#!/usr/bin/python # -*- coding: utf-8 -*- # (c) 2012, Michael DeHaan # (c) 2012, Jayson Vantuyl # # This file is part of Ansible # # Ansible is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # Ansible is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with Ansible. If not, see . DOCUMENTATION = ''' --- module: apt_key author: Jayson Vantuyl & others version_added: "1.0" short_description: Add or remove an apt key description: - Add or remove an I(apt) key, optionally downloading it notes: - doesn't download the key unless it really needs it - as a sanity check, downloaded key id must match the one specified - best practice is to specify the key id and the url options: id: required: false default: none description: - identifier of key data: required: false default: none description: - keyfile contents file: required: false default: none description: - keyfile path keyring: required: false default: none description: - path to specific keyring file in /etc/apt/trusted.gpg.d version_added: "1.3" url: required: false default: none description: - url to retrieve key from. keyserver: required: false default: none description: - keyserver to retrieve key from. state: required: false choices: [ absent, present ] default: present description: - used to specify if key is being added or revoked validate_certs: description: - If C(no), SSL certificates for the target url will not be validated. This should only be used on personally controlled sites using self-signed certificates. required: false default: 'yes' choices: ['yes', 'no'] ''' EXAMPLES = ''' # Add an Apt signing key, uses whichever key is at the URL - apt_key: url=https://ftp-master.debian.org/keys/archive-key-6.0.asc state=present # Add an Apt signing key, will not download if present - apt_key: id=473041FA url=https://ftp-master.debian.org/keys/archive-key-6.0.asc state=present # Remove an Apt signing key, uses whichever key is at the URL - apt_key: url=https://ftp-master.debian.org/keys/archive-key-6.0.asc state=absent # Remove a Apt specific signing key, leading 0x is valid - apt_key: id=0x473041FA state=absent # Add a key from a file on the Ansible server - apt_key: data="{{ lookup('file', 'apt.gpg') }}" state=present # Add an Apt signing key to a specific keyring file - apt_key: id=473041FA url=https://ftp-master.debian.org/keys/archive-key-6.0.asc keyring=/etc/apt/trusted.gpg.d/debian.gpg state=present ''' # FIXME: standardize into module_common from traceback import format_exc from re import compile as re_compile # FIXME: standardize into module_common from distutils.spawn import find_executable from os import environ from sys import exc_info import traceback match_key = re_compile("^gpg:.*key ([0-9a-fA-F]+):.*$") REQUIRED_EXECUTABLES=['gpg', 'grep', 'apt-key'] def check_missing_binaries(module): missing = [e for e in REQUIRED_EXECUTABLES if not find_executable(e)] if len(missing): module.fail_json(msg="binaries are missing", names=missing) def all_keys(module, keyring): if keyring: cmd = "apt-key --keyring %s list" % keyring else: cmd = "apt-key list" (rc, out, err) = module.run_command(cmd) results = [] lines = out.split('\n') for line in lines: if line.startswith("pub"): tokens = line.split() code = tokens[1] (len_type, real_code) = code.split("/") results.append(real_code) return results def key_present(module, key_id): (rc, out, err) = module.run_command("apt-key list | 2>&1 grep -i -q %s" % pipes.quote(key_id), use_unsafe_shell=True) return rc == 0 def download_key(module, url): # FIXME: move get_url code to common, allow for in-memory D/L, support proxies # and reuse here if url is None: module.fail_json(msg="needed a URL but was not specified") try: rsp, info = fetch_url(module, url) return rsp.read() except Exception: module.fail_json(msg="error getting key id from url: %s" % url, traceback=format_exc()) def import_key(module, keyserver, key_id): cmd = "apt-key adv --keyserver %s --recv %s" % (keyserver, key_id) (rc, out, err) = module.run_command(cmd, check_rc=True) return True def add_key(module, keyfile, keyring, data=None): if data is not None: if keyring: cmd = "apt-key --keyring %s add -" % keyring else: cmd = "apt-key add -" (rc, out, err) = module.run_command(cmd, data=data, check_rc=True, binary_data=True) else: if keyring: cmd = "apt-key --keyring %s add %s" % (keyring, keyfile) else: cmd = "apt-key add %s" % (keyfile) (rc, out, err) = module.run_command(cmd, check_rc=True) return True def remove_key(module, key_id, keyring): # FIXME: use module.run_command, fail at point of error and don't discard useful stdin/stdout if keyring: cmd = 'apt-key --keyring %s del %s' % (keyring, key_id) else: cmd = 'apt-key del %s' % key_id (rc, out, err) = module.run_command(cmd, check_rc=True) return True def main(): module = AnsibleModule( argument_spec=dict( id=dict(required=False, default=None), url=dict(required=False), data=dict(required=False), file=dict(required=False), key=dict(required=False), keyring=dict(required=False), validate_certs=dict(default='yes', type='bool'), keyserver=dict(required=False), state=dict(required=False, choices=['present', 'absent'], default='present') ), supports_check_mode=True ) key_id = module.params['id'] url = module.params['url'] data = module.params['data'] filename = module.params['file'] keyring = module.params['keyring'] state = module.params['state'] keyserver = module.params['keyserver'] changed = False if key_id: try: _ = int(key_id, 16) if key_id.startswith('0x'): key_id = key_id[2:] except ValueError: module.fail_json(msg="Invalid key_id", id=key_id) # FIXME: I think we have a common facility for this, if not, want check_missing_binaries(module) keys = all_keys(module, keyring) return_values = {} if state == 'present': if key_id and key_id in keys: module.exit_json(changed=False) else: if not filename and not data and not keyserver: data = download_key(module, url) if key_id and key_id in keys: module.exit_json(changed=False) else: if module.check_mode: module.exit_json(changed=True) if filename: add_key(module, filename, keyring) elif keyserver: import_key(module, keyserver, key_id) else: add_key(module, "-", keyring, data) changed=False keys2 = all_keys(module, keyring) if len(keys) != len(keys2): changed=True if key_id and not key_id in keys2: module.fail_json(msg="key does not seem to have been added", id=key_id) module.exit_json(changed=changed) elif state == 'absent': if not key_id: module.fail_json(msg="key is required") if key_id in keys: if module.check_mode: module.exit_json(changed=True) if remove_key(module, key_id, keyring): changed=True else: # FIXME: module.fail_json or exit-json immediately at point of failure module.fail_json(msg="error removing key_id", **return_values) module.exit_json(changed=changed, **return_values) # import module snippets from ansible.module_utils.basic import * from ansible.module_utils.urls import * main()