requesthelper.java

JAVA做的J2EE下CA认证系统 基于EJB开发

                break;
            }
        }

        out.println();
    } // ieCertFormat

    /**
     * Reads template and inserts cert to send back to IE for installation of cert
     *
     * @param b64cert cert to be installed in IE-client
     * @param out utput stream to send to
     * @param sc serveltcontext
     * @param responseTemplate path to responseTemplate
     * @param classid replace
     *
     * @throws Exception on error
     */
    public static void sendNewCertToIEClient(byte[] b64cert, OutputStream out, ServletContext sc,
        String responseTemplate, String classid) throws Exception {
        if (b64cert.length == 0) {
            log.error("0 length certificate can not be sent to IE client!");
            return;
        }

        PrintStream ps = new PrintStream(out);
        BufferedReader br = new BufferedReader(new InputStreamReader(sc.getResourceAsStream(
                        responseTemplate)));

        while (true) {
            String line = br.readLine();

            if (line == null) {
                break;
            }

            if (line.indexOf("cert =") < 0) {
                ps.println(CLASSID.matcher(line).replaceFirst(classid));
            } else {
                RequestHelper.ieCertFormat(b64cert, ps);
            }
        }

        ps.close();
        log.debug("Sent reply to IE client");
        log.debug(new String(b64cert));
    } // sendNewCertToIEClient

    /**
     * Sends back cert to NS/Mozilla for installation of cert
     *
     * @param certs DER encoded certificates to be installed in browser
     * @param out output stream to send to
     *
     * @throws Exception on error
     */
    public static void sendNewCertToNSClient(byte[] certs, HttpServletResponse out)
        throws Exception {
        if (certs.length == 0) {
            log.error("0 length certificate can not be sent to NS client!");
            return;
        }

        // Set content-type to what NS wants
        out.setContentType("application/x-x509-user-cert");
        out.setContentLength(certs.length);

        // Print the certificate
        out.getOutputStream().write(certs);
        log.debug("Sent reply to NS client");
        log.debug(new String(Base64.encode(certs)));
    } // sendNewCertToNSClient

    /**
     * Sends back certificate as binary file (application/octet-stream)
     *
     * @param b64cert base64 encoded certificate to be returned
     * @param out output stream to send to
     * @param beginKey, String contaitning key information, ie BEGIN_CERTIFICATE_WITH_NL or BEGIN_PKCS7_WITH_NL
     * @param beginKey, String contaitning key information, ie END_CERTIFICATE_WITH_NL or END_PKCS7_WITH_NL
     * @throws Exception on error
     */
    public static void sendNewB64Cert(byte[] b64cert, HttpServletResponse out, String beginKey, String endKey)
        throws Exception {
        if (b64cert.length == 0) {
            log.error("0 length certificate can not be sent to client!");
            return;
        }

        // We must remove cache headers for IE
        ServletUtils.removeCacheHeaders(out);

        // Set content-type to general file
        out.setContentType("application/octet-stream");        
        out.setHeader("Content-disposition", "filename=cert.pem");

        out.setContentLength(b64cert.length + beginKey.length() + endKey.length());

        // Write the certificate
        ServletOutputStream os = out.getOutputStream();
        os.write(beginKey.getBytes());
        os.write(b64cert);
        os.write(endKey.getBytes());
        out.flushBuffer();
        log.debug("Sent reply to client");
        log.debug(new String(b64cert));
    } // sendNewB64Cert

    /**
     * Sends back CA-certificate as binary file (application/x-x509-ca-cert)
     *
     * @param cert DER encoded certificate to be returned
     * @param out output stream to send to
     *
     * @throws Exception on error
     */
    public static void sendNewX509CaCert(byte[] cert, HttpServletResponse out)
        throws Exception {
        // Set content-type to CA-cert
        sendBinaryBytes(cert, out, "application/x-x509-ca-cert");
    } // sendNewX509CaCert

    /**
     * Sends back a number of bytes
     *
     * @param bytes DER encoded certificate to be returned
     * @param out output stream to send to
     * @param contentType mime type to send back bytes as
     *
     * @throws Exception on error
     */
    public static void sendBinaryBytes(byte[] bytes, HttpServletResponse out, String contentType)
        throws Exception {
        if (bytes.length == 0) {
            log.error("0 length can not be sent to client!");
            return;
        }

        // Set content-type to general file
        out.setContentType(contentType);
        out.setContentLength(bytes.length);

        // Write the certificate
        ServletOutputStream os = out.getOutputStream();
        os.write(bytes);
        out.flushBuffer();
        log.debug("Sent " + bytes.length + " bytes to client");
    } // sendBinaryBytes
    
    public static PKCS10RequestMessage genPKCS10RequestMessageFromPEM(byte[] b64Encoded){ 
	  byte[] buffer = null;
	  try {
		// A real PKCS10 PEM request
		String beginKey = BEGIN_CERTIFICATE_REQUEST;
		String endKey = END_CERTIFICATE_REQUEST;
		buffer = FileTools.getBytesFromPEM(b64Encoded, beginKey, endKey);
      } catch (IOException e) {	 	
		try {
			// Keytool PKCS10 PEM request
			String beginKey = "-----BEGIN NEW CERTIFICATE REQUEST-----";
			String endKey = "-----END NEW CERTIFICATE REQUEST-----";
			buffer = FileTools.getBytesFromPEM(b64Encoded, beginKey, endKey);
		} catch (IOException ioe) {
			// IE PKCS10 Base64 coded request
			buffer = Base64.decode(b64Encoded);
        }
      } 
	  if (buffer == null) {
		return null;
	  }	  
	  return new PKCS10RequestMessage(buffer);
    } // PKCS10RequestMessage

    /** Returns the default content encoding used in JSPs. Reads the env-entry contentEncoding from web.xml.
     * 
     * @return The content encoding set in the webs env-entry java:comp/env/contentEncoding, or ISO-8859-1 (default), never returns null.
     */
    public static String getDefaultContentEncoding() {
        String ret = null;
        try {
            ret = ServiceLocator.getInstance().getString("java:comp/env/contentEncoding");            
        } catch (ServiceLocatorException e) {
            log.debug("Can not find any default content encoding, using hard default ISO-8859-1.");
            ret = "ISO-8859-1";            
        }
        if (ret == null) {
            log.debug("Can not find any default content encoding, using hard default ISO-8859-1.");
            ret = "ISO-8859-1";
        } 
        return ret;
    }
    
}