/*
 * This is eMonocot, a global online biodiversity information resource.
 *
 * Copyright © 2011–2015 The Board of Trustees of the Royal Botanic Gardens, Kew and The University of Oxford
 *
 * eMonocot is free software: you can redistribute it and/or modify it under the terms of the
 * GNU Affero General Public License as published by the Free Software Foundation, either version 3
 * of the License, or (at your option) any later version.
 *
 * eMonocot is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
 * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * The complete text of the GNU Affero General Public License is in the source repository as the file
 * ‘COPYING’.  It is also available from <http://www.gnu.org/licenses/>.
 */
package org.emonocot.portal.http;

import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.net.URI;

import org.apache.commons.codec.binary.Base64;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpMethod;
import org.springframework.http.client.ClientHttpRequest;
import org.springframework.http.client.SimpleClientHttpRequestFactory;

/**
 *
 * @author ben
 *
 */
public class StaticUsernameAndPasswordHttpClientFactory extends
SimpleClientHttpRequestFactory {

	/**
	 *
	 */
	private Logger logger = LoggerFactory.getLogger(StaticUsernameAndPasswordHttpClientFactory.class);

	/**
	 *
	 */
	private String username;

	/**
	 *
	 */
	private String password;

	/**
	 *
	 */
	private Integer proxyPort;

	/**
	 *
	 */
	private String proxyHost;

	/**
	 * @param newProxyPort the proxyPort to set
	 */
	public final void setProxyPort(final String newProxyPort) {
		try {
			this.proxyPort = Integer.decode(newProxyPort);
		} catch (NumberFormatException nfe) {
			logger.warn(nfe.getMessage());
		}
	}

	/**
	 * @param newProxyHost the proxyHost to set
	 */
	public final void setProxyHost(final String newProxyHost) {
		this.proxyHost = newProxyHost;
	}

	/**
	 * @param newUsername the username to set
	 */
	public final void setUsername(final String newUsername) {
		this.username = newUsername;
	}

	/**
	 * @param newPassword the password to set
	 */
	public final void setPassword(final String newPassword) {
		this.password = newPassword;
	}

	/**
	 * @param uri Set the uri
	 * @param httpMethod set the httpMethod
	 * @return a client http request object
	 * @throws IOException if there is a problem
	 */
	public final ClientHttpRequest createRequest(final URI uri,
			final HttpMethod httpMethod) throws IOException {
		if (proxyHost != null && proxyPort != null) {
			Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(
					proxyHost, proxyPort));
			super.setProxy(proxy);
		}
		ClientHttpRequest clientHttpRequest = super.createRequest(uri,
				httpMethod);
		String unencoded = username + ":" + password;
		String encoded = new String(Base64.encodeBase64(unencoded.getBytes()));
		clientHttpRequest.getHeaders().add("Authorization", "Basic " + encoded);

		return clientHttpRequest;
	}
}