- Update Unit tests for OlmAccount

 - new file olm_utility.cpp to have a stand alone function to initialize/alloc a random buffer
 - new class OlmMessage
 - complete OlmSession API with encryptMessage()
 - comments review
 - OlmAccount unit tests are green
 - new gradle to compile the shared lib according to debug mode

1 files changed, 60 insertions, 0 deletions

diff --git a/java/android/OlmLibSdk/olm-sdk/src/main/jni/olm_utility.cpp b/java/android/OlmLibSdk/olm-sdk/src/main/jni/olm_utility.cpp
new file mode 100644
index 0000000..9abd228
--- /dev/null
+++ b/java/android/OlmLibSdk/olm-sdk/src/main/jni/olm_utility.cpp
@@ -0,0 +1,60 @@
+/**
+ * Created by pedrocon on 06/10/2016.
+ */
+/*
+ * Copyright 2016 OpenMarket Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "olm_jni.h"
+#include "olm_utility.h"
+
+/**
+* Init a buffer with a given number of random values.
+* @param aBuffer2Ptr the buffer to be initialized
+* @param aRandomSize the number of random values to apply
+* @return true if operation succeed, false otherwise
+**/
+bool setRandomInBuffer(uint8_t **aBuffer2Ptr, size_t aRandomSize)
+{
+    bool retCode = false;
+    if(NULL == aBuffer2Ptr)
+    {
+        LOGD("## setRandomInBuffer(): failure - aBuffer=NULL");
+    }
+    else if(0 == aRandomSize)
+    {
+        LOGD("## setRandomInBuffer(): failure - random size=0");
+    }
+    else if(NULL == (*aBuffer2Ptr = (uint8_t*)malloc(aRandomSize*sizeof(uint8_t))))
+    {
+        LOGD("## setRandomInBuffer(): failure - alloc mem OOM");
+    }
+    else
+    {
+        LOGD("## setRandomInBuffer(): randomSize=%ld",aRandomSize);
+
+        srand(time(NULL)); // init seed
+        for(size_t i=0;i<aRandomSize;i++)
+        {
+            (*aBuffer2Ptr)[i] = (uint8_t)(rand()%ACCOUNT_CREATION_RANDOM_MODULO);
+
+            // TODO debug purpose - remove asap
+            LOGD("## setRandomInBuffer(): randomBuffPtr[%ld]=%d",i, (*aBuffer2Ptr)[i]);
+        }
+
+        retCode = true;
+    }
+    return retCode;
+}
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