AEM Cloud Service - Case Insensitive URLS for accessing Site pages | AEM Community Blog Seeding

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AEM Cloud Service - Case Insensitive URLS for accessing Site pages by Sreekanth Choudry Nalabotu

Abstract

Goal
Cloud Service Version 2022.1.6198.20220113T173638Z-211100 (Jan 13, 2022)

Apache mod_speling module can be used to configure Case Insensitivity for URLs on an onPrem AEM instance. This post is for trying the same thing on a Cloud Services AEM...

Add a filter apps.experienceaem.sites.core.filters.CaseInsensitiveURLMatchFilter with the following code. It attempts to look up the page resource by converting the URL to lower case...

package apps.experienceaem.sites.core.filters;

import org.apache.sling.api.SlingHttpServletRequest;
import org.apache.sling.api.SlingHttpServletResponse;
import org.apache.sling.api.resource.NonExistingResource;
import org.apache.sling.api.resource.Resource;
import org.apache.sling.api.resource.ResourceResolver;
import org.osgi.framework.Constants;
import org.osgi.service.component.annotations.Component;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.servlet.*;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Locale;

@Component(
service = Filter.class,
immediate = true,
name = "Experience AEM Case Insensitive URL Filter",
property = {
Constants.SERVICE_RANKING + ":Integer=-99",
"sling.filter.scope=COMPONENT",
"sling.filter.pattern=(/content/eaem-case-insensitive-urls/.*.html)",
}
)
public class CaseInsensitiveURLMatchFilter implements Filter {
private static final Logger log = LoggerFactory.getLogger(CaseInsensitiveURLMatchFilter.class);

@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
SlingHttpServletRequest slingRequest = (SlingHttpServletRequest) request;
SlingHttpServletResponse slingResponse = (SlingHttpServletResponse) response;

try {
String uri = slingRequest.getRequestURI();

if(!uri.endsWith(".html")){
chain.doFilter(request, response);
return;
}

Resource resource = slingRequest.getResource();

if( (resource != null) && !(resource instanceof NonExistingResource)){
chain.doFilter(request, response);
return;
}

ResourceResolver resolver = slingRequest.getResourceResolver();

String resPath = uri.substring(0,uri.lastIndexOf(".html"));
resPath = resPath.toLowerCase();

resource = resolver.getResource(resPath);

if(resource != null){
RequestDispatcher dp = slingRequest.getRequestDispatcher(resPath + ".html");
dp.include(slingRequest, slingResponse);
return;
}

chain.doFilter(request, response);
} catch (Exception e) {
log.error("Error finding resource : " + slingRequest.getRequestURI());
slingResponse.sendError(HttpServletResponse.SC_NOT_FOUND);
}
}

@Override
public void init(FilterConfig filterConfig) throws ServletException {
}

@Override
public void destroy() {
}
}

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AEM Cloud Service - Case Insensitive URLS for accessing Site pages

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