mirror of https://git.matrix.org/git/olm.git
Android: Add wrappers for export/import of inbound group sessions
Yannick LE COLLEN
Richard van der Hoff
parent
1761730db8
commit
3c02c1547c
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@ -521,5 +521,107 @@ public class OlmGroupSessionTest {
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assertTrue(0!=EXPECTED_ERROR_MESSAGE.length());
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assertTrue(EXPECTED_ERROR_MESSAGE.equals(exceptionMessage));
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}
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/**
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* Test the import/export functions.<br>
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**/
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@Test
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public void test20TestInboundGroupSessionImportExport() {
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String sessionKey = "AgAAAAAwMTIzNDU2Nzg5QUJERUYwMTIzNDU2Nzg5QUJDREVGMDEyMzQ1Njc4OUFCREVGM" +
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"DEyMzQ1Njc4OUFCQ0RFRjAxMjM0NTY3ODlBQkRFRjAxMjM0NTY3ODlBQkNERUYwMTIzND" +
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"U2Nzg5QUJERUYwMTIzNDU2Nzg5QUJDREVGMDEyMw0bdg1BDq4Px/slBow06q8n/B9WBfw" +
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"WYyNOB8DlUmXGGwrFmaSb9bR/eY8xgERrxmP07hFmD9uqA2p8PMHdnV5ysmgufE6oLZ5+" +
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"8/mWQOW3VVTnDIlnwd8oHUYRuk8TCQ";
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String message = "AwgAEhAcbh6UpbByoyZxufQ+h2B+8XHMjhR69G8F4+qjMaFlnIXusJZX3r8LnRORG9T3D" +
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"XFdbVuvIWrLyRfm4i8QRbe8VPwGRFG57B1CtmxanuP8bHtnnYqlwPsD";
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OlmInboundGroupSession inboundGroupSession = null;
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try {
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inboundGroupSession = new OlmInboundGroupSession(sessionKey);
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} catch (Exception e) {
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assertTrue("OlmInboundGroupSession failed " + e.getMessage(), false);
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}
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boolean isVerified = false;
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try {
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isVerified = inboundGroupSession.isVerified();
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} catch (Exception e) {
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assertTrue("isVerified failed " + e.getMessage(), false);
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}
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assertTrue(isVerified);
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OlmInboundGroupSession.DecryptMessageResult result = null;
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try {
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result = inboundGroupSession.decryptMessage(message);
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} catch (Exception e) {
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assertTrue("decryptMessage failed " + e.getMessage(), false);
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}
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assertTrue(TextUtils.equals(result.mDecryptedMessage, "Message"));
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assertTrue(0 == result.mIndex);
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String export = null;
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try {
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export = inboundGroupSession.export(0);
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} catch (Exception e) {
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assertTrue("export failed " + e.getMessage(), false);
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}
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assertTrue(!TextUtils.isEmpty(export));
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long index = -1;
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try {
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index = inboundGroupSession.getFirstKnownIndex();
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} catch (Exception e) {
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assertTrue("getFirstKnownIndex failed " + e.getMessage(), false);
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}
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assertTrue(index >=0);
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inboundGroupSession.releaseSession();
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inboundGroupSession = null;
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OlmInboundGroupSession inboundGroupSession2 = null;
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try {
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inboundGroupSession2 = inboundGroupSession.importSession(export);
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} catch (Exception e) {
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assertTrue("OlmInboundGroupSession failed " + e.getMessage(), false);
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}
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try {
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isVerified = inboundGroupSession2.isVerified();
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} catch (Exception e) {
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assertTrue("isVerified failed " + e.getMessage(), false);
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}
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assertFalse(isVerified);
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result = null;
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try {
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result = inboundGroupSession2.decryptMessage(message);
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} catch (Exception e) {
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assertTrue("decryptMessage failed " + e.getMessage(), false);
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}
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assertTrue(TextUtils.equals(result.mDecryptedMessage, "Message"));
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assertTrue(0 == result.mIndex);
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try {
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isVerified = inboundGroupSession2.isVerified();
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} catch (Exception e) {
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assertTrue("isVerified failed " + e.getMessage(), false);
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}
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assertTrue(isVerified);
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inboundGroupSession2.releaseSession();
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}
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}
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@ -40,6 +40,9 @@ public class OlmException extends IOException {
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public static final int EXCEPTION_CODE_INIT_INBOUND_GROUP_SESSION = 201;
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public static final int EXCEPTION_CODE_INBOUND_GROUP_SESSION_IDENTIFIER = 202;
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public static final int EXCEPTION_CODE_INBOUND_GROUP_SESSION_DECRYPT_SESSION = 203;
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public static final int EXCEPTION_CODE_INBOUND_GROUP_SESSION_FIRST_KNOWN_INDEX = 204;
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public static final int EXCEPTION_CODE_INBOUND_GROUP_SESSION_IS_VERIFIED = 205;
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public static final int EXCEPTION_CODE_INBOUND_GROUP_SESSION_EXPORT = 206;
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public static final int EXCEPTION_CODE_CREATE_OUTBOUND_GROUP_SESSION = 300;
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public static final int EXCEPTION_CODE_INIT_OUTBOUND_GROUP_SESSION = 301;
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@ -59,12 +59,24 @@ public class OlmInboundGroupSession extends CommonSerializeUtils implements Seri
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* @throws OlmException constructor failure
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*/
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public OlmInboundGroupSession(String aSessionKey) throws OlmException {
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this(aSessionKey, false);
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}
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/**
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* Constructor.<br>
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* Create and save a new native session instance ID and start a new inbound group session.
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* The session key parameter is retrieved from an outbound group session.
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* @param aSessionKey session key
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* @param isImported true when the session key has been retrieved from a backup
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* @throws OlmException constructor failure
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*/
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private OlmInboundGroupSession(String aSessionKey, boolean isImported) throws OlmException {
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if (TextUtils.isEmpty(aSessionKey)) {
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Log.e(LOG_TAG, "## initInboundGroupSession(): invalid session key");
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throw new OlmException(OlmException.EXCEPTION_CODE_INIT_INBOUND_GROUP_SESSION, "invalid session key");
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} else {
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try {
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mNativeId = createNewSessionJni(aSessionKey.getBytes("UTF-8"));
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mNativeId = createNewSessionJni(aSessionKey.getBytes("UTF-8"), isImported);
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} catch (Exception e) {
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throw new OlmException(OlmException.EXCEPTION_CODE_INIT_INBOUND_GROUP_SESSION, e.getMessage());
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}
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@ -76,9 +88,20 @@ public class OlmInboundGroupSession extends CommonSerializeUtils implements Seri
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* Since a C prt is returned as a jlong, special care will be taken
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* to make the cast (OlmInboundGroupSession* to jlong) platform independent.
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* @param aSessionKeyBuffer session key from an outbound session
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* @param isImported true when the session key has been retrieved from a backup
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* @return the initialized OlmInboundGroupSession* instance or throw an exception it fails.
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**/
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private native long createNewSessionJni(byte[] aSessionKeyBuffer);
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private native long createNewSessionJni(byte[] aSessionKeyBuffer, boolean isImported);
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/**
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* Create an OlmInboundGroupSession from its exported session data.
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* @param exported the exported data
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* @return the created OlmException
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* @throws OlmException the failure reason
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*/
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public static OlmInboundGroupSession importSession(String exported) throws OlmException {
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return new OlmInboundGroupSession(exported, true);
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}
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/**
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* Release native session and invalid its JAVA reference counter part.<br>
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@ -95,7 +118,7 @@ public class OlmInboundGroupSession extends CommonSerializeUtils implements Seri
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* Destroy the corresponding OLM inbound group session native object.<br>
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* This method must ALWAYS be called when this JAVA instance
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* is destroyed (ie. garbage collected) to prevent memory leak in native side.
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* See {@link #createNewSessionJni(byte[])}.
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* See {@link #createNewSessionJni(byte[], boolean)}.
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*/
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private native void releaseSessionJni();
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@ -128,6 +151,86 @@ public class OlmInboundGroupSession extends CommonSerializeUtils implements Seri
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*/
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private native byte[] sessionIdentifierJni();
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/**
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* Provides the first known index.
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* @return the first known index.
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* @throws OlmException the failure reason
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*/
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public long getFirstKnownIndex() throws OlmException {
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long index = 0;
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try {
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index = firstKnownIndexJni();
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} catch (Exception e) {
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Log.e(LOG_TAG, "## getFirstKnownIndex() failed " + e.getMessage());
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throw new OlmException(OlmException.EXCEPTION_CODE_INBOUND_GROUP_SESSION_FIRST_KNOWN_INDEX, e.getMessage());
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}
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return index;
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}
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/**
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* Provides the first known index.
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* An exception is thrown if the operation fails.
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* @return the first known index.
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*/
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private native long firstKnownIndexJni();
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/**
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* Tells if the session is verified.
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* @return true if the session is verified
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* @throws OlmException the failure reason
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*/
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public boolean isVerified() throws OlmException {
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boolean isVerified;
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try {
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isVerified = isVerifiedJni();
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} catch (Exception e) {
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Log.e(LOG_TAG, "## isVerified() failed " + e.getMessage());
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throw new OlmException(OlmException.EXCEPTION_CODE_INBOUND_GROUP_SESSION_IS_VERIFIED, e.getMessage());
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}
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return isVerified;
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}
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/**
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* Tells if the session is verified.
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* @return true if the session is verified
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*/
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private native boolean isVerifiedJni();
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/**
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* Export the session from a message index as String.
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* @param messageIndex the message index
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* @return the session as String
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* @throws OlmException the failure reason
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*/
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public String export(long messageIndex) throws OlmException {
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String result = null;
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try {
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byte[] bytesBuffer = exportJni(messageIndex);
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if (null != bytesBuffer) {
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result = new String(bytesBuffer, "UTF-8");
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}
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} catch (Exception e) {
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Log.e(LOG_TAG, "## export() failed " + e.getMessage());
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throw new OlmException(OlmException.EXCEPTION_CODE_INBOUND_GROUP_SESSION_EXPORT, e.getMessage());
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}
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return result;
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}
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/**
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* Exports the session as byte array from a message index
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* An exception is thrown if the operation fails.
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* @param messageIndex key used to encrypt the serialized session data
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* @return the session saved as bytes array
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*/
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private native byte[] exportJni(long messageIndex);
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/**
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* Decrypt the message passed in parameter.<br>
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* In case of error, null is returned and an error message description is provided in aErrorMsg.
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@ -156,7 +259,7 @@ public class OlmInboundGroupSession extends CommonSerializeUtils implements Seri
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* Decrypt a message.
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* An exception is thrown if the operation fails.
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* @param aEncryptedMsg the encrypted message
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* @param aDecryptMessageResult the decryptMessage informaton
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* @param aDecryptMessageResult the decryptMessage information
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* @return the decrypted message
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*/
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private native byte[] decryptMessageJni(byte[] aEncryptedMsg, DecryptMessageResult aDecryptMessageResult);
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@ -54,9 +54,10 @@ JNIEXPORT void OLM_INBOUND_GROUP_SESSION_FUNC_DEF(releaseSessionJni)(JNIEnv *env
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* Since a C prt is returned as a jlong, special care will be taken
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* to make the cast (OlmInboundGroupSession* => jlong) platform independent.
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* @param aSessionKeyBuffer session key from an outbound session
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* @param isImported true when the session key has been retrieved from a backup
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* @return the initialized OlmInboundGroupSession* instance or throw an exception it fails.
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**/
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JNIEXPORT jlong OLM_INBOUND_GROUP_SESSION_FUNC_DEF(createNewSessionJni)(JNIEnv *env, jobject thiz, jbyteArray aSessionKeyBuffer)
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JNIEXPORT jlong OLM_INBOUND_GROUP_SESSION_FUNC_DEF(createNewSessionJni)(JNIEnv *env, jobject thiz, jbyteArray aSessionKeyBuffer, jboolean isImported)
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{
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const char* errorMessage = NULL;
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OlmInboundGroupSession* sessionPtr = NULL;
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@ -92,7 +93,18 @@ JNIEXPORT jlong OLM_INBOUND_GROUP_SESSION_FUNC_DEF(createNewSessionJni)(JNIEnv *
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size_t sessionKeyLength = (size_t)env->GetArrayLength(aSessionKeyBuffer);
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LOGD(" ## createNewSessionJni(): sessionKeyLength=%lu", static_cast<long unsigned int>(sessionKeyLength));
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size_t sessionResult = olm_init_inbound_group_session(sessionPtr, (const uint8_t*)sessionKeyPtr, sessionKeyLength);
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size_t sessionResult;
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if (JNI_FALSE == isImported)
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{
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LOGD(" ## createNewSessionJni(): init");
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sessionResult = olm_init_inbound_group_session(sessionPtr, (const uint8_t*)sessionKeyPtr, sessionKeyLength);
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}
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else
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{
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LOGD(" ## createNewSessionJni(): import");
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sessionResult = olm_import_inbound_group_session(sessionPtr, (const uint8_t*)sessionKeyPtr, sessionKeyLength);
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}
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if (sessionResult == olm_error())
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{
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@ -110,11 +122,6 @@ JNIEXPORT jlong OLM_INBOUND_GROUP_SESSION_FUNC_DEF(createNewSessionJni)(JNIEnv *
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env->ReleaseByteArrayElements(aSessionKeyBuffer, sessionKeyPtr, JNI_ABORT);
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}
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if (errorMessage)
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{
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env->ThrowNew(env->FindClass("java/lang/Exception"), errorMessage);
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}
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if (errorMessage)
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{
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// release the allocated session
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@ -123,7 +130,6 @@ JNIEXPORT jlong OLM_INBOUND_GROUP_SESSION_FUNC_DEF(createNewSessionJni)(JNIEnv *
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olm_clear_inbound_group_session(sessionPtr);
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free(sessionPtr);
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}
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env->ThrowNew(env->FindClass("java/lang/Exception"), errorMessage);
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}
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@ -326,6 +332,135 @@ JNIEXPORT jbyteArray OLM_INBOUND_GROUP_SESSION_FUNC_DEF(decryptMessageJni)(JNIEn
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return decryptedMsgBuffer;
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}
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/**
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* Provides the first known index.
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* An exception is thrown if the operation fails.
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* @return the first known index
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*/
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JNIEXPORT jlong OLM_INBOUND_GROUP_SESSION_FUNC_DEF(firstKnownIndexJni)(JNIEnv *env, jobject thiz)
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{
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const char* errorMessage = NULL;
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OlmInboundGroupSession *sessionPtr = getInboundGroupSessionInstanceId(env, thiz);
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long returnValue = 0;
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LOGD("## firstKnownIndexJni(): inbound group session IN");
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if (!sessionPtr)
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{
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LOGE(" ## firstKnownIndexJni(): failure - invalid inbound group session instance");
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errorMessage = "invalid inbound group session instance";
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}
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else
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{
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returnValue = olm_inbound_group_session_first_known_index(sessionPtr);
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}
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if (errorMessage)
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{
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env->ThrowNew(env->FindClass("java/lang/Exception"), errorMessage);
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}
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return returnValue;
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}
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/**
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* Tells if the session is verified.
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* An exception is thrown if the operation fails.
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* @return true if the session is verified
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*/
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JNIEXPORT jboolean OLM_INBOUND_GROUP_SESSION_FUNC_DEF(isVerifiedJni)(JNIEnv *env, jobject thiz)
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{
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const char* errorMessage = NULL;
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OlmInboundGroupSession *sessionPtr = getInboundGroupSessionInstanceId(env, thiz);
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jboolean returnValue = JNI_FALSE;
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LOGD("## isVerifiedJni(): inbound group session IN");
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if (!sessionPtr)
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{
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LOGE(" ## isVerifiedJni(): failure - invalid inbound group session instance");
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errorMessage = "invalid inbound group session instance";
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}
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else
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{
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LOGE(" ## isVerifiedJni(): faaa %d", olm_inbound_group_session_is_verified(sessionPtr));
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returnValue = (0 != olm_inbound_group_session_is_verified(sessionPtr)) ? JNI_TRUE : JNI_FALSE;
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}
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if (errorMessage)
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{
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env->ThrowNew(env->FindClass("java/lang/Exception"), errorMessage);
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}
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return returnValue;
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}
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/**
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* Exports the session as byte array from a message index
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* An exception is thrown if the operation fails.
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* @param messageIndex key used to encrypt the serialized session data
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* @return the session saved as bytes array
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**/
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JNIEXPORT jbyteArray OLM_INBOUND_GROUP_SESSION_FUNC_DEF(exportJni)(JNIEnv *env, jobject thiz, jlong messageIndex) {
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jbyteArray exportedByteArray = 0;
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const char* errorMessage = NULL;
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OlmInboundGroupSession *sessionPtr = getInboundGroupSessionInstanceId(env, thiz);
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LOGD("## exportJni(): inbound group session IN");
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if (!sessionPtr)
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{
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LOGE(" ## exportJni (): failure - invalid inbound group session instance");
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errorMessage = "invalid inbound group session instance";
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}
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else
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{
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size_t length = olm_export_inbound_group_session_length(sessionPtr);
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LOGD(" ## exportJni(): length =%lu", static_cast<long unsigned int>(length));
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void *bufferPtr = malloc(length * sizeof(uint8_t));
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if (!bufferPtr)
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{
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LOGE(" ## exportJni(): failure - pickledPtr buffer OOM");
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errorMessage = "pickledPtr buffer OOM";
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}
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else
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{
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size_t result = olm_export_inbound_group_session(sessionPtr,
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(uint8_t*)bufferPtr,
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length,
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(long) messageIndex);
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if (result == olm_error())
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{
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errorMessage = olm_inbound_group_session_last_error(sessionPtr);
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LOGE(" ## exportJni(): failure - olm_export_inbound_group_session() Msg=%s", errorMessage);
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}
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else
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{
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LOGD(" ## exportJni(): success - result=%lu buffer=%.*s", static_cast<long unsigned int>(result), static_cast<int>(length), static_cast<char*>(bufferPtr));
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exportedByteArray = env->NewByteArray(length);
|
||||
env->SetByteArrayRegion(exportedByteArray, 0 , length, (jbyte*)bufferPtr);
|
||||
|
||||
// clean before leaving
|
||||
memset(bufferPtr, 0, length);
|
||||
}
|
||||
|
||||
free(bufferPtr);
|
||||
}
|
||||
}
|
||||
|
||||
if (errorMessage)
|
||||
{
|
||||
env->ThrowNew(env->FindClass("java/lang/Exception"), errorMessage);
|
||||
}
|
||||
|
||||
return exportedByteArray;
|
||||
}
|
||||
|
||||
/**
|
||||
* Serialize and encrypt session instance into a base64 string.<br>
|
||||
|
|
|
|||
|
|
@ -30,11 +30,16 @@ extern "C" {
|
|||
|
||||
// session creation/destruction
|
||||
JNIEXPORT void OLM_INBOUND_GROUP_SESSION_FUNC_DEF(releaseSessionJni)(JNIEnv *env, jobject thiz);
|
||||
JNIEXPORT jlong OLM_INBOUND_GROUP_SESSION_FUNC_DEF(createNewSessionJni)(JNIEnv *env, jobject thiz, jbyteArray aSessionKeyBuffer);
|
||||
JNIEXPORT jlong OLM_INBOUND_GROUP_SESSION_FUNC_DEF(createNewSessionJni)(JNIEnv *env, jobject thiz, jbyteArray aSessionKeyBuffer, jboolean isImported);
|
||||
|
||||
JNIEXPORT jbyteArray OLM_INBOUND_GROUP_SESSION_FUNC_DEF(sessionIdentifierJni)(JNIEnv *env, jobject thiz);
|
||||
JNIEXPORT jbyteArray OLM_INBOUND_GROUP_SESSION_FUNC_DEF(decryptMessageJni)(JNIEnv *env, jobject thiz, jbyteArray aEncryptedMsg, jobject aDecryptIndex);
|
||||
|
||||
JNIEXPORT jlong OLM_INBOUND_GROUP_SESSION_FUNC_DEF(firstKnownIndexJni)(JNIEnv *env, jobject thiz);
|
||||
JNIEXPORT jboolean OLM_INBOUND_GROUP_SESSION_FUNC_DEF(isVerifiedJni)(JNIEnv *env, jobject thiz);
|
||||
|
||||
JNIEXPORT jbyteArray OLM_INBOUND_GROUP_SESSION_FUNC_DEF(exportJni)(JNIEnv *env, jobject thiz, jlong messageIndex);
|
||||
|
||||
// serialization
|
||||
JNIEXPORT jbyteArray OLM_INBOUND_GROUP_SESSION_FUNC_DEF(serializeJni)(JNIEnv *env, jobject thiz, jbyteArray aKey);
|
||||
JNIEXPORT jlong OLM_INBOUND_GROUP_SESSION_FUNC_DEF(deserializeJni)(JNIEnv *env, jobject thiz, jbyteArray aSerializedData, jbyteArray aKey);
|
||||
|
|
|
|||
Loading…
Reference in New Issue