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comparison client.js @ 45:8b69b3a1ef8e

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Add support for WebSocket.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Sat, 23 May 2020 18:58:01 +0200
parents fe59565063af
children 010b905a74d4
comparison
equal deleted inserted replaced
44:1b07435c7891 45:8b69b3a1ef8e
72 const xhr = new XMLHttpRequest(); 72 const xhr = new XMLHttpRequest();
73 xhr.onload = function (evt) { 73 xhr.onload = function (evt) {
74 const xml = evt.target.responseXML; 74 const xml = evt.target.responseXML;
75 const links = parseXPath(xml, './xrd:XRD/xrd:Link', XPathResult.ORDERED_NODE_ITERATOR_TYPE); 75 const links = parseXPath(xml, './xrd:XRD/xrd:Link', XPathResult.ORDERED_NODE_ITERATOR_TYPE);
76 let bosh_service = null; 76 let bosh_service = null;
77 let ws_service = null;
77 while (true) { 78 while (true) {
78 const link = links.iterateNext(); 79 const link = links.iterateNext();
79 if (!link) 80 if (!link)
80 break; 81 break;
81 if (link.getAttributeNS(null, 'rel') == 'urn:xmpp:alt-connections:xbosh') { 82 const rel = link.getAttributeNS(null, 'rel');
83 if (rel == 'urn:xmpp:alt-connections:xbosh')
82 bosh_service = link.getAttributeNS(null, 'href'); 84 bosh_service = link.getAttributeNS(null, 'href');
83 break; 85 else if (rel == 'urn:xmpp:alt-connections:websocket')
84 } 86 ws_service = link.getAttributeNS(null, 'href');
85 // TODO: also support WebSocket.
86 } 87 }
87 console.log('bosh_service', bosh_service); 88 console.log('bosh_service', bosh_service);
88 resolve(bosh_service); 89 console.log('ws_service', ws_service);
90 resolve(ws_service || bosh_service);
89 }; 91 };
90 xhr.open('GET', url); 92 xhr.open('GET', url);
91 xhr.send(); 93 xhr.send();
92 }); 94 });
93 } 95 }