| <!doctype html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>Flag of 64th Competition</title> | |
| </head> | |
| <body> | |
| <main style="font-family:Monaco,Consolas,'Lucida Console','Courier New',serif">Loading ...</main> | |
| <script>(function () { | |
| var now = new Date().toUTCString() | |
| var main = document.getElementsByTagName('main')[0] | |
| var ua = 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) HEICORE/49.1.2623.213 Safari/537.36' | |
| fetch('flag.txt', {method: 'POST', headers: {'If-Unmodified-Since': now, 'User-Agent': ua}}).then(function (res) { | |
| if (res.ok) { | |
| res.text().then(function (text) { | |
| main.innerText = 'The flag is "' + text + '".' | |
| }) | |
| } else { | |
| var lastModified = res.headers.get('Last-Modified') | |
| setInterval(function () { | |
| var diff = (new Date(lastModified).getTime() - Date.now()) / 1000 | |
| var diffSeconds = Math.floor(diff % 86400), diffDays = Math.floor(diff / 86400) | |
| main.innerText = 'Not yet! The competition will start after ' + diffDays + ' days and ' + diffSeconds + ' seconds.' | |
| }, 1000) | |
| } | |
| }) | |
| })()</script> | |
| </body> | |
| </html> |
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