chatgui: invite link dialogs, zxing-cpp QR code, crypto transport, channel improvements; msg_transport: chat protocol support

tools/chatgui/transport/msg_client.cpp

@@ -71,6 +71,26 @@ void MsgClient::sendSigned(const QByteArray& data) {
     m_socket->write(msg);
 }
 
+void MsgClient::sendTo(quint64 dstPeerId, const QByteArray& data) {
+    QByteArray msg = buildMessage(kDataSend, dstPeerId, 0, data);
+    m_socket->write(msg);
+}
+
+void MsgClient::requestPublicKey() {
+    QByteArray msg = buildMessage(kCtlGetPubkey, 0, 0, QByteArray());
+    m_socket->write(msg);
+}
+
+void MsgClient::requestPrivateKey() {
+    QByteArray msg = buildMessage(kCtlGetPrivkey, 0, 0, QByteArray());
+    m_socket->write(msg);
+}
+
+void MsgClient::requestPeerInfo(quint64 peerId) {
+    QByteArray msg = buildMessage(kCtlGetPeerInfo, peerId, 0, QByteArray());
+    m_socket->write(msg);
+}
+
 /* ============================================================================
  * Внутренние
  * ============================================================================ */
@@ -118,6 +138,17 @@ void MsgClient::dispatch(uint8_t type, quint64 id, const QByteArray& payload) {
         m_boundPeerId = id;
         emit bound(id);
         break;
+    case kRspPubkey:
+        emit publicKeyReceived(payload);
+        break;
+    case kRspPrivkey:
+        emit privateKeyReceived(payload);
+        break;
+    case kRspPeerInfo:
+        if (payload.size() >= 64) {
+            emit peerInfoReceived(id, payload.left(32), payload.mid(32, 32));
+        }
+        break;
     case kDataRecv:
         emit received(id, payload);
         break;