WebGoat/webgoat-container/src/main/java/org/owasp/webgoat/LessonTemplateResolver.java
Nanne Baars 1a83e2825e Code style (#696)
* Remove Guava dependency from WebGoat

* Add Checkstyle to the project with very basic standards so we have a
style across lessons. It does not interfere with basic Intellij formatting
2019-11-03 18:11:09 +01:00

80 lines
3.2 KiB
Java

/**
* ************************************************************************************************
* <p>
* <p>
* This file is part of WebGoat, an Open Web Application Security Project utility. For details,
* please see http://www.owasp.org/
* <p>
* Copyright (c) 2002 - 20014 Bruce Mayhew
* <p>
* This program is free software; you can redistribute it and/or modify it under the terms of the
* GNU General Public License as published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
* <p>
* 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.
* <p>
* You should have received a copy of the GNU General Public License along with this program; if
* not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
* <p>
* Getting Source ==============
* <p>
* Source for this application is maintained at https://github.com/WebGoat/WebGoat, a repository for free software
* projects.
*
* @author WebGoat
* @version $Id: $Id
* @since October 28, 2003
*/
package org.owasp.webgoat;
import org.springframework.core.io.ResourceLoader;
import org.thymeleaf.IEngineConfiguration;
import org.thymeleaf.templateresolver.FileTemplateResolver;
import org.thymeleaf.templateresource.ITemplateResource;
import org.thymeleaf.templateresource.StringTemplateResource;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
/**
* Dynamically resolve a lesson. In the html file this can be invoked as:
*
* <code>
* <div th:case="true" th:replace="lesson:__${lesson.class.simpleName}__"></div>
* </code>
*
* Thymeleaf will invoke this resolver based on the prefix and this implementation will resolve the html in the plugins directory
*/
public class LessonTemplateResolver extends FileTemplateResolver {
private static final String PREFIX = "lesson:";
private ResourceLoader resourceLoader;
private Map<String, byte[]> resources = new HashMap<>();
public LessonTemplateResolver(ResourceLoader resourceLoader) {
this.resourceLoader = resourceLoader;
setResolvablePatterns(Set.of(PREFIX + "*"));
}
@Override
protected ITemplateResource computeTemplateResource(IEngineConfiguration configuration, String ownerTemplate, String template, String resourceName, String characterEncoding, Map<String, Object> templateResolutionAttributes) {
var templateName = resourceName.substring(PREFIX.length());;
byte[] resource = resources.get(templateName);
if (resource == null) {
try {
resource = resourceLoader.getResource("classpath:/html/" + templateName + ".html").getInputStream().readAllBytes();
} catch (IOException e) {
e.printStackTrace();
}
resources.put(resourceName, resource);
}
return new StringTemplateResource(new String(resource, StandardCharsets.UTF_8));
}
}