drop.chapril.org-firefoxsend/app/routes/download.js
2018-02-01 11:42:07 -08:00

61 lines
1.7 KiB
JavaScript

const preview = require('../pages/preview');
const download = require('../pages/download');
const notFound = require('../pages/notFound');
const downloadPassword = require('../templates/downloadPassword');
const downloadButton = require('../templates/downloadButton');
function hasFileInfo() {
return !!document.getElementById('dl-file');
}
function getFileInfoFromDOM() {
const el = document.getElementById('dl-file');
if (!el) {
return null;
}
return {
nonce: el.getAttribute('data-nonce'),
requiresPassword: !!+el.getAttribute('data-requires-password')
};
}
function createFileInfo(state) {
const metadata = getFileInfoFromDOM();
return {
id: state.params.id,
secretKey: state.params.key,
nonce: metadata.nonce,
requiresPassword: metadata.requiresPassword
};
}
module.exports = function(state, emit) {
if (!state.fileInfo) {
// This is a fresh page load
// We need to parse the file info from the server's html
if (!hasFileInfo()) {
return notFound(state, emit);
}
state.fileInfo = createFileInfo(state);
if (!state.fileInfo.requiresPassword) {
emit('getMetadata');
}
}
let pageAction = null; //default state: we don't have file metadata
if (state.transfer) {
const s = state.transfer.state;
if (['downloading', 'decrypting', 'complete'].indexOf(s) > -1) {
// Downloading is in progress
return download(state, emit);
}
// we have file metadata
pageAction = downloadButton(state, emit);
} else if (state.fileInfo.requiresPassword && !state.fileInfo.password) {
// we're waiting on the user for a valid password
pageAction = downloadPassword(state, emit);
}
return preview(state, pageAction);
};