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lufi
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Fix #6

This commit is contained in:
Luc Didry 2015-10-04 16:37:01 +02:00
parent d0f87384c9
commit f66f268e20
2 changed files with 45 additions and 24 deletions
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65
public/js/lufi-down.js
View File

@ -31,6 +31,16 @@ function base64ToArrayBuffer(base64) {
return bytes.buffer;
}
// Something's wring
function addAlert(msg) {
document.getElementById('please-wait').remove();
var pbd = document.getElementById('pbd');
pbd.setAttribute('class', 'alert alert-danger');
pbd.setAttribute('role', 'alert');
pbd.innerHTML = '<p>'+msg+'</p>';
}
// Spawn WebSocket
function spawnWebsocket() {
var ws = new WebSocket(ws_url);
@ -47,12 +57,7 @@ function spawnWebsocket() {
var data = JSON.parse(json);
if (data.msg !== undefined) {
document.getElementById('please-wait').remove();
var pbd = document.getElementById('pbd');
pbd.setAttribute('class', 'alert alert-danger');
pbd.setAttribute('role', 'alert');
pbd.innerHTML = '<p>'+data.msg+'</p>';
addAlert(data.msg);
} else {
var slice = JSON.parse(res.shift());
var percent = Math.round(100 * (data.part + 1)/data.total);
@ -60,23 +65,33 @@ function spawnWebsocket() {
pb.style.width = percent+'%';
pb.setAttribute('aria-valuenow', percent);
document.getElementById('pbt').innerHTML = percent+'%';
window.a.push(base64ToArrayBuffer(sjcl.decrypt(window.key, slice)));
if (data.part + 1 === data.total) {
var blob = new File(a, data.name, {type: data.type});
try {
var b64 = sjcl.decrypt(window.key, slice);
window.a.push(base64ToArrayBuffer(b64));
if (data.part + 1 === data.total) {
var blob = new File(a, data.name, {type: data.type});
document.getElementById('please-wait').remove();
document.getElementById('please-wait').remove();
var pbd = document.getElementById('pbd');
pbd.setAttribute('class', '');
pbd.innerHTML = '<a href="'+URL.createObjectURL(blob)+'" class="btn btn-primary" download="'+data.name+'">'+i18n.download+'</a>';
var pbd = document.getElementById('pbd');
pbd.setAttribute('class', '');
pbd.innerHTML = '<a href="'+URL.createObjectURL(blob)+'" class="btn btn-primary" download="'+data.name+'">'+i18n.download+'</a>';
ws.send('{"ended":true}');
window.onbeforeunload = null;
} else {
if (ws.readyState === 3) {
ws = spawnWebsocket();
ws.send('{"ended":true}');
window.onbeforeunload = null;
} else {
if (ws.readyState === 3) {
ws = spawnWebsocket();
}
ws.send('{"part":'+(data.part + 1)+'}');
}
ws.send('{"part":'+(data.part + 1)+'}');
} catch(err) {
if (err.message === 'ccm: tag doesn\'t match') {
addAlert(i18n.badkey);
} else {
addAlert(err.message);
}
window.onbeforeunload = null;
}
}
}
@ -89,9 +104,13 @@ document.addEventListener('DOMContentLoaded', function() {
window.a = new Array();
window.key = pageKey();
// Set websocket
ws = spawnWebsocket();
if (key !== '=') {
// Set websocket
ws = spawnWebsocket();
// Prevent exiting page before full download
window.onbeforeunload = confirmExit;
// Prevent exiting page before full download
window.onbeforeunload = confirmExit;
} else {
addAlert(i18n.nokey);
}
});

4
templates/render.html.ep
View File

@ -16,8 +16,10 @@
%= javascript begin
var ws_url = '<%= url_for('download')->to_abs() %>';
var i18n = {
download: '<%= l('Download') %>',
badkey: '<%= l('It seems that the key in your URL is incorrect. Please, verify your URL') %>',
confirmExit: '<%= l('You have attempted to leave this page. The download will be canceled. Are you sure?') %>',
download: '<%= l('Download') %>',
nokey: '<%= l('You don\'t seem to have a key in your URL. You won\'t be able to decrypt the file. Download canceled.') %>',
}
% end
%= javascript '/js/sjcl.js'