I am trying to create a fastagi server for executing some agi scripts. I'm using pyst2 to setup fast agi server. the script running fast agi server is as follows:
#!/usr/bin/env python
"""
.. module:: fastagi
:synopsis: FastAGI service for Asterisk
Requires modified pyst2 to support reading stdin/out/err
Copyright 2011 VOICE1, LLC
By: Ben Davis <ben@voice1-dot-me>
Specification
-------------
"""
import sys
import SocketServer
import asterisk.agi
# import pkg_resources
# PYST_VERSION = pkg_resources.get_distribution("pyst2").version
__verison__ = 0.1
#TODO: Read options from config file.
HOST, PORT = "127.0.0.1", 4573
class FastAGI(SocketServer.StreamRequestHandler):
# Close connections not finished in 5seconds.
timeout = 5
def handle(self):
try:
agi=asterisk.agi.AGI(stdin=self.rfile, stdout=self.wfile,
stderr=sys.stderr)
agi.verbose("pyst2: FastAGI on: {}:{}".format(HOST, PORT))
except TypeError as e:
sys.stderr.write('Unable to connect to agi://{}
{}\n'.format(self.client_address[0], str(e)))
except SocketServer.socket.timeout as e:
sys.stderr.write('Timeout receiving data from
{}\n'.format(self.client_address))
except SocketServer.socket.error as e:
sys.stderr.write('Could not open the socket. Is someting else
listening on this port?\n')
except Exception as e:
sys.stderr.write('An unknown error: {}\n'.format(str(e)))
if __name__ == "__main__":
# server = SocketServer.TCPServer((HOST, PORT), FastAGI)
server = SocketServer.ForkingTCPServer((HOST, PORT), FastAGI)
# Keep server running until CTRL-C is pressed.
server.serve_forever()
Its ok when I use the following context.
exten => 123,1,agi(agi://FASTAGI_IP_address)
but I want to have more than 1 scripts like exten => 123,1,agi(agi://FASTAGI_IP_address/handler_name)
I don't know how to use some handler names in fast agi server codes. I'm new to python so I will be very thankful if I can have some clear guidance on how to add extra handlers in fastagi code.
Found the solution. on the asterisk server I was contacting the Fastagi server using below dialplan:
extension=> s,1,AGI(agi://server-address/handler)
the "handler" showing in above code is returning to fastagi server as "agi.env['agi_network_script']".
a simple example on how to use handler is like the below code:
class FastAGI(SocketServer.StreamRequestHandler):
def handle(self):
try:
agi=asterisk.agi.AGI(stdin=self.rfile, stdout=self.wfile, stderr=sys.stderr)
handler = agi.env['agi_network_script']
### Managing Handler Section ###
if handler == 'handler1':
// Do whatever you wanna do with handler2
elif handler == 'handler2':
// Do whatever you wanna do with handler2
except TypeError as e:
sys.stderr.write('Unable to connect to agi://{} {}\n'.format(self.client_address[0], str(e)))
except SocketServer.socket.timeout as e:
sys.stderr.write('Timeout receiving data from {}\n'.format(self.client_address))
except SocketServer.socket.error as e:
sys.stderr.write('Could not open the socket. Is someting else listening on this port?\n')
except Exception as e:
sys.stderr.write('An unknown error: {}\n'.format(str(e)))
if __name__ == "__main__":
server = SocketServer.ForkingTCPServer((HOST, PORT), FastAGI)
server.serve_forever()