mirror of https://github.com/oxen-io/session-ios
Michael Kirk
8 years ago
parent
7c28805442
commit
a5f067936c
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//
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// Copyright (c) 2017 Open Whisper Systems. All rights reserved.
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//
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import Foundation
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import PromiseKit
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class OWS106EnsureProfileComplete: OWSDatabaseMigration {
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let TAG = "[OWS106EnsureProfileComplete]"
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// increment a similar constant for each migration.
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class func migrationId() -> String {
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return "106"
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}
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// Overriding runUp since we have some specific completion criteria which
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// is more likely to fail since it involves network requests.
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override func runUp() {
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CompleteRegistrationFixerJob(completionHandler: {
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Logger.info("\(self.TAG) Completed. Saving.")
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self.save()
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}).start()
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}
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/**
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* A previous client bug made it possible for re-registering users to register their new account
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* but never upload new pre-keys. The symptom is that there will be accounts with no uploaded
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* identity key. We detect that here and fix the situation
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*/
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private class CompleteRegistrationFixerJob {
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let TAG = "[CompleteRegistrationFixerJob]"
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// Duration between retries if update fails.
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static let kRetryInterval: TimeInterval = 5 * 60
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var timer: Timer?
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let completionHandler: () -> Void
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init (completionHandler: @escaping () -> Void) {
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self.completionHandler = completionHandler
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}
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func start() {
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assert(self.timer == nil)
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let timer = WeakTimer.scheduledTimer(timeInterval: CompleteRegistrationFixerJob.kRetryInterval, target: self, userInfo: nil, repeats: true) { [weak self] timer in
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guard let strongSelf = self else {
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return
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}
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var isCompleted = false
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strongSelf.ensureProfileComplete().then { _ -> Void in
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guard isCompleted == false else {
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Logger.info("Already saved. Skipping redundant call.")
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return
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}
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Logger.info("\(strongSelf.TAG) complete. Canceling timer and saving.")
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isCompleted = true
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timer.invalidate()
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strongSelf.completionHandler()
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}.catch { error in
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Logger.error("\(strongSelf.TAG) failed with \(error). We'll try again in \(CompleteRegistrationFixerJob.kRetryInterval) seconds.")
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}.retainUntilComplete()
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}
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self.timer = timer
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timer.fire()
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}
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func ensureProfileComplete() -> Promise<Void> {
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guard let localRecipientId = TSAccountManager.localNumber() else {
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// local app doesn't think we're registered, so nothing to worry about.
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return Promise(value: ())
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}
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let (promise, fulfill, reject) = Promise<Void>.pending()
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guard let networkManager = Environment.getCurrent().networkManager else {
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owsFail("\(TAG) network manager was unexpectedly not set")
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return Promise(error: OWSErrorMakeAssertionError())
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}
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ProfileFetcherJob(networkManager: networkManager).getProfile(recipientId: localRecipientId).then { _ -> Void in
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Logger.info("\(self.TAG) verified recipient profile is in good shape: \(localRecipientId)")
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fulfill()
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}.catch { error in
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switch error {
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case SignalServiceProfile.ValidationError.invalidIdentityKey(let description):
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Logger.warn("\(self.TAG) detected incomplete profile for \(localRecipientId) error: \(description)")
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// This is the error condition we're looking for. Update prekeys to properly set the identity key, completing registration.
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TSPreKeyManager.registerPreKeys(with: .signedAndOneTime,
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success: {
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Logger.info("\(self.TAG) successfully uploaded pre-keys. Profile should be fixed.")
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fulfill()
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},
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failure: { _ in
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reject(OWSErrorWithCodeDescription(.signalServiceFailure, "\(self.TAG) Unknown error in \(#function)"))
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})
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default:
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reject(error)
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}
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}.retainUntilComplete()
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return promise
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}
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}
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}
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