Fix FeedServlet Vulnerabilities

Change-Id: Iba40e2e6825c019c1b3c648b617936c9ab40a666
Signed-off-by: Conor Ward <conor.ward@ericsson.com>
Issue-ID: DMAAP-775

1 files changed, 64 insertions, 37 deletions

diff --git a/datarouter-prov/src/main/java/org/onap/dmaap/datarouter/provisioning/FeedServlet.java b/datarouter-prov/src/main/java/org/onap/dmaap/datarouter/provisioning/FeedServlet.java
index 3f8929e7..d2452e7d 100644
--- a/datarouter-prov/src/main/java/org/onap/dmaap/datarouter/provisioning/FeedServlet.java
+++ b/datarouter-prov/src/main/java/org/onap/dmaap/datarouter/provisioning/FeedServlet.java
@@ -30,6 +30,7 @@ import java.io.InvalidObjectException;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
+import org.json.JSONException;
 import org.json.JSONObject;
 import org.onap.dmaap.datarouter.authz.AuthorizationResponse;
 import org.onap.dmaap.datarouter.provisioning.beans.EventLogRecord;
@@ -39,6 +40,8 @@ import org.onap.dmaap.datarouter.provisioning.eelf.EelfMsgs;
 import com.att.eelf.configuration.EELFLogger;
 import com.att.eelf.configuration.EELFManager;
 
+import static org.onap.dmaap.datarouter.provisioning.utils.HttpServletUtils.sendResponseError;
+
 /**
  * This servlet handles provisioning for the <feedURL> which is generated by the provisioning
  * server to handle a particular feed. It supports DELETE to mark the feed as deleted,
@@ -59,7 +62,7 @@ public class FeedServlet extends ProxyServlet {
      * document for details on how this method should be invoked.
      */
     @Override
-    public void doDelete(HttpServletRequest req, HttpServletResponse resp) throws IOException {
+    public void doDelete(HttpServletRequest req, HttpServletResponse resp) {
         setIpAndFqdnForEelf("doDelete");
         eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_FEEDID, req.getHeader(BEHALF_HEADER),getIdFromPath(req)+"");
         EventLogRecord elr = new EventLogRecord(req);
@@ -68,11 +71,15 @@ public class FeedServlet extends ProxyServlet {
             elr.setMessage(message);
             elr.setResult(HttpServletResponse.SC_FORBIDDEN);
             eventlogger.info(elr);
-            resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);
+            sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
             return;
         }
         if (isProxyServer()) {
-            super.doDelete(req, resp);
+            try {
+                super.doDelete(req, resp);
+            } catch (IOException ioe) {
+                eventlogger.error("IOException" + ioe.getMessage());
+            }
             return;
         }
         String bhdr = req.getHeader(BEHALF_HEADER);
@@ -81,7 +88,7 @@ public class FeedServlet extends ProxyServlet {
             elr.setMessage(message);
             elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
             eventlogger.info(elr);
-            resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
+            sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
             return;
         }
         int feedid = getIdFromPath(req);
@@ -90,7 +97,7 @@ public class FeedServlet extends ProxyServlet {
             elr.setMessage(message);
             elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
             eventlogger.info(elr);
-            resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
+            sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
             return;
         }
         Feed feed = Feed.getFeedById(feedid);
@@ -99,7 +106,7 @@ public class FeedServlet extends ProxyServlet {
             elr.setMessage(message);
             elr.setResult(HttpServletResponse.SC_NOT_FOUND);
             eventlogger.info(elr);
-            resp.sendError(HttpServletResponse.SC_NOT_FOUND, message);
+            sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, message, eventlogger);
             return;
         }
         // Check with the Authorizer
@@ -109,7 +116,7 @@ public class FeedServlet extends ProxyServlet {
             elr.setMessage(message);
             elr.setResult(HttpServletResponse.SC_FORBIDDEN);
             eventlogger.info(elr);
-            resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);
+            sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
             return;
         }
 
@@ -126,7 +133,7 @@ public class FeedServlet extends ProxyServlet {
             // Something went wrong with the UPDATE
             elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
             eventlogger.info(elr);
-            resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG);
+            sendResponseError(resp, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG, eventlogger);
         }
     }
     /**
@@ -135,7 +142,7 @@ public class FeedServlet extends ProxyServlet {
      * document for details on how this method should be invoked.
      */
     @Override
-    public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
+    public void doGet(HttpServletRequest req, HttpServletResponse resp) {
         setIpAndFqdnForEelf("doGet");
         eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_FEEDID, req.getHeader(BEHALF_HEADER),getIdFromPath(req)+"");
         EventLogRecord elr = new EventLogRecord(req);
@@ -144,11 +151,15 @@ public class FeedServlet extends ProxyServlet {
             elr.setMessage(message);
             elr.setResult(HttpServletResponse.SC_FORBIDDEN);
             eventlogger.info(elr);
-            resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);
+            sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
             return;
         }
         if (isProxyServer()) {
-            super.doGet(req, resp);
+            try {
+                super.doGet(req, resp);
+            } catch (IOException ioe) {
+                eventlogger.error("IOException" + ioe.getMessage());
+            }
             return;
         }
         String bhdr = req.getHeader(BEHALF_HEADER);
@@ -157,7 +168,7 @@ public class FeedServlet extends ProxyServlet {
             elr.setMessage(message);
             elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
             eventlogger.info(elr);
-            resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
+            sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
             return;
         }
         int feedid = getIdFromPath(req);
@@ -166,7 +177,7 @@ public class FeedServlet extends ProxyServlet {
             elr.setMessage(message);
             elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
             eventlogger.info(elr);
-            resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
+            sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
             return;
         }
         Feed feed = Feed.getFeedById(feedid);
@@ -175,7 +186,7 @@ public class FeedServlet extends ProxyServlet {
             elr.setMessage(message);
             elr.setResult(HttpServletResponse.SC_NOT_FOUND);
             eventlogger.info(elr);
-            resp.sendError(HttpServletResponse.SC_NOT_FOUND, message);
+            sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, message, eventlogger);
             return;
         }
         // Check with the Authorizer
@@ -185,7 +196,7 @@ public class FeedServlet extends ProxyServlet {
             elr.setMessage(message);
             elr.setResult(HttpServletResponse.SC_FORBIDDEN);
             eventlogger.info(elr);
-            resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);
+            sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
             return;
         }
 
@@ -194,7 +205,11 @@ public class FeedServlet extends ProxyServlet {
         eventlogger.info(elr);
         resp.setStatus(HttpServletResponse.SC_OK);
         resp.setContentType(FEEDFULL_CONTENT_TYPE);
-        resp.getOutputStream().print(feed.asJSONObject(true).toString());
+        try {
+            resp.getOutputStream().print(feed.asJSONObject(true).toString());
+        } catch (IOException ioe) {
+            eventlogger.error("IOException" + ioe.getMessage());
+        }
     }
     /**
      * PUT on the <feedURL> for a feed.
@@ -202,7 +217,7 @@ public class FeedServlet extends ProxyServlet {
      * document for details on how this method should be invoked.
      */
     @Override
-    public void doPut(HttpServletRequest req, HttpServletResponse resp) throws IOException {
+    public void doPut(HttpServletRequest req, HttpServletResponse resp) {
         setIpAndFqdnForEelf("doPut");
         eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_FEEDID, req.getHeader(BEHALF_HEADER),getIdFromPath(req)+"");
         EventLogRecord elr = new EventLogRecord(req);
@@ -211,11 +226,15 @@ public class FeedServlet extends ProxyServlet {
             elr.setMessage(message);
             elr.setResult(HttpServletResponse.SC_FORBIDDEN);
             eventlogger.info(elr);
-            resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);
+            sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
             return;
         }
         if (isProxyServer()) {
-            super.doPut(req, resp);
+            try {
+                super.doPut(req, resp);
+            } catch (IOException ioe) {
+                eventlogger.error("IOException" + ioe.getMessage());
+            }
             return;
         }
         String bhdr = req.getHeader(BEHALF_HEADER);
@@ -224,7 +243,7 @@ public class FeedServlet extends ProxyServlet {
             elr.setMessage(message);
             elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
             eventlogger.info(elr);
-            resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
+            sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
             return;
         }
         int feedid = getIdFromPath(req);
@@ -233,7 +252,7 @@ public class FeedServlet extends ProxyServlet {
             elr.setMessage(message);
             elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
             eventlogger.info(elr);
-            resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
+            sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
             return;
         }
         Feed oldFeed = Feed.getFeedById(feedid);
@@ -242,7 +261,7 @@ public class FeedServlet extends ProxyServlet {
             elr.setMessage(message);
             elr.setResult(HttpServletResponse.SC_NOT_FOUND);
             eventlogger.info(elr);
-            resp.sendError(HttpServletResponse.SC_NOT_FOUND, message);
+            sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, message, eventlogger);
             return;
         }
         // check content type is FEED_CONTENT_TYPE, version 1.0
@@ -253,7 +272,7 @@ public class FeedServlet extends ProxyServlet {
             elr.setMessage(message);
             elr.setResult(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
             eventlogger.info(elr);
-            resp.sendError(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE, message);
+            sendResponseError(resp, HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE, message, eventlogger);
             return;
         }
         JSONObject jo = getJSONfromInput(req);
@@ -262,7 +281,7 @@ public class FeedServlet extends ProxyServlet {
             elr.setMessage(message);
             elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
             eventlogger.info(elr);
-            resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
+            sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
             return;
         }
         if (intlogger.isDebugEnabled())
@@ -275,7 +294,7 @@ public class FeedServlet extends ProxyServlet {
             elr.setMessage(message);
             elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
             eventlogger.info(elr);
-            resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
+            sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
             return;
         }
         feed.setFeedid(feedid);
@@ -287,7 +306,7 @@ public class FeedServlet extends ProxyServlet {
             elr.setMessage(message);
             elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
             eventlogger.info(elr);
-            resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
+            sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
             return;
         }
         if (!oldFeed.getName().equals(feed.getName())) {
@@ -295,7 +314,7 @@ public class FeedServlet extends ProxyServlet {
             elr.setMessage(message);
             elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
             eventlogger.info(elr);
-            resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
+            sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
             return;
         }
         if (!oldFeed.getVersion().equals(feed.getVersion())) {
@@ -303,7 +322,7 @@ public class FeedServlet extends ProxyServlet {
             elr.setMessage(message);
             elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
             eventlogger.info(elr);
-            resp.sendError(HttpServletResponse.SC_BAD_REQUEST, message);
+            sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
             return;
         }
         // Check with the Authorizer
@@ -313,7 +332,7 @@ public class FeedServlet extends ProxyServlet {
             elr.setMessage(message);
             elr.setResult(HttpServletResponse.SC_FORBIDDEN);
             eventlogger.info(elr);
-            resp.sendError(HttpServletResponse.SC_FORBIDDEN, message);
+            sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
             return;
         }
 
@@ -324,15 +343,23 @@ public class FeedServlet extends ProxyServlet {
             eventlogger.info(elr);
             resp.setStatus(HttpServletResponse.SC_OK);
             resp.setContentType(FEEDFULL_CONTENT_TYPE);
-            resp.getOutputStream().print(feed.asLimitedJSONObject().toString());
+            try {
+                resp.getOutputStream().print(feed.asLimitedJSONObject().toString());
+            } catch (IOException ioe) {
+                eventlogger.error("IOException" + ioe.getMessage());
+            }
 
 
             /**Change Owner ship of Feed //Adding for group feature:Rally US708115*/
             if (jo.has("changeowner") && subjectgroup != null) {
-                Boolean changeowner = (Boolean) jo.get("changeowner");
-                if (changeowner != null && changeowner.equals(true)) {
-                    feed.setPublisher(req.getHeader(BEHALF_HEADER));
-                    feed.changeOwnerShip();
+                try {
+                    Boolean changeowner = (Boolean) jo.get("changeowner");
+                    if (changeowner != null && changeowner.equals(true)) {
+                        feed.setPublisher(req.getHeader(BEHALF_HEADER));
+                        feed.changeOwnerShip();
+                    }
+                } catch (JSONException je) {
+                    eventlogger.error("JSONException" + je.getMessage());
                 }
             }
             /***End of change ownership*/
@@ -342,14 +369,14 @@ public class FeedServlet extends ProxyServlet {
             // Something went wrong with the UPDATE
             elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
             eventlogger.info(elr);
-            resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG);
+            sendResponseError(resp, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG, eventlogger);
         }
     }
     /**
      * POST on the <feedURL> -- not supported.
      */
     @Override
-    public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
+    public void doPost(HttpServletRequest req, HttpServletResponse resp) {
         setIpAndFqdnForEelf("doPost");
         eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF, req.getHeader(BEHALF_HEADER));
         String message = "POST not allowed for the feedURL.";
@@ -357,6 +384,6 @@ public class FeedServlet extends ProxyServlet {
         elr.setMessage(message);
         elr.setResult(HttpServletResponse.SC_METHOD_NOT_ALLOWED);
         eventlogger.info(elr);
-        resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED, message);
+        sendResponseError(resp, HttpServletResponse.SC_METHOD_NOT_ALLOWED, message, eventlogger);
     }
 }