490 lines
14 KiB
JavaScript
490 lines
14 KiB
JavaScript
const Model = require('objection').Model
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const _ = require('lodash')
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const JSBinType = require('js-binary').Type
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const pageHelper = require('../helpers/page')
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const path = require('path')
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const fs = require('fs-extra')
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const yaml = require('js-yaml')
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const striptags = require('striptags')
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const emojiRegex = require('emoji-regex')
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/* global WIKI */
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const frontmatterRegex = {
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html: /^(<!-{2}(?:\n|\r)([\w\W]+?)(?:\n|\r)-{2}>)?(?:\n|\r)*([\w\W]*)*/,
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legacy: /^(<!-- TITLE: ?([\w\W]+?) -{2}>)?(?:\n|\r)?(<!-- SUBTITLE: ?([\w\W]+?) -{2}>)?(?:\n|\r)*([\w\W]*)*/i,
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markdown: /^(-{3}(?:\n|\r)([\w\W]+?)(?:\n|\r)-{3})?(?:\n|\r)*([\w\W]*)*/
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}
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const punctuationRegex = /[!,:;/\\_+\-=()&#@<>$~%^*[\]{}"'|]+|(\.\s)|(\s\.)/ig
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const htmlEntitiesRegex = /(&#[0-9]{3};)|(&#x[a-zA-Z0-9]{2};)/ig
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/**
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* Pages model
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*/
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module.exports = class Page extends Model {
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static get tableName() { return 'pages' }
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static get jsonSchema () {
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return {
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type: 'object',
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required: ['path', 'title'],
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properties: {
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id: {type: 'integer'},
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path: {type: 'string'},
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hash: {type: 'string'},
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title: {type: 'string'},
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description: {type: 'string'},
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isPublished: {type: 'boolean'},
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privateNS: {type: 'string'},
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publishStartDate: {type: 'string'},
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publishEndDate: {type: 'string'},
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content: {type: 'string'},
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contentType: {type: 'string'},
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createdAt: {type: 'string'},
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updatedAt: {type: 'string'}
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}
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}
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}
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static get relationMappings() {
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return {
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tags: {
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relation: Model.ManyToManyRelation,
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modelClass: require('./tags'),
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join: {
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from: 'pages.id',
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through: {
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from: 'pageTags.pageId',
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to: 'pageTags.tagId'
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},
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to: 'tags.id'
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}
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},
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links: {
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relation: Model.HasManyRelation,
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modelClass: require('./pageLinks'),
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join: {
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from: 'pages.id',
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to: 'pageLinks.pageId'
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}
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},
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author: {
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relation: Model.BelongsToOneRelation,
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modelClass: require('./users'),
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join: {
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from: 'pages.authorId',
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to: 'users.id'
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}
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},
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creator: {
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relation: Model.BelongsToOneRelation,
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modelClass: require('./users'),
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join: {
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from: 'pages.creatorId',
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to: 'users.id'
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}
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},
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editor: {
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relation: Model.BelongsToOneRelation,
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modelClass: require('./editors'),
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join: {
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from: 'pages.editorKey',
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to: 'editors.key'
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}
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},
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locale: {
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relation: Model.BelongsToOneRelation,
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modelClass: require('./locales'),
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join: {
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from: 'pages.localeCode',
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to: 'locales.code'
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}
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}
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}
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}
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$beforeUpdate() {
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this.updatedAt = new Date().toISOString()
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}
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$beforeInsert() {
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this.createdAt = new Date().toISOString()
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this.updatedAt = new Date().toISOString()
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}
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static get cacheSchema() {
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return new JSBinType({
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id: 'uint',
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authorId: 'uint',
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authorName: 'string',
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createdAt: 'string',
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creatorId: 'uint',
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creatorName: 'string',
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description: 'string',
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isPrivate: 'boolean',
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isPublished: 'boolean',
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publishEndDate: 'string',
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publishStartDate: 'string',
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render: 'string',
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tags: [
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{
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tag: 'string',
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title: 'string'
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}
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],
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title: 'string',
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toc: 'string',
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updatedAt: 'string'
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})
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}
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/**
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* Inject page metadata into contents
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*/
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injectMetadata () {
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return pageHelper.injectPageMetadata(this)
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}
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/**
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* Parse injected page metadata from raw content
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*
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* @param {String} raw Raw file contents
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* @param {String} contentType Content Type
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*/
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static parseMetadata (raw, contentType) {
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let result
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switch (contentType) {
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case 'markdown':
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result = frontmatterRegex.markdown.exec(raw)
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if (result[2]) {
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return {
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...yaml.safeLoad(result[2]),
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content: result[3]
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}
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} else {
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// Attempt legacy v1 format
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result = frontmatterRegex.legacy.exec(raw)
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if (result[2]) {
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return {
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title: result[2],
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description: result[4],
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content: result[5]
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}
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}
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}
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break
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case 'html':
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result = frontmatterRegex.html.exec(raw)
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if (result[2]) {
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return {
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...yaml.safeLoad(result[2]),
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content: result[3]
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}
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}
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break
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}
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return {
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content: raw
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}
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}
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static async createPage(opts) {
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const dupCheck = await WIKI.models.pages.query().select('id').where('localeCode', opts.locale).where('path', opts.path).first()
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if (dupCheck) {
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throw new WIKI.Error.PageDuplicateCreate()
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}
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if (!opts.content || _.trim(opts.content).length < 1) {
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throw new WIKI.Error.PageEmptyContent()
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}
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await WIKI.models.pages.query().insert({
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authorId: opts.authorId,
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content: opts.content,
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creatorId: opts.authorId,
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contentType: _.get(_.find(WIKI.data.editors, ['key', opts.editor]), `contentType`, 'text'),
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description: opts.description,
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editorKey: opts.editor,
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hash: pageHelper.generateHash({ path: opts.path, locale: opts.locale, privateNS: opts.isPrivate ? 'TODO' : '' }),
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isPrivate: opts.isPrivate,
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isPublished: opts.isPublished,
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localeCode: opts.locale,
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path: opts.path,
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publishEndDate: opts.publishEndDate || '',
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publishStartDate: opts.publishStartDate || '',
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title: opts.title,
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toc: '[]'
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})
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const page = await WIKI.models.pages.getPageFromDb({
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path: opts.path,
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locale: opts.locale,
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userId: opts.authorId,
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isPrivate: opts.isPrivate
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})
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// -> Save Tags
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if (opts.tags.length > 0) {
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await WIKI.models.tags.associateTags({ tags: opts.tags, page })
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}
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// -> Render page to HTML
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await WIKI.models.pages.renderPage(page)
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// -> Add to Search Index
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const pageContents = await WIKI.models.pages.query().findById(page.id).select('render')
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page.safeContent = WIKI.models.pages.cleanHTML(pageContents.render)
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await WIKI.data.searchEngine.created(page)
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// -> Add to Storage
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if (!opts.skipStorage) {
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await WIKI.models.storage.pageEvent({
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event: 'created',
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page
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})
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}
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return page
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}
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static async updatePage(opts) {
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const ogPage = await WIKI.models.pages.query().findById(opts.id)
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if (!ogPage) {
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throw new Error('Invalid Page Id')
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}
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if (!opts.content || _.trim(opts.content).length < 1) {
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throw new WIKI.Error.PageEmptyContent()
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}
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await WIKI.models.pageHistory.addVersion({
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...ogPage,
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isPublished: ogPage.isPublished === true || ogPage.isPublished === 1,
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action: 'updated'
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})
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await WIKI.models.pages.query().patch({
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authorId: opts.authorId,
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content: opts.content,
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description: opts.description,
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isPublished: opts.isPublished === true || opts.isPublished === 1,
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publishEndDate: opts.publishEndDate || '',
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publishStartDate: opts.publishStartDate || '',
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title: opts.title
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}).where('id', ogPage.id)
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const page = await WIKI.models.pages.getPageFromDb({
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path: ogPage.path,
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locale: ogPage.localeCode,
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userId: ogPage.authorId,
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isPrivate: ogPage.isPrivate
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})
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// -> Save Tags
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await WIKI.models.tags.associateTags({ tags: opts.tags, page })
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// -> Render page to HTML
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await WIKI.models.pages.renderPage(page)
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// -> Update Search Index
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const pageContents = await WIKI.models.pages.query().findById(page.id).select('render')
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page.safeContent = WIKI.models.pages.cleanHTML(pageContents.render)
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await WIKI.data.searchEngine.updated(page)
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// -> Update on Storage
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if (!opts.skipStorage) {
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await WIKI.models.storage.pageEvent({
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event: 'updated',
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page
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})
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}
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return page
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}
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static async deletePage(opts) {
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let page
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if (_.has(opts, 'id')) {
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page = await WIKI.models.pages.query().findById(opts.id)
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} else {
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page = await await WIKI.models.pages.query().findOne({
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path: opts.path,
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localeCode: opts.locale
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})
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}
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if (!page) {
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throw new Error('Invalid Page Id')
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}
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await WIKI.models.pageHistory.addVersion({
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...page,
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action: 'deleted'
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})
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await WIKI.models.pages.query().delete().where('id', page.id)
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await WIKI.models.pages.deletePageFromCache(page)
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// -> Delete from Search Index
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await WIKI.data.searchEngine.deleted(page)
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// -> Delete from Storage
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if (!opts.skipStorage) {
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await WIKI.models.storage.pageEvent({
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event: 'deleted',
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page
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})
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}
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}
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static async renderPage(page) {
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const renderJob = await WIKI.scheduler.registerJob({
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name: 'render-page',
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immediate: true,
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worker: true
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}, page.id)
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return renderJob.finished
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}
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static async getPage(opts) {
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// -> Get from cache first
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let page = await WIKI.models.pages.getPageFromCache(opts)
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if (!page) {
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// -> Get from DB
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page = await WIKI.models.pages.getPageFromDb(opts)
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if (page) {
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if (page.render) {
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// -> Save render to cache
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await WIKI.models.pages.savePageToCache(page)
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} else {
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// -> No render? Possible duplicate issue
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/* TODO: Detect duplicate and delete */
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throw new Error('Error while fetching page. Duplicate entry detected. Reload the page to try again.')
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}
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}
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}
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return page
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}
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static async getPageFromDb(opts) {
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const queryModeID = _.isNumber(opts)
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try {
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return WIKI.models.pages.query()
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.column([
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'pages.*',
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{
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authorName: 'author.name',
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authorEmail: 'author.email',
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creatorName: 'creator.name',
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creatorEmail: 'creator.email'
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}
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])
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.joinRelation('author')
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.joinRelation('creator')
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.eagerAlgorithm(Model.JoinEagerAlgorithm)
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.eager('tags(selectTags)', {
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selectTags: builder => {
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builder.select('tag', 'title')
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}
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})
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.where(queryModeID ? {
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'pages.id': opts
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} : {
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'pages.path': opts.path,
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'pages.localeCode': opts.locale
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})
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// .andWhere(builder => {
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// if (queryModeID) return
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// builder.where({
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// 'pages.isPublished': true
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// }).orWhere({
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// 'pages.isPublished': false,
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// 'pages.authorId': opts.userId
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// })
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// })
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// .andWhere(builder => {
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// if (queryModeID) return
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// if (opts.isPrivate) {
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// builder.where({ 'pages.isPrivate': true, 'pages.privateNS': opts.privateNS })
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// } else {
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// builder.where({ 'pages.isPrivate': false })
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// }
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// })
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.first()
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} catch (err) {
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WIKI.logger.warn(err)
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throw err
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}
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}
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static async savePageToCache(page) {
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const cachePath = path.join(process.cwd(), `data/cache/${page.hash}.bin`)
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await fs.outputFile(cachePath, WIKI.models.pages.cacheSchema.encode({
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id: page.id,
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authorId: page.authorId,
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authorName: page.authorName,
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createdAt: page.createdAt,
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creatorId: page.creatorId,
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creatorName: page.creatorName,
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description: page.description,
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isPrivate: page.isPrivate === 1 || page.isPrivate === true,
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isPublished: page.isPublished === 1 || page.isPublished === true,
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publishEndDate: page.publishEndDate,
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publishStartDate: page.publishStartDate,
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render: page.render,
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tags: page.tags.map(t => _.pick(t, ['tag', 'title'])),
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title: page.title,
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toc: _.isString(page.toc) ? page.toc : JSON.stringify(page.toc),
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updatedAt: page.updatedAt
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}))
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}
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static async getPageFromCache(opts) {
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const pageHash = pageHelper.generateHash({ path: opts.path, locale: opts.locale, privateNS: opts.isPrivate ? 'TODO' : '' })
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const cachePath = path.join(process.cwd(), `data/cache/${pageHash}.bin`)
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try {
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const pageBuffer = await fs.readFile(cachePath)
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let page = WIKI.models.pages.cacheSchema.decode(pageBuffer)
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return {
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...page,
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path: opts.path,
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localeCode: opts.locale,
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isPrivate: opts.isPrivate
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}
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} catch (err) {
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if (err.code === 'ENOENT') {
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return false
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}
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WIKI.logger.error(err)
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throw err
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}
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}
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static async deletePageFromCache(page) {
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return fs.remove(path.join(process.cwd(), `data/cache/${page.hash}.bin`))
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}
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static async flushCache() {
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return fs.emptyDir(path.join(process.cwd(), `data/cache`))
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}
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static async migrateToLocale({ sourceLocale, targetLocale }) {
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return WIKI.models.pages.query()
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.patch({
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localeCode: targetLocale
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})
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.where({
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localeCode: sourceLocale
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})
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.whereNotExists(function() {
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this.select('id').from('pages AS pagesm').where('pagesm.localeCode', targetLocale).andWhereRaw('pagesm.path = pages.path')
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})
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}
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static cleanHTML(rawHTML = '') {
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return striptags(rawHTML || '')
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.replace(emojiRegex(), '')
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.replace(htmlEntitiesRegex, '')
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.replace(punctuationRegex, ' ')
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.replace(/(\r\n|\n|\r)/gm, ' ')
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.replace(/\s\s+/g, ' ')
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.split(' ').filter(w => w.length > 1).join(' ').toLowerCase()
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}
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}
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