XWIKI-21211: Upgrade the standalone packaging to Jetty 12.x

* Enable usage of // in URL paths
* See XWIKI-22428

Author: vmassol

xwiki-platform-tools/xwiki-platform-tool-jetty/xwiki-platform-tool-jetty-resources/src/main/resources/jetty/etc/jetty.xml

@@ -87,7 +87,7 @@
       <!-- TODO: Put back <Property name="jetty.httpConfig.uriCompliance" default="DEFAULT"/> instead of
            RFC3986,AMBIGUOUS_PATH_ENCODING when we understand how to pass that value from xwiki.ini again.
            See https://github.com/jetty/jetty.project/issues/12162 -->
-      <Set name="uriCompliance"><Call class="org.eclipse.jetty.http.UriCompliance" name="from"><Arg>RFC3986,AMBIGUOUS_PATH_ENCODING</Arg></Call></Set>
+      <Set name="uriCompliance"><Call class="org.eclipse.jetty.http.UriCompliance" name="from"><Arg>RFC3986,AMBIGUOUS_PATH_ENCODING,AMBIGUOUS_EMPTY_SEGMENT</Arg></Call></Set>
       <Set name="requestCookieCompliance"><Call class="org.eclipse.jetty.http.CookieCompliance" name="from"><Arg><Property name="jetty.httpConfig.requestCookieCompliance" default="RFC6265"/></Arg></Call></Set>
       <Set name="responseCookieCompliance"><Call class="org.eclipse.jetty.http.CookieCompliance" name="from"><Arg><Property name="jetty.httpConfig.responseCookieCompliance" default="RFC6265"/></Arg></Call></Set>
       <Set name="relativeRedirectAllowed"><Property name="jetty.httpConfig.relativeRedirectAllowed" default="false"/></Set>

xwiki-platform-tools/xwiki-platform-tool-jetty/xwiki-platform-tool-jetty-resources/src/main/resources/start.d/xwiki.ini

@@ -28,6 +28,8 @@ jetty.deploy.extractWars=false
 ## Jetty has added a protection in URLs so that encoded characters such as % are prohibited by default. Since
 ## XWiki uses them, we need to configure Jetty to allow for it. See
 ##   https://www.eclipse.org/jetty/documentation/jetty-10/operations-guide/index.html#og-module-server-compliance
-## Since Jetty 12, using a URI compliance of just RFC3986 is no longer enough, we also need to add
-## AMBIGUOUS_PATH_ENCODING. Remove this when https://jira.xwiki.org/browse/XWIKI-22422 is fixed.
-jetty.httpConfig.uriCompliance=RFC3986,AMBIGUOUS_PATH_ENCODING
+## Since Jetty 12, using a URI compliance of just RFC3986 is no longer enough, we also need to relax some extra
+## rules.
+##   Remove AMBIGUOUS_PATH_ENCODING when https://jira.xwiki.org/browse/XWIKI-22422 is fixed.
+##   Remove AMBIGUOUS_EMPTY_SEGMENT when https://jira.xwiki.org/browse/XWIKI-22428 is fixed.
+jetty.httpConfig.uriCompliance=RFC3986,AMBIGUOUS_PATH_ENCODING,AMBIGUOUS_EMPTY_SEGMENT