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Improve docs on forwarded headers

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Issue: SPR-16660
This commit is contained in:
Rossen Stoyanchev
2018-03-29 16:26:58 -04:00
parent e8c656d2bc
commit de4da5ea4e
8 changed files with 64 additions and 21 deletions
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10
spring-webmvc/src/main/java/org/springframework/web/servlet/config/annotation/CorsRegistration.java
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@@ -1,5 +1,5 @@
/*
* Copyright 2002-2016 the original author or authors.
* Copyright 2002-2018 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -16,7 +16,6 @@
package org.springframework.web.servlet.config.annotation;
import java.util.ArrayList;
import java.util.Arrays;
import org.springframework.web.cors.CorsConfiguration;
@@ -60,6 +59,13 @@ public class CorsRegistration {
* Set the origins to allow, e.g. {@code "http://domain1.com"}.
* <p>The special value {@code "*"} allows all domains.
* <p>By default, all origins are allowed.
* <p><strong>Note:</strong> CORS checks use values from "Forwarded"
* (<a href="http://tools.ietf.org/html/rfc7239">RFC 7239</a>),
* "X-Forwarded-Host", "X-Forwarded-Port", and "X-Forwarded-Proto" headers,
* if present, in order to reflect the client-originated address.
* Consider using the {@code ForwardedHeaderFilter} in order to choose from a
* central place whether to extract and use, or to discard such headers.
* See the Spring Framework reference for more on this filter.
*/
public CorsRegistration allowedOrigins(String... origins) {
this.config.setAllowedOrigins(Arrays.asList(origins));

15
spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/annotation/MvcUriComponentsBuilder.java
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@@ -82,14 +82,13 @@ import org.springframework.web.util.UriComponentsBuilder;
* {@link #relativeTo(org.springframework.web.util.UriComponentsBuilder)}.
* </ul>
*
* <p><strong>Note:</strong> This class extracts and uses values from the headers
* "Forwarded" (<a href="http://tools.ietf.org/html/rfc7239">RFC 7239</a>),
* or "X-Forwarded-Host", "X-Forwarded-Port", and "X-Forwarded-Proto" if
* "Forwarded" is not found, in order to reflect the client-originated protocol
* and address. As an alternative consider using the
* {@link org.springframework.web.filter.ForwardedHeaderFilter} to have such
* headers extracted once and removed, or removed only (without being used).
* See the reference for further information including security considerations.
* <p><strong>Note:</strong> This class uses values from "Forwarded"
* (<a href="http://tools.ietf.org/html/rfc7239">RFC 7239</a>),
* "X-Forwarded-Host", "X-Forwarded-Port", and "X-Forwarded-Proto" headers,
* if present, in order to reflect the client-originated protocol and address.
* Consider using the {@code ForwardedHeaderFilter} in order to choose from a
* central place whether to extract and use, or to discard such headers.
* See the Spring Framework reference for more on this filter.
*
* @author Oliver Gierke
* @author Rossen Stoyanchev

15
spring-webmvc/src/main/java/org/springframework/web/servlet/support/ServletUriComponentsBuilder.java
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@@ -35,14 +35,13 @@ import org.springframework.web.util.UrlPathHelper;
* UriComponentsBuilder with additional static factory methods to create links
* based on the current HttpServletRequest.
*
* <p><strong>Note:</strong> This class extracts and uses values from the headers
* "Forwarded" (<a href="http://tools.ietf.org/html/rfc7239">RFC 7239</a>),
* or "X-Forwarded-Host", "X-Forwarded-Port", and "X-Forwarded-Proto" if
* "Forwarded" is not found, in order to reflect the client-originated protocol
* and address. As an alternative consider using the
* {@link org.springframework.web.filter.ForwardedHeaderFilter} to have such
* headers extracted once and removed, or removed only (without being used).
* See the reference for further information including security considerations.
* <p><strong>Note:</strong> This class uses values from "Forwarded"
* (<a href="http://tools.ietf.org/html/rfc7239">RFC 7239</a>),
* "X-Forwarded-Host", "X-Forwarded-Port", and "X-Forwarded-Proto" headers,
* if present, in order to reflect the client-originated protocol and address.
* Consider using the {@code ForwardedHeaderFilter} in order to choose from a
* central place whether to extract and use, or to discard such headers.
* See the Spring Framework reference for more on this filter.
*
* @author Rossen Stoyanchev
* @since 3.1

6
spring-webmvc/src/main/resources/org/springframework/web/servlet/config/spring-mvc-4.3.xsd
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@@ -1323,6 +1323,12 @@
<xsd:documentation><![CDATA[
Comma-separated list of origins to allow, e.g. "http://domain1.com, http://domain2.com".
The special value "*" allows all domains (default).
Note that CORS checks use values from "Forwarded" (RFC 7239), "X-Forwarded-Host",
"X-Forwarded-Port", and "X-Forwarded-Proto" headers, if present, in order to reflect
the client-originated address. Consider using the ForwardedHeaderFilter in order to
choose from a central place whether to extract and use such headers, or whether to
discard them. See the Spring Framework reference for more on this filter.
]]></xsd:documentation>
</xsd:annotation>
</xsd:attribute>