def __init__(self):
"""
Construct a new AMQPClientHandler instance based on the configuration
stored in the environment.
@type env: Environment
@param env: L{Environment} object
"""
env = Environment.getInstance()
self.log = logging.getLogger(__name__)
self.log.debug("initializing AMQP client handler")
self.env = env
# Load configuration
self.url = parseURL(self.env.config.get('amqp.url', None))
self.domain = self.env.config.get('ampq.domain', default="org.clacks")
self.dns_domain = socket.getfqdn().split('.', 1)[1]
# Use zeroconf if there's no URL
if self.url:
o = urlparse(self.url['source'])
else:
url = ZeroconfClient.discover(['_amqps._tcp', '_amqp._tcp'],
domain=self.domain)[0]
o = urlparse(url)
# pylint: disable=E1101
self.domain = o.path[1::]
# Configure system
user = self.env.uuid
key = self.env.config.get('amqp.key')
if key:
# pylint: disable=E1101
self.url = parseURL(
'%s://%s:%s@%s%s' % (o.scheme, user, key, o.netloc, o.path))
else:
self.url = parseURL(url)
# Make proxy connection
self.log.info(
"using service '%s/%s'" % (self.url['host'], self.url['path']))
self.__proxy = AMQPServiceProxy(self.url['source'])
# Set params and go for it
self.reconnect = self.env.config.get('amqp.reconnect', True)
self.reconnect_interval = self.env.config.get(
'amqp.reconnect-interval', 3)
self.reconnect_limit = self.env.config.get('amqp.reconnect-limit', 0)
# Check if credentials are supplied
if not self.env.config.get("amqp.key"):
raise Exception("no key supplied - please join the client")
# Start connection
self.start()
class AMQPClientHandler(AMQPHandler):
"""
This class handles the AMQP connection, incoming and outgoing connections
and allows event callback registration.
"""
_conn = None
__capabilities = {}
__peers = {}
_eventProvider = None
__proxy = None
url = None
joined = False
def __init__(self):
"""
Construct a new AMQPClientHandler instance based on the configuration
stored in the environment.
@type env: Environment
@param env: L{Environment} object
"""
env = Environment.getInstance()
self.log = logging.getLogger(__name__)
self.log.debug("initializing AMQP client handler")
self.env = env
# Load configuration
self.url = parseURL(self.env.config.get('amqp.url', None))
self.domain = self.env.config.get('ampq.domain', default="org.clacks")
self.dns_domain = socket.getfqdn().split('.', 1)[1]
# Use zeroconf if there's no URL
if self.url:
o = urlparse(self.url['source'])
else:
url = ZeroconfClient.discover(['_amqps._tcp', '_amqp._tcp'],
domain=self.domain)[0]
o = urlparse(url)
# pylint: disable=E1101
self.domain = o.path[1::]
# Configure system
user = self.env.uuid
key = self.env.config.get('amqp.key')
if key:
# pylint: disable=E1101
self.url = parseURL(
'%s://%s:%s@%s%s' % (o.scheme, user, key, o.netloc, o.path))
else:
self.url = parseURL(url)
# Make proxy connection
self.log.info(
"using service '%s/%s'" % (self.url['host'], self.url['path']))
self.__proxy = AMQPServiceProxy(self.url['source'])
# Set params and go for it
self.reconnect = self.env.config.get('amqp.reconnect', True)
self.reconnect_interval = self.env.config.get(
'amqp.reconnect-interval', 3)
self.reconnect_limit = self.env.config.get('amqp.reconnect-limit', 0)
# Check if credentials are supplied
if not self.env.config.get("amqp.key"):
raise Exception("no key supplied - please join the client")
# Start connection
self.start()
def get_proxy(self):
return self.__proxy
def sendEvent(self, data):
""" Override original sendEvent. Use proxy instead. """
if not isinstance(data, str):
data = etree.tostring(data)
return self.__proxy.sendEvent(data)
def start(self):
"""
Enable AMQP queueing. This method puts up the event processor and
sets it to "active".
"""
self.log.debug("enabling AMQP queueing")
# Evaluate username
user = self.env.uuid
# Create initial broker connection
url = "%s:%s" % (self.url['host'], self.url['port'])
self._conn = Connection.establish(
url,
reconnect=self.reconnect,
username=user,
password=self.env.config.get("amqp.key"),
transport=self.url['transport'],
reconnect_interval=self.reconnect_interval,
reconnect_limit=self.reconnect_limit)
# Do automatic broker failover if requested
if self.env.config.get('amqp.failover', default=False):
auto_fetch_reconnect_urls(self._conn)
# Create event provider
try:
self._eventProvider = EventProvider(self.env, self._conn)
except NotFound as e:
self.env.log.critical("queue has gone: %s" % str(e))
self.env.requestRestart()
def close(self):
self.log.debug("shutting down AMQP client handler")
if self._conn:
self._conn.close()
def __del__(self):
self.close()
def connect(service_uri='', username='', password=''):
""" Creates a service proxy object from the arguments. """
# Clean arguments
username = username.strip()
password = password.strip()
service_uri = service_uri.strip()
domain = socket.getfqdn().split('.', 1)[1]
if len(service_uri) <= 0:
print(_("Searching service provider..."))
try:
service_uri = ZeroconfClient.discover(['_amqps._tcp', '_amqp._tcp',
'_https._tcp', '_http._tcp'], domain=domain)[0]
except DBusException as e:
print(_("DBUS error: %s") % str(e))
sys.exit(1)
except Exception as e:
print(e.__dict__)
# Test if one argument is still needed.
if len(service_uri) <= 0:
tmp = service_uri
service_uri = raw_input('Service URI: [%s]' % service_uri).strip()
if len(service_uri) <= 0:
service_uri = tmp
# Chek if URL is parsable
url = parseURL(service_uri)
# If we have still no service host, quit, because the connect will fail
# pylint: disable-msg=E1101
if not url:
print(_("Need at least a service URI!"))
sys.exit(1)
# TRANSLATOR: Conected to URL, i.e. https://amqp.local:8080/rpc
print(_("Connected to %s://%s:%s/%s") %
(url['scheme'], url['host'], url['port'], url['path']))
# Check weather to use method parameters or the URI elements.
# If URI username is set and the method username is not set
if url['user']:
username = url['user']
# If URI password is set and the username is set and the method password is not set
if url['password']:
password = url['password']
# If we have still no credentials query for them
if len(username) <= 0:
# TRANSLATOR: This is a prompt - Username [joe]:
username = raw_input(_("Username") + " [%s]: " % getpass.getuser()).strip()
if len(username) <= 0:
username = getpass.getuser()
if len(password) <= 0:
# TRANSLATOR: This is a prompt - Password:
password = getpass.getpass(_("Password") + ': ')
# Create service proxy
if url['scheme'][0:4] == "amqp":
connection = '%s://%s:%s@%s:%s/%s' % (
url['scheme'],
username,
password,
url['host'],
url['port'],
url['path'])
proxy = AMQPServiceProxy(connection)
elif url['scheme'][0:4] == "http":
connection = '%s://%s:%s/%s' % (
url['scheme'],
url['host'],
url['port'],
url['path'])
proxy = JSONServiceProxy(connection)
else:
print(_("The selected protocol is not supported!"))
sys.exit(1)
# Try to log in
try:
if not proxy.login(username, password):
print(_("Login of user '%s' failed") % username)
sys.exit(1)
except Exception, e:
print(e)
sys.exit(1)
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from clacks.common.components import AMQPServiceProxy
# Create connection to service
proxy = AMQPServiceProxy('amqps://*****:*****@amqp.intranet.gonicus.de/org.clacks')
# List methods
print proxy.getMethods()
# Create samba password hash
print proxy.mksmbhash("secret")
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from clacks.common.components import AMQPServiceProxy
from clacks.common.event import EventMaker
from lxml import etree
# Connect to AMQP bus
proxy = AMQPServiceProxy('amqp://*****:*****@localhost/org.clacks')
# Example of building event without direct strings...
e = EventMaker()
status = e.Event(
e.PhoneStatus(
e.CallerId("012345"),
e.ReceiverId("12343424"),
e.Status("busy")
)
)
# ... which in turn needs to be converted to a string
status = etree.tostring(status, pretty_print=True)
# Send it
proxy.sendEvent(status)
