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server.py
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server.py
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import socket
import threading
import json
import select
import argparse
from Variables import States, Client_info
import pickle
import signal
import sys
global thread_list
thread_list = []
def end(signum, frame):
print('Bye~', flush=True)
exit(0)
signal.signal(signal.SIGINT, end)
signal.signal(signal.SIGTERM, end)
#TODO: client database lock, client list lock
'''
class Client_info():
def __init__(self, connect, host, port):
self.connect = connect
self.host = host
self.port = port
self.username = ""
self.password = ""
self.state = States.initial
'''
class thread_accept_client(threading.Thread):
global client_list
global client_database
global thread_list
def __init__(self, listen_socket, client_list):
threading.Thread.__init__(self)
self._stop_event = threading.Event() #For Stoping Thread
self.socket = listen_socket
self.read_list = [listen_socket]
def run(self):
print(u'waiting for connect...',flush=True)
while not self._stop_event.is_set():
readable, writable, errored = select.select(self.read_list, [], [])
for s in readable:
if s is self.socket:
#Todo: client info maintain
connect, (host, port) = self.socket.accept()
print(u'the client %s:%s has connected.' % (host, port))
raw_data = connect.recv(1024)
data = raw_data.decode('utf-8')
print("Second connetion:", data, flush=True)
if(data == "New"):
new_client_info = Client_info(connect, host, port)
client_list.append(new_client_info)
#send_data = States.initial + ":" + "Welcome"
#send_raw_data = send_data.encode("utf-8")
#connect.sendall(send_raw_data)
running = thread_running_client(new_client_info)
running.setDaemon(True)
running.start()
thread_list.append(running)
else:
flag = 0
for idx, info in enumerate(client_list):
if(data == info.username):
client_list[idx].sound_socket = connect
flag = 1
continue
if(flag == 0):
print(data,":Not found. This shouldn't happen.")
'''
else:
recv_data = s.recv(1024)
print(recv_data,flush=True)
recv_data = recv_data.decode('utf-8').split(',')
#recv_data[1] = recv_data[1].replace("\n","")
print(self.database[recv_data[0]],'456',flush=True)
if self.database[recv_data[0]] == recv_data[1]: #Check if user is valid
self.list.append({"host":host,
"port":port,
"usrname":recv_data[0],
"passwd":recv_data[1],
"Socket":connect
})
connect.sendall(b'ACK')
else:
connect.sendall(b'NEG')
'''
def stop(self):
self._stop_event.set()
sys.exit()
class thread_running_client(threading.Thread):
global mic_lock
global client_list
global client_database
def __init__(self, client_info):
threading.Thread.__init__(self)
self.info = client_info
self._stop_event = threading.Event() #For Stoping Thread
self.read_list = [client_info.connect]
self.info.connect.setblocking(True)
def run(self):
print("Connection Start", flush=True)
while not self._stop_event.is_set():
self.readable, self.writable, self.errored = select.select(self.read_list, [], [])
# print(self.readable, flush=True)
if self.info.connect in self.readable:
raw_data = self.info.connect.recv(4096)
#data = raw_data.decode('utf-8')
data = pickle.loads(raw_data)
print("Receive data", data)
#print(self.info.state)
if self.info.state == States.initial:
if data == States.sign_up:
self.info.state = States.sign_up
send_data = self.info.state + ":" + "Ent"
elif data == States.login:
self.info.state = States.login
send_data = self.info.state + ":" + "Ent"
elif data == "quit":
self.info.connect.close()
client_list.remove(self.info)
self._stop_event.set()
return
else:
#send_data = self.info.state + ":" + "NoImpl"
self.info.connect.close()
client_list.remove(self.info)
self._stop_event.set()
#print("not implement")
return
send_raw_data = pickle.dumps(send_data)
#send_raw_data = send_data.encode("utf-8")
self.info.connect.sendall(send_raw_data)
elif self.info.state == States.login :
usr,pwd = data.split(",")
print( usr, pwd)
if usr not in client_database or client_database[usr] != pwd:
send_data = self.info.state + ":" + "Wrong"
self.info.state = States.initial
else:
self.info.state = States.waiting_for_talk
send_data = self.info.state + ":" + "Ent"
self.info.username = usr
self.info.password = pwd
send_raw_data = pickle.dumps(send_data)
#send_raw_data = send_data.encode("utf-8")
self.info.connect.sendall(send_raw_data)
elif self.info.state == States.sign_up:
usr, pwd = data.split(",")
print( usr, pwd)
if usr in client_database:
self.info.state = States.initial
send_data = self.info.state + ":" + "Rej"
else:
self.info.state = States.initial
send_data = self.info.state + ":" + "Ent"
self.info.username = usr
self.info.password = pwd
client_database[usr] = pwd
with open('db.json', 'w', encoding='utf-8') as f: #Save New Database
json.dump(client_database,f)
for x in client_database:
print(x, client_database)
send_raw_data = pickle.dumps(send_data)
#send_raw_data = send_data.encode("utf-8")
self.info.connect.sendall(send_raw_data)
elif self.info.state == States.waiting_for_talk:
#print(data)
if data == "Req":
#print(123)
if mic_lock.acquire(blocking=False):
self.info.state = States.talking
send_data = self.info.state + ":" + "Mic_ACK"
else:
send_data = self.info.state + ":" + "Mic_REJ"
elif data == "quit":
self.info.state = States.initial
send_data = self.info.state + ":" + "Ent"
else:
self.info.connect.close()
client_list.remove(self.info)
self._stop_event.set()
print("Client abnormal disconect.")
return
send_raw_data = pickle.dumps(send_data)
#send_raw_data = send_data.encode("utf-8")
self.info.connect.sendall(send_raw_data)
elif self.info.state == States.talking:
if data == "quit":
self.info.state = States.waiting_for_talk
send_data = self.info.state + ":" + "Ent"
send_raw_data = pickle.dumps(send_data)
#send_raw_data = send_data.encode("utf-8")
self.info.connect.sendall(send_raw_data)
mic_lock.release()
else:
print('receive sound!!!', flush=True)
send_data = "start"
send_raw_data = pickle.dumps(send_data)
self.info.connect.sendall(send_raw_data)
self.readable, self.writable, self.errored = select.select(self.read_list, [], [])
while self.info.connect not in self.readable:
self.readable, self.writable, self.errored = select.select(self.read_list, [], [])
# self.info.connect.setblocking(True)
recv_len = data
# print(type(data), data, flush=True)
data = b''
data += self.info.connect.recv(4096)
# print(len(data), flush=True)
# self.info.connect.setblocking(False)
while len(data) < recv_len:
# data += raw_data
data += self.info.connect.recv(4096)
print('receive len = ', len(data), flush=True)
send_data = "done"
send_raw_data = pickle.dumps(send_data)
self.info.connect.sendall(send_raw_data)
# data = pickle.loads(b''.join(data))
self.thread_broadcasting = []
for client in client_list:
if client.sound_socket == None or client is self.info:
continue
thread = threading.Thread(target = self.broadcast, args=(client.sound_socket, data))
thread.setDaemon(True)
self.thread_broadcasting.append(thread)
thread.start()
for thread in self.thread_broadcasting:
thread.join()
# client.sound_socket.sendall(pickle.dumps(len(data)))
# client.sound_socket.sendall(data)
def broadcast(self, sound_socket, data):
sound_socket.sendall(pickle.dumps(len(data)))
recv_raw_data = sound_socket.recv(1024)
recv_data = pickle.loads(recv_raw_data)
print(recv_data, flush=True)
sound_socket.sendall(data)
recv_raw_data = sound_socket.recv(1024)
recv_data = pickle.loads(recv_raw_data)
print(recv_data, flush=True)
def stop(self):
self._stop_event.set()
sys.exit()
if __name__ == "__main__":
#===== arg parsing ===============
parser = argparse.ArgumentParser()
parser.add_argument("IP", help="The IP the server be")
parser.add_argument("port", type=int, help="port of the IP")
args = parser.parse_args()
print(args.IP, args.port)
#=====Create Socket to listen=====
IP = args.IP
Port = args.port
server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server.bind((IP, Port))
server.listen(5)
#======client data======== (Todo)
client_list = list()
'''
O)
Format: [client_info_1 , client_info_2, ...]
'''
global client_database
with open('db.json', 'r+', encoding='utf-8') as f:
client_database = json.load(f)
for x in client_database:
print(x, client_database[x])
global mic_lock
mic_lock = threading.Lock()
#======Start Listening======
listening = thread_accept_client(server, client_list)
listening.setDaemon(True)
listening.start()
#global thread_list
thread_list.append(listening)
####TODO: ADD SOME CONTROL TO SERVER ex. STOP ALL Client AND QUIT####
# #
#####################################################################
#listening.stop()
while True:
print(thread_list)
s = input()
if s == "quit":
for i in thread_list:
#i.asdasd()
i.stop()
#i.quit()
i.join()
#listening.join()
server.close()