Fix GroupServlet Vulnerabilities

Change-Id: I51c0546dcdbbc059db277744218f2b00a2001556
Signed-off-by: Conor Ward <conor.ward@ericsson.com>
Issue-ID: DMAAP-775

1 files changed, 58 insertions, 39 deletions

diff --git a/datarouter-prov/src/main/java/org/onap/dmaap/datarouter/provisioning/GroupServlet.java b/datarouter-prov/src/main/java/org/onap/dmaap/datarouter/provisioning/GroupServlet.java
index 8537ff4b..96a9924f 100644
--- a/datarouter-prov/src/main/java/org/onap/dmaap/datarouter/provisioning/GroupServlet.java
+++ b/datarouter-prov/src/main/java/org/onap/dmaap/datarouter/provisioning/GroupServlet.java
@@ -26,18 +26,15 @@ package org.onap.dmaap.datarouter.provisioning;
 
 import java.io.IOException;
 import java.io.InvalidObjectException;
-import java.util.Collection;
 
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
 import org.json.JSONObject;
-import org.onap.dmaap.datarouter.authz.AuthorizationResponse;
-import org.onap.dmaap.datarouter.provisioning.BaseServlet.ContentHeader;
 import org.onap.dmaap.datarouter.provisioning.beans.EventLogRecord;
 import org.onap.dmaap.datarouter.provisioning.beans.Group;
-import org.onap.dmaap.datarouter.provisioning.beans.Subscription;
-import org.onap.dmaap.datarouter.provisioning.utils.JSONUtilities;
+
+import static org.onap.dmaap.datarouter.provisioning.utils.HttpServletUtils.sendResponseError;
 
 /**
  * This servlet handles provisioning for the <groups> which is generated by the provisioning
@@ -53,13 +50,13 @@ public class GroupServlet extends ProxyServlet {
      * DELETE on the <GRUPS> -- not supported.
      */
     @Override
-    public void doDelete(HttpServletRequest req, HttpServletResponse resp) throws IOException {
+    public void doDelete(HttpServletRequest req, HttpServletResponse resp) {
         String message = "DELETE not allowed for the GROUPS.";
         EventLogRecord elr = new EventLogRecord(req);
         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);
     }
     /**
      * GET on the the list of groups to a feed/sub.
@@ -67,18 +64,22 @@ public class GroupServlet 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) {
         EventLogRecord elr = new EventLogRecord(req);
         String message = isAuthorizedForProvisioning(req);
         if (message != null) {
             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);
@@ -87,7 +88,7 @@ public class GroupServlet 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;
         }
 
@@ -122,7 +123,7 @@ public class GroupServlet 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;
         }
 
@@ -132,7 +133,11 @@ public class GroupServlet extends ProxyServlet {
         eventlogger.info(elr);
         resp.setStatus(HttpServletResponse.SC_OK);
         resp.setContentType(GROUPFULL_CONTENT_TYPE);
-        resp.getOutputStream().print(gup.asJSONObject().toString());
+        try {
+            resp.getOutputStream().print(gup.asJSONObject().toString());
+        } catch (IOException ioe) {
+            eventlogger.error("IOException" + ioe.getMessage());
+        }
 
         // Display a list of Groups
         /*Collection<Group> list = Group.getGroupById(groupid);
@@ -149,18 +154,22 @@ public class GroupServlet extends ProxyServlet {
      * PUT on the &lt;GROUPS&gt; -- not supported.
      */
     @Override
-    public void doPut(HttpServletRequest req, HttpServletResponse resp) throws IOException {
+    public void doPut(HttpServletRequest req, HttpServletResponse resp) {
         EventLogRecord elr = new EventLogRecord(req);
         String message = isAuthorizedForProvisioning(req);
         if (message != null) {
             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);
@@ -169,7 +178,7 @@ public class GroupServlet 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 groupid = getIdFromPath(req);
@@ -178,7 +187,7 @@ public class GroupServlet 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;
         }
         Group oldgup = Group.getGroupById(groupid);
@@ -187,7 +196,7 @@ public class GroupServlet 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
@@ -208,7 +217,7 @@ public class GroupServlet 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);
@@ -217,12 +226,12 @@ public class GroupServlet 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())
             intlogger.debug(jo.toString());
-        Group gup = null;
+        Group gup;
         try {
             gup = new Group(jo);
         } catch (InvalidObjectException e) {
@@ -230,17 +239,15 @@ public class GroupServlet 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;
         }
         gup.setGroupid(oldgup.getGroupid());
-
-
         Group gb2 = Group.getGroupMatching(gup, oldgup.getGroupid());
         if (gb2 != null) {
             eventlogger.warn("PROV0011 Creating a duplicate Group: "+gup.getName());
             elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
-            resp.sendError(HttpServletResponse.SC_BAD_REQUEST, "Duplicate Group:"+gup.getName());
+            sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, "Duplicate Group:"+gup.getName(), eventlogger);
             return;
         }
 
@@ -251,13 +258,17 @@ public class GroupServlet extends ProxyServlet {
             eventlogger.info(elr);
             resp.setStatus(HttpServletResponse.SC_OK);
             resp.setContentType(GROUPFULL_CONTENT_TYPE);
-            resp.getOutputStream().print(gup.asJSONObject().toString());
+            try {
+                resp.getOutputStream().print(gup.asJSONObject().toString());
+            } catch (IOException ioe) {
+                eventlogger.error("IOException" + ioe.getMessage());
+            }
             provisioningDataChanged();
         } else {
             // 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);
         }
     }
     /**
@@ -266,18 +277,22 @@ public class GroupServlet extends ProxyServlet {
      * document for details on how this method should be invoked.
      */
     @Override
-    public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
+    public void doPost(HttpServletRequest req, HttpServletResponse resp) {
         EventLogRecord elr = new EventLogRecord(req);
         String message = isAuthorizedForProvisioning(req);
         if (message != null) {
             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.doPost(req, resp);
+            try {
+                super.doPost(req, resp);
+            } catch (IOException ioe) {
+                eventlogger.error("IOException" + ioe.getMessage());
+            }
             return;
         }
         String bhdr = req.getHeader(BEHALF_HEADER);
@@ -286,7 +301,7 @@ public class GroupServlet 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);
@@ -327,7 +342,7 @@ public class GroupServlet 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);
@@ -336,13 +351,13 @@ public class GroupServlet 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())
             intlogger.debug(jo.toString());
 
-        Group gup = null;
+        Group gup;
         try {
             gup = new Group(jo);
         } catch (InvalidObjectException e) {
@@ -350,7 +365,7 @@ public class GroupServlet 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;
         }
         //gup.setFeedid(feedid);
@@ -361,7 +376,7 @@ public class GroupServlet extends ProxyServlet {
         if (gb2 != null) {
             eventlogger.warn("PROV0011 Creating a duplicate Group: "+gup.getName());
             elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
-            resp.sendError(HttpServletResponse.SC_BAD_REQUEST, "Duplicate Group:"+gup.getName());
+            sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, "Duplicate Group:"+gup.getName(), eventlogger);
             return;
         }
 
@@ -373,13 +388,17 @@ public class GroupServlet extends ProxyServlet {
             eventlogger.info(elr);
             resp.setStatus(HttpServletResponse.SC_CREATED);
             resp.setContentType(GROUPFULL_CONTENT_TYPE);
-            resp.getOutputStream().print(gup.asJSONObject().toString());
+            try {
+                resp.getOutputStream().print(gup.asJSONObject().toString());
+            } catch (IOException ioe) {
+                eventlogger.error("IOException" + ioe.getMessage());
+            }
             provisioningDataChanged();
         } else {
             // Something went wrong with the INSERT
             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);
         }
     }
 }