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Drop dependency on httplib2 in the uri module, instead using ansible.module_utils.urls

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This commit is contained in:
Matt Martz 2016-02-05 12:15:39 -06:00
parent 148fa183de
commit 7f206fdfe8
1 changed files with 113 additions and 158 deletions
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271
network/basics/uri.py
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@ -23,9 +23,7 @@
import cgi
import shutil
import tempfile
import base64
import datetime
from distutils.version import LooseVersion
try:
import json
@ -48,7 +46,8 @@ options:
default: null
dest:
description:
- 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.
- 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.
required: false
default: null
user:
@ -63,12 +62,15 @@ options:
default: null
body:
description:
- The body of the http request/response to the web service. If C(body_format) is set to 'json' it will take an already formated JSON string or convert a data structure into JSON.
- The body of the http request/response to the web service. If C(body_format) is set
to 'json' it will take an already formated JSON string or convert a data structure
into JSON.
required: false
default: null
body_format:
description:
- The serialization format of the body. When set to json, encodes the body argument, if needed, and automatically sets the Content-Type header accordingly.
- The serialization format of the body. When set to json, encodes the
body argument, if needed, and automatically sets the Content-Type header accordingly.
required: false
choices: [ "raw", "json" ]
default: raw
@ -81,13 +83,16 @@ options:
default: "GET"
return_content:
description:
- 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.
- 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.
required: false
choices: [ "yes", "no" ]
default: "no"
force_basic_auth:
description:
- httplib2, the library used by the uri module only sends authentication information when a webservice
- The library used by the uri module only sends authentication information when a webservice
responds to an initial request with a 401 status. Since some basic auth services do not properly
send a 401, logins will fail. This option forces the sending of the Basic authentication header
upon initial request.
@ -97,9 +102,9 @@ options:
follow_redirects:
description:
- Whether or not the URI module should follow redirects. C(all) will follow all redirects.
C(safe) will follow only "safe" redirects, where "safe" means that the client is only
C(safe) will follow only "safe" redirects, where "safe" means that the client is only
doing a GET or HEAD on the URI to which it is being redirected. C(none) will not follow
any redirects. Note that C(yes) and C(no) choices are accepted for backwards compatibility,
any redirects. Note that C(yes) and C(no) choices are accepted for backwards compatibility,
where C(yes) is the equivalent of C(all) and C(no) is the equivalent of C(safe). C(yes) and C(no)
are deprecated and will be removed in some future version of Ansible.
required: false
@ -115,12 +120,13 @@ options:
required: false
status_code:
description:
- A valid, numeric, HTTP status code that signifies success of the request. Can also be comma separated list of status codes.
- A valid, numeric, HTTP status code that signifies success of the
request. Can also be comma separated list of status codes.
required: false
default: 200
timeout:
description:
- The socket level timeout in seconds
- The socket level timeout in seconds
required: false
default: 30
HEADER_:
@ -128,8 +134,16 @@ options:
- Any parameter starting with "HEADER_" is a sent with your request as a header.
For example, HEADER_Content-Type="application/json" would send the header
"Content-Type" along with your request with a value of "application/json".
This option is deprecated as of C(2.1) and may be removed in a future
release. Use I(headers) instead.
required: false
default: null
headers:
description:
- Add custom HTTP headers to a request in the format of a YAML hash
required: false
default: null
version_added: '2.1'
others:
description:
- all arguments accepted by the M(file) module also work here
@ -143,10 +157,6 @@ options:
default: 'yes'
choices: ['yes', 'no']
version_added: '1.9.2'
# informational: requirements for nodes
requirements:
- httplib2 >= 0.7.0
author: "Romeo Theriault (@romeotheriault)"
'''
@ -154,7 +164,8 @@ EXAMPLES = '''
# Check that you can connect (GET) to a page and it returns a status 200
- uri: url=http://www.example.com
# Check that a page returns a status 200 and fail if the word AWESOME is not in the page contents.
# Check that a page returns a status 200 and fail if the word AWESOME is not
# in the page contents.
- action: uri url=http://www.example.com return_content=yes
register: webpage
@ -164,22 +175,22 @@ EXAMPLES = '''
# Create a JIRA issue
- uri:
url: https://your.jira.example.com/rest/api/2/issue/
url: https://your.jira.example.com/rest/api/2/issue/
method: POST
user: your_username
password: your_pass
user: your_username
password: your_pass
body: "{{ lookup('file','issue.json') }}"
force_basic_auth: yes
force_basic_auth: yes
status_code: 201
body_format: json
body_format: json
# Login to a form based webpage, then use the returned cookie to
# access the app in later tasks
- uri:
url: https://your.form.based.auth.examle.com/index.php
url: https://your.form.based.auth.examle.com/index.php
method: POST
body: "name=your_username&password=your_password&enter=Sign%20in"
body: "name=your_username&password=your_password&enter=Sign%20in"
status_code: 302
HEADER_Content-Type: "application/x-www-form-urlencoded"
register: login
@ -192,7 +203,7 @@ EXAMPLES = '''
# Queue build of a project in Jenkins:
- uri:
url: "http://{{ jenkins.host }}/job/{{ jenkins.job }}/build?token={{ jenkins.token }}"
url: "http://{{ jenkins.host }}/job/{{ jenkins.job }}/build?token={{ jenkins.token }}"
method: GET
user: "{{ jenkins.user }}"
password: "{{ jenkins.password }}"
@ -201,23 +212,6 @@ EXAMPLES = '''
'''
HAS_HTTPLIB2 = False
try:
import httplib2
if LooseVersion(httplib2.__version__) >= LooseVersion('0.7'):
HAS_HTTPLIB2 = True
except ImportError, AttributeError:
# AttributeError if __version__ is not present
pass
HAS_URLPARSE = True
try:
import urlparse
import socket
except ImportError:
HAS_URLPARSE = False
def write_file(module, url, dest, content):
# create a tempfile with some test content
@ -229,10 +223,10 @@ def write_file(module, url, dest, content):
os.remove(tmpsrc)
module.fail_json(msg="failed to create temporary content file: %s" % str(err))
f.close()
checksum_src = None
checksum_dest = None
# raise an error if there is no tmpsrc file
if not os.path.exists(tmpsrc):
os.remove(tmpsrc)
@ -241,21 +235,21 @@ def write_file(module, url, dest, content):
os.remove(tmpsrc)
module.fail_json( msg="Source %s not readable" % (tmpsrc))
checksum_src = module.sha1(tmpsrc)
# check if there is no dest file
if os.path.exists(dest):
# raise an error if copy has no permission on dest
if not os.access(dest, os.W_OK):
os.remove(tmpsrc)
module.fail_json( msg="Destination %s not writable" % (dest))
module.fail_json(msg="Destination %s not writable" % (dest))
if not os.access(dest, os.R_OK):
os.remove(tmpsrc)
module.fail_json( msg="Destination %s not readable" % (dest))
module.fail_json(msg="Destination %s not readable" % (dest))
checksum_dest = module.sha1(dest)
else:
if not os.access(os.path.dirname(dest), os.W_OK):
os.remove(tmpsrc)
module.fail_json( msg="Destination dir %s not writable" % (os.path.dirname(dest)))
module.fail_json(msg="Destination dir %s not writable" % (os.path.dirname(dest)))
if checksum_src != checksum_dest:
try:
@ -274,55 +268,45 @@ def url_filename(url):
return fn
def uri(module, url, dest, user, password, body, body_format, method, headers, redirects, socket_timeout, validate_certs):
# To debug
#httplib2.debuglevel = 4
def absolute_location(url, location):
"""Attempts to create an absolute URL based on initial URL, and
next URL, specifically in the case of a ``Location`` header.
"""
if '://' in location:
return location
elif location.startswith('/'):
parts = urlparse.urlsplit(url)
base = url.replace(parts[2], '')
return '%s%s' % (base, location)
elif not location.startswith('/'):
base = os.path.dirname(url)
return '%s/%s' % (base, location)
# Handle Redirects
if redirects == "all" or redirects == "yes":
follow_redirects = True
follow_all_redirects = True
elif redirects == "none":
follow_redirects = False
follow_all_redirects = False
else:
follow_redirects = True
follow_all_redirects = False
return location
# Create a Http object and set some default options.
disable_validation = not validate_certs
h = httplib2.Http(disable_ssl_certificate_validation=disable_validation, timeout=socket_timeout)
h.follow_all_redirects = follow_all_redirects
h.follow_redirects = follow_redirects
h.forward_authorization_headers = True
# If they have a username or password verify they have both, then add them to the request
if user is not None and password is None:
module.fail_json(msg="Both a username and password need to be set.")
if password is not None and user is None:
module.fail_json(msg="Both a username and password need to be set.")
if user is not None and password is not None:
h.add_credentials(user, password)
def uri(module, url, dest, body, body_format, method, headers, socket_timeout):
# is dest is set and is a directory, let's check if we get redirected and
# set the filename from that url
redirected = False
resp_redir = {}
redir_info = {}
r = {}
if dest is not None:
dest = os.path.expanduser(dest)
if os.path.isdir(dest):
# first check if we are redirected to a file download
h.follow_redirects=False
# Try the request
try:
resp_redir, content_redir = h.request(url, method=method, body=body, headers=headers)
# if we are redirected, update the url with the location header,
# and update dest with the new url filename
except:
pass
if 'status' in resp_redir and resp_redir['status'] in ["301", "302", "303", "307"]:
url = resp_redir['location']
_, redir_info = fetch_url(module, url, data=body,
headers=headers,
method=method, follow_redirects=None,
timeout=socket_timeout)
# if we are redirected, update the url with the location header,
# and update dest with the new url filename
if redir_info['status'] in (301, 302, 303, 307):
url = redir_info['location']
redirected = True
dest = os.path.join(dest, url_filename(url))
# if destination file already exist, only download if file newer
@ -331,85 +315,54 @@ def uri(module, url, dest, user, password, body, body_format, method, headers, r
tstamp = t.strftime('%a, %d %b %Y %H:%M:%S +0000')
headers['If-Modified-Since'] = tstamp
# do safe redirects now, including 307
h.follow_redirects=follow_redirects
resp, info = fetch_url(module, url, data=body, headers=headers,
method=method, timeout=socket_timeout)
r['redirected'] = redirected or info['url'] != url
r.update(redir_info)
r.update(info)
try:
content = resp.read()
except AttributeError:
content = ''
return r, content, dest
# Make the request, or try to :)
try:
resp, content = h.request(url, method=method, body=body, headers=headers)
r['redirected'] = redirected
r.update(resp_redir)
r.update(resp)
return r, content, dest
except httplib2.RedirectMissingLocation:
module.fail_json(msg="A 3xx redirect response code was provided but no Location: header was provided to point to the new location.")
except httplib2.RedirectLimit:
module.fail_json(msg="The maximum number of redirections was reached without coming to a final URI.")
except httplib2.ServerNotFoundError:
module.fail_json(msg="Unable to resolve the host name given.")
except httplib2.RelativeURIError:
module.fail_json(msg="A relative, as opposed to an absolute URI, was passed in.")
except httplib2.FailedToDecompressContent:
module.fail_json(msg="The headers claimed that the content of the response was compressed but the decompression algorithm applied to the content failed.")
except httplib2.UnimplementedDigestAuthOptionError:
module.fail_json(msg="The server requested a type of Digest authentication that we are unfamiliar with.")
except httplib2.UnimplementedHmacDigestAuthOptionError:
module.fail_json(msg="The server requested a type of HMACDigest authentication that we are unfamiliar with.")
except httplib2.UnimplementedHmacDigestAuthOptionError:
module.fail_json(msg="The server requested a type of HMACDigest authentication that we are unfamiliar with.")
except httplib2.CertificateHostnameMismatch:
module.fail_json(msg="The server's certificate does not match with its hostname.")
except httplib2.SSLHandshakeError:
module.fail_json(msg="Unable to validate server's certificate against available CA certs.")
except socket.error, e:
module.fail_json(msg="Socket error: %s to %s" % (e, url))
def main():
argument_spec = url_argument_spec()
argument_spec.update(dict(
dest = dict(required=False, default=None, type='path'),
url_username = dict(required=False, default=None, aliases=['user']),
url_password = dict(required=False, default=None, aliases=['password']),
body = dict(required=False, default=None),
body_format = dict(required=False, default='raw', choices=['raw', 'json']),
method = dict(required=False, default='GET', choices=['GET', 'POST', 'PUT', 'HEAD', 'DELETE', 'OPTIONS', 'PATCH', 'TRACE', 'CONNECT', 'REFRESH']),
return_content = dict(required=False, default='no', type='bool'),
follow_redirects = dict(required=False, default='safe', choices=['all', 'safe', 'none', 'yes', 'no']),
creates = dict(required=False, default=None, type='path'),
removes = dict(required=False, default=None, type='path'),
status_code = dict(required=False, default=[200], type='list'),
timeout = dict(required=False, default=30, type='int'),
headers = dict(required=False, type='dict')
))
module = AnsibleModule(
argument_spec = dict(
url = dict(required=True),
dest = dict(required=False, default=None, type='path'),
user = dict(required=False, default=None),
password = dict(required=False, default=None),
body = dict(required=False, default=None),
body_format = dict(required=False, default='raw', choices=['raw', 'json']),
method = dict(required=False, default='GET', choices=['GET', 'POST', 'PUT', 'HEAD', 'DELETE', 'OPTIONS', 'PATCH', 'TRACE', 'CONNECT', 'REFRESH']),
return_content = dict(required=False, default='no', type='bool'),
force_basic_auth = dict(required=False, default='no', type='bool'),
follow_redirects = dict(required=False, default='safe', choices=['all', 'safe', 'none', 'yes', 'no']),
creates = dict(required=False, default=None, type='path'),
removes = dict(required=False, default=None, type='path'),
status_code = dict(required=False, default=[200], type='list'),
timeout = dict(required=False, default=30, type='int'),
validate_certs = dict(required=False, default=True, type='bool'),
),
argument_spec=argument_spec,
check_invalid_arguments=False,
add_file_common_args=True
)
if not HAS_HTTPLIB2:
module.fail_json(msg="httplib2 >= 0.7 is not installed")
if not HAS_URLPARSE:
module.fail_json(msg="urlparse is not installed")
url = module.params['url']
user = module.params['user']
password = module.params['password']
body = module.params['body']
body_format = module.params['body_format'].lower()
method = module.params['method']
dest = module.params['dest']
return_content = module.params['return_content']
force_basic_auth = module.params['force_basic_auth']
redirects = module.params['follow_redirects']
creates = module.params['creates']
removes = module.params['removes']
status_code = [int(x) for x in list(module.params['status_code'])]
socket_timeout = module.params['timeout']
validate_certs = module.params['validate_certs']
dict_headers = {}
dict_headers = module.params['headers']
if body_format == 'json':
# Encode the body unless its a string, then assume it is preformatted JSON
@ -417,20 +370,20 @@ def main():
body = json.dumps(body)
dict_headers['Content-Type'] = 'application/json'
# Grab all the http headers. Need this hack since passing multi-values is currently a bit ugly. (e.g. headers='{"Content-Type":"application/json"}')
# Grab all the http headers. Need this hack since passing multi-values is
# currently a bit ugly. (e.g. headers='{"Content-Type":"application/json"}')
for key, value in module.params.iteritems():
if key.startswith("HEADER_"):
skey = key.replace("HEADER_", "")
dict_headers[skey] = value
if creates is not None:
# do not run the command if the line contains creates=filename
# and the filename already exists. This allows idempotence
# of uri executions.
if os.path.exists(creates):
module.exit_json(stdout="skipped, since %s exists" % creates, changed=False, stderr=False, rc=0)
module.exit_json(stdout="skipped, since %s exists" % creates,
changed=False, stderr=False, rc=0)
if removes is not None:
# do not run the command if the line contains removes=filename
@ -439,16 +392,9 @@ def main():
if not os.path.exists(removes):
module.exit_json(stdout="skipped, since %s does not exist" % removes, changed=False, stderr=False, rc=0)
# httplib2 only sends authentication after the server asks for it with a 401.
# Some 'basic auth' servies fail to send a 401 and require the authentication
# up front. This creates the Basic authentication header and sends it immediately.
if force_basic_auth:
dict_headers["Authorization"] = "Basic {0}".format(base64.b64encode("{0}:{1}".format(user, password)))
# Make the request
resp, content, dest = uri(module, url, dest, user, password, body, body_format, method, dict_headers, redirects, socket_timeout, validate_certs)
resp, content, dest = uri(module, url, dest, body, body_format, method,
dict_headers, socket_timeout)
resp['status'] = int(resp['status'])
# Write the file out if requested
@ -467,12 +413,18 @@ def main():
else:
changed = False
# Transmogrify the headers, replacing '-' with '_', since variables dont work with dashes.
# Transmogrify the headers, replacing '-' with '_', since variables dont
# work with dashes.
uresp = {}
for key, value in resp.iteritems():
ukey = key.replace("-", "_")
uresp[ukey] = value
try:
uresp['location'] = absolute_location(url, uresp['location'])
except KeyError:
pass
# Default content_encoding to try
content_encoding = 'utf-8'
if 'content_type' in uresp:
@ -491,7 +443,8 @@ def main():
u_content = unicode(content, content_encoding, errors='replace')
if resp['status'] not in status_code:
module.fail_json(msg="Status code was not " + str(status_code), content=u_content, **uresp)
uresp['msg'] = 'Status code was not %s: %s' % (status_code, uresp.get('msg', ''))
module.fail_json(content=u_content, **uresp)
elif return_content:
module.exit_json(changed=changed, content=u_content, **uresp)
else:
@ -500,5 +453,7 @@ def main():
# import module snippets
from ansible.module_utils.basic import *
from ansible.module_utils.urls import *
if __name__ == '__main__':
main()