package backtype.storm.security.auth;
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;
}
}