1 files changed, 93 insertions, 0 deletions
diff --git a/BKULocal/src/main/java/at/gv/egiz/bku/local/webapp/MoccaContextListener.java b/BKULocal/src/main/java/at/gv/egiz/bku/local/webapp/MoccaContextListener.java
new file mode 100644
index 00000000..428190eb
--- /dev/null
+++ b/BKULocal/src/main/java/at/gv/egiz/bku/local/webapp/MoccaContextListener.java
@@ -0,0 +1,93 @@
+/*
+* Copyright 2009 Federal Chancellery Austria and
+* Graz University of Technology
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package at.gv.egiz.bku.local.webapp;
+
+import iaik.security.ecc.provider.ECCProvider;
+import iaik.security.provider.IAIK;
+import iaik.xml.crypto.XSecProvider;
+
+import java.security.Provider;
+import java.security.Security;
+
+import javax.servlet.ServletContextEvent;
+import javax.servlet.ServletContextListener;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class MoccaContextListener implements ServletContextListener {
+  
+  private Logger log = LoggerFactory.getLogger(MoccaContextListener.class);
+
+  @Override
+  public void contextDestroyed(ServletContextEvent sce) {
+  }
+
+  @Override
+  public void contextInitialized(ServletContextEvent sce) {
+    
+    log.info("Registering security providers ...");
+    
+    registerProviders();
+    
+    if (log.isDebugEnabled()) {
+      StringBuilder sb = new StringBuilder();
+      sb.append("Registered providers: ");
+      int i = 1;
+      for (Provider prov : Security.getProviders()) {
+        sb.append("\n" + (i++) + ". : " + prov);
+      }
+      log.debug(sb.toString());
+    }
+  }
+  
+  protected void registerProvider(Provider provider, int position) {
+    String name = provider.getName();
+    if (Security.getProvider(name) == null) {
+      // register IAIK provider at first position
+      try {
+        Security.insertProviderAt(provider, position);
+      } catch (SecurityException e) {
+        log.info("Failed to register required security Provider.", e);
+      }
+    } else {
+      log.info("Required security Provider {} already registered.", name);
+    }
+    
+  }
+  
+  protected void registerProviders() {
+
+    registerProvider(new IAIK(), 1);
+    registerProvider(new ECCProvider(false), 2);
+    
+    final String name = XSecProvider.NAME;
+    if (Security.getProvider(XSecProvider.NAME) == null) {
+      // register XML Security provider
+      try {
+        XSecProvider.addAsProvider(false);
+      } catch (SecurityException e) {
+        log.info("Failed to register required security Provider.", e);
+      }
+    } else {
+      log.info("Required security Provider {} already registered.", name);
+    }
+    
+  }
+
+}