mitm.djigzo.web.validators.URIValidator.java Source code

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Here is the source code for mitm.djigzo.web.validators.URIValidator.java

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/*
 * Copyright (c) 2010-2011, Martijn Brinkers, Djigzo.
 * 
 * This file is part of Djigzo email encryption.
 *
 * Djigzo is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License 
 * version 3, 19 November 2007 as published by the Free Software 
 * Foundation.
 *
 * Djigzo 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 Djigzo. If not, see <http://www.gnu.org/licenses/>
 *
 * Additional permission under GNU AGPL version 3 section 7
 * 
 * If you modify this Program, or any covered work, by linking or 
 * combining it with saaj-api-1.3.jar, saaj-impl-1.3.jar, 
 * wsdl4j-1.6.1.jar (or modified versions of these libraries), 
 * containing parts covered by the terms of Common Development and 
 * Distribution License (CDDL), Common Public License (CPL) the 
 * licensors of this Program grant you additional permission to 
 * convey the resulting work.
 */
package mitm.djigzo.web.validators;

import mitm.common.util.URIUtils;
import mitm.common.util.URIUtils.URIType;

import org.apache.commons.lang.StringUtils;
import org.apache.tapestry5.Field;
import org.apache.tapestry5.MarkupWriter;
import org.apache.tapestry5.ValidationException;
import org.apache.tapestry5.ioc.MessageFormatter;
import org.apache.tapestry5.services.FormSupport;
import org.apache.tapestry5.validator.AbstractValidator;

/**
 * Validator that checks whether the input is valid URI. An optional parameter (FILL, BASE, RELATIVE) determines 
 * whether the URI should be a full URI, base URI or a relative URI. 
 * 
 * @author Martijn Brinkers
 *
 */
public class URIValidator extends AbstractValidator<String, String> {
    public static final String NAME = "uri";

    public URIValidator() {
        super(String.class, String.class, "validate-uri");
    }

    @Override
    public void validate(Field field, String type, MessageFormatter formatter, String value)
            throws ValidationException {
        value = StringUtils.trimToNull(value);

        if (value != null) {
            value = value.trim();

            URIType uriType = URIUtils.URIType.valueOf(StringUtils.defaultString(type).toUpperCase());

            if (uriType == null) {
                uriType = URIType.FULL;
            }

            if (!URIUtils.isValidURI(value, uriType)) {
                throw new ValidationException(formatter.format(field.getLabel(), type));
            }
        }
    }

    @Override
    public void render(Field field, String type, MessageFormatter formatter, MarkupWriter writer,
            FormSupport formSupport) {
        /*
         * Empty on purpose because we do not have a Javascript validator
         */
    }
}