https://www.fondationpourlecole.org/wp-content/plugins/obflink/script/obflink.js?ver=2.3.2

1// @see https://developer.mozilla.org/fr/docs/Web/API/EventTarget/addEventListener
2// Thank you Maxence
3// Check if third argument options is supported
4// https://caniuse.com/mdn-api_eventtarget_addeventlistener_options_parameter
5let optionsSupported = false;
6try {
7    let options = Object.defineProperty( {}, "passive", {
8        get: function() {
9            optionsSupported = true;
10        }
11    } );
12    window.addEventListener( "test", null, options );
13    window.removeEventListener( "test", null, options );
14} catch( err ) {
15    optionsSupported = false;
16}
17
18document.addEventListener( 'DOMContentLoaded', function() {
19    let options = false;
20    if ( optionsSupported ) {
21        options = { once: true, passive: true };
22    }
23    var links = document.querySelectorAll( '[' + obflink_link_options.data_url + ']' );
24    for ( var i = 0; i < links.length; i++ ) {
25        links[i].addEventListener( 'click',       deObfuscate, options );
26        links[i].addEventListener( 'contextmenu', deObfuscate, options );
27        links[i].addEventListener( 'focusin',     deObfuscate, options );
28        links[i].addEventListener( 'mouseover',   deObfuscate, options );
29    }
30} );
31
32var deObfuscate = function() {
33
34    // Retrieve the (modifiable) attributes names
35    let data_url_name    = obflink_link_options.data_url;
36
37    let link = this.getAttribute( data_url_name );
38    // Prevent double decode; == is intentional
39    if ( link == null ) {
40        return;
41    }
42    let url = decodeURIComponent( window.atob( link ) );
43
44    // Reset href
45    this.setAttribute( 'href', url );
46    this.removeAttribute( data_url_name );
47
48    // Maybe transform <span> into <a>
49    if ( this.nodeName == 'SPAN' ) {
50
51        // Create new node
52        let aNode = document.createElement( 'a' );
53
54        // Transfer link text
55        aNode.innerHTML = this.innerHTML;
56
57        // Transfer attributes
58        for ( const attr of this.attributes ) {
59            aNode.setAttribute( attr.name, attr.value );
60        }
61
62        // Insert new node and remove original <span>
63        this.parentNode.insertBefore( aNode, this );
64        this.remove();
65    }
66}