Project commit

app/.gitignore

@@ -0,0 +1 @@
+/build

app/build.gradle

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+apply plugin: 'com.android.application'
+
+android {
+  compileSdkVersion 29
+  buildToolsVersion "29.0.3"
+
+  defaultConfig {
+    applicationId "org.bandie.yipanic"
+    minSdkVersion 23
+    targetSdkVersion 29
+    versionCode 1
+    versionName "1.1"
+    testFunctionalTest = false
+  }
+
+  buildTypes {
+    release {
+      minifyEnabled false
+      proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+    }
+  }
+
+}
+
+dependencies {
+  implementation fileTree(dir: 'libs', include: ['*.jar'])
+
+  implementation 'androidx.appcompat:appcompat:1.1.0'
+  implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+  implementation 'com.android.volley:volley:1.1.1'
+  implementation 'androidx.preference:preference:1.1.1'
+  implementation 'androidx.security:security-crypto:1.0.0-rc02'
+  implementation 'com.google.android.material:material:1.1.0'
+}

app/lint.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<lint>
+    <issue id="IconLocation">
+        <ignore path="src/main/res/drawable/bandie.png" />
+    </issue>
+</lint>

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

app/release/output.json

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+[{"outputType":{"type":"APK"},"apkData":{"type":"MAIN","splits":[],"versionCode":1,"versionName":"1.1","enabled":true,"outputFile":"app-release.apk","fullName":"release","baseName":"release","dirName":""},"path":"app-release.apk","properties":{}}]

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="org.bandie.yipanic">
+
+    <uses-permission android:name="android.permission.INTERNET" />
+
+    <application
+        android:allowBackup="false"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.Design">
+        <activity android:name=".PasscodeActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity
+            android:name=".SettingsActivity"
+            android:label="@string/title_activity_settings">
+            <meta-data
+                android:name="android.support.PARENT_ACTIVITY"
+                android:value=".CommandActivity" />
+        </activity>
+        <activity android:name=".CommandActivity">
+            <meta-data
+                android:name="android.support.PARENT_ACTIVITY"
+                android:value=".PasscodeActivity" />
+        </activity>
+    </application>
+
+</manifest>

app/src/main/java/org/bandie/yipanic/Command.java

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+package org.bandie.yipanic;
+
+import android.content.Context;
+import android.util.Log;
+import android.view.View;
+
+import androidx.security.crypto.EncryptedSharedPreferences;
+
+import com.android.volley.Request;
+import com.android.volley.Response;
+import com.android.volley.VolleyError;
+import com.android.volley.toolbox.JsonObjectRequest;
+import com.google.android.material.snackbar.Snackbar;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.io.IOException;
+import java.security.GeneralSecurityException;
+
+class Command {
+  private final Snackbar sbOk, sbNotSet, sbAccessDenied, sbFailed, sbNoServer;
+  private String server, k, s;
+
+  Command(View view, Context context) {
+    this.sbOk = Snackbar.make(view, "Sent. :)", 3000);
+    this.sbNotSet = Snackbar.make(view, "Command not set. :/", 3000);
+    this.sbAccessDenied = Snackbar.make(view, "Access denied. >:(", 3000);
+    this.sbFailed = Snackbar.make(view, "Failed. :C", 3000);
+    this.sbNoServer = Snackbar.make(view, "No server configured! :o", 3000);
+
+    try {
+      EncryptedSharedPreferences sharedPreferences = (EncryptedSharedPreferences) EncryptedSharedPreferences
+          .create(
+              "Yipanic",
+              "Yipanic",
+              context,
+              EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,
+              EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM
+          );
+      this.server = sharedPreferences.getString("server", null);
+      this.k = sharedPreferences.getString("key", null);
+      this.s = sharedPreferences.getString("secret", null);
+    } catch (IOException | GeneralSecurityException e) {
+      if (e.getMessage() != null)
+        Log.e("Yipanic", e.getMessage());
+      else
+        Log.e("Yipanic", "[ No exception message ]");
+    }
+  }
+
+  private JsonObjectRequest requestHandler(String cmd) {
+    JSONObject json = new JSONObject();
+    try {
+      json.put("key", this.k);
+      json.put("secret", this.s);
+      json.put("cmd", cmd);
+    } catch (JSONException e) {
+      if (e.getMessage() != null)
+        Log.e("Yipanic", e.getMessage());
+      else
+        Log.e("Yipanic", "[ No exception message ]");
+    }
+    if (this.server == null) {
+      sbNoServer.show();
+      return null;
+    }
+    return new JsonObjectRequest
+        (Request.Method.POST, this.server, json, new Response.Listener<JSONObject>() {
+
+          @Override
+          public void onResponse(JSONObject response) {
+            try {
+              if (response.getBoolean("access")) {
+                switch (response.getInt("error")) {
+                  case 0:
+                    sbOk.show();
+                    break;
+                  case 1:
+                    sbNotSet.show();
+                    break;
+                  case 2:
+                    //Password required
+                    break;
+                  case 4:
+                    //Password OK
+                    break;
+                }
+              } else {
+                sbAccessDenied.show();
+              }
+
+            } catch (JSONException e) {
+              if (e.getMessage() != null)
+                Log.e("Yip", e.getMessage());
+              else
+                Log.e("Yip", "[ No exception message ]");
+              sbFailed.show();
+            }
+          }
+        }, new Response.ErrorListener() {
+
+          @Override
+          public void onErrorResponse(VolleyError e) {
+            if (e.getMessage() != null)
+              Log.e("Yip", e.getMessage());
+            else
+              Log.e("Yip", "[ No exception message ]");
+            sbFailed.show();
+          }
+        });
+  }
+
+  JsonObjectRequest lock() {
+    return requestHandler("lock");
+  }
+
+  JsonObjectRequest shutdown() {
+    return requestHandler("shutdown");
+  }
+
+  JsonObjectRequest panic() {
+    return requestHandler("panic");
+  }
+
+  JsonObjectRequest infraShutdown() {
+    return requestHandler("infraShutdown");
+  }
+
+  JsonObjectRequest infraPanic() {
+    return requestHandler("infraPanic");
+  }
+
+}

app/src/main/java/org/bandie/yipanic/CommandActivity.java

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+package org.bandie.yipanic;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.Handler;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.ImageButton;
+import android.widget.Switch;
+
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.core.app.NavUtils;
+
+import com.android.volley.toolbox.JsonObjectRequest;
+import com.android.volley.toolbox.Volley;
+
+
+public class CommandActivity extends AppCompatActivity {
+
+
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    setContentView(R.layout.command_activity);
+
+    ImageButton b = findViewById(R.id.btnShutdown);
+    b.setEnabled(false);
+    b = findViewById(R.id.btnPanic);
+    b.setEnabled(false);
+    b = findViewById(R.id.btnInfraShutdown);
+    b.setEnabled(false);
+    b = findViewById(R.id.btnInfraPanic);
+    b.setEnabled(false);
+
+    Switch s = findViewById(R.id.swSecShutdown1);
+    s.setChecked(false);
+    s = findViewById(R.id.swSecShutdown2);
+    s.setChecked(false);
+    s = findViewById(R.id.swSecPanic1);
+    s.setChecked(false);
+    s = findViewById(R.id.swSecPanic2);
+    s.setChecked(false);
+    s = findViewById(R.id.swSecPanic3);
+    s.setChecked(false);
+    s = findViewById(R.id.swSecInfraShutdown1);
+    s.setChecked(false);
+    s = findViewById(R.id.swSecInfraShutdown2);
+    s.setChecked(false);
+    s = findViewById(R.id.swSecInfraPanic1);
+    s.setChecked(false);
+    s = findViewById(R.id.swSecInfraPanic2);
+    s.setChecked(false);
+    s = findViewById(R.id.swSecInfraPanic3);
+    s.setChecked(false);
+
+  }
+
+  @Override
+  public boolean onOptionsItemSelected(MenuItem item) {
+    System.out.println(item.getItemId());
+    switch (item.getItemId()) {
+      case 16908332:
+      case R.id.home:
+        NavUtils.navigateUpFromSameTask(this);
+        return true;
+      default:
+        return super.onOptionsItemSelected(item);
+    }
+  }
+
+  @Override
+  protected void onPause() {
+    super.onPause();
+    this.finish();
+  }
+
+  public void sendLockCmd(View view) {
+    Command c = new Command(view, getApplicationContext());
+    JsonObjectRequest send = c.lock();
+    if (send != null)
+      Volley.newRequestQueue(this).add(send);
+  }
+
+  public void sendShutdownCmd(View view) {
+    Command c = new Command(view, getApplicationContext());
+    JsonObjectRequest send = c.shutdown();
+    if (send != null)
+      Volley.newRequestQueue(this).add(send);
+  }
+
+  public void sendPanicCmd(View view) {
+    Command c = new Command(view, getApplicationContext());
+    JsonObjectRequest send = c.panic();
+    if (send != null)
+      Volley.newRequestQueue(this).add(send);
+  }
+
+  public void sendInfraShutdownCmd(View view) {
+    Command c = new Command(view, getApplicationContext());
+    JsonObjectRequest send = c.infraShutdown();
+    if (send != null)
+      Volley.newRequestQueue(this).add(send);
+  }
+
+  public void sendInfraPanicCmd(View view) {
+    Command c = new Command(view, getApplicationContext());
+    JsonObjectRequest send = c.infraPanic();
+    if (send != null)
+      Volley.newRequestQueue(this).add(send);
+  }
+
+  public void switchShutdown(View view) {
+    final Switch s = findViewById(view.getId());
+    Switch s1 = findViewById(R.id.swSecShutdown1);
+    Switch s2 = findViewById(R.id.swSecShutdown2);
+    ImageButton b = findViewById(R.id.btnShutdown);
+    if (s1.isChecked() && s2.isChecked())
+      b.setEnabled(true);
+    else
+      b.setEnabled(false);
+
+    if (s.isChecked()) {
+      Handler h = new Handler();
+      h.postDelayed(new Runnable() {
+        @Override
+        public void run() {
+          ImageButton b = findViewById(R.id.btnShutdown);
+          s.setChecked(false);
+          b.setEnabled(false);
+        }
+      }, 10000);
+    }
+  }
+
+  public void switchPanic(View view) {
+    final Switch s = findViewById(view.getId());
+    Switch s1 = findViewById(R.id.swSecPanic1);
+    Switch s2 = findViewById(R.id.swSecPanic2);
+    Switch s3 = findViewById(R.id.swSecPanic3);
+    ImageButton b = findViewById(R.id.btnPanic);
+    if (s1.isChecked() && s2.isChecked() && s3.isChecked())
+      b.setEnabled(true);
+    else
+      b.setEnabled(false);
+
+    if (s.isChecked()) {
+      Handler h = new Handler();
+      h.postDelayed(new Runnable() {
+        @Override
+        public void run() {
+          ImageButton b = findViewById(R.id.btnPanic);
+          s.setChecked(false);
+          b.setEnabled(false);
+        }
+      }, 10000);
+    }
+  }
+
+  public void switchInfraShutdown(View view) {
+    final Switch s = findViewById(view.getId());
+    Switch s1 = findViewById(R.id.swSecInfraShutdown1);
+    Switch s2 = findViewById(R.id.swSecInfraShutdown2);
+    ImageButton b = findViewById(R.id.btnInfraShutdown);
+    if (s1.isChecked() && s2.isChecked())
+      b.setEnabled(true);
+    else
+      b.setEnabled(false);
+
+    if (s.isChecked()) {
+      Handler h = new Handler();
+      h.postDelayed(new Runnable() {
+        @Override
+        public void run() {
+          ImageButton b = findViewById(R.id.btnInfraShutdown);
+          s.setChecked(false);
+          b.setEnabled(false);
+        }
+      }, 10000);
+    }
+  }
+
+  public void switchInfraPanic(View view) {
+    final Switch s = findViewById(view.getId());
+    Switch s1 = findViewById(R.id.swSecInfraPanic1);
+    Switch s2 = findViewById(R.id.swSecInfraPanic2);
+    Switch s3 = findViewById(R.id.swSecInfraPanic3);
+    ImageButton b = findViewById(R.id.btnInfraPanic);
+    if (s1.isChecked() && s2.isChecked() && s3.isChecked())
+      b.setEnabled(true);
+    else
+      b.setEnabled(false);
+
+    if (s.isChecked()) {
+      Handler h = new Handler();
+      h.postDelayed(new Runnable() {
+        @Override
+        public void run() {
+          ImageButton b = findViewById(R.id.btnInfraPanic);
+          s.setChecked(false);
+          b.setEnabled(false);
+        }
+      }, 10000);
+    }
+  }
+
+
+  public void startSettingsActivity(@SuppressWarnings("unused") View view) {
+    Intent intent = new Intent(this, SettingsActivity.class);
+    startActivity(intent);
+  }
+
+}

app/src/main/java/org/bandie/yipanic/PasscodeActivity.java

@@ -0,0 +1,120 @@
+package org.bandie.yipanic;
+
+import android.content.Intent;
+import android.media.MediaPlayer;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.KeyEvent;
+import android.view.View;
+import android.widget.EditText;
+
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.security.crypto.EncryptedSharedPreferences;
+
+import java.io.IOException;
+import java.security.GeneralSecurityException;
+import java.util.Random;
+
+public class PasscodeActivity<RequestQueue, StringRequest> extends AppCompatActivity {
+
+  private String passcode;
+
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    setContentView(R.layout.activity_passcode);
+
+    try {
+      EncryptedSharedPreferences sharedPreferences = (EncryptedSharedPreferences) EncryptedSharedPreferences
+          .create(
+              "Yipanic",
+              "Yipanic",
+              getApplicationContext(),
+              EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,
+              EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM
+          );
+      this.passcode = sharedPreferences.getString("passcode", null);
+    } catch (IOException | GeneralSecurityException e) {
+      if (e.getMessage() != null)
+        Log.e("Yipanic", e.getMessage());
+      else
+        Log.e("Yipanic", "[ No exception message ]");
+    }
+
+    if (this.passcode == null) {
+      Intent intent = new Intent(this, CommandActivity.class);
+      startActivity(intent);
+    }
+  }
+
+  @Override
+  protected void onResume() {
+    super.onResume();
+    try {
+      EncryptedSharedPreferences sharedPreferences = (EncryptedSharedPreferences) EncryptedSharedPreferences
+          .create(
+              "Yipanic",
+              "Yipanic",
+              getApplicationContext(),
+              EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,
+              EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM
+          );
+      this.passcode = sharedPreferences.getString("passcode", null);
+    } catch (IOException | GeneralSecurityException e) {
+      if (e.getMessage() != null)
+        Log.e("Yip", e.getMessage());
+      else
+        Log.e("Yip", "[ No exception message ]");
+    }
+
+    if (this.passcode == null) {
+      Intent intent = new Intent(this, CommandActivity.class);
+      startActivity(intent);
+    }
+  }
+
+  private void checkPasscode() {
+    EditText v = findViewById(R.id.pwPasscodeInput);
+    if (v.getText().toString().equals(this.passcode) || this.passcode == null) {
+      v.setText("");
+      Intent intent = new Intent(this, CommandActivity.class);
+      startActivity(intent);
+    } else {
+      v.setText("");
+      v.setError("Passcode wrong.");
+    }
+  }
+
+  public void yip(@SuppressWarnings("unused") View view) {
+    int audio;
+
+    switch (new Random().nextInt(4)) {
+      default:
+      case 0:
+        audio = R.raw.yip1;
+        break;
+      case 1:
+        audio = R.raw.yip2;
+        break;
+      case 2:
+        audio = R.raw.yip3;
+        break;
+      case 3:
+        audio = R.raw.yip4;
+        break;
+    }
+
+    MediaPlayer mp = MediaPlayer.create(this, audio);
+    mp.start();
+  }
+
+  @Override
+  public boolean onKeyUp(int keyCode, KeyEvent event) {
+    if (keyCode == KeyEvent.KEYCODE_ENTER) {
+      this.checkPasscode();
+      return true;
+    }
+    return true;
+  }
+
+}

app/src/main/java/org/bandie/yipanic/SettingsActivity.java

@@ -0,0 +1,197 @@
+package org.bandie.yipanic;
+
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.EditText;
+
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.core.app.NavUtils;
+import androidx.security.crypto.EncryptedSharedPreferences;
+
+import com.google.android.material.snackbar.Snackbar;
+
+import java.io.IOException;
+import java.security.GeneralSecurityException;
+
+public class SettingsActivity extends AppCompatActivity {
+
+  @Override
+  public boolean onOptionsItemSelected(MenuItem item) {
+    switch (item.getItemId()) {
+      case 16908332:
+      case R.id.home:
+        NavUtils.navigateUpFromSameTask(this);
+        return true;
+      default:
+        return super.onOptionsItemSelected(item);
+    }
+  }
+
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    setContentView(R.layout.settings_activity);
+    ActionBar actionBar = getSupportActionBar();
+    EditText srv = findViewById(R.id.textServer);
+
+    if (actionBar != null) {
+      actionBar.setDisplayHomeAsUpEnabled(true);
+    }
+
+    try {
+      EncryptedSharedPreferences sharedPreferences = (EncryptedSharedPreferences) EncryptedSharedPreferences
+          .create(
+              "Yipanic",
+              "Yipanic",
+              getApplicationContext(),
+              EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,
+              EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM
+          );
+      String server = sharedPreferences.getString("server", null);
+      srv.setText(server);
+    } catch (IOException | GeneralSecurityException e) {
+      if (e.getMessage() != null)
+        Log.e("Yipanic", e.getMessage());
+      else
+        Log.e("Yipanic", "[ No exception message ]");
+    }
+
+  }
+
+  @Override
+  protected void onPause() {
+    super.onPause();
+    this.finish();
+  }
+
+  public void saveServerSettings(View view) {
+    Snackbar sbSaved = Snackbar.make(view, "Server settings saved! <3", 3000);
+    Snackbar sbFailedToSave = Snackbar.make(view, "Couldn't save settings! :'(", 3000);
+    try {
+      EditText srv = findViewById(R.id.textServer);
+      EditText k = findViewById(R.id.pwKey);
+      EditText s = findViewById(R.id.pwSecret);
+
+      EncryptedSharedPreferences sharedPreferences = (EncryptedSharedPreferences) EncryptedSharedPreferences
+          .create(
+              "Yipanic",
+              "Yipanic",
+              this,
+              EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,
+              EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM
+          );
+
+      SharedPreferences.Editor sharedPrefsEditor = sharedPreferences.edit();
+      sharedPrefsEditor.putString("server", srv.getText().toString());
+      if (!k.getText().toString().equals(""))
+        sharedPrefsEditor.putString("key", k.getText().toString());
+      if (!s.getText().toString().equals(""))
+        sharedPrefsEditor.putString("secret", s.getText().toString());
+
+      sharedPrefsEditor.apply();
+      sbSaved.show();
+
+    } catch (IOException | GeneralSecurityException e) {
+      if (e.getMessage() != null)
+        Log.e("Yipanic", e.getMessage());
+      else
+        Log.e("Yipanic", "[ No exception message ]");
+      sbFailedToSave.show();
+    }
+
+  }
+
+  public void savePasscode(View view) {
+    Snackbar sbSaved = Snackbar.make(view, "Passcode saved! <3", 3000);
+    Snackbar sbFailedToSave = Snackbar.make(view, "Couldn't save! :'(", 3000);
+    try {
+      EditText pc = findViewById(R.id.pwSetPasscode);
+      EditText pcc = findViewById(R.id.pwSetPasscodeConfirm);
+      String pcS = pc.getText().toString();
+      String pccS = pcc.getText().toString();
+
+      if (pcS.equals("") || pccS.equals("")) {
+        pc.setError("Passcode is empty. >;(");
+        pcc.setError("Passcode is empty. >;(");
+        sbFailedToSave.show();
+        return;
+      }
+
+      if (pcS.length() < 4) {
+        pc.setError("Passcode needs to have at least 4 digits.");
+        pcc.setError("Passcode needs to have at least 4 digits.");
+        sbFailedToSave.show();
+        return;
+      }
+
+      if (!pcS.equals(pccS)) {
+        pc.setError("Passcode didn't match. ;(");
+        pcc.setError("Passcode didn't match. ;(");
+        sbFailedToSave.show();
+        return;
+      }
+
+      EncryptedSharedPreferences sharedPreferences = (EncryptedSharedPreferences) EncryptedSharedPreferences
+          .create(
+              "Yipanic",
+              "Yipanic",
+              this,
+              EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,
+              EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM
+          );
+
+      SharedPreferences.Editor sharedPrefsEditor = sharedPreferences.edit();
+      sharedPrefsEditor.putString("passcode", pcS);
+      sharedPrefsEditor.apply();
+      sbSaved.show();
+      pc.setText("");
+      pcc.setText("");
+    } catch (IOException | GeneralSecurityException e) {
+      if (e.getMessage() != null)
+        Log.e("Yipanic", e.getMessage());
+      else
+        Log.e("Yipanic", "[ No exception message ]");
+      sbFailedToSave.show();
+    }
+  }
+
+  public void deletePasscode(View view) {
+    Snackbar sbSaved = Snackbar.make(view, "Passcode deleted! D:", 3000);
+    Snackbar sbFailedToSave = Snackbar.make(view, "Couldn't delete passcode! :'(", 3000);
+    try {
+      EditText pc = findViewById(R.id.pwSetPasscode);
+      String pcS = pc.getText().toString();
+
+      EncryptedSharedPreferences sharedPreferences = (EncryptedSharedPreferences) EncryptedSharedPreferences
+          .create(
+              "Yipanic",
+              "Yipanic",
+              this,
+              EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,
+              EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM
+          );
+
+      SharedPreferences.Editor sharedPrefsEditor = sharedPreferences.edit();
+
+      if (pcS.equals(sharedPreferences.getString("passcode", null))) {
+        sharedPrefsEditor.remove("passcode");
+        sharedPrefsEditor.apply();
+        sbSaved.show();
+      } else {
+        pc.setError("Wrong passcode.");
+        sbFailedToSave.show();
+      }
+
+    } catch (IOException | GeneralSecurityException e) {
+      if (e.getMessage() != null)
+        Log.e("Yipanic", e.getMessage());
+      else
+        Log.e("Yipanic", "[ No exception message ]");
+      sbFailedToSave.show();
+    }
+  }
+}

app/src/main/res/layout/activity_passcode.xml

@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+  xmlns:app="http://schemas.android.com/apk/res-auto"
+  xmlns:tools="http://schemas.android.com/tools"
+  android:layout_width="match_parent"
+  android:layout_height="match_parent"
+  tools:context=".PasscodeActivity">
+
+  <EditText
+    android:id="@+id/pwPasscodeInput"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:layout_marginTop="240dp"
+    android:ems="10"
+    android:importantForAutofill="no"
+    android:inputType="numberPassword"
+    app:layout_constraintEnd_toEndOf="parent"
+    app:layout_constraintStart_toStartOf="parent"
+    app:layout_constraintTop_toTopOf="parent" />
+
+  <TextView
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:labelFor="@id/pwPasscodeInput"
+    android:text="@string/passcode"
+    app:layout_constraintBottom_toTopOf="@+id/pwPasscodeInput"
+    app:layout_constraintEnd_toEndOf="parent"
+    app:layout_constraintHorizontal_bias="0.498"
+    app:layout_constraintStart_toStartOf="parent" />
+
+  <ImageView
+    android:id="@+id/imageView2"
+    android:layout_width="157dp"
+    android:layout_height="155dp"
+    android:layout_marginTop="44dp"
+    android:contentDescription="@string/bandie_who_is_a_big_yip"
+    android:onClick="yip"
+    android:soundEffectsEnabled="false"
+    app:layout_constraintEnd_toEndOf="parent"
+    app:layout_constraintStart_toStartOf="parent"
+    app:layout_constraintTop_toTopOf="parent"
+    app:srcCompat="@drawable/bandie" />
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/command_activity.xml

@@ -0,0 +1,295 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+  xmlns:app="http://schemas.android.com/apk/res-auto"
+  xmlns:tools="http://schemas.android.com/tools"
+  android:layout_width="match_parent"
+  android:layout_height="match_parent"
+  tools:context=".CommandActivity">
+
+
+  <ScrollView
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:layout_editor_absoluteX="0dp"
+    tools:layout_editor_absoluteY="0dp">
+
+    <LinearLayout
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      android:orientation="vertical">
+
+      <TextView
+        android:id="@+id/labelLock"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/lock" />
+
+      <ImageButton
+        android:id="@+id/btnLock"
+        android:layout_width="110dp"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="0dp"
+        android:backgroundTint="#246FA8"
+        android:contentDescription="@string/send_lock_command"
+        android:onClick="sendLockCmd"
+        app:srcCompat="@android:drawable/ic_lock_idle_lock" />
+
+      <View
+        android:id="@+id/divider"
+        android:layout_width="match_parent"
+        android:layout_height="10dp"
+        android:background="?android:attr/listDivider" />
+
+      <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="86dp"
+        android:orientation="horizontal">
+
+        <LinearLayout
+          android:layout_width="140dp"
+          android:layout_height="72dp"
+          android:gravity="top"
+          android:orientation="vertical">
+
+          <TextView
+            android:id="@+id/labelShutdown"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="0dp"
+            android:text="@string/shutdown" />
+
+          <ImageButton
+            android:id="@+id/btnShutdown"
+            android:layout_width="110dp"
+            android:layout_height="45dp"
+            android:layout_marginTop="0dp"
+            android:backgroundTint="#734B1A"
+            android:contentDescription="@string/send_shutdown_command"
+            android:onClick="sendShutdownCmd"
+            app:srcCompat="@android:drawable/ic_lock_power_off" />
+
+        </LinearLayout>
+
+        <LinearLayout
+          android:layout_width="match_parent"
+          android:layout_height="wrap_content"
+          android:orientation="vertical">
+
+          <Switch
+            android:id="@+id/swSecShutdown1"
+            android:layout_width="113dp"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="16dp"
+            android:onClick="switchShutdown"
+            android:text="@string/shutdown" />
+
+          <Switch
+            android:id="@+id/swSecShutdown2"
+            android:layout_width="160dp"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="0dp"
+            android:layout_marginTop="0dp"
+            android:onClick="switchShutdown"
+            android:text="@string/shutdown" />
+        </LinearLayout>
+      </LinearLayout>
+
+      <View
+        android:id="@+id/divider2"
+        android:layout_width="match_parent"
+        android:layout_height="10dp"
+        android:background="?android:attr/listDivider" />
+
+      <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="113dp"
+        android:orientation="horizontal">
+
+        <LinearLayout
+          android:layout_width="140dp"
+          android:layout_height="match_parent"
+          android:orientation="vertical">
+
+          <TextView
+            android:id="@+id/labelPanic"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/panic" />
+
+          <ImageButton
+            android:id="@+id/btnPanic"
+            android:layout_width="110dp"
+            android:layout_height="45dp"
+            android:backgroundTint="#880000"
+            android:contentDescription="@string/panic"
+            android:onClick="sendPanicCmd"
+            app:srcCompat="@android:drawable/ic_menu_delete" />
+
+        </LinearLayout>
+
+        <LinearLayout
+          android:layout_width="232dp"
+          android:layout_height="match_parent"
+          android:orientation="vertical">
+
+          <Switch
+            android:id="@+id/swSecPanic1"
+            android:layout_width="113dp"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="20dp"
+            android:onClick="switchPanic"
+            android:text="@string/panic" />
+
+          <Switch
+            android:id="@+id/swSecPanic2"
+            android:layout_width="160dp"
+            android:layout_height="wrap_content"
+            android:onClick="switchPanic"
+            android:text="@string/panic" />
+
+          <Switch
+            android:id="@+id/swSecPanic3"
+            android:layout_width="205dp"
+            android:layout_height="wrap_content"
+            android:onClick="switchPanic"
+            android:text="@string/panic" />
+        </LinearLayout>
+
+      </LinearLayout>
+
+      <View
+        android:id="@+id/divider3"
+        android:layout_width="match_parent"
+        android:layout_height="10dp"
+        android:background="?android:attr/listDivider" />
+
+      <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="85dp"
+        android:orientation="horizontal">
+
+        <LinearLayout
+          android:layout_width="140dp"
+          android:layout_height="match_parent"
+          android:gravity="top"
+          android:orientation="vertical">
+
+          <TextView
+            android:id="@+id/labelInfraShutdown"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/infra_shutdown" />
+
+          <ImageButton
+            android:id="@+id/btnInfraShutdown"
+            android:layout_width="110dp"
+            android:layout_height="45dp"
+            android:backgroundTint="#B36200"
+            android:contentDescription="@string/infra_shutdown"
+            android:onClick="sendInfraShutdownCmd"
+            app:srcCompat="?android:attr/alertDialogIcon" />
+
+        </LinearLayout>
+
+        <LinearLayout
+          android:layout_width="match_parent"
+          android:layout_height="match_parent"
+          android:orientation="vertical">
+
+          <Switch
+            android:id="@+id/swSecInfraShutdown1"
+            android:layout_width="160dp"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="20dp"
+            android:onClick="switchInfraShutdown"
+            android:text="@string/infra_shutdown" />
+
+          <Switch
+            android:id="@+id/swSecInfraShutdown2"
+            android:layout_width="205dp"
+            android:layout_height="wrap_content"
+            android:onClick="switchInfraShutdown"
+            android:text="@string/infra_shutdown" />
+        </LinearLayout>
+      </LinearLayout>
+
+      <View
+        android:id="@+id/divider4"
+        android:layout_width="match_parent"
+        android:layout_height="10dp"
+        android:background="?android:attr/listDivider" />
+
+      <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="horizontal">
+
+        <LinearLayout
+          android:layout_width="140dp"
+          android:layout_height="match_parent"
+          android:orientation="vertical">
+
+          <TextView
+            android:id="@+id/labelInfraPanic"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="@string/infra_panic" />
+
+          <ImageButton
+            android:id="@+id/btnInfraPanic"
+            android:layout_width="110dp"
+            android:layout_height="45dp"
+            android:backgroundTint="#9C0000"
+            android:contentDescription="@string/infra_panic"
+            android:onClick="sendInfraPanicCmd"
+            app:srcCompat="@android:drawable/ic_menu_close_clear_cancel" />
+
+        </LinearLayout>
+
+        <LinearLayout
+          android:layout_width="match_parent"
+          android:layout_height="match_parent"
+          android:orientation="vertical">
+
+          <Switch
+            android:id="@+id/swSecInfraPanic1"
+            android:layout_width="117dp"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="20dp"
+            android:onClick="switchInfraPanic"
+            android:text="@string/infra_panic" />
+
+          <Switch
+            android:id="@+id/swSecInfraPanic2"
+            android:layout_width="159dp"
+            android:layout_height="wrap_content"
+            android:onClick="switchInfraPanic"
+            android:text="@string/infra_panic" />
+
+          <Switch
+            android:id="@+id/swSecInfraPanic3"
+            android:layout_width="206dp"
+            android:layout_height="wrap_content"
+            android:onClick="switchInfraPanic"
+            android:text="@string/infra_panic" />
+        </LinearLayout>
+      </LinearLayout>
+
+
+    </LinearLayout>
+  </ScrollView>
+
+  <com.google.android.material.floatingactionbutton.FloatingActionButton
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:layout_marginStart="24dp"
+    android:layout_marginBottom="24dp"
+    android:clickable="true"
+    android:focusable="true"
+    android:onClick="startSettingsActivity"
+    app:backgroundTint="@color/colorPrimaryDark"
+    app:layout_constraintBottom_toBottomOf="parent"
+    app:layout_constraintStart_toStartOf="parent"
+    app:srcCompat="@android:drawable/ic_menu_manage" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/settings_activity.xml

@@ -0,0 +1,154 @@
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+  xmlns:app="http://schemas.android.com/apk/res-auto"
+  android:layout_width="match_parent"
+  android:layout_height="match_parent">
+
+  <LinearLayout
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical">
+
+    <TextView
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      android:labelFor="@id/textServer"
+      android:text="@string/server"
+      android:textColor="#999" />
+
+    <EditText
+      android:id="@+id/textServer"
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      android:background="?attr/editTextBackground"
+      android:backgroundTint="#999999"
+      android:contentDescription="@string/server"
+      android:ems="10"
+      android:foregroundTint="#FFFFFF"
+      android:importantForAutofill="no"
+      android:inputType="textPersonName"
+      android:singleLine="true"
+      android:textColor="#CCCCCC"
+      android:textColorHint="#444444" />
+
+    <TextView
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      android:labelFor="@id/pwKey"
+      android:text="@string/key"
+      android:textColor="#999" />
+
+    <EditText
+      android:id="@+id/pwKey"
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      android:backgroundTint="#999999"
+      android:contentDescription="@string/some_api_key"
+      android:ems="10"
+      android:foregroundTint="#FFFFFF"
+      android:importantForAutofill="no"
+      android:inputType="textPassword"
+      android:singleLine="true"
+      android:textColor="#CCCCCC"
+      android:textColorHint="#444444" />
+
+    <TextView
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      android:labelFor="@id/pwSecret"
+      android:text="@string/secret"
+      android:textColor="#999" />
+
+    <EditText
+      android:id="@+id/pwSecret"
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      android:backgroundTint="#999999"
+      android:contentDescription="@string/some_api_secret"
+      android:ems="10"
+      android:foregroundTint="#FFFFFF"
+      android:importantForAutofill="no"
+      android:inputType="textPassword"
+      android:singleLine="true"
+      android:textColor="#CCCCCC"
+      android:textColorHint="#444444" />
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+      android:layout_width="match_parent"
+      android:layout_height="122dp">
+
+      <Button
+        android:layout_width="205dp"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="24dp"
+        android:background="#777777"
+        android:onClick="saveServerSettings"
+        android:text="@string/save"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+    <TextView
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      android:labelFor="@id/pwSetPasscode"
+      android:text="@string/passcode" />
+
+    <EditText
+      android:id="@+id/pwSetPasscode"
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      android:ems="10"
+      android:importantForAutofill="no"
+      android:inputType="numberPassword" />
+
+    <TextView
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      android:labelFor="@id/pwSetPasscodeConfirm"
+      android:text="@string/confirm_passcode" />
+
+    <EditText
+      android:id="@+id/pwSetPasscodeConfirm"
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      android:ems="10"
+      android:importantForAutofill="no"
+      android:inputType="numberPassword" />
+
+    <LinearLayout
+      style="?android:attr/buttonBarStyle"
+      android:layout_width="match_parent"
+      android:layout_height="match_parent"
+      android:orientation="horizontal">
+
+      <Button
+        style="?android:attr/buttonBarButtonStyle"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_weight="1"
+        android:onClick="deletePasscode"
+        android:text="@string/delete" />
+
+      <Button
+        style="?android:attr/buttonBarButtonStyle"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_weight="1"
+        android:onClick="savePasscode"
+        android:text="@string/set" />
+
+    </LinearLayout>
+
+    <Space
+      android:layout_width="match_parent"
+      android:layout_height="19dp" />
+
+    <TextView
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      android:text="@string/to_delete_your_passcode_type_in_the_passcode_in_the_first_field_and_press_delete" />
+
+  </LinearLayout>
+</ScrollView>

app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/ic_launcher_background" />
+    <foreground android:drawable="@mipmap/ic_launcher_foreground" />
+</adaptive-icon>

app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/ic_launcher_background" />
+    <foreground android:drawable="@mipmap/ic_launcher_foreground" />
+</adaptive-icon>

app/src/main/res/values/arrays.xml

@@ -0,0 +1,4 @@
+<resources>
+    <!-- Reply Preference -->
+
+</resources>

app/src/main/res/values/colors.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimaryDark">#3700B3</color>
+</resources>

app/src/main/res/values/ic_launcher_background.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="ic_launcher_background">#2B2B2B</color>
+</resources>

app/src/main/res/values/ids.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+</resources>

app/src/main/res/values/strings.xml

@@ -0,0 +1,23 @@
+<resources>
+    <string name="app_name">Yipanic</string>
+    <string name="title_activity_settings">Settings</string>
+    <string name="key">Key</string>
+    <string name="secret">Secret</string>
+    <string name="save">Save</string>
+    <string name="server">Server</string>
+    <string name="some_api_key">Some API key</string>
+    <string name="some_api_secret">Some API secret</string>
+    <string name="send_lock_command">Send lock command</string>
+    <string name="send_shutdown_command">Send shutdown command</string>
+    <string name="bandie_who_is_a_big_yip">Bandie who is a big yip</string>
+    <string name="passcode">Passcode</string>
+    <string name="confirm_passcode">Confirm Passcode</string>
+    <string name="delete">Delete</string>
+    <string name="set">Set</string>
+    <string name="to_delete_your_passcode_type_in_the_passcode_in_the_first_field_and_press_delete">To delete your passcode, type in the passcode in the first field and press delete.</string>
+    <string name="panic">Panic</string>
+    <string name="infra_shutdown">Infra-Shutdown</string>
+    <string name="infra_panic">Infra-Panic</string>
+    <string name="shutdown">Shutdown</string>
+    <string name="lock">Lock</string>
+</resources>

app/src/main/res/values/styles.xml

@@ -0,0 +1,5 @@
+<resources>
+
+    <!-- Base application theme. -->
+
+</resources>