aria2/src/rpc_helper.cc

109 lines
3.8 KiB
C++

/* <!-- copyright */
/*
* aria2 - The high speed download utility
*
* Copyright (C) 2011 Tatsuhiro Tsujikawa
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the
* OpenSSL library under certain conditions as described in each
* individual source file, and distribute linked combinations
* including the two.
* You must obey the GNU General Public License in all respects
* for all of the code used other than OpenSSL. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you
* do not wish to do so, delete this exception statement from your
* version. If you delete this exception statement from all source
* files in the program, then also delete it here.
*/
/* copyright --> */
#include "rpc_helper.h"
#include "XmlParser.h"
#include "RpcRequest.h"
#include "XmlRpcRequestParserStateMachine.h"
#include "message.h"
#include "DlAbortEx.h"
#include "DownloadEngine.h"
#include "RpcMethod.h"
#include "RpcResponse.h"
#include "RpcMethodFactory.h"
#include "LogFactory.h"
#include "fmt.h"
namespace aria2 {
namespace rpc {
#ifdef ENABLE_XML_RPC
RpcRequest xmlParseMemory(const char* xml, size_t size)
{
XmlRpcRequestParserStateMachine psm;
if(xml::XmlParser(&psm).parseFinal(xml, size) < 0) {
throw DL_ABORT_EX(MSG_CANNOT_PARSE_XML_RPC_REQUEST);
}
std::unique_ptr<List> params;
if(downcast<List>(psm.getCurrentFrameValue())) {
params.reset(static_cast<List*>(psm.popCurrentFrameValue().release()));
} else {
params = List::g();
}
return {psm.getMethodName(), std::move(params)};
}
#endif // ENABLE_XML_RPC
RpcResponse createJsonRpcErrorResponse(int code,
const std::string& msg,
std::unique_ptr<ValueBase> id)
{
auto params = Dict::g();
params->put("code", Integer::g(code));
params->put("message", msg);
return rpc::RpcResponse{code, std::move(params), std::move(id)};
}
RpcResponse processJsonRpcRequest(Dict* jsondict, DownloadEngine* e)
{
auto id = jsondict->popValue("id");
if(!id) {
return createJsonRpcErrorResponse(-32600, "Invalid Request.", Null::g());
}
const String* methodName = downcast<String>(jsondict->get("method"));
if(!methodName) {
return createJsonRpcErrorResponse(-32600, "Invalid Request.",
std::move(id));
}
std::unique_ptr<List> params;
auto tempParams = jsondict->popValue("params");
if(downcast<List>(tempParams)) {
params.reset(static_cast<List*>(tempParams.release()));
} else if(!tempParams) {
params = List::g();
} else {
// TODO No support for Named params
return createJsonRpcErrorResponse(-32602, "Invalid params.",
std::move(id));
}
A2_LOG_INFO(fmt("Executing RPC method %s", methodName->s().c_str()));
return getMethod(methodName->s())->execute
({methodName->s(), std::move(params), std::move(id), true}, e);
}
} // namespace rpc
} // namespace aria2