642 lines
22 KiB
JavaScript
642 lines
22 KiB
JavaScript
/**
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* extension/content/content.js — PassKeeper content script.
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*
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* 1. Detects login forms → notifies background (badge count).
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* 2. Injects a PassKeeper icon button into username AND password fields.
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* Focusing either field (or clicking the icon) shows a suggestion dropdown
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* anchored below the field, matching the browser-native autofill style.
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* 3. Listens for DO_AUTOFILL from the popup → fills fields.
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* 4. Watches form submissions → shows save-credentials banner.
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*/
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(() => {
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"use strict";
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const PK_ATTR = "data-pk-decorated";
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const PK_BTN_CLASS = "__pk_autofill_btn__";
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const PK_DROPDOWN_ID = "__pk_dropdown__";
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let _bannerEl = null;
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let _hasNotifiedForm = false;
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let _formObserver = null;
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let _matchingItems = []; // cached matching vault items for the current page
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// ── Helpers ──────────────────────────────────────────────────────────────────
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function escHtml(str) {
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return String(str ?? "")
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.replace(/&/g, "&")
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.replace(/</g, "<")
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.replace(/>/g, ">");
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}
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function visiblePasswordFields() {
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return Array.from(
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document.querySelectorAll('input[type="password"]'),
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).filter((el) => el.offsetParent !== null && !el.disabled);
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}
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function findUsernameField(pwField) {
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const all = Array.from(document.querySelectorAll("input"));
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const idx = all.indexOf(pwField);
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for (let i = idx - 1; i >= 0; i--) {
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const el = all[i];
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if (!el.offsetParent || el.disabled) continue;
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if (["email", "text", "tel"].includes(el.type)) return el;
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}
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return null;
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}
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// ── Framework-compatible fill ─────────────────────────────────────────────────
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function fillField(el, value) {
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const setter = Object.getOwnPropertyDescriptor(
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HTMLInputElement.prototype,
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"value",
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)?.set;
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if (setter) setter.call(el, value);
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else el.value = value;
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el.dispatchEvent(new Event("input", { bubbles: true }));
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el.dispatchEvent(new Event("change", { bubbles: true }));
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}
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function doAutofill(username, password) {
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const pwFields = visiblePasswordFields();
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if (!pwFields.length) return;
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const pwField = pwFields[0];
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const usernameField = findUsernameField(pwField);
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if (usernameField && username) fillField(usernameField, username);
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if (password) fillField(pwField, password);
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[usernameField, pwField].filter(Boolean).forEach((el) => {
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el.style.outline = "2px solid #1a73e8";
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setTimeout(() => {
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el.style.outline = "";
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}, 1500);
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});
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}
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// ── Suggestion dropdown ───────────────────────────────────────────────────────
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function removeDropdown() {
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const existing = document.getElementById(PK_DROPDOWN_ID);
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if (existing) existing.remove();
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}
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/**
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* Build and show the suggestion dropdown anchored directly below anchorField.
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*
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* @param {HTMLInputElement} anchorField - field the dropdown is anchored to
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* @param {HTMLInputElement} pwField - associated password field to fill
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* @param {object[]} items - matching vault items for this site
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* @param {string} filterText - current field value used to filter
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*/
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function showDropdown(anchorField, pwField, items, filterText) {
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removeDropdown();
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// Filter by what the user has already typed.
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const q = (filterText || "").trim().toLowerCase();
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const filtered = q
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? items.filter(function (item) {
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return (
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((item.plain && item.plain.username) || "")
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.toLowerCase()
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.includes(q) || item.name.toLowerCase().includes(q)
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);
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})
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: items;
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// Don't show an empty dropdown while the user is actively typing and nothing matches.
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if (!filtered.length && q) return;
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const dropdown = document.createElement("div");
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dropdown.id = PK_DROPDOWN_ID;
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// Anchor below the field, same left edge, at least 260 px wide.
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const rect = anchorField.getBoundingClientRect();
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const dropWidth = Math.max(260, rect.width);
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Object.assign(dropdown.style, {
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position: "fixed",
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top: rect.bottom + 2 + "px",
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left: rect.left + "px",
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width: dropWidth + "px",
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background: "#fff",
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border: "1px solid #dadce0",
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borderRadius: "8px",
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boxShadow: "0 4px 20px rgba(0,0,0,0.18)",
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zIndex: "2147483647",
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fontFamily:
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"-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif",
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fontSize: "13px",
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overflow: "hidden",
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});
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// The username field to fill.
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const usernameField =
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anchorField.type === "password"
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? findUsernameField(anchorField)
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: anchorField;
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if (filtered.length === 0) {
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// No items at all for this site.
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const empty = document.createElement("div");
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Object.assign(empty.style, {
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padding: "12px 14px",
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color: "#5f6368",
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fontSize: "12px",
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});
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empty.textContent = "No saved passwords for this site.";
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dropdown.appendChild(empty);
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} else {
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filtered.forEach(function (item) {
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const row = document.createElement("div");
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Object.assign(row.style, {
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display: "flex",
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alignItems: "center",
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gap: "10px",
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padding: "9px 12px",
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cursor: "pointer",
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transition: "background 0.1s",
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});
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row.onmouseenter = function () {
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row.style.background = "#f1f3f4";
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};
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row.onmouseleave = function () {
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row.style.background = "";
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};
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// Derive display hostname from stored URL.
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var siteHost = item.name;
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if (item.plain && item.plain.url) {
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try {
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siteHost = new URL(item.plain.url).hostname.replace(/^www\./, "");
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} catch (e) {}
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}
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var username = escHtml((item.plain && item.plain.username) || "");
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var site = escHtml(siteHost);
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// Lock icon avatar.
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var avatar = document.createElement("div");
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Object.assign(avatar.style, {
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width: "32px",
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height: "32px",
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borderRadius: "50%",
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background: "#e8eaed",
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display: "flex",
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alignItems: "center",
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justifyContent: "center",
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flexShrink: "0",
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});
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avatar.innerHTML =
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'<svg width="16" height="16" viewBox="0 0 24 24" fill="none">' +
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'<rect x="3" y="10" width="18" height="12" rx="2" fill="#5f6368"/>' +
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'<path d="M8 10V7a4 4 0 018 0v3" stroke="#5f6368" stroke-width="2" stroke-linecap="round" fill="none"/>' +
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"</svg>";
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// Text block: site name + username.
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var text = document.createElement("div");
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text.style.cssText = "flex:1;min-width:0;";
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text.innerHTML =
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'<div style="font-size:12px;color:#202124;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;">' +
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site +
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"</div>" +
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(username
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? '<div style="font-size:11px;color:#5f6368;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;">' +
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username +
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"</div>"
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: "");
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// Edit (pencil) icon.
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var editBtn = document.createElement("button");
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Object.assign(editBtn.style, {
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background: "none",
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border: "none",
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cursor: "pointer",
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padding: "4px",
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color: "#1a73e8",
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display: "flex",
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alignItems: "center",
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flexShrink: "0",
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borderRadius: "4px",
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});
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editBtn.title = "Edit in PassKeeper";
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editBtn.innerHTML =
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'<svg width="15" height="15" viewBox="0 0 24 24" fill="none">' +
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'<path d="M11 4H4a2 2 0 00-2 2v14a2 2 0 002 2h14a2 2 0 002-2v-7" stroke="#1a73e8" stroke-width="2" stroke-linecap="round"/>' +
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'<path d="M18.5 2.5a2.121 2.121 0 013 3L12 15l-4 1 1-4 9.5-9.5z" stroke="#1a73e8" stroke-width="2" stroke-linejoin="round"/>' +
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"</svg>";
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editBtn.addEventListener("mousedown", function (e) {
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e.preventDefault();
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e.stopPropagation();
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chrome.runtime
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.sendMessage({ type: "OPEN_VAULT" })
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.catch(function () {});
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removeDropdown();
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});
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row.appendChild(avatar);
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row.appendChild(text);
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row.appendChild(editBtn);
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// Clicking the row fills both fields.
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row.addEventListener("mousedown", function (e) {
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if (e.target === editBtn || editBtn.contains(e.target)) return;
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e.preventDefault();
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if (usernameField && item.plain && item.plain.username)
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fillField(usernameField, item.plain.username);
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if (pwField && item.plain && item.plain.password)
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fillField(pwField, item.plain.password);
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removeDropdown();
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if (pwField && anchorField !== pwField) {
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setTimeout(function () {
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pwField.focus();
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}, 0);
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}
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});
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dropdown.appendChild(row);
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});
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// "More options…" footer row.
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var divider = document.createElement("div");
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divider.style.cssText = "height:1px;background:#e8eaed;margin:0 12px;";
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dropdown.appendChild(divider);
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var more = document.createElement("div");
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Object.assign(more.style, {
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display: "flex",
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alignItems: "center",
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gap: "8px",
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padding: "9px 12px",
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cursor: "pointer",
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color: "#1a73e8",
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fontSize: "12px",
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fontWeight: "500",
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transition: "background 0.1s",
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});
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more.onmouseenter = function () {
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more.style.background = "#f1f3f4";
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};
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more.onmouseleave = function () {
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more.style.background = "";
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};
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more.innerHTML =
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'<svg width="14" height="14" viewBox="0 0 24 24" fill="none">' +
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'<circle cx="5" cy="12" r="1.5" fill="#1a73e8"/>' +
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'<circle cx="12" cy="12" r="1.5" fill="#1a73e8"/>' +
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'<circle cx="19" cy="12" r="1.5" fill="#1a73e8"/>' +
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"</svg> More options\u2026";
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more.addEventListener("mousedown", function (e) {
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e.preventDefault();
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chrome.runtime
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.sendMessage({ type: "OPEN_VAULT" })
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.catch(function () {});
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removeDropdown();
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});
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dropdown.appendChild(more);
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}
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document.body.appendChild(dropdown);
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// Close on outside mousedown or Escape key.
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function onOutside(e) {
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if (!dropdown.contains(e.target) && e.target !== anchorField) {
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removeDropdown();
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document.removeEventListener("mousedown", onOutside, true);
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document.removeEventListener("keydown", onEscape, true);
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}
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}
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function onEscape(e) {
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if (e.key === "Escape") {
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removeDropdown();
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document.removeEventListener("mousedown", onOutside, true);
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document.removeEventListener("keydown", onEscape, true);
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}
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}
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setTimeout(function () {
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document.addEventListener("mousedown", onOutside, true);
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document.addEventListener("keydown", onEscape, true);
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}, 0);
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}
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// ── Field decoration ──────────────────────────────────────────────────────────
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/**
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* Inject the PassKeeper icon button into a field and wire focus/input events.
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*
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* @param {HTMLInputElement} field - field to decorate (username OR password)
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* @param {HTMLInputElement} pwField - associated password field
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* @param {object[]} items - matching vault items for this site
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*/
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function decorateField(field, pwField, items) {
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if (field.getAttribute(PK_ATTR)) return; // already decorated
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field.setAttribute(PK_ATTR, "1");
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// Wrap the field so the icon button can be positioned absolutely inside it.
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var wrap = document.createElement("div");
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wrap.style.cssText = "position:relative;display:inline-block;width:100%;";
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field.parentNode.insertBefore(wrap, field);
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wrap.appendChild(field);
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// Prevent typed text from sliding under the icon.
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field.style.paddingRight = "34px";
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// PassKeeper icon button inside the right edge of the field.
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var btn = document.createElement("button");
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btn.type = "button";
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btn.className = PK_BTN_CLASS;
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btn.title = "Autofill with PassKeeper";
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btn.setAttribute("aria-label", "Autofill with PassKeeper");
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btn.style.cssText = [
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"position:absolute",
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"right:6px",
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"top:50%",
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"transform:translateY(-50%)",
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"background:none",
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"border:none",
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"cursor:pointer",
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"padding:3px",
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"display:flex",
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"align-items:center",
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"justify-content:center",
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"z-index:2147483646",
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].join(";");
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btn.innerHTML =
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'<svg width="18" height="18" viewBox="0 0 24 24" fill="none">' +
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'<rect x="3" y="9" width="18" height="12" rx="2" stroke="#c0392b" stroke-width="1.8"/>' +
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'<path d="M8 9V6a4 4 0 018 0v3" stroke="#c0392b" stroke-width="1.8" stroke-linecap="round"/>' +
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'<circle cx="12" cy="15" r="1.5" fill="#c0392b"/>' +
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"</svg>";
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wrap.appendChild(btn);
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// Show dropdown when the field gains focus.
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field.addEventListener("focus", function () {
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showDropdown(field, pwField, items, field.value);
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});
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// Re-filter as user types.
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field.addEventListener("input", function () {
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showDropdown(field, pwField, items, field.value);
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});
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// Icon button toggles the dropdown.
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btn.addEventListener("mousedown", function (e) {
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e.preventDefault();
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e.stopPropagation();
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var existing = document.getElementById(PK_DROPDOWN_ID);
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if (existing) {
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removeDropdown();
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} else {
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showDropdown(field, pwField, items, field.value);
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}
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});
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}
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async function decorateFields() {
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// Get cached vault items from session storage.
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var result;
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try {
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result = await chrome.storage.session.get("vault_items");
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} catch (e) {
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return;
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}
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var vault_items = result && result.vault_items;
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if (!vault_items || !vault_items.length) return;
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var host = location.hostname.replace(/^www\./, "");
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_matchingItems = vault_items.filter(function (item) {
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if (item.item_type !== "password" || !(item.plain && item.plain.url))
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return false;
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try {
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var h = new URL(item.plain.url).hostname.replace(/^www\./, "");
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return h === host || h.endsWith("." + host) || host.endsWith("." + h);
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} catch (e) {
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return false;
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}
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});
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// Decorate every visible password field and its paired username field.
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visiblePasswordFields().forEach(function (pwField) {
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var usernameField = findUsernameField(pwField);
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if (usernameField) decorateField(usernameField, pwField, _matchingItems);
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decorateField(pwField, pwField, _matchingItems);
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});
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}
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// ── Form detection ────────────────────────────────────────────────────────────
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function notifyFormDetected() {
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if (_hasNotifiedForm) return;
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if (!visiblePasswordFields().length) return;
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_hasNotifiedForm = true;
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chrome.runtime
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.sendMessage({ type: "FORMS_DETECTED" })
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.catch(function () {});
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}
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// ── Duplicate detection ───────────────────────────────────────────────────────
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async function classifyCredentials(username, password) {
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var result;
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try {
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result = await chrome.storage.session.get("vault_items");
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} catch (e) {
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return "new";
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}
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var vault_items = result && result.vault_items;
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if (!vault_items || !vault_items.length) return "new";
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var host = location.hostname.replace(/^www\./, "");
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var siteItems = vault_items.filter(function (item) {
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if (item.item_type !== "password" || !(item.plain && item.plain.url))
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return false;
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try {
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var h = new URL(item.plain.url).hostname.replace(/^www\./, "");
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return h === host || h.endsWith("." + host) || host.endsWith("." + h);
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} catch (e) {
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return false;
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}
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});
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if (!siteItems.length) return "new";
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var exactMatch = siteItems.some(function (item) {
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return (
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item.plain &&
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item.plain.username === username &&
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item.plain.password === password
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);
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});
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return exactMatch ? "same" : "updated";
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}
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// ── Auto-save banner ──────────────────────────────────────────────────────────
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function showSaveBanner(username, password, credentialState) {
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if (_bannerEl) _bannerEl.remove();
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var banner = document.createElement("div");
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banner.id = "__pk_save_banner__";
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Object.assign(banner.style, {
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position: "fixed",
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top: "12px",
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right: "12px",
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zIndex: "2147483647",
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background: "#ffffff",
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border: "1px solid #e2e8f0",
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borderRadius: "10px",
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boxShadow: "0 8px 30px rgba(0,0,0,0.15)",
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padding: "14px 16px 12px",
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fontFamily:
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"-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif",
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fontSize: "13px",
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color: "#1a1a2e",
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maxWidth: "300px",
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minWidth: "240px",
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});
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var site = escHtml(location.hostname);
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|
var user = escHtml(username);
|
|
var title =
|
|
credentialState === "updated"
|
|
? "Update in PassKeeper?"
|
|
: "Save to PassKeeper?";
|
|
|
|
banner.innerHTML =
|
|
'<div style="display:flex;align-items:center;gap:8px;margin-bottom:10px;">' +
|
|
'<svg width="18" height="18" viewBox="0 0 24 24" fill="none"><rect x="3" y="9" width="18" height="12" rx="2" stroke="#1a73e8" stroke-width="1.8"/><path d="M8 9V6a4 4 0 018 0v3" stroke="#1a73e8" stroke-width="1.8" stroke-linecap="round"/></svg>' +
|
|
'<strong style="flex:1;font-size:13px;color:#111827;">' +
|
|
escHtml(title) +
|
|
"</strong>" +
|
|
'<button id="__pk_close__" style="background:none;border:none;cursor:pointer;font-size:18px;color:#9ca3af;line-height:1;padding:0;">\xd7</button>' +
|
|
"</div>" +
|
|
'<p style="color:#6b7280;font-size:12px;margin-bottom:10px;">' +
|
|
'<strong style="color:#111827;">' +
|
|
user +
|
|
'</strong> on <strong style="color:#111827;">' +
|
|
site +
|
|
"</strong>" +
|
|
"</p>" +
|
|
'<div style="display:flex;gap:8px;">' +
|
|
'<button id="__pk_save__" style="flex:1;padding:7px 0;background:#1a1a2e;color:#fff;border:none;border-radius:6px;cursor:pointer;font-size:12px;font-weight:600;">Save</button>' +
|
|
'<button id="__pk_skip__" style="flex:1;padding:7px 0;background:transparent;color:#374151;border:1px solid #d1d5db;border-radius:6px;cursor:pointer;font-size:12px;">Not now</button>' +
|
|
"</div>";
|
|
|
|
document.body.appendChild(banner);
|
|
_bannerEl = banner;
|
|
|
|
var dismiss = function () {
|
|
if (_bannerEl === banner) {
|
|
banner.remove();
|
|
_bannerEl = null;
|
|
}
|
|
};
|
|
banner.querySelector("#__pk_close__").addEventListener("click", dismiss);
|
|
banner.querySelector("#__pk_skip__").addEventListener("click", dismiss);
|
|
banner.querySelector("#__pk_save__").addEventListener("click", function () {
|
|
console.log(
|
|
"[PassKeeper] User chose to save credentials for",
|
|
location.hostname,
|
|
);
|
|
chrome.runtime
|
|
.sendMessage({
|
|
type: "SAVE_CREDENTIALS",
|
|
data: {
|
|
url: location.href,
|
|
siteName: document.title || location.hostname,
|
|
username: username,
|
|
password: password,
|
|
},
|
|
})
|
|
.catch(function () {});
|
|
dismiss();
|
|
});
|
|
}
|
|
|
|
// ── Form submission watch ─────────────────────────────────────────────────────
|
|
|
|
function watchSubmissions() {
|
|
document.addEventListener(
|
|
"submit",
|
|
async function (e) {
|
|
var form = e.target;
|
|
var pwField = form.querySelector(
|
|
'input[type="password"]:not([disabled])',
|
|
);
|
|
if (!pwField || !pwField.value) return;
|
|
|
|
var userField =
|
|
findUsernameField(pwField) ||
|
|
form.querySelector('input[type="email"]:not([disabled])') ||
|
|
form.querySelector('input[type="text"]:not([disabled])');
|
|
|
|
var username =
|
|
(userField && userField.value && userField.value.trim()) || "";
|
|
var password = pwField.value;
|
|
|
|
if (!username || !password) return;
|
|
|
|
removeDropdown();
|
|
|
|
var credentialState = await classifyCredentials(username, password);
|
|
console.log(
|
|
"[PassKeeper] Credential state for",
|
|
location.hostname,
|
|
"\u2192",
|
|
credentialState,
|
|
);
|
|
|
|
if (credentialState === "same") return;
|
|
|
|
setTimeout(function () {
|
|
showSaveBanner(username, password, credentialState);
|
|
}, 500);
|
|
},
|
|
true,
|
|
);
|
|
}
|
|
|
|
// ── Message listener ──────────────────────────────────────────────────────────
|
|
|
|
chrome.runtime.onMessage.addListener(function (msg, _sender, sendResponse) {
|
|
if (msg.type === "DO_AUTOFILL") {
|
|
doAutofill(msg.username, msg.password);
|
|
sendResponse({ ok: true });
|
|
}
|
|
if (msg.type === "VAULT_UPDATED") {
|
|
document.querySelectorAll("[" + PK_ATTR + "]").forEach(function (el) {
|
|
el.removeAttribute(PK_ATTR);
|
|
});
|
|
document.querySelectorAll("." + PK_BTN_CLASS).forEach(function (el) {
|
|
el.remove();
|
|
});
|
|
removeDropdown();
|
|
decorateFields();
|
|
}
|
|
return false;
|
|
});
|
|
|
|
// ── Init ──────────────────────────────────────────────────────────────────────
|
|
|
|
function init() {
|
|
notifyFormDetected();
|
|
decorateFields();
|
|
watchSubmissions();
|
|
|
|
_formObserver = new MutationObserver(function () {
|
|
_hasNotifiedForm = false;
|
|
notifyFormDetected();
|
|
decorateFields();
|
|
});
|
|
_formObserver.observe(document.body, { childList: true, subtree: true });
|
|
}
|
|
|
|
if (document.readyState === "loading") {
|
|
document.addEventListener("DOMContentLoaded", init);
|
|
} else {
|
|
init();
|
|
}
|
|
})();
|