#include "mainwindow.h"
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#include "ui_mainwindow.h"
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MainWindow::MainWindow(QWidget *parent) :
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QMainWindow(parent),
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ui(new Ui::MainWindow)
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{
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ui->setupUi(this);
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//登录
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ui->usernameLineEdit->setPlaceholderText("请输入工号");
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ui->passwordLineEdit->setPlaceholderText("请输入密码");
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ui->passwordLineEdit->setEchoMode(QLineEdit::Password);
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//注册
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ui->usernameLineEdit_2->setPlaceholderText("请输入用户名");
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ui->passwordLineEdit_2->setPlaceholderText("请输入新密码");
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ui->repasswordLineEdit->setPlaceholderText("再次确认密码");
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ui->passwordLineEdit_2->setEchoMode(QLineEdit::Password);
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ui->repasswordLineEdit->setEchoMode(QLineEdit::Password);
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ui->emailLineEdit->setPlaceholderText("请输入电子邮箱");
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ui->telephoneLineEdit->setPlaceholderText("请输入手机号");
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//设置输入长度限制为11
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QIntValidator *inValidator = new QIntValidator(1,11,this);
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ui->telephoneLineEdit->setValidator(inValidator);
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//只允许输入数字
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QRegExp rx("^[0-9]*$");
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QRegExpValidator *regExpValidator = new QRegExpValidator(rx,this);
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ui->telephoneLineEdit->setValidator(regExpValidator);
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//重置密码
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ui->email->setPlaceholderText("请输入电子邮箱");
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ui->CAPTCHI->setPlaceholderText("请输入验证码");
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ui->password_2->setPlaceholderText("请输入密码");
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ui->password_3->setPlaceholderText("请确认密码");
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ui->password_2->setEchoMode(QLineEdit::Password);
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ui->password_3->setEchoMode(QLineEdit::Password);
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}
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MainWindow::~MainWindow()
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{
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delete ui;
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}
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void MainWindow::on_loginPushButton_clicked()//登录界面登录按钮
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{
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QString username = ui->usernameLineEdit->text();
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QString password = ui->passwordLineEdit->text();
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if(username==0||password==0){
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QMessageBox::warning(this, "输入错误", "用户名或密码不能为空！");//显示错误消息
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}else if(validateInput(username, password)){/* 输入校验逻辑 */
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QByteArray hashedPassword = hashPassword(password);
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// 从数据库或文件获取存储的用户名和加密密码
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if (verifyUserData(username, hashedPassword)) {/* 输入校验逻辑 */
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QMessageBox::information(this, "登录成功", "欢迎回来，" + username + "！");
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// 根据用户权限加载不同界面
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} else {
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QMessageBox::warning(this, "登录失败", "用户名或密码错误！");//显示错误消息
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}
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}else{
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QMessageBox::warning(this, "输入错误", "用户名或密码不合法！");//显示错误消息
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}
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}
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void MainWindow::on_registerPushButton_2_clicked()//注册界面注册按钮
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{
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QString username_2 = ui->usernameLineEdit_2->text();
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QString password_2 = ui->passwordLineEdit_2->text();
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if (validateInput(username_2, password_2)) {/*输入校验逻辑*/
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QByteArray hashedPassword = hashPassword(password_2);
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//存储用户名和加密密码到数据库或文件
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saveUserData(username_2, hashedPassword);
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QMessageBox::information(this, "注册成功", "用户注册成功！");
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} else {
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QMessageBox::warning(this, "输入错误", "用户名或密码不合法！");//显示错误信息
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}
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}
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void MainWindow::on_registerPushButton_clicked()//登录界面注册按钮
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{
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ui->stackedWidget->setCurrentIndex(1);
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}
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void MainWindow::on_forgotPushButton_clicked()//登录界面忘记密码按钮
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{
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ui->stackedWidget->setCurrentIndex(2);
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}
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void MainWindow::on_toolButton_clicked()//注册界面返回登录按钮
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{
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ui->stackedWidget->setCurrentIndex(0);
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}
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void MainWindow::on_toolButton_2_clicked()//重设密码界面返回登录按钮
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{
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ui->stackedWidget->setCurrentIndex(0);
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}
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void MainWindow::on_repasswordPushButton_clicked()//重设密码按钮
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{
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}
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QByteArray MainWindow::hashPassword(const QString &password)
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{
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return QCryptographicHash::hash(password.toUtf8(), QCryptographicHash::Sha256);
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}
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bool MainWindow::validateInput(const QString &username, const QString &password)
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{
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// 校验用户名和密码的长度和合法性
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QRegExp usernameRegex("^[a-zA-Z0-9_]{3,15}$"); // 用户名范围3-15个字符
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QRegExp passwordRegex("^[a-zA-Z0-9@#$%^&+=]{6,20}$"); // 密码范围6-20个字符
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return usernameRegex.exactMatch(username) && passwordRegex.exactMatch(password);
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}
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void MainWindow::saveUserData(const QString &username, const QByteArray &hashedPassword)
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{
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QFile file("userdata.txt");
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if (file.open(QIODevice::Append | QIODevice::Text)) {
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QTextStream out(&file);
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out << username << "\n" << hashedPassword.toHex() << "\n"; // 存储用户名和哈希密码
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file.close();
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}
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}
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bool MainWindow::verifyUserData(const QString &username, const QByteArray &hashedPassword)
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{
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QFile file("userdata.txt");
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if (file.open(QIODevice::ReadOnly | QIODevice::Text)) {
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QTextStream in(&file);
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while (!in.atEnd()) {
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QString storedUsername = in.readLine();
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QString storedPassword = in.readLine();
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if (storedUsername == username && storedPassword == hashedPassword.toHex()) {
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file.close();
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return true; // 验证成功
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}
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}
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file.close();
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}
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return false; // 验证失败
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}
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