/*************************************************************************
 *                                                                       *
 *  EJBCA Community: The OpenSource Certificate Authority                *
 *                                                                       *
 *  This software is free software; you can redistribute it and/or       *
 *  modify it under the terms of the GNU Lesser General Public           *
 *  License as published by the Free Software Foundation; either         *
 *  version 2.1 of the License, or any later version.                    *
 *                                                                       *
 *  See terms of license at gnu.org.                                     *
 *                                                                       *
 *************************************************************************/

package org.ejbca.ui.web.admin;

import org.apache.log4j.Logger;
import org.ejbca.ui.web.admin.configuration.EjbcaJSFHelper;

import javax.faces.application.FacesMessage;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.validator.Validator;
import javax.faces.validator.ValidatorException;
import java.net.URI;
import java.net.URISyntaxException;

/** JSF validator to check that input fields are valid urls
 *
 * @version $Id: UrlValidator.java 28844 2018-05-04 08:31:02Z samuellb $
 */
public class UrlValidator implements Validator {
    private static final Logger log = Logger.getLogger(UrlValidator.class);

    @Override
    public void validate(FacesContext facesContext, UIComponent uiComponent, Object o) throws ValidatorException {
        StringBuilder url = new StringBuilder();
        String urlValue = o.toString();
        if (log.isDebugEnabled()) {
            log.debug("Validating component " + uiComponent.getClientId(facesContext) + " with value \"" + urlValue + "\"");
        }

        url.append(urlValue);
        try {
            new URI(url.toString());
        } catch (URISyntaxException e) {
            final String msg = EjbcaJSFHelper.getBean().getEjbcaWebBean().getText("INVALIDURL");
            throw new ValidatorException(new FacesMessage(FacesMessage.SEVERITY_ERROR, msg, null));
        }
    }
}