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1016 lines
35 KiB
JavaScript
1016 lines
35 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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this.EXPORTED_SYMBOLS = [
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"ErrorHandler",
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"SyncScheduler",
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];
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const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
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Cu.import("resource://gre/modules/Log.jsm");
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Cu.import("resource://services-sync/constants.js");
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Cu.import("resource://services-sync/engines.js");
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Cu.import("resource://services-sync/util.js");
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Cu.import("resource://gre/modules/FileUtils.jsm");
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Cu.import("resource://gre/modules/NetUtil.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "Status",
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"resource://services-sync/status.js");
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this.SyncScheduler = function SyncScheduler(service) {
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this.service = service;
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this.init();
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}
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SyncScheduler.prototype = {
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_log: Log.repository.getLogger("Sync.SyncScheduler"),
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_fatalLoginStatus: [LOGIN_FAILED_NO_USERNAME,
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LOGIN_FAILED_NO_PASSWORD,
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LOGIN_FAILED_NO_PASSPHRASE,
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LOGIN_FAILED_INVALID_PASSPHRASE,
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LOGIN_FAILED_LOGIN_REJECTED],
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/**
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* The nsITimer object that schedules the next sync. See scheduleNextSync().
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*/
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syncTimer: null,
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setDefaults: function setDefaults() {
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this._log.trace("Setting SyncScheduler policy values to defaults.");
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let service = Cc["@mozilla.org/weave/service;1"]
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.getService(Ci.nsISupports)
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.wrappedJSObject;
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let part = service.fxAccountsEnabled ? "fxa" : "sync11";
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let prefSDInterval = "scheduler." + part + ".singleDeviceInterval";
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this.singleDeviceInterval = Svc.Prefs.get(prefSDInterval) * 1000;
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this.idleInterval = Svc.Prefs.get("scheduler.idleInterval") * 1000;
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this.activeInterval = Svc.Prefs.get("scheduler.activeInterval") * 1000;
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this.immediateInterval = Svc.Prefs.get("scheduler.immediateInterval") * 1000;
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this.eolInterval = Svc.Prefs.get("scheduler.eolInterval") * 1000;
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// A user is non-idle on startup by default.
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this.idle = false;
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this.hasIncomingItems = false;
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this.clearSyncTriggers();
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},
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// nextSync is in milliseconds, but prefs can't hold that much
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get nextSync() Svc.Prefs.get("nextSync", 0) * 1000,
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set nextSync(value) Svc.Prefs.set("nextSync", Math.floor(value / 1000)),
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get syncInterval() Svc.Prefs.get("syncInterval", this.singleDeviceInterval),
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set syncInterval(value) Svc.Prefs.set("syncInterval", value),
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get syncThreshold() Svc.Prefs.get("syncThreshold", SINGLE_USER_THRESHOLD),
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set syncThreshold(value) Svc.Prefs.set("syncThreshold", value),
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get globalScore() Svc.Prefs.get("globalScore", 0),
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set globalScore(value) Svc.Prefs.set("globalScore", value),
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get numClients() Svc.Prefs.get("numClients", 0),
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set numClients(value) Svc.Prefs.set("numClients", value),
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init: function init() {
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this._log.level = Log.Level[Svc.Prefs.get("log.logger.service.main")];
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this.setDefaults();
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Svc.Obs.add("weave:engine:score:updated", this);
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Svc.Obs.add("network:offline-status-changed", this);
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Svc.Obs.add("weave:service:sync:start", this);
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Svc.Obs.add("weave:service:sync:finish", this);
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Svc.Obs.add("weave:engine:sync:finish", this);
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Svc.Obs.add("weave:engine:sync:error", this);
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Svc.Obs.add("weave:service:login:error", this);
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Svc.Obs.add("weave:service:logout:finish", this);
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Svc.Obs.add("weave:service:sync:error", this);
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Svc.Obs.add("weave:service:backoff:interval", this);
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Svc.Obs.add("weave:service:ready", this);
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Svc.Obs.add("weave:engine:sync:applied", this);
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Svc.Obs.add("weave:service:setup-complete", this);
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Svc.Obs.add("weave:service:start-over", this);
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Svc.Obs.add("FxA:hawk:backoff:interval", this);
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if (Status.checkSetup() == STATUS_OK) {
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Svc.Obs.add("wake_notification", this);
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Svc.Idle.addIdleObserver(this, Svc.Prefs.get("scheduler.idleTime"));
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}
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},
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observe: function observe(subject, topic, data) {
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this._log.trace("Handling " + topic);
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switch(topic) {
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case "weave:engine:score:updated":
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if (Status.login == LOGIN_SUCCEEDED) {
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Utils.namedTimer(this.calculateScore, SCORE_UPDATE_DELAY, this,
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"_scoreTimer");
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}
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break;
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case "network:offline-status-changed":
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// Whether online or offline, we'll reschedule syncs
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this._log.trace("Network offline status change: " + data);
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this.checkSyncStatus();
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break;
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case "weave:service:sync:start":
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// Clear out any potentially pending syncs now that we're syncing
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this.clearSyncTriggers();
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// reset backoff info, if the server tells us to continue backing off,
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// we'll handle that later
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Status.resetBackoff();
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this.globalScore = 0;
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break;
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case "weave:service:sync:finish":
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this.nextSync = 0;
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this.adjustSyncInterval();
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if (Status.service == SYNC_FAILED_PARTIAL && this.requiresBackoff) {
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this.requiresBackoff = false;
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this.handleSyncError();
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return;
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}
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let sync_interval;
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this._syncErrors = 0;
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if (Status.sync == NO_SYNC_NODE_FOUND) {
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this._log.trace("Scheduling a sync at interval NO_SYNC_NODE_FOUND.");
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sync_interval = NO_SYNC_NODE_INTERVAL;
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}
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this.scheduleNextSync(sync_interval);
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break;
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case "weave:engine:sync:finish":
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if (data == "clients") {
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// Update the client mode because it might change what we sync.
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this.updateClientMode();
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}
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break;
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case "weave:engine:sync:error":
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// `subject` is the exception thrown by an engine's sync() method.
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let exception = subject;
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if (exception.status >= 500 && exception.status <= 504) {
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this.requiresBackoff = true;
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}
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break;
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case "weave:service:login:error":
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this.clearSyncTriggers();
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if (Status.login == MASTER_PASSWORD_LOCKED) {
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// Try again later, just as if we threw an error... only without the
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// error count.
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this._log.debug("Couldn't log in: master password is locked.");
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this._log.trace("Scheduling a sync at MASTER_PASSWORD_LOCKED_RETRY_INTERVAL");
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this.scheduleAtInterval(MASTER_PASSWORD_LOCKED_RETRY_INTERVAL);
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} else if (this._fatalLoginStatus.indexOf(Status.login) == -1) {
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// Not a fatal login error, just an intermittent network or server
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// issue. Keep on syncin'.
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this.checkSyncStatus();
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}
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break;
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case "weave:service:logout:finish":
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// Start or cancel the sync timer depending on if
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// logged in or logged out
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this.checkSyncStatus();
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break;
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case "weave:service:sync:error":
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// There may be multiple clients but if the sync fails, client mode
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// should still be updated so that the next sync has a correct interval.
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this.updateClientMode();
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this.adjustSyncInterval();
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this.nextSync = 0;
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this.handleSyncError();
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break;
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case "FxA:hawk:backoff:interval":
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case "weave:service:backoff:interval":
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let requested_interval = subject * 1000;
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this._log.debug("Got backoff notification: " + requested_interval + "ms");
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// Leave up to 25% more time for the back off.
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let interval = requested_interval * (1 + Math.random() * 0.25);
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Status.backoffInterval = interval;
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Status.minimumNextSync = Date.now() + requested_interval;
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this._log.debug("Fuzzed minimum next sync: " + Status.minimumNextSync);
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break;
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case "weave:service:ready":
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// Applications can specify this preference if they want autoconnect
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// to happen after a fixed delay.
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let delay = Svc.Prefs.get("autoconnectDelay");
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if (delay) {
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this.delayedAutoConnect(delay);
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}
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break;
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case "weave:engine:sync:applied":
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let numItems = subject.succeeded;
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this._log.trace("Engine " + data + " successfully applied " + numItems +
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" items.");
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if (numItems) {
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this.hasIncomingItems = true;
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}
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break;
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case "weave:service:setup-complete":
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Services.prefs.savePrefFile(null);
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Svc.Idle.addIdleObserver(this, Svc.Prefs.get("scheduler.idleTime"));
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Svc.Obs.add("wake_notification", this);
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break;
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case "weave:service:start-over":
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this.setDefaults();
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try {
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Svc.Idle.removeIdleObserver(this, Svc.Prefs.get("scheduler.idleTime"));
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} catch (ex if (ex.result == Cr.NS_ERROR_FAILURE)) {
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// In all likelihood we didn't have an idle observer registered yet.
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// It's all good.
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}
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break;
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case "idle":
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this._log.trace("We're idle.");
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this.idle = true;
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// Adjust the interval for future syncs. This won't actually have any
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// effect until the next pending sync (which will happen soon since we
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// were just active.)
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this.adjustSyncInterval();
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break;
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case "active":
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this._log.trace("Received notification that we're back from idle.");
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this.idle = false;
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Utils.namedTimer(function onBack() {
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if (this.idle) {
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this._log.trace("... and we're idle again. " +
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"Ignoring spurious back notification.");
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return;
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}
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this._log.trace("Genuine return from idle. Syncing.");
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// Trigger a sync if we have multiple clients.
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if (this.numClients > 1) {
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this.scheduleNextSync(0);
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}
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}, IDLE_OBSERVER_BACK_DELAY, this, "idleDebouncerTimer");
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break;
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case "wake_notification":
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this._log.debug("Woke from sleep.");
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Utils.nextTick(() => {
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// Trigger a sync if we have multiple clients.
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if (this.numClients > 1) {
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this._log.debug("More than 1 client. Syncing.");
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this.scheduleNextSync(0);
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}
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});
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break;
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}
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},
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adjustSyncInterval: function adjustSyncInterval() {
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if (Status.eol) {
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this._log.debug("Server status is EOL; using eolInterval.");
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this.syncInterval = this.eolInterval;
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return;
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}
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if (this.numClients <= 1) {
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this._log.trace("Adjusting syncInterval to singleDeviceInterval.");
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this.syncInterval = this.singleDeviceInterval;
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return;
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}
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// Only MULTI_DEVICE clients will enter this if statement
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// since SINGLE_USER clients will be handled above.
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if (this.idle) {
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this._log.trace("Adjusting syncInterval to idleInterval.");
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this.syncInterval = this.idleInterval;
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return;
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}
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if (this.hasIncomingItems) {
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this._log.trace("Adjusting syncInterval to immediateInterval.");
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this.hasIncomingItems = false;
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this.syncInterval = this.immediateInterval;
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} else {
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this._log.trace("Adjusting syncInterval to activeInterval.");
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this.syncInterval = this.activeInterval;
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}
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},
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calculateScore: function calculateScore() {
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let engines = [this.service.clientsEngine].concat(this.service.engineManager.getEnabled());
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for (let i = 0;i < engines.length;i++) {
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this._log.trace(engines[i].name + ": score: " + engines[i].score);
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this.globalScore += engines[i].score;
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engines[i]._tracker.resetScore();
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}
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this._log.trace("Global score updated: " + this.globalScore);
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this.checkSyncStatus();
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},
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/**
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* Process the locally stored clients list to figure out what mode to be in
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*/
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updateClientMode: function updateClientMode() {
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// Nothing to do if it's the same amount
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let numClients = this.service.clientsEngine.stats.numClients;
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if (this.numClients == numClients)
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return;
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this._log.debug("Client count: " + this.numClients + " -> " + numClients);
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this.numClients = numClients;
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if (numClients <= 1) {
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this._log.trace("Adjusting syncThreshold to SINGLE_USER_THRESHOLD");
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this.syncThreshold = SINGLE_USER_THRESHOLD;
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} else {
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this._log.trace("Adjusting syncThreshold to MULTI_DEVICE_THRESHOLD");
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this.syncThreshold = MULTI_DEVICE_THRESHOLD;
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}
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this.adjustSyncInterval();
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},
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/**
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* Check if we should be syncing and schedule the next sync, if it's not scheduled
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*/
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checkSyncStatus: function checkSyncStatus() {
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// Should we be syncing now, if not, cancel any sync timers and return
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// if we're in backoff, we'll schedule the next sync.
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let ignore = [kSyncBackoffNotMet, kSyncMasterPasswordLocked];
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let skip = this.service._checkSync(ignore);
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this._log.trace("_checkSync returned \"" + skip + "\".");
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if (skip) {
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this.clearSyncTriggers();
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return;
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}
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// Only set the wait time to 0 if we need to sync right away
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let wait;
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if (this.globalScore > this.syncThreshold) {
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this._log.debug("Global Score threshold hit, triggering sync.");
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wait = 0;
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}
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this.scheduleNextSync(wait);
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},
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/**
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* Call sync() if Master Password is not locked.
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*
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* Otherwise, reschedule a sync for later.
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*/
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syncIfMPUnlocked: function syncIfMPUnlocked() {
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// No point if we got kicked out by the master password dialog.
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if (Status.login == MASTER_PASSWORD_LOCKED &&
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Utils.mpLocked()) {
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this._log.debug("Not initiating sync: Login status is " + Status.login);
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// If we're not syncing now, we need to schedule the next one.
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this._log.trace("Scheduling a sync at MASTER_PASSWORD_LOCKED_RETRY_INTERVAL");
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this.scheduleAtInterval(MASTER_PASSWORD_LOCKED_RETRY_INTERVAL);
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return;
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}
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Utils.nextTick(this.service.sync, this.service);
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},
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/**
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* Set a timer for the next sync
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*/
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scheduleNextSync: function scheduleNextSync(interval) {
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// If no interval was specified, use the current sync interval.
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if (interval == null) {
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interval = this.syncInterval;
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}
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// Ensure the interval is set to no less than the backoff.
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if (Status.backoffInterval && interval < Status.backoffInterval) {
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this._log.trace("Requested interval " + interval +
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" ms is smaller than the backoff interval. " +
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"Using backoff interval " +
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Status.backoffInterval + " ms instead.");
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interval = Status.backoffInterval;
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}
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if (this.nextSync != 0) {
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// There's already a sync scheduled. Don't reschedule if there's already
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// a timer scheduled for sooner than requested.
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let currentInterval = this.nextSync - Date.now();
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this._log.trace("There's already a sync scheduled in " +
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currentInterval + " ms.");
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if (currentInterval < interval && this.syncTimer) {
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this._log.trace("Ignoring scheduling request for next sync in " +
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interval + " ms.");
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return;
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}
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}
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// Start the sync right away if we're already late.
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if (interval <= 0) {
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this._log.trace("Requested sync should happen right away.");
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this.syncIfMPUnlocked();
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return;
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}
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this._log.debug("Next sync in " + interval + " ms.");
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Utils.namedTimer(this.syncIfMPUnlocked, interval, this, "syncTimer");
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// Save the next sync time in-case sync is disabled (logout/offline/etc.)
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this.nextSync = Date.now() + interval;
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},
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/**
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* Incorporates the backoff/retry logic used in error handling and elective
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* non-syncing.
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*/
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scheduleAtInterval: function scheduleAtInterval(minimumInterval) {
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let interval = Utils.calculateBackoff(this._syncErrors,
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MINIMUM_BACKOFF_INTERVAL,
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Status.backoffInterval);
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if (minimumInterval) {
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interval = Math.max(minimumInterval, interval);
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}
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this._log.debug("Starting client-initiated backoff. Next sync in " +
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interval + " ms.");
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this.scheduleNextSync(interval);
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},
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/**
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* Automatically start syncing after the given delay (in seconds).
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*
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* Applications can define the `services.sync.autoconnectDelay` preference
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* to have this called automatically during start-up with the pref value as
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* the argument. Alternatively, they can call it themselves to control when
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* Sync should first start to sync.
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*/
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delayedAutoConnect: function delayedAutoConnect(delay) {
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if (this.service._checkSetup() == STATUS_OK) {
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Utils.namedTimer(this.autoConnect, delay * 1000, this, "_autoTimer");
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}
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},
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autoConnect: function autoConnect() {
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if (this.service._checkSetup() == STATUS_OK && !this.service._checkSync()) {
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// Schedule a sync based on when a previous sync was scheduled.
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// scheduleNextSync() will do the right thing if that time lies in
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// the past.
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this.scheduleNextSync(this.nextSync - Date.now());
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}
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// Once autoConnect is called we no longer need _autoTimer.
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if (this._autoTimer) {
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this._autoTimer.clear();
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}
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},
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_syncErrors: 0,
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/**
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* Deal with sync errors appropriately
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*/
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handleSyncError: function handleSyncError() {
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this._log.trace("In handleSyncError. Error count: " + this._syncErrors);
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this._syncErrors++;
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// Do nothing on the first couple of failures, if we're not in
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// backoff due to 5xx errors.
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if (!Status.enforceBackoff) {
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if (this._syncErrors < MAX_ERROR_COUNT_BEFORE_BACKOFF) {
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this.scheduleNextSync();
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return;
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}
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this._log.debug("Sync error count has exceeded " +
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MAX_ERROR_COUNT_BEFORE_BACKOFF + "; enforcing backoff.");
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Status.enforceBackoff = true;
|
|
}
|
|
|
|
this.scheduleAtInterval();
|
|
},
|
|
|
|
|
|
/**
|
|
* Remove any timers/observers that might trigger a sync
|
|
*/
|
|
clearSyncTriggers: function clearSyncTriggers() {
|
|
this._log.debug("Clearing sync triggers and the global score.");
|
|
this.globalScore = this.nextSync = 0;
|
|
|
|
// Clear out any scheduled syncs
|
|
if (this.syncTimer)
|
|
this.syncTimer.clear();
|
|
},
|
|
|
|
/**
|
|
* Prevent new syncs from starting. This is used by the FxA migration code
|
|
* where we can't afford to have a sync start partway through the migration.
|
|
* To handle the edge-case of a sync starting and not stopping, we store
|
|
* this state in a pref, so on the next startup we remain blocked (and thus
|
|
* sync will never start) so the migration can complete.
|
|
*
|
|
* As a safety measure, we only block for some period of time, and after
|
|
* that it will automatically unblock. This ensures that if things go
|
|
* really pear-shaped and we never end up calling unblockSync() we haven't
|
|
* completely broken the world.
|
|
*/
|
|
blockSync: function(until = null) {
|
|
if (!until) {
|
|
until = Date.now() + DEFAULT_BLOCK_PERIOD;
|
|
}
|
|
// until is specified in ms, but Prefs can't hold that much
|
|
Svc.Prefs.set("scheduler.blocked-until", Math.floor(until / 1000));
|
|
},
|
|
|
|
unblockSync: function() {
|
|
Svc.Prefs.reset("scheduler.blocked-until");
|
|
// the migration code should be ready to roll, so resume normal operations.
|
|
this.checkSyncStatus();
|
|
},
|
|
|
|
get isBlocked() {
|
|
let until = Svc.Prefs.get("scheduler.blocked-until");
|
|
if (until === undefined) {
|
|
return false;
|
|
}
|
|
if (until <= Math.floor(Date.now() / 1000)) {
|
|
// we were previously blocked but the time has expired.
|
|
Svc.Prefs.reset("scheduler.blocked-until");
|
|
return false;
|
|
}
|
|
// we remain blocked.
|
|
return true;
|
|
},
|
|
};
|
|
|
|
const LOG_PREFIX_SUCCESS = "success-";
|
|
const LOG_PREFIX_ERROR = "error-";
|
|
|
|
this.ErrorHandler = function ErrorHandler(service) {
|
|
this.service = service;
|
|
this.init();
|
|
}
|
|
ErrorHandler.prototype = {
|
|
MINIMUM_ALERT_INTERVAL_MSEC: 604800000, // One week.
|
|
|
|
/**
|
|
* Flag that turns on error reporting for all errors, incl. network errors.
|
|
*/
|
|
dontIgnoreErrors: false,
|
|
|
|
/**
|
|
* Flag that indicates if we have already reported a prolonged failure.
|
|
* Once set, we don't report it again, meaning this error is only reported
|
|
* one per run.
|
|
*/
|
|
didReportProlongedError: false,
|
|
|
|
init: function init() {
|
|
Svc.Obs.add("weave:engine:sync:applied", this);
|
|
Svc.Obs.add("weave:engine:sync:error", this);
|
|
Svc.Obs.add("weave:service:login:error", this);
|
|
Svc.Obs.add("weave:service:sync:error", this);
|
|
Svc.Obs.add("weave:service:sync:finish", this);
|
|
|
|
this.initLogs();
|
|
},
|
|
|
|
initLogs: function initLogs() {
|
|
this._log = Log.repository.getLogger("Sync.ErrorHandler");
|
|
this._log.level = Log.Level[Svc.Prefs.get("log.logger.service.main")];
|
|
this._cleaningUpFileLogs = false;
|
|
|
|
let root = Log.repository.getLogger("Sync");
|
|
root.level = Log.Level[Svc.Prefs.get("log.rootLogger")];
|
|
|
|
let formatter = new Log.BasicFormatter();
|
|
let capp = new Log.ConsoleAppender(formatter);
|
|
capp.level = Log.Level[Svc.Prefs.get("log.appender.console")];
|
|
root.addAppender(capp);
|
|
|
|
let dapp = new Log.DumpAppender(formatter);
|
|
dapp.level = Log.Level[Svc.Prefs.get("log.appender.dump")];
|
|
root.addAppender(dapp);
|
|
|
|
let fapp = this._logAppender = new Log.StorageStreamAppender(formatter);
|
|
fapp.level = Log.Level[Svc.Prefs.get("log.appender.file.level")];
|
|
root.addAppender(fapp);
|
|
|
|
// Arrange for the FxA logs to also go to our file.
|
|
Log.repository.getLogger("FirefoxAccounts").addAppender(fapp);
|
|
},
|
|
|
|
observe: function observe(subject, topic, data) {
|
|
this._log.trace("Handling " + topic);
|
|
switch(topic) {
|
|
case "weave:engine:sync:applied":
|
|
if (subject.newFailed) {
|
|
// An engine isn't able to apply one or more incoming records.
|
|
// We don't fail hard on this, but it usually indicates a bug,
|
|
// so for now treat it as sync error (c.f. Service._syncEngine())
|
|
Status.engines = [data, ENGINE_APPLY_FAIL];
|
|
this._log.debug(data + " failed to apply some records.");
|
|
}
|
|
break;
|
|
case "weave:engine:sync:error":
|
|
let exception = subject; // exception thrown by engine's sync() method
|
|
let engine_name = data; // engine name that threw the exception
|
|
|
|
this.checkServerError(exception);
|
|
|
|
Status.engines = [engine_name, exception.failureCode || ENGINE_UNKNOWN_FAIL];
|
|
this._log.debug(engine_name + " failed: " + Utils.exceptionStr(exception));
|
|
break;
|
|
case "weave:service:login:error":
|
|
this.resetFileLog(Svc.Prefs.get("log.appender.file.logOnError"),
|
|
LOG_PREFIX_ERROR);
|
|
|
|
if (this.shouldReportError()) {
|
|
this.notifyOnNextTick("weave:ui:login:error");
|
|
} else {
|
|
this.notifyOnNextTick("weave:ui:clear-error");
|
|
}
|
|
|
|
this.dontIgnoreErrors = false;
|
|
break;
|
|
case "weave:service:sync:error":
|
|
if (Status.sync == CREDENTIALS_CHANGED) {
|
|
this.service.logout();
|
|
}
|
|
|
|
this.resetFileLog(Svc.Prefs.get("log.appender.file.logOnError"),
|
|
LOG_PREFIX_ERROR);
|
|
|
|
if (this.shouldReportError()) {
|
|
this.notifyOnNextTick("weave:ui:sync:error");
|
|
} else {
|
|
this.notifyOnNextTick("weave:ui:sync:finish");
|
|
}
|
|
|
|
this.dontIgnoreErrors = false;
|
|
break;
|
|
case "weave:service:sync:finish":
|
|
this._log.trace("Status.service is " + Status.service);
|
|
|
|
// Check both of these status codes: in the event of a failure in one
|
|
// engine, Status.service will be SYNC_FAILED_PARTIAL despite
|
|
// Status.sync being SYNC_SUCCEEDED.
|
|
// *facepalm*
|
|
if (Status.sync == SYNC_SUCCEEDED &&
|
|
Status.service == STATUS_OK) {
|
|
// Great. Let's clear our mid-sync 401 note.
|
|
this._log.trace("Clearing lastSyncReassigned.");
|
|
Svc.Prefs.reset("lastSyncReassigned");
|
|
}
|
|
|
|
if (Status.service == SYNC_FAILED_PARTIAL) {
|
|
this._log.debug("Some engines did not sync correctly.");
|
|
this.resetFileLog(Svc.Prefs.get("log.appender.file.logOnError"),
|
|
LOG_PREFIX_ERROR);
|
|
|
|
if (this.shouldReportError()) {
|
|
this.dontIgnoreErrors = false;
|
|
this.notifyOnNextTick("weave:ui:sync:error");
|
|
break;
|
|
}
|
|
} else {
|
|
this.resetFileLog(Svc.Prefs.get("log.appender.file.logOnSuccess"),
|
|
LOG_PREFIX_SUCCESS);
|
|
}
|
|
this.dontIgnoreErrors = false;
|
|
this.notifyOnNextTick("weave:ui:sync:finish");
|
|
break;
|
|
}
|
|
},
|
|
|
|
notifyOnNextTick: function notifyOnNextTick(topic) {
|
|
Utils.nextTick(function() {
|
|
this._log.trace("Notifying " + topic +
|
|
". Status.login is " + Status.login +
|
|
". Status.sync is " + Status.sync);
|
|
Svc.Obs.notify(topic);
|
|
}, this);
|
|
},
|
|
|
|
/**
|
|
* Trigger a sync and don't muffle any errors, particularly network errors.
|
|
*/
|
|
syncAndReportErrors: function syncAndReportErrors() {
|
|
this._log.debug("Beginning user-triggered sync.");
|
|
|
|
this.dontIgnoreErrors = true;
|
|
Utils.nextTick(this.service.sync, this.service);
|
|
},
|
|
|
|
/**
|
|
* Finds all logs older than maxErrorAge and deletes them without tying up I/O.
|
|
*/
|
|
cleanupLogs: function cleanupLogs() {
|
|
let direntries = FileUtils.getDir("ProfD", ["weave", "logs"]).directoryEntries;
|
|
let oldLogs = [];
|
|
let index = 0;
|
|
let threshold = Date.now() - 1000 * Svc.Prefs.get("log.appender.file.maxErrorAge");
|
|
|
|
this._log.debug("Log cleanup threshold time: " + threshold);
|
|
while (direntries.hasMoreElements()) {
|
|
let logFile = direntries.getNext().QueryInterface(Ci.nsIFile);
|
|
if (logFile.lastModifiedTime < threshold) {
|
|
this._log.trace(" > Noting " + logFile.leafName +
|
|
" for cleanup (" + logFile.lastModifiedTime + ")");
|
|
oldLogs.push(logFile);
|
|
}
|
|
}
|
|
|
|
// Deletes a file from oldLogs each tick until there are none left.
|
|
let errorHandler = this;
|
|
function deleteFile() {
|
|
if (index >= oldLogs.length) {
|
|
errorHandler._log.debug("Done deleting files.");
|
|
errorHandler._cleaningUpFileLogs = false;
|
|
Svc.Obs.notify("weave:service:cleanup-logs");
|
|
return;
|
|
}
|
|
try {
|
|
let file = oldLogs[index];
|
|
file.remove(false);
|
|
errorHandler._log.trace("Deleted " + file.leafName + ".");
|
|
} catch (ex) {
|
|
errorHandler._log._debug("Encountered error trying to clean up old log file '"
|
|
+ oldLogs[index].leafName + "':"
|
|
+ Utils.exceptionStr(ex));
|
|
}
|
|
index++;
|
|
Utils.nextTick(deleteFile);
|
|
}
|
|
|
|
if (oldLogs.length > 0) {
|
|
this._cleaningUpFileLogs = true;
|
|
Utils.nextTick(deleteFile);
|
|
} else {
|
|
this._log.debug("No logs to clean up.");
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Generate a log file for the sync that just completed
|
|
* and refresh the input & output streams.
|
|
*
|
|
* @param flushToFile
|
|
* the log file to be flushed/reset
|
|
*
|
|
* @param filenamePrefix
|
|
* a value of either LOG_PREFIX_SUCCESS or LOG_PREFIX_ERROR
|
|
* to be used as the log filename prefix
|
|
*/
|
|
resetFileLog: function resetFileLog(flushToFile, filenamePrefix) {
|
|
let inStream = this._logAppender.getInputStream();
|
|
this._logAppender.reset();
|
|
if (flushToFile && inStream) {
|
|
this._log.debug("Flushing file log.");
|
|
try {
|
|
let filename = filenamePrefix + Date.now() + ".txt";
|
|
let file = FileUtils.getFile("ProfD", ["weave", "logs", filename]);
|
|
let outStream = FileUtils.openFileOutputStream(file);
|
|
|
|
this._log.trace("Beginning stream copy to " + file.leafName + ": " +
|
|
Date.now());
|
|
NetUtil.asyncCopy(inStream, outStream, function onCopyComplete() {
|
|
this._log.trace("onCopyComplete: " + Date.now());
|
|
this._log.trace("Output file timestamp: " + file.lastModifiedTime);
|
|
Svc.Obs.notify("weave:service:reset-file-log");
|
|
this._log.trace("Notified: " + Date.now());
|
|
if (filenamePrefix == LOG_PREFIX_ERROR &&
|
|
!this._cleaningUpFileLogs) {
|
|
this._log.trace("Scheduling cleanup.");
|
|
Utils.nextTick(this.cleanupLogs, this);
|
|
}
|
|
}.bind(this));
|
|
} catch (ex) {
|
|
Svc.Obs.notify("weave:service:reset-file-log");
|
|
}
|
|
} else {
|
|
Svc.Obs.notify("weave:service:reset-file-log");
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Translates server error codes to meaningful strings.
|
|
*
|
|
* @param code
|
|
* server error code as an integer
|
|
*/
|
|
errorStr: function errorStr(code) {
|
|
switch (code.toString()) {
|
|
case "1":
|
|
return "illegal-method";
|
|
case "2":
|
|
return "invalid-captcha";
|
|
case "3":
|
|
return "invalid-username";
|
|
case "4":
|
|
return "cannot-overwrite-resource";
|
|
case "5":
|
|
return "userid-mismatch";
|
|
case "6":
|
|
return "json-parse-failure";
|
|
case "7":
|
|
return "invalid-password";
|
|
case "8":
|
|
return "invalid-record";
|
|
case "9":
|
|
return "weak-password";
|
|
default:
|
|
return "generic-server-error";
|
|
}
|
|
},
|
|
|
|
shouldReportError: function shouldReportError() {
|
|
if (Status.login == MASTER_PASSWORD_LOCKED) {
|
|
this._log.trace("shouldReportError: false (master password locked).");
|
|
return false;
|
|
}
|
|
|
|
if (this.dontIgnoreErrors) {
|
|
return true;
|
|
}
|
|
|
|
let lastSync = Svc.Prefs.get("lastSync");
|
|
if (lastSync && ((Date.now() - Date.parse(lastSync)) >
|
|
Svc.Prefs.get("errorhandler.networkFailureReportTimeout") * 1000)) {
|
|
Status.sync = PROLONGED_SYNC_FAILURE;
|
|
if (this.didReportProlongedError) {
|
|
this._log.trace("shouldReportError: false (prolonged sync failure, but" +
|
|
" we've already reported it).");
|
|
return false;
|
|
}
|
|
this._log.trace("shouldReportError: true (first prolonged sync failure).");
|
|
this.didReportProlongedError = true;
|
|
return true;
|
|
}
|
|
|
|
// We got a 401 mid-sync. Wait for the next sync before actually handling
|
|
// an error. This assumes that we'll get a 401 again on a login fetch in
|
|
// order to report the error.
|
|
if (!this.service.clusterURL) {
|
|
this._log.trace("shouldReportError: false (no cluster URL; " +
|
|
"possible node reassignment).");
|
|
return false;
|
|
}
|
|
|
|
return ([Status.login, Status.sync].indexOf(SERVER_MAINTENANCE) == -1 &&
|
|
[Status.login, Status.sync].indexOf(LOGIN_FAILED_NETWORK_ERROR) == -1);
|
|
},
|
|
|
|
get currentAlertMode() {
|
|
return Svc.Prefs.get("errorhandler.alert.mode");
|
|
},
|
|
|
|
set currentAlertMode(str) {
|
|
return Svc.Prefs.set("errorhandler.alert.mode", str);
|
|
},
|
|
|
|
get earliestNextAlert() {
|
|
return Svc.Prefs.get("errorhandler.alert.earliestNext", 0) * 1000;
|
|
},
|
|
|
|
set earliestNextAlert(msec) {
|
|
return Svc.Prefs.set("errorhandler.alert.earliestNext", msec / 1000);
|
|
},
|
|
|
|
clearServerAlerts: function () {
|
|
// If we have any outstanding alerts, apparently they're no longer relevant.
|
|
Svc.Prefs.resetBranch("errorhandler.alert");
|
|
},
|
|
|
|
/**
|
|
* X-Weave-Alert headers can include a JSON object:
|
|
*
|
|
* {
|
|
* "code": // One of "hard-eol", "soft-eol".
|
|
* "url": // For "Learn more" link.
|
|
* "message": // Logged in Sync logs.
|
|
* }
|
|
*/
|
|
handleServerAlert: function (xwa) {
|
|
if (!xwa.code) {
|
|
this._log.warn("Got structured X-Weave-Alert, but no alert code.");
|
|
return;
|
|
}
|
|
|
|
switch (xwa.code) {
|
|
// Gently and occasionally notify the user that this service will be
|
|
// shutting down.
|
|
case "soft-eol":
|
|
// Fall through.
|
|
|
|
// Tell the user that this service has shut down, and drop our syncing
|
|
// frequency dramatically.
|
|
case "hard-eol":
|
|
// Note that both of these alerts should be subservient to future "sign
|
|
// in with your Firefox Account" storage alerts.
|
|
if ((this.currentAlertMode != xwa.code) ||
|
|
(this.earliestNextAlert < Date.now())) {
|
|
Utils.nextTick(function() {
|
|
Svc.Obs.notify("weave:eol", xwa);
|
|
}, this);
|
|
this._log.error("X-Weave-Alert: " + xwa.code + ": " + xwa.message);
|
|
this.earliestNextAlert = Date.now() + this.MINIMUM_ALERT_INTERVAL_MSEC;
|
|
this.currentAlertMode = xwa.code;
|
|
}
|
|
break;
|
|
default:
|
|
this._log.debug("Got unexpected X-Weave-Alert code: " + xwa.code);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Handle HTTP response results or exceptions and set the appropriate
|
|
* Status.* bits.
|
|
*
|
|
* This method also looks for "side-channel" warnings.
|
|
*/
|
|
checkServerError: function (resp) {
|
|
switch (resp.status) {
|
|
case 200:
|
|
case 404:
|
|
case 513:
|
|
let xwa = resp.headers['x-weave-alert'];
|
|
|
|
// Only process machine-readable alerts.
|
|
if (!xwa || !xwa.startsWith("{")) {
|
|
this.clearServerAlerts();
|
|
return;
|
|
}
|
|
|
|
try {
|
|
xwa = JSON.parse(xwa);
|
|
} catch (ex) {
|
|
this._log.warn("Malformed X-Weave-Alert from server: " + xwa);
|
|
return;
|
|
}
|
|
|
|
this.handleServerAlert(xwa);
|
|
break;
|
|
|
|
case 400:
|
|
if (resp == RESPONSE_OVER_QUOTA) {
|
|
Status.sync = OVER_QUOTA;
|
|
}
|
|
break;
|
|
|
|
case 401:
|
|
this.service.logout();
|
|
this._log.info("Got 401 response; resetting clusterURL.");
|
|
Svc.Prefs.reset("clusterURL");
|
|
|
|
let delay = 0;
|
|
if (Svc.Prefs.get("lastSyncReassigned")) {
|
|
// We got a 401 in the middle of the previous sync, and we just got
|
|
// another. Login must have succeeded in order for us to get here, so
|
|
// the password should be correct.
|
|
// This is likely to be an intermittent server issue, so back off and
|
|
// give it time to recover.
|
|
this._log.warn("Last sync also failed for 401. Delaying next sync.");
|
|
delay = MINIMUM_BACKOFF_INTERVAL;
|
|
} else {
|
|
this._log.debug("New mid-sync 401 failure. Making a note.");
|
|
Svc.Prefs.set("lastSyncReassigned", true);
|
|
}
|
|
this._log.info("Attempting to schedule another sync.");
|
|
this.service.scheduler.scheduleNextSync(delay);
|
|
break;
|
|
|
|
case 500:
|
|
case 502:
|
|
case 503:
|
|
case 504:
|
|
Status.enforceBackoff = true;
|
|
if (resp.status == 503 && resp.headers["retry-after"]) {
|
|
let retryAfter = resp.headers["retry-after"];
|
|
this._log.debug("Got Retry-After: " + retryAfter);
|
|
if (this.service.isLoggedIn) {
|
|
Status.sync = SERVER_MAINTENANCE;
|
|
} else {
|
|
Status.login = SERVER_MAINTENANCE;
|
|
}
|
|
Svc.Obs.notify("weave:service:backoff:interval",
|
|
parseInt(retryAfter, 10));
|
|
}
|
|
break;
|
|
}
|
|
|
|
switch (resp.result) {
|
|
case Cr.NS_ERROR_UNKNOWN_HOST:
|
|
case Cr.NS_ERROR_CONNECTION_REFUSED:
|
|
case Cr.NS_ERROR_NET_TIMEOUT:
|
|
case Cr.NS_ERROR_NET_RESET:
|
|
case Cr.NS_ERROR_NET_INTERRUPT:
|
|
case Cr.NS_ERROR_PROXY_CONNECTION_REFUSED:
|
|
// The constant says it's about login, but in fact it just
|
|
// indicates general network error.
|
|
if (this.service.isLoggedIn) {
|
|
Status.sync = LOGIN_FAILED_NETWORK_ERROR;
|
|
} else {
|
|
Status.login = LOGIN_FAILED_NETWORK_ERROR;
|
|
}
|
|
break;
|
|
}
|
|
},
|
|
};
|