123 lines
4.3 KiB
JavaScript
123 lines
4.3 KiB
JavaScript
const models = require('../../models')
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const logger = require('../../logger')
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const config = require('../../config')
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const errors = require('../../errors')
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const fs = require('fs')
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const shortId = require('shortid')
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const markdownpdf = require('markdown-pdf')
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const moment = require('moment')
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const querystring = require('querystring')
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exports.getInfo = function getInfo (req, res, note) {
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const body = note.content
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const extracted = models.Note.extractMeta(body)
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const markdown = extracted.markdown
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const meta = models.Note.parseMeta(extracted.meta)
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const createtime = note.createdAt
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const updatetime = note.lastchangeAt
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const title = models.Note.decodeTitle(note.title)
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const data = {
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title: meta.title || title,
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description: meta.description || (markdown ? models.Note.generateDescription(markdown) : null),
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viewcount: note.viewcount,
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createtime: createtime,
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updatetime: updatetime
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}
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res.set({
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'Access-Control-Allow-Origin': '*', // allow CORS as API
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'Access-Control-Allow-Headers': 'Range',
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'Access-Control-Expose-Headers': 'Cache-Control, Content-Encoding, Content-Range',
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'Cache-Control': 'private', // only cache by client
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'X-Robots-Tag': 'noindex, nofollow' // prevent crawling
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})
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res.send(data)
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}
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exports.createPDF = function createPDF (req, res, note) {
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const url = config.serverURL || 'http://' + req.get('host')
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const body = note.content
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const extracted = models.Note.extractMeta(body)
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let content = extracted.markdown
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const title = models.Note.decodeTitle(note.title)
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if (!fs.existsSync(config.tmpPath)) {
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fs.mkdirSync(config.tmpPath)
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}
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const path = config.tmpPath + '/' + Date.now() + '.pdf'
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content = content.replace(/\]\(\//g, '](' + url + '/')
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markdownpdf().from.string(content).to(path, function () {
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if (!fs.existsSync(path)) {
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logger.error('PDF seems to not be generated as expected. File doesn\'t exist: ' + path)
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return errors.errorInternalError(res)
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}
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const stream = fs.createReadStream(path)
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let filename = title
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// Be careful of special characters
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filename = encodeURIComponent(filename)
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// Ideally this should strip them
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res.setHeader('Content-disposition', 'attachment; filename="' + filename + '.pdf"')
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res.setHeader('Cache-Control', 'private')
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res.setHeader('Content-Type', 'application/pdf; charset=UTF-8')
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res.setHeader('X-Robots-Tag', 'noindex, nofollow') // prevent crawling
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stream.pipe(res)
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fs.unlinkSync(path)
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})
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}
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exports.createGist = function createGist (req, res, note) {
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const data = {
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client_id: config.github.clientID,
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redirect_uri: config.serverURL + '/auth/github/callback/' + models.Note.encodeNoteId(note.id) + '/gist',
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scope: 'gist',
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state: shortId.generate()
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}
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const query = querystring.stringify(data)
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res.redirect('https://github.com/login/oauth/authorize?' + query)
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}
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exports.getRevision = function getRevision (req, res, note) {
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const actionId = req.params.actionId
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if (actionId) {
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const time = moment(parseInt(actionId))
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if (time.isValid()) {
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models.Revision.getPatchedNoteRevisionByTime(note, time, function (err, content) {
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if (err) {
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logger.error(err)
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return errors.errorInternalError(res)
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}
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if (!content) {
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return errors.errorNotFound(res)
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}
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res.set({
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'Access-Control-Allow-Origin': '*', // allow CORS as API
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'Access-Control-Allow-Headers': 'Range',
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'Access-Control-Expose-Headers': 'Cache-Control, Content-Encoding, Content-Range',
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'Cache-Control': 'private', // only cache by client
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'X-Robots-Tag': 'noindex, nofollow' // prevent crawling
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})
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res.send(content)
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})
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} else {
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return errors.errorNotFound(res)
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}
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} else {
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models.Revision.getNoteRevisions(note, function (err, data) {
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if (err) {
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logger.error(err)
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return errors.errorInternalError(res)
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}
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const out = {
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revision: data
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}
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res.set({
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'Access-Control-Allow-Origin': '*', // allow CORS as API
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'Access-Control-Allow-Headers': 'Range',
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'Access-Control-Expose-Headers': 'Cache-Control, Content-Encoding, Content-Range',
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'Cache-Control': 'private', // only cache by client
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'X-Robots-Tag': 'noindex, nofollow' // prevent crawling
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})
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res.send(out)
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})
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}
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}
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