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java/org/apache/catalina/util/TLSUtil.java

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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ */
+package org.apache.catalina.util;
+
+import org.apache.catalina.Globals;
+import org.apache.tomcat.util.net.SSLSupport;
+
+public class TLSUtil {
+
+    /**
+     * Determines if the named request attribute is used to pass information
+     * about the TLS configuration of the connection to the application. Both
+     * the standard request attributes defined by the Servlet specification and
+     * Tomcat specific attributes are supported.
+     *
+     * @param name  The attribute name to test
+     *
+     * @return {@code true} if the attribute is used to pass TLS configuration
+     *         information, otherwise {@code false}
+     */
+    public static boolean isTLSRequestAttribute(String name) {
+        return Globals.CERTIFICATES_ATTR.equals(name) ||
+                Globals.CIPHER_SUITE_ATTR.equals(name) ||
+                Globals.KEY_SIZE_ATTR.equals(name)  ||
+                Globals.SSL_SESSION_ID_ATTR.equals(name) ||
+                Globals.SSL_SESSION_MGR_ATTR.equals(name) ||
+                SSLSupport.PROTOCOL_VERSION_KEY.equals(name);
+    }
+}