def handle_client_connection(conn, addr):
"""
This method is responsible to Handle a client connection and creating two background threads...One for handling
client request pdus and other for delivering smses to client..
"""
print("Accepted connection from: " + repr(addr))
server_session = SMPPSession('server', conn)
server_session.server_db_store = SMPPServer.db_storage
server_session.server_validate_method = SMPPServer.validate
server_session.server_query_result = SMPPServer.query_result
server_session.server_cancel_result = SMPPServer.cancel_result
server_session.server_replace_result = SMPPServer.replace_result
server_session.sever_fetch_sms = fetch_incoming_sms
server_session.commit_db = commit_db
# background thread 1 to handle client request pdus by recieving them from socket and storing them in dictionary
background_thread = threading.Thread(target=handle_client_requests, args=(server_session, conn))
background_thread.start()
# background thread 2 to check database for messages after every 5secs and deliever smses to client if any
background_thread2 = threading.Thread(target=deliver_sms, args=(server_session, conn))
background_thread2.start()
# parent thread
# current thread for sending responses to client
while server_session.state != SessionState.UNBOUND:
server_session.handle_pdu()
conn.close()
#time.sleep(1)
background_thread.join()
background_thread2.join()
class SMPPClient(object):
'''
Client Class is responsible to encode PDUs and send them to Server and also decode the response get from Server
'''
ip = None
port = None
system_id = None
password = None
system_type = None
bind_mode = None
session = None
sc = None
def __init__(self, ip, port):
self.ip = ip
self.port = port
def connect(self):
try:
self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.socket.connect((self.ip, self.port))
self.sc = SharedConnection(self.socket)
self.sc.is_open = True
self.session = SMPPSession('client', self.sc)
except:
return False
return True
def login(self, bind_mode, system_id, password, system_type):
ret = False
self.bind_mode = bind_mode
self.system_id = system_id
self.password = password
self.system_type = system_type
if SessionState.OPEN == self.session.state:
self.session.bind(self.bind_mode, self.system_id, self.password, self.system_type)
time.sleep(2) # waiting for response for login because other actions can't be performed without login.
self.session.processing_recieved_pdus() # read pdu from dictionary, and change the status of session accordingly if ack is positive.
if self.session.state in [SessionState.BOUND_RX, SessionState.BOUND_TX, SessionState.BOUND_TRX]:
return True
return ret
def connect(self):
try:
self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.socket.connect((self.ip, self.port))
self.sc = SharedConnection(self.socket)
self.sc.is_open = True
self.session = SMPPSession('client', self.sc)
except:
return False
return True