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Webapp HTTP proxy authentication

+1 vote
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We're developing webapp running on Tomcat 7. The apps use third-party components that we can't modify and those components connect to external sites using HTTP.

We have a policy of routing all outbound traffic through an authenticating HTTP proxy. This is a bit of problem for us since the Oracle Java 7 JVM doesn't support configuring proxy authentication on the JVM level (using e.g. system properties).

One possible workaround I could think of is to create a custom javaagent that would set a default java.net.Authenticator in premain() method. This approach appears to work in a command line program that uses HttpURLConnection, but are there any potential caveats to this method when used with webapps running in Tomcat? One shortcoming is that the same Authenticator would be used for all webapps in the JVM, but this is something we can live with.

posted Aug 16, 2013 by Luv Kumar

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1 Answer

+1 vote

How about a ServletContextListener?

http://docs.oracle.com/javaee/6/api/javax/servlet/ServletContextListener.html

or a LifecycleListener?

https://tomcat.apache.org/tomcat-7.0-doc/config/listeners.html

Either one should allow you to configure your proxy settings before your applications start.

answer Aug 17, 2013 by Dewang Chaudhary
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