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        const entry = await vault.addEntry(msg.payload as any);165        return { ok: true, data: entry };166      }167      case "BATCH_ADD_ENTRIES": {168        const { entries } = msg.payload as { entries: any[] };169        const added = await vault.batchAddEntries(entries);170        return { ok: true, data: added };171      }172      case "RESTORE_ENTRIES": {173        const { entries, mode, settings } = msg.payload as {174          entries: any[];175          mode: "replace" | "merge";176          settings?: vault.VaultSettings;177        };178        const summary = await vault.restoreEntries(entries, mode);179        if (settings && typeof settings === "object") {180          await vault.updateSettings(settings);181        }182        return { ok: true, data: summary };183      }184      case "CLEAR_VAULT_ENTRIES": {185        await vault.clearVaultEntries("REPLACE_ALL");186        return { ok: true };187      }188      case "LIST_VAULT_SNAPSHOTS": {189        const snapshots = await vault.listSnapshots();190        return { ok: true, data: snapshots };191      }192      case "RESTORE_VAULT_SNAPSHOT": {193        const { index, password } = msg.payload as { index: number; password: string };194        const ok = await vault.restoreFromSnapshot(index, password);195        if (ok) broadcastToContentScripts({ type: "VAULT_UNLOCKED" });196        return { ok };197      }198      case "COUNT_DUPLICATES": {199        return { ok: true, data: vault.countDuplicates() };200      }201      case "DEDUPLICATE_ENTRIES": {202        const removed = await vault.deduplicateEntries();203        return { ok: true, data: removed };204      }205      case "UPDATE_ENTRY": {206        const { id, patch } = msg.payload as any;207        await vault.updateEntry(id, patch);208        return { ok: true };209      }210      case "ADD_ADDITIONAL_URL": {211        const { id, url } = msg.payload as { id: string; url: string };212        const trimmed = typeof url === "string" ? url.trim() : "";213        if (!trimmed) return { ok: false, error: "url required" };214        const existing = vault.getEntryById(id);215        if (!existing) return { ok: false, error: "entry not found" };216        if (existing.type !== "login") return { ok: false, error: "login entries only" };217        const merged = [...(existing.additionalUrls ?? []), trimmed];218        await vault.updateEntry(id, { additionalUrls: merged });219        return { ok: true };220      }221      case "DELETE_ENTRY": {222        const { id } = msg.payload as { id: string };223        await vault.deleteEntry(id);224        return { ok: true };225      }226      case "GET_DELETED_ENTRIES":227        return { ok: true, data: vault.getDeletedEntries() };228      case "RESTORE_ENTRY": {229        const { id } = msg.payload as { id: string };230        await vault.restoreEntry(id);231        return { ok: true };232      }233      case "PURGE_ENTRY": {234        const { id } = msg.payload as { id: string };235        await vault.purgeEntry(id);236        return { ok: true };237      }238      case "PURGE_EXPIRED_TRASH": {239        const { retentionMs } = msg.payload as { retentionMs: number };240        const purged = await vault.purgeExpiredTrash(retentionMs);241        return { ok: true, data: purged };242      }243      case "AUTOFILL_QUERY": {244        if (!vault.isUnlocked()) {245          return { ok: false, error: "VAULT_LOCKED" };246        }247        const { domain, includeAll, kind } = msg.payload as {248          domain: string;249          includeAll?: boolean;250          kind?: "login" | "card";251        };252        // kind="card": return saved cards as compact summaries for the253        // inline card silver platter. Cards are not domain-scoped — every254        // saved card is a candidate on every checkout page — so domain is255        // ignored when kind === "card".256        if (kind === "card") {257          const cards = vault.getEntries().filter((e) => e.type === "card");258          return {259            ok: true,260            data: cards.map((e) => ({261              id: e.id,262              title: e.cardNickname || e.title,263              cardholderName: e.cardholderName,264              last4: e.last4,265              expMonth: e.expMonth,266              expYear: e.expYear,267              network: e.network,268            })),269          };270        }271        // The inline selector fills username+password into a form. Passkey-272        // only entries have no password to fill; sign-in for those goes273        // through the WebAuthn path instead. Filter them out everywhere so274        // the user doesn't see four "GitHub" rows that mostly do nothing.275        // Notes and cards never belonged here either.276        const matches = (277          includeAll278            ? vault279                .getEntries()280                .filter((entry) => entry.type !== "note" && entry.type !== "card")281            : vault.queryDomain(domain)282        ).filter((entry) => !isPasskeyOnly(entry));283        return {284          ok: true,285          data: matches.map((e) =>286            includeAll287              ? {288                  id: e.id,289                  title: e.title,290                  hasPasskey: e.passkey !== undefined,291                }292              : {293                  id: e.id,294                  title: e.title,295                  username: e.username,296                  url: e.url,297                  hasTotp: Boolean(e.totp),298                  hasPasskey: e.passkey !== undefined,299                }300          ),301        };302      }303      case "GET_ENTRY_FOR_FILL": {304        if (!vault.isUnlocked()) return { ok: false, error: "vault locked" };305        const { id } = msg.payload as { id: string };306        const entry = vault.getEntryById(id);307        if (!entry) return { ok: false, error: "entry not found" };308        // Passkey-only entries (passkey credential, no password) cannot be309        // filled into a form — sign-in goes through the WebAuthn path. A310        // login that ALSO has a passkey is still fillable for its password.311        if (isPasskeyOnly(entry)) return { ok: false, error: "passkey not fillable" };312        // Strip the passkey credential from the response — content scripts313        // never need the private key, and there's no reason to expose the314        // public credential metadata over the boundary either.315        const { passkey: _strippedPasskey, ...safeEntry } = entry;316        return { ok: true, data: safeEntry };317      }318      case "COPY": {319        const { text, label, alreadyWritten } = msg.payload as {320          text: string;321          label: string;322          alreadyWritten?: boolean;323        };324        await copyToClipboard(text, label, Boolean(alreadyWritten));325        return { ok: true };326      }327      case "CHECK_BREACH": {328        const { password } = msg.payload as { password: string };329        const count = await vault.checkBreach(password);330        return { ok: true, data: count };331      }332      case "CHECK_ALL_BREACHES": {333        const allEntries = vault.getEntries();334        const results: Record<string, number> = {};335        for (const entry of allEntries) {336          if (entry.type === "note") continue;337          if (!entry.password) continue;338          results[entry.id] = await vault.checkBreach(entry.password);339          // Small delay — be a good citizen to the HIBP API340          await new Promise((r) => setTimeout(r, 200));341        }342        // Persist any non-zero counts back to entries343        for (const [id, count] of Object.entries(results)) {344          const entry = vault.getEntryById(id);345          if (entry && (entry.breach ?? 0) !== count) {346            await vault.updateEntry(id, { breach: count > 0 ? count : undefined });347          }348        }349        return { ok: true, data: results };350      }351      case "GET_SETTINGS":352        return { ok: true, data: await vault.ensureSettingsLoaded() };353      case "UPDATE_SETTINGS": {354        const patch = msg.payload as Record<string, unknown>;355        await vault.updateSettings(patch as any);356        if (typeof patch.autoLockMinutes === "number") {357          await setupAutoLock();358          if (vault.isUnlocked()) touchAutoLock();359        }360        return { ok: true };361      }362      case "GET_PENDING_PASSKEY":363        return { ok: true, data: await getPendingPasskeyRequest() };364      case "APPROVE_PASSKEY": {365        const { requestId } = msg.payload as { requestId: number };366        await resolvePendingPasskeyRequest(requestId, true);367        return { ok: true };368      }369      case "DENY_PASSKEY": {370        const { requestId } = msg.payload as { requestId: number };371        await resolvePendingPasskeyRequest(requestId, false);372        return { ok: true };373      }374      case "GET_PASSKEYS":375        return {376          ok: true,377          data: vault.getEntries().filter((entry) => entry.passkey !== undefined),378        };379      case "DELETE_PASSKEY": {380        const { id } = msg.payload as { id: string };381        await vault.deleteEntry(id);382        return { ok: true };383      }384      case "GET_PASSKEY_PROVIDER_STATE":385        return { ok: true, data: await getPasskeyProviderState() };386      case "SET_PASSKEY_PROVIDER_ENABLED": {387        const { enabled } = msg.payload as { enabled: boolean };388        // Disabling is always free; gating fires only when a free user is389        // trying to turn passkey interception on.390        if (enabled) {391          const gate = await requirePro("passkeys");392          if (!gate.allowed) return { ok: false, error: "pro_required" };393        }394        return { ok: true, data: await setPasskeyProviderEnabled(enabled) };395      }396      case "FIRE_CANARY_PING": {397        const { webhookUrl, entryTitle, trigger } = msg.payload as {398          webhookUrl: string;399          entryTitle: string;400          trigger: "password_copied" | "username_copied" | "autofilled" | "submitted" | "test";401        };402        if (!isAllowedCanaryWebhookUrl(webhookUrl)) {403          return { ok: false, error: "invalid webhook url" };404        }405        const body = JSON.stringify({406          event: trigger === "test" ? "peach_canary_test" : "peach_canary_accessed",407          entry: entryTitle,408          trigger,409          timestamp: new Date().toISOString(),410          source: "peach-extension",411        });412        if (trigger === "test") {413          // Permitted outbound fetch: user-configured canary alert endpoint414          // (validated by isAllowedCanaryWebhookUrl above). This is the415          // only non-HIBP outbound call in the extension — see416          // Projects.md §3.7. Test pings are awaited so the UI can show417          // success/failure.418          try {419            const res = await fetch(webhookUrl, {420              method: "POST",421              headers: { "Content-Type": "application/json" },422              body,423            });424            return { ok: res.ok, error: res.ok ? undefined : `HTTP ${res.status}` };425          } catch (err) {426            return { ok: false, error: err instanceof Error ? err.message : "network error" };427          }428        }429        // Non-test triggers are fire-and-forget430        fetch(webhookUrl, {431          method: "POST",432          headers: { "Content-Type": "application/json" },433          body,434        }).catch(() => {});435        return { ok: true };436      }437      case "ACTIVATE_LICENSE": {438        const { key } = msg.payload as { key: string };439        const licenseInfo = await activateLicense(key);440        return { ok: true, data: licenseInfo };441      }442      case "GET_LICENSE": {443        const licenseInfo = await getLicenseInfo();444        return { ok: true, data: licenseInfo };445      }446      case "GET_LICENSE_KEY": {447        const key = await getLicenseKey();448        return { ok: true, data: key };449      }450      case "DEACTIVATE_LICENSE": {451        await deactivateLicense();452        return { ok: true };453      }454      case "SHOULD_PLAY_CELEBRATION": {455        const should = await shouldPlayCelebration();456        return { ok: true, data: should };457      }458      case "MARK_CELEBRATION_PLAYED": {459        await markCelebrationPlayed();460        return { ok: true };461      }462      case "OPEN_PRO_GATE": {463        // Content script requests: open popup and navigate to License section.464        const { feature } = (msg.payload ?? {}) as { feature?: string };465        if (chrome.storage.session) {466          await chrome.storage.session.set({ pendingProGate: { feature: feature ?? "passkeys" } });467        }468        try { await chrome.action.openPopup(); } catch { /* badge fallback */ }469        return { ok: true };470      }471      case "GET_IDENTITIES": {472        if (!vault.isUnlocked()) return { ok: false, error: "vault locked" };473        return { ok: true, data: vault.getIdentities() };474      }475      case "GET_ADVANCED_HEALTH_REPORT": {476        const gate = await requirePro("advanced_health");477        if (!gate.allowed) return { ok: false, error: "pro_required" };478        if (!vault.isUnlocked()) return { ok: false, error: "vault locked" };479        const report = await buildAdvancedHealthReport(vault.getEntries());480        return { ok: true, data: report };481      }482      case "INITIATE_PASSWORD_CHANGE": {483        const gate = await requirePro("smart_password_change");484        if (!gate.allowed) return { ok: false, error: "pro_required" };485        if (!vault.isUnlocked()) return { ok: false, error: "vault locked" };486        const { id } = msg.payload as { id: string };487        const entry = vault.getEntryById(id);488        if (!entry) return { ok: false, error: "entry not found" };489        const url = resolveResetUrl(entry);490        if (!url) return { ok: false, error: "no reset url" };491        try {492          await chrome.tabs.create({ url });493          return { ok: true, data: { url } };494        } catch (err) {495          return {496            ok: false,497            error: err instanceof Error ? err.message : "failed to open tab",498          };499        }500      }501      case "IS_DURESS_ENABLED": {502        const enabled = await vault.isDuressEnabled();503        return { ok: true, data: enabled };504      }505      case "SETUP_DURESS": {506        const { duressPassword } = msg.payload as { duressPassword: string };507        await vault.setupDuress(duressPassword);508        return { ok: true };509      }510      case "DISABLE_DURESS": {511        await vault.disableDuress();512        return { ok: true };513      }514      case "VERIFY_MAIN_PASSWORD": {515        const { password } = msg.payload as { password: string };516        const ok = await vault.verifyMainPassword(password);517        return { ok: true, data: ok };518      }519      case "CHANGE_PASSWORD": {520        const { currentPassword, newPassword } = msg.payload as {521          currentPassword: string;522          newPassword: string;523        };524        const changed = await vault.changePassword(currentPassword, newPassword);525        return changed526          ? { ok: true }527          : { ok: false, error: "incorrect current password" };528      }529      case "GET_SITE_PASSWORD_POLICY": {530        const [tab] = await chrome.tabs.query({ active: true, currentWindow: true });531        if (!tab?.id) return { ok: true, data: null };532        try {533          const response = await chrome.tabs.sendMessage(tab.id, {534            type: "GET_SITE_PASSWORD_POLICY",535          });536          return (response as MessageResponse) ?? { ok: true, data: null };537        } catch {538          return { ok: true, data: null };539        }540      }541      case "GET_SYNC_STATE": {542        const { getPairedDevices, getTrustedNetworks } = await import('./sync-storage');543        const { isOnTailscale } = await import('./sync-network');544        const { isProUser } = await import('./license');545        const pairedDevices = await getPairedDevices();546        const trustedNetworks = await getTrustedNetworks();547        const tailscale = await isOnTailscale();548        const pro = await isProUser();549        550        let status: SyncStatus = "offline";551        if (tailscale || trustedNetworks.some((n: { isTailscale?: boolean }) => !n.isTailscale)) {552          if (pairedDevices.length === 0) {553            status = "no_peers";554          } else {555            status = "synced";556          }557        } else {558          status = "not_trusted";559        }560        561        return { ok: true, data: { pairedDevices, trustedNetworks, status, isPro: pro } };562      }563      case "TRIGGER_SYNC": {564        const gate = await requirePro("sync");565        if (!gate.allowed) return { ok: false, error: "pro_required" };566        return { ok: true };567      }568      case "START_PAIRING": {569        const gate = await requirePro("sync");570        if (!gate.allowed) return { ok: false, error: "pro_required" };571        return { ok: true };572      }573      case "CANCEL_PAIRING": {574        return { ok: true };575      }576      case "ACCEPT_PAIRING": {577        const gate = await requirePro("sync");578        if (!gate.allowed) return { ok: false, error: "pro_required" };579        return { ok: true };580      }581      case "REMOVE_PAIRED_DEVICE": {582        const { deviceId } = msg.payload as { deviceId: string };583        const { removePairedDevice } = await import('./sync-storage');584        await removePairedDevice(deviceId);585        return { ok: true };586      }587      case "REMOVE_TRUSTED_NETWORK": {588        const { ssid, bssid, isTailscale } = msg.payload as any;589        const { removeTrustedNetwork, getTrustedNetworks } = await import('./sync-storage');590        const networks = await getTrustedNetworks();591        const network = networks.find((n: { ssid?: string; bssid?: string; isTailscale?: boolean }) => 592          (isTailscale ? n.isTailscale : n.ssid === ssid) && 593          (!bssid || n.bssid === bssid)594        );595        if (network) {596          await removeTrustedNetwork(network.addedAt);597        }598        return { ok: true };599      }600      case "MARK_NETWORK_TRUSTED": {601        const { addTrustedNetwork } = await import('./sync-storage');602        const { getCurrentNetwork } = await import('./sync-network');603        const network = await getCurrentNetwork();604        await addTrustedNetwork({605          ssid: network.ssid,606          bssid: network.bssid,607          isTailscale: network.isTailscale,608          addedAt: Date.now(),609        });610        return { ok: true };611      }612      case "RECORD_MANUAL_SUMMON": {613        const { domain } = msg.payload as { domain: string };614        const settings = vault.getSettings();615        const existing = settings.manualSummonDomains?.[domain];616        const now = Date.now();617        await vault.updateSettings({618          manualSummonDomains: {619            ...settings.manualSummonDomains,620            [domain]: {621              firstSummonedAt: existing?.firstSummonedAt ?? now,622              summonCount: (existing?.summonCount ?? 0) + 1,623              lastSummonedAt: now,624            },625          },626        });627        return { ok: true };628      }629      case "DECLINE_CARD_SAVE": {630        const { last4, expMonth, expYear } = msg.payload as { last4: string; expMonth: string; expYear: string };631        await vault.declineCardSaveOffer(last4, expMonth, expYear);632        return { ok: true };633      }634      case "IS_CARD_DECLINED": {635        const { last4, expMonth, expYear } = msg.payload as { last4: string; expMonth: string; expYear: string };636        const declined = await vault.isCardDeclined(last4, expMonth, expYear);637        return { ok: true, data: declined };638      }639      case "INITIATE_FIREFOX_PASSKEY_CREATE": {640        const { rpId, rpName, userName, userDisplayName } = (msg.payload ?? {}) as {641          rpId?: string;642          rpName?: string;643          userName?: string;644          userDisplayName?: string;645        };646        if (!rpId || !userName) return { ok: false, error: "rpId and userName required" };647        return await initiateFirefoxPasskeyCreate({648          rpId,649          rpName: rpName ?? rpId,650          userName,651          userDisplayName,652        });653      }654655      case "COMPLETE_FIREFOX_PASSKEY_CREATE": {656        const payload = msg.payload as Parameters<typeof completeFirefoxPasskeyCreate>[0] | undefined;657        if (!payload) return { ok: false, error: "missing payload" };658        return await completeFirefoxPasskeyCreate(payload);659      }660661      case "PASSKEY_OFFER_DECLINE": {662        const { domain } = (msg.payload ?? {}) as { domain?: string };663        if (!domain) return { ok: false, error: "domain required" };664        await recordPasskeyOfferDecline(domain);665        return { ok: true };666      }667668      case "GET_PASSKEY_OFFER_DECLINED": {669        const { domain } = (msg.payload ?? {}) as { domain?: string };670        if (!domain) return { ok: false, error: "domain required" };671        return { ok: true, data: await isPasskeyOfferDeclined(domain) };672      }673674      case "PASSKEY_HAS_CREDENTIALS": {675        const payload = msg.payload as {676          rpId?: string;677          allowCredentials?: Array<{ id: string; type?: string }>;678        } | undefined;679        if (!payload?.rpId) return { ok: false, error: "rpId required" };680        return await handlePasskeyHasCredentials({681          rpId: payload.rpId,682          allowCredentials: payload.allowCredentials ?? [],683        });684      }685686      case "PASSKEY_CREATE": {687        const payload = msg.payload as Parameters<typeof handleFirefoxPasskeyCreate>[0] | undefined;688        if (!payload?.rpId || !payload?.userName) {689          return { ok: false, error: "rpId and userName required" };690        }691        return await handleFirefoxPasskeyCreate(payload);692      }693694      case "PASSKEY_GET": {695        const payload = msg.payload as Parameters<typeof handleFirefoxPasskeyGet>[0] | undefined;696        if (!payload?.rpId) return { ok: false, error: "rpId required" };697        return await handleFirefoxPasskeyGet(payload);698      }699700      case "GET_PASSKEY_FOR_DOMAIN": {701        const { domain } = (msg.payload ?? {}) as { domain?: string };702        if (!domain) return { ok: false, error: "domain required" };703        if (!vault.isUnlocked()) return { ok: true, data: null };704        const match = vault705          .getEntries()706          .find((entry) => entry.passkey?.rpId === domain);707        if (!match || !match.passkey) return { ok: true, data: null };708        // Slim shape — only the fields State 11 needs. Never expose private709        // key material, even though this is locked behind isUnlocked.710        return {711          ok: true,712          data: {713            rpId: match.passkey.rpId,714            userName: match.passkey.userName,715            browser: match.passkey.browser,716          },717        };718      }719720      case "DESTROY_VAULT": {721        // Irreversible by design. Lock zeroes the derived key + in-memory entries;722        // storage.local.clear() wipes every Peach key (slots, settings, license,723        // onboarded flag, snapshots, sync state, declined cards, recall, etc.);724        // session.clear() wipes pending passkey requests + pro-notice queues.725        // Caller (Panic.tsx) handles UI navigation back to onboarding.726        vault.lock();727        await chrome.storage.local.clear();728        if (chrome.storage.session) {729          await chrome.storage.session.clear();730        }731        return { ok: true };732      }733734      case "SUBMIT_FEEDBACK": {735        const { category, message, version, browser } = msg.payload as {736          category: string;737          message: string;738          version: string;739          browser: string;740        };741        if (!message.trim()) return { ok: false, error: "message is empty" };742        if (!FEEDBACK_ENDPOINT) return { ok: true };743        if (!isAllowedCanaryWebhookUrl(FEEDBACK_ENDPOINT)) {744          return { ok: false, error: "invalid feedback endpoint" };745        }746        try {747          const res = await fetch(FEEDBACK_ENDPOINT, {748            method: "POST",749            headers: { "Content-Type": "application/json" },750            body: JSON.stringify({ category, message, version, browser, source: "peach-extension" }),751          });752          return { ok: res.ok, error: res.ok ? undefined : `HTTP ${res.status}` };753        } catch (err) {754          return { ok: false, error: err instanceof Error ? err.message : "network error" };755        }756      }757      default:758        return { ok: false, error: "unknown message type" };759    }760  } catch (err) {761    return {762      ok: false,763      error: err instanceof Error ? err.message : "operation failed",764    };765  }766}767768/** Notify all content scripts that the vault just became available. */769function broadcastToContentScripts(message: { type: string }): void {770  chrome.tabs.query({}, (tabs) => {771    for (const tab of tabs) {772      if (tab.id !== undefined) {773        chrome.tabs.sendMessage(tab.id, message).catch(() => {774          // Tab may not have a content script — silently ignore775        });776      }777    }778  });779}780781function shouldRefreshAutoLock(type: MessageType): boolean {782  return (783    type !== "HAS_VAULT" &&784    type !== "IS_UNLOCKED" &&785    type !== "GET_VAULT_STATUS" &&786    type !== "LOCK" &&787    type !== "UPDATE_SETTINGS" &&788    type !== "GET_PENDING_PASSKEY" &&789    type !== "GET_PASSKEY_PROVIDER_STATE" &&790    type !== "DECLINE_CARD_SAVE" &&791    type !== "IS_CARD_DECLINED" &&792    type !== "SUBMIT_FEEDBACK"793  );794}795796function isAllowedCanaryWebhookUrl(value: string): boolean {797  try {798    const url = new URL(value);799    if (url.protocol !== "https:") return false;800801    const hostname = url.hostname.toLowerCase();802    if (803      hostname === "localhost" ||804      hostname.endsWith(".localhost") ||805      isPrivateIpv4(hostname) ||806      isPrivateIpv6(hostname)807    ) {808      return false;809    }810811    return true;812  } catch {813    return false;814  }815}816817function isPrivateIpv4(hostname: string): boolean {818  if (PRIVATE_IPV4_RANGES.some((range) => hostname.startsWith(range.prefix))) {819    return true;820  }821822  const octets = hostname.split(".").map((part) => Number(part));823  if (octets.length !== 4 || octets.some((octet) => !Number.isInteger(octet) || octet < 0 || octet > 255)) {824    return false;825  }826827  return octets[0] === 172 && octets[1] >= 16 && octets[1] <= 31;828}829830function isPrivateIpv6(hostname: string): boolean {831  const normalized = hostname.replace(/^\[|\]$/g, "").toLowerCase();832  return (833    normalized === "::1" ||834    normalized.startsWith("fc") ||835    normalized.startsWith("fd") ||836    normalized.startsWith("fe80:")837  );838}