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Generate and retrieve fallback key functions added.

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This commit is contained in:
Onuray Sahin 2021-09-03 10:59:18 +03:00 committed by Hubert Chathi
parent 6a63a5bfa9
commit 06407aa08d
5 changed files with 202 additions and 5 deletions
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15
android/olm-sdk/src/androidTest/java/org/matrix/olm/OlmAccountTest.java
View file

@ -488,4 +488,19 @@ public class OlmAccountTest {
fail(e.getMessage());
}
}
@Test
public void test18GenerateFallbackKey() {
try {
OlmAccount account1 = new OlmAccount();
account1.generateFallbackKey();
Map<String, Map<String, String>> fallbackKeyMap = account1.fallbackKey();
assertNotNull(fallbackKeyMap);
assertEquals(1, fallbackKeyMap.size());
} catch (OlmException e) {
fail(e.getMessage());
}
}
}

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

@ -114,11 +114,11 @@ public class OlmAccount extends CommonSerializeUtils implements Serializable {
/**
* Return the identity keys (identity and fingerprint keys) in a dictionary.<br>
* Public API for {@link #identityKeysJni()}.<br>
* Ex:<tt>
* Ex:<code>
* {
* "curve25519":"Vam++zZPMqDQM6ANKpO/uAl5ViJSHxV9hd+b0/fwRAg",
* "ed25519":"+v8SOlOASFTMrX3MCKBM4iVnYoZ+JIjpNt1fi8Z9O2I"
* }</tt>
* }</code>
* @return identity keys dictionary if operation succeeds, null otherwise
* @exception OlmException the failure reason
*/
@ -195,14 +195,14 @@ public class OlmAccount extends CommonSerializeUtils implements Serializable {
/**
* Return the "one time keys" in a dictionary.<br>
* The number of "one time keys", is specified by {@link #generateOneTimeKeys(int)}<br>
* Ex:<tt>
* Ex:<code>
* { "curve25519":
* {
* "AAAABQ":"qefVZd8qvjOpsFzoKSAdfUnJVkIreyxWFlipCHjSQQg",
* "AAAABA":"/X8szMU+p+lsTnr56wKjaLgjTMQQkCk8EIWEAilZtQ8",
* "AAAAAw":"qxNxxFHzevFntaaPdT0fhhO7tc7pco4+xB/5VRG81hA",
* }
* }</tt><br>
* }</code><br>
* Public API for {@link #oneTimeKeysJni()}.<br>
* Note: these keys are to be published on the server.
* @return one time keys in string dictionary.
@ -234,7 +234,7 @@ public class OlmAccount extends CommonSerializeUtils implements Serializable {
/**
* Get the public parts of the unpublished "one time keys" for the account.<br>
* The returned data is a JSON-formatted object with the single property
* <tt>curve25519</tt>, which is itself an object mapping key id to
* <code>curve25519</code>, which is itself an object mapping key id to
* base64-encoded Curve25519 key.<br>
* @return byte array containing the one time keys or throw an exception if it fails
*/
@ -442,4 +442,55 @@ public class OlmAccount extends CommonSerializeUtils implements Serializable {
deserialize(aSerializedData, aKey);
}
/**
* Generates a new fallback key.
* @throws OlmException exception with a reason.
*/
public void generateFallbackKey() throws OlmException {
try {
generateFallbackKeyJni();
} catch (Exception e) {
throw new OlmException(OlmException.EXCEPTION_CODE_ACCOUNT_GENERATE_FALLBACK_KEY, e.getMessage());
}
}
private native void generateFallbackKeyJni();
/**
* Return the "fallback key" in a dictionary.<br>
* Ex:<code>
* { "curve25519":
* {
* "AAAABQ":"qefVZd8qvjOpsFzoKSAdfUnJVkIreyxWFlipCHjSQQg"
* }
* }</code><br>
* Public API for {@link #fallbackKeyJni()}.<br>
* Note: the key is to be published on the server.
* @return fallback key in string dictionary.
* @exception OlmException the failure reason
*/
public Map<String, Map<String, String>> fallbackKey() throws OlmException {
JSONObject fallbackKeyJsonObj = null;
byte[] fallbackKeyBuffer;
try {
fallbackKeyBuffer = fallbackKeyJni();
} catch (Exception e) {
throw new OlmException(OlmException.EXCEPTION_CODE_ACCOUNT_FALLBACK_KEY, e.getMessage());
}
if( null != fallbackKeyBuffer) {
try {
fallbackKeyJsonObj = new JSONObject(new String(fallbackKeyBuffer, "UTF-8"));
} catch (Exception e) {
Log.e(LOG_TAG, "## fallbackKey(): Exception - Msg=" + e.getMessage());
}
} else {
Log.e(LOG_TAG, "## fallbackKey(): Failure - identityKeysJni()=null");
}
return OlmUtility.toStringMapMap(fallbackKeyJsonObj);
}
private native byte[] fallbackKeyJni();
}

2
android/olm-sdk/src/main/java/org/matrix/olm/OlmException.java
View file

@ -35,6 +35,8 @@ public class OlmException extends IOException {
public static final int EXCEPTION_CODE_ACCOUNT_REMOVE_ONE_TIME_KEYS = 105;
public static final int EXCEPTION_CODE_ACCOUNT_MARK_ONE_KEYS_AS_PUBLISHED = 106;
public static final int EXCEPTION_CODE_ACCOUNT_SIGN_MESSAGE = 107;
public static final int EXCEPTION_CODE_ACCOUNT_GENERATE_FALLBACK_KEY = 108;
public static final int EXCEPTION_CODE_ACCOUNT_FALLBACK_KEY = 109;
public static final int EXCEPTION_CODE_CREATE_INBOUND_GROUP_SESSION = 200;
public static final int EXCEPTION_CODE_INIT_INBOUND_GROUP_SESSION = 201;

125
android/olm-sdk/src/main/jni/olm_account.cpp
View file

@ -442,6 +442,131 @@ JNIEXPORT void OLM_ACCOUNT_FUNC_DEF(markOneTimeKeysAsPublishedJni)(JNIEnv *env,
}
}
/**
* Generate "fallback key".
* An exception is thrown if the operation fails.
**/
JNIEXPORT void OLM_ACCOUNT_FUNC_DEF(generateFallbackKeyJni)(JNIEnv *env, jobject thiz)
{
const char* errorMessage = NULL;
OlmAccount *accountPtr = getAccountInstanceId(env, thiz);
if (!accountPtr)
{
LOGE("## generateFallbackKeyJni(): failure - invalid Account ptr");
errorMessage = "invalid Account ptr";
}
else
{
// keys memory allocation
size_t randomLength = olm_account_generate_fallback_key_random_length(accountPtr);
LOGD("## generateFallbackKeyJni(): randomLength=%lu", static_cast<long unsigned int>(randomLength));
uint8_t *randomBufferPtr = NULL;
if ((0 != randomLength) && !setRandomInBuffer(env, &randomBufferPtr, randomLength))
{
LOGE("## generateFallbackKeyJni(): failure - random buffer init");
errorMessage = "random buffer init";
}
else
{
LOGD("## generateFallbackKeyJni(): accountPtr =%p", accountPtr);
// retrieve key pairs in keysBytesPtr
size_t result = olm_account_generate_fallback_key(accountPtr, (void*)randomBufferPtr, randomLength);
if (result == olm_error())
{
errorMessage = olm_account_last_error(accountPtr);
LOGE("## generateFallbackKeyJni(): failure - error generating fallback keys Msg=%s", errorMessage);
}
else
{
LOGD("## generateFallbackKeyJni(): success - result=%lu", static_cast<long unsigned int>(result));
}
}
if (randomBufferPtr)
{
memset(randomBufferPtr, 0, randomLength);
free(randomBufferPtr);
}
}
if (errorMessage)
{
env->ThrowNew(env->FindClass("java/lang/Exception"), errorMessage);
}
}
/**
* Get "fallback key".<br>
* Return the public parts of the unpublished "fallback key" for the account
* @return a valid byte array if operation succeed, null otherwise
**/
JNIEXPORT jbyteArray OLM_ACCOUNT_FUNC_DEF(fallbackKeyJni)(JNIEnv *env, jobject thiz)
{
const char* errorMessage = NULL;
jbyteArray byteArrayRetValue = NULL;
OlmAccount* accountPtr = getAccountInstanceId(env, thiz);
LOGD("## fallbackKeyJni(): IN");
if (!accountPtr)
{
LOGE("## fallbackKeyJni(): failure - invalid Account ptr");
errorMessage = "invalid Account ptr";
}
else
{
// keys memory allocation
size_t keysLength = olm_account_fallback_key_length(accountPtr);
uint8_t *keysBytesPtr = (uint8_t *)malloc(keysLength*sizeof(uint8_t));
if (!keysBytesPtr)
{
LOGE("## fallbackKeyJni(): failure - fallback key OOM");
errorMessage = "fallback key OOM";
}
else
{
// retrieve key pairs in keysBytesPtr
size_t keysResult = olm_account_fallback_key(accountPtr, keysBytesPtr, keysLength);
if (keysResult == olm_error()) {
LOGE("## fallbackKeyJni(): failure - error getting fallback key Msg=%s",(const char *)olm_account_last_error(accountPtr));
errorMessage = (const char *)olm_account_last_error(accountPtr);
}
else
{
// allocate the byte array to be returned to java
byteArrayRetValue = env->NewByteArray(keysLength);
if (!byteArrayRetValue)
{
LOGE("## fallbackKeyJni(): failure - return byte array OOM");
errorMessage = "return byte array OOM";
}
else
{
env->SetByteArrayRegion(byteArrayRetValue, 0/*offset*/, keysLength, (const jbyte*)keysBytesPtr);
LOGD("## fallbackKeyJni(): success");
}
}
free(keysBytesPtr);
}
}
if (errorMessage)
{
env->ThrowNew(env->FindClass("java/lang/Exception"), errorMessage);
}
return byteArrayRetValue;
}
/**
* Sign a message with the ed25519 key (fingerprint) for this account.<br>
* The signed message is returned by the function.

4
android/olm-sdk/src/main/jni/olm_account.h
View file

@ -42,6 +42,10 @@ JNIEXPORT void OLM_ACCOUNT_FUNC_DEF(generateOneTimeKeysJni)(JNIEnv *env, jobject
JNIEXPORT void OLM_ACCOUNT_FUNC_DEF(removeOneTimeKeysJni)(JNIEnv *env, jobject thiz, jlong aNativeOlmSessionId);
JNIEXPORT void OLM_ACCOUNT_FUNC_DEF(markOneTimeKeysAsPublishedJni)(JNIEnv *env, jobject thiz);
// fallback keys
JNIEXPORT void OLM_ACCOUNT_FUNC_DEF(generateFallbackKeyJni)(JNIEnv *env, jobject thiz);
JNIEXPORT jbyteArray OLM_ACCOUNT_FUNC_DEF(fallbackKeyJni)(JNIEnv *env, jobject thiz);
// signing
JNIEXPORT jbyteArray OLM_ACCOUNT_FUNC_DEF(signMessageJni)(JNIEnv *env, jobject thiz, jbyteArray aMessage);