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java/org/apache/tomcat/util/http/SameSiteCookies.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.tomcat.util.http;
+
+import org.apache.tomcat.util.res.StringManager;
+
+public enum SameSiteCookies {
+
+    /**
+     * Don't set the SameSite cookie attribute.
+     */
+    UNSET("Unset"),
+
+    /**
+     * Cookie is always sent in cross-site requests.
+     */
+    NONE("None"),
+
+    /**
+     * Cookie is only sent on same-site requests and cross-site top level navigation GET requests
+     */
+    LAX("Lax"),
+
+    /**
+     * Prevents the cookie from being sent by the browser in all cross-site requests
+     */
+    STRICT("Strict");
+
+    private static final StringManager sm = StringManager.getManager(SameSiteCookies.class);
+
+    private final String value;
+
+    SameSiteCookies(String value) {
+        this.value = value;
+    }
+
+    public String getValue() {
+        return value;
+    }
+
+    public static SameSiteCookies fromString(String value) {
+        for (SameSiteCookies sameSiteCookies : SameSiteCookies.values()) {
+            if (sameSiteCookies.getValue().equalsIgnoreCase(value)) {
+                return sameSiteCookies;
+            }
+        }
+
+        throw new IllegalStateException(sm.getString("cookies.invalidSameSiteCookies", value));
+    }
+}