How to rewrite a RewriteValve for Undertow / JBoss 7.2 EAP?

You can create a rewrite filter in the Undertow subsystem, and then reference it in the server host within the configuration file (standalone.xml or domain.xml - depending on the mode in which you start the application server).

I can think of two options, which might help you:

1. Using the JBoss Application Server Client (should be placed in path/to/jboss-7.2/bin/)

   • Creating the rewrite filter with the custom name redirect-http-to-https:

   ./jboss-cli.sh --connect --command="/subsystem=undertow/configuration=filter/rewrite=redirect-http-to-https:add(redirect="true",target="https://%{LOCAL_SERVER_NAME}%{REQUEST_URL}")"
   

   • Using/referencing the filter redirect-http-to-https:

   ./jboss-cli.sh --connect --command="/subsystem=undertow/server=default-server/host=default-host/filter-ref=redirect-http-to-https:add(predicate="equals(%p,80)")"
   

2. Manually editing the respective config file (e.g. standalone.xml)

<subsystem xmlns="urn:jboss:domain:undertow:11.0" default-server="default-server" [...]>
            <buffer-cache name="default"/>
    <server name="default-server">
        [...]
        <host name="default-host" alias="localhost">
            <filter-ref name="redirect-http-to-https" predicate="equals(%p,80)"/>
        </host>
    </server>
    [...]
    <filters>
        <rewrite name="redirect-http-to-https" target="https://%{LOCAL_SERVER_NAME}%{REQUEST_URL}" redirect="true"/>
    </filters>
</subsystem>

Note: For the Undertow exchange attributes (e.g. LOCAL_SERVER_NAME) refer to Undertow documentation. Further, the part predicate="equals(%p,80)" in the filter-refchecks the requested port (%p -> just another Undertow exchange attribute) and if it equals to 80, then it triggers our redirect filter redirect-http-to-https - you can change the port 80 as per your need.