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iOSIntegrity

Requirements

Good mood

Add Package Dependency

To add a package dependency to your Xcode project, Select Project -> Select Package Dependencies -> Click on plus button (lower left corner)

In the next window search following url https://github.com/tilakkap/iOSIntegrity and click Add Package

Select iOSIntegrity and click Add Package

Installation in IOS

Step 1: Create New Swift Class

Add a .swift file to your project, and name it IntegrityCheck.swift.

In IntegrityCheck.swift:

import Foundation
import iOSIntegrity

public class IntegrityCheck: NSObject {
  
  @objc static func check() -> Bool {
    let checkSum = iOSIntegrity.checkBundleCheckSum()
    return checkSum
  }
}

Step 2: Import Swift Files to ObjC Class

In AppDelegate.m:

#import "<#YourProjectName#>-Swift.h"

The file:<#YourProjectName#>-Swift.h should already be created automatically in your project, even if you can not see it.

Step 3: Add following code to application method in AppDelegate.m

before

[self.window makeKeyAndVisible];
//integrity
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
    NSLog(@"integrity start");
    bool ic = [IntegrityCheck check];
    
    if(ic == false) {
        dispatch_sync(dispatch_get_main_queue(), ^{
            UIAlertController* alert = [UIAlertController alertControllerWithTitle:@"INTEGRITY" message:@"Something went wrong" preferredStyle:UIAlertControllerStyleAlert];
            [alert addAction:[UIAlertAction actionWithTitle:NSLocalizedString(@"OK",@"confirm") style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
                // continue your work
                exit(1);
            }]];
            [self.window.rootViewController presentViewController:alert animated:YES completion: nil];
        });
    }
});

Install Build Phase

Step 1: Add custom Run Script in Build Phases

Select xcodeproj file of you project -> Select Target -> Select Build Phases -> Click on plus button (upper left corner) -> Select New Run Script Phase.

Xcode will add a empty script

Put following code in the script window

cd ${BUILD_DIR%Build/*}SourcePackages/checkouts/iOSIntegrity
SDKROOT=macosx
swift run -c release iOSIntegrityCli $METAL_LIBRARY_OUTPUT_DIR

Problems M1

Run following commands

sudo arch -x86_64 gem install ffi
cd ios/ && arch -x86_64 pod install

Problems React Native Version < 0.64

If you faced following build errors

Select your project in Xcode, and go to "Build Settings". Scroll down until you see "Search Paths", and finally, "Library Search Paths"

Replace $(TOOLCHAIN_DIR)/usr/lib/swift-5.0/$(PLATFORM_NAME) with $(SDKROOT)/usr/lib/swift.