55 lines
1.6 KiB
JavaScript
55 lines
1.6 KiB
JavaScript
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var documentLocked = false;
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window.addEventListener('load', function() {
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document.getElementById('lookup-submit').addEventListener('click', function(ev) {
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ev.preventDefault();
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whoisLookup(document.getElementById('lookup-input').value);
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});
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});
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window.addEventListener('popstate', function(ev) {
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if(!ev.state)
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return;
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document.getElementById('lookup-input').value = ev.state.target || '';
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document.getElementById('lookup-result').innerText = ev.state.responseText || 'Enter a domain or IP address!';
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});
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function lockDocument() {
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if(documentLocked)
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return false;
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document.body.classList.add('locked');
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document.getElementById('lookup-input').disabled = true;
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documentLocked = true;
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return true;
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}
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function freeDocument() {
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if(!documentLocked)
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return false;
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document.body.classList.remove('locked');
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document.getElementById('lookup-input').disabled = false;
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documentLocked = false;
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return true;
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}
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function whoisLookup(domain) {
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if(!lockDocument())
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return;
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var xhr = new XMLHttpRequest;
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xhr.addEventListener('readystatechange', function() {
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if(xhr.readyState != 4)
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return;
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var response = JSON.parse(xhr.responseText);
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history.pushState(response, null, location.pathname + '?domain=' + encodeURIComponent(domain));
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document.getElementById('lookup-result').innerText = response.responseText;
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freeDocument();
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});
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xhr.open('GET', whoisUrl + '?ajax=1&domain=' + encodeURIComponent(domain));
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xhr.send();
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}
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