[英]Chat Client/Server problems on Python
我和我的一個朋友正在使用python進行聊天室,基本上他是在做服務器部分,而我正在做GUI和客戶端部分,我不知道為什么該應用程序會停止工作而沒有任何理由顯示Windows消息“ Python沒有響應”
這是服務器代碼:
#max name length=9999
#max message types=100
#max groupmsg recipients = 9999
#max msg length =8191 characters
import socket
import threading
import sys
def find_users(): #Continously Searches For New Clients
while True:
user, client_address = connector.accept()
threading.Thread(target=new_user, args=(user,)).start()
def new_user(identity):
while True:
print(identity)
name_length=identity.recv(4).decode() #max user name length =9999
username=identity.recv(int(name_length)).decode()
password=identity.recv(8192).decode()
if username in user_details and password == user_details[username]: #correct credentials
client_details[usename]=identity
identity.sendall('y'.encode())
break
elif username in user_details: #incorrect password
print('Please Re-enter The User Details')
identity.sendall('n'.encode())
else: #New user
user_details[username]=password
client_details[username]=identity
identity.sendall('y'.encode())
break
pubmsg(username+' has connected')
active_users.append(username)
identity.settimeout(5)
try:
while True: #waits for incoming messages
msgtype= identity.recv(2).decode() #identifies message type, max types =100
if msgtype == '01': #public message
communication = identity.recv(8192).decode()
pubmsg(str(username + ' >>> ' + communication))
elif msgtype == '02': #private message
direction=[]
recipno=identitiy.recv(4) #defines max group msg recipients
for y in range(0,recipno): #repeats once per recipient
recip_name_length=identity.recv(4).decode()
recip_name=identity.recv(recip_name_length).decode()
direction.append(recip_name)
gmsg=identity.recv(8192).decode()
groupmsg(gmsg,direction)
except Exception as e:
active_users.remove(username)
del client_details[username]
pubmsg(username+' disconnected')
identity.close()
sys.exit()
def pubmsg(Group_message):
print(Group_message)
for person in client_details:
client_details[person].sendall(Group_message.encode())
def groupmsg(Direct_message,recipients,sender):
gmsg=sender +' (to '
for person in recipients: #repeats once per recipient
gmsg+=person+', '
gmsg=gmsg.rstrip(', ')
gmsg=gmsg + ')' + ' >>> ' + Direct_message
for person in recipients:
client_details[person].sendall(gmsg)
user_details={}
client_details={}
active_users=[]
connector = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
print ('Launching Server')
connector.bind(('localhost', 5000)) #Links socket to server address
connector.listen(10)
threading.Thread(target=find_users).start()
對於客戶端和GUI,我僅在其中放置由GUI的“連接”按鈕(正在產生問題的按鈕)調用的功能,GUI使用QT庫
這是該按鈕調用的代碼:
def client_connect(self):
ip_address = str(self.ipText.toPlainText())
port = int(self.portText.toPlainText())
nickname = self.nameText.toPlainText()
password = 'hello'
connect = threading.Thread(target = connection_thread, args = (ip_address, port, nickname, password))
connect.start()
這是線程函數:
def connection_thread(address, port, nickname, password):
nickname = nickname.encode()
password = password.encode()
while True:
try:
c = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
c.connect((address, port))
c.sendall('{0:0=4d}'.format(len(nickname)).encode())
c.sendall(nickname)
c.sendall(password)
answr = c.recv(2).decode()
if answr == 'y':
msg_box("CONNECTED", "Now you are connected to the server.")
while True:
time.sleep(2)
c.sendall('03'.encode())
message_received =c.recv(8192).decode()
self.chatList.addItem(message_received)
except Exception as e:
msg_box("CONNECTION FAILED", "Connection to server failed, try again.")
break
從服務器代碼到達我的客戶端的連接,但是,該客戶端停止工作,而沒有顯示表明我們已連接的msg_box。
當您說connect.join()
您等待線程connect
完成,但是它處於無限循環中,因此直到連接關閉才完成。
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