MultiUserChat::~MultiUserChat()
{
if (!FUsers.isEmpty())
closeChat(IPresence::Offline, QString::null);
if (FStanzaProcessor)
{
FStanzaProcessor->removeStanzaHandle(FSHIPresence);
FStanzaProcessor->removeStanzaHandle(FSHIMessage);
}
if (FMessageProcessor)
{
FMessageProcessor->removeMessageEditor(MEO_MULTIUSERCHAT,this);
}
emit chatDestroyed();
}
//群聊窗口
void Widget::on_btnAll_clicked()
{
if(list.contains("NULL"))//窗口存在
{
list["NULL"]->raise();
list["NULL"]->activateWindow();
list["NULL"]->show();
}
else
{
ChatWidgit *chatView = new ChatWidgit();
list.insert("NULL", chatView);
connect(chatView, SIGNAL(closeChat(QString)), this, SLOT(closeFromChat(QString)));
connect(this, SIGNAL(sendMessagesZ(QString, QString, QString)), chatView, SLOT(setMessage(QString, QString, QString)));
connect(chatView, SIGNAL(sendMessagesFromChat(QString, QString)), this, SLOT(sendMessagesToMain(QString, QString)));
chatView->setSecAddr("NULL", Name);
chatView->show();
}
}
//聊天窗口关闭时发送信号，让主窗口删除Qmap表项中相对应的数据
void ChatWidgit::closeEvent(QCloseEvent *)
{
emit closeChat(secretAddress);
}
Client::Client(QWidget *parent) : QDialog(parent)
{
hostLabel = new QLabel(tr("&Server name:"));
portLabel = new QLabel(tr("S&erver port:"));
nameLabel = new QLabel(tr("&Client name:"));
// Find out which IP to connect to
QString ipAddress;
QList<QHostAddress> ipAddressesList = QNetworkInterface::allAddresses();
// Use the first non-localhost IPv4 address
for (int i = 0; i < ipAddressesList.size(); ++i) {
if (ipAddressesList.at(i) != QHostAddress::LocalHost &&
ipAddressesList.at(i).toIPv4Address()) {
ipAddress = ipAddressesList.at(i).toString();
break;
}
}
// If we did not find one, use IPv4 localhost
if (ipAddress.isEmpty())
ipAddress = QHostAddress(QHostAddress::LocalHost).toString();
hostLineEdit = new QLineEdit(ipAddress);
portLineEdit = new QLineEdit;
clientNameLineEdit = new QLineEdit;
portLineEdit->setValidator(new QIntValidator(1, 65535, this));
hostLabel->setBuddy(hostLineEdit);
portLabel->setBuddy(portLineEdit);
nameLabel->setBuddy(clientNameLineEdit);
connectButton = new QPushButton(tr("Connect"));
connectButton->setDefault(true);
connectButton->setEnabled(false);
// Make the quit button exit chat sessions
quitButton = new QPushButton(tr("Quit"));
buttonBox = new QDialogButtonBox;
buttonBox->addButton(connectButton, QDialogButtonBox::ActionRole);
buttonBox->addButton(quitButton, QDialogButtonBox::RejectRole);
secureSocket = new QSslSocket(this);
// Special slot to handle errors with the certificates
// in particular the fact that they are self-signed
connect(secureSocket, SIGNAL(sslErrors(QList<QSslError>)), this,
SLOT(handleSSLError(QList<QSslError>)));
// Connect signals to slots for the chat window
connect(hostLineEdit, SIGNAL(textChanged(QString)),
this, SLOT(enableConnectButton()));
connect(portLineEdit, SIGNAL(textChanged(QString)),
this, SLOT(enableConnectButton()));
connect(clientNameLineEdit, SIGNAL(textChanged(QString)),
this, SLOT(enableConnectButton()));
connect(connectButton, SIGNAL(clicked()),
this, SLOT(connectToChatServer()));
connect(quitButton, SIGNAL(clicked()), this, SLOT(close()));
connect(secureSocket, SIGNAL(readyRead()), this, SLOT(messageComing()));
connect(secureSocket, SIGNAL(error(QAbstractSocket::SocketError)),
this, SLOT(displayError(QAbstractSocket::SocketError)));
QGridLayout *mainLayout = new QGridLayout;
mainLayout->addWidget(hostLabel, 0, 0);
mainLayout->addWidget(hostLineEdit, 0, 1);
mainLayout->addWidget(portLabel, 1, 0);
mainLayout->addWidget(portLineEdit, 1, 1);
mainLayout->addWidget(nameLabel, 2, 0);
mainLayout->addWidget(clientNameLineEdit, 2, 1);
mainLayout->addWidget(buttonBox, 3, 0, 1, 2);
setLayout(mainLayout);
QVBoxLayout* vlay = new QVBoxLayout();
vlay->addWidget(&clientChatLog);
vlay->addWidget(&clientMessage);
closeChatWindow.setText("Quit");
vlay->addWidget(&closeChatWindow);
chatWindow.setLayout(vlay);
connect(&clientMessage, SIGNAL(returnPressed()), this, SLOT(sendMessage()));
connect(&userList, SIGNAL(itemDoubleClicked(QListWidgetItem*)), this, SLOT(clientSelected(QListWidgetItem*)));
setWindowTitle(tr("Secure Chatp2p Client"));
portLineEdit->setFocus();
connect(&closeChatWindow, SIGNAL(clicked()), this, SLOT(closeChat()));
}
//接收UDP信息信号的处理函数//接收数据，并根据type分类 槽函数
void Widget::processPendingDatagrams()//接收数据处理过程
{
while(udpSocket->hasPendingDatagrams())//是否有数据报等待阅读//hasPendingDatagrams返回true时表示至少有一个数据报在等待被读取
{
QByteArray datagram;//缓存字节数组
//pendingDatagramSize为返回第一个在等待读取报文的size，resize函数是把datagram的size归一化到参数size的大小一样
datagram.resize(udpSocket->pendingDatagramSize());//获取缓存大小
//将读取到的不大于datagram.size()大小数据输入到datagram.data()中，datagram.data()返回的是一个字节数组中存储数据位置的指针
udpSocket->readDatagram(datagram.data(), datagram.size());//读取数据
QDataStream in(&datagram, QIODevice::ReadOnly);//Qt的I/O设备接口类 从&datagram中读取串行化的数据 只读 序列化的二进制数据
int messageType;//此处的int为qint32，在Qt中，qint8为char，qint16为uint
in >> messageType;//读取1个32位长度的整型数据到messageTyep中//提取出messageType
QString localHostName, ipAddress, message, secretAddress;//消息发送方昵称名，IP地址，消息内容和消息接受方IP地址
QString time = QDateTime::currentDateTime().toString("yyyy-MM-dd hh:mm:ss");//获取当前时间//将当前的时间转化到括号中的形式
switch(messageType)
{
case RefuseChat://拒绝聊天
//in>>后面如果为Qstring，则表示读取一个直到出现'\0'的字符串
in >> localHostName >> ipAddress >> secretAddress;//提取出消息发送方昵称名，IP和消息接收方IP
if(secretAddress == getIP())//是发给自己的
{
QMessageBox::information(this, tr("拒绝"), tr("来自（%1）的%2 拒绝你的聊天").arg(ipAddress).arg(localHostName));
}
break;
case StartChat://开始聊天
in >> localHostName >> ipAddress >> secretAddress;
if(secretAddress == getIP())
{
ChatWidgit *chatView = new ChatWidgit();
list.insert(ipAddress, chatView);//插入聊天窗口列表
connect(chatView, SIGNAL(closeChat(QString)), this, SLOT(closeFromChat(QString)));
connect(this, SIGNAL(sendMessagesZ(QString, QString, QString)), chatView, SLOT(setMessage(QString, QString, QString)));
connect(chatView, SIGNAL(sendMessagesFromChat(QString, QString)), this, SLOT(sendMessagesToMain(QString, QString)));
connect(chatView, SIGNAL(sendFile(QString, QString)), this, SLOT(hasFileToSend(QString, QString)));
chatView->setSecAddr(ipAddress, Name);//设置具体聊天窗口（chatView）
chatView->show();
}
break;
case AskStartChat://申请聊天
in >> localHostName >> ipAddress >> secretAddress;
if(secretAddress == getIP())
{
int btn = QMessageBox::information(this, tr("同意聊天"), tr("来自%1(%2)的聊天,是否接收？")\
.arg(ipAddress).arg(localHostName), QMessageBox::Yes, QMessageBox::No);
if(btn == QMessageBox::Yes)
{
ChatWidgit *chatView = new ChatWidgit();
list.insert(ipAddress, chatView);
connect(chatView, SIGNAL(closeChat(QString)), this, SLOT(closeFromChat(QString)));
connect(this, SIGNAL(sendMessagesZ(QString, QString, QString)), chatView, SLOT(setMessage(QString, QString, QString)));
connect(chatView, SIGNAL(sendMessagesFromChat(QString, QString)), this, SLOT(sendMessagesToMain(QString, QString)));
connect(chatView, SIGNAL(sendFile(QString, QString)), this, SLOT(hasFileToSend(QString, QString)));
chatView->setSecAddr(ipAddress, Name);
chatView->show();
sendMessage(StartChat, ipAddress);
}
else if(btn == QMessageBox::No)
{
sendMessage(RefuseChat, ipAddress);
}
}
break;
case Message://聊天消息
in >> localHostName >> ipAddress >> secretAddress >> message;
//QMessageBox::information(this, tr("0"), tr("%1sec\n%2").arg(secretAddress).arg(ipAddress));
if(secretAddress == getIP() )//发给自己的私有聊天
{
//QMessageBox::information(this, tr("0"), tr("%1sec").arg(secretAddress));
if(list.contains(ipAddress))
{
list[ipAddress]->show();
emit sendMessagesZ(ipAddress, tr("[ %1 ] %2").arg(localHostName).arg(time), message);//主窗口向具体聊天窗口发送聊天消息的信号
}
else
{
ChatWidgit *chatView = new ChatWidgit();
list.insert(ipAddress, chatView);
connect(chatView, SIGNAL(closeChat(QString)), this, SLOT(closeFromChat(QString)));
connect(this, SIGNAL(sendMessagesZ(QString, QString, QString)), chatView, SLOT(setMessage(QString, QString, QString)));
connect(chatView, SIGNAL(sendMessagesFromChat(QString, QString)), this, SLOT(sendMessagesToMain(QString, QString)));
connect(chatView, SIGNAL(sendFile(QString, QString)), this, SLOT(hasFileToSend(QString, QString)));
chatView->setSecAddr(ipAddress, Name);
chatView->show();
emit sendMessagesZ(ipAddress, tr("[ %1 ] %2").arg(localHostName).arg(time), message);
}
}
else if(secretAddress == "NULL")//群消息
{
if(list.contains("NULL"))
{
list["NULL"]->show();
emit sendMessagesZ(secretAddress, tr("[ %1 ] %2").arg(localHostName).arg(time), message);
}
else
{
ChatWidgit *chatView = new ChatWidgit();
list.insert(secretAddress, chatView);
connect(chatView, SIGNAL(closeChat(QString)), this, SLOT(closeFromChat(QString)));
connect(this, SIGNAL(sendMessagesZ(QString, QString, QString)), chatView, SLOT(setMessage(QString, QString, QString)));
connect(chatView, SIGNAL(sendMessagesFromChat(QString, QString)), this, SLOT(sendMessagesToMain(QString, QString)));
connect(chatView, SIGNAL(sendFile(QString, QString)), this, SLOT(hasFileToSend(QString, QString)));
chatView->setSecAddr(secretAddress, Name);
chatView->show();
emit sendMessagesZ(secretAddress, tr("[ %1 ] %2").arg(localHostName).arg(time), message);
}
}
break;
case NewParticipant://新用户加入
in >> localHostName >> ipAddress;
newParticipant(localHostName, ipAddress);//主窗口登记新用户
break;
case ParticipantLeft://用户离开
in >> localHostName;
//participantLeft(localHostName, time);
participantLeft(localHostName);//主窗口处理用户离开
break;
case FileName://发送文件
{
in >> localHostName >> ipAddress;
QString clientAddress, fileName;//
in >> clientAddress >> fileName;
QMessageBox::information(this, tr(""), tr("%1ipaddr\n%2sev\n%3file").arg(ipAddress).arg(clientAddress).arg(message));//
hasPendingFile(localHostName, ipAddress, clientAddress, fileName);//有文件需要接收
break;
}
case Refuse://拒绝接收文件
in >> localHostName;
QString serverAddress;//
in >> ipAddress >> serverAddress;
if(serverAddress == getIP())
{
this->Sender->refused();
}
break;
}
}
}
