diff --git a/java/android/OlmLibSdk/olm-sdk/src/androidTest/java/org/matrix/olm/OlmGroupSessionTest.java b/java/android/OlmLibSdk/olm-sdk/src/androidTest/java/org/matrix/olm/OlmGroupSessionTest.java
index 7e0324bd235009c970fdd42804051d9af07ee463..fe36858d808e50d9468051193b1ceaff3d98a5ef 100644
--- a/java/android/OlmLibSdk/olm-sdk/src/androidTest/java/org/matrix/olm/OlmGroupSessionTest.java
+++ b/java/android/OlmLibSdk/olm-sdk/src/androidTest/java/org/matrix/olm/OlmGroupSessionTest.java
@@ -151,8 +151,10 @@ public class OlmGroupSessionTest {
@Test
public void test10InboundDecryptMessage() {
// test decrypted message
+ StringBuffer errorMsg = new StringBuffer();
OlmInboundGroupSession.DecryptIndex index = new OlmInboundGroupSession.DecryptIndex();
- mBobDecryptedMessage = mBobInboundGroupSession.decryptMessage(mAliceToBobMessage, index);
+
+ mBobDecryptedMessage = mBobInboundGroupSession.decryptMessage(mAliceToBobMessage, index, errorMsg);
assertFalse(TextUtils.isEmpty(mBobDecryptedMessage));
assertTrue(0==index.mIndex);
}
@@ -437,11 +439,43 @@ public class OlmGroupSessionTest {
assertTrue("Exception in test18TestBadCharacterCrashInDecrypt, Exception code=" + e.getExceptionCode(), false);
}
+ StringBuffer errorMsg = new StringBuffer();
OlmInboundGroupSession.DecryptIndex index = new OlmInboundGroupSession.DecryptIndex();
- String decryptedMessage = bobInboundGroupSession.decryptMessage(msgToDecryptWithEmoji, index);
+
+ String decryptedMessage = bobInboundGroupSession.decryptMessage(msgToDecryptWithEmoji, index, errorMsg);
assertNotNull(decryptedMessage);
assertTrue(13==index.mIndex);
}
+
+ /**
+ * Specific test to check an error message is returned by decryptMessage() API.<br>
+ * A corrupted encrypted message is passed, and a INVALID_BASE64 is
+ * espexted.
+ **/
+ @Test
+ public void test19TestErrorMessageReturnedInDecrypt() {
+ OlmInboundGroupSession bobInboundGroupSession=null;
+ final String EXPECTED_ERROR_MESSAGE= "INVALID_BASE64";
+ StringBuffer errorMsg = new StringBuffer();
+ OlmInboundGroupSession.DecryptIndex index = new OlmInboundGroupSession.DecryptIndex();
+
+ String sessionKeyRef = "AgAAAAycZE6AekIctJWYxd2AWLOY15YmxZODm/WkgbpWkyycp6ytSp/R+wo84jRrzBNWmv6ySLTZ9R0EDOk9VI2eZyQ6Efdwyo1mAvrWvTkZl9yALPdkOIVHywyG65f1SNiLrnsln3hgsT1vUrISGyKtsljoUgQpr3JDPEhD0ilAi63QBjhnGCW252b+7nF+43rb6O6lwm93LaVwe2341Gdp6EkhTUvetALezEqDOtKN00wVqAbq0RQAnUJIowxHbMswg+FyoR1K1oCjnVEoF23O9xlAn5g1XtuBZP3moJlR2lwsBA";
+ String corruptedEncryptedMsg = "AwgANYTHINGf87ge45ge7gr*/rg5ganything4gr41rrgr4re55tanythingmcsXUkhDv0UePj922kgf+";
+
+ // valid INBOUND GROUP SESSION
+ try {
+ bobInboundGroupSession = new OlmInboundGroupSession(sessionKeyRef);
+ } catch (OlmException e) {
+ assertTrue("Exception in test19TestErrorMessageReturnedInDecrypt, Exception code=" + e.getExceptionCode(), false);
+ }
+
+ String decryptedMessage = bobInboundGroupSession.decryptMessage(corruptedEncryptedMsg, index, errorMsg);
+ assertTrue(0!=EXPECTED_ERROR_MESSAGE.length());
+ assertTrue(EXPECTED_ERROR_MESSAGE.equals(errorMsg.toString()));
+ assertTrue(null==decryptedMessage);
+ assertTrue(0==index.mIndex);
+ }
+
}
diff --git a/java/android/OlmLibSdk/olm-sdk/src/main/java/org/matrix/olm/OlmInboundGroupSession.java b/java/android/OlmLibSdk/olm-sdk/src/main/java/org/matrix/olm/OlmInboundGroupSession.java
index 664b22e658ed71ea47af2190ef5db0f60466f220..073058af378017e41a9f4bc6a3aca1389dc47315 100644
--- a/java/android/OlmLibSdk/olm-sdk/src/main/java/org/matrix/olm/OlmInboundGroupSession.java
+++ b/java/android/OlmLibSdk/olm-sdk/src/main/java/org/matrix/olm/OlmInboundGroupSession.java
@@ -45,7 +45,7 @@ public class OlmInboundGroupSession extends CommonSerializeUtils implements Seri
private transient long mNativeId;
/**
- * Wrapper class to be used in {@link #decryptMessage(String, DecryptIndex)}
+ * Wrapper class to be used in {@link #decryptMessage(String, DecryptIndex, StringBuffer)}
*/
static public class DecryptIndex {
/** decrypt index **/
@@ -142,16 +142,26 @@ public class OlmInboundGroupSession extends CommonSerializeUtils implements Seri
/**
- * Decrypt the message passed in parameter.
+ * Decrypt the message passed in parameter.<br>
+ * In case of error, null is returned and an error message description is provided in aErrorMsg.
* @param aEncryptedMsg the message to be decrypted
* @param aDecryptIndex_out decrypted message index
+ * @param aErrorMsg error message description
* @return the decrypted message if operation succeed, null otherwise.
*/
- public String decryptMessage(String aEncryptedMsg, DecryptIndex aDecryptIndex_out) {
- String decryptedMessage = decryptMessageJni(aEncryptedMsg, aDecryptIndex_out, OlmManager.ENABLE_STRING_UTF8_SPECIFIC_CONVERSION);
+ public String decryptMessage(String aEncryptedMsg, DecryptIndex aDecryptIndex_out, StringBuffer aErrorMsg) {
+ String decryptedMessage = null;
+
+ // sanity check
+ if(null == aErrorMsg) {
+ Log.e(LOG_TAG,"## decryptMessage(): invalid parameter - aErrorMsg=null");
+ } else {
+ aErrorMsg.setLength(0);
+ decryptedMessage = decryptMessageJni(aEncryptedMsg, aDecryptIndex_out, aErrorMsg, OlmManager.ENABLE_STRING_UTF8_SPECIFIC_CONVERSION);
+ }
return decryptedMessage;
}
- private native String decryptMessageJni(String aEncryptedMsg, DecryptIndex aDecryptIndex_out, boolean aIsUtf8ConversionRequired);
+ private native String decryptMessageJni(String aEncryptedMsg, DecryptIndex aDecryptIndex_out, StringBuffer aErrorMsg, boolean aIsUtf8ConversionRequired);
/**
diff --git a/java/android/OlmLibSdk/olm-sdk/src/main/jni/olm_inbound_group_session.cpp b/java/android/OlmLibSdk/olm-sdk/src/main/jni/olm_inbound_group_session.cpp
index e450a4c4d9c38ea5651932488b30f8b5702b7849..6d11b3807d4b697d0a963a1fdc2922773f42ddd7 100644
--- a/java/android/OlmLibSdk/olm-sdk/src/main/jni/olm_inbound_group_session.cpp
+++ b/java/android/OlmLibSdk/olm-sdk/src/main/jni/olm_inbound_group_session.cpp
@@ -180,7 +180,7 @@ JNIEXPORT jstring OLM_INBOUND_GROUP_SESSION_FUNC_DEF(sessionIdentifierJni)(JNIEn
}
-JNIEXPORT jstring OLM_INBOUND_GROUP_SESSION_FUNC_DEF(decryptMessageJni)(JNIEnv *env, jobject thiz, jstring aEncryptedMsg, jobject aDecryptIndex, jboolean aIsUtf8ConversionRequired)
+JNIEXPORT jstring OLM_INBOUND_GROUP_SESSION_FUNC_DEF(decryptMessageJni)(JNIEnv *env, jobject thiz, jstring aEncryptedMsg, jobject aDecryptIndex, jobject aErrorMsg, jboolean aIsUtf8ConversionRequired)
{
jstring decryptedMsgRetValue = 0;
OlmInboundGroupSession *sessionPtr = NULL;
@@ -190,6 +190,10 @@ JNIEXPORT jstring OLM_INBOUND_GROUP_SESSION_FUNC_DEF(decryptMessageJni)(JNIEnv *
uint32_t messageIndex = 0;
jclass indexObjJClass = 0;
jfieldID indexMsgFieldId;
+ jclass errorMsgJClass = 0;
+ jmethodID errorMsgMethodId = 0;
+ jstring errorJstring = 0;
+ const char *errorMsgPtr = NULL;
LOGD("## decryptMessageJni(): inbound group session IN");
@@ -205,6 +209,18 @@ JNIEXPORT jstring OLM_INBOUND_GROUP_SESSION_FUNC_DEF(decryptMessageJni)(JNIEnv *
{
LOGE(" ## decryptMessageJni(): failure - invalid index object");
}
+ else if(0 == aErrorMsg)
+ {
+ LOGE(" ## decryptMessageJni(): failure - invalid error object");
+ }
+ else if(0 == (errorMsgJClass = env->GetObjectClass(aErrorMsg)))
+ {
+ LOGE(" ## decryptMessageJni(): failure - unable to get error class");
+ }
+ else if(0 == (errorMsgMethodId = env->GetMethodID(errorMsgJClass, "append", "(Ljava/lang/String;)Ljava/lang/StringBuffer;")))
+ {
+ LOGE(" ## decryptMessageJni(): failure - unable to get error method ID");
+ }
else if(0 == (encryptedMsgPtr = env->GetStringUTFChars(aEncryptedMsg, 0)))
{
LOGE(" ## decryptMessageJni(): failure - encrypted message JNI allocation OOM");
@@ -238,7 +254,12 @@ JNIEXPORT jstring OLM_INBOUND_GROUP_SESSION_FUNC_DEF(decryptMessageJni)(JNIEnv *
encryptedMsgLength);
if(maxPlainTextLength == olm_error())
{
- LOGE(" ## decryptMessageJni(): failure - olm_group_decrypt_max_plaintext_length Msg=%s",(const char *)olm_inbound_group_session_last_error(sessionPtr));
+ errorMsgPtr = olm_inbound_group_session_last_error(sessionPtr);
+ LOGE(" ## decryptMessageJni(): failure - olm_group_decrypt_max_plaintext_length Msg=%s",errorMsgPtr);
+ if(0 != (errorJstring = env->NewStringUTF(errorMsgPtr)))
+ {
+ env->CallObjectMethod(aErrorMsg, errorMsgMethodId, errorJstring);
+ }
}
else
{
@@ -257,7 +278,13 @@ JNIEXPORT jstring OLM_INBOUND_GROUP_SESSION_FUNC_DEF(decryptMessageJni)(JNIEnv *
&messageIndex);
if(plaintextLength == olm_error())
{
- LOGE(" ## decryptMessageJni(): failure - olm_group_decrypt Msg=%s",(const char *)olm_inbound_group_session_last_error(sessionPtr));
+ errorMsgPtr = olm_inbound_group_session_last_error(sessionPtr);
+ LOGE(" ## decryptMessageJni(): failure - olm_group_decrypt Msg=%s",errorMsgPtr);
+
+ if(0 != (errorJstring = env->NewStringUTF(errorMsgPtr)))
+ {
+ env->CallObjectMethod(aErrorMsg, errorMsgMethodId, errorJstring);
+ }
}
else
{
diff --git a/java/android/OlmLibSdk/olm-sdk/src/main/jni/olm_inbound_group_session.h b/java/android/OlmLibSdk/olm-sdk/src/main/jni/olm_inbound_group_session.h
index 7d6fb5eacb2301e290b67026ead9e6bc211fe8f1..65ba6703c62bf16f4822caf81a86eb5f3457c53c 100644
--- a/java/android/OlmLibSdk/olm-sdk/src/main/jni/olm_inbound_group_session.h
+++ b/java/android/OlmLibSdk/olm-sdk/src/main/jni/olm_inbound_group_session.h
@@ -33,7 +33,7 @@ JNIEXPORT jlong OLM_INBOUND_GROUP_SESSION_FUNC_DEF(createNewSessionJni)(JNIEnv *
JNIEXPORT jint OLM_INBOUND_GROUP_SESSION_FUNC_DEF(initInboundGroupSessionWithSessionKeyJni)(JNIEnv *env, jobject thiz, jstring aSessionKey);
JNIEXPORT jstring OLM_INBOUND_GROUP_SESSION_FUNC_DEF(sessionIdentifierJni)(JNIEnv *env, jobject thiz);
-JNIEXPORT jstring OLM_INBOUND_GROUP_SESSION_FUNC_DEF(decryptMessageJni)(JNIEnv *env, jobject thiz, jstring aEncryptedMsg, jobject aDecryptIndex, jboolean aIsUtf8ConversionRequired);
+JNIEXPORT jstring OLM_INBOUND_GROUP_SESSION_FUNC_DEF(decryptMessageJni)(JNIEnv *env, jobject thiz, jstring aEncryptedMsg, jobject aDecryptIndex, jobject aErrorMsg, jboolean aIsUtf8ConversionRequired);
// serialization
JNIEXPORT jstring OLM_INBOUND_GROUP_SESSION_FUNC_DEF(serializeDataWithKeyJni)(JNIEnv *env, jobject thiz, jstring aKey, jobject aErrorMsg);