209 lines
8.3 KiB
JavaScript
209 lines
8.3 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>'].join(''));
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}
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// Spawn WebSocket
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function spawnWebsocket(pa) {
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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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window.ws.send('{"part":'+pa+', "file_pwd": "'+$('#file_pwd').val()+'"}');
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} else {
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window.ws.send('{"part":'+pa+'}');
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}
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};
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ws.onclose = function() {
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console.log('Connection is closed');
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if (!window.completed) {
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console.log('Connection closed. Retrying to get slice '+pa);
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window.ws = spawnWebsocket(pa);
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}
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}
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ws.onmessage = function(e) {
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var res = e.data.split('XXMOJOXX');
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var json = res.shift();
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var data = JSON.parse(json);
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if (data.msg !== undefined) {
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addAlert(data.msg);
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console.log(data.msg);
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if ($('#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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} 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(100 * (data.part + 1)/data.total);
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var pb = $('#pb');
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pb.css('width', percent+'%');
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pb.attr('aria-valuenow', percent);
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$('#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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$('#please-wait').remove();
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$('#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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if (data.type.match(/^image\//) !== null) {
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innerHTML.push('<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.push('<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.push('<audio class="responsive-video" controls>',
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'<source src="', blobURL, '" type="', data.type, '">',
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'</audio>');
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}
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pbd.html(innerHTML.join(''));
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if ($('#file_pwd').length === 1) {
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window.ws.send('{"ended":true, "file_pwd": "'+$('#file_pwd').val()+'"}');
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} else {
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window.ws.send('{"ended":true}');
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}
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window.onbeforeunload = null;
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window.completed = true;
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$('#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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window.ws.send('{"part":'+(data.part + 1)+', "file_pwd": "'+$('#file_pwd').val()+'"}');
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} else {
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window.ws.send('{"part":'+(data.part + 1)+'}');
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}
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}
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}
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} catch(err) {
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if (err.message === 'ccm: tag doesn\'t match') {
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addAlert(i18n.badkey);
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} else {
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addAlert(err.message);
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}
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window.onbeforeunload = null;
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}
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}
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}
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ws.onerror = function() {
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console.log('Error. Retrying to get slice '+pa);
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window.ws = spawnWebsocket(pa);
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}
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return ws;
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}
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// When it's ready
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$(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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$('#filesize').parent().append('<h4>'+i18n.aborted1+'</h4><a onClick="window.location.reload();" class="waves-effect waves-light btn">'+i18n.aborted2+'</a></p>');
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window.onbeforeunload = null;
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});
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$('#filesize').html(filesize($('#filesize').attr('data-filesize'), {base: 10}));
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window.a = new Array();
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window.key = pageKey();
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window.completed = false;
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if (key !== '=') {
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var go = true;
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if ($('#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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