home *** CD-ROM | disk | FTP | other *** search
Text File | 2008-08-20 | 43.0 KB | 1,236 lines |
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is mozilla.org code.
- *
- * The Initial Developer of the Original Code is Mozilla Corporation.
- * Portions created by the Initial Developer are Copyright (C) 2007
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- * Justin Dolske <dolske@mozilla.com> (original author)
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either the GNU General Public License Version 2 or later (the "GPL"), or
- * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
-
-
- const Cc = Components.classes;
- const Ci = Components.interfaces;
-
- Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
-
- function LoginManager() {
- this.init();
- }
-
- LoginManager.prototype = {
-
- classDescription: "LoginManager",
- contractID: "@mozilla.org/login-manager;1",
- classID: Components.ID("{cb9e0de8-3598-4ed7-857b-827f011ad5d8}"),
- QueryInterface : XPCOMUtils.generateQI([Ci.nsILoginManager,
- Ci.nsISupportsWeakReference]),
-
-
- /* ---------- private memebers ---------- */
-
-
- __logService : null, // Console logging service, used for debugging.
- get _logService() {
- if (!this.__logService)
- this.__logService = Cc["@mozilla.org/consoleservice;1"].
- getService(Ci.nsIConsoleService);
- return this.__logService;
- },
-
-
- __ioService: null, // IO service for string -> nsIURI conversion
- get _ioService() {
- if (!this.__ioService)
- this.__ioService = Cc["@mozilla.org/network/io-service;1"].
- getService(Ci.nsIIOService);
- return this.__ioService;
- },
-
-
- __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;
- },
-
-
- __storage : null, // Storage component which contains the saved logins
- get _storage() {
- if (!this.__storage) {
-
- var contractID = "@mozilla.org/login-manager/storage/legacy;1";
- try {
- var catMan = Cc["@mozilla.org/categorymanager;1"].
- getService(Ci.nsICategoryManager);
- contractID = catMan.getCategoryEntry("login-manager-storage",
- "nsILoginManagerStorage");
- this.log("Found alternate nsILoginManagerStorage with " +
- "contract ID: " + contractID);
- } catch (e) {
- this.log("No alternate nsILoginManagerStorage registered");
- }
-
- this.__storage = Cc[contractID].
- createInstance(Ci.nsILoginManagerStorage);
- try {
- this.__storage.init();
- } catch (e) {
- this.log("Initialization of storage component failed: " + e);
- this.__storage = null;
- }
- }
-
- return this.__storage;
- },
-
- _prefBranch : null, // Preferences service
- _nsLoginInfo : null, // Constructor for nsILoginInfo implementation
-
- _remember : true, // mirrors signon.rememberSignons preference
- _debug : false, // mirrors signon.debug
-
-
- /*
- * init
- *
- * Initialize the Login Manager. Automatically called when service
- * is created.
- *
- * Note: Service created in /browser/base/content/browser.js,
- * delayedStartup()
- */
- init : function () {
-
- // Cache references to current |this| in utility objects
- this._webProgressListener._domEventListener = this._domEventListener;
- this._webProgressListener._pwmgr = this;
- this._domEventListener._pwmgr = this;
- this._observer._pwmgr = this;
-
- // Preferences. Add observer so we get notified of changes.
- this._prefBranch = Cc["@mozilla.org/preferences-service;1"].
- getService(Ci.nsIPrefService).getBranch("signon.");
- this._prefBranch.QueryInterface(Ci.nsIPrefBranch2);
- this._prefBranch.addObserver("", this._observer, false);
-
- // Get current preference values.
- this._debug = this._prefBranch.getBoolPref("debug");
-
- this._remember = this._prefBranch.getBoolPref("rememberSignons");
-
-
- // Get constructor for nsILoginInfo
- this._nsLoginInfo = new Components.Constructor(
- "@mozilla.org/login-manager/loginInfo;1", Ci.nsILoginInfo);
-
-
- // Form submit observer checks forms for new logins and pw changes.
- var observerService = Cc["@mozilla.org/observer-service;1"].
- getService(Ci.nsIObserverService);
- observerService.addObserver(this._observer, "earlyformsubmit", false);
- observerService.addObserver(this._observer, "xpcom-shutdown", false);
-
- // WebProgressListener for getting notification of new doc loads.
- var progress = Cc["@mozilla.org/docloaderservice;1"].
- getService(Ci.nsIWebProgress);
- progress.addProgressListener(this._webProgressListener,
- Ci.nsIWebProgress.NOTIFY_STATE_DOCUMENT);
-
-
- },
-
-
- /*
- * log
- *
- * Internal function for logging debug messages to the Error Console window
- */
- log : function (message) {
- if (!this._debug)
- return;
- dump("Login Manager: " + message + "\n");
- this._logService.logStringMessage("Login Manager: " + message);
- },
-
-
- /* ---------- Utility objects ---------- */
-
-
- /*
- * _observer object
- *
- * Internal utility object, implements the nsIObserver interface.
- * Used to receive notification for: form submission, preference changes.
- */
- _observer : {
- _pwmgr : null,
-
- QueryInterface : XPCOMUtils.generateQI([Ci.nsIObserver,
- Ci.nsIFormSubmitObserver,
- Ci.nsISupportsWeakReference]),
-
-
- // nsFormSubmitObserver
- notify : function (formElement, aWindow, actionURI) {
- this._pwmgr.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 {
- this._pwmgr._onFormSubmit(formElement);
- } catch (e) {
- this._pwmgr.log("Caught error in onFormSubmit: " + e);
- }
-
- return true; // Always return true, or form submit will be canceled.
- },
-
- // nsObserver
- observe : function (subject, topic, data) {
-
- if (topic == "nsPref:changed") {
- var prefName = data;
- this._pwmgr.log("got change to " + prefName + " preference");
-
- if (prefName == "debug") {
- this._pwmgr._debug =
- this._pwmgr._prefBranch.getBoolPref("debug");
- } else if (prefName == "rememberSignons") {
- this._pwmgr._remember =
- this._pwmgr._prefBranch.getBoolPref("rememberSignons");
- } else {
- this._pwmgr.log("Oops! Pref not handled, change ignored.");
- }
- } else if (topic == "xpcom-shutdown") {
- for (let i in this._pwmgr) {
- try {
- this._pwmgr[i] = null;
- } catch(ex) {}
- }
- this._pwmgr = null;
- } else {
- this._pwmgr.log("Oops! Unexpected notification: " + topic);
- }
- }
- },
-
-
- /*
- * _webProgressListener object
- *
- * Internal utility object, implements nsIWebProgressListener interface.
- * This is attached to the document loader service, so we get
- * notifications about all page loads.
- */
- _webProgressListener : {
- _pwmgr : null,
- _domEventListener : null,
-
- QueryInterface : XPCOMUtils.generateQI([Ci.nsIWebProgressListener,
- Ci.nsISupportsWeakReference]),
-
-
- onStateChange : function (aWebProgress, aRequest,
- aStateFlags, aStatus) {
-
- // STATE_START is too early, doc is still the old page.
- if (!(aStateFlags & Ci.nsIWebProgressListener.STATE_TRANSFERRING))
- return;
-
- if (!this._pwmgr._remember)
- return;
-
- var domWin = aWebProgress.DOMWindow;
- var domDoc = domWin.document;
-
- // Only process things which might have HTML forms.
- if (!(domDoc instanceof Ci.nsIDOMHTMLDocument))
- return;
-
- this._pwmgr.log("onStateChange accepted: req = " +
- (aRequest ? aRequest.name : "(null)") +
- ", flags = 0x" + aStateFlags.toString(16));
-
- // Fastback doesn't fire DOMContentLoaded, so process forms now.
- if (aStateFlags & Ci.nsIWebProgressListener.STATE_RESTORING) {
- this._pwmgr.log("onStateChange: restoring document");
- return this._pwmgr._fillDocument(domDoc);
- }
-
- // Add event listener to process page when DOM is complete.
- domDoc.addEventListener("DOMContentLoaded",
- this._domEventListener, false);
- return;
- },
-
- // stubs for the nsIWebProgressListener interfaces which we don't use.
- onProgressChange : function() { throw "Unexpected onProgressChange"; },
- onLocationChange : function() { throw "Unexpected onLocationChange"; },
- onStatusChange : function() { throw "Unexpected onStatusChange"; },
- onSecurityChange : function() { throw "Unexpected onSecurityChange"; }
- },
-
-
- /*
- * _domEventListener object
- *
- * Internal utility object, implements nsIDOMEventListener
- * Used to catch certain DOM events needed to properly implement form fill.
- */
- _domEventListener : {
- _pwmgr : null,
-
- QueryInterface : XPCOMUtils.generateQI([Ci.nsIDOMEventListener,
- Ci.nsISupportsWeakReference]),
-
-
- handleEvent : function (event) {
- this._pwmgr.log("domEventListener: got event " + event.type);
-
- var doc, inputElement;
- switch (event.type) {
- case "DOMContentLoaded":
- doc = event.target;
- this._pwmgr._fillDocument(doc);
- return;
-
- case "DOMAutoComplete":
- case "blur":
- inputElement = event.target;
- this._pwmgr._fillPassword(inputElement);
- return;
-
- default:
- this._pwmgr.log("Oops! This event unexpected.");
- return;
- }
- }
- },
-
-
-
-
- /* ---------- Primary Public interfaces ---------- */
-
-
-
-
- /*
- * addLogin
- *
- * Add a new login to login storage.
- */
- addLogin : function (login) {
- // Sanity check the login
- if (login.hostname == null || login.hostname.length == 0)
- throw "Can't add a login with a null or empty hostname.";
-
- // For logins w/o a username, set to "", not null.
- if (login.username == null)
- throw "Can't add a login with a null username.";
-
- if (login.password == null || login.password.length == 0)
- throw "Can't add a login with a null or empty password.";
-
- if (login.formSubmitURL || login.formSubmitURL == "") {
- // We have a form submit URL. Can't have a HTTP realm.
- if (login.httpRealm != null)
- throw "Can't add a login with both a httpRealm and formSubmitURL.";
- } else if (login.httpRealm) {
- // We have a HTTP realm. Can't have a form submit URL.
- if (login.formSubmitURL != null)
- throw "Can't add a login with both a httpRealm and formSubmitURL.";
- } else {
- // Need one or the other!
- throw "Can't add a login without a httpRealm or formSubmitURL.";
- }
-
-
- // Look for an existing entry.
- var logins = this.findLogins({}, login.hostname, login.formSubmitURL,
- login.httpRealm);
-
- if (logins.some(function(l) login.matches(l, true)))
- throw "This login already exists.";
-
- this.log("Adding login: " + login);
- return this._storage.addLogin(login);
- },
-
-
- /*
- * removeLogin
- *
- * Remove the specified login from the stored logins.
- */
- removeLogin : function (login) {
- this.log("Removing login: " + login);
- return this._storage.removeLogin(login);
- },
-
-
- /*
- * modifyLogin
- *
- * Change the specified login to match the new login.
- */
- modifyLogin : function (oldLogin, newLogin) {
- this.log("Modifying oldLogin: " + oldLogin + " newLogin: " + newLogin);
- return this._storage.modifyLogin(oldLogin, newLogin);
- },
-
-
- /*
- * getAllLogins
- *
- * Get a dump of all stored logins. Used by the login manager UI.
- *
- * |count| is only needed for XPCOM.
- *
- * Returns an array of logins. If there are no logins, the array is empty.
- */
- getAllLogins : function (count) {
- this.log("Getting a list of all logins");
- return this._storage.getAllLogins(count);
- },
-
-
- /*
- * removeAllLogins
- *
- * Remove all stored logins.
- */
- removeAllLogins : function () {
- this.log("Removing all logins");
- this._storage.removeAllLogins();
- },
-
- /*
- * getAllDisabledHosts
- *
- * Get a list of all hosts for which logins are disabled.
- *
- * |count| is only needed for XPCOM.
- *
- * Returns an array of disabled logins. If there are no disabled logins,
- * the array is empty.
- */
- getAllDisabledHosts : function (count) {
- this.log("Getting a list of all disabled hosts");
- return this._storage.getAllDisabledHosts(count);
- },
-
-
- /*
- * findLogins
- *
- * Search for the known logins for entries matching the specified criteria.
- */
- findLogins : function (count, hostname, formSubmitURL, httpRealm) {
- this.log("Searching for logins matching host: " + hostname +
- ", formSubmitURL: " + formSubmitURL + ", httpRealm: " + httpRealm);
-
- return this._storage.findLogins(count, hostname, formSubmitURL,
- httpRealm);
- },
-
-
- /*
- * countLogins
- *
- * Search for the known logins for entries matching the specified criteria,
- * returns only the count.
- */
- countLogins : function (hostname, formSubmitURL, httpRealm) {
- this.log("Counting logins matching host: " + hostname +
- ", formSubmitURL: " + formSubmitURL + ", httpRealm: " + httpRealm);
-
- return this._storage.countLogins(hostname, formSubmitURL, httpRealm);
- },
-
-
- /*
- * getLoginSavingEnabled
- *
- * Check to see if user has disabled saving logins for the host.
- */
- getLoginSavingEnabled : function (host) {
- this.log("Checking if logins to " + host + " can be saved.");
- if (!this._remember)
- return false;
-
- return this._storage.getLoginSavingEnabled(host);
- },
-
-
- /*
- * setLoginSavingEnabled
- *
- * Enable or disable storing logins for the specified host.
- */
- setLoginSavingEnabled : function (hostname, enabled) {
- // Nulls won't round-trip with getAllDisabledHosts().
- if (hostname.indexOf("\0") != -1)
- throw "Invalid hostname";
-
- this.log("Saving logins for " + hostname + " enabled? " + enabled);
- return this._storage.setLoginSavingEnabled(hostname, enabled);
- },
-
-
- /*
- * autoCompleteSearch
- *
- * Yuck. This is called directly by satchel:
- * nsFormFillController::StartSearch()
- * [toolkit/components/satchel/src/nsFormFillController.cpp]
- *
- * We really ought to have a simple way for code to register an
- * auto-complete provider, and not have satchel calling pwmgr directly.
- */
- autoCompleteSearch : function (aSearchString, aPreviousResult, aElement) {
- // aPreviousResult & aResult are nsIAutoCompleteResult,
- // aElement is nsIDOMHTMLInputElement
-
- if (!this._remember)
- return false;
-
- this.log("AutoCompleteSearch invoked. Search is: " + aSearchString);
-
- var result = null;
-
- if (aPreviousResult) {
- this.log("Using previous autocomplete result");
- result = aPreviousResult;
-
- // We have a list of results for a shorter search string, so just
- // filter them further based on the new search string.
- // Count backwards, because result.matchCount is decremented
- // when we remove an entry.
- for (var i = result.matchCount - 1; i >= 0; i--) {
- var match = result.getValueAt(i);
-
- // Remove results that are too short, or have different prefix.
- if (aSearchString.length > match.length ||
- aSearchString.toLowerCase() !=
- match.substr(0, aSearchString.length).toLowerCase())
- {
- this.log("Removing autocomplete entry '" + match + "'");
- result.removeValueAt(i, false);
- }
- }
- } else {
- this.log("Creating new autocomplete search result.");
-
- var doc = aElement.ownerDocument;
- var origin = this._getPasswordOrigin(doc.documentURI);
- var actionOrigin = this._getActionOrigin(aElement.form);
-
- var logins = this.findLogins({}, origin, actionOrigin, null);
- var matchingLogins = [];
-
- for (i = 0; i < logins.length; i++) {
- var username = logins[i].username.toLowerCase();
- if (aSearchString.length <= username.length &&
- aSearchString.toLowerCase() ==
- username.substr(0, aSearchString.length))
- {
- matchingLogins.push(logins[i]);
- }
- }
- this.log(matchingLogins.length + " autocomplete logins avail.");
- result = new UserAutoCompleteResult(aSearchString, matchingLogins);
- }
-
- return result;
- },
-
-
-
-
- /* ------- Internal methods / callbacks for document integration ------- */
-
-
-
-
- /*
- * _getPasswordFields
- *
- * Returns an 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.
- *
- * skipEmptyFields can be set to ignore password fields with no value.
- */
- _getPasswordFields : function (form, skipEmptyFields) {
- // Locate the password fields in the form.
- var pwFields = [];
- for (var i = 0; i < form.elements.length; i++) {
- if (form.elements[i].type != "password")
- continue;
-
- if (skipEmptyFields && !form.elements[i].value)
- continue;
-
- pwFields[pwFields.length] = {
- index : i,
- element : form.elements[i]
- };
- }
-
- // If too few or too many fields, bail out.
- if (pwFields.length == 0) {
- this.log("(form ignored -- no password fields.)");
- return null;
- } else if (pwFields.length > 3) {
- this.log("(form ignored -- too many password fields. [got " +
- pwFields.length + "])");
- return null;
- }
-
- return pwFields;
- },
-
-
- /*
- * _getFormFields
- *
- * Returns the username and password fields found in the form.
- * Can handle complex forms by trying to figure out what the
- * relevant fields are.
- *
- * Returns: [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.
- */
- _getFormFields : function (form, isSubmission) {
- var usernameField = null;
-
- // 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.
- var pwFields = this._getPasswordFields(form, isSubmission);
- if (!pwFields)
- return [null, null, null];
-
-
- // Locate the username field in the form by searching backwards
- // from the first passwordfield, 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--) {
- if (form.elements[i].type == "text") {
- usernameField = form.elements[i];
- break;
- }
- }
-
- if (!usernameField)
- this.log("(form -- no username field found)");
-
-
- // 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)
- return [usernameField, pwFields[0].element, 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.
- this.log("(form ignored -- all 3 pw fields differ)");
- return [null, null, null];
- }
- } else { // pwFields.length == 2
- if (pw1 == pw2) {
- // 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;
- }
- }
-
- return [usernameField, newPasswordField, oldPasswordField];
- },
-
-
- /*
- * _isAutoCompleteDisabled
- *
- * Returns true if the page requests autocomplete be disabled for the
- * specified form input.
- */
- _isAutocompleteDisabled : function (element) {
- if (element && element.hasAttribute("autocomplete") &&
- element.getAttribute("autocomplete").toLowerCase() == "off")
- return true;
-
- return false;
- },
-
- /*
- * _onFormSubmit
- *
- * Called by the 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.
- */
- _onFormSubmit : function (form) {
-
- // local helper function
- function getPrompter(aWindow) {
- var prompterSvc = Cc["@mozilla.org/login-manager/prompter;1"].
- createInstance(Ci.nsILoginManagerPrompter);
- prompterSvc.init(aWindow);
- return prompterSvc;
- }
-
- var doc = form.ownerDocument;
- var win = doc.defaultView;
-
- // If password saving is disabled (globally or for host), bail out now.
- if (!this._remember)
- return;
-
- var hostname = this._getPasswordOrigin(doc.documentURI);
- var formSubmitURL = this._getActionOrigin(form)
- if (!this.getLoginSavingEnabled(hostname)) {
- this.log("(form submission ignored -- saving is " +
- "disabled for: " + hostname + ")");
- return;
- }
-
-
- // Get the appropriate fields from the form.
- var [usernameField, newPasswordField, oldPasswordField] =
- this._getFormFields(form, true);
-
- // 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.
- if (this._isAutocompleteDisabled(form) ||
- this._isAutocompleteDisabled(usernameField) ||
- this._isAutocompleteDisabled(newPasswordField) ||
- this._isAutocompleteDisabled(oldPasswordField)) {
- this.log("(form submission ignored -- autocomplete=off found)");
- return;
- }
-
-
- var formLogin = new this._nsLoginInfo();
- formLogin.init(hostname, formSubmitURL, null,
- (usernameField ? usernameField.value : ""),
- newPasswordField.value,
- (usernameField ? usernameField.name : ""),
- newPasswordField.name);
-
- // If we didn't find a username field, but seem to be changing a
- // password, allow the user to select from a list of applicable
- // logins to update the password for.
- if (!usernameField && oldPasswordField) {
-
- var logins = this.findLogins({}, hostname, formSubmitURL, null);
-
- if (logins.length == 0) {
- // Could prompt to save this as a new password-only login.
- // This seems uncommon, and might be wrong, so ignore.
- this.log("(no logins for this host -- pwchange ignored)");
- return;
- }
-
- var prompter = getPrompter(win);
-
- if (logins.length == 1) {
- var oldLogin = logins[0];
- formLogin.username = oldLogin.username;
- formLogin.usernameField = oldLogin.usernameField;
-
- prompter.promptToChangePassword(oldLogin, formLogin);
- } else {
- prompter.promptToChangePasswordWithUsernames(
- logins, logins.length, formLogin);
- }
-
- return;
- }
-
-
- // Look for an existing login that matches the form login.
- var existingLogin = null;
- var logins = this.findLogins({}, hostname, formSubmitURL, null);
-
- for (var i = 0; i < logins.length; i++) {
- var same, login = logins[i];
-
- // If one login has a username but the other doesn't, ignore
- // the username when comparing and only match if they have the
- // same password. Otherwise, compare the logins and match even
- // if the passwords differ.
- if (!login.username && formLogin.username) {
- var restoreMe = formLogin.username;
- formLogin.username = "";
- same = formLogin.matches(login);
- formLogin.username = restoreMe;
- } else if (!formLogin.username && login.username) {
- formLogin.username = login.username;
- same = formLogin.matches(login);
- formLogin.username = ""; // we know it's always blank.
- } else {
- same = formLogin.matches(login, true);
- }
-
- if (same) {
- existingLogin = login;
- break;
- }
- }
-
- if (existingLogin) {
- this.log("Found an existing login matching this form submission");
-
- /*
- * Change password if needed.
- *
- * If the login has a username, change the password w/o prompting
- * (because we can be fairly sure there's only one password
- * associated with the username). But for logins without a
- * username, ask the user... Some sites use a password-only "login"
- * in different contexts (enter your PIN, answer a security
- * question, etc), and without a username we can't be sure if
- * modifying an existing login is the right thing to do.
- */
- if (existingLogin.password != formLogin.password) {
- if (formLogin.username) {
- this.log("...Updating password for existing login.");
- this.modifyLogin(existingLogin, formLogin);
- } else {
- this.log("...passwords differ, prompting to change.");
- prompter = getPrompter(win);
- prompter.promptToChangePassword(existingLogin, formLogin);
- }
- }
-
- return;
- }
-
-
- // Prompt user to save login (via dialog or notification bar)
- prompter = getPrompter(win);
- prompter.promptToSavePassword(formLogin);
- },
-
-
- /*
- * _getPasswordOrigin
- *
- * Get the parts of the URL we want for identification.
- */
- _getPasswordOrigin : function (uriString, allowJS) {
- var realm = "";
- try {
- var uri = this._ioService.newURI(uriString, null, null);
-
- if (allowJS && uri.scheme == "javascript")
- return "javascript:"
-
- realm = uri.scheme + "://" + uri.host;
-
- // If the URI explicitly specified a port, only include it when
- // it's not the default. (We never want "http://foo.com:80")
- var port = uri.port;
- if (port != -1) {
- var handler = this._ioService.getProtocolHandler(uri.scheme);
- if (port != handler.defaultPort)
- realm += ":" + port;
- }
-
- } catch (e) {
- // bug 159484 - disallow url types that don't support a hostPort.
- // (although we handle "javascript:..." as a special case above.)
- this.log("Couldn't parse origin for " + uriString);
- realm = null;
- }
-
- return realm;
- },
-
- _getActionOrigin : function (form) {
- var uriString = form.action;
-
- // A blank or mission action submits to where it came from.
- if (uriString == "")
- uriString = form.baseURI; // ala bug 297761
-
- return this._getPasswordOrigin(uriString, true);
- },
-
-
- /*
- * _fillDocument
- *
- * Called when a page has loaded. For each form in the document,
- * we check to see if it can be filled with a stored login.
- */
- _fillDocument : function (doc) {
- var forms = doc.forms;
- if (!forms || forms.length == 0)
- return;
-
- var formOrigin = this._getPasswordOrigin(doc.documentURI);
-
- // If there are no logins for this site, bail out now.
- if (!this.countLogins(formOrigin, "", null))
- return;
-
- this.log("fillDocument processing " + forms.length +
- " forms on " + doc.documentURI);
-
- var autofillForm = this._prefBranch.getBoolPref("autofillForms");
- var previousActionOrigin = null;
-
- for (var i = 0; i < forms.length; i++) {
- var form = forms[i];
-
- // 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);
-
- // Need a valid password field to do anything.
- if (passwordField == null)
- continue;
-
-
- // Only the actionOrigin might be changing, so if it's the same
- // as the last form on the page we can reuse the same logins.
- var actionOrigin = this._getActionOrigin(form);
- if (actionOrigin != previousActionOrigin) {
- var foundLogins =
- this.findLogins({}, formOrigin, actionOrigin, null);
-
- this.log("form[" + i + "]: found " + foundLogins.length +
- " matching logins.");
-
- previousActionOrigin = actionOrigin;
- } else {
- this.log("form[" + i + "]: reusing logins from last form.");
- }
-
-
- // 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;
-
- logins = foundLogins.filter(function (l) {
- var fit = (l.username.length <= maxUsernameLen &&
- l.password.length <= maxPasswordLen);
- if (!fit)
- this.log("Ignored " + l.username + " login: won't fit");
-
- return fit;
- }, this);
-
-
- // Nothing to do if we have no matching logins available.
- if (logins.length == 0)
- continue;
-
-
- // 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.
- if (usernameField)
- this._attachToInput(usernameField);
-
- // If the form has an autocomplete=off attribute in play, don't
- // fill in the login automatically. We check this after attaching
- // the autocomplete stuff to the username field, so the user can
- // still manually select a login to be filled in.
- var isFormDisabled = false;
- if (this._isAutocompleteDisabled(form) ||
- this._isAutocompleteDisabled(usernameField) ||
- this._isAutocompleteDisabled(passwordField)) {
-
- isFormDisabled = true;
- this.log("form[" + i + "]: not filled, has autocomplete=off");
- }
-
- if (autofillForm && !isFormDisabled) {
-
- if (usernameField && usernameField.value) {
- // If username was specified in the form, only fill in the
- // password if we find a matching login.
-
- var username = usernameField.value;
-
- var matchingLogin;
- var found = logins.some(function(l) {
- matchingLogin = l;
- return (l.username == username);
- });
- if (found)
- passwordField.value = matchingLogin.password;
- else
- this.log("Password not filled. None of the stored " +
- "logins match the username already present.");
-
- } else if (usernameField && logins.length == 2) {
- // Special case, for sites which have a normal user+pass
- // login *and* a password-only login (eg, a PIN)...
- // When we have a username field and 1 of 2 available
- // logins is password-only, go ahead and prefill the
- // one with a username.
- if (!logins[0].username && logins[1].username) {
- usernameField.value = logins[1].username;
- passwordField.value = logins[1].password;
- } else if (!logins[1].username && logins[0].username) {
- usernameField.value = logins[0].username;
- passwordField.value = logins[0].password;
- }
- } else if (logins.length == 1) {
- if (usernameField)
- usernameField.value = logins[0].username;
- passwordField.value = logins[0].password;
- } else {
- this.log("Multiple logins for form, so not filling any.");
- }
- }
- } // foreach form
- },
-
-
- /*
- * _attachToInput
- *
- * Hooks up autocomplete support to a username field, to allow
- * a user editing the field to select an existing login and have
- * the password field filled in.
- */
- _attachToInput : function (element) {
- this.log("attaching autocomplete stuff");
- element.addEventListener("blur",
- this._domEventListener, false);
- element.addEventListener("DOMAutoComplete",
- this._domEventListener, false);
- this._formFillService.markAsLoginManagerField(element);
- },
-
-
- /*
- * _fillPassword
- *
- * The user has autocompleted a username field, so fill in the password.
- */
- _fillPassword : function (usernameField) {
- this.log("fillPassword autocomplete username: " + usernameField.value);
-
- var form = usernameField.form;
- var doc = form.ownerDocument;
-
- var hostname = this._getPasswordOrigin(doc.documentURI);
- var formSubmitURL = this._getActionOrigin(form)
-
- // Find the password field. We should always have at least one,
- // or else something has gone rather wrong.
- var pwFields = this._getPasswordFields(form, false);
- if (!pwFields) {
- const err = "No password field for autocomplete password fill.";
-
- // We want to know about this even if debugging is disabled.
- if (!this._debug)
- dump(err);
- else
- this.log(err);
-
- return;
- }
-
- // If there are multiple passwords fields, we can't really figure
- // out what each field is for, so just fill out the last field.
- var passwordField = pwFields[0].element;
-
- // Temporary LoginInfo with the info we know.
- var currentLogin = new this._nsLoginInfo();
- currentLogin.init(hostname, formSubmitURL, null,
- usernameField.value, null,
- usernameField.name, passwordField.name);
-
- // Look for a existing login and use its password.
- var match = null;
- var logins = this.findLogins({}, hostname, formSubmitURL, null);
-
- if (!logins.some(function(l) {
- match = l;
- return currentLogin.matches(l, true);
- }))
- {
- this.log("Can't find a login for this autocomplete result.");
- return;
- }
-
- this.log("Found a matching login, filling in password.");
- passwordField.value = match.password;
- }
- }; // end of LoginManager implementation
-
-
-
-
- // nsIAutoCompleteResult implementation
- function UserAutoCompleteResult (aSearchString, matchingLogins) {
- function loginSort(a,b) {
- var userA = a.username.toLowerCase();
- var userB = b.username.toLowerCase();
-
- if (userA < userB)
- return -1;
-
- if (userB > userA)
- return 1;
-
- return 0;
- };
-
- this.searchString = aSearchString;
- this.logins = matchingLogins.sort(loginSort);
- this.matchCount = matchingLogins.length;
-
- if (this.matchCount > 0) {
- this.searchResult = Ci.nsIAutoCompleteResult.RESULT_SUCCESS;
- this.defaultIndex = 0;
- }
- }
-
- UserAutoCompleteResult.prototype = {
- QueryInterface : XPCOMUtils.generateQI([Ci.nsIAutoCompleteResult,
- Ci.nsISupportsWeakReference]),
-
- // private
- logins : null,
-
- // Interfaces from idl...
- searchString : null,
- searchResult : Ci.nsIAutoCompleteResult.RESULT_NOMATCH,
- defaultIndex : -1,
- errorDescription : "",
- matchCount : 0,
-
- getValueAt : function (index) {
- if (index < 0 || index >= this.logins.length)
- throw "Index out of range.";
-
- return this.logins[index].username;
- },
-
- getCommentAt : function (index) {
- return "";
- },
-
- getStyleAt : function (index) {
- return "";
- },
-
- getImageAt : function (index) {
- return "";
- },
-
- removeValueAt : function (index, removeFromDB) {
- if (index < 0 || index >= this.logins.length)
- throw "Index out of range.";
-
- var [removedLogin] = this.logins.splice(index, 1);
-
- this.matchCount--;
- if (this.defaultIndex > this.logins.length)
- this.defaultIndex--;
-
- if (removeFromDB) {
- var pwmgr = Cc["@mozilla.org/login-manager;1"].
- getService(Ci.nsILoginManager);
- pwmgr.removeLogin(removedLogin);
- }
- },
- };
-
- var component = [LoginManager];
- function NSGetModule (compMgr, fileSpec) {
- return XPCOMUtils.generateModule(component);
- }
-