我有一个客户端-服务器应用程序,之前是使用 QTcpSocket
进行通信的。现在我想要改为加密的 SSL 连接,因此尝试切换到 QSslSocket
。但是连接不上服务器。
这里是客户端的代码:
ConnectionHandler::ConnectionHandler(QString ip, int port, QObject *parent) : QObject(parent) {
// connect(this->socket, SIGNAL(connected()), this, SLOT(connected()));
connect(this->socket, SIGNAL(disconnected()), this, SLOT(disconnected()));
connect(this->socket, SIGNAL(readyRead()), this, SLOT(readyRead()));
connect(this->socket, SIGNAL(encrypted()), this, SLOT(encryptedReady()));
connect(this->socket, SIGNAL(sslErrors(const QList<QSslError> &)), this, SLOT(SSLerrorOccured(const QList<QSslError> &)));
connect(this->socket, SIGNAL(error(QAbstractSocket::SocketError)), this, SLOT(socketError(QAbstractSocket::SocketError)));
connect(this->socket, SIGNAL(stateChanged(QAbstractSocket::SocketState)), this, SLOT(socketStateChanged(QAbstractSocket::SocketState)));
this->ip = ip;
this->port = port;
}
void ConnectionHandler::socketStateChanged(QAbstractSocket::SocketState state) {
qDebug() << state;
}
void ConnectionHandler::socketError(QAbstractSocket::SocketError) {
qDebug() << this->socket->errorString();
}
void ConnectionHandler::encryptedReady() {
qDebug() << "READY";
}
void ConnectionHandler::SSLerrorOccured(const QList<QSslError> &) {
qDebug() << "EEROR";
}
void ConnectionHandler::connectToServer() {
// this->socket->connectToHost(this->ip, this->port);
this->socket->connectToHostEncrypted(this->ip, this->port);
if (!this->socket->waitForConnected(5000)) {
this->socket->close();
this->errorMsg = this->socket->errorString();
}
}
void ConnectionHandler::connected() {
qDebug() << "connected";
this->connectedHostAddress = this->socket->peerAddress().toString();
this->connectionEstablished = true;
this->localIP = this->socket->localAddress().toString();
this->localPort = this->socket->localPort();
}
以下是针对服务器的内容:
ClientHandler::ClientHandler() {
this->socket->setProtocol(QSsl::SslV3);
this->socket->setSocketOption(QAbstractSocket::KeepAliveOption, true);
}
void ClientHandler::run() {
if (!this->fd)
return;
connect(this->socket, SIGNAL(readyRead()), this, SLOT(readyRead()));
connect(this->socket, SIGNAL(disconnected()), this, SLOT(disconnected()), Qt::DirectConnection);
connect(this->socket, SIGNAL(encrypted()), this, SLOT(encryptedReady()));
connect(this->socket, SIGNAL(sslErrors(const QList<QSslError> &)), this, SLOT(sslErrorOccured(const QList<QSslError> &)));
connect(this->socket, SIGNAL(error(QAbstractSocket::SocketError)), this, SLOT(socketError(QAbstractSocket::SocketError)));
connect(this->socket, SIGNAL(stateChanged(QAbstractSocket::SocketState)), this, SLOT(socketStateChanged(QAbstractSocket::SocketState)));
if (!this->socket->setSocketDescriptor(this->fd)) {
emit error(socket->error());
return;
} else {
connect(this->socket, SIGNAL(encrypted()), this, SLOT(ready()));
this->socket->startServerEncryption();
}
this->peerIP = socket->peerAddress().toString();
QString tmp;
tmp.append(QString("%1").arg(socket->peerPort()));
this->peerPort = tmp;
QHostInfo::lookupHost(this->peerIP, this, SLOT(lookedUp(QHostInfo)));
}
void ClientHandler::socketStateChanged(QAbstractSocket::SocketState state) {
qDebug() << state;
}
void ClientHandler::socketError(QAbstractSocket::SocketError) {
qDebug() << this->socket->errorString();
}
void ClientHandler::setFileDescriptor(int fd) {
this->fd = fd;
}
void ClientHandler::ready() {
qDebug() << "READY";
}
void ClientHandler::sslErrorOccured(const QList<QSslError> &) {
qDebug() << "EEROR";
}
void ClientHandler::encryptedReady() {
qDebug() << "READY";
}
我收到的客户端输出为:
QAbstractSocket::HostLookupState
QAbstractSocket::ConnectingState
QAbstractSocket::ConnectedState
"The remote host closed the connection"
QAbstractSocket::ClosingState
QAbstractSocket::UnconnectedState
对于服务器而言:
QAbstractSocket::ConnectedState
"Error during SSL handshake: error:1408A0C1:SSL routines:SSL3_GET_CLIENT_HELLO:no shared cipher"
QAbstractSocket::UnconnectedState
有人知道如何修复这个问题吗?