Tim,
On 3/21/22 13:51, Scott,Tim wrote:
Hi all,
I’ve been trying to get this to work for a bit without any luck.
What I’ve arrived at, in my main Tomcat web.xml, is:
<web-app xmlns=http://xmlns.jcp.org/xml/ns/javaee
<http://xmlns.jcp.org/xml/ns/javaee>
xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance
<http://www.w3.org/2001/XMLSchema-instance>
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd
<http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd>"
version="4.0">
<filter>
<filter-name>Remote Address Filter</filter-name>
<filter-class>org.apache.catalina.filters.RemoteAddrFilter</filter-class>
<init-param>
<param-name>allow</param-name>
<param-value>127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>Remote Address Filter</filter-name>
<url-pattern>/sru/*</url-pattern>
</filter-mapping>
This is more-or-less a copy/paste from the documentation at
https://tomcat.apache.org/tomcat-9.0-doc/config/filter.html#Remote_Address_Filter
<https://tomcat.apache.org/tomcat-9.0-doc/config/filter.html#Remote_Address_Filter>,
but the url-pattern is presenting me some problems.
There are (for various business reasons) planned to be two applications
on this Tomcat – one at “/sru/…” and one not.
The one at “/sru” needs to have a filter applied to stop it being
accessed from non-whitelisted sources. The other application is public.
Or, I need to do some development work to integrate with our corporate
authentication mechanism – for requests that have already been
authenticated and are arriving from another, internal, server. To me,
that seems like a waste of time.
If I adjust the url-pattern to:
<url-pattern>/*</url-pattern>
… then all access from other clients for both applications get an
http/403 response. No surprise, there.
If I make the pattern:
<url-pattern>/sru/*</url-pattern>
(or some variations thereof – “sru”, “/sru”, “/sru/”,
“/sru*”, …)
… then both applications are equally accessible from other clients.
Is what I’m trying to do possible?
I’m using Tomcat 9.0.54.
If it should work – can anyone spot what I’ve missed?
Thanks,
Tim
What is the context path of your web application? The filter should
ignore the context-path and only look at URLs relative to that context-path.
So if you your context-path is /sru then you really just want to look at
/* and not /sru*
The other question is "which web.xml are you editing"? If you are
editing the one in CATALINA_BASE/conf/web.xml then that's the wrong one
as it applies to all web applications... but again the URLs will all be
relative to their individual context-paths.
-chris
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