package org.fcrepo.localservices.saxon;
import java.io.IOException;
import org.apache.http.HttpException;
import org.apache.http.HttpHost;
import org.apache.http.HttpRequest;
import org.apache.http.HttpRequestInterceptor;
import org.apache.http.auth.AuthScheme;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.AuthState;
import org.apache.http.auth.Credentials;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.client.protocol.ClientContext;
import org.apache.http.protocol.ExecutionContext;
import org.apache.http.protocol.HttpContext;
public class PreemptiveAuth implements HttpRequestInterceptor {
@Override
public void process(HttpRequest request, HttpContext context)
throws HttpException, IOException {
AuthState authState =
(AuthState) context
.getAttribute(ClientContext.TARGET_AUTH_STATE);
if (authState.getAuthScheme() != null) {
return;
}
AuthScheme authScheme =
(AuthScheme) context.getAttribute("preemptive-auth");
if (authScheme == null) {
return;
}
CredentialsProvider credsProvider =
(CredentialsProvider) context
.getAttribute(ClientContext.CREDS_PROVIDER);
HttpHost targetHost =
(HttpHost) context
.getAttribute(ExecutionContext.HTTP_TARGET_HOST);
Credentials creds =
credsProvider.getCredentials(new AuthScope(targetHost
.getHostName(), targetHost.getPort()));
if (creds == null) {
return;
}
authState.update(authScheme, creds);
}
}