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Previously the CsrfToken was set on the request attribute with the name equal to CsrfToken.getParameterName(). This didn't really make a lot of sense because the CsrfToken.getParameterName() is intended to be used as the HTTP parameter that the CSRF token was provided. What's more is it meant that the CsrfToken needed to be read for every request to place it as an HttpServletRequestAttribute. This causes unnecessary HttpSession access which can decrease performance for applications. This commit allows setting CsrfFilter.csrfReqeustAttributeName to remove the dual purposing of CsrfToken.parameterName and to allow deferal of reading the CsrfToken to prevent unnecessary HttpSession access. Issue gh-11699
image::https://badges.gitter.im/Join%20Chat.svg[Gitter,link=https://gitter.im/spring-projects/spring-security?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge] image:https://github.com/spring-projects/spring-security/workflows/CI/badge.svg?branch=main["Build Status", link="https://github.com/spring-projects/spring-security/actions?query=workflow%3ACI"] image:https://img.shields.io/badge/Revved%20up%20by-Gradle%20Enterprise-06A0CE?logo=Gradle&labelColor=02303A["Revved up by Gradle Enterprise", link="https://ge.spring.io/scans?search.rootProjectNames=spring-security"] = Spring Security Spring Security provides security services for the https://docs.spring.io[Spring IO Platform]. Spring Security 6.0 requires Spring 6.0 as a minimum and also requires Java 17. For a detailed list of features and access to the latest release, please visit https://spring.io/projects[Spring projects]. == Code of Conduct Please see our https://github.com/spring-projects/.github/blob/main/CODE_OF_CONDUCT.md[code of conduct] == Downloading Artifacts See https://docs.spring.io/spring-security/site/docs/current/reference/html5/#getting[Getting Spring Security] for how to obtain Spring Security. == Documentation Be sure to read the https://docs.spring.io/spring-security/site/docs/current/reference/htmlsingle/[Spring Security Reference]. Extensive JavaDoc for the Spring Security code is also available in the https://docs.spring.io/spring-security/site/docs/current/api/[Spring Security API Documentation]. == Quick Start See https://docs.spring.io/spring-security/site/docs/current/reference/html5/#servlet-hello[Hello Spring Security] to get started with a "Hello, World" application. == Building from Source Spring Security uses a https://gradle.org[Gradle]-based build system. In the instructions below, https://vimeo.com/34436402[`./gradlew`] is invoked from the root of the source tree and serves as a cross-platform, self-contained bootstrap mechanism for the build. === Prerequisites https://help.github.com/set-up-git-redirect[Git] and the https://www.oracle.com/technetwork/java/javase/downloads[JDK17 build]. Be sure that your `JAVA_HOME` environment variable points to the `jdk-17` folder extracted from the JDK download. === Check out sources [indent=0] ---- git clone git@github.com:spring-projects/spring-security.git ---- === Install all spring-\* jars into your local Maven cache [indent=0] ---- ./gradlew publishToMavenLocal ---- === Compile and test; build all jars, distribution zips, and docs [indent=0] ---- ./gradlew build ---- Discover more commands with `./gradlew tasks`. See also the https://github.com/spring-projects/spring-framework/wiki/Gradle-build-and-release-FAQ[Gradle build and release FAQ]. == Getting Support Check out the https://stackoverflow.com/questions/tagged/spring-security[Spring Security tags on Stack Overflow]. https://spring.io/services[Commercial support] is available too. == Contributing https://help.github.com/articles/creating-a-pull-request[Pull requests] are welcome; see the https://github.com/spring-projects/spring-security/blob/main/CONTRIBUTING.adoc[contributor guidelines] for details. == License Spring Security is Open Source software released under the https://www.apache.org/licenses/LICENSE-2.0.html[Apache 2.0 license].