[GitHub] [drill] agozhiy commented on a change in pull request #1864: DRILL-7351: Added tokens to Web forms to prevent CSRF attacks

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agozhiy commented on a change in pull request #1864: DRILL-7351: Added tokens to Web forms to prevent CSRF attacks
URL: https://github.com/apache/drill/pull/1864#discussion_r339015110
 
 

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 File path: exec/java-exec/src/main/java/org/apache/drill/exec/server/rest/CsrfTokenInjectFilter.java
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 @@ -0,0 +1,61 @@
+/*
+ * 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.drill.exec.server.rest;
+
+import org.apache.commons.lang3.RandomStringUtils;
+
+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.HttpServletRequest;
+import javax.servlet.http.HttpSession;
+import javax.ws.rs.HttpMethod;
+import java.io.IOException;
+import java.security.SecureRandom;
+
+/**
+ * Generates and adds a CSRF token to a HTTP session. It is used to prevent CSRF attacks.
+ */
+public class CsrfTokenInjectFilter implements Filter {
 
 Review comment:
   Done.

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