119 lines
3.3 KiB
JavaScript
119 lines
3.3 KiB
JavaScript
import browser from "webextension-polyfill";
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export const NO_PERMISSIONS_REQUIRED = {
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replaceURL: true,
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};
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export const PERMISSION_NAMES = Object.fromEntries([
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["getPublicKey", "read your public key"],
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["getRelays", "read your list of preferred relays"],
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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 from peers"],
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]);
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function matchConditions(conditions, event) {
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if (conditions?.kinds) {
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if (event.kind in conditions.kinds) return true;
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else return false;
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}
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return true;
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}
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export async function getPermissionStatus(host, type, event) {
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const { policies } = await browser.storage.local.get("policies");
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const answers = [true, false];
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for (let i = 0; i < answers.length; i++) {
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const accept = answers[i];
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const { conditions } = policies?.[host]?.[accept]?.[type] || {};
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if (conditions) {
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if (type === "signEvent") {
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if (matchConditions(conditions, event)) {
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return accept; // may be true or false
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} else {
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// if this doesn't match we just continue so it will either match for the opposite answer (reject)
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// or it will end up returning undefined at the end
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// biome-ignore lint/correctness/noUnnecessaryContinue: <explanation>
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continue;
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}
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} else {
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return accept; // may be true or false
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}
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}
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}
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return undefined;
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}
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export async function updatePermission(host, type, accept, conditions) {
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const { policies = {} } = await browser.storage.local.get("policies");
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// if the new conditions is "match everything", override the previous
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if (Object.keys(conditions).length === 0) {
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conditions = {};
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} else {
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// if we already had a policy for this, merge the conditions
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const existingConditions = policies[host]?.[accept]?.[type]?.conditions;
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if (existingConditions) {
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if (existingConditions.kinds && conditions.kinds) {
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Object.keys(existingConditions.kinds).forEach((kind) => {
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conditions.kinds[kind] = true;
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});
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}
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}
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}
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// if we have a reverse policy (accept / reject) that is exactly equal to this, remove it
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const other = !accept;
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const reverse = policies?.[host]?.[other]?.[type];
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if (
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reverse &&
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JSON.stringify(reverse.conditions) === JSON.stringify(conditions)
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) {
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delete policies[host][other][type];
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}
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// insert our new policy
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policies[host] = policies[host] || {};
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policies[host][accept] = policies[host][accept] || {};
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policies[host][accept][type] = {
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conditions, // filter that must match the event (in case of signEvent)
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created_at: Math.round(Date.now() / 1000),
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};
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browser.storage.local.set({ policies });
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}
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export async function removePermissions(host, accept, type) {
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const { policies = {} } = await browser.storage.local.get("policies");
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delete policies[host]?.[accept]?.[type];
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browser.storage.local.set({ policies });
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}
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export async function showNotification(host, answer, type, params) {
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const ok = await browser.storage.local.get("notifications");
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if (ok) {
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const action = answer ? "allowed" : "denied";
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browser.notifications.create(undefined, {
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type: "basic",
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title: `${type} ${action} for ${host}`,
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message: JSON.stringify(
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params?.event
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? {
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kind: params.event.kind,
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content: params.event.content,
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tags: params.event.tags,
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}
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: params,
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null,
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2,
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),
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iconUrl: "icons/48x48.png",
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});
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}
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}
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