Fix weak crypto issue in restconf adaptor

Added new capability to disable host name verification on a per-connection
basis in restapi-call-node and restconf adaptors, and use custom
hostname verifier to handle IP addresses and localhost as exception
cases.

Issue-ID: CCSDK-3196
Signed-off-by: Dan Timoney <dtimoney@att.com>
Change-Id: I379f3b5093b5ff46433a33821127670747e8efa6

3 files changed, 7 insertions, 4 deletions

diff --git a/plugins/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/Parameters.java b/plugins/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/Parameters.java
index 9b542af91..6e84a9c02 100755
--- a/plugins/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/Parameters.java
+++ b/plugins/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/Parameters.java
@@ -53,4 +53,5 @@ public class Parameters {
     public boolean multipartFormData;
     public String multipartFile;
     public String targetEntity;
+    public boolean disableHostVerification;
 }
diff --git a/plugins/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/RestapiCallNode.java b/plugins/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/RestapiCallNode.java
index f1aa2b266..e3192562d 100755
--- a/plugins/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/RestapiCallNode.java
+++ b/plugins/restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/RestapiCallNode.java
@@ -238,6 +238,7 @@ public class RestapiCallNode implements SvcLogicJavaPlugin {
         p.multipartFormData = valueOf(parseParam(paramMap, "multipartFormData", false, "false"));
         p.multipartFile = parseParam(paramMap, "multipartFile", false, null);
         p.targetEntity = parseParam(paramMap, "targetEntity", false, null);
+        p.disableHostVerification = valueOf(parseParam(paramMap, "disableHostVerification", false, "true"));
         return p;
     }
 
@@ -925,7 +926,7 @@ public class RestapiCallNode implements SvcLogicJavaPlugin {
 
     protected SSLContext createSSLContext(Parameters p) {
         try (FileInputStream in = new FileInputStream(p.keyStoreFileName)) {
-            HttpsURLConnection.setDefaultHostnameVerifier(new AcceptIpAddressHostNameVerifier());
+            HttpsURLConnection.setDefaultHostnameVerifier(new AcceptIpAddressHostNameVerifier(p.disableHostVerification));
             KeyManagerFactory kmf = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
             KeyStore ks = KeyStore.getInstance("PKCS12");
             char[] pwd = p.keyStorePassword.toCharArray();
diff --git a/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfdiscovery/RestconfDiscoveryNode.java b/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfdiscovery/RestconfDiscoveryNode.java
index 5b47cf5b6..d6b93f744 100644
--- a/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfdiscovery/RestconfDiscoveryNode.java
+++ b/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/restconfdiscovery/RestconfDiscoveryNode.java
@@ -24,6 +24,7 @@ import org.glassfish.jersey.media.sse.EventSource;
 import org.glassfish.jersey.media.sse.SseFeature;
 import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
 import org.onap.ccsdk.sli.core.sli.SvcLogicException;
+import org.onap.ccsdk.sli.core.utils.common.AcceptIpAddressHostNameVerifier;
 import org.onap.ccsdk.sli.plugins.restapicall.Parameters;
 import org.onap.ccsdk.sli.plugins.restapicall.RestapiCallNode;
 import org.onap.ccsdk.sli.plugins.restconfapicall.RestconfApiCallNode;
@@ -142,7 +143,7 @@ public class RestconfDiscoveryNode implements SvcLogicDiscoveryPlugin {
             try {
                 RestapiCallNode restapi = restconfApiCallNode.getRestapiCallNode();
                 p = RestapiCallNode.getParameters(paramMap, new Parameters());
-                Client client =  ignoreSslClient().register(SseFeature.class);
+                Client client =  ignoreSslClient(p.disableHostVerification).register(SseFeature.class);
                 target = restapi.addAuthType(client, p).target(url);
             } catch (SvcLogicException e) {
                 log.error("Exception occured!", e);
@@ -170,7 +171,7 @@ public class RestconfDiscoveryNode implements SvcLogicDiscoveryPlugin {
         // Note: Sonar complains about host name verification being 
         // disabled here.  This is necessary to handle devices using self-signed
         // certificates (where CA would be unknown) - so we are leaving this code as is.
-        private Client ignoreSslClient() {
+        private Client ignoreSslClient(boolean disableHostVerification) {
             SSLContext sslcontext = null;
 
             try {
@@ -193,7 +194,7 @@ public class RestconfDiscoveryNode implements SvcLogicDiscoveryPlugin {
                 throw new IllegalStateException(e);
             }
 
-            return ClientBuilder.newBuilder().sslContext(sslcontext).hostnameVerifier((s1, s2) -> true).build();
+            return ClientBuilder.newBuilder().sslContext(sslcontext).hostnameVerifier(new AcceptIpAddressHostNameVerifier(disableHostVerification)).build();
         }
     }