ChallengeResponseDaaCmd.java

package com.intel.mountwilson.trustagent.commands.daa;



import com.intel.mountwilson.common.CommandUtil;
import com.intel.mountwilson.common.ErrorCode;
import com.intel.mountwilson.common.ICommand;
import com.intel.mountwilson.common.TAException;
import com.intel.mountwilson.trustagent.data.TADataContext;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 *
 * @author jbuhacoff
 */
public class ChallengeResponseDaaCmd implements ICommand {

    Logger log = LoggerFactory.getLogger(getClass().getName());
    private TADataContext context;

    public ChallengeResponseDaaCmd(TADataContext context) {
        this.context = context;
    }

    @Override
    public void execute() throws TAException {
        try {
            try (FileOutputStream out = new FileOutputStream(new File(context.getDaaChallengeFileName()))) {
                IOUtils.copy(new ByteArrayInputStream(context.getDaaChallenge()), out);
            }
            // prepare response to challenge
            CommandUtil.runCommand(String.format("aikrespond %s %s %s",
                    CommandUtil.doubleQuoteEscapeShellArgument(context.getAikBlobFileName()),
                    CommandUtil.doubleQuoteEscapeShellArgument(context.getDaaChallengeFileName()),
                    CommandUtil.doubleQuoteEscapeShellArgument(context.getDaaResponseFileName()))); // safe; no arguments involved in this command line
            log.info( "Created response for DAA challenge");

            // read response and delete the response file
            context.setDaaResponse(CommandUtil.readfile(context.getDaaResponseFileName()));
            log.debug( "DAA Response read to memory - {}", context.getDaaResponseFileName());
            (new File(context.getDaaResponseFileName())).delete();
            log.debug("DAA Response file deleted - {}", context.getDaaResponseFileName());
            
        } catch (IOException | TAException e) {
            throw new TAException(ErrorCode.COMMAND_ERROR, "Error while preparing DAA challenge response: "+e.toString());
        }
    }

}