421 lines
16 KiB
Python
421 lines
16 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# (c) 2013, Romeo Theriault <romeot () hawaii.edu>
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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#
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# see examples/playbooks/uri.yml
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import shutil
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import tempfile
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import base64
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import datetime
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try:
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import json
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except ImportError:
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import simplejson as json
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DOCUMENTATION = '''
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---
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module: uri
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short_description: Interacts with webservices
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description:
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- Interacts with HTTP and HTTPS web services and supports Digest, Basic and WSSE
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HTTP authentication mechanisms.
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version_added: "1.1"
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options:
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url:
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description:
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- HTTP or HTTPS URL in the form (http|https)://host.domain[:port]/path
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required: true
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default: null
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aliases: []
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dest:
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description:
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- path of where to download the file to (if desired). If I(dest) is a directory, the basename of the file on the remote server will be used.
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required: false
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default: null
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user:
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description:
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- username for the module to use for Digest, Basic or WSSE authentication.
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required: false
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default: null
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password:
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description:
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- password for the module to use for Digest, Basic or WSSE authentication.
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required: false
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default: null
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body:
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description:
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- The body of the http request/response to the web service.
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required: false
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default: null
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method:
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description:
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- The HTTP method of the request or response.
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required: false
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choices: [ "GET", "POST", "PUT", "HEAD", "DELETE", "OPTIONS" ]
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default: "GET"
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return_content:
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description:
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- Whether or not to return the body of the request as a "content" key in the dictionary result. If the reported Content-type is "application/json", then the JSON is additionally loaded into a key called C(json) in the dictionary results.
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required: false
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choices: [ "yes", "no" ]
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default: "no"
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force_basic_auth:
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description:
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- httplib2, the library used by the uri module only sends authentication information when a webservice
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responds to an initial request with a 401 status. Since some basic auth services do not properly
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send a 401, logins will fail. This option forces the sending of the Basic authentication header
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upon initial request.
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required: false
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choices: [ "yes", "no" ]
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default: "no"
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follow_redirects:
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description:
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- Whether or not the URI module should follow all redirects.
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required: false
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choices: [ "yes", "no" ]
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default: "no"
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creates:
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description:
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- a filename, when it already exists, this step will not be run.
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required: false
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removes:
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description:
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- a filename, when it does not exist, this step will not be run.
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required: false
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status_code:
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description:
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- A valid, numeric, HTTP status code that signifies success of the request.
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required: false
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default: 200
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timeout:
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description:
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- The socket level timeout in seconds
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required: false
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default: 30
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HEADER_:
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description:
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- Any parameter starting with "HEADER_" is a sent with your request as a header.
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For example, HEADER_Content-Type="application/json" would send the header
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"Content-Type" along with your request with a value of "application/json".
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required: false
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default: null
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others:
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description:
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- all arguments accepted by the M(file) module also work here
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required: false
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examples:
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- code: "uri: url=http://www.awesome.com"
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description: "Check that you can connect (GET) to a page and it returns a status 200"
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- code: |
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action: uri url=http://www.awesome.com return_content=yes
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register: webpage
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action: fail
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when_string: '"AWESOME" not in "${webpage.content}"'
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description: Check that a page returns a status 200 and fail if the word AWESOME is not in the page contents.
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- code: |
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action: >
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uri url=https://your.jira.server.com/rest/api/2/issue/
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method=POST user=your_username password=your_pass
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body='$FILE(issue.json)' force_basic_auth=yes
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status_code=201 HEADER_Content-Type="application/json"
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description: "Create a JIRA issue."
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- code: |
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action: >
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uri url=https://your.form.based.auth.app.com/index.php
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method=POST body="name=your_username&password=your_password&enter=Sign%20in"
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status_code=302 HEADER_Content-Type="application/x-www-form-urlencoded"
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register: login
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action: uri url=https://your.form.based.auth.app.com/dashboard.php method=GET return_content=yes HEADER_Cookie="${login.set_cookie}"
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description: "Login to a form based webpage, then use the cookie that got returned to access the app in later tasks."
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# informational: requirements for nodes
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requirements: [ urlparse, httplib2 ]
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author: Romeo Theriault
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'''
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HAS_HTTPLIB2 = True
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try:
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import httplib2
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except ImportError:
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HAS_HTTPLIB2 = False
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HAS_URLPARSE = True
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try:
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import urlparse
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import socket
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except ImportError:
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HAS_URLPARSE = False
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def write_file(module, url, dest, content):
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# create a tempfile with some test content
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fd, tmpsrc = tempfile.mkstemp()
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f = open(tmpsrc, 'wb')
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try:
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f.write(content)
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except Exception, err:
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os.remove(tmpsrc)
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module.fail_json(msg="failed to create temporary content file: %s" % str(err))
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f.close()
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md5sum_src = None
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md5sum_dest = None
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# raise an error if there is no tmpsrc file
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if not os.path.exists(tmpsrc):
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os.remove(tmpsrc)
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module.fail_json(msg="Source %s does not exist" % (tmpsrc))
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if not os.access(tmpsrc, os.R_OK):
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os.remove(tmpsrc)
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module.fail_json( msg="Source %s not readable" % (tmpsrc))
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md5sum_src = module.md5(tmpsrc)
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# check if there is no dest file
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if os.path.exists(dest):
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# raise an error if copy has no permission on dest
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if not os.access(dest, os.W_OK):
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os.remove(tmpsrc)
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module.fail_json( msg="Destination %s not writable" % (dest))
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if not os.access(dest, os.R_OK):
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os.remove(tmpsrc)
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module.fail_json( msg="Destination %s not readable" % (dest))
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md5sum_dest = module.md5(dest)
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else:
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if not os.access(os.path.dirname(dest), os.W_OK):
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os.remove(tmpsrc)
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module.fail_json( msg="Destination dir %s not writable" % (os.path.dirname(dest)))
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if md5sum_src != md5sum_dest:
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try:
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shutil.copyfile(tmpsrc, dest)
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except Exception, err:
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os.remove(tmpsrc)
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module.fail_json(msg="failed to copy %s to %s: %s" % (tmpsrc, dest, str(err)))
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os.remove(tmpsrc)
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def url_filename(url):
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fn = os.path.basename(urlparse.urlsplit(url)[2])
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if fn == '':
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return 'index.html'
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return fn
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def uri(module, url, dest, user, password, body, method, headers, redirects, socket_timeout):
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# To debug
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#httplib2.debug = 4
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# Create a Http object and set some default options.
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h = httplib2.Http(disable_ssl_certificate_validation=True, timeout=socket_timeout)
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h.follow_all_redirects = redirects
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h.forward_authorization_headers = True
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# If they have a username or password verify they have both, then add them to the request
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if user is not None and password is None:
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module.fail_json(msg="Both a username and password need to be set.")
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if password is not None and user is None:
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module.fail_json(msg="Both a username and password need to be set.")
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if user is not None and password is not None:
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h.add_credentials(user, password)
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# is dest is set and is a directory, let's check if we get redirected and
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# set the filename from that url
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redirected = False
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resp_redir = {}
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r = {}
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if dest is not None:
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dest = os.path.expanduser(dest)
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if os.path.isdir(dest):
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# first check if we are redirected to a file download
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h.follow_redirects=False
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# Try the request
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try:
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resp_redir, content_redir = h.request(url, method=method, body=body, headers=headers)
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# if we are redirected, update the url with the location header,
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# and update dest with the new url filename
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except:
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pass
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if resp_redir['status'] in ["301", "302", "303", "307"]:
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url = resp_redir['location']
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redirected = True
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dest = os.path.join(dest, url_filename(url))
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# if destination file already exist, only download if file newer
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if os.path.exists(dest):
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t = datetime.datetime.utcfromtimestamp(os.path.getmtime(dest))
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tstamp = t.strftime('%a, %d %b %Y %H:%M:%S +0000')
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headers['If-Modified-Since'] = tstamp
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# do safe redirects now, including 307
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h.follow_redirects=True
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# Make the request, or try to :)
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try:
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resp, content = h.request(url, method=method, body=body, headers=headers)
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r['redirected'] = redirected
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r.update(resp_redir)
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r.update(resp)
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return r, content, dest
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except httplib2.RedirectMissingLocation:
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module.fail_json(msg="A 3xx redirect response code was provided but no Location: header was provided to point to the new location.")
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except httplib2.RedirectLimit:
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module.fail_json(msg="The maximum number of redirections was reached without coming to a final URI.")
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except httplib2.ServerNotFoundError:
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module.fail_json(msg="Unable to resolve the host name given.")
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except httplib2.RelativeURIError:
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module.fail_json(msg="A relative, as opposed to an absolute URI, was passed in.")
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except httplib2.FailedToDecompressContent:
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module.fail_json(msg="The headers claimed that the content of the response was compressed but the decompression algorithm applied to the content failed.")
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except httplib2.UnimplementedDigestAuthOptionError:
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module.fail_json(msg="The server requested a type of Digest authentication that we are unfamiliar with.")
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except httplib2.UnimplementedHmacDigestAuthOptionError:
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module.fail_json(msg="The server requested a type of HMACDigest authentication that we are unfamiliar with.")
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except httplib2.UnimplementedHmacDigestAuthOptionError:
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module.fail_json(msg="The server requested a type of HMACDigest authentication that we are unfamiliar with.")
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except socket.error, e:
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module.fail_json(msg="Socket error: %s to %s" % (e, url))
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def main():
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module = AnsibleModule(
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argument_spec = dict(
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url = dict(required=True),
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dest = dict(required=False, default=None),
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user = dict(required=False, default=None),
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password = dict(required=False, default=None),
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body = dict(required=False, default=None),
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method = dict(required=False, default='GET', choices=['GET', 'POST', 'PUT', 'HEAD', 'DELETE', 'OPTIONS']),
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return_content = dict(required=False, default='no', type='bool'),
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force_basic_auth = dict(required=False, default='no', type='bool'),
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follow_redirects = dict(required=False, default='no', type='bool'),
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creates = dict(required=False, default=None),
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removes = dict(required=False, default=None),
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status_code = dict(required=False, default="200"),
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timeout = dict(required=False, default=30, type='int'),
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),
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check_invalid_arguments=False,
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add_file_common_args=True
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)
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if not HAS_HTTPLIB2:
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module.fail_json(msg="httplib2 is not installed")
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if not HAS_URLPARSE:
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module.fail_json(msg="urlparse is not installed")
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url = module.params['url']
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user = module.params['user']
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password = module.params['password']
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body = module.params['body']
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method = module.params['method']
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dest = module.params['dest']
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return_content = module.params['return_content']
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force_basic_auth = module.params['force_basic_auth']
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follow_redirects = module.params['follow_redirects']
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creates = module.params['creates']
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removes = module.params['removes']
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status_code = module.params['status_code']
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socket_timeout = module.params['timeout']
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# Grab all the http headers. Need this hack since passing multi-values is currently a bit ugly. (e.g. headers='{"Content-Type":"application/json"}')
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dict_headers = {}
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for key, value in module.params.iteritems():
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if key.startswith("HEADER_"):
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skey = key.replace("HEADER_", "")
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dict_headers[skey] = value
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if creates is not None:
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# do not run the command if the line contains creates=filename
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# and the filename already exists. This allows idempotence
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# of uri executions.
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creates = os.path.expanduser(creates)
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if os.path.exists(creates):
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module.exit_json(stdout="skipped, since %s exists" % creates, skipped=True, changed=False, stderr=False, rc=0)
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if removes is not None:
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# do not run the command if the line contains removes=filename
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# and the filename do not exists. This allows idempotence
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# of uri executions.
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v = os.path.expanduser(removes)
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if not os.path.exists(removes):
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module.exit_json(stdout="skipped, since %s does not exist" % removes, skipped=True, changed=False, stderr=False, rc=0)
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# httplib2 only sends authentication after the server asks for it with a 401.
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# Some 'basic auth' servies fail to send a 401 and require the authentication
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# up front. This creates the Basic authentication header and sends it immediately.
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if force_basic_auth:
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dict_headers["Authorization"] = "Basic {0}".format(base64.b64encode("{0}:{1}".format(user, password)))
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# Redirects
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if follow_redirects:
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redirects = True
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else:
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redirects = False
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# Make the request
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resp, content, dest = uri(module, url, dest, user, password, body, method, dict_headers, redirects, socket_timeout)
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# Write the file out if requested
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if dest is not None:
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if resp['status'] == "304":
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status_code = "304"
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changed = False
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else:
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write_file(module, url, dest, content)
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# allow file attribute changes
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changed = True
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module.params['path'] = dest
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file_args = module.load_file_common_arguments(module.params)
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file_args['path'] = dest
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changed = module.set_file_attributes_if_different(file_args, changed)
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resp['path'] = dest
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# Transmogrify the headers, replacing '-' with '_', since variables dont work with dashes.
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uresp = {}
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for key, value in resp.iteritems():
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ukey = key.replace("-", "_")
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uresp[ukey] = value
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if 'content_type' in uresp:
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if uresp['content_type'].startswith('application/json'):
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try:
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js = json.loads(content)
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uresp['json'] = js
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except:
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pass
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if resp['status'] != status_code:
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module.fail_json(msg="Status code was not " + status_code, content=content, **uresp)
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elif return_content:
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module.exit_json(changed=changed, content=content, **uresp)
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else:
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module.exit_json(changed=changed, **uresp)
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# this is magic, see lib/ansible/module_common.py
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#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
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main()
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