100 lines
3.2 KiB
JavaScript
100 lines
3.2 KiB
JavaScript
const routes = require('express').Router()
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const path = require('path')
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const paths = require('./../controllers/pathsController')
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const utils = require('./../controllers/utilsController')
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const config = require('./../config')
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const db = require('knex')(config.database)
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routes.get('/a/:identifier', async (req, res, next) => {
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const identifier = req.params.identifier
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if (identifier === undefined)
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return res.status(401).json({
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success: false,
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description: 'No identifier provided.'
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})
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const album = await db.table('albums')
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.where({
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identifier,
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enabled: 1
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})
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.select('id', 'name', 'identifier', 'editedAt', 'download', 'public', 'description')
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.first()
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if (!album)
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return res.status(404).sendFile(path.join(paths.errorRoot, config.errorPages[404]))
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else if (album.public === 0)
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return res.status(403).json({
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success: false,
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description: 'This album is not available for public.'
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})
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const nojs = req.query.nojs !== undefined
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// Cache ID - we initialize a separate cache for No-JS version
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const cacheid = nojs ? `${album.id}-nojs` : album.id
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if (!utils.albumsCache[cacheid])
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utils.albumsCache[cacheid] = {
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cache: null,
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generating: false,
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// Cache will actually be deleted after the album has been updated,
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// so storing this timestamp may be redundant, but just in case.
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generatedAt: 0
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}
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if (!utils.albumsCache[cacheid].cache && utils.albumsCache[cacheid].generating)
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return res.json({
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success: false,
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description: 'This album is still generating its public page.'
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})
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else if ((album.editedAt < utils.albumsCache[cacheid].generatedAt) || utils.albumsCache[cacheid].generating)
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return res.send(utils.albumsCache[cacheid].cache)
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// Use current timestamp to make sure cache is invalidated
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// when an album is edited during this generation process.
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utils.albumsCache[cacheid].generating = true
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utils.albumsCache[cacheid].generatedAt = Math.floor(Date.now() / 1000)
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const files = await db.table('files')
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.select('name', 'size')
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.where('albumid', album.id)
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.orderBy('id', 'DESC')
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album.thumb = ''
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album.totalSize = 0
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for (const file of files) {
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album.totalSize += parseInt(file.size)
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file.extname = path.extname(file.name)
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if (utils.mayGenerateThumb(file.extname)) {
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file.thumb = `thumbs/${file.name.slice(0, -file.extname.length)}.png`
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// If thumbnail for album is still not set, set it to current file's full URL.
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// A potential improvement would be to let the user set a specific image as an album cover.
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if (!album.thumb) album.thumb = file.name
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}
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}
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album.description = album.description
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? album.description.replace(/\n/g, '<br>')
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: null
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album.downloadLink = album.download === 0
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? null
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: `api/album/zip/${album.identifier}?v=${album.editedAt}`
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album.url = `a/${album.identifier}`
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return res.render('album', { config, album, files, nojs }, (error, html) => {
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utils.albumsCache[cacheid].cache = error ? null : html
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utils.albumsCache[cacheid].generating = false
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// Express should already send error to the next handler
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if (error) return
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return res.send(utils.albumsCache[cacheid].cache)
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})
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})
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module.exports = routes
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