mirror of
https://github.com/hedgedoc/hedgedoc.git
synced 2024-12-18 05:55:52 -05:00
672 lines
22 KiB
TypeScript
672 lines
22 KiB
TypeScript
import async from 'async'
|
|
import base64url from 'base64url'
|
|
import cheerio from 'cheerio'
|
|
// eslint-disable-next-line @typescript-eslint/camelcase
|
|
import { diff_match_patch, patch_obj } from 'diff-match-patch'
|
|
import fs from 'fs'
|
|
import LZString from 'lz-string'
|
|
import markdownIt from 'markdown-it'
|
|
import metaMarked from 'meta-marked'
|
|
import moment from 'moment'
|
|
import path from 'path'
|
|
import Sequelize from 'sequelize'
|
|
import {
|
|
AfterCreate,
|
|
AllowNull,
|
|
BeforeCreate,
|
|
BelongsTo,
|
|
Column,
|
|
DataType,
|
|
Default,
|
|
ForeignKey,
|
|
HasMany,
|
|
Model,
|
|
PrimaryKey,
|
|
Table,
|
|
Unique
|
|
} from 'sequelize-typescript'
|
|
|
|
import { generate as shortIdGenerate, isValid as shortIdIsValid } from 'shortid'
|
|
import S from 'string'
|
|
import { config } from '../config'
|
|
import { logger } from '../logger'
|
|
import ot from '../ot/index'
|
|
import { processData, stripNullByte } from '../utils/functions'
|
|
import { Author, Revision, User } from './index'
|
|
|
|
const md = markdownIt()
|
|
// eslint-disable-next-line new-cap
|
|
const dmp = new diff_match_patch()
|
|
|
|
// permission types
|
|
enum PermissionEnum {
|
|
freely = 'freely',
|
|
editable = 'editable',
|
|
limited = 'limited',
|
|
locked = 'locked',
|
|
protected = 'protected',
|
|
private = 'private'
|
|
}
|
|
|
|
export class OpengraphMetadata {
|
|
title: string | number
|
|
description: string | number
|
|
type: string
|
|
}
|
|
|
|
export class NoteMetadata {
|
|
title: string
|
|
description: string
|
|
robots: string
|
|
GA: string
|
|
disqus: string
|
|
slideOptions
|
|
opengraph: OpengraphMetadata
|
|
}
|
|
|
|
export type NoteAuthorship = [string, number, number, number, number]
|
|
|
|
@Table({ paranoid: false })
|
|
export class Note extends Model<Note> {
|
|
@PrimaryKey
|
|
@Default(Sequelize.UUIDV4)
|
|
@Column(DataType.UUID)
|
|
id: string
|
|
|
|
@AllowNull(false)
|
|
@Default(shortIdGenerate)
|
|
@Unique
|
|
@Column(DataType.STRING)
|
|
shortid: string
|
|
|
|
@Unique
|
|
@Column(DataType.STRING)
|
|
alias: string
|
|
|
|
@Column(DataType.ENUM({ values: Object.keys(PermissionEnum).map(k => PermissionEnum[k]) }))
|
|
permission: PermissionEnum
|
|
|
|
@AllowNull(false)
|
|
@Default(0)
|
|
@Column(DataType.INTEGER)
|
|
viewcount: number
|
|
|
|
// ToDo: use @UpdatedAt instead? (https://www.npmjs.com/package/sequelize-typescript#createdat--updatedat--deletedat)
|
|
@Column(DataType.DATE)
|
|
lastchangeAt: Date
|
|
|
|
// ToDo: use @UpdatedAt instead? (https://www.npmjs.com/package/sequelize-typescript#createdat--updatedat--deletedat)
|
|
@Column(DataType.DATE)
|
|
savedAt: Date
|
|
|
|
@ForeignKey(() => User)
|
|
@Column
|
|
ownerId: string
|
|
|
|
@BelongsTo(() => User, { foreignKey: 'ownerId', constraints: false, onDelete: 'CASCADE', hooks: true })
|
|
owner: User
|
|
|
|
@ForeignKey(() => User)
|
|
@Column
|
|
lastchangeuserId: string
|
|
|
|
@BelongsTo(() => User, { foreignKey: 'lastchangeuserId', constraints: false })
|
|
lastchangeuser: User
|
|
|
|
@HasMany(() => Revision, { foreignKey: 'noteId', constraints: false })
|
|
revisions: Revision[]
|
|
|
|
@HasMany(() => Author, { foreignKey: 'noteId', constraints: false })
|
|
authors: Author[]
|
|
|
|
@Column(DataType.TEXT)
|
|
get title (): string {
|
|
return this.getDataValue('title') ?? ''
|
|
}
|
|
|
|
set title (value: string) {
|
|
this.setDataValue('title', stripNullByte(value))
|
|
}
|
|
|
|
@Column(DataType.TEXT({ length: 'long' }))
|
|
get content (): string {
|
|
return this.getDataValue('content') ?? ''
|
|
}
|
|
|
|
set content (value: string) {
|
|
this.setDataValue('content', stripNullByte(value))
|
|
}
|
|
|
|
@Column(DataType.TEXT({ length: 'long' }))
|
|
get authorship (): NoteAuthorship[] {
|
|
return processData(this.getDataValue('authorship'), [], JSON.parse)
|
|
}
|
|
|
|
set authorship (value: NoteAuthorship[]) {
|
|
// Evil hack for TypeScript to accept saving a string in a NoteAuthorship DB-field
|
|
this.setDataValue('authorship', JSON.stringify(value) as unknown as NoteAuthorship[])
|
|
}
|
|
|
|
@BeforeCreate
|
|
static async defaultContentAndPermissions (note: Note): Promise<Note> {
|
|
return await new Promise(function (resolve) {
|
|
// if no content specified then use default note
|
|
if (!note.content) {
|
|
let filePath: string
|
|
if (!note.alias) {
|
|
filePath = config.defaultNotePath
|
|
} else {
|
|
filePath = path.join(config.docsPath, note.alias + '.md')
|
|
}
|
|
if (Note.checkFileExist(filePath)) {
|
|
const fsCreatedTime = moment(fs.statSync(filePath).ctime)
|
|
const body = fs.readFileSync(filePath, 'utf8')
|
|
note.title = Note.parseNoteTitle(body)
|
|
note.content = body
|
|
if (filePath !== config.defaultNotePath) {
|
|
note.createdAt = fsCreatedTime
|
|
}
|
|
}
|
|
}
|
|
// if no permission specified and have owner then give default permission in config, else default permission is freely
|
|
if (!note.permission) {
|
|
if (note.ownerId) {
|
|
// TODO: Might explode if the user-defined permission does not exist
|
|
note.permission = PermissionEnum[config.defaultPermission]
|
|
} else {
|
|
note.permission = PermissionEnum.freely
|
|
}
|
|
}
|
|
return resolve(note)
|
|
})
|
|
}
|
|
|
|
@AfterCreate
|
|
static saveRevision (note): Promise<Note> {
|
|
return new Promise(function (resolve, reject) {
|
|
Revision.saveNoteRevision(note, function (err, _) {
|
|
if (err) {
|
|
return reject(err)
|
|
}
|
|
return resolve(note)
|
|
})
|
|
})
|
|
}
|
|
|
|
static checkFileExist (filePath): boolean {
|
|
try {
|
|
return fs.statSync(filePath).isFile()
|
|
} catch (err) {
|
|
return false
|
|
}
|
|
}
|
|
|
|
static encodeNoteId (id): string {
|
|
// remove dashes in UUID and encode in url-safe base64
|
|
const str = id.replace(/-/g, '')
|
|
const hexStr = Buffer.from(str, 'hex')
|
|
return base64url.encode(hexStr)
|
|
}
|
|
|
|
static decodeNoteId (encodedId): string {
|
|
// decode from url-safe base64
|
|
const id: string = base64url.toBuffer(encodedId).toString('hex')
|
|
// add dashes between the UUID string parts
|
|
const idParts: string[] = []
|
|
idParts.push(id.substr(0, 8))
|
|
idParts.push(id.substr(8, 4))
|
|
idParts.push(id.substr(12, 4))
|
|
idParts.push(id.substr(16, 4))
|
|
idParts.push(id.substr(20, 12))
|
|
return idParts.join('-')
|
|
}
|
|
|
|
static checkNoteIdValid (id): boolean {
|
|
const uuidRegex = /^[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i
|
|
const result = id.match(uuidRegex)
|
|
return !!(result && result.length === 1)
|
|
}
|
|
|
|
static parseNoteId (noteId, callback): void {
|
|
async.series({
|
|
parseNoteIdByAlias: function (_callback) {
|
|
// try to parse note id by alias (e.g. doc)
|
|
Note.findOne({
|
|
where: {
|
|
alias: noteId
|
|
}
|
|
}).then(function (note) {
|
|
if (note) {
|
|
const filePath = path.join(config.docsPath, noteId + '.md')
|
|
if (Note.checkFileExist(filePath)) {
|
|
// if doc in filesystem have newer modified time than last change time
|
|
// then will update the doc in db
|
|
const fsModifiedTime = moment(fs.statSync(filePath).mtime)
|
|
const dbModifiedTime = moment(note.lastchangeAt || note.createdAt)
|
|
const body = fs.readFileSync(filePath, 'utf8')
|
|
const contentLength = body.length
|
|
const title = Note.parseNoteTitle(body)
|
|
if (fsModifiedTime.isAfter(dbModifiedTime) && note.content !== body) {
|
|
note.update({
|
|
title: title,
|
|
content: body,
|
|
lastchangeAt: fsModifiedTime
|
|
}).then(function (note) {
|
|
Revision.saveNoteRevision(note, function (err, revision) {
|
|
if (err) return _callback(err, null)
|
|
// update authorship on after making revision of docs
|
|
const patch = dmp.patch_fromText(revision.patch)
|
|
const operations = Note.transformPatchToOperations(patch, contentLength)
|
|
let authorship = note.authorship
|
|
for (let i = 0; i < operations.length; i++) {
|
|
authorship = Note.updateAuthorshipByOperation(operations[i], null, authorship)
|
|
}
|
|
note.update({
|
|
authorship: authorship
|
|
}).then(function (note) {
|
|
return callback(null, note.id)
|
|
}).catch(function (err) {
|
|
return _callback(err, null)
|
|
})
|
|
})
|
|
}).catch(function (err) {
|
|
return _callback(err, null)
|
|
})
|
|
} else {
|
|
return callback(null, note.id)
|
|
}
|
|
} else {
|
|
return callback(null, note.id)
|
|
}
|
|
} else {
|
|
const filePath = path.join(config.docsPath, noteId + '.md')
|
|
if (Note.checkFileExist(filePath)) {
|
|
Note.create({
|
|
alias: noteId,
|
|
owner: null,
|
|
permission: 'locked'
|
|
}).then(function (note) {
|
|
return callback(null, note.id)
|
|
}).catch(function (err) {
|
|
return _callback(err, null)
|
|
})
|
|
} else {
|
|
return _callback(null, null)
|
|
}
|
|
}
|
|
}).catch(function (err) {
|
|
return _callback(err, null)
|
|
})
|
|
},
|
|
// parse note id by LZString is deprecated, here for compability
|
|
parseNoteIdByLZString: function (_callback) {
|
|
// Calculate minimal string length for an UUID that is encoded
|
|
// base64 encoded and optimize comparsion by using -1
|
|
// this should make a lot of LZ-String parsing errors obsolete
|
|
// as we can assume that a nodeId that is 48 chars or longer is a
|
|
// noteID.
|
|
const base64UuidLength = ((4 * 36) / 3) - 1
|
|
if (!(noteId.length > base64UuidLength)) {
|
|
return _callback(null, null)
|
|
}
|
|
// try to parse note id by LZString Base64
|
|
try {
|
|
const id = LZString.decompressFromBase64(noteId)
|
|
if (id && Note.checkNoteIdValid(id)) {
|
|
return callback(null, id)
|
|
} else {
|
|
return _callback(null, null)
|
|
}
|
|
} catch (err) {
|
|
if (err.message === 'Cannot read property \'charAt\' of undefined') {
|
|
logger.warning('Looks like we can not decode "' + noteId + '" with LZString. Can be ignored.')
|
|
} else {
|
|
logger.error(err)
|
|
}
|
|
return _callback(null, null)
|
|
}
|
|
},
|
|
parseNoteIdByBase64Url: function (_callback) {
|
|
// try to parse note id by base64url
|
|
try {
|
|
const id = Note.decodeNoteId(noteId)
|
|
if (id && Note.checkNoteIdValid(id)) {
|
|
return callback(null, id)
|
|
} else {
|
|
return _callback(null, null)
|
|
}
|
|
} catch (err) {
|
|
logger.error(err)
|
|
return _callback(null, null)
|
|
}
|
|
},
|
|
parseNoteIdByShortId: function (_callback) {
|
|
// try to parse note id by shortId
|
|
try {
|
|
if (shortIdIsValid(noteId)) {
|
|
Note.findOne({
|
|
where: {
|
|
shortid: noteId
|
|
}
|
|
}).then(function (note) {
|
|
if (!note) return _callback(null, null)
|
|
return callback(null, note.id)
|
|
}).catch(function (err) {
|
|
return _callback(err, null)
|
|
})
|
|
} else {
|
|
return _callback(null, null)
|
|
}
|
|
} catch (err) {
|
|
return _callback(err, null)
|
|
}
|
|
}
|
|
}, function (err, _) {
|
|
if (err) {
|
|
logger.error(err)
|
|
return callback(err, null)
|
|
}
|
|
return callback(null, null)
|
|
})
|
|
}
|
|
|
|
static parseNoteTitle (body): string {
|
|
const parsed = Note.extractMeta(body)
|
|
const $ = cheerio.load(md.render(parsed.markdown))
|
|
return Note.extractNoteTitle(parsed.meta, $)
|
|
}
|
|
|
|
static extractNoteTitle (meta, $): string {
|
|
let title = ''
|
|
if (meta.title && (typeof meta.title === 'string' || typeof meta.title === 'number')) {
|
|
title = meta.title
|
|
} else {
|
|
const h1s = $('h1')
|
|
if (h1s.length > 0 && h1s.first().text().split('\n').length === 1) {
|
|
title = S(h1s.first().text()).stripTags().s
|
|
}
|
|
}
|
|
if (!title) title = 'Untitled'
|
|
return title
|
|
}
|
|
|
|
static generateDescription (markdown): string {
|
|
return markdown.substr(0, 100).replace(/(?:\r\n|\r|\n)/g, ' ')
|
|
}
|
|
|
|
static decodeTitle (title): string {
|
|
return title || 'Untitled'
|
|
}
|
|
|
|
static generateWebTitle (title): string {
|
|
title = !title || title === 'Untitled' ? 'CodiMD - Collaborative markdown notes' : title + ' - CodiMD'
|
|
return title
|
|
}
|
|
|
|
static extractNoteTags (meta, $): string[] {
|
|
const tags: string[] = []
|
|
const rawtags: string[] = []
|
|
if (meta.tags && (typeof meta.tags === 'string' || typeof meta.tags === 'number')) {
|
|
const metaTags = ('' + meta.tags).split(',')
|
|
for (let i = 0; i < metaTags.length; i++) {
|
|
const text: string = metaTags[i].trim()
|
|
if (text) rawtags.push(text)
|
|
}
|
|
} else {
|
|
const h6s = $('h6')
|
|
h6s.each(function (key, value) {
|
|
if (/^tags/gmi.test($(value).text())) {
|
|
const codes = $(value).find('code')
|
|
for (let i = 0; i < codes.length; i++) {
|
|
const text = S($(codes[i]).text().trim()).stripTags().s
|
|
if (text) rawtags.push(text)
|
|
}
|
|
}
|
|
})
|
|
}
|
|
for (let i = 0; i < rawtags.length; i++) {
|
|
let found = false
|
|
for (let j = 0; j < tags.length; j++) {
|
|
if (tags[j] === rawtags[i]) {
|
|
found = true
|
|
break
|
|
}
|
|
}
|
|
if (!found) {
|
|
tags.push(rawtags[i])
|
|
}
|
|
}
|
|
return tags
|
|
}
|
|
|
|
static extractMeta (content): { markdown: string; meta: {} } {
|
|
try {
|
|
const obj = metaMarked(content)
|
|
if (!obj.markdown) obj.markdown = ''
|
|
if (!obj.meta) obj.meta = {}
|
|
return obj
|
|
} catch (err) {
|
|
return {
|
|
markdown: content,
|
|
meta: {}
|
|
}
|
|
}
|
|
}
|
|
|
|
static parseMeta (meta): NoteMetadata {
|
|
const _meta = new NoteMetadata()
|
|
if (meta) {
|
|
if (meta.title && (typeof meta.title === 'string' || typeof meta.title === 'number')) {
|
|
_meta.title = meta.title
|
|
}
|
|
if (meta.description && (typeof meta.description === 'string' || typeof meta.description === 'number')) {
|
|
_meta.description = meta.description
|
|
}
|
|
if (meta.robots && (typeof meta.robots === 'string' || typeof meta.robots === 'number')) {
|
|
_meta.robots = meta.robots
|
|
}
|
|
if (meta.GA && (typeof meta.GA === 'string' || typeof meta.GA === 'number')) {
|
|
_meta.GA = meta.GA
|
|
}
|
|
if (meta.disqus && (typeof meta.disqus === 'string' || typeof meta.disqus === 'number')) {
|
|
_meta.disqus = meta.disqus
|
|
}
|
|
if (meta.slideOptions && (typeof meta.slideOptions === 'object')) {
|
|
_meta.slideOptions = meta.slideOptions
|
|
}
|
|
if (meta.opengraph && (typeof meta.opengraph === 'object')) {
|
|
_meta.opengraph = meta.opengraph
|
|
}
|
|
}
|
|
return _meta
|
|
}
|
|
|
|
static parseOpengraph (meta, title: string): OpengraphMetadata {
|
|
let _ogdata = new OpengraphMetadata()
|
|
if (meta.opengraph) {
|
|
_ogdata = meta.opengraph
|
|
}
|
|
if (!(_ogdata.title && (typeof _ogdata.title === 'string' || typeof _ogdata.title === 'number'))) {
|
|
_ogdata.title = title
|
|
}
|
|
if (!(_ogdata.description && (typeof _ogdata.description === 'string' || typeof _ogdata.description === 'number'))) {
|
|
_ogdata.description = meta.description || ''
|
|
}
|
|
if (!(_ogdata.type && (typeof _ogdata.type === 'string'))) {
|
|
_ogdata.type = 'website'
|
|
}
|
|
return _ogdata
|
|
}
|
|
|
|
static updateAuthorshipByOperation (operation, userId: string | null, authorships): NoteAuthorship[] {
|
|
let index = 0
|
|
const timestamp = Date.now()
|
|
for (let i = 0; i < operation.length; i++) {
|
|
const op = operation[i]
|
|
if (ot.TextOperation.isRetain(op)) {
|
|
index += op
|
|
} else if (ot.TextOperation.isInsert(op)) {
|
|
const opStart = index
|
|
const opEnd = index + op.length
|
|
let inserted = false
|
|
// authorship format: [userId, startPos, endPos, createdAt, updatedAt]
|
|
if (authorships.length <= 0) authorships.push([userId, opStart, opEnd, timestamp, timestamp])
|
|
else {
|
|
for (let j = 0; j < authorships.length; j++) {
|
|
const authorship = authorships[j]
|
|
if (!inserted) {
|
|
const nextAuthorship = authorships[j + 1] || -1
|
|
if ((nextAuthorship !== -1 && nextAuthorship[1] >= opEnd) || j >= authorships.length - 1) {
|
|
if (authorship[1] < opStart && authorship[2] > opStart) {
|
|
// divide
|
|
const postLength = authorship[2] - opStart
|
|
authorship[2] = opStart
|
|
authorship[4] = timestamp
|
|
authorships.splice(j + 1, 0, [userId, opStart, opEnd, timestamp, timestamp])
|
|
authorships.splice(j + 2, 0, [authorship[0], opEnd, opEnd + postLength, authorship[3], timestamp])
|
|
j += 2
|
|
inserted = true
|
|
} else if (authorship[1] >= opStart) {
|
|
authorships.splice(j, 0, [userId, opStart, opEnd, timestamp, timestamp])
|
|
j += 1
|
|
inserted = true
|
|
} else if (authorship[2] <= opStart) {
|
|
authorships.splice(j + 1, 0, [userId, opStart, opEnd, timestamp, timestamp])
|
|
j += 1
|
|
inserted = true
|
|
}
|
|
}
|
|
}
|
|
if (authorship[1] >= opStart) {
|
|
authorship[1] += op.length
|
|
authorship[2] += op.length
|
|
}
|
|
}
|
|
}
|
|
index += op.length
|
|
} else if (ot.TextOperation.isDelete(op)) {
|
|
const opStart = index
|
|
const opEnd = index - op
|
|
if (operation.length === 1) {
|
|
authorships = []
|
|
} else if (authorships.length > 0) {
|
|
for (let j = 0; j < authorships.length; j++) {
|
|
const authorship = authorships[j]
|
|
if (authorship[1] >= opStart && authorship[1] <= opEnd && authorship[2] >= opStart && authorship[2] <= opEnd) {
|
|
authorships.splice(j, 1)
|
|
j -= 1
|
|
} else if (authorship[1] < opStart && authorship[1] < opEnd && authorship[2] > opStart && authorship[2] > opEnd) {
|
|
authorship[2] += op
|
|
authorship[4] = timestamp
|
|
} else if (authorship[2] >= opStart && authorship[2] <= opEnd) {
|
|
authorship[2] = opStart
|
|
authorship[4] = timestamp
|
|
} else if (authorship[1] >= opStart && authorship[1] <= opEnd) {
|
|
authorship[1] = opEnd
|
|
authorship[4] = timestamp
|
|
}
|
|
if (authorship[1] >= opEnd) {
|
|
authorship[1] += op
|
|
authorship[2] += op
|
|
}
|
|
}
|
|
}
|
|
index += op
|
|
}
|
|
}
|
|
// merge
|
|
for (let j = 0; j < authorships.length; j++) {
|
|
const authorship = authorships[j]
|
|
for (let k = j + 1; k < authorships.length; k++) {
|
|
const nextAuthorship = authorships[k]
|
|
if (nextAuthorship && authorship[0] === nextAuthorship[0] && authorship[2] === nextAuthorship[1]) {
|
|
const minTimestamp = Math.min(authorship[3], nextAuthorship[3])
|
|
const maxTimestamp = Math.max(authorship[3], nextAuthorship[3])
|
|
authorships.splice(j, 1, [authorship[0], authorship[1], nextAuthorship[2], minTimestamp, maxTimestamp])
|
|
authorships.splice(k, 1)
|
|
j -= 1
|
|
break
|
|
}
|
|
}
|
|
}
|
|
// clear
|
|
for (let j = 0; j < authorships.length; j++) {
|
|
const authorship = authorships[j]
|
|
if (!authorship[0]) {
|
|
authorships.splice(j, 1)
|
|
j -= 1
|
|
}
|
|
}
|
|
return authorships
|
|
}
|
|
|
|
// eslint-disable-next-line @typescript-eslint/camelcase
|
|
static transformPatchToOperations (patch: patch_obj[], contentLength): number[][] {
|
|
const operations: number[][] = []
|
|
if (patch.length > 0) {
|
|
// calculate original content length
|
|
for (let j = patch.length - 1; j >= 0; j--) {
|
|
const p = patch[j]
|
|
for (let i = 0; i < p.diffs.length; i++) {
|
|
const diff = p.diffs[i]
|
|
switch (diff[0]) {
|
|
case 1: // insert
|
|
contentLength -= diff[1].length
|
|
break
|
|
case -1: // delete
|
|
contentLength += diff[1].length
|
|
break
|
|
}
|
|
}
|
|
}
|
|
// generate operations
|
|
let bias = 0
|
|
let lengthBias = 0
|
|
for (let j = 0; j < patch.length; j++) {
|
|
const operation: number[] = []
|
|
const p = patch[j]
|
|
let currIndex = p.start1 || 0
|
|
const currLength = contentLength - bias
|
|
for (let i = 0; i < p.diffs.length; i++) {
|
|
const diff = p.diffs[i]
|
|
switch (diff[0]) {
|
|
case 0: // retain
|
|
if (i === 0) {
|
|
// first
|
|
operation.push(currIndex + diff[1].length)
|
|
} else if (i !== p.diffs.length - 1) {
|
|
// mid
|
|
operation.push(diff[1].length)
|
|
} else {
|
|
// last
|
|
operation.push(currLength + lengthBias - currIndex)
|
|
}
|
|
currIndex += diff[1].length
|
|
break
|
|
case 1: // insert
|
|
operation.push(diff[1].length)
|
|
lengthBias += diff[1].length
|
|
currIndex += diff[1].length
|
|
break
|
|
case -1: // delete
|
|
operation.push(-diff[1].length)
|
|
bias += diff[1].length
|
|
currIndex += diff[1].length
|
|
break
|
|
}
|
|
}
|
|
operations.push(operation)
|
|
}
|
|
}
|
|
return operations
|
|
}
|
|
|
|
static parseNoteInfo (body): { title: string; tags: string[] } {
|
|
const parsed = Note.extractMeta(body)
|
|
const $ = cheerio.load(md.render(parsed.markdown))
|
|
return {
|
|
title: Note.extractNoteTitle(parsed.meta, $),
|
|
tags: Note.extractNoteTags(parsed.meta, $)
|
|
}
|
|
}
|
|
}
|