package com.alibaba.jstorm.yarn.thrift;
import backtype.storm.Config;
import javax.security.auth.login.Configuration;
import javax.security.auth.login.AppConfigurationEntry;
import java.security.NoSuchAlgorithmException;
import java.security.URIParameter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.URI;
import java.util.Map;
public class AuthUtils {
private static final Logger LOG = LoggerFactory.getLogger(AuthUtils.class);
public static final String LOGIN_CONTEXT_SERVER = "StormServer";
public static final String LOGIN_CONTEXT_CLIENT = "StormClient";
public static final String SERVICE = "storm_thrift_server";
/**
* Construct a JAAS configuration object per storm configuration file
* @param storm_conf Storm configuration
* @return JAAS configuration object
*/
public static Configuration GetConfiguration(Map storm_conf) {
Configuration login_conf = null;
//find login file configuration from Storm configuration
String loginConfigurationFile = (String)storm_conf.get("java.security.auth.login.config");
if ((loginConfigurationFile != null) && (loginConfigurationFile.length()>0)) {
try {
URI config_uri = new File(loginConfigurationFile).toURI();
login_conf = Configuration.getInstance("JavaLoginConfig", new URIParameter(config_uri));
} catch (NoSuchAlgorithmException ex1) {
if (ex1.getCause() instanceof FileNotFoundException)
throw new RuntimeException("configuration file "+loginConfigurationFile+" could not be found");
else throw new RuntimeException(ex1);
} catch (Exception ex2) {
throw new RuntimeException(ex2);
}
}
return login_conf;
}
/**
* Construct a transport plugin per storm configuration
* @param conf storm configuration
* @return
*/
public static ITransportPlugin GetTransportPlugin(Map storm_conf, Configuration login_conf) {
ITransportPlugin transportPlugin = null;
try {
String transport_plugin_klassName = (String) storm_conf.get(Config.STORM_THRIFT_TRANSPORT_PLUGIN);
Class klass = Class.forName(transport_plugin_klassName);
transportPlugin = (ITransportPlugin)klass.newInstance();
transportPlugin.prepare(storm_conf, login_conf);
} catch(Exception e) {
throw new RuntimeException(e);
}
return transportPlugin;
}
public static String get(Configuration configuration, String section, String key) throws IOException {
AppConfigurationEntry configurationEntries[] = configuration.getAppConfigurationEntry(section);
if (configurationEntries == null) {
String errorMessage = "Could not find a '"+ section + "' entry in this configuration.";
throw new IOException(errorMessage);
}
for(AppConfigurationEntry entry: configurationEntries) {
Object val = entry.getOptions().get(key);
if (val != null)
return (String)val;
}
return null;
}
}