mirror of
https://github.com/laurent22/joplin.git
synced 2024-12-24 10:27:10 +02:00
495 lines
14 KiB
JavaScript
495 lines
14 KiB
JavaScript
const { uuid } = require('lib/uuid.js');
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const moment = require('moment');
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const BaseModel = require('lib/BaseModel.js');
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const Note = require('lib/models/Note.js');
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const Tag = require('lib/models/Tag.js');
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const Resource = require('lib/models/Resource.js');
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const Setting = require('lib/models/Setting.js');
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const { MarkupToHtml } = require('lib/joplin-renderer');
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const { enexXmlToMd } = require('./import-enex-md-gen.js');
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const { enexXmlToHtml } = require('./import-enex-html-gen.js');
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const { time } = require('lib/time-utils.js');
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const Levenshtein = require('levenshtein');
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const md5 = require('md5');
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const { Base64Decode } = require('base64-stream');
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const md5File = require('md5-file');
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// const Promise = require('promise');
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const fs = require('fs-extra');
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function dateToTimestamp(s, zeroIfInvalid = false) {
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// Most dates seem to be in this format
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let m = moment(s, 'YYYYMMDDTHHmmssZ');
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// But sometimes they might be in this format eg. 20180306T91108 AMZ
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// https://github.com/laurent22/joplin/issues/557
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if (!m.isValid()) m = moment(s, 'YYYYMMDDThmmss AZ');
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if (!m.isValid()) {
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if (zeroIfInvalid) return 0;
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throw new Error(`Invalid date: ${s}`);
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}
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return m.toDate().getTime();
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}
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function extractRecognitionObjId(recognitionXml) {
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const r = recognitionXml.match(/objID="(.*?)"/);
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return r && r.length >= 2 ? r[1] : null;
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}
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async function decodeBase64File(sourceFilePath, destFilePath) {
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return new Promise(function(resolve, reject) {
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// Note: we manually handle closing the file so that we can
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// force flusing it before close. This is needed because
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// "end" might be called before the file has been flushed
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// to disk, thus resulting in the calling code to find a
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// file with size 0.
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const destFile = fs.openSync(destFilePath, 'w');
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const sourceStream = fs.createReadStream(sourceFilePath);
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const destStream = fs.createWriteStream(destFile, {
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fd: destFile,
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autoClose: false,
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});
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sourceStream.pipe(new Base64Decode()).pipe(destStream);
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sourceStream.on('end', () => {
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fs.fdatasyncSync(destFile);
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fs.closeSync(destFile);
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resolve();
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});
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sourceStream.on('error', (error) => reject(error));
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});
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}
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async function md5FileAsync(filePath) {
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return new Promise((resolve, reject) => {
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md5File(filePath, (error, hash) => {
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if (error) {
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reject(error);
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return;
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}
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resolve(hash);
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});
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});
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}
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function removeUndefinedProperties(note) {
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const output = {};
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for (const n in note) {
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if (!note.hasOwnProperty(n)) continue;
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const v = note[n];
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if (v === undefined || v === null) continue;
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output[n] = v;
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}
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return output;
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}
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function levenshteinPercent(s1, s2) {
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const l = new Levenshtein(s1, s2);
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if (!s1.length || !s2.length) return 1;
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return Math.abs(l.distance / s1.length);
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}
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async function fuzzyMatch(note) {
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if (note.created_time < time.unixMs() - 1000 * 60 * 60 * 24 * 360) {
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const notes = await Note.modelSelectAll('SELECT * FROM notes WHERE is_conflict = 0 AND created_time = ? AND title = ?', [note.created_time, note.title]);
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return notes.length !== 1 ? null : notes[0];
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}
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const notes = await Note.modelSelectAll('SELECT * FROM notes WHERE is_conflict = 0 AND created_time = ?', [note.created_time]);
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if (notes.length === 0) return null;
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if (notes.length === 1) return notes[0];
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let lowestL = 1;
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let lowestN = null;
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for (let i = 0; i < notes.length; i++) {
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const n = notes[i];
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const l = levenshteinPercent(note.title, n.title);
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if (l < lowestL) {
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lowestL = l;
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lowestN = n;
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}
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}
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if (lowestN && lowestL < 0.2) return lowestN;
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return null;
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}
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// At this point we have the resource has it's been parsed from the XML, but additional
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// processing needs to be done to get the final resource file, its size, MD5, etc.
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async function processNoteResource(resource) {
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if (resource.dataEncoding == 'base64') {
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const decodedFilePath = `${resource.dataFilePath}.decoded`;
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await decodeBase64File(resource.dataFilePath, decodedFilePath);
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resource.dataFilePath = decodedFilePath;
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} else if (resource.dataEncoding) {
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throw new Error(`Cannot decode resource with encoding: ${resource.dataEncoding}`);
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}
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const stats = fs.statSync(resource.dataFilePath);
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resource.size = stats.size;
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if (!resource.id) {
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// If no resource ID is present, the resource ID is actually the MD5 of the data.
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// This ID will match the "hash" attribute of the corresponding <en-media> tag.
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// resourceId = md5(decodedData);
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resource.id = await md5FileAsync(resource.dataFilePath);
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}
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if (!resource.id || !resource.size) {
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const debugTemp = Object.assign({}, resource);
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debugTemp.data = debugTemp.data ? `${debugTemp.data.substr(0, 32)}...` : debugTemp.data;
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throw new Error(`This resource was not added because it has no ID or no content: ${JSON.stringify(debugTemp)}`);
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}
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return resource;
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}
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async function saveNoteResources(note, importOptions) {
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let resourcesCreated = 0;
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for (let i = 0; i < note.resources.length; i++) {
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let resource = note.resources[i];
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try {
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resource = await processNoteResource(resource);
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} catch (error) {
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importOptions.onError(error);
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continue;
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}
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const toSave = Object.assign({}, resource);
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delete toSave.dataFilePath;
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delete toSave.dataEncoding;
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// The same resource sometimes appear twice in the same enex (exact same ID and file).
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// In that case, just skip it - it means two different notes might be linked to the
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// same resource.
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const existingResource = await Resource.load(toSave.id);
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if (existingResource) continue;
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await fs.move(resource.dataFilePath, Resource.fullPath(toSave), { overwrite: true });
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await Resource.save(toSave, { isNew: true });
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resourcesCreated++;
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}
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return resourcesCreated;
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}
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async function saveNoteTags(note) {
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let notesTagged = 0;
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for (let i = 0; i < note.tags.length; i++) {
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const tagTitle = note.tags[i];
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let tag = await Tag.loadByTitle(tagTitle);
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if (!tag) tag = await Tag.save({ title: tagTitle });
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await Tag.addNote(tag.id, note.id);
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notesTagged++;
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}
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return notesTagged;
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}
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async function saveNoteToStorage(note, importOptions) {
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importOptions = Object.assign({}, {
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fuzzyMatching: false,
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}, importOptions);
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note = Note.filter(note);
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const existingNote = importOptions.fuzzyMatching ? await fuzzyMatch(note) : null;
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const result = {
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noteCreated: false,
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noteUpdated: false,
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noteSkipped: false,
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resourcesCreated: 0,
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notesTagged: 0,
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};
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const resourcesCreated = await saveNoteResources(note, importOptions);
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result.resourcesCreated += resourcesCreated;
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const notesTagged = await saveNoteTags(note);
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result.notesTagged += notesTagged;
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if (existingNote) {
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const diff = BaseModel.diffObjects(existingNote, note);
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delete diff.tags;
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delete diff.resources;
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delete diff.id;
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if (!Object.getOwnPropertyNames(diff).length) {
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result.noteSkipped = true;
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return result;
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}
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diff.id = existingNote.id;
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diff.type_ = existingNote.type_;
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await Note.save(diff, { autoTimestamp: false });
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result.noteUpdated = true;
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} else {
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await Note.save(note, {
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isNew: true,
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autoTimestamp: false,
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});
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result.noteCreated = true;
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}
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return result;
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}
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function importEnex(parentFolderId, filePath, importOptions = null) {
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if (!importOptions) importOptions = {};
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// console.info(JSON.stringify({importOptions}, null, 2));
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if (!('fuzzyMatching' in importOptions)) importOptions.fuzzyMatching = false;
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if (!('onProgress' in importOptions)) importOptions.onProgress = function() {};
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if (!('onError' in importOptions)) importOptions.onError = function() {};
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return new Promise((resolve, reject) => {
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const progressState = {
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loaded: 0,
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created: 0,
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updated: 0,
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skipped: 0,
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resourcesCreated: 0,
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notesTagged: 0,
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};
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const stream = fs.createReadStream(filePath);
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const options = {};
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const strict = true;
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const saxStream = require('sax').createStream(strict, options);
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const nodes = []; // LIFO list of nodes so that we know in which node we are in the onText event
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let note = null;
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let noteAttributes = null;
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let noteResource = null;
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let noteResourceAttributes = null;
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let noteResourceRecognition = null;
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const notes = [];
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let processingNotes = false;
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stream.on('error', error => {
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reject(new Error(error.toString()));
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});
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function currentNodeName() {
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if (!nodes.length) return null;
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return nodes[nodes.length - 1].name;
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}
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function currentNodeAttributes() {
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if (!nodes.length) return {};
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return nodes[nodes.length - 1].attributes;
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}
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async function processNotes() {
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if (processingNotes) return false;
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try {
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processingNotes = true;
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stream.pause();
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while (notes.length) {
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const note = notes.shift();
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const body = importOptions.outputFormat === 'html' ?
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await enexXmlToHtml(note.bodyXml, note.resources) :
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await enexXmlToMd(note.bodyXml, note.resources);
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delete note.bodyXml;
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note.markup_language = importOptions.outputFormat === 'html' ?
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MarkupToHtml.MARKUP_LANGUAGE_HTML :
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MarkupToHtml.MARKUP_LANGUAGE_MARKDOWN;
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// console.info('*************************************************************************');
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// console.info(body);
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// console.info('*************************************************************************');
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note.id = uuid.create();
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note.parent_id = parentFolderId;
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note.body = body;
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// Notes in enex files always have a created timestamp but not always an
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// updated timestamp (it the note has never been modified). For sync
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// we require an updated_time property, so set it to create_time in that case
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if (!note.updated_time) note.updated_time = note.created_time;
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const result = await saveNoteToStorage(note, importOptions);
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if (result.noteUpdated) {
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progressState.updated++;
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} else if (result.noteCreated) {
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progressState.created++;
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} else if (result.noteSkipped) {
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progressState.skipped++;
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}
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progressState.resourcesCreated += result.resourcesCreated;
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progressState.notesTagged += result.notesTagged;
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importOptions.onProgress(progressState);
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}
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} catch (error) {
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console.error(error);
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}
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stream.resume();
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processingNotes = false;
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return true;
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}
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saxStream.on('error', error => {
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importOptions.onError(error);
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});
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saxStream.on('text', function(text) {
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const n = currentNodeName();
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if (noteAttributes) {
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noteAttributes[n] = text;
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} else if (noteResourceAttributes) {
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noteResourceAttributes[n] = text;
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} else if (noteResource) {
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if (n == 'data') {
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if (!noteResource.dataEncoding) {
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const attr = currentNodeAttributes();
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noteResource.dataEncoding = attr.encoding;
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}
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if (!noteResource.dataFilePath) {
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noteResource.dataFilePath = `${Setting.value('tempDir')}/${md5(Date.now() + Math.random())}.base64`;
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}
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fs.appendFileSync(noteResource.dataFilePath, text);
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} else {
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if (!(n in noteResource)) noteResource[n] = '';
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noteResource[n] += text;
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}
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} else if (note) {
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if (n == 'title') {
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note.title = text;
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} else if (n == 'created') {
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note.created_time = dateToTimestamp(text);
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} else if (n == 'updated') {
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note.updated_time = dateToTimestamp(text);
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} else if (n == 'tag') {
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note.tags.push(text);
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} else if (n == 'note') {
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// Ignore - white space between the opening tag <note> and the first sub-tag
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} else if (n == 'content') {
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// Ignore - white space between the opening tag <content> and the <![CDATA[< block where the content actually is
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} else {
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console.warn(`Unsupported note tag: ${n}`);
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}
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}
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});
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saxStream.on('opentag', function(node) {
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const n = node.name.toLowerCase();
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nodes.push(node);
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if (n == 'note') {
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note = {
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resources: [],
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tags: [],
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};
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} else if (n == 'resource-attributes') {
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noteResourceAttributes = {};
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} else if (n == 'recognition') {
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if (noteResource) noteResourceRecognition = {};
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} else if (n == 'note-attributes') {
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noteAttributes = {};
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} else if (n == 'resource') {
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noteResource = {};
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}
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});
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saxStream.on('cdata', function(data) {
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const n = currentNodeName();
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if (noteResourceRecognition) {
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noteResourceRecognition.objID = extractRecognitionObjId(data);
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} else if (note) {
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if (n == 'content') {
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if ('bodyXml' in note) {
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note.bodyXml += data;
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} else {
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note.bodyXml = data;
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}
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}
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}
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});
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saxStream.on('closetag', async function(n) {
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nodes.pop();
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if (n == 'note') {
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note = removeUndefinedProperties(note);
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progressState.loaded++;
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importOptions.onProgress(progressState);
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notes.push(note);
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if (notes.length >= 10) {
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processNotes().catch(error => {
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importOptions.onError(error);
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});
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}
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note = null;
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} else if (n == 'recognition' && noteResource) {
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noteResource.id = noteResourceRecognition.objID;
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noteResourceRecognition = null;
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} else if (n == 'resource-attributes') {
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noteResource.filename = noteResourceAttributes['file-name'];
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if (noteResourceAttributes['source-url']) noteResource.sourceUrl = noteResourceAttributes['source-url'];
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noteResourceAttributes = null;
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} else if (n == 'note-attributes') {
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note.latitude = noteAttributes.latitude;
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note.longitude = noteAttributes.longitude;
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note.altitude = noteAttributes.altitude;
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note.author = noteAttributes.author;
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note.is_todo = noteAttributes['reminder-order'] !== '0' && !!noteAttributes['reminder-order'];
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note.todo_due = dateToTimestamp(noteAttributes['reminder-time'], true);
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note.todo_completed = dateToTimestamp(noteAttributes['reminder-done-time'], true);
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note.order = dateToTimestamp(noteAttributes['reminder-order'], true);
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note.source = noteAttributes.source ? `evernote.${noteAttributes.source}` : 'evernote';
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note.source_url = noteAttributes['source-url'] ? noteAttributes['source-url'] : '';
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noteAttributes = null;
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} else if (n == 'resource') {
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note.resources.push({
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id: noteResource.id,
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dataFilePath: noteResource.dataFilePath,
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dataEncoding: noteResource.dataEncoding,
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mime: noteResource.mime,
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title: noteResource.filename ? noteResource.filename : '',
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filename: noteResource.filename ? noteResource.filename : '',
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});
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noteResource = null;
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}
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});
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saxStream.on('end', function() {
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// Wait till there is no more notes to process.
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const iid = setInterval(() => {
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processNotes().then(allDone => {
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if (allDone) {
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clearTimeout(iid);
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resolve();
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}
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});
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}, 500);
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});
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stream.pipe(saxStream);
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});
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}
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module.exports = { importEnex };
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