64 lines
2.1 KiB
Java
64 lines
2.1 KiB
Java
/*
|
|
* SPDX-FileCopyrightText: Copyright © 2016 WebGoat authors
|
|
* SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
package org.owasp.webgoat.container;
|
|
|
|
import java.io.IOException;
|
|
import java.nio.charset.StandardCharsets;
|
|
import java.util.HashMap;
|
|
import java.util.Map;
|
|
import java.util.Set;
|
|
import lombok.extern.slf4j.Slf4j;
|
|
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;
|
|
|
|
/**
|
|
* 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>
|
|
*
|
|
* <p>Thymeleaf will invoke this resolver based on the prefix and this implementation will resolve
|
|
* the html in the plugins directory
|
|
*/
|
|
@Slf4j
|
|
public class LessonTemplateResolver extends FileTemplateResolver {
|
|
|
|
private static final String PREFIX = "lesson:";
|
|
private final ResourceLoader resourceLoader;
|
|
private final 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:/" + templateName)
|
|
.getInputStream()
|
|
.readAllBytes();
|
|
} catch (IOException e) {
|
|
log.error("Unable to find lesson HTML: {}", template);
|
|
}
|
|
resources.put(templateName, resource);
|
|
}
|
|
return new StringTemplateResource(new String(resource, StandardCharsets.UTF_8));
|
|
}
|
|
}
|