enrol.cpp

局域网聊天室

#include <QHostAddress>
#include <QMessageBox>
#include <QTextCodec>
#include "enrol.h"

Enrol::Enrol(QWidget *parent):QDialog(parent)
{
	setupUi(this);
	tcpSocket = new QTcpSocket(this);
	connect(pushButton,SIGNAL(clicked()),this,SLOT(sendMsg()));
	QTextCodec *chineseCodec=QTextCodec::codecForName("UTF_8");
	QTextCodec::setCodecForCStrings(chineseCodec);
	connect(pushButton_2,SIGNAL(clicked()),this,SLOT(close()));
	connect(tcpSocket,SIGNAL(readyRead()),this,SLOT(recvMsg()));
	connect(tcpSocket,SIGNAL(error(QAbstractSocket::SocketError)),this,SLOT(error()));
	tcpSocket->connectToHost("192.168.0.7",8000);
}
int Enrol::check()
{
	QString str = lineEdit->text();
	int n = str.size();
	int i = 0;
	if((n < 5) || (n > 16))
		return 0;
	while(str.data()[i] != '\0'){
		if(((str.data()[i] >= '0')&&(str.data()[i] <= '9')) || 
		   ((str.data()[i] >= 'A')&&(str.data()[i] <= 'Z')) ||
		   ((str.data()[i] >= 'a')&&(str.data()[i] <= 'z')))
			i++;

		else
			return 0;
	}
	QString str1 = lineEdit_2->text();
	int m = str1.size();
	int j = 0;
	if((m < 5) || (m > 16))
		return 0;
	while(str1.data()[j] != '\0'){
		if(((str1.data()[j] >= '0')&&(str1.data()[j] <= '9')) || 
		   ((str1.data()[j] >= 'A')&&(str1.data()[j] <= 'Z')) ||
		   ((str1.data()[j] >= 'a')&&(str1.data()[j] <= 'z')))
			j++;
		else
			return 0;
	}
	QString str2 = lineEdit_3->text();
	int r = str2.size();
	int k = 0;
	if((r < 5) || (r > 16))
		return 0;
	while(str1.data()[k] != '\0'){
		if(((str2.data()[k] >= '0')&&(str2.data()[k] <= '9')) || 
		   ((str2.data()[k] >= 'A')&&(str2.data()[k] <= 'Z')) ||
		   ((str2.data()[k] >= 'a')&&(str2.data()[k] <= 'z')))
			k++;
		else
			return 0;
	}
	if(str2==str1)
		return 1;
	else
		return 0;
}
void Enrol::sendMsg()
{
	int n = check();
	if(n){
		QTextStream out(tcpSocket);
		QString enrol_message;
		enrol_message += "Enrol";
		enrol_message += " ";
		enrol_message += lineEdit->text();
		enrol_message += " ";
		enrol_message += lineEdit_2->text();
		enrol_message += "\n";
		enrol_message += '\0';
		out<<enrol_message<<endl;
		lineEdit->clear();
		lineEdit_2->clear();
		lineEdit_3->clear();
	}
	else{
		QTextCodec *chineseCodec=QTextCodec::codecForName("UTF_8");
		QTextCodec::setCodecForCStrings(chineseCodec);
		QMessageBox::critical(this,"提示！","用户帐号或用户密码不合法！");
	}
}

void Enrol::recvMsg()
{
	if(!tcpSocket->canReadLine())
		return;
	QString responseLine;
	do {
		responseLine += tcpSocket->readLine();
	} while(tcpSocket->canReadLine());
//	QMessageBox::critical(this,"enrol success",responseLine);
	msgBuffer += responseLine;
	if(msgBuffer=="OK@\n"){
		QTextCodec *chineseCodec=QTextCodec::codecForName("UTF_8");
		QTextCodec::setCodecForCStrings(chineseCodec);
		QMessageBox::information(this,"提示！","注册成功！");
		lineEdit->clear();
		lineEdit_2->clear();
		lineEdit_3->clear();
		tcpSocket->close();
		close();
	}
	if(msgBuffer=="FAIL@\n"){
		QMessageBox::critical(this,"提示！","注册用户有重名！");
		msgBuffer.clear();
		lineEdit->clear();
		lineEdit_2->clear();
		lineEdit_3->clear();
	}			
}
void Enrol::error()
{
	QMessageBox::critical(this,"提示","网络连接失败");
	tcpSocket->close();
}