Allow wallet2.h to run in WebAssembly

- Add abstract_http_client.h which http_client.h extends.
- Replace simple_http_client with abstract_http_client in wallet2,
message_store, message_transporter, and node_rpc_proxy.
- Import and export wallet data in wallet2.
- Use #if defined __EMSCRIPTEN__ directives to skip incompatible code.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/wallet/message_transporter.h b/src/wallet/message_transporter.h
index 28c099d87..84a2e9bae 100644
--- a/src/wallet/message_transporter.h
+++ b/src/wallet/message_transporter.h
@@ -34,9 +34,9 @@
 #include "cryptonote_basic/cryptonote_basic.h"
 #include "net/http_server_impl_base.h"
 #include "net/http_client.h"
+#include "net/abstract_http_client.h"
 #include "common/util.h"
 #include "wipeable_string.h"
-#include "serialization/keyvalue_serialization.h"
 #include <vector>
 
 namespace mms
@@ -83,7 +83,7 @@ typedef epee::misc_utils::struct_init<transport_message_t> transport_message;
 class message_transporter
 {
 public:
-  message_transporter();
+  message_transporter(std::unique_ptr<epee::net_utils::http::abstract_http_client> http_client);
   void set_options(const std::string &bitmessage_address, const epee::wipeable_string &bitmessage_login);
   bool send_message(const transport_message &message);
   bool receive_messages(const std::vector<std::string> &destination_transport_addresses,
@@ -94,7 +94,7 @@ public:
   bool delete_transport_address(const std::string &transport_address);
 
 private:
-  epee::net_utils::http::http_simple_client m_http_client;
+  const std::unique_ptr<epee::net_utils::http::abstract_http_client> m_http_client;
   std::string m_bitmessage_url;
   epee::wipeable_string m_bitmessage_login;
   std::atomic<bool> m_run;