Esempio n. 1
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def get_password(pass_id):
    """This view processes getting of password.

    It processes '/api/password/<int:pass_id>' route and accepts GET requests.
    It takes password id, retrieves it's content and returns it.

    :Parameters:
        - `pass_id`: id of the password to retrieve.

    :Returns:
        template with password's content.
    """
    cur_user = flask_login.current_user
    result = db.get_password(pass_id, cur_user.uid)
    if result:
        resource_name, login, password = result
    else:
        template = get_template('service_message.html')
        return template.render(current_user=cur_user,
                               message='Error! You dont have rights to access '
                                       'this page or page has not been found!')
    decrypted_pass = CRYPTING_OBJ.decrypt(password.encode('utf-8'))
    template = get_template('password.html')
    return template.render(resource_name=resource_name,
                           login=login,
                           password=decrypted_pass,
                           current_user=cur_user)
Esempio n. 2
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def change_org_password(settings_admin_error_label, entries, navigation):
    settings_admin_error_label.configure(fg="red")
    password = db.get_password(user)

    current_password = md5(entries[0].get())
    new_org_pass = entries[1].get()
    confirm_new_org_pass = entries[2].get()

    if current_password != password:
        settings_admin_error_label.configure(text="Invalid password!")
        return

    if new_org_pass != confirm_new_org_pass:
        settings_admin_error_label.configure(text="Passwords do not match!")
        return

    if not password_is_valid(new_org_pass):
        settings_admin_error_label.configure(
            text=
            "Password must contain upper case letter, lower case letter and a number"
        )
        return

    org_id = db.get_org_id(user)

    db.update_org_password(org_id, md5(new_org_pass))
    show_frame(navigation[0], navigation[1], navigation[2], navigation[3])
    settings_admin_error_label.configure(fg="green")
    settings_admin_error_label.configure(text="Updated successfully!")
Esempio n. 3
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def verify_user(username, password):
    """check if the credentials provided are valid"""
    hashed_pass = db.get_password(username)
    if hashed_pass is None:
        return False
    else:
        return security.check_password_hash(hashed_pass, password)
Esempio n. 4
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def show_password():
    data = get_password()
    for x in data:
        print("-" * 40)
        print("URL / Name : " + x[0])
        print("Username / E-mail : " + x[1])
        print("Password : " + decrypt_message(x[2]))
Esempio n. 5
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def login(username, password):
    usernameFound = db.check_username(username)
    if usernameFound == 0:
        return ('Username or password is not correct')
    else:
        userPassword = db.get_password(username)
        if check_password_hash(userPassword, password):
            session["user"] = [usernameFound[0], usernameFound[1]]
            print('Logged in')
            return ('Logged in')
        else:
            return ('Username or password is not correct')
Esempio n. 6
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def update_info(settings_error_label, entries, navigation):
    updated = False
    current_password = md5(entries[0].get())
    new_password = entries[1].get()
    confirm_new_password = entries[2].get()
    org_name = entries[3].get()
    org_pass = entries[4].get()

    password = db.get_password(user)

    if current_password != password:
        settings_error_label.configure(text="Invalid password!")
        return

    if len(new_password) > 0 or len(confirm_new_password) > 0:
        if new_password != confirm_new_password:
            settings_error_label.configure(text="Passwords do not match!")
            return
        elif not password_is_valid(new_password):
            settings_error_label.configure(
                text=
                "Password must contain upper case letter, lower case letter and a number"
            )
            return
        else:
            db.update_password(user, md5(new_password))
            updated = True
    else:
        settings_error_label.configure(text="")

    if len(org_name) > 0 or len(org_pass) > 0:
        org_info = db.get_org_by_name(org_name)
        if org_info is None:
            settings_error_label.configure(text="Organization does not exist!")
        elif org_pass != org_info[2]:
            settings_error_label.configure(
                text="Invalid organization password")
        else:
            updated = True
            db.update_organization(user, org_info[0])
    else:
        settings_error_label.configure(text="")

    if updated:
        show_frame(navigation[0], navigation[1], navigation[2], navigation[3])
        settings_error_label.configure(text="updated successfully")
Esempio n. 7
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    def run(self):
        #locks for thread which will be used for thread synchronization,break the lock
        #when curent peer(which send request to server) succesfully login or logout
        self.lock = threading.Lock()
        print("Connection from : " + self.ip + " : " + str(self.port))
        print("IP Connected: " + self.ip)

        #handle request from another peer to the server thread
        while True:
            try:
                #waits for incoming message from  peers to registry
                #message form: list with 3 element, first is request type,
                #second is user name, thirst is password
                message = self.tcpClientSocket.recv(1024).decode().split()
                logging.info("Received from " + self.ip + " : " +
                             str(self.port) + " -> " + " ".join(message))
                #Register Message
                if message[0] == 'JOIN':
                    #If the username is exist
                    if db.is_account_exists(message[1]):
                        response = "account already exist"
                        print("From-> " + self.ip + " : " + str(self.port) +
                              " " + response)
                        logging.info("Send to " + self.ip + " : " +
                                     str(self.port) + " -> " + response)
                        self.tcpClientSocket.send(response.encode())
                    else:
                        #If not, create an account
                        db.register(message[1], message[2])
                        response = 'successfully register'
                        logging.info("Send to " + self.ip + " : " +
                                     str(self.port) + " -> " + response)
                        self.tcpClientSocket.send(response.encode())
                #Login Message
                elif message[0] == 'LOGIN':
                    #Handle login using non-exist account
                    if not db.is_account_exists(message[1]):
                        response = "account not exist"
                        logging.info("Send to " + self.ip + ":" +
                                     str(self.port) + " -> " + response)
                        self.tcpClientSocket.send(response.encode())
                    #If account exist, but already online
                    elif db.is_account_online(message[1]):
                        response = 'account is online'
                        logging.info("Send to " + self.ip + ":" +
                                     str(self.port) + " -> " + response)
                        self.tcpClientSocket.send(response.encode())
                    #account exist and not online, handle password
                    else:
                        truePass = db.get_password(message[1])
                        #password correct
                        if truePass == message[2]:
                            self.username = message[1]
                            self.lock.acquire()
                            try:
                                tcpThreads[self.username] = self
                            finally:
                                self.lock.release()

                            db.user_login(message[1], self.ip, self.port)
                            #login succes, so create server thread for this peer,
                            # also set timer for this thread
                            response = 'succesfully login'
                            logging.info("Send to " + self.ip + ":" +
                                         str(self.port) + " -> " + response)
                            self.tcpClientSocket.send(response.encode())
                            self.ServerThread = ServerThread(
                                self.username, self.tcpClientSocket)
                            self.ServerThread.start()
                            self.ServerThread.timer.start()
                        else:
                            response = "incorect password"
                            logging.info("Send to " + self.ip + ":" +
                                         str(self.port) + " -> " + response)
                            self.tcpClientSocket.send(response.encode())

                elif message[0] == 'LOGOUT':
                    #user is online =>removes from online_peers list

                    if len(message) > 1 and message[
                            1] is not None and db.is_account_online(
                                message[1]):
                        db.user_logout(message[1])
                        self.lock.acquire()
                        try:
                            if message[1] in tcpThreads:
                                del tcpThreads[message[1]]
                        finally:
                            self.lock.release()
                        print(self.ip + ":" + str(self.port) +
                              " is logged out")
                        self.tcpClientSocket.close()
                        self.ServerThread.timer.cancel()
                        break

                    else:
                        self.tcpClientSocket.close()
                        break

                #check if an arbitary user is online or not
                elif message[0] == 'CHECKONL':
                    if db.is_account_exists(message[1]):
                        if db.is_account_online(message[1]):
                            peer_info = db.get_peer_ip_port(message[1])
                            response = "search successfull " + peer_info[
                                0] + ":" + peer_info[1]
                            logging.info("Send to " + self.ip + ":" +
                                         str(self.port) + " -> " + response)
                            self.tcpClientSocket.send(response.encode())

                        else:
                            response = 'user does not online'
                            logging.info("Send to " + self.ip + ":" +
                                         str(self.port) + " -> " + response)
                            self.tcpClientSocket.send(response.encode())

                    else:
                        response = "search-user-not-found"
                        logging.info("Send to " + self.ip + ":" +
                                     str(self.port) + " -> " + response)
                        self.tcpClientSocket.send(response.encode())

            except OSError as oErr:
                logging.error("OSError: {0}".format(oErr))
Esempio n. 8
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    def run(self):
        #locks for thread which will be used for thread synchronization,break the lock
        #when curent peer(which send request to server) succesfully login or logout
        self.lock = threading.Lock()
        print("Connection from : " + self.ip + " : " + str(self.port))
        print("IP Connected: " + self.ip)

        #handle request from another peer to the server thread
        while True:
            try:
                #waits for incoming message from  peers to registry
                #message form: list with 3 element, first is request type,
                #second is user name, thirst is password
                message = self.tcpClientSocket.recv(1024).decode().split()

                logging.info("Received from " + self.ip + " : " +
                             str(self.port) + " -> " + " ".join(message))
                if len(message) == 0:
                    break
                #Register Message
                if message[0] == 'JOIN':
                    #If the username is exist
                    if db.is_account_exists(message[1]):
                        response = "account already exist"
                        print("From-> " + self.ip + " : " + str(self.port) +
                              " " + response)
                        logging.info("Send to " + self.ip + " : " +
                                     str(self.port) + " -> " + response)
                        self.tcpClientSocket.send(response.encode())
                    else:
                        #If not, create an account
                        db.register(message[1], message[2])
                        response = 'successfully register'
                        logging.info("Send to " + self.ip + " : " +
                                     str(self.port) + " -> " + response)
                        self.tcpClientSocket.send(response.encode())
                #Login Message
                elif message[0] == 'LOGIN':
                    #Handle login using non-exist account
                    if not db.is_account_exists(message[1]):
                        response = "account not exist"
                        logging.info("Send to " + self.ip + ":" +
                                     str(self.port) + " -> " + response)
                        self.tcpClientSocket.send(response.encode())
                    #If account exist, but already online
                    elif db.is_account_online(message[1]):
                        response = 'account is online'
                        logging.info("Send to " + self.ip + ":" +
                                     str(self.port) + " -> " + response)
                        self.tcpClientSocket.send(response.encode())
                    #account exist and not online, handle password
                    else:
                        truePass = db.get_password(message[1])
                        #password correct
                        if truePass == message[2]:
                            self.username = message[1]
                            self.lock.acquire()
                            try:
                                tcpThreads[self.username] = self
                            finally:
                                self.lock.release()

                            db.user_login(message[1], self.ip, str(message[3]))
                            #login succes, so create server thread for this peer,
                            # also set timer for this thread
                            response = 'succesfully login'
                            logging.info("Send to " + self.ip + ":" +
                                         str(self.port) + " -> " + response)
                            self.tcpClientSocket.send(response.encode())
                            self.ServerThread = ServerThread(
                                self.username, self.tcpClientSocket)
                            self.ServerThread.start()
                            self.ServerThread.timer.start()
                        else:
                            response = "incorect password"
                            logging.info("Send to " + self.ip + ":" +
                                         str(self.port) + " -> " + response)
                            self.tcpClientSocket.send(response.encode())

                #param :type. username of logout account
                elif message[0] == 'LOGOUT':
                    #user is online =>removes from online_peers list

                    if len(message) > 1 and message[
                            1] is not None and db.is_account_online(
                                message[1]):
                        db.user_logout(message[1])
                        self.lock.acquire()
                        try:
                            if message[1] in tcpThreads:
                                del tcpThreads[message[1]]
                        finally:
                            self.lock.release()
                        print(self.ip + ":" + str(self.port) +
                              " is logged out")
                        logging.info("Send to " + self.ip + ":" +
                                     str(self.port) + " ->  is logout")
                        self.tcpClientSocket.close()
                        self.ServerThread.timer.cancel()
                        break

                    else:
                        self.tcpClientSocket.close()
                        break

            #find online friend
                elif message[0] == 'CHECKONL':
                    if db.is_account_exists(
                            message[1]) and db.is_account_online(message[1]):
                        ListOnlineFriends = db.get_online_friends(message[1])
                        if len(ListOnlineFriends) == 0:
                            response = 'No firend of you are online now'
                        else:
                            response = "list of online friends are "
                            for i in ListOnlineFriends:
                                response += i + " "
                        logging.info("Send to " + self.ip + ":" +
                                     str(self.port) + " -> " + response)
                        self.tcpClientSocket.send(response.encode())

                #param: type,username(peer want to add),username(of peer being added)
                elif message[0] == 'ADDFRIEND':
                    if len(message) > 1 and message[1] and message[
                            2] and db.is_account_exists(
                                message[2]) and db.is_account_online(
                                    message[1]):
                        response = db.insert_friend_request(
                            message[2], message[1])
                        if response == 'AlreadyFriend':
                            response = 'You and ' + message[
                                1] + " are already friend"
                        elif response == 'AlreadyAskFriendRequest':
                            response = 'You have sent a request for ' + message[
                                2]
                        else:
                            response = "your request is successfully sending to " + message[
                                2]
                            logging.info("Send to " + self.ip + ":" +
                                         str(self.port) + " -> " + response)
                        self.tcpClientSocket.send(response.encode())
                    else:
                        response = 'user does not exist'
                        logging.info("Send to " + self.ip + ":" +
                                     str(self.port) + " -> " + response)
                        self.tcpClientSocket.send(response.encode())
                # param: type,username (peer THAT ACCEPT),username(peer being ACCEPTED)
                elif message[0] == 'ACCEPTFRIEND':
                    if len(message) > 1 and message[1] and message[
                            2] and db.is_account_exists(
                                message[2]) and db.is_account_online(
                                    message[1]):
                        if db.accept_friend_request(
                                message[1], message[2]) == 'NotInRequest':
                            response = message[2] + "not in your request list"

                        else:
                            db.make_friend(message[1], message[2])
                            response = "accept successfull you and " + message[
                                2] + " are friend"
                        logging.info("Send to " + self.ip + ":" +
                                     str(self.port) + " -> " + response)
                        self.tcpClientSocket.send(response.encode())
                    else:
                        response = 'user does not exist'
                        logging.info("Send to " + self.ip + ":" +
                                     str(self.port) + " -> " + response)
                        self.tcpClientSocket.send(response.encode())

                elif message[0] == 'VIEWREQUESTFRIEND':
                    if len(message) > 1 and db.is_account_online(message[1]):
                        ListReFriend = db.get_request_friend(message[1])
                        if len(ListReFriend) == 0:
                            response = "You have no request"
                        else:
                            response = "list of request friends are "
                            for i in ListReFriend:
                                response += i + " "
                        logging.info("Send to " + self.ip + ":" +
                                     str(self.port) + " -> " + response)
                        self.tcpClientSocket.send(response.encode())
                    else:
                        response = 'NotLoginYet'
                        self.tcpClientSocket.send(response.encode())

                elif message[0] == "SEARCH":
                    # checks if an account with the username exists
                    if db.is_account_exists(message[1]):
                        # checks if the account is online
                        # and sends the related response to peer
                        if db.is_account_online(message[1]):
                            peer_info = db.get_peer_ip_port(message[1])
                            response = "search-success " + peer_info[
                                0] + ":" + peer_info[1]
                            logging.info("Send to " + self.ip + ":" +
                                         str(self.port) + " -> " + response)
                            self.tcpClientSocket.send(response.encode())
                        else:
                            response = "search-user-not-online"
                            logging.info("Send to " + self.ip + ":" +
                                         str(self.port) + " -> " + response)
                            self.tcpClientSocket.send(response.encode())
                    # enters if username does not exist
                    else:
                        response = "search-user-not-found"
                        logging.info("Send to " + self.ip + ":" +
                                     str(self.port) + " -> " + response)
                        self.tcpClientSocket.send(response.encode())

                elif message[0] == 'CHECKFRIEND':
                    if db.is_account_exists(
                            message[1]) and db.is_account_exists(message[2]):
                        if db.is_account_online(
                                message[1]) and db.is_account_online(
                                    message[2]):
                            if db.Is_Friend(message[1], message[2]):
                                response = 'YES'
                            else:
                                response = 'NO'
                            self.tcpClientSocket.send(response.encode())
                        else:
                            response = 'NOTONL'
                            self.tcpClientSocket.send(response.encode())
                    else:
                        response = 'NOTEX'
                        self.tcpClientSocket.send(response.encode())

            except OSError as oErr:
                pass
Esempio n. 9
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def test_get_users_all():
    create_user('testp1', 'test_pass')
    update_credentials('testp1', 'test2_pass')
    assert get_password('testp1') == 'test2_pass'
Esempio n. 10
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def test_get_password_negative():
    assert get_password('noexist') is None
Esempio n. 11
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def test_get_password():
    create_user('test', 'test_pass')
    assert get_password('test') == "test_pass"
Esempio n. 12
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def console_ui():
    actions = [
        "add", "remove", "enable", "disable", "transaction", "transactions",
        "accounts", "delete", "modify", "cancel", "process", "exit"
    ]

    print(f"""
    ================================================================================
    Welcome Admin!
    
""" + "\n".join(actions) + """
    ================================================================================
    """)

    while True:
        # get action
        while True:
            action = input("Action: ").lower()
            if action in actions:
                break

        if action == "transactions":
            print(db.get_transactions())
        elif action == "exit":
            break
        elif action == "transaction":
            transaction_id = input("ID: ")
            transaction_id = int(transaction_id)
            print(db.get_transaction(transaction_id))
        elif action == "accounts":
            print(db.get_accounts())
        elif action == "add":
            name = input_existing_user()
            db.deposit(name)
        elif action == "remove":
            name = input_existing_user()
            db.withdraw(name)
        elif action == "delete":
            name = input_existing_user()
            confirm = input("Confirm action? ").lower()
            if confirm == "yes":
                db.delete_account(name)
        elif action == "enable":
            name = input_existing_user()
            if not db.get_status(name):
                db.enable_account(name)
            else:
                print("Account already enabled!")
        elif action == "disable":
            name = input_existing_user()
            if not db.get_status(name):
                db.enable_account(name)
        elif action == "modify":
            name = input_existing_user()
            password = db.get_password(name)
            new_name = input("New name (put none if no new name): ")
            while True:
                new_password = input(
                    "New password (put none if no new password): ")
                confirm_password = input(
                    "Confirm password (put none if no new password): ")
                if new_password != confirm_password:
                    print("Password does not match!")
                else:
                    break
            if new_name == "none":
                new_name = None
            if new_password == "none":
                new_password = None
            db.modify_account(name, password, new_name, new_password)
            print("Changes saved.")
            break
Esempio n. 13
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    def run(self):
        # locking the thread 
        self.lock = threading.Lock()
        print("Connection from: " + self.IPAddr + ":" + str(self.portAddr))
        print("IP Connected: " + self.IPAddr)
        
        while True:
            try:
                # message incoming from the peer
                message = self.tcpClientSocket.recv(1024).decode().split()
                # if JOIN recieved  #
                if message[0] == "JOIN":
                    # if account exists 
                    # then account-exists is send as reponse
                    if db.is_account_exist(message[1]):
                        response = "account-exist"
                        self.tcpClientSocket.send(response.encode())
                    
                    # if account doesn't exists
                    # account created and account success message is sent
                    else:
                        db.register(message[1], message[2], " ".join(message[3:])) #messagep[3] status
                        response = "account-success"
                        self.tcpClientSocket.send(response.encode())
                # if CHANGE recieved  #
                elif message[0] == "CHANGE":
                    # if account exist 
                    # status changed mssg is sent 
                    if db.is_account_exist(message[1]):
                        db.update_status(message[1]," ".join(message[2:]))
                        response = "status-changed"
                        self.tcpClientSocket.send(response.encode())
                # if GET recieved  #
                elif message[0] == "GET":
                    # if account exists
                    # current status is sent as mssg
                    if db.is_account_exist(message[1]):
                        status = db.get_status(message[1])
                        self.tcpClientSocket.send(status.encode())
                # if LOGIN recieved  #
                elif message[0] == "LOGIN":
                    # if no account exist with the given username 
                    # flag is sent to the peer
                    if not db.is_account_exist(message[1]):
                        response = "Account-not-exist"
                        self.tcpClientSocket.send(response.encode())
                    # if an account is already online with given username
                    # flag is sent
                    elif db.is_account_online(message[1]):
                        response = "Account-online"
                        self.tcpClientSocket.send(response.encode())
                    # if an account is log in successfully 
                    # extracts the password from the string
                    else:
                        # checks the password from looking into database
                        retrievedPass = db.get_password(message[1])
                        if retrievedPass == message[2]:
                            self.username = message[1]
                            self.lock.acquire()
                            try:
                                tcpThreads[self.username] = self
                            finally:
                                self.lock.release()

                            db.user_login(message[1], self.IPAddr, message[3])
                            # login-success is sent to the peer and udp thread is started to 
                            # watch the time
                            response = "Account-success"
                            self.tcpClientSocket.send(response.encode())
                            # udp server created
                            self.udpServer = UDPServer(self.username, self.tcpClientSocket)
                            # udp server started 
                            self.udpServer.start()
                            # start the timer of udp
                            self.udpServer.timer.start()
                        # if wrong password then flag is sent
                        else:
                            response = "Wrong-password" 
                            self.tcpClientSocket.send(response.encode())
                #   if LOGOUT recieved  #
                elif message[0] == "LOGOUT":
                    # if user logouts removes usre from the online list of peer
                    # thread removed from the list and socket is closed
                    # timer udp thread cancels 
                    if len(message) > 1 and message[1] is not None and db.is_account_online(message[1]):
                        db.user_logout(message[1])
                        # lock acquired 
                        self.lock.acquire()
                        try:
                            if message[1] in tcpThreads:
                                # removes thread form the list
                                del tcpThreads[message[1]]
                        finally:
                            # lock released
                            self.lock.release()
                        self.tcpClientSocket.close()
                        self.udpServer.timer.cancel()
                        break
                    else:
                        self.tcpClientSocket.close()
                        break
                #   if SEARCH recieved  #
                elif message[0] == "SEARCH":
                    # checks for accounts existsence
                    if db.is_account_exist(message[1]):
                        # if account is online search success is send
                        if db.is_account_online(message[1]):
                            peer_info = db.get_peer_ip_port(message[1])
                            response = "Success " + peer_info[0] + ":" + peer_info[1]
                            self.tcpClientSocket.send(response.encode())
                        # else user not online is send
                        else:
                            response = "User-not-online"
                            self.tcpClientSocket.send(response.encode())
                    # if no user with given name is found serach user not found is sent
                    else:
                        response = "User-not-found"
                        self.tcpClientSocket.send(response.encode())
            except OSError as oErr:
                pass 
Esempio n. 14
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def user_exists(username):
    return db.get_password(username) is not None
Esempio n. 15
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def verify(username, password):
    return encrypt(password) == db.get_password(username)
Esempio n. 16
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    def run(self):
        # locks for thread which will be used for thread synchronization
        self.lock = threading.Lock()
        print("Connection from: " + self.ip + ":" + str(port))
        print("IP Connected: " + self.ip)

        while True:
            try:
                # waits for incoming messages from peers
                message = self.tcpClientSocket.recv(1024).decode().split()
                logging.info("Received from " + self.ip + ":" +
                             str(self.port) + " -> " + " ".join(message))
                #   JOIN    #
                if message[0] == "JOIN":
                    # join-exist is sent to peer,
                    # if an account with this username already exists
                    if db.is_account_exist(message[1]):
                        response = "join-exist"
                        print("From-> " + self.ip + ":" + str(self.port) +
                              " " + response)
                        logging.info("Send to " + self.ip + ":" +
                                     str(self.port) + " -> " + response)
                        self.tcpClientSocket.send(response.encode())
                    # join-success is sent to peer,
                    # if an account with this username is not exist, and the account is created
                    else:
                        db.register(message[1], message[2])
                        response = "join-success"
                        logging.info("Send to " + self.ip + ":" +
                                     str(self.port) + " -> " + response)
                        self.tcpClientSocket.send(response.encode())
                #   LOGIN    #
                elif message[0] == "LOGIN":
                    # login-account-not-exist is sent to peer,
                    # if an account with the username does not exist
                    if not db.is_account_exist(message[1]):
                        response = "login-account-not-exist"
                        logging.info("Send to " + self.ip + ":" +
                                     str(self.port) + " -> " + response)
                        self.tcpClientSocket.send(response.encode())
                    # login-online is sent to peer,
                    # if an account with the username already online
                    elif db.is_account_online(message[1]):
                        response = "login-online"
                        logging.info("Send to " + self.ip + ":" +
                                     str(self.port) + " -> " + response)
                        self.tcpClientSocket.send(response.encode())
                    # login-success is sent to peer,
                    # if an account with the username exists and not online
                    else:
                        # retrieves the account's password, and checks if the one entered by the user is correct
                        retrievedPass = db.get_password(message[1])
                        # if password is correct, then peer's thread is added to threads list
                        # peer is added to db with its username, port number, and ip address
                        if retrievedPass == message[2]:
                            self.username = message[1]
                            self.lock.acquire()
                            try:
                                tcpThreads[self.username] = self
                            finally:
                                self.lock.release()

                            db.user_login(message[1], self.ip, message[3])
                            # login-success is sent to peer,
                            # and a udp server thread is created for this peer, and thread is started
                            # timer thread of the udp server is started
                            response = "login-success"
                            logging.info("Send to " + self.ip + ":" +
                                         str(self.port) + " -> " + response)
                            self.tcpClientSocket.send(response.encode())
                            self.udpServer = UDPServer(self.username,
                                                       self.tcpClientSocket)
                            self.udpServer.start()
                            self.udpServer.timer.start()
                        # if password not matches and then login-wrong-password response is sent
                        else:
                            response = "login-wrong-password"
                            logging.info("Send to " + self.ip + ":" +
                                         str(self.port) + " -> " + response)
                            self.tcpClientSocket.send(response.encode())
                #   LOGOUT  #
                elif message[0] == "LOGOUT":
                    # if user is online,
                    # removes the user from onlinePeers list
                    # and removes the thread for this user from tcpThreads
                    # socket is closed and timer thread of the udp for this
                    # user is cancelled
                    if len(message) > 1 and message[
                            1] is not None and db.is_account_online(
                                message[1]):
                        db.user_logout(message[1])
                        self.lock.acquire()
                        try:
                            if message[1] in tcpThreads:
                                del tcpThreads[message[1]]
                        finally:
                            self.lock.release()
                        print(self.ip + ":" + str(self.port) +
                              " is logged out")
                        self.tcpClientSocket.close()
                        self.udpServer.timer.cancel()
                        break
                    else:
                        self.tcpClientSocket.close()
                        break
                #   SEARCH  #
                elif message[0] == "SEARCH":
                    # checks if an account with the username exists
                    if db.is_account_exist(message[1]):
                        # checks if the account is online
                        # and sends the related response to peer
                        if db.is_account_online(message[1]):
                            peer_info = db.get_peer_ip_port(message[1])
                            response = "search-success " + peer_info[
                                0] + ":" + peer_info[1]
                            logging.info("Send to " + self.ip + ":" +
                                         str(self.port) + " -> " + response)
                            self.tcpClientSocket.send(response.encode())
                        else:
                            response = "search-user-not-online"
                            logging.info("Send to " + self.ip + ":" +
                                         str(self.port) + " -> " + response)
                            self.tcpClientSocket.send(response.encode())
                    # enters if username does not exist
                    else:
                        response = "search-user-not-found"
                        logging.info("Send to " + self.ip + ":" +
                                     str(self.port) + " -> " + response)
                        self.tcpClientSocket.send(response.encode())
            except OSError as oErr:
                logging.error("OSError: {0}".format(oErr))