scummvm/backends/networking/curl/session.cpp

86 lines
2.4 KiB
C++

/* 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 "backends/networking/curl/session.h"
namespace Networking {
Session::Session(Common::String prefix):
_prefix(prefix), _request(nullptr) {}
Session::~Session() {
close();
}
static Common::String constructUrl(Common::String prefix, Common::String url) {
// check url prefix
if (!prefix.empty()) {
if (url.contains("://")) {
if (url.size() < prefix.size() || url.find(prefix) != 0) {
warning("Session: given URL does not match the prefix!\n\t%s\n\t%s", url.c_str(), prefix.c_str());
return "";
}
} else {
// if no schema given, just append <url> to <_prefix>
Common::String newUrl = prefix;
if (newUrl.lastChar() != '/' && (url.size() > 0 && url.firstChar() != '/'))
newUrl += "/";
newUrl += url;
url = newUrl;
}
}
return url;
}
SessionRequest *Session::get(Common::String url, Common::String localFile, DataCallback cb, ErrorCallback ecb, bool binary) {
url = constructUrl(_prefix, url);
if (url.empty())
return nullptr;
// check if request has finished (ready to be replaced)
if (_request) {
if (!_request->complete()) {
warning("Session: can't reuse Request that is being processed");
return nullptr;
}
}
if (!_request) {
_request = new SessionRequest(url, localFile, cb, ecb, binary); // automatically added to ConnMan
_request->connectionKeepAlive();
} else {
_request->reuse(url, localFile, cb, ecb, binary);
}
return _request;
}
void Session::close() {
if (_request)
_request->close();
}
} // End of namespace Networking