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the OlmOutboundGroupSession methods trigger an exception when they fail

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This commit is contained in:
ylecollen 2017-01-04 13:13:13 +01:00
parent 261c08086c
commit 846ea49a98
6 changed files with 110 additions and 105 deletions
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28
java/android/OlmLibSdk/olm-sdk/src/androidTest/java/org/matrix/olm/OlmGroupSessionTest.java
View file

@ -90,7 +90,14 @@ public class OlmGroupSessionTest {
@Test
public void test02GetOutboundGroupSessionIdentifier() {
// test session ID
mAliceSessionIdentifier = mAliceOutboundGroupSession.sessionIdentifier();
mAliceSessionIdentifier = null;
try {
mAliceSessionIdentifier = mAliceOutboundGroupSession.sessionIdentifier();
} catch (Exception e) {
assertTrue(e.getMessage(), false);
}
assertNotNull(mAliceSessionIdentifier);
assertTrue(mAliceSessionIdentifier.length() > 0);
}
@ -98,7 +105,13 @@ public class OlmGroupSessionTest {
@Test
public void test03GetOutboundGroupSessionKey() {
// test session Key
mAliceOutboundSessionKey = mAliceOutboundGroupSession.sessionKey();
mAliceOutboundSessionKey = null;
try {
mAliceOutboundSessionKey = mAliceOutboundGroupSession.sessionKey();
} catch (Exception e) {
assertTrue(e.getMessage(), false);
}
assertNotNull(mAliceOutboundSessionKey);
assertTrue(mAliceOutboundSessionKey.length() > 0);
}
@ -115,7 +128,7 @@ public class OlmGroupSessionTest {
// alice encrypts a message to bob
try {
mAliceToBobMessage = mAliceOutboundGroupSession.encryptMessage(CLEAR_MESSAGE1);
} catch (OlmOutboundGroupSession.EncryptMessageException e) {
} catch (Exception e) {
assertTrue("Exception in bob encryptMessage, Exception code=" + e.getMessage(), false);
}
assertFalse(TextUtils.isEmpty(mAliceToBobMessage));
@ -275,7 +288,13 @@ public class OlmGroupSessionTest {
assertNotNull(aliceOutboundGroupSession);
// get the session key from the outbound group session
String sessionKeyRef = aliceOutboundGroupSession.sessionKey();
String sessionKeyRef = null;
try {
sessionKeyRef = aliceOutboundGroupSession.sessionKey();
} catch (Exception e) {
assertTrue(e.getMessage(), false);
}
assertNotNull(sessionKeyRef);
// bob creates INBOUND GROUP SESSION
@ -286,7 +305,6 @@ public class OlmGroupSessionTest {
}
assertNotNull(bobInboundGroupSessionRef);
// serialize alice session
Context context = getInstrumentation().getContext();
try {

3
java/android/OlmLibSdk/olm-sdk/src/main/java/org/matrix/olm/OlmException.java
View file

@ -49,6 +49,9 @@ public class OlmException extends IOException {
public static final int EXCEPTION_CODE_SESSION_IDENTIFIER = 30;
public static final int EXCEPTION_CODE_SESSION_DECRYPT_SESSION = 31;
public static final int EXCEPTION_CODE_OUTBOUND_GROUP_SESSION_IDENTIFIER = 40;
public static final int EXCEPTION_CODE_OUTBOUND_GROUP_SESSION_KEY = 41;
public static final int EXCEPTION_CODE_OUTBOUND_GROUP_ENCRYPT_MESSAGE = 42;
// exception human readable messages
public static final String EXCEPTION_MSG_NEW_OUTBOUND_GROUP_SESSION = "createNewSession() failed";

3
java/android/OlmLibSdk/olm-sdk/src/main/java/org/matrix/olm/OlmInboundGroupSession.java
View file

@ -209,8 +209,6 @@ public class OlmInboundGroupSession extends CommonSerializeUtils implements Seri
protected String serialize(String aKey, StringBuffer aErrorMsg) {
String pickleRetValue = null;
aErrorMsg.setLength(0);
// sanity check
if(null == aErrorMsg) {
Log.e(LOG_TAG,"## serialize(): invalid parameter - aErrorMsg=null");
@ -218,6 +216,7 @@ public class OlmInboundGroupSession extends CommonSerializeUtils implements Seri
} else if(TextUtils.isEmpty(aKey)) {
aErrorMsg.append("Invalid input parameters in serialize()");
} else {
aErrorMsg.setLength(0);
try {
pickleRetValue = new String(serializeJni(aKey.getBytes("UTF-8")), "UTF-8");
} catch (Exception e) {

61
java/android/OlmLibSdk/olm-sdk/src/main/java/org/matrix/olm/OlmOutboundGroupSession.java
View file

@ -42,15 +42,6 @@ public class OlmOutboundGroupSession extends CommonSerializeUtils implements Ser
*/
private transient long mNativeId;
/**
* Exception triggered in {@link #encryptMessage(String)}
*/
static public class EncryptMessageException extends Exception {
public EncryptMessageException(String message) {
super(message);
}
}
/**
* Constructor.<br>
* Create and save a new session native instance ID and
@ -60,10 +51,7 @@ public class OlmOutboundGroupSession extends CommonSerializeUtils implements Ser
*/
public OlmOutboundGroupSession() throws OlmException {
if(createNewSession()) {
if( 0 != initOutboundGroupSession()) {
releaseSession();// prevent memory leak before throwing
throw new OlmException(OlmException.EXCEPTION_CODE_INIT_OUTBOUND_GROUP_SESSION, OlmException.EXCEPTION_MSG_INIT_OUTBOUND_GROUP_SESSION);
}
initOutboundGroupSession();
} else {
throw new OlmException(OlmException.EXCEPTION_CODE_CREATE_OUTBOUND_GROUP_SESSION, OlmException.EXCEPTION_MSG_NEW_OUTBOUND_GROUP_SESSION);
}
@ -114,25 +102,29 @@ public class OlmOutboundGroupSession extends CommonSerializeUtils implements Ser
/**
* Start a new outbound group session.<br>
* @return 0 if operation succeed, -1 otherwise
* @exception OlmException the failre reason
*/
private int initOutboundGroupSession() {
return initOutboundGroupSessionJni();
private void initOutboundGroupSession() throws OlmException {
try {
initOutboundGroupSessionJni();
} catch (Exception e) {
throw new OlmException(OlmException.EXCEPTION_CODE_INIT_OUTBOUND_GROUP_SESSION, e.getMessage());
}
}
private native int initOutboundGroupSessionJni();
private native void initOutboundGroupSessionJni();
/**
* Get a base64-encoded identifier for this session.
* @return session identifier if operation succeed, null otherwise.
* @return session identifier
*/
public String sessionIdentifier() {
public String sessionIdentifier() throws OlmException {
try {
return new String(sessionIdentifierJni(), "UTF-8");
} catch (Exception e) {
Log.e(LOG_TAG, "## sessionIdentifier() failed " + e.getMessage());
throw new OlmException(OlmException.EXCEPTION_CODE_OUTBOUND_GROUP_SESSION_IDENTIFIER, e.getMessage());
}
return null;
}
private native byte[] sessionIdentifierJni();
@ -153,15 +145,15 @@ public class OlmOutboundGroupSession extends CommonSerializeUtils implements Ser
* Each message is sent with a different ratchet key. This method returns the
* ratchet key that will be used for the next message.
* @return outbound session key
* @exception OlmException the failure reason
*/
public String sessionKey() {
public String sessionKey() throws OlmException {
try {
return new String(sessionKeyJni(), "UTF-8");
} catch (Exception e) {
Log.e(LOG_TAG, "## sessionKey() failed " + e.getMessage());
throw new OlmException(OlmException.EXCEPTION_CODE_OUTBOUND_GROUP_SESSION_KEY, e.getMessage());
}
return null;
}
private native byte[] sessionKeyJni();
@ -171,33 +163,27 @@ public class OlmOutboundGroupSession extends CommonSerializeUtils implements Ser
* The message given as parameter is encrypted and returned as the return value.
* @param aClearMsg message to be encrypted
* @return the encrypted message
* @exception EncryptMessageException the encryption failure reason
* @exception OlmException the encryption failure reason
*/
public String encryptMessage(String aClearMsg) throws EncryptMessageException {
public String encryptMessage(String aClearMsg) throws OlmException {
String retValue = null;
if (!TextUtils.isEmpty(aClearMsg)) {
StringBuffer errorMsg = new StringBuffer();
try {
byte[] encryptedBuffer = encryptMessageJni(aClearMsg.getBytes("UTF-8"), errorMsg);
byte[] encryptedBuffer = encryptMessageJni(aClearMsg.getBytes("UTF-8"));
if (null != encryptedBuffer) {
retValue = new String(encryptedBuffer , "UTF-8");
}
} catch (Exception e) {
Log.e(LOG_TAG, "## encryptMessage() failed " + e.getMessage());
errorMsg.append(e.getMessage());
}
if (0 != errorMsg.length()) {
throw new EncryptMessageException(errorMsg.toString());
throw new OlmException(OlmException.EXCEPTION_CODE_OUTBOUND_GROUP_ENCRYPT_MESSAGE, e.getMessage());
}
}
return retValue;
}
private native byte[] encryptMessageJni(byte[] aClearMsgBuffer, StringBuffer aErrorMsg);
private native byte[] encryptMessageJni(byte[] aClearMsgBuffer);
//==============================================================================================================
@ -242,9 +228,8 @@ public class OlmOutboundGroupSession extends CommonSerializeUtils implements Ser
} else if(TextUtils.isEmpty(aKey)) {
aErrorMsg.append("Invalid input parameters in serialize()");
} else {
aErrorMsg.setLength(0);
try {
pickleRetValue = serializeJni(aKey.getBytes("UTF-8"), aErrorMsg);
pickleRetValue = serializeJni(aKey.getBytes("UTF-8"));
} catch (Exception e) {
Log.e(LOG_TAG,"## serialize(): failed " + e.getMessage());
aErrorMsg.append(e.getMessage());
@ -253,7 +238,7 @@ public class OlmOutboundGroupSession extends CommonSerializeUtils implements Ser
return pickleRetValue;
}
private native String serializeJni(byte[] aKey, StringBuffer aErrorMsg);
private native String serializeJni(byte[] aKey);
/**

114
java/android/OlmLibSdk/olm-sdk/src/main/jni/olm_outbound_group_session.cpp
View file

@ -84,11 +84,10 @@ JNIEXPORT jlong OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(createNewSessionJni)(JNIEnv
/**
* Start a new outbound session.<br>
* @return ERROR_CODE_OK if operation succeed, ERROR_CODE_KO otherwise
*/
JNIEXPORT jint OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(initOutboundGroupSessionJni)(JNIEnv *env, jobject thiz)
JNIEXPORT void OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(initOutboundGroupSessionJni)(JNIEnv *env, jobject thiz)
{
jint retCode = ERROR_CODE_KO;
const char* errorMessage = NULL;
LOGD("## initOutboundGroupSessionJni(): IN");
@ -97,6 +96,7 @@ JNIEXPORT jint OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(initOutboundGroupSessionJni)(
if (!sessionPtr)
{
LOGE(" ## initOutboundGroupSessionJni(): failure - invalid outbound group session instance");
errorMessage = "invalid outbound group session instance";
}
else
{
@ -109,6 +109,7 @@ JNIEXPORT jint OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(initOutboundGroupSessionJni)(
if ((0 != randomLength) && !setRandomInBuffer(env, &randomBuffPtr, randomLength))
{
LOGE(" ## initOutboundGroupSessionJni(): failure - random buffer init");
errorMessage = "random buffer init";
}
else
{
@ -120,11 +121,11 @@ JNIEXPORT jint OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(initOutboundGroupSessionJni)(
size_t sessionResult = olm_init_outbound_group_session(sessionPtr, randomBuffPtr, randomLength);
if (sessionResult == olm_error()) {
LOGE(" ## initOutboundGroupSessionJni(): failure - init outbound session creation Msg=%s",(const char *)olm_outbound_group_session_last_error(sessionPtr));
errorMessage = (const char *)olm_outbound_group_session_last_error(sessionPtr);
LOGE(" ## initOutboundGroupSessionJni(): failure - init outbound session creation Msg=%s", errorMessage);
}
else
{
retCode = ERROR_CODE_OK;
LOGD(" ## initOutboundGroupSessionJni(): success - result=%lu", static_cast<long unsigned int>(sessionResult));
}
@ -132,7 +133,10 @@ JNIEXPORT jint OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(initOutboundGroupSessionJni)(
}
}
return retCode;
if (errorMessage)
{
env->ThrowNew(env->FindClass("java/lang/Exception"), errorMessage);
}
}
/**
@ -142,12 +146,14 @@ JNIEXPORT jbyteArray OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(sessionIdentifierJni)(J
{
LOGD("## sessionIdentifierJni(): outbound group session IN");
const char* errorMessage = NULL;
OlmOutboundGroupSession *sessionPtr = (OlmOutboundGroupSession*)getOutboundGroupSessionInstanceId(env,thiz);
jbyteArray returnValue = 0;
if (!sessionPtr)
{
LOGE(" ## sessionIdentifierJni(): failure - invalid outbound group session instance");
errorMessage = "invalid outbound group session instance";
}
else
{
@ -160,6 +166,7 @@ JNIEXPORT jbyteArray OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(sessionIdentifierJni)(J
if (!sessionIdPtr)
{
LOGE(" ## sessionIdentifierJni(): failure - outbound identifier allocation OOM");
errorMessage = "outbound identifier allocation OOM";
}
else
{
@ -167,7 +174,8 @@ JNIEXPORT jbyteArray OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(sessionIdentifierJni)(J
if (result == olm_error())
{
LOGE(" ## sessionIdentifierJni(): failure - outbound group session identifier failure Msg=%s",reinterpret_cast<const char*>(olm_outbound_group_session_last_error(sessionPtr)));
errorMessage = reinterpret_cast<const char*>(olm_outbound_group_session_last_error(sessionPtr));
LOGE(" ## sessionIdentifierJni(): failure - outbound group session identifier failure Msg=%s", errorMessage);
}
else
{
@ -185,6 +193,11 @@ JNIEXPORT jbyteArray OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(sessionIdentifierJni)(J
}
}
if (errorMessage)
{
env->ThrowNew(env->FindClass("java/lang/Exception"), errorMessage);
}
return returnValue;
}
@ -223,12 +236,14 @@ JNIEXPORT jbyteArray OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(sessionKeyJni)(JNIEnv *
{
LOGD("## sessionKeyJni(): outbound group session IN");
const char* errorMessage = NULL;
OlmOutboundGroupSession *sessionPtr = (OlmOutboundGroupSession*)getOutboundGroupSessionInstanceId(env,thiz);
jbyteArray returnValue = 0;
if (!sessionPtr)
{
LOGE(" ## sessionKeyJni(): failure - invalid outbound group session instance");
errorMessage = "invalid outbound group session instance";
}
else
{
@ -241,6 +256,7 @@ JNIEXPORT jbyteArray OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(sessionKeyJni)(JNIEnv *
if (!sessionKeyPtr)
{
LOGE(" ## sessionKeyJni(): failure - session key allocation OOM");
errorMessage = "session key allocation OOM";
}
else
{
@ -248,7 +264,8 @@ JNIEXPORT jbyteArray OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(sessionKeyJni)(JNIEnv *
if (result == olm_error())
{
LOGE(" ## sessionKeyJni(): failure - session key failure Msg=%s",(const char *)olm_outbound_group_session_last_error(sessionPtr));
errorMessage = (const char *)olm_outbound_group_session_last_error(sessionPtr);
LOGE(" ## sessionKeyJni(): failure - session key failure Msg=%s", errorMessage);
}
else
{
@ -265,44 +282,38 @@ JNIEXPORT jbyteArray OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(sessionKeyJni)(JNIEnv *
}
}
if (errorMessage)
{
env->ThrowNew(env->FindClass("java/lang/Exception"), errorMessage);
}
return returnValue;
}
JNIEXPORT jbyteArray OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(encryptMessageJni)(JNIEnv *env, jobject thiz, jbyteArray aClearMsgBuffer, jobject aErrorMsg)
JNIEXPORT jbyteArray OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(encryptMessageJni)(JNIEnv *env, jobject thiz, jbyteArray aClearMsgBuffer)
{
LOGD("## encryptMessageJni(): IN");
const char* errorMessage = NULL;
jbyteArray encryptedMsgRet = 0;
OlmOutboundGroupSession *sessionPtr = NULL;
jbyte* clearMsgPtr = NULL;
jclass errorMsgJClass = 0;
jmethodID errorMsgMethodId = 0;
if (!(sessionPtr = (OlmOutboundGroupSession*)getOutboundGroupSessionInstanceId(env,thiz)))
{
LOGE(" ## encryptMessageJni(): failure - invalid outbound group session ptr=NULL");
}
else if (!aErrorMsg)
{
LOGE(" ## encryptMessageJni(): failure - invalid error output");
errorMessage = "invalid outbound group session ptr=NULL";
}
else if (!aClearMsgBuffer)
{
LOGE(" ## encryptMessageJni(): failure - invalid clear message");
errorMessage = "invalid clear message";
}
else if (!(clearMsgPtr = env->GetByteArrayElements(aClearMsgBuffer, NULL)))
{
LOGE(" ## encryptMessageJni(): failure - clear message JNI allocation OOM");
}
else if (!(errorMsgJClass = env->GetObjectClass(aErrorMsg)))
{
LOGE(" ## encryptMessageJni(): failure - unable to get error class");
}
else if (!(errorMsgMethodId = env->GetMethodID(errorMsgJClass, "append", "(Ljava/lang/String;)Ljava/lang/StringBuffer;")))
{
LOGE(" ## encryptMessageJni(): failure - unable to get error method ID");
errorMessage = "clear message JNI allocation OOM";
}
else
{
@ -317,6 +328,7 @@ JNIEXPORT jbyteArray OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(encryptMessageJni)(JNIE
if (!encryptedMsgPtr)
{
LOGE(" ## encryptMessageJni(): failure - encryptedMsgPtr buffer OOM");
errorMessage = "encryptedMsgPtr buffer OOM";
}
else
{
@ -331,15 +343,8 @@ JNIEXPORT jbyteArray OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(encryptMessageJni)(JNIE
if (encryptedLength == olm_error())
{
const char * errorMsgPtr = olm_outbound_group_session_last_error(sessionPtr);
LOGE(" ## encryptMessageJni(): failure - olm_group_decrypt_max_plaintext_length Msg=%s",errorMsgPtr);
jstring errorJstring = env->NewStringUTF(errorMsgPtr);
if (errorJstring)
{
env->CallObjectMethod(aErrorMsg, errorMsgMethodId, errorJstring);
}
errorMessage = olm_outbound_group_session_last_error(sessionPtr);
LOGE(" ## encryptMessageJni(): failure - olm_group_decrypt_max_plaintext_length Msg=%s", errorMessage);
}
else
{
@ -362,6 +367,11 @@ JNIEXPORT jbyteArray OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(encryptMessageJni)(JNIE
env->ReleaseByteArrayElements(aClearMsgBuffer, clearMsgPtr, JNI_ABORT);
}
if (errorMessage)
{
env->ThrowNew(env->FindClass("java/lang/Exception"), errorMessage);
}
return encryptedMsgRet;
}
@ -369,15 +379,13 @@ JNIEXPORT jbyteArray OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(encryptMessageJni)(JNIE
/**
* Serialize and encrypt session instance into a base64 string.<br>
* @param aKey key used to encrypt the serialized session data
* @param[out] aErrorMsg error message set if operation failed
* @return a base64 string if operation succeed, null otherwise
**/
JNIEXPORT jstring OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(serializeJni)(JNIEnv *env, jobject thiz, jbyteArray aKeyBuffer, jobject aErrorMsg)
JNIEXPORT jstring OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(serializeJni)(JNIEnv *env, jobject thiz, jbyteArray aKeyBuffer)
{
const char* errorMessage = NULL;
jstring pickledDataRetValue = 0;
jclass errorMsgJClass = 0;
jmethodID errorMsgMethodId = 0;
jstring errorJstring = 0;
jbyte* keyPtr = NULL;
OlmOutboundGroupSession* sessionPtr = NULL;
@ -386,26 +394,17 @@ JNIEXPORT jstring OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(serializeJni)(JNIEnv *env,
if (!(sessionPtr = (OlmOutboundGroupSession*)getOutboundGroupSessionInstanceId(env,thiz)))
{
LOGE(" ## serializeJni(): failure - invalid session ptr");
errorMessage = "invalid session ptr";
}
else if (!aKeyBuffer)
{
LOGE(" ## serializeJni(): failure - invalid key");
}
else if (!aErrorMsg)
{
LOGE(" ## serializeJni(): failure - invalid error object");
}
else if (!(errorMsgJClass = env->GetObjectClass(aErrorMsg)))
{
LOGE(" ## serializeJni(): failure - unable to get error class");
}
else if (!(errorMsgMethodId = env->GetMethodID(errorMsgJClass, "append", "(Ljava/lang/String;)Ljava/lang/StringBuffer;")))
{
LOGE(" ## serializeJni(): failure - unable to get error method ID");
errorMessage = "invalid key";
}
else if (!(keyPtr = env->GetByteArrayElements(aKeyBuffer, 0)))
{
LOGE(" ## serializeJni(): failure - keyPtr JNI allocation OOM");
errorMessage = "keyPtr JNI allocation OOM";
}
else
{
@ -419,6 +418,7 @@ JNIEXPORT jstring OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(serializeJni)(JNIEnv *env,
if(!pickledPtr)
{
LOGE(" ## serializeJni(): failure - pickledPtr buffer OOM");
errorMessage = "pickledPtr buffer OOM";
}
else
{
@ -429,13 +429,8 @@ JNIEXPORT jstring OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(serializeJni)(JNIEnv *env,
pickledLength);
if (result == olm_error())
{
const char *errorMsgPtr = olm_outbound_group_session_last_error(sessionPtr);
LOGE(" ## serializeJni(): failure - olm_pickle_outbound_group_session() Msg=%s",errorMsgPtr);
if (!(errorJstring = env->NewStringUTF(errorMsgPtr)))
{
env->CallObjectMethod(aErrorMsg, errorMsgMethodId, errorJstring);
}
errorMessage = olm_outbound_group_session_last_error(sessionPtr);
LOGE(" ## serializeJni(): failure - olm_pickle_outbound_group_session() Msg=%s", errorMessage);
}
else
{
@ -455,6 +450,11 @@ JNIEXPORT jstring OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(serializeJni)(JNIEnv *env,
env->ReleaseByteArrayElements(aKeyBuffer, keyPtr, JNI_ABORT);
}
if (errorMessage)
{
env->ThrowNew(env->FindClass("java/lang/Exception"), errorMessage);
}
return pickledDataRetValue;
}

6
java/android/OlmLibSdk/olm-sdk/src/main/jni/olm_outbound_group_session.h
View file

@ -32,15 +32,15 @@ extern "C" {
JNIEXPORT void OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(releaseSessionJni)(JNIEnv *env, jobject thiz);
JNIEXPORT jlong OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(createNewSessionJni)(JNIEnv *env, jobject thiz);
JNIEXPORT jint OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(initOutboundGroupSessionJni)(JNIEnv *env, jobject thiz);
JNIEXPORT void OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(initOutboundGroupSessionJni)(JNIEnv *env, jobject thiz);
JNIEXPORT jbyteArray OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(sessionIdentifierJni)(JNIEnv *env, jobject thiz);
JNIEXPORT jint OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(messageIndexJni)(JNIEnv *env, jobject thiz);
JNIEXPORT jbyteArray OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(sessionKeyJni)(JNIEnv *env, jobject thiz);
JNIEXPORT jbyteArray OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(encryptMessageJni)(JNIEnv *env, jobject thiz, jbyteArray aClearMsgBuffer, jobject aErrorMsg);
JNIEXPORT jbyteArray OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(encryptMessageJni)(JNIEnv *env, jobject thiz, jbyteArray aClearMsgBuffer);
// serialization
JNIEXPORT jstring OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(serializeJni)(JNIEnv *env, jobject thiz, jbyteArray aKey, jobject aErrorMsg);
JNIEXPORT jstring OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(serializeJni)(JNIEnv *env, jobject thiz, jbyteArray aKey);
JNIEXPORT jstring OLM_OUTBOUND_GROUP_SESSION_FUNC_DEF(deserializeJni)(JNIEnv *env, jobject thiz, jbyteArray aSerializedData, jbyteArray aKey);
#ifdef __cplusplus