asset.c 2.03 KB
/**
 * \file
 *
 * \author	Georg Hopp
 *
 * \copyright
 * Copyright (C) 2012  Georg Hopp
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */

#include <stdio.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>

#include "class.h"
#include "interface/class.h"

#include "http/response.h"
#include "http/message.h"
#include "http/header.h"


HttpResponse
httpResponseAsset(const char * fname, const char * mime, const char * match)
{
	struct tm *  tmp;
	char         etag[200];
	char         mtime[200];
	char         clen[200];
	struct stat  st;
	HttpResponse response;
	HttpMessage  message;
	int          handle;

	handle = open(fname, O_RDONLY);
	fstat(handle, &st);

	tmp = localtime(&(st.st_mtime));
	strftime(etag, sizeof(etag), "%s", tmp);
	strftime(mtime, sizeof(mtime), "%a, %d %b %Y %T %Z", tmp);

	if (0 == strcmp(etag, match)) {
		return httpResponse304(mime, etag, mtime);
	}

	response = new(HttpResponse, "HTTP/1.1", 200, "OK");
	message  = (HttpMessage)response;

	message->type   = HTTP_MESSAGE_PIPED;
	message->handle = handle;
	message->nbody  = st.st_size;

	sprintf(clen, "%d", message->nbody);

	httpHeaderAdd(&(message->header),
			new(HttpHeader, "Content-Type", mime));
	httpHeaderAdd(&(message->header),
			new(HttpHeader, "Content-Length", clen));
	httpHeaderAdd(&(message->header),
			new(HttpHeader, "ETag", etag));
	httpHeaderAdd(&(message->header),
			new(HttpHeader, "Last-Modified", mtime));

	return response;
}

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