DMAAP-DR Header Injection fix

Signed-off-by: david.mcweeney <david.mcweeney@est.tech>
Change-Id: I5eb00945762064a5beeb5ce9c57e24243364c238
Issue-ID: DMAAP-1624

2 files changed, 18 insertions, 0 deletions

diff --git a/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/NodeServlet.java b/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/NodeServlet.java
index 0d030683..27fa5f3e 100644
--- a/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/NodeServlet.java
+++ b/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/NodeServlet.java
@@ -253,6 +253,13 @@ public class NodeServlet extends HttpServlet {
                 return;
             }
             fileid = fileid.substring(18);
+            if (req.getHeader("X-DMAAP-DR-PUBLISH-ID") != null && !req.getHeader("X-DMAAP-DR-PUBLISH-ID").matches("^[a-zA-Z0-9_]+$")) {
+                String reason = "Error validating header";
+                eelfLogger.error(reason);
+                resp.sendError(HttpServletResponse.SC_BAD_REQUEST, reason);
+                eelfLogger.info(EelfMsgs.EXIT);
+                return;
+            }
             pubid = req.getHeader("X-DMAAP-DR-PUBLISH-ID");
             user = "datartr";   // SP6 : Added usr as datartr to avoid null entries for internal routing
             targets = config.parseRouting(req.getHeader("X-DMAAP-DR-ROUTING"));
diff --git a/datarouter-node/src/test/java/org/onap/dmaap/datarouter/node/NodeServletTest.java b/datarouter-node/src/test/java/org/onap/dmaap/datarouter/node/NodeServletTest.java
index 4340b018..ad2fcf5d 100644
--- a/datarouter-node/src/test/java/org/onap/dmaap/datarouter/node/NodeServletTest.java
+++ b/datarouter-node/src/test/java/org/onap/dmaap/datarouter/node/NodeServletTest.java
@@ -205,6 +205,17 @@ public class NodeServletTest {
     }
 
     @Test
+    public void Given_Request_Is_HTTP_PUT_And_Internal_Publish_But_Invalid_Header_Then_Bad_Request_Response_Is_Generated() throws Exception {
+        when(request.getPathInfo()).thenReturn("/internal/publish/1/blah");
+        when(request.getRemoteAddr()).thenReturn("1.2.3.4");
+        when(config.isAnotherNode(anyString(), anyString())).thenReturn(true);
+        when(request.getHeader("X-DMAAP-DR-PUBLISH-ID")).thenReturn("User1+");
+        nodeServlet.doPut(request, response);
+        verify(response).sendError(eq(HttpServletResponse.SC_BAD_REQUEST), anyString());
+        verifyEnteringExitCalled(listAppender);
+    }
+
+    @Test
     public void Given_Request_Is_HTTP_PUT_On_Publish_And_Ingress_Node_Is_Provided_Then_Request_Is_Redirected() throws Exception {
         setNodeConfigManagerToAllowRedirectOnIngressNode();
         when(request.getPathInfo()).thenReturn("/publish/1/fileName");