Examples with StackMachineCompiler org.nhindirect.policy.impl.machine.StackMachineCompiler used on opensource projects

Example 6 with StackMachineCompiler

use of org.nhindirect.policy.impl.machine.StackMachineCompiler in project nhin-d by DirectProject.

the class ValidatePanel method validateCert.

private void validateCert() {
    reportText.setText("");
    final File certFile = certFileField.getFile();
    final File policyFile = policyFileField.getFile();
    if (!certFile.exists()) {
        JOptionPane.showMessageDialog(this, "Certificate file does not exist or cannot be found.", "Invalid Cert File", JOptionPane.ERROR_MESSAGE);
        return;
    }
    InputStream policyInput = null;
    if (!feedMode) {
        if (!policyFile.exists()) {
            JOptionPane.showMessageDialog(this, "Policy file does not exist or cannot be found.", "Invalid Policy File", JOptionPane.ERROR_MESSAGE);
            return;
        }
        try {
            // load the policy as an input stream
            policyInput = FileUtils.openInputStream(policyFile);
        } catch (Exception e) {
            JOptionPane.showMessageDialog(this, "Could not load policy from file: " + e.getMessage(), "Invalid Policy File", JOptionPane.ERROR_MESSAGE);
            return;
        }
    } else {
        try {
            final int length = feed.getLength();
            policyInput = IOUtils.toInputStream(feed.getText(0, length));
        } catch (Exception e) {
            JOptionPane.showMessageDialog(this, "Could not load policy: " + e.getMessage(), "Invalid Policy", JOptionPane.ERROR_MESSAGE);
            return;
        }
    }
    // load the certificate
    X509Certificate cert = null;
    try {
        cert = (X509Certificate) CertificateFactory.getInstance("X.509").generateCertificate(FileUtils.openInputStream(certFile));
    } catch (Exception e) {
        JOptionPane.showMessageDialog(this, "Could not load certificate from file: " + e.getMessage(), "Invalid Cert File", JOptionPane.ERROR_MESSAGE);
        return;
    }
    final DateFormat dateFormat = new SimpleDateFormat("EEE, MMM d yyyy HH:mm:ss", Locale.getDefault());
    final StringBuilder reportTextBuilder = new StringBuilder("Validation run at " + dateFormat.format(Calendar.getInstance(Locale.getDefault()).getTime()) + "\r\n\r\n");
    try {
        final PolicyLexiconParser parser = (feedMode) ? PolicyLexiconParserFactory.getInstance(feedLexicon) : PolicyLexiconParserFactory.getInstance(PolicyLexicon.XML);
        final PolicyExpression policyExpression = parser.parse(policyInput);
        final org.nhindirect.policy.Compiler compiler = new StackMachineCompiler();
        compiler.setReportModeEnabled(true);
        final PolicyFilter filter = PolicyFilterFactory.getInstance(compiler);
        if (filter.isCompliant(cert, policyExpression) && compiler.getCompilationReport().isEmpty())
            reportTextBuilder.append("Certificate is compliant with the provided policy.");
        else {
            reportTextBuilder.append("Certificate is NOT compliant with the provided policy.\r\n\r\n");
            final Collection<String> report = compiler.getCompilationReport();
            if (!report.isEmpty()) {
                for (String reportEntry : report) reportTextBuilder.append(reportEntry + "\r\n");
            }
        }
    } catch (PolicyRequiredException e) {
        reportTextBuilder.append("Validation Successful\r\nCertificate is missing a required field\r\n\t" + e.getMessage());
    } catch (PolicyGrammarException e) {
        reportTextBuilder.append("Validation Failed\r\nError compiling policy\r\n\t" + e.getMessage());
    } catch (Exception e) {
        final ByteArrayOutputStream str = new ByteArrayOutputStream();
        final PrintStream printStr = new PrintStream(str);
        e.printStackTrace();
        e.printStackTrace(printStr);
        final String stackTrace = new String(str.toByteArray());
        reportTextBuilder.append("Validation Failed\r\nError compiling or proccessing policy\r\n\t" + e.getMessage() + "\r\n" + stackTrace);
    } finally {
        reportText.setText(reportTextBuilder.toString());
        IOUtils.closeQuietly(policyInput);
    }
}