alexveley
83 lines
2.2 KiB
JavaScript
83 lines
2.2 KiB
JavaScript
"use strict";
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const CLIENT_NAME_RE = /^[A-Za-z0-9._-]{1,64}$/;
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const TOKEN_PREFIX = "fab_";
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function nowIso() {
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return new Date().toISOString().replace(/\.\d{3}Z$/, "Z");
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}
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async function sha256Hex(text) {
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const buf = await crypto.subtle.digest("SHA-256", new TextEncoder().encode(text));
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return Array.from(new Uint8Array(buf), (b) => b.toString(16).padStart(2, "0")).join("");
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}
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function publicClient(row) {
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return {
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id: row.id,
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name: row.name,
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created: row.created,
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last_used: row.last_used || null,
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};
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}
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async function loadClients() {
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const data = await browser.storage.local.get("clients");
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return Array.isArray(data.clients) ? data.clients : [];
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}
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async function saveClients(clients) {
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await browser.storage.local.set({ clients });
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}
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async function listClients() {
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return (await loadClients()).map(publicClient);
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}
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async function createClient(name) {
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name = String(name || "").trim();
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if (!CLIENT_NAME_RE.test(name)) {
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throw new Error("Name must be 1–64 characters: A-Za-z0-9._-");
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}
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const clients = await loadClients();
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if (clients.some((row) => row.name === name)) {
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throw new Error("A client with that name already exists");
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}
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const raw = new Uint8Array(32);
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crypto.getRandomValues(raw);
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const token = TOKEN_PREFIX + Array.from(raw, (b) => b.toString(16).padStart(2, "0")).join("");
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const idBytes = new Uint8Array(16);
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crypto.getRandomValues(idBytes);
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const id = Array.from(idBytes, (b) => b.toString(16).padStart(2, "0")).join("");
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clients.push({
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id,
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name,
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token_hash: await sha256Hex(token),
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created: nowIso(),
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last_used: null,
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});
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await saveClients(clients);
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return { id, name, token };
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}
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async function revokeClient(id) {
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const clients = await loadClients();
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const next = clients.filter((row) => row.id !== id && row.name !== id);
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if (next.length === clients.length) {
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throw new Error("No such client");
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}
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await saveClients(next);
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return id;
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}
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async function findClientByTokenHash(tokenHash) {
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const clients = await loadClients();
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const row = clients.find((item) => item.token_hash === tokenHash);
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if (!row) {
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return null;
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}
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row.last_used = nowIso();
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await saveClients(clients);
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return publicClient(row);
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}
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