// $Id$




// Default values
var swekey_integration_params =
{
    //strings
    'logo_gray_str'     : 'No swekey plugged',
    'logo_orange_str'   : 'Authenticating...',
    'logo_red_str'      : 'Swekey authentication failed',
    'logo_green_str'    : 'Swekey plugged and authentified',
    'logo_green_str'    : 'Swekey plugged and validated',
    'attach_ask_str'	: "A swekey authentication key has been detected.\nDo you want to associate it with your account ?",
    'attach_success_str': "The plugged swekey is now attached to your account",
    'attach_failed_str'	: "Failed to attach the plugged swekey to your account",

    // logo url and position
    'logo_url'              : 'http://www.swekey.com',
    'logo_xoffset'          : '0px',
    'logo_yoffset'          : '0px',
    'loginname_width_offset': 0,
    'show_only_plugged'     : false,
    'multiple_logos'        : false,
    'dynamic_login_form'    : false,

    // branding
    'brands'            : '',

    // Mandatory
    'swekey_dir_url'    : '',       // The URL of the swekey directory
    'user_input_names'  : [],       // The names of the login input fields
    'logout_url'		: null		// Page that must be called to logout the user
};


var swekey_ids = "undefined";
var swekey_logos = [];
var swekey_loginnames_input = [];
var swekey_mutltiple_loginnames_input = false;
var swekey_retry = 0;


/////////////////////////////
// Test
/////////////////////////////

function cb_ajax_test(result)
{
    if (! result.ajax_performed || result.result != 'success' || result.session != 123456789)
    {
     	alert("Ajax test returned bad result");
	}
	else
    {
// We do not need multiple level anymore (jquery limitation)
//    	if (result.arr.length == 2)
		   	alert("Ajax test was successful");
//		else
//		   	alert("Ajax test failed with arrays:" + result.arr);
	}
}

function test_swekey_ajax()
{
   swekey_ajax_caller({'action':'ajax_test' ,'result':'success', 'session':123456789, 'arr':[1,2]}, cb_ajax_test);
}

/////////////////////////////
// Login page
/////////////////////////////

var swekey_session = 0;
var swekey_ids = "unspecified";


function set_swekey_logo(color, error)
{
	for (var i = 0; i < swekey_logos.length; i++)
    {
 		if (swekey_integration_params.show_only_plugged && color == 'gray')
 		{
			swekey_logos[i].style.display = 'none';
 		}
 		else
 		{
 			swekey_logos[i].style.display = 'none';
            swekey_logos[i].setAttribute('src', swekey_integration_params.swekey_dir_url + 'swekey-' + color + '-8x16.png');
            var title = eval('swekey_integration_params.logo_' + color + '_str');
            if (error)
                title += ' (' + error + ')';
            swekey_logos[i].setAttribute('title', title);
            swekey_logos[i].style.display = '';
        }
	}
}

function cb_swekey_validate(result)
{
    if (result.session != swekey_session)
        return;

    if (result.error != null)
    {
        if (swekey_retry < 2) // we retry twice (session problems)
        {
	        swekey_retry ++;
            swekey_ids = "";
        	swekey_refresh_login();
        }
        else
        {
        	set_swekey_logo('red', result.error);
		}

        return;
    }

    if (result.ids.length == 0)
    {
        set_swekey_logo('red', 'No swekey validated');
        Swekey_RefreshEmulator();
        return;
    }

    swekey_retry = 0;
    set_swekey_logo('green');

    if (result.user_name)
    	for (var i = 0; i < swekey_loginnames_input.length; i ++)
			swekey_loginnames_input[i].value = result.user_name;
}

function cb_get_rnd_token(result)
{
    if (result.session != swekey_session)
        return;

    if (result.error != null)
    {
        set_swekey_logo('red', error);
        return;
    }

    if (result.rt.length != 64)
    {
        set_swekey_logo('red' , 'Bad RT:' + result.rt);
        return;
    }

  	if (result.no_linked_otp)
  	{
    	Swekey_GetOtps(swekey_ids, result.rt, function(ids, rt, otps)
		{
			swekey_ajax_caller({'action':'swekey_validate' ,'session':result.session, 'rt':rt, 'ids':ids, 'otps':otps}, cb_swekey_validate);
		});
	}
    else
  	{
    	Swekey_GetSmartOtps(swekey_ids, result.rt, function(ids, rt, otps)
		{
			swekey_ajax_caller({'action':'swekey_validate' ,'session':result.session, 'rt':rt, 'ids':ids, 'otps':otps}, cb_swekey_validate);
		});
	}
}

function swekey_refresh_login()
{
	var ids = Swekey_ListBrandedKeyIds(swekey_integration_params.brands)
	if (ids != swekey_ids)
	{
        swekey_session ++;
        swekey_ids = ids;

	    if (ids == "")
	    {
	    	set_swekey_logo('gray');
			swekey_ajax_caller({'action':'unplugged', 'session':swekey_session}, null);
       }
        else
		{
            set_swekey_logo('orange');
            swekey_ajax_caller({'action':'get_rnd_token', 'session':swekey_session}, cb_get_rnd_token);
		}
    }

    setTimeout("swekey_refresh_login()", 1000);
}


function insert_key_logo()
{
	if (swekey_loginnames_input[0].offsetWidth != 0) // the page is loaded (IE)
	{
		for (var i = 0; i < swekey_loginnames_input.length; i ++)
		{
			var isIE = (navigator.userAgent.toLowerCase().indexOf('msie') >= 0);

	    	if (swekey_integration_params.loginname_width_offset != 0)
				swekey_loginnames_input[i].style.width = (swekey_loginnames_input[i].offsetWidth - swekey_integration_params.loginname_width_offset) + 'px';

	    	if (swekey_loginnames_input[i].parentNode != null)
	    	{
	        	if (swekey_loginnames_input[i].nextSibling == null)
	        		swekey_loginnames_input[i].parentNode.appendChild(swekey_logos[i]);
	        	else
	        		swekey_loginnames_input[i].parentNode.insertBefore(swekey_logos[i], swekey_loginnames_input[i].nextSibling);
	        }

			try
			{
		    	if (isIE) // do it again after the element is attached
		    	{
					swekey_logos[i].style.verticalAlign = 'middle';
					swekey_logos[i].style.position = 'relative';
					swekey_logos[i].style.left = swekey_integration_params.logo_xoffset;
					swekey_logos[i].style.top = swekey_integration_params.logo_yoffset;
			    	if (swekey_loginnames_input[i].currentStyle.styleFloat == "right")
				    	swekey_logos[i].style.styleFloat = "right";
		    	}
		    	else
		    	{
					if (window.getComputedStyle(swekey_loginnames_input[i], "").cssFloat == "right")
				    	swekey_logos[i].style.cssFloat = "right";
		    	}
	    	}
	    	catch (e)
	    	{
	    	}
		}
        setTimeout("swekey_refresh_login()", 1);
	}
	else
		setTimeout("insert_key_logo()", 10);
}

function swekey_login_onload()
{
    swekey_loginnames_input = [];

	for (var i = 0; i < swekey_integration_params.user_input_names.length; i++)
	{
		if (swekey_integration_params.user_input_names[i] != "")
		{
            objects = document.getElementsByName(swekey_integration_params.user_input_names[i]);
            if (objects != null)
				for (var j = 0; j < objects.length; j++)
           	 		if (objects[j].tagName.toLowerCase() == 'input')
						swekey_loginnames_input[swekey_loginnames_input.length] = objects[j];
	    }
    }

    if (! swekey_integration_params.multiple_logos && swekey_loginnames_input.length > 0)
 	   swekey_loginnames_input = [swekey_loginnames_input[0]];

    swekey_logos = [];

    if (swekey_loginnames_input.length > 0)
    {
		for (var i = 0; i < swekey_loginnames_input.length; i++)
	    {
	    	swekey_logos[i] = document.createElement('img');
	    	swekey_logos[i].setAttribute('id', 'swekey_logos');
	    	swekey_logos[i].setAttribute('name', 'swekey_logos');
	    	swekey_logos[i].setAttribute('onClick', 'window.open("' + swekey_integration_params.logo_url + '")');

	    	swekey_logos[i].setAttribute('style', 'width:8px; height:16px; padding:0px 2px 0px 2px; border-spacing:0px; margin:0px; vspace:0px; hspace:0px; frameborder:no; vertical-align:middle;'
			+ 'position:relative;  left:' + swekey_integration_params.logo_xoffset + '; top:' + swekey_integration_params.logo_yoffset + ';');

			swekey_logos[i].setAttribute('src', swekey_integration_params.swekey_dir_url + 'swekey-gray-8x16.png');
		}

		insert_key_logo();
	   	setTimeout("swekey_refresh_login()", 1000);
    }
    else if (swekey_integration_params.dynamic_login_form)
    {
	   	setTimeout("swekey_login_onload()", 1000);
    }
}

function swekey_login_integrate()
{
	document.cookie = "swekey_proposed=''; path=/;";   //  reset the cookie
	swekey_add_load_event(swekey_login_onload);
}



/////////////////////////////
// The user is logged but not attached
/////////////////////////////




function get_cookie ( cookie_name )
{
  var results = document.cookie.match ( '(^|;) ?' + cookie_name + '=([^;]*)(;|$)' );

  if ( results )
    return ( unescape ( results[2] ) );
  else
    return null;
}

function isTemporaryPage()
{
	try
	{
		var metaElements = document.getElementsByTagName ('META');
		for (var i = 0; i < metaElements.length; i++)
		{
			var attrs = metaElements[i].attributes;
			for (var j = 0; j < attrs.length; j++)
				if (attrs[j].name.toLowerCase() == 'http-equiv' && attrs[j].value.toLowerCase() == 'refresh')
					return true;
		}
	}
	catch (e)
	{
	}
	return false;
}


function cb_attach_swekey(result)
{
	if (result.error != null)
	{
		alert(swekey_integration_params.attach_failed_str + "\n" + result.error);
	}
	else
	{
		alert(swekey_integration_params.attach_success_str);
	}
}

function swekey_propose_to_attach()
{
	if (isTemporaryPage())
		return;

	var id = Swekey_ListBrandedKeyIds(swekey_integration_params.brands).substring(0, 32);
	if (id != "")
	{
		if (get_cookie('swekey_proposed') == id)
			return;

    	document.cookie = "swekey_proposed=" + id + "; path=/;";   // call it only once
        if (confirm(swekey_integration_params.attach_ask_str))
        {
  			swekey_ajax_caller({'action':'attach_swekey', 'swekey_id':id}, cb_attach_swekey);
        }
    }
    else
        setTimeout("swekey_propose_to_attach()", 2000);
}


//////////////////////////////////////////////////////////////
// This part is called when a user is logged with a swekey.
// We check that the swekey is still plugged otherwise we
// logout the user
//////////////////////////////////////////////////////////////

var swekey_max_tries = 3;

function check_swekey_presence(swekey_id)
{
	if (swekey_integration_params.logout_url == null || swekey_id == null || swekey_id.length != 32)
		return;

	if (Swekey_ListKeyIds().indexOf(swekey_id) < 0)
	{
		if (Swekey_Loaded())
			swekey_max_tries --;
	}
	else
		swekey_max_tries = 2; // The plugin is loaded we give 2 tries

	if (swekey_max_tries < 0)
		top.location = swekey_integration_params.logout_url;
	else
		setTimeout("check_swekey_presence('" + swekey_id + "')", 1000);
}


//////////////////////////////////////////////////////////////
// Utilities
//////////////////////////////////////////////////////////////

function swekey_add_load_event(func)
{
	var oldonload = window.onload;
	if (typeof window.onload != 'function')
	{
		window.onload = func;
	}
  	else
	{
		window.onload = function()
		{
			if (oldonload)
			{
				oldonload();
			}
			func();
	    }
	}
}