From 55c8b4edbd71159d64f86ca02df16f3d5f75c52d Mon Sep 17 00:00:00 2001 From: "U-SOPHIE\\yohan" Date: Mon, 8 Apr 2024 23:13:25 +0700 Subject: [PATCH] first version --- .gitignore | 16 + LICENSE | 674 ++++++++++++++++++ README.md | 32 + app/.gitignore | 1 + app/build.gradle.kts | 115 +++ app/proguard-rules.pro | 21 + .../ExampleInstrumentedTest.java | 26 + app/src/main/AndroidManifest.xml | 40 ++ app/src/main/cpp/CMakeLists.txt | 37 + app/src/main/cpp/native-lib.cpp | 287 ++++++++ app/src/main/cpp/zygisk.h | 384 ++++++++++ .../zygiskreflutter/AboutActivity.java | 55 ++ .../zygiskreflutter/AppDetailActivity.java | 401 +++++++++++ .../zygiskreflutter/AppListAdapter.java | 100 +++ .../zygiskreflutter/DownloadFileTask.java | 80 +++ .../zygiskreflutter/EngineHashInfo.java | 119 ++++ .../zygiskreflutter/MainActivity.java | 173 +++++ .../zygiskreflutter/SetHostActivity.java | 61 ++ .../com/tinyhack/zygiskreflutter/Util.java | 52 ++ .../res/drawable/butterfly_svgrepo_com.xml | 9 + .../res/drawable/ic_launcher_background.xml | 170 +++++ .../res/drawable/ic_launcher_foreground.xml | 9 + app/src/main/res/layout/activity_about.xml | 65 ++ .../main/res/layout/activity_app_detail.xml | 121 ++++ app/src/main/res/layout/activity_main.xml | 30 + app/src/main/res/layout/activity_set_host.xml | 41 ++ app/src/main/res/layout/list_item.xml | 11 + app/src/main/res/menu/drawer_menu.xml | 14 + app/src/main/res/menu/top_menu.xml | 13 + .../main/res/mipmap-anydpi/ic_launcher.xml | 6 + .../res/mipmap-anydpi/ic_launcher_round.xml | 6 + app/src/main/res/mipmap-hdpi/ic_launcher.webp | Bin 0 -> 1404 bytes .../res/mipmap-hdpi/ic_launcher_round.webp | Bin 0 -> 2898 bytes app/src/main/res/mipmap-mdpi/ic_launcher.webp | Bin 0 -> 982 bytes .../res/mipmap-mdpi/ic_launcher_round.webp | Bin 0 -> 1772 bytes .../main/res/mipmap-xhdpi/ic_launcher.webp | Bin 0 -> 1900 bytes .../res/mipmap-xhdpi/ic_launcher_round.webp | Bin 0 -> 3918 bytes .../main/res/mipmap-xxhdpi/ic_launcher.webp | Bin 0 -> 2884 bytes .../res/mipmap-xxhdpi/ic_launcher_round.webp | Bin 0 -> 5914 bytes .../main/res/mipmap-xxxhdpi/ic_launcher.webp | Bin 0 -> 3844 bytes .../res/mipmap-xxxhdpi/ic_launcher_round.webp | Bin 0 -> 7778 bytes app/src/main/res/values-night/themes.xml | 16 + app/src/main/res/values/colors.xml | 10 + app/src/main/res/values/ids.xml | 4 + app/src/main/res/values/strings.xml | 5 + app/src/main/res/values/themes.xml | 16 + app/src/main/res/xml/backup_rules.xml | 13 + .../main/res/xml/data_extraction_rules.xml | 19 + .../zygiskreflutter/ExampleUnitTest.java | 17 + build.gradle.kts | 4 + gradle.properties | 21 + gradle/libs.versions.toml | 22 + gradle/wrapper/gradle-wrapper.jar | Bin 0 -> 59203 bytes gradle/wrapper/gradle-wrapper.properties | 6 + gradlew | 185 +++++ gradlew.bat | 89 +++ .../META-INF/com/google/android/update-binary | 33 + .../com/google/android/updater-script | 1 + module/module.prop | 7 + settings.gradle.kts | 24 + 60 files changed, 3661 insertions(+) create mode 100644 .gitignore create mode 100644 LICENSE create mode 100644 README.md create mode 100644 app/.gitignore create mode 100644 app/build.gradle.kts create mode 100644 app/proguard-rules.pro create mode 100644 app/src/androidTest/java/com/tinyhack/zygiskreflutter/ExampleInstrumentedTest.java create mode 100644 app/src/main/AndroidManifest.xml create mode 100644 app/src/main/cpp/CMakeLists.txt create mode 100644 app/src/main/cpp/native-lib.cpp create mode 100644 app/src/main/cpp/zygisk.h create mode 100644 app/src/main/java/com/tinyhack/zygiskreflutter/AboutActivity.java create mode 100644 app/src/main/java/com/tinyhack/zygiskreflutter/AppDetailActivity.java create mode 100644 app/src/main/java/com/tinyhack/zygiskreflutter/AppListAdapter.java create mode 100644 app/src/main/java/com/tinyhack/zygiskreflutter/DownloadFileTask.java create mode 100644 app/src/main/java/com/tinyhack/zygiskreflutter/EngineHashInfo.java create mode 100644 app/src/main/java/com/tinyhack/zygiskreflutter/MainActivity.java create mode 100644 app/src/main/java/com/tinyhack/zygiskreflutter/SetHostActivity.java create mode 100644 app/src/main/java/com/tinyhack/zygiskreflutter/Util.java create mode 100644 app/src/main/res/drawable/butterfly_svgrepo_com.xml create mode 100644 app/src/main/res/drawable/ic_launcher_background.xml create mode 100644 app/src/main/res/drawable/ic_launcher_foreground.xml create mode 100644 app/src/main/res/layout/activity_about.xml create mode 100644 app/src/main/res/layout/activity_app_detail.xml create mode 100644 app/src/main/res/layout/activity_main.xml create mode 100644 app/src/main/res/layout/activity_set_host.xml create mode 100644 app/src/main/res/layout/list_item.xml create mode 100644 app/src/main/res/menu/drawer_menu.xml create mode 100644 app/src/main/res/menu/top_menu.xml create mode 100644 app/src/main/res/mipmap-anydpi/ic_launcher.xml create mode 100644 app/src/main/res/mipmap-anydpi/ic_launcher_round.xml create mode 100644 app/src/main/res/mipmap-hdpi/ic_launcher.webp create mode 100644 app/src/main/res/mipmap-hdpi/ic_launcher_round.webp create mode 100644 app/src/main/res/mipmap-mdpi/ic_launcher.webp create mode 100644 app/src/main/res/mipmap-mdpi/ic_launcher_round.webp create mode 100644 app/src/main/res/mipmap-xhdpi/ic_launcher.webp create mode 100644 app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp create mode 100644 app/src/main/res/mipmap-xxhdpi/ic_launcher.webp create mode 100644 app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp create mode 100644 app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp create mode 100644 app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp create mode 100644 app/src/main/res/values-night/themes.xml create mode 100644 app/src/main/res/values/colors.xml create mode 100644 app/src/main/res/values/ids.xml create mode 100644 app/src/main/res/values/strings.xml create mode 100644 app/src/main/res/values/themes.xml create mode 100644 app/src/main/res/xml/backup_rules.xml create mode 100644 app/src/main/res/xml/data_extraction_rules.xml create mode 100644 app/src/test/java/com/tinyhack/zygiskreflutter/ExampleUnitTest.java create mode 100644 build.gradle.kts create mode 100644 gradle.properties create mode 100644 gradle/libs.versions.toml create mode 100644 gradle/wrapper/gradle-wrapper.jar create mode 100644 gradle/wrapper/gradle-wrapper.properties create mode 100644 gradlew create mode 100644 gradlew.bat create mode 100644 module/META-INF/com/google/android/update-binary create mode 100644 module/META-INF/com/google/android/updater-script create mode 100644 module/module.prop create mode 100644 settings.gradle.kts diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..fca6178 --- /dev/null +++ b/.gitignore @@ -0,0 +1,16 @@ +*.iml +.gradle +/local.properties +/.idea/caches +/.idea/libraries +/.idea/modules.xml +/.idea/workspace.xml +/.idea/navEditor.xml +/.idea/assetWizardSettings.xml +.DS_Store +/build +/captures +.externalNativeBuild +.cxx +local.properties +build.bat \ No newline at end of file diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..f288702 --- /dev/null +++ b/LICENSE @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/README.md b/README.md new file mode 100644 index 0000000..8555901 --- /dev/null +++ b/README.md @@ -0,0 +1,32 @@ +# Zygisk-based reFlutter implementation + +reFlutter is a handy tool for reverse engineering Flutter-based applications for both rooted and non-rooted Android. To use Reflutter, you must obtain your APK and replace libflutter.so, resign the APK and reinstall it. + +The Zygisk module is designed to empower rooted Android users by simplifying the process. With the provided app, you can easily download `libflutter.so` from reFlutter project. The Zygisk module will then seamlessly replace `libflutter.so` at runtime, making the process straightforward and efficient. + +Please note: set up your Proxy IP. Set your Burp Suite like you would set when using reFlutter (listen to `*:8083` and enable "Support invisible proxying"). + +## Requirements + +Rooted Android with Magisk installed and Zygisk Enabled + +## Installation + +Download the ZIP file, and install it as Zygisk module. You can also do it from ADB: + + +``` +adb push zygiskreflutter_1.0.zip /sdcard/ +adb shell su -c magisk --install-module /sdcard/zygiskreflutter_1.0.zip +adb reboot +``` + + +Install the APK, then setup your proxy IP from "Set Proxy Host" menu. + +Select the app that you want to *reFlutter*, click download library, once it is downloaded, you can enable the proxy feature. + +You can now start the target app normally + + +Check adb log and filter it by "ZygiskReflutter" in case you found a problem diff --git a/app/.gitignore b/app/.gitignore new file mode 100644 index 0000000..42afabf --- /dev/null +++ b/app/.gitignore @@ -0,0 +1 @@ +/build \ No newline at end of file diff --git a/app/build.gradle.kts b/app/build.gradle.kts new file mode 100644 index 0000000..601293b --- /dev/null +++ b/app/build.gradle.kts @@ -0,0 +1,115 @@ +plugins { + alias(libs.plugins.androidApplication) +} + +android { + namespace = "com.tinyhack.zygiskreflutter" + compileSdk = 34 + + defaultConfig { + applicationId = "com.tinyhack.zygiskreflutter" + minSdk = 27 + targetSdk = 34 + versionCode = 1 + versionName = "1.0" + + testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner" + externalNativeBuild { + cmake { + arguments += "-DCMAKE_BUILD_TYPE=MinSizeRel" + + cppFlags += "-std=c++17" + cppFlags += "-fno-exceptions" + cppFlags += "-fno-rtti" + cppFlags += "-fvisibility=hidden" + cppFlags += "-fvisibility-inlines-hidden" + } + } + } + + buildTypes { + release { + isMinifyEnabled = true + isShrinkResources = true + multiDexEnabled = false + proguardFiles( + getDefaultProguardFile("proguard-android-optimize.txt"), + "proguard-rules.pro" + ) + } + } + compileOptions { + sourceCompatibility = JavaVersion.VERSION_1_8 + targetCompatibility = JavaVersion.VERSION_1_8 + } + externalNativeBuild { + cmake { + path = file("src/main/cpp/CMakeLists.txt") + version = "3.22.1" + } + } + buildFeatures { + viewBinding = true + } +} + + + +dependencies { + + implementation(libs.appcompat) + implementation(libs.material) + implementation(libs.constraintlayout) + implementation(libs.activity) + testImplementation(libs.junit) + androidTestImplementation(libs.ext.junit) + androidTestImplementation(libs.espresso.core) +} + +tasks.register("updateModuleProp") { + doLast { + val versionName = project.android.defaultConfig.versionName + val versionCode = project.android.defaultConfig.versionCode + + val modulePropFile = project.rootDir.resolve("module/module.prop") + + var content = modulePropFile.readText() + + content = content.replace(Regex("version=.*"), "version=$versionName") + content = content.replace(Regex("versionCode=.*"), "versionCode=$versionCode") + + modulePropFile.writeText(content) + } +} + + +tasks.register("copyFiles") { + dependsOn("updateModuleProp") + + doLast { + val moduleFolder = project.rootDir.resolve("module") + val dexFile = project.layout.buildDirectory.get().asFile.resolve("intermediates/dex/release/minifyReleaseWithR8/classes.dex") + val soDir = project.layout.buildDirectory.get().asFile.resolve("intermediates/stripped_native_libs/release/stripReleaseDebugSymbols/out/lib") + + //dexFile.copyTo(moduleFolder.resolve("classes.dex"), overwrite = true) + + soDir.walk().filter { it.isFile && it.extension == "so" }.forEach { soFile -> + val abiFolder = soFile.parentFile.name + val destination = moduleFolder.resolve("zygisk/$abiFolder.so") + soFile.copyTo(destination, overwrite = true) + } + } +} + +tasks.register("zip") { + dependsOn("copyFiles") + + archiveFileName.set("zygiskreflutter_${project.android.defaultConfig.versionName}.zip") + destinationDirectory.set(project.rootDir.resolve("out")) + + from(project.rootDir.resolve("module")) +} + +afterEvaluate { + tasks["assembleRelease"].finalizedBy("updateModuleProp", "copyFiles", "zip") +} diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro new file mode 100644 index 0000000..481bb43 --- /dev/null +++ b/app/proguard-rules.pro @@ -0,0 +1,21 @@ +# 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 \ No newline at end of file diff --git a/app/src/androidTest/java/com/tinyhack/zygiskreflutter/ExampleInstrumentedTest.java b/app/src/androidTest/java/com/tinyhack/zygiskreflutter/ExampleInstrumentedTest.java new file mode 100644 index 0000000..688faf0 --- /dev/null +++ b/app/src/androidTest/java/com/tinyhack/zygiskreflutter/ExampleInstrumentedTest.java @@ -0,0 +1,26 @@ +package com.tinyhack.zygiskreflutter; + +import android.content.Context; + +import androidx.test.platform.app.InstrumentationRegistry; +import androidx.test.ext.junit.runners.AndroidJUnit4; + +import org.junit.Test; +import org.junit.runner.RunWith; + +import static org.junit.Assert.*; + +/** + * Instrumented test, which will execute on an Android device. + * + * @see Testing documentation + */ +@RunWith(AndroidJUnit4.class) +public class ExampleInstrumentedTest { + @Test + public void useAppContext() { + // Context of the app under test. + Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext(); + assertEquals("com.tinyhack.zygiskreflutter", appContext.getPackageName()); + } +} diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml new file mode 100644 index 0000000..9c8c40a --- /dev/null +++ b/app/src/main/AndroidManifest.xml @@ -0,0 +1,40 @@ + + + + + + + + + + + + + + + + + + + + diff --git a/app/src/main/cpp/CMakeLists.txt b/app/src/main/cpp/CMakeLists.txt new file mode 100644 index 0000000..0c8e19a --- /dev/null +++ b/app/src/main/cpp/CMakeLists.txt @@ -0,0 +1,37 @@ +# For more information about using CMake with Android Studio, read the +# documentation: https://d.android.com/studio/projects/add-native-code.html. +# For more examples on how to use CMake, see https://github.com/android/ndk-samples. + +# Sets the minimum CMake version required for this project. +cmake_minimum_required(VERSION 3.22.1) + +# Declares the project name. The project name can be accessed via ${ PROJECT_NAME}, +# Since this is the top level CMakeLists.txt, the project name is also accessible +# with ${CMAKE_PROJECT_NAME} (both CMake variables are in-sync within the top level +# build script scope). +project("zygiskreflutter") + +# Creates and names a library, sets it as either STATIC +# or SHARED, and provides the relative paths to its source code. +# You can define multiple libraries, and CMake builds them for you. +# Gradle automatically packages shared libraries with your APK. +# +# In this top level CMakeLists.txt, ${CMAKE_PROJECT_NAME} is used to define +# the target library name; in the sub-module's CMakeLists.txt, ${PROJECT_NAME} +# is preferred for the same purpose. +# +# In order to load a library into your app from Java/Kotlin, you must call +# System.loadLibrary() and pass the name of the library defined here; +# for GameActivity/NativeActivity derived applications, the same library name must be +# used in the AndroidManifest.xml file. +add_library(${CMAKE_PROJECT_NAME} SHARED + # List C/C++ source files with relative paths to this CMakeLists.txt. + native-lib.cpp) + +# Specifies libraries CMake should link to your target library. You +# can link libraries from various origins, such as libraries defined in this +# build script, prebuilt third-party libraries, or Android system libraries. +target_link_libraries(${CMAKE_PROJECT_NAME} + # List libraries link to the target library + # do not link to android https://github.com/topjohnwu/Magisk/issues/6351 + log) diff --git a/app/src/main/cpp/native-lib.cpp b/app/src/main/cpp/native-lib.cpp new file mode 100644 index 0000000..db3ba02 --- /dev/null +++ b/app/src/main/cpp/native-lib.cpp @@ -0,0 +1,287 @@ +#include +#include +#include "zygisk.h" +#include +#include +#include +#include +#include +#include +#include +#include +#include + + + + +#define LOG_TAG "ZygiskReflutter" + +void *(*orig__dlopen)(const char *filename, int flags); + +void *my_dlopen(const char *filename, int flags) +{ + __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, "my_dlopen: %s", filename); + return orig__dlopen(filename, flags); +} + +static void send_string(int fd, const char *str) { + int len = strlen(str); + write(fd, &len, sizeof(len)); + write(fd, str, len); +} + +static std::string so_replacement; + +void *(*orig_android_dlopen_ext)(const char *_Nullable __filename, int __flags, const android_dlextinfo *_Nullable __info); + +void *android_dlopen_ext(const char *_Nullable __filename, int __flags, const android_dlextinfo *_Nullable __info) +{ + __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, "android_dlopen_ext: %s flags: %08x", __filename, __flags); + + if (!so_replacement.empty() && so_replacement[0]=='/') { + //if trying to load libflutter.so + if (strstr(__filename, "libflutter.so")) { + __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, "android_dlopen_ext replace: %s", so_replacement.c_str()); + void *res = orig_android_dlopen_ext(so_replacement.c_str(), __flags, __info); + if (!res) { + __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, "android_dlopen_ext replace result2: %p %s", res, dlerror()); + if (!res) { + __android_log_print(ANDROID_LOG_WARN, LOG_TAG, "failed hooking"); + //reopen orig + res = orig_android_dlopen_ext(__filename, __flags, __info); + } + } + __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, "android_dlopen_ext returning %p", res); + return res; + } + } + + return orig_android_dlopen_ext(__filename, __flags, __info); +} + +class ZygiskReflutter : public zygisk::ModuleBase { +public: + void onLoad(zygisk::Api *api, JNIEnv *env) override { + this->api = api; + this->env = env; + do_hook = false; + } + + void preAppSpecialize(zygisk::AppSpecializeArgs *args) override { + auto package_name = env->GetStringUTFChars(args->nice_name, nullptr); + auto app_data_dir = env->GetStringUTFChars(args->app_data_dir, nullptr); + preSpecialize(package_name, app_data_dir); + env->ReleaseStringUTFChars(args->nice_name, package_name); + env->ReleaseStringUTFChars(args->app_data_dir, app_data_dir); + } + + void postAppSpecialize(const zygisk::AppSpecializeArgs *) override { + if (do_hook) { + //hook dlopen + api->pltHookRegister(".*", "dlopen", (void *) my_dlopen, (void **) &orig__dlopen); + //hook android_dlopen_ext + api->pltHookRegister(".*", "android_dlopen_ext", (void *) android_dlopen_ext, (void **) &orig_android_dlopen_ext); + api->pltHookCommit(); + + } + if (create_installed) { + //create a file to indicate that we are installed + std::string installed_file = "/data/data/com.tinyhack.zygiskreflutter/files/installed.txt"; + std::ofstream out_file(installed_file); + if (out_file.is_open()) { + out_file << "installed"; + out_file.close(); + } else { + __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, "failed to create installed file"); + } + } + } + +private: + zygisk::Api *api; + JNIEnv *env; + bool do_hook; + bool create_installed; + + void preSpecialize(const char *package_name, const char *app_data_dir) { + + if (strcmp(package_name, "com.tinyhack.zygiskreflutter") == 0) { + create_installed = true; + return; + } + + //__android_log_print(ANDROID_LOG_ERROR, LOG_TAG, "preSpecialize: '%s', %s", package_name, app_data_dir); + + int fd = api->connectCompanion(); + send_string(fd, package_name); + send_string(fd, app_data_dir); + //read the path length + int path_len = 0; + int len = read(fd, &path_len, sizeof(path_len)); + if (len <= 0) { + __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, "read path length failed %d err = %d", len, errno); + return; + } + //read the path + char buf[1024]; + len = read(fd, buf, path_len); + if (len <= 0) { + __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, "read path failed"); + return; + } + buf[len] = '\0'; + if (strcmp(buf, "error")==0) { + return; + } + + so_replacement = buf; + + __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, "preSpecialize: ZygiskReflutter: %s", so_replacement.c_str()); + do_hook = true; + + } +}; + +static std::string readFirstLine(const char *filename) { + std::ifstream in_file(filename); + std::string firstLine; + if (in_file.is_open()) { + std::getline(in_file, firstLine); + in_file.close(); + } + return firstLine; +} + +static void writeLine(const char *filename, const char *line) { + std::ofstream out_file(filename); + if (out_file.is_open()) { + out_file << line; + out_file.close(); + } +} + +static void patchIP(const char *so_filename, const char *new_ip) { + const char *old_ip = "192.168.133.104"; + //patch binary file using mmap + int fd = open(so_filename, O_RDWR); + if (fd < 0) { + __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, "open file failed: %s", so_filename); + return; + } + struct stat st; + if (fstat(fd, &st) != 0) { + __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, "fstat failed: %s", so_filename); + close(fd); + return; + } + void *addr = mmap(nullptr, st.st_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); + if (addr == MAP_FAILED) { + __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, "mmap failed: %s", so_filename); + close(fd); + return; + } + //search for old_ip + char *p = (char *) addr; + char *end = p + st.st_size; + while (p < end) { + if (memcmp(p, old_ip, strlen(old_ip)) == 0) { + __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, "found old ip at %p", p); + memcpy(p, new_ip, strlen(new_ip)); + break; + } + p++; + } + munmap(addr, st.st_size); + close(fd); + +} + +static std::string read_string(int fd) +{ + int len = 0; + int r = read(fd, &len, sizeof(len)); + if (r <= 0) { + return ""; + } + if (len <= 0) { + return ""; + } + char buf[1024]; + read(fd, buf, len); + buf[len] = '\0'; + return buf; + +} + +static void my_companion(int fd) { + + std::string package_name = read_string(fd); + __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, "companion: package %s", package_name.c_str()); + std::string app_data_dir = read_string(fd); + __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, "companion: datadir %s", app_data_dir.c_str()); + + std::string package_info = "/data/data/com.tinyhack.zygiskreflutter/files/" + package_name + ".txt"; + //read the file + std::string hash = readFirstLine(package_info.c_str()); + if (hash.empty()) { + send_string(fd, "error"); + return; + } + std::string sofile = "/data/data/com.tinyhack.zygiskreflutter/files/" + hash + ".so"; + //check if exists + struct stat st; + if (stat(sofile.c_str(), &st) != 0) { + __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, "companion: %s does not exists", sofile.c_str()); + send_string(fd, "error"); + return; + } + + std::string ipfile = "/data/data/com.tinyhack.zygiskreflutter/files/proxyip.txt"; + std::string latest_ip = readFirstLine(ipfile.c_str()); + + //get uid/gid of the package dir owner + if (stat(app_data_dir.c_str(), &st) == 0) { + __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, "companion: %d %d", st.st_uid, st.st_gid); + } + + std::string dest_dir = app_data_dir +"/files/"; + mkdir(dest_dir.c_str(), 0755); + chown(dest_dir.c_str(), st.st_uid, st.st_gid); + + std::string package_ip_file = dest_dir + hash + ".txt"; + std::string ip_now = readFirstLine(package_ip_file.c_str()); + + std::string dest_file = dest_dir + hash + ".so"; + + bool need_copy = false; + //check if dest file does not exists + if (stat(dest_file.c_str(), &st)!=0) { + need_copy = true; + } else { + //check if the ip has changed + if (ip_now != latest_ip) { + __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, "companion: ip changed '%s' '%s'", ip_now.c_str(), latest_ip.c_str()); + need_copy = true; + } + } + + if (need_copy) { + //copy so file + std::string cmd = "cp " + sofile + " " + dest_file; + system(cmd.c_str()); + //chown + chown(dest_file.c_str(), st.st_uid, st.st_gid); + //chmod 755 + chmod(dest_file.c_str(), 0755); + //patch the dest file + patchIP(dest_file.c_str(), latest_ip.c_str()); + //write ip + writeLine(package_ip_file.c_str(), latest_ip.c_str()); + } + + send_string(fd, dest_file.c_str()); + +} + +REGISTER_ZYGISK_MODULE(ZygiskReflutter) +REGISTER_ZYGISK_COMPANION(my_companion) diff --git a/app/src/main/cpp/zygisk.h b/app/src/main/cpp/zygisk.h new file mode 100644 index 0000000..b8a0dff --- /dev/null +++ b/app/src/main/cpp/zygisk.h @@ -0,0 +1,384 @@ +/* Copyright 2022-2023 John "topjohnwu" Wu + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH + * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, + * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM + * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR + * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + */ + +// This is the public API for Zygisk modules. +// DO NOT MODIFY ANY CODE IN THIS HEADER. + +#pragma once + +#include + +#define ZYGISK_API_VERSION 2 + +/* + +*************** +* Introduction +*************** + +On Android, all app processes are forked from a special daemon called "Zygote". +For each new app process, zygote will fork a new process and perform "specialization". +This specialization operation enforces the Android security sandbox on the newly forked +process to make sure that 3rd party application code is only loaded after it is being +restricted within a sandbox. + +On Android, there is also this special process called "system_server". This single +process hosts a significant portion of system services, which controls how the +Android operating system and apps interact with each other. + +The Zygisk framework provides a way to allow developers to build modules and run custom +code before and after system_server and any app processes' specialization. +This enable developers to inject code and alter the behavior of system_server and app processes. + +Please note that modules will only be loaded after zygote has forked the child process. +THIS MEANS ALL OF YOUR CODE RUNS IN THE APP/SYSTEM_SERVER PROCESS, NOT THE ZYGOTE DAEMON! + +********************* +* Development Guide +********************* + +Define a class and inherit zygisk::ModuleBase to implement the functionality of your module. +Use the macro REGISTER_ZYGISK_MODULE(className) to register that class to Zygisk. + +Example code: + +static jint (*orig_logger_entry_max)(JNIEnv *env); +static jint my_logger_entry_max(JNIEnv *env) { return orig_logger_entry_max(env); } + +class ExampleModule : public zygisk::ModuleBase { +public: + void onLoad(zygisk::Api *api, JNIEnv *env) override { + this->api = api; + this->env = env; + } + void preAppSpecialize(zygisk::AppSpecializeArgs *args) override { + JNINativeMethod methods[] = { + { "logger_entry_max_payload_native", "()I", (void*) my_logger_entry_max }, + }; + api->hookJniNativeMethods(env, "android/util/Log", methods, 1); + *(void **) &orig_logger_entry_max = methods[0].fnPtr; + } +private: + zygisk::Api *api; + JNIEnv *env; +}; + +REGISTER_ZYGISK_MODULE(ExampleModule) + +----------------------------------------------------------------------------------------- + +Since your module class's code runs with either Zygote's privilege in pre[XXX]Specialize, +or runs in the sandbox of the target process in post[XXX]Specialize, the code in your class +never runs in a true superuser environment. + +If your module require access to superuser permissions, you can create and register +a root companion handler function. This function runs in a separate root companion +daemon process, and an Unix domain socket is provided to allow you to perform IPC between +your target process and the root companion process. + +Example code: + +static void example_handler(int socket) { ... } + +REGISTER_ZYGISK_COMPANION(example_handler) + +*/ + +namespace zygisk { + + struct Api; + struct AppSpecializeArgs; + struct ServerSpecializeArgs; + + class ModuleBase { + public: + + // This method is called as soon as the module is loaded into the target process. + // A Zygisk API handle will be passed as an argument. + virtual void onLoad([[maybe_unused]] Api *api, [[maybe_unused]] JNIEnv *env) {} + + // This method is called before the app process is specialized. + // At this point, the process just got forked from zygote, but no app specific specialization + // is applied. This means that the process does not have any sandbox restrictions and + // still runs with the same privilege of zygote. + // + // All the arguments that will be sent and used for app specialization is passed as a single + // AppSpecializeArgs object. You can read and overwrite these arguments to change how the app + // process will be specialized. + // + // If you need to run some operations as superuser, you can call Api::connectCompanion() to + // get a socket to do IPC calls with a root companion process. + // See Api::connectCompanion() for more info. + virtual void preAppSpecialize([[maybe_unused]] AppSpecializeArgs *args) {} + + // This method is called after the app process is specialized. + // At this point, the process has all sandbox restrictions enabled for this application. + // This means that this method runs with the same privilege of the app's own code. + virtual void postAppSpecialize([[maybe_unused]] const AppSpecializeArgs *args) {} + + // This method is called before the system server process is specialized. + // See preAppSpecialize(args) for more info. + virtual void preServerSpecialize([[maybe_unused]] ServerSpecializeArgs *args) {} + + // This method is called after the system server process is specialized. + // At this point, the process runs with the privilege of system_server. + virtual void postServerSpecialize([[maybe_unused]] const ServerSpecializeArgs *args) {} + }; + + struct AppSpecializeArgs { + // Required arguments. These arguments are guaranteed to exist on all Android versions. + jint &uid; + jint &gid; + jintArray &gids; + jint &runtime_flags; + jint &mount_external; + jstring &se_info; + jstring &nice_name; + jstring &instruction_set; + jstring &app_data_dir; + + // Optional arguments. Please check whether the pointer is null before de-referencing + jboolean *const is_child_zygote; + jboolean *const is_top_app; + jobjectArray *const pkg_data_info_list; + jobjectArray *const whitelisted_data_info_list; + jboolean *const mount_data_dirs; + jboolean *const mount_storage_dirs; + + AppSpecializeArgs() = delete; + }; + + struct ServerSpecializeArgs { + jint &uid; + jint &gid; + jintArray &gids; + jint &runtime_flags; + jlong &permitted_capabilities; + jlong &effective_capabilities; + + ServerSpecializeArgs() = delete; + }; + + namespace internal { + struct api_table; + template void entry_impl(api_table *, JNIEnv *); + } + +// These values are used in Api::setOption(Option) + enum Option : int { + // Force Magisk's denylist unmount routines to run on this process. + // + // Setting this option only makes sense in preAppSpecialize. + // The actual unmounting happens during app process specialization. + // + // Set this option to force all Magisk and modules' files to be unmounted from the + // mount namespace of the process, regardless of the denylist enforcement status. + FORCE_DENYLIST_UNMOUNT = 0, + + // When this option is set, your module's library will be dlclose-ed after post[XXX]Specialize. + // Be aware that after dlclose-ing your module, all of your code will be unmapped from memory. + // YOU MUST NOT ENABLE THIS OPTION AFTER HOOKING ANY FUNCTIONS IN THE PROCESS. + DLCLOSE_MODULE_LIBRARY = 1, + }; + +// Bit masks of the return value of Api::getFlags() + enum StateFlag : uint32_t { + // The user has granted root access to the current process + PROCESS_GRANTED_ROOT = (1u << 0), + + // The current process was added on the denylist + PROCESS_ON_DENYLIST = (1u << 1), + }; + +// All API methods will stop working after post[XXX]Specialize as Zygisk will be unloaded +// from the specialized process afterwards. + struct Api { + + // Connect to a root companion process and get a Unix domain socket for IPC. + // + // This API only works in the pre[XXX]Specialize methods due to SELinux restrictions. + // + // The pre[XXX]Specialize methods run with the same privilege of zygote. + // If you would like to do some operations with superuser permissions, register a handler + // function that would be called in the root process with REGISTER_ZYGISK_COMPANION(func). + // Another good use case for a companion process is that if you want to share some resources + // across multiple processes, hold the resources in the companion process and pass it over. + // + // The root companion process is ABI aware; that is, when calling this method from a 32-bit + // process, you will be connected to a 32-bit companion process, and vice versa for 64-bit. + // + // Returns a file descriptor to a socket that is connected to the socket passed to your + // module's companion request handler. Returns -1 if the connection attempt failed. + int connectCompanion(); + + // Get the file descriptor of the root folder of the current module. + // + // This API only works in the pre[XXX]Specialize methods. + // Accessing the directory returned is only possible in the pre[XXX]Specialize methods + // or in the root companion process (assuming that you sent the fd over the socket). + // Both restrictions are due to SELinux and UID. + // + // Returns -1 if errors occurred. + int getModuleDir(); + + // Set various options for your module. + // Please note that this method accepts one single option at a time. + // Check zygisk::Option for the full list of options available. + void setOption(Option opt); + + // Get information about the current process. + // Returns bitwise-or'd zygisk::StateFlag values. + uint32_t getFlags(); + + // Hook JNI native methods for a class + // + // Lookup all registered JNI native methods and replace it with your own methods. + // The original function pointer will be saved in each JNINativeMethod's fnPtr. + // If no matching class, method name, or signature is found, that specific JNINativeMethod.fnPtr + // will be set to nullptr. + void hookJniNativeMethods(JNIEnv *env, const char *className, JNINativeMethod *methods, int numMethods); + + // Hook functions in the PLT (Procedure Linkage Table) of ELFs loaded in memory. + // + // Parsing /proc/[PID]/maps will give you the memory map of a process. As an example: + // + //
+ // 56b4346000-56b4347000 r-xp 00002000 fe:00 235 /system/bin/app_process64 + // (More details: https://man7.org/linux/man-pages/man5/proc.5.html) + // + // For ELFs loaded in memory with pathname matching `regex`, replace function `symbol` with `newFunc`. + // If `oldFunc` is not nullptr, the original function pointer will be saved to `oldFunc`. + void pltHookRegister(const char *regex, const char *symbol, void *newFunc, void **oldFunc); + + // For ELFs loaded in memory with pathname matching `regex`, exclude hooks registered for `symbol`. + // If `symbol` is nullptr, then all symbols will be excluded. + void pltHookExclude(const char *regex, const char *symbol); + + // Commit all the hooks that was previously registered. + // Returns false if an error occurred. + bool pltHookCommit(); + + private: + internal::api_table *tbl; + template friend void internal::entry_impl(internal::api_table *, JNIEnv *); + }; + +// Register a class as a Zygisk module + +#define REGISTER_ZYGISK_MODULE(clazz) \ +void zygisk_module_entry(zygisk::internal::api_table *table, JNIEnv *env) { \ + zygisk::internal::entry_impl(table, env); \ +} + +// Register a root companion request handler function for your module +// +// The function runs in a superuser daemon process and handles a root companion request from +// your module running in a target process. The function has to accept an integer value, +// which is a Unix domain socket that is connected to the target process. +// See Api::connectCompanion() for more info. +// +// NOTE: the function can run concurrently on multiple threads. +// Be aware of race conditions if you have globally shared resources. + +#define REGISTER_ZYGISK_COMPANION(func) \ +void zygisk_companion_entry(int client) { func(client); } + +/********************************************************* + * The following is internal ABI implementation detail. + * You do not have to understand what it is doing. + *********************************************************/ + + namespace internal { + + struct module_abi { + long api_version; + ModuleBase *impl; + + void (*preAppSpecialize)(ModuleBase *, AppSpecializeArgs *); + void (*postAppSpecialize)(ModuleBase *, const AppSpecializeArgs *); + void (*preServerSpecialize)(ModuleBase *, ServerSpecializeArgs *); + void (*postServerSpecialize)(ModuleBase *, const ServerSpecializeArgs *); + + module_abi(ModuleBase *module) : api_version(ZYGISK_API_VERSION), impl(module) { + preAppSpecialize = [](auto m, auto args) { m->preAppSpecialize(args); }; + postAppSpecialize = [](auto m, auto args) { m->postAppSpecialize(args); }; + preServerSpecialize = [](auto m, auto args) { m->preServerSpecialize(args); }; + postServerSpecialize = [](auto m, auto args) { m->postServerSpecialize(args); }; + } + }; + + struct api_table { + // Base + void *impl; + bool (*registerModule)(api_table *, module_abi *); + + void (*hookJniNativeMethods)(JNIEnv *, const char *, JNINativeMethod *, int); + void (*pltHookRegister)(const char *, const char *, void *, void **); + void (*pltHookExclude)(const char *, const char *); + bool (*pltHookCommit)(); + int (*connectCompanion)(void * /* impl */); + void (*setOption)(void * /* impl */, Option); + int (*getModuleDir)(void * /* impl */); + uint32_t (*getFlags)(void * /* impl */); + }; + + template + void entry_impl(api_table *table, JNIEnv *env) { + static Api api; + api.tbl = table; + static T module; + ModuleBase *m = &module; + static module_abi abi(m); + if (!table->registerModule(table, &abi)) return; + m->onLoad(&api, env); + } + + } // namespace internal + + inline int Api::connectCompanion() { + return tbl->connectCompanion ? tbl->connectCompanion(tbl->impl) : -1; + } + inline int Api::getModuleDir() { + return tbl->getModuleDir ? tbl->getModuleDir(tbl->impl) : -1; + } + inline void Api::setOption(Option opt) { + if (tbl->setOption) tbl->setOption(tbl->impl, opt); + } + inline uint32_t Api::getFlags() { + return tbl->getFlags ? tbl->getFlags(tbl->impl) : 0; + } + inline void Api::hookJniNativeMethods(JNIEnv *env, const char *className, JNINativeMethod *methods, int numMethods) { + if (tbl->hookJniNativeMethods) tbl->hookJniNativeMethods(env, className, methods, numMethods); + } + inline void Api::pltHookRegister(const char *regex, const char *symbol, void *newFunc, void **oldFunc) { + if (tbl->pltHookRegister) tbl->pltHookRegister(regex, symbol, newFunc, oldFunc); + } + inline void Api::pltHookExclude(const char *regex, const char *symbol) { + if (tbl->pltHookExclude) tbl->pltHookExclude(regex, symbol); + } + inline bool Api::pltHookCommit() { + return tbl->pltHookCommit != nullptr && tbl->pltHookCommit(); + } + +} // namespace zygisk + +extern "C" { + +[[gnu::visibility("default"), maybe_unused]] +void zygisk_module_entry(zygisk::internal::api_table *, JNIEnv *); + +[[gnu::visibility("default"), maybe_unused]] +void zygisk_companion_entry(int); + +} // extern "C" diff --git a/app/src/main/java/com/tinyhack/zygiskreflutter/AboutActivity.java b/app/src/main/java/com/tinyhack/zygiskreflutter/AboutActivity.java new file mode 100644 index 0000000..d9c7ad4 --- /dev/null +++ b/app/src/main/java/com/tinyhack/zygiskreflutter/AboutActivity.java @@ -0,0 +1,55 @@ +package com.tinyhack.zygiskreflutter; + +import android.content.Intent; +import android.content.pm.PackageInfo; +import android.content.pm.PackageManager; +import android.net.Uri; +import android.os.Bundle; +import android.widget.TextView; +import android.widget.Button; + +import androidx.activity.EdgeToEdge; +import androidx.appcompat.app.AppCompatActivity; +import androidx.core.graphics.Insets; +import androidx.core.view.ViewCompat; +import androidx.core.view.WindowInsetsCompat; + +public class AboutActivity extends AppCompatActivity { + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + EdgeToEdge.enable(this); + setContentView(R.layout.activity_about); + ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> { + Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars()); + v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom); + return insets; + }); + TextView textViewVersion = findViewById(R.id.textViewVersion); + boolean zygiskModuleInstalled = false; + //check if "installed.txt" exists + String filesdir = getFilesDir().getAbsolutePath(); + String installedFile = filesdir + "/installed.txt"; + java.io.File file = new java.io.File(installedFile); + if (file.exists()) + zygiskModuleInstalled = true; + + try { + PackageInfo pInfo = getPackageManager().getPackageInfo(getPackageName(), 0); + String version = pInfo.versionName; + if (!zygiskModuleInstalled) + version += " (NO Zygisk module found)"; + textViewVersion.setText("Version " + version); + } catch (PackageManager.NameNotFoundException e) { + e.printStackTrace(); + } + Button visitGithubButton = findViewById(R.id.visitGithubButton); + visitGithubButton.setOnClickListener(v -> { + String url = "https://github.com/yohanes/zygisk-reflutter"; + Intent i = new Intent(Intent.ACTION_VIEW); + i.setData(Uri.parse(url)); + startActivity(i); + }); + } +} diff --git a/app/src/main/java/com/tinyhack/zygiskreflutter/AppDetailActivity.java b/app/src/main/java/com/tinyhack/zygiskreflutter/AppDetailActivity.java new file mode 100644 index 0000000..8076814 --- /dev/null +++ b/app/src/main/java/com/tinyhack/zygiskreflutter/AppDetailActivity.java @@ -0,0 +1,401 @@ +package com.tinyhack.zygiskreflutter; + +import android.content.pm.ApplicationInfo; +import android.content.pm.PackageManager; +import android.os.Bundle; + +import androidx.activity.EdgeToEdge; +import androidx.appcompat.app.AppCompatActivity; +import androidx.core.graphics.Insets; +import androidx.core.view.ViewCompat; +import androidx.core.view.WindowInsetsCompat; +import android.content.Intent; +import android.widget.Button; +import android.widget.CheckBox; +import android.widget.ProgressBar; +import android.widget.TextView; + +import org.w3c.dom.Text; + +import java.io.IOException; +import java.io.InputStream; +import java.io.FileReader; +import java.io.BufferedReader; +import java.util.zip.ZipFile; +import java.util.zip.ZipEntry; + +public class AppDetailActivity extends AppCompatActivity { + + private boolean isFlutter = false; + private EngineHashInfo.EngineHashEntry entry = null; + + private String getFlutterhash(String apkPath, String flutterPath) { + try { + // Open the APK file as a ZipFile + ZipFile zipFile = new ZipFile(apkPath); + + // Get the ZipEntry for the flutterPath + ZipEntry entry = zipFile.getEntry(flutterPath); + + String cachePath = this.getFilesDir().getAbsolutePath() + "/hash-" + entry.getCrc() + "-" + entry.getSize() + ".txt"; + + //if exists, read and return this + try { + FileReader fileReader = new FileReader(cachePath); + BufferedReader bufferedReader = new BufferedReader(fileReader); + String line = bufferedReader.readLine(); + bufferedReader.close(); + return line; + } catch (IOException e) { + //ignore + } + + // Open an InputStream for the ZipEntry + InputStream stream = zipFile.getInputStream(entry); + + // Initialize an empty StringBuilder for the current sequence of hexadecimal characters + StringBuilder currentSequence = new StringBuilder(); + + // Read the InputStream byte by byte + int b; + while ((b = stream.read()) != -1) { + char c = (char) b; + + // Check if the character is a hexadecimal character + if ((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F')) { + // If it is, append it to the current sequence + currentSequence.append(c); + + } else { + // If the current sequence reaches 32 characters, return it + if (currentSequence.length() == 32) { + String thehash = currentSequence.toString(); + //save cache + //open file + try { + java.io.FileWriter fileWriter = new java.io.FileWriter(cachePath); + fileWriter.write(thehash); + fileWriter.close(); + } catch (IOException e) { + //ignore + } + return thehash; + } + + // If it's not a hexadecimal character, reset the current sequence + currentSequence.setLength(0); + } + } + + // If the end of the InputStream is reached and no 32-character sequence has been found, return null + return null; + } catch (IOException e) { + throw new RuntimeException(e); + } + + } + + private String getFirstLineFromFile(String path) { + try { + FileReader fileReader = new FileReader(path); + BufferedReader bufferedReader = new BufferedReader(fileReader); + String line = bufferedReader.readLine(); + bufferedReader.close(); + return line; + } catch (IOException e) { + return null; + } + } + + private void saveToFile(String path, String content) { + try { + java.io.FileWriter fileWriter = new java.io.FileWriter(path); + fileWriter.write(content); + fileWriter.close(); + } catch (IOException e) { + //ignore + } + } + + private boolean hasV2File() { + String dest = getFilesDir().getAbsolutePath() + "/v2-" + entry.Snapshot_hash + ".so"; + return new java.io.File(dest).exists(); + } + + private boolean hasV3File() { + String dest = getFilesDir().getAbsolutePath() + "/v3-" + entry.Snapshot_hash + ".so"; + return new java.io.File(dest).exists(); + } + + private String arch; + private String packageName; + private String enable_path; + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + EdgeToEdge.enable(this); + setContentView(R.layout.activity_app_detail); + + Intent intent = getIntent(); + String appName = intent.getStringExtra("appName"); + packageName = intent.getStringExtra("packageName"); + TextView appNameTextView = findViewById(R.id.appName); + appNameTextView.setText(appName); + TextView packageNameTextView = findViewById(R.id.packageName); + packageNameTextView.setText(packageName); + ProgressBar progressBar = findViewById(R.id.progressBar); + ProgressBar progressBarDump = findViewById(R.id.progressBarDump); + CheckBox checkBox = findViewById(R.id.enableHookCheckbox); + TextView downloadStatus = findViewById(R.id.downloadStatus); + downloadStatus.setText(""); + TextView downloadDumpStatus = findViewById(R.id.downloadDumpStatus); + downloadDumpStatus.setText(""); + CheckBox checkBoxClassDump = findViewById(R.id.enableDumpHookCheckbox); + checkBoxClassDump.setEnabled(false); + checkBoxClassDump.setChecked(false); + + enable_path = getFilesDir().getAbsolutePath() + "/"+ packageName + ".txt"; + + //set as unchecked and disabled + checkBox.setChecked(false); + checkBox.setEnabled(false); + //add handler + checkBox.setOnCheckedChangeListener((buttonView, isChecked) -> { + + if (isChecked) { + if (entry!=null) { + saveToFile(enable_path, "v2-"+entry.Snapshot_hash); + } + } else { + try { + new java.io.File(enable_path).delete(); + } catch (Exception e) { + //ignore + } + } + }); + + checkBoxClassDump.setOnCheckedChangeListener((buttonView, isChecked) -> { + if (isChecked) { + //must disable first checkbox + checkBox.setEnabled(false); + checkBox.setChecked(true); + if (entry!=null) { + saveToFile(enable_path, "v3-"+entry.Snapshot_hash); + } + } else { + if (hasV2File()) { + checkBox.setEnabled(true); + saveToFile(enable_path, "v2-" + entry.Snapshot_hash); + } else { + checkBox.setChecked(false); + try { + new java.io.File(enable_path).delete(); + } catch (Exception e) { + //ignore + } + } + } + }); + + arch = System.getProperty("os.arch"); + if (arch.equals("aarch64")) { + arch = "arm64"; + } else if (arch.equals("armv71")) { + arch = "arm"; + } + + Button downloadProxyLibButton = (Button)findViewById(R.id.downloadProxyLibButton); + //disable the button + downloadProxyLibButton.setEnabled(false); + //download button handler + downloadProxyLibButton.setOnClickListener(v -> { + //start download + EngineHashInfo engineHashInfo = EngineHashInfo.getInstance(AppDetailActivity.this); + String url = "https://github.com/Impact-I/reFlutter/releases/download/android-v2-"; + url += entry.Snapshot_hash + "/libflutter_" + arch + ".so"; + + String dest = getFilesDir().getAbsolutePath() + "/v2-" + entry.Snapshot_hash + ".so"; + downloadProxyLibButton.setEnabled(false); + DownloadFileTask task = new DownloadFileTask(progressBar); + task.setListener(new DownloadFileTask.DownloadListener() { + @Override + public void onSuccess() { + downloadProxyLibButton.setEnabled(false); + downloadStatus.setText("Downloaded " + entry.Snapshot_hash + ".so"); + checkBox.setEnabled(true); + } + + @Override + public void onError(String message) { + downloadStatus.setText("Download failed: " + message); + downloadProxyLibButton.setEnabled(true); + } + }); + downloadStatus.setText("Downloading " + entry.Snapshot_hash + ".so"); + task.downloadFile(url, dest); + }); + + Button downloadClassDumpButton = (Button)findViewById(R.id.downloadClassDumpButton); + //disable the button + downloadClassDumpButton.setEnabled(false); + downloadClassDumpButton.setOnClickListener(v -> { + //start download + EngineHashInfo engineHashInfo = EngineHashInfo.getInstance(AppDetailActivity.this); + String url = "https://github.com/Impact-I/reFlutter/releases/download/android-v3-"; + url += entry.Snapshot_hash + "/libflutter_" + arch + ".so"; + String dest = getFilesDir().getAbsolutePath() + "/v3-" + entry.Snapshot_hash + ".so"; + downloadClassDumpButton.setEnabled(false); + DownloadFileTask task = new DownloadFileTask(progressBarDump); + task.setListener(new DownloadFileTask.DownloadListener() { + @Override + public void onSuccess() { + downloadClassDumpButton.setEnabled(false); + downloadDumpStatus.setText("Downloaded " + entry.Snapshot_hash + ".so"); + checkBoxClassDump.setEnabled(true); + } + + @Override + public void onError(String message) { + downloadDumpStatus.setText("Download failed: " + message); + downloadClassDumpButton.setEnabled(true); + } + }); + downloadDumpStatus.setText("Downloading " + entry.Snapshot_hash + ".so"); + task.downloadFile(url, dest); + }); + + + + //get application info + try { + ApplicationInfo appInfo = getPackageManager().getApplicationInfo(packageName, 0); + //if apk has splitPublicSourceDirs use that, otherwise create array from publicSourceDir + String sourceDirs[]; + String libAPK; //apk containing .so + if (appInfo.splitPublicSourceDirs != null) { + sourceDirs = appInfo.splitPublicSourceDirs; + //find which apk contains lib + libAPK = null; + for (String dir : appInfo.splitPublicSourceDirs) { + //name must contain splitconfig.arm or splitconfig.x86 + if (dir.contains("split_config.")) { + libAPK = dir; + break; + } + } + } else { + sourceDirs = new String[]{appInfo.publicSourceDir}; + libAPK = appInfo.publicSourceDir; + } + TextView apkName = findViewById(R.id.apkName); + if (libAPK != null) { + //apkName.setText(libAPK); + //open zip file, find if libflutter.so exists + //if it does, then it's a flutter app + ZipFile zipFile = null; + String flutterPath = null; + try { + + zipFile = new ZipFile(libAPK); + //iterate through entries + isFlutter = false; + for (java.util.Enumeration e = zipFile.entries(); e.hasMoreElements(); ) { + java.util.zip.ZipEntry entry = e.nextElement(); + if (entry.getName().contains("libflutter.so")) { + flutterPath = entry.getName(); + isFlutter = true; + break; + } + } + + if (isFlutter) { + //find the hash is a new thread, since it is slow + String finalLibAPK = libAPK; + String finalFlutterPath = flutterPath; + new Thread(() -> { + String flutterHash = getFlutterhash(finalLibAPK, finalFlutterPath); + runOnUiThread(() -> { + //try to find this hash + EngineHashInfo engineHashInfo = EngineHashInfo.getInstance(AppDetailActivity.this); + entry = engineHashInfo.findEntryBySnapshotHash(flutterHash); + if (entry != null) { + + apkName.setText("Supported Flutter " + entry.version); + String dest = getFilesDir().getAbsolutePath() + "/v2-" + entry.Snapshot_hash + ".so"; + //if dest exists + if (new java.io.File(dest).exists()) { + downloadProxyLibButton.setEnabled(false); + checkBox.setEnabled(true); + String line = getFirstLineFromFile(enable_path); + //if exists, then it is enabled + if (line !=null) { + if (line.contains("v3")) { + checkBox.setChecked(true); + checkBox.setEnabled(false); + checkBoxClassDump.setEnabled(true); + checkBoxClassDump.setChecked(true); + } else { + checkBox.setChecked(true); + } + } else { + checkBox.setChecked(false); + } + } else { + downloadProxyLibButton.setEnabled(true); + checkBox.setChecked(false); + checkBox.setEnabled(false); + } + String destDump = getFilesDir().getAbsolutePath() + "/v3-" + entry.Snapshot_hash + ".so"; + //if dest exists + if (new java.io.File(destDump).exists()) { + downloadClassDumpButton.setEnabled(false); + checkBoxClassDump.setEnabled(true); + //if exists, then it is enabled + if (new java.io.File(enable_path).exists()) { + //read the file content + String line = getFirstLineFromFile(enable_path); + if (line!=null && line.contains("v3")) { + checkBoxClassDump.setChecked(true); + } else { + checkBoxClassDump.setChecked(false); + } + } else { + checkBoxClassDump.setChecked(false); + } + } else { + downloadClassDumpButton.setEnabled(true); + checkBoxClassDump.setChecked(false); + checkBoxClassDump.setEnabled(false); + } + + } else { + apkName.setText("Unsupported Flutter " + flutterHash); + } + }); + }).start(); + + apkName.setText("Flutter app. Finding hash... "); + + } else { + apkName.setText("Not a Flutter app"); + } + } catch (IOException e) { + throw new RuntimeException(e); + } + + } else{ + apkName.setText("No APK found"); + } + + } catch (PackageManager.NameNotFoundException e) { + throw new RuntimeException(e); + } + + ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> { + Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars()); + v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom); + return insets; + }); + } +} diff --git a/app/src/main/java/com/tinyhack/zygiskreflutter/AppListAdapter.java b/app/src/main/java/com/tinyhack/zygiskreflutter/AppListAdapter.java new file mode 100644 index 0000000..6b88e03 --- /dev/null +++ b/app/src/main/java/com/tinyhack/zygiskreflutter/AppListAdapter.java @@ -0,0 +1,100 @@ +package com.tinyhack.zygiskreflutter; + +import android.content.pm.ApplicationInfo; +import android.content.pm.PackageManager; +import android.view.LayoutInflater; +import android.view.View; +import android.view.ViewGroup; +import android.widget.TextView; + +import androidx.recyclerview.widget.RecyclerView; + +import java.util.ArrayList; +import java.util.List; + +public class AppListAdapter extends RecyclerView.Adapter { + + public interface OnItemClickListener { + void onItemClick(ApplicationInfo item); + } + + private List appList; + private List origList; + private OnItemClickListener listener; + + public class ViewHolder extends RecyclerView.ViewHolder { + private final TextView appName; + + + public ViewHolder(View view) { + super(view); + appName = (TextView) view.findViewById(R.id.app_name); + view.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + // Call the onItemClick method of the listener + if (listener != null) { + int position = getAdapterPosition(); + if (position != RecyclerView.NO_POSITION) { + listener.onItemClick(appList.get(position)); + } + } + } + }); + } + public TextView getAppName() { + return appName; + } + } + + private PackageManager pm; + + public AppListAdapter(List appList, PackageManager pm, OnItemClickListener listener) { + this.appList = appList; + this.origList = new ArrayList<>(appList); + this.pm = pm; + this.listener = listener; + } + + @Override + public AppListAdapter.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) { + View view = LayoutInflater.from(viewGroup.getContext()) + .inflate(R.layout.list_item, viewGroup, false); + + return new ViewHolder(view); + } + + @Override + public void onBindViewHolder(ViewHolder viewHolder, final int position) { + viewHolder.getAppName().setText(appList.get(position).loadLabel(pm).toString()); + } + + private String lastQuery = null; + + public void filter(String text) { + List listToUse = origList; + if (lastQuery != null && text.startsWith(lastQuery)) { + listToUse = appList; + lastQuery = text; + } else { + lastQuery = text; + } + List filteredList = new ArrayList<>(); + //filter original list + for (ApplicationInfo item : listToUse) { + String label = pm.getApplicationLabel(item).toString(); + + //if (item.loadLabel(pm).toString().toLowerCase().contains(text.toLowerCase())) { + if (label.toLowerCase().contains(text.toLowerCase())) { + filteredList.add(item); + } + } + appList = filteredList; + notifyDataSetChanged(); + } + + @Override + public int getItemCount() { + return appList.size(); + } +} diff --git a/app/src/main/java/com/tinyhack/zygiskreflutter/DownloadFileTask.java b/app/src/main/java/com/tinyhack/zygiskreflutter/DownloadFileTask.java new file mode 100644 index 0000000..8553c2d --- /dev/null +++ b/app/src/main/java/com/tinyhack/zygiskreflutter/DownloadFileTask.java @@ -0,0 +1,80 @@ +package com.tinyhack.zygiskreflutter; + +import android.os.Handler; +import android.os.Looper; +import android.widget.ProgressBar; + +import java.io.BufferedInputStream; +import java.io.FileOutputStream; +import java.io.InputStream; +import java.io.OutputStream; +import java.net.HttpURLConnection; +import java.net.URL; +import java.util.concurrent.ExecutorService; +import java.util.concurrent.Executors; +import java.util.concurrent.Future; + +public class DownloadFileTask { + + //create listener for error and success + public interface DownloadListener { + void onSuccess(); + void onError(String message); + } + + private ProgressBar progressBar; + private ExecutorService executorService; + private Handler handler; + private DownloadListener listener; + + public DownloadFileTask(ProgressBar progressBar) { + this.progressBar = progressBar; + this.executorService = Executors.newSingleThreadExecutor(); + this.handler = new Handler(Looper.getMainLooper()); + } + + public void setListener(DownloadListener listener) { + this.listener = listener; + } + + public void downloadFile(String urlPath, String dest) { + Future future = executorService.submit(() -> { + try { + URL url = new URL(urlPath); + HttpURLConnection connection = (HttpURLConnection) url.openConnection(); + connection.connect(); + + // Get file length + int fileLength = connection.getContentLength(); + + // Download the file + InputStream input = new BufferedInputStream(url.openStream()); + OutputStream output = new FileOutputStream(dest); + + byte data[] = new byte[1024]; + long total = 0; + int count; + while ((count = input.read(data)) != -1) { + total += count; + // Publish the progress + int finalCount = (int) (total * 100 / fileLength); + handler.post(() -> progressBar.setProgress(finalCount)); + output.write(data, 0, count); + } + + output.flush(); + output.close(); + input.close(); + connection.disconnect(); + if (listener != null) { + handler.post(() -> listener.onSuccess()); + } + } catch (Exception e) { + if (listener != null) { + handler.post(() -> listener.onError(e.getMessage())); + } + e.printStackTrace(); + } + }); + } +} diff --git a/app/src/main/java/com/tinyhack/zygiskreflutter/EngineHashInfo.java b/app/src/main/java/com/tinyhack/zygiskreflutter/EngineHashInfo.java new file mode 100644 index 0000000..a25b5f2 --- /dev/null +++ b/app/src/main/java/com/tinyhack/zygiskreflutter/EngineHashInfo.java @@ -0,0 +1,119 @@ +package com.tinyhack.zygiskreflutter; + +import android.content.Context; + +import java.io.BufferedReader; +import java.io.FileInputStream; +import java.io.FileNotFoundException; +import java.io.FileOutputStream; +import java.io.IOException; +import java.io.InputStream; +import java.io.InputStreamReader; +import java.net.HttpURLConnection; +import java.net.URL; +import java.util.ArrayList; +import java.util.List; +import java.io.File; + +public class EngineHashInfo { + + public static class EngineHashEntry { + String version; + String Engine_commit; + String Snapshot_hash; + } + + EngineHashEntry findEntryBySnapshotHash(String snapshotHash) { + for (EngineHashEntry entry : entries) { + if (entry.Snapshot_hash.equals(snapshotHash)) { + return entry; + } + } + return null; + } + + private Context context; + + private static EngineHashInfo instance = null; + + //entries + private EngineHashEntry[] entries; + + public static EngineHashInfo getInstance(Context context) { + if (instance == null) { + instance = new EngineHashInfo(context); + } + return instance; + } + + private EngineHashInfo(Context context) { + this.context = context; + } + + private String getLocalCacheFile() { + //get files dir + return context.getFilesDir().getAbsolutePath() + "/enginehash.csv"; + } + + private void readFromFile(String localCacheFile) throws IOException { + //open file + File file = new File(localCacheFile); + InputStream inputStream = new FileInputStream(file); + BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream)); + List entries = new ArrayList<>(); + String line; + while ((line = reader.readLine()) != null) { + String[] parts = line.split(","); + EngineHashEntry entry = new EngineHashEntry(); + entry.version = parts[0]; + entry.Engine_commit = parts[1]; + entry.Snapshot_hash = parts[2]; + entries.add(entry); + } + this.entries = entries.toArray(new EngineHashEntry[0]); + } + + void updateData() throws IOException { + //check if we hace a local cache + String localCacheFile = getLocalCacheFile(); + File file = new File(localCacheFile); + if (file.exists()) { + try { + //read from file + readFromFile(localCacheFile); + return; + } catch (IOException e) { + //if we can't read from file, download again + file.delete(); + } + } + downloadData(); + } + + void downloadData() throws IOException { + String localCacheFile = getLocalCacheFile(); + + // Create a Url object from the string + URL url = new URL("https://raw.githubusercontent.com/Impact-I/reFlutter/main/enginehash.csv"); + + // Create a connection + HttpURLConnection connection = (HttpURLConnection) url.openConnection(); + + // Get the input stream of the connection + InputStream inputStream = connection.getInputStream(); + //save to file + //open file + FileOutputStream outputStream = new FileOutputStream(localCacheFile); + byte[] buffer = new byte[1024]; + int bytesRead; + while ((bytesRead = inputStream.read(buffer)) != -1) { + outputStream.write(buffer, 0, bytesRead); + } + //close file + outputStream.close(); + readFromFile(localCacheFile); + + // Disconnect the connection + connection.disconnect(); + } +} diff --git a/app/src/main/java/com/tinyhack/zygiskreflutter/MainActivity.java b/app/src/main/java/com/tinyhack/zygiskreflutter/MainActivity.java new file mode 100644 index 0000000..21d5fef --- /dev/null +++ b/app/src/main/java/com/tinyhack/zygiskreflutter/MainActivity.java @@ -0,0 +1,173 @@ +package com.tinyhack.zygiskreflutter; +import androidx.appcompat.widget.SearchView; +import androidx.appcompat.widget.SearchView.OnQueryTextListener; +import androidx.annotation.NonNull; +import androidx.appcompat.app.ActionBarDrawerToggle; +import androidx.appcompat.app.AppCompatActivity; +import androidx.core.view.GravityCompat; +import androidx.drawerlayout.widget.DrawerLayout; +import androidx.recyclerview.widget.LinearLayoutManager; +import androidx.recyclerview.widget.RecyclerView; + +import android.content.Intent; +import android.content.SharedPreferences; +import android.content.pm.ApplicationInfo; +import android.os.Bundle; +import android.os.Looper; +import android.view.MenuItem; +import android.view.Menu; + +import com.google.android.material.navigation.NavigationView; + +import android.content.pm.PackageManager; +import android.widget.Toast; + +import java.io.IOException; +import java.util.List; +import android.os.Handler; +public class MainActivity extends AppCompatActivity { + + // Used to load the 'zygiskreflutter' library on application startup. + static { + System.loadLibrary("zygiskreflutter"); + } + + private RecyclerView recyclerView; + private RecyclerView.Adapter mAdapter; + private RecyclerView.LayoutManager layoutManager; + private DrawerLayout drawerLayout; + private NavigationView navigationView; + private ActionBarDrawerToggle toggle; + + private Handler mHandler; + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + setContentView(R.layout.activity_main); + + mHandler = new Handler(Looper.getMainLooper()); + + drawerLayout = findViewById(R.id.drawer_layout); + navigationView = findViewById(R.id.nav_view); + + toggle = new ActionBarDrawerToggle(this, drawerLayout, R.string.open, R.string.close); + + drawerLayout.addDrawerListener(toggle); + toggle.syncState(); + + getSupportActionBar().setDisplayHomeAsUpEnabled(true); + + navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() { + @Override + public boolean onNavigationItemSelected(@NonNull MenuItem item) { + // Handle navigation view item clicks here. + int id = item.getItemId(); + + if (id == R.id.nav_set_host) { + Intent intent = new Intent(MainActivity.this, SetHostActivity.class); + startActivity(intent); + } + if (id == R.id.nav_about) { + Intent intent = new Intent(MainActivity.this, AboutActivity.class); + startActivity(intent); + } + + drawerLayout.closeDrawer(GravityCompat.START); + return true; + } + }); + recyclerView = (RecyclerView) findViewById(R.id.recyclerView); + + recyclerView.setHasFixedSize(true); + + layoutManager = new LinearLayoutManager(this); + recyclerView.setLayoutManager(layoutManager); + + PackageManager pm = getPackageManager(); + List apps = pm.getInstalledApplications(0); + + mAdapter = new AppListAdapter(apps, pm, new AppListAdapter.OnItemClickListener() { + @Override + public void onItemClick(ApplicationInfo item) { + Intent intent = new Intent(MainActivity.this, AppDetailActivity.class); + + // Put the selected information into the Intent + intent.putExtra("appName", item.loadLabel(pm).toString()); + intent.putExtra("packageName", item.packageName); + + // Start DetailActivity + startActivity(intent); + } + }); + recyclerView.setAdapter(mAdapter); + //run in new Thread + new Thread(new Runnable() { + @Override + public void run() { + EngineHashInfo engineHashInfo = EngineHashInfo.getInstance(MainActivity.this); + try { + engineHashInfo.updateData(); + } catch (IOException e) { + //show toast + Toast.makeText(MainActivity.this, "Error downloading data", Toast.LENGTH_LONG).show(); + } + } + }).start(); + + //get proxyIP, if not set, set to 192.168.1.1 + String proxyIP = Util.getPoxyIPFromFile(getFilesDir().getAbsolutePath()); + if (proxyIP==null || proxyIP.isEmpty()) { + Util.saveProxyIPToFile(getFilesDir().getAbsolutePath(), "192.168.1.1"); + } + } + + @Override + public boolean onOptionsItemSelected(MenuItem item) { + if (toggle.onOptionsItemSelected(item)) { + return true; + } + return super.onOptionsItemSelected(item); + } + + @Override + public boolean onCreateOptionsMenu(Menu menu) { + getMenuInflater().inflate(R.menu.top_menu, menu); + + MenuItem searchItem = menu.findItem(R.id.action_search); + SearchView searchView = (SearchView) searchItem.getActionView(); + + searchView.setOnQueryTextListener(new OnQueryTextListener() { + @Override + public boolean onQueryTextSubmit(String query) { + // Use the query to filter your data + //((AppListAdapter) mAdapter).filter(query); + mHandler.removeCallbacksAndMessages(null); + mHandler.postDelayed(new Runnable() { + @Override + public void run() { + ((AppListAdapter) mAdapter).filter(query); + } + }, 500); + + return false; + } + + @Override + public boolean onQueryTextChange(String newText) { + // Use the newText to filter your data as the user types + //((AppListAdapter) mAdapter).filter(newText); + mHandler.removeCallbacksAndMessages(null); + mHandler.postDelayed(new Runnable() { + @Override + public void run() { + ((AppListAdapter) mAdapter).filter(newText); + } + }, 500); + return false; + } + }); + + return true; + } +} diff --git a/app/src/main/java/com/tinyhack/zygiskreflutter/SetHostActivity.java b/app/src/main/java/com/tinyhack/zygiskreflutter/SetHostActivity.java new file mode 100644 index 0000000..57a43ab --- /dev/null +++ b/app/src/main/java/com/tinyhack/zygiskreflutter/SetHostActivity.java @@ -0,0 +1,61 @@ +package com.tinyhack.zygiskreflutter; + +import android.content.SharedPreferences; +import android.os.Bundle; +import android.text.Editable; +import android.widget.EditText; + +import androidx.activity.EdgeToEdge; +import androidx.appcompat.app.AppCompatActivity; +import androidx.core.graphics.Insets; +import androidx.core.view.ViewCompat; +import androidx.core.view.WindowInsetsCompat; +import android.text.TextWatcher; +import android.widget.TextView; + +import java.io.FileInputStream; +import java.io.FileOutputStream; + +public class SetHostActivity extends AppCompatActivity { + + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + EdgeToEdge.enable(this); + setContentView(R.layout.activity_set_host); + ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> { + Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars()); + v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom); + return insets; + }); + EditText editTextProxyIP = findViewById(R.id.proxyIP); + //get the current value + String proxyIP = Util.getPoxyIPFromFile(getFilesDir().getAbsolutePath()); + editTextProxyIP.setText(proxyIP); + + TextView IPStatus = findViewById(R.id.IPStatus); + IPStatus.setText("Valid IP"); + + //monitor changes + editTextProxyIP.addTextChangedListener(new TextWatcher() { + @Override + public void beforeTextChanged(CharSequence s, int start, int count, int after) { + } + @Override + public void onTextChanged(CharSequence s, int start, int before, int count) { + } + @Override + public void afterTextChanged(Editable s) { + //check if entry is valid IP + String ip = s.toString(); + if (!ip.matches("\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}")) { + IPStatus.setText("Invalid IP"); + return; + } + IPStatus.setText("Valid IP"); + Util.saveProxyIPToFile(getFilesDir().getAbsolutePath(),s.toString()); + } + }); + } +} diff --git a/app/src/main/java/com/tinyhack/zygiskreflutter/Util.java b/app/src/main/java/com/tinyhack/zygiskreflutter/Util.java new file mode 100644 index 0000000..5c3c5bb --- /dev/null +++ b/app/src/main/java/com/tinyhack/zygiskreflutter/Util.java @@ -0,0 +1,52 @@ +package com.tinyhack.zygiskreflutter; + +import java.io.FileInputStream; +import java.io.FileOutputStream; + +public class Util { + public static void saveProxyIPToFile(String filesdir, String ip) { + String path = filesdir + "/proxyip.txt"; + try { + FileOutputStream fos = new FileOutputStream(path); + //reformat IP so that it will have 3 digits for each part + String[] parts = ip.split("\\."); + for (int i = 0; i < parts.length; i++) { + int val = Integer.parseInt(parts[i]); + if (val < 100) { + //represent as octal + parts[i] = String.format("%03o", val); + } + } + ip = String.join(".", parts); + fos.write(ip.getBytes()); + fos.close(); + } catch (Exception e) { + e.printStackTrace(); + } + } + + public static String getPoxyIPFromFile(String filesdir) { + String path = filesdir + "/proxyip.txt"; + try { + FileInputStream fis = new FileInputStream(path); + byte[] data = new byte[(int) fis.available()]; + fis.read(data); + fis.close(); + String ip = new String(data); + //reformat IP so that it will have normal decimal + String[] parts = ip.split("\\."); + for (int i = 0; i < parts.length; i++) { + if (parts[i].startsWith("0")) { + //represent as octal + parts[i] = String.valueOf(Integer.parseInt(parts[i], 8)); + } + } + ip = String.join(".", parts); + return ip; + } catch (Exception e) { + e.printStackTrace(); + } + return null; + } + +} diff --git a/app/src/main/res/drawable/butterfly_svgrepo_com.xml b/app/src/main/res/drawable/butterfly_svgrepo_com.xml new file mode 100644 index 0000000..99cf4c7 --- /dev/null +++ b/app/src/main/res/drawable/butterfly_svgrepo_com.xml @@ -0,0 +1,9 @@ + + + diff --git a/app/src/main/res/drawable/ic_launcher_background.xml b/app/src/main/res/drawable/ic_launcher_background.xml new file mode 100644 index 0000000..07d5da9 --- /dev/null +++ b/app/src/main/res/drawable/ic_launcher_background.xml @@ -0,0 +1,170 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/app/src/main/res/drawable/ic_launcher_foreground.xml b/app/src/main/res/drawable/ic_launcher_foreground.xml new file mode 100644 index 0000000..e5f4934 --- /dev/null +++ b/app/src/main/res/drawable/ic_launcher_foreground.xml @@ -0,0 +1,9 @@ + + + diff --git a/app/src/main/res/layout/activity_about.xml b/app/src/main/res/layout/activity_about.xml new file mode 100644 index 0000000..0615bed --- /dev/null +++ b/app/src/main/res/layout/activity_about.xml @@ -0,0 +1,65 @@ + + + + + + + + + +