messages.ts

1/**2 * messages.ts — the only background message handler.3 *4 * All `chrome.runtime.onMessage` handling for the service worker lives here.5 * Do not handle messages inline in entry.ts, alarms.ts, or any other6 * background file. Every background-bound MessageType in shared/types.ts7 * must have a case below. Content-script-bound message types (PING,8 * SUMMON_AUTOFILL, VAULT_LOCKED) are documented in shared/types.ts and9 * intentionally have no case here — they are sent *to* content scripts.10 */1112import { copyToClipboard } from "./clipboard";13import { setupAutoLock, touchAutoLock } from "./alarms";14import * as vault from "./vault";15import {16  activateLicense,17  deactivateLicense,18  getLicenseInfo,19  getLicenseKey,20  isProUser,21  markCelebrationPlayed,22  shouldPlayCelebration,23} from "./license";24import {25  cancelFirefoxPasskeyCreate,26  completeFirefoxPasskeyCreate,27  getPasskeyProviderState,28  getPendingPasskeyRequest,29  handleFirefoxPasskeyCreate,30  handleFirefoxPasskeyGet,31  handlePasskeyHasCredentials,32  initiateFirefoxPasskeyCreate,33  isPasskeyOfferDeclined,34  recordPasskeyOfferDecline,35  resolvePendingPasskeyRequest,36  setPasskeyProviderEnabled,37} from "./passkey";38import { buildAdvancedHealthReport, resolveResetUrl } from "./health";39import type {40  Message,41  MessageResponse,42  MessageType,43  ProFeature,44} from "../shared/types";45import { isPasskeyOnly } from "../shared/types";46import type { SyncStatus } from "../shared/sync-types";4748/**49 * The single Pro gate. Every gated handler calls this first; the broadcast50 * lets the popup react (navigate to the License section, highlight the51 * relevant feature). Background never touches the popup view directly —52 * the popup owns navigation. See Projects.md "Pro gate rule".53 */54async function requirePro(55  feature: ProFeature,56  trigger: "user" | "background" = "user"57): Promise<{ allowed: boolean }> {58  if (await isProUser()) return { allowed: true };5960  if (trigger === "user") {61    // User deliberately triggered this feature — redirect the popup immediately.62    chrome.runtime63      .sendMessage({ type: "PRO_GATE_TRIGGERED", payload: { feature } })64      .catch(() => {65        // Popup may be closed — the gate signal is best-effort.66      });67  } else {68    // Background trigger (e.g. passive sync initiation) — no popup is open.69    // Queue a notice so the next popup open shows a soft banner instead of70    // silently failing.71    if (chrome.storage.session) {72      chrome.storage.session73        .set({ pendingProNotice: { feature, triggeredAt: Date.now() } })74        .catch(() => {});75    }76  }7778  return { allowed: false };79}8081const PRIVATE_IPV4_RANGES = [82  { prefix: "10." },83  { prefix: "127." },84  { prefix: "169.254." },85  { prefix: "192.168." },86];8788// Empty disables network submission while the UI continues to function as a89// no-op (the handler returns ok:true without calling fetch). When set, the90// URL is validated by `isAllowedCanaryWebhookUrl` before any request, so the91// same private-IP/HTTPS rules that gate canary webhooks apply here.92const FEEDBACK_ENDPOINT = "";9394export function setupMessageHandler(): void {95  chrome.runtime.onMessage.addListener(96    (msg: unknown, sender, sendResponse) => {97      if (!isMessage(msg)) {98        sendResponse({ ok: false, error: "invalid message" });99        return true;100      }101      handleMessage(msg, sender)102        .then(sendResponse)103        .catch((err) =>104          sendResponse({105            ok: false,106            error: err instanceof Error ? err.message : String(err),107          })108        );109      return true;110    }111  );112}113114function isMessage(m: unknown): m is Message {115  return typeof m === "object" && m !== null && "type" in m;116}117118async function handleMessage(119  msg: Message,120  sender: chrome.runtime.MessageSender121): Promise<MessageResponse> {122  try {123    // Validate sender — only allow messages from our extension pages/scripts.124    // `sender.id` is undefined for messages originating from extension UI125    // (popup/options), which is legitimate; reject only when it is defined126    // and does not match our extension id.127    if (sender.id !== undefined && sender.id !== chrome.runtime.id) {128      return { ok: false, error: "invalid sender" };129    }130131    if (shouldRefreshAutoLock(msg.type) && vault.isUnlocked()) {132      touchAutoLock();133    }134135    switch (msg.type) {136      case "CREATE_VAULT": {137        const { password } = msg.payload as { password: string };138        await vault.createVault(password);139        await setupAutoLock();140        broadcastToContentScripts({ type: "VAULT_UNLOCKED" });141        return { ok: true };142      }143      case "UNLOCK": {144        const { password } = msg.payload as { password: string };145        const ok = await vault.unlock(password);146        if (ok) {147          await setupAutoLock();148          broadcastToContentScripts({ type: "VAULT_UNLOCKED" });149        }150        return { ok };151      }152      case "LOCK":153        vault.lock();154        return { ok: true };155      case "IS_UNLOCKED":156        return { ok: true, data: vault.isUnlocked() };157      case "GET_VAULT_STATUS":158        return { ok: true, unlocked: vault.isUnlocked() };159      case "HAS_VAULT":160        return { ok: true, data: await vault.hasVault() };161      case "GET_ENTRIES":162        return { ok: true, data: vault.getEntries() };163      case "ADD_ENTRY": {164        if (!vault.isUnlocked()) return { ok: false, error: "vault locked" };165        const entry = await vault.addEntry(msg.payload as any);166        return { ok: true, data: entry };167      }168      case "BATCH_ADD_ENTRIES": {169        const { entries } = msg.payload as { entries: any[] };170        const added = await vault.batchAddEntries(entries);171        return { ok: true, data: added };172      }173      case "RESTORE_ENTRIES": {174        const { entries, mode, settings } = msg.payload as {175          entries: any[];176          mode: "replace" | "merge";177          settings?: vault.VaultSettings;178        };179        const summary = await vault.restoreEntries(entries, mode);180        if (settings && typeof settings === "object") {181          await vault.updateSettings(settings);182        }183        return { ok: true, data: summary };184      }185      case "CLEAR_VAULT_ENTRIES": {186        await vault.clearVaultEntries("REPLACE_ALL");187        return { ok: true };188      }189      case "LIST_VAULT_SNAPSHOTS": {190        const snapshots = await vault.listSnapshots();191        return { ok: true, data: snapshots };192      }193      case "RESTORE_VAULT_SNAPSHOT": {194        const { index, password } = msg.payload as { index: number; password: string };195        const ok = await vault.restoreFromSnapshot(index, password);196        if (ok) broadcastToContentScripts({ type: "VAULT_UNLOCKED" });197        return { ok };198      }199      case "COUNT_DUPLICATES": {200        return { ok: true, data: vault.countDuplicates() };201      }202      case "DEDUPLICATE_ENTRIES": {203        const removed = await vault.deduplicateEntries();204        return { ok: true, data: removed };205      }206      case "UPDATE_ENTRY": {207        const { id, patch } = msg.payload as any;208        await vault.updateEntry(id, patch);209        return { ok: true };210      }211      case "ADD_ADDITIONAL_URL": {212        const { id, url } = msg.payload as { id: string; url: string };213        const trimmed = typeof url === "string" ? url.trim() : "";214        if (!trimmed) return { ok: false, error: "url required" };215        const existing = vault.getEntryById(id);216        if (!existing) return { ok: false, error: "entry not found" };217        if (existing.type !== "login") return { ok: false, error: "login entries only" };218        const merged = [...(existing.additionalUrls ?? []), trimmed];219        await vault.updateEntry(id, { additionalUrls: merged });220        return { ok: true };221      }222      case "DELETE_ENTRY": {223        const { id } = msg.payload as { id: string };224        await vault.deleteEntry(id);225        return { ok: true };226      }227      case "GET_DELETED_ENTRIES":228        return { ok: true, data: vault.getDeletedEntries() };229      case "RESTORE_ENTRY": {230        const { id } = msg.payload as { id: string };231        await vault.restoreEntry(id);232        return { ok: true };233      }234      case "PURGE_ENTRY": {235        const { id } = msg.payload as { id: string };236        await vault.purgeEntry(id);237        return { ok: true };238      }239      case "PURGE_EXPIRED_TRASH": {240        const { retentionMs } = msg.payload as { retentionMs: number };241        const purged = await vault.purgeExpiredTrash(retentionMs);242        return { ok: true, data: purged };243      }244      case "AUTOFILL_QUERY": {245        if (!vault.isUnlocked()) {246          return { ok: false, error: "VAULT_LOCKED" };247        }248        const { domain, includeAll, kind } = msg.payload as {249          domain: string;250          includeAll?: boolean;251          kind?: "login" | "card";252        };253        // kind="card": return saved cards as compact summaries for the254        // inline card silver platter. Cards are not domain-scoped — every255        // saved card is a candidate on every checkout page — so domain is256        // ignored when kind === "card".257        if (kind === "card") {258          const cards = vault.getEntries().filter((e) => e.type === "card");259          return {260            ok: true,261            data: cards.map((e) => ({262              id: e.id,263              title: e.cardNickname || e.title,264              cardholderName: e.cardholderName,265              last4: e.last4,266              expMonth: e.expMonth,267              expYear: e.expYear,268              network: e.network,269            })),270          };271        }272        // The inline selector fills username+password into a form. Passkey-273        // only entries have no password to fill; sign-in for those goes274        // through the WebAuthn path instead. Filter them out everywhere so275        // the user doesn't see four "GitHub" rows that mostly do nothing.276        // Notes and cards never belonged here either.277        const matches = (278          includeAll279            ? vault280                .getEntries()281                .filter((entry) => entry.type !== "note" && entry.type !== "card")282            : vault.queryDomain(domain)283        ).filter((entry) => !isPasskeyOnly(entry));284        return {285          ok: true,286          data: matches.map((e) =>287            includeAll288              ? {289                  id: e.id,290                  title: e.title,291                  hasPasskey: e.passkey !== undefined,292                }293              : {294                  id: e.id,295                  title: e.title,296                  username: e.username,297                  url: e.url,298                  hasTotp: Boolean(e.totp),299                  hasPasskey: e.passkey !== undefined,300                }301          ),302        };303      }304      case "GET_ENTRY_FOR_FILL": {305        if (!vault.isUnlocked()) return { ok: false, error: "vault locked" };306        const { id } = msg.payload as { id: string };307        const entry = vault.getEntryById(id);308        if (!entry) return { ok: false, error: "entry not found" };309        // Passkey-only entries (passkey credential, no password) cannot be310        // filled into a form — sign-in goes through the WebAuthn path. A311        // login that ALSO has a passkey is still fillable for its password.312        if (isPasskeyOnly(entry)) return { ok: false, error: "passkey not fillable" };313        // Strip the passkey credential from the response — content scripts314        // never need the private key, and there's no reason to expose the315        // public credential metadata over the boundary either.316        const { passkey: _strippedPasskey, ...safeEntry } = entry;317        return { ok: true, data: safeEntry };318      }319      case "COPY": {320        const { text, label, alreadyWritten } = msg.payload as {321          text: string;322          label: string;323          alreadyWritten?: boolean;324        };325        await copyToClipboard(text, label, Boolean(alreadyWritten));326        return { ok: true };327      }328      case "CHECK_BREACH": {329        const { password } = msg.payload as { password: string };330        const count = await vault.checkBreach(password);331        return { ok: true, data: count };332      }333      case "CHECK_ALL_BREACHES": {334        const allEntries = vault.getEntries();335        const results: Record<string, number> = {};336        for (const entry of allEntries) {337          if (entry.type === "note") continue;338          if (!entry.password) continue;339          results[entry.id] = await vault.checkBreach(entry.password);340          // Small delay — be a good citizen to the HIBP API341          await new Promise((r) => setTimeout(r, 200));342        }343        // Persist any non-zero counts back to entries344        for (const [id, count] of Object.entries(results)) {345          const entry = vault.getEntryById(id);346          if (entry && (entry.breach ?? 0) !== count) {347            await vault.updateEntry(id, { breach: count > 0 ? count : undefined });348          }349        }350        return { ok: true, data: results };351      }352      case "GET_SETTINGS":353        return { ok: true, data: await vault.ensureSettingsLoaded() };354      case "UPDATE_SETTINGS": {355        const patch = msg.payload as Record<string, unknown>;356        await vault.updateSettings(patch as any);357        if (typeof patch.autoLockMinutes === "number") {358          await setupAutoLock();359          if (vault.isUnlocked()) touchAutoLock();360        }361        return { ok: true };362      }363      case "GET_PENDING_PASSKEY":364        return { ok: true, data: await getPendingPasskeyRequest() };365      case "APPROVE_PASSKEY": {366        const { requestId } = msg.payload as { requestId: number };367        await resolvePendingPasskeyRequest(requestId, true);368        return { ok: true };369      }370      case "DENY_PASSKEY": {371        const { requestId } = msg.payload as { requestId: number };372        await resolvePendingPasskeyRequest(requestId, false);373        return { ok: true };374      }375      case "GET_PASSKEYS":376        return {377          ok: true,378          data: vault.getEntries().filter((entry) => entry.passkey !== undefined),379        };380      case "DELETE_PASSKEY": {381        const { id } = msg.payload as { id: string };382        await vault.deleteEntry(id);383        return { ok: true };384      }385      case "GET_PASSKEY_PROVIDER_STATE":386        return { ok: true, data: await getPasskeyProviderState() };387      case "SET_PASSKEY_PROVIDER_ENABLED": {388        const { enabled } = msg.payload as { enabled: boolean };389        // Disabling is always free; gating fires only when a free user is390        // trying to turn passkey interception on.391        if (enabled) {392          const gate = await requirePro("passkeys");393          if (!gate.allowed) return { ok: false, error: "pro_required" };394        }395        return { ok: true, data: await setPasskeyProviderEnabled(enabled) };396      }397      case "FIRE_CANARY_PING": {398        const { webhookUrl, entryTitle, trigger } = msg.payload as {399          webhookUrl: string;400          entryTitle: string;401          trigger: "password_copied" | "username_copied" | "autofilled" | "submitted" | "test";402        };403        if (!isAllowedCanaryWebhookUrl(webhookUrl)) {404          return { ok: false, error: "invalid webhook url" };405        }406        const body = JSON.stringify({407          event: trigger === "test" ? "peach_canary_test" : "peach_canary_accessed",408          entry: entryTitle,409          trigger,410          timestamp: new Date().toISOString(),411          source: "peach-extension",412        });413        if (trigger === "test") {414          // Permitted outbound fetch: user-configured canary alert endpoint415          // (validated by isAllowedCanaryWebhookUrl above). This is the416          // only non-HIBP outbound call in the extension — see417          // Projects.md §3.7. Test pings are awaited so the UI can show418          // success/failure.419          try {420            const res = await fetch(webhookUrl, {421              method: "POST",422              headers: { "Content-Type": "application/json" },423              body,424            });425            return { ok: res.ok, error: res.ok ? undefined : `HTTP ${res.status}` };426          } catch (err) {427            return { ok: false, error: err instanceof Error ? err.message : "network error" };428          }429        }430        // Non-test triggers are fire-and-forget431        fetch(webhookUrl, {432          method: "POST",433          headers: { "Content-Type": "application/json" },434          body,435        }).catch(() => {});436        return { ok: true };437      }438      case "ACTIVATE_LICENSE": {439        const { key } = msg.payload as { key: string };440        const licenseInfo = await activateLicense(key);441        return { ok: true, data: licenseInfo };442      }443      case "GET_LICENSE": {444        const licenseInfo = await getLicenseInfo();445        return { ok: true, data: licenseInfo };446      }447      case "GET_LICENSE_KEY": {448        const key = await getLicenseKey();449        return { ok: true, data: key };450      }451      case "DEACTIVATE_LICENSE": {452        await deactivateLicense();453        return { ok: true };454      }455      case "SHOULD_PLAY_CELEBRATION": {456        const should = await shouldPlayCelebration();457        return { ok: true, data: should };458      }459      case "MARK_CELEBRATION_PLAYED": {460        await markCelebrationPlayed();461        return { ok: true };462      }463      case "OPEN_PRO_GATE": {464        // Content script requests: open popup and navigate to License section.465        const { feature } = (msg.payload ?? {}) as { feature?: string };466        if (chrome.storage.session) {467          await chrome.storage.session.set({ pendingProGate: { feature: feature ?? "passkeys" } });468        }469        try { await chrome.action.openPopup(); } catch { /* badge fallback */ }470        return { ok: true };471      }472      case "GET_IDENTITIES": {473        if (!vault.isUnlocked()) return { ok: false, error: "vault locked" };474        return { ok: true, data: vault.getIdentities() };475      }476      case "GET_ADVANCED_HEALTH_REPORT": {477        const gate = await requirePro("advanced_health");478        if (!gate.allowed) return { ok: false, error: "pro_required" };479        if (!vault.isUnlocked()) return { ok: false, error: "vault locked" };480        const report = await buildAdvancedHealthReport(vault.getEntries());481        return { ok: true, data: report };482      }483      case "INITIATE_PASSWORD_CHANGE": {484        const gate = await requirePro("smart_password_change");485        if (!gate.allowed) return { ok: false, error: "pro_required" };486        if (!vault.isUnlocked()) return { ok: false, error: "vault locked" };487        const { id } = msg.payload as { id: string };488        const entry = vault.getEntryById(id);489        if (!entry) return { ok: false, error: "entry not found" };490        const url = resolveResetUrl(entry);491        if (!url) return { ok: false, error: "no reset url" };492        try {493          await chrome.tabs.create({ url });494          return { ok: true, data: { url } };495        } catch (err) {496          return {497            ok: false,498            error: err instanceof Error ? err.message : "failed to open tab",499          };500        }501      }502      case "IS_DURESS_ENABLED": {503        const enabled = await vault.isDuressEnabled();504        return { ok: true, data: enabled };505      }506      case "SETUP_DURESS": {507        const { duressPassword } = msg.payload as { duressPassword: string };508        await vault.setupDuress(duressPassword);509        return { ok: true };510      }511      case "DISABLE_DURESS": {512        await vault.disableDuress();513        return { ok: true };514      }515      case "VERIFY_MAIN_PASSWORD": {516        const { password } = msg.payload as { password: string };517        const ok = await vault.verifyMainPassword(password);518        return { ok: true, data: ok };519      }520      case "CHANGE_PASSWORD": {521        const { currentPassword, newPassword } = msg.payload as {522          currentPassword: string;523          newPassword: string;524        };525        const changed = await vault.changePassword(currentPassword, newPassword);526        return changed527          ? { ok: true }528          : { ok: false, error: "incorrect current password" };529      }530      case "GET_SITE_PASSWORD_POLICY": {531        const [tab] = await chrome.tabs.query({ active: true, currentWindow: true });532        if (!tab?.id) return { ok: true, data: null };533        try {534          const response = await chrome.tabs.sendMessage(tab.id, {535            type: "GET_SITE_PASSWORD_POLICY",536          });537          return (response as MessageResponse) ?? { ok: true, data: null };538        } catch {539          return { ok: true, data: null };540        }541      }542      case "GET_SYNC_STATE": {543        const { getPairedDevices, getTrustedNetworks } = await import('./sync-storage');544        const { isOnTailscale } = await import('./sync-network');545        const { isProUser } = await import('./license');546        const pairedDevices = await getPairedDevices();547        const trustedNetworks = await getTrustedNetworks();548        const tailscale = await isOnTailscale();549        const pro = await isProUser();550        551        let status: SyncStatus = "offline";552        if (tailscale || trustedNetworks.some((n: { isTailscale?: boolean }) => !n.isTailscale)) {553          if (pairedDevices.length === 0) {554            status = "no_peers";555          } else {556            status = "synced";557          }558        } else {559          status = "not_trusted";560        }561        562        return { ok: true, data: { pairedDevices, trustedNetworks, status, isPro: pro } };563      }564      case "TRIGGER_SYNC": {565        const gate = await requirePro("sync");566        if (!gate.allowed) return { ok: false, error: "pro_required" };567        return { ok: true };568      }569      case "START_PAIRING": {570        const gate = await requirePro("sync");571        if (!gate.allowed) return { ok: false, error: "pro_required" };572        return { ok: true };573      }574      case "CANCEL_PAIRING": {575        return { ok: true };576      }577      case "ACCEPT_PAIRING": {578        const gate = await requirePro("sync");579        if (!gate.allowed) return { ok: false, error: "pro_required" };580        return { ok: true };581      }582      case "REMOVE_PAIRED_DEVICE": {583        const { deviceId } = msg.payload as { deviceId: string };584        const { removePairedDevice } = await import('./sync-storage');585        await removePairedDevice(deviceId);586        return { ok: true };587      }588      case "REMOVE_TRUSTED_NETWORK": {589        const { ssid, bssid, isTailscale } = msg.payload as any;590        const { removeTrustedNetwork, getTrustedNetworks } = await import('./sync-storage');591        const networks = await getTrustedNetworks();592        const network = networks.find((n: { ssid?: string; bssid?: string; isTailscale?: boolean }) => 593          (isTailscale ? n.isTailscale : n.ssid === ssid) && 594          (!bssid || n.bssid === bssid)595        );596        if (network) {597          await removeTrustedNetwork(network.addedAt);598        }599        return { ok: true };600      }601      case "MARK_NETWORK_TRUSTED": {602        const { addTrustedNetwork } = await import('./sync-storage');603        const { getCurrentNetwork } = await import('./sync-network');604        const network = await getCurrentNetwork();605        await addTrustedNetwork({606          ssid: network.ssid,607          bssid: network.bssid,608          isTailscale: network.isTailscale,609          addedAt: Date.now(),610        });611        return { ok: true };612      }613      case "RECORD_MANUAL_SUMMON": {614        const { domain } = msg.payload as { domain: string };615        const settings = vault.getSettings();616        const existing = settings.manualSummonDomains?.[domain];617        const now = Date.now();618        await vault.updateSettings({619          manualSummonDomains: {620            ...settings.manualSummonDomains,621            [domain]: {622              firstSummonedAt: existing?.firstSummonedAt ?? now,623              summonCount: (existing?.summonCount ?? 0) + 1,624              lastSummonedAt: now,625            },626          },627        });628        return { ok: true };629      }630      case "DECLINE_CARD_SAVE": {631        const { last4, expMonth, expYear } = msg.payload as { last4: string; expMonth: string; expYear: string };632        await vault.declineCardSaveOffer(last4, expMonth, expYear);633        return { ok: true };634      }635      case "IS_CARD_DECLINED": {636        const { last4, expMonth, expYear } = msg.payload as { last4: string; expMonth: string; expYear: string };637        const declined = await vault.isCardDeclined(last4, expMonth, expYear);638        return { ok: true, data: declined };639      }640      case "INITIATE_FIREFOX_PASSKEY_CREATE": {641        const { rpId, rpName, userName, userDisplayName } = (msg.payload ?? {}) as {642          rpId?: string;643          rpName?: string;644          userName?: string;645          userDisplayName?: string;646        };647        if (!rpId || !userName) return { ok: false, error: "rpId and userName required" };648        return await initiateFirefoxPasskeyCreate({649          rpId,650          rpName: rpName ?? rpId,651          userName,652          userDisplayName,653        });654      }655656      case "COMPLETE_FIREFOX_PASSKEY_CREATE": {657        const payload = msg.payload as Parameters<typeof completeFirefoxPasskeyCreate>[0] | undefined;658        if (!payload) return { ok: false, error: "missing payload" };659        return await completeFirefoxPasskeyCreate(payload);660      }661662      case "PASSKEY_OFFER_DECLINE": {663        const { domain } = (msg.payload ?? {}) as { domain?: string };664        if (!domain) return { ok: false, error: "domain required" };665        await recordPasskeyOfferDecline(domain);666        return { ok: true };667      }668669      case "GET_PASSKEY_OFFER_DECLINED": {670        const { domain } = (msg.payload ?? {}) as { domain?: string };671        if (!domain) return { ok: false, error: "domain required" };672        return { ok: true, data: await isPasskeyOfferDeclined(domain) };673      }674675      case "PASSKEY_HAS_CREDENTIALS": {676        const payload = msg.payload as {677          rpId?: string;678          allowCredentials?: Array<{ id: string; type?: string }>;679        } | undefined;680        if (!payload?.rpId) return { ok: false, error: "rpId required" };681        return await handlePasskeyHasCredentials({682          rpId: payload.rpId,683          allowCredentials: payload.allowCredentials ?? [],684        });685      }686687      case "PASSKEY_CREATE": {688        const payload = msg.payload as Parameters<typeof handleFirefoxPasskeyCreate>[0] | undefined;689        if (!payload?.rpId || !payload?.userName) {690          return { ok: false, error: "rpId and userName required" };691        }692        return await handleFirefoxPasskeyCreate(payload);693      }694695      case "PASSKEY_GET": {696        const payload = msg.payload as Parameters<typeof handleFirefoxPasskeyGet>[0] | undefined;697        if (!payload?.rpId) return { ok: false, error: "rpId required" };698        return await handleFirefoxPasskeyGet(payload);699      }700701      case "GET_PASSKEY_FOR_DOMAIN": {702        const { domain } = (msg.payload ?? {}) as { domain?: string };703        if (!domain) return { ok: false, error: "domain required" };704        if (!vault.isUnlocked()) return { ok: true, data: null };705        const match = vault706          .getEntries()707          .find((entry) => entry.passkey?.rpId === domain);708        if (!match || !match.passkey) return { ok: true, data: null };709        // Slim shape — only the fields State 11 needs. Never expose private710        // key material, even though this is locked behind isUnlocked.711        return {712          ok: true,713          data: {714            rpId: match.passkey.rpId,715            userName: match.passkey.userName,716            browser: match.passkey.browser,717          },718        };719      }720721      case "DESTROY_VAULT": {722        // Irreversible by design. Lock zeroes the derived key + in-memory entries;723        // storage.local.clear() wipes every Peach key (slots, settings, license,724        // onboarded flag, snapshots, sync state, declined cards, recall, etc.);725        // session.clear() wipes pending passkey requests + pro-notice queues.726        // Caller (Panic.tsx) handles UI navigation back to onboarding.727        vault.lock();728        await chrome.storage.local.clear();729        if (chrome.storage.session) {730          await chrome.storage.session.clear();731        }732        return { ok: true };733      }734735      case "SUBMIT_FEEDBACK": {736        const { category, message, version, browser } = msg.payload as {737          category: string;738          message: string;739          version: string;740          browser: string;741        };742        if (!message.trim()) return { ok: false, error: "message is empty" };743        if (!FEEDBACK_ENDPOINT) return { ok: true };744        if (!isAllowedCanaryWebhookUrl(FEEDBACK_ENDPOINT)) {745          return { ok: false, error: "invalid feedback endpoint" };746        }747        try {748          const res = await fetch(FEEDBACK_ENDPOINT, {749            method: "POST",750            headers: { "Content-Type": "application/json" },751            body: JSON.stringify({ category, message, version, browser, source: "peach-extension" }),752          });753          return { ok: res.ok, error: res.ok ? undefined : `HTTP ${res.status}` };754        } catch (err) {755          return { ok: false, error: err instanceof Error ? err.message : "network error" };756        }757      }758      default:759        return { ok: false, error: "unknown message type" };760    }761  } catch (err) {762    return {763      ok: false,764      error: err instanceof Error ? err.message : "operation failed",765    };766  }767}768769/** Notify all content scripts that the vault just became available. */770function broadcastToContentScripts(message: { type: string }): void {771  chrome.tabs.query({}, (tabs) => {772    for (const tab of tabs) {773      if (tab.id !== undefined) {774        chrome.tabs.sendMessage(tab.id, message).catch(() => {775          // Tab may not have a content script — silently ignore776        });777      }778    }779  });780}781782function shouldRefreshAutoLock(type: MessageType): boolean {783  return (784    type !== "HAS_VAULT" &&785    type !== "IS_UNLOCKED" &&786    type !== "GET_VAULT_STATUS" &&787    type !== "LOCK" &&788    type !== "UPDATE_SETTINGS" &&789    type !== "GET_PENDING_PASSKEY" &&790    type !== "GET_PASSKEY_PROVIDER_STATE" &&791    type !== "DECLINE_CARD_SAVE" &&792    type !== "IS_CARD_DECLINED" &&793    type !== "SUBMIT_FEEDBACK"794  );795}796797function isAllowedCanaryWebhookUrl(value: string): boolean {798  try {799    const url = new URL(value);800    if (url.protocol !== "https:") return false;801802    const hostname = url.hostname.toLowerCase();803    if (804      hostname === "localhost" ||805      hostname.endsWith(".localhost") ||806      isPrivateIpv4(hostname) ||807      isPrivateIpv6(hostname)808    ) {809      return false;810    }811812    return true;813  } catch {814    return false;815  }816}817818function isPrivateIpv4(hostname: string): boolean {819  if (PRIVATE_IPV4_RANGES.some((range) => hostname.startsWith(range.prefix))) {820    return true;821  }822823  const octets = hostname.split(".").map((part) => Number(part));824  if (octets.length !== 4 || octets.some((octet) => !Number.isInteger(octet) || octet < 0 || octet > 255)) {825    return false;826  }827828  return octets[0] === 172 && octets[1] >= 16 && octets[1] <= 31;829}830831function isPrivateIpv6(hostname: string): boolean {832  const normalized = hostname.replace(/^\[|\]$/g, "").toLowerCase();833  return (834    normalized === "::1" ||835    normalized.startsWith("fc") ||836    normalized.startsWith("fd") ||837    normalized.startsWith("fe80:")838  );839}