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Add CsrfFilter.csrfRequestAttributeName

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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
This commit is contained in:
Rob Winch
2022-08-11 15:50:37 -05:00
parent 666f175225
commit 5b64526ba9
9 changed files with 110 additions and 1 deletions
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docs/modules/ROOT/pages/servlet/appendix/namespace/http.adoc
+4
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@@ -775,6 +775,10 @@ It is highly recommended to leave CSRF protection enabled.
The CsrfTokenRepository to use.
The default is `HttpSessionCsrfTokenRepository`.
[[nsa-csrf-request-attribute-name]]
* **request-attribute-name**
Optional attribute that specifies the request attribute name to set the `CsrfToken` on.
The default is `CsrfToken.parameterName`.
[[nsa-csrf-request-matcher-ref]]
* **request-matcher-ref**