diff options
Diffstat (limited to 'src/main/java/de/thedevstack/conversationsplus/crypto/axolotl/SQLiteAxolotlStore.java')
| -rw-r--r-- | src/main/java/de/thedevstack/conversationsplus/crypto/axolotl/SQLiteAxolotlStore.java | 429 |
1 files changed, 0 insertions, 429 deletions
diff --git a/src/main/java/de/thedevstack/conversationsplus/crypto/axolotl/SQLiteAxolotlStore.java b/src/main/java/de/thedevstack/conversationsplus/crypto/axolotl/SQLiteAxolotlStore.java deleted file mode 100644 index 35f630bb..00000000 --- a/src/main/java/de/thedevstack/conversationsplus/crypto/axolotl/SQLiteAxolotlStore.java +++ /dev/null @@ -1,429 +0,0 @@ -package de.thedevstack.conversationsplus.crypto.axolotl; - -import android.util.Log; -import android.util.LruCache; - -import org.whispersystems.libaxolotl.AxolotlAddress; -import org.whispersystems.libaxolotl.IdentityKey; -import org.whispersystems.libaxolotl.IdentityKeyPair; -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.security.cert.X509Certificate; -import java.util.List; -import java.util.Set; - -import de.thedevstack.conversationsplus.Config; -import de.thedevstack.conversationsplus.entities.Account; -import de.thedevstack.conversationsplus.services.XmppConnectionService; - -public 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 = "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 FINGERPRINT = "fingerprint"; - public static final String NAME = "name"; - public static final String TRUSTED = "trusted"; - public static final String OWN = "ownkey"; - public static final String CERTIFICATE = "certificate"; - - public static final String JSONKEY_REGISTRATION_ID = "axolotl_reg_id"; - public static final String JSONKEY_CURRENT_PREKEY_ID = "axolotl_cur_prekey_id"; - - private static final int NUM_TRUSTS_TO_CACHE = 100; - - private final Account account; - private final XmppConnectionService mXmppConnectionService; - - private IdentityKeyPair identityKeyPair; - private int localRegistrationId; - private int currentPreKeyId = 0; - - private final LruCache<String, XmppAxolotlSession.Trust> trustCache = - new LruCache<String, XmppAxolotlSession.Trust>(NUM_TRUSTS_TO_CACHE) { - @Override - protected XmppAxolotlSession.Trust create(String fingerprint) { - return mXmppConnectionService.databaseBackend.isIdentityKeyTrusted(account, fingerprint); - } - }; - - private static IdentityKeyPair generateIdentityKeyPair() { - Log.i(Config.LOGTAG, AxolotlService.LOGPREFIX + " : " + "Generating axolotl IdentityKeyPair..."); - ECKeyPair identityKeyPairKeys = Curve.generateKeyPair(); - return new IdentityKeyPair(new IdentityKey(identityKeyPairKeys.getPublicKey()), - identityKeyPairKeys.getPrivateKey()); - } - - private static int generateRegistrationId() { - Log.i(Config.LOGTAG, AxolotlService.LOGPREFIX + " : " + "Generating axolotl registration ID..."); - return KeyHelper.generateRegistrationId(true); - } - - public SQLiteAxolotlStore(Account account, XmppConnectionService service) { - this.account = account; - this.mXmppConnectionService = service; - this.localRegistrationId = loadRegistrationId(); - this.currentPreKeyId = loadCurrentPreKeyId(); - for (SignedPreKeyRecord record : loadSignedPreKeys()) { - Log.d(Config.LOGTAG, AxolotlServiceImpl.getLogprefix(account) + "Got Axolotl signed prekey record:" + record.getId()); - } - } - - public int getCurrentPreKeyId() { - return currentPreKeyId; - } - - // -------------------------------------- - // IdentityKeyStore - // -------------------------------------- - - private IdentityKeyPair loadIdentityKeyPair() { - IdentityKeyPair ownKey = mXmppConnectionService.databaseBackend.loadOwnIdentityKeyPair(account); - - if (ownKey != null) { - return ownKey; - } else { - Log.i(Config.LOGTAG, AxolotlServiceImpl.getLogprefix(account) + "Could not retrieve own IdentityKeyPair"); - ownKey = generateIdentityKeyPair(); - mXmppConnectionService.databaseBackend.storeOwnIdentityKeyPair(account, ownKey); - } - return ownKey; - } - - private int loadRegistrationId() { - return loadRegistrationId(false); - } - - private int loadRegistrationId(boolean regenerate) { - String regIdString = this.account.getKey(JSONKEY_REGISTRATION_ID); - int reg_id; - if (!regenerate && regIdString != null) { - reg_id = Integer.valueOf(regIdString); - } else { - Log.i(Config.LOGTAG, AxolotlServiceImpl.getLogprefix(account) + "Could not retrieve axolotl registration id for account " + account.getJid()); - reg_id = generateRegistrationId(); - boolean success = this.account.setKey(JSONKEY_REGISTRATION_ID, Integer.toString(reg_id)); - if (success) { - mXmppConnectionService.databaseBackend.updateAccount(account); - } else { - Log.e(Config.LOGTAG, AxolotlServiceImpl.getLogprefix(account) + "Failed to write new key to the database!"); - } - } - return reg_id; - } - - private int loadCurrentPreKeyId() { - String regIdString = this.account.getKey(JSONKEY_CURRENT_PREKEY_ID); - int reg_id; - if (regIdString != null) { - reg_id = Integer.valueOf(regIdString); - } else { - Log.w(Config.LOGTAG, AxolotlServiceImpl.getLogprefix(account) + "Could not retrieve current prekey id for account " + account.getJid()); - reg_id = 0; - } - return reg_id; - } - - public void regenerate() { - mXmppConnectionService.databaseBackend.wipeAxolotlDb(account); - trustCache.evictAll(); - account.setKey(JSONKEY_CURRENT_PREKEY_ID, Integer.toString(0)); - identityKeyPair = loadIdentityKeyPair(); - localRegistrationId = loadRegistrationId(true); - currentPreKeyId = 0; - mXmppConnectionService.updateAccountUi(); - } - - /** - * Get the local client's identity key pair. - * - * @return The local client's persistent identity key pair. - */ - @Override - public IdentityKeyPair getIdentityKeyPair() { - if (identityKeyPair == null) { - identityKeyPair = loadIdentityKeyPair(); - } - 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) { - if (!mXmppConnectionService.databaseBackend.loadIdentityKeys(account, name).contains(identityKey)) { - mXmppConnectionService.databaseBackend.storeIdentityKey(account, name, identityKey); - } - } - - /** - * 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) { - return true; - } - - public XmppAxolotlSession.Trust getFingerprintTrust(String fingerprint) { - return (fingerprint == null)? null : trustCache.get(fingerprint); - } - - public void setFingerprintTrust(String fingerprint, XmppAxolotlSession.Trust trust) { - mXmppConnectionService.databaseBackend.setIdentityKeyTrust(account, fingerprint, trust); - trustCache.remove(fingerprint); - } - - public void setFingerprintCertificate(String fingerprint, X509Certificate x509Certificate) { - mXmppConnectionService.databaseBackend.setIdentityKeyCertificate(account, fingerprint, x509Certificate); - } - - public X509Certificate getFingerprintCertificate(String fingerprint) { - return mXmppConnectionService.databaseBackend.getIdentityKeyCertifcate(account, fingerprint); - } - - public Set<IdentityKey> getContactKeysWithTrust(String bareJid, XmppAxolotlSession.Trust trust) { - return mXmppConnectionService.databaseBackend.loadIdentityKeys(account, bareJid, trust); - } - - public long getContactNumTrustedKeys(String bareJid) { - return mXmppConnectionService.databaseBackend.numTrustedKeys(account, bareJid); - } - - // -------------------------------------- - // 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) { - AxolotlAddress address = new AxolotlAddress(name, 0); - mXmppConnectionService.databaseBackend.deleteAllSessions(account, - address); - } - - // -------------------------------------- - // 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: " + preKeyId); - } - 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); - currentPreKeyId = preKeyId; - boolean success = this.account.setKey(JSONKEY_CURRENT_PREKEY_ID, Integer.toString(preKeyId)); - if (success) { - mXmppConnectionService.databaseBackend.updateAccount(account); - } else { - Log.e(Config.LOGTAG, AxolotlServiceImpl.getLogprefix(account) + "Failed to write new prekey id to the database!"); - } - } - - /** - * @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 SignedPreKeyRecord: " + signedPreKeyId); - } - 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); - } -} |