Fix bug 'X-Frame-Options not configured: Lack of clickjacking protection'

Add new Filter (ContentSecurityPolicyHeaderFilter)

Signed-off-by: Vasyl Razinkov <vasyl.razinkov@est.tech>
Change-Id: Ic8151df64e4b95b3d59b44a5f74dd12210f55e87
Issue-ID: SDC-4192

3 files changed, 57 insertions, 0 deletions

diff --git a/common-app-api/src/main/java/org/openecomp/sdc/be/config/Configuration.java b/common-app-api/src/main/java/org/openecomp/sdc/be/config/Configuration.java
index 5a1eacdb58..da849f385c 100644
--- a/common-app-api/src/main/java/org/openecomp/sdc/be/config/Configuration.java
+++ b/common-app-api/src/main/java/org/openecomp/sdc/be/config/Configuration.java
@@ -147,6 +147,7 @@ public class Configuration extends BasicConfiguration {
     private ExternalCsarStore externalCsarStore;
     private CsarFormat csarFormat;
     private String componentInstanceCounterDelimiter;
+    private String permittedAncestors; // Space separated list of permitted ancestors
 
     @SuppressWarnings("unchecked")
     private <K, V> Map<K, V> safeGetCapsInsensitiveMap(Map<K, V> map) {
diff --git a/common-app-api/src/main/java/org/openecomp/sdc/common/filters/ContentSecurityPolicyHeaderFilterAbstract.java b/common-app-api/src/main/java/org/openecomp/sdc/common/filters/ContentSecurityPolicyHeaderFilterAbstract.java
new file mode 100644
index 0000000000..1281f27a11
--- /dev/null
+++ b/common-app-api/src/main/java/org/openecomp/sdc/common/filters/ContentSecurityPolicyHeaderFilterAbstract.java
@@ -0,0 +1,55 @@
+/*
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2022 Nordix Foundation. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdc.common.filters;
+
+import java.io.IOException;
+import javax.servlet.Filter;
+import javax.servlet.FilterChain;
+import javax.servlet.FilterConfig;
+import javax.servlet.ServletException;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletResponse;
+import javax.servlet.http.HttpServletResponse;
+import org.apache.commons.lang3.StringUtils;
+
+public abstract class ContentSecurityPolicyHeaderFilterAbstract implements Filter {
+
+    @Override
+    public void init(final FilterConfig filterConfig) throws ServletException {
+        // nothing to override
+    }
+
+    @Override
+    public void doFilter(final ServletRequest request, final ServletResponse response, final FilterChain chain) throws IOException, ServletException {
+        final HttpServletResponse httpServletResponse = (HttpServletResponse) response;
+        final String permittedAncestors = getPermittedAncestors();
+        httpServletResponse.setHeader("Content-Security-Policy",
+            "frame-ancestors 'self' " + (StringUtils.isNotBlank(permittedAncestors) ? permittedAncestors : ""));
+        chain.doFilter(request, httpServletResponse);
+    }
+
+    @Override
+    public void destroy() {
+        // nothing to override
+    }
+
+    protected abstract String getPermittedAncestors();
+}
diff --git a/common-app-api/src/main/java/org/openecomp/sdc/fe/config/Configuration.java b/common-app-api/src/main/java/org/openecomp/sdc/fe/config/Configuration.java
index 322c57ccd6..279f183324 100644
--- a/common-app-api/src/main/java/org/openecomp/sdc/fe/config/Configuration.java
+++ b/common-app-api/src/main/java/org/openecomp/sdc/fe/config/Configuration.java
@@ -75,6 +75,7 @@ public class Configuration extends BasicConfiguration {
     private List<List<String>> identificationHeaderFields;
     private List<List<String>> optionalHeaderFields;
     private List<String> forwardHeaderFields;
+    private String permittedAncestors; // Space separated list of permitted ancestors
 
     public Integer getHealthCheckSocketTimeoutInMs(int defaultVal) {
         return healthCheckSocketTimeoutInMs == null ? defaultVal : healthCheckSocketTimeoutInMs;