mirror of
https://github.com/ansible-collections/community.general.git
synced 2025-10-26 13:56:09 -07:00
5a3493be5f
* Port urls.py to python3 Fixes (largely normalizing byte vs text strings) for python3 * Rework what we do with attributes that aren't set already. * Comments
943 lines
37 KiB
Python
943 lines
37 KiB
Python
# This code is part of Ansible, but is an independent component.
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# This particular file snippet, and this file snippet only, is BSD licensed.
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# Modules you write using this snippet, which is embedded dynamically by Ansible
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# still belong to the author of the module, and may assign their own license
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# to the complete work.
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#
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# Copyright (c), Michael DeHaan <michael.dehaan@gmail.com>, 2012-2013
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# Copyright (c), Toshio Kuratomi <tkuratomi@ansible.com>, 2015
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without modification,
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# are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * 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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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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# PROCUREMENT OF 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 CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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# USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# The match_hostname function and supporting code is under the terms and
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# conditions of the Python Software Foundation License. They were taken from
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# the Python3 standard library and adapted for use in Python2. See comments in the
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# source for which code precisely is under this License. PSF License text
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# follows:
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#
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# PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2
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# --------------------------------------------
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#
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# 1. This LICENSE AGREEMENT is between the Python Software Foundation
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# ("PSF"), and the Individual or Organization ("Licensee") accessing and
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# otherwise using this software ("Python") in source or binary form and
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# its associated documentation.
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#
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# 2. Subject to the terms and conditions of this License Agreement, PSF hereby
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# grants Licensee a nonexclusive, royalty-free, world-wide license to reproduce,
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# analyze, test, perform and/or display publicly, prepare derivative works,
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# distribute, and otherwise use Python alone or in any derivative version,
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# provided, however, that PSF's License Agreement and PSF's notice of copyright,
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# i.e., "Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
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# 2011, 2012, 2013, 2014 Python Software Foundation; All Rights Reserved" are
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# retained in Python alone or in any derivative version prepared by Licensee.
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#
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# 3. In the event Licensee prepares a derivative work that is based on
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# or incorporates Python or any part thereof, and wants to make
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# the derivative work available to others as provided herein, then
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# Licensee hereby agrees to include in any such work a brief summary of
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# the changes made to Python.
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#
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# 4. PSF is making Python available to Licensee on an "AS IS"
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# basis. PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
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# IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND
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# DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
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# FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON WILL NOT
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# INFRINGE ANY THIRD PARTY RIGHTS.
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#
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# 5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
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# FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS
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# A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON,
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# OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
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#
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# 6. This License Agreement will automatically terminate upon a material
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# breach of its terms and conditions.
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#
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# 7. Nothing in this License Agreement shall be deemed to create any
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# relationship of agency, partnership, or joint venture between PSF and
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# Licensee. This License Agreement does not grant permission to use PSF
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# trademarks or trade name in a trademark sense to endorse or promote
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# products or services of Licensee, or any third party.
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#
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# 8. By copying, installing or otherwise using Python, Licensee
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# agrees to be bound by the terms and conditions of this License
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# Agreement.
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import netrc
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import os
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import re
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import sys
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import socket
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import platform
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import tempfile
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import base64
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from ansible.module_utils.basic import get_distribution, get_exception
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try:
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import httplib
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except ImportError:
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# Python 3
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import http.client as httplib
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import ansible.module_utils.six.moves.urllib.request as urllib_request
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import ansible.module_utils.six.moves.urllib.error as urllib_error
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try:
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# python3
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import urllib.request as urllib_request
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from urllib.request import AbstractHTTPHandler
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except ImportError:
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# python2
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import urllib2 as urllib_request
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from urllib2 import AbstractHTTPHandler
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try:
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from ansible.module_utils.six.moves.urllib.parse import urlparse, urlunparse
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HAS_URLPARSE = True
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except:
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HAS_URLPARSE = False
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try:
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import ssl
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HAS_SSL = True
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except:
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HAS_SSL = False
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try:
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# SNI Handling needs python2.7.9's SSLContext
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from ssl import create_default_context, SSLContext
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HAS_SSLCONTEXT = True
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except ImportError:
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HAS_SSLCONTEXT = False
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try:
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try:
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from urllib3.contrib.pyopenssl import ssl_wrap_socket
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except ImportError:
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from requests.packages.urllib3.contrib.pyopenssl import ssl_wrap_socket
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HAS_URLLIB3_SNI_SUPPORT = True
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except ImportError:
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HAS_URLLIB3_SNI_SUPPORT = False
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# Select a protocol that includes all secure tls protocols
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# Exclude insecure ssl protocols if possible
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if HAS_SSL:
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# If we can't find extra tls methods, ssl.PROTOCOL_TLSv1 is sufficient
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PROTOCOL = ssl.PROTOCOL_TLSv1
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if not HAS_SSLCONTEXT and HAS_SSL:
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try:
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import ctypes
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import ctypes.util
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except ImportError:
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# python 2.4 (likely rhel5 which doesn't have tls1.1 support in its openssl)
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pass
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else:
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libssl_name = ctypes.util.find_library('ssl')
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libssl = ctypes.CDLL(libssl_name)
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for method in ('TLSv1_1_method', 'TLSv1_2_method'):
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try:
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libssl[method]
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# Found something - we'll let openssl autonegotiate and hope
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# the server has disabled sslv2 and 3. best we can do.
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PROTOCOL = ssl.PROTOCOL_SSLv23
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break
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except AttributeError:
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pass
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del libssl
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HAS_MATCH_HOSTNAME = True
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try:
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from ssl import match_hostname, CertificateError
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except ImportError:
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try:
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from backports.ssl_match_hostname import match_hostname, CertificateError
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except ImportError:
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HAS_MATCH_HOSTNAME = False
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if not HAS_MATCH_HOSTNAME:
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###
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### The following block of code is under the terms and conditions of the
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### Python Software Foundation License
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###
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"""The match_hostname() function from Python 3.4, essential when using SSL."""
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class CertificateError(ValueError):
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pass
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def _dnsname_match(dn, hostname, max_wildcards=1):
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"""Matching according to RFC 6125, section 6.4.3
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http://tools.ietf.org/html/rfc6125#section-6.4.3
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"""
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pats = []
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if not dn:
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return False
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# Ported from python3-syntax:
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# leftmost, *remainder = dn.split(r'.')
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parts = dn.split(r'.')
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leftmost = parts[0]
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remainder = parts[1:]
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wildcards = leftmost.count('*')
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if wildcards > max_wildcards:
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# Issue #17980: avoid denials of service by refusing more
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# than one wildcard per fragment. A survey of established
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# policy among SSL implementations showed it to be a
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# reasonable choice.
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raise CertificateError(
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"too many wildcards in certificate DNS name: " + repr(dn))
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# speed up common case w/o wildcards
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if not wildcards:
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return dn.lower() == hostname.lower()
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# RFC 6125, section 6.4.3, subitem 1.
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# The client SHOULD NOT attempt to match a presented identifier in which
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# the wildcard character comprises a label other than the left-most label.
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if leftmost == '*':
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# When '*' is a fragment by itself, it matches a non-empty dotless
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# fragment.
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pats.append('[^.]+')
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elif leftmost.startswith('xn--') or hostname.startswith('xn--'):
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# RFC 6125, section 6.4.3, subitem 3.
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# The client SHOULD NOT attempt to match a presented identifier
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# where the wildcard character is embedded within an A-label or
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# U-label of an internationalized domain name.
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pats.append(re.escape(leftmost))
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else:
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# Otherwise, '*' matches any dotless string, e.g. www*
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pats.append(re.escape(leftmost).replace(r'\*', '[^.]*'))
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# add the remaining fragments, ignore any wildcards
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for frag in remainder:
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pats.append(re.escape(frag))
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pat = re.compile(r'\A' + r'\.'.join(pats) + r'\Z', re.IGNORECASE)
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return pat.match(hostname)
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def match_hostname(cert, hostname):
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"""Verify that *cert* (in decoded format as returned by
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SSLSocket.getpeercert()) matches the *hostname*. RFC 2818 and RFC 6125
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rules are followed, but IP addresses are not accepted for *hostname*.
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CertificateError is raised on failure. On success, the function
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returns nothing.
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"""
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if not cert:
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raise ValueError("empty or no certificate")
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dnsnames = []
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san = cert.get('subjectAltName', ())
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for key, value in san:
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if key == 'DNS':
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if _dnsname_match(value, hostname):
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return
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dnsnames.append(value)
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if not dnsnames:
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# The subject is only checked when there is no dNSName entry
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# in subjectAltName
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for sub in cert.get('subject', ()):
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for key, value in sub:
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# XXX according to RFC 2818, the most specific Common Name
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# must be used.
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if key == 'commonName':
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if _dnsname_match(value, hostname):
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return
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dnsnames.append(value)
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if len(dnsnames) > 1:
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raise CertificateError("hostname %r "
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"doesn't match either of %s"
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% (hostname, ', '.join(map(repr, dnsnames))))
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elif len(dnsnames) == 1:
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raise CertificateError("hostname %r "
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"doesn't match %r"
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% (hostname, dnsnames[0]))
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else:
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raise CertificateError("no appropriate commonName or "
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"subjectAltName fields were found")
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###
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### End of Python Software Foundation Licensed code
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###
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HAS_MATCH_HOSTNAME = True
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# This is a dummy cacert provided for Mac OS since you need at least 1
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# ca cert, regardless of validity, for Python on Mac OS to use the
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# keychain functionality in OpenSSL for validating SSL certificates.
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# See: http://mercurial.selenic.com/wiki/CACertificates#Mac_OS_X_10.6_and_higher
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DUMMY_CA_CERT = """-----BEGIN CERTIFICATE-----
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MIICvDCCAiWgAwIBAgIJAO8E12S7/qEpMA0GCSqGSIb3DQEBBQUAMEkxCzAJBgNV
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BAYTAlVTMRcwFQYDVQQIEw5Ob3J0aCBDYXJvbGluYTEPMA0GA1UEBxMGRHVyaGFt
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MRAwDgYDVQQKEwdBbnNpYmxlMB4XDTE0MDMxODIyMDAyMloXDTI0MDMxNTIyMDAy
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MlowSTELMAkGA1UEBhMCVVMxFzAVBgNVBAgTDk5vcnRoIENhcm9saW5hMQ8wDQYD
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VQQHEwZEdXJoYW0xEDAOBgNVBAoTB0Fuc2libGUwgZ8wDQYJKoZIhvcNAQEBBQAD
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gY0AMIGJAoGBANtvpPq3IlNlRbCHhZAcP6WCzhc5RbsDqyh1zrkmLi0GwcQ3z/r9
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gaWfQBYhHpobK2Tiq11TfraHeNB3/VfNImjZcGpN8Fl3MWwu7LfVkJy3gNNnxkA1
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4Go0/LmIvRFHhbzgfuo9NFgjPmmab9eqXJceqZIlz2C8xA7EeG7ku0+vAgMBAAGj
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gaswgagwHQYDVR0OBBYEFPnN1nPRqNDXGlCqCvdZchRNi/FaMHkGA1UdIwRyMHCA
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FPnN1nPRqNDXGlCqCvdZchRNi/FaoU2kSzBJMQswCQYDVQQGEwJVUzEXMBUGA1UE
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CBMOTm9ydGggQ2Fyb2xpbmExDzANBgNVBAcTBkR1cmhhbTEQMA4GA1UEChMHQW5z
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aWJsZYIJAO8E12S7/qEpMAwGA1UdEwQFMAMBAf8wDQYJKoZIhvcNAQEFBQADgYEA
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MUB80IR6knq9K/tY+hvPsZer6eFMzO3JGkRFBh2kn6JdMDnhYGX7AXVHGflrwNQH
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|
qFy+aenWXsC0ZvrikFxbQnX8GVtDADtVznxOi7XzFw7JOxdsVrpXgSN0eh0aMzvV
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zKPZsZ2miVGclicJHzm5q080b1p/sZtuKIEZk6vZqEg=
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-----END CERTIFICATE-----
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"""
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#
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# Exceptions
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#
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class ConnectionError(Exception):
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"""Failed to connect to the server"""
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pass
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class ProxyError(ConnectionError):
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"""Failure to connect because of a proxy"""
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pass
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class SSLValidationError(ConnectionError):
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"""Failure to connect due to SSL validation failing"""
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pass
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class NoSSLError(SSLValidationError):
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"""Needed to connect to an HTTPS url but no ssl library available to verify the certificate"""
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pass
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# Some environments (Google Compute Engine's CoreOS deploys) do not compile
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# against openssl and thus do not have any HTTPS support.
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CustomHTTPSConnection = CustomHTTPSHandler = None
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if hasattr(httplib, 'HTTPSConnection') and hasattr(urllib_request, 'HTTPSHandler'):
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class CustomHTTPSConnection(httplib.HTTPSConnection):
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def __init__(self, *args, **kwargs):
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httplib.HTTPSConnection.__init__(self, *args, **kwargs)
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if HAS_SSLCONTEXT:
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self.context = create_default_context()
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if self.cert_file:
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self.context.load_cert_chain(self.cert_file, self.key_file)
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def connect(self):
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"Connect to a host on a given (SSL) port."
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if hasattr(self, 'source_address'):
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sock = socket.create_connection((self.host, self.port), self.timeout, self.source_address)
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else:
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sock = socket.create_connection((self.host, self.port), self.timeout)
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server_hostname = self.host
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# Note: self._tunnel_host is not available on py < 2.6 but this code
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# isn't used on py < 2.6 (lack of create_connection)
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if self._tunnel_host:
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self.sock = sock
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self._tunnel()
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server_hostname = self._tunnel_host
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if HAS_SSLCONTEXT:
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self.sock = self.context.wrap_socket(sock, server_hostname=server_hostname)
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elif HAS_URLLIB3_SNI_SUPPORT:
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self.sock = ssl_wrap_socket(sock, keyfile=self.key_file, cert_reqs=ssl.CERT_NONE, certfile=self.cert_file, ssl_version=PROTOCOL,
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server_hostname=server_hostname)
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else:
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self.sock = ssl.wrap_socket(sock, keyfile=self.key_file, certfile=self.cert_file, ssl_version=PROTOCOL)
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|
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class CustomHTTPSHandler(urllib_request.HTTPSHandler):
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def https_open(self, req):
|
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return self.do_open(CustomHTTPSConnection, req)
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|
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https_request = AbstractHTTPHandler.do_request_
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|
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def generic_urlparse(parts):
|
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'''
|
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Returns a dictionary of url parts as parsed by urlparse,
|
|
but accounts for the fact that older versions of that
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library do not support named attributes (ie. .netloc)
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'''
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generic_parts = dict()
|
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if hasattr(parts, 'netloc'):
|
|
# urlparse is newer, just read the fields straight
|
|
# from the parts object
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|
generic_parts['scheme'] = parts.scheme
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|
generic_parts['netloc'] = parts.netloc
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|
generic_parts['path'] = parts.path
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|
generic_parts['params'] = parts.params
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|
generic_parts['query'] = parts.query
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|
generic_parts['fragment'] = parts.fragment
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|
generic_parts['username'] = parts.username
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|
generic_parts['password'] = parts.password
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|
generic_parts['hostname'] = parts.hostname
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|
generic_parts['port'] = parts.port
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|
else:
|
|
# we have to use indexes, and then parse out
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|
# the other parts not supported by indexing
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|
generic_parts['scheme'] = parts[0]
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|
generic_parts['netloc'] = parts[1]
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|
generic_parts['path'] = parts[2]
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|
generic_parts['params'] = parts[3]
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|
generic_parts['query'] = parts[4]
|
|
generic_parts['fragment'] = parts[5]
|
|
# get the username, password, etc.
|
|
try:
|
|
netloc_re = re.compile(r'^((?:\w)+(?::(?:\w)+)?@)?([A-Za-z0-9.-]+)(:\d+)?$')
|
|
match = netloc_re.match(parts[1])
|
|
auth = match.group(1)
|
|
hostname = match.group(2)
|
|
port = match.group(3)
|
|
if port:
|
|
# the capture group for the port will include the ':',
|
|
# so remove it and convert the port to an integer
|
|
port = int(port[1:])
|
|
if auth:
|
|
# the capture group above inclues the @, so remove it
|
|
# and then split it up based on the first ':' found
|
|
auth = auth[:-1]
|
|
username, password = auth.split(':', 1)
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|
else:
|
|
username = password = None
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generic_parts['username'] = username
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|
generic_parts['password'] = password
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|
generic_parts['hostname'] = hostname
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|
generic_parts['port'] = port
|
|
except:
|
|
generic_parts['username'] = None
|
|
generic_parts['password'] = None
|
|
generic_parts['hostname'] = parts[1]
|
|
generic_parts['port'] = None
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return generic_parts
|
|
|
|
|
|
class RequestWithMethod(urllib_request.Request):
|
|
'''
|
|
Workaround for using DELETE/PUT/etc with urllib2
|
|
Originally contained in library/net_infrastructure/dnsmadeeasy
|
|
'''
|
|
|
|
def __init__(self, url, method, data=None, headers=None):
|
|
if headers is None:
|
|
headers = {}
|
|
self._method = method.upper()
|
|
urllib_request.Request.__init__(self, url, data, headers)
|
|
|
|
def get_method(self):
|
|
if self._method:
|
|
return self._method
|
|
else:
|
|
return urllib_request.Request.get_method(self)
|
|
|
|
|
|
def RedirectHandlerFactory(follow_redirects=None, validate_certs=True):
|
|
"""This is a class factory that closes over the value of
|
|
``follow_redirects`` so that the RedirectHandler class has access to
|
|
that value without having to use globals, and potentially cause problems
|
|
where ``open_url`` or ``fetch_url`` are used multiple times in a module.
|
|
"""
|
|
|
|
class RedirectHandler(urllib_request.HTTPRedirectHandler):
|
|
"""This is an implementation of a RedirectHandler to match the
|
|
functionality provided by httplib2. It will utilize the value of
|
|
``follow_redirects`` that is passed into ``RedirectHandlerFactory``
|
|
to determine how redirects should be handled in urllib2.
|
|
"""
|
|
|
|
def redirect_request(self, req, fp, code, msg, hdrs, newurl):
|
|
handler = maybe_add_ssl_handler(newurl, validate_certs)
|
|
if handler:
|
|
urllib_request._opener.add_handler(handler)
|
|
|
|
if follow_redirects == 'urllib2':
|
|
return urllib_request.HTTPRedirectHandler.redirect_request(self, req, fp, code, msg, hdrs, newurl)
|
|
elif follow_redirects in ['no', 'none', False]:
|
|
raise urllib_error.HTTPError(newurl, code, msg, hdrs, fp)
|
|
|
|
do_redirect = False
|
|
if follow_redirects in ['all', 'yes', True]:
|
|
do_redirect = (code >= 300 and code < 400)
|
|
|
|
elif follow_redirects == 'safe':
|
|
m = req.get_method()
|
|
do_redirect = (code >= 300 and code < 400 and m in ('GET', 'HEAD'))
|
|
|
|
if do_redirect:
|
|
# be conciliant with URIs containing a space
|
|
newurl = newurl.replace(' ', '%20')
|
|
newheaders = dict((k,v) for k,v in req.headers.items()
|
|
if k.lower() not in ("content-length", "content-type")
|
|
)
|
|
return urllib_request.Request(newurl,
|
|
headers=newheaders,
|
|
origin_req_host=req.get_origin_req_host(),
|
|
unverifiable=True)
|
|
else:
|
|
raise urllib_error.HTTPError(req.get_full_url(), code, msg, hdrs, fp)
|
|
|
|
return RedirectHandler
|
|
|
|
|
|
def build_ssl_validation_error(hostname, port, paths):
|
|
'''Inteligently build out the SSLValidationError based on what support
|
|
you have installed
|
|
'''
|
|
|
|
msg = [
|
|
('Failed to validate the SSL certificate for %s:%s.'
|
|
' Make sure your managed systems have a valid CA'
|
|
' certificate installed.')
|
|
]
|
|
if not HAS_SSLCONTEXT:
|
|
msg.append('If the website serving the url uses SNI you need'
|
|
' python >= 2.7.9 on your managed machine')
|
|
if not HAS_URLLIB3_SNI_SUPPORT:
|
|
msg.append('or you can install the `urllib3`, `pyopenssl`,'
|
|
' `ndg-httpsclient`, and `pyasn1` python modules')
|
|
|
|
msg.append('to perform SNI verification in python >= 2.6.')
|
|
|
|
msg.append('You can use validate_certs=False if you do'
|
|
' not need to confirm the servers identity but this is'
|
|
' unsafe and not recommended.'
|
|
' Paths checked for this platform: %s')
|
|
|
|
raise SSLValidationError(' '.join(msg) % (hostname, port, ", ".join(paths)))
|
|
|
|
|
|
class SSLValidationHandler(urllib_request.BaseHandler):
|
|
'''
|
|
A custom handler class for SSL validation.
|
|
|
|
Based on:
|
|
http://stackoverflow.com/questions/1087227/validate-ssl-certificates-with-python
|
|
http://techknack.net/python-urllib2-handlers/
|
|
'''
|
|
CONNECT_COMMAND = "CONNECT %s:%s HTTP/1.0\r\nConnection: close\r\n"
|
|
|
|
def __init__(self, hostname, port):
|
|
self.hostname = hostname
|
|
self.port = port
|
|
|
|
def get_ca_certs(self):
|
|
# tries to find a valid CA cert in one of the
|
|
# standard locations for the current distribution
|
|
|
|
ca_certs = []
|
|
paths_checked = []
|
|
|
|
system = platform.system()
|
|
# build a list of paths to check for .crt/.pem files
|
|
# based on the platform type
|
|
paths_checked.append('/etc/ssl/certs')
|
|
if system == 'Linux':
|
|
paths_checked.append('/etc/pki/ca-trust/extracted/pem')
|
|
paths_checked.append('/etc/pki/tls/certs')
|
|
paths_checked.append('/usr/share/ca-certificates/cacert.org')
|
|
elif system == 'FreeBSD':
|
|
paths_checked.append('/usr/local/share/certs')
|
|
elif system == 'OpenBSD':
|
|
paths_checked.append('/etc/ssl')
|
|
elif system == 'NetBSD':
|
|
ca_certs.append('/etc/openssl/certs')
|
|
elif system == 'SunOS':
|
|
paths_checked.append('/opt/local/etc/openssl/certs')
|
|
|
|
# fall back to a user-deployed cert in a standard
|
|
# location if the OS platform one is not available
|
|
paths_checked.append('/etc/ansible')
|
|
|
|
tmp_fd, tmp_path = tempfile.mkstemp()
|
|
|
|
# Write the dummy ca cert if we are running on Mac OS X
|
|
if system == 'Darwin':
|
|
os.write(tmp_fd, DUMMY_CA_CERT)
|
|
# Default Homebrew path for OpenSSL certs
|
|
paths_checked.append('/usr/local/etc/openssl')
|
|
|
|
# for all of the paths, find any .crt or .pem files
|
|
# and compile them into single temp file for use
|
|
# in the ssl check to speed up the test
|
|
for path in paths_checked:
|
|
if os.path.exists(path) and os.path.isdir(path):
|
|
dir_contents = os.listdir(path)
|
|
for f in dir_contents:
|
|
full_path = os.path.join(path, f)
|
|
if os.path.isfile(full_path) and os.path.splitext(f)[1] in ('.crt','.pem'):
|
|
try:
|
|
cert_file = open(full_path, 'r')
|
|
os.write(tmp_fd, cert_file.read())
|
|
os.write(tmp_fd, '\n')
|
|
cert_file.close()
|
|
except:
|
|
pass
|
|
|
|
return (tmp_path, paths_checked)
|
|
|
|
def validate_proxy_response(self, response, valid_codes=[200]):
|
|
'''
|
|
make sure we get back a valid code from the proxy
|
|
'''
|
|
try:
|
|
(http_version, resp_code, msg) = re.match(r'(HTTP/\d\.\d) (\d\d\d) (.*)', response).groups()
|
|
if int(resp_code) not in valid_codes:
|
|
raise Exception
|
|
except:
|
|
raise ProxyError('Connection to proxy failed')
|
|
|
|
def detect_no_proxy(self, url):
|
|
'''
|
|
Detect if the 'no_proxy' environment variable is set and honor those locations.
|
|
'''
|
|
env_no_proxy = os.environ.get('no_proxy')
|
|
if env_no_proxy:
|
|
env_no_proxy = env_no_proxy.split(',')
|
|
netloc = urlparse(url).netloc
|
|
|
|
for host in env_no_proxy:
|
|
if netloc.endswith(host) or netloc.split(':')[0].endswith(host):
|
|
# Our requested URL matches something in no_proxy, so don't
|
|
# use the proxy for this
|
|
return False
|
|
return True
|
|
|
|
def _make_context(self, tmp_ca_cert_path):
|
|
context = create_default_context()
|
|
context.load_verify_locations(tmp_ca_cert_path)
|
|
return context
|
|
|
|
def http_request(self, req):
|
|
tmp_ca_cert_path, paths_checked = self.get_ca_certs()
|
|
https_proxy = os.environ.get('https_proxy')
|
|
context = None
|
|
if HAS_SSLCONTEXT:
|
|
context = self._make_context(tmp_ca_cert_path)
|
|
|
|
# Detect if 'no_proxy' environment variable is set and if our URL is included
|
|
use_proxy = self.detect_no_proxy(req.get_full_url())
|
|
|
|
if not use_proxy:
|
|
# ignore proxy settings for this host request
|
|
return req
|
|
|
|
try:
|
|
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
if https_proxy:
|
|
proxy_parts = generic_urlparse(urlparse(https_proxy))
|
|
port = proxy_parts.get('port') or 443
|
|
s.connect((proxy_parts.get('hostname'), port))
|
|
if proxy_parts.get('scheme') == 'http':
|
|
s.sendall(self.CONNECT_COMMAND % (self.hostname, self.port))
|
|
if proxy_parts.get('username'):
|
|
credentials = "%s:%s" % (proxy_parts.get('username',''), proxy_parts.get('password',''))
|
|
s.sendall('Proxy-Authorization: Basic %s\r\n' % credentials.encode('base64').strip())
|
|
s.sendall('\r\n')
|
|
connect_result = s.recv(4096)
|
|
self.validate_proxy_response(connect_result)
|
|
if context:
|
|
ssl_s = context.wrap_socket(s, server_hostname=self.hostname)
|
|
elif HAS_URLLIB3_SNI_SUPPORT:
|
|
ssl_s = ssl_wrap_socket(s, ca_certs=tmp_ca_cert_path, cert_reqs=ssl.CERT_REQUIRED, ssl_version=PROTOCOL, server_hostname=self.hostname)
|
|
else:
|
|
ssl_s = ssl.wrap_socket(s, ca_certs=tmp_ca_cert_path, cert_reqs=ssl.CERT_REQUIRED, ssl_version=PROTOCOL)
|
|
match_hostname(ssl_s.getpeercert(), self.hostname)
|
|
else:
|
|
raise ProxyError('Unsupported proxy scheme: %s. Currently ansible only supports HTTP proxies.' % proxy_parts.get('scheme'))
|
|
else:
|
|
s.connect((self.hostname, self.port))
|
|
if context:
|
|
ssl_s = context.wrap_socket(s, server_hostname=self.hostname)
|
|
elif HAS_URLLIB3_SNI_SUPPORT:
|
|
ssl_s = ssl_wrap_socket(s, ca_certs=tmp_ca_cert_path, cert_reqs=ssl.CERT_REQUIRED, ssl_version=PROTOCOL, server_hostname=self.hostname)
|
|
else:
|
|
ssl_s = ssl.wrap_socket(s, ca_certs=tmp_ca_cert_path, cert_reqs=ssl.CERT_REQUIRED, ssl_version=PROTOCOL)
|
|
match_hostname(ssl_s.getpeercert(), self.hostname)
|
|
# close the ssl connection
|
|
#ssl_s.unwrap()
|
|
s.close()
|
|
except (ssl.SSLError, socket.error):
|
|
e = get_exception()
|
|
# fail if we tried all of the certs but none worked
|
|
if 'connection refused' in str(e).lower():
|
|
raise ConnectionError('Failed to connect to %s:%s.' % (self.hostname, self.port))
|
|
else:
|
|
build_ssl_validation_error(self.hostname, self.port, paths_checked)
|
|
except CertificateError:
|
|
build_ssl_validation_error(self.hostname, self.port, paths_checked)
|
|
|
|
try:
|
|
# cleanup the temp file created, don't worry
|
|
# if it fails for some reason
|
|
os.remove(tmp_ca_cert_path)
|
|
except:
|
|
pass
|
|
|
|
return req
|
|
|
|
https_request = http_request
|
|
|
|
|
|
def maybe_add_ssl_handler(url, validate_certs):
|
|
# FIXME: change the following to use the generic_urlparse function
|
|
# to remove the indexed references for 'parsed'
|
|
parsed = urlparse(url)
|
|
if parsed[0] == 'https' and validate_certs:
|
|
if not HAS_SSL:
|
|
raise NoSSLError('SSL validation is not available in your version of python. You can use validate_certs=False,'
|
|
' however this is unsafe and not recommended')
|
|
|
|
# do the cert validation
|
|
netloc = parsed[1]
|
|
if '@' in netloc:
|
|
netloc = netloc.split('@', 1)[1]
|
|
if ':' in netloc:
|
|
hostname, port = netloc.split(':', 1)
|
|
port = int(port)
|
|
else:
|
|
hostname = netloc
|
|
port = 443
|
|
# create the SSL validation handler and
|
|
# add it to the list of handlers
|
|
return SSLValidationHandler(hostname, port)
|
|
|
|
|
|
def open_url(url, data=None, headers=None, method=None, use_proxy=True,
|
|
force=False, last_mod_time=None, timeout=10, validate_certs=True,
|
|
url_username=None, url_password=None, http_agent=None,
|
|
force_basic_auth=False, follow_redirects='urllib2'):
|
|
'''
|
|
Fetches a file from an HTTP/FTP server using urllib2
|
|
|
|
Does not require the module environment
|
|
'''
|
|
handlers = []
|
|
ssl_handler = maybe_add_ssl_handler(url, validate_certs)
|
|
if ssl_handler:
|
|
handlers.append(ssl_handler)
|
|
|
|
# FIXME: change the following to use the generic_urlparse function
|
|
# to remove the indexed references for 'parsed'
|
|
parsed = urlparse(url)
|
|
if parsed[0] != 'ftp':
|
|
username = url_username
|
|
|
|
if headers is None:
|
|
headers = {}
|
|
|
|
if username:
|
|
password = url_password
|
|
netloc = parsed[1]
|
|
elif '@' in parsed[1]:
|
|
credentials, netloc = parsed[1].split('@', 1)
|
|
if ':' in credentials:
|
|
username, password = credentials.split(':', 1)
|
|
else:
|
|
username = credentials
|
|
password = ''
|
|
|
|
parsed = list(parsed)
|
|
parsed[1] = netloc
|
|
|
|
# reconstruct url without credentials
|
|
url = urlunparse(parsed)
|
|
|
|
if username and not force_basic_auth:
|
|
passman = urllib_request.HTTPPasswordMgrWithDefaultRealm()
|
|
|
|
# this creates a password manager
|
|
passman.add_password(None, netloc, username, password)
|
|
|
|
# because we have put None at the start it will always
|
|
# use this username/password combination for urls
|
|
# for which `theurl` is a super-url
|
|
authhandler = urllib_request.HTTPBasicAuthHandler(passman)
|
|
|
|
# create the AuthHandler
|
|
handlers.append(authhandler)
|
|
|
|
elif username and force_basic_auth:
|
|
headers["Authorization"] = basic_auth_header(username, password)
|
|
|
|
else:
|
|
try:
|
|
rc = netrc.netrc(os.environ.get('NETRC'))
|
|
login = rc.authenticators(parsed[1])
|
|
except IOError:
|
|
login = None
|
|
|
|
if login:
|
|
username, _, password = login
|
|
if username and password:
|
|
headers["Authorization"] = basic_auth_header(username, password)
|
|
|
|
if not use_proxy:
|
|
proxyhandler = urllib_request.ProxyHandler({})
|
|
handlers.append(proxyhandler)
|
|
|
|
if HAS_SSLCONTEXT and not validate_certs:
|
|
# In 2.7.9, the default context validates certificates
|
|
context = SSLContext(ssl.PROTOCOL_SSLv23)
|
|
context.options |= ssl.OP_NO_SSLv2
|
|
context.options |= ssl.OP_NO_SSLv3
|
|
context.verify_mode = ssl.CERT_NONE
|
|
context.check_hostname = False
|
|
handlers.append(urllib_request.HTTPSHandler(context=context))
|
|
|
|
# pre-2.6 versions of python cannot use the custom https
|
|
# handler, since the socket class is lacking create_connection.
|
|
# Some python builds lack HTTPS support.
|
|
if hasattr(socket, 'create_connection') and CustomHTTPSHandler:
|
|
handlers.append(CustomHTTPSHandler)
|
|
|
|
handlers.append(RedirectHandlerFactory(follow_redirects, validate_certs))
|
|
|
|
opener = urllib_request.build_opener(*handlers)
|
|
urllib_request.install_opener(opener)
|
|
|
|
if method:
|
|
if method.upper() not in ('OPTIONS','GET','HEAD','POST','PUT','DELETE','TRACE','CONNECT','PATCH'):
|
|
raise ConnectionError('invalid HTTP request method; %s' % method.upper())
|
|
request = RequestWithMethod(url, method.upper(), data)
|
|
else:
|
|
request = urllib_request.Request(url, data)
|
|
|
|
# add the custom agent header, to help prevent issues
|
|
# with sites that block the default urllib agent string
|
|
request.add_header('User-agent', http_agent)
|
|
|
|
# if we're ok with getting a 304, set the timestamp in the
|
|
# header, otherwise make sure we don't get a cached copy
|
|
if last_mod_time and not force:
|
|
tstamp = last_mod_time.strftime('%a, %d %b %Y %H:%M:%S +0000')
|
|
request.add_header('If-Modified-Since', tstamp)
|
|
else:
|
|
request.add_header('cache-control', 'no-cache')
|
|
|
|
# user defined headers now, which may override things we've set above
|
|
if headers:
|
|
if not isinstance(headers, dict):
|
|
raise ValueError("headers provided to fetch_url() must be a dict")
|
|
for header in headers:
|
|
request.add_header(header, headers[header])
|
|
|
|
urlopen_args = [request, None]
|
|
if sys.version_info >= (2,6,0):
|
|
# urlopen in python prior to 2.6.0 did not
|
|
# have a timeout parameter
|
|
urlopen_args.append(timeout)
|
|
|
|
r = urllib_request.urlopen(*urlopen_args)
|
|
return r
|
|
|
|
#
|
|
# Module-related functions
|
|
#
|
|
|
|
|
|
def basic_auth_header(username, password):
|
|
return "Basic %s" % base64.b64encode("%s:%s" % (username, password))
|
|
|
|
|
|
def url_argument_spec():
|
|
'''
|
|
Creates an argument spec that can be used with any module
|
|
that will be requesting content via urllib/urllib2
|
|
'''
|
|
return dict(
|
|
url = dict(),
|
|
force = dict(default='no', aliases=['thirsty'], type='bool'),
|
|
http_agent = dict(default='ansible-httpget'),
|
|
use_proxy = dict(default='yes', type='bool'),
|
|
validate_certs = dict(default='yes', type='bool'),
|
|
url_username = dict(required=False),
|
|
url_password = dict(required=False),
|
|
force_basic_auth = dict(required=False, type='bool', default='no'),
|
|
|
|
)
|
|
|
|
|
|
def fetch_url(module, url, data=None, headers=None, method=None,
|
|
use_proxy=True, force=False, last_mod_time=None, timeout=10):
|
|
'''
|
|
Fetches a file from an HTTP/FTP server using urllib2. Requires the module environment
|
|
'''
|
|
|
|
if not HAS_URLPARSE:
|
|
module.fail_json(msg='urlparse is not installed')
|
|
|
|
# Get validate_certs from the module params
|
|
validate_certs = module.params.get('validate_certs', True)
|
|
|
|
username = module.params.get('url_username', '')
|
|
password = module.params.get('url_password', '')
|
|
http_agent = module.params.get('http_agent', None)
|
|
force_basic_auth = module.params.get('force_basic_auth', '')
|
|
|
|
follow_redirects = module.params.get('follow_redirects', 'urllib2')
|
|
|
|
r = None
|
|
info = dict(url=url)
|
|
try:
|
|
r = open_url(url, data=data, headers=headers, method=method,
|
|
use_proxy=use_proxy, force=force, last_mod_time=last_mod_time, timeout=timeout,
|
|
validate_certs=validate_certs, url_username=username,
|
|
url_password=password, http_agent=http_agent, force_basic_auth=force_basic_auth,
|
|
follow_redirects=follow_redirects)
|
|
info.update(r.info())
|
|
info.update(dict(msg="OK (%s bytes)" % r.headers.get('Content-Length', 'unknown'), url=r.geturl(), status=r.code))
|
|
except NoSSLError:
|
|
e = get_exception()
|
|
distribution = get_distribution()
|
|
if distribution is not None and distribution.lower() == 'redhat':
|
|
module.fail_json(msg='%s. You can also install python-ssl from EPEL' % str(e))
|
|
else:
|
|
module.fail_json(msg='%s' % str(e))
|
|
except (ConnectionError, ValueError):
|
|
e = get_exception()
|
|
module.fail_json(msg=str(e))
|
|
except urllib_error.HTTPError:
|
|
e = get_exception()
|
|
try:
|
|
body = e.read()
|
|
except AttributeError:
|
|
body = ''
|
|
info.update(dict(msg=str(e), body=body, **e.info()))
|
|
info['status'] = e.code
|
|
except urllib_error.URLError:
|
|
e = get_exception()
|
|
code = int(getattr(e, 'code', -1))
|
|
info.update(dict(msg="Request failed: %s" % str(e), status=code))
|
|
except socket.error:
|
|
e = get_exception()
|
|
info.update(dict(msg="Connection failure: %s" % str(e), status=-1))
|
|
except Exception:
|
|
e = get_exception()
|
|
info.update(dict(msg="An unknown error occurred: %s" % str(e), status=-1))
|
|
|
|
return r, info
|