first commit

.gitignore

@@ -0,0 +1,42 @@
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

.idea/.gitignore

@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml

.idea/gradle.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="gradleJvm" value="#JAVA_HOME" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+          </set>
+        </option>
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>

.idea/misc.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="17" project-jdk-type="JavaSDK" />
+</project>

build.gradle

@@ -0,0 +1,62 @@
+plugins {
+    id 'java'
+    id 'java-gradle-plugin'
+    id 'maven-publish'
+    id 'com.jfrog.artifactory' version '5+'
+}
+
+group = 'io.nexilis'
+version = '1.0.0-alpha-13'
+
+compileJava {
+    sourceCompatibility = JavaVersion.VERSION_11
+    targetCompatibility = JavaVersion.VERSION_11
+}
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    implementation("org.ow2.asm:asm:9.7")
+    implementation("org.ow2.asm:asm-commons:9.7")
+    testImplementation platform('org.junit:junit-bom:5.10.3')
+    testImplementation 'org.junit.jupiter:junit-jupiter'
+}
+
+test {
+    useJUnitPlatform()
+}
+
+gradlePlugin {
+    plugins {
+        project {
+            id = "io.nexilis.in-dm-plugin"
+            implementationClass = "io.nexilis.InjectDMPlugin"
+        }
+    }
+}
+
+publishing {
+    publications {
+        mavenJava(MavenPublication) {
+            from components.java
+        }
+    }
+}
+
+artifactory {
+    contextUrl = 'http://192.168.1.38:8082/artifactory'
+    publish {
+        repository {
+            repoKey = 'ob-in-plugin'
+            username = "development"
+            password = "AP6wH1jwMWCRwDBftXh4cLmtYq7"
+        }
+        defaults {
+            publications(publishing.publications.names.toArray())
+            publishArtifacts = true
+            publishPom = true
+        }
+    }
+}

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Thu Oct 24 11:55:23 WIB 2024
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.8-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

gradlew

@@ -0,0 +1,234 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

settings.gradle

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+rootProject.name = 'in-dm-plugin'
+

src/main/java/io/nexilis/InjectDMPlugin.java

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+package io.nexilis;
+
+import io.nexilis.transformer.InjectProtectionTask;
+import io.nexilis.util.Util;
+import org.gradle.api.Plugin;
+import org.gradle.api.Project;
+
+import java.io.IOException;
+import java.nio.file.Path;
+
+public class InjectDMPlugin implements Plugin<Project> {
+    @Override
+    public void apply(Project project) {
+        project.getConfigurations().maybeCreate("injectDMProtection");
+        project.getTasks().register("injectDMProtection", InjectProtectionTask.class, task -> {
+            task.setGroup("build");
+            task.setDescription("Injects protection code into the compiled class files.");
+            task.getInputDir().set(project.getLayout().getBuildDirectory());
+        });
+        project.afterEvaluate(evaluatedProject -> evaluatedProject.getTasks().configureEach(task -> {
+            InjectProtectionTask injectTask = (InjectProtectionTask) project.getTasks().named("injectDMProtection").get();
+            if (task.getName().equals("preBuild")) {
+                task.doLast(t -> {
+                    Path path = Util.findMainActivity(evaluatedProject.getProjectDir().toString());
+                    injectTask.getInputDir().set(path.toFile());
+                });
+            }
+            if (task.getName().matches("compileDebugJavaWithJavac|compileReleaseJavaWithJavac")) {
+                task.doLast(t -> {
+                    try {
+                        injectTask.injectProtection();
+                        System.out.print("> Task :" + evaluatedProject.getName() + ":" + injectTask.getName());
+                    } catch (IOException e) {
+                        throw new RuntimeException(e);
+                    }
+                });
+            }
+        }));
+    }
+}

src/main/java/io/nexilis/debug/Activity.java

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+package io.nexilis.debug;
+
+public abstract class Activity {
+
+    public void onCreate() {
+
+    }
+}

src/main/java/io/nexilis/debug/Debug.java

@@ -0,0 +1,26 @@
+package io.nexilis.debug;
+
+import java.io.IOException;
+import java.io.UncheckedIOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.stream.Stream;
+
+public class Debug {
+
+    public static void main(String[] args) {
+        String build = "C:\\Users\\yayan\\Documents\\11122024\\nxsample\\android\\app\\build";
+        String fileName = "MainActivity";
+        try (Stream<Path> stream = Files.walk(Paths.get(build))) {
+//            stream.forEach(path -> System.out.println(">>> " + path.toString()));
+            stream.filter(path -> path.toString().endsWith(fileName + ".class"))
+                    .forEach(classFile -> {
+                        System.out.println("> Task :" + ":filter:" + classFile);
+                    });
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+}

src/main/java/io/nexilis/debug/LibraryInjector.java

@@ -0,0 +1,34 @@
+package io.nexilis.debug;
+
+import io.nexilis.transformer.ProtectionInjector;
+import org.objectweb.asm.ClassReader;
+import org.objectweb.asm.ClassVisitor;
+import org.objectweb.asm.ClassWriter;
+
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+
+public class LibraryInjector {
+
+    public static void main(String[] args) {
+        inject(".\\build\\classes\\java\\main\\io\\nexilis\\debug\\MainActivity.class");
+    }
+
+    public static void inject(String input) {
+        try {
+            ClassReader classReader = new ClassReader(Files.newInputStream(Paths.get(input)));
+            ClassWriter classWriter = new ClassWriter(ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
+            ClassVisitor classVisitor = new ProtectionInjector(classWriter, null);
+            classReader.accept(classVisitor, ClassReader.EXPAND_FRAMES);
+
+            byte[] modifiedClass = classWriter.toByteArray();
+            try (FileOutputStream fileOutputStream = new FileOutputStream(".\\build\\classes\\java\\main\\io\\nexilis\\debug\\MainActivityMod.class")) {
+                fileOutputStream.write(modifiedClass);
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+}

src/main/java/io/nexilis/debug/MainActivity.java

@@ -0,0 +1,5 @@
+package io.nexilis.debug;
+
+public class MainActivity extends Activity {
+
+}

src/main/java/io/nexilis/transformer/InjectProtectionTask.java

@@ -0,0 +1,62 @@
+package io.nexilis.transformer;
+
+import org.gradle.api.DefaultTask;
+import org.gradle.api.file.DirectoryProperty;
+import org.gradle.api.tasks.InputDirectory;
+import org.gradle.api.tasks.OutputDirectory;
+import org.gradle.api.tasks.TaskAction;
+import org.objectweb.asm.ClassReader;
+import org.objectweb.asm.ClassWriter;
+
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.UncheckedIOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.stream.Stream;
+
+public class InjectProtectionTask extends DefaultTask {
+
+    private final DirectoryProperty inputDir = getProject().getObjects().directoryProperty();
+    private final DirectoryProperty outputDir = getProject().getObjects().directoryProperty();
+
+    @InputDirectory
+    public DirectoryProperty getInputDir() {
+        return inputDir;
+    }
+
+    @OutputDirectory
+    public DirectoryProperty getOutputDir() {
+        return outputDir;
+    }
+
+    @TaskAction
+    public void injectProtection() throws IOException {
+        Path inputPath = inputDir.getAsFile().get().toPath();
+        String fileName = inputPath.getFileName().toString().split("\\.")[0];
+        try (Stream<Path> stream = Files.walk(getProject().getLayout().getBuildDirectory().get().getAsFile().toPath())) {
+            stream.filter(path -> path.toString().endsWith(fileName + ".class"))
+                    .forEach(classFile -> {
+                        try {
+                            injectProtectionIntoClass(classFile);
+                        } catch (IOException e) {
+                            throw new UncheckedIOException(e);
+                        }
+                    });
+        }
+    }
+
+    private void injectProtectionIntoClass(Path classFile) throws IOException {
+        FileInputStream fis = new FileInputStream(classFile.toFile());
+        ClassReader cr = new ClassReader(fis);
+        ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);
+        cr.accept(new ProtectionInjector(cw, getProject()), ClassReader.EXPAND_FRAMES);
+        byte[] b = cw.toByteArray();
+        FileOutputStream fos = new FileOutputStream(classFile.toFile());
+        fos.write(b);
+        fos.close();
+        fis.close();
+    }
+}
+

src/main/java/io/nexilis/transformer/ProtectionInjector.java

@@ -0,0 +1,97 @@
+package io.nexilis.transformer;
+
+import org.gradle.api.Project;
+import org.objectweb.asm.ClassVisitor;
+import org.objectweb.asm.MethodVisitor;
+import org.objectweb.asm.Opcodes;
+import org.objectweb.asm.commons.AdviceAdapter;
+
+public class ProtectionInjector extends ClassVisitor {
+
+    private String superName;
+
+    private final Project project;
+
+    private boolean isOnCreateExist = false;
+
+    public ProtectionInjector(ClassVisitor cv, Project project) {
+        super(Opcodes.ASM9, cv);
+        this.project = project;
+    }
+
+    @Override
+    public void visit(int version, int access, String name, String signature, String superName, String[] interfaces) {
+        String[] newInterfaces = append(interfaces, "io/nexilis/dm/Callback");
+        this.superName = superName;
+        super.visit(version, access, name, signature, superName, newInterfaces);
+    }
+
+    private String[] append(String[] arr, String element) {
+        String[] newArr = new String[arr.length + 1];
+        System.arraycopy(arr, 0, newArr, 0, arr.length);
+        newArr[arr.length] = element;
+        return newArr;
+    }
+
+    @Override
+    public MethodVisitor visitMethod(int access, String name, String descriptor, String signature, String[] exceptions) {
+        MethodVisitor mv = super.visitMethod(access, name, descriptor, signature, exceptions);
+        if ("onCreate".equals(name) && "(Landroid/os/Bundle;)V".equals(descriptor)) {
+            isOnCreateExist = true;
+            return new InjectDetectionLibraryMethodVisitor(api, mv, access, name, descriptor, project);
+        }
+        return mv;
+    }
+
+    private static class InjectDetectionLibraryMethodVisitor extends AdviceAdapter {
+
+        private final Project project;
+
+        protected InjectDetectionLibraryMethodVisitor(int api, MethodVisitor methodVisitor, int access, String name, String descriptor, Project project) {
+            super(api, methodVisitor, access, name, descriptor);
+            this.project = project;
+        }
+
+        @Override
+        protected void onMethodEnter() {
+            super.onMethodEnter();
+        }
+
+        @Override
+        protected void onMethodExit(int opcode) {
+            super.onMethodExit(opcode);
+            injectConnect(mv, project);
+        }
+    }
+
+    private static void injectConnect(MethodVisitor mv, Project project) {
+        mv.visitLdcInsn(project != null ? (project.getProperties().get("nexilis.appId") == null ? "" : project.getProperties().get("nexilis.appId")) : "");
+        mv.visitLdcInsn(project != null ? (project.getProperties().get("nexilis.account") == null ? "" : project.getProperties().get("nexilis.account")) : "");
+        mv.visitVarInsn(Opcodes.ALOAD, 0);
+        mv.visitLdcInsn(project != null ? (project.getProperties().get("nexilis.floatingMode") == null ? 0 : Integer.parseInt(String.valueOf(project.getProperties().get("nexilis.floatingMode")))) : 0);
+        mv.visitVarInsn(Opcodes.ALOAD, 0);
+        mv.visitMethodInsn(Opcodes.INVOKESTATIC, "io/nexilis/dm/API", "connect", "(Ljava/lang/String;Ljava/lang/String;Landroid/app/Activity;ILio/nexilis/dm/Callback;)V", false);
+    }
+
+    @Override
+    public void visitEnd() {
+        if (!isOnCreateExist) {
+            MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC, "onCreate", "(Landroid/os/Bundle;)V", null, null);
+            if (mv != null) {
+                mv.visitCode();
+
+                mv.visitVarInsn(Opcodes.ALOAD, 0);
+                mv.visitVarInsn(Opcodes.ALOAD, 1);
+                mv.visitMethodInsn(Opcodes.INVOKESPECIAL, superName, "onCreate", "(Landroid/os/Bundle;)V", false);
+
+                injectConnect(mv, project);
+
+                mv.visitInsn(Opcodes.RETURN);
+                mv.visitMaxs(1, 1);
+                mv.visitEnd();
+            }
+        }
+        super.visitEnd();
+    }
+}
+

src/main/java/io/nexilis/util/Util.java

@@ -0,0 +1,57 @@
+package io.nexilis.util;
+
+import java.nio.file.*;
+import java.nio.file.attribute.BasicFileAttributes;
+
+public class Util {
+
+    public static void main(String[] args) {
+        long t0 = System.currentTimeMillis();
+        Path path = findMainActivity("./");
+        String filename = path.getFileName().toString();
+        System.out.println(filename.substring(0, filename.lastIndexOf(".")) + " in " + (System.currentTimeMillis() - t0) + " ms");
+    }
+
+    public static Path findMainActivity(String dir) {
+        final Path[] mainPath = {null};
+        try {
+            String mainActivity = findMainOnManifest(dir);
+            Files.walkFileTree(Paths.get(dir), new SimpleFileVisitor<Path>() {
+                @Override
+                public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) {
+                    if (file.getFileName().toString().startsWith(mainActivity)) {
+                        mainPath[0] = file;
+                        return FileVisitResult.TERMINATE;
+                    }
+                    return FileVisitResult.CONTINUE;
+                }
+            });
+        } catch (Exception ignored) {
+        }
+        return mainPath[0];
+    }
+
+    private static String findMainOnManifest(String dir) {
+        final String[] path = {""};
+        try {
+            Files.walkFileTree(Paths.get(dir), new SimpleFileVisitor<Path>() {
+                @Override
+                public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) {
+                    if (file.getFileName().toString().equals("AndroidManifest.xml")) {
+                        try {
+                            String main = XmlParser.getMainActivity(Files.newInputStream(file));
+                            if (!main.isEmpty()) {
+                                path[0] = main;
+                                return FileVisitResult.TERMINATE;
+                            }
+                        } catch (Exception ignored) {
+                        }
+                    }
+                    return FileVisitResult.CONTINUE;
+                }
+            });
+        } catch (Exception ignored) {
+        }
+        return path[0];
+    }
+}

src/main/java/io/nexilis/util/XmlParser.java

@@ -0,0 +1,54 @@
+package io.nexilis.util;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.NodeList;
+import org.xml.sax.SAXException;
+
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+public class XmlParser {
+
+    public static void main(String[] args) {
+        try {
+            Path file = Paths.get("./libs/AndroidManifest.xml");
+            System.out.println(getMainActivity(Files.newInputStream(file.toFile().toPath())));
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    public static String getMainActivity(InputStream inputStream) throws ParserConfigurationException, IOException, SAXException {
+        DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
+        DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
+        Document doc = dBuilder.parse(inputStream);
+        doc.getDocumentElement().normalize();
+        NodeList activity = doc.getElementsByTagName("activity");
+        String main = "";
+        p:
+        for (int i = 0; i < activity.getLength(); i++) {
+            Element element = (Element) activity.item(i);
+            NodeList intent = element.getElementsByTagName("intent-filter");
+            for (int j = 0; j < intent.getLength(); j++) {
+                Element element1 = (Element) intent.item(j);
+                NodeList action = element1.getElementsByTagName("action");
+                for (int k = 0; k < action.getLength(); k++) {
+                    Element element2 = (Element) action.item(k);
+                    if (element2.getAttribute("android:name").equals("android.intent.action.MAIN")) {
+                        main = element.getAttribute("android:name");
+                        break p;
+                    }
+                }
+            }
+        }
+        String[] tmp = main.split("\\.");
+        return tmp[tmp.length - 1];
+    }
+}