4 Replies Latest reply on Jul 26, 2013 3:17 AM by mposolda

How to add filter in a portal extension

tim.drisdelle Jul 25, 2013 1:05 PM

I have successfully created a custom portal extension "my-portal-extension", and I want to add a filter that will process on <url-mapping>/*</url-mapping>

The MyFilter.jar is places in my-portal-extension/WEB-INF/lib/

While I can see the filter is initialized (via log messages), it doesn't get called when I visit the portal:

http://myserver.com:8080/portal/

It does get into the doFilter method if I visit:

http://myserver.com:8080/my-portal-extension/

But obviously this isn't intended. Clearly, the Tomcat context for the portal extension (which is deployed as a "separate" webapp my-portal-extension.war), uses its own context (ie. /my-portal-extension) and will not filter for a different context (ie. /portal), which is what I actually want.

How do I add a filter to my portal extension?

1. Re: How to add filter in a portal extension

nscavell Jul 25, 2013 2:05 PM (in response to tim.drisdelle)

/google "gatein filter" -> results[0] = https://community.jboss.org/thread/172870
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2. Re: How to add filter in a portal extension

tim.drisdelle Jul 25, 2013 2:07 PM (in response to nscavell)

Wow - I guess my Google chops are in need of tuning (too verbose!)

Thanks for the thread, I'll go check it out!
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3. Re: How to add filter in a portal extension

tim.drisdelle Jul 25, 2013 6:44 PM (in response to nscavell)

Alright...

I've followed the direction on the referenced thread and I think I've got everything working.

However, I'm not able to read in my init-params from the configuration in web-inf-extension-configuration.xml

These params used to be in my web.xml file, and now I've got them like this:
<init-params>
        <properties-param>
          <name>authfilter.properties</name>
          <property name="APP_ID" value="1234"/>
          <property name="APP_ID_KEY" value="aaabbbcccddd111222333444"/>
          <property name="APP_ADMIN_PASSWORD" value="abcde12345"/>
        </properties-param>

        <object-param>
          <name>Auth Filter Definition</name>
          <object type="org.exoplatform.web.filter.FilterDefinition">
            
            <field name="filter">
              <object type="com.mycompany.authfilter.AuthFilter"/>
            </field>
            
            
            <field name="patterns">
              <collection type="java.util.ArrayList" item-type="java.lang.String">
                <value>
                  <string>/.*</string>
                </value>
              </collection>
            </field>
          </object>
        </object-param>
      </init-params>

I'm not sure I've done this correctly, and when my filter tries filterConfig.getInitParameter("APP_ID") it throws NPE.

Am I supposed to use a different <name> in the <properties-param> ?

I just noticed that the interface org.exoplatform.web.filter.Filter does not include methods for init and destroy, which I was using to populate my FilterConfig (and contained the properties).
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4. Re: How to add filter in a portal extension

mposolda Jul 26, 2013 3:17 AM (in response to tim.drisdelle)

Hi,

I think that you need to create constructor of your filter, which will just accept InitParams as the argument and read parameters here. Something like

{code}
public MyFilter implements Filter
{

public MyFilter(InitParams params)
{
params.getPropertiesParam('APP_ID');
// Read other parameters here
}

...
}
{code}
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