wp-includes/js/wp-auth-check.js

   1 // Interim login dialog
   2 (function($){
   3         var wrap, check, next;
   4
   5         function show() {
   6                 var parent = $('#wp-auth-check'), form = $('#wp-auth-check-form'), noframe = wrap.find('.wp-auth-fallback-expired'), frame, loaded = false;
   7
   8                 if ( form.length ) {
   9                         // Add unload confirmation to counter (frame-busting) JS redirects
  10                         $(window).on( 'beforeunload.wp-auth-check', function(e) {
  11                                 e.originalEvent.returnValue = window.authcheckL10n.beforeunload;
  12                         });
  13
  14                         frame = $('<iframe id="wp-auth-check-frame" frameborder="0">').attr( 'title', noframe.text() );
  15                         frame.load( function(e) {
  16                                 var height, body;
  17
  18                                 loaded = true;
  19
  20                                 try {
  21                                         body = $(this).contents().find('body');
  22                                         height = body.height();
  23                                 } catch(e) {
  24                                         wrap.addClass('fallback');
  25                                         parent.css( 'max-height', '' );
  26                                         form.remove();
  27                                         noframe.focus();
  28                                         return;
  29                                 }
  30
  31                                 if ( height ) {
  32                                         if ( body && body.hasClass('interim-login-success') )
  33                                                 hide();
  34                                         else
  35                                                 parent.css( 'max-height', height + 40 + 'px' );
  36                                 } else if ( ! body || ! body.length ) {
  37                                         // Catch "silent" iframe origin exceptions in WebKit after another page is loaded in the iframe
  38                                         wrap.addClass('fallback');
  39                                         parent.css( 'max-height', '' );
  40                                         form.remove();
  41                                         noframe.focus();
  42                                 }
  43                         }).attr( 'src', form.data('src') );
  44
  45                         $('#wp-auth-check-form').append( frame );
  46                 }
  47
  48                 wrap.removeClass('hidden');
  49
  50                 if ( frame ) {
  51                         frame.focus();
  52                         // WebKit doesn't throw an error if the iframe fails to load because of "X-Frame-Options: DENY" header.
  53                         // Wait for 10 sec. and switch to the fallback text.
  54                         setTimeout( function() {
  55                                 if ( ! loaded ) {
  56                                         wrap.addClass('fallback');
  57                                         form.remove();
  58                                         noframe.focus();
  59                                 }
  60                         }, 10000 );
  61                 } else {
  62                         noframe.focus();
  63                 }
  64         }
  65
  66         function hide() {
  67                 $(window).off( 'beforeunload.wp-auth-check' );
  68
  69                 // When on the Edit Post screen, speed up heartbeat after the user logs in to quickly refresh nonces
  70                 if ( typeof adminpage != 'undefined' && ( adminpage == 'post-php' || adminpage == 'post-new-php' )
  71                          && typeof wp != 'undefined' && wp.heartbeat ) {
  72
  73                         wp.heartbeat.interval( 'fast', 1 );
  74                 }
  75
  76                 wrap.fadeOut( 200, function() {
  77                         wrap.addClass('hidden').css('display', '');
  78                         $('#wp-auth-check-frame').remove();
  79                 });
  80         }
  81
  82         function schedule() {
  83                 var interval = parseInt( window.authcheckL10n.interval, 10 ) || 180; // in seconds, default 3 min.
  84                 next = ( new Date() ).getTime() + ( interval * 1000 );
  85         }
  86
  87         $( document ).on( 'heartbeat-tick.wp-auth-check', function( e, data ) {
  88                 if ( 'wp-auth-check' in data ) {
  89                         schedule();
  90                         if ( ! data['wp-auth-check'] && wrap.hasClass('hidden') )
  91                                 show();
  92                         else if ( data['wp-auth-check'] && ! wrap.hasClass('hidden') )
  93                                 hide();
  94                 }
  95         }).on( 'heartbeat-send.wp-auth-check', function( e, data ) {
  96                 if ( ( new Date() ).getTime() > next )
  97                         data['wp-auth-check'] = true;
  98         }).ready( function() {
  99                 schedule();
 100                 wrap = $('#wp-auth-check-wrap');
 101                 wrap.find('.wp-auth-check-close').on( 'click', function(e) {
 102                         hide();
 103                 });
 104         });
 105
 106 }(jQuery));