NIFI-65:

- Adding methods to the AuthorityProvider to authorize the downloading of content.

nar-bundles/framework-bundle/framework/file-authorization-provider/src/main/java/org/apache/nifi/authorization/FileAuthorizationProvider.java

@@ -21,6 +21,8 @@ import java.io.IOException;
 import java.util.Collection;
 import java.util.EnumSet;
 import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
 import java.util.Set;
 import javax.xml.XMLConstants;
 import javax.xml.bind.JAXBContext;
@@ -492,6 +494,20 @@ public class FileAuthorizationProvider implements AuthorityProvider {
         }
     }
 
+    /**
+     * Grants access to download content regardless of FlowFile attributes.
+     * 
+     * @param dnChain
+     * @param attributes
+     * @return
+     * @throws UnknownIdentityException
+     * @throws AuthorityAccessException 
+     */
+    @Override
+    public DownloadAuthorization authorizeDownload(List<String> dnChain, Map<String, String> attributes) throws UnknownIdentityException, AuthorityAccessException {
+        return DownloadAuthorization.approved();
+    }
+
     /**
      * Locates the user with the specified DN.
      *