417 lines
16 KiB
Objective-C
417 lines
16 KiB
Objective-C
//
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// Copyright 2017 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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//
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#import "ContactsViewHelper.h"
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#import "UIUtil.h"
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#import <ContactsUI/ContactsUI.h>
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#import <SignalCoreKit/NSString+OWS.h>
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#import <SignalMessaging/Environment.h>
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#import <SignalMessaging/OWSProfileManager.h>
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#import <SignalMessaging/SignalMessaging-Swift.h>
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#import <SignalServiceKit/AppContext.h>
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#import <SignalServiceKit/Contact.h>
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#import <SignalServiceKit/PhoneNumber.h>
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#import <SignalServiceKit/SignalAccount.h>
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#import <SignalServiceKit/TSAccountManager.h>
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#import <SignalUI/SignalUI-Swift.h>
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NS_ASSUME_NONNULL_BEGIN
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@interface ContactsViewHelper ()
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@property (nonatomic) NSHashTable<id<ContactsViewHelperObserver>> *observers;
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@property (nonatomic) NSDictionary<NSString *, SignalAccount *> *phoneNumberSignalAccountMap;
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@property (nonatomic) NSDictionary<NSUUID *, SignalAccount *> *uuidSignalAccountMap;
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@property (nonatomic) NSArray<SignalAccount *> *signalAccounts;
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@end
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#pragma mark -
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@implementation ContactsViewHelper
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- (instancetype)init
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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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_observers = [NSHashTable weakObjectsHashTable];
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AppReadinessRunNowOrWhenUIDidBecomeReadySync(^{
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// setup() - especially updateContacts() - can
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// be expensive, so we don't want to run that
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// directly in runNowOrWhenAppDidBecomeReadySync().
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// That could cause 0x8badf00d crashes.
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//
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// On the other hand, the user might quickly
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// open a view (like the compose view) that uses
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// this helper. If the helper hasn't completed
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// setup, that view won't be able to display a
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// list of users to pick from. Therefore, we
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// can't use runNowOrWhenAppDidBecomeReadyAsync()
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// which might not run for many seconds after
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// the app becomes ready.
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//
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// Therefore we dispatch async to the main queue.
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// We'll run very soon after app UI becomes ready,
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// without introducing the risk of a 0x8badf00d
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// crash.
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dispatch_async(dispatch_get_main_queue(), ^{ [self setup]; });
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});
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return self;
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}
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- (void)setup
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{
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if (CurrentAppContext().isNSE) {
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return;
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}
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[self updateContacts];
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[self observeNotifications];
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}
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- (void)observeNotifications
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{
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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(signalAccountsDidChange:)
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name:OWSContactsManagerSignalAccountsDidChangeNotification
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object:nil];
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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(profileWhitelistDidChange:)
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name:kNSNotificationNameProfileWhitelistDidChange
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object:nil];
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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(blockListDidChange:)
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name:BlockingManager.blockListDidChange
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object:nil];
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}
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- (void)signalAccountsDidChange:(NSNotification *)notification
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{
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OWSAssertIsOnMainThread();
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[self updateContacts];
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}
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- (void)profileWhitelistDidChange:(NSNotification *)notification
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{
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OWSAssertIsOnMainThread();
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[self updateContacts];
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}
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- (void)addObserver:(id<ContactsViewHelperObserver>)observer
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{
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OWSAssertIsOnMainThread();
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[self.observers addObject:observer];
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}
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- (void)fireDidUpdateContacts
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{
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OWSAssertIsOnMainThread();
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for (id<ContactsViewHelperObserver> delegate in self.observers) {
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[delegate contactsViewHelperDidUpdateContacts];
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}
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}
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- (void)blockListDidChange:(NSNotification *)notification
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{
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OWSAssertIsOnMainThread();
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OWSAssertDebug(!CurrentAppContext().isNSE);
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[self updateContacts];
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}
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#pragma mark - Contacts
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- (nullable SignalAccount *)fetchSignalAccountForAddress:(SignalServiceAddress *)address
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{
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OWSAssertIsOnMainThread();
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OWSAssertDebug(address);
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OWSAssertDebug(!CurrentAppContext().isNSE);
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SignalAccount *_Nullable signalAccount;
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if (address.uuid) {
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signalAccount = self.uuidSignalAccountMap[address.uuid];
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}
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if (!signalAccount && address.phoneNumber) {
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signalAccount = self.phoneNumberSignalAccountMap[address.phoneNumber];
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}
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return signalAccount;
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}
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- (SignalAccount *)fetchOrBuildSignalAccountForAddress:(SignalServiceAddress *)address
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{
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OWSAssertDebug(address);
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OWSAssertDebug(!CurrentAppContext().isNSE);
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SignalAccount *_Nullable signalAccount = [self fetchSignalAccountForAddress:address];
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return (signalAccount ?: [[SignalAccount alloc] initWithSignalServiceAddress:address]);
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}
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- (NSArray<SignalAccount *> *)allSignalAccounts
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{
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OWSAssertDebug(!CurrentAppContext().isNSE);
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return self.signalAccounts;
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}
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- (SignalServiceAddress *)localAddress
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{
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OWSAssertDebug(!CurrentAppContext().isNSE);
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return TSAccountManager.localAddress;
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}
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- (BOOL)hasUpdatedContactsAtLeastOnce
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{
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OWSAssertDebug(!CurrentAppContext().isNSE);
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return self.contactsManagerImpl.hasLoadedSystemContacts;
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}
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- (void)updateContacts
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{
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OWSAssertIsOnMainThread();
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OWSAssertDebug(!CurrentAppContext().isNSE);
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NSMutableDictionary<NSString *, SignalAccount *> *phoneNumberSignalAccountMap = [NSMutableDictionary new];
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NSMutableDictionary<NSUUID *, SignalAccount *> *uuidSignalAccountMap = [NSMutableDictionary new];
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__block NSArray<SignalAccount *> *allSignalAccounts;
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__block NSArray<SignalServiceAddress *> *whitelistedAddresses;
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__block ContactsMaps *contactsMaps;
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[self.databaseStorage readWithBlock:^(SDSAnyReadTransaction *transaction) {
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allSignalAccounts = [self.contactsManagerImpl unsortedSignalAccountsWithTransaction:transaction];
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whitelistedAddresses = [self.profileManagerImpl allWhitelistedRegisteredAddressesWithTransaction:transaction];
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contactsMaps = [self.contactsManagerImpl contactsMapsWithTransaction:transaction];
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} file:__FILE__ function:__FUNCTION__ line:__LINE__];
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NSMutableArray<SignalAccount *> *accountsToProcess = [allSignalAccounts mutableCopy];
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for (SignalServiceAddress *address in whitelistedAddresses) {
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if ([contactsMaps isSystemContactWithAddress:address]) {
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continue;
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}
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[accountsToProcess addObject:[[SignalAccount alloc] initWithSignalServiceAddress:address]];
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}
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NSMutableSet<SignalServiceAddress *> *addressSet = [NSMutableSet new];
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NSMutableArray<SignalAccount *> *signalAccounts = [NSMutableArray new];
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for (SignalAccount *signalAccount in accountsToProcess) {
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if ([addressSet containsObject:signalAccount.recipientAddress]) {
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OWSLogVerbose(@"Ignoring duplicate: %@", signalAccount.recipientAddress);
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// We prefer the copy from contactsManager which will appear first
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// in accountsToProcess; don't overwrite it.
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continue;
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}
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[addressSet addObject:signalAccount.recipientAddress];
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if (signalAccount.recipientPhoneNumber) {
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phoneNumberSignalAccountMap[signalAccount.recipientPhoneNumber] = signalAccount;
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}
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if (signalAccount.recipientUUID) {
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uuidSignalAccountMap[signalAccount.recipientUUID] = signalAccount;
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}
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[signalAccounts addObject:signalAccount];
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}
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self.phoneNumberSignalAccountMap = [phoneNumberSignalAccountMap copy];
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self.uuidSignalAccountMap = [uuidSignalAccountMap copy];
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self.signalAccounts = [self.contactsManagerImpl sortSignalAccountsWithSneakyTransaction:signalAccounts];
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[self fireDidUpdateContacts];
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}
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- (NSArray<SignalAccount *> *)signalAccountsMatchingSearchString:(NSString *)searchText
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transaction:(SDSAnyReadTransaction *)transaction
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{
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OWSAssertDebug(!CurrentAppContext().isNSE);
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// Check for matches against "Note to Self".
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NSMutableArray<SignalAccount *> *signalAccountsToSearch = [self.signalAccounts mutableCopy];
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SignalAccount *selfAccount = [[SignalAccount alloc] initWithSignalServiceAddress:self.localAddress];
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[signalAccountsToSearch addObject:selfAccount];
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return [self.fullTextSearcher filterSignalAccounts:signalAccountsToSearch
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withSearchText:searchText
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transaction:transaction];
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}
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#pragma mark - Editing
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- (void)presentMissingContactAccessAlertControllerFromViewController:(UIViewController *)viewController
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{
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OWSAssertDebug(!CurrentAppContext().isNSE);
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[ContactsViewHelper presentMissingContactAccessAlertControllerFromViewController:viewController];
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}
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+ (void)presentMissingContactAccessAlertControllerFromViewController:(UIViewController *)viewController
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{
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OWSAssertDebug(!CurrentAppContext().isNSE);
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ActionSheetController *alert = [[ActionSheetController alloc]
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initWithTitle:OWSLocalizedString(@"EDIT_CONTACT_WITHOUT_CONTACTS_PERMISSION_ALERT_TITLE", comment
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: @"Alert title for when the user has just tried to edit a "
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@"contacts after declining to give Signal contacts "
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@"permissions")
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message:OWSLocalizedString(@"EDIT_CONTACT_WITHOUT_CONTACTS_PERMISSION_ALERT_BODY", comment
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: @"Alert body for when the user has just tried to edit a "
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@"contacts after declining to give Signal contacts "
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@"permissions")];
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[alert addAction:[[ActionSheetAction alloc]
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initWithTitle:OWSLocalizedString(@"AB_PERMISSION_MISSING_ACTION_NOT_NOW",
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@"Button text to dismiss missing contacts permission alert")
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accessibilityIdentifier:ACCESSIBILITY_IDENTIFIER_WITH_NAME(self, @"not_now")
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style:ActionSheetActionStyleCancel
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handler:nil]];
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ActionSheetAction *_Nullable openSystemSettingsAction =
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[AppContextUtils openSystemSettingsActionWithCompletion:nil];
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if (openSystemSettingsAction) {
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[alert addAction:openSystemSettingsAction];
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}
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[viewController presentActionSheet:alert];
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}
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- (nullable CNContactViewController *)contactViewControllerForAddress:(SignalServiceAddress *)address
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editImmediately:(BOOL)shouldEditImmediately
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{
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OWSAssertDebug(!CurrentAppContext().isNSE);
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return [self contactViewControllerForAddress:address
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editImmediately:shouldEditImmediately
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addToExistingCnContact:nil
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updatedNameComponents:nil];
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}
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- (nullable CNContactViewController *)contactViewControllerForAddress:(SignalServiceAddress *)address
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editImmediately:(BOOL)shouldEditImmediately
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addToExistingCnContact:(nullable CNContact *)existingContact
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updatedNameComponents:
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(nullable NSPersonNameComponents *)updatedNameComponents
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{
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OWSAssertIsOnMainThread();
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OWSAssertDebug(!CurrentAppContext().isNSE);
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SignalAccount *signalAccount = [self fetchSignalAccountForAddress:address];
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if (!self.contactsManagerImpl.supportsContactEditing) {
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// Should not expose UI that lets the user get here.
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OWSFailDebug(@"Contact editing not supported.");
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return nil;
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}
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if (!self.contactsManagerImpl.isSystemContactsAuthorized) {
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[self presentMissingContactAccessAlertControllerFromViewController:CurrentAppContext().frontmostViewController];
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return nil;
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}
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CNContactViewController *_Nullable contactViewController;
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CNContact *_Nullable cnContact = nil;
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if (existingContact) {
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CNMutableContact *updatedContact = [existingContact mutableCopy];
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NSMutableArray<CNLabeledValue *> *phoneNumbers
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= (updatedContact.phoneNumbers ? [updatedContact.phoneNumbers mutableCopy] : [NSMutableArray new]);
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// Only add recipientId as a phone number for the existing contact
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// if its not already present.
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BOOL hasPhoneNumber = NO;
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if (address.phoneNumber) {
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for (CNLabeledValue *existingPhoneNumber in phoneNumbers) {
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CNPhoneNumber *phoneNumber = existingPhoneNumber.value;
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if ([phoneNumber.stringValue isEqualToString:address.phoneNumber]) {
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OWSFailDebug(
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@"We currently only should the 'add to existing contact' UI for phone numbers that don't "
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@"correspond to an existing user.");
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hasPhoneNumber = YES;
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break;
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}
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}
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if (!hasPhoneNumber) {
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CNPhoneNumber *phoneNumber = [CNPhoneNumber phoneNumberWithStringValue:address.phoneNumber];
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CNLabeledValue<CNPhoneNumber *> *labeledPhoneNumber =
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[CNLabeledValue labeledValueWithLabel:CNLabelPhoneNumberMain value:phoneNumber];
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[phoneNumbers addObject:labeledPhoneNumber];
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updatedContact.phoneNumbers = phoneNumbers;
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// When adding a phone number to an existing contact, immediately enter
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// "edit" mode.
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shouldEditImmediately = YES;
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}
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cnContact = updatedContact;
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}
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}
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if (signalAccount && !cnContact && signalAccount.contact.cnContactId != nil) {
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cnContact = [self.contactsManager cnContactWithId:signalAccount.contact.cnContactId];
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}
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if (cnContact) {
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if (updatedNameComponents) {
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CNMutableContact *updatedContact = [cnContact mutableCopy];
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updatedContact.givenName = updatedNameComponents.givenName;
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updatedContact.familyName = updatedNameComponents.familyName;
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cnContact = updatedContact;
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}
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if (shouldEditImmediately) {
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// Not actually a "new" contact, but this brings up the edit form rather than the "Read" form
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// saving our users a tap in some cases when we already know they want to edit.
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contactViewController = [CNContactViewController viewControllerForNewContact:cnContact];
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// Default title is "New Contact". We could give a more descriptive title, but anything
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// seems redundant - the context is sufficiently clear.
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contactViewController.title = @"";
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} else {
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contactViewController = [CNContactViewController viewControllerForContact:cnContact];
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}
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}
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if (!contactViewController) {
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CNMutableContact *newContact = [CNMutableContact new];
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if (address.phoneNumber) {
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CNPhoneNumber *phoneNumber = [CNPhoneNumber phoneNumberWithStringValue:address.phoneNumber];
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CNLabeledValue<CNPhoneNumber *> *labeledPhoneNumber =
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[CNLabeledValue labeledValueWithLabel:CNLabelPhoneNumberMain value:phoneNumber];
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newContact.phoneNumbers = @[ labeledPhoneNumber ];
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}
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[self.databaseStorage readWithBlock:^(SDSAnyReadTransaction *transaction) {
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newContact.givenName = [self.profileManagerImpl givenNameForAddress:address transaction:transaction];
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newContact.familyName = [self.profileManagerImpl familyNameForAddress:address transaction:transaction];
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newContact.imageData
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= UIImagePNGRepresentation([self.profileManagerImpl profileAvatarForAddress:address
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downloadIfMissing:YES
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transaction:transaction]);
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}];
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if (updatedNameComponents) {
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newContact.givenName = updatedNameComponents.givenName;
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newContact.familyName = updatedNameComponents.familyName;
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}
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contactViewController = [CNContactViewController viewControllerForNewContact:newContact];
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}
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contactViewController.allowsActions = NO;
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contactViewController.allowsEditing = YES;
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contactViewController.edgesForExtendedLayout = UIRectEdgeNone;
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contactViewController.view.backgroundColor = Theme.backgroundColor;
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return contactViewController;
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}
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@end
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NS_ASSUME_NONNULL_END
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