mirror of
https://github.com/ayunami2000/ayunWebEPK.git
synced 2024-11-21 10:16:04 -08:00
166 lines
5.3 KiB
HTML
166 lines
5.3 KiB
HTML
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8"/>
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<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
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<title>ayunWebEPK</title>
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<script type="text/javascript" src="jszip.min.js"></script>
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<script type="text/javascript" src="pako_deflate.min.js"></script>
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<script type="text/javascript" src="sha1.min.js"></script>
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<link rel="preconnect" href="https://fonts.googleapis.com"/>
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<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin/>
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<link href="https://fonts.googleapis.com/css2?family=Nunito&display=swap" rel="stylesheet"/>
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<style>
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a:not([href]) {
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display: none;
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}
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*, ::file-selector-button {
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font-family: 'Nunito', sans-serif;
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}
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body {
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background-color: #111111;
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color: #dddddd;
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}
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input[disabled] {
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opacity: 0.8;
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}
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::file-selector-button, progress {
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background-color: #343434;
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color: #eeeeee;
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border: 1px solid #eeeeee;
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border-radius: 4px;
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}
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a, input {
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color: #dddddd;
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}
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progress {
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height: 1em;
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-webkit-appearance: none;
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-moz-appearance: none;
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appearance: none;
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}
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progress[value="0"][max="1"] {
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display: none;
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}
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::-moz-progress-bar {
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background-color: #eeeeee;
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}
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::-webkit-progress-value {
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background-color: #eeeeee;
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}
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::-webkit-progress-bar {
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background-color: #343434;
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border-radius: 4px;
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}
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</style>
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</head>
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<body>
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<h1>ayunWebEPK</h1>
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<p>Compile EPK files in your browser!</p>
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Select .ZIP archive: <input type="file" onchange="selectFile(this);"/>
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<br/>
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Select resources folder: <input type="file" onchange="selectFile(this);" directory webkitdirectory/>
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<br/>
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<progress value="0" max="1"></progress>
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<a download="assets.epk">Download your EPK!</a>
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<script>
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const downloadLink = document.querySelector('a');
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const progressBar = document.querySelector('progress');
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const fileElems = document.querySelectorAll('input[type=file]');
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function concatTypedArrays(a, b) {
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const c = new (a.constructor)(a.length + b.length);
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c.set(a, 0);
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c.set(b, a.length);
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return c;
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}
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const textEncoder = new TextEncoder();
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function generateIntArray(num) {
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return Uint8Array.of((num >>> 24) & 0xFF, (num >>> 16) & 0xFF, (num >>> 8) & 0xFF, num & 0xFF);
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}
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function generateShortArray(num) {
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return Uint8Array.of((num >>> 8) & 0xFF, num & 0xFF);
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}
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function generateUTF(str) {
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return concatTypedArrays(generateShortArray(str.length), textEncoder.encode(str));
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}
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let comment = '# eaglercraft package file - generated with ayunWebEPK by ayunami2000';
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let baseEPK = textEncoder.encode('EAGPKG!!');
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baseEPK = concatTypedArrays(baseEPK, generateUTF(comment));
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let currentEPK = null;
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function selectFile(fileElem) {
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downloadLink.removeAttribute('href');
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fileElems.forEach(elem => elem.disabled = true);
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if (fileElem.files.length == 1) {
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const zipFile = fileElem.files[0];
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var reader = new FileReader();
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reader.onload = function(e) {
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const zip = new JSZip();
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zip.loadAsync(e.target.result).then(function(zip) {
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progressBar.max = Object.keys(zip.files).length;
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let i = 0;
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for (let fileName in zip.files) {
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if (fileName.endsWith('/')) {
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progressBar.value = i++;
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if (i == progressBar.max) {
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wrapItUp(fileElem);
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}
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continue;
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}
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zip.files[fileName].async('uint8array').then(function(data) {
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processFile(fileName, data);
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progressBar.value = i++;
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if (i == progressBar.max) {
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wrapItUp(fileElem);
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}
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});
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}
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});
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};
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reader.readAsArrayBuffer(zipFile);
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} else if (fileElem.files.length > 1) {
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progressBar.max = fileElem.files.length;
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let i = 0;
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for (let file of fileElem.files) {
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var reader = new FileReader();
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reader.onload = function(e) {
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processFile(file.webkitRelativePath.slice(file.webkitRelativePath.indexOf('/') + 1), new Uint8Array(e.target.result));
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progressBar.value = i++;
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if (i == progressBar.max) {
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wrapItUp(fileElem);
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}
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};
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reader.readAsArrayBuffer(file);
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}
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} else {
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fileElems.forEach(elem => elem.removeAttribute('disabled'));
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}
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}
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function processFile(name, file) {
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currentEPK = currentEPK == null ? generateUTF('<file>') : concatTypedArrays(currentEPK, generateUTF('<file>'));
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currentEPK = concatTypedArrays(currentEPK, generateUTF(name));
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currentEPK = concatTypedArrays(currentEPK, new Uint8Array(sha1.arrayBuffer(file.buffer)));
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currentEPK = concatTypedArrays(currentEPK, generateIntArray(file.length));
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currentEPK = concatTypedArrays(currentEPK, file);
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currentEPK = concatTypedArrays(currentEPK, generateUTF('</file>'));
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}
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function wrapItUp(fileElem) {
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currentEPK = concatTypedArrays(currentEPK, generateUTF(' end'));
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currentEPK = concatTypedArrays(baseEPK, new Uint8Array(pako.deflate(currentEPK, { level: 9 })));
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const blob = new Blob([ currentEPK ], { type: 'application/octet-stream' });
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downloadLink.href = window.URL.createObjectURL(blob);
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currentEPK = null;
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fileElem.value = '';
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progressBar.value = 0;
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progressBar.max = 1;
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fileElems.forEach(elem => elem.removeAttribute('disabled'));
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}
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</script>
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</body>
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</html>
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