2411dffa2c
This refactors the configs a bit to now use camel case everywhere. This change should help to clean up the config interface and make it better understandable. Signed-off-by: Sheogorath <sheogorath@shivering-isles.com>
557 lines
20 KiB
JavaScript
557 lines
20 KiB
JavaScript
'use strict'
|
|
// external modules
|
|
var fs = require('fs')
|
|
var path = require('path')
|
|
var LZString = require('lz-string')
|
|
var base64url = require('base64url')
|
|
var md = require('markdown-it')()
|
|
var metaMarked = require('meta-marked')
|
|
var cheerio = require('cheerio')
|
|
var shortId = require('shortid')
|
|
var Sequelize = require('sequelize')
|
|
var async = require('async')
|
|
var moment = require('moment')
|
|
var DiffMatchPatch = require('diff-match-patch')
|
|
var dmp = new DiffMatchPatch()
|
|
var S = require('string')
|
|
|
|
// core
|
|
var config = require('../config')
|
|
var logger = require('../logger')
|
|
|
|
// ot
|
|
var ot = require('../ot')
|
|
|
|
// permission types
|
|
var permissionTypes = ['freely', 'editable', 'limited', 'locked', 'protected', 'private']
|
|
|
|
module.exports = function (sequelize, DataTypes) {
|
|
var Note = sequelize.define('Note', {
|
|
id: {
|
|
type: DataTypes.UUID,
|
|
primaryKey: true,
|
|
defaultValue: Sequelize.UUIDV4
|
|
},
|
|
shortid: {
|
|
type: DataTypes.STRING,
|
|
unique: true,
|
|
allowNull: false,
|
|
defaultValue: shortId.generate
|
|
},
|
|
alias: {
|
|
type: DataTypes.STRING,
|
|
unique: true
|
|
},
|
|
permission: {
|
|
type: DataTypes.ENUM,
|
|
values: permissionTypes
|
|
},
|
|
viewcount: {
|
|
type: DataTypes.INTEGER,
|
|
allowNull: false,
|
|
defaultValue: 0
|
|
},
|
|
title: {
|
|
type: DataTypes.TEXT,
|
|
get: function () {
|
|
return sequelize.processData(this.getDataValue('title'), '')
|
|
},
|
|
set: function (value) {
|
|
this.setDataValue('title', sequelize.stripNullByte(value))
|
|
}
|
|
},
|
|
content: {
|
|
type: DataTypes.TEXT('long'),
|
|
get: function () {
|
|
return sequelize.processData(this.getDataValue('content'), '')
|
|
},
|
|
set: function (value) {
|
|
this.setDataValue('content', sequelize.stripNullByte(value))
|
|
}
|
|
},
|
|
authorship: {
|
|
type: DataTypes.TEXT('long'),
|
|
get: function () {
|
|
return sequelize.processData(this.getDataValue('authorship'), [], JSON.parse)
|
|
},
|
|
set: function (value) {
|
|
this.setDataValue('authorship', JSON.stringify(value))
|
|
}
|
|
},
|
|
lastchangeAt: {
|
|
type: DataTypes.DATE
|
|
},
|
|
savedAt: {
|
|
type: DataTypes.DATE
|
|
}
|
|
}, {
|
|
paranoid: true,
|
|
classMethods: {
|
|
associate: function (models) {
|
|
Note.belongsTo(models.User, {
|
|
foreignKey: 'ownerId',
|
|
as: 'owner',
|
|
constraints: false
|
|
})
|
|
Note.belongsTo(models.User, {
|
|
foreignKey: 'lastchangeuserId',
|
|
as: 'lastchangeuser',
|
|
constraints: false
|
|
})
|
|
Note.hasMany(models.Revision, {
|
|
foreignKey: 'noteId',
|
|
constraints: false
|
|
})
|
|
Note.hasMany(models.Author, {
|
|
foreignKey: 'noteId',
|
|
as: 'authors',
|
|
constraints: false
|
|
})
|
|
},
|
|
checkFileExist: function (filePath) {
|
|
try {
|
|
return fs.statSync(filePath).isFile()
|
|
} catch (err) {
|
|
return false
|
|
}
|
|
},
|
|
encodeNoteId: function (id) {
|
|
// remove dashes in UUID and encode in url-safe base64
|
|
let str = id.replace(/-/g, '')
|
|
let hexStr = Buffer.from(str, 'hex')
|
|
return base64url.encode(hexStr)
|
|
},
|
|
decodeNoteId: function (encodedId) {
|
|
// decode from url-safe base64
|
|
let id = base64url.toBuffer(encodedId).toString('hex')
|
|
// add dashes between the UUID string parts
|
|
let idParts = []
|
|
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('-')
|
|
},
|
|
checkNoteIdValid: function (id) {
|
|
var 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
|
|
var result = id.match(uuidRegex)
|
|
if (result && result.length === 1) { return true } else { return false }
|
|
},
|
|
parseNoteId: function (noteId, callback) {
|
|
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) {
|
|
let 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
|
|
var fsModifiedTime = moment(fs.statSync(filePath).mtime)
|
|
var dbModifiedTime = moment(note.lastchangeAt || note.createdAt)
|
|
var body = fs.readFileSync(filePath, 'utf8')
|
|
var contentLength = body.length
|
|
var title = Note.parseNoteTitle(body)
|
|
if (fsModifiedTime.isAfter(dbModifiedTime) && note.content !== body) {
|
|
note.update({
|
|
title: title,
|
|
content: body,
|
|
lastchangeAt: fsModifiedTime
|
|
}).then(function (note) {
|
|
sequelize.models.Revision.saveNoteRevision(note, function (err, revision) {
|
|
if (err) return _callback(err, null)
|
|
// update authorship on after making revision of docs
|
|
var patch = dmp.patch_fromText(revision.patch)
|
|
var operations = Note.transformPatchToOperations(patch, contentLength)
|
|
var 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 {
|
|
var 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) {
|
|
// try to parse note id by LZString Base64
|
|
try {
|
|
var id = LZString.decompressFromBase64(noteId)
|
|
if (id && Note.checkNoteIdValid(id)) { return callback(null, id) } else { return _callback(null, null) }
|
|
} catch (err) {
|
|
logger.error(err)
|
|
return _callback(null, null)
|
|
}
|
|
},
|
|
parseNoteIdByBase64Url: function (_callback) {
|
|
// try to parse note id by base64url
|
|
try {
|
|
var 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 (shortId.isValid(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, result) {
|
|
if (err) {
|
|
logger.error(err)
|
|
return callback(err, null)
|
|
}
|
|
return callback(null, null)
|
|
})
|
|
},
|
|
parseNoteInfo: function (body) {
|
|
var parsed = Note.extractMeta(body)
|
|
var $ = cheerio.load(md.render(parsed.markdown))
|
|
return {
|
|
title: Note.extractNoteTitle(parsed.meta, $),
|
|
tags: Note.extractNoteTags(parsed.meta, $)
|
|
}
|
|
},
|
|
parseNoteTitle: function (body) {
|
|
var parsed = Note.extractMeta(body)
|
|
var $ = cheerio.load(md.render(parsed.markdown))
|
|
return Note.extractNoteTitle(parsed.meta, $)
|
|
},
|
|
extractNoteTitle: function (meta, $) {
|
|
var title = ''
|
|
if (meta.title && (typeof meta.title === 'string' || typeof meta.title === 'number')) {
|
|
title = meta.title
|
|
} else {
|
|
var 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
|
|
},
|
|
generateDescription: function (markdown) {
|
|
return markdown.substr(0, 100).replace(/(?:\r\n|\r|\n)/g, ' ')
|
|
},
|
|
decodeTitle: function (title) {
|
|
return title || 'Untitled'
|
|
},
|
|
generateWebTitle: function (title) {
|
|
title = !title || title === 'Untitled' ? 'HackMD - Collaborative markdown notes' : title + ' - HackMD'
|
|
return title
|
|
},
|
|
extractNoteTags: function (meta, $) {
|
|
var tags = []
|
|
var rawtags = []
|
|
if (meta.tags && (typeof meta.tags === 'string' || typeof meta.tags === 'number')) {
|
|
var metaTags = ('' + meta.tags).split(',')
|
|
for (let i = 0; i < metaTags.length; i++) {
|
|
var text = metaTags[i].trim()
|
|
if (text) rawtags.push(text)
|
|
}
|
|
} else {
|
|
var h6s = $('h6')
|
|
h6s.each(function (key, value) {
|
|
if (/^tags/gmi.test($(value).text())) {
|
|
var codes = $(value).find('code')
|
|
for (let i = 0; i < codes.length; i++) {
|
|
var text = S($(codes[i]).text().trim()).stripTags().s
|
|
if (text) rawtags.push(text)
|
|
}
|
|
}
|
|
})
|
|
}
|
|
for (let i = 0; i < rawtags.length; i++) {
|
|
var 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
|
|
},
|
|
extractMeta: function (content) {
|
|
var obj = null
|
|
try {
|
|
obj = metaMarked(content)
|
|
if (!obj.markdown) obj.markdown = ''
|
|
if (!obj.meta) obj.meta = {}
|
|
} catch (err) {
|
|
obj = {
|
|
markdown: content,
|
|
meta: {}
|
|
}
|
|
}
|
|
return obj
|
|
},
|
|
parseMeta: function (meta) {
|
|
var _meta = {}
|
|
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 }
|
|
}
|
|
return _meta
|
|
},
|
|
updateAuthorshipByOperation: function (operation, userId, authorships) {
|
|
var index = 0
|
|
var timestamp = Date.now()
|
|
for (let i = 0; i < operation.length; i++) {
|
|
var op = operation[i]
|
|
if (ot.TextOperation.isRetain(op)) {
|
|
index += op
|
|
} else if (ot.TextOperation.isInsert(op)) {
|
|
let opStart = index
|
|
let opEnd = index + op.length
|
|
var 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++) {
|
|
let authorship = authorships[j]
|
|
if (!inserted) {
|
|
let nextAuthorship = authorships[j + 1] || -1
|
|
if ((nextAuthorship !== -1 && nextAuthorship[1] >= opEnd) || j >= authorships.length - 1) {
|
|
if (authorship[1] < opStart && authorship[2] > opStart) {
|
|
// divide
|
|
let 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)) {
|
|
let opStart = index
|
|
let opEnd = index - op
|
|
if (operation.length === 1) {
|
|
authorships = []
|
|
} else if (authorships.length > 0) {
|
|
for (let j = 0; j < authorships.length; j++) {
|
|
let 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++) {
|
|
let authorship = authorships[j]
|
|
for (let k = j + 1; k < authorships.length; k++) {
|
|
let nextAuthorship = authorships[k]
|
|
if (nextAuthorship && authorship[0] === nextAuthorship[0] && authorship[2] === nextAuthorship[1]) {
|
|
let minTimestamp = Math.min(authorship[3], nextAuthorship[3])
|
|
let 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++) {
|
|
let authorship = authorships[j]
|
|
if (!authorship[0]) {
|
|
authorships.splice(j, 1)
|
|
j -= 1
|
|
}
|
|
}
|
|
return authorships
|
|
},
|
|
transformPatchToOperations: function (patch, contentLength) {
|
|
var operations = []
|
|
if (patch.length > 0) {
|
|
// calculate original content length
|
|
for (let j = patch.length - 1; j >= 0; j--) {
|
|
var p = patch[j]
|
|
for (let i = 0; i < p.diffs.length; i++) {
|
|
var 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
|
|
var bias = 0
|
|
var lengthBias = 0
|
|
for (let j = 0; j < patch.length; j++) {
|
|
var operation = []
|
|
let p = patch[j]
|
|
var currIndex = p.start1
|
|
var currLength = contentLength - bias
|
|
for (let i = 0; i < p.diffs.length; i++) {
|
|
let 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])
|
|
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
|
|
}
|
|
},
|
|
hooks: {
|
|
beforeCreate: function (note, options, callback) {
|
|
// if no content specified then use default note
|
|
if (!note.content) {
|
|
var body = null
|
|
let filePath = null
|
|
if (!note.alias) {
|
|
filePath = config.defaultNotePath
|
|
} else {
|
|
filePath = path.join(config.docsPath, note.alias + '.md')
|
|
}
|
|
if (Note.checkFileExist(filePath)) {
|
|
var fsCreatedTime = moment(fs.statSync(filePath).ctime)
|
|
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) {
|
|
note.permission = config.defaultPermission
|
|
} else {
|
|
note.permission = 'freely'
|
|
}
|
|
}
|
|
return callback(null, note)
|
|
},
|
|
afterCreate: function (note, options, callback) {
|
|
sequelize.models.Revision.saveNoteRevision(note, function (err, revision) {
|
|
callback(err, note)
|
|
})
|
|
}
|
|
}
|
|
})
|
|
|
|
return Note
|
|
}
|