Post to Prowl (https://prowl.weks.net) from Python

pyprowl.py

# -*- coding: utf-8 -*-
# pyprowl.py - Post to Prowl (https://prowl.weks.net) from Python.
#
# Copyright (c) 2009 Zachary Voase
# 
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation
# files (the "Software"), to deal in the Software without
# restriction, including without limitation the rights to use,
# copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following
# conditions:
# 
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.

import optparse
import urllib2

from urlobject import URLObject


class ProwlEvent(object):
    
    """Class representing a single prowl event."""
    
    DEFAULT_USER_AGENT = 'PyProwl/1.0'
    
    def __init__(self, application, event, description):
        self.application = application
        self.event = event
        self.description = description
    
    @property
    def url(self):
        url = URLObject(scheme='https', host='prowl.weks.net')
        url = url / 'api' / 'add_notification.php'
        url |= {
            'application': self.application,
            'event': self.event,
            'description': self.description
        }
        
        return url
    
    def request(self, username, password, user_agent=DEFAULT_USER_AGENT):
        request = urllib2.Request(self.url)
        
        request.headers['Authorization'] = 'Basic %s' % (
            (username + ':' + password).encode('base64').strip(),)
        request.headers['User-agent'] = user_agent
        
        return request


OPTION_PARSER = optparse.OptionParser(version='1.0')
OPTION_PARSER.add_option('-u', '--username', help='Prowl username')
OPTION_PARSER.add_option('-p', '--password', help='Prowl password')
OPTION_PARSER.add_option('-a', '--application', default="PyProwl",
    help='Name of source application (default "PyProwl")')
OPTION_PARSER.add_option('-e', '--event', help='Name of event')
OPTION_PARSER.add_option('-d', '--description', help='Description of event')
OPTION_PARSER.add_option('-g', '--user-agent',
    default=ProwlEvent.DEFAULT_USER_AGENT,
    help='User-agent string (default "PyProwl/1.0")')


def main():    
    options, args = OPTION_PARSER.parse_args()
    
    event = ProwlEvent(options.application, options.event,
        options.description)
    request = event.request(options.username, options.password,
        user_agent=options.user_agent)
        
    # Connection
    conn = None
    try:
        conn = urllib2.urlopen(request)
        result = conn.read()
    except urllib2.HTTPError, exc:
        if exc.code == 401:
            print 'Notification posting failed (invalid username or password)'
            raise SystemExit(1)
        else:
            raise
    finally:
        getattr(conn, 'close', lambda: None)()
    
    # If we got this far, the request must have been successful.
    print 'Notification successfully posted.'


if __name__ == '__main__':
    main()