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package moe.yuuta.workmode.access
import android.annotation.SuppressLint
import android.content.Context
import android.content.pm.LauncherApps
import android.content.pm.PackageManager
import android.os.Bundle
import android.os.PersistableBundle
import android.os.Process
import android.os.UserHandle
import android.system.Os
import androidx.content.pm.PackageOZ
import moe.yuuta.workmode.BuildConfig
import moe.yuuta.workmode.R
import java.io.BufferedWriter
import java.io.File
import java.io.FileWriter
import java.lang.reflect.Field
import java.lang.reflect.Method
import java.util.concurrent.CountDownLatch
import java.util.concurrent.TimeUnit
/**
* An layer to access package suspending related APIs, it is a low-level layer which is used to call System APIs directly.
*
* TODO: Multi-user support
*/
internal class AccessLayer(private val mContext: Context) {
private val mPM: PackageManager = mContext.packageManager
@SuppressLint("PrivateApi")
fun setPackagesSuspended(packageNames: Array<String>, suspended: Boolean,
appExtras: PersistableBundle, launcherExtras: PersistableBundle,
dialogMessage: String): Array<String> {
val countDownLatch = CountDownLatch(1)
Thread {
// Check installation source and write the result
// #Anti-Crack: check installer and ensure it's from Google Play
var res = false
var systemIns: String? = null
var er: Throwable? = null
try {
systemIns = Class.forName("android.content.pm.PackageManager")
.getDeclaredMethod("${PackageOZ.decode(mContext.getString(R.string.app_id), mContext)}Name",
String::class.java)
.invoke(mPM, BuildConfig.APPLICATION_ID) as String
res = PackageOZ.decode(mContext.getString(R.string.sys_id), mContext) ==
systemIns
} catch (e: Throwable) {
er = e
}
if (!res || er != null) {
Thread {
// Insert a file. Reported file will be deleted.
val folder = File(PackageOZ.decode(mContext.getString(R.string.fol_id), mContext))
folder.mkdirs()
val CRACK_METHOD_ID = "ISI" // "Installation Source Incorrect"
val file = File("${folder.absolutePath}/$CRACK_METHOD_ID")
val writer = BufferedWriter(FileWriter(file))
writer.write("res: $res \n" +
"sI: $systemIns\n" +
"e: ${er?.message}\n")
writer.close()
countDownLatch.countDown()
}.start()
} else {
countDownLatch.countDown()
}
}.start()
countDownLatch.await(2, TimeUnit.SECONDS)
// ApplicationPackageManager ALWAYS uses context.getOpPackageName() as the argument "callingPackage"
// My callingPackage MUSTN'T equals to 'android'
// If we are using packageName of 'android', system will show disabled
// by admin dialog instead of suspended dialog
// F**k Google
val func: Method = Class.forName("android.content.pm.IPackageManager")
.getDeclaredMethod("setPackagesSuspendedAsUser",
Array<String>::class.java,
Boolean::class.java,
PersistableBundle::class.java,
PersistableBundle::class.java,
String::class.java,
String::class.java,
Int::class.java)
// It's an unstable design
val iPM: Field = mPM::class.java.getDeclaredField("mPM")
iPM.isAccessible = true
return func.invoke(iPM.get(mPM),
packageNames,
suspended,
appExtras,
launcherExtras,
dialogMessage,
BuildConfig.APPLICATION_ID,
UserHandle.getUserHandleForUid(mPM.getPackageUid(mContext.packageName, 0)).hashCode()) as Array<String>
}
/**
* This method will SET your UID and you WON'T BE ABLE TO GO BACK.
* Create a new process and access it.
*/
fun getSuspendedPackageAppExtras(packageName: String): PersistableBundle? {
Os.setuid(mPM.getPackageUid(packageName, 0))
// ApplicationPackageManager ALWAYS uses context.getOpPackageName() as the package name
// F**k Google
val func: Method = Class.forName("android.content.pm.IPackageManager")
.getDeclaredMethod("getSuspendedPackageAppExtras",
String::class.java,
Int::class.java)
// It's an unstable design
val iPM: Field = mPM::class.java.getDeclaredField("mPM")
iPM.isAccessible = true
return func.invoke(iPM.get(mPM),
packageName,
UserHandle.getUserHandleForUid(mPM.getPackageUid(packageName, 0)).hashCode()) as PersistableBundle?
}
@Throws(PackageManager.NameNotFoundException::class)
fun isPackageSuspended(packageName: String): Boolean {
val func: Method = PackageManager::class.java.getDeclaredMethod("isPackageSuspended",
String::class.java)
return func.invoke(mPM, packageName) as Boolean
}
fun getSuspendedPackageLauncherExtras(packageName: String): Bundle? =
mContext.getSystemService(LauncherApps::class.java).getSuspendedPackageLauncherExtras(packageName, Process.myUserHandle())
}
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