/* 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/. */ /** * This file is in transition. It was originally conceived to fulfill the * needs of only Firefox Health Report. It is slowly being morphed into * fulfilling the needs of all data reporting facilities in Gecko applications. * As a result, some things feel a bit weird. * * DataReportingPolicy is both a driver for data reporting notification * (a true policy) and the driver for FHR data submission. The latter should * eventually be split into its own type and module. */ "use strict"; #ifndef MERGED_COMPARTMENT this.EXPORTED_SYMBOLS = [ "DataSubmissionRequest", // For test use only. "DataReportingPolicy", ]; const {classes: Cc, interfaces: Ci, utils: Cu} = Components; #endif Cu.import("resource://gre/modules/Services.jsm"); Cu.import("resource://gre/modules/Promise.jsm"); Cu.import("resource://gre/modules/Log.jsm"); Cu.import("resource://services-common/utils.js"); Cu.import("resource://gre/modules/UpdateChannel.jsm"); const MILLISECONDS_PER_DAY = 24 * 60 * 60 * 1000; // Used as a sanity lower bound for dates stored in prefs. This module was // implemented in 2012, so any earlier dates indicate an incorrect clock. const OLDEST_ALLOWED_YEAR = 2012; /** * Represents a request to display data policy. * * Instances of this are created when the policy is requesting the user's * approval to agree to the data submission policy. * * Receivers of these instances are expected to call one or more of the on* * functions when events occur. * * When one of these requests is received, the first thing a callee should do * is present notification to the user of the data policy. When the notice * is displayed to the user, the callee should call `onUserNotifyComplete`. * This begins a countdown timer that upon completion will signal implicit * acceptance of the policy. If for whatever reason the callee could not * display a notice, it should call `onUserNotifyFailed`. * * Once the user is notified of the policy, the callee has the option of * signaling explicit user acceptance or rejection of the policy. They do this * by calling `onUserAccept` or `onUserReject`, respectively. These functions * are essentially proxies to * DataReportingPolicy.{recordUserAcceptance,recordUserRejection}. * * If the user never explicitly accepts or rejects the policy, it will be * implicitly accepted after a specified duration of time. The notice is * expected to remain displayed even after implicit acceptance (in case the * user is away from the device). So, no event signaling implicit acceptance * is exposed. * * Receivers of instances of this type should treat it as a black box with * the exception of the on* functions. * * @param policy * (DataReportingPolicy) The policy instance this request came from. * @param deferred * (deferred) The promise that will be fulfilled when display occurs. */ function NotifyPolicyRequest(policy, deferred) { this.policy = policy; this.deferred = deferred; } NotifyPolicyRequest.prototype = { /** * Called when the user is notified of the policy. * * This starts a countdown timer that will eventually signify implicit * acceptance of the data policy. */ onUserNotifyComplete: function onUserNotified() { this.deferred.resolve(); return this.deferred.promise; }, /** * Called when there was an error notifying the user about the policy. * * @param error * (Error) Explains what went wrong. */ onUserNotifyFailed: function onUserNotifyFailed(error) { this.deferred.reject(error); }, /** * Called when the user agreed to the data policy. * * @param reason * (string) How the user agreed to the policy. */ onUserAccept: function onUserAccept(reason) { this.policy.recordUserAcceptance(reason); }, /** * Called when the user rejected the data policy. * * @param reason * (string) How the user rejected the policy. */ onUserReject: function onUserReject(reason) { this.policy.recordUserRejection(reason); }, }; Object.freeze(NotifyPolicyRequest.prototype); /** * Represents a request to submit data. * * Instances of this are created when the policy requests data upload or * deletion. * * Receivers are expected to call one of the provided on* functions to signal * completion of the request. * * Instances of this type should not be instantiated outside of this file. * Receivers of instances of this type should not attempt to do anything with * the instance except call one of the on* methods. */ this.DataSubmissionRequest = function (promise, expiresDate, isDelete) { this.promise = promise; this.expiresDate = expiresDate; this.isDelete = isDelete; this.state = null; this.reason = null; } this.DataSubmissionRequest.prototype = Object.freeze({ NO_DATA_AVAILABLE: "no-data-available", SUBMISSION_SUCCESS: "success", SUBMISSION_FAILURE_SOFT: "failure-soft", SUBMISSION_FAILURE_HARD: "failure-hard", UPLOAD_IN_PROGRESS: "upload-in-progress", /** * No submission was attempted because no data was available. * * In the case of upload, this means there is no data to upload (perhaps * it isn't available yet). In case of remote deletion, it means that there * is no remote data to delete. */ onNoDataAvailable: function onNoDataAvailable() { this.state = this.NO_DATA_AVAILABLE; this.promise.resolve(this); return this.promise.promise; }, /** * Data submission has completed successfully. * * In case of upload, this means the upload completed successfully. In case * of deletion, the data was deleted successfully. * * @param date * (Date) When data submission occurred. */ onSubmissionSuccess: function onSubmissionSuccess(date) { this.state = this.SUBMISSION_SUCCESS; this.submissionDate = date; this.promise.resolve(this); return this.promise.promise; }, /** * There was a recoverable failure when submitting data. * * Perhaps the server was down. Perhaps the network wasn't available. The * policy may request submission again after a short delay. * * @param reason * (string) Why the failure occurred. For logging purposes only. */ onSubmissionFailureSoft: function onSubmissionFailureSoft(reason=null) { this.state = this.SUBMISSION_FAILURE_SOFT; this.reason = reason; this.promise.resolve(this); return this.promise.promise; }, /** * There was an unrecoverable failure when submitting data. * * Perhaps the client is misconfigured. Perhaps the server rejected the data. * Attempts at performing submission again will yield the same result. So, * the policy should not try again (until the next day). * * @param reason * (string) Why the failure occurred. For logging purposes only. */ onSubmissionFailureHard: function onSubmissionFailureHard(reason=null) { this.state = this.SUBMISSION_FAILURE_HARD; this.reason = reason; this.promise.resolve(this); return this.promise.promise; }, /** * The request was aborted because an upload was already in progress. */ onUploadInProgress: function (reason=null) { this.state = this.UPLOAD_IN_PROGRESS; this.reason = reason; this.promise.resolve(this); return this.promise.promise; }, }); /** * Manages scheduling of Firefox Health Report data submission. * * The rules of data submission are as follows: * * 1. Do not submit data more than once every 24 hours. * 2. Try to submit as close to 24 hours apart as possible. * 3. Do not submit too soon after application startup so as to not negatively * impact performance at startup. * 4. Before first ever data submission, the user should be notified about * data collection practices. * 5. User should have opportunity to react to this notification before * data submission. * 6. Display of notification without any explicit user action constitutes * implicit consent after a certain duration of time. * 7. If data submission fails, try at most 2 additional times before giving * up on that day's submission. * * The listener passed into the instance must have the following properties * (which are callbacks that will be invoked at certain key events): * * * onRequestDataUpload(request) - Called when the policy is requesting * data to be submitted. The function is passed a `DataSubmissionRequest`. * The listener should call one of the special resolving functions on that * instance (see the documentation for that type). * * * onRequestRemoteDelete(request) - Called when the policy is requesting * deletion of remotely stored data. The function is passed a * `DataSubmissionRequest`. The listener should call one of the special * resolving functions on that instance (just like `onRequestDataUpload`). * * * onNotifyDataPolicy(request) - Called when the policy is requesting the * user to be notified that data submission will occur. The function * receives a `NotifyPolicyRequest` instance. The callee should call one or * more of the functions on that instance when specific events occur. See * the documentation for that type for more. * * Note that the notification method is abstracted. Different applications * can have different mechanisms by which they notify the user of data * submission practices. * * @param policyPrefs * (Preferences) Handle on preferences branch on which state will be * queried and stored. * @param healthReportPrefs * (Preferences) Handle on preferences branch holding Health Report state. * @param listener * (object) Object with callbacks that will be invoked at certain key * events. */ this.DataReportingPolicy = function (prefs, healthReportPrefs, listener) { this._log = Log.repository.getLogger("Services.DataReporting.Policy"); this._log.level = Log.Level["Debug"]; for (let handler of this.REQUIRED_LISTENERS) { if (!listener[handler]) { throw new Error("Passed listener does not contain required handler: " + handler); } } this._prefs = prefs; this._healthReportPrefs = healthReportPrefs; this._listener = listener; // If the policy version has changed, reset all preferences, so that // the notification reappears. let acceptedVersion = this._prefs.get("dataSubmissionPolicyAcceptedVersion"); if (typeof(acceptedVersion) == "number" && acceptedVersion < this.minimumPolicyVersion) { this._log.info("policy version has changed - resetting all prefs"); // We don't want to delay the notification in this case. let firstRunToRestore = this.firstRunDate; this._prefs.resetBranch(); this.firstRunDate = firstRunToRestore.getTime() ? firstRunToRestore : this.now(); } else if (!this.firstRunDate.getTime()) { // If we've never run before, record the current time. this.firstRunDate = this.now(); } // Install an observer so that we can act on changes from external // code (such as Android UI). // Use a function because this is the only place where the Preferences // abstraction is way less usable than nsIPrefBranch. // // Hang on to the observer here so that tests can reach it. this.uploadEnabledObserver = function onUploadEnabledChanged() { if (this.pendingDeleteRemoteData || this.healthReportUploadEnabled) { // Nothing to do: either we're already deleting because the caller // came through the front door (rHRUE), or they set the flag to true. return; } this._log.info("uploadEnabled pref changed. Scheduling deletion."); this.deleteRemoteData(); }.bind(this); healthReportPrefs.observe("uploadEnabled", this.uploadEnabledObserver); // Ensure we are scheduled to submit. if (!this.nextDataSubmissionDate.getTime()) { this.nextDataSubmissionDate = this._futureDate(MILLISECONDS_PER_DAY); } // Date at which we performed user notification of acceptance. // This is an instance variable because implicit acceptance should only // carry forward through a single application instance. this._dataSubmissionPolicyNotifiedDate = null; // Record when we last requested for submitted data to be sent. This is // to avoid having multiple outstanding requests. this._inProgressSubmissionRequest = null; }; this.DataReportingPolicy.prototype = Object.freeze({ /** * How long after first run we should notify about data submission. */ SUBMISSION_NOTIFY_INTERVAL_MSEC: 12 * 60 * 60 * 1000, /** * Time that must elapse with no user action for implicit acceptance. * * THERE ARE POTENTIAL LEGAL IMPLICATIONS OF CHANGING THIS VALUE. Check with * Privacy and/or Legal before modifying. */ IMPLICIT_ACCEPTANCE_INTERVAL_MSEC: 8 * 60 * 60 * 1000, /** * How often to poll to see if we need to do something. * * The interval needs to be short enough such that short-lived applications * have an opportunity to submit data. But, it also needs to be long enough * to not negatively impact performance. * * The random bit is to ensure that other systems scheduling around the same * interval don't all get scheduled together. */ POLL_INTERVAL_MSEC: (60 * 1000) + Math.floor(2.5 * 1000 * Math.random()), /** * How long individual data submission requests live before expiring. * * Data submission requests have this long to complete before we give up on * them and try again. * * We want this to be short enough that we retry frequently enough but long * enough to give slow networks and systems time to handle it. */ SUBMISSION_REQUEST_EXPIRE_INTERVAL_MSEC: 10 * 60 * 1000, /** * Our backoff schedule in case of submission failure. * * This dictates both the number of times we retry a daily submission and * when to retry after each failure. * * Each element represents how long to wait after each recoverable failure. * After the first failure, we wait the time in element 0 before trying * again. After the second failure, we wait the time in element 1. Once * we run out of values in this array, we give up on that day's submission * and schedule for a day out. */ FAILURE_BACKOFF_INTERVALS: [ 15 * 60 * 1000, 60 * 60 * 1000, ], /** * State of user notification of data submission. */ STATE_NOTIFY_UNNOTIFIED: "not-notified", STATE_NOTIFY_WAIT: "waiting", STATE_NOTIFY_COMPLETE: "ok", REQUIRED_LISTENERS: [ "onRequestDataUpload", "onRequestRemoteDelete", "onNotifyDataPolicy", ], /** * The first time the health report policy came into existence. * * This is used for scheduling of the initial submission. */ get firstRunDate() { return CommonUtils.getDatePref(this._prefs, "firstRunTime", 0, this._log, OLDEST_ALLOWED_YEAR); }, set firstRunDate(value) { this._log.debug("Setting first-run date: " + value); CommonUtils.setDatePref(this._prefs, "firstRunTime", value, OLDEST_ALLOWED_YEAR); }, /** * Short circuit policy checking and always assume acceptance. * * This shuld never be set by the user. Instead, it is a per-application or * per-deployment default pref. */ get dataSubmissionPolicyBypassAcceptance() { return this._prefs.get("dataSubmissionPolicyBypassAcceptance", false); }, /** * When the user was notified that data submission could occur. * * This is used for logging purposes. this._dataSubmissionPolicyNotifiedDate * is what's used internally. */ get dataSubmissionPolicyNotifiedDate() { return CommonUtils.getDatePref(this._prefs, "dataSubmissionPolicyNotifiedTime", 0, this._log, OLDEST_ALLOWED_YEAR); }, set dataSubmissionPolicyNotifiedDate(value) { this._log.debug("Setting user notified date: " + value); CommonUtils.setDatePref(this._prefs, "dataSubmissionPolicyNotifiedTime", value, OLDEST_ALLOWED_YEAR); }, /** * When the user accepted or rejected the data submission policy. * * If there was implicit acceptance, this will be set to the time of that. */ get dataSubmissionPolicyResponseDate() { return CommonUtils.getDatePref(this._prefs, "dataSubmissionPolicyResponseTime", 0, this._log, OLDEST_ALLOWED_YEAR); }, set dataSubmissionPolicyResponseDate(value) { this._log.debug("Setting user notified reaction date: " + value); CommonUtils.setDatePref(this._prefs, "dataSubmissionPolicyResponseTime", value, OLDEST_ALLOWED_YEAR); }, /** * Records the result of user notification of data submission policy. * * This is used for logging and diagnostics purposes. It can answer the * question "how was data submission agreed to on this profile?" * * Not all values are defined by this type and can come from other systems. * * The value must be a string and should be something machine readable. e.g. * "accept-user-clicked-ok-button-in-info-bar" */ get dataSubmissionPolicyResponseType() { return this._prefs.get("dataSubmissionPolicyResponseType", "none-recorded"); }, set dataSubmissionPolicyResponseType(value) { if (typeof(value) != "string") { throw new Error("Value must be a string. Got " + typeof(value)); } this._prefs.set("dataSubmissionPolicyResponseType", value); }, /** * Whether submission of data is allowed. * * This is the master switch for remote server communication. If it is * false, we never request upload or deletion. */ get dataSubmissionEnabled() { // Default is true because we are opt-out. return this._prefs.get("dataSubmissionEnabled", true); }, set dataSubmissionEnabled(value) { this._prefs.set("dataSubmissionEnabled", !!value); }, /** * The minimum policy version which for dataSubmissionPolicyAccepted to * to be valid. */ get minimumPolicyVersion() { // First check if the current channel has an ove let channel = UpdateChannel.get(false); let channelPref = this._prefs.get("minimumPolicyVersion.channel-" + channel); return channelPref !== undefined ? channelPref : this._prefs.get("minimumPolicyVersion", 1); }, /** * Whether the user has accepted that data submission can occur. * * This overrides dataSubmissionEnabled. */ get dataSubmissionPolicyAccepted() { // Be conservative and default to false. return this._prefs.get("dataSubmissionPolicyAccepted", false); }, set dataSubmissionPolicyAccepted(value) { this._prefs.set("dataSubmissionPolicyAccepted", !!value); if (!!value) { let currentPolicyVersion = this._prefs.get("currentPolicyVersion", 1); this._prefs.set("dataSubmissionPolicyAcceptedVersion", currentPolicyVersion); } else { this._prefs.reset("dataSubmissionPolicyAcceptedVersion"); } }, /** * The state of user notification of the data policy. * * This must be DataReportingPolicy.STATE_NOTIFY_COMPLETE before data * submission can occur. * * @return DataReportingPolicy.STATE_NOTIFY_* constant. */ get notifyState() { if (this.dataSubmissionPolicyResponseDate.getTime()) { return this.STATE_NOTIFY_COMPLETE; } // We get the local state - not the state from prefs - because we don't want // a value from a previous application run to interfere. This prevents // a scenario where notification occurs just before application shutdown and // notification is displayed for shorter than the policy requires. if (!this._dataSubmissionPolicyNotifiedDate) { return this.STATE_NOTIFY_UNNOTIFIED; } return this.STATE_NOTIFY_WAIT; }, /** * When this policy last requested data submission. * * This is used mainly for forensics purposes and should have no bearing * on scheduling or run-time behavior. */ get lastDataSubmissionRequestedDate() { return CommonUtils.getDatePref(this._healthReportPrefs, "lastDataSubmissionRequestedTime", 0, this._log, OLDEST_ALLOWED_YEAR); }, set lastDataSubmissionRequestedDate(value) { CommonUtils.setDatePref(this._healthReportPrefs, "lastDataSubmissionRequestedTime", value, OLDEST_ALLOWED_YEAR); }, /** * When the last data submission actually occurred. * * This is used mainly for forensics purposes and should have no bearing on * actual scheduling. */ get lastDataSubmissionSuccessfulDate() { return CommonUtils.getDatePref(this._healthReportPrefs, "lastDataSubmissionSuccessfulTime", 0, this._log, OLDEST_ALLOWED_YEAR); }, set lastDataSubmissionSuccessfulDate(value) { CommonUtils.setDatePref(this._healthReportPrefs, "lastDataSubmissionSuccessfulTime", value, OLDEST_ALLOWED_YEAR); }, /** * When we last encountered a submission failure. * * This is used for forensics purposes and should have no bearing on * scheduling. */ get lastDataSubmissionFailureDate() { return CommonUtils.getDatePref(this._healthReportPrefs, "lastDataSubmissionFailureTime", 0, this._log, OLDEST_ALLOWED_YEAR); }, set lastDataSubmissionFailureDate(value) { CommonUtils.setDatePref(this._healthReportPrefs, "lastDataSubmissionFailureTime", value, OLDEST_ALLOWED_YEAR); }, /** * When the next data submission is scheduled to occur. * * This is maintained internally by this type. External users should not * mutate this value. */ get nextDataSubmissionDate() { return CommonUtils.getDatePref(this._healthReportPrefs, "nextDataSubmissionTime", 0, this._log, OLDEST_ALLOWED_YEAR); }, set nextDataSubmissionDate(value) { CommonUtils.setDatePref(this._healthReportPrefs, "nextDataSubmissionTime", value, OLDEST_ALLOWED_YEAR); }, /** * The number of submission failures for this day's upload. * * This is used to drive backoff and scheduling. */ get currentDaySubmissionFailureCount() { let v = this._healthReportPrefs.get("currentDaySubmissionFailureCount", 0); if (!Number.isInteger(v)) { v = 0; } return v; }, set currentDaySubmissionFailureCount(value) { if (!Number.isInteger(value)) { throw new Error("Value must be integer: " + value); } this._healthReportPrefs.set("currentDaySubmissionFailureCount", value); }, /** * Whether a request to delete remote data is awaiting completion. * * If this is true, the policy will request that remote data be deleted. * Furthermore, no new data will be uploaded (if it's even allowed) until * the remote deletion is fulfilled. */ get pendingDeleteRemoteData() { return !!this._healthReportPrefs.get("pendingDeleteRemoteData", false); }, set pendingDeleteRemoteData(value) { this._healthReportPrefs.set("pendingDeleteRemoteData", !!value); }, /** * Whether upload of Firefox Health Report data is enabled. */ get healthReportUploadEnabled() { return !!this._healthReportPrefs.get("uploadEnabled", true); }, // External callers should update this via `recordHealthReportUploadEnabled` // to ensure appropriate side-effects are performed. set healthReportUploadEnabled(value) { this._healthReportPrefs.set("uploadEnabled", !!value); }, /** * Whether the FHR upload enabled setting is locked and can't be changed. */ get healthReportUploadLocked() { return this._healthReportPrefs.locked("uploadEnabled"); }, /** * Record user acceptance of data submission policy. * * Data submission will not be allowed to occur until this is called. * * This is typically called through the `onUserAccept` property attached to * the promise passed to `onUserNotify` in the policy listener. But, it can * be called through other interfaces at any time and the call will have * an impact on future data submissions. * * @param reason * (string) How the user accepted the data submission policy. */ recordUserAcceptance: function recordUserAcceptance(reason="no-reason") { this._log.info("User accepted data submission policy: " + reason); this.dataSubmissionPolicyResponseDate = this.now(); this.dataSubmissionPolicyResponseType = "accepted-" + reason; this.dataSubmissionPolicyAccepted = true; }, /** * Record user rejection of submission policy. * * Data submission will not be allowed to occur if this is called. * * This is typically called through the `onUserReject` property attached to * the promise passed to `onUserNotify` in the policy listener. But, it can * be called through other interfaces at any time and the call will have an * impact on future data submissions. */ recordUserRejection: function recordUserRejection(reason="no-reason") { this._log.info("User rejected data submission policy: " + reason); this.dataSubmissionPolicyResponseDate = this.now(); this.dataSubmissionPolicyResponseType = "rejected-" + reason; this.dataSubmissionPolicyAccepted = false; }, /** * Record the user's intent for whether FHR should upload data. * * This is the preferred way for XUL applications to record a user's * preference on whether Firefox Health Report should upload data to * a server. * * If upload is disabled through this API, a request for remote data * deletion is initiated automatically. * * If upload is being disabled and this operation is scheduled to * occur immediately, a promise will be returned. This promise will be * fulfilled when the deletion attempt finishes. If upload is being * disabled and a promise is not returned, callers must poll * `haveRemoteData` on the HealthReporter instance to see if remote * data has been deleted. * * @param flag * (bool) Whether data submission is enabled or disabled. * @param reason * (string) Why this value is being adjusted. For logging * purposes only. */ recordHealthReportUploadEnabled: function (flag, reason="no-reason") { let result = null; if (!flag) { result = this.deleteRemoteData(reason); } this.healthReportUploadEnabled = flag; return result; }, /** * Request that remote data be deleted. * * This will record an intent that previously uploaded data is to be deleted. * The policy will eventually issue a request to the listener for data * deletion. It will keep asking for deletion until the listener acknowledges * that data has been deleted. */ deleteRemoteData: function deleteRemoteData(reason="no-reason") { this._log.info("Remote data deletion requested: " + reason); this.pendingDeleteRemoteData = true; // We want delete deletion to occur as soon as possible. Move up any // pending scheduled data submission and try to trigger. this.nextDataSubmissionDate = this.now(); return this.checkStateAndTrigger(); }, /** * Start background polling for activity. * * This will set up a recurring timer that will periodically check if * activity is warranted. * * You typically call this function for each constructed instance. */ startPolling: function startPolling() { this.stopPolling(); this._timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer); this._timer.initWithCallback({ notify: function notify() { this.checkStateAndTrigger(); }.bind(this) }, this.POLL_INTERVAL_MSEC, this._timer.TYPE_REPEATING_SLACK); }, /** * Stop background polling for activity. * * This should be called when the instance is no longer needed. */ stopPolling: function stopPolling() { if (this._timer) { this._timer.cancel(); this._timer = null; } }, /** * Abstraction for obtaining current time. * * The purpose of this is to facilitate testing. Testing code can monkeypatch * this on instances instead of modifying the singleton Date object. */ now: function now() { return new Date(); }, /** * Check state and trigger actions, if necessary. * * This is what enforces the submission and notification policy detailed * above. You can think of this as the driver for health report data * submission. * * Typically this function is called automatically by the background polling. * But, it can safely be called manually as needed. */ checkStateAndTrigger: function checkStateAndTrigger() { // If the master data submission kill switch is toggled, we have nothing // to do. We don't notify about data policies because this would have // no effect. if (!this.dataSubmissionEnabled) { this._log.debug("Data submission is disabled. Doing nothing."); return; } let now = this.now(); let nowT = now.getTime(); let nextSubmissionDate = this.nextDataSubmissionDate; // If the system clock were ever set to a time in the distant future, // it's possible our next schedule date is far out as well. We know // we shouldn't schedule for more than a day out, so we reset the next // scheduled date appropriately. 3 days was chosen arbitrarily. if (nextSubmissionDate.getTime() >= nowT + 3 * MILLISECONDS_PER_DAY) { this._log.warn("Next data submission time is far away. Was the system " + "clock recently readjusted? " + nextSubmissionDate); // It shouldn't really matter what we set this to. 1 day in the future // should be pretty safe. this._moveScheduleForward24h(); // Fall through since we may have other actions. } // Tend to any in progress work. if (this._processInProgressSubmission()) { return; } // Requests to delete remote data take priority above everything else. if (this.pendingDeleteRemoteData) { if (nowT < nextSubmissionDate.getTime()) { this._log.debug("Deletion request is scheduled for the future: " + nextSubmissionDate); return; } return this._dispatchSubmissionRequest("onRequestRemoteDelete", true); } if (!this.healthReportUploadEnabled) { this._log.debug("Data upload is disabled. Doing nothing."); return; } // If the user hasn't responded to the data policy, don't do anything. if (!this.ensureNotifyResponse(now)) { return; } // User has opted out of data submission. if (!this.dataSubmissionPolicyAccepted && !this.dataSubmissionPolicyBypassAcceptance) { this._log.debug("Data submission has been disabled per user request."); return; } // User has responded to data policy and data submission is enabled. Now // comes the scheduling part. if (nowT < nextSubmissionDate.getTime()) { this._log.debug("Next data submission is scheduled in the future: " + nextSubmissionDate); return; } return this._dispatchSubmissionRequest("onRequestDataUpload", false); }, /** * Ensure user has responded to data submission policy. * * This must be called before data submission. If the policy has not been * responded to, data submission must not occur. * * @return bool Whether user has responded to data policy. */ ensureNotifyResponse: function ensureNotifyResponse(now) { if (this.dataSubmissionPolicyBypassAcceptance) { return true; } let notifyState = this.notifyState; if (notifyState == this.STATE_NOTIFY_UNNOTIFIED) { let notifyAt = new Date(this.firstRunDate.getTime() + this.SUBMISSION_NOTIFY_INTERVAL_MSEC); if (now.getTime() < notifyAt.getTime()) { this._log.debug("Don't have to notify about data submission yet."); return false; } let onComplete = function onComplete() { this._log.info("Data submission notification presented."); let now = this.now(); this._dataSubmissionPolicyNotifiedDate = now; this.dataSubmissionPolicyNotifiedDate = now; }.bind(this); let deferred = Promise.defer(); deferred.promise.then(onComplete, (error) => { this._log.warn("Data policy notification presentation failed: " + CommonUtils.exceptionStr(error)); }); this._log.info("Requesting display of data policy."); let request = new NotifyPolicyRequest(this, deferred); try { this._listener.onNotifyDataPolicy(request); } catch (ex) { this._log.warn("Exception when calling onNotifyDataPolicy: " + CommonUtils.exceptionStr(ex)); } return false; } // We're waiting for user action or implicit acceptance after display. if (notifyState == this.STATE_NOTIFY_WAIT) { // Check for implicit acceptance. let implicitAcceptance = this._dataSubmissionPolicyNotifiedDate.getTime() + this.IMPLICIT_ACCEPTANCE_INTERVAL_MSEC; this._log.debug("Now: " + now.getTime()); this._log.debug("Will accept: " + implicitAcceptance); if (now.getTime() < implicitAcceptance) { this._log.debug("Still waiting for reaction or implicit acceptance. " + "Now: " + now.getTime() + " < " + "Accept: " + implicitAcceptance); return false; } this.recordUserAcceptance("implicit-time-elapsed"); return true; } // If this happens, we have a coding error in this file. if (notifyState != this.STATE_NOTIFY_COMPLETE) { throw new Error("Unknown notification state: " + notifyState); } return true; }, _processInProgressSubmission: function _processInProgressSubmission() { if (!this._inProgressSubmissionRequest) { return false; } let now = this.now().getTime(); if (this._inProgressSubmissionRequest.expiresDate.getTime() > now) { this._log.info("Waiting on in-progress submission request to finish."); return true; } this._log.warn("Old submission request has expired from no activity."); this._inProgressSubmissionRequest.promise.reject(new Error("Request has expired.")); this._inProgressSubmissionRequest = null; this._handleSubmissionFailure(); return false; }, _dispatchSubmissionRequest: function _dispatchSubmissionRequest(handler, isDelete) { let now = this.now(); // We're past our scheduled next data submission date, so let's do it! this.lastDataSubmissionRequestedDate = now; let deferred = Promise.defer(); let requestExpiresDate = this._futureDate(this.SUBMISSION_REQUEST_EXPIRE_INTERVAL_MSEC); this._inProgressSubmissionRequest = new DataSubmissionRequest(deferred, requestExpiresDate, isDelete); let onSuccess = function onSuccess(result) { this._inProgressSubmissionRequest = null; this._handleSubmissionResult(result); }.bind(this); let onError = function onError(error) { this._log.error("Error when handling data submission result: " + CommonUtils.exceptionStr(error)); this._inProgressSubmissionRequest = null; this._handleSubmissionFailure(); }.bind(this); let chained = deferred.promise.then(onSuccess, onError); this._log.info("Requesting data submission. Will expire at " + requestExpiresDate); try { this._listener[handler](this._inProgressSubmissionRequest); } catch (ex) { this._log.warn("Exception when calling " + handler + ": " + CommonUtils.exceptionStr(ex)); this._inProgressSubmissionRequest = null; this._handleSubmissionFailure(); return; } return chained; }, _handleSubmissionResult: function _handleSubmissionResult(request) { let state = request.state; let reason = request.reason || "no reason"; this._log.info("Got submission request result: " + state); if (state == request.SUBMISSION_SUCCESS) { if (request.isDelete) { this.pendingDeleteRemoteData = false; this._log.info("Successful data delete reported."); } else { this._log.info("Successful data upload reported."); } this.lastDataSubmissionSuccessfulDate = request.submissionDate; let nextSubmissionDate = new Date(request.submissionDate.getTime() + MILLISECONDS_PER_DAY); // Schedule pending deletes immediately. This has potential to overload // the server. However, the frequency of delete requests across all // clients should be low, so this shouldn't pose a problem. if (this.pendingDeleteRemoteData) { nextSubmissionDate = this.now(); } this.nextDataSubmissionDate = nextSubmissionDate; this.currentDaySubmissionFailureCount = 0; return; } if (state == request.NO_DATA_AVAILABLE) { if (request.isDelete) { this._log.info("Remote data delete requested but no remote data was stored."); this.pendingDeleteRemoteData = false; return; } this._log.info("No data was available to submit. May try later."); this._handleSubmissionFailure(); return; } // We don't special case request.isDelete for these failures because it // likely means there was a server error. if (state == request.SUBMISSION_FAILURE_SOFT) { this._log.warn("Soft error submitting data: " + reason); this.lastDataSubmissionFailureDate = this.now(); this._handleSubmissionFailure(); return; } if (state == request.SUBMISSION_FAILURE_HARD) { this._log.warn("Hard error submitting data: " + reason); this.lastDataSubmissionFailureDate = this.now(); this._moveScheduleForward24h(); return; } throw new Error("Unknown state on DataSubmissionRequest: " + request.state); }, _handleSubmissionFailure: function _handleSubmissionFailure() { if (this.currentDaySubmissionFailureCount >= this.FAILURE_BACKOFF_INTERVALS.length) { this._log.warn("Reached the limit of daily submission attempts. " + "Rescheduling for tomorrow."); this._moveScheduleForward24h(); return false; } let offset = this.FAILURE_BACKOFF_INTERVALS[this.currentDaySubmissionFailureCount]; this.nextDataSubmissionDate = this._futureDate(offset); this.currentDaySubmissionFailureCount++; return true; }, _moveScheduleForward24h: function _moveScheduleForward24h() { let d = this._futureDate(MILLISECONDS_PER_DAY); this._log.info("Setting next scheduled data submission for " + d); this.nextDataSubmissionDate = d; this.currentDaySubmissionFailureCount = 0; }, _futureDate: function _futureDate(offset) { return new Date(this.now().getTime() + offset); }, });