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django-sshkey-2.5.0
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مشاهده بیشترتوضیحات
Associates multiple SSH public keys with Django user accounts.
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | django-sshkey-2.5.0 |
| نام | django-sshkey |
| نسخه کتابخانه | 2.5.0 |
| نگهدارنده | [] |
| ایمیل نگهدارنده | [] |
| نویسنده | Scott Duckworth |
| ایمیل نویسنده | sduckwo@clemson.edu |
| آدرس صفحه اصلی | https://github.com/ClemsonSoCUnix/django-sshkey |
| آدرس اینترنتی | https://pypi.org/project/django-sshkey/ |
| مجوز | BSD |
=============
django-sshkey
=============
django-sshkey allows you to associate multiple SSH public keys with Django
user accounts. It provides views to list, add, edit, and delete keys, each of
which is intended for end-user consumption. It also provides a lookup view
and corresponding lookup commands that are suitable for use with the
``AuthorizedKeysCommand`` feature in OpenSSH_ 6.2 and above.
The Django app
==============
To use django-sshkey in your Django project, simply add ``django_sshkey`` to
``INSTALLED_APPS`` in ``settings.py``, map the URLs into your project, and
provide templates for the views (example templates are provided in the source).
In order to associate an incoming public key with a user you must define
``SSHKEY_AUTHORIZED_KEYS_OPTIONS`` in your project's ``settings.py``. This
should be a string containing options accepted by sshd, with ``{username}``
being replaced with the username of the user associated with the incoming
public key.
django-sshkey can also help you keep track of when a key was last used.
``SSHKEY_AUTHORIZED_KEYS_OPTIONS`` also replaces ``{key_id}`` with the key's
id. The command that is run can then notify django-sshkey that the key was used
by issuing a HTTP POST to the lookup URL, placing the key_id in the request
body.
For instance::
SSHKEY_AUTHORIZED_KEYS_OPTIONS = 'command="my-command {username} {key_id}",no-pty'
in settings.py will cause keys produced by the below commands to look similar
to::
command="my-command fred 15",no-pty ssh-rsa AAAAB3NzaC1yc2E...
sshd would then verify the key is correct and run ``my-command``.
``my-command`` would then know that this is fred and that he is using key 15,
and could tell django-sshkey to update the last_used field of that key by
running the equivalent of this command::
curl -d 15 http://localhost:8000/sshkey/lookup
Your URL may vary depending upon your configuration.
URL Configuration
-----------------
This text assumes that your project's ``urls.py`` maps ``django_sshkey.urls``
into the URL namespace as follows::
import django_sshkey.urls
urlpatterns = patterns('',
...
url('^sshkey/', include(django_sshkey.urls)),
...
)
You will need to adjust your URLs in the examples below if you use a different
mapping.
.. WARNING::
The ``/sshkey/lookup`` URL can expose all public keys that have
been uploaded to your site. Although they are public keys, it is probably a
good idea to limit what systems can access this URL via your web server's
configuration. Most of the lookup methods below require access to this URL,
and only the systems that need to run the lookup commands should have access
to it.
Settings
--------
``SSHKEY_AUTHORIZED_KEYS_OPTIONS``
String, optional. Defines the SSH options that will be prepended to each
public key. ``{username}`` will be replaced by the username; ``{key_id}``
will be replaced by the key's id. New in version 2.3.
``SSHKEY_ALLOW_EDIT``
Boolean, defaults to ``False``. Whether or not editing keys is allowed.
Note that no email will be sent in any case when a key is edited, hence the
reason that editing keys is disabled by default. New in version 2.3.
``SSHKEY_DEFAULT_HASH``
String, either ``sha256``, ``md5``, or ``legacy`` (the default). The default
hash algorithm to use for calculating the finger print of keys. Legacy
behavior enforces OpenSSH's pre-6.8 behavior of MD5 without the ``MD5:``
prefix. New in version 2.5.
``SSHKEY_EMAIL_ADD_KEY``
Boolean, defaults to ``True``. Whether or not an email should be sent to the
user when a new key is added to their account. New in version 2.3.
``SSHKEY_EMAIL_ADD_KEY_SUBJECT``
String, defaults to ``"A new key was added to your account"``. The subject of
the email that gets sent out when a new key is added. New in version 2.3.
``SSHKEY_FROM_EMAIL``
String, defaults to ``DEFAULT_FROM_EMAIL``. New in version 2.3.
``SSHKEY_SEND_HTML_EMAIL``
Boolean, defaults to ``False``. Whether or not multipart HTML emails should
be sent. New in version 2.3.
Templates
---------
Example templates are available in the ``templates.example`` directory.
``sshkey/userkey_list.html``
Used when listing a user's keys.
``sshkey/userkey_detail.html``
Used when adding or editing a user's keys.
``sshkey/add_key.txt``
The plain text body of the email sent when a new key is added. New in version
2.3.
``sshkey/add_key.html``
The HTML body of the email sent when a new key is added. New in version 2.3.
Management commands
-------------------
``import_sshkey [--auto-resolve] [--prefix PREFIX] [--name NAME] USERNAME KEY_PATH ...``
Imports SSH public keys to tie to a user. If ``--auto-resolve/-a`` are given,
attempt to generate unique key names using a UUID. The prefix used during
this process is the key name, but can be changed using ``--prefix/-p``.
``normalize_sshkeys [USERNAME KEY_NAME]``
Recalculates key data to reflect a changed setting, for instance, if you have
changed ``SSHKEY_DEFAULT_HASH`` and some keys have incorrect fingerprints in
your database. Given no arguments, all keys will be normalized. The username
asnd key name are optional, and if specified, will limit affected keys to
those owned by a user, or a particular key of a user. This can also be done
via the administration panel, but if you have a large key database the
request could end up timing out.
Tying OpenSSH to django-sshkey
==============================
There are multiple methods of connecting OpenSSH to django-sshkey. All of the
methods listed here require the use of the ``AuthorizedKeysCommand`` directive
in ``sshd_config`` present in OpenSSH 6.2 and above. Please note that the
command that is referenced by this directive and its ancestor directories must
be owned by root and writable only by owner.
Unless otherwise stated, all of the methods below use the ``SSHKEY_LOOKUP_URL``
environment variable to determine the URL of the ``/sshkey/lookup`` URL. If
this environment variable is not defined then it will default to
``http://localhost:8000/sshkey/lookup``. If this environment variable is
defined in the sshd process then it will be inherited by the
``AuthorizedKeysCommand``.
Additionally, all of the methods below use either ``curl`` (preferred) or
``wget``. Some commands also use ``ssh-keygen``. These commands must be
present in ``PATH``.
If you would prefer not to use these external commands then there are variants
of the lookup commands implemented purely in Python. However, they are *much*
slower. To use the variants, replace ``lookup`` with ``pylookup``. For
example, use ``django-sshkey-pylookup-all`` instead of
``django-sshkey-lookup-all``.
Using ``django-sshkey-lookup``
------------------------------
::
Usage: django-sshkey-lookup -a URL
django-sshkey-lookup -u URL USERNAME
django-sshkey-lookup -f URL FINGERPRINT
django-sshkey-lookup URL [USERNAME]
This program has different modes of operation:
``-a``
Print all public keys.
``-u``
Print all public keys owned by the specified user.
``-f``
Print all public keys matching the specified fingerprint.
Default
Compatibility mode. If the username parameter is given then print all public
keys owned by the specified user; otherwise perform the same functionality as
``django-sshkey-lookup-by-fingerprint`` (see below).
Starting with OpenSSH 6.9 and above, the ``AuthorizedKeysCommand`` directive
supports the use of user-specified command line arguments, and different
details about the authentication attempt are available to pass to the program.
This makes ``django-sshkey-lookup`` a good fit for later versions of the
OpenSSH server.
::
# Show all available public keys
AuthorizedKeysCommand /usr/local/bin/django-sshkey-lookup -a URL
# Filter keys owned by Django user (assuming the user matches)
AuthorizedKeysCommand /usr/local/bin/django-sshkey-lookup -u URL %u
# Filter keys matching a sha256 fingerprint
AuthorizedKeysCommand /usr/local/bin/django-sshkey-lookup -f URL %f
.. note::
If you choose to use OpenSSH's ``%f`` to filter by key fingerprint, know that
it provides the sha256 fingerprint of the key by default. You can change the
``FingerprintHash`` directive in ``sshd_config`` to ``md5``, but in either
case you will need to set django-sshkey's ``SSHKEY_DEFAULT_HASH`` setting to
``sha256`` or ``md5`` to match. By default, django-sshkey emulates OpenSSH's
pre-6.8 fingerprint behavior, which is a slightly different representation of
an md5 hash. This is so it is backwards-compatible with its pre-2.5 behavior.
All modes expect that the lookup URL be specified as the first non-option
parameter.
This command is compatible with the old script ``lookup.sh`` but was renamed
to have a less ambiguous name when installed system-wide. A symlink is left in
its place for backwards compatibility.
Using ``django-sshkey-lookup-all``
----------------------------------
``Usage: django-sshkey-lookup-all``
This program prints all SSH public keys that are defined on your site. sshd
will have to scan through all of them to find the first match, so with many
keys this method will be slow. However, it does not require a patched OpenSSH
server.
This program:
* can be used directly with pre-6.9 ``AuthorizedKeysCommand`` (the username
parameter is ignored).
* does not require a patched OpenSSH server.
* does not scale well to a large number of user keys.
Using ``django-sshkey-lookup-by-username``
------------------------------------------
``Usage: django-sshkey-lookup-by-username USERNAME``
This program prints all SSH public keys that are associated with the specified
user.
This program:
* can be used directly with pre-6.9 ``AuthorizedKeysCommand``.
* does not require a patched OpenSSH server.
* is ideal if each Django user corresponds to a system user account.
Using ``django-sshkey-lookup-by-fingerprint``
---------------------------------------------
``Usage: django-sshkey-lookup-by-fingerprint``
This program prints all SSH public keys that match the given fingerprint. The
fingerprint is determined by the first of the following that is found:
1. The ``SSH_KEY_FINGERPRINT`` environment variable, which should contain the
MD5 fingerprint of the key (this is the second field generated by
``ssh-keygen -l``).
2. The ``SSH_KEY`` environment variable, which should contain the key in
standard openssh format (the same format as ``~/.ssh/id_rsa.pub``), is sent
to ``ssh-keygen -l`` to determine the fingerprint.
3. The key in standard openssh format is read from standard input and is sent
to ``ssh-keygen -l`` to determine the fingerprint.
This program:
* can be used directly with ``AuthorizedKeysCommand`` (the username parameter
is ignored).
* requires a patched OpenSSH server; compatible patches can be found at one of
the following locations:
- openssh-akcenv_ (this is the preferred patch)
- openssh-stdinkey_
* is ideal if you want all Django users to access SSH via a shared system user
account and be identified by their SSH public key.
.. _OpenSSH: http://www.openssh.com/
.. _openssh-akcenv: https://github.com/ScottDuckworth/openssh-akcenv
.. _openssh-stdinkey: https://github.com/ScottDuckworth/openssh-stdinkey
نحوه نصب
نصب پکیج whl django-sshkey-2.5.0:
pip install django-sshkey-2.5.0.whl
نصب پکیج tar.gz django-sshkey-2.5.0:
pip install django-sshkey-2.5.0.tar.gz