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‎.gitignore

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*.iml
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.gradle
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/local.properties
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/.idea
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/gradle
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.DS_Store
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/build
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/captures
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.externalNativeBuild
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.cxx

‎README.md

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# ALCore
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Android [c-lightning](https://github.com/ElementsProject/lightning) wallet based on [clightning_ndk](https://github.com/lvaccaro/clightning_ndk).
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>> This is a experimenting lightning wallet for testnet. It is only for development purpose, don't use on mainnet.
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#### References:
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- [ABCore](https://github.com/greenaddress/abcore) Android Bitcoin Core wallet
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- [bitcoin_ndk](https://github.com/greenaddress/bitcoin_ndk) ndk build of bitcoin core and knots
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- [clightning_ndk](https://github.com/lvaccaro/clightning_ndk) android cross-compilation of c-lightning for Android >= 24 Api
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- [c-lightning](https://github.com/ElementsProject/lightning) a Lightning Network implementation in C

‎app/.gitignore

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/build

‎app/build.gradle

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apply plugin: 'com.android.application'
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apply plugin: 'kotlin-android'
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apply plugin: 'kotlin-android-extensions'
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android {
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compileSdkVersion 29
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buildToolsVersion "29.0.2"
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defaultConfig {
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applicationId "com.lvaccaro.alcore"
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minSdkVersion 19
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targetSdkVersion 29
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versionCode 1
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versionName "1.0"
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testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
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}
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buildTypes {
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release {
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minifyEnabled false
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proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
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}
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}
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}
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dependencies {
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implementation fileTree(dir: 'libs', include: ['*.jar'])
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implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
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implementation 'androidx.appcompat:appcompat:1.1.0'
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implementation 'androidx.core:core-ktx:1.0.2'
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implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
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implementation 'androidx.preference:preference:1.1.0-alpha05'
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implementation 'org.tukaani:xz:1.8'
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implementation 'org.apache.commons:commons-compress:1.19'
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implementation 'com.google.zxing:core:3.4.0'
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implementation 'com.google.android.material:material:1.0.0'
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implementation "org.jetbrains.anko:anko-commons:0.10.4"
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testImplementation 'junit:junit:4.12'
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androidTestImplementation 'androidx.test:runner:1.2.0'
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androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
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}

‎app/proguard-rules.pro

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# Add project specific ProGuard rules here.
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# You can control the set of applied configuration files using the
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# proguardFiles setting in build.gradle.
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#
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# For more details, see
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# http://developer.android.com/guide/developing/tools/proguard.html
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# If your project uses WebView with JS, uncomment the following
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# and specify the fully qualified class name to the JavaScript interface
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# class:
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#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
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# public *;
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#}
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# Uncomment this to preserve the line number information for
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# debugging stack traces.
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#-keepattributes SourceFile,LineNumberTable
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# If you keep the line number information, uncomment this to
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# hide the original source file name.
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#-renamesourcefileattribute SourceFile

‎app/src/androidTest/java/com/lvaccaro/alcore/ExampleInstrumentedTest.kt

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package com.lvaccaro.alcore
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import androidx.test.platform.app.InstrumentationRegistry
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import androidx.test.ext.junit.runners.AndroidJUnit4
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import org.junit.Test
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import org.junit.runner.RunWith
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import org.junit.Assert.*
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/**
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* Instrumented test, which will execute on an Android device.
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*
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* See [testing documentation](http://d.android.com/tools/testing).
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*/
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@RunWith(AndroidJUnit4::class)
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class ExampleInstrumentedTest {
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@Test
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fun useAppContext() {
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// Context of the app under test.
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val appContext = InstrumentationRegistry.getInstrumentation().targetContext
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assertEquals("com.lvaccaro.alcore", appContext.packageName)
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}
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}

‎app/src/main/AndroidManifest.xml

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.lvaccaro.alcore">
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<uses-permission android:name="android.permission.INTERNET" />
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<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
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<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
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<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
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<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
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<uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
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<application
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android:allowBackup="true"
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android:icon="@mipmap/ic_launcher"
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android:label="@string/app_name"
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android:roundIcon="@mipmap/ic_launcher_round"
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android:supportsRtl="true"
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android:theme="@style/AppTheme">
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<activity
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android:name=".LogActivity"
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android:label="@string/title_activity_log"
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android:parentActivityName=".MainActivity"
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android:theme="@style/AppTheme.NoActionBar">
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<meta-data
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android:name="android.support.PARENT_ACTIVITY"
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android:value="com.lvaccaro.alcore.MainActivity" />
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</activity>
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<activity
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android:name=".SettingsActivity"
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android:label="@string/title_activity_settings"
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android:parentActivityName=".MainActivity">
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<meta-data
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android:name="android.support.PARENT_ACTIVITY"
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android:value="com.lvaccaro.alcore.MainActivity" />
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</activity>
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<activity
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android:name=".ConsoleActivity"
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android:label="@string/title_activity_console"
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android:parentActivityName=".MainActivity">
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<meta-data
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android:name="android.support.PARENT_ACTIVITY"
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android:value="com.lvaccaro.alcore.MainActivity" />
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</activity>
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<activity android:name=".MainActivity">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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<service
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android:name=".LightningService"
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android:exported="false" />
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</application>
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</manifest>

‎app/src/main/java/com/lvaccaro/alcore/ConsoleActivity.kt

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package com.lvaccaro.alcore
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import android.os.AsyncTask
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import android.os.Build
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import android.os.Bundle
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import android.text.method.KeyListener
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import android.text.method.ScrollingMovementMethod
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import android.view.KeyEvent
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import android.view.View
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import android.view.WindowManager
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import android.view.inputmethod.EditorInfo
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import android.widget.EditText
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import android.widget.ImageButton
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import android.widget.Toast
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import androidx.appcompat.app.AlertDialog
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import com.google.android.material.snackbar.Snackbar
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import androidx.appcompat.app.AppCompatActivity
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import kotlinx.android.synthetic.main.activity_log.*
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import org.jetbrains.anko.doAsync
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import java.io.File
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import java.lang.Exception
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import java.util.*
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import kotlin.math.log
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class ConsoleActivity : AppCompatActivity() {
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lateinit var text: EditText
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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setContentView(R.layout.activity_console)
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supportActionBar?.setDisplayHomeAsUpEnabled(true)
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val editText = findViewById<EditText>(R.id.editText)
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text = findViewById<EditText>(R.id.text)
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editText.hint = "help"
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findViewById<ImageButton>(R.id.send).setOnClickListener {
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val text = editText.text.toString()
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if (text != "") {
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CommandTask().execute(text)
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}
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}
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}
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inner class CommandTask : AsyncTask<String, Int, String>() {
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lateinit var params: String
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override fun onPreExecute() {
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super.onPreExecute()
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editText.setText("")
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}
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override fun doInBackground(vararg params: String): String {
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this.params = params[0]
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val args = params[0].split(" ").toTypedArray()
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try {
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val res = LightningCli().exec(this@ConsoleActivity, args, false)
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val output = LightningCli().toString(res)
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return output
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}catch (e: Exception) {
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e.printStackTrace()
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return e.localizedMessage
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}
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}
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override fun onPostExecute(result: String?) {
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super.onPostExecute(result)
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text.append("$ lightning-cli $params\n")
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text.append(result ?: "")
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text.append("\n")
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}
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}
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}

‎app/src/main/java/com/lvaccaro/alcore/LightningCli.kt

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package com.lvaccaro.alcore
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import android.content.Context
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import android.os.Build
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import org.json.JSONObject
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import java.io.BufferedReader
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import java.io.File
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import java.io.InputStream
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import java.io.OutputStream
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import java.util.logging.Logger
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class LightningCli {
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val command = "lightning-cli"
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val log = Logger.getLogger(LightningService::class.java.name)
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@Throws(Exception::class)
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fun exec(c: Context, options: Array<String>, json: Boolean = true): InputStream {
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val binaryDir = rootDir(c)
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val lightningDir = File(rootDir(c), ".lightning")
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val args =
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arrayOf( String.format("%s/%s", binaryDir.canonicalPath, command),
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String.format("--lightning-dir=%s", lightningDir.path),
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String.format("--%s", if (json === true) "json" else "raw" ))
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val pb = ProcessBuilder((args + options).asList())
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pb.directory(binaryDir)
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//pb.redirectErrorStream(true)
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val process = pb.start()
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val code = process.waitFor()
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if (code == null || code != 0) {
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val error = toString(process.errorStream)
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val input = toString(process.inputStream)
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log.info(error)
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log.info(input)
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throw Exception(if(!error.isEmpty()) error else input)
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}
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return process.inputStream
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}
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fun toJSONObject(stream: InputStream): JSONObject {
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log.info("--- start ---")
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val text = toString(stream)
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val json = JSONObject(text)
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log.info(json.toString())
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log.info("--- end ---")
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return json
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}
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fun toString(stream: InputStream): String {
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val reader = stream.bufferedReader()
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val builder = StringBuilder()
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var line = reader.readLine()
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while (line != null) {
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log.info(line)
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if (!line.startsWith("**")) {
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builder.append(line)
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}
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line = reader.readLine()
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}
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return builder.toString()
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}
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fun rootDir(c: Context): File {
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
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return c.noBackupFilesDir
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}
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return c.filesDir
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}
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}

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