def __init__(self, configfile, daemon=False,
pidfile='/tmp/plivo_rest.pid'):
"""Constructor
Initialize main properties such as daemon, pidfile, config, etc...
This will init the http server that will provide the Rest interface,
the rest server is configured on HTTP_ADDRESS
Extra:
* FS_INBOUND_ADDRESS : Define the event_socket interface to connect to
in order to initialize CallSession with Freeswitch
* FS_OUTBOUND_ADDRESS : Define where on which address listen to
initialize event_socket session with Freeswitch in order to control
new CallSession
"""
self._daemon = daemon
self._run = False
self._pidfile = pidfile
# load config
self._config = helpers.get_config(configfile)
# create flask app
self.app = Flask(self.name)
self.app.secret_key = helpers.get_conf_value(self._config,
'rest_server', 'SECRET_KEY')
self.app.config['MAX_CONTENT_LENGTH'] = 1024 * 1024
# create logger
self.create_logger()
# create rest server
self.fs_inbound_address = helpers.get_conf_value(self._config,
'freeswitch', 'FS_INBOUND_ADDRESS')
fs_host, fs_port = self.fs_inbound_address.split(':', 1)
fs_port = int(fs_port)
fs_password = helpers.get_conf_value(self._config,
'freeswitch', 'FS_PASSWORD')
# get auth id and auth token
self.auth_id = helpers.get_conf_value(self._config,
'rest_server', 'AUTH_ID')
self.auth_token = helpers.get_conf_value(self._config,
'rest_server', 'AUTH_TOKEN')
# get outbound socket host/port
fs_out_address = helpers.get_conf_value(self._config,
'freeswitch', 'FS_OUTBOUND_ADDRESS')
fs_out_host, fs_out_port = fs_out_address.split(':', 1)
# if outbound host is 0.0.0.0, send to 127.0.0.1
if fs_out_host == '0.0.0.0':
fs_out_address = '127.0.0.1:%s' % fs_out_port
# create inbound socket instance
self._rest_inbound_socket = RESTInboundSocket(fs_host, fs_port,
fs_password,
outbound_address=fs_out_address,
auth_id=self.auth_id,
auth_token=self.auth_token,
filter='ALL',
log=self.log)
# expose api functions to flask app
for path, func_desc in urls.URLS.iteritems():
func, methods = func_desc
fn = getattr(self, func.__name__)
self.app.add_url_rule(path, func.__name__, fn, methods=methods)
# create wsgi server
self.http_address = helpers.get_conf_value(self._config,
'rest_server', 'HTTP_ADDRESS')
http_host, http_port = self.http_address.split(':', 1)
http_port = int(http_port)
self.http_server = WSGIServer((http_host, http_port),
self.app, log=self.log)
class PlivoRestServer(PlivoRestApi):
"""Class PlivoRestServer"""
name = "PlivoRestServer"
def __init__(self, configfile, daemon=False,
pidfile='/tmp/plivo_rest.pid'):
"""Constructor
Initialize main properties such as daemon, pidfile, config, etc...
This will init the http server that will provide the Rest interface,
the rest server is configured on HTTP_ADDRESS
Extra:
* FS_INBOUND_ADDRESS : Define the event_socket interface to connect to
in order to initialize CallSession with Freeswitch
* FS_OUTBOUND_ADDRESS : Define where on which address listen to
initialize event_socket session with Freeswitch in order to control
new CallSession
"""
self._daemon = daemon
self._run = False
self._pidfile = pidfile
# load config
self._config = helpers.get_config(configfile)
# create flask app
self.app = Flask(self.name)
self.app.secret_key = helpers.get_conf_value(self._config,
'rest_server', 'SECRET_KEY')
self.app.config['MAX_CONTENT_LENGTH'] = 1024 * 1024
# create logger
self.create_logger()
# create rest server
self.fs_inbound_address = helpers.get_conf_value(self._config,
'freeswitch', 'FS_INBOUND_ADDRESS')
fs_host, fs_port = self.fs_inbound_address.split(':', 1)
fs_port = int(fs_port)
fs_password = helpers.get_conf_value(self._config,
'freeswitch', 'FS_PASSWORD')
# get auth id and auth token
self.auth_id = helpers.get_conf_value(self._config,
'rest_server', 'AUTH_ID')
self.auth_token = helpers.get_conf_value(self._config,
'rest_server', 'AUTH_TOKEN')
# get outbound socket host/port
fs_out_address = helpers.get_conf_value(self._config,
'freeswitch', 'FS_OUTBOUND_ADDRESS')
fs_out_host, fs_out_port = fs_out_address.split(':', 1)
# if outbound host is 0.0.0.0, send to 127.0.0.1
if fs_out_host == '0.0.0.0':
fs_out_address = '127.0.0.1:%s' % fs_out_port
# create inbound socket instance
self._rest_inbound_socket = RESTInboundSocket(fs_host, fs_port,
fs_password,
outbound_address=fs_out_address,
auth_id=self.auth_id,
auth_token=self.auth_token,
filter='ALL',
log=self.log)
# expose api functions to flask app
for path, func_desc in urls.URLS.iteritems():
func, methods = func_desc
fn = getattr(self, func.__name__)
self.app.add_url_rule(path, func.__name__, fn, methods=methods)
# create wsgi server
self.http_address = helpers.get_conf_value(self._config,
'rest_server', 'HTTP_ADDRESS')
http_host, http_port = self.http_address.split(':', 1)
http_port = int(http_port)
self.http_server = WSGIServer((http_host, http_port),
self.app, log=self.log)
def create_logger(self):
"""This will create a logger
Based on the settings in the configuration file,
LOG_TYPE will determine if we will log in file, syslog or stdout
To log in file we use the following setting :
LOG_FILE = /tmp/plivo-rest.log
To log to syslog we have several settings to configure the logging :
* LOG_TYPE = syslog
* SYSLOG_ADDRESS = /dev/log
* SYSLOG_FACILITY = local0
"""
if self._daemon is False:
self.log = StdoutLogger()
self.log.set_debug()
self.app.debug = True
else:
logtype = helpers.get_conf_value(self._config,
'rest_server', 'LOG_TYPE')
if logtype == 'file':
logfile = helpers.get_conf_value(self._config,
'rest_server', 'LOG_FILE')
self.log = FileLogger(logfile)
elif logtype == 'syslog':
syslogaddress = helpers.get_conf_value(self._config,
'rest_server', 'SYSLOG_ADDRESS')
syslogfacility = helpers.get_conf_value(self._config,
'rest_server', 'SYSLOG_FACILITY')
self.log = SysLogger(syslogaddress, syslogfacility)
else:
self.log = StdoutLogger()
debug_mode = helpers.get_conf_value(self._config,
'rest_server', 'DEBUG')
if debug_mode == 'true':
self.log.set_debug()
self.app.debug = True
else:
self.log.set_info()
self.log.name = self.name
self.app._logger = self.log
def do_daemon(self):
"""This will daemonize the current application
Two settings from our configuration files are also used to run the
daemon under a determine user & group.
REST_SERVER_USER : determine the user running the daemon
REST_SERVER_GROUP : determine the group running the daemon
"""
# get user/group from config
user = helpers.get_conf_value(self._config,
'rest_server', 'REST_SERVER_USER')
group = helpers.get_conf_value(self._config,
'rest_server', 'REST_SERVER_GROUP')
if not user or not group:
uid = os.getuid()
user = pwd.getpwuid(uid)[0]
gid = os.getgid()
group = grp.getgrgid(gid)[0]
# daemonize now
plivo.utils.daemonize.daemon(user, group, path='/',
pidfile=self._pidfile,
other_groups=())
def sig_term(self, *args):
"""if we receive a term signal, we will shutdown properly
"""
self.log.warn("Shutdown ...")
self.stop()
sys.exit(0)
def stop(self):
"""Method stop stop the infinite loop from start method
and close the socket
"""
self._run = False
self._rest_inbound_socket.exit()
def start(self):
"""start method is where we decide to :
* catch term signal
* run as daemon
* start the http server
* connect to Freeswitch via our Inbound Socket interface
* wait even if it takes forever, ever, ever, evveeerrr...
"""
self.log.info("RESTServer starting ...")
# catch SIG_TERM
gevent.signal(signal.SIGTERM, self.sig_term)
# run
self._run = True
if self._daemon:
self.do_daemon()
# connection counter
retries = 1
# start http server
self.http_proc = gevent.spawn(self.http_server.serve_forever)
self.log.info("RESTServer started at: 'http://%s'" % self.http_address)
# start inbound socket
try:
while self._run:
try:
self.log.info("Trying to connect to FreeSWITCH at: %s" \
% self.fs_inbound_address)
self._rest_inbound_socket.connect()
# reset retries when connection is a success
retries = 1
self.log.info("Connected to FreeSWITCH")
# serve forever
self._rest_inbound_socket.serve_forever()
except ConnectError, e:
if self._run is False:
break
self.log.error("Connect failed: %s" % str(e))
# sleep after connection failure
sleep_for = retries * 10
self.log.error("Reconnecting in %d seconds" % sleep_for)
gevent.sleep(sleep_for)
# don't sleep more than 120 secs
if retries < 12:
retries += 1
except (SystemExit, KeyboardInterrupt):
pass
# kill http server
self.http_proc.kill()
# finish here
self.log.info("RESTServer Exited")