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967 lines
35 KiB
Python
967 lines
35 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# Copyright: (c) 2014, Red Hat, Inc.
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# Copyright: (c) 2014, Tim Bielawa <tbielawa@redhat.com>
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# Copyright: (c) 2014, Magnus Hedemark <mhedemar@redhat.com>
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# Copyright: (c) 2017, Dag Wieers <dag@wieers.com>
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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ANSIBLE_METADATA = {'metadata_version': '1.1',
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'status': ['preview'],
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'supported_by': 'community'}
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DOCUMENTATION = r'''
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---
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module: xml
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short_description: Manage bits and pieces of XML files or strings
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description:
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- A CRUD-like interface to managing bits of XML files.
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version_added: '2.4'
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options:
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path:
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description:
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- Path to the file to operate on.
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- This file must exist ahead of time.
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- This parameter is required, unless C(xmlstring) is given.
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type: path
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required: yes
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aliases: [ dest, file ]
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xmlstring:
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description:
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- A string containing XML on which to operate.
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- This parameter is required, unless C(path) is given.
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type: str
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required: yes
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xpath:
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description:
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- A valid XPath expression describing the item(s) you want to manipulate.
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- Operates on the document root, C(/), by default.
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type: str
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namespaces:
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description:
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- The namespace C(prefix:uri) mapping for the XPath expression.
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- Needs to be a C(dict), not a C(list) of items.
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type: dict
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state:
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description:
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- Set or remove an xpath selection (node(s), attribute(s)).
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type: str
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choices: [ absent, present ]
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default: present
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aliases: [ ensure ]
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attribute:
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description:
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- The attribute to select when using parameter C(value).
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- This is a string, not prepended with C(@).
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type: raw
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value:
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description:
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- Desired state of the selected attribute.
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- Either a string, or to unset a value, the Python C(None) keyword (YAML Equivalent, C(null)).
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- Elements default to no value (but present).
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- Attributes default to an empty string.
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type: raw
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add_children:
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description:
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- Add additional child-element(s) to a selected element for a given C(xpath).
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- Child elements must be given in a list and each item may be either a string
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(eg. C(children=ansible) to add an empty C(<ansible/>) child element),
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or a hash where the key is an element name and the value is the element value.
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- This parameter requires C(xpath) to be set.
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type: list
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set_children:
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description:
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- Set the child-element(s) of a selected element for a given C(xpath).
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- Removes any existing children.
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- Child elements must be specified as in C(add_children).
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- This parameter requires C(xpath) to be set.
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type: list
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count:
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description:
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- Search for a given C(xpath) and provide the count of any matches.
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- This parameter requires C(xpath) to be set.
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type: bool
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default: no
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print_match:
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description:
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- Search for a given C(xpath) and print out any matches.
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- This parameter requires C(xpath) to be set.
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type: bool
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default: no
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pretty_print:
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description:
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- Pretty print XML output.
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type: bool
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default: no
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content:
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description:
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- Search for a given C(xpath) and get content.
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- This parameter requires C(xpath) to be set.
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type: str
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choices: [ attribute, text ]
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input_type:
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description:
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- Type of input for C(add_children) and C(set_children).
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type: str
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choices: [ xml, yaml ]
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default: yaml
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backup:
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description:
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- Create a backup file including the timestamp information so you can get
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the original file back if you somehow clobbered it incorrectly.
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type: bool
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default: no
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strip_cdata_tags:
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description:
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- Remove CDATA tags surrounding text values.
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- Note that this might break your XML file if text values contain characters that could be interpreted as XML.
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type: bool
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default: no
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version_added: '2.7'
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insertbefore:
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description:
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- Add additional child-element(s) before the first selected element for a given C(xpath).
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- Child elements must be given in a list and each item may be either a string
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(eg. C(children=ansible) to add an empty C(<ansible/>) child element),
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or a hash where the key is an element name and the value is the element value.
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- This parameter requires C(xpath) to be set.
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type: bool
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default: no
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version_added: '2.8'
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insertafter:
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description:
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- Add additional child-element(s) after the last selected element for a given C(xpath).
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- Child elements must be given in a list and each item may be either a string
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(eg. C(children=ansible) to add an empty C(<ansible/>) child element),
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or a hash where the key is an element name and the value is the element value.
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- This parameter requires C(xpath) to be set.
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type: bool
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default: no
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version_added: '2.8'
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requirements:
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- lxml >= 2.3.0
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notes:
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- Use the C(--check) and C(--diff) options when testing your expressions.
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- The diff output is automatically pretty-printed, so may not reflect the actual file content, only the file structure.
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- This module does not handle complicated xpath expressions, so limit xpath selectors to simple expressions.
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- Beware that in case your XML elements are namespaced, you need to use the C(namespaces) parameter, see the examples.
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- Namespaces prefix should be used for all children of an element where namespace is defined, unless another namespace is defined for them.
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seealso:
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- name: Xml module development community wiki
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description: More information related to the development of this xml module.
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link: https://github.com/ansible/community/wiki/Module:-xml
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- name: Introduction to XPath
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description: A brief tutorial on XPath (w3schools.com).
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link: https://www.w3schools.com/xml/xpath_intro.asp
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- name: XPath Reference document
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description: The reference documentation on XSLT/XPath (developer.mozilla.org).
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link: https://developer.mozilla.org/en-US/docs/Web/XPath
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author:
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- Tim Bielawa (@tbielawa)
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- Magnus Hedemark (@magnus919)
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- Dag Wieers (@dagwieers)
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'''
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EXAMPLES = r'''
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# Consider the following XML file:
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#
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# <business type="bar">
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# <name>Tasty Beverage Co.</name>
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# <beers>
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# <beer>Rochefort 10</beer>
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# <beer>St. Bernardus Abbot 12</beer>
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# <beer>Schlitz</beer>
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# </beers>
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# <rating subjective="true">10</rating>
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# <website>
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# <mobilefriendly/>
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# <address>http://tastybeverageco.com</address>
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# </website>
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# </business>
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- name: Remove the 'subjective' attribute of the 'rating' element
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xml:
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path: /foo/bar.xml
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xpath: /business/rating/@subjective
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state: absent
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- name: Set the rating to '11'
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xml:
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path: /foo/bar.xml
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xpath: /business/rating
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value: 11
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# Retrieve and display the number of nodes
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- name: Get count of 'beers' nodes
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xml:
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path: /foo/bar.xml
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xpath: /business/beers/beer
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count: yes
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register: hits
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- debug:
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var: hits.count
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# Example where parent XML nodes are created automatically
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- name: Add a 'phonenumber' element to the 'business' element
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xml:
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path: /foo/bar.xml
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xpath: /business/phonenumber
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value: 555-555-1234
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- name: Add several more beers to the 'beers' element
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xml:
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path: /foo/bar.xml
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xpath: /business/beers
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add_children:
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- beer: Old Rasputin
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- beer: Old Motor Oil
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- beer: Old Curmudgeon
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- name: Add several more beers to the 'beers' element and add them before the 'Rochefort 10' element
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xml:
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path: /foo/bar.xml
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xpath: '/business/beers/beer[text()="Rochefort 10"]'
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insertbefore: yes
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add_children:
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- beer: Old Rasputin
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- beer: Old Motor Oil
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- beer: Old Curmudgeon
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# NOTE: The 'state' defaults to 'present' and 'value' defaults to 'null' for elements
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- name: Add a 'validxhtml' element to the 'website' element
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xml:
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path: /foo/bar.xml
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xpath: /business/website/validxhtml
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- name: Add an empty 'validatedon' attribute to the 'validxhtml' element
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xml:
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path: /foo/bar.xml
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xpath: /business/website/validxhtml/@validatedon
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- name: Add or modify an attribute, add element if needed
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xml:
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path: /foo/bar.xml
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xpath: /business/website/validxhtml
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attribute: validatedon
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value: 1976-08-05
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# How to read an attribute value and access it in Ansible
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- name: Read an element's attribute values
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xml:
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path: /foo/bar.xml
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xpath: /business/website/validxhtml
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content: attribute
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register: xmlresp
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- name: Show an attribute value
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debug:
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var: xmlresp.matches[0].validxhtml.validatedon
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- name: Remove all children from the 'website' element (option 1)
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xml:
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path: /foo/bar.xml
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xpath: /business/website/*
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state: absent
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- name: Remove all children from the 'website' element (option 2)
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xml:
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path: /foo/bar.xml
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xpath: /business/website
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children: []
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# In case of namespaces, like in below XML, they have to be explicitly stated.
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#
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# <foo xmlns="http://x.test" xmlns:attr="http://z.test">
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# <bar>
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# <baz xmlns="http://y.test" attr:my_namespaced_attribute="true" />
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# </bar>
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# </foo>
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# NOTE: There is the prefix 'x' in front of the 'bar' element, too.
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- name: Set namespaced '/x:foo/x:bar/y:baz/@z:my_namespaced_attribute' to 'false'
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xml:
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path: foo.xml
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xpath: /x:foo/x:bar/y:baz
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namespaces:
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x: http://x.test
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y: http://y.test
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z: http://z.test
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attribute: z:my_namespaced_attribute
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value: 'false'
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'''
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RETURN = r'''
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actions:
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description: A dictionary with the original xpath, namespaces and state.
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type: dict
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returned: success
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sample: {xpath: xpath, namespaces: [namespace1, namespace2], state=present}
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backup_file:
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description: The name of the backup file that was created
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type: str
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returned: when backup=yes
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sample: /path/to/file.xml.1942.2017-08-24@14:16:01~
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count:
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description: The count of xpath matches.
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type: int
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returned: when parameter 'count' is set
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sample: 2
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matches:
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description: The xpath matches found.
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type: list
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returned: when parameter 'print_match' is set
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msg:
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description: A message related to the performed action(s).
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type: str
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returned: always
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xmlstring:
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description: An XML string of the resulting output.
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type: str
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returned: when parameter 'xmlstring' is set
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'''
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import copy
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import json
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import os
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import re
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import traceback
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from distutils.version import LooseVersion
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from io import BytesIO
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LXML_IMP_ERR = None
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try:
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from lxml import etree, objectify
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HAS_LXML = True
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except ImportError:
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LXML_IMP_ERR = traceback.format_exc()
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HAS_LXML = False
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from ansible.module_utils.basic import AnsibleModule, json_dict_bytes_to_unicode, missing_required_lib
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from ansible.module_utils.six import iteritems, string_types
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from ansible.module_utils._text import to_bytes, to_native
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from ansible.module_utils.common._collections_compat import MutableMapping
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_IDENT = r"[a-zA-Z-][a-zA-Z0-9_\-\.]*"
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_NSIDENT = _IDENT + "|" + _IDENT + ":" + _IDENT
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# Note: we can't reasonably support the 'if you need to put both ' and " in a string, concatenate
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# strings wrapped by the other delimiter' XPath trick, especially as simple XPath.
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_XPSTR = "('(?:.*)'|\"(?:.*)\")"
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_RE_SPLITSIMPLELAST = re.compile("^(.*)/(" + _NSIDENT + ")$")
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_RE_SPLITSIMPLELASTEQVALUE = re.compile("^(.*)/(" + _NSIDENT + ")/text\\(\\)=" + _XPSTR + "$")
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_RE_SPLITSIMPLEATTRLAST = re.compile("^(.*)/(@(?:" + _NSIDENT + "))$")
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_RE_SPLITSIMPLEATTRLASTEQVALUE = re.compile("^(.*)/(@(?:" + _NSIDENT + "))=" + _XPSTR + "$")
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_RE_SPLITSUBLAST = re.compile("^(.*)/(" + _NSIDENT + ")\\[(.*)\\]$")
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_RE_SPLITONLYEQVALUE = re.compile("^(.*)/text\\(\\)=" + _XPSTR + "$")
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def has_changed(doc):
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orig_obj = etree.tostring(objectify.fromstring(etree.tostring(orig_doc)))
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obj = etree.tostring(objectify.fromstring(etree.tostring(doc)))
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return (orig_obj != obj)
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def do_print_match(module, tree, xpath, namespaces):
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match = tree.xpath(xpath, namespaces=namespaces)
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match_xpaths = []
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for m in match:
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match_xpaths.append(tree.getpath(m))
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match_str = json.dumps(match_xpaths)
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msg = "selector '%s' match: %s" % (xpath, match_str)
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finish(module, tree, xpath, namespaces, changed=False, msg=msg)
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def count_nodes(module, tree, xpath, namespaces):
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""" Return the count of nodes matching the xpath """
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hits = tree.xpath("count(/%s)" % xpath, namespaces=namespaces)
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msg = "found %d nodes" % hits
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finish(module, tree, xpath, namespaces, changed=False, msg=msg, hitcount=int(hits))
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def is_node(tree, xpath, namespaces):
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""" Test if a given xpath matches anything and if that match is a node.
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For now we just assume you're only searching for one specific thing."""
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if xpath_matches(tree, xpath, namespaces):
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# OK, it found something
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match = tree.xpath(xpath, namespaces=namespaces)
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if isinstance(match[0], etree._Element):
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return True
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return False
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def is_attribute(tree, xpath, namespaces):
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""" Test if a given xpath matches and that match is an attribute
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An xpath attribute search will only match one item"""
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if xpath_matches(tree, xpath, namespaces):
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match = tree.xpath(xpath, namespaces=namespaces)
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if isinstance(match[0], etree._ElementStringResult):
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return True
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elif isinstance(match[0], etree._ElementUnicodeResult):
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return True
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return False
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def xpath_matches(tree, xpath, namespaces):
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""" Test if a node exists """
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if tree.xpath(xpath, namespaces=namespaces):
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return True
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return False
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def delete_xpath_target(module, tree, xpath, namespaces):
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""" Delete an attribute or element from a tree """
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try:
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for result in tree.xpath(xpath, namespaces=namespaces):
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# Get the xpath for this result
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if is_attribute(tree, xpath, namespaces):
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# Delete an attribute
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parent = result.getparent()
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# Pop this attribute match out of the parent
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# node's 'attrib' dict by using this match's
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# 'attrname' attribute for the key
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parent.attrib.pop(result.attrname)
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elif is_node(tree, xpath, namespaces):
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# Delete an element
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result.getparent().remove(result)
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else:
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raise Exception("Impossible error")
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except Exception as e:
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module.fail_json(msg="Couldn't delete xpath target: %s (%s)" % (xpath, e))
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else:
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finish(module, tree, xpath, namespaces, changed=True)
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def replace_children_of(children, match):
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for element in list(match):
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match.remove(element)
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match.extend(children)
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def set_target_children_inner(module, tree, xpath, namespaces, children, in_type):
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matches = tree.xpath(xpath, namespaces=namespaces)
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# Create a list of our new children
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children = children_to_nodes(module, children, in_type)
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children_as_string = [etree.tostring(c) for c in children]
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changed = False
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# xpaths always return matches as a list, so....
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for match in matches:
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# Check if elements differ
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if len(list(match)) == len(children):
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for idx, element in enumerate(list(match)):
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if etree.tostring(element) != children_as_string[idx]:
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replace_children_of(children, match)
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changed = True
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break
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else:
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replace_children_of(children, match)
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changed = True
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return changed
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def set_target_children(module, tree, xpath, namespaces, children, in_type):
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changed = set_target_children_inner(module, tree, xpath, namespaces, children, in_type)
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# Write it out
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finish(module, tree, xpath, namespaces, changed=changed)
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def add_target_children(module, tree, xpath, namespaces, children, in_type, insertbefore, insertafter):
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if is_node(tree, xpath, namespaces):
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new_kids = children_to_nodes(module, children, in_type)
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if insertbefore or insertafter:
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insert_target_children(tree, xpath, namespaces, new_kids, insertbefore, insertafter)
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else:
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for node in tree.xpath(xpath, namespaces=namespaces):
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node.extend(new_kids)
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finish(module, tree, xpath, namespaces, changed=True)
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else:
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finish(module, tree, xpath, namespaces)
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def insert_target_children(tree, xpath, namespaces, children, insertbefore, insertafter):
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"""
|
|
Insert the given children before or after the given xpath. If insertbefore is True, it is inserted before the
|
|
first xpath hit, with insertafter, it is inserted after the last xpath hit.
|
|
"""
|
|
insert_target = tree.xpath(xpath, namespaces=namespaces)
|
|
loc_index = 0 if insertbefore else -1
|
|
index_in_parent = insert_target[loc_index].getparent().index(insert_target[loc_index])
|
|
parent = insert_target[0].getparent()
|
|
if insertafter:
|
|
index_in_parent += 1
|
|
for child in children:
|
|
parent.insert(index_in_parent, child)
|
|
index_in_parent += 1
|
|
|
|
|
|
def _extract_xpstr(g):
|
|
return g[1:-1]
|
|
|
|
|
|
def split_xpath_last(xpath):
|
|
"""split an XPath of the form /foo/bar/baz into /foo/bar and baz"""
|
|
xpath = xpath.strip()
|
|
m = _RE_SPLITSIMPLELAST.match(xpath)
|
|
if m:
|
|
# requesting an element to exist
|
|
return (m.group(1), [(m.group(2), None)])
|
|
m = _RE_SPLITSIMPLELASTEQVALUE.match(xpath)
|
|
if m:
|
|
# requesting an element to exist with an inner text
|
|
return (m.group(1), [(m.group(2), _extract_xpstr(m.group(3)))])
|
|
|
|
m = _RE_SPLITSIMPLEATTRLAST.match(xpath)
|
|
if m:
|
|
# requesting an attribute to exist
|
|
return (m.group(1), [(m.group(2), None)])
|
|
m = _RE_SPLITSIMPLEATTRLASTEQVALUE.match(xpath)
|
|
if m:
|
|
# requesting an attribute to exist with a value
|
|
return (m.group(1), [(m.group(2), _extract_xpstr(m.group(3)))])
|
|
|
|
m = _RE_SPLITSUBLAST.match(xpath)
|
|
if m:
|
|
content = [x.strip() for x in m.group(3).split(" and ")]
|
|
return (m.group(1), [('/' + m.group(2), content)])
|
|
|
|
m = _RE_SPLITONLYEQVALUE.match(xpath)
|
|
if m:
|
|
# requesting a change of inner text
|
|
return (m.group(1), [("", _extract_xpstr(m.group(2)))])
|
|
return (xpath, [])
|
|
|
|
|
|
def nsnameToClark(name, namespaces):
|
|
if ":" in name:
|
|
(nsname, rawname) = name.split(":")
|
|
# return "{{%s}}%s" % (namespaces[nsname], rawname)
|
|
return "{{{0}}}{1}".format(namespaces[nsname], rawname)
|
|
|
|
# no namespace name here
|
|
return name
|
|
|
|
|
|
def check_or_make_target(module, tree, xpath, namespaces):
|
|
(inner_xpath, changes) = split_xpath_last(xpath)
|
|
if (inner_xpath == xpath) or (changes is None):
|
|
module.fail_json(msg="Can't process Xpath %s in order to spawn nodes! tree is %s" %
|
|
(xpath, etree.tostring(tree, pretty_print=True)))
|
|
return False
|
|
|
|
changed = False
|
|
|
|
if not is_node(tree, inner_xpath, namespaces):
|
|
changed = check_or_make_target(module, tree, inner_xpath, namespaces)
|
|
|
|
# we test again after calling check_or_make_target
|
|
if is_node(tree, inner_xpath, namespaces) and changes:
|
|
for (eoa, eoa_value) in changes:
|
|
if eoa and eoa[0] != '@' and eoa[0] != '/':
|
|
# implicitly creating an element
|
|
new_kids = children_to_nodes(module, [nsnameToClark(eoa, namespaces)], "yaml")
|
|
if eoa_value:
|
|
for nk in new_kids:
|
|
nk.text = eoa_value
|
|
|
|
for node in tree.xpath(inner_xpath, namespaces=namespaces):
|
|
node.extend(new_kids)
|
|
changed = True
|
|
# module.fail_json(msg="now tree=%s" % etree.tostring(tree, pretty_print=True))
|
|
elif eoa and eoa[0] == '/':
|
|
element = eoa[1:]
|
|
new_kids = children_to_nodes(module, [nsnameToClark(element, namespaces)], "yaml")
|
|
for node in tree.xpath(inner_xpath, namespaces=namespaces):
|
|
node.extend(new_kids)
|
|
for nk in new_kids:
|
|
for subexpr in eoa_value:
|
|
# module.fail_json(msg="element=%s subexpr=%s node=%s now tree=%s" %
|
|
# (element, subexpr, etree.tostring(node, pretty_print=True), etree.tostring(tree, pretty_print=True))
|
|
check_or_make_target(module, nk, "./" + subexpr, namespaces)
|
|
changed = True
|
|
|
|
# module.fail_json(msg="now tree=%s" % etree.tostring(tree, pretty_print=True))
|
|
elif eoa == "":
|
|
for node in tree.xpath(inner_xpath, namespaces=namespaces):
|
|
if (node.text != eoa_value):
|
|
node.text = eoa_value
|
|
changed = True
|
|
|
|
elif eoa and eoa[0] == '@':
|
|
attribute = nsnameToClark(eoa[1:], namespaces)
|
|
|
|
for element in tree.xpath(inner_xpath, namespaces=namespaces):
|
|
changing = (attribute not in element.attrib or element.attrib[attribute] != eoa_value)
|
|
|
|
if changing:
|
|
changed = changed or changing
|
|
if eoa_value is None:
|
|
value = ""
|
|
else:
|
|
value = eoa_value
|
|
element.attrib[attribute] = value
|
|
|
|
# module.fail_json(msg="arf %s changing=%s as curval=%s changed tree=%s" %
|
|
# (xpath, changing, etree.tostring(tree, changing, element[attribute], pretty_print=True)))
|
|
|
|
else:
|
|
module.fail_json(msg="unknown tree transformation=%s" % etree.tostring(tree, pretty_print=True))
|
|
|
|
return changed
|
|
|
|
|
|
def ensure_xpath_exists(module, tree, xpath, namespaces):
|
|
changed = False
|
|
|
|
if not is_node(tree, xpath, namespaces):
|
|
changed = check_or_make_target(module, tree, xpath, namespaces)
|
|
|
|
finish(module, tree, xpath, namespaces, changed)
|
|
|
|
|
|
def set_target_inner(module, tree, xpath, namespaces, attribute, value):
|
|
changed = False
|
|
|
|
try:
|
|
if not is_node(tree, xpath, namespaces):
|
|
changed = check_or_make_target(module, tree, xpath, namespaces)
|
|
except Exception as e:
|
|
missing_namespace = ""
|
|
# NOTE: This checks only the namespaces defined in root element!
|
|
# TODO: Implement a more robust check to check for child namespaces' existence
|
|
if tree.getroot().nsmap and ":" not in xpath:
|
|
missing_namespace = "XML document has namespace(s) defined, but no namespace prefix(es) used in xpath!\n"
|
|
module.fail_json(msg="%sXpath %s causes a failure: %s\n -- tree is %s" %
|
|
(missing_namespace, xpath, e, etree.tostring(tree, pretty_print=True)), exception=traceback.format_exc())
|
|
|
|
if not is_node(tree, xpath, namespaces):
|
|
module.fail_json(msg="Xpath %s does not reference a node! tree is %s" %
|
|
(xpath, etree.tostring(tree, pretty_print=True)))
|
|
|
|
for element in tree.xpath(xpath, namespaces=namespaces):
|
|
if not attribute:
|
|
changed = changed or (element.text != value)
|
|
if element.text != value:
|
|
element.text = value
|
|
else:
|
|
changed = changed or (element.get(attribute) != value)
|
|
if ":" in attribute:
|
|
attr_ns, attr_name = attribute.split(":")
|
|
# attribute = "{{%s}}%s" % (namespaces[attr_ns], attr_name)
|
|
attribute = "{{{0}}}{1}".format(namespaces[attr_ns], attr_name)
|
|
if element.get(attribute) != value:
|
|
element.set(attribute, value)
|
|
|
|
return changed
|
|
|
|
|
|
def set_target(module, tree, xpath, namespaces, attribute, value):
|
|
changed = set_target_inner(module, tree, xpath, namespaces, attribute, value)
|
|
finish(module, tree, xpath, namespaces, changed)
|
|
|
|
|
|
def get_element_text(module, tree, xpath, namespaces):
|
|
if not is_node(tree, xpath, namespaces):
|
|
module.fail_json(msg="Xpath %s does not reference a node!" % xpath)
|
|
|
|
elements = []
|
|
for element in tree.xpath(xpath, namespaces=namespaces):
|
|
elements.append({element.tag: element.text})
|
|
|
|
finish(module, tree, xpath, namespaces, changed=False, msg=len(elements), hitcount=len(elements), matches=elements)
|
|
|
|
|
|
def get_element_attr(module, tree, xpath, namespaces):
|
|
if not is_node(tree, xpath, namespaces):
|
|
module.fail_json(msg="Xpath %s does not reference a node!" % xpath)
|
|
|
|
elements = []
|
|
for element in tree.xpath(xpath, namespaces=namespaces):
|
|
child = {}
|
|
for key in element.keys():
|
|
value = element.get(key)
|
|
child.update({key: value})
|
|
elements.append({element.tag: child})
|
|
|
|
finish(module, tree, xpath, namespaces, changed=False, msg=len(elements), hitcount=len(elements), matches=elements)
|
|
|
|
|
|
def child_to_element(module, child, in_type):
|
|
if in_type == 'xml':
|
|
infile = BytesIO(to_bytes(child, errors='surrogate_or_strict'))
|
|
|
|
try:
|
|
parser = etree.XMLParser()
|
|
node = etree.parse(infile, parser)
|
|
return node.getroot()
|
|
except etree.XMLSyntaxError as e:
|
|
module.fail_json(msg="Error while parsing child element: %s" % e)
|
|
elif in_type == 'yaml':
|
|
if isinstance(child, string_types):
|
|
return etree.Element(child)
|
|
elif isinstance(child, MutableMapping):
|
|
if len(child) > 1:
|
|
module.fail_json(msg="Can only create children from hashes with one key")
|
|
|
|
(key, value) = next(iteritems(child))
|
|
if isinstance(value, MutableMapping):
|
|
children = value.pop('_', None)
|
|
|
|
node = etree.Element(key, value)
|
|
|
|
if children is not None:
|
|
if not isinstance(children, list):
|
|
module.fail_json(msg="Invalid children type: %s, must be list." % type(children))
|
|
|
|
subnodes = children_to_nodes(module, children)
|
|
node.extend(subnodes)
|
|
else:
|
|
node = etree.Element(key)
|
|
node.text = value
|
|
return node
|
|
else:
|
|
module.fail_json(msg="Invalid child type: %s. Children must be either strings or hashes." % type(child))
|
|
else:
|
|
module.fail_json(msg="Invalid child input type: %s. Type must be either xml or yaml." % in_type)
|
|
|
|
|
|
def children_to_nodes(module=None, children=None, type='yaml'):
|
|
"""turn a str/hash/list of str&hash into a list of elements"""
|
|
children = [] if children is None else children
|
|
|
|
return [child_to_element(module, child, type) for child in children]
|
|
|
|
|
|
def make_pretty(module, tree):
|
|
xml_string = etree.tostring(tree, xml_declaration=True, encoding='UTF-8', pretty_print=module.params['pretty_print'])
|
|
|
|
result = dict(
|
|
changed=False,
|
|
)
|
|
|
|
if module.params['path']:
|
|
xml_file = module.params['path']
|
|
with open(xml_file, 'rb') as xml_content:
|
|
if xml_string != xml_content.read():
|
|
result['changed'] = True
|
|
if not module.check_mode:
|
|
if module.params['backup']:
|
|
result['backup_file'] = module.backup_local(module.params['path'])
|
|
tree.write(xml_file, xml_declaration=True, encoding='UTF-8', pretty_print=module.params['pretty_print'])
|
|
|
|
elif module.params['xmlstring']:
|
|
result['xmlstring'] = xml_string
|
|
# NOTE: Modifying a string is not considered a change !
|
|
if xml_string != module.params['xmlstring']:
|
|
result['changed'] = True
|
|
|
|
module.exit_json(**result)
|
|
|
|
|
|
def finish(module, tree, xpath, namespaces, changed=False, msg='', hitcount=0, matches=tuple()):
|
|
|
|
result = dict(
|
|
actions=dict(
|
|
xpath=xpath,
|
|
namespaces=namespaces,
|
|
state=module.params['state']
|
|
),
|
|
changed=has_changed(tree),
|
|
)
|
|
|
|
if module.params['count'] or hitcount:
|
|
result['count'] = hitcount
|
|
|
|
if module.params['print_match'] or matches:
|
|
result['matches'] = matches
|
|
|
|
if msg:
|
|
result['msg'] = msg
|
|
|
|
if result['changed']:
|
|
if module._diff:
|
|
result['diff'] = dict(
|
|
before=etree.tostring(orig_doc, xml_declaration=True, encoding='UTF-8', pretty_print=True),
|
|
after=etree.tostring(tree, xml_declaration=True, encoding='UTF-8', pretty_print=True),
|
|
)
|
|
|
|
if module.params['path'] and not module.check_mode:
|
|
if module.params['backup']:
|
|
result['backup_file'] = module.backup_local(module.params['path'])
|
|
tree.write(module.params['path'], xml_declaration=True, encoding='UTF-8', pretty_print=module.params['pretty_print'])
|
|
|
|
if module.params['xmlstring']:
|
|
result['xmlstring'] = etree.tostring(tree, xml_declaration=True, encoding='UTF-8', pretty_print=module.params['pretty_print'])
|
|
|
|
module.exit_json(**result)
|
|
|
|
|
|
def main():
|
|
module = AnsibleModule(
|
|
argument_spec=dict(
|
|
path=dict(type='path', aliases=['dest', 'file']),
|
|
xmlstring=dict(type='str'),
|
|
xpath=dict(type='str'),
|
|
namespaces=dict(type='dict', default={}),
|
|
state=dict(type='str', default='present', choices=['absent', 'present'], aliases=['ensure']),
|
|
value=dict(type='raw'),
|
|
attribute=dict(type='raw'),
|
|
add_children=dict(type='list'),
|
|
set_children=dict(type='list'),
|
|
count=dict(type='bool', default=False),
|
|
print_match=dict(type='bool', default=False),
|
|
pretty_print=dict(type='bool', default=False),
|
|
content=dict(type='str', choices=['attribute', 'text']),
|
|
input_type=dict(type='str', default='yaml', choices=['xml', 'yaml']),
|
|
backup=dict(type='bool', default=False),
|
|
strip_cdata_tags=dict(type='bool', default=False),
|
|
insertbefore=dict(type='bool', default=False),
|
|
insertafter=dict(type='bool', default=False),
|
|
),
|
|
supports_check_mode=True,
|
|
required_by=dict(
|
|
add_children=['xpath'],
|
|
# TODO: Reinstate this in Ansible v2.12 when we have deprecated the incorrect use below
|
|
# attribute=['value'],
|
|
content=['xpath'],
|
|
set_children=['xpath'],
|
|
value=['xpath'],
|
|
),
|
|
required_if=[
|
|
['count', True, ['xpath']],
|
|
['print_match', True, ['xpath']],
|
|
['insertbefore', True, ['xpath']],
|
|
['insertafter', True, ['xpath']],
|
|
],
|
|
required_one_of=[
|
|
['path', 'xmlstring'],
|
|
['add_children', 'content', 'count', 'pretty_print', 'print_match', 'set_children', 'value'],
|
|
],
|
|
mutually_exclusive=[
|
|
['add_children', 'content', 'count', 'print_match', 'set_children', 'value'],
|
|
['path', 'xmlstring'],
|
|
['insertbefore', 'insertafter'],
|
|
],
|
|
)
|
|
|
|
xml_file = module.params['path']
|
|
xml_string = module.params['xmlstring']
|
|
xpath = module.params['xpath']
|
|
namespaces = module.params['namespaces']
|
|
state = module.params['state']
|
|
value = json_dict_bytes_to_unicode(module.params['value'])
|
|
attribute = module.params['attribute']
|
|
set_children = json_dict_bytes_to_unicode(module.params['set_children'])
|
|
add_children = json_dict_bytes_to_unicode(module.params['add_children'])
|
|
pretty_print = module.params['pretty_print']
|
|
content = module.params['content']
|
|
input_type = module.params['input_type']
|
|
print_match = module.params['print_match']
|
|
count = module.params['count']
|
|
backup = module.params['backup']
|
|
strip_cdata_tags = module.params['strip_cdata_tags']
|
|
insertbefore = module.params['insertbefore']
|
|
insertafter = module.params['insertafter']
|
|
|
|
# Check if we have lxml 2.3.0 or newer installed
|
|
if not HAS_LXML:
|
|
module.fail_json(msg=missing_required_lib("lxml"), exception=LXML_IMP_ERR)
|
|
elif LooseVersion('.'.join(to_native(f) for f in etree.LXML_VERSION)) < LooseVersion('2.3.0'):
|
|
module.fail_json(msg='The xml ansible module requires lxml 2.3.0 or newer installed on the managed machine')
|
|
elif LooseVersion('.'.join(to_native(f) for f in etree.LXML_VERSION)) < LooseVersion('3.0.0'):
|
|
module.warn('Using lxml version lower than 3.0.0 does not guarantee predictable element attribute order.')
|
|
|
|
# Report wrongly used attribute parameter when using content=attribute
|
|
# TODO: Remove this in Ansible v2.12 (and reinstate strict parameter test above) and remove the integration test example
|
|
if content == 'attribute' and attribute is not None:
|
|
module.deprecate("Parameter 'attribute=%s' is ignored when using 'content=attribute' only 'xpath' is used. Please remove entry." % attribute,
|
|
'2.12', collection_name='ansible.builtin')
|
|
|
|
# Check if the file exists
|
|
if xml_string:
|
|
infile = BytesIO(to_bytes(xml_string, errors='surrogate_or_strict'))
|
|
elif os.path.isfile(xml_file):
|
|
infile = open(xml_file, 'rb')
|
|
else:
|
|
module.fail_json(msg="The target XML source '%s' does not exist." % xml_file)
|
|
|
|
# Parse and evaluate xpath expression
|
|
if xpath is not None:
|
|
try:
|
|
etree.XPath(xpath)
|
|
except etree.XPathSyntaxError as e:
|
|
module.fail_json(msg="Syntax error in xpath expression: %s (%s)" % (xpath, e))
|
|
except etree.XPathEvalError as e:
|
|
module.fail_json(msg="Evaluation error in xpath expression: %s (%s)" % (xpath, e))
|
|
|
|
# Try to parse in the target XML file
|
|
try:
|
|
parser = etree.XMLParser(remove_blank_text=pretty_print, strip_cdata=strip_cdata_tags)
|
|
doc = etree.parse(infile, parser)
|
|
except etree.XMLSyntaxError as e:
|
|
module.fail_json(msg="Error while parsing document: %s (%s)" % (xml_file or 'xml_string', e))
|
|
|
|
# Ensure we have the original copy to compare
|
|
global orig_doc
|
|
orig_doc = copy.deepcopy(doc)
|
|
|
|
if print_match:
|
|
do_print_match(module, doc, xpath, namespaces)
|
|
|
|
if count:
|
|
count_nodes(module, doc, xpath, namespaces)
|
|
|
|
if content == 'attribute':
|
|
get_element_attr(module, doc, xpath, namespaces)
|
|
elif content == 'text':
|
|
get_element_text(module, doc, xpath, namespaces)
|
|
|
|
# File exists:
|
|
if state == 'absent':
|
|
# - absent: delete xpath target
|
|
delete_xpath_target(module, doc, xpath, namespaces)
|
|
|
|
# - present: carry on
|
|
|
|
# children && value both set?: should have already aborted by now
|
|
# add_children && set_children both set?: should have already aborted by now
|
|
|
|
# set_children set?
|
|
if set_children:
|
|
set_target_children(module, doc, xpath, namespaces, set_children, input_type)
|
|
|
|
# add_children set?
|
|
if add_children:
|
|
add_target_children(module, doc, xpath, namespaces, add_children, input_type, insertbefore, insertafter)
|
|
|
|
# No?: Carry on
|
|
|
|
# Is the xpath target an attribute selector?
|
|
if value is not None:
|
|
set_target(module, doc, xpath, namespaces, attribute, value)
|
|
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# If an xpath was provided, we need to do something with the data
|
|
if xpath is not None:
|
|
ensure_xpath_exists(module, doc, xpath, namespaces)
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|
|
# Otherwise only reformat the xml data?
|
|
if pretty_print:
|
|
make_pretty(module, doc)
|
|
|
|
module.fail_json(msg="Don't know what to do")
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|