Implement basic SSL client and server sockets

src/http/qhttp/private/qhttpclient_private.hpp

@@ -78,6 +78,9 @@ public:
         if ( isocket.ibackendType == ETcpSocket ) {
             initTcpSocket();
 
+        } else if ( isocket.ibackendType == ESslSocket ) {
+            initSslSocket();
+
         } else if ( isocket.ibackendType == ELocalSocket ) {
             initLocalSocket();
         }
@@ -86,7 +89,7 @@ public:
 public:
     int  messageBegin(http_parser* parser);
     int  url(http_parser*, const char*, size_t) {
-        return 0; // not used in parsing incoming respone.
+        return 0; // not used in parsing incoming response.
     }
     int  status(http_parser* parser, const char* at, size_t length) ;
     int  headerField(http_parser* parser, const char* at, size_t length);
@@ -152,6 +155,31 @@ private:
                 );
     }
 
+    void initSslSocket() {
+        QSslSocket* sok    =  new QSslSocket(q_func());
+        isocket.itcpSocket = sok;
+        
+        QObject::connect(
+            sok,  &QSslSocket::encrypted,
+            [this](){ onConnected(); }
+        );
+        QObject::connect(
+            sok,  &QSslSocket::readyRead,
+            [this](){ onReadyRead(); }
+        );
+        QObject::connect(
+            sok,  &QSslSocket::bytesWritten,
+            [this](qint64){
+                const auto& ts = isocket.itcpSocket;
+                if ( ts->bytesToWrite() == 0  &&  ilastRequest )
+                    emit ilastRequest->allBytesWritten();
+            });
+        QObject::connect(
+            sok,      &QSslSocket::disconnected,
+            q_func(), &QHttpClient::disconnected
+        );
+    }
+
     void initLocalSocket() {
         QLocalSocket* sok    = new QLocalSocket(q_func());
         isocket.ilocalSocket = sok;

src/http/qhttp/private/qhttpserver_private.hpp

@@ -70,7 +70,7 @@ public:
     void        initialize(TBackend backend, QHttpServer* parent) {
         ibackend = backend;
 
-        if ( ibackend == ETcpSocket ) {
+        if ( ibackend == ETcpSocket || ibackend == ESslSocket ) {
             itcpServer.reset( new BackendServer<QTcpServer>(parent) );
             ilocalServer.reset( nullptr );
 

src/http/qhttp/private/qhttpserverconnection_private.hpp

@@ -50,6 +50,9 @@ public:
         if ( bend == ETcpSocket ) {
             initTcpSocket(sokDesc);
         
+        } else if ( bend == ESslSocket) {
+            initSslSocket(sokDesc);
+
         } else if ( bend == ELocalSocket ) {
             initLocalSocket(sokDesc);
         }
@@ -131,6 +134,29 @@ private:
                 );
     }
     
+    void initSslSocket(qintptr sokDesc) {
+        QSslSocket* sok    = new QSslSocket( q_func() );
+        isocket.itcpSocket = sok;
+        sok->setSocketDescriptor(sokDesc);
+        
+        QObject::connect(
+            sok,  &QSslSocket::readyRead,
+            [this](){ onReadyRead(); }
+        );
+        QObject::connect(
+            sok,  &QSslSocket::bytesWritten,
+            [this](){
+                auto btw = isocket.itcpSocket->bytesToWrite();
+                if ( btw == 0  &&  ilastResponse )
+                    emit ilastResponse->allBytesWritten();
+            });
+        QObject::connect(
+            sok,      &QSslSocket::disconnected,
+            q_func(), &QHttpConnection::disconnected,
+                         Qt::QueuedConnection
+        );
+    }
+
     void initLocalSocket(qintptr sokDesc) {
         QLocalSocket* sok    = new QLocalSocket( q_func() );
         isocket.ilocalSocket = sok;

src/http/qhttp/private/qsocket.hpp

@@ -13,6 +13,7 @@
 #include "qhttpfwd.hpp"
 
 #include <QTcpSocket>
+#include <QSslSocket>
 #include <QLocalSocket>
 #include <QUrl>
 ///////////////////////////////////////////////////////////////////////////////
@@ -73,8 +74,12 @@ public:
     }
 
     void connectTo(const QString& host, quint16 port) {
-        if ( itcpSocket )
-            itcpSocket->connectToHost(host, port);
+        if ( itcpSocket ) {
+            if ( ibackendType == ESslSocket )
+                static_cast<QSslSocket*>(itcpSocket)->connectToHostEncrypted(host, port);
+            else
+                itcpSocket->connectToHost(host, port);
+        }
     }
 
     qint64 readRaw(char* buffer, int maxlen) {
@@ -88,8 +93,9 @@ public:
     }
 
     void writeRaw(const QByteArray& data) {
-        if ( itcpSocket )
+        if ( itcpSocket ) {
             itcpSocket->write(data);
+        }
 
         else if ( ilocalSocket )
             ilocalSocket->write(data);

src/http/qhttp/qhttpclient.cpp

@@ -127,7 +127,9 @@ QHttpClient::request(THttpMethod method, QUrl url,
             d->isocket.connectTo(url);
 
     } else {
-        d->isocket.ibackendType = ETcpSocket;
+        bool ssl = url.scheme() == "https";
+
+        d->isocket.ibackendType = ssl ? ESslSocket : ETcpSocket;
         d->initializeSocket();
 
         requestCreator();
@@ -135,7 +137,7 @@ QHttpClient::request(THttpMethod method, QUrl url,
         if ( d->isocket.isOpen() )
             d->onConnected();
         else
-            d->isocket.connectTo(url.host(), url.port(80));
+            d->isocket.connectTo(url.host(), url.port(ssl ? 443 : 80));
     }
 
     return true;

src/http/qhttp/qhttpclient.hpp

@@ -13,6 +13,7 @@
 #include "qhttpfwd.hpp"
 
 #include <QTcpSocket>
+#include <QSslSocket>
 #include <QUrl>
 
 ///////////////////////////////////////////////////////////////////////////////

src/http/qhttp/qhttpfwd.hpp

@@ -151,7 +151,7 @@ enum TStatusCode {
 /** The backend of QHttp library. */
 enum TBackend {
     ETcpSocket     = 0, ///< client / server work on top of TCP/IP stack. (default)
-    ESslSocket     = 1, ///< client / server work on SSL/TLS tcp stack. (not implemented yet)
+    ESslSocket     = 1, ///< client / server work on SSL/TLS tcp stack.
     ELocalSocket   = 2  ///< client / server work on local socket (unix socket).
 };
 

src/http/qhttp/qhttpserver.cpp

@@ -35,7 +35,7 @@ bool
 QHttpServer::listen(const QHostAddress& address, quint16 port, const qhttp::server::TServerHandler& handler) {
     Q_D(QHttpServer);
 
-    d->initialize(ETcpSocket, this);
+    d->initialize(d->ibackend, this);
     d->ihandler = handler;
     return d->itcpServer->listen(address, port);
 }
@@ -44,10 +44,10 @@ bool
 QHttpServer::isListening() const {
     const Q_D(QHttpServer);
 
-    if ( d->ibackend == ETcpSocket    &&    d->itcpServer )
+    if ( ( d->ibackend == ETcpSocket || d->ibackend == ESslSocket ) && d->itcpServer )
         return d->itcpServer->isListening();
 
-    else if ( d->ibackend == ELocalSocket    &&    d->ilocalServer )
+    else if ( d->ibackend == ELocalSocket && d->ilocalServer )
         return d->ilocalServer->isListening();
 
     return false;

src/http/qhttp/qhttpserverconnection.cpp

@@ -147,7 +147,7 @@ QHttpConnectionPrivate::headersComplete(http_parser* parser) {
                 );
 
     // set client information
-    if ( isocket.ibackendType == ETcpSocket ) {
+    if ( isocket.ibackendType == ETcpSocket || isocket.ibackendType == ESslSocket ) {
         ilastRequest->d_func()->iremoteAddress = isocket.itcpSocket->peerAddress().toString();
         ilastRequest->d_func()->iremotePort    = isocket.itcpSocket->peerPort();