Primer paso de la investigacion. Se aportan el .apk, las carpetas con el apk extraido y el apk descompilado. El archivo API_DOCUMENTATION.md es un archivo donde se anotaran los descubrimientos del funcionamiento de la API, y los .py son scripts para probar la funcionalidad de la API con los métodos que vayamos encontrando. Finalmente, los archivos .js son scripts de Frida para extraer informacion de la APP durante la ejecucion.
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package com.google.firebase.heartbeatinfo;
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import android.content.Context;
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import android.content.SharedPreferences;
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import java.time.ZoneOffset;
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import java.time.format.DateTimeFormatter;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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/* JADX INFO: Access modifiers changed from: package-private */
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/* loaded from: classes3.dex */
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public class HeartBeatInfoStorage {
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private static final String GLOBAL = "fire-global";
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private static final String HEARTBEAT_PREFERENCES_NAME = "FirebaseHeartBeat";
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private static final int HEART_BEAT_COUNT_LIMIT = 30;
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private static final String HEART_BEAT_COUNT_TAG = "fire-count";
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private static final String LAST_STORED_DATE = "last-used-date";
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private static final String PREFERENCES_NAME = "FirebaseAppHeartBeat";
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private static HeartBeatInfoStorage instance;
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private final SharedPreferences firebaseSharedPreferences;
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public HeartBeatInfoStorage(Context context, String str) {
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this.firebaseSharedPreferences = context.getSharedPreferences(HEARTBEAT_PREFERENCES_NAME + str, 0);
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}
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private synchronized void cleanUpStoredHeartBeats() {
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try {
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long j4 = this.firebaseSharedPreferences.getLong(HEART_BEAT_COUNT_TAG, 0L);
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String str = "";
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String str2 = null;
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for (Map.Entry<String, ?> entry : this.firebaseSharedPreferences.getAll().entrySet()) {
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if (entry.getValue() instanceof Set) {
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for (String str3 : (Set) entry.getValue()) {
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if (str2 != null && str2.compareTo(str3) <= 0) {
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}
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str = entry.getKey();
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str2 = str3;
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}
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}
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}
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HashSet hashSet = new HashSet(this.firebaseSharedPreferences.getStringSet(str, new HashSet()));
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hashSet.remove(str2);
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this.firebaseSharedPreferences.edit().putStringSet(str, hashSet).putLong(HEART_BEAT_COUNT_TAG, j4 - 1).commit();
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} catch (Throwable th) {
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throw th;
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}
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}
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private synchronized String getFormattedDate(long j4) {
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return new Date(j4).toInstant().atOffset(ZoneOffset.UTC).toLocalDateTime().format(DateTimeFormatter.ISO_LOCAL_DATE);
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}
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private synchronized String getStoredUserAgentString(String str) {
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for (Map.Entry<String, ?> entry : this.firebaseSharedPreferences.getAll().entrySet()) {
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if (entry.getValue() instanceof Set) {
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Iterator it = ((Set) entry.getValue()).iterator();
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while (it.hasNext()) {
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if (str.equals((String) it.next())) {
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return entry.getKey();
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}
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}
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}
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}
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return null;
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}
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private synchronized void removeStoredDate(String str) {
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try {
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String storedUserAgentString = getStoredUserAgentString(str);
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if (storedUserAgentString == null) {
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return;
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}
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HashSet hashSet = new HashSet(this.firebaseSharedPreferences.getStringSet(storedUserAgentString, new HashSet()));
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hashSet.remove(str);
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if (hashSet.isEmpty()) {
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this.firebaseSharedPreferences.edit().remove(storedUserAgentString).commit();
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} else {
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this.firebaseSharedPreferences.edit().putStringSet(storedUserAgentString, hashSet).commit();
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}
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} catch (Throwable th) {
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throw th;
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}
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}
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private synchronized void updateStoredUserAgent(String str, String str2) {
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removeStoredDate(str2);
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HashSet hashSet = new HashSet(this.firebaseSharedPreferences.getStringSet(str, new HashSet()));
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hashSet.add(str2);
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this.firebaseSharedPreferences.edit().putStringSet(str, hashSet).commit();
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}
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public synchronized void deleteAllHeartBeats() {
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try {
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SharedPreferences.Editor edit = this.firebaseSharedPreferences.edit();
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int i = 0;
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for (Map.Entry<String, ?> entry : this.firebaseSharedPreferences.getAll().entrySet()) {
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if (entry.getValue() instanceof Set) {
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Set set = (Set) entry.getValue();
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String formattedDate = getFormattedDate(System.currentTimeMillis());
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String key = entry.getKey();
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if (set.contains(formattedDate)) {
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HashSet hashSet = new HashSet();
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hashSet.add(formattedDate);
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i++;
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edit.putStringSet(key, hashSet);
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} else {
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edit.remove(key);
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}
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}
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}
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if (i == 0) {
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edit.remove(HEART_BEAT_COUNT_TAG);
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} else {
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edit.putLong(HEART_BEAT_COUNT_TAG, i);
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}
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edit.commit();
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} catch (Throwable th) {
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throw th;
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}
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}
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public synchronized List<HeartBeatResult> getAllHeartBeats() {
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ArrayList arrayList;
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try {
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arrayList = new ArrayList();
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for (Map.Entry<String, ?> entry : this.firebaseSharedPreferences.getAll().entrySet()) {
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if (entry.getValue() instanceof Set) {
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HashSet hashSet = new HashSet((Set) entry.getValue());
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hashSet.remove(getFormattedDate(System.currentTimeMillis()));
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if (!hashSet.isEmpty()) {
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arrayList.add(HeartBeatResult.create(entry.getKey(), new ArrayList(hashSet)));
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}
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}
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}
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updateGlobalHeartBeat(System.currentTimeMillis());
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} catch (Throwable th) {
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throw th;
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}
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return arrayList;
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}
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public int getHeartBeatCount() {
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return (int) this.firebaseSharedPreferences.getLong(HEART_BEAT_COUNT_TAG, 0L);
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}
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public synchronized long getLastGlobalHeartBeat() {
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return this.firebaseSharedPreferences.getLong(GLOBAL, -1L);
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}
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public synchronized boolean isSameDateUtc(long j4, long j5) {
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return getFormattedDate(j4).equals(getFormattedDate(j5));
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}
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public synchronized void postHeartBeatCleanUp() {
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String formattedDate = getFormattedDate(System.currentTimeMillis());
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this.firebaseSharedPreferences.edit().putString(LAST_STORED_DATE, formattedDate).commit();
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removeStoredDate(formattedDate);
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}
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public synchronized boolean shouldSendGlobalHeartBeat(long j4) {
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return shouldSendSdkHeartBeat(GLOBAL, j4);
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}
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public synchronized boolean shouldSendSdkHeartBeat(String str, long j4) {
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if (!this.firebaseSharedPreferences.contains(str)) {
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this.firebaseSharedPreferences.edit().putLong(str, j4).commit();
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return true;
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}
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if (isSameDateUtc(this.firebaseSharedPreferences.getLong(str, -1L), j4)) {
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return false;
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}
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this.firebaseSharedPreferences.edit().putLong(str, j4).commit();
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return true;
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}
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public synchronized void storeHeartBeat(long j4, String str) {
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String formattedDate = getFormattedDate(j4);
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if (this.firebaseSharedPreferences.getString(LAST_STORED_DATE, "").equals(formattedDate)) {
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String storedUserAgentString = getStoredUserAgentString(formattedDate);
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if (storedUserAgentString == null) {
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return;
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}
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if (storedUserAgentString.equals(str)) {
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return;
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}
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updateStoredUserAgent(str, formattedDate);
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return;
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}
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long j5 = this.firebaseSharedPreferences.getLong(HEART_BEAT_COUNT_TAG, 0L);
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if (j5 + 1 == 30) {
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cleanUpStoredHeartBeats();
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j5 = this.firebaseSharedPreferences.getLong(HEART_BEAT_COUNT_TAG, 0L);
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}
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HashSet hashSet = new HashSet(this.firebaseSharedPreferences.getStringSet(str, new HashSet()));
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hashSet.add(formattedDate);
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this.firebaseSharedPreferences.edit().putStringSet(str, hashSet).putLong(HEART_BEAT_COUNT_TAG, j5 + 1).putString(LAST_STORED_DATE, formattedDate).commit();
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}
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public synchronized void updateGlobalHeartBeat(long j4) {
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this.firebaseSharedPreferences.edit().putLong(GLOBAL, j4).commit();
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}
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public HeartBeatInfoStorage(SharedPreferences sharedPreferences) {
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this.firebaseSharedPreferences = sharedPreferences;
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}
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}
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