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
44 lines
1.2 KiB
JavaScript
44 lines
1.2 KiB
JavaScript
const Mode = require('./mode')
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function NumericData (data) {
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this.mode = Mode.NUMERIC
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this.data = data.toString()
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}
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NumericData.getBitsLength = function getBitsLength (length) {
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return 10 * Math.floor(length / 3) + ((length % 3) ? ((length % 3) * 3 + 1) : 0)
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}
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NumericData.prototype.getLength = function getLength () {
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return this.data.length
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}
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NumericData.prototype.getBitsLength = function getBitsLength () {
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return NumericData.getBitsLength(this.data.length)
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}
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NumericData.prototype.write = function write (bitBuffer) {
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let i, group, value
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// The input data string is divided into groups of three digits,
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// and each group is converted to its 10-bit binary equivalent.
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for (i = 0; i + 3 <= this.data.length; i += 3) {
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group = this.data.substr(i, 3)
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value = parseInt(group, 10)
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bitBuffer.put(value, 10)
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}
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// If the number of input digits is not an exact multiple of three,
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// the final one or two digits are converted to 4 or 7 bits respectively.
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const remainingNum = this.data.length - i
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if (remainingNum > 0) {
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group = this.data.substr(i)
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value = parseInt(group, 10)
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bitBuffer.put(value, remainingNum * 3 + 1)
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}
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}
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module.exports = NumericData
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