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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
import { XPCOMUtils } from "resource://gre/modules/XPCOMUtils.sys.mjs";
const lazy = {};
ChromeUtils.defineESModuleGetters(lazy, {
CreditCard: "resource://gre/modules/CreditCard.sys.mjs",
PrivateBrowsingUtils: "resource://gre/modules/PrivateBrowsingUtils.sys.mjs",
});
XPCOMUtils.defineLazyPreferenceGetter(lazy, "gDebug", "browser.formfill.debug");
XPCOMUtils.defineLazyPreferenceGetter(
lazy,
"gEnabled",
"browser.formfill.enable"
);
XPCOMUtils.defineLazyServiceGetter(
lazy,
"gFormFillService",
"@mozilla.org/satchel/form-fill-controller;1",
"nsIFormFillController"
);
function log(message) {
if (!lazy.gDebug) {
return;
}
dump("satchelFormListener: " + message + "\n");
Services.console.logStringMessage("satchelFormListener: " + message);
}
export class FormHistoryChild extends JSWindowActorChild {
handleEvent(event) {
switch (event.type) {
case "form-submission-detected":
this.#onFormSubmission(event);
break;
default:
throw new Error("Unexpected event");
}
}
#onFormSubmission(event) {
const form = event.detail.form;
if (
!lazy.gEnabled ||
lazy.PrivateBrowsingUtils.isContentWindowPrivate(form.ownerGlobal)
) {
return;
}
log("Form submit observer notified.");
if (form.getAttribute("autocomplete")?.toLowerCase() == "off") {
return;
}
const entries = [];
for (const input of form.elements) {
if (!HTMLInputElement.isInstance(input)) {
continue;
}
// Only use inputs that hold text values (not including type="password")
if (!input.mozIsTextField(true)) {
continue;
}
// Don't save fields that were previously type=password such as on sites
// that allow the user to toggle password visibility.
if (input.hasBeenTypePassword) {
continue;
}
// Bug 1780571, Bug 394612: If Login Manager marked this input, don't save it.
// The login manager will deal with remembering it.
if (lazy.gFormFillService.isLoginManagerField(input)) {
continue;
}
// Don't save values when @autocomplete is "off" or has a sensitive field name.
const autocompleteInfo = input.getAutocompleteInfo();
if (autocompleteInfo?.canAutomaticallyPersist === false) {
continue;
}
const value = input.lastInteractiveValue?.trim();
// Only save user entered values even if they match the default value.
// Any script input is ignored.
// See Bug 1642570 for details.
if (!value) {
continue;
}
// Save only when user input was last.
if (value != input.value.trim()) {
continue;
}
// Don't save credit card numbers.
if (lazy.CreditCard.isValidNumber(value)) {
log("skipping saving a credit card number");
continue;
}
const name = input.name || input.id;
if (!name) {
continue;
}
if (name == "searchbar-history") {
log('addEntry for input name "' + name + '" is denied');
continue;
}
// Limit stored data to 200 characters.
if (name.length > 200 || value.length > 200) {
log("skipping input that has a name/value too large");
continue;
}
entries.push({ name, value });
// Limit number of fields stored per form.
if (entries.length >= 100) {
log("not saving any more entries for this form.");
break;
}
}
if (entries.length) {
log("sending entries to parent process for form " + form.id);
this.sendAsyncMessage("FormHistory:FormSubmitEntries", entries);
}
}
}
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