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This file is part of libhttpserver

This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Lesser General Public

License as published by the Free Software Foundation; either

version 2.1 of the License, or (at your option) any later version.

This library 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

Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public

License along with this library; if not, write to the Free Software

Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301

USA

#include "httpserver/file_response.hpp"

#include <fcntl.h>

#include <microhttpd.h>

#include <stddef.h>

#include <sys/types.h>

#include <sys/stat.h>

#include <unistd.h>

#include <iosfwd>

struct MHD_Response;

namespace httpserver {

MHD_Response* file_response::get_raw_response() {

struct stat sb;

// Deny everything but regular files

if (stat(filename.c_str(), &sb) == 0) {

if (!S_ISREG(sb.st_mode)) return nullptr;

} else {

return nullptr;

}

int fd = open(filename.c_str(), O_RDONLY);

if (fd == -1) return nullptr;

off_t size = lseek(fd, 0, SEEK_END);

if (size == (off_t) -1) return nullptr;

if (size) {

return MHD_create_response_from_fd(size, fd);

} else {

return MHD_create_response_from_buffer(0, nullptr, MHD_RESPMEM_PERSISTENT);

}

} // namespace httpserver