public void testParseData() throws IOException, StorageFileException {
long indexFree = 25L;
long indexConversation = 13L;
int version = 17;
byte[] dataPlain = new byte[Storage.CHUNK_SIZE - 4 - Encryption.ENCRYPTION_OVERHEAD];
System.arraycopy(
LowLevel.getBytesUnsignedInt(indexFree),
0,
dataPlain,
Storage.CHUNK_SIZE - 4 - Encryption.ENCRYPTION_OVERHEAD - 8,
4);
System.arraycopy(
LowLevel.getBytesUnsignedInt(indexConversation),
0,
dataPlain,
Storage.CHUNK_SIZE - 4 - Encryption.ENCRYPTION_OVERHEAD - 4,
4);
byte[] dataEncrypted =
Encryption.encryptSymmetric(dataPlain, Encryption.retreiveEncryptionKey());
byte[] dataAll = new byte[Storage.CHUNK_SIZE];
System.arraycopy(dataEncrypted, 0, dataAll, 4, Storage.CHUNK_SIZE - 4);
// wrong header (SMS)
dataAll[0] = 0x53; // S
dataAll[1] = 0x53; // S
dataAll[2] = 0x53; // S
try {
// inject it in the file
Storage.getDatabase().setEntry(0, dataAll);
Header.forceClearCache();
Header.getHeader();
assertTrue(false);
} catch (StorageFileException ex) {
}
// fixed, version set
dataAll[1] = 0x4D; // M
dataAll[3] = (byte) version;
Storage.getDatabase().setEntry(0, dataAll);
Header.forceClearCache();
Header header = null;
try {
header = Header.getHeader();
assertEquals(indexFree, header.getIndexEmpty());
assertEquals(indexConversation, header.getIndexConversations());
assertEquals(version, header.getVersion());
} catch (StorageFileException ex) {
assertTrue(false);
}
}
public void testCreateData() throws StorageFileException, IOException, WrongKeyException {
long indexFree = 25L;
long indexConversation = 13L;
int version = 32;
Header header = Header.createHeader();
header.setIndexEmpty(indexFree);
header.setIndexConversations(indexConversation);
header.setVersion(version);
header.saveToFile();
byte[] dataAll = Storage.getDatabase().getEntry(0);
// chunk length
assertEquals(dataAll.length, Storage.CHUNK_SIZE);
// plain header
assertEquals(dataAll[0], (byte) 0x53); // S
assertEquals(dataAll[1], (byte) 0x4D); // M
assertEquals(dataAll[2], (byte) 0x53); // S
assertEquals(dataAll[3], (byte) version); // Version
// decrypt the encoded part
ByteBuffer buf = ByteBuffer.allocate(Storage.CHUNK_SIZE - 4);
buf.put(dataAll, 4, Storage.CHUNK_SIZE - 4);
byte[] dataPlain = Encryption.decryptSymmetric(buf.array(), Encryption.retreiveEncryptionKey());
// check the indices
assertEquals(
LowLevel.getUnsignedInt(
dataPlain, Storage.CHUNK_SIZE - 4 - Encryption.ENCRYPTION_OVERHEAD - 8),
indexFree);
assertEquals(
LowLevel.getUnsignedInt(
dataPlain, Storage.CHUNK_SIZE - 4 - Encryption.ENCRYPTION_OVERHEAD - 4),
indexConversation);
}