Examples with ProtocolFactory org.openecard.common.ifd.ProtocolFactory used on opensource projects

Example 1 with ProtocolFactory

use of org.openecard.common.ifd.ProtocolFactory in project open-ecard by ecsec.

the class IFD method establishChannel.

@Override
public EstablishChannelResponse establishChannel(EstablishChannel parameters) {
    byte[] slotHandle = parameters.getSlotHandle();
    try {
        SingleThreadChannel channel = cm.getSlaveChannel(slotHandle);
        TerminalInfo termInfo = new TerminalInfo(cm, channel);
        DIDAuthenticationDataType protoParam = parameters.getAuthenticationProtocolData();
        String protocol = protoParam.getProtocol();
        // check if it is PACE and try to perform native implementation
        // get pace capabilities
        List<PACECapabilities.PACECapability> paceCapabilities = termInfo.getPACECapabilities();
        List<String> supportedProtos = TerminalInfo.buildPACEProtocolList(paceCapabilities);
        // i don't care which type is supported, i try it anyways
        if (!supportedProtos.isEmpty() && supportedProtos.get(0).startsWith(protocol)) {
            // yeah, PACE seems to be supported by the reader, big win
            PACEInputType paceParam = new PACEInputType(protoParam);
            // extract variables needed for pace
            byte pinID = paceParam.getPINID();
            // optional elements
            byte[] chat = paceParam.getCHAT();
            String pin = paceParam.getPIN();
            byte[] certDesc = paceParam.getCertificateDescription();
            // prepare pace data structures
            // TODO: add supplied PIN
            EstablishPACERequest estPaceReq = new EstablishPACERequest(pinID, chat, null, certDesc);
            ExecutePACERequest execPaceReq = new ExecutePACERequest(ExecutePACERequest.Function.EstablishPACEChannel, estPaceReq.toBytes());
            // TODO: check if this additional check is really necessary
            if (estPaceReq.isSupportedType(paceCapabilities)) {
                byte[] reqData = execPaceReq.toBytes();
                LOG.debug("executeCtrlCode request: {}", ByteUtils.toHexString(reqData));
                // execute pace
                Map<Integer, Integer> features = termInfo.getFeatureCodes();
                byte[] resData = channel.transmitControlCommand(features.get(PCSCFeatures.EXECUTE_PACE), reqData);
                LOG.debug("Response of executeCtrlCode: {}", ByteUtils.toHexString(resData));
                // evaluate response
                ExecutePACEResponse execPaceRes = new ExecutePACEResponse(resData);
                if (execPaceRes.isError()) {
                    return WSHelper.makeResponse(EstablishChannelResponse.class, execPaceRes.getResult());
                }
                EstablishPACEResponse estPaceRes = new EstablishPACEResponse(execPaceRes.getData());
                // get values and prepare response
                PACEOutputType authDataResponse = paceParam.getOutputType();
                // mandatory fields
                authDataResponse.setRetryCounter(estPaceRes.getRetryCounter());
                authDataResponse.setEFCardAccess(estPaceRes.getEFCardAccess());
                // optional fields
                if (estPaceRes.hasCurrentCAR()) {
                    authDataResponse.setCurrentCAR(estPaceRes.getCurrentCAR());
                }
                if (estPaceRes.hasPreviousCAR()) {
                    authDataResponse.setPreviousCAR(estPaceRes.getPreviousCAR());
                }
                if (estPaceRes.hasIDICC()) {
                    authDataResponse.setIDPICC(estPaceRes.getIDICC());
                }
                // create response type and return
                EstablishChannelResponse response = WSHelper.makeResponse(EstablishChannelResponse.class, WSHelper.makeResultOK());
                response.setAuthenticationProtocolData(authDataResponse.getAuthDataType());
                return response;
            }
        }
        // check out available software protocols
        if (this.protocolFactories.contains(protocol)) {
            ProtocolFactory factory = this.protocolFactories.get(protocol);
            Protocol protoImpl = factory.createInstance();
            EstablishChannelResponse response = protoImpl.establish(parameters, env.getDispatcher(), this.gui);
            // register protocol instance for secure messaging when protocol was processed successful
            if (response.getResult().getResultMajor().equals(ECardConstants.Major.OK)) {
                channel.addSecureMessaging(protoImpl);
            }
            return response;
        }
        // if this point is reached a native implementation is not present, try registered protocols
        Result r = WSHelper.makeResultUnknownError("No such protocol available in this IFD.");
        return WSHelper.makeResponse(EstablishChannelResponse.class, r);
    } catch (Throwable t) {
        return WSHelper.makeResponse(EstablishChannelResponse.class, WSHelper.makeResult(t));
    }
}