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Fix for NPE on empty MMS PDU

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This commit is contained in:
Moxie Marlinspike 2013-01-01 12:54:12 -08:00
parent 62cad05acb
commit b805c4db4e
1 changed files with 20 additions and 22 deletions
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42
src/org/thoughtcrime/securesms/service/MmsDownloader.java
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@ -71,20 +71,20 @@ public class MmsDownloader extends MmscProcessor {
getApnInformation()); getApnInformation());
RetrieveConf retrieved = (RetrieveConf)new PduParser(pdu).parse(); RetrieveConf retrieved = (RetrieveConf)new PduParser(pdu).parse();
if (retrieved == null)
throw new IOException("Bad retrieved PDU");
for (int i=0;i<retrieved.getBody().getPartsNum();i++) { for (int i=0;i<retrieved.getBody().getPartsNum();i++) {
Log.w("MmsDownloader", "Sent MMS part of content-type: " + new String(retrieved.getBody().getPart(i).getContentType())); Log.w("MmsDownloader", "Sent MMS part of content-type: " +
new String(retrieved.getBody().getPart(i).getContentType()));
} }
if (retrieved == null)
throw new IOException("Bad retrieved PDU");
if (retrieved.getSubject() != null && WirePrefix.isEncryptedMmsSubject(retrieved.getSubject().getString())) { if (retrieved.getSubject() != null && WirePrefix.isEncryptedMmsSubject(retrieved.getSubject().getString())) {
long messageId = mmsDatabase.insertSecureMessageReceived(retrieved, item.getContentLocation(), item.getThreadId()); long messageId = mmsDatabase.insertSecureMessageReceived(retrieved, item.getContentLocation(), item.getThreadId());
if (item.getMasterSecret() != null) if (item.getMasterSecret() != null)
DecryptingQueue.scheduleDecryption(context, item.getMasterSecret(), messageId, item.getThreadId(), retrieved); DecryptingQueue.scheduleDecryption(context, item.getMasterSecret(), messageId, item.getThreadId(), retrieved);
} else { } else {
mmsDatabase.insertMessageReceived(retrieved, item.getContentLocation(), item.getThreadId()); mmsDatabase.insertMessageReceived(retrieved, item.getContentLocation(), item.getThreadId());
} }
mmsDatabase.delete(item.getMessageId()); mmsDatabase.delete(item.getMessageId());
@ -93,7 +93,7 @@ public class MmsDownloader extends MmscProcessor {
// MmsSendHelper.sendMms(context, new PduComposer(context, notifyResponse).make()); // MmsSendHelper.sendMms(context, new PduComposer(context, notifyResponse).make());
if (this.pendingMessages.isEmpty()) if (this.pendingMessages.isEmpty())
finishConnectivity(); finishConnectivity();
} catch (IOException e) { } catch (IOException e) {
DatabaseFactory.getMmsDatabase(context).markDownloadState(item.getMessageId(), MmsDatabase.Types.DOWNLOAD_SOFT_FAILURE); DatabaseFactory.getMmsDatabase(context).markDownloadState(item.getMessageId(), MmsDatabase.Types.DOWNLOAD_SOFT_FAILURE);
@ -109,10 +109,10 @@ public class MmsDownloader extends MmscProcessor {
protected void handleConnectivityChange() { protected void handleConnectivityChange() {
if (!isConnected()) { if (!isConnected()) {
if (!isConnectivityPossible() && !pendingMessages.isEmpty()) { if (!isConnectivityPossible() && !pendingMessages.isEmpty()) {
DatabaseFactory.getMmsDatabase(context).markDownloadState(pendingMessages.remove().getMessageId(), MmsDatabase.Types.DOWNLOAD_NO_CONNECTIVITY); DatabaseFactory.getMmsDatabase(context).markDownloadState(pendingMessages.remove().getMessageId(), MmsDatabase.Types.DOWNLOAD_NO_CONNECTIVITY);
toastHandler.makeToast("No connectivity available for MMS download, try again later..."); toastHandler.makeToast("No connectivity available for MMS download, try again later...");
Log.w("MmsDownloadService", "Unable to download MMS, please try again later."); Log.w("MmsDownloadService", "Unable to download MMS, please try again later.");
finishConnectivity(); finishConnectivity();
} }
return; return;
@ -125,10 +125,10 @@ public class MmsDownloader extends MmscProcessor {
public void process(MasterSecret masterSecret, Intent intent) { public void process(MasterSecret masterSecret, Intent intent) {
if (intent.getAction().equals(SendReceiveService.DOWNLOAD_MMS_ACTION)) { if (intent.getAction().equals(SendReceiveService.DOWNLOAD_MMS_ACTION)) {
DownloadItem item = new DownloadItem(intent.getLongExtra("message_id", -1), DownloadItem item = new DownloadItem(intent.getLongExtra("message_id", -1),
intent.getLongExtra("thread_id", -1), intent.getLongExtra("thread_id", -1),
intent.getStringExtra("content_location"), intent.getStringExtra("content_location"),
intent.getByteArrayExtra("transaction_id"), intent.getByteArrayExtra("transaction_id"),
masterSecret); masterSecret);
handleDownloadMms(item); handleDownloadMms(item);
} else if (intent.getAction().equals(SendReceiveService.DOWNLOAD_MMS_CONNECTIVITY_ACTION)) { } else if (intent.getAction().equals(SendReceiveService.DOWNLOAD_MMS_CONNECTIVITY_ACTION)) {
@ -174,9 +174,7 @@ public class MmsDownloader extends MmscProcessor {
} }
@Override @Override
protected String getConnectivityAction() { protected String getConnectivityAction() {
return SendReceiveService.DOWNLOAD_MMS_CONNECTIVITY_ACTION; return SendReceiveService.DOWNLOAD_MMS_CONNECTIVITY_ACTION;
} }
} }