<%@ page import="org.jivesoftware.admin.AdminConsole,
                 org.jivesoftware.openfire.admin.AdminManager"
    errorPage="error.jsp"
%>
<%@ page import="org.jivesoftware.openfire.cluster.ClusterManager" %>
<%@ page import="org.jivesoftware.openfire.container.AdminConsolePlugin" %>
<%@ page import="org.xmpp.packet.JID" %>
<%@ page import="org.jivesoftware.openfire.auth.*" %>
<%@ page import="java.util.HashMap" %>
<%@ page import="java.util.Map" %>
<%@ page import="org.jivesoftware.util.*" %>
<%@ page import="org.jivesoftware.admin.LoginLimitManager" %>
<%@ page import="java.net.URL" %>
<%@ page import="java.lang.StringBuilder" %>

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %>

<%-- Define Administration Bean --%>
<jsp:useBean id="admin" class="org.jivesoftware.util.WebManager"  />
<% admin.init(request, response, session, application, out ); %>

<%!
    static String go(String url) {
        if (url == null) {
            return "index.jsp";
        }
        else {
        	if (url.startsWith("/")) {
        		return url;
        	}
        	try {
        		URL u = new URL(url);
	        	StringBuilder s = new StringBuilder();
	        	if (u.getPath().equals("")) {
	        		s.append("/");
	        	} else {
	        		s.append(u.getPath());
	        	}
	        	if (u.getQuery() != null) {
	        		s.append('?');
	        		s.append(u.getQuery());
	        	}
	        	if (u.getRef() != null) {
	        		s.append('#');
	        		s.append(u.getRef());
	        	}
	            return s.toString();
        	} catch(Exception e) {
        		return "index.jsp";
        	}
        }
    }
%>

<%-- Check if in setup mode --%>
<%
    if (admin.isSetupMode()) {
        response.sendRedirect("setup/index.jsp");
        return;
    }
%>

<% // get parameters
    String username = ParamUtils.getParameter(request, "username");

    String password = ParamUtils.getParameter(request, "password");
    String url = ParamUtils.getParameter(request, "url");
    url = org.jivesoftware.util.StringUtils.escapeHTMLTags(url);

    // SSO between cluster nodes
    String secret = ParamUtils.getParameter(request, "secret");
    String nodeID = ParamUtils.getParameter(request, "nodeID");
    String nonce = ParamUtils.getParameter(request, "nonce");

    // The user auth token:
    AuthToken authToken = null;

    // Check the request/response for a login token

    Map<String, String> errors = new HashMap<String, String>();

    Boolean login = ParamUtils.getBooleanParameter(request, "login");
    Cookie csrfCookie = CookieUtils.getCookie(request, "csrf");
    String csrfParam = ParamUtils.getParameter(request, "csrf");

    if (login) {
        if (csrfCookie == null || csrfParam == null || !csrfCookie.getValue().equals(csrfParam)) {
            login = false;
            errors.put("csrf", "CSRF Failure!");
        }
    }
    csrfParam = StringUtils.randomString(15);
    CookieUtils.setCookie(request, response, "csrf", csrfParam, -1);
    pageContext.setAttribute("csrf", csrfParam);

    if (login) {
        String loginUsername = username;
        if (loginUsername != null) {
            loginUsername = JID.escapeNode(loginUsername);
        }
        try {
            if (secret != null && nodeID != null) {
                if (StringUtils.hash(AdminConsolePlugin.secret).equals(secret) && ClusterManager.isClusterMember(Base64.decode(nodeID, Base64.URL_SAFE))) {
                    authToken = new AuthToken(loginUsername);
                }
                else {
                    throw new UnauthorizedException("SSO failed. Invalid secret or node ID was provided");
                }
            }
            else {
                // Check that a username was provided before trying to verify credentials
                if (loginUsername != null) {
                    if (LoginLimitManager.getInstance().hasHitConnectionLimit(loginUsername, request.getRemoteAddr())) {
                        throw new UnauthorizedException("User '" + loginUsername +"' or address '" + request.getRemoteAddr() + "' has his login attempt limit.");
                    }
                    if (!AdminManager.getInstance().isUserAdmin(loginUsername, true)) {
                        throw new UnauthorizedException("User '" + loginUsername + "' not allowed to login.");
                    }
                    authToken = AuthFactory.authenticate(loginUsername, password);
                }
                else {
                    errors.put("unauthorized", LocaleUtils.getLocalizedString("login.failed.unauthorized"));
                }
            }
            if (errors.isEmpty()) {
                LoginLimitManager.getInstance().recordSuccessfulAttempt(loginUsername, request.getRemoteAddr());
                session.setAttribute("jive.admin.authToken", authToken);
                response.sendRedirect(go(url));
                return;
            }
        }
        catch (ConnectionException ue) {
            Log.debug(ue);
            errors.put("connection", LocaleUtils.getLocalizedString("login.failed.connection"));
        }
        catch (InternalUnauthenticatedException ue) {
            Log.debug(ue);
            errors.put("authentication", LocaleUtils.getLocalizedString("login.failed.authentication"));
        }
        catch (UnauthorizedException ue) {
            Log.debug(ue);
            LoginLimitManager.getInstance().recordFailedAttempt(username, request.getRemoteAddr());
            // Provide a special message if the user provided something containing @
            if (username.contains("@")){
        	    errors.put("unauthorized", LocaleUtils.getLocalizedString("login.failed.lookslikeemail"));            	
            } else {
        	    errors.put("unauthorized", LocaleUtils.getLocalizedString("login.failed.unauthorized"));
            }
    	}
    }

    // Escape HTML tags in username to prevent cross-site scripting attacks. This
    // is necessary because we display the username in the page below.
    username = org.jivesoftware.util.StringUtils.escapeHTMLTags(username);

%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>
<head>
	<title><%= AdminConsole.getAppName() %> <fmt:message key="login.title" /></title>
	<script language="JavaScript" type="text/javascript">
		<!--
		// break out of frames
		if (self.parent.frames.length != 0) {
			self.parent.location=document.location;
		}
        function updateFields(el) {
            if (el.checked) {
                document.loginForm.username.disabled = true;
                document.loginForm.password.disabled = true;
            }
            else {
                document.loginForm.username.disabled = false;
                document.loginForm.password.disabled = false;
                document.loginForm.username.focus();
            }
        }
		//-->
	</script>
    <link rel="stylesheet" href="style/global.css" type="text/css">
    <link rel="stylesheet" href="style/login.css" type="text/css">
</head>

<body>

<form action="login.jsp" name="loginForm" method="post">

<%  if (url != null) { try { %>

    <input type="hidden" name="url" value="<%= StringUtils.escapeForXML(url) %>">

<%  } catch (Exception e) { Log.error(e); } } %>

<input type="hidden" name="login" value="true">
<input type="hidden" name="csrf" value="${csrf}">

<div align="center">
    <!-- BEGIN login box -->
    <div id="jive-loginBox">
        
        <div align="center" id="jive-loginTable">

            <span id="jive-login-header" style="background: transparent url(images/login_logo.gif) no-repeat left; padding: 29px 0 10px 205px;">
            <fmt:message key="admin.console" />
            </span>

            <div style="text-align: center; width: 380px;">
            <table cellpadding="0" cellspacing="0" border="0" align="center">
                <tr>
                    <td align="right" class="loginFormTable">

                        <table cellpadding="2" cellspacing="0" border="0">
                        <noscript>
                            <tr>
                                <td colspan="3">
                                    <table cellpadding="0" cellspacing="0" border="0">
                                    <tr valign="top">
                                        <td><img src="images/error-16x16.gif" width="16" height="16" border="0" alt="" vspace="2"></td>
                                        <td><div class="jive-error-text" style="padding-left:5px; color:#cc0000;"><fmt:message key="login.error" /></div></td>
                                    </tr>
                                    </table>
                                </td>
                            </tr>
                        </noscript>
                        <%  if (errors.size() > 0) { %>
                            <tr>
                                <td colspan="3">
                                    <table cellpadding="0" cellspacing="0" border="0">
                                        <% for (String error:errors.values()) { %>
                                    <tr valign="top">
                                        <td><img src="images/error-16x16.gif" width="16" height="16" border="0" alt="" vspace="2"></td>
                                        <td><div class="jive-error-text" style="padding-left:5px; color:#cc0000;"><%= error%></div></td>
                                    </tr>
                                        <% } %>
                                    </table>
                                </td>
                            </tr>
                        <%  } %>
                        <tr>
                            <td><input type="text" name="username" size="15" maxlength="50" id="u01" value="<%= (username != null ? StringUtils.removeXSSCharacters(username) : "") %>"></td>
                            <td><input type="password" name="password" size="15" maxlength="50" id="p01"></td>
                            <td align="center"><input type="submit" value="&nbsp; <fmt:message key="login.login" /> &nbsp;"></td>
                        </tr>
                        <tr valign="top">
                            <td class="jive-login-label"><label for="u01"><fmt:message key="login.username" /></label></td>
                            <td class="jive-login-label"><label for="p01"><fmt:message key="login.password" /></label></td>
                            <td>&nbsp;</td>
                        </tr>
                        </table>
                    </td>
                </tr>
                <tr>
                    <td align="right">
                        <div align="right" id="jive-loginVersion">
                        <%= AdminConsole.getAppName() %>, <fmt:message key="login.version" />: <%= AdminConsole.getVersionString() %>
                        </div>
                    </td>
                </tr>
            </table>
            </div>
        </div>

    </div>
    <!-- END login box -->
</div>

</form>

<script language="JavaScript" type="text/javascript">
<!--
    if (document.loginForm.username.value == '')  {
	    document.loginForm.username.focus();
    } else {
        document.loginForm.password.focus();
    }
//-->
</script>

</body>
</html>
