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<h2>Archiving <?= $url ?>...</h2>
<p>Current position in queue: <span id="position">unavailable</span></p>
<script type="text/javascript">
// If our request is the one that starts the worker, it's output will be 0
// and it won't update the variable soon (or ever)
// But if it's not the worker, the variable will be updated (quickly)
var queuePos = 0;
function requestDownload(url) {
var request = new XMLHttpRequest();
request.onreadystatechange = function() {
if (request.readyState < 4) return;
console.log(request.responseText);
queuePos = request.responseText;
}
request.open("POST", "#", true);
request.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
request.withCredentials = true;
request.send('async=true&url=' +
url +
'<?php if (array_key_exists("manual", $_POST)) { echo "&manual=" . $_POST["manual"]; } ?>');
}
requestDownload('<?= $url ?>');
const position = document.getElementById('position');
function updatePosition(url) {
var request = new XMLHttpRequest();
request.onreadystatechange = function() {
if (request.readyState < 4) return;
if (queuePos < request.responseText) {
window.location.href = '/archive/?url=' + url;
return;
}
let pos = queuePos - request.responseText;
if (pos == NaN || pos === 'NaN') {
position.innerText = 'Archival timeouted! Archive is incomplete!';
}
else {
position.innerText = pos;
}
setTimeout(updatePosition, 1000, url);
}
request.open("POST", "/archive/create/status.php", true);
request.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
request.send('url=' + url);
}
updatePosition('<?= $url ?>');
</script>
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