Recently Sandeep
Nair developed a portlet
that commits the blog entries and other contents in a Twitter
account. This portlet is configurable by groupId and it can manage
several Twitter accounts by Group (Organization,Community etc..). The
portlet use the jtweet
library to interact with api.tweeter.com.
We are testing this portlet and we find a problem if Liferay is
behind a proxy. The reason is that jtweet uses the
java.net.Connection instead of the HttpImpl provided by Liferay,
which is clear because jtweet is a general purpose library. So, if
you want to use this cool portlet you have to configure the JVM for
the proxy and set the user credentials.
http.proxyHost=proxy.server.com
http.nonProxyHosts=localhost
http.proxyPort=8080
To set the user and password, you have to register an
Authenticator, and set it as default.
package net.zylk.proxy.auth;
import
java.net.Authenticator;
import
java.net.PasswordAuthentication;
import
com.liferay.portal.kernel.events.ActionException;
import com.liferay.portal.kernel.events.SimpleAction;
public class StartupAction extends SimpleAction{
@Override
public void run(String[] arg0) throws
ActionException {
// TODO Auto-generated method
stub
Authenticator.setDefault(new
SimpleAuthenticator("PROXY_USER","PROXY_PASSWORD"));
}
public class SimpleAuthenticator extends Authenticator
{
private String username, password;
public SimpleAuthenticator(String username, String
password) {
this.username = username;
this.password = password;
}
protected PasswordAuthentication
getPasswordAuthentication() {
return new
PasswordAuthentication(username, password.toCharArray());
}
}
}
On liferay startup:
global.startup.events=com.liferay.portal.events.GlobalStartupAction, net.zylk.proxy.auth.StartupAction
It is also useful for the RSS portlet behind proxy with
authentication. I don’t know if this is the best way to do this but is
one way.
