chat.py

from PyQt4.QtCore import *
#from termcolor import colored
from PyQt4.QtGui import *
import sys, socket
import os
try:
    import thread
except ImportError:
    import _thread as thread #Py3K changed it.
try:
    from PyQt4.QtCore import QString
except ImportError:
    QString = str

def app_version():
    msg_box("Application Version", "PyChat v1.0")

def msg_box(title, data):
    w = QWidget()
    QMessageBox.information(w, title, data)

def update_list(self, data):
	print ('\a')
	#os.system('play --no-show-progress --null --channels 1 synth %s sine %f' % (2,5000))
	self.listWidget.addItem(data)

def server_socket(self):
    try:
        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        s.bind(('', 8000))
        s.listen(1)
    except:
        msg_box("Socket Error !!", "Unable To Setup Local Socket. Port In Use")
        return

    while 1:
        conn, addr = s.accept()

        incoming_ip = str(addr[0])
        current_chat_ip = self.lineEdit.text()
        if incoming_ip != current_chat_ip:
            conn.close()
        else:
            data = conn.recv(1024).decode('UTF-8')
            data=str(data)
            update_list(self, data)
            conn.close()

    s.close()

try:
    _fromUtf8 = QString.fromUtf8
except AttributeError:
    _fromUtf8 = lambda s: s

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):

        self.start_server()
        MainWindow.setObjectName(_fromUtf8("MainWindow"))
        MainWindow.resize(662, 448)
        self.centralwidget = QWidget(MainWindow)
        self.centralwidget.setObjectName(_fromUtf8("centralwidget"))
        self.frame = QFrame(self.centralwidget)
        self.frame.setGeometry(QRect(10, 10, 651, 41))
        self.frame.setFrameShape(QFrame.StyledPanel)
        self.frame.setFrameShadow(QFrame.Raised)
        self.frame.setObjectName(_fromUtf8("frame"))
        self.label = QLabel(self.frame)
        self.label.setGeometry(QRect(10, 10, 131, 21))
        self.label.setObjectName(_fromUtf8("label"))
        self.lineEdit = QLineEdit(self.frame)
        self.lineEdit.setGeometry(QRect(90, 10, 161, 21))
        self.lineEdit.setObjectName(_fromUtf8("lineEdit"))
        self.label_2 = QLabel(self.frame)
        self.label_2.setGeometry(QRect(260, 10, 131, 21))
        self.label_2.setObjectName(_fromUtf8("label_2"))
        self.lineEdit_2 = QLineEdit(self.frame)
        self.lineEdit_2.setGeometry(QRect(300, 10, 121, 21))
        self.lineEdit_2.setObjectName(_fromUtf8("lineEdit_2"))
        self.frame_2 = QFrame(self.centralwidget)
        self.frame_2.setGeometry(QRect(10, 60, 301, 321))
        self.frame_2.setFrameShape(QFrame.StyledPanel)
        self.frame_2.setFrameShadow(QFrame.Raised)
        self.frame_2.setObjectName(_fromUtf8("frame_2"))
        self.textEdit = QTextEdit(self.frame_2)
        self.textEdit.setGeometry(QRect(10, 10, 281, 261))
        self.textEdit.setObjectName(_fromUtf8("textEdit"))
        self.pushButton_3 = QPushButton(self.frame_2)
        self.pushButton_3.setGeometry(QRect(10, 280, 171, 31))
        self.pushButton_3.setObjectName(_fromUtf8("pushButton_3"))


        #############################################################
        # Executes When The Send Message Button Is Clicked
        self.pushButton_3.clicked.connect(self.client_send_message)
        ############################################################


        self.pushButton_4 = QPushButton(self.frame_2)
        self.pushButton_4.setGeometry(QRect(190, 280, 93, 31))
        self.pushButton_4.setObjectName(_fromUtf8("pushButton_4"))


        #############################################################
        # Executes When The Clear Logs Button Is Clicked
        self.pushButton_4.clicked.connect(self.clear_logs)
        ##############################################################


        self.frame_3 = QFrame(self.centralwidget)
        self.frame_3.setGeometry(QRect(320, 60, 331, 321))
        self.frame_3.setFrameShape(QFrame.StyledPanel)
        self.frame_3.setFrameShadow(QFrame.Raised)
        self.frame_3.setObjectName(_fromUtf8("frame_3"))
        self.listWidget = QListWidget(self.frame_3)
        self.listWidget.setGeometry(QRect(10, 10, 311, 301))
        self.listWidget.setObjectName(_fromUtf8("listWidget"))
        MainWindow.setCentralWidget(self.centralwidget)
        self.statusbar = QStatusBar(MainWindow)
        self.statusbar.setObjectName(_fromUtf8("statusbar"))
        MainWindow.setStatusBar(self.statusbar)
        self.menubar = QMenuBar(MainWindow)
        self.menubar.setGeometry(QRect(0, 0, 662, 29))
        self.menubar.setObjectName(_fromUtf8("menubar"))
        self.menuAction = QMenu(self.menubar)
        self.menuAction.setObjectName(_fromUtf8("menuAction"))
        MainWindow.setMenuBar(self.menubar)
        self.actionExit = QAction(MainWindow)
        self.actionExit.setObjectName(_fromUtf8("actionExit"))

        #######################################################
        # Executes When The SubMenu Item Version Is Clicked
        self.actionExit.triggered.connect(app_version)
        #######################################################

        self.actionExit_2 = QAction(MainWindow)
        self.actionExit_2.setObjectName(_fromUtf8("actionExit_2"))

        #######################################################
        # Executes When The SubMenu Item Exit Is Clicked
        self.actionExit_2.triggered.connect(qApp.quit)
        #######################################################
        
        self.menuAction.addAction(self.actionExit)
        self.menuAction.addAction(self.actionExit_2)
        self.menubar.addAction(self.menuAction.menuAction())



        self.retranslateUi(MainWindow)

        QMetaObject.connectSlotsByName(MainWindow)


    def clear_logs(self):
        self.listWidget.clear()

    def retranslateUi(self, MainWindow):
        MainWindow.setWindowTitle(QApplication.translate("MainWindow", 
        	"PyChat", None, QApplication.UnicodeUTF8))
        self.label.setText(QApplication.translate("MainWindow", "IP Address:", 
        	None, QApplication.UnicodeUTF8))
        self.label_2.setText(QApplication.translate("MainWindow", "Nick: ", 
        	None, QApplication.UnicodeUTF8))
        self.pushButton_3.setText(QApplication.translate("MainWindow", 
        	"Send Message", None, QApplication.UnicodeUTF8))
        self.pushButton_4.setText(QApplication.translate("MainWindow", 
        	"Clear Logs", None, QApplication.UnicodeUTF8))
        self.menuAction.setTitle(QApplication.translate("MainWindow", 
        	"Menu Actions", None, QApplication.UnicodeUTF8))
        self.actionExit.setText(QApplication.translate("MainWindow", 
        	"Version", None, QApplication.UnicodeUTF8))
        self.actionExit_2.setText(QApplication.translate("MainWindow", 
        	"Exit", None, QApplication.UnicodeUTF8))

    def start_server(self):
        try:
            thread.start_new_thread(server_socket, (self,))
            msg_box("Success", "Server Started Sucessfully")
        except:
            msg_box("Server Error!!","Server cannot be Started")
        #self.pushButton.setEnabled(False)
    
    def client_send_message(self):
        ip_address = self.lineEdit.text()

        nick = self.lineEdit_2.text()
        nick = nick.replace("->","")
        rmessage = self.textEdit.toPlainText()
        rmessage = rmessage.replace("->","")

        rmsg =  nick + " -> " + rmessage
        rmsg2=rmsg
        rmsg=bytes(rmsg)
        c = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        try:
            c.connect((ip_address, 8000))
        except:
            msg_box("Connection Refused", "The Address You Are Trying To Reach Is Currently Unavailable")
            return
        #print (rmsg+"  "+ip_address)
        #c.send(rmsg)
        try:
            c.send(rmsg)
            #rmsg=str(rmsg)
            #print (rmsg2)
            self.listWidget.addItem(rmsg2)
            self.textEdit.setText("")
        except:
            msg_box("Connection Refused", "The Message Cannot Be Sent. End-Point Not Connected !!")
        c.close()

if __name__ == "__main__":
    app = QApplication(sys.argv)
    MainWindow = QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()

    sys.exit(app.exec_())