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Code Issues Releases Wiki Activity

Add error handling to OMEMO PEP code

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Log received errors and abort processing
This commit is contained in:
Andreas Straub 2015-08-23 13:23:10 +02:00
parent c0502c2165
commit e1dc7f990d
1 changed files with 134 additions and 119 deletions
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253
src/main/java/eu/siacs/conversations/crypto/axolotl/AxolotlService.java
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@ -307,21 +307,25 @@ public class AxolotlService {
mXmppConnectionService.sendIqPacket(account, packet, new OnIqPacketReceived() { mXmppConnectionService.sendIqPacket(account, packet, new OnIqPacketReceived() {
@Override @Override
public void onIqPacketReceived(Account account, IqPacket packet) { public void onIqPacketReceived(Account account, IqPacket packet) {
Element item = mXmppConnectionService.getIqParser().getItem(packet); if (packet.getType() == IqPacket.TYPE.RESULT) {
Set<Integer> deviceIds = mXmppConnectionService.getIqParser().deviceIds(item); Element item = mXmppConnectionService.getIqParser().getItem(packet);
if (deviceIds == null) { Set<Integer> deviceIds = mXmppConnectionService.getIqParser().deviceIds(item);
deviceIds = new HashSet<Integer>(); if (deviceIds == null) {
} deviceIds = new HashSet<Integer>();
if (!deviceIds.contains(getOwnDeviceId())) { }
deviceIds.add(getOwnDeviceId()); if (!deviceIds.contains(getOwnDeviceId())) {
IqPacket publish = mXmppConnectionService.getIqGenerator().publishDeviceIds(deviceIds); deviceIds.add(getOwnDeviceId());
Log.d(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Own device " + getOwnDeviceId() + " not in PEP devicelist. Publishing: " + publish); IqPacket publish = mXmppConnectionService.getIqGenerator().publishDeviceIds(deviceIds);
mXmppConnectionService.sendIqPacket(account, publish, new OnIqPacketReceived() { Log.d(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Own device " + getOwnDeviceId() + " not in PEP devicelist. Publishing: " + publish);
@Override mXmppConnectionService.sendIqPacket(account, publish, new OnIqPacketReceived() {
public void onIqPacketReceived(Account account, IqPacket packet) { @Override
// TODO: implement this! public void onIqPacketReceived(Account account, IqPacket packet) {
} // TODO: implement this!
}); }
});
}
} else {
Log.d(Config.LOGTAG, getLogprefix(account) + "Error received while publishing device ID:" + packet.findChild("error"));
} }
} }
}); });
@ -332,88 +336,92 @@ public class AxolotlService {
mXmppConnectionService.sendIqPacket(account, packet, new OnIqPacketReceived() { mXmppConnectionService.sendIqPacket(account, packet, new OnIqPacketReceived() {
@Override @Override
public void onIqPacketReceived(Account account, IqPacket packet) { public void onIqPacketReceived(Account account, IqPacket packet) {
PreKeyBundle bundle = mXmppConnectionService.getIqParser().bundle(packet); if (packet.getType() == IqPacket.TYPE.RESULT) {
Map<Integer, ECPublicKey> keys = mXmppConnectionService.getIqParser().preKeyPublics(packet); PreKeyBundle bundle = mXmppConnectionService.getIqParser().bundle(packet);
boolean flush = false; Map<Integer, ECPublicKey> keys = mXmppConnectionService.getIqParser().preKeyPublics(packet);
if (bundle == null) { boolean flush = false;
Log.w(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Received invalid bundle:" + packet); if (bundle == null) {
bundle = new PreKeyBundle(-1, -1, -1, null, -1, null, null, null); Log.w(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Received invalid bundle:" + packet);
flush = true; bundle = new PreKeyBundle(-1, -1, -1, null, -1, null, null, null);
} flush = true;
if (keys == null) { }
Log.w(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Received invalid prekeys:" + packet); if (keys == null) {
} Log.w(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Received invalid prekeys:" + packet);
try {
boolean changed = false;
// Validate IdentityKey
IdentityKeyPair identityKeyPair = axolotlStore.getIdentityKeyPair();
if (flush || !identityKeyPair.getPublicKey().equals(bundle.getIdentityKey())) {
Log.i(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Adding own IdentityKey " + identityKeyPair.getPublicKey() + " to PEP.");
changed = true;
} }
// Validate signedPreKeyRecord + ID
SignedPreKeyRecord signedPreKeyRecord;
int numSignedPreKeys = axolotlStore.loadSignedPreKeys().size();
try { try {
signedPreKeyRecord = axolotlStore.loadSignedPreKey(bundle.getSignedPreKeyId()); boolean changed = false;
if (flush // Validate IdentityKey
|| !bundle.getSignedPreKey().equals(signedPreKeyRecord.getKeyPair().getPublicKey()) IdentityKeyPair identityKeyPair = axolotlStore.getIdentityKeyPair();
|| !Arrays.equals(bundle.getSignedPreKeySignature(), signedPreKeyRecord.getSignature())) { if (flush || !identityKeyPair.getPublicKey().equals(bundle.getIdentityKey())) {
Log.i(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Adding own IdentityKey " + identityKeyPair.getPublicKey() + " to PEP.");
changed = true;
}
// Validate signedPreKeyRecord + ID
SignedPreKeyRecord signedPreKeyRecord;
int numSignedPreKeys = axolotlStore.loadSignedPreKeys().size();
try {
signedPreKeyRecord = axolotlStore.loadSignedPreKey(bundle.getSignedPreKeyId());
if (flush
|| !bundle.getSignedPreKey().equals(signedPreKeyRecord.getKeyPair().getPublicKey())
|| !Arrays.equals(bundle.getSignedPreKeySignature(), signedPreKeyRecord.getSignature())) {
Log.i(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Adding new signedPreKey with ID " + (numSignedPreKeys + 1) + " to PEP.");
signedPreKeyRecord = KeyHelper.generateSignedPreKey(identityKeyPair, numSignedPreKeys + 1);
axolotlStore.storeSignedPreKey(signedPreKeyRecord.getId(), signedPreKeyRecord);
changed = true;
}
} catch (InvalidKeyIdException e) {
Log.i(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Adding new signedPreKey with ID " + (numSignedPreKeys + 1) + " to PEP."); Log.i(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Adding new signedPreKey with ID " + (numSignedPreKeys + 1) + " to PEP.");
signedPreKeyRecord = KeyHelper.generateSignedPreKey(identityKeyPair, numSignedPreKeys + 1); signedPreKeyRecord = KeyHelper.generateSignedPreKey(identityKeyPair, numSignedPreKeys + 1);
axolotlStore.storeSignedPreKey(signedPreKeyRecord.getId(), signedPreKeyRecord); axolotlStore.storeSignedPreKey(signedPreKeyRecord.getId(), signedPreKeyRecord);
changed = true; changed = true;
} }
} catch (InvalidKeyIdException e) {
Log.i(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Adding new signedPreKey with ID " + (numSignedPreKeys + 1) + " to PEP.");
signedPreKeyRecord = KeyHelper.generateSignedPreKey(identityKeyPair, numSignedPreKeys + 1);
axolotlStore.storeSignedPreKey(signedPreKeyRecord.getId(), signedPreKeyRecord);
changed = true;
}
// Validate PreKeys // Validate PreKeys
Set<PreKeyRecord> preKeyRecords = new HashSet<>(); Set<PreKeyRecord> preKeyRecords = new HashSet<>();
if (keys != null) { if (keys != null) {
for (Integer id : keys.keySet()) { for (Integer id : keys.keySet()) {
try { try {
PreKeyRecord preKeyRecord = axolotlStore.loadPreKey(id); PreKeyRecord preKeyRecord = axolotlStore.loadPreKey(id);
if (preKeyRecord.getKeyPair().getPublicKey().equals(keys.get(id))) { if (preKeyRecord.getKeyPair().getPublicKey().equals(keys.get(id))) {
preKeyRecords.add(preKeyRecord); preKeyRecords.add(preKeyRecord);
}
} catch (InvalidKeyIdException ignored) {
} }
} catch (InvalidKeyIdException ignored) {
} }
} }
} int newKeys = NUM_KEYS_TO_PUBLISH - preKeyRecords.size();
int newKeys = NUM_KEYS_TO_PUBLISH - preKeyRecords.size(); if (newKeys > 0) {
if (newKeys > 0) { List<PreKeyRecord> newRecords = KeyHelper.generatePreKeys(
List<PreKeyRecord> newRecords = KeyHelper.generatePreKeys( axolotlStore.getCurrentPreKeyId() + 1, newKeys);
axolotlStore.getCurrentPreKeyId() + 1, newKeys); preKeyRecords.addAll(newRecords);
preKeyRecords.addAll(newRecords); for (PreKeyRecord record : newRecords) {
for (PreKeyRecord record : newRecords) { axolotlStore.storePreKey(record.getId(), record);
axolotlStore.storePreKey(record.getId(), record);
}
changed = true;
Log.i(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Adding " + newKeys + " new preKeys to PEP.");
}
if (changed) {
IqPacket publish = mXmppConnectionService.getIqGenerator().publishBundles(
signedPreKeyRecord, axolotlStore.getIdentityKeyPair().getPublicKey(),
preKeyRecords, getOwnDeviceId());
Log.d(Config.LOGTAG, AxolotlService.getLogprefix(account) + ": Bundle " + getOwnDeviceId() + " in PEP not current. Publishing: " + publish);
mXmppConnectionService.sendIqPacket(account, publish, new OnIqPacketReceived() {
@Override
public void onIqPacketReceived(Account account, IqPacket packet) {
// TODO: implement this!
Log.d(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Published bundle, got: " + packet);
} }
}); changed = true;
Log.i(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Adding " + newKeys + " new preKeys to PEP.");
}
if (changed) {
IqPacket publish = mXmppConnectionService.getIqGenerator().publishBundles(
signedPreKeyRecord, axolotlStore.getIdentityKeyPair().getPublicKey(),
preKeyRecords, getOwnDeviceId());
Log.d(Config.LOGTAG, AxolotlService.getLogprefix(account) + ": Bundle " + getOwnDeviceId() + " in PEP not current. Publishing: " + publish);
mXmppConnectionService.sendIqPacket(account, publish, new OnIqPacketReceived() {
@Override
public void onIqPacketReceived(Account account, IqPacket packet) {
// TODO: implement this!
Log.d(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Published bundle, got: " + packet);
}
});
}
} catch (InvalidKeyException e) {
Log.e(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Failed to publish bundle " + getOwnDeviceId() + ", reason: " + e.getMessage());
return;
} }
} catch (InvalidKeyException e) { } else {
Log.e(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Failed to publish bundle " + getOwnDeviceId() + ", reason: " + e.getMessage()); Log.d(Config.LOGTAG, getLogprefix(account) + "Error received while publishing Bundle:" + packet.findChild("error"));
return;
} }
} }
}); });
@ -453,45 +461,52 @@ public class AxolotlService {
@Override @Override
public void onIqPacketReceived(Account account, IqPacket packet) { public void onIqPacketReceived(Account account, IqPacket packet) {
Log.d(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Received preKey IQ packet, processing..."); if (packet.getType() == IqPacket.TYPE.RESULT) {
final IqParser parser = mXmppConnectionService.getIqParser(); Log.d(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Received preKey IQ packet, processing...");
final List<PreKeyBundle> preKeyBundleList = parser.preKeys(packet); final IqParser parser = mXmppConnectionService.getIqParser();
final PreKeyBundle bundle = parser.bundle(packet); final List<PreKeyBundle> preKeyBundleList = parser.preKeys(packet);
if (preKeyBundleList.isEmpty() || bundle == null) { final PreKeyBundle bundle = parser.bundle(packet);
Log.e(Config.LOGTAG, AxolotlService.getLogprefix(account) + "preKey IQ packet invalid: " + packet); if (preKeyBundleList.isEmpty() || bundle == null) {
Log.e(Config.LOGTAG, AxolotlService.getLogprefix(account) + "preKey IQ packet invalid: " + packet);
fetchStatusMap.put(address, FetchStatus.ERROR);
finish();
return;
}
Random random = new Random();
final PreKeyBundle preKey = preKeyBundleList.get(random.nextInt(preKeyBundleList.size()));
if (preKey == null) {
//should never happen
fetchStatusMap.put(address, FetchStatus.ERROR);
finish();
return;
}
final PreKeyBundle preKeyBundle = new PreKeyBundle(0, address.getDeviceId(),
preKey.getPreKeyId(), preKey.getPreKey(),
bundle.getSignedPreKeyId(), bundle.getSignedPreKey(),
bundle.getSignedPreKeySignature(), bundle.getIdentityKey());
axolotlStore.saveIdentity(address.getName(), bundle.getIdentityKey());
try {
SessionBuilder builder = new SessionBuilder(axolotlStore, address);
builder.process(preKeyBundle);
XmppAxolotlSession session = new XmppAxolotlSession(account, axolotlStore, address, bundle.getIdentityKey().getFingerprint().replaceAll("\\s", ""));
sessions.put(address, session);
fetchStatusMap.put(address, FetchStatus.SUCCESS);
} catch (UntrustedIdentityException | InvalidKeyException e) {
Log.e(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Error building session for " + address + ": "
+ e.getClass().getName() + ", " + e.getMessage());
fetchStatusMap.put(address, FetchStatus.ERROR);
}
finish();
} else {
fetchStatusMap.put(address, FetchStatus.ERROR); fetchStatusMap.put(address, FetchStatus.ERROR);
Log.d(Config.LOGTAG, getLogprefix(account) + "Error received while building session:" + packet.findChild("error"));
finish(); finish();
return; return;
} }
Random random = new Random();
final PreKeyBundle preKey = preKeyBundleList.get(random.nextInt(preKeyBundleList.size()));
if (preKey == null) {
//should never happen
fetchStatusMap.put(address, FetchStatus.ERROR);
finish();
return;
}
final PreKeyBundle preKeyBundle = new PreKeyBundle(0, address.getDeviceId(),
preKey.getPreKeyId(), preKey.getPreKey(),
bundle.getSignedPreKeyId(), bundle.getSignedPreKey(),
bundle.getSignedPreKeySignature(), bundle.getIdentityKey());
axolotlStore.saveIdentity(address.getName(), bundle.getIdentityKey());
try {
SessionBuilder builder = new SessionBuilder(axolotlStore, address);
builder.process(preKeyBundle);
XmppAxolotlSession session = new XmppAxolotlSession(account, axolotlStore, address, bundle.getIdentityKey().getFingerprint().replaceAll("\\s", ""));
sessions.put(address, session);
fetchStatusMap.put(address, FetchStatus.SUCCESS);
} catch (UntrustedIdentityException | InvalidKeyException e) {
Log.e(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Error building session for " + address + ": "
+ e.getClass().getName() + ", " + e.getMessage());
fetchStatusMap.put(address, FetchStatus.ERROR);
}
finish();
} }
}); });
} catch (InvalidJidException e) { } catch (InvalidJidException e) {