Page Comparison

String ticket = CmsRequestUtil.getNotEmptyParameter(getRequest(), PARAM_TICKET);
        	CmsModule ldapModule = OpenCms.getModuleManager().getModule("cn.langhua.opencms.ldap");
        	if (ldapModule != null) {
        		String casUrl = ldapModule.getParameter("CasUrl", "https://localhost:8443/cas");
        		String loginUri = ldapModule.getParameter("CasLoginUri", "/login");
        		String validateUri = ldapModule.getParameter("CasValidateUri", "/validate");
        		String serviceUrl = getRequest().getRequestURL().toString();
        		String url = URLEncoder.encode(serviceUrl, "UTF-8");
        		if (ticket == null) {
            		getResponse().sendRedirect(casUrl + loginUri + "?service=" + url);
            	} else {
            		// there's a ticket, we should validate the ticket
            		URL validateURL = new URL(casUrl + validateUri + "?" + PARAM_TICKET + "=" + ticket + "&" + PARAM_SERVICE + "=" + url);
            		URLConnection conn = validateURL.openConnection();
        			InputStreamReader result = new InputStreamReader(conn.getInputStream(), "UTF-8");
        			BufferedReader reader = new BufferedReader(result);
        			String oneline = reader.readLine();
        			if (CmsStringUtil.isNotEmpty(oneline) && oneline.equals("yes")) {
    					// the ticket is true
    					m_username = reader.readLine().trim();
    					m_password = "cas_login";
    					m_actionLogin = "true";
            			reader.close();
            			result.close();
       				} else {
       					// the ticket is false, forward the request to cas login page
            			reader.close();
            			result.close();
                		getResponse().sendRedirect(casUrl + loginUri + "?service=" + url);
        			}
            	        }
        	}