SSLUtility

//2012-07-09  requires FileSystem
//TODO: Unit Tests
import java.io.File;
import java.io.IOException;

public class SSLUtility
{
    private String location;
    private String utility;

    SSLUtility() throws IOException
    {
        FileSystem fs = new FileSystem();
        location = "/usr/bin/";
        location = fs.convertFileSystemPath( location );
        utility = location + fs.getFileSeparator() + "openssl";
        if( fs.isWindows() )
        {       utility = utility + ".exe";
        }
    }

    private boolean isValid()
    {
        boolean isValid = false;
        File opensslFile = new File( utility );
        if( opensslFile.exists() )
        {   isValid = true;
        }
        return isValid;
    }

    //openssl.exe x509 -noout -modulus -in /var/lib/ssl/cert.crt | /usr/bin/openssl.exe md5
    //openssl rsa -noout -modulus -in server.key | openssl md5
    protected boolean isCertificateAndKeyValid( String certPathAndFilename , String keyPathAndFilename ) throws IOException
    {
        if( certPathAndFilename == null )
        {
            throw new IllegalArgumentException( "ERROR: certPathAndFilename cannot be null" );
        }
        if( certPathAndFilename.isEmpty() )
        {
            throw new IllegalArgumentException( "ERROR: certPathAndFilename cannot be empty" );
        }
        if( keyPathAndFilename == null )
        {
            throw new IllegalArgumentException( "ERROR: keyPathAndFilename cannot be null" );
        }
        if( keyPathAndFilename.isEmpty() )
        {
            throw new IllegalArgumentException( "ERROR: keyPathAndFilename cannot be empty" );
        }
        boolean result = false;
        String certResult = "";
        String keyResult = "";
        String command = "";
        FileSystem fs = new FileSystem();
        SSLUtility util = new SSLUtility();
        if( util.isValid() )
        {
            command = utility + " x509 -noout -modulus -in " + certPathAndFilename;
//          System.out.println( "DEBUG: " + command );
            certResult = fs.runSystemCommand( command );

            command = utility + " rsa -noout -modulus -in " + keyPathAndFilename;
//          System.out.println( "DEBUG: " + command );
            keyResult = fs.runSystemCommand( command );

            if( !keyResult.isEmpty() && !certResult.isEmpty() && keyResult.equals( certResult ) )
            {       result = true;
            }
        }
        return result;
    }

    protected String isCertificateAndIntermediateValid( String certPathAndFilename , String intermediatePathAndFilename ) throws IOException
    {
        String certResult = "";
        String command = "";
        FileSystem fs = new FileSystem();
        SSLUtility util = new SSLUtility();
        if( util.isValid() )
        {
            command = utility + " verify -purpose sslserver -CAfile " + intermediatePathAndFilename + " -verbose " + certPathAndFilename;
//          System.out.println( "DEBUG: " + command );
            certResult = fs.runSystemCommand( command );
        }
        return certResult;
    }

} //end class