Netcontroller class

NEU-Dectect.pro

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+#-------------------------------------------------
+#
+# Project created by QtCreator 2018-03-16T19:31:11
+#
+#-------------------------------------------------
+
+QT       += core gui
+QT       += network
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+TARGET = NEU
+TEMPLATE = app
+
+# The following define makes your compiler emit warnings if you use
+# any feature of Qt which has been marked as deprecated (the exact warnings
+# depend on your compiler). Please consult the documentation of the
+# deprecated API in order to know how to port your code away from it.
+DEFINES += QT_DEPRECATED_WARNINGS
+
+# You can also make your code fail to compile if you use deprecated APIs.
+# In order to do so, uncomment the following line.
+# You can also select to disable deprecated APIs only up to a certain version of Qt.
+#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+
+
+SOURCES += \
+        main.cpp \
+        mainwindow.cpp \
+    netcontroller.cpp
+
+HEADERS += \
+        mainwindow.h \
+    netcontroller.h

main.cpp

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+#include "mainwindow.h"
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    MainWindow w;
+    w.show();
+    NetController controller("", "");
+    controller.sendLogoutRequest();
+
+    return a.exec();
+}

mainwindow.cpp

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+#include "mainwindow.h"
+
+MainWindow::MainWindow(QWidget *parent)
+    : QMainWindow(parent)
+{
+}
+
+MainWindow::~MainWindow()
+{
+
+}

mainwindow.h

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+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+#include <netcontroller.h>
+
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    MainWindow(QWidget *parent = 0);
+    ~MainWindow();
+};
+
+#endif // MAINWINDOW_H

netcontroller.cpp

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+#include "netcontroller.h"
+
+NetController::NetController(QByteArray id, QByteArray passwd, QObject *parent) : QObject(parent),
+            username(id), password(passwd), flag(Disconnected), manager(this), checkTimer(new QTimer(this))
+{
+    checkParam.append("action=get_online_info");
+
+    loginParam.append("action=login&");
+    loginParam.append("nas_ip=&");
+    loginParam.append("password=");
+    loginParam.append(password);
+    loginParam.append("&save_me=0&");
+    loginParam.append("url=&");
+    loginParam.append("user_ip=&");
+    loginParam.append("user_mac=&");
+    loginParam.append("username=");
+    loginParam.append(username);
+
+    logoutParam.append("action=logout&");
+    logoutParam.append("ajax=1&");
+    logoutParam.append("password=");
+    logoutParam.append(password);
+    logoutParam.append("&username=");
+    logoutParam.append(username);
+
+    request.setHeader(QNetworkRequest::ContentTypeHeader, "application/x-www-form-urlencoded");
+    connect(&manager, QNetworkAccessManager::finished, this, handleResponse);
+
+    checkTimer->setInterval(1000);
+    connect(checkTimer, QTimer::timeout, this, checkStatus);
+    checkTimer->start();
+}
+
+void NetController::checkStatus()
+{
+    sendCheckRequest();
+    if(NEUStatus==Offline&&flag!=Offline)
+    {
+        flag = Offline;
+        emit getOffline();
+        qDebug()<<"turn Offline";
+    }
+    else if(NEUStatus == Online && flag != Online)
+    {
+        flag = Online;
+        emit getOnline();
+        qDebug()<<"turn Online";
+    }
+    else if(NEUStatus == Disconnected && flag != Disconnected)
+    {
+        flag = Disconnected;
+        emit getDisconnected();
+        qDebug()<<"turn Disconnected";
+    }
+}
+
+void NetController::sendCheckRequest()
+{
+    request.setUrl(QUrl(checkUrl));
+    manager.post(request, checkParam);
+}
+
+void NetController::sendLoginRequest()
+{
+    request.setUrl(QUrl(loginUrl));
+    manager.post(request, loginParam);
+}
+
+void NetController::sendLogoutRequest()
+{
+    request.setUrl(QUrl(loginUrl));
+    manager.post(request, logoutParam);
+}
+
+void NetController::handleResponse(QNetworkReply *reply)
+{
+    //    qDebug()<<reply->url();
+    QString url = reply->url().toString();
+    reply->deleteLater();
+    if(url==checkUrl)
+    {
+        if(reply->error()==QNetworkReply::NoError)
+        {
+            QString status = reply->readAll();
+            if(status==offlineString)
+            {
+                NEUStatus = Offline;
+            }
+            else
+            {
+                NEUStatus = Online;
+            }
+        }
+        else
+        {
+            NEUStatus = Disconnected;
+        }
+    }
+    else if(url==loginUrl)
+    {
+
+    }
+}

netcontroller.h

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+#ifndef NETCONTROLLER_H
+#define NETCONTROLLER_H
+
+#include <QObject>
+#include <QNetworkAccessManager>
+#include <QNetworkRequest>
+#include <QNetworkReply>
+#include <QTimer>
+
+class NetController : public QObject
+{
+    Q_OBJECT
+public:
+    explicit NetController(QByteArray username, QByteArray password, QObject *parent = nullptr);
+    void checkStatus();
+    void sendCheckRequest();
+    void sendLoginRequest();
+    void sendLogoutRequest();
+
+    enum Status {Offline, Online, Disconnected};
+
+private:
+    QString checkUrl = "http://ipgw.neu.edu.cn/include/auth_action.php";
+    QString loginUrl = "http://ipgw.neu.edu.cn/srun_portal_pc.php?ac_id=1&";
+    QString offlineString = "not_online";
+    QByteArray checkParam, loginParam, logoutParam,  username, password;
+    Status NEUStatus, flag;
+
+    QNetworkAccessManager manager;
+    QNetworkRequest request;
+    QTimer *checkTimer;
+
+signals:
+    void getOnline();
+    void getOffline();
+    void getDisconnected();
+
+public slots:
+    void handleResponse(QNetworkReply *reply);
+};
+
+#endif // NETCONTROLLER_H