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gecko-dev/toolkit/components/passwordmgr/LoginManagerContent.jsm

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JavaScript
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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/. */
"use strict";
var EXPORTED_SYMBOLS = [ "LoginManagerContent",
"LoginFormFactory",
"UserAutoCompleteResult" ];
const PASSWORD_INPUT_ADDED_COALESCING_THRESHOLD_MS = 1;
const AUTOCOMPLETE_AFTER_RIGHT_CLICK_THRESHOLD_MS = 400;
ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");
ChromeUtils.import("resource://gre/modules/Services.jsm");
ChromeUtils.import("resource://gre/modules/PrivateBrowsingUtils.jsm");
ChromeUtils.import("resource://gre/modules/PromiseUtils.jsm");
ChromeUtils.import("resource://gre/modules/Timer.jsm");
ChromeUtils.defineModuleGetter(this, "DeferredTask", "resource://gre/modules/DeferredTask.jsm");
ChromeUtils.defineModuleGetter(this, "FormLikeFactory",
"resource://gre/modules/FormLikeFactory.jsm");
ChromeUtils.defineModuleGetter(this, "LoginRecipesContent",
"resource://gre/modules/LoginRecipes.jsm");
ChromeUtils.defineModuleGetter(this, "LoginHelper",
"resource://gre/modules/LoginHelper.jsm");
ChromeUtils.defineModuleGetter(this, "InsecurePasswordUtils",
"resource://gre/modules/InsecurePasswordUtils.jsm");
XPCOMUtils.defineLazyServiceGetter(this, "gNetUtil",
"@mozilla.org/network/util;1",
"nsINetUtil");
XPCOMUtils.defineLazyGetter(this, "log", () => {
let logger = LoginHelper.createLogger("LoginManagerContent");
return logger.log.bind(logger);
});
Services.cpmm.addMessageListener("clearRecipeCache", () => {
LoginRecipesContent._clearRecipeCache();
});
// These mirror signon.* prefs.
var gEnabled, gAutofillForms, gStoreWhenAutocompleteOff;
var gLastRightClickTimeStamp = Number.NEGATIVE_INFINITY;
var observer = {
QueryInterface: ChromeUtils.generateQI([Ci.nsIObserver,
Ci.nsIFormSubmitObserver,
Ci.nsIWebProgressListener,
Ci.nsISupportsWeakReference]),
// nsIFormSubmitObserver
notify(formElement, aWindow, actionURI) {
log("observer notified for form submission.");
// We're invoked before the content's |onsubmit| handlers, so we
// can grab form data before it might be modified (see bug 257781).
try {
let formLike = LoginFormFactory.createFromForm(formElement);
LoginManagerContent._onFormSubmit(formLike);
} catch (e) {
log("Caught error in onFormSubmit(", e.lineNumber, "):", e.message);
Cu.reportError(e);
}
return true; // Always return true, or form submit will be canceled.
},
onPrefChange() {
gEnabled = Services.prefs.getBoolPref("signon.rememberSignons");
gAutofillForms = Services.prefs.getBoolPref("signon.autofillForms");
gStoreWhenAutocompleteOff = Services.prefs.getBoolPref("signon.storeWhenAutocompleteOff");
},
// nsIWebProgressListener
onLocationChange(aWebProgress, aRequest, aLocation, aFlags) {
// Only handle pushState/replaceState here.
if (!(aFlags & Ci.nsIWebProgressListener.LOCATION_CHANGE_SAME_DOCUMENT) ||
!(aWebProgress.loadType & Ci.nsIDocShell.LOAD_CMD_PUSHSTATE)) {
return;
}
log("onLocationChange handled:", aLocation.displaySpec, aWebProgress.DOMWindow.document);
LoginManagerContent._onNavigation(aWebProgress.DOMWindow.document);
},
onStateChange(aWebProgress, aRequest, aState, aStatus) {
if (!(aState & Ci.nsIWebProgressListener.STATE_START)) {
return;
}
// We only care about when a page triggered a load, not the user. For example:
// clicking refresh/back/forward, typing a URL and hitting enter, and loading a bookmark aren't
// likely to be when a user wants to save a login.
let channel = aRequest.QueryInterface(Ci.nsIChannel);
let triggeringPrincipal = channel.loadInfo.triggeringPrincipal;
if (triggeringPrincipal.isNullPrincipal ||
triggeringPrincipal.equals(Services.scriptSecurityManager.getSystemPrincipal())) {
return;
}
// Don't handle history navigation, reload, or pushState not triggered via chrome UI.
// e.g. history.go(-1), location.reload(), history.replaceState()
if (!(aWebProgress.loadType & Ci.nsIDocShell.LOAD_CMD_NORMAL)) {
log("onStateChange: loadType isn't LOAD_CMD_NORMAL:", aWebProgress.loadType);
return;
}
log("onStateChange handled:", channel);
LoginManagerContent._onNavigation(aWebProgress.DOMWindow.document);
},
handleEvent(aEvent) {
if (!aEvent.isTrusted) {
return;
}
if (!gEnabled) {
return;
}
switch (aEvent.type) {
// Only used for username fields.
case "focus": {
LoginManagerContent._onUsernameFocus(aEvent);
break;
}
case "mousedown": {
if (aEvent.button == 2) {
// Date.now() is used instead of event.timeStamp since
// dom.event.highrestimestamp.enabled isn't true on all channels yet.
gLastRightClickTimeStamp = Date.now();
}
break;
}
default: {
throw new Error("Unexpected event");
}
}
},
};
Services.obs.addObserver(observer, "earlyformsubmit");
var prefBranch = Services.prefs.getBranch("signon.");
prefBranch.addObserver("", observer.onPrefChange);
observer.onPrefChange(); // read initial values
// This object maps to the "child" process (even in the single-process case).
var LoginManagerContent = {
__formFillService: null, // FormFillController, for username autocompleting
get _formFillService() {
if (!this.__formFillService)
this.__formFillService =
Cc["@mozilla.org/satchel/form-fill-controller;1"].
getService(Ci.nsIFormFillController);
return this.__formFillService;
},
_getRandomId() {
return Cc["@mozilla.org/uuid-generator;1"]
.getService(Ci.nsIUUIDGenerator).generateUUID().toString();
},
_messages: [ "RemoteLogins:loginsFound",
"RemoteLogins:loginsAutoCompleted" ],
/**
* WeakMap of the root element of a FormLike to the FormLike representing its fields.
*
* This is used to be able to lookup an existing FormLike for a given root element since multiple
* calls to LoginFormFactory won't give the exact same object. When batching fills we don't always
* want to use the most recent list of elements for a FormLike since we may end up doing multiple
* fills for the same set of elements when a field gets added between arming and running the
* DeferredTask.
*
* @type {WeakMap}
*/
_formLikeByRootElement: new WeakMap(),
/**
* WeakMap of the root element of a WeakMap to the DeferredTask to fill its fields.
*
* This is used to be able to throttle fills for a FormLike since onDOMInputPasswordAdded gets
* dispatched for each password field added to a document but we only want to fill once per
* FormLike when multiple fields are added at once.
*
* @type {WeakMap}
*/
_deferredPasswordAddedTasksByRootElement: new WeakMap(),
// Map from form login requests to information about that request.
_requests: new Map(),
// Number of outstanding requests to each manager.
_managers: new Map(),
_takeRequest(msg) {
let data = msg.data;
let request = this._requests.get(data.requestId);
this._requests.delete(data.requestId);
let count = this._managers.get(msg.target);
if (--count === 0) {
this._managers.delete(msg.target);
for (let message of this._messages)
msg.target.removeMessageListener(message, this);
} else {
this._managers.set(msg.target, count);
}
return request;
},
_sendRequest(messageManager, requestData,
name, messageData) {
let count;
if (!(count = this._managers.get(messageManager))) {
this._managers.set(messageManager, 1);
for (let message of this._messages)
messageManager.addMessageListener(message, this);
} else {
this._managers.set(messageManager, ++count);
}
let requestId = this._getRandomId();
messageData.requestId = requestId;
messageManager.sendAsyncMessage(name, messageData);
let deferred = PromiseUtils.defer();
requestData.promise = deferred;
this._requests.set(requestId, requestData);
return deferred.promise;
},
receiveMessage(msg, window) {
if (msg.name == "RemoteLogins:fillForm") {
this.fillForm({
topDocument: window.document,
loginFormOrigin: msg.data.loginFormOrigin,
loginsFound: LoginHelper.vanillaObjectsToLogins(msg.data.logins),
recipes: msg.data.recipes,
inputElement: msg.objects.inputElement,
});
return;
}
let request = this._takeRequest(msg);
switch (msg.name) {
case "RemoteLogins:loginsFound": {
let loginsFound = LoginHelper.vanillaObjectsToLogins(msg.data.logins);
request.promise.resolve({
form: request.form,
loginsFound,
recipes: msg.data.recipes,
});
break;
}
case "RemoteLogins:loginsAutoCompleted": {
let loginsFound =
LoginHelper.vanillaObjectsToLogins(msg.data.logins);
let messageManager = msg.target;
request.promise.resolve({ logins: loginsFound, messageManager });
break;
}
}
},
/**
* Get relevant logins and recipes from the parent
*
* @param {HTMLFormElement} form - form to get login data for
* @param {Object} options
* @param {boolean} options.showMasterPassword - whether to show a master password prompt
*/
_getLoginDataFromParent(form, options) {
let doc = form.ownerDocument;
let win = doc.defaultView;
let formOrigin = LoginUtils._getPasswordOrigin(doc.documentURI);
if (!formOrigin) {
return Promise.reject("_getLoginDataFromParent: A form origin is required");
}
let actionOrigin = LoginUtils._getActionOrigin(form);
let messageManager = win.docShell.messageManager;
// XXX Weak??
let requestData = { form };
let messageData = { formOrigin,
actionOrigin,
options };
return this._sendRequest(messageManager, requestData,
"RemoteLogins:findLogins",
messageData);
},
_autoCompleteSearchAsync(aSearchString, aPreviousResult,
aElement, aRect) {
let doc = aElement.ownerDocument;
let form = LoginFormFactory.createFromField(aElement);
let win = doc.defaultView;
let formOrigin = LoginUtils._getPasswordOrigin(doc.documentURI);
let actionOrigin = LoginUtils._getActionOrigin(form);
let messageManager = win.docShell.messageManager;
let previousResult = aPreviousResult ?
{ searchString: aPreviousResult.searchString,
logins: LoginHelper.loginsToVanillaObjects(aPreviousResult.logins) } :
null;
let requestData = {};
let messageData = { formOrigin,
actionOrigin,
searchString: aSearchString,
previousResult,
rect: aRect,
isSecure: InsecurePasswordUtils.isFormSecure(form),
isPasswordField: aElement.type == "password",
};
return this._sendRequest(messageManager, requestData,
"RemoteLogins:autoCompleteLogins",
messageData);
},
setupEventListeners(global) {
global.addEventListener("pageshow", (event) => {
this.onPageShow(event, global.content);
});
global.addEventListener("blur", (event) => {
this.onUsernameInput(event);
});
},
setupProgressListener(window) {
if (!LoginHelper.formlessCaptureEnabled) {
return;
}
try {
let webProgress = window.docShell.
QueryInterface(Ci.nsIInterfaceRequestor).
getInterface(Ci.nsIWebProgress);
webProgress.addProgressListener(observer,
Ci.nsIWebProgress.NOTIFY_STATE_DOCUMENT |
Ci.nsIWebProgress.NOTIFY_LOCATION);
} catch (ex) {
// Ignore NS_ERROR_FAILURE if the progress listener was already added
}
},
onDOMFormHasPassword(event, window) {
if (!event.isTrusted) {
return;
}
let form = event.target;
let formLike = LoginFormFactory.createFromForm(form);
log("onDOMFormHasPassword:", form, formLike);
this._fetchLoginsFromParentAndFillForm(formLike, window);
},
onDOMInputPasswordAdded(event, window) {
if (!event.isTrusted) {
return;
}
let pwField = event.originalTarget;
if (pwField.form) {
// Fill is handled by onDOMFormHasPassword which is already throttled.
return;
}
// Only setup the listener for formless inputs.
// Capture within a <form> but without a submit event is bug 1287202.
this.setupProgressListener(window);
let formLike = LoginFormFactory.createFromField(pwField);
log("onDOMInputPasswordAdded:", pwField, formLike);
let deferredTask = this._deferredPasswordAddedTasksByRootElement.get(formLike.rootElement);
if (!deferredTask) {
log("Creating a DeferredTask to call _fetchLoginsFromParentAndFillForm soon");
this._formLikeByRootElement.set(formLike.rootElement, formLike);
deferredTask = new DeferredTask(() => {
// Get the updated formLike instead of the one at the time of creating the DeferredTask via
// a closure since it could be stale since FormLike.elements isn't live.
let formLike2 = this._formLikeByRootElement.get(formLike.rootElement);
log("Running deferred processing of onDOMInputPasswordAdded", formLike2);
this._deferredPasswordAddedTasksByRootElement.delete(formLike2.rootElement);
this._fetchLoginsFromParentAndFillForm(formLike2, window);
}, PASSWORD_INPUT_ADDED_COALESCING_THRESHOLD_MS, 0);
this._deferredPasswordAddedTasksByRootElement.set(formLike.rootElement, deferredTask);
}
if (deferredTask.isArmed) {
log("DeferredTask is already armed so just updating the FormLike");
// We update the FormLike so it (most important .elements) is fresh when the task eventually
// runs since changes to the elements could affect our field heuristics.
this._formLikeByRootElement.set(formLike.rootElement, formLike);
} else if (window.document.readyState == "complete") {
log("Arming the DeferredTask we just created since document.readyState == 'complete'");
deferredTask.arm();
} else {
window.addEventListener("DOMContentLoaded", function() {
log("Arming the onDOMInputPasswordAdded DeferredTask due to DOMContentLoaded");
deferredTask.arm();
}, {once: true});
}
},
/**
* Fetch logins from the parent for a given form and then attempt to fill it.
*
* @param {FormLike} form to fetch the logins for then try autofill.
* @param {Window} window
*/
_fetchLoginsFromParentAndFillForm(form, window) {
this._detectInsecureFormLikes(window);
let messageManager = window.docShell.messageManager;
messageManager.sendAsyncMessage("LoginStats:LoginEncountered");
if (!gEnabled) {
return;
}
this._getLoginDataFromParent(form, { showMasterPassword: true })
.then(this.loginsFound.bind(this))
.catch(Cu.reportError);
},
onPageShow(event, window) {
this._detectInsecureFormLikes(window);
},
/**
* Maps all DOM content documents in this content process, including those in
* frames, to the current state used by the Login Manager.
*/
loginFormStateByDocument: new WeakMap(),
/**
* Retrieves a reference to the state object associated with the given
* document. This is initialized to an object with default values.
*/
stateForDocument(document) {
let loginFormState = this.loginFormStateByDocument.get(document);
if (!loginFormState) {
loginFormState = {
/**
* Keeps track of filled fields and values.
*/
fillsByRootElement: new WeakMap(),
loginFormRootElements: new WeakSet(),
};
this.loginFormStateByDocument.set(document, loginFormState);
}
return loginFormState;
},
/**
* Compute whether there is an insecure login form on any frame of the current page, and
* notify the parent process. This is used to control whether insecure password UI appears.
*/
_detectInsecureFormLikes(topWindow) {
log("_detectInsecureFormLikes", topWindow.location.href);
// Returns true if this window or any subframes have insecure login forms.
let hasInsecureLoginForms = (thisWindow) => {
let doc = thisWindow.document;
let rootElsWeakSet = this.stateForDocument(doc).loginFormRootElements;
let hasLoginForm = ChromeUtils.nondeterministicGetWeakSetKeys(rootElsWeakSet)
.filter(el => el.isConnected).length > 0;
return (hasLoginForm && !thisWindow.isSecureContext) ||
Array.some(thisWindow.frames,
frame => hasInsecureLoginForms(frame));
};
let messageManager = topWindow.docShell.messageManager;
messageManager.sendAsyncMessage("RemoteLogins:insecureLoginFormPresent", {
hasInsecureLoginForms: hasInsecureLoginForms(topWindow),
});
},
/**
* Perform a password fill upon user request coming from the parent process.
* The fill will be in the form previously identified during page navigation.
*
* @param An object with the following properties:
* {
* topDocument:
* DOM document currently associated to the the top-level window
* for which the fill is requested. This may be different from the
* document that originally caused the login UI to be displayed.
* loginFormOrigin:
* String with the origin for which the login UI was displayed.
* This must match the origin of the form used for the fill.
* loginsFound:
* Array containing the login to fill. While other messages may
* have more logins, for this use case this is expected to have
* exactly one element. The origin of the login may be different
* from the origin of the form used for the fill.
* recipes:
* Fill recipes transmitted together with the original message.
* inputElement:
* Username or password input element from the form we want to fill.
* }
*/
fillForm({ topDocument, loginFormOrigin, loginsFound, recipes, inputElement }) {
if (!inputElement) {
log("fillForm: No input element specified");
return;
}
if (LoginUtils._getPasswordOrigin(topDocument.documentURI) != loginFormOrigin) {
if (!inputElement ||
LoginUtils._getPasswordOrigin(inputElement.ownerDocument.documentURI) != loginFormOrigin) {
log("fillForm: The requested origin doesn't match the one form the",
"document. This may mean we navigated to a document from a different",
"site before we had a chance to indicate this change in the user",
"interface.");
return;
}
}
let clobberUsername = true;
let form = LoginFormFactory.createFromField(inputElement);
if (inputElement.type == "password") {
clobberUsername = false;
}
this._fillForm(form, loginsFound, recipes, {
inputElement,
autofillForm: true,
clobberUsername,
clobberPassword: true,
userTriggered: true,
});
},
loginsFound({ form, loginsFound, recipes }) {
let doc = form.ownerDocument;
let autofillForm = gAutofillForms && !PrivateBrowsingUtils.isContentWindowPrivate(doc.defaultView);
let formOrigin = LoginUtils._getPasswordOrigin(doc.documentURI);
LoginRecipesContent.cacheRecipes(formOrigin, doc.defaultView, recipes);
this._fillForm(form, loginsFound, recipes, {autofillForm});
},
/**
* Focus event handler for username fields to decide whether to show autocomplete.
* @param {FocusEvent} event
*/
_onUsernameFocus(event) {
let focusedField = event.target;
if (!focusedField.mozIsTextField(true) || focusedField.readOnly) {
return;
}
if (this._isLoginAlreadyFilled(focusedField)) {
log("_onUsernameFocus: Already filled");
return;
}
/*
* A `mousedown` event is fired before the `focus` event if the user right clicks into an
* unfocused field. In that case we don't want to show both autocomplete and a context menu
* overlapping so we check against the timestamp that was set by the `mousedown` event if the
* button code indicated a right click.
* We use a timestamp instead of a bool to avoid complexity when dealing with multiple input
* forms and the fact that a mousedown into an already focused field does not trigger another focus.
* Date.now() is used instead of event.timeStamp since dom.event.highrestimestamp.enabled isn't
* true on all channels yet.
*/
let timeDiff = Date.now() - gLastRightClickTimeStamp;
if (timeDiff < AUTOCOMPLETE_AFTER_RIGHT_CLICK_THRESHOLD_MS) {
log("Not opening autocomplete after focus since a context menu was opened within",
timeDiff, "ms");
return;
}
log("maybeOpenAutocompleteAfterFocus: Opening the autocomplete popup");
this._formFillService.showPopup();
},
/**
* Listens for DOMAutoComplete and blur events on an input field.
*/
onUsernameInput(event) {
if (!event.isTrusted)
return;
if (!gEnabled)
return;
var acInputField = event.target;
// This is probably a bit over-conservatative.
if (ChromeUtils.getClassName(acInputField.ownerDocument) != "HTMLDocument")
return;
if (!LoginHelper.isUsernameFieldType(acInputField))
return;
var acForm = LoginFormFactory.createFromField(acInputField);
if (!acForm)
return;
// If the username is blank, bail out now -- we don't want
// fillForm() to try filling in a login without a username
// to filter on (bug 471906).
if (!acInputField.value)
return;
log("onUsernameInput from", event.type);
let doc = acForm.ownerDocument;
let formOrigin = LoginUtils._getPasswordOrigin(doc.documentURI);
let recipes = LoginRecipesContent.getRecipes(formOrigin, doc.defaultView);
// Make sure the username field fillForm will use is the
// same field as the autocomplete was activated on.
var [usernameField, passwordField, ignored] =
this._getFormFields(acForm, false, recipes);
if (usernameField == acInputField && passwordField) {
this._getLoginDataFromParent(acForm, { showMasterPassword: false })
.then(({ form, loginsFound, recipes }) => {
this._fillForm(form, loginsFound, recipes, {
autofillForm: true,
clobberPassword: true,
userTriggered: true,
});
})
.catch(Cu.reportError);
} else {
// Ignore the event, it's for some input we don't care about.
}
},
/**
* @param {FormLike} form - the FormLike to look for password fields in.
* @param {Object} options
* @param {bool} [options.skipEmptyFields=false] - Whether to ignore password fields with no value.
* Used at capture time since saving empty values isn't
* useful.
* @param {Object} [options.fieldOverrideRecipe=null] - A relevant field override recipe to use.
* @return {Array|null} Array of password field elements for the specified form.
* If no pw fields are found, or if more than 3 are found, then null
* is returned.
*/
_getPasswordFields(form, {
fieldOverrideRecipe = null,
skipEmptyFields = false,
} = {}) {
// Locate the password fields in the form.
let pwFields = [];
for (let i = 0; i < form.elements.length; i++) {
let element = form.elements[i];
if (ChromeUtils.getClassName(element) !== "HTMLInputElement" ||
element.type != "password") {
continue;
}
// Exclude ones matching a `notPasswordSelector`, if specified.
if (fieldOverrideRecipe && fieldOverrideRecipe.notPasswordSelector &&
element.matches(fieldOverrideRecipe.notPasswordSelector)) {
log("skipping password field (id/name is", element.id, " / ",
element.name + ") due to recipe:", fieldOverrideRecipe);
continue;
}
if (skipEmptyFields && !element.value.trim()) {
continue;
}
pwFields[pwFields.length] = {
index: i,
element,
};
}
// If too few or too many fields, bail out.
if (pwFields.length == 0) {
log("(form ignored -- no password fields.)");
return null;
} else if (pwFields.length > 3) {
log("(form ignored -- too many password fields. [ got ", pwFields.length, "])");
return null;
}
return pwFields;
},
/**
* Returns the username and password fields found in the form.
* Can handle complex forms by trying to figure out what the
* relevant fields are.
*
* @param {FormLike} form
* @param {bool} isSubmission
* @param {Set} recipes
* @return {Array} [usernameField, newPasswordField, oldPasswordField]
*
* usernameField may be null.
* newPasswordField will always be non-null.
* oldPasswordField may be null. If null, newPasswordField is just
* "theLoginField". If not null, the form is apparently a
* change-password field, with oldPasswordField containing the password
* that is being changed.
*
* Note that even though we can create a FormLike from a text field,
* this method will only return a non-null usernameField if the
* FormLike has a password field.
*/
_getFormFields(form, isSubmission, recipes) {
var usernameField = null;
var pwFields = null;
var fieldOverrideRecipe = LoginRecipesContent.getFieldOverrides(recipes, form);
if (fieldOverrideRecipe) {
var pwOverrideField = LoginRecipesContent.queryLoginField(
form,
fieldOverrideRecipe.passwordSelector
);
if (pwOverrideField) {
// The field from the password override may be in a different FormLike.
let formLike = LoginFormFactory.createFromField(pwOverrideField);
pwFields = [{
index: [...formLike.elements].indexOf(pwOverrideField),
element: pwOverrideField,
}];
}
var usernameOverrideField = LoginRecipesContent.queryLoginField(
form,
fieldOverrideRecipe.usernameSelector
);
if (usernameOverrideField) {
usernameField = usernameOverrideField;
}
}
if (!pwFields) {
// Locate the password field(s) in the form. Up to 3 supported.
// If there's no password field, there's nothing for us to do.
pwFields = this._getPasswordFields(form, {
fieldOverrideRecipe,
skipEmptyFields: isSubmission,
});
}
if (!pwFields) {
return [null, null, null];
}
if (!usernameField) {
// Locate the username field in the form by searching backwards
// from the first password field, assume the first text field is the
// username. We might not find a username field if the user is
// already logged in to the site.
for (var i = pwFields[0].index - 1; i >= 0; i--) {
var element = form.elements[i];
if (!LoginHelper.isUsernameFieldType(element)) {
continue;
}
if (fieldOverrideRecipe && fieldOverrideRecipe.notUsernameSelector &&
element.matches(fieldOverrideRecipe.notUsernameSelector)) {
continue;
}
usernameField = element;
break;
}
}
if (!usernameField)
log("(form -- no username field found)");
else
log("Username field ", usernameField, "has name/value:",
usernameField.name, "/", usernameField.value);
// If we're not submitting a form (it's a page load), there are no
// password field values for us to use for identifying fields. So,
// just assume the first password field is the one to be filled in.
if (!isSubmission || pwFields.length == 1) {
var passwordField = pwFields[0].element;
log("Password field", passwordField, "has name: ", passwordField.name);
return [usernameField, passwordField, null];
}
// Try to figure out WTF is in the form based on the password values.
var oldPasswordField, newPasswordField;
var pw1 = pwFields[0].element.value;
var pw2 = pwFields[1].element.value;
var pw3 = (pwFields[2] ? pwFields[2].element.value : null);
if (pwFields.length == 3) {
// Look for two identical passwords, that's the new password
if (pw1 == pw2 && pw2 == pw3) {
// All 3 passwords the same? Weird! Treat as if 1 pw field.
newPasswordField = pwFields[0].element;
oldPasswordField = null;
} else if (pw1 == pw2) {
newPasswordField = pwFields[0].element;
oldPasswordField = pwFields[2].element;
} else if (pw2 == pw3) {
oldPasswordField = pwFields[0].element;
newPasswordField = pwFields[2].element;
} else if (pw1 == pw3) {
// A bit odd, but could make sense with the right page layout.
newPasswordField = pwFields[0].element;
oldPasswordField = pwFields[1].element;
} else {
// We can't tell which of the 3 passwords should be saved.
log("(form ignored -- all 3 pw fields differ)");
return [null, null, null];
}
} else if (pw1 == pw2) {
// pwFields.length == 2
// Treat as if 1 pw field
newPasswordField = pwFields[0].element;
oldPasswordField = null;
} else {
// Just assume that the 2nd password is the new password
oldPasswordField = pwFields[0].element;
newPasswordField = pwFields[1].element;
}
log("Password field (new) id/name is: ", newPasswordField.id, " / ", newPasswordField.name);
if (oldPasswordField) {
log("Password field (old) id/name is: ", oldPasswordField.id, " / ", oldPasswordField.name);
} else {
log("Password field (old):", oldPasswordField);
}
return [usernameField, newPasswordField, oldPasswordField];
},
/**
* @return true if the page requests autocomplete be disabled for the
* specified element.
*/
_isAutocompleteDisabled(element) {
return element && element.autocomplete == "off";
},
/**
* Trigger capture on any relevant FormLikes due to a navigation alone (not
* necessarily due to an actual form submission). This method is used to
* capture logins for cases where form submit events are not used.
*
* To avoid multiple notifications for the same FormLike, this currently
* avoids capturing when dealing with a real <form> which are ideally already
* using a submit event.
*
* @param {Document} document being navigated
*/
_onNavigation(aDocument) {
let state = this.stateForDocument(aDocument);
let rootElsWeakSet = state.loginFormRootElements;
let weakLoginFormRootElements = ChromeUtils.nondeterministicGetWeakSetKeys(rootElsWeakSet);
log("_onNavigation: state:", state, "loginFormRootElements approx size:", weakLoginFormRootElements.length,
"document:", aDocument);
for (let formRoot of weakLoginFormRootElements) {
if (!formRoot.isConnected) {
continue;
}
if (ChromeUtils.getClassName(formRoot) === "HTMLFormElement") {
// For now only perform capture upon navigation for FormLike's without
// a <form> to avoid capture from both an earlyformsubmit and
// navigation for the same "form".
log("Ignoring navigation for the form root to avoid multiple prompts " +
"since it was for a real <form>");
continue;
}
let formLike = this._formLikeByRootElement.get(formRoot);
this._onFormSubmit(formLike);
}
},
/**
* Called by our observer when notified of a form submission.
* [Note that this happens before any DOM onsubmit handlers are invoked.]
* Looks for a password change in the submitted form, so we can update
* our stored password.
*
* @param {FormLike} form
*/
_onFormSubmit(form) {
log("_onFormSubmit", form);
var doc = form.ownerDocument;
var win = doc.defaultView;
if (PrivateBrowsingUtils.isContentWindowPrivate(win)) {
// We won't do anything in private browsing mode anyway,
// so there's no need to perform further checks.
log("(form submission ignored in private browsing mode)");
return;
}
// If password saving is disabled (globally or for host), bail out now.
if (!gEnabled)
return;
var hostname = LoginUtils._getPasswordOrigin(doc.documentURI);
if (!hostname) {
log("(form submission ignored -- invalid hostname)");
return;
}
let formSubmitURL = LoginUtils._getActionOrigin(form);
let messageManager = win.docShell.messageManager;
let recipes = LoginRecipesContent.getRecipes(hostname, win);
// Get the appropriate fields from the form.
var [usernameField, newPasswordField, oldPasswordField] =
this._getFormFields(form, true, recipes);
// Need at least 1 valid password field to do anything.
if (newPasswordField == null)
return;
// Check for autocomplete=off attribute. We don't use it to prevent
// autofilling (for existing logins), but won't save logins when it's
// present and the storeWhenAutocompleteOff pref is false.
// XXX spin out a bug that we don't update timeLastUsed in this case?
if ((this._isAutocompleteDisabled(form) ||
this._isAutocompleteDisabled(usernameField) ||
this._isAutocompleteDisabled(newPasswordField) ||
this._isAutocompleteDisabled(oldPasswordField)) &&
!gStoreWhenAutocompleteOff) {
log("(form submission ignored -- autocomplete=off found)");
return;
}
// Don't try to send DOM nodes over IPC.
let mockUsername = usernameField ?
{ name: usernameField.name,
value: usernameField.value } :
null;
let mockPassword = { name: newPasswordField.name,
value: newPasswordField.value };
let mockOldPassword = oldPasswordField ?
{ name: oldPasswordField.name,
value: oldPasswordField.value } :
null;
// Make sure to pass the opener's top in case it was in a frame.
let openerTopWindow = win.opener ? win.opener.top : null;
messageManager.sendAsyncMessage("RemoteLogins:onFormSubmit",
{ hostname,
formSubmitURL,
usernameField: mockUsername,
newPasswordField: mockPassword,
oldPasswordField: mockOldPassword },
{ openerTopWindow });
},
/**
* Attempt to find the username and password fields in a form, and fill them
* in using the provided logins and recipes.
*
* @param {LoginForm} form
* @param {nsILoginInfo[]} foundLogins an array of nsILoginInfo that could be
used for the form
* @param {Set} recipes a set of recipes that could be used to affect how the
form is filled
* @param {Object} [options = {}] a list of options for this method
* @param {HTMLInputElement} [options.inputElement = null] an optional target
* input element we want to fill
* @param {bool} [options.autofillForm = false] denotes if we should fill the
* form in automatically
* @param {bool} [options.clobberUsername = false] controls if an existing
* username can be overwritten. If this is false and an inputElement
* of type password is also passed, the username field will be ignored.
* If this is false and no inputElement is passed, if the username
* field value is not found in foundLogins, it will not fill the
* password.
* @param {bool} [options.clobberPassword = false] controls if an existing
* password value can be overwritten
* @param {bool} [options.userTriggered = false] an indication of whether
* this filling was triggered by the user
*/
_fillForm(form, foundLogins, recipes, {
inputElement = null,
autofillForm = false,
clobberUsername = false,
clobberPassword = false,
userTriggered = false,
} = {}) {
if (ChromeUtils.getClassName(form) === "HTMLFormElement") {
throw new Error("_fillForm should only be called with FormLike objects");
}
log("_fillForm", form.elements);
let ignoreAutocomplete = true;
// Will be set to one of AUTOFILL_RESULT in the `try` block.
let autofillResult = -1;
const AUTOFILL_RESULT = {
FILLED: 0,
NO_PASSWORD_FIELD: 1,
PASSWORD_DISABLED_READONLY: 2,
NO_LOGINS_FIT: 3,
NO_SAVED_LOGINS: 4,
EXISTING_PASSWORD: 5,
EXISTING_USERNAME: 6,
MULTIPLE_LOGINS: 7,
NO_AUTOFILL_FORMS: 8,
AUTOCOMPLETE_OFF: 9,
INSECURE: 10,
};
try {
// Nothing to do if we have no matching logins available,
// and there isn't a need to show the insecure form warning.
if (foundLogins.length == 0 &&
(InsecurePasswordUtils.isFormSecure(form) ||
!LoginHelper.showInsecureFieldWarning)) {
// We don't log() here since this is a very common case.
autofillResult = AUTOFILL_RESULT.NO_SAVED_LOGINS;
return;
}
// Heuristically determine what the user/pass fields are
// We do this before checking to see if logins are stored,
// so that the user isn't prompted for a master password
// without need.
var [usernameField, passwordField, ignored] =
this._getFormFields(form, false, recipes);
// If we have a password inputElement parameter and it's not
// the same as the one heuristically found, use the parameter
// one instead.
if (inputElement) {
if (inputElement.type == "password") {
passwordField = inputElement;
if (!clobberUsername) {
usernameField = null;
}
} else if (LoginHelper.isUsernameFieldType(inputElement)) {
usernameField = inputElement;
} else {
throw new Error("Unexpected input element type.");
}
}
// Need a valid password field to do anything.
if (passwordField == null) {
log("not filling form, no password field found");
autofillResult = AUTOFILL_RESULT.NO_PASSWORD_FIELD;
return;
}
// If the password field is disabled or read-only, there's nothing to do.
if (passwordField.disabled || passwordField.readOnly) {
log("not filling form, password field disabled or read-only");
autofillResult = AUTOFILL_RESULT.PASSWORD_DISABLED_READONLY;
return;
}
// Attach autocomplete stuff to the username field, if we have
// one. This is normally used to select from multiple accounts,
// but even with one account we should refill if the user edits.
// We would also need this attached to show the insecure login
// warning, regardless of saved login.
if (usernameField) {
this._formFillService.markAsLoginManagerField(usernameField);
}
// Nothing to do if we have no matching logins available.
// Only insecure pages reach this block and logs the same
// telemetry flag.
if (foundLogins.length == 0) {
// We don't log() here since this is a very common case.
autofillResult = AUTOFILL_RESULT.NO_SAVED_LOGINS;
return;
}
// Prevent autofilling insecure forms.
if (!userTriggered && !LoginHelper.insecureAutofill &&
!InsecurePasswordUtils.isFormSecure(form)) {
log("not filling form since it's insecure");
autofillResult = AUTOFILL_RESULT.INSECURE;
return;
}
var isAutocompleteOff = false;
if (this._isAutocompleteDisabled(form) ||
this._isAutocompleteDisabled(usernameField) ||
this._isAutocompleteDisabled(passwordField)) {
isAutocompleteOff = true;
}
// Discard logins which have username/password values that don't
// fit into the fields (as specified by the maxlength attribute).
// The user couldn't enter these values anyway, and it helps
// with sites that have an extra PIN to be entered (bug 391514)
var maxUsernameLen = Number.MAX_VALUE;
var maxPasswordLen = Number.MAX_VALUE;
// If attribute wasn't set, default is -1.
if (usernameField && usernameField.maxLength >= 0)
maxUsernameLen = usernameField.maxLength;
if (passwordField.maxLength >= 0)
maxPasswordLen = passwordField.maxLength;
var logins = foundLogins.filter(function(l) {
var fit = (l.username.length <= maxUsernameLen &&
l.password.length <= maxPasswordLen);
if (!fit)
log("Ignored", l.username, "login: won't fit");
return fit;
}, this);
if (logins.length == 0) {
log("form not filled, none of the logins fit in the field");
autofillResult = AUTOFILL_RESULT.NO_LOGINS_FIT;
return;
}
// Don't clobber an existing password.
if (passwordField.value && !clobberPassword) {
log("form not filled, the password field was already filled");
autofillResult = AUTOFILL_RESULT.EXISTING_PASSWORD;
return;
}
// Select a login to use for filling in the form.
var selectedLogin;
if (!clobberUsername && usernameField && (usernameField.value ||
usernameField.disabled ||
usernameField.readOnly)) {
// If username was specified in the field, it's disabled or it's readOnly, only fill in the
// password if we find a matching login.
var username = usernameField.value.toLowerCase();
let matchingLogins = logins.filter(l =>
l.username.toLowerCase() == username);
if (matchingLogins.length == 0) {
log("Password not filled. None of the stored logins match the username already present.");
autofillResult = AUTOFILL_RESULT.EXISTING_USERNAME;
return;
}
// If there are multiple, and one matches case, use it
for (let l of matchingLogins) {
if (l.username == usernameField.value) {
selectedLogin = l;
}
}
// Otherwise just use the first
if (!selectedLogin) {
selectedLogin = matchingLogins[0];
}
} else if (logins.length == 1) {
selectedLogin = logins[0];
} else {
// We have multiple logins. Handle a special case here, for sites
// which have a normal user+pass login *and* a password-only login
// (eg, a PIN). Prefer the login that matches the type of the form
// (user+pass or pass-only) when there's exactly one that matches.
let matchingLogins;
if (usernameField)
matchingLogins = logins.filter(l => l.username);
else
matchingLogins = logins.filter(l => !l.username);
if (matchingLogins.length != 1) {
log("Multiple logins for form, so not filling any.");
autofillResult = AUTOFILL_RESULT.MULTIPLE_LOGINS;
return;
}
selectedLogin = matchingLogins[0];
}
// We will always have a selectedLogin at this point.
if (!autofillForm) {
log("autofillForms=false but form can be filled");
autofillResult = AUTOFILL_RESULT.NO_AUTOFILL_FORMS;
return;
}
if (isAutocompleteOff && !ignoreAutocomplete) {
log("Not filling the login because we're respecting autocomplete=off");
autofillResult = AUTOFILL_RESULT.AUTOCOMPLETE_OFF;
return;
}
// Fill the form
if (usernameField) {
// Don't modify the username field if it's disabled or readOnly so we preserve its case.
let disabledOrReadOnly = usernameField.disabled || usernameField.readOnly;
let userNameDiffers = selectedLogin.username != usernameField.value;
// Don't replace the username if it differs only in case, and the user triggered
// this autocomplete. We assume that if it was user-triggered the entered text
// is desired.
let userEnteredDifferentCase = userTriggered && userNameDiffers &&
usernameField.value.toLowerCase() == selectedLogin.username.toLowerCase();
if (!disabledOrReadOnly && !userEnteredDifferentCase && userNameDiffers) {
usernameField.setUserInput(selectedLogin.username);
}
}
let doc = form.ownerDocument;
if (passwordField.value != selectedLogin.password) {
passwordField.setUserInput(selectedLogin.password);
let autoFilledLogin = {
guid: selectedLogin.QueryInterface(Ci.nsILoginMetaInfo).guid,
username: selectedLogin.username,
usernameField: usernameField ? Cu.getWeakReference(usernameField) : null,
password: selectedLogin.password,
passwordField: Cu.getWeakReference(passwordField),
};
log("Saving autoFilledLogin", autoFilledLogin.guid, "for", form.rootElement);
this.stateForDocument(doc).fillsByRootElement.set(form.rootElement, autoFilledLogin);
}
log("_fillForm succeeded");
autofillResult = AUTOFILL_RESULT.FILLED;
let win = doc.defaultView;
let messageManager = win.docShell.messageManager;
messageManager.sendAsyncMessage("LoginStats:LoginFillSuccessful");
} finally {
if (autofillResult == -1) {
// eslint-disable-next-line no-unsafe-finally
throw new Error("_fillForm: autofillResult must be specified");
}
if (!userTriggered) {
// Ignore fills as a result of user action for this probe.
Services.telemetry.getHistogramById("PWMGR_FORM_AUTOFILL_RESULT").add(autofillResult);
if (usernameField) {
let focusedElement = this._formFillService.focusedInput;
if (usernameField == focusedElement &&
autofillResult !== AUTOFILL_RESULT.FILLED) {
log("_fillForm: Opening username autocomplete popup since the form wasn't autofilled");
this._formFillService.showPopup();
}
}
}
if (usernameField) {
log("_fillForm: Attaching event listeners to usernameField");
usernameField.addEventListener("focus", observer);
usernameField.addEventListener("mousedown", observer);
}
Services.obs.notifyObservers(form.rootElement, "passwordmgr-processed-form");
}
},
/**
* Given a field, determine whether that field was last filled as a username
* field AND whether the username is still filled in with the username AND
* whether the associated password field has the matching password.
*
* @note This could possibly be unified with getFieldContext but they have
* slightly different use cases. getFieldContext looks up recipes whereas this
* method doesn't need to since it's only returning a boolean based upon the
* recipes used for the last fill (in _fillForm).
*
* @param {HTMLInputElement} aUsernameField element contained in a FormLike
* cached in _formLikeByRootElement.
* @returns {Boolean} whether the username and password fields still have the
* last-filled values, if previously filled.
*/
_isLoginAlreadyFilled(aUsernameField) {
let formLikeRoot = FormLikeFactory.findRootForField(aUsernameField);
// Look for the existing FormLike.
let existingFormLike = this._formLikeByRootElement.get(formLikeRoot);
if (!existingFormLike) {
throw new Error("_isLoginAlreadyFilled called with a username field with " +
"no rootElement FormLike");
}
log("_isLoginAlreadyFilled: existingFormLike", existingFormLike);
let filledLogin = this.stateForDocument(aUsernameField.ownerDocument).fillsByRootElement.get(formLikeRoot);
if (!filledLogin) {
return false;
}
// Unpack the weak references.
let autoFilledUsernameField = filledLogin.usernameField ? filledLogin.usernameField.get() : null;
let autoFilledPasswordField = filledLogin.passwordField.get();
// Check username and password values match what was filled.
if (!autoFilledUsernameField ||
autoFilledUsernameField != aUsernameField ||
autoFilledUsernameField.value != filledLogin.username ||
!autoFilledPasswordField ||
autoFilledPasswordField.value != filledLogin.password) {
return false;
}
return true;
},
/**
* Verify if a field is a valid login form field and
* returns some information about it's FormLike.
*
* @param {Element} aField
* A form field we want to verify.
*
* @returns {Object} an object with information about the
* FormLike username and password field
* or null if the passed field is invalid.
*/
getFieldContext(aField) {
// If the element is not a proper form field, return null.
if (ChromeUtils.getClassName(aField) !== "HTMLInputElement" ||
(aField.type != "password" && !LoginHelper.isUsernameFieldType(aField)) ||
!aField.ownerDocument) {
return null;
}
let form = LoginFormFactory.createFromField(aField);
let doc = aField.ownerDocument;
let formOrigin = LoginUtils._getPasswordOrigin(doc.documentURI);
let recipes = LoginRecipesContent.getRecipes(formOrigin, doc.defaultView);
let [usernameField, newPasswordField] =
this._getFormFields(form, false, recipes);
// If we are not verifying a password field, we want
// to use aField as the username field.
if (aField.type != "password") {
usernameField = aField;
}
return {
usernameField: {
found: !!usernameField,
disabled: usernameField && (usernameField.disabled || usernameField.readOnly),
},
passwordField: {
found: !!newPasswordField,
disabled: newPasswordField && (newPasswordField.disabled || newPasswordField.readOnly),
},
};
},
};
var LoginUtils = {
/**
* Get the parts of the URL we want for identification.
* Strip out things like the userPass portion
*/
_getPasswordOrigin(uriString, allowJS) {
var realm = "";
try {
var uri = Services.io.newURI(uriString);
if (allowJS && uri.scheme == "javascript")
return "javascript:";
// Build this manually instead of using prePath to avoid including the userPass portion.
realm = uri.scheme + "://" + uri.displayHostPort;
} catch (e) {
// bug 159484 - disallow url types that don't support a hostPort.
// (although we handle "javascript:..." as a special case above.)
log("Couldn't parse origin for", uriString, e);
realm = null;
}
return realm;
},
_getActionOrigin(form) {
var uriString = form.action;
// A blank or missing action submits to where it came from.
if (uriString == "")
uriString = form.baseURI; // ala bug 297761
return this._getPasswordOrigin(uriString, true);
},
};
// nsIAutoCompleteResult implementation
function UserAutoCompleteResult(aSearchString, matchingLogins, {isSecure, messageManager, isPasswordField}) {
function loginSort(a, b) {
var userA = a.username.toLowerCase();
var userB = b.username.toLowerCase();
if (userA < userB)
return -1;
if (userA > userB)
return 1;
return 0;
}
function findDuplicates(loginList) {
let seen = new Set();
let duplicates = new Set();
for (let login of loginList) {
if (seen.has(login.username)) {
duplicates.add(login.username);
}
seen.add(login.username);
}
return duplicates;
}
this._showInsecureFieldWarning = (!isSecure && LoginHelper.showInsecureFieldWarning) ? 1 : 0;
this.searchString = aSearchString;
this.logins = matchingLogins.sort(loginSort);
this.matchCount = matchingLogins.length + this._showInsecureFieldWarning;
this._messageManager = messageManager;
this._stringBundle = Services.strings.createBundle("chrome://passwordmgr/locale/passwordmgr.properties");
this._dateAndTimeFormatter = new Services.intl.DateTimeFormat(undefined, { dateStyle: "medium" });
this._isPasswordField = isPasswordField;
this._duplicateUsernames = findDuplicates(matchingLogins);
if (this.matchCount > 0) {
this.searchResult = Ci.nsIAutoCompleteResult.RESULT_SUCCESS;
this.defaultIndex = 0;
}
}
UserAutoCompleteResult.prototype = {
QueryInterface: ChromeUtils.generateQI([Ci.nsIAutoCompleteResult,
Ci.nsISupportsWeakReference]),
// private
logins: null,
// Allow autoCompleteSearch to get at the JS object so it can
// modify some readonly properties for internal use.
get wrappedJSObject() {
return this;
},
// Interfaces from idl...
searchString: null,
searchResult: Ci.nsIAutoCompleteResult.RESULT_NOMATCH,
defaultIndex: -1,
errorDescription: "",
matchCount: 0,
getValueAt(index) {
if (index < 0 || index >= this.matchCount) {
throw new Error("Index out of range.");
}
if (this._showInsecureFieldWarning && index === 0) {
return "";
}
let selectedLogin = this.logins[index - this._showInsecureFieldWarning];
return this._isPasswordField ? selectedLogin.password : selectedLogin.username;
},
getLabelAt(index) {
if (index < 0 || index >= this.matchCount) {
throw new Error("Index out of range.");
}
let getLocalizedString = (key, formatArgs = null) => {
if (formatArgs) {
return this._stringBundle.formatStringFromName(key, formatArgs, formatArgs.length);
}
return this._stringBundle.GetStringFromName(key);
};
if (this._showInsecureFieldWarning && index === 0) {
let learnMoreString = getLocalizedString("insecureFieldWarningLearnMore");
return getLocalizedString("insecureFieldWarningDescription2", [learnMoreString]);
}
let login = this.logins[index - this._showInsecureFieldWarning];
let username = login.username;
// If login is empty or duplicated we want to append a modification date to it.
if (!username || this._duplicateUsernames.has(username)) {
if (!username) {
username = getLocalizedString("noUsername");
}
let meta = login.QueryInterface(Ci.nsILoginMetaInfo);
let time = this._dateAndTimeFormatter.format(new Date(meta.timePasswordChanged));
username = getLocalizedString("loginHostAge", [username, time]);
}
return username;
},
getCommentAt(index) {
return "";
},
getStyleAt(index) {
if (index == 0 && this._showInsecureFieldWarning) {
return "insecureWarning";
}
return "login";
},
getImageAt(index) {
return "";
},
getFinalCompleteValueAt(index) {
return this.getValueAt(index);
},
removeValueAt(index, removeFromDB) {
if (index < 0 || index >= this.matchCount) {
throw new Error("Index out of range.");
}
if (this._showInsecureFieldWarning && index === 0) {
// Ignore the warning message item.
return;
}
if (this._showInsecureFieldWarning) {
index--;
}
var [removedLogin] = this.logins.splice(index, 1);
this.matchCount--;
if (this.defaultIndex > this.logins.length)
this.defaultIndex--;
if (removeFromDB) {
if (this._messageManager) {
let vanilla = LoginHelper.loginToVanillaObject(removedLogin);
this._messageManager.sendAsyncMessage("RemoteLogins:removeLogin",
{ login: vanilla });
} else {
Services.logins.removeLogin(removedLogin);
}
}
},
};
/**
* A factory to generate FormLike objects that represent a set of login fields
* which aren't necessarily marked up with a <form> element.
*/
var LoginFormFactory = {
/**
* Create a LoginForm object from a <form>.
*
* @param {HTMLFormElement} aForm
* @return {LoginForm}
* @throws Error if aForm isn't an HTMLFormElement
*/
createFromForm(aForm) {
let formLike = FormLikeFactory.createFromForm(aForm);
formLike.action = LoginUtils._getActionOrigin(aForm);
let state = LoginManagerContent.stateForDocument(formLike.ownerDocument);
state.loginFormRootElements.add(formLike.rootElement);
log("adding", formLike.rootElement, "to loginFormRootElements for", formLike.ownerDocument);
LoginManagerContent._formLikeByRootElement.set(formLike.rootElement, formLike);
return formLike;
},
/**
* Create a LoginForm object from a password or username field.
*
* If the field is in a <form>, construct the LoginForm from the form.
* Otherwise, create a LoginForm with a rootElement (wrapper) according to
* heuristics. Currently all <input> not in a <form> are one LoginForm but this
* shouldn't be relied upon as the heuristics may change to detect multiple
* "forms" (e.g. registration and login) on one page with a <form>.
*
* Note that two LoginForms created from the same field won't return the same LoginForm object.
* Use the `rootElement` property on the LoginForm as a key instead.
*
* @param {HTMLInputElement} aField - a password or username field in a document
* @return {LoginForm}
* @throws Error if aField isn't a password or username field in a document
*/
createFromField(aField) {
if (ChromeUtils.getClassName(aField) !== "HTMLInputElement" ||
(aField.type != "password" && !LoginHelper.isUsernameFieldType(aField)) ||
!aField.ownerDocument) {
throw new Error("createFromField requires a password or username field in a document");
}
if (aField.form) {
return this.createFromForm(aField.form);
}
let formLike = FormLikeFactory.createFromField(aField);
formLike.action = LoginUtils._getPasswordOrigin(aField.ownerDocument.baseURI);
log("Created non-form FormLike for rootElement:", aField.ownerDocument.documentElement);
let state = LoginManagerContent.stateForDocument(formLike.ownerDocument);
state.loginFormRootElements.add(formLike.rootElement);
log("adding", formLike.rootElement, "to loginFormRootElements for", formLike.ownerDocument);
LoginManagerContent._formLikeByRootElement.set(formLike.rootElement, formLike);
return formLike;
},
};
Ссылка в новой задаче Показать git blame Копировать постоянную ссылку