diff options
Diffstat (limited to 'src/android/app/src')
| -rw-r--r-- | src/android/app/src/main/java/org/citron/citron_emu/activities/EmulationActivity.kt | 4 | ||||
| -rw-r--r-- | src/android/app/src/main/java/org/citron/citron_emu/utils/LicenseVerifier.kt | 69 |
2 files changed, 73 insertions, 0 deletions
diff --git a/src/android/app/src/main/java/org/citron/citron_emu/activities/EmulationActivity.kt b/src/android/app/src/main/java/org/citron/citron_emu/activities/EmulationActivity.kt index 816194a9a..bef01f156 100644 --- a/src/android/app/src/main/java/org/citron/citron_emu/activities/EmulationActivity.kt +++ b/src/android/app/src/main/java/org/citron/citron_emu/activities/EmulationActivity.kt @@ -52,6 +52,7 @@ import org.citron.citron_emu.utils.NativeConfig import org.citron.citron_emu.utils.NfcReader import org.citron.citron_emu.utils.ParamPackage import org.citron.citron_emu.utils.ThemeHelper +import org.citron.citron_emu.utils.LicenseVerifier import java.text.NumberFormat import kotlin.math.roundToInt @@ -79,6 +80,9 @@ class EmulationActivity : AppCompatActivity(), SensorEventListener { super.onCreate(savedInstanceState) + // Add license verification at the start + LicenseVerifier.verifyLicense(this) + InputHandler.updateControllerData() val players = NativeConfig.getInputSettings(true) var hasConfiguredControllers = false diff --git a/src/android/app/src/main/java/org/citron/citron_emu/utils/LicenseVerifier.kt b/src/android/app/src/main/java/org/citron/citron_emu/utils/LicenseVerifier.kt new file mode 100644 index 000000000..5392444d1 --- /dev/null +++ b/src/android/app/src/main/java/org/citron/citron_emu/utils/LicenseVerifier.kt @@ -0,0 +1,69 @@ +package org.citron.citron_emu.utils + +import android.app.Activity +import android.app.AlertDialog +import android.content.ClipData +import android.content.ClipboardManager +import android.content.Context +import android.content.pm.PackageManager +import android.content.pm.Signature +import android.os.Build +import android.os.Process +import kotlin.system.exitProcess + +object LicenseVerifier { + private const val EXPECTED_PACKAGE = "org.citron.citron_emu" + private const val OFFICIAL_HASH = "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" + + fun verifyLicense(activity: Activity) { + val currentPackage = activity.packageName + val isDebugBuild = currentPackage.endsWith(".debug") + val isEaBuild = currentPackage.endsWith(".ea") + + // Check package name + if (!isDebugBuild && !isEaBuild && currentPackage != EXPECTED_PACKAGE) { + showViolationDialog(activity) + return + } + + try { + val packageInfo = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) { + activity.packageManager.getPackageInfo( + currentPackage, + PackageManager.PackageInfoFlags.of(PackageManager.GET_SIGNATURES.toLong()) + ) + } else { + @Suppress("DEPRECATION") + activity.packageManager.getPackageInfo(currentPackage, PackageManager.GET_SIGNATURES) + } + + if (!verifySignature(packageInfo.signatures)) { + showViolationDialog(activity) + } + + } catch (e: Exception) { + showViolationDialog(activity) + } + } + + private fun verifySignature(signatures: Array<Signature>?): Boolean { + if (signatures == null || signatures.isEmpty()) return false + val currentSignature = signatures[0].toCharsString() + return currentSignature == OFFICIAL_HASH + } + + private fun showViolationDialog(activity: Activity) { + AlertDialog.Builder(activity) + .setTitle("License Violation") + .setMessage("This appears to be a modified version of Citron Emulator. " + + "Redistributing modified versions without source code violates the GPLv3 License. " + + "The application will now close.") + .setCancelable(false) + .setPositiveButton("Exit") { _, _ -> + activity.finish() + Process.killProcess(Process.myPid()) + exitProcess(1) + } + .show() + } +}
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