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
72 lines
1.5 KiB
JavaScript
72 lines
1.5 KiB
JavaScript
const Utils = require('./utils')
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const BLOCK_CHAR = {
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WW: ' ',
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WB: '▄',
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BB: '█',
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BW: '▀'
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}
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const INVERTED_BLOCK_CHAR = {
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BB: ' ',
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BW: '▄',
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WW: '█',
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WB: '▀'
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}
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function getBlockChar (top, bottom, blocks) {
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if (top && bottom) return blocks.BB
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if (top && !bottom) return blocks.BW
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if (!top && bottom) return blocks.WB
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return blocks.WW
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}
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exports.render = function (qrData, options, cb) {
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const opts = Utils.getOptions(options)
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let blocks = BLOCK_CHAR
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if (opts.color.dark.hex === '#ffffff' || opts.color.light.hex === '#000000') {
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blocks = INVERTED_BLOCK_CHAR
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}
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const size = qrData.modules.size
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const data = qrData.modules.data
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let output = ''
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let hMargin = Array(size + (opts.margin * 2) + 1).join(blocks.WW)
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hMargin = Array((opts.margin / 2) + 1).join(hMargin + '\n')
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const vMargin = Array(opts.margin + 1).join(blocks.WW)
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output += hMargin
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for (let i = 0; i < size; i += 2) {
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output += vMargin
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for (let j = 0; j < size; j++) {
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const topModule = data[i * size + j]
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const bottomModule = data[(i + 1) * size + j]
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output += getBlockChar(topModule, bottomModule, blocks)
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}
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output += vMargin + '\n'
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}
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output += hMargin.slice(0, -1)
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if (typeof cb === 'function') {
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cb(null, output)
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}
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return output
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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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const fs = require('fs')
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const utf8 = exports.render(qrData, options)
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fs.writeFile(path, utf8, cb)
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}
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