120 lines
4.5 KiB
C++
120 lines
4.5 KiB
C++
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#pragma once
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#include <fc/io/json.hpp>
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#include <fc/network/http/connection.hpp>
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#include <fc/network/http/server.hpp>
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#include <fc/reflect/variant.hpp>
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#include <fc/rpc/api_connection.hpp>
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#include <fc/rpc/state.hpp>
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namespace fc { namespace rpc {
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class http_api_connection : public api_connection
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{
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public:
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~http_api_connection()
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{
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}
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http_api_connection()
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{
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_rpc_state.add_method( "call", [this]( const variants& args ) -> variant {
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FC_ASSERT( args.size() == 3 && args[2].is_array() );
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return this->receive_call( args[0].as_uint64(),
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args[1].as_string(),
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args[2].get_array() );
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});
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_rpc_state.add_method( "notice", [this]( const variants& args ) -> variant {
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FC_ASSERT( args.size() == 2 && args[1].is_array() );
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this->receive_notice( args[0].as_uint64(), args[1].get_array() );
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return variant();
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});
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_rpc_state.add_method( "callback", [this]( const variants& args ) -> variant {
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FC_ASSERT( args.size() == 2 && args[1].is_array() );
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this->receive_callback( args[0].as_uint64(), args[1].get_array() );
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return variant();
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});
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_rpc_state.on_unhandled( [&]( const std::string& method_name, const variants& args ){
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return this->receive_call( 0, method_name, args );
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});
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}
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virtual variant send_call( api_id_type api_id,
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string method_name,
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variants args = variants() ) override
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{
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// HTTP has no way to do this, so do nothing
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return variant();
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}
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virtual variant send_callback( uint64_t callback_id, variants args = variants() ) override
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{
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// HTTP has no way to do this, so do nothing
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return variant();
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}
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virtual void send_notice( uint64_t callback_id, variants args = variants() ) override
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{
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// HTTP has no way to do this, so do nothing
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return;
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}
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void on_request( const fc::http::request& req, const fc::http::server::response& resp )
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{
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// this must be called by outside HTTP server's on_request method
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std::string resp_body;
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http::reply::status_code resp_status;
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try
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{
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resp.add_header( "Content-Type", "application/json" );
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std::string req_body( req.body.begin(), req.body.end() );
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auto var = fc::json::from_string( req_body );
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const auto& var_obj = var.get_object();
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if( var_obj.contains( "method" ) )
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{
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auto call = var.as<fc::rpc::request>();
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try
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{
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auto result = _rpc_state.local_call( call.method, call.params );
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resp_body = fc::json::to_string( fc::rpc::response( *call.id, result ) );
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resp_status = http::reply::OK;
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}
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catch ( const fc::exception& e )
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{
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resp_body = fc::json::to_string( fc::rpc::response( *call.id, error_object{ 1, e.to_detail_string(), fc::variant(e)} ) );
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resp_status = http::reply::InternalServerError;
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}
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}
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else
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{
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resp_status = http::reply::BadRequest;
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resp_body = "";
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}
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}
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catch ( const fc::exception& e )
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{
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resp_status = http::reply::InternalServerError;
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resp_body = "";
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wdump((e.to_detail_string()));
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}
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try
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{
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resp.set_status( resp_status );
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resp.set_length( resp_body.length() );
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resp.write( resp_body.c_str(), resp_body.length() );
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}
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catch( const fc::exception& e )
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{
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wdump((e.to_detail_string()));
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}
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return;
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}
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fc::rpc::state _rpc_state;
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};
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} } // namespace fc::rpc
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