280 lines
12 KiB
JavaScript
280 lines
12 KiB
JavaScript
// vim:set sw=4 ts=4 sts=4 ft=javascript expandtab:
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/*
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* Return the deciphering key stored in anchor part of the URL
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* Stolen from https://github.com/sebsauvage/ZeroBin/blob/master/js/zerobin.js
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*/
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function pageKey() {
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var key = window.location.hash.substring(1); // Get key
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// Some stupid web 2.0 services and redirectors add data AFTER the anchor
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// (such as &utm_source=...).
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// We will strip any additional data.
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// First, strip everything after the equal sign (=) which signals end of base64 string.
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i = key.indexOf('='); if (i>-1) { key = key.substring(0, i + 1); }
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// If the equal sign was not present, some parameters may remain:
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i = key.indexOf('&'); if (i>-1) { key = key.substring(0, i); }
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// Then add trailing equal sign if it's missing
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if (key.charAt(key.length-1)!=='=') key += '=';
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return key;
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}
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function base64ToArrayBuffer(base64) {
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var binary_string = window.atob(base64);
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var len = binary_string.length;
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var bytes = new Uint8Array( len );
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for (var i = 0; i < len; i++) {
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bytes[i] = binary_string.charCodeAt(i);
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}
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return bytes.buffer;
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}
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// Something's wring
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function addAlert(msg) {
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$('#please-wait').remove();
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var pbd = $('.file-progress');
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pbd.attr('role', 'alert');
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pbd.removeClass('progress');
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pbd.html(`<div class="card pink">
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<div class="card-content white-text">
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<strong>${msg}</strong>
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</div>
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</div>`);
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}
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// Spawn WebSocket
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function spawnWebsocket(pa) {
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console.log('Spawning websocket…');
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var ws = new WebSocket(ws_url);
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ws.onopen = function() {
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console.log('Connection is established!');
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var l = $('#loading');
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l.html(i18n.loading.replace(/XX1/, (pa + 1)));
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if ($('#file_pwd').length === 1) {
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val = $('#file_pwd').val();
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window.ws.send(`{"part":${pa}, "file_pwd": "${val}"}`);
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} else {
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window.ws.send(`{"part":${pa}}`);
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}
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};
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ws.onclose = function() {
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console.log('Connection is closed');
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if (!window.completed) {
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window.attempts++;
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if (window.attempts < 10) {
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console.log(`Connection closed. Retrying to get slice ${pa}`);
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window.ws = spawnWebsocket(pa);
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} else {
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alert(i18n.tooMuchAttempts);
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}
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}
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}
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ws.onmessage = function(e) {
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var res = e.data.split('XXMOJOXX');
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var json = res.shift();
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var data = JSON.parse(json);
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// Reset counter since we succeded to open a websocket and got a message
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window.attempts = 0;
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if (data.msg !== undefined) {
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addAlert(data.msg);
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console.log(data.msg);
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if ($('#file_pwd').length === 1) {
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$('.file-abort').addClass('hide');
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}
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window.onbeforeunload = null;
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window.attempts = 10;
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} else {
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console.log(`Getting slice ${data.part + 1} of ${data.total}`);
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var slice = JSON.parse(res.shift());
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var percent = Math.round(1000 * (data.part + 1)/data.total)/10;
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var wClass = percent.toString().replace('.', '-');
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var pb = $('#pb');
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pb.removeClass();
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pb.addClass('determinate');
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pb.addClass(`width-${wClass}`);
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pb.attr('aria-valuenow', percent);
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$('#pbt').html(`${percent}%`);
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try {
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var b64 = sjcl.decrypt(window.key, slice);
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window.a[data.part] = base64ToArrayBuffer(b64);
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if (data.part + 1 === data.total) {
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var blob = new Blob(a, {type: data.type});
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notify(i18n.fileDownloaded, data.name);
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$('#please-wait').remove();
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$('#loading').remove();
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var pbd = $('#pbd');
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pbd.attr('class', 'center-align');
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// IE & Edge fix for downloading blob files, gives option to save or open the file when the link is opened.
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if (window.navigator && window.navigator.msSaveOrOpenBlob) {
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var fileName = escapeHtml(data.name);
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window.navigator.msSaveOrOpenBlob(blob, fileName);
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} else {
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var blobURL = URL.createObjectURL(blob);
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}
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var innerHTML = `<p><a href="${blobURL}" class="btn btn-primary" download="${escapeHtml(data.name)}">${i18n.download}</a></p>`;
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var isZip = ($('#filesize').attr('data-zipped') === 'true');
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if (data.type.match(/^image\//) !== null) {
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innerHTML += `<img id="render-image" class="responsive-img" alt="${escapeHtml(data.name)}" src="${blobURL}">`;
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} else if (data.type.match(/^video\//) !== null) {
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innerHTML += `<video class="responsive-video" controls>
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<source src="${blobURL}" type="${data.type}">
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</video>`;
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} else if (data.type.match(/^audio\//) !== null) {
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innerHTML += `<audio class="responsive-video" controls>
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<source src="${blobURL}" type="${data.type}">
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</audio>`;
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} else if (isZip) {
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innerHTML += `<p><a class="btn btn-primary" id="showZipContent">${i18n.showZipContent}</a></p>`;
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}
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pbd.html(innerHTML);
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if (isZip) {
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$('#showZipContent').click(function() {
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JSZip.loadAsync(blob)
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.then(function (zip) {
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var innerHTML = `<h3>${i18n.zipContent}</h3><ul>`;
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zip.forEach(function (relativePath, zipEntry) {
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innerHTML += `<li>
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${escapeHtml(zipEntry.name)}
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(${filesize(zipEntry._data.uncompressedSize, {base: 10})})
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<a href="#"
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download="${escapeHtml(zipEntry.name)}"
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class="download-zip-content"
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title="${i18n.download}">
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<i class="mdi-file-file-download"></i>
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</a>
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</li>`
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});
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innerHTML += '</ul>';
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pbd.append(innerHTML);
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$('.download-zip-content').click(function(e) {
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e.preventDefault();
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var t = $(this);
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var filename = t.attr('download');
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zip.files[filename].async('blob').then(function(blob) {
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t.unbind('click');
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t.attr('href', URL.createObjectURL(blob));
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t[0].click();
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});
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})
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$('#showZipContent').hide();
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$('#showZipContent').unbind('click');
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});
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});
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}
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if ($('#file_pwd').length === 1) {
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val = $('#file_pwd').val();
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window.ws.send(`{"ended":true, "file_pwd": "${val}"}`);
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} else {
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window.ws.send('{"ended":true}');
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}
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window.onbeforeunload = null;
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window.completed = true;
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$('#abort').remove();
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} else {
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var l = $('#loading');
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l.html(i18n.loading.replace(/XX1/, (data.part + 1)));
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if (ws.readyState === 3) {
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window.ws = spawnWebsocket(data.part + 1);
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} else {
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window.ws.onclose = function() {
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console.log('Connection is closed');
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if (!window.completed) {
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console.log(`Connection closed. Retrying to get slice ${data.part + 1}`);
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window.ws = spawnWebsocket(data.part + 1);
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}
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}
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window.ws.onerror = function() {
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console.log(`Error. Retrying to get slice ${data.part + 1}`);
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window.ws = spawnWebsocket(data.part + 1);
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};
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if ($('#file_pwd').length === 1) {
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val = $('#file_pwd').val();
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window.ws.send(`{"part":${data.part + 1}, "file_pwd": "${val}"}`);
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} else {
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window.ws.send(`{"part":${data.part + 1}}`);
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}
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}
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}
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} catch(err) {
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if (err.message === 'ccm: tag doesn\'t match') {
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addAlert(i18n.badkey);
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} else {
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addAlert(err.message);
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}
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window.onbeforeunload = null;
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}
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}
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}
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ws.onerror = function() {
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window.attempts++;
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if (window.attempts < 10) {
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console.log(`Error. Retrying to get slice ${pa}`);
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window.ws = spawnWebsocket(pa);
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} else {
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alert(i18n.tooMuchAttempts);
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}
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}
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return ws;
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}
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// When it's ready
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$(document).ready(function(){
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$('#abort').click(function() {
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window.ws.onclose = function() {};
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window.ws.close();
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$('#please-wait, #loading, #pbd, #abort').remove();
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$('#filesize').parent().append(`<h4>${i18n.aborted1}</h4>
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<p>
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<a id="reloadLocation"
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class="waves-effect waves-light btn">
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${i18n.aborted2}
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</a>
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</p>`);
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window.onbeforeunload = null;
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$('#reloadLocation').on('click', function(e) {
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e.preventDefault();
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window.location.reload();
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})
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});
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$('#filesize').html(filesize($('#filesize').attr('data-filesize'), {base: 10}));
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window.a = new Array();
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window.key = pageKey();
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window.completed = false;
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window.attempts = 0;
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if (key !== '=') {
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var go = true;
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if ($('#file_pwd').length === 1) {
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go = false;
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$('#go').click(function() {
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$('.file-progress, .file-abort').removeClass('hide');
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$('#file_pwd').parent().parent().addClass('hide');
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// Set websocket
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window.ws = spawnWebsocket(0);
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// Prevent exiting page before full download
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window.onbeforeunload = confirmExit;
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});
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}
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if (go) {
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// Set websocket
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window.ws = spawnWebsocket(0);
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// Prevent exiting page before full download
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window.onbeforeunload = confirmExit;
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}
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} else {
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addAlert(i18n.nokey);
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}
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});
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