1 files changed, 125 insertions, 0 deletions
diff --git a/src/device_trezor/trezor/messages_map.cpp b/src/device_trezor/trezor/messages_map.cpp
new file mode 100644
index 000000000..b0d1aa254
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+++ b/src/device_trezor/trezor/messages_map.cpp
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+// Copyright (c) 2017-2018, The Monero Project
+//
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+//
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+
+#include "messages_map.hpp"
+#include "messages/messages.pb.h"
+#include "messages/messages-common.pb.h"
+#include "messages/messages-management.pb.h"
+#include "messages/messages-monero.pb.h"
+
+using namespace std;
+using namespace hw::trezor;
+
+namespace hw{
+namespace trezor
+{
+
+  const char * TYPE_PREFIX = "MessageType_";
+  const char * PACKAGES[] = {
+      "hw.trezor.messages.",
+      "hw.trezor.messages.common.",
+      "hw.trezor.messages.management.",
+      "hw.trezor.messages.monero."
+  };
+
+  google::protobuf::Message * MessageMapper::get_message(int wire_number) {
+    return MessageMapper::get_message(static_cast<messages::MessageType>(wire_number));
+  }
+
+  google::protobuf::Message * MessageMapper::get_message(messages::MessageType wire_number) {
+    const string &messageTypeName = hw::trezor::messages::MessageType_Name(wire_number);
+    if (messageTypeName.empty()) {
+      throw exc::EncodingException(std::string("Message descriptor not found: ") + std::to_string(wire_number));
+    }
+
+    string messageName = messageTypeName.substr(strlen(TYPE_PREFIX));
+    return MessageMapper::get_message(messageName);
+  }
+
+  google::protobuf::Message * MessageMapper::get_message(const std::string & msg_name) {
+    // Each package instantiation so lookup works
+    hw::trezor::messages::common::Success::default_instance();
+    hw::trezor::messages::management::Cancel::default_instance();
+    hw::trezor::messages::monero::MoneroGetAddress::default_instance();
+
+    google::protobuf::Descriptor const * desc = nullptr;
+    for(const string &text : PACKAGES){
+      desc = google::protobuf::DescriptorPool::generated_pool()
+          ->FindMessageTypeByName(text + msg_name);
+      if (desc != nullptr){
+        break;
+      }
+    }
+
+    if (desc == nullptr){
+      throw exc::EncodingException(std::string("Message not found: ") + msg_name);
+    }
+
+    google::protobuf::Message* message =
+        google::protobuf::MessageFactory::generated_factory()
+            ->GetPrototype(desc)->New();
+
+    return message;
+
+//    // CODEGEN way, fast
+//    switch(wire_number){
+//      case 501:
+//        return new messages::monero::MoneroTransactionSignRequest();
+//      default:
+//        throw std::runtime_error("not implemented");
+//    }
+//
+//    // CODEGEN message -> number: specification
+//    //    messages::MessageType get_message_wire_number(const messages::monero::MoneroTransactionSignRequest * msg) { return 501; }
+//    //    messages::MessageType get_message_wire_number(const messages::management::ping * msg)
+//
+  }
+
+  messages::MessageType MessageMapper::get_message_wire_number(const google::protobuf::Message * msg){
+    return MessageMapper::get_message_wire_number(msg->GetDescriptor()->name());
+  }
+
+  messages::MessageType MessageMapper::get_message_wire_number(const google::protobuf::Message & msg){
+    return MessageMapper::get_message_wire_number(msg.GetDescriptor()->name());
+  }
+
+  messages::MessageType MessageMapper::get_message_wire_number(const std::string & msg_name){
+    string enumMessageName = std::string(TYPE_PREFIX) + msg_name;
+
+    messages::MessageType res;
+    bool r = hw::trezor::messages::MessageType_Parse(enumMessageName, &res);
+    if (!r){
+      throw exc::EncodingException(std::string("Message ") + msg_name + " not found");
+    }
+
+    return res;
+  }
+
+}
+}