sum7/Conversations
sum7
/
Conversations
1
1
Fork 0
Code Issues Pull Requests Releases Wiki Activity

CryptoNext persistance layer mockup 

Initial sketch of the peripheral storage infrastructure for the new
axolotl-based encryption scheme.
This commit is contained in:
Andreas Straub 2015-05-29 11:17:26 +02:00
parent bef731a3c8
commit f16b77d382
7 changed files with 844 additions and 67 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
build.gradle
View File

@ -36,6 +36,7 @@ dependencies {
compile 'de.measite.minidns:minidns:0.1.3'
compile 'de.timroes.android:EnhancedListView:0.3.4'
compile 'me.leolin:ShortcutBadger:1.1.1@aar'
compile 'org.whispersystems:axolotl-android:1.3.4'
}
android {

440
src/main/java/eu/siacs/conversations/crypto/axolotl/AxolotlService.java Normal file
View File

@ -0,0 +1,440 @@
package eu.siacs.conversations.crypto.axolotl;
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.InvalidKeyIdException;
import org.whispersystems.libaxolotl.ecc.Curve;
import org.whispersystems.libaxolotl.ecc.ECKeyPair;
import org.whispersystems.libaxolotl.state.AxolotlStore;
import org.whispersystems.libaxolotl.state.PreKeyRecord;
import org.whispersystems.libaxolotl.state.SessionRecord;
import org.whispersystems.libaxolotl.state.SignedPreKeyRecord;
import org.whispersystems.libaxolotl.util.KeyHelper;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import eu.siacs.conversations.Config;
import eu.siacs.conversations.entities.Account;
import eu.siacs.conversations.entities.Conversation;
import eu.siacs.conversations.entities.Message;
import eu.siacs.conversations.services.XmppConnectionService;
import eu.siacs.conversations.xmpp.jid.InvalidJidException;
import eu.siacs.conversations.xmpp.jid.Jid;
public class AxolotlService {
private Account account;
private XmppConnectionService mXmppConnectionService;
private SQLiteAxolotlStore axolotlStore;
private Map<Jid,XmppAxolotlSession> sessions;
public static class SQLiteAxolotlStore implements AxolotlStore {
public static final String PREKEY_TABLENAME = "prekeys";
public static final String SIGNED_PREKEY_TABLENAME = "signed_prekeys";
public static final String SESSION_TABLENAME = "signed_prekeys";
public static final String NAME = "name";
public static final String DEVICE_ID = "device_id";
public static final String ID = "id";
public static final String KEY = "key";
public static final String ACCOUNT = "account";
public static final String JSONKEY_IDENTITY_KEY_PAIR = "axolotl_key";
public static final String JSONKEY_REGISTRATION_ID = "axolotl_reg_id";
private final Account account;
private final XmppConnectionService mXmppConnectionService;
private final IdentityKeyPair identityKeyPair;
private final int localRegistrationId;
private static IdentityKeyPair generateIdentityKeyPair() {
Log.d(Config.LOGTAG, "Generating axolotl IdentityKeyPair...");
ECKeyPair identityKeyPairKeys = Curve.generateKeyPair();
IdentityKeyPair ownKey = new IdentityKeyPair(new IdentityKey(identityKeyPairKeys.getPublicKey()),
identityKeyPairKeys.getPrivateKey());
return ownKey;
}
private static int generateRegistrationId() {
Log.d(Config.LOGTAG, "Generating axolotl registration ID...");
int reg_id = KeyHelper.generateRegistrationId(false);
return reg_id;
}
public SQLiteAxolotlStore(Account account, XmppConnectionService service) {
this.account = account;
this.mXmppConnectionService = service;
this.identityKeyPair = loadIdentityKeyPair();
this.localRegistrationId = loadRegistrationId();
}
// --------------------------------------
// IdentityKeyStore
// --------------------------------------
private IdentityKeyPair loadIdentityKeyPair() {
String serializedKey = this.account.getKey(JSONKEY_IDENTITY_KEY_PAIR);
IdentityKeyPair ownKey;
if( serializedKey != null ) {
try {
ownKey = new IdentityKeyPair(serializedKey.getBytes());
} 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());
ownKey = generateIdentityKeyPair();
boolean success = this.account.setKey(JSONKEY_IDENTITY_KEY_PAIR, new String(ownKey.serialize()));
if(success) {
mXmppConnectionService.databaseBackend.updateAccount(account);
} else {
Log.e(Config.LOGTAG, "Failed to write new key to the database!");
}
}
return ownKey;
}
private int loadRegistrationId() {
String regIdString = this.account.getKey(JSONKEY_REGISTRATION_ID);
int reg_id;
if (regIdString != null) {
reg_id = Integer.valueOf(regIdString);
} 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) {
mXmppConnectionService.databaseBackend.updateAccount(account);
} else {
Log.e(Config.LOGTAG, "Failed to write new key to the database!");
}
}
return reg_id;
}
/**
* Get the local client's identity key pair.
*
* @return The local client's persistent identity key pair.
*/
@Override
public IdentityKeyPair getIdentityKeyPair() {
return identityKeyPair;
}
/**
* Return the local client's registration ID.
* <p/>
* Clients should maintain a registration ID, a random number
* between 1 and 16380 that's generated once at install time.
*
* @return the local client's registration ID.
*/
@Override
public int getLocalRegistrationId() {
return localRegistrationId;
}
/**
* Save a remote client's identity key
* <p/>
* Store a remote client's identity key as trusted.
*
* @param name The name of the remote client.
* @param identityKey The remote client's identity key.
*/
@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, false);
mXmppConnectionService.updateConversationUi();
mXmppConnectionService.syncRosterToDisk(conversation.getAccount());
}
} catch (final InvalidJidException e) {
Log.e(Config.LOGTAG, "Failed to save identityKey for contact name " + name + ": " + e.toString());
}
}
/**
* Verify a remote client's identity key.
* <p/>
* Determine whether a remote client's identity is trusted. Convention is
* that the TextSecure protocol is 'trust on first use.' This means that
* an identity key is considered 'trusted' if there is no entry for the recipient
* in the local store, or if it matches the saved key for a recipient in the local
* store. Only if it mismatches an entry in the local store is it considered
* 'untrusted.'
*
* @param name The name of the remote client.
* @param identityKey The identity key to verify.
* @return true if trusted, false if untrusted.
*/
@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().getTrustedAxolotlIdentityKeys();
return 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;
}
}
// --------------------------------------
// SessionStore
// --------------------------------------
/**
* Returns a copy of the {@link SessionRecord} corresponding to the recipientId + deviceId tuple,
* or a new SessionRecord if one does not currently exist.
* <p/>
* It is important that implementations return a copy of the current durable information. The
* returned SessionRecord may be modified, but those changes should not have an effect on the
* durable session state (what is returned by subsequent calls to this method) without the
* store method being called here first.
*
* @param address The name and device ID of the remote client.
* @return a copy of the SessionRecord corresponding to the recipientId + deviceId tuple, or
* a new SessionRecord if one does not currently exist.
*/
@Override
public SessionRecord loadSession(AxolotlAddress address) {
SessionRecord session = mXmppConnectionService.databaseBackend.loadSession(this.account, address);
return (session!=null)?session:new SessionRecord();
}
/**
* Returns all known devices with active sessions for a recipient
*
* @param name the name of the client.
* @return all known sub-devices with active sessions.
*/
@Override
public List<Integer> getSubDeviceSessions(String name) {
return mXmppConnectionService.databaseBackend.getSubDeviceSessions(account,
new AxolotlAddress(name,0));
}
/**
* Commit to storage the {@link SessionRecord} for a given recipientId + deviceId tuple.
*
* @param address the address of the remote client.
* @param record the current SessionRecord for the remote client.
*/
@Override
public void storeSession(AxolotlAddress address, SessionRecord record) {
mXmppConnectionService.databaseBackend.storeSession(account, address, record);
}
/**
* Determine whether there is a committed {@link SessionRecord} for a recipientId + deviceId tuple.
*
* @param address the address of the remote client.
* @return true if a {@link SessionRecord} exists, false otherwise.
*/
@Override
public boolean containsSession(AxolotlAddress address) {
return mXmppConnectionService.databaseBackend.containsSession(account, address);
}
/**
* Remove a {@link SessionRecord} for a recipientId + deviceId tuple.
*
* @param address the address of the remote client.
*/
@Override
public void deleteSession(AxolotlAddress address) {
mXmppConnectionService.databaseBackend.deleteSession(account, address);
}
/**
* Remove the {@link SessionRecord}s corresponding to all devices of a recipientId.
*
* @param name the name of the remote client.
*/
@Override
public void deleteAllSessions(String name) {
mXmppConnectionService.databaseBackend.deleteAllSessions(account,
new AxolotlAddress(name,0));
}
// --------------------------------------
// PreKeyStore
// --------------------------------------
/**
* Load a local PreKeyRecord.
*
* @param preKeyId the ID of the local PreKeyRecord.
* @return the corresponding PreKeyRecord.
* @throws InvalidKeyIdException when there is no corresponding PreKeyRecord.
*/
@Override
public PreKeyRecord loadPreKey(int preKeyId) throws InvalidKeyIdException {
PreKeyRecord record = mXmppConnectionService.databaseBackend.loadPreKey(account, preKeyId);
if(record == null) {
throw new InvalidKeyIdException("No such PreKeyRecord!");
}
return record;
}
/**
* Store a local PreKeyRecord.
*
* @param preKeyId the ID of the PreKeyRecord to store.
* @param record the PreKeyRecord.
*/
@Override
public void storePreKey(int preKeyId, PreKeyRecord record) {
mXmppConnectionService.databaseBackend.storePreKey(account, record);
}
/**
* @param preKeyId A PreKeyRecord ID.
* @return true if the store has a record for the preKeyId, otherwise false.
*/
@Override
public boolean containsPreKey(int preKeyId) {
return mXmppConnectionService.databaseBackend.containsPreKey(account, preKeyId);
}
/**
* Delete a PreKeyRecord from local storage.
*
* @param preKeyId The ID of the PreKeyRecord to remove.
*/
@Override
public void removePreKey(int preKeyId) {
mXmppConnectionService.databaseBackend.deletePreKey(account, preKeyId);
}
// --------------------------------------
// SignedPreKeyStore
// --------------------------------------
/**
* Load a local SignedPreKeyRecord.
*
* @param signedPreKeyId the ID of the local SignedPreKeyRecord.
* @return the corresponding SignedPreKeyRecord.
* @throws InvalidKeyIdException when there is no corresponding SignedPreKeyRecord.
*/
@Override
public SignedPreKeyRecord loadSignedPreKey(int signedPreKeyId) throws InvalidKeyIdException {
SignedPreKeyRecord record = mXmppConnectionService.databaseBackend.loadSignedPreKey(account, signedPreKeyId);
if(record == null) {
throw new InvalidKeyIdException("No such PreKeyRecord!");
}
return record;
}
/**
* Load all local SignedPreKeyRecords.
*
* @return All stored SignedPreKeyRecords.
*/
@Override
public List<SignedPreKeyRecord> loadSignedPreKeys() {
return mXmppConnectionService.databaseBackend.loadSignedPreKeys(account);
}
/**
* Store a local SignedPreKeyRecord.
*
* @param signedPreKeyId the ID of the SignedPreKeyRecord to store.
* @param record the SignedPreKeyRecord.
*/
@Override
public void storeSignedPreKey(int signedPreKeyId, SignedPreKeyRecord record) {
mXmppConnectionService.databaseBackend.storeSignedPreKey(account, record);
}
/**
* @param signedPreKeyId A SignedPreKeyRecord ID.
* @return true if the store has a record for the signedPreKeyId, otherwise false.
*/
@Override
public boolean containsSignedPreKey(int signedPreKeyId) {
return mXmppConnectionService.databaseBackend.containsSignedPreKey(account, signedPreKeyId);
}
/**
* Delete a SignedPreKeyRecord from local storage.
*
* @param signedPreKeyId The ID of the SignedPreKeyRecord to remove.
*/
@Override
public void removeSignedPreKey(int signedPreKeyId) {
mXmppConnectionService.databaseBackend.deleteSignedPreKey(account, signedPreKeyId);
}
}
private static class XmppAxolotlSession {
private List<Message> untrustedMessages;
private AxolotlStore axolotlStore;
public XmppAxolotlSession(SQLiteAxolotlStore axolotlStore) {
this.untrustedMessages = new ArrayList<>();
this.axolotlStore = axolotlStore;
}
public void trust() {
for (Message message : this.untrustedMessages) {
message.trust();
}
this.untrustedMessages = null;
}
public boolean isTrusted() {
return (this.untrustedMessages == null);
}
public String processReceiving(XmppAxolotlMessage incomingMessage) {
return null;
}
public XmppAxolotlMessage processSending(String outgoingMessage) {
return null;
}
}
public AxolotlService(Account account, XmppConnectionService connectionService) {
this.mXmppConnectionService = connectionService;
this.account = account;
this.axolotlStore = new SQLiteAxolotlStore(this.account, this.mXmppConnectionService);
this.sessions = new HashMap<>();
}
public void trustSession(Jid counterpart) {
XmppAxolotlSession session = sessions.get(counterpart);
if(session != null) {
session.trust();
}
}
public boolean isTrustedSession(Jid counterpart) {
XmppAxolotlSession session = sessions.get(counterpart);
return session != null && session.isTrusted();
}
}

4
src/main/java/eu/siacs/conversations/crypto/axolotl/XmppAxolotlMessage.java Normal file
View File

@ -0,0 +1,4 @@
package eu.siacs.conversations.crypto.axolotl;
public class XmppAxolotlMessage {
}

4
src/main/java/eu/siacs/conversations/entities/Account.java
View File

@ -254,6 +254,10 @@ public class Account extends AbstractEntity {
return keys;
}
public String getKey(final String name) {
return this.keys.optString(name, null);
}
public boolean setKey(final String keyName, final String keyValue) {
try {
this.keys.put(keyName, keyValue);

58
src/main/java/eu/siacs/conversations/entities/Contact.java
View File

@ -2,15 +2,19 @@ package eu.siacs.conversations.entities;
import android.content.ContentValues;
import android.database.Cursor;
import android.util.Log;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.whispersystems.libaxolotl.IdentityKey;
import org.whispersystems.libaxolotl.InvalidKeyException;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import eu.siacs.conversations.Config;
import eu.siacs.conversations.utils.UIHelper;
import eu.siacs.conversations.xml.Element;
import eu.siacs.conversations.xmpp.jid.InvalidJidException;
@ -183,6 +187,7 @@ public class Contact implements ListItem, Blockable {
}
public ContentValues getContentValues() {
synchronized (this.keys) {
final ContentValues values = new ContentValues();
values.put(ACCOUNT, accountUuid);
values.put(SYSTEMNAME, systemName);
@ -198,6 +203,7 @@ public class Contact implements ListItem, Blockable {
values.put(GROUPS, groups.toString());
return values;
}
}
public int getSubscription() {
return this.subscription;
@ -281,6 +287,7 @@ public class Contact implements ListItem, Blockable {
}
public ArrayList<String> getOtrFingerprints() {
synchronized (this.keys) {
final ArrayList<String> fingerprints = new ArrayList<String>();
try {
if (this.keys.has("otr_fingerprints")) {
@ -297,8 +304,9 @@ public class Contact implements ListItem, Blockable {
}
return fingerprints;
}
}
public boolean addOtrFingerprint(String print) {
synchronized (this.keys) {
if (getOtrFingerprints().contains(print)) {
return false;
}
@ -306,7 +314,6 @@ public class Contact implements ListItem, Blockable {
JSONArray fingerprints;
if (!this.keys.has("otr_fingerprints")) {
fingerprints = new JSONArray();
} else {
fingerprints = this.keys.getJSONArray("otr_fingerprints");
}
@ -317,8 +324,10 @@ public class Contact implements ListItem, Blockable {
return false;
}
}
}
public long getPgpKeyId() {
synchronized (this.keys) {
if (this.keys.has("pgp_keyid")) {
try {
return this.keys.getLong("pgp_keyid");
@ -329,14 +338,57 @@ public class Contact implements ListItem, Blockable {
return 0;
}
}
}
public void setPgpKeyId(long keyId) {
synchronized (this.keys) {
try {
this.keys.put("pgp_keyid", keyId);
} catch (final JSONException ignored) {
}
}
}
public List<IdentityKey> getTrustedAxolotlIdentityKeys() {
synchronized (this.keys) {
JSONArray serializedKeyItems = this.keys.optJSONArray("axolotl_identity_key");
List<IdentityKey> identityKeys = new ArrayList<>();
if(serializedKeyItems != null) {
for(int i = 0; i<serializedKeyItems.length();++i) {
try {
String serializedKeyItem = serializedKeyItems.getString(i);
IdentityKey identityKey = new IdentityKey(serializedKeyItem.getBytes(), 0);
identityKeys.add(identityKey);
} catch (InvalidKeyException e) {
Log.e(Config.LOGTAG, "Invalid axolotl identity key encountered at" + this.getJid() + ": " + e.getMessage());
} catch (JSONException e) {
Log.e(Config.LOGTAG, "Error retrieving axolotl identity key at" + this.getJid() + ": " + e.getMessage());
}
}
}
return identityKeys;
}
}
public boolean addAxolotlIdentityKey(IdentityKey identityKey, boolean trusted) {
synchronized (this.keys) {
JSONArray keysList;
try {
keysList = this.keys.getJSONArray("axolotl_identity_key");
} catch (JSONException e) {
keysList = new JSONArray();
}
keysList.put(new String(identityKey.serialize()));
try {
this.keys.put("axolotl_identity_key", keysList);
} catch (JSONException e) {
Log.e(Config.LOGTAG, "Error adding Identity Key to Contact " + this.getJid() + ": " + e.getMessage());
return false;
}
}
return true;
}
public void setOption(int option) {
this.subscription |= 1 << option;
@ -441,6 +493,7 @@ public class Contact implements ListItem, Blockable {
}
public boolean deleteOtrFingerprint(String fingerprint) {
synchronized (this.keys) {
boolean success = false;
try {
if (this.keys.has("otr_fingerprints")) {
@ -461,6 +514,7 @@ public class Contact implements ListItem, Blockable {
return false;
}
}
}
public boolean trusted() {
return getOption(Options.FROM) && getOption(Options.TO);

13
src/main/java/eu/siacs/conversations/entities/Message.java
View File

@ -65,6 +65,7 @@ public class Message extends AbstractEntity {
protected int encryption;
protected int status;
protected int type;
private boolean isTrusted = true;
protected String relativeFilePath;
protected boolean read = true;
protected String remoteMsgId = null;
@ -653,4 +654,16 @@ public class Message extends AbstractEntity {
public int width = 0;
public int height = 0;
}
public void trust() {
this.isTrusted = true;
}
public void distrust() {
this.isTrusted = false;
}
public boolean isTrusted() {
return this.isTrusted;
}
}

261
src/main/java/eu/siacs/conversations/persistance/DatabaseBackend.java
View File

@ -1,10 +1,12 @@
package eu.siacs.conversations.persistance;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
import eu.siacs.conversations.Config;
import eu.siacs.conversations.crypto.axolotl.AxolotlService;
import eu.siacs.conversations.entities.Account;
import eu.siacs.conversations.entities.Contact;
import eu.siacs.conversations.entities.Conversation;
@ -13,6 +15,7 @@ import eu.siacs.conversations.entities.Roster;
import eu.siacs.conversations.xmpp.jid.InvalidJidException;
import eu.siacs.conversations.xmpp.jid.Jid;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteCantOpenDatabaseException;
@ -20,6 +23,11 @@ import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;
import org.whispersystems.libaxolotl.AxolotlAddress;
import org.whispersystems.libaxolotl.state.PreKeyRecord;
import org.whispersystems.libaxolotl.state.SessionRecord;
import org.whispersystems.libaxolotl.state.SignedPreKeyRecord;
public class DatabaseBackend extends SQLiteOpenHelper {
private static DatabaseBackend instance = null;
@ -39,6 +47,40 @@ public class DatabaseBackend extends SQLiteOpenHelper {
+ ") ON DELETE CASCADE, UNIQUE(" + Contact.ACCOUNT + ", "
+ Contact.JID + ") ON CONFLICT REPLACE);";
private static String CREATE_PREKEYS_STATEMENT = "CREATE TABLE "
+ AxolotlService.SQLiteAxolotlStore.PREKEY_TABLENAME + "("
+ AxolotlService.SQLiteAxolotlStore.ID + " INTEGER, "
+ AxolotlService.SQLiteAxolotlStore.KEY + "TEXT, FOREIGN KEY("
+ AxolotlService.SQLiteAxolotlStore.ACCOUNT
+ ") REFERENCES " + Account.TABLENAME + "(" + Account.UUID + ") ON DELETE CASCADE, "
+ "UNIQUE( " + AxolotlService.SQLiteAxolotlStore.ACCOUNT + ", "
+ AxolotlService.SQLiteAxolotlStore.ID
+ ") ON CONFLICT REPLACE"
+");";
private static String CREATE_SIGNED_PREKEYS_STATEMENT = "CREATE TABLE "
+ AxolotlService.SQLiteAxolotlStore.SIGNED_PREKEY_TABLENAME + "("
+ AxolotlService.SQLiteAxolotlStore.ID + " INTEGER, "
+ AxolotlService.SQLiteAxolotlStore.KEY + "TEXT, FOREIGN KEY("
+ AxolotlService.SQLiteAxolotlStore.ACCOUNT
+ ") REFERENCES " + Account.TABLENAME + "(" + Account.UUID + ") ON DELETE CASCADE, "
+ "UNIQUE( " + AxolotlService.SQLiteAxolotlStore.ACCOUNT + ", "
+ AxolotlService.SQLiteAxolotlStore.ID
+ ") ON CONFLICT REPLACE"+
");";
private static String CREATE_SESSIONS_STATEMENT = "CREATE TABLE "
+ AxolotlService.SQLiteAxolotlStore.SESSION_TABLENAME + "("
+ AxolotlService.SQLiteAxolotlStore.NAME + " TEXT, "
+ AxolotlService.SQLiteAxolotlStore.DEVICE_ID+ " INTEGER, "
+ AxolotlService.SQLiteAxolotlStore.KEY + "TEXT, FOREIGN KEY("
+ AxolotlService.SQLiteAxolotlStore.ACCOUNT
+ ") REFERENCES " + Account.TABLENAME + "(" + Account.UUID + ") ON DELETE CASCADE, "
+ "UNIQUE( " + AxolotlService.SQLiteAxolotlStore.ACCOUNT + ", "
+ AxolotlService.SQLiteAxolotlStore.NAME
+ ") ON CONFLICT REPLACE"
+");";
private DatabaseBackend(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
@ -481,4 +523,223 @@ public class DatabaseBackend extends SQLiteOpenHelper {
cursor.close();
return list;
}
private Cursor getCursorForSession(Account account, AxolotlAddress contact) {
final SQLiteDatabase db = this.getReadableDatabase();
String[] columns = null;
String[] selectionArgs = {account.getUuid(),
contact.getName(),
Integer.toString(contact.getDeviceId())};
Cursor cursor = db.query(AxolotlService.SQLiteAxolotlStore.SESSION_TABLENAME,
columns,
AxolotlService.SQLiteAxolotlStore.ACCOUNT + " = ? AND "
+ AxolotlService.SQLiteAxolotlStore.NAME + " = ? AND "
+ AxolotlService.SQLiteAxolotlStore.DEVICE_ID + " = ? ",
selectionArgs,
null, null, null);
return cursor;
}
public SessionRecord loadSession(Account account, AxolotlAddress contact) {
SessionRecord session = null;
Cursor cursor = getCursorForSession(account, contact);
if(cursor.getCount() != 0) {
cursor.moveToFirst();
try {
session = new SessionRecord(cursor.getString(cursor.getColumnIndex(AxolotlService.SQLiteAxolotlStore.KEY)).getBytes());
} catch (IOException e) {
throw new AssertionError(e);
}
}
cursor.close();
return session;
}
public List<Integer> getSubDeviceSessions(Account account, AxolotlAddress contact) {
List<Integer> devices = new ArrayList<>();
final SQLiteDatabase db = this.getReadableDatabase();
String[] columns = {AxolotlService.SQLiteAxolotlStore.DEVICE_ID};
String[] selectionArgs = {account.getUuid(),
contact.getName()};
Cursor cursor = db.query(AxolotlService.SQLiteAxolotlStore.SESSION_TABLENAME,
columns,
AxolotlService.SQLiteAxolotlStore.ACCOUNT + " = ? AND "
+ AxolotlService.SQLiteAxolotlStore.NAME + " = ? AND ",
selectionArgs,
null, null, null);
while(cursor.moveToNext()) {
devices.add(cursor.getInt(
cursor.getColumnIndex(AxolotlService.SQLiteAxolotlStore.DEVICE_ID)));
}
cursor.close();
return devices;
}
public boolean containsSession(Account account, AxolotlAddress contact) {
Cursor cursor = getCursorForSession(account, contact);
int count = cursor.getCount();
cursor.close();
return count != 0;
}
public void storeSession(Account account, AxolotlAddress contact, SessionRecord session) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(AxolotlService.SQLiteAxolotlStore.NAME, contact.getName());
values.put(AxolotlService.SQLiteAxolotlStore.DEVICE_ID, contact.getDeviceId());
values.put(AxolotlService.SQLiteAxolotlStore.KEY, session.serialize());
values.put(AxolotlService.SQLiteAxolotlStore.ACCOUNT, account.getUuid());
db.insert(AxolotlService.SQLiteAxolotlStore.SESSION_TABLENAME, null, values);
}
public void deleteSession(Account account, AxolotlAddress contact) {
SQLiteDatabase db = this.getWritableDatabase();
String[] args = {account.getUuid(),
contact.getName(),
Integer.toString(contact.getDeviceId())};
db.delete(AxolotlService.SQLiteAxolotlStore.SESSION_TABLENAME,
AxolotlService.SQLiteAxolotlStore.ACCOUNT + " = ? AND "
+ AxolotlService.SQLiteAxolotlStore.NAME + " = ? AND "
+ AxolotlService.SQLiteAxolotlStore.DEVICE_ID + " = ? ",
args);
}
public void deleteAllSessions(Account account, AxolotlAddress contact) {
SQLiteDatabase db = this.getWritableDatabase();
String[] args = {account.getUuid(), contact.getName()};
db.delete(AxolotlService.SQLiteAxolotlStore.SESSION_TABLENAME,
AxolotlService.SQLiteAxolotlStore.ACCOUNT + "=? AND "
+ AxolotlService.SQLiteAxolotlStore.NAME + " = ?",
args);
}
private Cursor getCursorForPreKey(Account account, int preKeyId) {
SQLiteDatabase db = this.getReadableDatabase();
String[] columns = {AxolotlService.SQLiteAxolotlStore.KEY};
String[] selectionArgs = {account.getUuid(), Integer.toString(preKeyId)};
Cursor cursor = db.query(AxolotlService.SQLiteAxolotlStore.PREKEY_TABLENAME,
columns,
AxolotlService.SQLiteAxolotlStore.ACCOUNT + "=? AND "
+ AxolotlService.SQLiteAxolotlStore.ID + "=?",
selectionArgs,
null, null, null);
return cursor;
}
public PreKeyRecord loadPreKey(Account account, int preKeyId) {
PreKeyRecord record = null;
Cursor cursor = getCursorForPreKey(account, preKeyId);
if(cursor.getCount() != 0) {
cursor.moveToFirst();
try {
record = new PreKeyRecord(cursor.getString(cursor.getColumnIndex(AxolotlService.SQLiteAxolotlStore.KEY)).getBytes());
} catch (IOException e ) {
throw new AssertionError(e);
}
}
cursor.close();
return record;
}
public boolean containsPreKey(Account account, int preKeyId) {
Cursor cursor = getCursorForPreKey(account, preKeyId);
int count = cursor.getCount();
cursor.close();
return count != 0;
}
public void storePreKey(Account account, PreKeyRecord record) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(AxolotlService.SQLiteAxolotlStore.ID, record.getId());
values.put(AxolotlService.SQLiteAxolotlStore.KEY, record.serialize());
values.put(AxolotlService.SQLiteAxolotlStore.ACCOUNT, account.getUuid());
db.insert(AxolotlService.SQLiteAxolotlStore.PREKEY_TABLENAME, null, values);
}
public void deletePreKey(Account account, int preKeyId) {
SQLiteDatabase db = this.getWritableDatabase();
String[] args = {account.getUuid(), Integer.toString(preKeyId)};
db.delete(AxolotlService.SQLiteAxolotlStore.PREKEY_TABLENAME,
AxolotlService.SQLiteAxolotlStore.ACCOUNT + "=? AND "
+ AxolotlService.SQLiteAxolotlStore.ID + "=?",
args);
}
private Cursor getCursorForSignedPreKey(Account account, int signedPreKeyId) {
SQLiteDatabase db = this.getReadableDatabase();
String[] columns = {AxolotlService.SQLiteAxolotlStore.KEY};
String[] selectionArgs = {account.getUuid(), Integer.toString(signedPreKeyId)};
Cursor cursor = db.query(AxolotlService.SQLiteAxolotlStore.SIGNED_PREKEY_TABLENAME,
columns,
AxolotlService.SQLiteAxolotlStore.ACCOUNT + "=? AND " + AxolotlService.SQLiteAxolotlStore.ID + "=?",
selectionArgs,
null, null, null);
return cursor;
}
public SignedPreKeyRecord loadSignedPreKey(Account account, int signedPreKeyId) {
SignedPreKeyRecord record = null;
Cursor cursor = getCursorForPreKey(account, signedPreKeyId);
if(cursor.getCount() != 0) {
cursor.moveToFirst();
try {
record = new SignedPreKeyRecord(cursor.getString(cursor.getColumnIndex(AxolotlService.SQLiteAxolotlStore.KEY)).getBytes());
} catch (IOException e ) {
throw new AssertionError(e);
}
}
cursor.close();
return record;
}
public List<SignedPreKeyRecord> loadSignedPreKeys(Account account) {
List<SignedPreKeyRecord> prekeys = new ArrayList<>();
SQLiteDatabase db = this.getReadableDatabase();
String[] columns = {AxolotlService.SQLiteAxolotlStore.KEY};
String[] selectionArgs = {account.getUuid()};
Cursor cursor = db.query(AxolotlService.SQLiteAxolotlStore.SIGNED_PREKEY_TABLENAME,
columns,
AxolotlService.SQLiteAxolotlStore.ACCOUNT + "=?",
selectionArgs,
null, null, null);
while(cursor.moveToNext()) {
try {
prekeys.add(new SignedPreKeyRecord(cursor.getString(cursor.getColumnIndex(AxolotlService.SQLiteAxolotlStore.KEY)).getBytes()));
} catch (IOException ignored) {
}
}
return prekeys;
}
public boolean containsSignedPreKey(Account account, int signedPreKeyId) {
Cursor cursor = getCursorForPreKey(account, signedPreKeyId);
int count = cursor.getCount();
cursor.close();
return count != 0;
}
public void storeSignedPreKey(Account account, SignedPreKeyRecord record) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(AxolotlService.SQLiteAxolotlStore.ID, record.getId());
values.put(AxolotlService.SQLiteAxolotlStore.KEY, record.serialize());
values.put(AxolotlService.SQLiteAxolotlStore.ACCOUNT, account.getUuid());
db.insert(AxolotlService.SQLiteAxolotlStore.SIGNED_PREKEY_TABLENAME, null, values);
}
public void deleteSignedPreKey(Account account, int signedPreKeyId) {
SQLiteDatabase db = this.getWritableDatabase();
String[] args = {account.getUuid(), Integer.toString(signedPreKeyId)};
db.delete(AxolotlService.SQLiteAxolotlStore.SIGNED_PREKEY_TABLENAME,
AxolotlService.SQLiteAxolotlStore.ACCOUNT + "=? AND "
+ AxolotlService.SQLiteAxolotlStore.ID + "=?",
args);
}
}