diff options
Diffstat (limited to 'src/main/java/eu/siacs')
| -rw-r--r-- | src/main/java/eu/siacs/conversations/crypto/axolotl/AxolotlService.java | 70 | ||||
| -rw-r--r-- | src/main/java/eu/siacs/conversations/persistance/DatabaseBackend.java | 85 |
2 files changed, 108 insertions, 47 deletions
diff --git a/src/main/java/eu/siacs/conversations/crypto/axolotl/AxolotlService.java b/src/main/java/eu/siacs/conversations/crypto/axolotl/AxolotlService.java index 5c4b34a4..d788ed06 100644 --- a/src/main/java/eu/siacs/conversations/crypto/axolotl/AxolotlService.java +++ b/src/main/java/eu/siacs/conversations/crypto/axolotl/AxolotlService.java @@ -68,12 +68,14 @@ public class AxolotlService { public static final String PREKEY_TABLENAME = "prekeys"; public static final String SIGNED_PREKEY_TABLENAME = "signed_prekeys"; public static final String SESSION_TABLENAME = "sessions"; + public static final String IDENTITIES_TABLENAME = "identities"; public static final String ACCOUNT = "account"; public static final String DEVICE_ID = "device_id"; public static final String ID = "id"; public static final String KEY = "key"; public static final String NAME = "name"; public static final String TRUSTED = "trusted"; + public static final String OWN = "ownkey"; public static final String JSONKEY_IDENTITY_KEY_PAIR = "axolotl_key"; public static final String JSONKEY_REGISTRATION_ID = "axolotl_reg_id"; @@ -82,7 +84,7 @@ public class AxolotlService { private final Account account; private final XmppConnectionService mXmppConnectionService; - private final IdentityKeyPair identityKeyPair; + private IdentityKeyPair identityKeyPair; private final int localRegistrationId; private int currentPreKeyId = 0; @@ -104,10 +106,9 @@ public class AxolotlService { public SQLiteAxolotlStore(Account account, XmppConnectionService service) { this.account = account; this.mXmppConnectionService = service; - this.identityKeyPair = loadIdentityKeyPair(); this.localRegistrationId = loadRegistrationId(); this.currentPreKeyId = loadCurrentPreKeyId(); - for( SignedPreKeyRecord record:loadSignedPreKeys()) { + for (SignedPreKeyRecord record : loadSignedPreKeys()) { Log.d(Config.LOGTAG, "Got Axolotl signed prekey record:" + record.getId()); } } @@ -121,26 +122,17 @@ public class AxolotlService { // -------------------------------------- private IdentityKeyPair loadIdentityKeyPair() { - String serializedKey = this.account.getKey(JSONKEY_IDENTITY_KEY_PAIR); - IdentityKeyPair ownKey; - if( serializedKey != null ) { - try { - ownKey = new IdentityKeyPair(Base64.decode(serializedKey,Base64.DEFAULT)); - return ownKey; - } catch (InvalidKeyException e) { - Log.d(Config.LOGTAG, "Invalid key stored for account " + account.getJid() + ": " + e.getMessage()); -// return null; - } - } //else { - Log.d(Config.LOGTAG, "Could not retrieve axolotl key for account " + account.getJid()); + String ownName = account.getJid().toBareJid().toString(); + IdentityKeyPair ownKey = mXmppConnectionService.databaseBackend.loadOwnIdentityKeyPair(account, + ownName); + + if (ownKey != null) { + return ownKey; + } else { + Log.d(Config.LOGTAG, "Could not retrieve axolotl key for account " + ownName); ownKey = generateIdentityKeyPair(); - boolean success = this.account.setKey(JSONKEY_IDENTITY_KEY_PAIR, Base64.encodeToString(ownKey.serialize(), Base64.DEFAULT)); - if(success) { - mXmppConnectionService.databaseBackend.updateAccount(account); - } else { - Log.e(Config.LOGTAG, "Failed to write new key to the database!"); - } - //} + mXmppConnectionService.databaseBackend.storeOwnIdentityKeyPair(account, ownName, ownKey); + } return ownKey; } @@ -152,8 +144,8 @@ public class AxolotlService { } else { Log.d(Config.LOGTAG, "Could not retrieve axolotl registration id for account " + account.getJid()); reg_id = generateRegistrationId(); - boolean success = this.account.setKey(JSONKEY_REGISTRATION_ID,""+reg_id); - if(success) { + boolean success = this.account.setKey(JSONKEY_REGISTRATION_ID, Integer.toString(reg_id)); + if (success) { mXmppConnectionService.databaseBackend.updateAccount(account); } else { Log.e(Config.LOGTAG, "Failed to write new key to the database!"); @@ -182,6 +174,9 @@ public class AxolotlService { */ @Override public IdentityKeyPair getIdentityKeyPair() { + if(identityKeyPair == null) { + identityKeyPair = loadIdentityKeyPair(); + } return identityKeyPair; } @@ -208,16 +203,8 @@ public class AxolotlService { */ @Override public void saveIdentity(String name, IdentityKey identityKey) { - try { - Jid contactJid = Jid.fromString(name); - Conversation conversation = this.mXmppConnectionService.find(this.account, contactJid); - if (conversation != null) { - conversation.getContact().addAxolotlIdentityKey(identityKey); - mXmppConnectionService.updateConversationUi(); - mXmppConnectionService.syncRosterToDisk(conversation.getAccount()); - } - } catch (final InvalidJidException e) { - Log.e(Config.LOGTAG, "Failed to save identityKey for contact name " + name + ": " + e.toString()); + if(!mXmppConnectionService.databaseBackend.loadIdentityKeys(account, name).contains(identityKey)) { + mXmppConnectionService.databaseBackend.storeIdentityKey(account, name, identityKey); } } @@ -237,19 +224,8 @@ public class AxolotlService { */ @Override public boolean isTrustedIdentity(String name, IdentityKey identityKey) { - try { - Jid contactJid = Jid.fromString(name); - Conversation conversation = this.mXmppConnectionService.find(this.account, contactJid); - if (conversation != null) { - List<IdentityKey> trustedKeys = conversation.getContact().getAxolotlIdentityKeys(); - return trustedKeys.isEmpty() || trustedKeys.contains(identityKey); - } else { - return false; - } - } catch (final InvalidJidException e) { - Log.e(Config.LOGTAG, "Failed to save identityKey for contact name" + name + ": " + e.toString()); - return false; - } + Set<IdentityKey> trustedKeys = mXmppConnectionService.databaseBackend.loadIdentityKeys(account, name); + return trustedKeys.isEmpty() || trustedKeys.contains(identityKey); } // -------------------------------------- diff --git a/src/main/java/eu/siacs/conversations/persistance/DatabaseBackend.java b/src/main/java/eu/siacs/conversations/persistance/DatabaseBackend.java index 966734ba..c70ffad2 100644 --- a/src/main/java/eu/siacs/conversations/persistance/DatabaseBackend.java +++ b/src/main/java/eu/siacs/conversations/persistance/DatabaseBackend.java @@ -10,13 +10,18 @@ import android.util.Base64; import android.util.Log; import org.whispersystems.libaxolotl.AxolotlAddress; +import org.whispersystems.libaxolotl.IdentityKey; +import org.whispersystems.libaxolotl.IdentityKeyPair; +import org.whispersystems.libaxolotl.InvalidKeyException; import org.whispersystems.libaxolotl.state.PreKeyRecord; import org.whispersystems.libaxolotl.state.SessionRecord; import org.whispersystems.libaxolotl.state.SignedPreKeyRecord; import java.io.IOException; import java.util.ArrayList; +import java.util.HashSet; import java.util.List; +import java.util.Set; import java.util.concurrent.CopyOnWriteArrayList; import eu.siacs.conversations.Config; @@ -87,6 +92,16 @@ public class DatabaseBackend extends SQLiteOpenHelper { + ") ON CONFLICT REPLACE" +");"; + private static String CREATE_IDENTITIES_STATEMENT = "CREATE TABLE " + + AxolotlService.SQLiteAxolotlStore.IDENTITIES_TABLENAME + "(" + + AxolotlService.SQLiteAxolotlStore.ACCOUNT + " TEXT, " + + AxolotlService.SQLiteAxolotlStore.NAME + " TEXT, " + + AxolotlService.SQLiteAxolotlStore.OWN + " INTEGER, " + + AxolotlService.SQLiteAxolotlStore.KEY + " TEXT, FOREIGN KEY(" + + AxolotlService.SQLiteAxolotlStore.ACCOUNT + + ") REFERENCES " + Account.TABLENAME + "(" + Account.UUID + ") ON DELETE CASCADE " + +");"; + private DatabaseBackend(Context context) { super(context, DATABASE_NAME, null, DATABASE_VERSION); } @@ -126,6 +141,7 @@ public class DatabaseBackend extends SQLiteOpenHelper { db.execSQL(CREATE_SESSIONS_STATEMENT); db.execSQL(CREATE_PREKEYS_STATEMENT); db.execSQL(CREATE_SIGNED_PREKEYS_STATEMENT); + db.execSQL(CREATE_IDENTITIES_STATEMENT); } @Override @@ -273,6 +289,8 @@ public class DatabaseBackend extends SQLiteOpenHelper { db.execSQL(CREATE_PREKEYS_STATEMENT); db.execSQL("DROP TABLE IF EXISTS " + AxolotlService.SQLiteAxolotlStore.SIGNED_PREKEY_TABLENAME); db.execSQL(CREATE_SIGNED_PREKEYS_STATEMENT); + db.execSQL("DROP TABLE IF EXISTS " + AxolotlService.SQLiteAxolotlStore.IDENTITIES_TABLENAME); + db.execSQL(CREATE_IDENTITIES_STATEMENT); } } @@ -783,4 +801,71 @@ public class DatabaseBackend extends SQLiteOpenHelper { + AxolotlService.SQLiteAxolotlStore.ID + "=?", args); } + + private Cursor getIdentityKeyCursor(Account account, String name, boolean own) { + final SQLiteDatabase db = this.getReadableDatabase(); + String[] columns = {AxolotlService.SQLiteAxolotlStore.KEY}; + String[] selectionArgs = {account.getUuid(), + name, + own?"1":"0"}; + Cursor cursor = db.query(AxolotlService.SQLiteAxolotlStore.IDENTITIES_TABLENAME, + columns, + AxolotlService.SQLiteAxolotlStore.ACCOUNT + " = ? AND " + + AxolotlService.SQLiteAxolotlStore.NAME + " = ? AND " + + AxolotlService.SQLiteAxolotlStore.OWN + " = ? ", + selectionArgs, + null, null, null); + + return cursor; + } + + public IdentityKeyPair loadOwnIdentityKeyPair(Account account, String name) { + IdentityKeyPair identityKeyPair = null; + Cursor cursor = getIdentityKeyCursor(account, name, true); + if(cursor.getCount() != 0) { + cursor.moveToFirst(); + try { + identityKeyPair = new IdentityKeyPair(Base64.decode(cursor.getString(cursor.getColumnIndex(AxolotlService.SQLiteAxolotlStore.KEY)),Base64.DEFAULT)); + } catch (InvalidKeyException e) { + Log.d(Config.LOGTAG, "Encountered invalid IdentityKey in database for account" + account.getJid().toBareJid() + ", address: " + name); + } + } + cursor.close(); + + return identityKeyPair; + } + + public Set<IdentityKey> loadIdentityKeys(Account account, String name) { + Set<IdentityKey> identityKeys = new HashSet<>(); + Cursor cursor = getIdentityKeyCursor(account, name, false); + + while(cursor.moveToNext()) { + try { + identityKeys.add(new IdentityKey(Base64.decode(cursor.getString(cursor.getColumnIndex(AxolotlService.SQLiteAxolotlStore.KEY)),Base64.DEFAULT),0)); + } catch (InvalidKeyException e) { + Log.d(Config.LOGTAG, "Encountered invalid IdentityKey in database for account"+account.getJid().toBareJid()+", address: "+name); + } + } + cursor.close(); + + return identityKeys; + } + + private void storeIdentityKey(Account account, String name, boolean own, String base64Serialized) { + SQLiteDatabase db = this.getWritableDatabase(); + ContentValues values = new ContentValues(); + values.put(AxolotlService.SQLiteAxolotlStore.ACCOUNT, account.getUuid()); + values.put(AxolotlService.SQLiteAxolotlStore.NAME, name); + values.put(AxolotlService.SQLiteAxolotlStore.OWN, own?1:0); + values.put(AxolotlService.SQLiteAxolotlStore.KEY, base64Serialized); + db.insert(AxolotlService.SQLiteAxolotlStore.IDENTITIES_TABLENAME, null, values); + } + + public void storeIdentityKey(Account account, String name, IdentityKey identityKey) { + storeIdentityKey(account, name, false, Base64.encodeToString(identityKey.serialize(), Base64.DEFAULT)); + } + + public void storeOwnIdentityKeyPair(Account account, String name, IdentityKeyPair identityKeyPair) { + storeIdentityKey(account, name, true, Base64.encodeToString(identityKeyPair.serialize(),Base64.DEFAULT)); + } } |