2017-12-03 10:48:22 +08:00
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"use strict";
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const sql = require('../../services/sql');
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2017-12-03 22:19:48 +08:00
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const html = require('html');
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2018-02-25 23:55:21 +08:00
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const tar = require('tar-stream');
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const sanitize = require("sanitize-filename");
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2018-03-31 21:07:58 +08:00
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const repository = require("../../services/repository");
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2018-05-28 00:26:34 +08:00
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const utils = require('../../services/utils');
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2018-09-03 05:39:10 +08:00
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const commonmark = require('commonmark');
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const TurndownService = require('turndown');
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2017-12-03 10:48:22 +08:00
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2018-03-31 03:34:07 +08:00
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async function exportNote(req, res) {
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2017-12-03 10:48:22 +08:00
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const noteId = req.params.noteId;
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2018-05-28 00:26:34 +08:00
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const format = req.params.format;
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2017-12-03 10:48:22 +08:00
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2018-03-25 09:39:15 +08:00
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const branchId = await sql.getValue('SELECT branchId FROM branches WHERE noteId = ?', [noteId]);
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2017-12-03 10:48:22 +08:00
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2018-05-28 00:26:34 +08:00
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if (format === 'tar') {
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await exportToTar(branchId, res);
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}
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else if (format === 'opml') {
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await exportToOpml(branchId, res);
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}
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2018-09-03 05:39:10 +08:00
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else if (format === 'markdown') {
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await exportToMarkdown(branchId, res);
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}
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2018-05-28 00:26:34 +08:00
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else {
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return [404, "Unrecognized export format " + format];
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}
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}
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function escapeXmlAttribute(text) {
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return text.replace(/&/g, '&')
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.replace(/</g, '<')
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.replace(/>/g, '>')
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.replace(/"/g, '"')
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.replace(/'/g, ''');
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}
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function prepareText(text) {
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const newLines = text.replace(/(<p[^>]*>|<br\s*\/?>)/g, '\n')
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.replace(/ /g, ' '); // nbsp isn't in XML standard (only HTML)
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const stripped = utils.stripTags(newLines);
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const escaped = escapeXmlAttribute(stripped);
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return escaped.replace(/\n/g, ' ');
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}
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async function exportToOpml(branchId, res) {
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const branch = await repository.getBranch(branchId);
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const note = await branch.getNote();
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const title = (branch.prefix ? (branch.prefix + ' - ') : '') + note.title;
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const sanitizedTitle = sanitize(title);
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async function exportNoteInner(branchId) {
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const branch = await repository.getBranch(branchId);
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const note = await branch.getNote();
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const title = (branch.prefix ? (branch.prefix + ' - ') : '') + note.title;
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const preparedTitle = prepareText(title);
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const preparedContent = prepareText(note.content);
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res.write(`<outline title="${preparedTitle}" text="${preparedContent}">\n`);
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for (const child of await note.getChildBranches()) {
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await exportNoteInner(child.branchId);
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}
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res.write('</outline>');
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}
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res.setHeader('Content-Disposition', 'file; filename="' + sanitizedTitle + '.opml"');
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res.setHeader('Content-Type', 'text/x-opml');
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res.write(`<?xml version="1.0" encoding="UTF-8"?>
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<opml version="1.0">
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<head>
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<title>Trilium export</title>
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</head>
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<body>`);
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await exportNoteInner(branchId);
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res.write(`</body>
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</opml>`);
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res.end();
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}
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async function exportToTar(branchId, res) {
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2018-02-25 23:55:21 +08:00
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const pack = tar.pack();
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2017-12-03 10:48:22 +08:00
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2018-04-09 01:14:30 +08:00
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const exportedNoteIds = [];
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const name = await exportNoteInner(branchId, '');
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async function exportNoteInner(branchId, directory) {
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const branch = await repository.getBranch(branchId);
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const note = await branch.getNote();
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const childFileName = directory + sanitize(note.title);
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if (exportedNoteIds.includes(note.noteId)) {
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saveMetadataFile(childFileName, {
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version: 1,
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clone: true,
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noteId: note.noteId,
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prefix: branch.prefix
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});
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return;
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}
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const metadata = {
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version: 1,
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clone: false,
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noteId: note.noteId,
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title: note.title,
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prefix: branch.prefix,
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type: note.type,
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mime: note.mime,
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2018-08-07 19:33:10 +08:00
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attributes: (await note.getOwnedAttributes()).map(attribute => {
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2018-04-09 01:14:30 +08:00
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return {
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2018-08-07 19:33:10 +08:00
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type: attribute.type,
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name: attribute.name,
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value: attribute.value,
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isInheritable: attribute.isInheritable,
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position: attribute.position
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2018-04-09 01:14:30 +08:00
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};
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})
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};
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2018-09-03 05:39:10 +08:00
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if (await note.hasLabel('excludeFromExport')) {
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2018-04-09 01:14:30 +08:00
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return;
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}
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saveMetadataFile(childFileName, metadata);
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saveDataFile(childFileName, note);
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exportedNoteIds.push(note.noteId);
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for (const child of await note.getChildBranches()) {
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await exportNoteInner(child.branchId, childFileName + "/");
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}
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return childFileName;
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2018-02-26 13:07:43 +08:00
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}
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2018-04-09 01:14:30 +08:00
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function saveDataFile(childFileName, note) {
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const content = note.type === 'text' ? html.prettyPrint(note.content, {indent_size: 2}) : note.content;
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2018-02-27 09:47:34 +08:00
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2018-04-09 01:14:30 +08:00
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pack.entry({name: childFileName + ".dat", size: content.length}, content);
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2018-02-27 09:47:34 +08:00
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}
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2017-12-03 10:48:22 +08:00
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2018-04-09 01:14:30 +08:00
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function saveMetadataFile(childFileName, metadata) {
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const metadataJson = JSON.stringify(metadata, null, '\t');
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2017-12-03 10:48:22 +08:00
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2018-04-09 01:14:30 +08:00
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pack.entry({name: childFileName + ".meta", size: metadataJson.length}, metadataJson);
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2017-12-03 10:48:22 +08:00
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}
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2018-02-25 23:55:21 +08:00
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2018-04-09 01:14:30 +08:00
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pack.finalize();
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2018-02-25 23:55:21 +08:00
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2018-04-09 01:14:30 +08:00
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res.setHeader('Content-Disposition', 'file; filename="' + name + '.tar"');
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res.setHeader('Content-Type', 'application/tar');
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pack.pipe(res);
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2017-12-03 10:48:22 +08:00
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}
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2018-09-03 05:39:10 +08:00
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async function exportToMarkdown(branchId, res) {
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const turndownService = new TurndownService();
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const pack = tar.pack();
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const name = await exportNoteInner(branchId, '');
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async function exportNoteInner(branchId, directory) {
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const branch = await repository.getBranch(branchId);
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const note = await branch.getNote();
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const childFileName = directory + sanitize(note.title);
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if (await note.hasLabel('excludeFromExport')) {
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return;
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}
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saveDataFile(childFileName, note);
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for (const child of await note.getChildBranches()) {
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await exportNoteInner(child.branchId, childFileName + "/");
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}
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return childFileName;
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}
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function saveDataFile(childFileName, note) {
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if (note.type !== 'text' && note.type !== 'code') {
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return;
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}
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if (note.content.trim().length === 0) {
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return;
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}
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let markdown;
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if (note.type === 'code') {
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markdown = '```\n' + note.content + "\n```";
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}
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else if (note.type === 'text') {
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markdown = turndownService.turndown(note.content);
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}
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else {
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// other note types are not supported
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return;
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}
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pack.entry({name: childFileName + ".md", size: markdown.length}, markdown);
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}
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pack.finalize();
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res.setHeader('Content-Disposition', 'file; filename="' + name + '.tar"');
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res.setHeader('Content-Type', 'application/tar');
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pack.pipe(res);
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}
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2018-03-31 03:34:07 +08:00
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module.exports = {
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exportNote
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};
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