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