Github user alopresto commented on a diff in the pull request:
https://github.com/apache/nifi/pull/2047#discussion_r130748605
--- Diff:
nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-web/nifi-web-security/src/main/java/org/apache/nifi/web/security/oidc/OidcService.java
---
@@ -0,0 +1,207 @@
+/*
+ * 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.nifi.web.security.oidc;
+
+import com.google.common.cache.Cache;
+import com.google.common.cache.CacheBuilder;
+import com.nimbusds.oauth2.sdk.AuthorizationGrant;
+import com.nimbusds.oauth2.sdk.Scope;
+import com.nimbusds.oauth2.sdk.id.State;
+import org.apache.nifi.web.security.util.CacheKey;
+
+import java.io.IOException;
+import java.math.BigInteger;
+import java.net.URI;
+import java.security.SecureRandom;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeUnit;
+
+import static
org.apache.nifi.web.security.oidc.StandardOidcIdentityProvider.OPEN_ID_CONNECT_SUPPORT_IS_NOT_CONFIGURED;
+
+/**
+ * OidcService is a service for managing the OpenId Connect Authorization
flow.
+ */
+public class OidcService {
+
+ private OidcIdentityProvider identityProvider;
+ private Cache<CacheKey, State> stateLookupForPendingRequests; //
identifier from cookie -> state value
+ private Cache<CacheKey, String> jwtLookupForCompletedRequests; //
identifier from cookie -> jwt or identity (and generate jwt on retrieval)
+
+ /**
+ * Creates a new OtpService with an expiration of 5 minutes.
+ */
+ public OidcService(final OidcIdentityProvider identityProvider) {
+ this(identityProvider, 60, TimeUnit.SECONDS);
+ }
+
+ /**
+ * Creates a new OtpService.
+ *
+ * @param duration The expiration duration
--- End diff --
Looks like it is missing a Javadoc `param` for the identity provider.
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