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asm.js polyfill for crypto.subtle.digest
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.vscode/settings.json
vendored
2
.vscode/settings.json
vendored
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@ -22,7 +22,7 @@
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"terminal.ansiBrightCyan": "#9cf0ed",
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"terminal.ansiBrightWhite": "#ffffff",
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},
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"python.testing.pyTestEnabled": false,
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"python.testing.pytestEnabled": false,
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"python.testing.nosetestsEnabled": false,
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"python.testing.unittestEnabled": true,
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"python.testing.unittestArgs": [
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@ -37,20 +37,60 @@ window.onerror = function (msg, url, lineNo, columnNo, error) {
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hcroak(html.join('\n'));
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};
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// https://stackoverflow.com/a/950146
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function import_js(url, cb) {
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var head = document.head || document.getElementsByTagName('head')[0];
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var script = document.createElement('script');
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script.type = 'text/javascript';
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script.src = url;
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script.onreadystatechange = cb;
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script.onload = cb;
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head.appendChild(script);
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}
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function o(id) {
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return document.getElementById(id);
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}
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(function () {
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// hide basic uploader
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o('up2k').style.display = 'block';
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o('bup').style.display = 'none';
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// show modal message
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function showmodal(msg) {
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o('u2notbtn').innerHTML = msg;
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o('u2btn').style.display = 'none';
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o('u2notbtn').style.display = 'block';
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o('u2conf').style.opacity = '0.5';
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}
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// hide modal message
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function unmodal() {
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o('u2notbtn').style.display = 'none';
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o('u2btn').style.display = 'block';
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o('u2conf').style.opacity = '1';
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o('u2notbtn').innerHTML = '';
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}
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// might need sha512 polyfill when non-https (thx webkit (again))
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var have_crypto = window.crypto && crypto.subtle && crypto.subtle.digest;
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var shame = 'your browser <a href="https://www.chromium.org/blink/webcrypto">disables sha512</a> unless you <a href="' + (window.location + '').replace(':', 's:') + '">use https</a>'
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//have_crypto = false;
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// upload ui hidden by default, clicking the header shows it
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o('u2tgl').onclick = function (e) {
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e.preventDefault();
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o('u2tgl').style.display = 'none';
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o('u2body').style.display = 'block';
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if (!have_crypto && !window.asmCrypto) {
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showmodal('<h1>loading sha512.js</h1><h2>since ' + shame + '</h2><h4>thanks chrome</h4>');
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import_js('/.cpr/deps/sha512.js', unmodal);
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o('u2foot').innerHTML = 'seems like ' + shame + ' so do that if you want more performance';
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}
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};
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// shows or clears an error message in the basic uploader ui
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@ -123,10 +163,13 @@ function o(id) {
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};
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var bobslice = File.prototype.slice || File.prototype.mozSlice || File.prototype.webkitSlice;
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var have_crypto = window.crypto && crypto.subtle && crypto.subtle.digest;
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if (!bobslice || !window.FileReader || !window.FileList || !have_crypto)
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return un2k("this is the basic uploader; the good one needs at least<br />chrome 37 // firefox 34 // edge 12 // opera 24 // safari 7");
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if (!bobslice || !window.FileReader || !window.FileList)
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return un2k("this is the basic uploader; up2k needs at least<br />chrome 21 // firefox 13 // edge 12 // opera 12 // safari 5.1");
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// probably safe now
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o('up2k').style.display = 'block';
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o('bup').style.display = 'none';
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function nav() {
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o('file' + fdom_ctr).click();
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@ -157,6 +200,7 @@ function o(id) {
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var fobj = files[a];
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var entry = {
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"n": parseInt(st.files.length.toString()),
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"t0": new Date().getTime(), // TODO remove probably
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"fobj": fobj,
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"name": fobj.name,
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"size": fobj.size,
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@ -317,8 +361,25 @@ function o(id) {
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};
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var segm_load = async function (ev) {
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const hashbuf = await crypto.subtle.digest('SHA-256', ev.target.result);
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t.hash.push(buf2b64(hashbuf));
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var filebuf = ev.target.result;
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var hashbuf;
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if (have_crypto)
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hashbuf = await crypto.subtle.digest('SHA-512', filebuf);
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else {
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var ofs = 0;
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var eof = filebuf.byteLength;
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var hasher = new asmCrypto.Sha512();
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//hasher.process(new Uint8Array(filebuf));
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while (ofs < eof) {
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// saves memory, doesn't affect perf
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var ofs2 = Math.min(eof, ofs + 1024 * 1024);
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hasher.process(new Uint8Array(filebuf.slice(ofs, ofs2)));
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ofs = ofs2;
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}
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hasher.finish();
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hashbuf = hasher.result;
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}
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t.hash.push(buf2b64(hashbuf).substr(0, 44));
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prog(t.n, nchunk, col_hashed);
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if (++nchunk < nchunks) {
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@ -347,6 +408,10 @@ function o(id) {
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var t = st.todo.handshake.shift();
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st.busy.handshake.push(t);
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// TODO remove
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var ts = new Date().getTime();
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alert((ts - t.t0) + '\n' + t.hash.join('\n'));
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var xhr = new XMLHttpRequest();
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xhr.onload = function (ev) {
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if (xhr.status == 200) {
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@ -14,6 +14,16 @@
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display: none;
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padding: 1.5em 1em 0 1em;
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}
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#u2form {
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position: absolute;
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top: 0;
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left: 0;
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}
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#u2form input {
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background: #444;
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border: 0px solid #444;
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outline: none;
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}
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#u2err.err {
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color: #f87;
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padding: .5em;
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@ -24,7 +34,7 @@
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}
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#u2body {
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display: none;
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padding-bottom: 2em;
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padding-bottom: 1em;
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}
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#u2form {
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width: 2px;
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@ -50,6 +60,12 @@
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cursor: pointer;
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box-shadow: .4em .4em 0 #111;
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}
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#u2notbtn {
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display: none;
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text-align: center;
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background: #333;
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padding-top: 1em;
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}
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#u2tab {
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margin: 3em auto;
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width: calc(100% - 2em);
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@ -9,8 +9,8 @@
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<div id="up2k">
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<a href="#" id="u2tgl">you can upload here</a>
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<form id="u2form" method="POST" enctype="multipart/form-data" onsubmit="return false;"></form>
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<div id="u2body">
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<form id="u2form" method="POST" enctype="multipart/form-data" onsubmit="return false;"></form>
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<table id="u2conf">
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<tr>
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@ -31,6 +31,8 @@
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</tr>
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</table>
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<div id="u2notbtn"></div>
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<div id="u2btn">
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drop files here<br />
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(or click me)
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@ -44,6 +46,7 @@
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</tr>
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</table>
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switch to the <a href="#" id="u2nope">basic uploader</a> if you don't need resumable uploads and progress bars
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<p id="u2foot"></p>
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<p>( if you don't need resumable uploads and progress bars just use the <a href="#" id="u2nope" onclick="javascript:un2k();">basic uploader</a>)</p>
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</div>
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</div>
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@ -1,26 +1,24 @@
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FROM alpine:3.10
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WORKDIR /z
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ENV ver_forge=0.8.5 \
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ENV ver_asmcrypto=2821dd1dedd1196c378f5854037dda5c869313f3 \
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ver_ogvjs=1.6.1
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# download
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RUN apk add make g++ git bash npm patch wget tar pigz gzip unzip \
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&& wget https://github.com/digitalbazaar/forge/archive/$ver_forge.tar.gz \
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&& wget https://github.com/brion/ogv.js/releases/download/$ver_ogvjs/ogvjs-$ver_ogvjs.zip \
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&& tar -xf $ver_forge.tar.gz \
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&& wget https://github.com/asmcrypto/asmcrypto.js/archive/$ver_asmcrypto.tar.gz \
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&& unzip ogvjs-$ver_ogvjs.zip \
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&& cd forge-$ver_forge \
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&& npm install
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&& tar -xf $ver_asmcrypto.tar.gz \
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&& cd asmcrypto.js-$ver_asmcrypto \
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&& npm install \
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&& mkdir /z/dist
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# customize
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COPY forge.patch /z
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# build forge
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RUN cd forge-$ver_forge \
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&& patch -p1 < /z/forge.patch \
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&& npm run build \
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&& mkdir /z/dist \
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&& cp -pv dist/forge.sha512.* /z/dist
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# build asmcrypto
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RUN cd asmcrypto.js-$ver_asmcrypto \
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&& echo "export { Sha512 } from './hash/sha512/sha512';" > src/entry-export_all.ts \
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&& node -r esm build.js \
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&& mv asmcrypto.all.es5.js /z/dist/sha512.js \
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&& mv dist_es5/hash/sha512/sha512.asm.js /z/dist/
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# build ogvjs
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RUN cd ogvjs-$ver_ogvjs \
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