netsurf/content/mimesniff.h
John Mark Bell 6807fa854d Sniff content types where appropriate.
We never sniff for CSS, nor for non-page artefacts (e.g. treeview icons)

svn path=/trunk/netsurf/; revision=12707
2011-09-04 06:28:09 +00:00

55 lines
1.8 KiB
C

/*
* Copyright 2011 John-Mark Bell <jmb@netsurf-browser.org>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf 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; version 2 of the License.
*
* NetSurf 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/>.
*/
/** \file
* MIME type sniffer (interface)
*/
#ifndef NETSURF_CONTENT_MIMESNIFF_H_
#define NETSURF_CONTENT_MIMESNIFF_H_
#include <stdbool.h>
#include <libwapcaplet/libwapcaplet.h>
#include "utils/errors.h"
struct llcache_handle;
/**
* Compute the effective MIME type for an object using the sniffing
* algorithm described in draft-abarth-mime-sniff-06.
*
* \param handle Source data handle to sniff
* \param data First data chunk, or NULL
* \param len Length of \a data, in bytes
* \param sniff_allowed Whether MIME type sniffing is allowed
* \param effective_type Location to receive computed type
* \return NSERROR_OK on success,
* NSERROR_NEED_DATA iff \a data is NULL and data is needed
* NSERROR_NOT_FOUND if sniffing is prohibited and no
* Content-Type header was found
*/
nserror mimesniff_compute_effective_type(struct llcache_handle *handle,
const uint8_t *data, size_t len, bool sniff_allowed,
lwc_string **effective_type);
nserror mimesniff_init(void);
void mimesniff_fini(void);
#endif