index.ts

1import {2  detectCardForm,3  detectLoginFields,4  getDeepActiveInput,5  getPageDomain,6  isLoginForm,7  isSignupForm,8  isVisible,9} from "./detect";10import {11  CardSelectorEntry,12  injectFieldIcon,13  observeAnchorPosition,14  SelectorEntry,15  showAutofillSelector,16  showCardSelector,17  showPasskeyAvailable,18  showPasskeyProGate,19  showPasskeyRegistrationOffer,20  showRememberSiteToast,21} from "./inject";22import { detectBrowser } from "../shared/browser";23import { FIREFOX_USE_CONTENT_SCRIPT_PROXY } from "../shared/passkey-flags";24import { fillCardForm, fillFields, setNativeValue } from "./fill";25import { setupSaveDetection } from "./save";26import { contentMLDetector } from "./content-ml-detector";27import { detectPasswordPolicy } from "./policy";28import type { FieldPrediction } from "../shared/ml";29import { generateTOTP } from "../crypto/totp";30import type { SavedIdentity, VaultEntry } from "../shared/types";3132// WeakMap (not WeakSet) — we keep the per-input cleanup callback as the value33// so we can tear down listeners if we ever need to re-process the same field.34// When the input is GC'd (SPA nav, React re-render), the map entry goes with35// it and we can re-inject without leaking the old handler.36const processedInputs = new WeakMap<HTMLInputElement, () => void>();37const AUTOFILL_FIELD_TYPES = new Set(["password", "username", "email"]);3839let currentDismiss: (() => void) | null = null;40// Field whose selector is currently open — used to avoid dismiss+reopen flicker41let currentAnchorField: HTMLInputElement | null = null;42// Prevents two concurrent handleFieldInteraction calls for the same field43const pendingInteractions = new WeakSet<HTMLInputElement>();44// Tracks the last field the user explicitly dismissed (Escape / click-outside / Tab).45// Suppresses spurious reopens until focus moves to a different field. Layer 146// of the dismissal model — see Projects.md §4.12.47let lastDismissedField: HTMLInputElement | null = null;4849// ── Dismissal lock (Layer 2) ────────────────────────────────────────50// After any user-initiated dismiss, briefly block ALL reopens regardless of51// which field is focused. Catches the case where a page rapidly moves focus52// between fields after Escape — without this, focus moving to a SECOND field53// in <100ms would re-trigger the popup before the user finished dismissing.54const DISMISS_LOCK_MS = 800;55let dismissLock = false;56let dismissLockTimer: ReturnType<typeof setTimeout> | null = null;57// Set when the inline popup was summoned specifically for a passkey-unlock58// flow. The VAULT_UNLOCKED handler checks this to skip re-triggering autofill59// (the passkey toast handles the next step instead).60let passkeySummonActive = false;61// Set while the passkey approval toast is visible. Prevents handleFieldInteraction62// from opening the autofill selector alongside it. Cleared by a window message63// posted by inject.tsx when the toast closes (and by DISMISS_PASSKEY_TOAST).64let passkeyToastActive = false;65function startDismissLock(): void {66  dismissLock = true;67  if (dismissLockTimer) clearTimeout(dismissLockTimer);68  dismissLockTimer = setTimeout(() => { dismissLock = false; }, DISMISS_LOCK_MS);69}70function canOpen(): boolean { return !dismissLock; }7172// ── Fill-success lock ───────────────────────────────────────────────73// After Peach autofills a form, the popup must NOT reappear on the filled74// fields, on the submit button (some sites refocus it briefly), or on any75// field in that form — even when host-page DOM mutations or the form's own76// validation flow refocus an input. Implemented as a WeakSet of forms plus77// a page-level timestamp:78//   - filledForms: every form Peach has filled this page session. Survives79//     until the form leaves the DOM (WeakSet GC).80//   - pageFilledAt: timestamp of last fill. Used as a 3s belt-and-suspenders81//     window for fields that aren't inside a <form> element (some SPAs).82// SPA navigation resets pageFilledAt via the urlObserver below; filledForms83// self-empties as old form elements get GC'd.84const filledForms = new WeakSet<HTMLFormElement>();85let pageFilledAt: number | null = null;86const PAGE_FILL_GRACE_MS = 3000;8788function recordFillSuccess(...fields: (HTMLInputElement | null | undefined)[]): void {89  for (const f of fields) {90    if (!f) continue;91    const form = f.closest("form");92    if (form) filledForms.add(form);93  }94  pageFilledAt = Date.now();95}9697function wasAlreadyFilled(field: HTMLInputElement): boolean {98  const form = field.closest("form");99  if (form && filledForms.has(form)) return true;100  if (pageFilledAt !== null && Date.now() - pageFilledAt < PAGE_FILL_GRACE_MS) return true;101  return false;102}103104function clearFillStateForExplicitSummon(field: HTMLInputElement): void {105  const form = field.closest("form");106  if (form) filledForms.delete(form);107  pageFilledAt = null;108}109110// Some sites briefly focus the submit button when the user clicks it (visual111// feedback, blur/focus dance for validation animations). Catch those at the112// focusin layer so we don't re-trigger handleFieldInteraction for an event113// target that was never going to be a credential field anyway.114function isSubmitButton(el: EventTarget | null): boolean {115  if (!(el instanceof HTMLElement)) return false;116  if (el instanceof HTMLButtonElement && el.type !== "button") return true;117  if (el instanceof HTMLInputElement && el.type === "submit") return true;118  if (el.getAttribute("type") === "submit") return true;119  const text = (el.textContent?.trim() ?? el.getAttribute("value") ?? "").toLowerCase();120  if (!text || text.length > 24) return false;121  return /^(submit|sign[ -]?in|log[ -]?in|continue|next|go)$/i.test(text);122}123124function debounce<T extends (...args: unknown[]) => void>(125  fn: T,126  ms: number127): (...args: Parameters<T>) => void {128  let timer: ReturnType<typeof setTimeout>;129  return (...args: Parameters<T>) => {130    clearTimeout(timer);131    timer = setTimeout(() => fn(...args), ms);132  };133}134135function showToast(message: string): void {136  const toast = document.createElement("div");137  toast.style.cssText = `138    position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);139    background: #131109; color: #F0E8D8; padding: 8px 16px;140    border-radius: 8px; font-family: 'IBM Plex Mono', monospace;141    font-size: 11px; z-index: 2147483647; opacity: 0;142    transition: opacity 200ms ease;143    border: 1px solid rgba(240,232,216,0.07);144    pointer-events: none;145  `;146  toast.textContent = message;147  document.body.appendChild(toast);148  requestAnimationFrame(() => { toast.style.opacity = "1"; });149  setTimeout(() => {150    toast.style.opacity = "0";151    setTimeout(() => toast.remove(), 200);152  }, 2000);153}154155function showSearchPalette(): void {156  const host = document.createElement("div");157  host.style.cssText = "position:fixed;top:80px;left:50%;transform:translateX(-50%);z-index:2147483647;width:340px;";158  document.body.appendChild(host);159  const shadow = host.attachShadow({ mode: "closed" });160161  const style = document.createElement("style");162  style.textContent = `163    .p{background:#131109;border:1px solid rgba(240,232,216,.12);border-radius:12px;164      font-family:'IBM Plex Mono',monospace;font-size:12px;color:#F0E8D8;165      box-shadow:0 8px 24px rgba(0,0,0,.5);overflow:hidden}166    .h{padding:10px 12px 8px;border-bottom:1px solid rgba(240,232,216,.08);167      font-size:11px;color:rgba(240,232,216,.5);display:flex;justify-content:space-between;align-items:center}168    .x{background:none;border:none;color:rgba(240,232,216,.4);cursor:pointer;font-size:14px;padding:0;line-height:1}169    .s{padding:8px 12px}170    .s input{width:100%;box-sizing:border-box;background:rgba(240,232,216,.06);171      border:1px solid rgba(240,232,216,.12);border-radius:6px;color:#F0E8D8;172      padding:6px 8px;font-family:inherit;font-size:12px;outline:none}173    .l{max-height:220px;overflow-y:auto}174    .e{padding:8px 12px;cursor:pointer;display:flex;flex-direction:column;gap:2px}175    .e:hover{background:rgba(240,232,216,.06)}176    .et{font-size:12px}177    .eu{font-size:10px;color:rgba(240,232,216,.45)}178    .em{padding:12px;color:rgba(240,232,216,.4);text-align:center}179  `;180181  let allEntries: SelectorEntry[] = [];182  let query = "";183184  const panel = document.createElement("div");185  panel.className = "p";186187  const hdr = document.createElement("div");188  hdr.className = "h";189  const hdrText = document.createElement("span");190  hdrText.textContent = "No form detected — search your vault";191  const closeBtn = document.createElement("button");192  closeBtn.className = "x";193  closeBtn.textContent = "✕";194  hdr.appendChild(hdrText);195  hdr.appendChild(closeBtn);196197  const searchWrap = document.createElement("div");198  searchWrap.className = "s";199  const searchInput = document.createElement("input");200  searchInput.placeholder = "search...";201  searchWrap.appendChild(searchInput);202203  const list = document.createElement("div");204  list.className = "l";205206  panel.appendChild(hdr);207  panel.appendChild(searchWrap);208  panel.appendChild(list);209  shadow.appendChild(style);210  shadow.appendChild(panel);211212  function close() { host.remove(); }213214  closeBtn.onclick = close;215216  function onKeyDown(e: KeyboardEvent) {217    if (e.key === "Escape") { close(); document.removeEventListener("keydown", onKeyDown, true); }218  }219  document.addEventListener("keydown", onKeyDown, true);220221  function render() {222    const q = query.toLowerCase();223    const filtered = q224      ? allEntries.filter(e => e.title.toLowerCase().includes(q) || (e.username ?? "").toLowerCase().includes(q))225      : allEntries;226    list.innerHTML = "";227    if (filtered.length === 0) {228      const em = document.createElement("div");229      em.className = "em";230      em.textContent = query ? "no matches" : "vault is empty";231      list.appendChild(em);232      return;233    }234    for (const entry of filtered.slice(0, 20)) {235      const row = document.createElement("div");236      row.className = "e";237      const title = document.createElement("div");238      title.className = "et";239      title.textContent = entry.title;240      row.appendChild(title);241      if (entry.username) {242        const user = document.createElement("div");243        user.className = "eu";244        user.textContent = entry.username;245        row.appendChild(user);246      }247      row.onclick = async () => {248        const resp = await chrome.runtime.sendMessage({ type: "GET_ENTRY_FOR_FILL", payload: { id: entry.id } });249        const r = resp as { ok: boolean; data?: { password?: string } };250        if (r.ok && r.data?.password) {251          let alreadyWritten = false;252          try { await navigator.clipboard.writeText(r.data.password); alreadyWritten = true; } catch {}253          await chrome.runtime.sendMessage({254            type: "COPY",255            payload: { text: r.data.password, label: "Password", alreadyWritten },256          });257          showToast("Password copied");258        } else {259          showToast("Could not copy password");260        }261        close();262        document.removeEventListener("keydown", onKeyDown, true);263      };264      list.appendChild(row);265    }266  }267268  searchInput.oninput = () => { query = searchInput.value; render(); };269270  fetchAutofillEntries(getPageDomain(), true).then(result => {271    if (result.locked) { showToast("Vault is locked — open Peach to unlock"); close(); return; }272    allEntries = result.entries;273    render();274    searchInput.focus();275  });276}277278function setNativeValue(el: HTMLInputElement, value: string): void {279  const nativeSetter = Object.getOwnPropertyDescriptor(280    HTMLInputElement.prototype, "value"281  )!.set!;282  nativeSetter.call(el, value);283  el.dispatchEvent(new Event("input", { bubbles: true }));284  el.dispatchEvent(new Event("change", { bubbles: true }));285}286287function findTOTPField(): HTMLInputElement | null {288  const inputs = document.querySelectorAll<HTMLInputElement>("input");289  for (const input of inputs) {290    if (!isVisible(input)) continue;291    const autocomplete = input.autocomplete.toLowerCase();292    const nameId = (input.name + input.id).toLowerCase();293    const nameIdPlaceholder = nameId + input.placeholder.toLowerCase();294    if (295      autocomplete === "one-time-code" ||296      /\botp\b|\btotp\b|\b2fa\b|\bmfa\b|\bcode\b/.test(nameIdPlaceholder)297    ) {298      return input;299    }300    const labelEl = input.closest("label");301    if (labelEl && /\botp\b|\btotp\b|\b2fa\b|\bmfa\b|\bcode\b/.test(labelEl.textContent?.toLowerCase() ?? "")) {302      return input;303    }304  }305  return null;306}307308async function autofillTOTP(totpField: HTMLInputElement, totpSecret: string): Promise<void> {309  await new Promise((r) => setTimeout(r, 400));310  if (totpField.value === "" || totpField.value.trim() === "") {311    const { code } = generateTOTP(totpSecret);312    setNativeValue(totpField, code);313    showToast("TOTP autofilled");314  }315}316317318async function handleAutofill(319  field: HTMLInputElement,320  usernameEl: HTMLInputElement | null,321  passwordEl: HTMLInputElement,322  entry: VaultEntry323): Promise<void> {324  if (!entry.username && !entry.password) return;325  const pageDomain = getPageDomain();326  const form = passwordEl.closest("form") as HTMLFormElement | null;327  fillFields(usernameEl, passwordEl, entry.username ?? "", entry.password ?? "", form, pageDomain);328329  if (entry.canary) {330    chrome.runtime.sendMessage({331      type: "FIRE_CANARY_PING",332      payload: {333        webhookUrl: entry.canary.webhookUrl,334        entryTitle: entry.title,335        trigger: "autofilled",336      },337    }).catch(() => {});338    chrome.runtime.sendMessage({339      type: "UPDATE_ENTRY",340      payload: {341        id: entry.id,342        patch: {343          canary: {344            ...entry.canary,345            lastPinged: Date.now(),346            pingCount: (entry.canary.pingCount ?? 0) + 1,347          },348        },349      },350    }).catch(() => {});351  }352353  if (entry.totp) {354    const { code } = generateTOTP(entry.totp);355    let alreadyWritten = false;356    try { await navigator.clipboard.writeText(code); alreadyWritten = true; } catch {}357    const response = await chrome.runtime.sendMessage({358      type: "COPY",359      payload: { text: code, label: "TOTP", alreadyWritten },360    });361    if (alreadyWritten || (response as { ok?: boolean }).ok) {362      showToast("TOTP copied · " + code);363    }364    const totpField = findTOTPField();365    if (totpField) {366      autofillTOTP(totpField, entry.totp);367    }368  }369}370371async function fetchAutofillEntries(372  domain: string,373  includeAll = false374): Promise<{ entries: SelectorEntry[]; locked: boolean }> {375  const response = await chrome.runtime.sendMessage({376    type: "AUTOFILL_QUERY",377    payload: { domain, includeAll },378  });379  const res = response as { ok: boolean; data?: SelectorEntry[]; error?: string };380  if (!res.ok && res.error === "VAULT_LOCKED") {381    return { entries: [], locked: true };382  }383  return { entries: res.data ?? [], locked: false };384}385386387function resolveAutofillFieldType(388  el: HTMLInputElement,389  predictedType?: FieldPrediction["type"] | null390): "password" | "username" | "email" | null {391  if (392    predictedType === "password" ||393    predictedType === "username" ||394    predictedType === "email"395  ) {396    return predictedType;397  }398399  const detected = detectLoginFields().find((field) => field.el === el)?.type;400  if (detected && AUTOFILL_FIELD_TYPES.has(detected)) {401    return detected;402  }403404  const htmlType = el.type.toLowerCase();405  if (htmlType === "password") return "password";406  if (htmlType === "email") return "email";407  return null;408}409410async function openAutofillSelector(411  anchorField: HTMLInputElement,412  usernameEl: HTMLInputElement | null,413  passwordEl: HTMLInputElement,414  domainEntries: SelectorEntry[],415  searchableEntries: SelectorEntry[],416  domain: string417): Promise<void> {418  // No saved entries for this site → signup/new-account mode.419  // Fetch vault identities for the identity-first surface and locate420  // the confirm-password field so "Copy & fill" can populate it too.421  const isSignup = domainEntries.length === 0;422  let savedIdentities: SavedIdentity[] | undefined;423  let confirmEl: HTMLInputElement | null = null;424  if (isSignup) {425    try {426      const idResp = await chrome.runtime.sendMessage({ type: "GET_IDENTITIES" }).catch(() => null) as427        { ok: boolean; data?: SavedIdentity[] } | null;428      if (idResp?.ok && Array.isArray(idResp.data)) savedIdentities = idResp.data;429    } catch { /* silent fallback */ }430431    const form = passwordEl.closest("form") ?? document.body;432    const allPwInputs = Array.from(form.querySelectorAll<HTMLInputElement>("input[type='password']"));433    confirmEl = allPwInputs.find(434      (el) => el !== passwordEl && /confirm|repeat|verify/i.test(el.name + el.id + el.placeholder)435    ) ?? (allPwInputs.length >= 2 ? allPwInputs.find((el) => el !== passwordEl) ?? null : null);436  }437438  currentDismiss?.();439  currentAnchorField = anchorField;440  currentDismiss = showAutofillSelector(441    anchorField,442    domainEntries,443    async (id: string) => {444      currentDismiss = null;445      currentAnchorField = null;446      const entryResponse = await chrome.runtime.sendMessage({447        type: "GET_ENTRY_FOR_FILL",448        payload: { id },449      });450      const entry = (entryResponse as { ok: boolean; data?: VaultEntry }).data;451      if (entry) {452        await handleAutofill(anchorField, usernameEl, passwordEl, entry);453        recordFillSuccess(anchorField, usernameEl, passwordEl);454        // Offer to remember the current site for this entry only if none of455        // its known domains (primary + additional) match — otherwise the456        // user already mapped it and the prompt would be noise.457        const pageDomain = location.hostname.replace(/^www\./, "");458        const entryDomains = new Set<string>();459        for (const u of [entry.url, ...(entry.additionalUrls ?? [])]) {460          try {461            if (u) entryDomains.add(new URL(u).hostname.replace(/^www\./, ""));462          } catch { /* ignore unparseable */ }463        }464        if (pageDomain && entryDomains.size > 0 && !entryDomains.has(pageDomain)) {465          showRememberSiteToast(pageDomain, entry.id);466        }467      }468    },469    {470      domain,471      searchableEntries,472      isSignup,473      savedIdentities,474      onFillFields: (username, password) => {475        const form = passwordEl.closest("form") as HTMLFormElement | null;476        fillFields(usernameEl, passwordEl, username, password, form, getPageDomain());477        if (password && confirmEl) setNativeValue(confirmEl, password);478        recordFillSuccess(anchorField, usernameEl, passwordEl);479      },480      onDismiss: () => { lastDismissedField = anchorField; startDismissLock(); },481    }482  );483}484485486async function handleFieldInteraction(anchorField?: HTMLInputElement | null): Promise<void> {487  const field = anchorField ?? getDeepActiveInput();488  if (!field) return;489  if (!isVisible(field)) return;490491  // Passkey toast is visible — don't open the credential selector alongside it.492  if (passkeyToastActive) return;493494  // Layer 2: post-dismiss global lock. Catches rapid focus moves between495  // fields immediately after Escape/click-outside.496  if (!canOpen()) return;497498  // If a selector is already open for this exact field, don't flicker it.499  if (currentDismiss && currentAnchorField === field) return;500501  // If focus moved to a different field, the previous per-field dismiss lock502  // no longer applies.503  if (field !== lastDismissedField) lastDismissedField = null;504  // Layer 1: the user explicitly dismissed this field's selector — don't505  // reopen it until focus has genuinely moved away and come back.506  if (field === lastDismissedField) return;507508  // Fill-success lock: Peach already filled this form (or fired a fill509  // anywhere on the page within the grace window). Sites often refocus an510  // input on submit click, on validation, or on a transition to a success511  // state — none of those should re-open the popup.512  if (wasAlreadyFilled(field)) return;513514  // Prevent two concurrent calls for the same field (e.g. focusin + icon click515  // firing simultaneously — the second call would dismiss the first's selector).516  if (pendingInteractions.has(field)) return;517  pendingInteractions.add(field);518519  try {520    const fieldType = field.type.toLowerCase();521522    const mlPromise = contentMLDetector.predictBatch([field]).then((preds) => {523      return preds[0] ?? null;524    });525526    const mlPrediction = await new Promise<FieldPrediction | null>((resolve) => {527      const timeout = setTimeout(() => resolve(null), 150);528      mlPromise.then((pred) => {529        clearTimeout(timeout);530        resolve(pred);531      });532    });533534    if (fieldType !== "password" && mlPrediction && mlPrediction.type !== "username" && mlPrediction.type !== "email") {535      return;536    }537538    const autofillFieldType = resolveAutofillFieldType(field, mlPrediction?.type);539    if (autofillFieldType) {540      reattachListeners(field, autofillFieldType);541    }542543    let fields = detectLoginFields();544    const loginForm = isLoginForm(fields);545    const signupForm = isSignupForm(fields);546    if (!loginForm && !signupForm) {547      return;548    }549550    const domain = getPageDomain();551    const firstResult = await fetchAutofillEntries(domain);552553    // Vault is locked — show an inline unlock prompt.554    // Re-triggering after unlock is handled by the VAULT_UNLOCKED message so555    // there is no double-trigger race between onUnlocked and the broadcast.556    if (firstResult.locked) {557      currentDismiss?.();558      currentAnchorField = field;559      currentDismiss = showAutofillSelector(560        field,561        [],562        () => {},563        { domain, locked: true, onDismiss: () => { lastDismissedField = field; startDismissLock(); } }564      );565      return;566    }567568    const entries = firstResult.entries;569    const allEntries = entries.length === 0570      ? (await fetchAutofillEntries(domain, true)).entries571      : entries;572573    let usernameEl: HTMLInputElement | null = null;574    const userField = fields.find((f) => f.type === "username" || f.type === "email");575    if (userField) usernameEl = userField.el;576    const pwField = fields.find((f) => f.type === "password");577    if (!pwField) return;578    const passwordEl = pwField.el;579580    await openAutofillSelector(field, usernameEl, passwordEl, entries, allEntries, domain);581  } finally {582    pendingInteractions.delete(field);583  }584}585586async function onFocusIn(e: Event): Promise<void> {587  // Submit-button focus: catch the brief refocus some sites do when the588  // user clicks the login/submit button. Without this guard, that focus589  // event reaches handleFieldInteraction → getDeepActiveInput, and on590  // pages where the button is also a labelled <input> we briefly attempt591  // to open the popup over the very button the user just clicked.592  if (isSubmitButton(e.target)) return;593  await handleFieldInteraction();594}595596function reattachListeners(597  el: HTMLInputElement,598  detectedType?: "password" | "username" | "email",599  contextFields?: ReturnType<typeof detectLoginFields>600): void {601  if (processedInputs.has(el)) return;602  if (!resolveAutofillFieldType(el, detectedType)) return;603  // Only inject icon when a real login/signup form is present on the page604  const fields = contextFields ?? detectLoginFields();605  if (!isLoginForm(fields) && !isSignupForm(fields)) return;606607  const cleanup = injectFieldIcon(el, () => {608    currentDismiss?.();609    currentDismiss = null;610    lastDismissedField = null; // icon click is an explicit user open — clear per-field lock611    dismissLock = false; // ...and the global lock612    if (dismissLockTimer) { clearTimeout(dismissLockTimer); dismissLockTimer = null; }613    clearFillStateForExplicitSummon(el);614    el.focus({ preventScroll: true });615    void handleFieldInteraction(el);616  });617  processedInputs.set(el, cleanup);618}619620const debouncedReattach = debounce(() => {621  const allFields = detectLoginFields();622  // Don't inject anything if there's no real login/signup form on this page623  if (!isLoginForm(allFields) && !isSignupForm(allFields)) return;624  const newFields = allFields.filter(625    (f) => AUTOFILL_FIELD_TYPES.has(f.type) && !processedInputs.has(f.el)626  );627  for (const f of newFields) {628    reattachListeners(f.el, f.type, allFields);629  }630  // 200ms debounce — below this, Peach and the host page's reactive layer631  // fight over the same layout properties every frame on React/Vue/Angular632  // login forms (v1.4.14 regression, Projects.md §4.7). Do not lower.633}, 200);634635function setupMutationObserver(): void {636  const observer = new MutationObserver(debouncedReattach);637  observer.observe(document.body, {638    childList: true,639    subtree: true,640    attributes: true,641    attributeFilter: ["type", "autocomplete", "name", "id", "placeholder", "hidden"],642  });643}644645function initialScan(aggressionLevel = 0, isFinalPass = false) {646  const allFields = detectLoginFields();647  const hasKnownForm = isLoginForm(allFields) || isSignupForm(allFields);648649  if (aggressionLevel === 0 && !hasKnownForm) return;650651  const newFields = allFields.filter(652    (f) => AUTOFILL_FIELD_TYPES.has(f.type) && !processedInputs.has(f.el)653  );654655  for (const f of newFields) {656    reattachListeners(f.el, f.type, allFields);657  }658659  // Level 2, final pass: inject icon on any visible password field even if660  // the form-context gate in reattachListeners would normally skip it.661  if (aggressionLevel >= 2 && isFinalPass && newFields.length === 0) {662    const pwInputs = document.querySelectorAll<HTMLInputElement>('input[type="password"]');663    for (const el of pwInputs) {664      if (isVisible(el) && !processedInputs.has(el)) {665        const cleanup = injectFieldIcon(el, () => {666          currentDismiss?.();667          currentDismiss = null;668          lastDismissedField = null;669          dismissLock = false;670          if (dismissLockTimer) { clearTimeout(dismissLockTimer); dismissLockTimer = null; }671          clearFillStateForExplicitSummon(el);672          el.focus({ preventScroll: true });673          void handleFieldInteraction(el);674        });675        processedInputs.set(el, cleanup);676      }677    }678  }679}680681document.addEventListener("focusin", onFocusIn);682683setupMutationObserver();684setupSaveDetection();685setupCardAutofill();686687// SPA navigation reset: the content script does not reload across in-app688// route changes (history.pushState, hash navigation, framework routers).689// When the URL changes we clear the page-level fill timestamp so the next690// page works normally; filledForms (a WeakSet) self-empties as old form691// elements leave the DOM. subtree:false because route swaps reliably692// mutate document.body's direct children — subtree:true would fire on693// every internal DOM update and cost us a re-check per mutation.694let lastObservedUrl = location.href;695new MutationObserver(() => {696  if (location.href !== lastObservedUrl) {697    lastObservedUrl = location.href;698    pageFilledAt = null;699  }700}).observe(document.body, { childList: true, subtree: false });701702// Async init: check recall map before running the initial scans so we can703// apply the right aggression level for domains the user has needed before.704(async () => {705  let aggressionLevel = 0;706  try {707    const resp = await chrome.runtime.sendMessage({ type: "GET_SETTINGS" });708    const s = (resp as { ok: boolean; data?: { manualSummonDomains?: Record<string, { summonCount: number }> } }).data;709    const domain = getPageDomain();710    const record = domain ? s?.manualSummonDomains?.[domain] : undefined;711    aggressionLevel = !record ? 0 : record.summonCount >= 2 ? 2 : 1;712  } catch { /* SW may be starting up; proceed with normal scan */ }713714  setTimeout(() => initialScan(aggressionLevel, false), 0);715  setTimeout(() => initialScan(aggressionLevel, false), 500);716  setTimeout(() => initialScan(aggressionLevel, true), 1500);717})();718719// ── Card autofill (State 7) ─────────────────────────────────────────720// Card forms get a parallel injection path. The login icon-injection gate721// in reattachListeners deliberately skips non-text fields, so we wire722// cards independently rather than retrofit AUTOFILL_FIELD_TYPES — keeping723// card detection contained makes the boundary easy to follow.724const processedCardInputs = new WeakMap<HTMLInputElement, () => void>();725let currentCardDismiss: (() => void) | null = null;726let currentCardAnchor: HTMLInputElement | null = null;727let lastDismissedCardField: HTMLInputElement | null = null;728729async function fetchSavedCards(): Promise<CardSelectorEntry[]> {730  const resp = await chrome.runtime.sendMessage({731    type: "AUTOFILL_QUERY",732    payload: { domain: getPageDomain(), kind: "card" },733  }).catch(() => null);734  const r = resp as { ok: boolean; data?: CardSelectorEntry[] } | null;735  return r?.ok ? (r.data ?? []) : [];736}737738async function openCardSelector(anchor: HTMLInputElement): Promise<void> {739  if (!canOpen()) return;740  if (currentCardDismiss && currentCardAnchor === anchor) return;741  if (anchor === lastDismissedCardField) return;742  if (anchor !== lastDismissedCardField) lastDismissedCardField = null;743  if (wasAlreadyFilled(anchor)) return;744745  const cards = await fetchSavedCards();746  if (cards.length === 0) return; // no saved cards → nothing to offer747748  const cardForm = detectCardForm();749  if (!cardForm?.number) return;750751  currentCardDismiss?.();752  currentCardAnchor = anchor;753  currentCardDismiss = showCardSelector(754    anchor,755    cards,756    {757      domain: getPageDomain(),758      onFill: (entry) => {759        if (!cardForm) return;760        fillCardForm(cardForm, {761          cardNumber: entry.cardNumber ?? "",762          expMonth: entry.expMonth ?? "",763          expYear: entry.expYear ?? "",764          cvc: entry.cvc ?? "",765          cardholderName: entry.cardholderName ?? "",766        });767        // All four card field types share the same form — recording the768        // number field's form is sufficient to suppress reopens on any of769        // them via wasAlreadyFilled().770        recordFillSuccess(cardForm.number, cardForm.cvc, cardForm.expiryCombo, cardForm.name);771        currentCardDismiss = null;772        currentCardAnchor = null;773      },774      onDismiss: () => {775        lastDismissedCardField = anchor;776        startDismissLock();777        currentCardDismiss = null;778        currentCardAnchor = null;779      },780    }781  );782}783784function injectCardIcon(field: HTMLInputElement): void {785  if (processedCardInputs.has(field)) return;786  const cleanup = injectFieldIcon(field, () => {787    currentCardDismiss?.();788    currentCardDismiss = null;789    lastDismissedCardField = null;790    dismissLock = false;791    if (dismissLockTimer) { clearTimeout(dismissLockTimer); dismissLockTimer = null; }792    clearFillStateForExplicitSummon(field);793    field.focus({ preventScroll: true });794    void openCardSelector(field);795  });796  processedCardInputs.set(field, cleanup);797}798799function setupCardAutofill(): void {800  function scan() {801    const cardForm = detectCardForm();802    if (!cardForm?.number) return;803    if (!isVisible(cardForm.number)) return;804    injectCardIcon(cardForm.number);805  }806807  // Initial detection sweep — same retry cadence as login fields so808  // late-hydrating SPA checkout pages get caught.809  setTimeout(scan, 0);810  setTimeout(scan, 500);811  setTimeout(scan, 1500);812813  // Re-scan on DOM mutation (separate from the login MutationObserver814  // because card forms typically appear on a single navigation event,815  // not field-by-field — coarser observation is sufficient here).816  let pending = false;817  new MutationObserver(() => {818    if (pending) return;819    pending = true;820    setTimeout(() => { pending = false; scan(); }, 200);821  }).observe(document.body, { childList: true, subtree: true });822823  // Field-focus path: on focus of a cc-number input, ensure icon is824  // present and consider opening the selector when the user explicitly825  // clicks into the card number field.826  document.addEventListener("focusin", (e) => {827    const target = e.target;828    if (!(target instanceof HTMLInputElement)) return;829    const cardForm = detectCardForm();830    if (cardForm?.number === target) {831      injectCardIcon(target);832    }833  }, true);834}835836chrome.runtime.onMessage.addListener((msg, sender, sendResponse) => {837  // Ignore anything not originating from our own background/service worker.838  if (sender.id !== chrome.runtime.id) return;839  if (msg?.type === "GET_SITE_PASSWORD_POLICY") {840    const policy = detectPasswordPolicy();841    sendResponse({ ok: true, data: policy });842    return true;843  }844  if (msg?.type === "PING") {845    sendResponse({ ok: true });846    return true;847  }848  if (msg?.type === "SUMMON_AUTOFILL") {849    const source = (msg as { type: string; source?: string }).source;850    const isShortcut = source === "shortcut";851    const isPasskeyUnlock = source === "passkey-unlock";852853    const activeInput = getDeepActiveInput();854    const fields = detectLoginFields();855    const hasForm = isLoginForm(fields) || isSignupForm(fields);856857    if (hasForm) {858      // Prefer the currently focused field if it's a login field, otherwise859      // fall back to the first password field, then username/email.860      const inForm = activeInput && fields.some(f => f.el === activeInput);861      const target = inForm862        ? activeInput863        : (fields.find(f => f.type === "password")?.el864            ?? fields.find(f => f.type === "username" || f.type === "email")?.el);865      if (target) {866        // Explicit user summon (shortcut or extension button) — bypass all867        // suppression layers. The user is asking for the popup right now.868        clearFillStateForExplicitSummon(target);869        dismissLock = false;870        if (dismissLockTimer) { clearTimeout(dismissLockTimer); dismissLockTimer = null; }871        lastDismissedField = null;872        void handleFieldInteraction(target);873      }874    } else if (isPasskeyUnlock) {875      // Vault is locked during a passkey GET request. Show the inline unlock876      // prompt anchored to whatever element is focused on the page (typically877      // the passkey/sign-in button the user just tapped).878      const anchor = (document.activeElement instanceof HTMLElement && document.activeElement !== document.body)879        ? document.activeElement as unknown as HTMLInputElement880        : null;881      if (anchor) {882        currentDismiss?.();883        currentAnchorField = null;884        passkeySummonActive = true;885        currentDismiss = showAutofillSelector(anchor, [], () => {}, {886          domain: getPageDomain(),887          locked: true,888          onDismiss: () => { passkeySummonActive = false; },889        });890      }891    } else if (isShortcut) {892      // Shortcut on a page with no login form — show clipboard-copy search mode.893      showSearchPalette();894    }895896    // Record this domain for the recall system when triggered via shortcut.897    if (isShortcut) {898      const domain = getPageDomain();899      if (domain) {900        chrome.runtime.sendMessage({ type: "RECORD_MANUAL_SUMMON", payload: { domain } }).catch(() => {});901      }902    }903904    sendResponse({ ok: hasForm || isShortcut || isPasskeyUnlock });905    return true;906  }907  if (msg?.type === "PASSKEY_PRO_GATE") {908    // Background rejected a passkey request for a free user. Show State 11909    // so they know what happened and can choose to upgrade.910    showPasskeyProGate();911    sendResponse({ ok: true });912    return true;913  }914  if (msg?.type === "SHOW_PASSKEY_TOAST") {915    // Block autofill selector for the lifetime of the toast and dismiss anything open.916    passkeyToastActive = true;917    if (currentDismiss) {918      currentDismiss();919      currentDismiss = null;920      currentAnchorField = null;921    }922    return false; // inject.tsx owns the toast and calls sendResponse923  }924  if (msg?.type === "DISMISS_PASSKEY_TOAST") {925    passkeyToastActive = false;926    return false; // inject.tsx handles the actual dismissal927  }928  if (msg?.type === "VAULT_UNLOCKED") {929    if (passkeySummonActive) {930      // This unlock was for a pending passkey GET request. Just dismiss the931      // inline popup — the passkey approval toast takes over from here.932      passkeySummonActive = false;933      if (currentDismiss) {934        currentDismiss();935        currentDismiss = null;936        currentAnchorField = null;937      }938      sendResponse({ ok: true });939      return true;940    }941    // Normal autofill path: close the locked-state prompt and re-open with942    // fresh entry data at the same anchor field.943    const savedField = currentAnchorField;944    if (currentDismiss) {945      currentDismiss();946      currentDismiss = null;947      currentAnchorField = null;948    }949    void handleFieldInteraction(savedField ?? undefined);950    sendResponse({ ok: true });951    return true;952  }953  return true;954});955956// inject.tsx posts this when the passkey toast closes (approve, deny, or timeout)957// so we know it's safe to allow autofill again.958window.addEventListener("message", (e: MessageEvent) => {959  const d = e.data as { source?: string; type?: string } | undefined;960  if (d?.source === "peach-passkey-toast" && d?.type === "toast-closed") {961    passkeyToastActive = false;962  }963});964965// ── Firefox passkey detection bridge (legacy observer path) ─────────────966//967// Pre-v2.12.0 the MAIN-world `passkeys-firefox.ts` was an observer — it968// emitted `peach-passkey-firefox` postMessages so this content script could969// surface State 12 (an inline "Save passkey to Peach" offer). v2.12.0970// replaced the observer with a full interception proxy (the page never971// reaches a real navigator.credentials.create on Firefox anymore), and the972// approval UI is opened by the background as part of the ceremony itself.973// When the proxy is active the offer would be redundant noise, so the974// listener gates on the flag. Once the proxy is removed (Firefox ships975// webAuthenticationProxy) this whole block goes too.976if (!FIREFOX_USE_CONTENT_SCRIPT_PROXY) {977  let lastPasskeyOfferAt = 0;978  const PASSKEY_OFFER_COOLDOWN_MS = 30_000;979980  window.addEventListener("message", (event: MessageEvent) => {981    if (event.source !== window) return;982    const data = event.data as { source?: string; type?: string; rpId?: string; rpName?: string; userName?: string; userDisplayName?: string } | undefined;983    if (!data || data.source !== "peach-passkey-firefox") return;984    if (detectBrowser() !== "firefox") return;985    if (data.type !== "create") return;986987    // Cooldown: a single page interaction can fire multiple credentials.create988    // calls. Show the offer at most once per 30 seconds per page session.989    const now = Date.now();990    if (now - lastPasskeyOfferAt < PASSKEY_OFFER_COOLDOWN_MS) return;991    lastPasskeyOfferAt = now;992993    const domain = location.hostname.replace(/^www\./, "");994    chrome.runtime.sendMessage({995      type: "GET_PASSKEY_OFFER_DECLINED",996      payload: { domain },997    }).then((res: { ok: boolean; data?: boolean } | undefined) => {998      if (res?.data === true) return;999      const rpId = data.rpId ?? domain;1000      showPasskeyRegistrationOffer({1001        rpId,1002        rpName: data.rpName,1003        userName: data.userName,1004        userDisplayName: data.userDisplayName,1005      });1006    }).catch(() => {});1007  });1008}10091010// Surface State 11 (passkey-available) only when it adds value:1011//   - Cross-browser entry: Chrome passkey on Firefox or vice versa — neither1012//     browser will auto-route, so the banner explains the re-register need.1013//   - Firefox + same-browser entry: Firefox has no equivalent of1014//     webAuthenticationProxy, so without a banner the user has no signal that1015//     Peach is the source.1016// On Chrome with a same-browser entry: skip — webAuthenticationProxy handles1017// the page's own credentials.get transparently and the popup approval view1018// already surfaces it. A banner here would just be noise.1019//1020// Dedupe across navigation: each navigation re-injects this content script.1021// chrome.storage.session keyed by domain is the natural per-tab/per-session1022// memory; session storage clears when the user closes the browser.1023{1024  function checkPasskeyAvailability() {1025    const domain = location.hostname.replace(/^www\./, "");1026    if (!domain) return;1027    const sessionKey = `peach_state11_shown:${domain}`;1028    chrome.storage.session?.get(sessionKey).then((stored) => {1029      if (stored && (stored as Record<string, unknown>)[sessionKey]) return;1030      chrome.runtime.sendMessage({1031        type: "GET_PASSKEY_FOR_DOMAIN",1032        payload: { domain },1033      }).then((res: { ok: boolean; data?: { rpId: string; userName: string; browser?: "chrome" | "firefox" } | null } | undefined) => {1034        const data = res?.data;1035        if (!data) return;1036        const current = detectBrowser();1037        const isCrossBrowser =1038          data.browser && current !== "unknown" && data.browser !== current;1039        const valuableOnFirefox = current === "firefox";1040        if (!isCrossBrowser && !valuableOnFirefox) return;1041        chrome.storage.session?.set({ [sessionKey]: Date.now() }).catch(() => {});1042        showPasskeyAvailable({1043          rpId: data.rpId,1044          userName: data.userName,1045          fromBrowser: data.browser,1046          currentBrowser: current,1047        });1048      }).catch(() => {});1049    }).catch(() => {});1050  }10511052  // Defer until DOM is interactive — content_scripts run at document_idle but1053  // some pages still mutate visibly afterwards. A short delay also avoids1054  // surfacing the State 11 toast while the user is in the middle of typing.1055  if (document.readyState === "loading") {1056    document.addEventListener("DOMContentLoaded", () => setTimeout(checkPasskeyAvailability, 800));1057  } else {1058    setTimeout(checkPasskeyAvailability, 800);1059  }1060}