package epsos.ccd.gnomon.configmanager;

import java.io.IOException;
import java.security.cert.CertificateException;
import java.util.Enumeration;
import java.util.Hashtable;

import javax.xml.parsers.ParserConfigurationException;

import org.apache.log4j.Logger;
import org.w3c.dom.Document;
import org.xml.sax.SAXException;

/**
 * 
 * Synchronizes the countries tsl content to the configuration parameters Read the list of countries from the configuration manager parameter name = ncp.countries For each country reads again the
 * configuration manager to find the property tsl.location.[country_code] It verifies the tsl file It parses the tsl file and extracts the endpoint wse and writes them to the configuration manager
 * Finally it exports all the xertificates and add them to the truststor
 * 
 * @author Kostas Karkaletsis
 * @author Organization: Gnomon
 * @author mail:k.karkaletsis@gnomon.com.gr
 * @version 1.0, 2010, 30 Jun
 * 
 */

public class TSLSynchronizer {
	static Logger logger = Logger.getLogger(TSLSynchronizer.class);

	public static void main(String[] args) throws ParserConfigurationException, SAXException, IOException,
			CertificateException {
		ConfigurationManagerService cms = ConfigurationManagerService.getInstance();
		String ncp = cms.getProperty("ncp.country");
		String ncpemail = cms.getProperty("ncp.email");

		if (ncp.equals("")) {
			ncp = "GR-12";
			cms.updateProperty("ncp.country", ncp);
		}
		if (ncpemail.equals("")) {
			ncpemail = "ncpgr@epsos.gr";
			cms.updateProperty("ncp.email", ncpemail);
		}

		// read the country codes of the epSOS countries from the NCP configuration
		String[] countries = getCountriesList(cms).split(",");
		Hashtable serviceNames = null;
		String url = "";
		// Loop through countries list
		for (int i = 0; i < countries.length; i++) {
			// read the country TSL from a known location
			logger.info(countries[i] + ": Reading tsl file");
			url = cms.getProperty("tsl.location." + countries[i]);
			logger.info("URL: " + url);
			// verify the authenticity and integrity of tsl
			Document doc = TSLUtils.createDomFromURLUsingHttps(url);
			// boolean verifyTSL = TSLUtils.VerifyTSL(doc);
			boolean verifyTSL = true;
			if (verifyTSL) {
				logger.info(countries[i] + ": The tsl file has verified");
				// Extract the service WSEs from the TSL and write them to the NCP configuration
				logger.info(countries[i] + ": Extracting service Endpoints");
				serviceNames = TSLUtils.getServicesFromTSL(url);
				if (serviceNames.size() > 0) {
					Enumeration names;
					names = serviceNames.keys();
					String str = "";
					while (names.hasMoreElements()) {
						str = (String) names.nextElement();
						// Correct the typo of PatientIdentification Service
						String str_corrected = "";
						if (str.equals("PatientIdenitificationService")) {
							str_corrected = "PatientIdentificationService";
						} else {
							str_corrected = str;
						}
						if (!serviceNames.get(str).toString().equals("")) {
							cms.setServiceWSE(countries[i], str_corrected.trim(), serviceNames.get(str).toString()
									.trim());
						}
						logger.debug(countries[i] + ": Extracting " + str.trim() + " - "
								+ serviceNames.get(str).toString().trim());
					}
					// Extract the certificates from services, ipsec and ssl
					// Services
					logger.info(countries[i] + ": Extracting certificates");
					TSLUtils.exportSSLFromTSL(url, countries[i]);
					TSLUtils.exportNCPSignFromTSL(url, countries[i]);
					sendAudit(ncp, ncpemail, "Central Cervices", "centralservices@epsos.eu");
				} else {
					logger.info(countries[i] + ": Problem extracting service names");
				}
			} else {
				logger.error("ERROR Validating TSL");
			}

		}

	}

	/**
	 * Reads the NCP Configuration and returns the list of ncp countries
	 * 
	 * @param cms
	 *            the instance of configuration manager
	 * @return the comma seperated list of ncp countries
	 */
	private static String getCountriesList(ConfigurationManagerService cms) {
		return cms.getProperty("ncp.countries");
	}

	private static void sendAudit(String sc_fullname, String sc_email, String sp_fullname, String sp_email) {

	}

}