From d7bb750475b6e0764e34f67fd27decb5ee697c8e Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Mon, 13 Jun 2016 14:06:31 +0200
Subject: Add dummy EntityResolver to prevent 1 minute freezes

---
 src/main/java/edu/kit/scc/dei/ecplean/ECPAuthenticatorBase.java | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/main/java/edu/kit/scc/dei/ecplean/ECPAuthenticatorBase.java b/src/main/java/edu/kit/scc/dei/ecplean/ECPAuthenticatorBase.java
index ff48afb..0607281 100644
--- a/src/main/java/edu/kit/scc/dei/ecplean/ECPAuthenticatorBase.java
+++ b/src/main/java/edu/kit/scc/dei/ecplean/ECPAuthenticatorBase.java
@@ -34,6 +34,7 @@ import org.apache.http.entity.StringEntity;
 import org.apache.http.impl.client.DefaultHttpClient;
 import org.apache.http.util.EntityUtils;
 import org.w3c.dom.Document;
+import org.xml.sax.EntityResolver;
 import org.xml.sax.InputSource;
 import org.xml.sax.SAXException;
 
@@ -124,6 +125,12 @@ public abstract class ECPAuthenticatorBase extends Observable {
 	protected Document buildDocumentFromString(String input)
 			throws IOException, ParserConfigurationException, SAXException {
 		DocumentBuilder builder = documentBuilderFactory.newDocumentBuilder();
+		builder.setEntityResolver(new EntityResolver() {
+			@Override
+			public InputSource resolveEntity(String publicId, String systemId) throws SAXException, IOException {
+				return new InputSource(new StringReader(""));
+			}
+		});
 		return builder.parse(new InputSource(new StringReader(input)));
 	}
 
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