org.mapfish.print.http.MfCredentialsProvider Maven / Gradle / Ivy

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package org.mapfish.print.http;

import com.google.common.collect.Lists;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.Credentials;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.impl.client.SystemDefaultCredentialsProvider;
import org.mapfish.print.config.Configuration;

import java.util.List;


/**
 * A Route planner that obtains credentials from the configuration that is currently in
 * {@link org.mapfish.print.http.MfClientHttpRequestFactoryImpl#CURRENT_CONFIGURATION}.
 * 
 * If authentication is not found in configuratin then it will fall back to
 * {@link org.apache.http.impl.client.SystemDefaultCredentialsProvider}
 * 
 * {@link MfClientHttpRequestFactoryImpl.Request} will set the correct configuration
 * before the request is executed so that correct proxies will be set.
 *
 * @author Jesse on 9/4/2014.
 */
public final class MfCredentialsProvider implements CredentialsProvider {
    private final CredentialsProvider fallback = new SystemDefaultCredentialsProvider();

    @Override
    public void setCredentials(final AuthScope authscope, final Credentials credentials) {
        throw new UnsupportedOperationException("Credentials should be set the default Java way or in the configuration yaml file.");
    }

    @Override
    public Credentials getCredentials(final AuthScope authscope) {

        Configuration config = MfClientHttpRequestFactoryImpl.getCurrentConfiguration();
        if (config != null) {
            List allCredentials = Lists.newArrayList(config.getCredentials());
            allCredentials.addAll(config.getProxies());

            for (HttpCredential credential : allCredentials) {
                final Credentials credentials = credential.toCredentials(authscope);
                if (credentials != null) {
                    return credentials;
                }
            }
        }
        return this.fallback.getCredentials(authscope);
    }

    @Override
    public void clear() {
        throw new UnsupportedOperationException("Credentials should be set the default Java way or in the configuration yaml file.");
    }
}