/*
* Copyright (c) 2020. BoostTag E.I.R.L. Romell D.Z.
* All rights reserved
* porfile.romellfudi.com
*/
package com.romellfudi.ussdlibrary;
import android.accessibilityservice.AccessibilityService;
import android.content.ClipData;
import android.content.ClipboardManager;
import android.content.Context;
import android.os.Bundle;
import android.util.Log;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityNodeInfo;
import java.util.ArrayList;
import java.util.List;
/**
* AccessibilityService for ussd windows on Android mobile Telcom
*
* @author Romell Dominguez
* @version 1.1.c 27/09/2018
* @since 1.0.a
*/
public class USSDService extends AccessibilityService {
private static String TAG = USSDService.class.getSimpleName();
private static AccessibilityEvent event;
/**
* Catch widget by Accessibility, when is showing at mobile display
*
* @param event AccessibilityEvent
*/
@Override
public void onAccessibilityEvent(AccessibilityEvent event) {
this.event = event;
Log.d(TAG, "onAccessibilityEvent");
Log.d(TAG, String.format(
"onAccessibilityEvent: [type] %s [class] %s [package] %s [time] %s [text] %s",
event.getEventType(), event.getClassName(), event.getPackageName(),
event.getEventTime(), event.getText()));
if (USSDController.instance == null || !USSDController.instance.isRunning) {
return;
}
if (LoginView(event) && notInputText(event)) {
// first view or logView, do nothing, pass / FIRST MESSAGE
clickOnButton(event, 0);
USSDController.instance.isRunning = false;
USSDController.instance.callbackInvoke.over(event.getText().get(0).toString());
} else if (problemView(event) || LoginView(event)) {
// deal down
clickOnButton(event, 1);
USSDController.instance.callbackInvoke.over(event.getText().get(0).toString());
} else if (isUSSDWidget(event)) {
// ready for work
String response = event.getText().get(0).toString();
if (response.contains("\n")) {
response = response.substring(response.indexOf('\n') + 1);
}
if (notInputText(event)) {
// not more input panels / LAST MESSAGE
// sent 'OK' button
clickOnButton(event, 0);
USSDController.instance.isRunning = false;
USSDController.instance.callbackInvoke.over(response);
} else {
// sent option 1
if (USSDController.instance.callbackMessage == null)
USSDController.instance.callbackInvoke.responseInvoke(response);
else {
USSDController.instance.callbackMessage.responseMessage(response);
USSDController.instance.callbackMessage = null;
}
}
}
}
/**
* Send whatever you want via USSD
*
* @param text any string
*/
public static void send(String text) {
setTextIntoField(event, text);
clickOnButton(event, 1);
}
/**
* Cancel USSD
*
*/
public static void cancel() {
clickOnButton(event, 0);
}
/**
* set text into input text at USSD widget
*
* @param event AccessibilityEvent
* @param data Any String
*/
private static void setTextIntoField(AccessibilityEvent event, String data) {
USSDController ussdController = USSDController.instance;
Bundle arguments = new Bundle();
arguments.putCharSequence(
AccessibilityNodeInfo.ACTION_ARGUMENT_SET_TEXT_CHARSEQUENCE, data);
for (AccessibilityNodeInfo leaf : getLeaves(event)) {
if (leaf.getClassName().equals("android.widget.EditText")
&& !leaf.performAction(AccessibilityNodeInfo.ACTION_SET_TEXT, arguments)) {
ClipboardManager clipboardManager = ((ClipboardManager) ussdController.context
.getSystemService(Context.CLIPBOARD_SERVICE));
if (clipboardManager != null) {
clipboardManager.setPrimaryClip(ClipData.newPlainText("text", data));
}
leaf.performAction(AccessibilityNodeInfo.ACTION_PASTE);
}
}
}
/**
* Method evaluate if USSD widget has input text
*
* @param event AccessibilityEvent
* @return boolean has or not input text
*/
protected static boolean notInputText(AccessibilityEvent event) {
boolean flag = true;
for (AccessibilityNodeInfo leaf : getLeaves(event)) {
if (leaf.getClassName().equals("android.widget.EditText")) flag = false;
}
return flag;
}
/**
* The AccessibilityEvent is instance of USSD Widget class
*
* @param event AccessibilityEvent
* @return boolean AccessibilityEvent is USSD
*/
private boolean isUSSDWidget(AccessibilityEvent event) {
return (event.getClassName().equals("amigo.app.AmigoAlertDialog")
|| event.getClassName().equals("android.app.AlertDialog"));
}
/**
* The View has a login message into USSD Widget
*
* @param event AccessibilityEvent
* @return boolean USSD Widget has login message
*/
private boolean LoginView(AccessibilityEvent event) {
return isUSSDWidget(event)
&& USSDController.instance.map.get(USSDController.KEY_LOGIN)
.contains(event.getText().get(0).toString());
}
/**
* The View has a problem message into USSD Widget
*
* @param event AccessibilityEvent
* @return boolean USSD Widget has problem message
*/
protected boolean problemView(AccessibilityEvent event) {
return isUSSDWidget(event)
&& USSDController.instance.map.get(USSDController.KEY_ERROR)
.contains(event.getText().get(0).toString());
}
/**
* click a button using the index
*
* @param event AccessibilityEvent
* @param index button's index
*/
protected static void clickOnButton(AccessibilityEvent event, int index) {
int count = -1;
for (AccessibilityNodeInfo leaf : getLeaves(event)) {
if (leaf.getClassName().toString().toLowerCase().contains("button")) {
count++;
if (count == index) {
leaf.performAction(AccessibilityNodeInfo.ACTION_CLICK);
}
}
}
}
private static List<AccessibilityNodeInfo> getLeaves(AccessibilityEvent event) {
List<AccessibilityNodeInfo> leaves = new ArrayList<>();
if (event.getSource() != null) {
getLeaves(leaves, event.getSource());
}
return leaves;
}
private static void getLeaves(List<AccessibilityNodeInfo> leaves, AccessibilityNodeInfo node) {
if (node.getChildCount() == 0) {
leaves.add(node);
return;
}
for (int i = 0; i < node.getChildCount(); i++) {
getLeaves(leaves, node.getChild(i));
}
}
/**
* Active when SO interrupt the application
*/
@Override
public void onInterrupt() {
Log.d(TAG, "onInterrupt");
}
/**
* Configure accessibility server from Android Operative System
*/
@Override
protected void onServiceConnected() {
super.onServiceConnected();
Log.d(TAG, "onServiceConnected");
}
}
