org.sinekartads.share.webscripts.sign.SkdsSignCallPreSignWS.java Source code

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Here is the source code for org.sinekartads.share.webscripts.sign.SkdsSignCallPreSignWS.java

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/*
 * Copyright (C) 2010 - 2012 Jenia Software.
 *
 * This file is part of Sinekarta
 *
 * Sinekarta is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Sinekarta is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */
package org.sinekartads.share.webscripts.sign;

import java.math.BigInteger;

import org.apache.commons.lang3.ArrayUtils;
import org.sinekartads.dto.domain.DocumentDTO;
import org.sinekartads.dto.domain.SignatureDTO;
import org.sinekartads.dto.domain.TimeStampRequestDTO;
import org.sinekartads.dto.request.SkdsSignRequest.SkdsPreSignRequest;
import org.sinekartads.dto.response.SkdsSignResponse.SkdsPreSignResponse;
import org.sinekartads.dto.share.SignWizardDTO;
import org.sinekartads.dto.share.SignWizardDTO.TsSelection;
import org.sinekartads.model.domain.SignDisposition;
import org.sinekartads.model.oid.DigestAlgorithm;
import org.sinekartads.share.util.AlfrescoException;
import org.sinekartads.util.TemplateUtils;
import org.springframework.extensions.webscripts.connector.ConnectorService;
import org.springframework.util.Assert;

public class SkdsSignCallPreSignWS extends BaseSignController {

    public void setConnectorService(ConnectorService connectorService) {
        this.connectorService = connectorService;
    }

    @Override
    protected void processData(SignWizardDTO dto) throws AlfrescoException {

        DocumentDTO[] documents = dto.getDocuments();
        int last = dto.getDocuments()[0].getSignatures().length - 1;
        SignatureDTO signature = dto.getDocuments()[0].getSignatures()[last];
        Assert.isTrue(ArrayUtils.isNotEmpty(signature.getHexCertificateChain()));

        // Clone the chainSignature in order to update it without impacting on the DTO
        TsSelection tsSelection = TsSelection.valueOf(dto.getTsSelection());
        SignatureDTO chainSignature = TemplateUtils.Instantiation.clone(signature);
        TimeStampRequestDTO timeStampRequest = chainSignature.getTimeStampRequest();
        timeStampRequest.timestampDispositionToString(SignDisposition.TimeStamp.ENVELOPING);
        timeStampRequest.messageImprintAlgorithmToString(DigestAlgorithm.SHA256);
        timeStampRequest.nounceToString(BigInteger.ONE);

        // Update the nested timeStampRequest depending on the tsSelection
        switch (tsSelection) {
        case NONE: {
            timeStampRequest.setTsUrl("");
            timeStampRequest.setTsUsername("");
            timeStampRequest.setTsPassword("");
            break;
        }
        case DEFAULT: {
            timeStampRequest.setTsUrl(conf.getTsaUrl());
            timeStampRequest.setTsUsername(conf.getTsaUser());
            timeStampRequest.setTsPassword(conf.getTsaPassword());
            break;
        }
        default: {
        }
        }

        // Append the updated chainSignature to the documents' signatures, at the last position:
        //      the server-tier webScripts and the signature client implementations will consider 
        //      this one as the signature to be applied 
        for (DocumentDTO document : documents) {
            document.setSignatures((SignatureDTO[]) ArrayUtils.add(document.getSignatures(), chainSignature));
        }

        // Execute the pre-sign to the documents.
        SkdsPreSignRequest prereq = new SkdsPreSignRequest();
        prereq.documentsToBase64(documents);
        SkdsPreSignResponse dsiresp = postJsonRequest(prereq, SkdsPreSignResponse.class);
        documents = dsiresp.documentsFromBase64();
        dto.setDocuments(documents);
    }

    @Override
    protected int currentStep() {
        return STEP_PRESIGN;
    }
}