Following symbolic link in Grails 3

Question

In Grails 2.x, to allow following symbolic links, we can add following in the scripts/_Events.groovy:

eventConfigureTomcat = { tomcat ->
    def ctx = tomcat.host.findChild("")
    ctx.allowLinking = true     // Follow soft links
}

How can we achieve the same in Grails 3? I've tried creating the same script file in src/main/scripts directory in Grails 3 but didn't help.

Edit:

I also tried adding following line in Bootstrap.groovy:

Holders.getServletContext().allowLinking = true

GitHub issue #10045

The servlet context is passed into `BootStrap.init{}` as an argument. Is that too late to accomplish what you need? — Jeff Scott Brown, Jul 08 '16 at 15:25
No @JeffScottBrown that didn't work. It is too late to configure tomcat. — Shashank Agrawal, Jul 08 '16 at 16:47

score 1 · Accepted Answer · answered Jul 28 '16 at 13:43

Finally, I've figured out the solution for following symbolic link in Grails 3 with the help of examples provided by graemerocher.

You just need to add the following to your ./grails-app/init/<package>/Application.groovy:

@Bean
EmbeddedServletContainerFactory containerFactory() {
    TomcatEmbeddedServletContainerFactory containerFactory = new TomcatEmbeddedServletContainerFactory()

    containerFactory.addContextCustomizers(new TomcatContextCustomizer() {
        @Override
        void customize(Context context) {
            StandardRoot root = new StandardRoot(context)
            root.setAllowLinking(true)
            context.setResources(root)
        }
    });

    return containerFactory
}

Packages to import:

import org.apache.catalina.Context
import org.apache.catalina.webresources.StandardRoot
import org.springframework.boot.context.embedded.EmbeddedServletContainerFactory
import org.springframework.boot.context.embedded.tomcat.TomcatContextCustomizer
import org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory
import org.springframework.context.annotation.Bean

Source: https://github.com/grails/grails-core/issues/10045#issuecomment-235896128 — Eduardo Cuomo, Sep 20 '16 at 14:05

Following symbolic link in Grails 3

1 Answers1

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