import path from 'path' import sharp from 'sharp-lite' import fs from 'fs/promises' import { HttpError } from '../error.mjs' import * as security from './security.mjs' import * as formidable from './formidable.mjs' export default class MediaRoutes { constructor(opts = {}) { Object.assign(this, { security: opts.security || security, formidable: opts.formidable || formidable, sharp: opts.sharp || sharp, fs: opts.fs || fs, }) this.siteCache = new Map() this.collator = new Intl.Collator('is-IS', { numeric: false, sensitivity: 'accent' }) } init() { return fs.readdir('./public').then(folders => { return Promise.all(folders.map(folder => { return fs.readdir('./public/' + folder) .then(files => { return Promise.all(files.map(file => { return fs.stat(`./public/${folder}/${file}`) .then(function(stat) { return { filename: file, size: stat.size } }) })) }) .then(files => { this.siteCache.set(folder, files) }) .catch(function() {}) })) }) } filesCacheGet(site) { let files = this.siteCache.get(site) || [] return files.sort((a, b) => { return this.collator.compare(a.filename, b.filename) }) } filesCacheAdd(site, filename, size) { let arr = this.siteCache.get(site) if (!arr) { this.siteCache.set(site, arr = []) } let found = false for (let file of arr) { if (file.filename === filename) { found = true file.size = size break } } if (!found) { arr.push({ filename: filename, size: size }) } } filesCacheRemove(site, filename) { let arr = this.siteCache.get(site) if (!arr) return for (let i = 0; i < arr.length; i++) { if (arr[i].filename === filename) { arr.splice(i, 1) break } } } async listFiles(ctx) { let site = await this.security.verifyToken(ctx) ctx.body = this.filesCacheGet(site) } async listPublicFiles(ctx) { this.security.throwIfNotPublic(ctx.params.site) ctx.body = this.filesCacheGet(ctx.params.site) } async upload(ctx, noprefix = false) { let site = await this.security.verifyToken(ctx) ctx.state.site = site let result = await this.formidable.uploadFile(ctx, ctx.state.site, noprefix) ctx.log.info(`Uploaded ${result.filename}`) let stat = await this.fs.stat(`./public/${ctx.state.site}/${result.filename}`) this.filesCacheAdd(ctx.state.site, result.filename, stat.size) ctx.body = { filename: result.filename, path: `/${ctx.state.site}/${result.filename}` } } uploadNoPrefix(ctx) { return this.upload(ctx, true) } async resize(ctx) { await this.upload(ctx) this.security.verifyBody(ctx) let keys = Object.keys(ctx.req.body) let allowedOperations = [ 'trim', 'flatten', 'resize', 'blur', 'extend', ] await Promise.all(keys.map(key => { return Promise.resolve() .then(async () => { let item = ctx.req.body[key] let sharp = this.sharp(`./public/${ctx.state.site}/${ctx.body.filename}`) .rotate() for (let operation of allowedOperations) { if (item[operation] != null) { sharp = sharp[operation](item[operation]) } } sharp = sharp[item.format](item[item.format]) let target = ctx.body.filename if (path.extname(target).length > 0) { target = target.slice(0, -path.extname(target).length) } target += `_${key}.${item.format.replace('jpeg', 'jpg')}` if (item.out === 'base64') { let buffer = await sharp.toBuffer() ctx.body[key] = { base64: `data:image/${item.format};base64,` + buffer.toString('base64'), } return } await sharp.toFile(`./public/${ctx.state.site}/${target}`) let stat = await this.fs.stat(`./public/${ctx.state.site}/${target}`) this.filesCacheAdd(ctx.state.site, target, stat.size) ctx.body[key] = { filename: target, path: `/${ctx.state.site}/${target}`, } }).then( function() {}, function(err) { throw new HttpError(`Error processing ${key}: ${err.message}`, 422) } ) })) } async remove(ctx) { let site = await this.security.verifyToken(ctx) this.filesCacheRemove(site, ctx.params.filename) await this.fs.unlink(`./public/${site}/${ctx.params.filename}`) .catch(function(err) { throw new HttpError(`Error removing ${site}/${ctx.params.filename}: ${err.message}`, 422) }) ctx.status = 204 } }