Kirill
73 lines
2.5 KiB
JavaScript
73 lines
2.5 KiB
JavaScript
// server/src/routes/uploads-resized.js
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import fs from 'node:fs'
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import path from 'node:path'
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import { findOriginalFile, getOrCreateResized, SUPPORTED_FORMATS, VALID_WIDTHS } from '../lib/image-resize.js'
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const CACHE_CONTROL_IMMUTABLE = 'public, max-age=31536000, immutable'
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const CACHE_CONTROL_SHORT = 'public, max-age=86400'
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/**
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* Register GET /uploads-resized/* route for on-demand image resizing.
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* Must be registered BEFORE fastify-static for /uploads/.
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*/
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export function registerUploadsResized(fastify) {
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fastify.get('/uploads-resized/*', async (request, reply) => {
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const rawPath = request.params['*']
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const url = new URL(request.url, 'http://localhost')
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const widthParam = url.searchParams.get('w')
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// Parse: [subdir/]filename.format
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const parts = rawPath.split('/')
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let filename, subdir = ''
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if (parts.length > 1) {
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subdir = parts.slice(0, -1).join('/') + '/'
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filename = parts[parts.length - 1]
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} else {
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filename = parts[0]
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}
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const dotIdx = filename.lastIndexOf('.')
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if (dotIdx === -1) {
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return reply.code(400).send({ error: 'Invalid request: no format specified' })
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}
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const uuid = filename.slice(0, dotIdx)
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const format = filename.slice(dotIdx + 1).toLowerCase()
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if (!SUPPORTED_FORMATS.has(format)) {
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return reply.code(400).send({ error: `Unsupported format: ${format}. Use avif or webp.` })
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}
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// Validate width
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let width = null
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if (widthParam) {
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const w = parseInt(widthParam, 10)
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if (!VALID_WIDTHS.includes(w)) {
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return reply.code(400).send({ error: `Invalid width: ${widthParam}. Use: ${VALID_WIDTHS.join(', ')}` })
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}
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width = w
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}
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// If no width requested, serve original with short cache
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if (!width) {
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const originalPath = await findOriginalFile(uuid, subdir || undefined)
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if (!originalPath) {
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return reply.code(404).send({ error: 'Image not found' })
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}
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reply.header('Cache-Control', CACHE_CONTROL_SHORT)
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reply.header('Content-Type', format === 'avif' ? 'image/avif' : 'image/webp')
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return reply.send(fs.createReadStream(originalPath))
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}
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const result = await getOrCreateResized(uuid, width, format, subdir || undefined)
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if (!result) {
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return reply.code(404).send({ error: 'Image not found' })
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}
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reply.header('Cache-Control', CACHE_CONTROL_IMMUTABLE)
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reply.header('Content-Type', format === 'avif' ? 'image/avif' : 'image/webp')
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return reply.send(fs.createReadStream(result.path))
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})
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}
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