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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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.
*
*/
#define FORBIDDEN_SYMBOL_ALLOW_ALL
#include <curl/curl.h>
#include "backends/networking/curl/connectionmanager.h"
#include "backends/networking/curl/networkreadstream.h"
#include "backends/networking/curl/sessionrequest.h"
#include "common/debug.h"
#include "common/json.h"
namespace Networking {
SessionRequest::SessionRequest(Common::String url, DataCallback cb, ErrorCallback ecb):
CurlRequest(cb, ecb, url), _contentsStream(DisposeAfterUse::YES),
_buffer(new byte[CURL_SESSION_REQUEST_BUFFER_SIZE]), _text(nullptr),
_started(false), _complete(false), _success(false) {
// automatically go under ConnMan control so nobody would be able to leak the memory
// but, we don't need it to be working just yet
_state = PAUSED;
ConnMan.addRequest(this);
}
SessionRequest::~SessionRequest() {
delete[] _buffer;
}
bool SessionRequest::reuseStream() {
if (!_stream) {
return false;
}
if (_bytesBuffer)
return _stream->reuse(_url.c_str(), _headersList, _bytesBuffer, _bytesBufferSize, _uploading, _usingPatch, true);
if (!_formFields.empty() || !_formFiles.empty())
return _stream->reuse(_url.c_str(), _headersList, _formFields, _formFiles);
return _stream->reuse(_url.c_str(), _headersList, _postFields, _uploading, _usingPatch);
}
char *SessionRequest::getPreparedContents() {
//write one more byte in the end
byte zero[1] = {0};
_contentsStream.write(zero, 1);
//replace all "bad" bytes with '.' character
byte *result = _contentsStream.getData();
uint32 size = _contentsStream.size();
//make it zero-terminated string
result[size - 1] = '\0';
return (char *)result;
}
void SessionRequest::finishError(ErrorResponse error) {
_complete = true;
_success = false;
CurlRequest::finishError(error);
}
void SessionRequest::finishSuccess() {
_state = PAUSED;
_complete = true;
_success = true;
if (_callback)
(*_callback)(DataResponse(this, text()));
}
void SessionRequest::start() {
if (_state != PAUSED || _started) {
warning("Can't start() SessionRequest as it is already started");
return;
}
_state = PROCESSING;
_started = true;
}
void SessionRequest::startAndWait() {
start();
wait();
}
void SessionRequest::reuse(Common::String url, DataCallback cb, ErrorCallback ecb) {
_url = url;
delete _callback;
delete _errorCallback;
_callback = cb;
_errorCallback = ecb;
restart();
}
void SessionRequest::handle() {
if (!_stream) _stream = makeStream();
if (_stream) {
uint32 readBytes = _stream->read(_buffer, CURL_SESSION_REQUEST_BUFFER_SIZE);
if (readBytes != 0)
if (_contentsStream.write(_buffer, readBytes) != readBytes)
warning("SessionRequest: unable to write all the bytes into MemoryWriteStreamDynamic");
if (_stream->eos()) {
finishSuccess();
}
}
}
void SessionRequest::restart() {
if (_stream) {
bool deleteStream = true;
if (_keepAlive && reuseStream()) {
deleteStream = false;
}
if (deleteStream) {
delete _stream;
_stream = nullptr;
}
}
_contentsStream = Common::MemoryWriteStreamDynamic(DisposeAfterUse::YES);
_text = nullptr;
_complete = false;
_success = false;
_started = false;
//with no stream available next handle() will create another one
}
void SessionRequest::close() {
_state = FINISHED;
}
bool SessionRequest::complete() {
return _complete;
}
bool SessionRequest::success() {
return _success;
}
char *SessionRequest::text() {
if (_text == nullptr)
_text = getPreparedContents();
return _text;
}
Common::JSONValue *SessionRequest::json() {
return Common::JSON::parse(text());
}
} // End of namespace Networking
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