зеркало из https://github.com/mozilla/gecko-dev.git
1281 строка
38 KiB
JavaScript
1281 строка
38 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/*
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* Form Autofill field heuristics.
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*/
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"use strict";
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var EXPORTED_SYMBOLS = ["FormAutofillHeuristics", "LabelUtils"];
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const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
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const { XPCOMUtils } = ChromeUtils.import(
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"resource://gre/modules/XPCOMUtils.jsm"
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);
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const { FormAutofill } = ChromeUtils.import(
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"resource://formautofill/FormAutofill.jsm"
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);
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ChromeUtils.defineModuleGetter(
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this,
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"FormAutofillUtils",
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"resource://formautofill/FormAutofillUtils.jsm"
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);
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XPCOMUtils.defineLazyModuleGetters(this, {
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CreditCard: "resource://gre/modules/CreditCard.jsm",
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});
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this.log = null;
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FormAutofill.defineLazyLogGetter(this, EXPORTED_SYMBOLS[0]);
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const PREF_HEURISTICS_ENABLED = "extensions.formautofill.heuristics.enabled";
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const PREF_SECTION_ENABLED = "extensions.formautofill.section.enabled";
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const DEFAULT_SECTION_NAME = "-moz-section-default";
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/**
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* To help us classify sections, we want to know what fields can appear
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* multiple times in a row.
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* Such fields, like `address-line{X}`, should not break sections.
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*/
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const MULTI_FIELD_NAMES = [
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"address-level3",
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"address-level2",
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"address-level1",
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"tel",
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"postal-code",
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"email",
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"street-address",
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];
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/**
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* A scanner for traversing all elements in a form and retrieving the field
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* detail with FormAutofillHeuristics.getInfo function. It also provides a
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* cursor (parsingIndex) to indicate which element is waiting for parsing.
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*/
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class FieldScanner {
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/**
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* Create a FieldScanner based on form elements with the existing
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* fieldDetails.
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*
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* @param {Array.DOMElement} elements
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* The elements from a form for each parser.
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*/
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constructor(elements, { allowDuplicates = false, sectionEnabled = true }) {
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this._elementsWeakRef = Cu.getWeakReference(elements);
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this.fieldDetails = [];
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this._parsingIndex = 0;
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this._sections = [];
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this._allowDuplicates = allowDuplicates;
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this._sectionEnabled = sectionEnabled;
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}
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get _elements() {
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return this._elementsWeakRef.get();
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}
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/**
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* This cursor means the index of the element which is waiting for parsing.
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*
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* @returns {number}
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* The index of the element which is waiting for parsing.
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*/
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get parsingIndex() {
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return this._parsingIndex;
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}
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/**
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* Move the parsingIndex to the next elements. Any elements behind this index
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* means the parsing tasks are finished.
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*
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* @param {number} index
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* The latest index of elements waiting for parsing.
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*/
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set parsingIndex(index) {
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if (index > this._elements.length) {
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throw new Error("The parsing index is out of range.");
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}
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this._parsingIndex = index;
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}
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/**
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* Retrieve the field detail by the index. If the field detail is not ready,
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* the elements will be traversed until matching the index.
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*
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* @param {number} index
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* The index of the element that you want to retrieve.
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* @returns {Object}
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* The field detail at the specific index.
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*/
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getFieldDetailByIndex(index) {
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if (index >= this._elements.length) {
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throw new Error(
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`The index ${index} is out of range.(${this._elements.length})`
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);
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}
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if (index < this.fieldDetails.length) {
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return this.fieldDetails[index];
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}
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for (let i = this.fieldDetails.length; i < index + 1; i++) {
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this.pushDetail();
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}
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return this.fieldDetails[index];
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}
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get parsingFinished() {
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return this.parsingIndex >= this._elements.length;
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}
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_pushToSection(name, fieldDetail) {
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for (let section of this._sections) {
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if (section.name == name) {
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section.fieldDetails.push(fieldDetail);
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return;
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}
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}
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this._sections.push({
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name,
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fieldDetails: [fieldDetail],
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});
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}
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_classifySections() {
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let fieldDetails = this._sections[0].fieldDetails;
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this._sections = [];
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let seenTypes = new Set();
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let previousType;
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let sectionCount = 0;
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for (let fieldDetail of fieldDetails) {
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if (!fieldDetail.fieldName) {
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continue;
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}
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if (
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seenTypes.has(fieldDetail.fieldName) &&
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(previousType != fieldDetail.fieldName ||
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!MULTI_FIELD_NAMES.includes(fieldDetail.fieldName))
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) {
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seenTypes.clear();
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sectionCount++;
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}
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previousType = fieldDetail.fieldName;
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seenTypes.add(fieldDetail.fieldName);
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this._pushToSection(
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DEFAULT_SECTION_NAME + "-" + sectionCount,
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fieldDetail
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);
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}
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}
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/**
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* The result is an array contains the sections with its belonging field
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* details. If `this._sections` contains one section only with the default
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* section name (DEFAULT_SECTION_NAME), `this._classifySections` should be
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* able to identify all sections in the heuristic way.
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*
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* @returns {Array<Object>}
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* The array with the sections, and the belonging fieldDetails are in
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* each section.
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*/
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getSectionFieldDetails() {
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// When the section feature is disabled, `getSectionFieldDetails` should
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// provide a single address and credit card section result.
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if (!this._sectionEnabled) {
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return this._getFinalDetails(this.fieldDetails);
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}
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if (!this._sections.length) {
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return [];
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}
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if (
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this._sections.length == 1 &&
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this._sections[0].name == DEFAULT_SECTION_NAME
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) {
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this._classifySections();
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}
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return this._sections.reduce((sections, current) => {
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sections.push(...this._getFinalDetails(current.fieldDetails));
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return sections;
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}, []);
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}
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/**
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* This function will prepare an autocomplete info object with getInfo
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* function and push the detail to fieldDetails property.
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* Any field will be pushed into `this._sections` based on the section name
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* in `autocomplete` attribute.
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*
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* Any element without the related detail will be used for adding the detail
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* to the end of field details.
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*/
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pushDetail() {
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let elementIndex = this.fieldDetails.length;
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if (elementIndex >= this._elements.length) {
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throw new Error("Try to push the non-existing element info.");
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}
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let element = this._elements[elementIndex];
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let info = FormAutofillHeuristics.getInfo(element);
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let fieldInfo = {
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section: info ? info.section : "",
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addressType: info ? info.addressType : "",
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contactType: info ? info.contactType : "",
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fieldName: info ? info.fieldName : "",
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elementWeakRef: Cu.getWeakReference(element),
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};
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if (info && info._reason) {
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fieldInfo._reason = info._reason;
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}
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this.fieldDetails.push(fieldInfo);
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this._pushToSection(this._getSectionName(fieldInfo), fieldInfo);
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}
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_getSectionName(info) {
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let names = [];
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if (info.section) {
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names.push(info.section);
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}
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if (info.addressType) {
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names.push(info.addressType);
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}
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return names.length ? names.join(" ") : DEFAULT_SECTION_NAME;
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}
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/**
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* When a field detail should be changed its fieldName after parsing, use
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* this function to update the fieldName which is at a specific index.
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*
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* @param {number} index
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* The index indicates a field detail to be updated.
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* @param {string} fieldName
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* The new fieldName
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*/
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updateFieldName(index, fieldName) {
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if (index >= this.fieldDetails.length) {
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throw new Error("Try to update the non-existing field detail.");
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}
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this.fieldDetails[index].fieldName = fieldName;
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}
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_isSameField(field1, field2) {
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return (
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field1.section == field2.section &&
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field1.addressType == field2.addressType &&
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field1.fieldName == field2.fieldName
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);
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}
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/**
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* Provide the final field details without invalid field name, and the
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* duplicated fields will be removed as well. For the debugging purpose,
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* the final `fieldDetails` will include the duplicated fields if
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* `_allowDuplicates` is true.
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*
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* Each item should contain one type of fields only, and the two valid types
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* are Address and CreditCard.
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*
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* @param {Array<Object>} fieldDetails
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* The field details for trimming.
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* @returns {Array<Object>}
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* The array with the field details without invalid field name and
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* duplicated fields.
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*/
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_getFinalDetails(fieldDetails) {
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let addressFieldDetails = [];
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let creditCardFieldDetails = [];
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for (let fieldDetail of fieldDetails) {
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let fieldName = fieldDetail.fieldName;
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if (FormAutofillUtils.isAddressField(fieldName)) {
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addressFieldDetails.push(fieldDetail);
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} else if (FormAutofillUtils.isCreditCardField(fieldName)) {
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creditCardFieldDetails.push(fieldDetail);
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} else {
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log.debug(
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"Not collecting a field with a unknown fieldName",
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fieldDetail
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);
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}
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}
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return [
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{
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type: FormAutofillUtils.SECTION_TYPES.ADDRESS,
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fieldDetails: addressFieldDetails,
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},
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{
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type: FormAutofillUtils.SECTION_TYPES.CREDIT_CARD,
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fieldDetails: creditCardFieldDetails,
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},
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]
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.map(section => {
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if (this._allowDuplicates) {
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return section;
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}
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// Deduplicate each set of fieldDetails
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let details = section.fieldDetails;
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section.fieldDetails = details.filter((detail, index) => {
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let previousFields = details.slice(0, index);
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return !previousFields.find(f => this._isSameField(detail, f));
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});
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return section;
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})
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.filter(section => !!section.fieldDetails.length);
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}
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elementExisting(index) {
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return index < this._elements.length;
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}
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}
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var LabelUtils = {
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// The tag name list is from Chromium except for "STYLE":
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// eslint-disable-next-line max-len
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// https://cs.chromium.org/chromium/src/components/autofill/content/renderer/form_autofill_util.cc?l=216&rcl=d33a171b7c308a64dc3372fac3da2179c63b419e
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EXCLUDED_TAGS: ["SCRIPT", "NOSCRIPT", "OPTION", "STYLE"],
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// A map object, whose keys are the id's of form fields and each value is an
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// array consisting of label elements correponding to the id.
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// @type {Map<string, array>}
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_mappedLabels: null,
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// An array consisting of label elements whose correponding form field doesn't
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// have an id attribute.
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// @type {Array<HTMLLabelElement>}
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_unmappedLabels: null,
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// A weak map consisting of label element and extracted strings pairs.
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// @type {WeakMap<HTMLLabelElement, array>}
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_labelStrings: null,
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/**
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* Extract all strings of an element's children to an array.
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* "element.textContent" is a string which is merged of all children nodes,
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* and this function provides an array of the strings contains in an element.
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*
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* @param {Object} element
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* A DOM element to be extracted.
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* @returns {Array}
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* All strings in an element.
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*/
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extractLabelStrings(element) {
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if (this._labelStrings.has(element)) {
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return this._labelStrings.get(element);
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}
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let strings = [];
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let _extractLabelStrings = el => {
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if (this.EXCLUDED_TAGS.includes(el.tagName)) {
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return;
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}
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if (el.nodeType == el.TEXT_NODE || !el.childNodes.length) {
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let trimmedText = el.textContent.trim();
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if (trimmedText) {
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strings.push(trimmedText);
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}
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return;
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}
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for (let node of el.childNodes) {
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let nodeType = node.nodeType;
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if (nodeType != node.ELEMENT_NODE && nodeType != node.TEXT_NODE) {
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continue;
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}
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_extractLabelStrings(node);
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}
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};
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_extractLabelStrings(element);
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this._labelStrings.set(element, strings);
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return strings;
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},
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generateLabelMap(doc) {
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let mappedLabels = new Map();
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let unmappedLabels = [];
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for (let label of doc.querySelectorAll("label")) {
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let id = label.htmlFor;
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if (!id) {
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let control = label.control;
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if (!control) {
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continue;
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}
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id = control.id;
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}
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if (id) {
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let labels = mappedLabels.get(id);
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if (labels) {
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labels.push(label);
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} else {
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mappedLabels.set(id, [label]);
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}
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} else {
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unmappedLabels.push(label);
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}
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}
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this._mappedLabels = mappedLabels;
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this._unmappedLabels = unmappedLabels;
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this._labelStrings = new WeakMap();
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},
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clearLabelMap() {
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this._mappedLabels = null;
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this._unmappedLabels = null;
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this._labelStrings = null;
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},
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findLabelElements(element) {
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if (!this._mappedLabels) {
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this.generateLabelMap(element.ownerDocument);
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}
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let id = element.id;
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if (!id) {
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return this._unmappedLabels.filter(label => label.control == element);
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}
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return this._mappedLabels.get(id) || [];
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},
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};
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/**
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* Returns the autocomplete information of fields according to heuristics.
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*/
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this.FormAutofillHeuristics = {
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RULES: null,
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/**
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* Try to find a contiguous sub-array within an array.
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*
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* @param {Array} array
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* @param {Array} subArray
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*
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* @returns {boolean}
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* Return whether subArray was found within the array or not.
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*/
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_matchContiguousSubArray(array, subArray) {
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return array.some((elm, i) =>
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subArray.every((sElem, j) => sElem == array[i + j])
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);
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},
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/**
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* Try to find the field that is look like a month select.
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*
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* @param {DOMElement} element
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* @returns {boolean}
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* Return true if we observe the trait of month select in
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* the current element.
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*/
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_isExpirationMonthLikely(element) {
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if (ChromeUtils.getClassName(element) !== "HTMLSelectElement") {
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return false;
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}
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const options = [...element.options];
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const desiredValues = Array(12)
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.fill(1)
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.map((v, i) => v + i);
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// The number of month options shouldn't be less than 12 or larger than 13
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// including the default option.
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if (options.length < 12 || options.length > 13) {
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return false;
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}
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return (
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this._matchContiguousSubArray(
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options.map(e => +e.value),
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desiredValues
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) ||
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this._matchContiguousSubArray(
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options.map(e => +e.label),
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desiredValues
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)
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);
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},
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/**
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* Try to find the field that is look like a year select.
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*
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* @param {DOMElement} element
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* @returns {boolean}
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* Return true if we observe the trait of year select in
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* the current element.
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*/
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_isExpirationYearLikely(element) {
|
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if (ChromeUtils.getClassName(element) !== "HTMLSelectElement") {
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return false;
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}
|
|
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const options = [...element.options];
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// A normal expiration year select should contain at least the last three years
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// in the list.
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const curYear = new Date().getFullYear();
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const desiredValues = Array(3)
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.fill(0)
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.map((v, i) => v + curYear + i);
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return (
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this._matchContiguousSubArray(
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options.map(e => +e.value),
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desiredValues
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) ||
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this._matchContiguousSubArray(
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options.map(e => +e.label),
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desiredValues
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)
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);
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},
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/**
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* Try to match the telephone related fields to the grammar
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* list to see if there is any valid telephone set and correct their
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* field names.
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*
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* @param {FieldScanner} fieldScanner
|
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* The current parsing status for all elements
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* @returns {boolean}
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* Return true if there is any field can be recognized in the parser,
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* otherwise false.
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*/
|
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_parsePhoneFields(fieldScanner) {
|
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let matchingResult;
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const GRAMMARS = this.PHONE_FIELD_GRAMMARS;
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for (let i = 0; i < GRAMMARS.length; i++) {
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let detailStart = fieldScanner.parsingIndex;
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let ruleStart = i;
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for (
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;
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i < GRAMMARS.length &&
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GRAMMARS[i][0] &&
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fieldScanner.elementExisting(detailStart);
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i++, detailStart++
|
|
) {
|
|
let detail = fieldScanner.getFieldDetailByIndex(detailStart);
|
|
if (
|
|
!detail ||
|
|
GRAMMARS[i][0] != detail.fieldName ||
|
|
(detail._reason && detail._reason == "autocomplete")
|
|
) {
|
|
break;
|
|
}
|
|
let element = detail.elementWeakRef.get();
|
|
if (!element) {
|
|
break;
|
|
}
|
|
if (
|
|
GRAMMARS[i][2] &&
|
|
(!element.maxLength || GRAMMARS[i][2] < element.maxLength)
|
|
) {
|
|
break;
|
|
}
|
|
}
|
|
if (i >= GRAMMARS.length) {
|
|
break;
|
|
}
|
|
|
|
if (!GRAMMARS[i][0]) {
|
|
matchingResult = {
|
|
ruleFrom: ruleStart,
|
|
ruleTo: i,
|
|
};
|
|
break;
|
|
}
|
|
|
|
// Fast rewinding to the next rule.
|
|
for (; i < GRAMMARS.length; i++) {
|
|
if (!GRAMMARS[i][0]) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
let parsedField = false;
|
|
if (matchingResult) {
|
|
let { ruleFrom, ruleTo } = matchingResult;
|
|
let detailStart = fieldScanner.parsingIndex;
|
|
for (let i = ruleFrom; i < ruleTo; i++) {
|
|
fieldScanner.updateFieldName(detailStart, GRAMMARS[i][1]);
|
|
fieldScanner.parsingIndex++;
|
|
detailStart++;
|
|
parsedField = true;
|
|
}
|
|
}
|
|
|
|
if (fieldScanner.parsingFinished) {
|
|
return parsedField;
|
|
}
|
|
|
|
let nextField = fieldScanner.getFieldDetailByIndex(
|
|
fieldScanner.parsingIndex
|
|
);
|
|
if (
|
|
nextField &&
|
|
nextField._reason != "autocomplete" &&
|
|
fieldScanner.parsingIndex > 0
|
|
) {
|
|
const regExpTelExtension = new RegExp(
|
|
"\\bext|ext\\b|extension|ramal", // pt-BR, pt-PT
|
|
"iu"
|
|
);
|
|
const previousField = fieldScanner.getFieldDetailByIndex(
|
|
fieldScanner.parsingIndex - 1
|
|
);
|
|
const previousFieldType = FormAutofillUtils.getCategoryFromFieldName(
|
|
previousField.fieldName
|
|
);
|
|
if (
|
|
previousField &&
|
|
previousFieldType == "tel" &&
|
|
this._matchRegexp(nextField.elementWeakRef.get(), regExpTelExtension)
|
|
) {
|
|
fieldScanner.updateFieldName(
|
|
fieldScanner.parsingIndex,
|
|
"tel-extension"
|
|
);
|
|
fieldScanner.parsingIndex++;
|
|
parsedField = true;
|
|
}
|
|
}
|
|
|
|
return parsedField;
|
|
},
|
|
|
|
/**
|
|
* Try to find the correct address-line[1-3] sequence and correct their field
|
|
* names.
|
|
*
|
|
* @param {FieldScanner} fieldScanner
|
|
* The current parsing status for all elements
|
|
* @returns {boolean}
|
|
* Return true if there is any field can be recognized in the parser,
|
|
* otherwise false.
|
|
*/
|
|
_parseAddressFields(fieldScanner) {
|
|
let parsedFields = false;
|
|
const addressLines = ["address-line1", "address-line2", "address-line3"];
|
|
|
|
// TODO: These address-line* regexps are for the lines with numbers, and
|
|
// they are the subset of the regexps in `heuristicsRegexp.js`. We have to
|
|
// find a better way to make them consistent.
|
|
const addressLineRegexps = {
|
|
"address-line1": new RegExp(
|
|
"address[_-]?line(1|one)|address1|addr1" +
|
|
"|addrline1|address_1" + // Extra rules by Firefox
|
|
"|indirizzo1" + // it-IT
|
|
"|住所1" + // ja-JP
|
|
"|地址1" + // zh-CN
|
|
"|주소.?1", // ko-KR
|
|
"iu"
|
|
),
|
|
"address-line2": new RegExp(
|
|
"address[_-]?line(2|two)|address2|addr2" +
|
|
"|addrline2|address_2" + // Extra rules by Firefox
|
|
"|indirizzo2" + // it-IT
|
|
"|住所2" + // ja-JP
|
|
"|地址2" + // zh-CN
|
|
"|주소.?2", // ko-KR
|
|
"iu"
|
|
),
|
|
"address-line3": new RegExp(
|
|
"address[_-]?line(3|three)|address3|addr3" +
|
|
"|addrline3|address_3" + // Extra rules by Firefox
|
|
"|indirizzo3" + // it-IT
|
|
"|住所3" + // ja-JP
|
|
"|地址3" + // zh-CN
|
|
"|주소.?3", // ko-KR
|
|
"iu"
|
|
),
|
|
};
|
|
while (!fieldScanner.parsingFinished) {
|
|
let detail = fieldScanner.getFieldDetailByIndex(
|
|
fieldScanner.parsingIndex
|
|
);
|
|
if (
|
|
!detail ||
|
|
!addressLines.includes(detail.fieldName) ||
|
|
detail._reason == "autocomplete"
|
|
) {
|
|
// When the field is not related to any address-line[1-3] fields or
|
|
// determined by autocomplete attr, it means the parsing process can be
|
|
// terminated.
|
|
break;
|
|
}
|
|
const elem = detail.elementWeakRef.get();
|
|
for (let regexp of Object.keys(addressLineRegexps)) {
|
|
if (this._matchRegexp(elem, addressLineRegexps[regexp])) {
|
|
fieldScanner.updateFieldName(fieldScanner.parsingIndex, regexp);
|
|
parsedFields = true;
|
|
}
|
|
}
|
|
fieldScanner.parsingIndex++;
|
|
}
|
|
|
|
return parsedFields;
|
|
},
|
|
|
|
/**
|
|
* Try to look for expiration date fields and revise the field names if needed.
|
|
*
|
|
* @param {FieldScanner} fieldScanner
|
|
* The current parsing status for all elements
|
|
* @returns {boolean}
|
|
* Return true if there is any field can be recognized in the parser,
|
|
* otherwise false.
|
|
*/
|
|
_parseCreditCardFields(fieldScanner) {
|
|
if (fieldScanner.parsingFinished) {
|
|
return false;
|
|
}
|
|
|
|
const savedIndex = fieldScanner.parsingIndex;
|
|
const detail = fieldScanner.getFieldDetailByIndex(
|
|
fieldScanner.parsingIndex
|
|
);
|
|
|
|
// Respect to autocomplete attr
|
|
if (!detail || (detail._reason && detail._reason == "autocomplete")) {
|
|
return false;
|
|
}
|
|
|
|
const monthAndYearFieldNames = ["cc-exp-month", "cc-exp-year"];
|
|
// Skip the uninteresting fields
|
|
if (
|
|
!["cc-exp", "cc-type", ...monthAndYearFieldNames].includes(
|
|
detail.fieldName
|
|
)
|
|
) {
|
|
return false;
|
|
}
|
|
|
|
const element = detail.elementWeakRef.get();
|
|
|
|
// If we didn't auto-discover type field, check every select for options that
|
|
// match credit card network names in value or label.
|
|
if (ChromeUtils.getClassName(element) == "HTMLSelectElement") {
|
|
for (let option of element.querySelectorAll("option")) {
|
|
if (
|
|
CreditCard.getNetworkFromName(option.value) ||
|
|
CreditCard.getNetworkFromName(option.text)
|
|
) {
|
|
fieldScanner.updateFieldName(fieldScanner.parsingIndex, "cc-type");
|
|
fieldScanner.parsingIndex++;
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
// If the input type is a month picker, then assume it's cc-exp.
|
|
if (element.type == "month") {
|
|
fieldScanner.updateFieldName(fieldScanner.parsingIndex, "cc-exp");
|
|
fieldScanner.parsingIndex++;
|
|
|
|
return true;
|
|
}
|
|
|
|
// Don't process the fields if expiration month and expiration year are already
|
|
// matched by regex in correct order.
|
|
if (
|
|
fieldScanner.getFieldDetailByIndex(fieldScanner.parsingIndex++)
|
|
.fieldName == "cc-exp-month" &&
|
|
!fieldScanner.parsingFinished &&
|
|
fieldScanner.getFieldDetailByIndex(fieldScanner.parsingIndex++)
|
|
.fieldName == "cc-exp-year"
|
|
) {
|
|
return true;
|
|
}
|
|
fieldScanner.parsingIndex = savedIndex;
|
|
|
|
// Determine the field name by checking if the fields are month select and year select
|
|
// likely.
|
|
if (this._isExpirationMonthLikely(element)) {
|
|
fieldScanner.updateFieldName(fieldScanner.parsingIndex, "cc-exp-month");
|
|
fieldScanner.parsingIndex++;
|
|
if (!fieldScanner.parsingFinished) {
|
|
const nextDetail = fieldScanner.getFieldDetailByIndex(
|
|
fieldScanner.parsingIndex
|
|
);
|
|
const nextElement = nextDetail.elementWeakRef.get();
|
|
if (this._isExpirationYearLikely(nextElement)) {
|
|
fieldScanner.updateFieldName(
|
|
fieldScanner.parsingIndex,
|
|
"cc-exp-year"
|
|
);
|
|
fieldScanner.parsingIndex++;
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
fieldScanner.parsingIndex = savedIndex;
|
|
|
|
// Verify that the following consecutive two fields can match cc-exp-month and cc-exp-year
|
|
// respectively.
|
|
if (this._findMatchedFieldName(element, ["cc-exp-month"])) {
|
|
fieldScanner.updateFieldName(fieldScanner.parsingIndex, "cc-exp-month");
|
|
fieldScanner.parsingIndex++;
|
|
if (!fieldScanner.parsingFinished) {
|
|
const nextDetail = fieldScanner.getFieldDetailByIndex(
|
|
fieldScanner.parsingIndex
|
|
);
|
|
const nextElement = nextDetail.elementWeakRef.get();
|
|
if (this._findMatchedFieldName(nextElement, ["cc-exp-year"])) {
|
|
fieldScanner.updateFieldName(
|
|
fieldScanner.parsingIndex,
|
|
"cc-exp-year"
|
|
);
|
|
fieldScanner.parsingIndex++;
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
fieldScanner.parsingIndex = savedIndex;
|
|
|
|
// Look for MM and/or YY(YY).
|
|
if (this._matchRegexp(element, /^mm$/gi)) {
|
|
fieldScanner.updateFieldName(fieldScanner.parsingIndex, "cc-exp-month");
|
|
fieldScanner.parsingIndex++;
|
|
if (!fieldScanner.parsingFinished) {
|
|
const nextDetail = fieldScanner.getFieldDetailByIndex(
|
|
fieldScanner.parsingIndex
|
|
);
|
|
const nextElement = nextDetail.elementWeakRef.get();
|
|
if (this._matchRegexp(nextElement, /^(yy|yyyy)$/)) {
|
|
fieldScanner.updateFieldName(
|
|
fieldScanner.parsingIndex,
|
|
"cc-exp-year"
|
|
);
|
|
fieldScanner.parsingIndex++;
|
|
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
fieldScanner.parsingIndex = savedIndex;
|
|
|
|
// Look for a cc-exp with 2-digit or 4-digit year.
|
|
if (
|
|
this._matchRegexp(
|
|
element,
|
|
/(?:exp.*date[^y\\n\\r]*|mm\\s*[-/]?\\s*)yy(?:[^y]|$)/gi
|
|
) ||
|
|
this._matchRegexp(
|
|
element,
|
|
/(?:exp.*date[^y\\n\\r]*|mm\\s*[-/]?\\s*)yyyy(?:[^y]|$)/gi
|
|
)
|
|
) {
|
|
fieldScanner.updateFieldName(fieldScanner.parsingIndex, "cc-exp");
|
|
fieldScanner.parsingIndex++;
|
|
return true;
|
|
}
|
|
fieldScanner.parsingIndex = savedIndex;
|
|
|
|
// Match general cc-exp regexp at last.
|
|
if (this._findMatchedFieldName(element, ["cc-exp"])) {
|
|
fieldScanner.updateFieldName(fieldScanner.parsingIndex, "cc-exp");
|
|
fieldScanner.parsingIndex++;
|
|
return true;
|
|
}
|
|
fieldScanner.parsingIndex = savedIndex;
|
|
|
|
// Set current field name to null as it failed to match any patterns.
|
|
fieldScanner.updateFieldName(fieldScanner.parsingIndex, null);
|
|
fieldScanner.parsingIndex++;
|
|
return true;
|
|
},
|
|
|
|
/**
|
|
* This function should provide all field details of a form which are placed
|
|
* in the belonging section. The details contain the autocomplete info
|
|
* (e.g. fieldName, section, etc).
|
|
*
|
|
* `allowDuplicates` is used for the xpcshell-test purpose currently because
|
|
* the heuristics should be verified that some duplicated elements still can
|
|
* be predicted correctly.
|
|
*
|
|
* @param {HTMLFormElement} form
|
|
* the elements in this form to be predicted the field info.
|
|
* @param {boolean} allowDuplicates
|
|
* true to remain any duplicated field details otherwise to remove the
|
|
* duplicated ones.
|
|
* @returns {Array<Array<Object>>}
|
|
* all sections within its field details in the form.
|
|
*/
|
|
getFormInfo(form, allowDuplicates = false) {
|
|
const eligibleFields = Array.from(form.elements).filter(elem =>
|
|
FormAutofillUtils.isFieldEligibleForAutofill(elem)
|
|
);
|
|
|
|
if (eligibleFields.length <= 0) {
|
|
return [];
|
|
}
|
|
|
|
let fieldScanner = new FieldScanner(eligibleFields, {
|
|
allowDuplicates,
|
|
sectionEnabled: this._sectionEnabled,
|
|
});
|
|
while (!fieldScanner.parsingFinished) {
|
|
let parsedPhoneFields = this._parsePhoneFields(fieldScanner);
|
|
let parsedAddressFields = this._parseAddressFields(fieldScanner);
|
|
let parsedExpirationDateFields = this._parseCreditCardFields(
|
|
fieldScanner
|
|
);
|
|
|
|
// If there is no any field parsed, the parsing cursor can be moved
|
|
// forward to the next one.
|
|
if (
|
|
!parsedPhoneFields &&
|
|
!parsedAddressFields &&
|
|
!parsedExpirationDateFields
|
|
) {
|
|
fieldScanner.parsingIndex++;
|
|
}
|
|
}
|
|
|
|
LabelUtils.clearLabelMap();
|
|
|
|
return fieldScanner.getSectionFieldDetails();
|
|
},
|
|
|
|
_regExpTableHashValue(...signBits) {
|
|
return signBits.reduce((p, c, i) => p | (!!c << i), 0);
|
|
},
|
|
|
|
_setRegExpListCache(regexps, b0, b1, b2) {
|
|
if (!this._regexpList) {
|
|
this._regexpList = [];
|
|
}
|
|
this._regexpList[this._regExpTableHashValue(b0, b1, b2)] = regexps;
|
|
},
|
|
|
|
_getRegExpListCache(b0, b1, b2) {
|
|
if (!this._regexpList) {
|
|
return null;
|
|
}
|
|
return this._regexpList[this._regExpTableHashValue(b0, b1, b2)] || null;
|
|
},
|
|
|
|
_getRegExpList(isAutoCompleteOff, elementTagName) {
|
|
let isSelectElem = elementTagName == "SELECT";
|
|
let regExpListCache = this._getRegExpListCache(
|
|
isAutoCompleteOff,
|
|
FormAutofill.isAutofillCreditCardsAvailable,
|
|
isSelectElem
|
|
);
|
|
if (regExpListCache) {
|
|
return regExpListCache;
|
|
}
|
|
const FIELDNAMES_IGNORING_AUTOCOMPLETE_OFF = [
|
|
"cc-name",
|
|
"cc-number",
|
|
"cc-exp-month",
|
|
"cc-exp-year",
|
|
"cc-exp",
|
|
"cc-type",
|
|
];
|
|
let regexps = isAutoCompleteOff
|
|
? FIELDNAMES_IGNORING_AUTOCOMPLETE_OFF
|
|
: Object.keys(this.RULES);
|
|
|
|
if (!FormAutofill.isAutofillCreditCardsAvailable) {
|
|
regexps = regexps.filter(
|
|
name => !FormAutofillUtils.isCreditCardField(name)
|
|
);
|
|
}
|
|
|
|
if (isSelectElem) {
|
|
const FIELDNAMES_FOR_SELECT_ELEMENT = [
|
|
"address-level1",
|
|
"address-level2",
|
|
"country",
|
|
"cc-exp-month",
|
|
"cc-exp-year",
|
|
"cc-exp",
|
|
"cc-type",
|
|
];
|
|
regexps = regexps.filter(name =>
|
|
FIELDNAMES_FOR_SELECT_ELEMENT.includes(name)
|
|
);
|
|
}
|
|
|
|
this._setRegExpListCache(
|
|
regexps,
|
|
isAutoCompleteOff,
|
|
FormAutofill.isAutofillCreditCardsAvailable,
|
|
isSelectElem
|
|
);
|
|
|
|
return regexps;
|
|
},
|
|
|
|
getInfo(element) {
|
|
let info = element.getAutocompleteInfo();
|
|
// An input[autocomplete="on"] will not be early return here since it stll
|
|
// needs to find the field name.
|
|
if (
|
|
info &&
|
|
info.fieldName &&
|
|
info.fieldName != "on" &&
|
|
info.fieldName != "off"
|
|
) {
|
|
info._reason = "autocomplete";
|
|
return info;
|
|
}
|
|
|
|
if (!this._prefEnabled) {
|
|
return null;
|
|
}
|
|
|
|
let isAutoCompleteOff =
|
|
element.autocomplete == "off" ||
|
|
(element.form && element.form.autocomplete == "off");
|
|
|
|
// "email" type of input is accurate for heuristics to determine its Email
|
|
// field or not. However, "tel" type is used for ZIP code for some web site
|
|
// (e.g. HomeDepot, BestBuy), so "tel" type should be not used for "tel"
|
|
// prediction.
|
|
if (element.type == "email" && !isAutoCompleteOff) {
|
|
return {
|
|
fieldName: "email",
|
|
section: "",
|
|
addressType: "",
|
|
contactType: "",
|
|
};
|
|
}
|
|
|
|
let regexps = this._getRegExpList(isAutoCompleteOff, element.tagName);
|
|
if (!regexps.length) {
|
|
return null;
|
|
}
|
|
|
|
let matchedFieldName = this._findMatchedFieldName(element, regexps);
|
|
if (matchedFieldName) {
|
|
return {
|
|
fieldName: matchedFieldName,
|
|
section: "",
|
|
addressType: "",
|
|
contactType: "",
|
|
};
|
|
}
|
|
|
|
return null;
|
|
},
|
|
|
|
/**
|
|
* @typedef ElementStrings
|
|
* @type {object}
|
|
* @yield {string} id - element id.
|
|
* @yield {string} name - element name.
|
|
* @yield {Array<string>} labels - extracted labels.
|
|
*/
|
|
|
|
/**
|
|
* Extract all the signature strings of an element.
|
|
*
|
|
* @param {HTMLElement} element
|
|
* @returns {ElementStrings}
|
|
*/
|
|
_getElementStrings(element) {
|
|
return {
|
|
*[Symbol.iterator]() {
|
|
yield element.id;
|
|
yield element.name;
|
|
|
|
const labels = LabelUtils.findLabelElements(element);
|
|
for (let label of labels) {
|
|
yield* LabelUtils.extractLabelStrings(label);
|
|
}
|
|
},
|
|
};
|
|
},
|
|
|
|
/**
|
|
* Find the first matched field name of the element wih given regex list.
|
|
*
|
|
* @param {HTMLElement} element
|
|
* @param {Array<string>} regexps
|
|
* The regex key names that correspond to pattern in the rule list.
|
|
* @returns {?string} The first matched field name
|
|
*/
|
|
_findMatchedFieldName(element, regexps) {
|
|
const getElementStrings = this._getElementStrings(element);
|
|
for (let regexp of regexps) {
|
|
for (let string of getElementStrings) {
|
|
if (this.RULES[regexp].test(string)) {
|
|
return regexp;
|
|
}
|
|
}
|
|
}
|
|
|
|
return null;
|
|
},
|
|
|
|
/**
|
|
* Determine whether the regexp can match any of element strings.
|
|
*
|
|
* @param {HTMLElement} element
|
|
* @param {RegExp} regexp
|
|
*
|
|
* @returns {boolean}
|
|
*/
|
|
_matchRegexp(element, regexp) {
|
|
const elemStrings = this._getElementStrings(element);
|
|
for (const str of elemStrings) {
|
|
if (regexp.test(str)) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
},
|
|
|
|
/**
|
|
* Phone field grammars - first matched grammar will be parsed. Grammars are
|
|
* separated by { REGEX_SEPARATOR, FIELD_NONE, 0 }. Suffix and extension are
|
|
* parsed separately unless they are necessary parts of the match.
|
|
* The following notation is used to describe the patterns:
|
|
* <cc> - country code field.
|
|
* <ac> - area code field.
|
|
* <phone> - phone or prefix.
|
|
* <suffix> - suffix.
|
|
* <ext> - extension.
|
|
* :N means field is limited to N characters, otherwise it is unlimited.
|
|
* (pattern <field>)? means pattern is optional and matched separately.
|
|
*
|
|
* This grammar list from Chromium will be enabled partially once we need to
|
|
* support more cases of Telephone fields.
|
|
*/
|
|
PHONE_FIELD_GRAMMARS: [
|
|
// Country code: <cc> Area Code: <ac> Phone: <phone> (- <suffix>
|
|
|
|
// (Ext: <ext>)?)?
|
|
// {REGEX_COUNTRY, FIELD_COUNTRY_CODE, 0},
|
|
// {REGEX_AREA, FIELD_AREA_CODE, 0},
|
|
// {REGEX_PHONE, FIELD_PHONE, 0},
|
|
// {REGEX_SEPARATOR, FIELD_NONE, 0},
|
|
|
|
// \( <ac> \) <phone>:3 <suffix>:4 (Ext: <ext>)?
|
|
// {REGEX_AREA_NOTEXT, FIELD_AREA_CODE, 3},
|
|
// {REGEX_PREFIX_SEPARATOR, FIELD_PHONE, 3},
|
|
// {REGEX_PHONE, FIELD_SUFFIX, 4},
|
|
// {REGEX_SEPARATOR, FIELD_NONE, 0},
|
|
|
|
// Phone: <cc> <ac>:3 - <phone>:3 - <suffix>:4 (Ext: <ext>)?
|
|
// {REGEX_PHONE, FIELD_COUNTRY_CODE, 0},
|
|
// {REGEX_PHONE, FIELD_AREA_CODE, 3},
|
|
// {REGEX_PREFIX_SEPARATOR, FIELD_PHONE, 3},
|
|
// {REGEX_SUFFIX_SEPARATOR, FIELD_SUFFIX, 4},
|
|
// {REGEX_SEPARATOR, FIELD_NONE, 0},
|
|
|
|
// Phone: <cc>:3 <ac>:3 <phone>:3 <suffix>:4 (Ext: <ext>)?
|
|
["tel", "tel-country-code", 3],
|
|
["tel", "tel-area-code", 3],
|
|
["tel", "tel-local-prefix", 3],
|
|
["tel", "tel-local-suffix", 4],
|
|
[null, null, 0],
|
|
|
|
// Area Code: <ac> Phone: <phone> (- <suffix> (Ext: <ext>)?)?
|
|
// {REGEX_AREA, FIELD_AREA_CODE, 0},
|
|
// {REGEX_PHONE, FIELD_PHONE, 0},
|
|
// {REGEX_SEPARATOR, FIELD_NONE, 0},
|
|
|
|
// Phone: <ac> <phone>:3 <suffix>:4 (Ext: <ext>)?
|
|
// {REGEX_PHONE, FIELD_AREA_CODE, 0},
|
|
// {REGEX_PHONE, FIELD_PHONE, 3},
|
|
// {REGEX_PHONE, FIELD_SUFFIX, 4},
|
|
// {REGEX_SEPARATOR, FIELD_NONE, 0},
|
|
|
|
// Phone: <cc> \( <ac> \) <phone> (- <suffix> (Ext: <ext>)?)?
|
|
// {REGEX_PHONE, FIELD_COUNTRY_CODE, 0},
|
|
// {REGEX_AREA_NOTEXT, FIELD_AREA_CODE, 0},
|
|
// {REGEX_PREFIX_SEPARATOR, FIELD_PHONE, 0},
|
|
// {REGEX_SEPARATOR, FIELD_NONE, 0},
|
|
|
|
// Phone: \( <ac> \) <phone> (- <suffix> (Ext: <ext>)?)?
|
|
// {REGEX_PHONE, FIELD_COUNTRY_CODE, 0},
|
|
// {REGEX_AREA_NOTEXT, FIELD_AREA_CODE, 0},
|
|
// {REGEX_PREFIX_SEPARATOR, FIELD_PHONE, 0},
|
|
// {REGEX_SEPARATOR, FIELD_NONE, 0},
|
|
|
|
// Phone: <cc> - <ac> - <phone> - <suffix> (Ext: <ext>)?
|
|
// {REGEX_PHONE, FIELD_COUNTRY_CODE, 0},
|
|
// {REGEX_PREFIX_SEPARATOR, FIELD_AREA_CODE, 0},
|
|
// {REGEX_PREFIX_SEPARATOR, FIELD_PHONE, 0},
|
|
// {REGEX_SUFFIX_SEPARATOR, FIELD_SUFFIX, 0},
|
|
// {REGEX_SEPARATOR, FIELD_NONE, 0},
|
|
|
|
// Area code: <ac>:3 Prefix: <prefix>:3 Suffix: <suffix>:4 (Ext: <ext>)?
|
|
// {REGEX_AREA, FIELD_AREA_CODE, 3},
|
|
// {REGEX_PREFIX, FIELD_PHONE, 3},
|
|
// {REGEX_SUFFIX, FIELD_SUFFIX, 4},
|
|
// {REGEX_SEPARATOR, FIELD_NONE, 0},
|
|
|
|
// Phone: <ac> Prefix: <phone> Suffix: <suffix> (Ext: <ext>)?
|
|
// {REGEX_PHONE, FIELD_AREA_CODE, 0},
|
|
// {REGEX_PREFIX, FIELD_PHONE, 0},
|
|
// {REGEX_SUFFIX, FIELD_SUFFIX, 0},
|
|
// {REGEX_SEPARATOR, FIELD_NONE, 0},
|
|
|
|
// Phone: <ac> - <phone>:3 - <suffix>:4 (Ext: <ext>)?
|
|
["tel", "tel-area-code", 0],
|
|
["tel", "tel-local-prefix", 3],
|
|
["tel", "tel-local-suffix", 4],
|
|
[null, null, 0],
|
|
|
|
// Phone: <cc> - <ac> - <phone> (Ext: <ext>)?
|
|
// {REGEX_PHONE, FIELD_COUNTRY_CODE, 0},
|
|
// {REGEX_PREFIX_SEPARATOR, FIELD_AREA_CODE, 0},
|
|
// {REGEX_SUFFIX_SEPARATOR, FIELD_PHONE, 0},
|
|
// {REGEX_SEPARATOR, FIELD_NONE, 0},
|
|
|
|
// Phone: <ac> - <phone> (Ext: <ext>)?
|
|
// {REGEX_AREA, FIELD_AREA_CODE, 0},
|
|
// {REGEX_PHONE, FIELD_PHONE, 0},
|
|
// {REGEX_SEPARATOR, FIELD_NONE, 0},
|
|
|
|
// Phone: <cc>:3 - <phone>:10 (Ext: <ext>)?
|
|
// {REGEX_PHONE, FIELD_COUNTRY_CODE, 3},
|
|
// {REGEX_PHONE, FIELD_PHONE, 10},
|
|
// {REGEX_SEPARATOR, FIELD_NONE, 0},
|
|
|
|
// Ext: <ext>
|
|
// {REGEX_EXTENSION, FIELD_EXTENSION, 0},
|
|
// {REGEX_SEPARATOR, FIELD_NONE, 0},
|
|
|
|
// Phone: <phone> (Ext: <ext>)?
|
|
// {REGEX_PHONE, FIELD_PHONE, 0},
|
|
// {REGEX_SEPARATOR, FIELD_NONE, 0},
|
|
],
|
|
};
|
|
|
|
XPCOMUtils.defineLazyGetter(FormAutofillHeuristics, "RULES", () => {
|
|
let sandbox = {};
|
|
const HEURISTICS_REGEXP = "chrome://formautofill/content/heuristicsRegexp.js";
|
|
Services.scriptloader.loadSubScript(HEURISTICS_REGEXP, sandbox);
|
|
return sandbox.HeuristicsRegExp.RULES;
|
|
});
|
|
|
|
XPCOMUtils.defineLazyGetter(FormAutofillHeuristics, "_prefEnabled", () => {
|
|
return Services.prefs.getBoolPref(PREF_HEURISTICS_ENABLED);
|
|
});
|
|
|
|
Services.prefs.addObserver(PREF_HEURISTICS_ENABLED, () => {
|
|
FormAutofillHeuristics._prefEnabled = Services.prefs.getBoolPref(
|
|
PREF_HEURISTICS_ENABLED
|
|
);
|
|
});
|
|
|
|
XPCOMUtils.defineLazyGetter(FormAutofillHeuristics, "_sectionEnabled", () => {
|
|
return Services.prefs.getBoolPref(PREF_SECTION_ENABLED);
|
|
});
|
|
|
|
Services.prefs.addObserver(PREF_SECTION_ENABLED, () => {
|
|
FormAutofillHeuristics._sectionEnabled = Services.prefs.getBoolPref(
|
|
PREF_SECTION_ENABLED
|
|
);
|
|
});
|