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/*
* Copyright © 2014-2021 The Android Password Store Authors. All Rights Reserved.
* SPDX-License-Identifier: GPL-3.0-only
*/
package me.msfjarvis.openpgpktx.util
import android.content.ComponentName
import android.content.Context
import android.content.Intent
import android.content.ServiceConnection
import android.os.IBinder
import org.openintents.openpgp.IOpenPgpService2
public class OpenPgpServiceConnection(context: Context, providerPackageName: String?) {
// callback interface
public interface OnBound {
public fun onBound(service: IOpenPgpService2)
public fun onError(e: Exception)
}
private val mApplicationContext: Context = context.applicationContext
public var service: IOpenPgpService2? = null
private set
private val mProviderPackageName: String? = providerPackageName
private var mOnBoundListener: OnBound? = null
/**
* Create new connection with callback
*
* @param context
* @param providerPackageName specify package name of OpenPGP provider,
* e.g., "org.sufficientlysecure.keychain"
* @param onBoundListener callback, executed when connection to service has been established
*/
public constructor(
context: Context,
providerPackageName: String?,
onBoundListener: OnBound?
) : this(context, providerPackageName) {
mOnBoundListener = onBoundListener
}
public val isBound: Boolean
get() = service != null
private val mServiceConnection: ServiceConnection = object : ServiceConnection {
override fun onServiceConnected(name: ComponentName, service: IBinder) {
this@OpenPgpServiceConnection.service = IOpenPgpService2.Stub.asInterface(service)
mOnBoundListener?.onBound(this@OpenPgpServiceConnection.service!!)
}
override fun onServiceDisconnected(name: ComponentName) {
service = null
}
}
/**
* If not already bound, bind to service!
*/
public fun bindToService() {
if (service == null) {
// if not already bound...
try {
val serviceIntent = Intent(OpenPgpApi.SERVICE_INTENT_2)
// NOTE: setPackage is very important to restrict the intent to this provider only!
serviceIntent.setPackage(mProviderPackageName)
val connect = mApplicationContext.bindService(
serviceIntent, mServiceConnection,
Context.BIND_AUTO_CREATE
)
if (!connect) {
throw Exception("bindService() returned false!")
}
} catch (e: Exception) {
mOnBoundListener?.onError(e)
}
} else {
// already bound, but also inform client about it with callback
mOnBoundListener?.onBound(service!!)
}
}
public fun unbindFromService() {
mApplicationContext.unbindService(mServiceConnection)
}
}
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