Keysat
48 lines
1.6 KiB
TypeScript
48 lines
1.6 KiB
TypeScript
// Runtime helper: "Is this install licensed?" — call from `main.ts` before
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// you start your app's main process, so the app can refuse to boot (or boot
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// in a reduced-functionality trial mode) when no valid key is present.
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//
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// This never touches the network — only the signature. The offline check is
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// what you want at startup: nothing on the internet should be able to keep
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// the buyer's app from starting if the key is legitimate.
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import { Verifier, PublicKey, type VerifyOk } from '@keysat/licensing-client'
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import { ISSUER_PUBKEY_PEM, PRODUCT_SLUG } from './config'
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export interface LicenseGateResult {
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licensed: boolean
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/** Populated if licensed === true. */
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details?: VerifyOk
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/** Populated if licensed === false. Human-readable. */
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reason?: string
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}
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/**
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* Check the license key stored in the package store. Pure offline — runs in
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* a few milliseconds.
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*
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* Typical usage in main.ts:
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*
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* const gate = checkLicenseGate(await sdk.store.getOwn(effects, sdk.StorePath).const())
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* if (!gate.licensed) {
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* // options: exit, or inject a "trial mode" env var into your daemon
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* }
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*/
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export function checkLicenseGate(store: {
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license_key?: string | null
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}): LicenseGateResult {
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const key = store.license_key
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if (!key) return { licensed: false, reason: 'no license key stored' }
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try {
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const ok = new Verifier(PublicKey.fromPem(ISSUER_PUBKEY_PEM)).verify(key)
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return { licensed: true, details: ok }
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} catch (e) {
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return {
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licensed: false,
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reason: e instanceof Error ? e.message : 'verification failed',
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}
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}
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}
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export { PRODUCT_SLUG }
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