library, but is designed to work with the Library by being compiled or
linked with it, is called a "work that uses the Library". Such a
work, in isolation, is not a derivative work of the Library, and
therefore falls outside the scope of this License.
However, linking a "work that uses the Library" with the Library
creates an executable that is a derivative of the Library (because it
contains portions of the Library), rather than a "work that uses the
library". The executable is therefore covered by this License.
Section 6 states terms for distribution of such executables.
When a "work that uses the Library" uses material from a header file
that is part of the Library, the object code for the work may be a
derivative work of the Library even though the source code is not.
Whether this is true is especially significant if the work can be
linked without the Library, or if the work is itself a library. The
threshold for this to be true is not precisely defined by law.
If such an object file uses only numerical parameters, data
structure layouts and accessors, and small macros and small inline
functions (ten lines or less in length), then the use of the object
file is unrestricted, regardless of whether it is legally a derivative
work. (Executables containing this object code plus portions of the
Library will still fall under Section 6.)
Otherwise, if the work is a derivative of the Library, you may
distribute the object code for the work under the terms of Section 6.
Any executables containing that work also fall under Section 6,
whether or not they are linked directly with the Library itself.
6. As an exception to the Sections above, you may also combine or
link a "work that uses the Library" with the Library to produce a
work containing portions of the Library, and distribute that work
under terms of your choice, provided that the terms permit
modification of the work for the customer's own use and reverse
engineering for debugging such modifications.
You must give prominent notice with each copy of the work that the
Library is used in it and that the Library and its use are covered by
this License. You must supply a copy of this License. If the work
during execution displays copyright notices, you must include the
copyright notice for the Library among them, as well as a reference
directing the user to the copy of this License. Also, you must do one
of these things:
a) Accompany the work with the complete corresponding
machine-readable source code for the Library including whatever
changes were used in the work (which must be distributed under
Sections 1 and 2 above); and, if the work is an executable linked
with the Library, with the complete machine-readable "work that
uses the Library", as object code and/or source code, so that the
user can modify the Library and then relink to produce a modified
executable containing the modified Library. (It is understood
that the user who changes the contents of definitions files in the
Library will not necessarily be able to recompile the application
to use the modified definitions.)
b) Use a suitable shared library mechanism for linking with the
Library. A suitable mechanism is one that (1) uses at run time a
copy of the library already present on the user's computer system,
rather than copying library functions into the executable, and (2)
will operate properly with a modified version of the library, if
the user installs one, as long as the modified version is
interface-compatible with the version that the work was made with.
c) Accompany the work with a written offer, valid for at
least three years, to give the same user the materials
specified in Subsection 6a, above, for a charge no more
than the cost of performing this distribution.
d) If distribution of the work is made by offering access to copy
from a designated place, offer equivalent access to copy the above
specified materials from the same place.
e) Verify that the user has already received a copy of these
materials or that you have already sent this user a copy.
For an executable, the required form of the "work that uses the
Library" must include any data and utility programs needed for
reproducing the executable from it. However, as a special exception,
the materials to be distributed need not include anything that is
normally distributed (in either source or binary form) with the major
components (compiler, kernel, and so on) of the operating system on
which the executable runs, unless that component itself accompanies
the executable.
It may happen that this requirement contradicts the license
restrictions of other proprietary libraries that do not normally
accompany the operating system. Such a contradiction means you cannot
use both them and the Library together in an executable that you
distribute.
7. You may place library facilities that are a work based on the
Library side-by-side in a single library together with other library
facilities not covered by this License, and distribute such a combined
library, provided that the separate distribution of the work based on
the Library and of the other library facilities is otherwise
permitted, and provided that you do these two things:
a) Accompany the combined library with a copy of the same work
based on the Library, uncombined with any other library
facilities. This must be distributed under the terms of the
Sections above.
b) Give prominent notice with the combined library of the fact
that part of it is a work based on the Library, and explaining
where to find the accompanying uncombined form of the same work.
8. You may not copy, modify, sublicense, link with, or distribute
the Library except as expressly provided under this License. Any
attempt otherwise to copy, modify, sublicense, link with, or
distribute the Library is void, and will automatically terminate your
rights under this License. However, parties who have received copies,
or rights, from you under this License will not have their licenses
terminated so long as such parties remain in full compliance.
9. You are not required to accept this License, since you have not
signed it. However, nothing else grants you permission to modify or
distribute the Library or its derivative works. These actions are
prohibited by law if you do not accept this License. Therefore, by
modifying or distributing the Library (or any work based on the
Library), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Library or works based on it.
10. Each time you redistribute the Library (or any work based on the
Library), the recipient automatically receives a license from the
original licensor to copy, distribute, link with or modify the Library
subject to these terms and conditions. You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties with
this License.
11. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Library at all. For example, if a patent
license would not permit royalty-free redistribution of the Library by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Library.
If any portion of this section is held invalid or unenforceable under any
particular circumstance, the balance of the section is intended to apply,
and the section as a whole is intended to apply in other circumstances.
It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
12. If the distribution and/or use of the Library is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Library under this License may add
an explicit geographical distribution limitation excluding those countries,
so that distribution is permitted only in or among countries not thus
excluded. In such case, this License incorporates the limitation as if
written in the body of this License.
13. The Free Software Foundation may publish revised and/or new
versions of the Lesser General Public License from time to time.
Such new versions will be similar in spirit to the present version,
but may differ in detail to address new problems or concerns.
Each version is given a distinguishing version number. If the Library
specifies a version number of this License which applies to it and
"any later version", you have the option of following the terms and
conditions either of that version or of any later version published by
the Free Software Foundation. If the Library does not specify a
license version number, you may choose any version ever published by
the Free Software Foundation.
14. If you wish to incorporate parts of the Library into other free
programs whose distribution conditions are incompatible with these,
write to the author to ask for permission. For software which is
copyrighted by the Free Software Foundation, write to the Free
Software Foundation; we sometimes make exceptions for this. Our
decision will be guided by the two goals of preserving the free status
of all derivatives of our free software and of promoting the sharing
and reuse of software generally.
NO WARRANTY
15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY
KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Libraries
If you develop a new library, and you want it to be of the greatest
possible use to the public, we recommend making it free software that
everyone can redistribute and change. You can do so by permitting
redistribution under these terms (or, alternatively, under the terms of the
ordinary General Public License).
To apply these terms, attach the following notices to the library. It is
safest to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least the
"copyright" line and a pointer to where the full notice is found.
<one line to give the library's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA
Also add information on how to contact you by electronic and paper mail.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the library, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the
library `Frob' (a library for tweaking knobs) written by James Random Hacker.
<signature of Ty Coon>, 1 April 1990
Ty Coon, President of Vice
That's all there is to it!

0
jc/parsers/paramiko/__init__.py
View File

681
jc/parsers/paramiko/config.py
View File

@ -1,681 +0,0 @@
# Copyright (C) 2006-2007 Robey Pointer <robeypointer@gmail.com>
# Copyright (C) 2012 Olle Lundberg <geek@nerd.sh>
#
# This file is part of paramiko.
#
# Paramiko is free software; you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Paramiko; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
"""
Configuration file (aka ``ssh_config``) support.
"""
# search jc_change for jc fixes
import fnmatch
import getpass
import os
import re
import shlex
import socket
from hashlib import sha1
from io import StringIO
from functools import partial
invoke, invoke_import_error = None, None
try:
import invoke
except ImportError as e:
invoke_import_error = e
from .ssh_exception import CouldNotCanonicalize, ConfigParseError
SSH_PORT = 22
class SSHConfig:
"""
Representation of config information as stored in the format used by
OpenSSH. Queries can be made via `lookup`. The format is described in
OpenSSH's ``ssh_config`` man page. This class is provided primarily as a
convenience to posix users (since the OpenSSH format is a de-facto
standard on posix) but should work fine on Windows too.
.. versionadded:: 1.6
"""
SETTINGS_REGEX = re.compile(r"(\w+)(?:\s*=\s*|\s+)(.+)")
# TODO: do a full scan of ssh.c & friends to make sure we're fully
# compatible across the board, e.g. OpenSSH 8.1 added %n to ProxyCommand.
TOKENS_BY_CONFIG_KEY = {
"controlpath": ["%C", "%h", "%l", "%L", "%n", "%p", "%r", "%u"],
"hostname": ["%h"],
"identityfile": ["%C", "~", "%d", "%h", "%l", "%u", "%r"],
"proxycommand": ["~", "%h", "%p", "%r"],
"proxyjump": ["%h", "%p", "%r"],
# Doesn't seem worth making this 'special' for now, it will fit well
# enough (no actual match-exec config key to be confused with).
"match-exec": ["%C", "%d", "%h", "%L", "%l", "%n", "%p", "%r", "%u"],
}
def __init__(self):
"""
Create a new OpenSSH config object.
Note: the newer alternate constructors `from_path`, `from_file` and
`from_text` are simpler to use, as they parse on instantiation. For
example, instead of::
config = SSHConfig()
config.parse(open("some-path.config")
you could::
config = SSHConfig.from_file(open("some-path.config"))
# Or more directly:
config = SSHConfig.from_path("some-path.config")
# Or if you have arbitrary ssh_config text from some other source:
config = SSHConfig.from_text("Host foo\\n\\tUser bar")
"""
self._config = []
@classmethod
def from_text(cls, text):
"""
Create a new, parsed `SSHConfig` from ``text`` string.
.. versionadded:: 2.7
"""
return cls.from_file(StringIO(text))
@classmethod
def from_path(cls, path):
"""
Create a new, parsed `SSHConfig` from the file found at ``path``.
.. versionadded:: 2.7
"""
with open(path) as flo:
return cls.from_file(flo)
@classmethod
def from_file(cls, flo):
"""
Create a new, parsed `SSHConfig` from file-like object ``flo``.
.. versionadded:: 2.7
"""
obj = cls()
obj.parse(flo)
return obj
def parse(self, file_obj):
"""
Read an OpenSSH config from the given file object.
:param file_obj: a file-like object to read the config file from
"""
# Start out w/ implicit/anonymous global host-like block to hold
# anything not contained by an explicit one.
context = {"host": ["*"], "config": {}}
for line in file_obj:
# Strip any leading or trailing whitespace from the line.
# Refer to https://github.com/paramiko/paramiko/issues/499
line = line.strip()
# Skip blanks, comments
if not line or line.startswith("#"):
continue
# Parse line into key, value
match = re.match(self.SETTINGS_REGEX, line)
if not match:
raise ConfigParseError("Unparsable line {}".format(line))
key = match.group(1).lower()
value = match.group(2)
# Host keyword triggers switch to new block/context
if key in ("host", "match"):
self._config.append(context)
context = {"config": {}}
if key == "host":
# TODO 4.0: make these real objects or at least name this
# "hosts" to acknowledge it's an iterable. (Doing so prior
# to 3.0, despite it being a private API, feels bad -
# surely such an old codebase has folks actually relying on
# these keys.)
context["host"] = self._get_hosts(value)
else:
context["matches"] = self._get_matches(value)
# Special-case for noop ProxyCommands
elif key == "proxycommand" and value.lower() == "none":
# Store 'none' as None - not as a string implying that the
# proxycommand is the literal shell command "none"!
context["config"][key] = None
# All other keywords get stored, directly or via append
else:
if value.startswith('"') and value.endswith('"'):
value = value[1:-1]
# identityfile, localforward, remoteforward keys are special
# cases, since they are allowed to be specified multiple times
# and they should be tried in order of specification.
if key in ["identityfile", "localforward", "remoteforward"]:
if key in context["config"]:
context["config"][key].append(value)
else:
context["config"][key] = [value]
elif key not in context["config"]:
context["config"][key] = value
# Store last 'open' block and we're done
self._config.append(context)
def lookup(self, hostname):
"""
Return a dict (`SSHConfigDict`) of config options for a given hostname.
The host-matching rules of OpenSSH's ``ssh_config`` man page are used:
For each parameter, the first obtained value will be used. The
configuration files contain sections separated by ``Host`` and/or
``Match`` specifications, and that section is only applied for hosts
which match the given patterns or keywords
Since the first obtained value for each parameter is used, more host-
specific declarations should be given near the beginning of the file,
and general defaults at the end.
The keys in the returned dict are all normalized to lowercase (look for
``"port"``, not ``"Port"``. The values are processed according to the
rules for substitution variable expansion in ``ssh_config``.
Finally, please see the docs for `SSHConfigDict` for deeper info on
features such as optional type conversion methods, e.g.::
conf = my_config.lookup('myhost')
assert conf['passwordauthentication'] == 'yes'
assert conf.as_bool('passwordauthentication') is True
.. note::
If there is no explicitly configured ``HostName`` value, it will be
set to the being-looked-up hostname, which is as close as we can
get to OpenSSH's behavior around that particular option.
:param str hostname: the hostname to lookup
.. versionchanged:: 2.5
Returns `SSHConfigDict` objects instead of dict literals.
.. versionchanged:: 2.7
Added canonicalization support.
.. versionchanged:: 2.7
Added ``Match`` support.
"""
# First pass
options = self._lookup(hostname=hostname)
# Inject HostName if it was not set (this used to be done incidentally
# during tokenization, for some reason).
if "hostname" not in options:
options["hostname"] = hostname
# Handle canonicalization
canon = options.get("canonicalizehostname", None) in ("yes", "always")
maxdots = int(options.get("canonicalizemaxdots", 1))
if canon and hostname.count(".") <= maxdots:
# NOTE: OpenSSH manpage does not explicitly state this, but its
# implementation for CanonicalDomains is 'split on any whitespace'.
domains = options["canonicaldomains"].split()
hostname = self.canonicalize(hostname, options, domains)
# Overwrite HostName again here (this is also what OpenSSH does)
options["hostname"] = hostname
options = self._lookup(hostname, options, canonical=True)
return options
def _lookup(self, hostname, options=None, canonical=False):
# Init
if options is None:
options = SSHConfigDict()
# Iterate all stanzas, applying any that match, in turn (so that things
# like Match can reference currently understood state)
for context in self._config:
if not (
self._pattern_matches(context.get("host", []), hostname)
or self._does_match(
context.get("matches", []), hostname, canonical, options
)
):
continue
for key, value in context["config"].items():
if key not in options:
# Create a copy of the original value,
# else it will reference the original list
# in self._config and update that value too
# when the extend() is being called.
options[key] = value[:] if value is not None else value
elif key == "identityfile":
options[key].extend(
x for x in value if x not in options[key]
)
# Expand variables in resulting values (besides 'Match exec' which was
# already handled above)
options = self._expand_variables(options, hostname)
return options
def canonicalize(self, hostname, options, domains):
"""
Return canonicalized version of ``hostname``.
:param str hostname: Target hostname.
:param options: An `SSHConfigDict` from a previous lookup pass.
:param domains: List of domains (e.g. ``["paramiko.org"]``).
:returns: A canonicalized hostname if one was found, else ``None``.
.. versionadded:: 2.7
"""
found = False
for domain in domains:
candidate = "{}.{}".format(hostname, domain)
family_specific = _addressfamily_host_lookup(candidate, options)
if family_specific is not None:
# TODO: would we want to dig deeper into other results? e.g. to
# find something that satisfies PermittedCNAMEs when that is
# implemented?
found = family_specific[0]
else:
# TODO: what does ssh use here and is there a reason to use
# that instead of gethostbyname?
try:
found = socket.gethostbyname(candidate)
except socket.gaierror:
pass
if found:
# TODO: follow CNAME (implied by found != candidate?) if
# CanonicalizePermittedCNAMEs allows it
return candidate
# If we got here, it means canonicalization failed.
# When CanonicalizeFallbackLocal is undefined or 'yes', we just spit
# back the original hostname.
if options.get("canonicalizefallbacklocal", "yes") == "yes":
return hostname
# And here, we failed AND fallback was set to a non-yes value, so we
# need to get mad.
raise CouldNotCanonicalize(hostname)
def get_hostnames(self):
"""
Return the set of literal hostnames defined in the SSH config (both
explicit hostnames and wildcard entries).
"""
hosts = set()
for entry in self._config:
hosts.update(entry["host"])
return hosts
def _pattern_matches(self, patterns, target):
# Convenience auto-splitter if not already a list
if hasattr(patterns, "split"):
patterns = patterns.split(",")
match = False
for pattern in patterns:
# Short-circuit if target matches a negated pattern
if pattern.startswith("!") and fnmatch.fnmatch(
target, pattern[1:]
):
return False
# Flag a match, but continue (in case of later negation) if regular
# match occurs
elif fnmatch.fnmatch(target, pattern):
match = True
return match
def _does_match(self, match_list, target_hostname, canonical, options):
matched = []
candidates = match_list[:]
local_username = getpass.getuser()
while candidates:
candidate = candidates.pop(0)
passed = None
# Obtain latest host/user value every loop, so later Match may
# reference values assigned within a prior Match.
configured_host = options.get("hostname", None)
configured_user = options.get("user", None)
type_, param = candidate["type"], candidate["param"]
# Canonical is a hard pass/fail based on whether this is a
# canonicalized re-lookup.
if type_ == "canonical":
if self._should_fail(canonical, candidate):
return False
# The parse step ensures we only see this by itself or after
# canonical, so it's also an easy hard pass. (No negation here as
# that would be uh, pretty weird?)
elif type_ == "all":
return True
# From here, we are testing various non-hard criteria,
# short-circuiting only on fail
elif type_ == "host":
hostval = configured_host or target_hostname
passed = self._pattern_matches(param, hostval)
elif type_ == "originalhost":
passed = self._pattern_matches(param, target_hostname)
elif type_ == "user":
user = configured_user or local_username
passed = self._pattern_matches(param, user)
elif type_ == "localuser":
passed = self._pattern_matches(param, local_username)
elif type_ == "exec":
exec_cmd = self._tokenize(
options, target_hostname, "match-exec", param
)
# This is the laziest spot in which we can get mad about an
# inability to import Invoke.
if invoke is None:
raise invoke_import_error
# Like OpenSSH, we 'redirect' stdout but let stderr bubble up
passed = invoke.run(exec_cmd, hide="stdout", warn=True).ok
# Tackle any 'passed, but was negated' results from above
if passed is not None and self._should_fail(passed, candidate):
return False
# Made it all the way here? Everything matched!
matched.append(candidate)
# Did anything match? (To be treated as bool, usually.)
return matched
def _should_fail(self, would_pass, candidate):
return would_pass if candidate["negate"] else not would_pass
def _tokenize(self, config, target_hostname, key, value):
"""
Tokenize a string based on current config/hostname data.
:param config: Current config data.
:param target_hostname: Original target connection hostname.
:param key: Config key being tokenized (used to filter token list).
:param value: Config value being tokenized.
:returns: The tokenized version of the input ``value`` string.
"""
allowed_tokens = self._allowed_tokens(key)
# Short-circuit if no tokenization possible
if not allowed_tokens:
return value
# Obtain potentially configured hostname, for use with %h.
# Special-case where we are tokenizing the hostname itself, to avoid
# replacing %h with a %h-bearing value, etc.
configured_hostname = target_hostname
if key != "hostname":
configured_hostname = config.get("hostname", configured_hostname)
# Ditto the rest of the source values
if "port" in config:
port = config["port"]
else:
port = SSH_PORT
user = getpass.getuser()
if "user" in config:
remoteuser = config["user"]
else:
remoteuser = user
local_hostname = socket.gethostname().split(".")[0]
local_fqdn = LazyFqdn(config, local_hostname)
homedir = os.path.expanduser("~")
tohash = local_hostname + target_hostname + repr(port) + remoteuser
# The actual tokens!
replacements = {
# TODO: %%???
# "%C": sha1(tohash.encode()).hexdigest(), # jc_change
# "%d": homedir, # jc_change
"%h": configured_hostname,
# TODO: %i?
# "%L": local_hostname, # jc_change
# "%l": local_fqdn, # jc_change
# also this is pseudo buggy when not in Match exec mode so document
# that. also WHY is that the case?? don't we do all of this late?
"%n": target_hostname,
"%p": port,
"%r": remoteuser,
# TODO: %T? don't believe this is possible however
# "%u": user, # jc_change
# "~": homedir, # jc_change
}
# Do the thing with the stuff
tokenized = value
for find, replace in replacements.items():
if find not in allowed_tokens:
continue
tokenized = tokenized.replace(find, str(replace))
# TODO: log? eg that value -> tokenized
return tokenized
def _allowed_tokens(self, key):
"""
Given config ``key``, return list of token strings to tokenize.
.. note::
This feels like it wants to eventually go away, but is used to
preserve as-strict-as-possible compatibility with OpenSSH, which
for whatever reason only applies some tokens to some config keys.
"""
return self.TOKENS_BY_CONFIG_KEY.get(key, [])
def _expand_variables(self, config, target_hostname):
"""
Return a dict of config options with expanded substitutions
for a given original & current target hostname.
Please refer to :doc:`/api/config` for details.
:param dict config: the currently parsed config
:param str hostname: the hostname whose config is being looked up
"""
for k in config:
if config[k] is None:
continue
tokenizer = partial(self._tokenize, config, target_hostname, k)
if isinstance(config[k], list):
for i, value in enumerate(config[k]):
config[k][i] = tokenizer(value)
else:
config[k] = tokenizer(config[k])
return config
def _get_hosts(self, host):
"""
Return a list of host_names from host value.
"""
try:
return shlex.split(host)
except ValueError:
raise ConfigParseError("Unparsable host {}".format(host))
def _get_matches(self, match):
"""
Parse a specific Match config line into a list-of-dicts for its values.
Performs some parse-time validation as well.
"""
matches = []
tokens = shlex.split(match)
while tokens:
match = {"type": None, "param": None, "negate": False}
type_ = tokens.pop(0)
# Handle per-keyword negation
if type_.startswith("!"):
match["negate"] = True
type_ = type_[1:]
match["type"] = type_
# all/canonical have no params (everything else does)
if type_ in ("all", "canonical"):
matches.append(match)
continue
if not tokens:
raise ConfigParseError(
"Missing parameter to Match '{}' keyword".format(type_)
)
match["param"] = tokens.pop(0)
matches.append(match)
# Perform some (easier to do now than in the middle) validation that is
# better handled here than at lookup time.
keywords = [x["type"] for x in matches]
if "all" in keywords:
allowable = ("all", "canonical")
ok, bad = (
list(filter(lambda x: x in allowable, keywords)),
list(filter(lambda x: x not in allowable, keywords)),
)
err = None
if any(bad):
err = "Match does not allow 'all' mixed with anything but 'canonical'" # noqa
elif "canonical" in ok and ok.index("canonical") > ok.index("all"):
err = "Match does not allow 'all' before 'canonical'"
if err is not None:
raise ConfigParseError(err)
return matches
def _addressfamily_host_lookup(hostname, options):
"""
Try looking up ``hostname`` in an IPv4 or IPv6 specific manner.
This is an odd duck due to needing use in two divergent use cases. It looks
up ``AddressFamily`` in ``options`` and if it is ``inet`` or ``inet6``,
this function uses `socket.getaddrinfo` to perform a family-specific
lookup, returning the result if successful.
In any other situation -- lookup failure, or ``AddressFamily`` being
unspecified or ``any`` -- ``None`` is returned instead and the caller is
expected to do something situation-appropriate like calling
`socket.gethostbyname`.
:param str hostname: Hostname to look up.
:param options: `SSHConfigDict` instance w/ parsed options.
:returns: ``getaddrinfo``-style tuples, or ``None``, depending.
"""
address_family = options.get("addressfamily", "any").lower()
if address_family == "any":
return
try:
family = socket.AF_INET6
if address_family == "inet":
family = socket.AF_INET
return socket.getaddrinfo(
hostname,
None,
family,
socket.SOCK_DGRAM,
socket.IPPROTO_IP,
socket.AI_CANONNAME,
)
except socket.gaierror:
pass
class LazyFqdn:
"""
Returns the host's fqdn on request as string.
"""
def __init__(self, config, host=None):
self.fqdn = None
self.config = config
self.host = host
def __str__(self):
if self.fqdn is None:
#
# If the SSH config contains AddressFamily, use that when
# determining the local host's FQDN. Using socket.getfqdn() from
# the standard library is the most general solution, but can
# result in noticeable delays on some platforms when IPv6 is
# misconfigured or not available, as it calls getaddrinfo with no
# address family specified, so both IPv4 and IPv6 are checked.
#
# Handle specific option
fqdn = None
results = _addressfamily_host_lookup(self.host, self.config)
if results is not None:
for res in results:
af, socktype, proto, canonname, sa = res
if canonname and "." in canonname:
fqdn = canonname
break
# Handle 'any' / unspecified / lookup failure
if fqdn is None:
fqdn = socket.getfqdn()
# Cache
self.fqdn = fqdn
return self.fqdn
class SSHConfigDict(dict):
"""
A dictionary wrapper/subclass for per-host configuration structures.
This class introduces some usage niceties for consumers of `SSHConfig`,
specifically around the issue of variable type conversions: normal value
access yields strings, but there are now methods such as `as_bool` and
`as_int` that yield casted values instead.
For example, given the following ``ssh_config`` file snippet::
Host foo.example.com
PasswordAuthentication no
Compression yes
ServerAliveInterval 60
the following code highlights how you can access the raw strings as well as
usefully Python type-casted versions (recalling that keys are all
normalized to lowercase first)::
my_config = SSHConfig()
my_config.parse(open('~/.ssh/config'))
conf = my_config.lookup('foo.example.com')
assert conf['passwordauthentication'] == 'no'
assert conf.as_bool('passwordauthentication') is False
assert conf['compression'] == 'yes'
assert conf.as_bool('compression') is True
assert conf['serveraliveinterval'] == '60'
assert conf.as_int('serveraliveinterval') == 60
.. versionadded:: 2.5
"""
def as_bool(self, key):
"""
Express given key's value as a boolean type.
Typically, this is used for ``ssh_config``'s pseudo-boolean values
which are either ``"yes"`` or ``"no"``. In such cases, ``"yes"`` yields
``True`` and any other value becomes ``False``.
.. note::
If (for whatever reason) the stored value is already boolean in
nature, it's simply returned.
.. versionadded:: 2.5
"""
val = self[key]
if isinstance(val, bool):
return val
return val.lower() == "yes"
def as_int(self, key):
"""
Express given key's value as an integer, if possible.
This method will raise ``ValueError`` or similar if the value is not
int-appropriate, same as the builtin `int` type.
.. versionadded:: 2.5
"""
return int(self[key])

235
jc/parsers/paramiko/ssh_exception.py
View File

@ -1,235 +0,0 @@
# Copyright (C) 2003-2007 Robey Pointer <robeypointer@gmail.com>
#
# This file is part of paramiko.
#
# Paramiko is free software; you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Paramiko; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
import socket
class SSHException(Exception):
"""
Exception raised by failures in SSH2 protocol negotiation or logic errors.
"""
pass
class AuthenticationException(SSHException):
"""
Exception raised when authentication failed for some reason. It may be
possible to retry with different credentials. (Other classes specify more
specific reasons.)
.. versionadded:: 1.6
"""
pass
class PasswordRequiredException(AuthenticationException):
"""
Exception raised when a password is needed to unlock a private key file.
"""
pass
class BadAuthenticationType(AuthenticationException):
"""
Exception raised when an authentication type (like password) is used, but
the server isn't allowing that type. (It may only allow public-key, for
example.)
.. versionadded:: 1.1
"""
allowed_types = []
# TODO 4.0: remove explanation kwarg
def __init__(self, explanation, types):
# TODO 4.0: remove this supercall unless it's actually required for
# pickling (after fixing pickling)
AuthenticationException.__init__(self, explanation, types)
self.explanation = explanation
self.allowed_types = types
def __str__(self):
return "{}; allowed types: {!r}".format(
self.explanation, self.allowed_types
)
class PartialAuthentication(AuthenticationException):
"""
An internal exception thrown in the case of partial authentication.
"""
allowed_types = []
def __init__(self, types):
AuthenticationException.__init__(self, types)
self.allowed_types = types
def __str__(self):
return "Partial authentication; allowed types: {!r}".format(
self.allowed_types
)
class ChannelException(SSHException):
"""
Exception raised when an attempt to open a new `.Channel` fails.
:param int code: the error code returned by the server
.. versionadded:: 1.6
"""
def __init__(self, code, text):
SSHException.__init__(self, code, text)
self.code = code
self.text = text
def __str__(self):
return "ChannelException({!r}, {!r})".format(self.code, self.text)
class BadHostKeyException(SSHException):
"""
The host key given by the SSH server did not match what we were expecting.
:param str hostname: the hostname of the SSH server
:param PKey got_key: the host key presented by the server
:param PKey expected_key: the host key expected
.. versionadded:: 1.6
"""
def __init__(self, hostname, got_key, expected_key):
SSHException.__init__(self, hostname, got_key, expected_key)
self.hostname = hostname
self.key = got_key
self.expected_key = expected_key
def __str__(self):
msg = "Host key for server '{}' does not match: got '{}', expected '{}'" # noqa
return msg.format(
self.hostname,
self.key.get_base64(),
self.expected_key.get_base64(),
)
class IncompatiblePeer(SSHException):
"""
A disagreement arose regarding an algorithm required for key exchange.
.. versionadded:: 2.9
"""
# TODO 4.0: consider making this annotate w/ 1..N 'missing' algorithms,
# either just the first one that would halt kex, or even updating the
# Transport logic so we record /all/ that /could/ halt kex.
# TODO: update docstrings where this may end up raised so they are more
# specific.
pass
class ProxyCommandFailure(SSHException):
"""
The "ProxyCommand" found in the .ssh/config file returned an error.
:param str command: The command line that is generating this exception.
:param str error: The error captured from the proxy command output.
"""
def __init__(self, command, error):
SSHException.__init__(self, command, error)
self.command = command
self.error = error
def __str__(self):
return 'ProxyCommand("{}") returned nonzero exit status: {}'.format(
self.command, self.error
)
class NoValidConnectionsError(socket.error):
"""
Multiple connection attempts were made and no families succeeded.
This exception class wraps multiple "real" underlying connection errors,
all of which represent failed connection attempts. Because these errors are
not guaranteed to all be of the same error type (i.e. different errno,
`socket.error` subclass, message, etc) we expose a single unified error
message and a ``None`` errno so that instances of this class match most
normal handling of `socket.error` objects.
To see the wrapped exception objects, access the ``errors`` attribute.
``errors`` is a dict whose keys are address tuples (e.g. ``('127.0.0.1',
22)``) and whose values are the exception encountered trying to connect to
that address.
It is implied/assumed that all the errors given to a single instance of
this class are from connecting to the same hostname + port (and thus that
the differences are in the resolution of the hostname - e.g. IPv4 vs v6).
.. versionadded:: 1.16
"""
def __init__(self, errors):
"""
:param dict errors:
The errors dict to store, as described by class docstring.
"""
addrs = sorted(errors.keys())
body = ", ".join([x[0] for x in addrs[:-1]])
tail = addrs[-1][0]
if body:
msg = "Unable to connect to port {0} on {1} or {2}"
else:
msg = "Unable to connect to port {0} on {2}"
super().__init__(
None, msg.format(addrs[0][1], body, tail) # stand-in for errno
)
self.errors = errors
def __reduce__(self):
return (self.__class__, (self.errors,))
class CouldNotCanonicalize(SSHException):
"""
Raised when hostname canonicalization fails & fallback is disabled.
.. versionadded:: 2.7
"""
pass
class ConfigParseError(SSHException):
"""
A fatal error was encountered trying to parse SSH config data.
Typically this means a config file violated the ``ssh_config``
specification in a manner that requires exiting immediately, such as not
matching ``key = value`` syntax or misusing certain ``Match`` keywords.
.. versionadded:: 2.7
"""
pass

591
jc/parsers/ssh_conf.py
View File

@ -1,47 +1,493 @@
"""jc - JSON Convert ssh configuration file parser """jc - JSON Convert ssh configuration file and `ssh -G` command output parser
This parser will work with `ssh` configuration files or the output of
`ssh -G`. Any `Match` blocks in the `ssh` configuration file will be
ignored.
Usage (cli): Usage (cli):
$ cat ssh_conf | jc --ssh-conf $ ssh -G hostname | jc --ssh-conf
or
$ jc ssh -G hostname
or
$ cat ~/.ssh/config | jc --ssh-conf
Usage (module): Usage (module):
import jc import jc
result = jc.parse('ssh_conf', ssh_conf_file_output) result = jc.parse('ssh_conf', ssh_conf_output)
Schema: Schema:
[ [
{ {
"ssh_conf": string, "host": string,
"bar": boolean, "addkeystoagent": string,
"baz": integer "addressfamily": string,
"batchmode": string,
"bindaddress": string,
"bindinterface": string,
"canonicaldomains": [
string
],
"canonicalizefallbacklocal": string,
"canonicalizehostname": string,
"canonicalizemaxdots": integer,
"canonicalizepermittedcnames": [
string
],
"casignaturealgorithms": [
string
],
"certificatefile": [
string
],
"checkhostip": string,
"ciphers": [
string
],
"clearallforwardings": string,
"compression": string,
"connectionattempts": integer,
"connecttimeout": integer,
"controlmaster": string,
"controlpath": string,
"controlpersist": string,
"dynamicforward": string,
"enableescapecommandline": string,
"enablesshkeysign": string,
"escapechar": string,
"exitonforwardfailure": string,
"fingerprinthash": string,
"forkafterauthentication": string,
"forwardagent": string,
"forwardx11": string,
"forwardx11timeout": integer,
"forwardx11trusted": string,
"gatewayports": string,
"globalknownhostsfile": [
string
],
"gssapiauthentication": string,
"gssapidelegatecredentials": string,
"hashknownhosts": string,
"hostbasedacceptedalgorithms": [
string
],
"hostbasedauthentication": string,
"hostkeyalgorithms": [
string
],
"hostkeyalias": string,
"hostname": string,
"identitiesonly": string,
"identityagent": string,
"identityfile": [
string
],
"ignoreunknown": string,
"include": [
string
],
"ipqos": [
string
],
"kbdinteractiveauthentication": string,
"kbdinteractivedevices": [
string
],
"kexalgorithms": [
string
],
"kexalgorithms_strategy": string,
"knownhostscommand": string,
"localcommand": string,
"localforward": [
string
],
"loglevel": string,
"logverbose": [
string
],
"macs": [
string
],
"macs_strategy": string,
"nohostauthenticationforlocalhost": string,
"numberofpasswordprompts": integer,
"passwordauthentication": string,
"permitlocalcommand": string,
"permitremoteopen": [
string
],
"pkcs11provider": string,
"port": integer,
"preferredauthentications": [
string
],
"protocol": integer,
"proxycommand": string,
"proxyjump": [
string
],
"proxyusefdpass": string,
"pubkeyacceptedalgorithms": [
string
],
"pubkeyacceptedalgorithms_strategy": string,
"pubkeyauthentication": string,
"rekeylimit": string,
"remotecommand": string,
"remoteforward": string,
"requesttty": string,
"requiredrsasize": integer,
"revokedhostkeys": string,
"securitykeyprovider": string,
"sendenv": [
string
],
"serveralivecountmax": integer,
"serveraliveinterval": integer,
"sessiontype": string,
"setenv": [
string
],
"stdinnull": string,
"streamlocalbindmask": string,
"streamlocalbindunlink": string,
"stricthostkeychecking": string,
"syslogfacility": string,
"tcpkeepalive": string,
"tunnel": string,
"tunneldevice": string,
"updatehostkeys": string,
"user": string,
"userknownhostsfile": [
string
],
"verifyhostkeydns": string,
"visualhostkey": string,
"xauthlocation": string
} }
] ]
Examples: Examples:
$ cat ssh_conf | jc --ssh-conf -p $ ssh -G - | jc --ssh-conf -p
[] [
{
"user": "foo",
"hostname": "-",
"port": 22,
"addressfamily": "any",
"batchmode": "no",
"canonicalizefallbacklocal": "yes",
"canonicalizehostname": "false",
"checkhostip": "no",
"compression": "no",
"controlmaster": "false",
"enablesshkeysign": "no",
"clearallforwardings": "no",
"exitonforwardfailure": "no",
"fingerprinthash": "SHA256",
"forwardx11": "no",
"forwardx11trusted": "no",
"gatewayports": "no",
"gssapiauthentication": "no",
"gssapidelegatecredentials": "no",
"hashknownhosts": "no",
"hostbasedauthentication": "no",
"identitiesonly": "no",
"kbdinteractiveauthentication": "yes",
"nohostauthenticationforlocalhost": "no",
"passwordauthentication": "yes",
"permitlocalcommand": "no",
"proxyusefdpass": "no",
"pubkeyauthentication": "true",
"requesttty": "auto",
"sessiontype": "default",
"stdinnull": "no",
"forkafterauthentication": "no",
"streamlocalbindunlink": "no",
"stricthostkeychecking": "ask",
"tcpkeepalive": "yes",
"tunnel": "false",
"verifyhostkeydns": "false",
"visualhostkey": "no",
"updatehostkeys": "true",
"applemultipath": "no",
"canonicalizemaxdots": 1,
"connectionattempts": 1,
"forwardx11timeout": 1200,
"numberofpasswordprompts": 3,
"serveralivecountmax": 3,
"serveraliveinterval": 0,
"ciphers": [
"chacha20-poly1305@openssh.com",
"aes128-ctr",
"aes192-ctr",
"aes256-ctr",
"aes128-gcm@openssh.com",
"aes256-gcm@openssh.com"
],
"hostkeyalgorithms": [
"ssh-ed25519-cert-v01@openssh.com",
"ecdsa-sha2-nistp256-cert-v01@openssh.com",
"ecdsa-sha2-nistp384-cert-v01@openssh.com",
"ecdsa-sha2-nistp521-cert-v01@openssh.com",
"rsa-sha2-512-cert-v01@openssh.com",
"rsa-sha2-256-cert-v01@openssh.com",
"ssh-ed25519",
"ecdsa-sha2-nistp256",
"ecdsa-sha2-nistp384",
"ecdsa-sha2-nistp521",
"rsa-sha2-512",
"rsa-sha2-256"
],
"hostbasedacceptedalgorithms": [
"ssh-ed25519-cert-v01@openssh.com",
"ecdsa-sha2-nistp256-cert-v01@openssh.com",
"ecdsa-sha2-nistp384-cert-v01@openssh.com",
"ecdsa-sha2-nistp521-cert-v01@openssh.com",
"rsa-sha2-512-cert-v01@openssh.com",
"rsa-sha2-256-cert-v01@openssh.com",
"ssh-ed25519",
"ecdsa-sha2-nistp256",
"ecdsa-sha2-nistp384",
"ecdsa-sha2-nistp521",
"rsa-sha2-512",
"rsa-sha2-256"
],
"kexalgorithms": [
"sntrup761x25519-sha512@openssh.com",
"curve25519-sha256",
"curve25519-sha256@libssh.org",
"ecdh-sha2-nistp256",
"ecdh-sha2-nistp384",
"ecdh-sha2-nistp521",
"diffie-hellman-group-exchange-sha256",
"diffie-hellman-group16-sha512",
"diffie-hellman-group18-sha512",
"diffie-hellman-group14-sha256"
],
"casignaturealgorithms": [
"ssh-ed25519",
"ecdsa-sha2-nistp256",
"ecdsa-sha2-nistp384",
"ecdsa-sha2-nistp521",
"rsa-sha2-512",
"rsa-sha2-256"
],
"loglevel": "INFO",
"macs": [
"umac-64-etm@openssh.com",
"umac-128-etm@openssh.com",
"hmac-sha2-256-etm@openssh.com",
"hmac-sha2-512-etm@openssh.com",
"hmac-sha1-etm@openssh.com",
"umac-64@openssh.com",
"umac-128@openssh.com",
"hmac-sha2-256",
"hmac-sha2-512",
"hmac-sha1"
],
"securitykeyprovider": "$SSH_SK_PROVIDER",
"pubkeyacceptedalgorithms": [
"ssh-ed25519-cert-v01@openssh.com",
"ecdsa-sha2-nistp256-cert-v01@openssh.com",
"ecdsa-sha2-nistp384-cert-v01@openssh.com",
"ecdsa-sha2-nistp521-cert-v01@openssh.com",
"rsa-sha2-512-cert-v01@openssh.com",
"rsa-sha2-256-cert-v01@openssh.com",
"ssh-ed25519",
"ecdsa-sha2-nistp256",
"ecdsa-sha2-nistp384",
"ecdsa-sha2-nistp521",
"rsa-sha2-512",
"rsa-sha2-256"
],
"xauthlocation": "/usr/X11R6/bin/xauth",
"identityfile": [
"~/.ssh/id_rsa",
"~/.ssh/id_ecdsa",
"~/.ssh/id_ecdsa_sk",
"~/.ssh/id_ed25519",
"~/.ssh/id_ed25519_sk",
"~/.ssh/id_xmss",
"~/.ssh/id_dsa"
],
"canonicaldomains": [
"none"
],
"globalknownhostsfile": [
"/etc/ssh/ssh_known_hosts",
"/etc/ssh/ssh_known_hosts2"
],
"userknownhostsfile": [
"/Users/foo/.ssh/known_hosts",
"/Users/foo/.ssh/known_hosts2"
],
"sendenv": [
"LANG",
"LC_*"
],
"logverbose": [
"none"
],
"permitremoteopen": [
"any"
],
"addkeystoagent": "false",
"forwardagent": "no",
"connecttimeout": null,
"tunneldevice": "any:any",
"canonicalizepermittedcnames": [
"none"
],
"controlpersist": "no",
"escapechar": "~",
"ipqos": [
"af21",
"cs1"
],
"rekeylimit": "0 0",
"streamlocalbindmask": "0177",
"syslogfacility": "USER"
}
]
$ cat ssh_conf | jc --ssh-conf -p -r $ cat ~/.ssh/config | jc --ssh-conf -p
[] [
{
"host": "server1",
"hostname": "server1.cyberciti.biz",
"user": "nixcraft",
"port": 4242,
"identityfile": [
"/nfs/shared/users/nixcraft/keys/server1/id_rsa"
]
},
{
"host": "nas01",
"hostname": "192.168.1.100",
"user": "root",
"identityfile": [
"~/.ssh/nas01.key"
]
},
{
"host": "aws.apache",
"hostname": "1.2.3.4",
"user": "wwwdata",
"identityfile": [
"~/.ssh/aws.apache.key"
]
},
{
"host": "uk.gw.lan uk.lan",
"hostname": "192.168.0.251",
"user": "nixcraft",
"proxycommand": "ssh nixcraft@gateway.uk.cyberciti.biz nc %h %p 2> /dev/null"
},
{
"host": "proxyus",
"hostname": "vps1.cyberciti.biz",
"user": "breakfree",
"identityfile": [
"~/.ssh/vps1.cyberciti.biz.key"
],
"localforward": [
"3128 127.0.0.1:3128"
]
},
{
"host": "*",
"forwardagent": "no",
"forwardx11": "no",
"forwardx11trusted": "yes",
"user": "nixcraft",
"port": 22,
"protocol": 2,
"serveraliveinterval": 60,
"serveralivecountmax": 30
}
]
$ cat ~/.ssh/config | jc --ssh-conf -p -r
[
{
"host": "server1",
"hostname": "server1.cyberciti.biz",
"user": "nixcraft",
"port": "4242",
"identityfile": [
"/nfs/shared/users/nixcraft/keys/server1/id_rsa"
]
},
{
"host": "nas01",
"hostname": "192.168.1.100",
"user": "root",
"identityfile": [
"~/.ssh/nas01.key"
]
},
{
"host": "aws.apache",
"hostname": "1.2.3.4",
"user": "wwwdata",
"identityfile": [
"~/.ssh/aws.apache.key"
]
},
{
"host": "uk.gw.lan uk.lan",
"hostname": "192.168.0.251",
"user": "nixcraft",
"proxycommand": "ssh nixcraft@gateway.uk.cyberciti.biz nc %h %p 2> /dev/null"
},
{
"host": "proxyus",
"hostname": "vps1.cyberciti.biz",
"user": "breakfree",
"identityfile": [
"~/.ssh/vps1.cyberciti.biz.key"
],
"localforward": [
"3128 127.0.0.1:3128"
]
},
{
"host": "*",
"forwardagent": "no",
"forwardx11": "no",
"forwardx11trusted": "yes",
"user": "nixcraft",
"port": "22",
"protocol": "2",
"serveraliveinterval": "60",
"serveralivecountmax": "30"
}
]
""" """
from typing import List, Dict from typing import Set, List, Dict
from jc.jc_types import JSONDictType from jc.jc_types import JSONDictType
import jc.utils import jc.utils
from .paramiko.config import SSHConfig as sshconfig
class info(): class info():
"""Provides parser metadata (version, author, etc.)""" """Provides parser metadata (version, author, etc.)"""
version = '1.0' version = '1.0'
description = 'ssh config file parser' description = 'ssh config file and `ssh -G` command parser'
author = 'Kelly Brazil' author = 'Kelly Brazil'
author_email = 'kellyjonbrazil@gmail.com' author_email = 'kellyjonbrazil@gmail.com'
details = 'Using Paramiko library at https://github.com/paramiko/paramiko.' compatible = ['linux', 'darwin', 'freebsd']
compatible = ['linux', 'darwin', 'cygwin', 'win32', 'aix', 'freebsd'] magic_commands = ['ssh -G']
tags = ['file'] tags = ['command', 'file']
__version__ = info.version __version__ = info.version
@ -59,6 +505,47 @@ def _process(proc_data: List[JSONDictType]) -> List[JSONDictType]:
List of Dictionaries. Structured to conform to the schema. List of Dictionaries. Structured to conform to the schema.
""" """
split_fields_space: Set[str] = {
'canonicaldomains', 'globalknownhostsfile', 'include', 'ipqos',
'permitremoteopen', 'sendenv', 'setenv', 'userknownhostsfile'
}
split_fields_comma: Set[str] = {
'canonicalizepermittedcnames', 'casignaturealgorithms', 'ciphers',
'hostbasedacceptedalgorithms', 'hostkeyalgorithms',
'kbdinteractivedevices', 'kexalgorithms', 'logverbose', 'macs',
'preferredauthentications', 'proxyjump', 'pubkeyacceptedalgorithms'
}
int_list: Set[str] = {
'canonicalizemaxdots', 'connectionattempts', 'connecttimeout',
'forwardx11timeout', 'numberofpasswordprompts', 'port', 'protocol',
'requiredrsasize', 'serveralivecountmax', 'serveraliveinterval'
}
for host in proc_data:
dict_copy = host.copy()
for key, val in dict_copy.items():
# these are list values
if key == 'sendenv' or key == 'setenv' or key == 'include':
new_list: List[str] = []
for item in val:
new_list.extend(item.split())
host[key] = new_list
continue
if key in split_fields_space:
host[key] = val.split()
continue
if key in split_fields_comma:
host[key] = val.split(',')
continue
for key, val in host.items():
if key in int_list:
host[key] = jc.utils.convert_to_int(val)
return proc_data return proc_data
@ -83,13 +570,73 @@ def parse(
jc.utils.compatibility(__name__, info.compatible, quiet) jc.utils.compatibility(__name__, info.compatible, quiet)
jc.utils.input_type_check(data) jc.utils.input_type_check(data)
raw_output: List[Dict] = [] raw_output: List = []
host: Dict = {}
multi_fields: Set[str] = {
'certificatefile', 'identityfile', 'include', 'localforward',
'sendenv', 'setenv'
}
modified_fields: Set[str] = {
'casignaturealgorithms', 'ciphers', 'hostbasedacceptedalgorithms',
'HostKeyAlgorithms', 'kexalgorithms', 'macs',
'pubkeyacceptedalgorithms'
}
modifiers: Set[str] = {'+', '-', '^'}
match_block_found = False
if jc.utils.has_data(data): if jc.utils.has_data(data):
myconfig = sshconfig.from_text(data)
hostnames = sorted(myconfig.get_hostnames()) for line in filter(None, data.splitlines()):
raw_output = [myconfig.lookup(x) for x in hostnames] # skip any lines with only whitespace
for host, obj in zip(hostnames, raw_output.copy()): if not line.strip():
obj.update({'host': host}) continue
# support configuration file by skipping commented lines
if line.strip().startswith('#'):
continue
if line.strip().startswith('Host '):
if host:
raw_output.append(host)
host = {'host': line.split()[1]}
# support configuration file by ignoring all lines between
# Match xxx and Match any
if line.strip().startswith('Match all'):
match_block_found = False
continue
if line.strip().startswith('Match'):
match_block_found = True
continue
if match_block_found:
continue
key, val = line.split(maxsplit=1)
# support configuration file by converting to lower case
key = key.lower()
if key in multi_fields:
if key not in host:
host[key] = []
host[key].append(val)
continue
if key in modified_fields and val[0] in modifiers:
host[key] = val[1:]
host[key + '_strategy'] = val[0]
continue
host[key] = val
continue
if host:
raw_output.append(host)
return raw_output if raw else _process(raw_output) return raw_output if raw else _process(raw_output)

8
jc/parsers/sshd_conf.py
View File

@ -483,13 +483,13 @@ import jc.utils
class info(): class info():
"""Provides parser metadata (version, author, etc.)""" """Provides parser metadata (version, author, etc.)"""
version = '1.0' version = '1.1'
description = 'sshd config file and `sshd -T` command parser' description = 'sshd config file and `sshd -T` command parser'
author = 'Kelly Brazil' author = 'Kelly Brazil'
author_email = 'kellyjonbrazil@gmail.com' author_email = 'kellyjonbrazil@gmail.com'
compatible = ['linux', 'darwin', 'freebsd'] compatible = ['linux', 'darwin', 'freebsd']
magic_commands = ['sshd -T'] magic_commands = ['sshd -T']
tags = ['file'] tags = ['command', 'file']
__version__ = info.version __version__ = info.version
@ -622,6 +622,10 @@ def parse(
if jc.utils.has_data(data): if jc.utils.has_data(data):
for line in filter(None, data.splitlines()): for line in filter(None, data.splitlines()):
# skip any lines with only whitespace
if not line.strip():
continue
# support configuration file by skipping commented lines # support configuration file by skipping commented lines
if line.strip().startswith('#'): if line.strip().startswith('#'):
continue continue