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https://git.wownero.com/wownero/wownero.git
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296 lines
7.5 KiB
C++
296 lines
7.5 KiB
C++
// Copyright (c) 2016-2019, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "message.h"
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#include "daemon_rpc_version.h"
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#include "serialization/json_object.h"
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#include "rapidjson/writer.h"
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#include "rapidjson/stringbuffer.h"
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namespace cryptonote
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{
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namespace rpc
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{
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const char* Message::STATUS_OK = "OK";
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const char* Message::STATUS_RETRY = "Retry";
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const char* Message::STATUS_FAILED = "Failed";
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const char* Message::STATUS_BAD_REQUEST = "Invalid request type";
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const char* Message::STATUS_BAD_JSON = "Malformed json";
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namespace
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{
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constexpr const char error_field[] = "error";
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constexpr const char id_field[] = "id";
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constexpr const char method_field[] = "method";
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constexpr const char params_field[] = "params";
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constexpr const char result_field[] = "result";
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}
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rapidjson::Value Message::toJson(rapidjson::Document& doc) const
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{
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rapidjson::Value val(rapidjson::kObjectType);
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auto& al = doc.GetAllocator();
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val.AddMember("status", rapidjson::StringRef(status.c_str()), al);
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val.AddMember("error_details", rapidjson::StringRef(error_details.c_str()), al);
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INSERT_INTO_JSON_OBJECT(val, doc, rpc_version, DAEMON_RPC_VERSION_ZMQ);
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return val;
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}
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void Message::fromJson(rapidjson::Value& val)
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{
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GET_FROM_JSON_OBJECT(val, status, status);
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GET_FROM_JSON_OBJECT(val, error_details, error_details);
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GET_FROM_JSON_OBJECT(val, rpc_version, rpc_version);
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}
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FullMessage::FullMessage(const std::string& request, Message* message)
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{
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doc.SetObject();
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doc.AddMember(method_field, rapidjson::StringRef(request.c_str()), doc.GetAllocator());
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doc.AddMember(params_field, message->toJson(doc), doc.GetAllocator());
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// required by JSON-RPC 2.0 spec
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doc.AddMember("jsonrpc", rapidjson::Value("2.0"), doc.GetAllocator());
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}
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FullMessage::FullMessage(Message* message)
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{
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doc.SetObject();
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// required by JSON-RPC 2.0 spec
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doc.AddMember("jsonrpc", "2.0", doc.GetAllocator());
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if (message->status == Message::STATUS_OK)
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{
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doc.AddMember(result_field, message->toJson(doc), doc.GetAllocator());
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}
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else
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{
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cryptonote::rpc::error err;
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err.error_str = message->status;
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err.message = message->error_details;
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INSERT_INTO_JSON_OBJECT(doc, doc, error, err);
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}
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}
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FullMessage::FullMessage(const std::string& json_string, bool request)
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{
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doc.Parse(json_string.c_str());
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if (doc.HasParseError() || !doc.IsObject())
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{
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throw cryptonote::json::PARSE_FAIL();
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}
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OBJECT_HAS_MEMBER_OR_THROW(doc, "jsonrpc")
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if (request)
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{
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OBJECT_HAS_MEMBER_OR_THROW(doc, method_field)
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OBJECT_HAS_MEMBER_OR_THROW(doc, params_field)
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}
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else
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{
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if (!doc.HasMember(result_field) && !doc.HasMember(error_field))
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{
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throw cryptonote::json::MISSING_KEY("error/result");
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}
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}
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}
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std::string FullMessage::getJson()
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{
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if (!doc.HasMember(id_field))
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{
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doc.AddMember(id_field, rapidjson::Value("unused"), doc.GetAllocator());
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}
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rapidjson::StringBuffer buf;
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rapidjson::Writer<rapidjson::StringBuffer> writer(buf);
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doc.Accept(writer);
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return std::string(buf.GetString(), buf.GetSize());
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}
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std::string FullMessage::getRequestType() const
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{
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OBJECT_HAS_MEMBER_OR_THROW(doc, method_field)
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return doc[method_field].GetString();
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}
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rapidjson::Value& FullMessage::getMessage()
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{
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if (doc.HasMember(params_field))
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{
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return doc[params_field];
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}
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else if (doc.HasMember(result_field))
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{
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return doc[result_field];
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}
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//else
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OBJECT_HAS_MEMBER_OR_THROW(doc, error_field)
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return doc[error_field];
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}
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rapidjson::Value FullMessage::getMessageCopy()
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{
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rapidjson::Value& val = getMessage();
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return rapidjson::Value(val, doc.GetAllocator());
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}
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rapidjson::Value& FullMessage::getID()
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{
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OBJECT_HAS_MEMBER_OR_THROW(doc, id_field)
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return doc[id_field];
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}
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void FullMessage::setID(rapidjson::Value& id)
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{
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auto itr = doc.FindMember(id_field);
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if (itr != doc.MemberEnd())
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{
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itr->value = id;
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}
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else
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{
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doc.AddMember(id_field, id, doc.GetAllocator());
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}
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}
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cryptonote::rpc::error FullMessage::getError()
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{
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cryptonote::rpc::error err;
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err.use = false;
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if (doc.HasMember(error_field))
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{
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GET_FROM_JSON_OBJECT(doc, err, error);
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err.use = true;
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}
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return err;
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}
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FullMessage FullMessage::requestMessage(const std::string& request, Message* message)
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{
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return FullMessage(request, message);
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}
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FullMessage FullMessage::requestMessage(const std::string& request, Message* message, rapidjson::Value& id)
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{
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auto mes = requestMessage(request, message);
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mes.setID(id);
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return mes;
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}
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FullMessage FullMessage::responseMessage(Message* message)
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{
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return FullMessage(message);
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}
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FullMessage FullMessage::responseMessage(Message* message, rapidjson::Value& id)
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{
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auto mes = responseMessage(message);
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mes.setID(id);
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return mes;
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}
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FullMessage* FullMessage::timeoutMessage()
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{
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auto *full_message = new FullMessage();
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auto& doc = full_message->doc;
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auto& al = full_message->doc.GetAllocator();
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doc.SetObject();
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// required by JSON-RPC 2.0 spec
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doc.AddMember("jsonrpc", "2.0", al);
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cryptonote::rpc::error err;
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err.error_str = "RPC request timed out.";
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INSERT_INTO_JSON_OBJECT(doc, doc, err, err);
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return full_message;
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}
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// convenience functions for bad input
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std::string BAD_REQUEST(const std::string& request)
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{
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Message fail;
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fail.status = Message::STATUS_BAD_REQUEST;
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fail.error_details = std::string("\"") + request + "\" is not a valid request.";
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FullMessage fail_response = FullMessage::responseMessage(&fail);
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return fail_response.getJson();
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}
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std::string BAD_REQUEST(const std::string& request, rapidjson::Value& id)
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{
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Message fail;
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fail.status = Message::STATUS_BAD_REQUEST;
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fail.error_details = std::string("\"") + request + "\" is not a valid request.";
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FullMessage fail_response = FullMessage::responseMessage(&fail, id);
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return fail_response.getJson();
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}
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std::string BAD_JSON(const std::string& error_details)
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{
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Message fail;
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fail.status = Message::STATUS_BAD_JSON;
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fail.error_details = error_details;
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FullMessage fail_response = FullMessage::responseMessage(&fail);
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return fail_response.getJson();
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}
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} // namespace rpc
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} // namespace cryptonote
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