diff --git a/src/main/java/com/commafeed/backend/feed/FeedEntryFilter.java b/src/main/java/com/commafeed/backend/feed/FeedEntryFilter.java
new file mode 100644
index 00000000..f9ca6a5e
--- /dev/null
+++ b/src/main/java/com/commafeed/backend/feed/FeedEntryFilter.java
@@ -0,0 +1,113 @@
+package com.commafeed.backend.feed;
+
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+
+import lombok.RequiredArgsConstructor;
+
+import org.apache.commons.jexl2.JexlContext;
+import org.apache.commons.jexl2.JexlEngine;
+import org.apache.commons.jexl2.JexlException;
+import org.apache.commons.jexl2.JexlInfo;
+import org.apache.commons.jexl2.MapContext;
+import org.apache.commons.jexl2.Script;
+import org.apache.commons.jexl2.introspection.JexlMethod;
+import org.apache.commons.jexl2.introspection.JexlPropertyGet;
+import org.apache.commons.jexl2.introspection.Uberspect;
+import org.apache.commons.jexl2.introspection.UberspectImpl;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.logging.LogFactory;
+import org.jsoup.Jsoup;
+
+import com.commafeed.backend.model.FeedEntry;
+
+@RequiredArgsConstructor
+public class FeedEntryFilter {
+
+ private static final JexlEngine ENGINE = initEngine();
+
+ private static JexlEngine initEngine() {
+ // classloader that prevents object creation
+ ClassLoader cl = new ClassLoader() {
+ @Override
+ public Class loadClass(String name) throws ClassNotFoundException {
+ return null;
+ }
+
+ @Override
+ protected Class loadClass(String name, boolean resolve) throws ClassNotFoundException {
+ return null;
+ }
+ };
+
+ // uberspect that prevents access to .class and .getClass()
+ Uberspect uberspect = new UberspectImpl(LogFactory.getLog(JexlEngine.class)) {
+ @Override
+ public JexlPropertyGet getPropertyGet(Object obj, Object identifier, JexlInfo info) {
+ if ("class".equals(identifier)) {
+ return null;
+ }
+ return super.getPropertyGet(obj, identifier, info);
+ }
+
+ @Override
+ public JexlMethod getMethod(Object obj, String method, Object[] args, JexlInfo info) {
+ if ("getClass".equals(method)) {
+ return null;
+ }
+ return super.getMethod(obj, method, args, info);
+ }
+ };
+
+ JexlEngine engine = new JexlEngine(uberspect, null, null, null);
+ engine.setStrict(true);
+ engine.setClassLoader(cl);
+ return engine;
+ }
+
+ private final String filter;
+
+ public boolean matchesEntry(FeedEntry entry) throws FeedEntryFilterException {
+ if (StringUtils.isBlank(filter)) {
+ return true;
+ }
+
+ Script script = null;
+ try {
+ script = ENGINE.createScript(filter);
+ } catch (JexlException e) {
+ throw new FeedEntryFilterException("Exception while parsing expression " + filter, e);
+ }
+
+ JexlContext context = new MapContext();
+ context.set("title", Jsoup.parse(entry.getContent().getTitle()).text().toLowerCase());
+ context.set("author", entry.getContent().getAuthor().toLowerCase());
+ context.set("content", Jsoup.parse(entry.getContent().getContent()).text().toLowerCase());
+ context.set("url", entry.getUrl().toLowerCase());
+
+ Callable