switch to brook

app/build.gradle

@@ -1,11 +1,11 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 28
+    compileSdkVersion 33
     defaultConfig {
         applicationId "com.example.chepass"
-        minSdkVersion 15
-        targetSdkVersion 28
+        minSdkVersion 23
+        targetSdkVersion 33
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -18,13 +18,23 @@ android {
     }
 }
 
+repositories {
+    flatDir {
+        dirs 'src/libs'
+    }
+}
+
 dependencies {
-    implementation fileTree(dir: 'libs', include: ['*.jar'])
-    implementation 'com.android.support:appcompat-v7:28.0.0'
-    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
-    testImplementation 'junit:junit:4.12'
-    androidTestImplementation 'com.android.support.test:runner:1.0.2'
-    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
-    implementation project(path: ':tun2socks-sources')
-    implementation project(path: ':tun2socks')
+    implementation 'androidx.activity:activity:1.6.1'
+    implementation 'androidx.fragment:fragment:1.5.5'
+    implementation 'androidx.appcompat:appcompat:1.6.0'
+    implementation 'androidx.recyclerview:recyclerview:1.3.0-rc01'
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
+    testImplementation 'junit:junit:4.13.2'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.5'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
+    implementation 'com.github.aslamanver:retrofit-lite:v2.0.6'
+    implementation 'com.google.code.gson:gson:2.10.1'
+
+    api(name: 'golibs', ext: 'aar')
 }

app/src/main/AndroidManifest.xml

@@ -4,6 +4,7 @@
 
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
 
     <application
         android:allowBackup="true"
@@ -14,18 +15,22 @@
         android:theme="@style/AppTheme">
 
         <service
-            android:name=".ChepassService"
+            android:name=".ChepassVpnService"
             android:enabled="true"
-            android:exported="true"/>
-
-        <service android:name=".ChepassVpnService"
-            android:permission="android.permission.BIND_VPN_SERVICE">
+            android:exported="false"
+            android:permission="android.permission.BIND_VPN_SERVICE"
+            android:process=":vpn_background">
             <intent-filter>
-                <action android:name="android.net.VpnService"/>
+                <action android:name="android.net.VpnService" />
             </intent-filter>
+
+            <meta-data
+                android:name="android.net.VpnService.SUPPORTS_ALWAYS_ON"
+                android:value="true" />
         </service>
 
-        <activity android:name=".MainActivity">
+        <activity android:name=".MainActivity"
+            android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 

app/src/main/java/com/example/chepass/Authenticate.java

@@ -0,0 +1,81 @@
+package com.example.chepass;
+
+import android.content.Context;
+import android.widget.Toast;
+
+import com.google.gson.Gson;
+import com.retrofit.lite.services.APITask;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStreamWriter;
+import java.io.Writer;
+import java.util.Map;
+
+class ApiResponse {
+    public Boolean register;
+    public String address;
+    public String pass;
+}
+
+public class Authenticate implements APITask.Listener {
+    private final Context context;
+    private Callback callback;
+    private final String code;
+    private Boolean isCodeOnDisk;
+
+    public Authenticate(Context ctx, String c, Callback clbk){
+        context = ctx;
+        code = c;
+        callback = clbk;
+    }
+
+    public void Auth(){
+       isCodeOnDisk = CheckIfIsInDisk();
+       APITask.from(context).sendGET(101, "https://example.com/codes/" + code + ".json", null, this);
+    }
+
+    public boolean CheckIfIsInDisk(){
+        File file = new File(context.getFilesDir(),code + ".json");
+        return file.exists();
+    }
+
+    public void SaveOnDisk(){
+        try {
+            FileOutputStream fos = context.openFileOutput(code+".json",Context.MODE_PRIVATE);
+            Writer out = new OutputStreamWriter(fos);
+            out.write("ok");
+            out.close();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public void onSuccess(int pid, int status, Map<String, String> headers, String body) {
+        Gson gson = new Gson();
+        ApiResponse gsonObj = gson.fromJson(body, ApiResponse.class);
+        if(gsonObj.address == null || gsonObj.register == null || gsonObj.pass == null){
+            Toast.makeText(context, "Invalid Response",
+                    Toast.LENGTH_LONG).show();
+            return;
+        }
+        //if(!isCodeOnDisk && !gsonObj.register){
+        if(!gsonObj.register){
+            Toast.makeText(context, "This code was used! please obtain a new one",
+                    Toast.LENGTH_LONG).show();
+            return;
+        }
+        /*if(!isCodeOnDisk){
+            SaveOnDisk();
+        }*/
+        callback.onSuccess(gsonObj.address, gsonObj.pass);
+    }
+
+    @Override
+    public void onFailed(int pid, Exception ex) {
+        Toast.makeText(context, "Server side error please contact with support.",
+                Toast.LENGTH_LONG).show();
+    }
+}

app/src/main/java/com/example/chepass/BrookConnection.java

@@ -0,0 +1,23 @@
+package com.example.chepass;
+import tun2socks.Tun2socks;
+
+public class BrookConnection extends Thread{
+    public String address;
+    public String pass;
+    public void kill(){
+        try{
+            Tun2socks.stopClient();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public void run(){
+        try{
+            Tun2socks.startClient("127.0.0.1:8080", address, pass);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+}

app/src/main/java/com/example/chepass/Callback.java

@@ -0,0 +1,5 @@
+package com.example.chepass;
+
+public interface Callback {
+    void onSuccess(String address, String pass);
+}