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59 lines
2 KiB
JavaScript
59 lines
2 KiB
JavaScript
const fs = require('fs')
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const path = require('path')
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const crypto = require('crypto')
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const mkdirp = require('mkdirp')
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const sharp = require('sharp')
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const log = require('../log')
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const config = require('../config')
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try {
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mkdirp.sync(config.upload_path + '/thumb')
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} catch (e) {}
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const DiskStorage = {
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_handleFile (req, file, cb) {
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const filename = crypto.randomBytes(16).toString('hex')
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const sharpStream = sharp({ failOnError: true })
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const promises = [
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sharpStream.clone().resize(500, null, { withoutEnlargement: true }).jpeg({ quality: 90, mozjpeg: true }).toFile(path.resolve(config.upload_path, 'thumb', filename + '.jpg')),
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sharpStream.clone().resize(500).webp({ quality: 90, alphaQuality: 0, effort: 6 }).toFile(path.resolve(config.upload_path, 'thumb', filename + '.webp')),
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sharpStream.clone().resize(1200, null, { withoutEnlargement: true } ).jpeg({ quality: 98, mozjpeg: true }).toFile(path.resolve(config.upload_path, filename + '.jpg')),
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sharpStream.clone().resize(1200).webp({ quality: 98, alphaQuality: 0, effor: 6 }).toFile(path.resolve(config.upload_path, filename + '.webp')),
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sharpStream.clone()
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.resize(6)
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.png({ quality: 20, palette: true, alphaQuality: 0, effort: 6})
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.toBuffer()
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.then(buffer => buffer.toString('base64'))
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]
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file.stream.pipe(sharpStream)
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Promise.all(promises)
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.then(res => {
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const info = res[2]
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const preview = res[4]
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console.error(preview)
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cb(null, {
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destination: config.upload_path,
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filename: filename + '.jpg',
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path: path.resolve(config.upload_path, filename + '.jpg'),
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height: info.height,
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width: info.width,
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size: info.size,
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preview
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})
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})
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.catch(err => {
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console.error(err)
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req.err = err
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cb(null)
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})
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},
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_removeFile (_req, file, cb) {
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delete file.destination
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delete file.filename
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fs.unlink(file.path, cb)
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delete file.path
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}
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}
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module.exports = DiskStorage
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