be.redtree.beidsign.service.ScriptBeidSignService.java Source code

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Here is the source code for be.redtree.beidsign.service.ScriptBeidSignService.java

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/*
 * Copyright (C) 2014  Jelle Hellemans
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package be.redtree.beidsign.service;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;

import org.alfresco.model.ContentModel;
import org.alfresco.repo.jscript.ScriptNode;
import org.alfresco.repo.processor.BaseProcessorExtension;
import org.alfresco.service.ServiceRegistry;
import org.alfresco.service.cmr.repository.ContentReader;
import org.alfresco.service.cmr.repository.NodeRef;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import be.redtree.beidsign.model.BEIDSignModel;
import be.redtree.beidsign.signature.UserSignatureFactory;

import com.itextpdf.text.pdf.PdfReader;

public class ScriptBeidSignService extends BaseProcessorExtension {

    private static final Log logger = LogFactory.getLog(ScriptBeidSignService.class);
    private ServiceRegistry serviceRegistry;
    private UserSignatureFactory userSignatureFactory;
    private BeidSignService beidSignService;

    public static final String signatureValidName = "signatureValid";
    public static final String hashValidName = "hashValid";

    public String getClassName() {
        return "ScriptBeidSignService";
    }

    public String getSignatureSource(String user) {
        return userSignatureFactory.getUserSignature(user).getSignatureSource();
    }

    /**
     * Get a nodeRef string for the user's signature image
     * 
     * @param user
     * @return
     */
    public ScriptNode getSignatureImageNode(String user) {
        NodeRef image = beidSignService.getUserSignatureNode(user, BEIDSignModel.ASSOC_SIGNERSIGNATUREIMAGE);
        if (image != null) {
            return new ScriptNode(image, serviceRegistry);
        } else {
            return null;
        }
    }

    /**
     * Gets the page count for a PDF document
     * 
     * @param nodeRef
     * @return
     */
    public int getPageCount(String nodeRef) {
        try {
            ContentReader reader = serviceRegistry.getContentService().getReader(new NodeRef(nodeRef),
                    ContentModel.PROP_CONTENT);
            PdfReader pdfReader = new PdfReader(reader.getContentInputStream());
            int count = pdfReader.getNumberOfPages();
            pdfReader.close();
            return count;

        } catch (IOException ioex) {
            return -1;
        }
    }

    /**
     * Returns "true" if this user has all of the required bits and pieces (keystore) to
     * apply a digital signature.
     * 
     * @param user
     */
    public boolean getSignatureAvailable(String user) {
        return userSignatureFactory.getUserSignature(user).signatureAvailable();
    }

    public void setServiceRegistry(ServiceRegistry serviceRegistry) {
        this.serviceRegistry = serviceRegistry;
    }

    public void setUserSignatureFactory(UserSignatureFactory userSignatureFactory) {
        this.userSignatureFactory = userSignatureFactory;
    }

    public void setBeidSignService(BeidSignService beidSignService) {
        this.beidSignService = beidSignService;
    }
}