PropertiesUtils.java

/*
 * GovWay - A customizable API Gateway 
 * https://govway.org
 * 
 * Copyright (c) 2005-2025 Link.it srl (https://link.it). 
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3, as published by
 * the Free Software Foundation.
 *
 * 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
package org.openspcoop2.security.message.utils;

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.util.Map;
import java.util.Properties;

import org.openspcoop2.generic_project.exception.NotFoundException;
import org.openspcoop2.security.SecurityException;
import org.openspcoop2.security.message.MessageSecurityContext;
import org.openspcoop2.security.message.constants.SecurityConstants;

/**
 * PropertiesUtils
 *
 * @author Andrea Poli (apoli@link.it)
 * @author $Author$
 * @version $Rev$, $Date$
 */
public class PropertiesUtils {

    public static EncryptionBean getSenderEncryptionBean(MessageSecurityContext messageSecurityContext) throws NotFoundException, SecurityException {
        
        Properties p = _readProperties(messageSecurityContext.getOutgoingProperties(), SecurityConstants.ENCRYPTION_PROPERTY_REF_ID);
        if(p==null) {
            p = _readProperties(messageSecurityContext.getOutgoingProperties(), SecurityConstants.ENCRYPTION_PROPERTY_FILE);
        }
        
        if(p==null) {
            throw new NotFoundException(SecurityConstants.ENCRYPTION_PROPERTY_REF_ID+"/"+SecurityConstants.ENCRYPTION_PROPERTY_FILE+" non fornita");
        }

        EncryptionBean bean = new EncryptionBean();
        
        bean.setProperties(p);
        
        return bean;
    }
    public static EncryptionBean getReceiverEncryptionBean(MessageSecurityContext messageSecurityContext) throws NotFoundException, SecurityException {

        Properties p = _readProperties(messageSecurityContext.getIncomingProperties(), SecurityConstants.DECRYPTION_PROPERTY_REF_ID);
        if(p==null) {
            p = _readProperties(messageSecurityContext.getIncomingProperties(), SecurityConstants.DECRYPTION_PROPERTY_FILE);
        }
        
        if(p==null) {
            throw new NotFoundException(SecurityConstants.DECRYPTION_PROPERTY_REF_ID+"/"+SecurityConstants.DECRYPTION_PROPERTY_FILE+" non fornita");
        }

        EncryptionBean bean = new EncryptionBean();
        
        bean.setProperties(p);
        
        return bean;
        
    }

    public static SignatureBean getSenderSignatureBean(MessageSecurityContext messageSecurityContext) throws NotFoundException, SecurityException {

        Properties p = _readProperties(messageSecurityContext.getOutgoingProperties(), SecurityConstants.SIGNATURE_PROPERTY_REF_ID);
        if(p==null) {
            p = _readProperties(messageSecurityContext.getOutgoingProperties(), SecurityConstants.SIGNATURE_PROPERTY_FILE);
        }
        
        if(p==null) {
            throw new NotFoundException(SecurityConstants.SIGNATURE_PROPERTY_REF_ID+"/"+SecurityConstants.SIGNATURE_PROPERTY_FILE+" non fornita");
        }
        SignatureBean bean = new SignatureBean();
        
        bean.setProperties(p);
        
        return bean;
        
    }   
    public static SignatureBean getReceiverSignatureBean(MessageSecurityContext messageSecurityContext) throws NotFoundException, SecurityException {

        Properties p = _readProperties(messageSecurityContext.getIncomingProperties(), SecurityConstants.SIGNATURE_VERIFICATION_PROPERTY_REF_ID);
        if(p==null) {
            p = _readProperties(messageSecurityContext.getIncomingProperties(), SecurityConstants.SIGNATURE_VERIFICATION_PROPERTY_FILE);
        }
        if(p==null) {
            p = _readProperties(messageSecurityContext.getIncomingProperties(), SecurityConstants.SIGNATURE_PROPERTY_REF_ID);
        }
        if(p==null) {
            p = _readProperties(messageSecurityContext.getIncomingProperties(), SecurityConstants.SIGNATURE_PROPERTY_FILE);
        }
        
        if(p==null) {
            throw new NotFoundException(SecurityConstants.SIGNATURE_VERIFICATION_PROPERTY_REF_ID+"/"+SecurityConstants.SIGNATURE_VERIFICATION_PROPERTY_FILE+"/"+
                    SecurityConstants.SIGNATURE_PROPERTY_REF_ID+"/"+SecurityConstants.SIGNATURE_PROPERTY_FILE+" non fornita");
        }

        SignatureBean bean = new SignatureBean();
        
        bean.setProperties(p);
        
        return bean;
        
    }
    
    private static Properties _readProperties(Map<String,Object> map, String property) throws SecurityException {
    
        String path = null;
        File fPath = null;
        
        if(map.containsKey(property)) {
            Object o = map.get(property);
            if(o instanceof Properties) {
                return (Properties) o;
            }
            else if(o instanceof File) {
                fPath = (File) o;
            }
            else if(o instanceof String) {
                path = (String) o;
            }
            else {
                throw new SecurityException("Found property ["+property+"] with wrong type");
            }
        }
        
        if(fPath!=null) {
            try {
                return _readProperties(fPath);
            }catch(Exception e) {
                throw new SecurityException("Occurs error (property ["+property+"]): "+e.getMessage(),e);
            }
        }
        else if(path!=null) {
            File check = new File(path);
            if(check.exists()) {
                return _readProperties(check);
            }
            else {
                InputStream is = PropertiesUtils.class.getResourceAsStream(path);
                if(is==null && path.startsWith("/")==false) {
                    is = PropertiesUtils.class.getResourceAsStream("/"+path);
                }
                if(is==null) {
                    throw new SecurityException("Occurs error (property ["+property+"]): resource ["+path+"] not found");
                }
            }
        }
        return null;
    }
    private static Properties _readProperties(File file) throws SecurityException {
        if(file.exists()==false) {
            throw new SecurityException("Cannot exists");
        }
        if(file.canRead()==false) {
            throw new SecurityException("Cannot read");
        }
        if(file.isFile()==false) {
            throw new SecurityException("Isn't file");
        }
        Properties p = new Properties();
        FileInputStream fin = null;
        try {
            fin = new FileInputStream(file);
            p.load(fin);
        }
        catch(Exception e) {
            throw new SecurityException(e.getMessage(),e);
        }
        finally {
            try {
                if(fin!=null) {
                    fin.close();
                }
            }catch(Exception eClose) {
                // ignore
            }
        }
        return p;
    }
}