peach-browser / src / background @ 41f5c122d811

messages.ts

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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 * as syncLifecycle from "./sync-lifecycle";16import {17  activateLicense,18  deactivateLicense,19  getLicenseInfo,20  getLicenseKey,21  isProUser,22  markCelebrationPlayed,23  shouldPlayCelebration,24} from "./license";25import {26  cancelFirefoxPasskeyCreate,27  completeFirefoxPasskeyCreate,28  getPasskeyProviderState,29  getPendingPasskeyRequest,30  handleFirefoxPasskeyCreate,31  handleFirefoxPasskeyGet,32  handlePasskeyHasCredentials,33  initiateFirefoxPasskeyCreate,34  isPasskeyOfferDeclined,35  recordPasskeyOfferDecline,36  resolvePendingPasskeyRequest,37  setPasskeyProviderEnabled,38} from "./passkey";39import { buildAdvancedHealthReport, resolveResetUrl } from "./health";40import { Capacitor } from "@capacitor/core";41import { storageClear } from "../shared/storage";42import type {43  Message,44  MessageResponse,45  MessageType,46  ProFeature,47} from "../shared/types";48import { isPasskeyOnly } from "../shared/types";49import type { SyncStatus } from "../shared/sync-types";5051/**52 * The single Pro gate. Every gated handler calls this first; the broadcast53 * lets the popup react (navigate to the License section, highlight the54 * relevant feature). Background never touches the popup view directly —55 * the popup owns navigation. See Projects.md "Pro gate rule".56 */57async function requirePro(58  feature: ProFeature,59  trigger: "user" | "background" = "user"60): Promise<{ allowed: boolean }> {61  if (await isProUser()) return { allowed: true };6263  if (trigger === "user") {64    // User deliberately triggered this feature — redirect the popup immediately.65    if (!Capacitor.isNativePlatform()) {66      chrome.runtime67        .sendMessage({ type: "PRO_GATE_TRIGGERED", payload: { feature } })68        .catch(() => {69          // Popup may be closed — the gate signal is best-effort.70        });71    }72  } else {73    // Background trigger (e.g. passive sync initiation) — no popup is open.74    // Queue a notice so the next popup open shows a soft banner instead of75    // silently failing.76    if (!Capacitor.isNativePlatform() && chrome.storage.session) {77      chrome.storage.session78        .set({ pendingProNotice: { feature, triggeredAt: Date.now() } })79        .catch(() => {});80    }81  }8283  return { allowed: false };84}8586// ---------------------------------------------------------------------------87// Local device name. Peers see this string in PAIR_REQUEST / PAIR_ACCEPT and88// next to the device in their paired-devices list. Default to a platform-aware89// fallback when the user hasn't set one explicitly.90const DEVICE_NAME_KEY = "peach_device_name";9192async function getLocalDeviceName(): Promise<string> {93  try {94    const stored = await chrome.storage.local.get(DEVICE_NAME_KEY);95    const value = (stored as Record<string, string | undefined>)[DEVICE_NAME_KEY];96    if (typeof value === "string" && value.trim()) return value.trim();97  } catch {98    // fall through to default99  }100  if (Capacitor.getPlatform() === "android") return "Peach Android";101  if (Capacitor.getPlatform() === "ios") return "Peach iOS";102  return "Peach";103}104105// ---------------------------------------------------------------------------106// Peer discovery glue (Phase 7 popup pairing flow).107//108// The popup opens discovery via START_PEER_DISCOVERY. We connect to the109// native sync host, subscribe once, and re-broadcast every PEER_DISCOVERED /110// PEER_LOST event to the popup as a SYNC_PEER_DISCOVERED / SYNC_PEER_LOST111// runtime message. The popup is the only consumer; if it closes, STOP is112// sent on cleanup which tears down subscriptions and the native discovery.113// ---------------------------------------------------------------------------114115let peerDiscoverySubscriptions: Array<() => void> = [];116117async function startPeerDiscoveryForPopup(): Promise<void> {118  await stopPeerDiscoveryForPopup();119  const sync = await import('./sync');120  const { getPairedDevices } = await import('./sync-storage');121  sync.connectSyncHost();122123  const unsubDiscovered = sync.onPeerDiscovered((peer) => {124    void (async () => {125      const paired = await getPairedDevices();126      const alreadyPaired = paired.some((d) => d.deviceId === peer.deviceId);127      if (Capacitor.isNativePlatform()) return;128      chrome.runtime129        .sendMessage({130          type: "SYNC_PEER_DISCOVERED",131          peer: {132            deviceId: peer.deviceId,133            deviceName: peer.name,134            host: peer.host,135            port: peer.port,136            wsPort: peer.wsPort,137            x25519PublicKey: peer.x25519PublicKey,138            alreadyPaired,139          },140        })141        .catch(() => {});142    })();143  });144  const unsubLost = sync.onPeerLost((deviceId) => {145    if (Capacitor.isNativePlatform()) return;146    chrome.runtime147      .sendMessage({ type: "SYNC_PEER_LOST", deviceId })148      .catch(() => {});149  });150  peerDiscoverySubscriptions = [unsubDiscovered, unsubLost];151  sync.discoverPeers();152}153154async function stopPeerDiscoveryForPopup(): Promise<void> {155  for (const unsub of peerDiscoverySubscriptions) unsub();156  peerDiscoverySubscriptions = [];157  try {158    const sync = await import('./sync');159    if (sync.isHostConnected()) {160      await sync.stopDiscovery();161    }162  } catch {163    // best-effort164  }165}166167const PRIVATE_IPV4_RANGES = [168  { prefix: "10." },169  { prefix: "127." },170  { prefix: "169.254." },171  { prefix: "192.168." },172];173174// Empty disables network submission while the UI continues to function as a175// no-op (the handler returns ok:true without calling fetch). When set, the176// URL is validated by `isAllowedCanaryWebhookUrl` before any request, so the177// same private-IP/HTTPS rules that gate canary webhooks apply here.178const FEEDBACK_ENDPOINT = "";179180export function setupMessageHandler(): void {181  chrome.runtime.onMessage.addListener(182    (msg: unknown, sender, sendResponse) => {183      if (!isMessage(msg)) {184        sendResponse({ ok: false, error: "invalid message" });185        return true;186      }187      handleMessage(msg, sender)188        .then(sendResponse)189        .catch((err) =>190          sendResponse({191            ok: false,192            error: err instanceof Error ? err.message : String(err),193          })194        );195      return true;196    }197  );198}199200function isMessage(m: unknown): m is Message {201  return typeof m === "object" && m !== null && "type" in m;202}203204export async function handleMessage(205  msg: Message,206  sender: Partial<chrome.runtime.MessageSender> = {}207): Promise<MessageResponse> {208  try {209    // Validate sender — only allow messages from our extension pages/scripts.210    // `sender.id` is undefined for messages originating from extension UI211    // (popup/options), which is legitimate; reject only when it is defined212    // and does not match our extension id.213    if (214      !Capacitor.isNativePlatform() &&215      sender.id !== undefined &&216      sender.id !== chrome.runtime.id217    ) {218      return { ok: false, error: "invalid sender" };219    }220221    if (shouldRefreshAutoLock(msg.type) && vault.isUnlocked()) {222      touchAutoLock();223    }224225    switch (msg.type) {226      case "CREATE_VAULT": {227        const { password } = msg.payload as { password: string };228        await vault.createVault(password);229        await setupAutoLock();230        broadcastToContentScripts({ type: "VAULT_UNLOCKED" });231        void syncLifecycle.onVaultUnlocked();232        return { ok: true };233      }234      case "UNLOCK": {235        const { password } = msg.payload as { password: string };236        const ok = await vault.unlock(password);237        if (ok) {238          await setupAutoLock();239          broadcastToContentScripts({ type: "VAULT_UNLOCKED" });240          void syncLifecycle.onVaultUnlocked();241        }242        return { ok };243      }244      case "LOCK":245        vault.lock();246        void syncLifecycle.onVaultLocked();247        return { ok: true };248      case "IS_UNLOCKED":249        return { ok: true, data: vault.isUnlocked() };250      case "GET_VAULT_STATUS":251        return { ok: true, unlocked: vault.isUnlocked() };252      case "HAS_VAULT":253        return { ok: true, data: await vault.hasVault() };254      case "GET_ENTRIES":255        return { ok: true, data: vault.getEntries() };256      case "ADD_ENTRY": {257        if (!vault.isUnlocked()) return { ok: false, error: "vault locked" };258        const entry = await vault.addEntry(msg.payload as any);259        return { ok: true, data: entry };260      }261      case "BATCH_ADD_ENTRIES": {262        const { entries } = msg.payload as { entries: any[] };263        const added = await vault.batchAddEntries(entries);264        return { ok: true, data: added };265      }266      case "RESTORE_ENTRIES": {267        const { entries, mode, settings } = msg.payload as {268          entries: any[];269          mode: "replace" | "merge";270          settings?: vault.VaultSettings;271        };272        const summary = await vault.restoreEntries(entries, mode);273        if (settings && typeof settings === "object") {274          await vault.updateSettings(settings);275        }276        return { ok: true, data: summary };277      }278      case "CLEAR_VAULT_ENTRIES": {279        await vault.clearVaultEntries("REPLACE_ALL");280        return { ok: true };281      }282      case "GET_VAULT_HISTORY": {283        const snapshots = await vault.getVaultHistory();284        return { ok: true, data: snapshots };285      }286      case "RESTORE_VAULT_SNAPSHOT": {287        const { snapshotId } = msg.payload as { snapshotId: string };288        const result = await vault.restoreVaultSnapshot(snapshotId);289        if (!result.ok) return { ok: false, error: result.error };290        broadcastToContentScripts({ type: "VAULT_LOCKED" });291        return { ok: true };292      }293      case "COUNT_DUPLICATES": {294        return { ok: true, data: vault.countDuplicates() };295      }296      case "DEDUPLICATE_ENTRIES": {297        const removed = await vault.deduplicateEntries();298        return { ok: true, data: removed };299      }300      case "UPDATE_ENTRY": {301        const { id, patch } = msg.payload as any;302        await vault.updateEntry(id, patch);303        return { ok: true };304      }305      case "ADD_ADDITIONAL_URL": {306        const { id, url } = msg.payload as { id: string; url: string };307        const trimmed = typeof url === "string" ? url.trim() : "";308        if (!trimmed) return { ok: false, error: "url required" };309        const existing = vault.getEntryById(id);310        if (!existing) return { ok: false, error: "entry not found" };311        if (existing.type !== "login") return { ok: false, error: "login entries only" };312        const merged = [...(existing.additionalUrls ?? []), trimmed];313        await vault.updateEntry(id, { additionalUrls: merged });314        return { ok: true };315      }316      case "DELETE_ENTRY": {317        const { id } = msg.payload as { id: string };318        await vault.deleteEntry(id);319        return { ok: true };320      }321      case "GET_DELETED_ENTRIES":322        return { ok: true, data: vault.getDeletedEntries() };323      case "RESTORE_ENTRY": {324        const { id } = msg.payload as { id: string };325        await vault.restoreEntry(id);326        return { ok: true };327      }328      case "PURGE_ENTRY": {329        const { id } = msg.payload as { id: string };330        await vault.purgeEntry(id);331        return { ok: true };332      }333      case "PURGE_EXPIRED_TRASH": {334        const { retentionMs } = msg.payload as { retentionMs: number };335        const purged = await vault.purgeExpiredTrash(retentionMs);336        return { ok: true, data: purged };337      }338      case "AUTOFILL_QUERY": {339        if (!vault.isUnlocked()) {340          return { ok: false, error: "VAULT_LOCKED" };341        }342        const { domain, includeAll, kind } = msg.payload as {343          domain: string;344          includeAll?: boolean;345          kind?: "login" | "card";346        };347        // kind="card": return saved cards as compact summaries for the348        // inline card silver platter. Cards are not domain-scoped — every349        // saved card is a candidate on every checkout page — so domain is350        // ignored when kind === "card".351        if (kind === "card") {352          const cards = vault.getEntries().filter((e) => e.type === "card");353          return {354            ok: true,355            data: cards.map((e) => ({356              id: e.id,357              title: e.cardNickname || e.title,358              cardholderName: e.cardholderName,359              last4: e.last4,360              expMonth: e.expMonth,361              expYear: e.expYear,362              network: e.network,363            })),364          };365        }366        // The inline selector fills username+password into a form. Passkey-367        // only entries have no password to fill; sign-in for those goes368        // through the WebAuthn path instead. Filter them out everywhere so369        // the user doesn't see four "GitHub" rows that mostly do nothing.370        // Notes and cards never belonged here either.371        const matches = (372          includeAll373            ? vault374                .getEntries()375                .filter((entry) => entry.type !== "note" && entry.type !== "card")376            : vault.queryDomain(domain)377        ).filter((entry) => !isPasskeyOnly(entry));378        return {379          ok: true,380          data: matches.map((e) =>381            includeAll382              ? {383                  id: e.id,384                  title: e.title,385                  hasPasskey: e.passkey !== undefined,386                }387              : {388                  id: e.id,389                  title: e.title,390                  username: e.username,391                  url: e.url,392                  hasTotp: Boolean(e.totp),393                  hasPasskey: e.passkey !== undefined,394                }395          ),396        };397      }398      case "GET_ENTRY_FOR_FILL": {399        if (!vault.isUnlocked()) return { ok: false, error: "vault locked" };400        const { id } = msg.payload as { id: string };401        const entry = vault.getEntryById(id);402        if (!entry) return { ok: false, error: "entry not found" };403        // Passkey-only entries (passkey credential, no password) cannot be404        // filled into a form — sign-in goes through the WebAuthn path. A405        // login that ALSO has a passkey is still fillable for its password.406        if (isPasskeyOnly(entry)) return { ok: false, error: "passkey not fillable" };407        // Strip the passkey credential from the response — content scripts408        // never need the private key, and there's no reason to expose the409        // public credential metadata over the boundary either.410        const { passkey: _strippedPasskey, ...safeEntry } = entry;411        return { ok: true, data: safeEntry };412      }413      case "COPY": {414        const { text, label, alreadyWritten } = msg.payload as {415          text: string;416          label: string;417          alreadyWritten?: boolean;418        };419        await copyToClipboard(text, label, Boolean(alreadyWritten));420        return { ok: true };421      }422      case "CHECK_BREACH": {423        const { password } = msg.payload as { password: string };424        const count = await vault.checkBreach(password);425        return { ok: true, data: count };426      }427      case "CHECK_ALL_BREACHES": {428        const allEntries = vault.getEntries();429        const results: Record<string, number> = {};430        for (const entry of allEntries) {431          if (entry.type === "note") continue;432          if (!entry.password) continue;433          results[entry.id] = await vault.checkBreach(entry.password);434          // Small delay — be a good citizen to the HIBP API435          await new Promise((r) => setTimeout(r, 200));436        }437        // Persist any non-zero counts back to entries438        for (const [id, count] of Object.entries(results)) {439          const entry = vault.getEntryById(id);440          if (entry && (entry.breach ?? 0) !== count) {441            await vault.updateEntry(id, { breach: count > 0 ? count : undefined });442          }443        }444        return { ok: true, data: results };445      }446      case "GET_SETTINGS":447        return { ok: true, data: await vault.ensureSettingsLoaded() };448      case "UPDATE_SETTINGS": {449        const patch = msg.payload as Record<string, unknown>;450        await vault.updateSettings(patch as any);451        if (typeof patch.autoLockMinutes === "number") {452          await setupAutoLock();453          if (vault.isUnlocked()) touchAutoLock();454        }455        return { ok: true };456      }457      case "GET_PENDING_PASSKEY":458        return { ok: true, data: await getPendingPasskeyRequest() };459      case "APPROVE_PASSKEY": {460        const { requestId } = msg.payload as { requestId: number };461        await resolvePendingPasskeyRequest(requestId, true);462        return { ok: true };463      }464      case "DENY_PASSKEY": {465        const { requestId } = msg.payload as { requestId: number };466        await resolvePendingPasskeyRequest(requestId, false);467        return { ok: true };468      }469      case "GET_PASSKEYS":470        return {471          ok: true,472          data: vault.getEntries().filter((entry) => entry.passkey !== undefined),473        };474      case "DELETE_PASSKEY": {475        const { id } = msg.payload as { id: string };476        await vault.deleteEntry(id);477        return { ok: true };478      }479      case "GET_PASSKEY_PROVIDER_STATE":480        return { ok: true, data: await getPasskeyProviderState() };481      case "SET_PASSKEY_PROVIDER_ENABLED": {482        const { enabled } = msg.payload as { enabled: boolean };483        // Disabling is always free; gating fires only when a free user is484        // trying to turn passkey interception on.485        if (enabled) {486          const gate = await requirePro("passkeys");487          if (!gate.allowed) return { ok: false, error: "pro_required" };488        }489        return { ok: true, data: await setPasskeyProviderEnabled(enabled) };490      }491      case "FIRE_CANARY_PING": {492        const { webhookUrl, entryTitle, trigger } = msg.payload as {493          webhookUrl: string;494          entryTitle: string;495          trigger: "password_copied" | "username_copied" | "autofilled" | "submitted" | "test";496        };497        if (!isAllowedCanaryWebhookUrl(webhookUrl)) {498          return { ok: false, error: "invalid webhook url" };499        }500        const body = JSON.stringify({501          event: trigger === "test" ? "peach_canary_test" : "peach_canary_accessed",502          entry: entryTitle,503          trigger,504          timestamp: new Date().toISOString(),505          source: "peach-extension",506        });507        if (trigger === "test") {508          // Permitted outbound fetch: user-configured canary alert endpoint509          // (validated by isAllowedCanaryWebhookUrl above). This is the510          // only non-HIBP outbound call in the extension — see511          // Projects.md §3.7. Test pings are awaited so the UI can show512          // success/failure.513          try {514            const res = await fetch(webhookUrl, {515              method: "POST",516              headers: { "Content-Type": "application/json" },517              body,518            });519            return { ok: res.ok, error: res.ok ? undefined : `HTTP ${res.status}` };520          } catch (err) {521            return { ok: false, error: err instanceof Error ? err.message : "network error" };522          }523        }524        // Non-test triggers are fire-and-forget525        fetch(webhookUrl, {526          method: "POST",527          headers: { "Content-Type": "application/json" },528          body,529        }).catch(() => {});530        return { ok: true };531      }532      case "ACTIVATE_LICENSE": {533        const { key } = msg.payload as { key: string };534        const licenseInfo = await activateLicense(key);535        return { ok: true, data: licenseInfo };536      }537      case "GET_LICENSE": {538        const licenseInfo = await getLicenseInfo();539        return { ok: true, data: licenseInfo };540      }541      case "GET_LICENSE_KEY": {542        const key = await getLicenseKey();543        return { ok: true, data: key };544      }545      case "DEACTIVATE_LICENSE": {546        await deactivateLicense();547        return { ok: true };548      }549      case "SHOULD_PLAY_CELEBRATION": {550        const should = await shouldPlayCelebration();551        return { ok: true, data: should };552      }553      case "MARK_CELEBRATION_PLAYED": {554        await markCelebrationPlayed();555        return { ok: true };556      }557      case "OPEN_PRO_GATE": {558        // Content script requests: open popup and navigate to License section.559        const { feature } = (msg.payload ?? {}) as { feature?: string };560        if (chrome.storage.session) {561          await chrome.storage.session.set({ pendingProGate: { feature: feature ?? "passkeys" } });562        }563        try { await chrome.action.openPopup(); } catch { /* badge fallback */ }564        return { ok: true };565      }566      case "GET_IDENTITIES": {567        if (!vault.isUnlocked()) return { ok: false, error: "vault locked" };568        return { ok: true, data: vault.getIdentities() };569      }570      case "GET_ADVANCED_HEALTH_REPORT": {571        const gate = await requirePro("advanced_health");572        if (!gate.allowed) return { ok: false, error: "pro_required" };573        if (!vault.isUnlocked()) return { ok: false, error: "vault locked" };574        const report = await buildAdvancedHealthReport(vault.getEntries());575        return { ok: true, data: report };576      }577      case "INITIATE_PASSWORD_CHANGE": {578        const gate = await requirePro("smart_password_change");579        if (!gate.allowed) return { ok: false, error: "pro_required" };580        if (!vault.isUnlocked()) return { ok: false, error: "vault locked" };581        const { id } = msg.payload as { id: string };582        const entry = vault.getEntryById(id);583        if (!entry) return { ok: false, error: "entry not found" };584        const url = resolveResetUrl(entry);585        if (!url) return { ok: false, error: "no reset url" };586        try {587          await chrome.tabs.create({ url });588          return { ok: true, data: { url } };589        } catch (err) {590          return {591            ok: false,592            error: err instanceof Error ? err.message : "failed to open tab",593          };594        }595      }596      case "IS_DURESS_ENABLED": {597        const enabled = await vault.isDuressEnabled();598        return { ok: true, data: enabled };599      }600      case "SETUP_DURESS": {601        const { duressPassword } = msg.payload as { duressPassword: string };602        await vault.setupDuress(duressPassword);603        return { ok: true };604      }605      case "DISABLE_DURESS": {606        await vault.disableDuress();607        return { ok: true };608      }609      case "VERIFY_MAIN_PASSWORD": {610        const { password } = msg.payload as { password: string };611        const ok = await vault.verifyMainPassword(password);612        return { ok: true, data: ok };613      }614      case "CHANGE_PASSWORD": {615        const { currentPassword, newPassword } = msg.payload as {616          currentPassword: string;617          newPassword: string;618        };619        const changed = await vault.changePassword(currentPassword, newPassword);620        return changed621          ? { ok: true }622          : { ok: false, error: "incorrect current password" };623      }624      case "GET_SITE_PASSWORD_POLICY": {625        const [tab] = await chrome.tabs.query({ active: true, currentWindow: true });626        if (!tab?.id) return { ok: true, data: null };627        try {628          const response = await chrome.tabs.sendMessage(tab.id, {629            type: "GET_SITE_PASSWORD_POLICY",630          });631          return (response as MessageResponse) ?? { ok: true, data: null };632        } catch {633          return { ok: true, data: null };634        }635      }636      case "GET_SYNC_STATE": {637        const { getPairedDevices, getTrustedNetworks } = await import('./sync-storage');638        const { isOnTailscale } = await import('./sync-network');639        const { isProUser } = await import('./license');640        const { storageGet } = await import('../shared/storage');641        const pairedDevices = await getPairedDevices();642        const trustedNetworks = await getTrustedNetworks();643        const tailscale = await isOnTailscale();644        const pro = await isProUser();645646        let status: SyncStatus = "offline";647        if (tailscale || trustedNetworks.some((n: { isTailscale?: boolean }) => !n.isTailscale)) {648          if (pairedDevices.length === 0) {649            status = "no_peers";650          } else {651            status = "synced";652          }653        } else {654          status = "not_trusted";655        }656657        const lastSyncRaw = await storageGet("peach_last_sync_at");658        const lastSyncParsed = lastSyncRaw ? Number.parseInt(lastSyncRaw, 10) : NaN;659        const lastSyncAt = Number.isFinite(lastSyncParsed) ? lastSyncParsed : undefined;660661        return { ok: true, data: { pairedDevices, trustedNetworks, status, lastSyncAt, isPro: pro } };662      }663      case "TRIGGER_SYNC": {664        const gate = await requirePro("sync");665        if (!gate.allowed) return { ok: false, error: "pro_required" };666        if (!vault.isUnlocked()) return { ok: false, error: "vault_locked" };667668        const { getPairedDevices, updatePairedDevice } = await import('./sync-storage');669        const paired = await getPairedDevices();670        if (paired.length === 0) return { ok: false, error: "no_paired_devices" };671672        const lifecycle = await import('./sync-lifecycle');673        const sync = await import('./sync');674        const { storageGet, storageSet } = await import('../shared/storage');675        const { createNativeSyncTransport, runBlobSyncSession } = await import('./sync-coordinator');676677        const discovered = lifecycle.getDiscoveredPeerCache();678        const reachable = paired.filter((device) =>679          discovered.some((peer) => peer.x25519PublicKey === device.x25519PublicKey),680        );681        if (reachable.length === 0) return { ok: false, error: "no_devices_reachable" };682683        // Sequential — each session may update peach_vault_a, and the next684        // peer should receive the freshest blob (which may already include685        // changes from the previous device in this same pass).686        const results: Array<{687          deviceName: string;688          status: "completed" | "errored" | "closed";689          error?: string;690        }> = [];691        for (const device of reachable) {692          const peer = discovered.find((p) => p.x25519PublicKey === device.x25519PublicKey)!;693          try {694            const connectionId = await sync.connectToPeer(peer.host, peer.port, peer.x25519PublicKey);695            const transport = await createNativeSyncTransport(connectionId);696            const result = await runBlobSyncSession("initiator", transport, {697              isPro: async () => true,698              isUnlocked: () => vault.isUnlocked(),699              getVaultBlobs: async () => ({700                vault_a: (await storageGet("peach_vault_a")) ?? "",701                vault_b: (await storageGet("peach_vault_b")) ?? "",702              }),703            });704            results.push({705              deviceName: device.displayName,706              status: result.status,707              error: result.error,708            });709            if (result.status === "completed") {710              await updatePairedDevice(device.deviceId, {711                lastSeenAt: Date.now(),712                lastSyncAt: Date.now(),713              });714            }715          } catch (err) {716            results.push({717              deviceName: device.displayName,718              status: "errored",719              error: err instanceof Error ? err.message : String(err),720            });721          }722        }723724        await storageSet("peach_last_sync_at", String(Date.now()));725        return {726          ok: true,727          data: {728            results,729            syncedCount: results.filter((r) => r.status === "completed").length,730            totalReachable: reachable.length,731          },732        };733      }734      case "START_PAIRING": {735        const gate = await requirePro("sync");736        if (!gate.allowed) return { ok: false, error: "pro_required" };737        return { ok: true };738      }739      case "CANCEL_PAIRING": {740        return { ok: true };741      }742      case "ACCEPT_PAIRING": {743        const gate = await requirePro("sync");744        if (!gate.allowed) return { ok: false, error: "pro_required" };745        return { ok: true };746      }747      case "REMOVE_PAIRED_DEVICE": {748        const { deviceId } = msg.payload as { deviceId: string };749        const { removePairedDevice } = await import('./sync-storage');750        await removePairedDevice(deviceId);751        return { ok: true };752      }753      case "REMOVE_TRUSTED_NETWORK": {754        const { ssid, bssid, isTailscale } = msg.payload as any;755        const { removeTrustedNetwork, getTrustedNetworks } = await import('./sync-storage');756        const networks = await getTrustedNetworks();757        const network = networks.find((n: { ssid?: string; bssid?: string; isTailscale?: boolean }) => 758          (isTailscale ? n.isTailscale : n.ssid === ssid) && 759          (!bssid || n.bssid === bssid)760        );761        if (network) {762          await removeTrustedNetwork(network.addedAt);763        }764        return { ok: true };765      }766      case "MARK_NETWORK_TRUSTED": {767        const { addTrustedNetwork } = await import('./sync-storage');768        const { getCurrentNetwork } = await import('./sync-network');769        const network = await getCurrentNetwork();770        await addTrustedNetwork({771          ssid: network.ssid,772          bssid: network.bssid,773          isTailscale: network.isTailscale,774          addedAt: Date.now(),775        });776        return { ok: true };777      }778      case "GET_INCOMING_PAIRING_REQUEST": {779        const { getIncomingPairingRequest } = await import('./sync-storage');780        const request = await getIncomingPairingRequest();781        return { ok: true, data: request };782      }783      case "RESPOND_INCOMING_PAIRING": {784        const { accept } = msg.payload as { accept: boolean };785        const { getIncomingPairingRequest, clearIncomingPairingRequest, addPairedDevice } =786          await import('./sync-storage');787        const request = await getIncomingPairingRequest();788        if (!request) return { ok: false, error: "no_pending_request" };789        if (Date.now() > request.expiresAt) {790          await clearIncomingPairingRequest();791          return { ok: false, error: "expired" };792        }793794        const sync = await import('./sync');795        const { encodeSyncMessage } = await import('../shared/sync-wire');796797        // Always clear the pending request — UI must not show the banner twice798        // even if the wire-level send below fails.799        await clearIncomingPairingRequest();800801        if (request.connectionId) {802          try {803            if (accept) {804              const ourKey = await sync.getIdentityPublicKey();805              const ourName = await getLocalDeviceName();806              sync.sendSyncData(807                request.connectionId,808                encodeSyncMessage({809                  type: "PAIR_ACCEPT",810                  public_key_hex: ourKey,811                  device_name: ourName,812                }),813              );814              await sync.trustDevice(request.publicKeyHex, request.deviceName);815              await addPairedDevice({816                deviceId: request.publicKeyHex,817                displayName: request.deviceName,818                x25519PublicKey: request.publicKeyHex,819                pairedAt: Date.now(),820                lastSeenAt: Date.now(),821              });822            } else {823              sync.sendSyncData(824                request.connectionId,825                encodeSyncMessage({ type: "PAIR_REJECT", reason: "user_declined" }),826              );827            }828          } catch (err) {829            // Wire failure is non-fatal for the local trust update — the830            // initiator will time out cleanly on its end.831            void err;832          }833          try { sync.disconnectFromPeer(request.connectionId); } catch { /* best-effort */ }834        } else if (accept) {835          // Test-injected request without a real connection: still record local trust.836          try {837            await sync.trustDevice(request.publicKeyHex, request.deviceName);838          } catch {839            // Native host may not be installed in test contexts.840          }841        }842843        return { ok: true, data: { accepted: accept, deviceName: request.deviceName } };844      }845      case "START_PEER_DISCOVERY": {846        const gate = await requirePro("sync");847        if (!gate.allowed) return { ok: false, error: "pro_required" };848        try {849          await startPeerDiscoveryForPopup();850          return { ok: true };851        } catch (err) {852          return { ok: false, error: err instanceof Error ? err.message : "discovery_failed" };853        }854      }855      case "STOP_PEER_DISCOVERY": {856        try {857          await stopPeerDiscoveryForPopup();858        } catch {859          // best-effort cleanup860        }861        return { ok: true };862      }863      case "INITIATE_PAIR_WITH_PEER": {864        const gate = await requirePro("sync");865        if (!gate.allowed) return { ok: false, error: "pro_required" };866        const { peer } = msg.payload as {867          peer: { deviceId: string; deviceName: string; host: string; port: number; x25519PublicKey: string };868        };869870        const sync = await import('./sync');871        const { encodeSyncMessage } = await import('../shared/sync-wire');872        const { waitForPairingResponse } = await import('./sync-coordinator');873        const { addPairedDevice } = await import('./sync-storage');874875        let connectionId: string | undefined;876        try {877          // The responder accepts this connection only because pairing mode is878          // active on its side — Noise NK still authenticates the *transport*,879          // and the responder verifies our auth proof, but our public key is880          // not yet in their trust store. The PAIR_ACCEPT we receive is the881          // user's confirmation on the peer device that we should be added.882          connectionId = await sync.connectToPeer(peer.host, peer.port, peer.x25519PublicKey);883884          const ourPublicKeyHex = await sync.getIdentityPublicKey();885          const deviceName = await getLocalDeviceName();886887          sync.sendSyncData(888            connectionId,889            encodeSyncMessage({890              type: "PAIR_REQUEST",891              public_key_hex: ourPublicKeyHex,892              device_name: deviceName,893            }),894          );895896          const response = await waitForPairingResponse(connectionId, 30_000);897898          if (response.type === "PAIR_ACCEPT") {899            await sync.trustDevice(response.public_key_hex, response.device_name);900            await addPairedDevice({901              deviceId: peer.deviceId,902              displayName: response.device_name || peer.deviceName,903              x25519PublicKey: response.public_key_hex,904              pairedAt: Date.now(),905              lastSeenAt: Date.now(),906            });907            sync.disconnectFromPeer(connectionId);908            return { ok: true, data: { connectionId, deviceName: response.device_name } };909          }910911          if (response.type === "PAIR_REJECT") {912            sync.disconnectFromPeer(connectionId);913            return { ok: false, error: "pair_rejected", data: { reason: response.reason } };914          }915916          sync.disconnectFromPeer(connectionId);917          return { ok: false, error: "unexpected_response" };918        } catch (err) {919          if (connectionId) {920            try { sync.disconnectFromPeer(connectionId); } catch { /* best-effort */ }921          }922          return { ok: false, error: err instanceof Error ? err.message : "pair_failed" };923        }924      }925      case "DEBUG_INJECT_INCOMING_PAIRING": {926        // Manual E2E rehearsal hook. Inserts a synthetic incoming pairing927        // request into session storage so Phase 7 banner UX can be exercised928        // without a live native host. No Pro gate — this is a no-op in929        // production unless explicitly invoked from a Settings debug action.930        const { deviceName, publicKeyHex } = (msg.payload ?? {}) as {931          deviceName?: string;932          publicKeyHex?: string;933        };934        if (!deviceName || !publicKeyHex) {935          return { ok: false, error: "missing_payload" };936        }937        const { setIncomingPairingRequest } = await import('./sync-storage');938        const now = Date.now();939        await setIncomingPairingRequest({940          deviceName,941          publicKeyHex,942          receivedAt: now,943          expiresAt: now + 60_000,944        });945        return { ok: true };946      }947      case "RESET_SYNC_IDENTITY": {948        const gate = await requirePro("sync");949        if (!gate.allowed) return { ok: false, error: "pro_required" };950        const { getPairedDevices, removePairedDevice } = await import('./sync-storage');951        const devices = await getPairedDevices();952        for (const device of devices) {953          await removePairedDevice(device.deviceId);954        }955        // Native rotation is best-effort: when the native messaging host is956        // not yet installed (Phase 9), connectNative throws and we still957        // honour the local clear so the UI reflects the reset. The native958        // identity rotates the next time the host starts cleanly anyway.959        let nativePublicKey: string | null = null;960        try {961          const { rotateNativeIdentity, disconnectSyncHost } = await import('./sync');962          nativePublicKey = await rotateNativeIdentity();963          disconnectSyncHost();964        } catch {965          nativePublicKey = null;966        }967        return { ok: true, data: { removedDevices: devices.length, nativePublicKey } };968      }969      case "RECORD_MANUAL_SUMMON": {970        const { domain } = msg.payload as { domain: string };971        const settings = vault.getSettings();972        const existing = settings.manualSummonDomains?.[domain];973        const now = Date.now();974        await vault.updateSettings({975          manualSummonDomains: {976            ...settings.manualSummonDomains,977            [domain]: {978              firstSummonedAt: existing?.firstSummonedAt ?? now,979              summonCount: (existing?.summonCount ?? 0) + 1,980              lastSummonedAt: now,981            },982          },983        });984        return { ok: true };985      }986      case "DECLINE_CARD_SAVE": {987        const { last4, expMonth, expYear } = msg.payload as { last4: string; expMonth: string; expYear: string };988        await vault.declineCardSaveOffer(last4, expMonth, expYear);989        return { ok: true };990      }991      case "IS_CARD_DECLINED": {992        const { last4, expMonth, expYear } = msg.payload as { last4: string; expMonth: string; expYear: string };993        const declined = await vault.isCardDeclined(last4, expMonth, expYear);994        return { ok: true, data: declined };995      }996      case "INITIATE_FIREFOX_PASSKEY_CREATE": {997        const { rpId, rpName, userName, userDisplayName } = (msg.payload ?? {}) as {998          rpId?: string;999          rpName?: string;1000          userName?: string;1001          userDisplayName?: string;1002        };1003        if (!rpId || !userName) return { ok: false, error: "rpId and userName required" };1004        return await initiateFirefoxPasskeyCreate({1005          rpId,1006          rpName: rpName ?? rpId,1007          userName,1008          userDisplayName,1009        });1010      }10111012      case "COMPLETE_FIREFOX_PASSKEY_CREATE": {1013        const payload = msg.payload as Parameters<typeof completeFirefoxPasskeyCreate>[0] | undefined;1014        if (!payload) return { ok: false, error: "missing payload" };1015        return await completeFirefoxPasskeyCreate(payload);1016      }10171018      case "PASSKEY_OFFER_DECLINE": {1019        const { domain } = (msg.payload ?? {}) as { domain?: string };1020        if (!domain) return { ok: false, error: "domain required" };1021        await recordPasskeyOfferDecline(domain);1022        return { ok: true };1023      }10241025      case "GET_PASSKEY_OFFER_DECLINED": {1026        const { domain } = (msg.payload ?? {}) as { domain?: string };1027        if (!domain) return { ok: false, error: "domain required" };1028        return { ok: true, data: await isPasskeyOfferDeclined(domain) };1029      }10301031      case "PASSKEY_HAS_CREDENTIALS": {1032        const payload = msg.payload as {1033          rpId?: string;1034          allowCredentials?: Array<{ id: string; type?: string }>;1035        } | undefined;1036        if (!payload?.rpId) return { ok: false, error: "rpId required" };1037        return await handlePasskeyHasCredentials({1038          rpId: payload.rpId,1039          allowCredentials: payload.allowCredentials ?? [],1040        });1041      }10421043      case "PASSKEY_CREATE": {1044        const payload = msg.payload as Parameters<typeof handleFirefoxPasskeyCreate>[0] | undefined;1045        if (!payload?.rpId || !payload?.userName) {1046          return { ok: false, error: "rpId and userName required" };1047        }1048        return await handleFirefoxPasskeyCreate(payload);1049      }10501051      case "PASSKEY_GET": {1052        const payload = msg.payload as Parameters<typeof handleFirefoxPasskeyGet>[0] | undefined;1053        if (!payload?.rpId) return { ok: false, error: "rpId required" };1054        return await handleFirefoxPasskeyGet(payload);1055      }10561057      case "GET_PASSKEY_FOR_DOMAIN": {1058        const { domain } = (msg.payload ?? {}) as { domain?: string };1059        if (!domain) return { ok: false, error: "domain required" };1060        if (!vault.isUnlocked()) return { ok: true, data: null };1061        const match = vault1062          .getEntries()1063          .find((entry) => entry.passkey?.rpId === domain);1064        if (!match || !match.passkey) return { ok: true, data: null };1065        // Slim shape — only the fields State 11 needs. Never expose private1066        // key material, even though this is locked behind isUnlocked.1067        return {1068          ok: true,1069          data: {1070            rpId: match.passkey.rpId,1071            userName: match.passkey.userName,1072            browser: match.passkey.browser,1073          },1074        };1075      }10761077      case "DESTROY_VAULT": {1078        // Irreversible by design. Lock zeroes the derived key + in-memory entries;1079        // storage.local.clear() wipes every Peach key (slots, settings, license,1080        // onboarded flag, history, sync state, declined cards, recall, etc.);1081        // session.clear() wipes pending passkey requests + pro-notice queues.1082        // Caller (Panic.tsx) handles UI navigation back to onboarding.1083        vault.lock();1084        await storageClear();1085        // Belt-and-suspenders: storage.local.clear() already wipes1086        // peach_vault_history, but if storage.ts ever routes history to a1087        // different backend (e.g. Capacitor secure storage on Android) the1088        // explicit clear keeps the invariant that Panic leaves no recoverable1089        // vault state behind.1090        await vault.clearVaultHistory();1091        if (!Capacitor.isNativePlatform() && chrome.storage.session) {1092          await chrome.storage.session.clear();1093        }1094        return { ok: true };1095      }10961097      case "SUBMIT_FEEDBACK": {1098        const { category, message, version, browser } = msg.payload as {1099          category: string;1100          message: string;1101          version: string;1102          browser: string;1103        };1104        if (!message.trim()) return { ok: false, error: "message is empty" };1105        if (!FEEDBACK_ENDPOINT) return { ok: true };1106        if (!isAllowedCanaryWebhookUrl(FEEDBACK_ENDPOINT)) {1107          return { ok: false, error: "invalid feedback endpoint" };1108        }1109        try {1110          const res = await fetch(FEEDBACK_ENDPOINT, {1111            method: "POST",1112            headers: { "Content-Type": "application/json" },1113            body: JSON.stringify({ category, message, version, browser, source: "peach-extension" }),1114          });1115          return { ok: res.ok, error: res.ok ? undefined : `HTTP ${res.status}` };1116        } catch (err) {1117          return { ok: false, error: err instanceof Error ? err.message : "network error" };1118        }1119      }1120      default:1121        return { ok: false, error: "unknown message type" };1122    }1123  } catch (err) {1124    return {1125      ok: false,1126      error: err instanceof Error ? err.message : "operation failed",1127    };1128  }1129}11301131/** Notify all content scripts that the vault just became available. */1132function broadcastToContentScripts(message: { type: string }): void {1133  if (Capacitor.isNativePlatform() || !chrome.tabs?.query) return;1134  chrome.tabs.query({}, (tabs) => {1135    for (const tab of tabs) {1136      if (tab.id !== undefined) {1137        chrome.tabs.sendMessage(tab.id, message).catch(() => {1138          // Tab may not have a content script — silently ignore1139        });1140      }1141    }1142  });1143}11441145function shouldRefreshAutoLock(type: MessageType): boolean {1146  return (1147    type !== "HAS_VAULT" &&1148    type !== "IS_UNLOCKED" &&1149    type !== "GET_VAULT_STATUS" &&1150    type !== "LOCK" &&1151    type !== "UPDATE_SETTINGS" &&1152    type !== "GET_PENDING_PASSKEY" &&1153    type !== "GET_PASSKEY_PROVIDER_STATE" &&1154    type !== "DECLINE_CARD_SAVE" &&1155    type !== "IS_CARD_DECLINED" &&1156    type !== "SUBMIT_FEEDBACK"1157  );1158}11591160function isAllowedCanaryWebhookUrl(value: string): boolean {1161  try {1162    const url = new URL(value);1163    if (url.protocol !== "https:") return false;11641165    const hostname = url.hostname.toLowerCase();1166    if (1167      hostname === "localhost" ||1168      hostname.endsWith(".localhost") ||1169      isPrivateIpv4(hostname) ||1170      isPrivateIpv6(hostname)1171    ) {1172      return false;1173    }11741175    return true;1176  } catch {1177    return false;1178  }1179}11801181function isPrivateIpv4(hostname: string): boolean {1182  if (PRIVATE_IPV4_RANGES.some((range) => hostname.startsWith(range.prefix))) {1183    return true;1184  }11851186  const octets = hostname.split(".").map((part) => Number(part));1187  if (octets.length !== 4 || octets.some((octet) => !Number.isInteger(octet) || octet < 0 || octet > 255)) {1188    return false;1189  }11901191  return octets[0] === 172 && octets[1] >= 16 && octets[1] <= 31;1192}11931194function isPrivateIpv6(hostname: string): boolean {1195  const normalized = hostname.replace(/^\[|\]$/g, "").toLowerCase();1196  return (1197    normalized === "::1" ||1198    normalized.startsWith("fc") ||1199    normalized.startsWith("fd") ||1200    normalized.startsWith("fe80:")1201  );1202}