Goal
A servlet to return encrypt/decrypt words
Package Install
Encryption Request: http://localhost:4502/bin/experienceaem/encrypt?words=experience,aem
Decryption Request: http://localhost:4502/bin/experienceaem/decrypt?words={1e5cfddfb039af2da8116f84580fac6e35139bf235f156b070916232dbe3d117},{6f847af0f9858cfc3601eb4e740b4f1ee054bbb6321e3607fd0cc41651cce77a}
Solution
Create and deploy EncryptDecryptServlet with following code
package apps.experienceaem;
import com.adobe.granite.crypto.CryptoSupport;
import org.apache.commons.lang3.StringUtils;
import org.apache.felix.scr.annotations.*;
import org.apache.sling.api.SlingHttpServletRequest;
import org.apache.sling.api.SlingHttpServletResponse;
import org.apache.sling.api.servlets.SlingAllMethodsServlet;
import org.apache.sling.commons.json.io.JSONWriter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.servlet.ServletException;
import java.io.IOException;
@Component(label = "Experience AEM Encryption Decryption Servlet")
@Service
@Properties({
@Property(name = "sling.servlet.methods", value = { "GET" }, propertyPrivate = true),
@Property(name = "sling.servlet.paths", value = {
"/bin/experienceaem/encrypt",
"/bin/experienceaem/decrypt"
})
})
public class EncryptDecryptServlet extends SlingAllMethodsServlet {
private static final Logger LOG = LoggerFactory.getLogger(EncryptDecryptServlet.class);
@Reference
protected CryptoSupport cryptoSupport;
@Override
protected void doGet(final SlingHttpServletRequest request, final SlingHttpServletResponse response)
throws ServletException, IOException {
response.setContentType("application/json");
response.setCharacterEncoding("utf-8");
String words = request.getParameter("words");
String uri = request.getRequestURI();
if(StringUtils.isEmpty(words)){
throw new ServletException("Need words");
}
String[] wordsArr = words.split(",");
try{
JSONWriter jw = new JSONWriter(response.getWriter());
jw.object();
for(String word : wordsArr){
jw.key(word).value(uri.endsWith("encrypt") ? cryptoSupport.protect(word)
: cryptoSupport.unprotect(word));
}
jw.endObject();
}catch(Exception e){
LOG.error("Error encrypting/decrypting", e);
}
}
}