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#!/ usr/bin/env python#python
# By: Kelcey Damage, 2012 & Kraig Amador, 2012

api_url = 'your_stuff_here'
apiKey = 'your_stuff_here'
secret = 'your_stuff_here'

import hashlib, hmac, string, base64, urllibimporturllib
import json, urllib

class SignedAPICall(object):    def
    def __init__(self, api_url, apiKey, secret):        self
        self.api_url = api_url        selfurl
        self.apiKey = apiKey        selfapiKey
        self.secret = secret

    def    def request(self, args):        args
        args['apiKey'] = self.apiKey        selfapiKey

        self.params = []        self
        self._sort_request(args)        self
        self._create_signature()        self
        self._build_post_request()

    def    def _sort_request(self, args):        keys
        keys = sorted(args.keys())        for

        for key in keys:            self
            self.params.append(key + '=' + urllib.quote_plus(args[key]))

    def    def _create_signature(self):        self
        self.query = '&'.join(self.params)        digest
        digest = hmac.new(            self
            self.secret,            msg
            msg=self.query.lower(),            digestmod
            digestmod=hashlib.sha1).digest()        self

        self.signature = base64.b64encode(digest)

    def    def _build_post_request(self):        self
        self.query += '&signature=' + urllib.quote_plus(self.signature)        self
        self.value = self.api_url + '?' + self.query

class CloudStack(SignedAPICall):    def
    def __getattr__(self, name):        def
        def handlerFunction(*args, **kwargs):            if
            if kwargs:                return
                return self._make_request(name, kwargs)            return
            return self._make_request(name, args[0])        return
        return handlerFunction

    def    def _http_get(self, url):        response
        response = urllib.urlopen(url)        return
        return response.read()

    def    def _make_request(self, command, args):        args
        args['response'] = 'json'        args
        args['command'] = command        self command
        self.request(args)        data
        data = self._http_get(self.value)        #
        # The response is of the format {commandresponse: actual-data}        key
        key = command.lower() + "response"        return
        return json.loads(data)[key]

api = CloudStack(api_url, apiKey, secret)

request = {'listall': 'true'}
result = api.listVirtualMachines(request)
print "count", result['count']
print "api url", api.value