mirror of https://github.com/oxen-io/session-ios
Matthew Chen
8 years ago
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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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NS_ASSUME_NONNULL_BEGIN
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@interface FingerprintViewScanController : UIViewController
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- (void)configureWithRecipientId:(NSString *)recipientId NS_SWIFT_NAME(configure(recipientId:));
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@end
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NS_ASSUME_NONNULL_END
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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 "FingerprintViewScanController.h"
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#import "Environment.h"
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#import "OWSContactsManager.h"
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#import "OWSQRCodeScanningViewController.h"
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#import "Signal-Swift.h"
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#import "UIColor+OWS.h"
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#import "UIFont+OWS.h"
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#import "UIUtil.h"
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#import "UIView+OWS.h"
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#import "UIViewController+CameraPermissions.h"
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#import <SignalServiceKit/OWSError.h>
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#import <SignalServiceKit/OWSFingerprint.h>
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#import <SignalServiceKit/OWSFingerprintBuilder.h>
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NS_ASSUME_NONNULL_BEGIN
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@interface FingerprintViewScanController () <OWSQRScannerDelegate>
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@property (nonatomic) TSStorageManager *storageManager;
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@property (nonatomic) OWSFingerprint *fingerprint;
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@property (nonatomic) NSString *contactName;
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@property (nonatomic) OWSQRCodeScanningViewController *qrScanningController;
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@end
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@implementation FingerprintViewScanController
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- (void)configureWithRecipientId:(NSString *)recipientId
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{
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OWSAssert(recipientId.length > 0);
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self.storageManager = [TSStorageManager sharedManager];
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OWSContactsManager *contactsManager = [Environment getCurrent].contactsManager;
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self.contactName = [contactsManager displayNameForPhoneIdentifier:recipientId];
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OWSRecipientIdentity *_Nullable recipientIdentity =
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[[OWSIdentityManager sharedManager] recipientIdentityForRecipientId:recipientId];
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OWSAssert(recipientIdentity);
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OWSFingerprintBuilder *builder =
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[[OWSFingerprintBuilder alloc] initWithStorageManager:self.storageManager contactsManager:contactsManager];
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self.fingerprint =
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[builder fingerprintWithTheirSignalId:recipientId theirIdentityKey:recipientIdentity.identityKey];
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}
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- (void)loadView
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{
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[super loadView];
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self.title = NSLocalizedString(@"SCAN_QR_CODE_VIEW_TITLE", @"Title for the 'scan QR code' view.");
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[self createViews];
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}
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- (void)createViews
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{
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UIColor *darkGrey = [UIColor colorWithRGBHex:0x404040];
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self.view.backgroundColor = [UIColor blackColor];
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self.qrScanningController = [OWSQRCodeScanningViewController new];
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self.qrScanningController.scanDelegate = self;
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[self.view addSubview:self.qrScanningController.view];
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[self.qrScanningController.view autoPinWidthToSuperview];
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[self.qrScanningController.view autoPinToTopLayoutGuideOfViewController:self withInset:0];
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UIView *footer = [UIView new];
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footer.backgroundColor = darkGrey;
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[self.view addSubview:footer];
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[footer autoPinWidthToSuperview];
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[footer autoPinToBottomLayoutGuideOfViewController:self withInset:0];
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[footer autoPinEdge:ALEdgeTop toEdge:ALEdgeBottom ofView:self.qrScanningController.view];
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UILabel *cameraInstructionLabel = [UILabel new];
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cameraInstructionLabel.text
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= NSLocalizedString(@"SCAN_CODE_INSTRUCTIONS", @"label presented once scanning (camera) view is visible.");
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cameraInstructionLabel.font = [UIFont ows_regularFontWithSize:14.f];
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cameraInstructionLabel.textColor = [UIColor whiteColor];
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cameraInstructionLabel.textAlignment = NSTextAlignmentCenter;
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cameraInstructionLabel.numberOfLines = 0;
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cameraInstructionLabel.lineBreakMode = NSLineBreakByWordWrapping;
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[footer addSubview:cameraInstructionLabel];
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[cameraInstructionLabel autoPinWidthToSuperviewWithMargin:16.f];
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[cameraInstructionLabel autoPinEdgeToSuperviewEdge:ALEdgeBottom withInset:10.f];
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[cameraInstructionLabel autoPinEdgeToSuperviewEdge:ALEdgeTop withInset:10.f];
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}
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- (void)viewWillAppear:(BOOL)animated
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{
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// In case we're returning from activity view that needed default system styles.
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[UIUtil applySignalAppearence];
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}
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- (void)viewWillDisappear:(BOOL)animated
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{
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[super viewWillDisappear:YES];
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}
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#pragma mark - Action
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- (void)viewDidAppear:(BOOL)animated
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{
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[super viewDidAppear:animated];
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[self ows_askForCameraPermissions:^{
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// Camera stops capturing when "sharing" while in capture mode.
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// Also, it's less obvious whats being "shared" at this point,
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// so just disable sharing when in capture mode.
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DDLogInfo(@"%@ Showing Scanner", self.tag);
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[self.qrScanningController startCapture];
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}
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failureCallback:^{
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[self.navigationController popViewControllerAnimated:YES];
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}];
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}
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#pragma mark - OWSQRScannerDelegate
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- (void)controller:(OWSQRCodeScanningViewController *)controller didDetectQRCodeWithData:(NSData *)data
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{
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[self verifyCombinedFingerprintData:data];
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}
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- (void)verifyCombinedFingerprintData:(NSData *)combinedFingerprintData
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{
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NSError *error;
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if ([self.fingerprint matchesLogicalFingerprintsData:combinedFingerprintData error:&error]) {
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[self showVerificationSucceeded];
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} else {
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[self showVerificationFailedWithError:error];
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}
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}
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- (void)showVerificationSucceeded
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{
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DDLogInfo(@"%@ Successfully verified privacy.", self.tag);
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NSString *successTitle = NSLocalizedString(@"SUCCESSFUL_VERIFICATION_TITLE", nil);
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NSString *dismissText = NSLocalizedString(@"DISMISS_BUTTON_TEXT", nil);
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NSString *descriptionFormat = NSLocalizedString(
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@"SUCCESSFUL_VERIFICATION_DESCRIPTION", @"Alert body after verifying privacy with {{other user's name}}");
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NSString *successDescription = [NSString stringWithFormat:descriptionFormat, self.contactName];
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UIAlertController *successAlertController =
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[UIAlertController alertControllerWithTitle:successTitle
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message:successDescription
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preferredStyle:UIAlertControllerStyleAlert];
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UIAlertAction *dismissAction = [UIAlertAction actionWithTitle:dismissText
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style:UIAlertActionStyleDefault
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handler:^(UIAlertAction *action) {
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[self dismissViewControllerAnimated:true completion:nil];
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}];
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[successAlertController addAction:dismissAction];
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[self presentViewController:successAlertController animated:YES completion:nil];
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}
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- (void)showVerificationFailedWithError:(NSError *)error
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{
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NSString *_Nullable failureTitle;
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if (error.code != OWSErrorCodeUserError) {
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failureTitle = NSLocalizedString(@"FAILED_VERIFICATION_TITLE", @"alert title");
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} // else no title. We don't want to show a big scary "VERIFICATION FAILED" when it's just user error.
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UIAlertController *alertController = [UIAlertController alertControllerWithTitle:failureTitle
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message:error.localizedDescription
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preferredStyle:UIAlertControllerStyleAlert];
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[alertController
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addAction:[UIAlertAction
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actionWithTitle:NSLocalizedString(@"RETRY_BUTTON_TEXT",
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@"Generic text for button that retries whatever the last action was.")
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style:UIAlertActionStyleDefault
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handler:^(UIAlertAction *action) {
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[self.qrScanningController startCapture];
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}]];
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UIAlertAction *dismissAction = [UIAlertAction actionWithTitle:NSLocalizedString(@"TXT_CANCEL_TITLE", nil)
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style:UIAlertActionStyleCancel
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handler:^(UIAlertAction *action) {
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[self.navigationController popViewControllerAnimated:YES];
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}];
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[alertController addAction:dismissAction];
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[self presentViewController:alertController animated:YES completion:nil];
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DDLogWarn(@"%@ Identity verification failed with error: %@", self.tag, error);
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}
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- (void)dismissViewControllerAnimated:(BOOL)animated completion:(nullable void (^)(void))completion
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{
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self.qrScanningController.view.hidden = YES;
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[super dismissViewControllerAnimated:animated completion:completion];
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}
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#pragma mark - Logging
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+ (NSString *)tag
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{
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return [NSString stringWithFormat:@"[%@]", self.class];
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}
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- (NSString *)tag
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{
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return self.class.tag;
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}
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@end
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NS_ASSUME_NONNULL_END
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@ -1,17 +1,15 @@
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//
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//
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// UIViewController+CameraPermissions.h
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// Copyright (c) 2017 Open Whisper Systems. All rights reserved.
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// Signal
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//
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// Created by Jarosław Pawlak on 18.10.2016.
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// Copyright © 2016 Open Whisper Systems. All rights reserved.
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//
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//
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#import <UIKit/UIKit.h>
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#import <UIKit/UIKit.h>
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NS_ASSUME_NONNULL_BEGIN
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NS_ASSUME_NONNULL_BEGIN
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@interface UIViewController (CameraPermissions)
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@interface UIViewController (CameraPermissions)
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- (void)ows_askForCameraPermissions:(void (^)())permissionsGrantedCallback;
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- (void)ows_askForCameraPermissions:(void (^)())permissionsGrantedCallback
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- (void)ows_askForCameraPermissions:(void (^)())permissionsGrantedCallback
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alertActionHandler:(nullable void (^)())alertActionHandler;
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failureCallback:(nullable void (^)())failureCallback;
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@end
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@end
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NS_ASSUME_NONNULL_END
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NS_ASSUME_NONNULL_END
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