org.entcore.common.validation.ExtensionValidator.java Source code

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Here is the source code for org.entcore.common.validation.ExtensionValidator.java

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/*
 * Copyright  "Open Digital Education", 2018
 *
 * This program is published by "Open Digital Education".
 * You must indicate the name of the software and the company in any production /contribution
 * using the software and indicate on the home page of the software industry in question,
 * "powered by Open Digital Education" with a reference to the website: https://opendigitaleducation.com/.
 *
 * This program is free software, licensed under the terms of the GNU Affero General Public License
 * as published by the Free Software Foundation, version 3 of the License.
 *
 * You can redistribute this application and/or modify it since you respect the terms of the GNU Affero General Public License.
 * If you modify the source code and then use this modified source code in your creation, you must make available the source code of your modifications.
 *
 * You should have received a copy of the GNU Affero General Public License along with the software.
 * If not, please see : <http://www.gnu.org/licenses/>. Full compliance requires reading the terms of this license and following its directives.
 */

package org.entcore.common.validation;

import fr.wseduc.webutils.DefaultAsyncResult;
import io.vertx.core.AsyncResult;
import io.vertx.core.Handler;
import io.vertx.core.json.JsonArray;
import io.vertx.core.json.JsonObject;

public class ExtensionValidator extends FileValidator {

    private final JsonArray blockedExtension;

    public ExtensionValidator(JsonArray blockedExtension) {
        this.blockedExtension = blockedExtension;
    }

    @Override
    protected void validate(JsonObject metadata, JsonObject context, Handler<AsyncResult<Void>> handler) {
        final String filename = metadata.getString("filename", "");
        final int idx = filename.lastIndexOf('.');
        if (idx > 0 && idx < (filename.length() - 1)
                && blockedExtension.contains(filename.substring(idx + 1).toLowerCase())) {
            handler.handle(new DefaultAsyncResult<Void>(new ValidationException("blocked.extension")));
        } else {
            handler.handle(new DefaultAsyncResult<>((Void) null));
        }
    }

}