From 8520cb558a3f4ea04978656360dee9ce260745d4 Mon Sep 17 00:00:00 2001 From: Moxie Marlinspike Date: Sun, 5 Aug 2012 12:41:31 -0700 Subject: [PATCH] Sanity check for system service restarts. --- .../service/ApplicationMigrationService.java | 2 + .../securesms/service/KeyCachingService.java | 2 + .../securesms/service/SendReceiveService.java | 91 ++++++++++--------- 3 files changed, 50 insertions(+), 45 deletions(-) diff --git a/src/org/thoughtcrime/securesms/service/ApplicationMigrationService.java b/src/org/thoughtcrime/securesms/service/ApplicationMigrationService.java index f3c9b7ab74..b9e3f8e49e 100644 --- a/src/org/thoughtcrime/securesms/service/ApplicationMigrationService.java +++ b/src/org/thoughtcrime/securesms/service/ApplicationMigrationService.java @@ -34,6 +34,8 @@ public class ApplicationMigrationService extends Service @Override public void onStart(Intent intent, int startId) { + if (intent == null) return; + if (intent.getAction() != null && intent.getAction().equals(MIGRATE_DATABASE)) { handleDatabaseMigration((MasterSecret)intent.getParcelableExtra("master_secret")); } diff --git a/src/org/thoughtcrime/securesms/service/KeyCachingService.java b/src/org/thoughtcrime/securesms/service/KeyCachingService.java index 068b945be4..f721db062e 100644 --- a/src/org/thoughtcrime/securesms/service/KeyCachingService.java +++ b/src/org/thoughtcrime/securesms/service/KeyCachingService.java @@ -75,6 +75,8 @@ public class KeyCachingService extends Service { @Override public void onStart(Intent intent, int startId) { + if (intent == null) return; + if (intent.getAction() != null && intent.getAction().equals(CLEAR_KEY_ACTION)) handleClearKey(); else if (intent.getAction() != null && intent.getAction().equals(ACTIVITY_START_EVENT)) diff --git a/src/org/thoughtcrime/securesms/service/SendReceiveService.java b/src/org/thoughtcrime/securesms/service/SendReceiveService.java index baee31128a..6a0c912ba6 100644 --- a/src/org/thoughtcrime/securesms/service/SendReceiveService.java +++ b/src/org/thoughtcrime/securesms/service/SendReceiveService.java @@ -1,6 +1,6 @@ -/** +/** * Copyright (C) 2011 Whisper Systems - * + * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or @@ -10,20 +10,12 @@ * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. - * + * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ package org.thoughtcrime.securesms.service; -import java.util.Iterator; -import java.util.LinkedList; -import java.util.List; - -import org.thoughtcrime.securesms.crypto.MasterSecret; -import org.thoughtcrime.securesms.database.CanonicalSessionMigrator; -import org.thoughtcrime.securesms.util.WorkerThread; - import android.app.Service; import android.content.BroadcastReceiver; import android.content.ComponentName; @@ -33,14 +25,21 @@ import android.content.IntentFilter; import android.content.ServiceConnection; import android.os.Handler; import android.os.IBinder; -import android.os.Looper; import android.os.Message; import android.util.Log; import android.widget.Toast; +import org.thoughtcrime.securesms.crypto.MasterSecret; +import org.thoughtcrime.securesms.database.CanonicalSessionMigrator; +import org.thoughtcrime.securesms.util.WorkerThread; + +import java.util.Iterator; +import java.util.LinkedList; +import java.util.List; + /** * Services that handles sending/receiving of SMS/MMS. - * + * * @author Moxie Marlinspike */ @@ -54,27 +53,27 @@ public class SendReceiveService extends Service { public static final String RECEIVE_MMS_ACTION = "org.thoughtcrime.securesms.SendReceiveService.RECEIVE_MMS_ACTION"; public static final String DOWNLOAD_MMS_ACTION = "org.thoughtcrime.securesms.SendReceiveService.DOWNLOAD_MMS_ACTION"; public static final String DOWNLOAD_MMS_CONNECTIVITY_ACTION = "org.thoughtcrime.securesms.SendReceiveService.DOWNLOAD_MMS_CONNECTIVITY_ACTION"; - + private static final int SEND_SMS = 0; private static final int RECEIVE_SMS = 1; private static final int SEND_MMS = 2; private static final int RECEIVE_MMS = 3; private static final int DOWNLOAD_MMS = 4; - + private ToastHandler toastHandler; - + private SmsReceiver smsReceiver; private SmsSender smsSender; private MmsReceiver mmsReceiver; private MmsSender mmsSender; private MmsDownloader mmsDownloader; - + private MasterSecret masterSecret; private NewKeyReceiver receiver; private List workQueue; private List pendingSecretList; private Thread workerThread; - + @Override public void onCreate() { initializeHandlers(); @@ -83,9 +82,11 @@ public class SendReceiveService extends Service { initializeWorkQueue(); initializeMasterSecret(); } - + @Override public void onStart(Intent intent, int startId) { + if (intent == null) return; + if (intent.getAction().equals(SEND_SMS_ACTION)) scheduleSecretRequiredIntent(SEND_SMS, intent); else if (intent.getAction().equals(RECEIVE_SMS_ACTION)) @@ -98,7 +99,7 @@ public class SendReceiveService extends Service { scheduleIntent(RECEIVE_MMS, intent); else if (intent.getAction().equals(DOWNLOAD_MMS_ACTION) || intent.getAction().equals(DOWNLOAD_MMS_CONNECTIVITY_ACTION)) scheduleSecretRequiredIntent(DOWNLOAD_MMS, intent); - else + else Log.w("SendReceiveService", "Received intent with unknown action: " + intent.getAction()); } @@ -106,11 +107,11 @@ public class SendReceiveService extends Service { public IBinder onBind(Intent intent) { return null; } - + private void initializeHandlers() { toastHandler = new ToastHandler(); } - + private void initializeProcessors() { smsReceiver = new SmsReceiver(this); smsSender = new SmsSender(this); @@ -118,15 +119,15 @@ public class SendReceiveService extends Service { mmsSender = new MmsSender(this); mmsDownloader = new MmsDownloader(this, toastHandler); } - + private void initializeWorkQueue() { pendingSecretList = new LinkedList(); workQueue = new LinkedList(); workerThread = new WorkerThread(workQueue, "SendReceveService-WorkerThread"); workerThread.start(); - } - + } + private void initializeMasterSecret() { receiver = new NewKeyReceiver(); IntentFilter filter = new IntentFilter(KeyCachingService.NEW_KEY_EVENT); @@ -135,18 +136,18 @@ public class SendReceiveService extends Service { Intent bindIntent = new Intent(this, KeyCachingService.class); bindService(bindIntent, serviceConnection, Context.BIND_AUTO_CREATE); } - + private void initializeWithMasterSecret(MasterSecret masterSecret) { Log.w("SendReceiveService", "SendReceive service got master secret: " + masterSecret); - + if (masterSecret != null) { synchronized (workQueue) { this.masterSecret = masterSecret; - + Iterator iterator = pendingSecretList.iterator(); - while (iterator.hasNext()) + while (iterator.hasNext()) workQueue.add(iterator.next()); - + workQueue.notifyAll(); } } @@ -155,50 +156,50 @@ public class SendReceiveService extends Service { private void initializeAddressCanonicalization() { CanonicalSessionMigrator.migrateSessions(this); } - + private void scheduleIntent(int what, Intent intent) { Runnable work = new SendReceiveWorkItem(intent, what); - + synchronized (workQueue) { workQueue.add(work); workQueue.notifyAll(); } } - + private void scheduleSecretRequiredIntent(int what, Intent intent) { Runnable work = new SendReceiveWorkItem(intent, what); - + synchronized (workQueue) { if (masterSecret != null) { workQueue.add(work); workQueue.notifyAll(); - } else { - pendingSecretList.add(work); + } else { + pendingSecretList.add(work); } } } - + private class SendReceiveWorkItem implements Runnable { - + private final Intent intent; private final int what; - + public SendReceiveWorkItem(Intent intent, int what) { this.intent = intent; this.what = what; } - + public void run() { switch (what) { case RECEIVE_SMS: smsReceiver.process(masterSecret, intent); return; case SEND_SMS: smsSender.process(masterSecret, intent); return; case RECEIVE_MMS: mmsReceiver.process(masterSecret, intent); return; case SEND_MMS: mmsSender.process(masterSecret, intent); return; - case DOWNLOAD_MMS: mmsDownloader.process(masterSecret, intent); return; + case DOWNLOAD_MMS: mmsDownloader.process(masterSecret, intent); return; } } } - + public class ToastHandler extends Handler { public void makeToast(String toast) { Message message = this.obtainMessage(); @@ -218,12 +219,12 @@ public class SendReceiveService extends Service { initializeWithMasterSecret(masterSecret); - SendReceiveService.this.unbindService(this); + SendReceiveService.this.unbindService(this); } public void onServiceDisconnected(ComponentName name) {} }; - + private class NewKeyReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { @@ -231,5 +232,5 @@ public class SendReceiveService extends Service { initializeWithMasterSecret((MasterSecret)intent.getParcelableExtra("master_secret")); } }; - + }