mirror of https://github.com/oxen-io/session-ios
Create SignalUtilitiesKit
nielsandriesse
4 years ago
parent
82127bfe4d
commit
c475f895e8
@ -1 +1 @@
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Subproject commit 0c79ca436b633fdf1b0daf90e86fd323dcc60c55
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Subproject commit e28da414f77b9cba508c92e90b16b815847cde7e
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@ -1,20 +0,0 @@
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//
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// Copyright (c) 2018 Open Whisper Systems. All rights reserved.
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//
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#import <Foundation/Foundation.h>
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@interface Randomness : NSObject
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/**
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* Generates a given number of cryptographically secure bytes using SecRandomCopyBytes.
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*
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* @param numberBytes The number of bytes to be generated.
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*
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* @return Random Bytes.
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*/
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+ (NSData *)generateRandomBytes:(int)numberBytes;
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@end
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//
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// Copyright (c) 2018 Open Whisper Systems. All rights reserved.
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//
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#import "Randomness.h"
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#import <SessionProtocolKit/OWSAsserts.h>
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@implementation Randomness
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+ (NSData *)generateRandomBytes:(int)numberBytes
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{
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NSMutableData *_Nullable randomBytes = [NSMutableData dataWithLength:numberBytes];
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if (!randomBytes) {
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OWSFail(@"Could not allocate buffer for random bytes.");
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}
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int err = 0;
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err = SecRandomCopyBytes(kSecRandomDefault, numberBytes, [randomBytes mutableBytes]);
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if (err != noErr || randomBytes.length != numberBytes) {
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OWSFail(@"Could not generate random bytes.");
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}
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return [randomBytes copy];
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}
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@end
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@ -1,7 +1,7 @@
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import PromiseKit
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/// Delay the execution of the promise constructed in `body` by `delay` seconds.
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internal func withDelay<T>(_ delay: TimeInterval, completionQueue: DispatchQueue, body: @escaping () -> Promise<T>) -> Promise<T> {
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public func withDelay<T>(_ delay: TimeInterval, completionQueue: DispatchQueue, body: @escaping () -> Promise<T>) -> Promise<T> {
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#if DEBUG
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assert(Thread.current.isMainThread) // Timers don't do well on background queues
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#endif
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Load Diff
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//
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// Copyright (c) 2018 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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// TODO define actual type, and validate length
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public typealias IdentityKey = Data
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/// based on libsignal-service-java's AccountManager class
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@objc(SSKAccountServiceClient)
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public class AccountServiceClient: NSObject {
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static var shared = AccountServiceClient()
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private let serviceClient: SignalServiceClient
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override init() {
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self.serviceClient = SignalServiceRestClient()
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}
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public func getPreKeysCount() -> Promise<Int> {
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return serviceClient.getAvailablePreKeys()
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}
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public func setPreKeys(identityKey: IdentityKey, signedPreKeyRecord: SignedPreKeyRecord, preKeyRecords: [PreKeyRecord]) -> Promise<Void> {
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return serviceClient.registerPreKeys(identityKey: identityKey, signedPreKeyRecord: signedPreKeyRecord, preKeyRecords: preKeyRecords)
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}
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public func setSignedPreKey(_ signedPreKey: SignedPreKeyRecord) -> Promise<Void> {
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return serviceClient.setCurrentSignedPreKey(signedPreKey)
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}
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}
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import PromiseKit
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public extension AnyPromise {
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public static func from<T : Any>(_ promise: Promise<T>) -> AnyPromise {
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let result = AnyPromise(promise)
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result.retainUntilComplete()
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return result
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}
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}
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//
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// Copyright (c) 2019 Open Whisper Systems. All rights reserved.
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//
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#import <UIKit/UIKit.h>
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NS_ASSUME_NONNULL_BEGIN
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static inline BOOL OWSIsDebugBuild()
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{
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#ifdef DEBUG
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return YES;
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#else
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return NO;
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#endif
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}
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// These are fired whenever the corresponding "main app" or "app extension"
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// notification is fired.
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//
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// 1. This saves you the work of observing both.
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// 2. This allows us to ensure that any critical work (e.g. re-opening
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// databases) has been done before app re-enters foreground, etc.
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extern NSString *const OWSApplicationDidEnterBackgroundNotification;
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extern NSString *const OWSApplicationWillEnterForegroundNotification;
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extern NSString *const OWSApplicationWillResignActiveNotification;
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extern NSString *const OWSApplicationDidBecomeActiveNotification;
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typedef void (^BackgroundTaskExpirationHandler)(void);
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typedef void (^AppActiveBlock)(void);
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NSString *NSStringForUIApplicationState(UIApplicationState value);
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@class OWSAES256Key;
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@protocol SSKKeychainStorage;
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@protocol AppContext <NSObject>
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@property (nonatomic, readonly) BOOL isMainApp;
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@property (nonatomic, readonly) BOOL isMainAppAndActive;
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/// Whether the app was woken up by a silent push notification. This is important for
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/// determining whether attachments should be downloaded or not.
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@property (nonatomic) BOOL wasWokenUpByPushNotification;
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// Whether the user is using a right-to-left language like Arabic.
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@property (nonatomic, readonly) BOOL isRTL;
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@property (nonatomic, readonly) BOOL isRunningTests;
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@property (atomic, nullable) UIWindow *mainWindow;
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// Unlike UIApplication.applicationState, this is thread-safe.
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// It contains the "last known" application state.
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//
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// Because it is updated in response to "will/did-style" events, it is
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// conservative and skews toward less-active and not-foreground:
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//
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// * It doesn't report "is active" until the app is active
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// and reports "inactive" as soon as it _will become_ inactive.
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// * It doesn't report "is foreground (but inactive)" until the app is
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// foreground & inactive and reports "background" as soon as it _will
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// enter_ background.
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//
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// This conservatism is useful, since we want to err on the side of
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// caution when, for example, we do work that should only be done
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// when the app is foreground and active.
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@property (atomic, readonly) UIApplicationState reportedApplicationState;
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// A convenience accessor for reportedApplicationState.
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//
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// This method is thread-safe.
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- (BOOL)isInBackground;
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// A convenience accessor for reportedApplicationState.
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//
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// This method is thread-safe.
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- (BOOL)isAppForegroundAndActive;
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// Should start a background task if isMainApp is YES.
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// Should just return UIBackgroundTaskInvalid if isMainApp is NO.
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- (UIBackgroundTaskIdentifier)beginBackgroundTaskWithExpirationHandler:
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(BackgroundTaskExpirationHandler)expirationHandler;
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// Should be a NOOP if isMainApp is NO.
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- (void)endBackgroundTask:(UIBackgroundTaskIdentifier)backgroundTaskIdentifier;
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// Should be a NOOP if isMainApp is NO.
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- (void)ensureSleepBlocking:(BOOL)shouldBeBlocking blockingObjects:(NSArray<id> *)blockingObjects;
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// Should only be called if isMainApp is YES.
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- (void)setMainAppBadgeNumber:(NSInteger)value;
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- (void)setStatusBarHidden:(BOOL)isHidden animated:(BOOL)isAnimated;
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@property (nonatomic, readonly) CGFloat statusBarHeight;
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// Returns the VC that should be used to present alerts, modals, etc.
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- (nullable UIViewController *)frontmostViewController;
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// Returns nil if isMainApp is NO
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@property (nullable, nonatomic, readonly) UIAlertAction *openSystemSettingsAction;
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// Should be a NOOP if isMainApp is NO.
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- (void)setNetworkActivityIndicatorVisible:(BOOL)value;
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- (void)runNowOrWhenMainAppIsActive:(AppActiveBlock)block;
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@property (atomic, readonly) NSDate *appLaunchTime;
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- (id<SSKKeychainStorage>)keychainStorage;
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- (NSString *)appDocumentDirectoryPath;
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- (NSString *)appSharedDataDirectoryPath;
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- (NSUserDefaults *)appUserDefaults;
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@end
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id<AppContext> CurrentAppContext(void);
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void SetCurrentAppContext(id<AppContext> appContext);
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void ExitShareExtension(void);
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#ifdef DEBUG
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void ClearCurrentAppContextForTests(void);
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#endif
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NS_ASSUME_NONNULL_END
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//
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// Copyright (c) 2018 Open Whisper Systems. All rights reserved.
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//
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#import "AppContext.h"
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#import <SessionProtocolKit/SessionProtocolKit.h>
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NS_ASSUME_NONNULL_BEGIN
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NSString *const OWSApplicationDidEnterBackgroundNotification = @"OWSApplicationDidEnterBackgroundNotification";
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NSString *const OWSApplicationWillEnterForegroundNotification = @"OWSApplicationWillEnterForegroundNotification";
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NSString *const OWSApplicationWillResignActiveNotification = @"OWSApplicationWillResignActiveNotification";
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NSString *const OWSApplicationDidBecomeActiveNotification = @"OWSApplicationDidBecomeActiveNotification";
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NSString *NSStringForUIApplicationState(UIApplicationState value)
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{
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switch (value) {
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case UIApplicationStateActive:
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return @"UIApplicationStateActive";
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case UIApplicationStateInactive:
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return @"UIApplicationStateInactive";
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case UIApplicationStateBackground:
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return @"UIApplicationStateBackground";
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}
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}
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static id<AppContext> currentAppContext = nil;
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id<AppContext> CurrentAppContext(void)
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{
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OWSCAssertDebug(currentAppContext);
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return currentAppContext;
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}
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void SetCurrentAppContext(id<AppContext> appContext)
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{
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// The main app context should only be set once.
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//
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// App extensions may be opened multiple times in the same process,
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// so statics will persist.
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OWSCAssertDebug(!currentAppContext || !currentAppContext.isMainApp);
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currentAppContext = appContext;
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}
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#ifdef DEBUG
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void ClearCurrentAppContextForTests()
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{
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currentAppContext = nil;
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}
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#endif
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void ExitShareExtension(void)
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{
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OWSLogInfo(@"ExitShareExtension");
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[DDLog flushLog];
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exit(0);
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}
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NS_ASSUME_NONNULL_END
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@ -0,0 +1,38 @@
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//
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// Copyright (c) 2018 Open Whisper Systems. All rights reserved.
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//
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#import <Foundation/Foundation.h>
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NS_ASSUME_NONNULL_BEGIN
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typedef void (^AppReadyBlock)(void);
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@interface AppReadiness : NSObject
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- (instancetype)init NS_UNAVAILABLE;
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// This method can be called on any thread.
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+ (BOOL)isAppReady;
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// This method should only be called on the main thread.
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+ (void)setAppIsReady;
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// If the app is ready, the block is called immediately;
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// otherwise it is called when the app becomes ready.
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//
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// This method should only be called on the main thread.
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// The block will always be called on the main thread.
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//
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// * The "will become ready" blocks are called before the "did become ready" blocks.
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// * The "will become ready" blocks should be used for internal setup of components
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// so that they are ready to interact with other components of the system.
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// * The "did become ready" blocks should be used for any work that should be done
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// on app launch, especially work that uses other components.
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// * We should usually use "did become ready" blocks since they are safer.
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+ (void)runNowOrWhenAppWillBecomeReady:(AppReadyBlock)block NS_SWIFT_NAME(runNowOrWhenAppWillBecomeReady(_:));
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+ (void)runNowOrWhenAppDidBecomeReady:(AppReadyBlock)block NS_SWIFT_NAME(runNowOrWhenAppDidBecomeReady(_:));
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@end
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NS_ASSUME_NONNULL_END
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@ -0,0 +1,144 @@
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//
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// Copyright (c) 2018 Open Whisper Systems. All rights reserved.
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//
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#import "AppReadiness.h"
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#import <SessionProtocolKit/SessionProtocolKit.h>
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#import "AppContext.h"
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#import "SSKAsserts.h"
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NS_ASSUME_NONNULL_BEGIN
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@interface AppReadiness ()
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@property (atomic) BOOL isAppReady;
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@property (nonatomic) NSMutableArray<AppReadyBlock> *appWillBecomeReadyBlocks;
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@property (nonatomic) NSMutableArray<AppReadyBlock> *appDidBecomeReadyBlocks;
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@end
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#pragma mark -
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@implementation AppReadiness
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+ (instancetype)sharedManager
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{
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static AppReadiness *sharedMyManager = nil;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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sharedMyManager = [[self alloc] initDefault];
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});
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return sharedMyManager;
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}
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- (instancetype)initDefault
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{
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self = [super init];
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if (!self) {
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return self;
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}
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OWSSingletonAssert();
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self.appWillBecomeReadyBlocks = [NSMutableArray new];
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self.appDidBecomeReadyBlocks = [NSMutableArray new];
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return self;
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}
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+ (BOOL)isAppReady
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{
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return [self.sharedManager isAppReady];
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}
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+ (void)runNowOrWhenAppWillBecomeReady:(AppReadyBlock)block
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{
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DispatchMainThreadSafe(^{
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[self.sharedManager runNowOrWhenAppWillBecomeReady:block];
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});
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}
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- (void)runNowOrWhenAppWillBecomeReady:(AppReadyBlock)block
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{
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OWSAssertIsOnMainThread();
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OWSAssertDebug(block);
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if (CurrentAppContext().isRunningTests) {
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// We don't need to do any "on app ready" work in the tests.
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return;
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}
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if (self.isAppReady) {
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block();
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return;
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}
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[self.appWillBecomeReadyBlocks addObject:block];
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}
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+ (void)runNowOrWhenAppDidBecomeReady:(AppReadyBlock)block
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{
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DispatchMainThreadSafe(^{
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[self.sharedManager runNowOrWhenAppDidBecomeReady:block];
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});
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}
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- (void)runNowOrWhenAppDidBecomeReady:(AppReadyBlock)block
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{
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OWSAssertIsOnMainThread();
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OWSAssertDebug(block);
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if (CurrentAppContext().isRunningTests) {
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// We don't need to do any "on app ready" work in the tests.
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return;
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}
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if (self.isAppReady) {
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block();
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return;
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}
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[self.appDidBecomeReadyBlocks addObject:block];
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}
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+ (void)setAppIsReady
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{
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[self.sharedManager setAppIsReady];
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}
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- (void)setAppIsReady
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{
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OWSAssertIsOnMainThread();
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OWSAssertDebug(!self.isAppReady);
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OWSLogInfo(@"");
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self.isAppReady = YES;
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[self runAppReadyBlocks];
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}
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- (void)runAppReadyBlocks
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{
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OWSAssertIsOnMainThread();
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OWSAssertDebug(self.isAppReady);
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NSArray<AppReadyBlock> *appWillBecomeReadyBlocks = [self.appWillBecomeReadyBlocks copy];
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[self.appWillBecomeReadyBlocks removeAllObjects];
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NSArray<AppReadyBlock> *appDidBecomeReadyBlocks = [self.appDidBecomeReadyBlocks copy];
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[self.appDidBecomeReadyBlocks removeAllObjects];
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// We invoke the _will become_ blocks before the _did become_ blocks.
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for (AppReadyBlock block in appWillBecomeReadyBlocks) {
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block();
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}
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for (AppReadyBlock block in appDidBecomeReadyBlocks) {
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block();
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}
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}
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@end
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NS_ASSUME_NONNULL_END
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@ -0,0 +1,32 @@
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//
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// Copyright (c) 2019 Open Whisper Systems. All rights reserved.
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//
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#import <Foundation/Foundation.h>
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NS_ASSUME_NONNULL_BEGIN
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@interface AppVersion : NSObject
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// The properties are updated immediately after launch.
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@property (atomic, readonly) NSString *firstAppVersion;
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@property (atomic, nullable, readonly) NSString *lastAppVersion;
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@property (atomic, readonly) NSString *currentAppVersion;
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// There properties aren't updated until appLaunchDidComplete is called.
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@property (atomic, nullable, readonly) NSString *lastCompletedLaunchAppVersion;
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@property (atomic, nullable, readonly) NSString *lastCompletedLaunchMainAppVersion;
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@property (atomic, nullable, readonly) NSString *lastCompletedLaunchSAEAppVersion;
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- (instancetype)init NS_UNAVAILABLE;
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+ (instancetype)sharedInstance;
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- (void)mainAppLaunchDidComplete;
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- (void)saeLaunchDidComplete;
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- (BOOL)isFirstLaunch;
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@end
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NS_ASSUME_NONNULL_END
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@ -0,0 +1,133 @@
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//
|
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// Copyright (c) 2019 Open Whisper Systems. All rights reserved.
|
||||
//
|
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#import "AppVersion.h"
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#import "NSUserDefaults+OWS.h"
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||||
#import <SessionProtocolKit/SessionProtocolKit.h>
|
||||
|
||||
NS_ASSUME_NONNULL_BEGIN
|
||||
|
||||
NSString *const kNSUserDefaults_FirstAppVersion = @"kNSUserDefaults_FirstAppVersion";
|
||||
NSString *const kNSUserDefaults_LastAppVersion = @"kNSUserDefaults_LastVersion";
|
||||
NSString *const kNSUserDefaults_LastCompletedLaunchAppVersion = @"kNSUserDefaults_LastCompletedLaunchAppVersion";
|
||||
NSString *const kNSUserDefaults_LastCompletedLaunchAppVersion_MainApp
|
||||
= @"kNSUserDefaults_LastCompletedLaunchAppVersion_MainApp";
|
||||
NSString *const kNSUserDefaults_LastCompletedLaunchAppVersion_SAE
|
||||
= @"kNSUserDefaults_LastCompletedLaunchAppVersion_SAE";
|
||||
|
||||
@interface AppVersion ()
|
||||
|
||||
@property (atomic) NSString *firstAppVersion;
|
||||
@property (atomic, nullable) NSString *lastAppVersion;
|
||||
@property (atomic) NSString *currentAppVersion;
|
||||
|
||||
@property (atomic, nullable) NSString *lastCompletedLaunchAppVersion;
|
||||
@property (atomic, nullable) NSString *lastCompletedLaunchMainAppVersion;
|
||||
@property (atomic, nullable) NSString *lastCompletedLaunchSAEAppVersion;
|
||||
|
||||
@end
|
||||
|
||||
#pragma mark -
|
||||
|
||||
@implementation AppVersion
|
||||
|
||||
+ (instancetype)sharedInstance
|
||||
{
|
||||
static AppVersion *instance = nil;
|
||||
static dispatch_once_t onceToken;
|
||||
dispatch_once(&onceToken, ^{
|
||||
instance = [AppVersion new];
|
||||
[instance configure];
|
||||
});
|
||||
return instance;
|
||||
}
|
||||
|
||||
- (void)configure {
|
||||
OWSAssertIsOnMainThread();
|
||||
|
||||
self.currentAppVersion = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleShortVersionString"];
|
||||
|
||||
// The version of the app when it was first launched.
|
||||
// nil if the app has never been launched before.
|
||||
self.firstAppVersion = [[NSUserDefaults appUserDefaults] objectForKey:kNSUserDefaults_FirstAppVersion];
|
||||
// The version of the app the last time it was launched.
|
||||
// nil if the app has never been launched before.
|
||||
self.lastAppVersion = [[NSUserDefaults appUserDefaults] objectForKey:kNSUserDefaults_LastAppVersion];
|
||||
self.lastCompletedLaunchAppVersion =
|
||||
[[NSUserDefaults appUserDefaults] objectForKey:kNSUserDefaults_LastCompletedLaunchAppVersion];
|
||||
self.lastCompletedLaunchMainAppVersion =
|
||||
[[NSUserDefaults appUserDefaults] objectForKey:kNSUserDefaults_LastCompletedLaunchAppVersion_MainApp];
|
||||
self.lastCompletedLaunchSAEAppVersion =
|
||||
[[NSUserDefaults appUserDefaults] objectForKey:kNSUserDefaults_LastCompletedLaunchAppVersion_SAE];
|
||||
|
||||
// Ensure the value for the "first launched version".
|
||||
if (!self.firstAppVersion) {
|
||||
self.firstAppVersion = self.currentAppVersion;
|
||||
[[NSUserDefaults appUserDefaults] setObject:self.currentAppVersion forKey:kNSUserDefaults_FirstAppVersion];
|
||||
}
|
||||
|
||||
// Update the value for the "most recently launched version".
|
||||
[[NSUserDefaults appUserDefaults] setObject:self.currentAppVersion forKey:kNSUserDefaults_LastAppVersion];
|
||||
[[NSUserDefaults appUserDefaults] synchronize];
|
||||
|
||||
// The long version string looks like an IPv4 address.
|
||||
// To prevent the log scrubber from scrubbing it,
|
||||
// we replace . with _.
|
||||
NSString *longVersionString = [[[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleVersion"]
|
||||
stringByReplacingOccurrencesOfString:@"."
|
||||
withString:@"_"];
|
||||
|
||||
OWSLogInfo(@"firstAppVersion: %@", self.firstAppVersion);
|
||||
OWSLogInfo(@"lastAppVersion: %@", self.lastAppVersion);
|
||||
OWSLogInfo(@"currentAppVersion: %@ (%@)", self.currentAppVersion, longVersionString);
|
||||
|
||||
OWSLogInfo(@"lastCompletedLaunchAppVersion: %@", self.lastCompletedLaunchAppVersion);
|
||||
OWSLogInfo(@"lastCompletedLaunchMainAppVersion: %@", self.lastCompletedLaunchMainAppVersion);
|
||||
OWSLogInfo(@"lastCompletedLaunchSAEAppVersion: %@", self.lastCompletedLaunchSAEAppVersion);
|
||||
}
|
||||
|
||||
- (void)appLaunchDidComplete
|
||||
{
|
||||
OWSAssertIsOnMainThread();
|
||||
|
||||
OWSLogInfo(@"appLaunchDidComplete");
|
||||
|
||||
self.lastCompletedLaunchAppVersion = self.currentAppVersion;
|
||||
|
||||
// Update the value for the "most recently launch-completed version".
|
||||
[[NSUserDefaults appUserDefaults] setObject:self.currentAppVersion
|
||||
forKey:kNSUserDefaults_LastCompletedLaunchAppVersion];
|
||||
[[NSUserDefaults appUserDefaults] synchronize];
|
||||
}
|
||||
|
||||
- (void)mainAppLaunchDidComplete
|
||||
{
|
||||
OWSAssertIsOnMainThread();
|
||||
|
||||
self.lastCompletedLaunchMainAppVersion = self.currentAppVersion;
|
||||
[[NSUserDefaults appUserDefaults] setObject:self.currentAppVersion
|
||||
forKey:kNSUserDefaults_LastCompletedLaunchAppVersion_MainApp];
|
||||
|
||||
[self appLaunchDidComplete];
|
||||
}
|
||||
|
||||
- (void)saeLaunchDidComplete
|
||||
{
|
||||
OWSAssertIsOnMainThread();
|
||||
|
||||
self.lastCompletedLaunchSAEAppVersion = self.currentAppVersion;
|
||||
[[NSUserDefaults appUserDefaults] setObject:self.currentAppVersion
|
||||
forKey:kNSUserDefaults_LastCompletedLaunchAppVersion_SAE];
|
||||
|
||||
[self appLaunchDidComplete];
|
||||
}
|
||||
|
||||
- (BOOL)isFirstLaunch
|
||||
{
|
||||
return self.firstAppVersion != nil;
|
||||
}
|
||||
|
||||
@end
|
||||
|
||||
NS_ASSUME_NONNULL_END
|
||||
@ -0,0 +1,7 @@
|
||||
|
||||
public extension Array where Element : CustomStringConvertible {
|
||||
|
||||
public var prettifiedDescription: String {
|
||||
return "[ " + map { $0.description }.joined(separator: ", ") + " ]"
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,21 @@
|
||||
|
||||
public enum BuildConfiguration : String, CustomStringConvertible {
|
||||
case debug, production
|
||||
|
||||
public static let current: BuildConfiguration = {
|
||||
#if DEBUG
|
||||
return .debug
|
||||
#else
|
||||
return .production
|
||||
#endif
|
||||
}()
|
||||
|
||||
public var description: String { return rawValue }
|
||||
}
|
||||
|
||||
@objc public final class LKBuildConfiguration : NSObject {
|
||||
|
||||
override private init() { }
|
||||
|
||||
@objc public static var current: String { return BuildConfiguration.current.description }
|
||||
}
|
||||
@ -0,0 +1,40 @@
|
||||
//
|
||||
// Copyright (c) 2018 Open Whisper Systems. All rights reserved.
|
||||
//
|
||||
|
||||
#import <Foundation/Foundation.h>
|
||||
|
||||
NS_ASSUME_NONNULL_BEGIN
|
||||
|
||||
@interface ByteParser : NSObject
|
||||
|
||||
@property (nonatomic, readonly) BOOL hasError;
|
||||
|
||||
- (instancetype)init NS_UNAVAILABLE;
|
||||
|
||||
- (instancetype)initWithData:(NSData *)data littleEndian:(BOOL)littleEndian;
|
||||
|
||||
#pragma mark - Short
|
||||
|
||||
- (uint16_t)shortAtIndex:(NSUInteger)index;
|
||||
- (uint16_t)nextShort;
|
||||
|
||||
#pragma mark - Int
|
||||
|
||||
- (uint32_t)intAtIndex:(NSUInteger)index;
|
||||
- (uint32_t)nextInt;
|
||||
|
||||
#pragma mark - Long
|
||||
|
||||
- (uint64_t)longAtIndex:(NSUInteger)index;
|
||||
- (uint64_t)nextLong;
|
||||
|
||||
#pragma mark -
|
||||
|
||||
- (BOOL)readZero:(NSUInteger)length;
|
||||
|
||||
- (nullable NSData *)readBytes:(NSUInteger)length;
|
||||
|
||||
@end
|
||||
|
||||
NS_ASSUME_NONNULL_END
|
||||
@ -0,0 +1,143 @@
|
||||
//
|
||||
// Copyright (c) 2018 Open Whisper Systems. All rights reserved.
|
||||
//
|
||||
|
||||
#import "ByteParser.h"
|
||||
#import <SessionProtocolKit/SessionProtocolKit.h>
|
||||
|
||||
NS_ASSUME_NONNULL_BEGIN
|
||||
|
||||
@interface ByteParser ()
|
||||
|
||||
@property (nonatomic, readonly) BOOL littleEndian;
|
||||
@property (nonatomic, readonly) NSData *data;
|
||||
@property (nonatomic) NSUInteger cursor;
|
||||
@property (nonatomic) BOOL hasError;
|
||||
|
||||
@end
|
||||
|
||||
#pragma mark -
|
||||
|
||||
@implementation ByteParser
|
||||
|
||||
- (instancetype)initWithData:(NSData *)data littleEndian:(BOOL)littleEndian
|
||||
{
|
||||
if (self = [super init]) {
|
||||
_littleEndian = littleEndian;
|
||||
_data = data;
|
||||
}
|
||||
|
||||
return self;
|
||||
}
|
||||
|
||||
#pragma mark - Short
|
||||
|
||||
- (uint16_t)shortAtIndex:(NSUInteger)index
|
||||
{
|
||||
uint16_t value;
|
||||
const size_t valueSize = sizeof(value);
|
||||
OWSAssertDebug(valueSize == 2);
|
||||
if (index + valueSize > self.data.length) {
|
||||
self.hasError = YES;
|
||||
return 0;
|
||||
}
|
||||
[self.data getBytes:&value range:NSMakeRange(index, valueSize)];
|
||||
if (self.littleEndian) {
|
||||
return CFSwapInt16LittleToHost(value);
|
||||
} else {
|
||||
return CFSwapInt16BigToHost(value);
|
||||
}
|
||||
}
|
||||
|
||||
- (uint16_t)nextShort
|
||||
{
|
||||
uint16_t value = [self shortAtIndex:self.cursor];
|
||||
self.cursor += sizeof(value);
|
||||
return value;
|
||||
}
|
||||
|
||||
#pragma mark - Int
|
||||
|
||||
- (uint32_t)intAtIndex:(NSUInteger)index
|
||||
{
|
||||
uint32_t value;
|
||||
const size_t valueSize = sizeof(value);
|
||||
OWSAssertDebug(valueSize == 4);
|
||||
if (index + valueSize > self.data.length) {
|
||||
self.hasError = YES;
|
||||
return 0;
|
||||
}
|
||||
[self.data getBytes:&value range:NSMakeRange(index, valueSize)];
|
||||
if (self.littleEndian) {
|
||||
return CFSwapInt32LittleToHost(value);
|
||||
} else {
|
||||
return CFSwapInt32BigToHost(value);
|
||||
}
|
||||
}
|
||||
|
||||
- (uint32_t)nextInt
|
||||
{
|
||||
uint32_t value = [self intAtIndex:self.cursor];
|
||||
self.cursor += sizeof(value);
|
||||
return value;
|
||||
}
|
||||
|
||||
#pragma mark - Long
|
||||
|
||||
- (uint64_t)longAtIndex:(NSUInteger)index
|
||||
{
|
||||
uint64_t value;
|
||||
const size_t valueSize = sizeof(value);
|
||||
OWSAssertDebug(valueSize == 8);
|
||||
if (index + valueSize > self.data.length) {
|
||||
self.hasError = YES;
|
||||
return 0;
|
||||
}
|
||||
[self.data getBytes:&value range:NSMakeRange(index, valueSize)];
|
||||
if (self.littleEndian) {
|
||||
return CFSwapInt64LittleToHost(value);
|
||||
} else {
|
||||
return CFSwapInt64BigToHost(value);
|
||||
}
|
||||
}
|
||||
|
||||
- (uint64_t)nextLong
|
||||
{
|
||||
uint64_t value = [self longAtIndex:self.cursor];
|
||||
self.cursor += sizeof(value);
|
||||