Initial commit

.gitignore

@@ -1,3 +1,17 @@
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+/.idea/misc.xml
+.DS_Store
+/build
+/captures
+.cxx
+
 # Built application files
 *.apk
 *.ap_

README.md

@@ -1,2 +1,38 @@
-# SIMNumberSetter
-
+# SIM Number Setter
+
+SIM Number Setter is a small Xposed module that invokes normally unused Android System code to set 
+the "subscriber number" on the device's SIM card. This is the number displayed in the system 
+settings, and used in apps such as Google Messages, as well as being available to third party apps 
+with sufficient permissions.
+
+The number is not always set by carriers (leaving "Unknown"), or can be lost or invalid after 
+porting a number to a different SIM. 
+
+This small app allows you to fix it, permanently, using a rooted device with Xposed.
+
+**If you don't have a rooted device, or don't want to root your main device, you may wish to 
+consider rooting an old device, and temporarily putting your SIM into that device, using this app,
+and then putting it back in your main device - the fixed number will travel with it**
+
+### Important Notice
+
+Changing the SIM number is semi-permanent: the number change will survive reboots, uninstalling this
+app, even switching the SIM to a different device, but can be changed again at any time using this 
+app. 
+
+SIM Number Setter does NOT:
+- Change your actual phone number, no matter what you enter.
+- Unblock a network blocked SIM.\n- Give you free data or calls.
+- Change your IMEI.
+
+SIM Number Setter uses the built-in Android methods to write data to the SIM. 
+The app nor the developer are not responsible for issues with the process, including any damage to 
+the SIM or network issues.
+
+### Screenshots
+
+[![Screenshots](https://i.imgur.com/UNKADmrl.png)](https://i.imgur.com/UNKADmr.png)
+
+### Download
+
+[Download from releases page](https://github.com/KieronQuinn/SIMNumberSetter/releases)

app/.gitignore

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+/build

app/build.gradle

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+plugins {
+    id 'com.android.application'
+    id 'org.jetbrains.kotlin.android'
+}
+
+android {
+    compileSdk 32
+
+    defaultConfig {
+        applicationId "com.kieronquinn.app.simnumbersetter"
+        minSdk 26
+        targetSdk 32
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+    buildFeatures {
+        viewBinding true
+    }
+}
+
+dependencies {
+    implementation 'androidx.core:core-ktx:1.7.0'
+    implementation 'androidx.appcompat:appcompat:1.4.1'
+    implementation 'com.google.android.material:material:1.5.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.3'
+    implementation 'com.github.KieronQuinn:MonetCompat:0.4.1'
+    implementation 'androidx.palette:palette:1.0.0'
+    implementation 'io.insert-koin:koin-android:3.1.5'
+    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.6.0'
+    implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.4.0'
+    implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.4.0'
+    implementation 'com.github.topjohnwu.libsu:core:3.2.1'
+    compileOnly project(path: ':systemstubs')
+    compileOnly 'de.robv.android.xposed:api:82'
+}

app/proguard-rules.pro

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

app/release/output-metadata.json

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+{
+  "version": 3,
+  "artifactType": {
+    "type": "APK",
+    "kind": "Directory"
+  },
+  "applicationId": "com.kieronquinn.app.simnumbersetter",
+  "variantName": "release",
+  "elements": [
+    {
+      "type": "SINGLE",
+      "filters": [],
+      "attributes": [],
+      "versionCode": 1,
+      "versionName": "1.0",
+      "outputFile": "app-release.apk"
+    }
+  ],
+  "elementType": "File"
+}

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    package="com.kieronquinn.app.simnumbersetter">
+
+    <uses-permission android:name="android.permission.DUMP"
+        tools:ignore="ProtectedPermissions" />
+
+    <application
+        android:allowBackup="false"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher"
+        android:name=".Application"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.PhoneNumberSetter">
+        <activity
+            android:name="com.kieronquinn.app.simnumbersetter.ui.activities.MainActivity"
+            android:exported="true"
+            android:windowSoftInputMode="adjustPan">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+        <meta-data
+            android:name="xposedmodule"
+            android:value="true"/>
+        <meta-data
+            android:name="xposeddescription"
+            android:value="@string/xposed_desc"/>
+        <meta-data
+            android:name="xposedminversion"
+            android:value="90"/>
+        <meta-data
+            android:name="xposedscope"
+            android:resource="@array/scope"/>
+
+    </application>
+
+    <queries>
+        <package android:name="com.android.phone"/>
+    </queries>
+
+</manifest>

app/src/main/aidl/com/kieronquinn/app/simnumbersetter/IPhoneNumberSetter.aidl

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+package com.kieronquinn.app.simnumbersetter;
+
+import android.os.Message;
+
+interface IPhoneNumberSetter {
+
+    boolean setLine1Number(String number, in Message onComplete);
+    String getLine1Number();
+
+}

app/src/main/assets/xposed_init

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+com.kieronquinn.app.simnumbersetter.Xposed

app/src/main/java/com/kieronquinn/app/simnumbersetter/Application.kt

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+package com.kieronquinn.app.simnumbersetter
+
+import android.app.Application
+import com.kieronquinn.app.simnumbersetter.repositories.*
+import com.kieronquinn.app.simnumbersetter.ui.screens.main.MainViewModel
+import com.kieronquinn.app.simnumbersetter.ui.screens.main.MainViewModelImpl
+import org.koin.android.ext.koin.androidContext
+import org.koin.androidx.viewmodel.dsl.viewModel
+import org.koin.core.context.startKoin
+import org.koin.dsl.module
+
+class Application: Application() {
+
+    private val repositories = module {
+        single<PermissionRepository> { PermissionRepositoryImpl(get(), get()) }
+        single<RootRepository> { RootRepositoryImpl() }
+        single<ServiceRepository> { ServiceRepositoryImpl(get()) }
+    }
+
+    private val viewModels = module {
+        viewModel<MainViewModel> { MainViewModelImpl(get(), get(), get()) }
+    }
+
+    override fun onCreate() {
+        super.onCreate()
+        startKoin {
+            androidContext(this@Application)
+            modules(repositories, viewModels)
+        }
+    }
+
+}

app/src/main/java/com/kieronquinn/app/simnumbersetter/Xposed.kt

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+package com.kieronquinn.app.simnumbersetter
+
+import android.content.Intent
+import com.kieronquinn.app.simnumbersetter.service.PhoneNumberSetterService
+import com.kieronquinn.app.simnumbersetter.utils.extensions.checkSecurity
+import de.robv.android.xposed.IXposedHookLoadPackage
+import de.robv.android.xposed.XC_MethodHook
+import de.robv.android.xposed.XposedHelpers
+import de.robv.android.xposed.callbacks.XC_LoadPackage
+
+/**
+ *  Xposed hook to allow binding to TelephonyDebugService (an exported, but protected service in
+ *  com.android.phone), returning [IPhoneNumberSetter]. This can then be accessed via the UI
+ *  and used to query and set the number.
+ */
+class Xposed: IXposedHookLoadPackage {
+
+    override fun handleLoadPackage(lpparam: XC_LoadPackage.LoadPackageParam) {
+        if(lpparam.packageName != "com.android.phone") return
+        XposedHelpers.findAndHookMethod(
+            "com.android.phone.TelephonyDebugService",
+            lpparam.classLoader,
+            "onBind",
+            Intent::class.java,
+            object: XC_MethodHook() {
+                override fun beforeHookedMethod(param: MethodHookParam) {
+                    super.beforeHookedMethod(param)
+                    param.onBind(param.args[0] as Intent)
+                }
+            }
+        )
+    }
+
+    private fun XC_MethodHook.MethodHookParam.onBind(intent: Intent) {
+        if(intent.checkSecurity()){
+            result = PhoneNumberSetterService()
+        }
+    }
+
+}

app/src/main/java/com/kieronquinn/app/simnumbersetter/repositories/PermissionRepository.kt

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+package com.kieronquinn.app.simnumbersetter.repositories
+
+import android.content.Context
+import android.content.pm.PackageManager
+import com.kieronquinn.app.simnumbersetter.BuildConfig
+import com.kieronquinn.app.simnumbersetter.repositories.PermissionRepository.Companion.PERMISSION_DUMP
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+
+interface PermissionRepository {
+
+    companion object {
+        internal const val PERMISSION_DUMP = "android.permission.DUMP"
+    }
+
+    suspend fun grantDumpPermission(): Boolean
+
+}
+
+class PermissionRepositoryImpl(
+    private val context: Context,
+    private val rootRepository: RootRepository
+): PermissionRepository {
+
+    private fun hasDumpPermission(): Boolean {
+        return context.checkCallingOrSelfPermission(PERMISSION_DUMP) == PackageManager.PERMISSION_GRANTED
+    }
+
+    private suspend fun runGrantCommand() {
+        rootRepository.runRootCommand(
+            "pm grant ${BuildConfig.APPLICATION_ID} $PERMISSION_DUMP"
+        )
+    }
+
+    override suspend fun grantDumpPermission(): Boolean {
+        return withContext(Dispatchers.IO) {
+            if(!hasDumpPermission()){
+                runGrantCommand()
+                hasDumpPermission()
+            }else true
+        }
+    }
+
+}