0f8399ec88
Replace CDN React/ReactDOM/Babel with local libs; remove Babel and inline scripts Build Tailwind locally, add safelist; switch to assets/tailwind.css Self-host Font Awesome and Inter (CSS + woff2); remove external font CDNs Implement strict CSP (no unsafe-inline/eval; scripts/styles/fonts from self) Extract inline handlers; move PWA scripts to external files Add local QR code generation (qrcode lib) and remove api.qrserver.com Improve SessionTypeSelector visual selection (highlighted background and ring) Keep PWA working with service worker and offline assets Refs: CSP hardening, offline-first, no external dependencies
79 lines
1.7 KiB
JavaScript
79 lines
1.7 KiB
JavaScript
const fs = require('fs')
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const PNG = require('pngjs').PNG
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const Utils = require('./utils')
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exports.render = function render (qrData, options) {
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const opts = Utils.getOptions(options)
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const pngOpts = opts.rendererOpts
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const size = Utils.getImageWidth(qrData.modules.size, opts)
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pngOpts.width = size
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pngOpts.height = size
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const pngImage = new PNG(pngOpts)
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Utils.qrToImageData(pngImage.data, qrData, opts)
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return pngImage
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}
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exports.renderToDataURL = function renderToDataURL (qrData, options, cb) {
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if (typeof cb === 'undefined') {
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cb = options
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options = undefined
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}
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exports.renderToBuffer(qrData, options, function (err, output) {
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if (err) cb(err)
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let url = 'data:image/png;base64,'
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url += output.toString('base64')
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cb(null, url)
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})
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}
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exports.renderToBuffer = function renderToBuffer (qrData, options, cb) {
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if (typeof cb === 'undefined') {
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cb = options
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options = undefined
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}
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const png = exports.render(qrData, options)
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const buffer = []
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png.on('error', cb)
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png.on('data', function (data) {
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buffer.push(data)
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})
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png.on('end', function () {
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cb(null, Buffer.concat(buffer))
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})
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png.pack()
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}
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exports.renderToFile = function renderToFile (path, qrData, options, cb) {
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if (typeof cb === 'undefined') {
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cb = options
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options = undefined
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}
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let called = false
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const done = (...args) => {
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if (called) return
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called = true
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cb.apply(null, args)
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}
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const stream = fs.createWriteStream(path)
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stream.on('error', done)
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stream.on('close', done)
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exports.renderToFileStream(stream, qrData, options)
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}
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exports.renderToFileStream = function renderToFileStream (stream, qrData, options) {
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const png = exports.render(qrData, options)
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png.pack().pipe(stream)
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}
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