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/* <!-- copyright */
/*
* aria2 - The high speed download utility
*
* Copyright (C) 2009 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 "RpcMethod.h"
#include "DownloadEngine.h"
#include "LogFactory.h"
#include "RecoverableException.h"
#include "message.h"
#include "OptionParser.h"
#include "OptionHandler.h"
#include "Option.h"
#include "array_fun.h"
#include "download_helper.h"
#include "RpcRequest.h"
#include "RpcResponse.h"
#include "prefs.h"
#include "fmt.h"
#include "DlAbortEx.h"
namespace aria2 {
namespace rpc {
RpcMethod::RpcMethod()
: optionParser_(OptionParser::getInstance())
{}
RpcMethod::~RpcMethod() {}
SharedHandle<ValueBase> RpcMethod::createErrorResponse
(const Exception& e, const RpcRequest& req)
{
SharedHandle<Dict> params = Dict::g();
params->put((req.jsonRpc ? "code" : "faultCode"), Integer::g(1));
params->put((req.jsonRpc ? "message" : "faultString"), std::string(e.what()));
return params;
}
RpcResponse RpcMethod::execute
(const RpcRequest& req, DownloadEngine* e)
{
try {
return RpcResponse(0, process(req, e), req.id);
} catch(RecoverableException& ex) {
A2_LOG_DEBUG_EX(EX_EXCEPTION_CAUGHT, ex);
return RpcResponse(1, createErrorResponse(ex, req), req.id);
}
}
namespace {
template<typename InputIterator>
void gatherOption
(InputIterator first, InputIterator last,
const std::set<std::string>& allowedOptions,
const SharedHandle<Option>& option,
const SharedHandle<OptionParser>& optionParser)
{
for(; first != last; ++first) {
const std::string& optionName = (*first).first;
if(allowedOptions.count(optionName) == 0) {
throw DL_ABORT_EX
(fmt("%s option cannot be used in this context.",
optionName.c_str()));
} else {
SharedHandle<OptionHandler> optionHandler =
optionParser->findByName(optionName);
if(!optionHandler) {
throw DL_ABORT_EX
(fmt("We don't know how to deal with %s option",
optionName.c_str()));
}
const String* opval = asString((*first).second);
if(opval) {
optionHandler->parse(*option.get(), opval->s());
} else {
// header and index-out option can take array as value
const List* oplist = asList((*first).second);
if(oplist &&
(optionName == PREF_HEADER || optionName == PREF_INDEX_OUT)) {
for(List::ValueType::const_iterator argiter = oplist->begin(),
eoi = oplist->end(); argiter != eoi; ++argiter) {
const String* opval = asString(*argiter);
if(opval) {
optionHandler->parse(*option.get(), opval->s());
}
}
}
}
}
}
}
} // namespace
void RpcMethod::gatherRequestOption
(const SharedHandle<Option>& option, const Dict* optionsDict)
{
if(optionsDict) {
gatherOption(optionsDict->begin(), optionsDict->end(),
listRequestOptions(),
option, optionParser_);
}
}
namespace {
// Copy option in the range [optNameFirst, optNameLast) from src to
// dest.
template<typename InputIterator>
void applyOption(InputIterator optNameFirst,
InputIterator optNameLast,
Option* dest,
Option* src)
{
for(; optNameFirst != optNameLast; ++optNameFirst) {
if(src->defined(*optNameFirst)) {
dest->put(*optNameFirst, src->get(*optNameFirst));
}
}
}
} // namespace
const std::set<std::string>& listChangeableOptions()
{
static const std::string OPTIONS[] = {
PREF_BT_MAX_PEERS,
PREF_BT_REQUEST_PEER_SPEED_LIMIT,
PREF_MAX_DOWNLOAD_LIMIT,
PREF_MAX_UPLOAD_LIMIT
};
static std::set<std::string> options(vbegin(OPTIONS), vend(OPTIONS));
return options;
}
void RpcMethod::gatherChangeableOption
(const SharedHandle<Option>& option, const Dict* optionsDict)
{
if(optionsDict) {
gatherOption(optionsDict->begin(), optionsDict->end(),
listChangeableOptions(),
option, optionParser_);
}
}
void RpcMethod::applyChangeableOption(Option* dest, Option* src) const
{
applyOption(listChangeableOptions().begin(), listChangeableOptions().end(),
dest, src);
}
const std::set<std::string>& listChangeableGlobalOptions()
{
static const std::string OPTIONS[] = {
PREF_MAX_OVERALL_UPLOAD_LIMIT,
PREF_MAX_OVERALL_DOWNLOAD_LIMIT,
PREF_MAX_CONCURRENT_DOWNLOADS,
PREF_LOG,
PREF_LOG_LEVEL
};
static std::set<std::string> options(vbegin(OPTIONS), vend(OPTIONS));
return options;
}
void RpcMethod::gatherChangeableGlobalOption
(const SharedHandle<Option>& option, const Dict* optionsDict)
{
if(optionsDict) {
gatherOption(optionsDict->begin(), optionsDict->end(),
listChangeableGlobalOptions(),
option, optionParser_);
}
}
void RpcMethod::applyChangeableGlobalOption(Option* dest, Option* src) const
{
applyOption(listChangeableGlobalOptions().begin(),
listChangeableGlobalOptions().end(),
dest, src);
}
} // namespace rpc
} // namespace aria2
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