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signMessage : the utf8 conversion is done on Java side.

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This commit is contained in:
ylecollen 2016-12-21 18:37:34 +01:00
parent e17eb69048
commit c3eb050be2
3 changed files with 46 additions and 37 deletions
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20
java/android/OlmLibSdk/olm-sdk/src/main/java/org/matrix/olm/OlmAccount.java
View file

@ -383,9 +383,25 @@ public class OlmAccount extends CommonSerializeUtils implements Serializable {
* @return the signed message if operation succeed, null otherwise
*/
public String signMessage(String aMessage) {
return signMessageJni(aMessage);
if (null == aMessage) {
return null;
}
byte[] utf8String = null;
try {
utf8String = aMessage.getBytes("UTF-8");
} catch (Exception e) {
Log.d(LOG_TAG,"## signMessage(): failed ="+e.getMessage());
}
if (null == utf8String) {
return null;
}
return signMessageJni(utf8String);
}
private native String signMessageJni(String aMessage);
private native String signMessageJni(byte[] aMessage);
/**
* Return the number of unreleased OlmAccount instances.<br>

61
java/android/OlmLibSdk/olm-sdk/src/main/jni/olm_account.cpp
View file

@ -393,7 +393,7 @@ JNIEXPORT jint OLM_ACCOUNT_FUNC_DEF(markOneTimeKeysAsPublishedJni)(JNIEnv *env,
* @param aMessage message to sign
* @return the signed message, null otherwise
**/
JNIEXPORT jstring OLM_ACCOUNT_FUNC_DEF(signMessageJni)(JNIEnv *env, jobject thiz, jstring aMessage)
JNIEXPORT jstring OLM_ACCOUNT_FUNC_DEF(signMessageJni)(JNIEnv *env, jobject thiz, jbyteArray aMessage)
{
OlmAccount* accountPtr = NULL;
size_t signatureLength;
@ -411,48 +411,41 @@ JNIEXPORT jstring OLM_ACCOUNT_FUNC_DEF(signMessageJni)(JNIEnv *env, jobject thiz
}
else
{
// convert message from JAVA to C string
const char* messageToSign = env->GetStringUTFChars(aMessage, 0);
if(NULL == messageToSign)
int messageLength = env->GetArrayLength(aMessage);
unsigned char* messageToSign = new unsigned char[messageLength];
env->GetByteArrayRegion(aMessage, 0, messageLength, reinterpret_cast<jbyte*>(messageToSign));
// signature memory allocation
signatureLength = olm_account_signature_length(accountPtr);
if(NULL == (signedMsgPtr = (void*)malloc((signatureLength+1)*sizeof(uint8_t))))
{
LOGE("## signMessageJni(): failure - message JNI allocation OOM");
LOGE("## signMessageJni(): failure - signature allocation OOM");
}
else
{
int messageLength = env->GetStringUTFLength(aMessage);
// signature memory allocation
signatureLength = olm_account_signature_length(accountPtr);
if(NULL == (signedMsgPtr = (void*)malloc((signatureLength+1)*sizeof(uint8_t))))
{ // sign message
resultSign = olm_account_sign(accountPtr,
(void*)messageToSign,
(size_t)messageLength,
signedMsgPtr,
signatureLength);
if(resultSign == olm_error())
{
LOGE("## signMessageJni(): failure - signature allocation OOM");
LOGE("## signMessageJni(): failure - error signing message Msg=%s",(const char *)olm_account_last_error(accountPtr));
}
else
{ // sign message
resultSign = olm_account_sign(accountPtr,
(void*)messageToSign,
(size_t)messageLength,
signedMsgPtr,
signatureLength);
if(resultSign == olm_error())
{
LOGE("## signMessageJni(): failure - error signing message Msg=%s",(const char *)olm_account_last_error(accountPtr));
}
else
{
// info: signatureLength is always equal to resultSign
(static_cast<char*>(signedMsgPtr))[signatureLength] = static_cast<char>('\0');
// convert to jstring
signedMsgRetValue = env->NewStringUTF((const char*)signedMsgPtr); // UTF8
LOGD("## signMessageJni(): success - retCode=%lu signatureLength=%lu", static_cast<long unsigned int>(resultSign), static_cast<long unsigned int>(signatureLength));
}
free(signedMsgPtr);
{
// info: signatureLength is always equal to resultSign
(static_cast<char*>(signedMsgPtr))[signatureLength] = static_cast<char>('\0');
// convert to jstring
signedMsgRetValue = env->NewStringUTF((const char*)signedMsgPtr); // UTF8
LOGD("## signMessageJni(): success - retCode=%lu signatureLength=%lu", static_cast<long unsigned int>(resultSign), static_cast<long unsigned int>(signatureLength));
}
// release messageToSign
env->ReleaseStringUTFChars(aMessage, messageToSign);
free(signedMsgPtr);
}
// release messageToSign
free(messageToSign);
}
return signedMsgRetValue;

2
java/android/OlmLibSdk/olm-sdk/src/main/jni/olm_account.h
View file

@ -43,7 +43,7 @@ JNIEXPORT jint OLM_ACCOUNT_FUNC_DEF(removeOneTimeKeysForSessionJni)(JNIEnv *env,
JNIEXPORT jint OLM_ACCOUNT_FUNC_DEF(markOneTimeKeysAsPublishedJni)(JNIEnv *env, jobject thiz);
// signing
JNIEXPORT jstring OLM_ACCOUNT_FUNC_DEF(signMessageJni)(JNIEnv *env, jobject thiz, jstring aMessage);
JNIEXPORT jstring OLM_ACCOUNT_FUNC_DEF(signMessageJni)(JNIEnv *env, jobject thiz, jbyteArray aMessage);
// serialization
JNIEXPORT jstring OLM_ACCOUNT_FUNC_DEF(serializeDataWithKeyJni)(JNIEnv *env, jobject thiz, jstring aKey, jobject aErrorMsg);