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 findTOTPField(): HTMLInputElement | null {279  const inputs = document.querySelectorAll<HTMLInputElement>("input");280  for (const input of inputs) {281    if (!isVisible(input)) continue;282    const autocomplete = input.autocomplete.toLowerCase();283    const nameId = (input.name + input.id).toLowerCase();284    const nameIdPlaceholder = nameId + input.placeholder.toLowerCase();285    if (286      autocomplete === "one-time-code" ||287      /\botp\b|\btotp\b|\b2fa\b|\bmfa\b|\bcode\b/.test(nameIdPlaceholder)288    ) {289      return input;290    }291    const labelEl = input.closest("label");292    if (labelEl && /\botp\b|\btotp\b|\b2fa\b|\bmfa\b|\bcode\b/.test(labelEl.textContent?.toLowerCase() ?? "")) {293      return input;294    }295  }296  return null;297}298299async function autofillTOTP(totpField: HTMLInputElement, totpSecret: string): Promise<void> {300  await new Promise((r) => setTimeout(r, 400));301  if (totpField.value === "" || totpField.value.trim() === "") {302    const { code } = generateTOTP(totpSecret);303    setNativeValue(totpField, code);304    showToast("TOTP autofilled");305  }306}307308309async function handleAutofill(310  field: HTMLInputElement,311  usernameEl: HTMLInputElement | null,312  passwordEl: HTMLInputElement,313  entry: VaultEntry314): Promise<void> {315  if (!entry.username && !entry.password) return;316  const pageDomain = getPageDomain();317  const form = passwordEl.closest("form") as HTMLFormElement | null;318  fillFields(usernameEl, passwordEl, entry.username ?? "", entry.password ?? "", form, pageDomain);319320  if (entry.canary) {321    chrome.runtime.sendMessage({322      type: "FIRE_CANARY_PING",323      payload: {324        webhookUrl: entry.canary.webhookUrl,325        entryTitle: entry.title,326        trigger: "autofilled",327      },328    }).catch(() => {});329    chrome.runtime.sendMessage({330      type: "UPDATE_ENTRY",331      payload: {332        id: entry.id,333        patch: {334          canary: {335            ...entry.canary,336            lastPinged: Date.now(),337            pingCount: (entry.canary.pingCount ?? 0) + 1,338          },339        },340      },341    }).catch(() => {});342  }343344  if (entry.totp) {345    const { code } = generateTOTP(entry.totp);346    let alreadyWritten = false;347    try { await navigator.clipboard.writeText(code); alreadyWritten = true; } catch {}348    const response = await chrome.runtime.sendMessage({349      type: "COPY",350      payload: { text: code, label: "TOTP", alreadyWritten },351    });352    if (alreadyWritten || (response as { ok?: boolean }).ok) {353      showToast("TOTP copied · " + code);354    }355    const totpField = findTOTPField();356    if (totpField) {357      autofillTOTP(totpField, entry.totp);358    }359  }360}361362async function fetchAutofillEntries(363  domain: string,364  includeAll = false365): Promise<{ entries: SelectorEntry[]; locked: boolean }> {366  const response = await chrome.runtime.sendMessage({367    type: "AUTOFILL_QUERY",368    payload: { domain, includeAll },369  });370  const res = response as { ok: boolean; data?: SelectorEntry[]; error?: string };371  if (!res.ok && res.error === "VAULT_LOCKED") {372    return { entries: [], locked: true };373  }374  return { entries: res.data ?? [], locked: false };375}376377378function resolveAutofillFieldType(379  el: HTMLInputElement,380  predictedType?: FieldPrediction["type"] | null381): "password" | "username" | "email" | null {382  if (383    predictedType === "password" ||384    predictedType === "username" ||385    predictedType === "email"386  ) {387    return predictedType;388  }389390  const detected = detectLoginFields().find((field) => field.el === el)?.type;391  if (detected && AUTOFILL_FIELD_TYPES.has(detected)) {392    return detected;393  }394395  const htmlType = el.type.toLowerCase();396  if (htmlType === "password") return "password";397  if (htmlType === "email") return "email";398  return null;399}400401async function openAutofillSelector(402  anchorField: HTMLInputElement,403  usernameEl: HTMLInputElement | null,404  passwordEl: HTMLInputElement,405  domainEntries: SelectorEntry[],406  searchableEntries: SelectorEntry[],407  domain: string408): Promise<void> {409  // No saved entries for this site → signup/new-account mode.410  // Fetch vault identities for the identity-first surface and locate411  // the confirm-password field so "Copy & fill" can populate it too.412  const isSignup = domainEntries.length === 0;413  let savedIdentities: SavedIdentity[] | undefined;414  let confirmEl: HTMLInputElement | null = null;415  if (isSignup) {416    try {417      const idResp = await chrome.runtime.sendMessage({ type: "GET_IDENTITIES" }).catch(() => null) as418        { ok: boolean; data?: SavedIdentity[] } | null;419      if (idResp?.ok && Array.isArray(idResp.data)) savedIdentities = idResp.data;420    } catch { /* silent fallback */ }421422    const form = passwordEl.closest("form") ?? document.body;423    const allPwInputs = Array.from(form.querySelectorAll<HTMLInputElement>("input[type='password']"));424    confirmEl = allPwInputs.find(425      (el) => el !== passwordEl && /confirm|repeat|verify/i.test(el.name + el.id + el.placeholder)426    ) ?? (allPwInputs.length >= 2 ? allPwInputs.find((el) => el !== passwordEl) ?? null : null);427  }428429  currentDismiss?.();430  currentAnchorField = anchorField;431  currentDismiss = showAutofillSelector(432    anchorField,433    domainEntries,434    async (id: string) => {435      currentDismiss = null;436      currentAnchorField = null;437      const entryResponse = await chrome.runtime.sendMessage({438        type: "GET_ENTRY_FOR_FILL",439        payload: { id },440      });441      const entry = (entryResponse as { ok: boolean; data?: VaultEntry }).data;442      if (entry) {443        await handleAutofill(anchorField, usernameEl, passwordEl, entry);444        recordFillSuccess(anchorField, usernameEl, passwordEl);445        // Offer to remember the current site for this entry only if none of446        // its known domains (primary + additional) match — otherwise the447        // user already mapped it and the prompt would be noise.448        const pageDomain = location.hostname.replace(/^www\./, "");449        const entryDomains = new Set<string>();450        for (const u of [entry.url, ...(entry.additionalUrls ?? [])]) {451          try {452            if (u) entryDomains.add(new URL(u).hostname.replace(/^www\./, ""));453          } catch { /* ignore unparseable */ }454        }455        if (pageDomain && entryDomains.size > 0 && !entryDomains.has(pageDomain)) {456          showRememberSiteToast(pageDomain, entry.id);457        }458      }459    },460    {461      domain,462      searchableEntries,463      isSignup,464      savedIdentities,465      onFillFields: (username, password) => {466        const form = passwordEl.closest("form") as HTMLFormElement | null;467        fillFields(usernameEl, passwordEl, username, password, form, getPageDomain());468        if (password && confirmEl) setNativeValue(confirmEl, password);469        recordFillSuccess(anchorField, usernameEl, passwordEl);470      },471      onDismiss: () => { lastDismissedField = anchorField; startDismissLock(); },472    }473  );474}475476477async function handleFieldInteraction(anchorField?: HTMLInputElement | null): Promise<void> {478  const field = anchorField ?? getDeepActiveInput();479  if (!field) return;480  if (!isVisible(field)) return;481482  // Passkey toast is visible — don't open the credential selector alongside it.483  if (passkeyToastActive) return;484485  // Layer 2: post-dismiss global lock. Catches rapid focus moves between486  // fields immediately after Escape/click-outside.487  if (!canOpen()) return;488489  // If a selector is already open for this exact field, don't flicker it.490  if (currentDismiss && currentAnchorField === field) return;491492  // If focus moved to a different field, the previous per-field dismiss lock493  // no longer applies.494  if (field !== lastDismissedField) lastDismissedField = null;495  // Layer 1: the user explicitly dismissed this field's selector — don't496  // reopen it until focus has genuinely moved away and come back.497  if (field === lastDismissedField) return;498499  // Fill-success lock: Peach already filled this form (or fired a fill500  // anywhere on the page within the grace window). Sites often refocus an501  // input on submit click, on validation, or on a transition to a success502  // state — none of those should re-open the popup.503  if (wasAlreadyFilled(field)) return;504505  // Prevent two concurrent calls for the same field (e.g. focusin + icon click506  // firing simultaneously — the second call would dismiss the first's selector).507  if (pendingInteractions.has(field)) return;508  pendingInteractions.add(field);509510  try {511    const fieldType = field.type.toLowerCase();512513    const mlPromise = contentMLDetector.predictBatch([field]).then((preds) => {514      return preds[0] ?? null;515    });516517    const mlPrediction = await new Promise<FieldPrediction | null>((resolve) => {518      const timeout = setTimeout(() => resolve(null), 150);519      mlPromise.then((pred) => {520        clearTimeout(timeout);521        resolve(pred);522      });523    });524525    if (passkeyToastActive) return;526527    if (fieldType !== "password" && mlPrediction && mlPrediction.type !== "username" && mlPrediction.type !== "email") {528      return;529    }530531    const autofillFieldType = resolveAutofillFieldType(field, mlPrediction?.type);532    if (autofillFieldType) {533      reattachListeners(field, autofillFieldType);534    }535536    let fields = detectLoginFields();537    const loginForm = isLoginForm(fields);538    const signupForm = isSignupForm(fields);539    if (!loginForm && !signupForm) {540      return;541    }542543    const domain = getPageDomain();544    const firstResult = await fetchAutofillEntries(domain);545    if (passkeyToastActive) return;546547    // Vault is locked — show an inline unlock prompt.548    // Re-triggering after unlock is handled by the VAULT_UNLOCKED message so549    // there is no double-trigger race between onUnlocked and the broadcast.550    if (firstResult.locked) {551      currentDismiss?.();552      currentAnchorField = field;553      currentDismiss = showAutofillSelector(554        field,555        [],556        () => {},557        { domain, locked: true, onDismiss: () => { lastDismissedField = field; startDismissLock(); } }558      );559      return;560    }561562    const entries = firstResult.entries;563    const allEntries = entries.length === 0564      ? (await fetchAutofillEntries(domain, true)).entries565      : entries;566567    if (passkeyToastActive) return;568569    let usernameEl: HTMLInputElement | null = null;570    const userField = fields.find((f) => f.type === "username" || f.type === "email");571    if (userField) usernameEl = userField.el;572    const pwField = fields.find((f) => f.type === "password");573    if (!pwField) return;574    const passwordEl = pwField.el;575576    await openAutofillSelector(field, usernameEl, passwordEl, entries, allEntries, domain);577  } finally {578    pendingInteractions.delete(field);579  }580}581582async function onFocusIn(e: Event): Promise<void> {583  // Submit-button focus: catch the brief refocus some sites do when the584  // user clicks the login/submit button. Without this guard, that focus585  // event reaches handleFieldInteraction → getDeepActiveInput, and on586  // pages where the button is also a labelled <input> we briefly attempt587  // to open the popup over the very button the user just clicked.588  if (isSubmitButton(e.target)) return;589  await handleFieldInteraction();590}591592function reattachListeners(593  el: HTMLInputElement,594  detectedType?: "password" | "username" | "email",595  contextFields?: ReturnType<typeof detectLoginFields>596): void {597  if (processedInputs.has(el)) return;598  if (!resolveAutofillFieldType(el, detectedType)) return;599  // Only inject icon when a real login/signup form is present on the page600  const fields = contextFields ?? detectLoginFields();601  if (!isLoginForm(fields) && !isSignupForm(fields)) return;602603  const cleanup = injectFieldIcon(el, () => {604    currentDismiss?.();605    currentDismiss = null;606    lastDismissedField = null; // icon click is an explicit user open — clear per-field lock607    dismissLock = false; // ...and the global lock608    if (dismissLockTimer) { clearTimeout(dismissLockTimer); dismissLockTimer = null; }609    clearFillStateForExplicitSummon(el);610    el.focus({ preventScroll: true });611    void handleFieldInteraction(el);612  });613  processedInputs.set(el, cleanup);614}615616const debouncedReattach = debounce(() => {617  const allFields = detectLoginFields();618  // Don't inject anything if there's no real login/signup form on this page619  if (!isLoginForm(allFields) && !isSignupForm(allFields)) return;620  const newFields = allFields.filter(621    (f) => AUTOFILL_FIELD_TYPES.has(f.type) && !processedInputs.has(f.el)622  );623  for (const f of newFields) {624    reattachListeners(f.el, f.type, allFields);625  }626  // 200ms debounce — below this, Peach and the host page's reactive layer627  // fight over the same layout properties every frame on React/Vue/Angular628  // login forms (v1.4.14 regression, Projects.md §4.7). Do not lower.629}, 200);630631function setupMutationObserver(): void {632  const observer = new MutationObserver(debouncedReattach);633  observer.observe(document.body, {634    childList: true,635    subtree: true,636    attributes: true,637    attributeFilter: ["type", "autocomplete", "name", "id", "placeholder", "hidden"],638  });639}640641function initialScan(aggressionLevel = 0, isFinalPass = false) {642  const allFields = detectLoginFields();643  const hasKnownForm = isLoginForm(allFields) || isSignupForm(allFields);644645  if (aggressionLevel === 0 && !hasKnownForm) return;646647  const newFields = allFields.filter(648    (f) => AUTOFILL_FIELD_TYPES.has(f.type) && !processedInputs.has(f.el)649  );650651  for (const f of newFields) {652    reattachListeners(f.el, f.type, allFields);653  }654655  // Level 2, final pass: inject icon on any visible password field even if656  // the form-context gate in reattachListeners would normally skip it.657  if (aggressionLevel >= 2 && isFinalPass && newFields.length === 0) {658    const pwInputs = document.querySelectorAll<HTMLInputElement>('input[type="password"]');659    for (const el of pwInputs) {660      if (isVisible(el) && !processedInputs.has(el)) {661        const cleanup = injectFieldIcon(el, () => {662          currentDismiss?.();663          currentDismiss = null;664          lastDismissedField = null;665          dismissLock = false;666          if (dismissLockTimer) { clearTimeout(dismissLockTimer); dismissLockTimer = null; }667          clearFillStateForExplicitSummon(el);668          el.focus({ preventScroll: true });669          void handleFieldInteraction(el);670        });671        processedInputs.set(el, cleanup);672      }673    }674  }675}676677document.addEventListener("focusin", onFocusIn);678679setupMutationObserver();680setupSaveDetection();681setupCardAutofill();682683// SPA navigation reset: the content script does not reload across in-app684// route changes (history.pushState, hash navigation, framework routers).685// When the URL changes we clear the page-level fill timestamp so the next686// page works normally; filledForms (a WeakSet) self-empties as old form687// elements leave the DOM. subtree:false because route swaps reliably688// mutate document.body's direct children — subtree:true would fire on689// every internal DOM update and cost us a re-check per mutation.690let lastObservedUrl = location.href;691new MutationObserver(() => {692  if (location.href !== lastObservedUrl) {693    lastObservedUrl = location.href;694    pageFilledAt = null;695  }696}).observe(document.body, { childList: true, subtree: false });697698// Async init: check recall map before running the initial scans so we can699// apply the right aggression level for domains the user has needed before.700(async () => {701  let aggressionLevel = 0;702  try {703    const resp = await chrome.runtime.sendMessage({ type: "GET_SETTINGS" });704    const s = (resp as { ok: boolean; data?: { manualSummonDomains?: Record<string, { summonCount: number }> } }).data;705    const domain = getPageDomain();706    const record = domain ? s?.manualSummonDomains?.[domain] : undefined;707    aggressionLevel = !record ? 0 : record.summonCount >= 2 ? 2 : 1;708  } catch { /* SW may be starting up; proceed with normal scan */ }709710  setTimeout(() => initialScan(aggressionLevel, false), 0);711  setTimeout(() => initialScan(aggressionLevel, false), 500);712  setTimeout(() => initialScan(aggressionLevel, true), 1500);713})();714715// ── Card autofill (State 7) ─────────────────────────────────────────716// Card forms get a parallel injection path. The login icon-injection gate717// in reattachListeners deliberately skips non-text fields, so we wire718// cards independently rather than retrofit AUTOFILL_FIELD_TYPES — keeping719// card detection contained makes the boundary easy to follow.720const processedCardInputs = new WeakMap<HTMLInputElement, () => void>();721let currentCardDismiss: (() => void) | null = null;722let currentCardAnchor: HTMLInputElement | null = null;723let lastDismissedCardField: HTMLInputElement | null = null;724725async function fetchSavedCards(): Promise<CardSelectorEntry[]> {726  const resp = await chrome.runtime.sendMessage({727    type: "AUTOFILL_QUERY",728    payload: { domain: getPageDomain(), kind: "card" },729  }).catch(() => null);730  const r = resp as { ok: boolean; data?: CardSelectorEntry[] } | null;731  return r?.ok ? (r.data ?? []) : [];732}733734async function openCardSelector(anchor: HTMLInputElement): Promise<void> {735  if (!canOpen()) return;736  if (currentCardDismiss && currentCardAnchor === anchor) return;737  if (anchor === lastDismissedCardField) return;738  if (anchor !== lastDismissedCardField) lastDismissedCardField = null;739  if (wasAlreadyFilled(anchor)) return;740741  const cards = await fetchSavedCards();742  if (cards.length === 0) return; // no saved cards → nothing to offer743744  const cardForm = detectCardForm();745  if (!cardForm?.number) return;746747  currentCardDismiss?.();748  currentCardAnchor = anchor;749  currentCardDismiss = showCardSelector(750    anchor,751    cards,752    {753      domain: getPageDomain(),754      onFill: (entry) => {755        if (!cardForm) return;756        fillCardForm(cardForm, {757          cardNumber: entry.cardNumber ?? "",758          expMonth: entry.expMonth ?? "",759          expYear: entry.expYear ?? "",760          cvc: entry.cvc ?? "",761          cardholderName: entry.cardholderName ?? "",762        });763        // All four card field types share the same form — recording the764        // number field's form is sufficient to suppress reopens on any of765        // them via wasAlreadyFilled().766        recordFillSuccess(cardForm.number, cardForm.cvc, cardForm.expiryCombo, cardForm.name);767        currentCardDismiss = null;768        currentCardAnchor = null;769      },770      onDismiss: () => {771        lastDismissedCardField = anchor;772        startDismissLock();773        currentCardDismiss = null;774        currentCardAnchor = null;775      },776    }777  );778}779780function injectCardIcon(field: HTMLInputElement): void {781  if (processedCardInputs.has(field)) return;782  const cleanup = injectFieldIcon(field, () => {783    currentCardDismiss?.();784    currentCardDismiss = null;785    lastDismissedCardField = null;786    dismissLock = false;787    if (dismissLockTimer) { clearTimeout(dismissLockTimer); dismissLockTimer = null; }788    clearFillStateForExplicitSummon(field);789    field.focus({ preventScroll: true });790    void openCardSelector(field);791  });792  processedCardInputs.set(field, cleanup);793}794795function setupCardAutofill(): void {796  function scan() {797    const cardForm = detectCardForm();798    if (!cardForm?.number) return;799    if (!isVisible(cardForm.number)) return;800    injectCardIcon(cardForm.number);801  }802803  // Initial detection sweep — same retry cadence as login fields so804  // late-hydrating SPA checkout pages get caught.805  setTimeout(scan, 0);806  setTimeout(scan, 500);807  setTimeout(scan, 1500);808809  // Re-scan on DOM mutation (separate from the login MutationObserver810  // because card forms typically appear on a single navigation event,811  // not field-by-field — coarser observation is sufficient here).812  let pending = false;813  new MutationObserver(() => {814    if (pending) return;815    pending = true;816    setTimeout(() => { pending = false; scan(); }, 200);817  }).observe(document.body, { childList: true, subtree: true });818819  // Field-focus path: on focus of a cc-number input, ensure icon is820  // present and consider opening the selector when the user explicitly821  // clicks into the card number field.822  document.addEventListener("focusin", (e) => {823    const target = e.target;824    if (!(target instanceof HTMLInputElement)) return;825    const cardForm = detectCardForm();826    if (cardForm?.number === target) {827      injectCardIcon(target);828    }829  }, true);830}831832chrome.runtime.onMessage.addListener((msg, sender, sendResponse) => {833  // Ignore anything not originating from our own background/service worker.834  if (sender.id !== chrome.runtime.id) return;835  if (msg?.type === "GET_SITE_PASSWORD_POLICY") {836    const policy = detectPasswordPolicy();837    sendResponse({ ok: true, data: policy });838    return true;839  }840  if (msg?.type === "PING") {841    sendResponse({ ok: true });842    return true;843  }844  if (msg?.type === "SUMMON_AUTOFILL") {845    const source = (msg as { type: string; source?: string }).source;846    const isShortcut = source === "shortcut";847    const isPasskeyUnlock = source === "passkey-unlock";848849    const activeInput = getDeepActiveInput();850    const fields = detectLoginFields();851    const hasForm = isLoginForm(fields) || isSignupForm(fields);852853    if (hasForm) {854      // Prefer the currently focused field if it's a login field, otherwise855      // fall back to the first password field, then username/email.856      const inForm = activeInput && fields.some(f => f.el === activeInput);857      const target = inForm858        ? activeInput859        : (fields.find(f => f.type === "password")?.el860            ?? fields.find(f => f.type === "username" || f.type === "email")?.el);861      if (target) {862        // Explicit user summon (shortcut or extension button) — bypass all863        // suppression layers. The user is asking for the popup right now.864        clearFillStateForExplicitSummon(target);865        dismissLock = false;866        if (dismissLockTimer) { clearTimeout(dismissLockTimer); dismissLockTimer = null; }867        lastDismissedField = null;868        void handleFieldInteraction(target);869      }870    } else if (isPasskeyUnlock) {871      // Vault is locked during a passkey GET request. Show the inline unlock872      // prompt anchored to whatever element is focused on the page (typically873      // the passkey/sign-in button the user just tapped).874      const anchor = (document.activeElement instanceof HTMLElement && document.activeElement !== document.body)875        ? document.activeElement as unknown as HTMLInputElement876        : null;877      if (anchor) {878        currentDismiss?.();879        currentAnchorField = null;880        passkeySummonActive = true;881        currentDismiss = showAutofillSelector(anchor, [], () => {}, {882          domain: getPageDomain(),883          locked: true,884          onDismiss: () => { passkeySummonActive = false; },885        });886      }887    } else if (isShortcut) {888      // Shortcut on a page with no login form — show clipboard-copy search mode.889      showSearchPalette();890    }891892    // Record this domain for the recall system when triggered via shortcut.893    if (isShortcut) {894      const domain = getPageDomain();895      if (domain) {896        chrome.runtime.sendMessage({ type: "RECORD_MANUAL_SUMMON", payload: { domain } }).catch(() => {});897      }898    }899900    sendResponse({ ok: hasForm || isShortcut || isPasskeyUnlock });901    return true;902  }903  if (msg?.type === "PASSKEY_PRO_GATE") {904    // Background rejected a passkey request for a free user. Show State 11905    // so they know what happened and can choose to upgrade.906    showPasskeyProGate();907    sendResponse({ ok: true });908    return true;909  }910  if (msg?.type === "SHOW_PASSKEY_TOAST") {911    // Block autofill selector for the lifetime of the toast and dismiss anything open.912    passkeyToastActive = true;913    if (currentDismiss) {914      currentDismiss();915      currentDismiss = null;916      currentAnchorField = null;917    }918    return false; // inject.tsx owns the toast and calls sendResponse919  }920  if (msg?.type === "DISMISS_PASSKEY_TOAST") {921    passkeyToastActive = false;922    return false; // inject.tsx handles the actual dismissal923  }924  if (msg?.type === "VAULT_UNLOCKED") {925    if (passkeySummonActive) {926      // This unlock was for a pending passkey GET request. Just dismiss the927      // inline popup — the passkey approval toast takes over from here.928      passkeySummonActive = false;929      if (currentDismiss) {930        currentDismiss();931        currentDismiss = null;932        currentAnchorField = null;933      }934      sendResponse({ ok: true });935      return true;936    }937    // Normal autofill path: close the locked-state prompt and re-open with938    // fresh entry data at the same anchor field.939    const savedField = currentAnchorField;940    if (currentDismiss) {941      currentDismiss();942      currentDismiss = null;943      currentAnchorField = null;944    }945    void handleFieldInteraction(savedField ?? undefined);946    sendResponse({ ok: true });947    return true;948  }949  return true;950});951952// inject.tsx posts this when the passkey toast closes (approve, deny, or timeout)953// so we know it's safe to allow autofill again.954window.addEventListener("message", (e: MessageEvent) => {955  const d = e.data as { source?: string; type?: string } | undefined;956  if (d?.source === "peach-passkey-toast" && d?.type === "toast-closed") {957    passkeyToastActive = false;958  }959});960961// ── Firefox passkey detection bridge (legacy observer path) ─────────────962//963// Pre-v2.12.0 the MAIN-world `passkeys-firefox.ts` was an observer — it964// emitted `peach-passkey-firefox` postMessages so this content script could965// surface State 12 (an inline "Save passkey to Peach" offer). v2.12.0966// replaced the observer with a full interception proxy (the page never967// reaches a real navigator.credentials.create on Firefox anymore), and the968// approval UI is opened by the background as part of the ceremony itself.969// When the proxy is active the offer would be redundant noise, so the970// listener gates on the flag. Once the proxy is removed (Firefox ships971// webAuthenticationProxy) this whole block goes too.972if (!FIREFOX_USE_CONTENT_SCRIPT_PROXY) {973  let lastPasskeyOfferAt = 0;974  const PASSKEY_OFFER_COOLDOWN_MS = 30_000;975976  window.addEventListener("message", (event: MessageEvent) => {977    if (event.source !== window) return;978    const data = event.data as { source?: string; type?: string; rpId?: string; rpName?: string; userName?: string; userDisplayName?: string } | undefined;979    if (!data || data.source !== "peach-passkey-firefox") return;980    if (detectBrowser() !== "firefox") return;981    if (data.type !== "create") return;982983    // Cooldown: a single page interaction can fire multiple credentials.create984    // calls. Show the offer at most once per 30 seconds per page session.985    const now = Date.now();986    if (now - lastPasskeyOfferAt < PASSKEY_OFFER_COOLDOWN_MS) return;987    lastPasskeyOfferAt = now;988989    const domain = location.hostname.replace(/^www\./, "");990    chrome.runtime.sendMessage({991      type: "GET_PASSKEY_OFFER_DECLINED",992      payload: { domain },993    }).then((res: { ok: boolean; data?: boolean } | undefined) => {994      if (res?.data === true) return;995      const rpId = data.rpId ?? domain;996      showPasskeyRegistrationOffer({997        rpId,998        rpName: data.rpName,999        userName: data.userName,1000        userDisplayName: data.userDisplayName,1001      });1002    }).catch(() => {});1003  });1004}10051006// Surface State 11 (passkey-available) only when it adds value:1007//   - Cross-browser entry: Chrome passkey on Firefox or vice versa — neither1008//     browser will auto-route, so the banner explains the re-register need.1009//   - Firefox + same-browser entry: Firefox has no equivalent of1010//     webAuthenticationProxy, so without a banner the user has no signal that1011//     Peach is the source.1012// On Chrome with a same-browser entry: skip — webAuthenticationProxy handles1013// the page's own credentials.get transparently and the popup approval view1014// already surfaces it. A banner here would just be noise.1015//1016// Dedupe across navigation: each navigation re-injects this content script.1017// chrome.storage.session keyed by domain is the natural per-tab/per-session1018// memory; session storage clears when the user closes the browser.1019{1020  function checkPasskeyAvailability() {1021    const domain = location.hostname.replace(/^www\./, "");1022    if (!domain) return;1023    const sessionKey = `peach_state11_shown:${domain}`;1024    chrome.storage.session?.get(sessionKey).then((stored) => {1025      if (stored && (stored as Record<string, unknown>)[sessionKey]) return;1026      chrome.runtime.sendMessage({1027        type: "GET_PASSKEY_FOR_DOMAIN",1028        payload: { domain },1029      }).then((res: { ok: boolean; data?: { rpId: string; userName: string; browser?: "chrome" | "firefox" } | null } | undefined) => {1030        const data = res?.data;1031        if (!data) return;1032        const current = detectBrowser();1033        const isCrossBrowser =1034          data.browser && current !== "unknown" && data.browser !== current;1035        const valuableOnFirefox = current === "firefox";1036        if (!isCrossBrowser && !valuableOnFirefox) return;1037        chrome.storage.session?.set({ [sessionKey]: Date.now() }).catch(() => {});1038        showPasskeyAvailable({1039          rpId: data.rpId,1040          userName: data.userName,1041          fromBrowser: data.browser,1042          currentBrowser: current,1043        });1044      }).catch(() => {});1045    }).catch(() => {});1046  }10471048  // Defer until DOM is interactive — content_scripts run at document_idle but1049  // some pages still mutate visibly afterwards. A short delay also avoids1050  // surfacing the State 11 toast while the user is in the middle of typing.1051  if (document.readyState === "loading") {1052    document.addEventListener("DOMContentLoaded", () => setTimeout(checkPasskeyAvailability, 800));1053  } else {1054    setTimeout(checkPasskeyAvailability, 800);1055  }1056}