84 lines
2.1 KiB
JavaScript
84 lines
2.1 KiB
JavaScript
import browser from 'webextension-polyfill'
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export const PERMISSIONS_REQUIRED = {
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getPublicKey: 1,
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signEvent: 10,
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'nip04.encrypt': 20,
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'nip04.decrypt': 20
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}
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const ORDERED_PERMISSIONS = [
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[1, ['getPublicKey']],
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[10, ['signEvent']],
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[20, ['nip04.encrypt']],
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[20, ['nip04.decrypt']]
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]
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const PERMISSION_NAMES = {
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getPublicKey: 'read your public key',
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signEvent: 'sign events using your private key',
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'nip04.encrypt': 'encrypt messages to peers',
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'nip04.decrypt': 'decrypt messages to peers'
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}
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export function getAllowedCapabilities(permission) {
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let requestedMethods = []
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for (let i = 0; i < ORDERED_PERMISSIONS.length; i++) {
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let [perm, methods] = ORDERED_PERMISSIONS[i]
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if (perm > permission) break
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requestedMethods = requestedMethods.concat(methods)
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}
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if (requestedMethods.length === 0) return 'nothing'
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return requestedMethods.map(method => PERMISSION_NAMES[method])
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}
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export function getPermissionsString(permission) {
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let capabilities = getAllowedCapabilities(permission)
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if (capabilities.length === 0) return 'none'
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if (capabilities.length === 1) return capabilities[0]
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return (
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capabilities.slice(0, -1).join(', ') +
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' and ' +
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capabilities[capabilities.length - 1]
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)
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}
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export async function readPermissions() {
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let {permissions = {}} = await browser.storage.local.get('permissions')
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// delete expired
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var needsUpdate = false
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for (let host in permissions) {
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if (
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permissions[host].condition === 'expirable' &&
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permissions[host].created_at < Date.now() / 1000 - 5 * 60
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) {
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delete permissions[host]
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needsUpdate = true
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}
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}
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if (needsUpdate) browser.storage.local.set({permissions})
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return permissions
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}
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export async function readPermissionLevel(host) {
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return (await readPermissions())[host]?.level || 0
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}
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export async function updatePermission(host, permission) {
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browser.storage.local.set({
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permissions: {
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...((await browser.storage.local.get('permissions').permissions) || {}),
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[host]: {
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...permission,
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created_at: Math.round(Date.now() / 1000)
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}
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}
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})
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}
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