https://inlucro.org/wp-includes/js/wp-embed.js?ver=4.5.33

1/**
2 * WordPress inline HTML embed
3 *
4 * @since 4.4.0
5 *
6 * This file cannot have ampersands in it. This is to ensure
7 * it can be embedded in older versions of WordPress.
8 * See https://core.trac.wordpress.org/changeset/35708.
9 */
10(function ( window, document ) {
11	'use strict';
12
13	var supportedBrowser = false,
14		loaded = false;
15
16		if ( document.querySelector ) {
17			if ( window.addEventListener ) {
18				supportedBrowser = true;
19			}
20		}
21
22	window.wp = window.wp || {};
23
24	if ( !! window.wp.receiveEmbedMessage ) {
25		return;
26	}
27
28	window.wp.receiveEmbedMessage = function( e ) {
29		var data = e.data;
30		if ( ! ( data.secret || data.message || data.value ) ) {
31			return;
32		}
33
34		if ( /[^a-zA-Z0-9]/.test( data.secret ) ) {
35			return;
36		}
37
38		var iframes = document.querySelectorAll( 'iframe[data-secret="' + data.secret + '"]' ),
39			blockquotes = document.querySelectorAll( 'blockquote[data-secret="' + data.secret + '"]' ),
40			allowedProtocols = new RegExp( '^https?:$', 'i' ),
41			i, source, height, sourceURL, targetURL;
42
43		for ( i = 0; i < blockquotes.length; i++ ) {
44			blockquotes[ i ].style.display = 'none';
45		}
46
47		for ( i = 0; i < iframes.length; i++ ) {
48			source = iframes[ i ];
49
50			if ( e.source !== source.contentWindow ) {
51				continue;
52			}
53
54			source.removeAttribute( 'style' );
55
56			/* Resize the iframe on request. */
57			if ( 'height' === data.message ) {
58				height = parseInt( data.value, 10 );
59				if ( height > 1000 ) {
60					height = 1000;
61				} else if ( ~~height < 200 ) {
62					height = 200;
63				}
64
65				source.height = height;
66			}
67
68			/* Link to a specific URL on request. */
69			if ( 'link' === data.message ) {
70				sourceURL = document.createElement( 'a' );
71				targetURL = document.createElement( 'a' );
72
73				sourceURL.href = source.getAttribute( 'src' );
74				targetURL.href = data.value;
75
76				/* Only follow link if the protocol is in the allow list. */
77				if ( ! allowedProtocols.test( targetURL.protocol ) ) {
78					continue;
79				}
80
81				/* Only continue if link hostname matches iframe's hostname. */
82				if ( targetURL.host === sourceURL.host ) {
83					if ( document.activeElement === source ) {
84						window.top.location.href = data.value;
85					}
86				}
87			}
88		}
89	};
90
91	function onLoad() {
92		if ( loaded ) {
93			return;
94		}
95
96		loaded = true;
97
98		var isIE10 = -1 !== navigator.appVersion.indexOf( 'MSIE 10' ),
99			isIE11 = !!navigator.userAgent.match( /Trident.*rv:11\./ ),
100			iframes = document.querySelectorAll( 'iframe.wp-embedded-content' ),
101			iframeClone, i, source, secret;
102
103		for ( i = 0; i < iframes.length; i++ ) {
104			source = iframes[ i ];
105
106			if ( source.getAttribute( 'data-secret' ) ) {
107				continue;
108			}
109
110			/* Add secret to iframe */
111			secret = Math.random().toString( 36 ).substr( 2, 10 );
112			source.src += '#?secret=' + secret;

113			source.setAttribute( 'data-secret', secret );
114
115			/* Remove security attribute from iframes in IE10 and IE11. */
116			if ( ( isIE10 || isIE11 ) ) {
117				iframeClone = source.cloneNode( true );
118				iframeClone.removeAttribute( 'security' );
119				source.parentNode.replaceChild( iframeClone, source );
120			}
121		}
122	}
123
124	if ( supportedBrowser ) {
125		window.addEventListener( 'message', window.wp.receiveEmbedMessage, false );
126		document.addEventListener( 'DOMContentLoaded', onLoad, false );
127		window.addEventListener( 'load', onLoad, false );
128	}
129})( window, document );