#!/usr/local/bin/python2.7
# -*- coding: utf-8 -*-

# Copyright 2012 Dag Wieers <dag@wieers.com>
#
# 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 <http://www.gnu.org/licenses/>.

DOCUMENTATION = """
---
author: Dag Wieers
module: mail
short_description: Send an email
description:
  - This module is useful for sending emails from playbooks.
  - One may wonder why automate sending emails?  In complex environments
    there are from time to time processes that cannot be automated, either
    because you lack the authority to make it so, or because not everyone
    agrees to a common approach.
  - If you cannot automate a specific step, but the step is non-blocking,
    sending out an email to the responsible party to make him perform his
    part of the bargain is an elegant way to put the responsibility in
    someone else's lap.
  - Of course sending out a mail can be equally useful as a way to notify
    one or more people in a team that a specific action has been
    (successfully) taken.
version_added: "0.8"
options:
  from:
    description:
      - The email-address the mail is sent from.
    default: root
    required: false
  to:
    description:
      - The email-address(es) the mail is being sent to. This is
        a comma-separated list.
    default: root
    required: false
  cc:
    description:
      - The email-address(es) the mail is being copied to. This is
        a comma-separated list.
    required: false
  bcc:
    description:
      - The email-address(es) the mail is being 'blind' copied to. This is
        a comma-separated list.
    required: false
  subject:
    description:
      - The subject of the email being sent.
    aliases: [ msg ]
    required: true
  body:
    description:
      - The body of the email being sent.
    default: $subject
    required: false
examples:
    - description: "Example playbook sending mail to root"
      code: "local_action: mail msg='System ${ansible_hostname} has been sucessfully provisioned.'"
"""

import smtplib

def main():

    module = AnsibleModule(
        argument_spec = dict(
            host = dict(default='localhost'),
            sender = dict(default='root', aliases=['from']),
            to = dict(default='root', aliases=['recipients']),
            cc = dict(default=None),
            bcc = dict(default=None),
            subject = dict(required=True, aliases=['msg']),
            body = dict(default=None),
        )
    )

    host = module.params.get('host')
    sender = module.params.get('sender')
    recipients = module.params.get('to')
    copies = module.params.get('cc')
    blindcopies = module.params.get('bcc')
    subject = module.params.get('subject')
    body = module.params.get('body')

    if not body:
        body = subject

    try:
        smtp = smtplib.SMTP(host)
    except Exception, e:
        module.fail_json(rc=1, msg='Failed to send mail to server %s: %s' % (host, e))

    content = 'From: %s\n' % sender
    content += 'To: %s\n' % recipients
    if copies:
        content += 'Cc: %s\n' % copies
    content += 'Subject: %s\n\n' % subject
    content += body

    addresses = recipients.split(',')
    if copies:
        addresses += copies.split(',')
    if blindcopies:
        addresses += blindcopies.split(',')

    for address in addresses:
        try:
            smtp.sendmail(sender, address, content)
        except Exception, e:
            module.fail_json(rc=1, msg='Failed to send mail to address %s: %s' % (address, e))

    smtp.quit()

    module.exit_json(changed=False)

# this is magic, see lib/ansible/module_common.py
#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
main()
