peach-browser / src / background @ f400fcc5c4c3

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 {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 { Capacitor } from "@capacitor/core";40import { storageClear } from "../shared/storage";41import type {42  Message,43  MessageResponse,44  MessageType,45  ProFeature,46} from "../shared/types";47import { isPasskeyOnly } from "../shared/types";48import type { SyncStatus } from "../shared/sync-types";4950/**51 * The single Pro gate. Every gated handler calls this first; the broadcast52 * lets the popup react (navigate to the License section, highlight the53 * relevant feature). Background never touches the popup view directly —54 * the popup owns navigation. See Projects.md "Pro gate rule".55 */56async function requirePro(57  feature: ProFeature,58  trigger: "user" | "background" = "user"59): Promise<{ allowed: boolean }> {60  if (await isProUser()) return { allowed: true };6162  if (trigger === "user") {63    // User deliberately triggered this feature — redirect the popup immediately.64    if (!Capacitor.isNativePlatform()) {65      chrome.runtime66        .sendMessage({ type: "PRO_GATE_TRIGGERED", payload: { feature } })67        .catch(() => {68          // Popup may be closed — the gate signal is best-effort.69        });70    }71  } else {72    // Background trigger (e.g. passive sync initiation) — no popup is open.73    // Queue a notice so the next popup open shows a soft banner instead of74    // silently failing.75    if (!Capacitor.isNativePlatform() && chrome.storage.session) {76      chrome.storage.session77        .set({ pendingProNotice: { feature, triggeredAt: Date.now() } })78        .catch(() => {});79    }80  }8182  return { allowed: false };83}8485const PRIVATE_IPV4_RANGES = [86  { prefix: "10." },87  { prefix: "127." },88  { prefix: "169.254." },89  { prefix: "192.168." },90];9192// Empty disables network submission while the UI continues to function as a93// no-op (the handler returns ok:true without calling fetch). When set, the94// URL is validated by `isAllowedCanaryWebhookUrl` before any request, so the95// same private-IP/HTTPS rules that gate canary webhooks apply here.96const FEEDBACK_ENDPOINT = "";9798export function setupMessageHandler(): void {99  chrome.runtime.onMessage.addListener(100    (msg: unknown, sender, sendResponse) => {101      if (!isMessage(msg)) {102        sendResponse({ ok: false, error: "invalid message" });103        return true;104      }105      handleMessage(msg, sender)106        .then(sendResponse)107        .catch((err) =>108          sendResponse({109            ok: false,110            error: err instanceof Error ? err.message : String(err),111          })112        );113      return true;114    }115  );116}117118function isMessage(m: unknown): m is Message {119  return typeof m === "object" && m !== null && "type" in m;120}121122export async function handleMessage(123  msg: Message,124  sender: Partial<chrome.runtime.MessageSender> = {}125): Promise<MessageResponse> {126  try {127    // Validate sender — only allow messages from our extension pages/scripts.128    // `sender.id` is undefined for messages originating from extension UI129    // (popup/options), which is legitimate; reject only when it is defined130    // and does not match our extension id.131    if (132      !Capacitor.isNativePlatform() &&133      sender.id !== undefined &&134      sender.id !== chrome.runtime.id135    ) {136      return { ok: false, error: "invalid sender" };137    }138139    if (shouldRefreshAutoLock(msg.type) && vault.isUnlocked()) {140      touchAutoLock();141    }142143    switch (msg.type) {144      case "CREATE_VAULT": {145        const { password } = msg.payload as { password: string };146        await vault.createVault(password);147        await setupAutoLock();148        broadcastToContentScripts({ type: "VAULT_UNLOCKED" });149        return { ok: true };150      }151      case "UNLOCK": {152        const { password } = msg.payload as { password: string };153        const ok = await vault.unlock(password);154        if (ok) {155          await setupAutoLock();156          broadcastToContentScripts({ type: "VAULT_UNLOCKED" });157        }158        return { ok };159      }160      case "LOCK":161        vault.lock();162        return { ok: true };163      case "IS_UNLOCKED":164        return { ok: true, data: vault.isUnlocked() };165      case "GET_VAULT_STATUS":166        return { ok: true, unlocked: vault.isUnlocked() };167      case "HAS_VAULT":168        return { ok: true, data: await vault.hasVault() };169      case "GET_ENTRIES":170        return { ok: true, data: vault.getEntries() };171      case "ADD_ENTRY": {172        if (!vault.isUnlocked()) return { ok: false, error: "vault locked" };173        const entry = await vault.addEntry(msg.payload as any);174        return { ok: true, data: entry };175      }176      case "BATCH_ADD_ENTRIES": {177        const { entries } = msg.payload as { entries: any[] };178        const added = await vault.batchAddEntries(entries);179        return { ok: true, data: added };180      }181      case "RESTORE_ENTRIES": {182        const { entries, mode, settings } = msg.payload as {183          entries: any[];184          mode: "replace" | "merge";185          settings?: vault.VaultSettings;186        };187        const summary = await vault.restoreEntries(entries, mode);188        if (settings && typeof settings === "object") {189          await vault.updateSettings(settings);190        }191        return { ok: true, data: summary };192      }193      case "CLEAR_VAULT_ENTRIES": {194        await vault.clearVaultEntries("REPLACE_ALL");195        return { ok: true };196      }197      case "LIST_VAULT_SNAPSHOTS": {198        const snapshots = await vault.listSnapshots();199        return { ok: true, data: snapshots };200      }201      case "RESTORE_VAULT_SNAPSHOT": {202        const { index, password } = msg.payload as { index: number; password: string };203        const ok = await vault.restoreFromSnapshot(index, password);204        if (ok) broadcastToContentScripts({ type: "VAULT_UNLOCKED" });205        return { ok };206      }207      case "COUNT_DUPLICATES": {208        return { ok: true, data: vault.countDuplicates() };209      }210      case "DEDUPLICATE_ENTRIES": {211        const removed = await vault.deduplicateEntries();212        return { ok: true, data: removed };213      }214      case "UPDATE_ENTRY": {215        const { id, patch } = msg.payload as any;216        await vault.updateEntry(id, patch);217        return { ok: true };218      }219      case "ADD_ADDITIONAL_URL": {220        const { id, url } = msg.payload as { id: string; url: string };221        const trimmed = typeof url === "string" ? url.trim() : "";222        if (!trimmed) return { ok: false, error: "url required" };223        const existing = vault.getEntryById(id);224        if (!existing) return { ok: false, error: "entry not found" };225        if (existing.type !== "login") return { ok: false, error: "login entries only" };226        const merged = [...(existing.additionalUrls ?? []), trimmed];227        await vault.updateEntry(id, { additionalUrls: merged });228        return { ok: true };229      }230      case "DELETE_ENTRY": {231        const { id } = msg.payload as { id: string };232        await vault.deleteEntry(id);233        return { ok: true };234      }235      case "GET_DELETED_ENTRIES":236        return { ok: true, data: vault.getDeletedEntries() };237      case "RESTORE_ENTRY": {238        const { id } = msg.payload as { id: string };239        await vault.restoreEntry(id);240        return { ok: true };241      }242      case "PURGE_ENTRY": {243        const { id } = msg.payload as { id: string };244        await vault.purgeEntry(id);245        return { ok: true };246      }247      case "PURGE_EXPIRED_TRASH": {248        const { retentionMs } = msg.payload as { retentionMs: number };249        const purged = await vault.purgeExpiredTrash(retentionMs);250        return { ok: true, data: purged };251      }252      case "AUTOFILL_QUERY": {253        if (!vault.isUnlocked()) {254          return { ok: false, error: "VAULT_LOCKED" };255        }256        const { domain, includeAll, kind } = msg.payload as {257          domain: string;258          includeAll?: boolean;259          kind?: "login" | "card";260        };261        // kind="card": return saved cards as compact summaries for the262        // inline card silver platter. Cards are not domain-scoped — every263        // saved card is a candidate on every checkout page — so domain is264        // ignored when kind === "card".265        if (kind === "card") {266          const cards = vault.getEntries().filter((e) => e.type === "card");267          return {268            ok: true,269            data: cards.map((e) => ({270              id: e.id,271              title: e.cardNickname || e.title,272              cardholderName: e.cardholderName,273              last4: e.last4,274              expMonth: e.expMonth,275              expYear: e.expYear,276              network: e.network,277            })),278          };279        }280        // The inline selector fills username+password into a form. Passkey-281        // only entries have no password to fill; sign-in for those goes282        // through the WebAuthn path instead. Filter them out everywhere so283        // the user doesn't see four "GitHub" rows that mostly do nothing.284        // Notes and cards never belonged here either.285        const matches = (286          includeAll287            ? vault288                .getEntries()289                .filter((entry) => entry.type !== "note" && entry.type !== "card")290            : vault.queryDomain(domain)291        ).filter((entry) => !isPasskeyOnly(entry));292        return {293          ok: true,294          data: matches.map((e) =>295            includeAll296              ? {297                  id: e.id,298                  title: e.title,299                  hasPasskey: e.passkey !== undefined,300                }301              : {302                  id: e.id,303                  title: e.title,304                  username: e.username,305                  url: e.url,306                  hasTotp: Boolean(e.totp),307                  hasPasskey: e.passkey !== undefined,308                }309          ),310        };311      }312      case "GET_ENTRY_FOR_FILL": {313        if (!vault.isUnlocked()) return { ok: false, error: "vault locked" };314        const { id } = msg.payload as { id: string };315        const entry = vault.getEntryById(id);316        if (!entry) return { ok: false, error: "entry not found" };317        // Passkey-only entries (passkey credential, no password) cannot be318        // filled into a form — sign-in goes through the WebAuthn path. A319        // login that ALSO has a passkey is still fillable for its password.320        if (isPasskeyOnly(entry)) return { ok: false, error: "passkey not fillable" };321        // Strip the passkey credential from the response — content scripts322        // never need the private key, and there's no reason to expose the323        // public credential metadata over the boundary either.324        const { passkey: _strippedPasskey, ...safeEntry } = entry;325        return { ok: true, data: safeEntry };326      }327      case "COPY": {328        const { text, label, alreadyWritten } = msg.payload as {329          text: string;330          label: string;331          alreadyWritten?: boolean;332        };333        await copyToClipboard(text, label, Boolean(alreadyWritten));334        return { ok: true };335      }336      case "CHECK_BREACH": {337        const { password } = msg.payload as { password: string };338        const count = await vault.checkBreach(password);339        return { ok: true, data: count };340      }341      case "CHECK_ALL_BREACHES": {342        const allEntries = vault.getEntries();343        const results: Record<string, number> = {};344        for (const entry of allEntries) {345          if (entry.type === "note") continue;346          if (!entry.password) continue;347          results[entry.id] = await vault.checkBreach(entry.password);348          // Small delay — be a good citizen to the HIBP API349          await new Promise((r) => setTimeout(r, 200));350        }351        // Persist any non-zero counts back to entries352        for (const [id, count] of Object.entries(results)) {353          const entry = vault.getEntryById(id);354          if (entry && (entry.breach ?? 0) !== count) {355            await vault.updateEntry(id, { breach: count > 0 ? count : undefined });356          }357        }358        return { ok: true, data: results };359      }360      case "GET_SETTINGS":361        return { ok: true, data: await vault.ensureSettingsLoaded() };362      case "UPDATE_SETTINGS": {363        const patch = msg.payload as Record<string, unknown>;364        await vault.updateSettings(patch as any);365        if (typeof patch.autoLockMinutes === "number") {366          await setupAutoLock();367          if (vault.isUnlocked()) touchAutoLock();368        }369        return { ok: true };370      }371      case "GET_PENDING_PASSKEY":372        return { ok: true, data: await getPendingPasskeyRequest() };373      case "APPROVE_PASSKEY": {374        const { requestId } = msg.payload as { requestId: number };375        await resolvePendingPasskeyRequest(requestId, true);376        return { ok: true };377      }378      case "DENY_PASSKEY": {379        const { requestId } = msg.payload as { requestId: number };380        await resolvePendingPasskeyRequest(requestId, false);381        return { ok: true };382      }383      case "GET_PASSKEYS":384        return {385          ok: true,386          data: vault.getEntries().filter((entry) => entry.passkey !== undefined),387        };388      case "DELETE_PASSKEY": {389        const { id } = msg.payload as { id: string };390        await vault.deleteEntry(id);391        return { ok: true };392      }393      case "GET_PASSKEY_PROVIDER_STATE":394        return { ok: true, data: await getPasskeyProviderState() };395      case "SET_PASSKEY_PROVIDER_ENABLED": {396        const { enabled } = msg.payload as { enabled: boolean };397        // Disabling is always free; gating fires only when a free user is398        // trying to turn passkey interception on.399        if (enabled) {400          const gate = await requirePro("passkeys");401          if (!gate.allowed) return { ok: false, error: "pro_required" };402        }403        return { ok: true, data: await setPasskeyProviderEnabled(enabled) };404      }405      case "FIRE_CANARY_PING": {406        const { webhookUrl, entryTitle, trigger } = msg.payload as {407          webhookUrl: string;408          entryTitle: string;409          trigger: "password_copied" | "username_copied" | "autofilled" | "submitted" | "test";410        };411        if (!isAllowedCanaryWebhookUrl(webhookUrl)) {412          return { ok: false, error: "invalid webhook url" };413        }414        const body = JSON.stringify({415          event: trigger === "test" ? "peach_canary_test" : "peach_canary_accessed",416          entry: entryTitle,417          trigger,418          timestamp: new Date().toISOString(),419          source: "peach-extension",420        });421        if (trigger === "test") {422          // Permitted outbound fetch: user-configured canary alert endpoint423          // (validated by isAllowedCanaryWebhookUrl above). This is the424          // only non-HIBP outbound call in the extension — see425          // Projects.md §3.7. Test pings are awaited so the UI can show426          // success/failure.427          try {428            const res = await fetch(webhookUrl, {429              method: "POST",430              headers: { "Content-Type": "application/json" },431              body,432            });433            return { ok: res.ok, error: res.ok ? undefined : `HTTP ${res.status}` };434          } catch (err) {435            return { ok: false, error: err instanceof Error ? err.message : "network error" };436          }437        }438        // Non-test triggers are fire-and-forget439        fetch(webhookUrl, {440          method: "POST",441          headers: { "Content-Type": "application/json" },442          body,443        }).catch(() => {});444        return { ok: true };445      }446      case "ACTIVATE_LICENSE": {447        const { key } = msg.payload as { key: string };448        const licenseInfo = await activateLicense(key);449        return { ok: true, data: licenseInfo };450      }451      case "GET_LICENSE": {452        const licenseInfo = await getLicenseInfo();453        return { ok: true, data: licenseInfo };454      }455      case "GET_LICENSE_KEY": {456        const key = await getLicenseKey();457        return { ok: true, data: key };458      }459      case "DEACTIVATE_LICENSE": {460        await deactivateLicense();461        return { ok: true };462      }463      case "SHOULD_PLAY_CELEBRATION": {464        const should = await shouldPlayCelebration();465        return { ok: true, data: should };466      }467      case "MARK_CELEBRATION_PLAYED": {468        await markCelebrationPlayed();469        return { ok: true };470      }471      case "OPEN_PRO_GATE": {472        // Content script requests: open popup and navigate to License section.473        const { feature } = (msg.payload ?? {}) as { feature?: string };474        if (chrome.storage.session) {475          await chrome.storage.session.set({ pendingProGate: { feature: feature ?? "passkeys" } });476        }477        try { await chrome.action.openPopup(); } catch { /* badge fallback */ }478        return { ok: true };479      }480      case "GET_IDENTITIES": {481        if (!vault.isUnlocked()) return { ok: false, error: "vault locked" };482        return { ok: true, data: vault.getIdentities() };483      }484      case "GET_ADVANCED_HEALTH_REPORT": {485        const gate = await requirePro("advanced_health");486        if (!gate.allowed) return { ok: false, error: "pro_required" };487        if (!vault.isUnlocked()) return { ok: false, error: "vault locked" };488        const report = await buildAdvancedHealthReport(vault.getEntries());489        return { ok: true, data: report };490      }491      case "INITIATE_PASSWORD_CHANGE": {492        const gate = await requirePro("smart_password_change");493        if (!gate.allowed) return { ok: false, error: "pro_required" };494        if (!vault.isUnlocked()) return { ok: false, error: "vault locked" };495        const { id } = msg.payload as { id: string };496        const entry = vault.getEntryById(id);497        if (!entry) return { ok: false, error: "entry not found" };498        const url = resolveResetUrl(entry);499        if (!url) return { ok: false, error: "no reset url" };500        try {501          await chrome.tabs.create({ url });502          return { ok: true, data: { url } };503        } catch (err) {504          return {505            ok: false,506            error: err instanceof Error ? err.message : "failed to open tab",507          };508        }509      }510      case "IS_DURESS_ENABLED": {511        const enabled = await vault.isDuressEnabled();512        return { ok: true, data: enabled };513      }514      case "SETUP_DURESS": {515        const { duressPassword } = msg.payload as { duressPassword: string };516        await vault.setupDuress(duressPassword);517        return { ok: true };518      }519      case "DISABLE_DURESS": {520        await vault.disableDuress();521        return { ok: true };522      }523      case "VERIFY_MAIN_PASSWORD": {524        const { password } = msg.payload as { password: string };525        const ok = await vault.verifyMainPassword(password);526        return { ok: true, data: ok };527      }528      case "CHANGE_PASSWORD": {529        const { currentPassword, newPassword } = msg.payload as {530          currentPassword: string;531          newPassword: string;532        };533        const changed = await vault.changePassword(currentPassword, newPassword);534        return changed535          ? { ok: true }536          : { ok: false, error: "incorrect current password" };537      }538      case "GET_SITE_PASSWORD_POLICY": {539        const [tab] = await chrome.tabs.query({ active: true, currentWindow: true });540        if (!tab?.id) return { ok: true, data: null };541        try {542          const response = await chrome.tabs.sendMessage(tab.id, {543            type: "GET_SITE_PASSWORD_POLICY",544          });545          return (response as MessageResponse) ?? { ok: true, data: null };546        } catch {547          return { ok: true, data: null };548        }549      }550      case "GET_SYNC_STATE": {551        const { getPairedDevices, getTrustedNetworks } = await import('./sync-storage');552        const { isOnTailscale } = await import('./sync-network');553        const { isProUser } = await import('./license');554        const pairedDevices = await getPairedDevices();555        const trustedNetworks = await getTrustedNetworks();556        const tailscale = await isOnTailscale();557        const pro = await isProUser();558        559        let status: SyncStatus = "offline";560        if (tailscale || trustedNetworks.some((n: { isTailscale?: boolean }) => !n.isTailscale)) {561          if (pairedDevices.length === 0) {562            status = "no_peers";563          } else {564            status = "synced";565          }566        } else {567          status = "not_trusted";568        }569        570        return { ok: true, data: { pairedDevices, trustedNetworks, status, isPro: pro } };571      }572      case "TRIGGER_SYNC": {573        const gate = await requirePro("sync");574        if (!gate.allowed) return { ok: false, error: "pro_required" };575        return { ok: true };576      }577      case "START_PAIRING": {578        const gate = await requirePro("sync");579        if (!gate.allowed) return { ok: false, error: "pro_required" };580        return { ok: true };581      }582      case "CANCEL_PAIRING": {583        return { ok: true };584      }585      case "ACCEPT_PAIRING": {586        const gate = await requirePro("sync");587        if (!gate.allowed) return { ok: false, error: "pro_required" };588        return { ok: true };589      }590      case "REMOVE_PAIRED_DEVICE": {591        const { deviceId } = msg.payload as { deviceId: string };592        const { removePairedDevice } = await import('./sync-storage');593        await removePairedDevice(deviceId);594        return { ok: true };595      }596      case "REMOVE_TRUSTED_NETWORK": {597        const { ssid, bssid, isTailscale } = msg.payload as any;598        const { removeTrustedNetwork, getTrustedNetworks } = await import('./sync-storage');599        const networks = await getTrustedNetworks();600        const network = networks.find((n: { ssid?: string; bssid?: string; isTailscale?: boolean }) => 601          (isTailscale ? n.isTailscale : n.ssid === ssid) && 602          (!bssid || n.bssid === bssid)603        );604        if (network) {605          await removeTrustedNetwork(network.addedAt);606        }607        return { ok: true };608      }609      case "MARK_NETWORK_TRUSTED": {610        const { addTrustedNetwork } = await import('./sync-storage');611        const { getCurrentNetwork } = await import('./sync-network');612        const network = await getCurrentNetwork();613        await addTrustedNetwork({614          ssid: network.ssid,615          bssid: network.bssid,616          isTailscale: network.isTailscale,617          addedAt: Date.now(),618        });619        return { ok: true };620      }621      case "RESET_SYNC_IDENTITY": {622        const gate = await requirePro("sync");623        if (!gate.allowed) return { ok: false, error: "pro_required" };624        const { getPairedDevices, removePairedDevice } = await import('./sync-storage');625        const devices = await getPairedDevices();626        for (const device of devices) {627          await removePairedDevice(device.deviceId);628        }629        // Native rotation is best-effort: when the native messaging host is630        // not yet installed (Phase 9), connectNative throws and we still631        // honour the local clear so the UI reflects the reset. The native632        // identity rotates the next time the host starts cleanly anyway.633        let nativePublicKey: string | null = null;634        try {635          const { rotateNativeIdentity, disconnectSyncHost } = await import('./sync');636          nativePublicKey = await rotateNativeIdentity();637          disconnectSyncHost();638        } catch {639          nativePublicKey = null;640        }641        return { ok: true, data: { removedDevices: devices.length, nativePublicKey } };642      }643      case "RECORD_MANUAL_SUMMON": {644        const { domain } = msg.payload as { domain: string };645        const settings = vault.getSettings();646        const existing = settings.manualSummonDomains?.[domain];647        const now = Date.now();648        await vault.updateSettings({649          manualSummonDomains: {650            ...settings.manualSummonDomains,651            [domain]: {652              firstSummonedAt: existing?.firstSummonedAt ?? now,653              summonCount: (existing?.summonCount ?? 0) + 1,654              lastSummonedAt: now,655            },656          },657        });658        return { ok: true };659      }660      case "DECLINE_CARD_SAVE": {661        const { last4, expMonth, expYear } = msg.payload as { last4: string; expMonth: string; expYear: string };662        await vault.declineCardSaveOffer(last4, expMonth, expYear);663        return { ok: true };664      }665      case "IS_CARD_DECLINED": {666        const { last4, expMonth, expYear } = msg.payload as { last4: string; expMonth: string; expYear: string };667        const declined = await vault.isCardDeclined(last4, expMonth, expYear);668        return { ok: true, data: declined };669      }670      case "INITIATE_FIREFOX_PASSKEY_CREATE": {671        const { rpId, rpName, userName, userDisplayName } = (msg.payload ?? {}) as {672          rpId?: string;673          rpName?: string;674          userName?: string;675          userDisplayName?: string;676        };677        if (!rpId || !userName) return { ok: false, error: "rpId and userName required" };678        return await initiateFirefoxPasskeyCreate({679          rpId,680          rpName: rpName ?? rpId,681          userName,682          userDisplayName,683        });684      }685686      case "COMPLETE_FIREFOX_PASSKEY_CREATE": {687        const payload = msg.payload as Parameters<typeof completeFirefoxPasskeyCreate>[0] | undefined;688        if (!payload) return { ok: false, error: "missing payload" };689        return await completeFirefoxPasskeyCreate(payload);690      }691692      case "PASSKEY_OFFER_DECLINE": {693        const { domain } = (msg.payload ?? {}) as { domain?: string };694        if (!domain) return { ok: false, error: "domain required" };695        await recordPasskeyOfferDecline(domain);696        return { ok: true };697      }698699      case "GET_PASSKEY_OFFER_DECLINED": {700        const { domain } = (msg.payload ?? {}) as { domain?: string };701        if (!domain) return { ok: false, error: "domain required" };702        return { ok: true, data: await isPasskeyOfferDeclined(domain) };703      }704705      case "PASSKEY_HAS_CREDENTIALS": {706        const payload = msg.payload as {707          rpId?: string;708          allowCredentials?: Array<{ id: string; type?: string }>;709        } | undefined;710        if (!payload?.rpId) return { ok: false, error: "rpId required" };711        return await handlePasskeyHasCredentials({712          rpId: payload.rpId,713          allowCredentials: payload.allowCredentials ?? [],714        });715      }716717      case "PASSKEY_CREATE": {718        const payload = msg.payload as Parameters<typeof handleFirefoxPasskeyCreate>[0] | undefined;719        if (!payload?.rpId || !payload?.userName) {720          return { ok: false, error: "rpId and userName required" };721        }722        return await handleFirefoxPasskeyCreate(payload);723      }724725      case "PASSKEY_GET": {726        const payload = msg.payload as Parameters<typeof handleFirefoxPasskeyGet>[0] | undefined;727        if (!payload?.rpId) return { ok: false, error: "rpId required" };728        return await handleFirefoxPasskeyGet(payload);729      }730731      case "GET_PASSKEY_FOR_DOMAIN": {732        const { domain } = (msg.payload ?? {}) as { domain?: string };733        if (!domain) return { ok: false, error: "domain required" };734        if (!vault.isUnlocked()) return { ok: true, data: null };735        const match = vault736          .getEntries()737          .find((entry) => entry.passkey?.rpId === domain);738        if (!match || !match.passkey) return { ok: true, data: null };739        // Slim shape — only the fields State 11 needs. Never expose private740        // key material, even though this is locked behind isUnlocked.741        return {742          ok: true,743          data: {744            rpId: match.passkey.rpId,745            userName: match.passkey.userName,746            browser: match.passkey.browser,747          },748        };749      }750751      case "DESTROY_VAULT": {752        // Irreversible by design. Lock zeroes the derived key + in-memory entries;753        // storage.local.clear() wipes every Peach key (slots, settings, license,754        // onboarded flag, snapshots, sync state, declined cards, recall, etc.);755        // session.clear() wipes pending passkey requests + pro-notice queues.756        // Caller (Panic.tsx) handles UI navigation back to onboarding.757        vault.lock();758        await storageClear();759        if (!Capacitor.isNativePlatform() && chrome.storage.session) {760          await chrome.storage.session.clear();761        }762        return { ok: true };763      }764765      case "SUBMIT_FEEDBACK": {766        const { category, message, version, browser } = msg.payload as {767          category: string;768          message: string;769          version: string;770          browser: string;771        };772        if (!message.trim()) return { ok: false, error: "message is empty" };773        if (!FEEDBACK_ENDPOINT) return { ok: true };774        if (!isAllowedCanaryWebhookUrl(FEEDBACK_ENDPOINT)) {775          return { ok: false, error: "invalid feedback endpoint" };776        }777        try {778          const res = await fetch(FEEDBACK_ENDPOINT, {779            method: "POST",780            headers: { "Content-Type": "application/json" },781            body: JSON.stringify({ category, message, version, browser, source: "peach-extension" }),782          });783          return { ok: res.ok, error: res.ok ? undefined : `HTTP ${res.status}` };784        } catch (err) {785          return { ok: false, error: err instanceof Error ? err.message : "network error" };786        }787      }788      default:789        return { ok: false, error: "unknown message type" };790    }791  } catch (err) {792    return {793      ok: false,794      error: err instanceof Error ? err.message : "operation failed",795    };796  }797}798799/** Notify all content scripts that the vault just became available. */800function broadcastToContentScripts(message: { type: string }): void {801  if (Capacitor.isNativePlatform() || !chrome.tabs?.query) return;802  chrome.tabs.query({}, (tabs) => {803    for (const tab of tabs) {804      if (tab.id !== undefined) {805        chrome.tabs.sendMessage(tab.id, message).catch(() => {806          // Tab may not have a content script — silently ignore807        });808      }809    }810  });811}812813function shouldRefreshAutoLock(type: MessageType): boolean {814  return (815    type !== "HAS_VAULT" &&816    type !== "IS_UNLOCKED" &&817    type !== "GET_VAULT_STATUS" &&818    type !== "LOCK" &&819    type !== "UPDATE_SETTINGS" &&820    type !== "GET_PENDING_PASSKEY" &&821    type !== "GET_PASSKEY_PROVIDER_STATE" &&822    type !== "DECLINE_CARD_SAVE" &&823    type !== "IS_CARD_DECLINED" &&824    type !== "SUBMIT_FEEDBACK"825  );826}827828function isAllowedCanaryWebhookUrl(value: string): boolean {829  try {830    const url = new URL(value);831    if (url.protocol !== "https:") return false;832833    const hostname = url.hostname.toLowerCase();834    if (835      hostname === "localhost" ||836      hostname.endsWith(".localhost") ||837      isPrivateIpv4(hostname) ||838      isPrivateIpv6(hostname)839    ) {840      return false;841    }842843    return true;844  } catch {845    return false;846  }847}848849function isPrivateIpv4(hostname: string): boolean {850  if (PRIVATE_IPV4_RANGES.some((range) => hostname.startsWith(range.prefix))) {851    return true;852  }853854  const octets = hostname.split(".").map((part) => Number(part));855  if (octets.length !== 4 || octets.some((octet) => !Number.isInteger(octet) || octet < 0 || octet > 255)) {856    return false;857  }858859  return octets[0] === 172 && octets[1] >= 16 && octets[1] <= 31;860}861862function isPrivateIpv6(hostname: string): boolean {863  const normalized = hostname.replace(/^\[|\]$/g, "").toLowerCase();864  return (865    normalized === "::1" ||866    normalized.startsWith("fc") ||867    normalized.startsWith("fd") ||868    normalized.startsWith("fe80:")869  );870}