├── app
├── .gitignore
├── src
│ ├── main
│ │ ├── res
│ │ │ ├── values
│ │ │ │ ├── strings.xml
│ │ │ │ ├── colors.xml
│ │ │ │ └── styles.xml
│ │ │ ├── mipmap-hdpi
│ │ │ │ ├── ic_launcher.png
│ │ │ │ └── ic_launcher_round.png
│ │ │ ├── mipmap-mdpi
│ │ │ │ ├── ic_launcher.png
│ │ │ │ └── ic_launcher_round.png
│ │ │ ├── mipmap-xhdpi
│ │ │ │ ├── ic_launcher.png
│ │ │ │ └── ic_launcher_round.png
│ │ │ ├── mipmap-xxhdpi
│ │ │ │ ├── ic_launcher.png
│ │ │ │ └── ic_launcher_round.png
│ │ │ ├── mipmap-xxxhdpi
│ │ │ │ ├── ic_launcher.png
│ │ │ │ └── ic_launcher_round.png
│ │ │ └── layout
│ │ │ │ └── activity_main.xml
│ │ ├── AndroidManifest.xml
│ │ └── java
│ │ │ └── com
│ │ │ └── android
│ │ │ └── purify
│ │ │ ├── util
│ │ │ ├── ReplacingInputStream.java
│ │ │ └── FileUtil.java
│ │ │ ├── MainActivity.java
│ │ │ └── Purify.java
│ ├── test
│ │ └── java
│ │ │ └── com
│ │ │ └── android
│ │ │ └── purify
│ │ │ └── ExampleUnitTest.java
│ └── androidTest
│ │ └── java
│ │ └── com
│ │ └── android
│ │ └── purify
│ │ └── ExampleInstrumentedTest.java
├── proguard-rules.pro
└── build.gradle
├── settings.gradle
├── Purify.apk
├── .idea
├── copyright
│ └── profiles_settings.xml
├── modules.xml
├── runConfigurations.xml
├── gradle.xml
├── compiler.xml
└── misc.xml
├── gradle
└── wrapper
│ ├── gradle-wrapper.jar
│ └── gradle-wrapper.properties
├── .gitignore
├── gradle.properties
├── README.md
├── gradlew.bat
└── gradlew
/app/.gitignore:
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1 | /build
2 |
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/settings.gradle:
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1 | include ':app'
2 |
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/Purify.apk:
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https://raw.githubusercontent.com/echo-devim/purify/HEAD/Purify.apk
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/app/src/main/res/values/strings.xml:
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2 | Purify
3 |
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/.idea/copyright/profiles_settings.xml:
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/gradle/wrapper/gradle-wrapper.jar:
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https://raw.githubusercontent.com/echo-devim/purify/HEAD/gradle/wrapper/gradle-wrapper.jar
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/app/src/main/res/mipmap-hdpi/ic_launcher.png:
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https://raw.githubusercontent.com/echo-devim/purify/HEAD/app/src/main/res/mipmap-hdpi/ic_launcher.png
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/app/src/main/res/mipmap-mdpi/ic_launcher.png:
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https://raw.githubusercontent.com/echo-devim/purify/HEAD/app/src/main/res/mipmap-mdpi/ic_launcher.png
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/app/src/main/res/mipmap-xhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/echo-devim/purify/HEAD/app/src/main/res/mipmap-xhdpi/ic_launcher.png
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/app/src/main/res/mipmap-xxhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/echo-devim/purify/HEAD/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
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/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/echo-devim/purify/HEAD/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
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/app/src/main/res/mipmap-hdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/echo-devim/purify/HEAD/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
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/app/src/main/res/mipmap-mdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/echo-devim/purify/HEAD/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
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/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/echo-devim/purify/HEAD/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
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/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/echo-devim/purify/HEAD/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
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/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/echo-devim/purify/HEAD/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
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/.gitignore:
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1 | *.iml
2 | .gradle
3 | /local.properties
4 | /.idea/workspace.xml
5 | /.idea/libraries
6 | .DS_Store
7 | /build
8 | /captures
9 | .externalNativeBuild
10 |
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/app/src/main/res/values/colors.xml:
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3 | #3F51B5
4 | #303F9F
5 | #FF4081
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/gradle/wrapper/gradle-wrapper.properties:
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1 | #Mon Dec 11 10:14:12 CET 2017
2 | distributionBase=GRADLE_USER_HOME
3 | distributionPath=wrapper/dists
4 | zipStoreBase=GRADLE_USER_HOME
5 | zipStorePath=wrapper/dists
6 | distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
7 |
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/app/src/test/java/com/android/purify/ExampleUnitTest.java:
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1 | package com.android.purify;
2 |
3 | import org.junit.Test;
4 |
5 | import static org.junit.Assert.*;
6 |
7 | /**
8 | * Example local unit test, which will execute on the development machine (host).
9 | *
10 | * @see Testing documentation
11 | */
12 | public class ExampleUnitTest {
13 | @Test
14 | public void addition_isCorrect() throws Exception {
15 | assertEquals(4, 2 + 2);
16 | }
17 | }
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/.idea/runConfigurations.xml:
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/.idea/gradle.xml:
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/gradle.properties:
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1 | # Project-wide Gradle settings.
2 |
3 | # IDE (e.g. Android Studio) users:
4 | # Gradle settings configured through the IDE *will override*
5 | # any settings specified in this file.
6 |
7 | # For more details on how to configure your build environment visit
8 | # http://www.gradle.org/docs/current/userguide/build_environment.html
9 |
10 | # Specifies the JVM arguments used for the daemon process.
11 | # The setting is particularly useful for tweaking memory settings.
12 | org.gradle.jvmargs=-Xmx1536m
13 |
14 | # When configured, Gradle will run in incubating parallel mode.
15 | # This option should only be used with decoupled projects. More details, visit
16 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
17 | # org.gradle.parallel=true
18 |
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/app/src/androidTest/java/com/android/purify/ExampleInstrumentedTest.java:
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1 | package com.android.purify;
2 |
3 | import android.content.Context;
4 | import android.support.test.InstrumentationRegistry;
5 | import android.support.test.runner.AndroidJUnit4;
6 |
7 | import org.junit.Test;
8 | import org.junit.runner.RunWith;
9 |
10 | import static org.junit.Assert.*;
11 |
12 | /**
13 | * Instrumentation test, which will execute on an Android device.
14 | *
15 | * @see Testing documentation
16 | */
17 | @RunWith(AndroidJUnit4.class)
18 | public class ExampleInstrumentedTest {
19 | @Test
20 | public void useAppContext() throws Exception {
21 | // Context of the app under test.
22 | Context appContext = InstrumentationRegistry.getTargetContext();
23 |
24 | assertEquals("com.android.purify", appContext.getPackageName());
25 | }
26 | }
27 |
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/app/src/main/AndroidManifest.xml:
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/app/proguard-rules.pro:
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1 | # Add project specific ProGuard rules here.
2 | # By default, the flags in this file are appended to flags specified
3 | # in /home/greg/Android/Sdk/tools/proguard/proguard-android.txt
4 | # You can edit the include path and order by changing the proguardFiles
5 | # directive in build.gradle.
6 | #
7 | # For more details, see
8 | # http://developer.android.com/guide/developing/tools/proguard.html
9 |
10 | # Add any project specific keep options here:
11 |
12 | # If your project uses WebView with JS, uncomment the following
13 | # and specify the fully qualified class name to the JavaScript interface
14 | # class:
15 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
16 | # public *;
17 | #}
18 |
19 | # Uncomment this to preserve the line number information for
20 | # debugging stack traces.
21 | #-keepattributes SourceFile,LineNumberTable
22 |
23 | # If you keep the line number information, uncomment this to
24 | # hide the original source file name.
25 | #-renamesourcefileattribute SourceFile
26 |
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/app/build.gradle:
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1 | apply plugin: 'com.android.application'
2 |
3 | android {
4 | compileSdkVersion 25
5 | buildToolsVersion "25.0.3"
6 | defaultConfig {
7 | applicationId "com.android.purify"
8 | minSdkVersion 17
9 | targetSdkVersion 25
10 | versionCode 1
11 | versionName "1.0"
12 | testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
13 | }
14 | buildTypes {
15 | release {
16 | minifyEnabled false
17 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
18 | }
19 | }
20 | }
21 |
22 | dependencies {
23 | compile fileTree(dir: 'libs', include: ['*.jar'])
24 | androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
25 | exclude group: 'com.android.support', module: 'support-annotations'
26 | })
27 | compile 'com.android.support:appcompat-v7:25.3.1'
28 | compile 'com.android.support.constraint:constraint-layout:1.0.2'
29 | testCompile 'junit:junit:4.12'
30 | }
31 |
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/README.md:
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1 | # Purify
2 | Purify is a Proof-of-Concept Android application that can remove advertisements (ads) from any apk (i.e. Android app). It doesn't need root privileges.
3 | ### Disclaimer
4 | This application is just a proof of concept, I wrote it in few hours. The code isn't so tidy and the application can fail. If the application fails, the new purified apk (i.e. without ads) will crash.
5 | ### How it works
6 | Purify takes in input an apk and changes the content of `classes.dex`. In details, the application looks for well known ads domains (e.g. example.ads.site.com) and replaces the domains with invalid domains. Thus, for example, an application instead to do an http request to `example.ads.site.com/banner.php?size=100` will request an invalid url as `aaaaaaaaaaaaaaa/banner.php?size=100`. For the majority of the apps this should mean that the app will not display any ads. However, some apps can crash, so it doesn't work always.
7 | ### Requirements
8 | Purify can edit the `classes.dex` file inside an apk, it will produce a new *purified* apk containing the same (old) signature. You can try to install it, however probably you will get an error during the installation asserting that the package is corrupted. A valid apk **must be signed**, otherwise you can't install it, so you need to use also an apk signer to correctly sign the application. I recommend the open source [ZipSigner](https://play.google.com/store/apps/details?id=kellinwood.zipsigner2). Purify requires Android 4.2 or higher.
9 |
10 | #### License
11 | GPLv3
12 |
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/app/src/main/java/com/android/purify/util/ReplacingInputStream.java:
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1 | package com.android.purify.util;
2 | import java.io.*;
3 | import java.util.*;
4 |
5 | public class ReplacingInputStream extends FilterInputStream {
6 |
7 | LinkedList inQueue = new LinkedList();
8 | LinkedList outQueue = new LinkedList();
9 | final byte[] search, replacement;
10 |
11 | public ReplacingInputStream(InputStream in,
12 | byte[] search,
13 | byte[] replacement) {
14 | super(in);
15 | this.search = search;
16 | this.replacement = replacement;
17 | }
18 |
19 | private boolean isMatchFound() {
20 | Iterator inIter = inQueue.iterator();
21 | for (int i = 0; i < search.length; i++)
22 | if (!inIter.hasNext() || search[i] != inIter.next())
23 | return false;
24 | return true;
25 | }
26 |
27 | private void readAhead() throws IOException {
28 | // Work up some look-ahead.
29 | while (inQueue.size() < search.length) {
30 | int next = super.read();
31 | inQueue.offer(next);
32 | if (next == -1)
33 | break;
34 | }
35 | }
36 |
37 | @Override
38 | public int read() throws IOException {
39 | // Next byte already determined.
40 | if (outQueue.isEmpty()) {
41 | readAhead();
42 |
43 | if (isMatchFound()) {
44 | for (int i = 0; i < search.length; i++)
45 | inQueue.remove();
46 |
47 | for (byte b : replacement)
48 | outQueue.offer((int) b);
49 | } else
50 | outQueue.add(inQueue.remove());
51 | }
52 |
53 | return outQueue.remove();
54 | }
55 |
56 | // TODO: Override the other read methods.
57 | }
58 |
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/.idea/misc.xml:
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/gradlew.bat:
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1 | @if "%DEBUG%" == "" @echo off
2 | @rem ##########################################################################
3 | @rem
4 | @rem Gradle startup script for Windows
5 | @rem
6 | @rem ##########################################################################
7 |
8 | @rem Set local scope for the variables with windows NT shell
9 | if "%OS%"=="Windows_NT" setlocal
10 |
11 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
12 | set DEFAULT_JVM_OPTS=
13 |
14 | set DIRNAME=%~dp0
15 | if "%DIRNAME%" == "" set DIRNAME=.
16 | set APP_BASE_NAME=%~n0
17 | set APP_HOME=%DIRNAME%
18 |
19 | @rem Find java.exe
20 | if defined JAVA_HOME goto findJavaFromJavaHome
21 |
22 | set JAVA_EXE=java.exe
23 | %JAVA_EXE% -version >NUL 2>&1
24 | if "%ERRORLEVEL%" == "0" goto init
25 |
26 | echo.
27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
28 | echo.
29 | echo Please set the JAVA_HOME variable in your environment to match the
30 | echo location of your Java installation.
31 |
32 | goto fail
33 |
34 | :findJavaFromJavaHome
35 | set JAVA_HOME=%JAVA_HOME:"=%
36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe
37 |
38 | if exist "%JAVA_EXE%" goto init
39 |
40 | echo.
41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
42 | echo.
43 | echo Please set the JAVA_HOME variable in your environment to match the
44 | echo location of your Java installation.
45 |
46 | goto fail
47 |
48 | :init
49 | @rem Get command-line arguments, handling Windowz variants
50 |
51 | if not "%OS%" == "Windows_NT" goto win9xME_args
52 | if "%@eval[2+2]" == "4" goto 4NT_args
53 |
54 | :win9xME_args
55 | @rem Slurp the command line arguments.
56 | set CMD_LINE_ARGS=
57 | set _SKIP=2
58 |
59 | :win9xME_args_slurp
60 | if "x%~1" == "x" goto execute
61 |
62 | set CMD_LINE_ARGS=%*
63 | goto execute
64 |
65 | :4NT_args
66 | @rem Get arguments from the 4NT Shell from JP Software
67 | set CMD_LINE_ARGS=%$
68 |
69 | :execute
70 | @rem Setup the command line
71 |
72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
73 |
74 | @rem Execute Gradle
75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
76 |
77 | :end
78 | @rem End local scope for the variables with windows NT shell
79 | if "%ERRORLEVEL%"=="0" goto mainEnd
80 |
81 | :fail
82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
83 | rem the _cmd.exe /c_ return code!
84 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
85 | exit /b 1
86 |
87 | :mainEnd
88 | if "%OS%"=="Windows_NT" endlocal
89 |
90 | :omega
91 |
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/app/src/main/java/com/android/purify/MainActivity.java:
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1 | package com.android.purify;
2 |
3 | import android.Manifest;
4 | import android.content.Intent;
5 | import android.net.Uri;
6 | import android.os.Handler;
7 | import android.os.Message;
8 | import android.support.v4.app.ActivityCompat;
9 | import android.support.v7.app.AppCompatActivity;
10 | import android.os.Bundle;
11 | import android.util.Log;
12 | import android.view.View;
13 | import android.widget.TextView;
14 | import android.widget.Toast;
15 |
16 | import com.android.purify.util.FileUtil;
17 | import com.android.purify.util.ReplacingInputStream;
18 |
19 | import java.io.BufferedOutputStream;
20 | import java.io.ByteArrayInputStream;
21 | import java.io.File;
22 | import java.io.FileOutputStream;
23 | import java.io.IOException;
24 | import java.io.InputStream;
25 | import java.net.URISyntaxException;
26 |
27 | public class MainActivity extends AppCompatActivity {
28 |
29 | private static final int FILE_SELECT_CODE = 0;
30 | private String apkPath;
31 | private TextView apkName;
32 | private TextView txtLog;
33 |
34 | @Override
35 | protected void onCreate(Bundle savedInstanceState) {
36 | super.onCreate(savedInstanceState);
37 | setContentView(R.layout.activity_main);
38 | apkName = (TextView)findViewById(R.id.txtApkPath);
39 | txtLog = (TextView)findViewById(R.id.txtLog);
40 | }
41 |
42 | public void onBtnSelectClick(View v) {
43 | ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1);
44 | showFileChooser();
45 | }
46 |
47 | public void onBtnPurifyClick(View v) {
48 | if ((apkPath == null) || (apkPath.equals(""))) {
49 | Toast.makeText(this, "Please select an apk first", Toast.LENGTH_SHORT).show();
50 | return;
51 | }
52 | final String outDir = this.getExternalCacheDir().getPath() + "/purifytmp/";
53 | txtLog.setText("");
54 | final Handler handler = new Handler(){
55 | @Override
56 | public void handleMessage(Message msg) {
57 | txtLog.append((String) msg.obj);
58 | super.handleMessage(msg);
59 | }
60 | };
61 | Purify p = new Purify(apkPath, outDir, handler);
62 | p.purifyApk();
63 | }
64 |
65 | private void showFileChooser() {
66 | Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
67 | intent.setType("*/*");
68 | intent.addCategory(Intent.CATEGORY_OPENABLE);
69 |
70 | try {
71 | startActivityForResult(
72 | Intent.createChooser(intent, "Select an APK to purify"),
73 | FILE_SELECT_CODE);
74 | } catch (android.content.ActivityNotFoundException ex) {
75 | // Potentially direct the user to the Market with a Dialog
76 | Toast.makeText(this, "Please install a File Manager.",
77 | Toast.LENGTH_SHORT).show();
78 | }
79 | }
80 |
81 | @Override
82 | protected void onActivityResult(int requestCode, int resultCode, Intent data) {
83 | switch (requestCode) {
84 | case FILE_SELECT_CODE:
85 | if (resultCode == RESULT_OK) {
86 | // Get the Uri of the selected file
87 | Uri uri = data.getData();
88 | Log.d("purify", uri.toString());
89 | // Get the path
90 | try {
91 | apkPath = FileUtil.getPath(this, uri);
92 | apkName.setText(apkPath.substring(apkPath.lastIndexOf('/')+1));
93 | } catch (URISyntaxException e) {
94 | Toast.makeText(this, "Error: invalid path",
95 | Toast.LENGTH_SHORT).show();
96 | }
97 | }
98 | break;
99 | }
100 | super.onActivityResult(requestCode, resultCode, data);
101 | }
102 |
103 |
104 | }
105 |
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/app/src/main/java/com/android/purify/Purify.java:
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1 | package com.android.purify;
2 |
3 | import android.os.Handler;
4 | import android.os.Message;
5 | import android.util.Log;
6 |
7 | import com.android.purify.util.FileUtil;
8 | import com.android.purify.util.ReplacingInputStream;
9 |
10 | import java.io.BufferedOutputStream;
11 | import java.io.ByteArrayInputStream;
12 | import java.io.File;
13 | import java.io.FileOutputStream;
14 | import java.io.IOException;
15 | import java.io.InputStream;
16 |
17 | public class Purify {
18 |
19 | private String outDir;
20 | private String apkPath;
21 | private Handler output;
22 |
23 | public Purify(String apkPath, String outDir, Handler output) {
24 | this.apkPath = apkPath;
25 | this.outDir = outDir;
26 | this.output = output;
27 | }
28 |
29 | private void print(String text) {
30 | Message msg = this.output.obtainMessage();
31 | msg.obj = text;
32 | this.output.sendMessage(msg);
33 | }
34 |
35 | public void purifyApk() {
36 | final File out = new File(outDir);
37 | out.mkdirs();
38 | File apk = new File(apkPath);
39 | if (apk.exists()) {
40 | print("Please wait...\n");
41 | print("Extracting APK...");
42 | Thread worker = new Thread(){
43 | @Override
44 | public void run() {
45 | //Step 1 - Unzip the apk
46 | if (FileUtil.unpackZip(outDir, apkPath)) {
47 | print("OK\n");
48 | } else {
49 | print("FAILED\n");
50 | return;
51 | }
52 | //Step 2 - Edit classes.dex to remove ads
53 | print("Removing ads urls...");
54 | try {
55 | removeAds(outDir + "classes.dex");
56 | print("OK\n");
57 | } catch (Exception e) {
58 | print("FAILED\n");
59 | }
60 | //Step 3 - Create the apk (i.e. a jar archive)
61 | //Remove previous signatures [disabled]
62 | //FileUtil.deleteRecursive(new File(outDir + "/META-INF"));
63 | print("Creating new apk...");
64 | String newApkPath = apkPath+"-purified.apk";
65 | if (createNewApk(outDir, newApkPath)) {
66 | print("OK\n");
67 | } else {
68 | print("FAILED\n");
69 | return;
70 | }
71 | //TODO: Step 4 - Sign the app [external, not implemented here]
72 | //Clear temporary files
73 | FileUtil.deleteRecursive(out);
74 | print("Finish! The APK is purified!\nSign and reinstall it.\n");
75 | print("New APK exported into:\n" + newApkPath);
76 | }
77 | };
78 | worker.start();
79 | } else {
80 | print("Invalid apk:\n" + apkPath);
81 | }
82 | }
83 |
84 | private void removeAds(String path) throws IOException {
85 | String[] domains = {"googleads.g.doubleclick.net", "mobileads.google.com"};
86 | Log.d("purify","Removing ads from "+path);
87 | for (String domain : domains) {
88 | File file = new File(path);
89 | byte[] bytearr = FileUtil.file2bytearray(file);
90 | ByteArrayInputStream bis = new ByteArrayInputStream(bytearr);
91 | String replacementString = "";
92 | for (int i = 0; i < domain.length(); i++) replacementString += "a";
93 | byte[] search = domain.getBytes();
94 | byte[] replacement = replacementString.getBytes();
95 | InputStream ris = new ReplacingInputStream(bis, search, replacement);
96 | BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(path));
97 |
98 | int b;
99 | while (-1 != (b = ris.read()))
100 | bos.write(b);
101 |
102 | bos.close();
103 |
104 | }
105 | }
106 |
107 | /* An apk is just a jar file */
108 | private boolean createNewApk(String source, String destination) {
109 | return FileUtil.createJarFile(source, destination);
110 | }
111 | }
112 |
--------------------------------------------------------------------------------
/gradlew:
--------------------------------------------------------------------------------
1 | #!/usr/bin/env bash
2 |
3 | ##############################################################################
4 | ##
5 | ## Gradle start up script for UN*X
6 | ##
7 | ##############################################################################
8 |
9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
10 | DEFAULT_JVM_OPTS=""
11 |
12 | APP_NAME="Gradle"
13 | APP_BASE_NAME=`basename "$0"`
14 |
15 | # Use the maximum available, or set MAX_FD != -1 to use that value.
16 | MAX_FD="maximum"
17 |
18 | warn ( ) {
19 | echo "$*"
20 | }
21 |
22 | die ( ) {
23 | echo
24 | echo "$*"
25 | echo
26 | exit 1
27 | }
28 |
29 | # OS specific support (must be 'true' or 'false').
30 | cygwin=false
31 | msys=false
32 | darwin=false
33 | case "`uname`" in
34 | CYGWIN* )
35 | cygwin=true
36 | ;;
37 | Darwin* )
38 | darwin=true
39 | ;;
40 | MINGW* )
41 | msys=true
42 | ;;
43 | esac
44 |
45 | # Attempt to set APP_HOME
46 | # Resolve links: $0 may be a link
47 | PRG="$0"
48 | # Need this for relative symlinks.
49 | while [ -h "$PRG" ] ; do
50 | ls=`ls -ld "$PRG"`
51 | link=`expr "$ls" : '.*-> \(.*\)$'`
52 | if expr "$link" : '/.*' > /dev/null; then
53 | PRG="$link"
54 | else
55 | PRG=`dirname "$PRG"`"/$link"
56 | fi
57 | done
58 | SAVED="`pwd`"
59 | cd "`dirname \"$PRG\"`/" >/dev/null
60 | APP_HOME="`pwd -P`"
61 | cd "$SAVED" >/dev/null
62 |
63 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
64 |
65 | # Determine the Java command to use to start the JVM.
66 | if [ -n "$JAVA_HOME" ] ; then
67 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
68 | # IBM's JDK on AIX uses strange locations for the executables
69 | JAVACMD="$JAVA_HOME/jre/sh/java"
70 | else
71 | JAVACMD="$JAVA_HOME/bin/java"
72 | fi
73 | if [ ! -x "$JAVACMD" ] ; then
74 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
75 |
76 | Please set the JAVA_HOME variable in your environment to match the
77 | location of your Java installation."
78 | fi
79 | else
80 | JAVACMD="java"
81 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
82 |
83 | Please set the JAVA_HOME variable in your environment to match the
84 | location of your Java installation."
85 | fi
86 |
87 | # Increase the maximum file descriptors if we can.
88 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
89 | MAX_FD_LIMIT=`ulimit -H -n`
90 | if [ $? -eq 0 ] ; then
91 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
92 | MAX_FD="$MAX_FD_LIMIT"
93 | fi
94 | ulimit -n $MAX_FD
95 | if [ $? -ne 0 ] ; then
96 | warn "Could not set maximum file descriptor limit: $MAX_FD"
97 | fi
98 | else
99 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
100 | fi
101 | fi
102 |
103 | # For Darwin, add options to specify how the application appears in the dock
104 | if $darwin; then
105 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
106 | fi
107 |
108 | # For Cygwin, switch paths to Windows format before running java
109 | if $cygwin ; then
110 | APP_HOME=`cygpath --path --mixed "$APP_HOME"`
111 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
112 | JAVACMD=`cygpath --unix "$JAVACMD"`
113 |
114 | # We build the pattern for arguments to be converted via cygpath
115 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
116 | SEP=""
117 | for dir in $ROOTDIRSRAW ; do
118 | ROOTDIRS="$ROOTDIRS$SEP$dir"
119 | SEP="|"
120 | done
121 | OURCYGPATTERN="(^($ROOTDIRS))"
122 | # Add a user-defined pattern to the cygpath arguments
123 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then
124 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
125 | fi
126 | # Now convert the arguments - kludge to limit ourselves to /bin/sh
127 | i=0
128 | for arg in "$@" ; do
129 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
130 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
131 |
132 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
133 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
134 | else
135 | eval `echo args$i`="\"$arg\""
136 | fi
137 | i=$((i+1))
138 | done
139 | case $i in
140 | (0) set -- ;;
141 | (1) set -- "$args0" ;;
142 | (2) set -- "$args0" "$args1" ;;
143 | (3) set -- "$args0" "$args1" "$args2" ;;
144 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
145 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
146 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
147 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
148 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
149 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
150 | esac
151 | fi
152 |
153 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
154 | function splitJvmOpts() {
155 | JVM_OPTS=("$@")
156 | }
157 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
158 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
159 |
160 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
161 |
--------------------------------------------------------------------------------
/app/src/main/java/com/android/purify/util/FileUtil.java:
--------------------------------------------------------------------------------
1 | package com.android.purify.util;
2 |
3 | import android.annotation.SuppressLint;
4 | import android.content.ContentUris;
5 | import android.content.Context;
6 | import android.database.Cursor;
7 | import android.net.Uri;
8 | import android.os.Build;
9 | import android.os.Environment;
10 | import android.provider.DocumentsContract;
11 | import android.provider.MediaStore;
12 | import android.util.Log;
13 |
14 | import java.io.BufferedInputStream;
15 | import java.io.BufferedOutputStream;
16 | import java.io.File;
17 | import java.io.FileInputStream;
18 | import java.io.FileNotFoundException;
19 | import java.io.FileOutputStream;
20 | import java.io.IOException;
21 | import java.io.InputStream;
22 | import java.net.URISyntaxException;
23 | import java.util.jar.Attributes;
24 | import java.util.jar.JarEntry;
25 | import java.util.jar.JarOutputStream;
26 | import java.util.jar.Manifest;
27 | import java.util.zip.ZipEntry;
28 | import java.util.zip.ZipInputStream;
29 | import java.util.zip.ZipOutputStream;
30 |
31 | /**
32 | * Created by Aki on 1/7/2017.
33 | */
34 |
35 | public class FileUtil {
36 | /*
37 | * Gets the file path of the given Uri.
38 | */
39 | @SuppressLint("NewApi")
40 | public static String getPath(Context context, Uri uri) throws URISyntaxException {
41 | final boolean needToCheckUri = Build.VERSION.SDK_INT >= 19;
42 | String selection = null;
43 | String[] selectionArgs = null;
44 | // Uri is different in versions after KITKAT (Android 4.4), we need to
45 | // deal with different Uris.
46 | if (needToCheckUri && DocumentsContract.isDocumentUri(context.getApplicationContext(), uri)) {
47 | if (isExternalStorageDocument(uri)) {
48 | final String docId = DocumentsContract.getDocumentId(uri);
49 | final String[] split = docId.split(":");
50 | return Environment.getExternalStorageDirectory() + "/" + split[1];
51 | } else if (isDownloadsDocument(uri)) {
52 | final String id = DocumentsContract.getDocumentId(uri);
53 | uri = ContentUris.withAppendedId(
54 | Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
55 | } else if (isMediaDocument(uri)) {
56 | final String docId = DocumentsContract.getDocumentId(uri);
57 | final String[] split = docId.split(":");
58 | final String type = split[0];
59 | if ("image".equals(type)) {
60 | uri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
61 | } else if ("video".equals(type)) {
62 | uri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
63 | } else if ("audio".equals(type)) {
64 | uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
65 | }
66 | selection = "_id=?";
67 | selectionArgs = new String[]{split[1]};
68 | }
69 | }
70 | if ("content".equalsIgnoreCase(uri.getScheme())) {
71 | String[] projection = {MediaStore.Images.Media.DATA};
72 | Cursor cursor = null;
73 | try {
74 | cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
75 | int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
76 | if (cursor.moveToFirst()) {
77 | return cursor.getString(column_index);
78 | }
79 | } catch (Exception e) {
80 | }
81 | } else if ("file".equalsIgnoreCase(uri.getScheme())) {
82 | return uri.getPath();
83 | }
84 | return null;
85 | }
86 |
87 |
88 | /**
89 | * @param uri The Uri to check.
90 | * @return Whether the Uri authority is ExternalStorageProvider.
91 | */
92 | public static boolean isExternalStorageDocument(Uri uri) {
93 | return "com.android.externalstorage.documents".equals(uri.getAuthority());
94 | }
95 |
96 | /**
97 | * @param uri The Uri to check.
98 | * @return Whether the Uri authority is DownloadsProvider.
99 | */
100 | public static boolean isDownloadsDocument(Uri uri) {
101 | return "com.android.providers.downloads.documents".equals(uri.getAuthority());
102 | }
103 |
104 | /**
105 | * @param uri The Uri to check.
106 | * @return Whether the Uri authority is MediaProvider.
107 | */
108 | public static boolean isMediaDocument(Uri uri) {
109 | return "com.android.providers.media.documents".equals(uri.getAuthority());
110 | }
111 |
112 | public static boolean unpackZip(String path, String zipname) {
113 | File zipFile = new File(zipname);
114 | File targetDirectory = new File(path);
115 | try {
116 | ZipInputStream zis = new ZipInputStream(new BufferedInputStream(new FileInputStream(zipFile)));
117 | ZipEntry ze;
118 | int count;
119 | byte[] buffer = new byte[8192];
120 | while ((ze = zis.getNextEntry()) != null) {
121 | File file = new File(targetDirectory, ze.getName());
122 | File dir = ze.isDirectory() ? file : file.getParentFile();
123 | if (!dir.isDirectory() && !dir.mkdirs())
124 | throw new FileNotFoundException("Failed to ensure directory: " +
125 | dir.getAbsolutePath());
126 | if (ze.isDirectory())
127 | continue;
128 | FileOutputStream fout = new FileOutputStream(file);
129 | try {
130 | while ((count = zis.read(buffer)) != -1)
131 | fout.write(buffer, 0, count);
132 | } finally {
133 | fout.close();
134 | }
135 | /* if time should be restored as well
136 | long time = ze.getTime();
137 | if (time > 0)
138 | file.setLastModified(time);
139 | */
140 | }
141 | zis.close();
142 | } catch (Exception e) {
143 | Log.e("purify", "Error during unzip: " + e.getMessage());
144 | return false;
145 | }
146 |
147 | return true;
148 | }
149 |
150 | public static byte[] file2bytearray(File file) {
151 | byte[] b = new byte[(int) file.length()];
152 | try {
153 | FileInputStream fileInputStream = new FileInputStream(file);
154 | fileInputStream.read(b);
155 | } catch (FileNotFoundException e) {
156 | System.out.println("File Not Found.");
157 | e.printStackTrace();
158 | }
159 | catch (IOException e1) {
160 | System.out.println("Error Reading The File.");
161 | e1.printStackTrace();
162 | }
163 | return b;
164 | }
165 |
166 | public static void deleteRecursive(File fileOrDirectory) {
167 | if (fileOrDirectory.isDirectory())
168 | for (File child : fileOrDirectory.listFiles())
169 | deleteRecursive(child);
170 |
171 | fileOrDirectory.delete();
172 | }
173 |
174 | public static boolean createJarFile(String path, String destination) {
175 | try {
176 | JarOutputStream target = new JarOutputStream(new FileOutputStream(destination));
177 | File inputPath = new File(path);
178 | File[] fileList = inputPath.listFiles();
179 | for (File file : fileList) {
180 | add2jar(file, target, path.length());
181 | }
182 | target.close();
183 | return true;
184 | } catch (Exception e) {
185 | Log.d("purify", "Error during jar creation: " + e.getMessage());
186 | return false;
187 | }
188 | }
189 |
190 | private static void add2jar(File source, JarOutputStream target, int basePathLength) throws IOException
191 | {
192 | BufferedInputStream in = null;
193 | try
194 | {
195 | if (source.isDirectory())
196 | {
197 | String name = source.getPath().replace("\\", "/");
198 | if (!name.isEmpty())
199 | {
200 | if (!name.endsWith("/"))
201 | name += "/";
202 | JarEntry entry = new JarEntry(name);
203 | entry.setTime(source.lastModified());
204 | target.putNextEntry(entry);
205 | target.closeEntry();
206 | }
207 | for (File nestedFile: source.listFiles())
208 | add2jar(nestedFile, target, basePathLength);
209 | return;
210 | }
211 |
212 | String unmodifiedFilePath = source.getPath();
213 | String relativePath = unmodifiedFilePath.substring(basePathLength);
214 | JarEntry entry = new JarEntry(relativePath);
215 | entry.setTime(source.lastModified());
216 | target.putNextEntry(entry);
217 | in = new BufferedInputStream(new FileInputStream(source));
218 |
219 | byte[] buffer = new byte[1024];
220 | while (true)
221 | {
222 | int count = in.read(buffer);
223 | if (count == -1)
224 | break;
225 | target.write(buffer, 0, count);
226 | }
227 | target.closeEntry();
228 | }
229 | finally
230 | {
231 | if (in != null)
232 | in.close();
233 | }
234 | }
235 | }
--------------------------------------------------------------------------------