新增秘钥生成器+程序守护进程

README.md

@@ -40,8 +40,10 @@
 | 33 | echartgauge | echart仪表盘含交互支持webkit及webengine |
 | 34 | ffmpegdemo | 视频流播放ffmpeg内核 |
 | 35 | vlcdemo | 视频流播放vlc内核 |
-| 36 | designer | QtDesigner4源码 |
-| 37 | netserver | 网络中转服务器 |
+| 36 | key | 秘钥生成器 |
+| 37 | live | 程序守护进程 |
+| 38 | designer | QtDesigner4源码 |
+| 39 | netserver | 网络中转服务器 |
 
 ### 二、学习群
 1. **Qt交流大会群 853086607(雨田哥)**
@@ -86,5 +88,7 @@
 ![avatar](https://github.com/feiyangqingyun/QWidgetDemo/raw/master/0snap/imageswitch.gif)
 ![avatar](https://github.com/feiyangqingyun/QWidgetDemo/raw/master/0snap/ffmpegdemo.png)
 ![avatar](https://github.com/feiyangqingyun/QWidgetDemo/raw/master/0snap/vlcdemo.png)
+![avatar](https://github.com/feiyangqingyun/QWidgetDemo/raw/master/0snap/key.png)
+![avatar](https://github.com/feiyangqingyun/QWidgetDemo/raw/master/0snap/live.png)
 ![avatar](https://github.com/feiyangqingyun/QWidgetDemo/raw/master/0snap/netserver.jpg)
 ![avatar](https://github.com/feiyangqingyun/QWidgetDemo/raw/master/0snap/designer.png)

key/key.pro

@@ -0,0 +1,4 @@
+TEMPLATE = subdirs
+CONFIG  += ordered
+SUBDIRS += keytool
+SUBDIRS += keydemo

key/keydemo/appkey.cpp

@@ -0,0 +1,122 @@
+#include "appkey.h"
+#include "qmutex.h"
+#include "qfile.h"
+#include "qtimer.h"
+#include "qdatetime.h"
+#include "qapplication.h"
+#include "qmessagebox.h"
+
+AppKey *AppKey::self = NULL;
+AppKey *AppKey::Instance()
+{
+    if (!self) {
+        QMutex mutex;
+        QMutexLocker locker(&mutex);
+        if (!self) {
+            self = new AppKey;
+        }
+    }
+
+    return self;
+}
+
+AppKey::AppKey(QObject *parent) : QObject(parent)
+{
+    keyData = "";
+    keyUseDate = false;
+    keyDate = "2017-01-01";
+    keyUseRun = false;
+    keyRun = 1;
+    keyUseCount = false;
+    keyCount = 10;
+
+    timer = new QTimer(this);
+    timer->setInterval(1000);
+    connect(timer, SIGNAL(timeout()), this, SLOT(checkTime()));
+    startTime = QDateTime::currentDateTime();
+}
+
+void AppKey::start()
+{
+    //判断密钥文件是否存在,不存在则从资源文件复制出来,同时需要设置文件写权限
+    QString keyName = qApp->applicationDirPath() + "/key.db";
+    QFile keyFile(keyName);
+    if (!keyFile.exists() || keyFile.size() == 0) {
+        QMessageBox::critical(0, "错误", "密钥文件丢失,请联系供应商!");
+        exit(0);
+    }
+
+    //读取密钥文件
+    keyFile.open(QFile::ReadOnly);
+    keyData = keyFile.readLine();
+    keyFile.close();
+
+    //将从注册码文件中的密文解密,与当前时间比较是否到期
+    keyData = getXorEncryptDecrypt(keyData, 110);
+    QStringList data = keyData.split("|");
+
+    if (data.count() != 6) {
+        QMessageBox::critical(0, "错误", "注册码文件已损坏,程序将自动关闭!");
+        exit(0);
+    }
+
+    keyUseDate = (data.at(0) == "1");
+    keyDate = data.at(1);
+    keyUseRun = (data.at(2) == "1");
+    keyRun = data.at(3).toInt();
+    keyUseCount = (data.at(4) == "1");
+    keyCount = data.at(5).toInt();
+
+    //如果启用了时间限制
+    if (keyUseDate) {
+        QString nowDate = QDate::currentDate().toString("yyyy-MM-dd");
+        if (nowDate > keyDate) {
+            QMessageBox::critical(0, "错误", "软件已到期,请联系供应商更新注册码!");
+            exit(0);
+        }
+    }
+
+    //如果启用了运行时间显示
+    if (keyUseRun) {
+        timer->start();
+    }
+}
+
+void AppKey::stop()
+{
+    timer->stop();
+}
+
+void AppKey::checkTime()
+{
+    //找出当前时间与首次启动时间比较
+    QDateTime now = QDateTime::currentDateTime();
+    if (startTime.secsTo(now) >= (keyRun * 60)) {
+        QMessageBox::critical(0, "错误", "试运行时间已到,请联系供应商更新注册码!");
+        exit(0);
+    }
+}
+
+QString AppKey::getXorEncryptDecrypt(const QString &data, char key)
+{
+    //采用异或加密,也可以自行更改算法
+    QByteArray buffer = data.toLatin1();
+    int size = buffer.size();
+    for (int i = 0; i < size; i++) {
+        buffer[i] = buffer.at(i) ^ key;
+    }
+
+    return QLatin1String(buffer);
+}
+
+bool AppKey::checkCount(int count)
+{
+    if (keyUseCount) {
+        if (count >= keyCount) {
+            QMessageBox::critical(0, "错误", "设备数量超过限制,请联系供应商更新注册码!");
+            return false;
+        }
+    }
+
+    return true;
+}

key/keydemo/appkey.h

@@ -0,0 +1,40 @@
+#ifndef APPKEY_H
+#define APPKEY_H
+
+#include <QObject>
+#include <QDateTime>
+
+class QTimer;
+
+class AppKey : public QObject
+{
+    Q_OBJECT
+public:
+    static AppKey *Instance();
+    explicit AppKey(QObject *parent = 0);
+
+private:
+    static AppKey *self;
+
+    QString keyData;            //注册码密文
+    bool keyUseDate;            //是否启用运行日期时间限制
+    QString keyDate;            //到期时间字符串
+    bool keyUseRun;             //是否启用可运行时间限制
+    int keyRun;                 //可运行时间
+    bool keyUseCount;           //是否启用设备数量限制
+    int keyCount;               //设备限制数量
+
+    QTimer *timer;              //定时器判断是否运行超时
+    QDateTime startTime;        //程序启动时间
+
+private slots:
+    void checkTime();
+    QString getXorEncryptDecrypt(const QString &data, char key);
+
+public slots:
+    void start();
+    void stop();
+    bool checkCount(int count);
+};
+
+#endif // APPKEY_H

key/keydemo/frmmain.cpp

@@ -0,0 +1,22 @@
+#include "frmmain.h"
+#include "ui_frmmain.h"
+#include "appkey.h"
+
+frmMain::frmMain(QWidget *parent) : QWidget(parent), ui(new Ui::frmMain)
+{
+    ui->setupUi(this);
+}
+
+frmMain::~frmMain()
+{
+    delete ui;
+}
+
+void frmMain::on_btnAdd_clicked()
+{
+    QString name = ui->lineEdit->text().trimmed();
+    ui->listWidget->addItem(name);
+
+    //计算当前设备数量多少
+    AppKey::Instance()->checkCount(ui->listWidget->count());
+}

key/keydemo/frmmain.h

@@ -0,0 +1,25 @@
+#ifndef FRMMAIN_H
+#define FRMMAIN_H
+
+#include <QWidget>
+
+namespace Ui {
+class frmMain;
+}
+
+class frmMain : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit frmMain(QWidget *parent = 0);
+    ~frmMain();
+
+private:
+    Ui::frmMain *ui;
+
+private slots:
+    void on_btnAdd_clicked();
+};
+
+#endif // FRMMAIN_H

key/keydemo/frmmain.ui

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>frmMain</class>
+ <widget class="QWidget" name="frmMain">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>frmMain</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="0" column="0" colspan="2">
+    <widget class="QListWidget" name="listWidget"/>
+   </item>
+   <item row="1" column="0">
+    <widget class="QLineEdit" name="lineEdit">
+     <property name="text">
+      <string>测试设备</string>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="1">
+    <widget class="QPushButton" name="btnAdd">
+     <property name="text">
+      <string>添加</string>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <layoutdefault spacing="6" margin="11"/>
+ <resources/>
+ <connections/>
+</ui>

key/keydemo/keydemo.pro

@@ -0,0 +1,24 @@
+#-------------------------------------------------
+#
+# Project created by QtCreator 2019-02-17T20:23:58
+#
+#-------------------------------------------------
+
+QT       += core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+TARGET      = keydemo
+TEMPLATE    = app
+MOC_DIR     = temp/moc
+RCC_DIR     = temp/rcc
+UI_DIR      = temp/ui
+OBJECTS_DIR = temp/obj
+DESTDIR     = $$PWD/../bin
+CONFIG      += warn_off
+
+SOURCES     += main.cpp
+SOURCES     += frmmain.cpp appkey.cpp
+HEADERS     += frmmain.h appkey.h
+FORMS       += frmmain.ui
+

key/keydemo/main.cpp

@@ -0,0 +1,34 @@
+#pragma execution_character_set("utf-8")
+#include "frmmain.h"
+#include "appkey.h"
+#include <QApplication>
+#include <QTextCodec>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    a.setFont(QFont("Microsoft Yahei", 9));
+
+#if (QT_VERSION <= QT_VERSION_CHECK(5,0,0))
+#if _MSC_VER
+    QTextCodec *codec = QTextCodec::codecForName("gbk");
+#else
+    QTextCodec *codec = QTextCodec::codecForName("utf-8");
+#endif
+    QTextCodec::setCodecForLocale(codec);
+    QTextCodec::setCodecForCStrings(codec);
+    QTextCodec::setCodecForTr(codec);
+#else
+    QTextCodec *codec = QTextCodec::codecForName("utf-8");
+    QTextCodec::setCodecForLocale(codec);
+#endif
+
+    //启动密钥服务类
+    AppKey::Instance()->start();
+
+    frmMain w;
+    w.setWindowTitle("密钥使用示例");
+    w.show();
+
+    return a.exec();
+}