Method readData

Core/CodedInputDataCrypt.cpp:243–272

}

void CodedInputDataCrypt::readData(KeyValueHolderCrypt &kvHolder) {
    int32_t size = this->readRawVarint32();
    if (size < 0) {
        throw length_error("InvalidProtocolBuffer negativeSize");
    }

    auto s_size = static_cast<size_t>(size);
    if (s_size <= m_size - m_position) {
        if (KeyValueHolderCrypt::isValueStoredAsOffset(s_size)) {
            kvHolder.type = KeyValueHolderType_Offset;
            kvHolder.valueSize = static_cast<uint32_t>(s_size);
            kvHolder.pbKeyValueSize =
                static_cast<uint8_t>(pbRawVarint32Size(kvHolder.valueSize) + pbRawVarint32Size(kvHolder.keySize));

            size_t rollbackSize = kvHolder.pbKeyValueSize + kvHolder.keySize;
            statusBeforeDecrypt(rollbackSize, kvHolder.cryptStatus);

            skipBytes(s_size);
        } else {
            consumeBytes(s_size);

            kvHolder.type = KeyValueHolderType_Direct;
            kvHolder = KeyValueHolderCrypt(m_decryptBuffer + m_decryptBufferPosition, s_size);
            m_decryptBufferPosition += s_size;
            m_position += s_size;
        }
    } else {
        throw out_of_range("InvalidProtocolBuffer truncatedMessage");
    }
}

} // namespace mmkv