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Move jailbreak check to hellocodenameone startup #4404

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Merged
shai-almog merged 1 commit into from
Jan 12, 2026
+18 −4
Merged

Move jailbreak check to hellocodenameone startup #4404

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16 changes: 13 additions & 3 deletions Ports/iOSPort/nativeSources/CN1JailbreakDetector.m
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Original file line number Diff line number Diff line change
Expand Up @@ -27,11 +27,19 @@
#import <dlfcn.h>
#import <sys/sysctl.h>
#import <mach-o/dyld.h>
#import <unistd.h>
#import <stdlib.h>

void cn1DetectJailbreakBypassesAndExit() {
#if (TARGET_IPHONE_SIMULATOR)
return;
#endif
// Detect common dynamic library injection used by Frida/Objection and similar tools
if (getenv("DYLD_INSERT_LIBRARIES") != NULL) {
NSLog(@"DYLD_INSERT_LIBRARIES detected.");
exit(0);
}

// List of known libraries used by bypass tools like Liberty Lite and Substrate
NSArray *bypassLibraries = @[
@"LibertyLite.dylib",
Expand Down Expand Up @@ -60,10 +68,11 @@ void cn1DetectJailbreakBypassesAndExit() {
// Additional check for file access to system areas (indicates potential bypass)
NSArray *restrictedPaths = @[
@"/Applications/Cydia.app",
@"/Library/MobileSubstrate/MobileSubstrate.dylib",
@"/usr/sbin/sshd",
@"/bin/bash",
@"/etc/apt",
@"/Library/MobileSubstrate/MobileSubstrate.dylib"
@"/private/var/lib/apt/"
];

NSFileManager *fileManager = [NSFileManager defaultManager];
Expand All @@ -78,8 +87,9 @@ void cn1DetectJailbreakBypassesAndExit() {
// Check if we can write to a restricted area (bypasses may allow this)
NSString *testPath = @"/private/jailbreakTest.txt";
NSError *error;
[@"Test" writeToFile:testPath atomically:YES encoding:NSUTF8StringEncoding error:&error];
if (!error) {
BOOL wroteFile = [@"Test" writeToFile:testPath atomically:YES encoding:NSUTF8StringEncoding error:&error];
if (wroteFile && !error) {
[fileManager removeItemAtPath:testPath error:nil];
// Able to write to restricted area, exit the app
NSLog(@"Write access to restricted area detected.");
exit(0); // Exit the app if write access to restricted areas is detected
Expand Down
6 changes: 5 additions & 1 deletion ...eone/common/src/main/kotlin/com/codenameone/examples/hellocodenameone/HelloCodenameOne.kt
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Expand Up @@ -2,18 +2,22 @@ package com.codenameone.examples.hellocodenameone

import com.codename1.system.Lifecycle
import com.codename1.testing.TestReporting
import com.codename1.ui.Display
import com.codenameone.examples.hellocodenameone.tests.Cn1ssDeviceRunner
import com.codenameone.examples.hellocodenameone.tests.Cn1ssDeviceRunnerReporter
import com.codenameone.examples.hellocodenameone.tests.KotlinUiTest

open class HelloCodenameOne : Lifecycle() {
override fun init(context: Any?) {
super.init(context)
check(!Display.getInstance().isJailbrokenDevice()) {
"Jailbroken device detected by Display.isJailbrokenDevice()."
}
Cn1ssDeviceRunner.addTest(KotlinUiTest())
TestReporting.setInstance(Cn1ssDeviceRunnerReporter())
}

override fun runApp() {
Thread(Runnable { Cn1ssDeviceRunner().runSuite() }).start()
}
}
}
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