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/*
This file is part of GNUnet
Copyright (C) 2022 GNUnet e.V.
GNUnet is free software: you can redistribute it and/or modify it
under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
GNUnet 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
Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
SPDX-License-Identifier: AGPL3.0-or-later
*/
/**
* @author Martin Schanzenbach
*
* @file
* libextractor compatibility insanity helper header
*
* @{
*/
#ifndef GNUNET_EXTRACTOR_COMPAT_H
#define GNUNET_EXTRACTOR_COMPAT_H
#ifdef __cplusplus
extern "C"
{
#if 0 /* keep Emacsens' auto-indent happy */
}
#endif
#endif
#if HAVE_EXTRACTOR_H
#include <extractor.h>
#else
/* definitions from extractor.h we need for the build */
/**
* Enumeration defining various sources of keywords. See also
* http://dublincore.org/documents/1998/09/dces/
*/
enum EXTRACTOR_MetaType
{
EXTRACTOR_METATYPE_RESERVED = 0,
EXTRACTOR_METATYPE_MIMETYPE = 1,
EXTRACTOR_METATYPE_FILENAME = 2,
EXTRACTOR_METATYPE_COMMENT = 3,
EXTRACTOR_METATYPE_TITLE = 4,
EXTRACTOR_METATYPE_BOOK_TITLE = 5,
EXTRACTOR_METATYPE_JOURNAL_NAME = 8,
EXTRACTOR_METATYPE_AUTHOR_NAME = 13,
EXTRACTOR_METATYPE_PUBLICATION_DATE = 24,
EXTRACTOR_METATYPE_URL = 29,
EXTRACTOR_METATYPE_URI = 30,
EXTRACTOR_METATYPE_ISRC = 31,
EXTRACTOR_METATYPE_UNKNOWN = 45,
EXTRACTOR_METATYPE_DESCRIPTION = 46,
EXTRACTOR_METATYPE_KEYWORDS = 49,
EXTRACTOR_METATYPE_SUBJECT = 52,
EXTRACTOR_METATYPE_PACKAGE_NAME = 69,
EXTRACTOR_METATYPE_THUMBNAIL = 114,
EXTRACTOR_METATYPE_ALBUM = 129,
EXTRACTOR_METATYPE_ARTIST = 130,
EXTRACTOR_METATYPE_ORIGINAL_TITLE = 162,
EXTRACTOR_METATYPE_GNUNET_FULL_DATA = 174,
EXTRACTOR_METATYPE_GNUNET_ORIGINAL_FILENAME = 180,
};
/**
* Format in which the extracted meta data is presented.
*/
enum EXTRACTOR_MetaFormat
{
/**
* Format is unknown.
*/
EXTRACTOR_METAFORMAT_UNKNOWN = 0,
/**
* 0-terminated, UTF-8 encoded string. "data_len"
* is strlen(data)+1.
*/
EXTRACTOR_METAFORMAT_UTF8 = 1,
/**
* Some kind of binary format, see given Mime type.
*/
EXTRACTOR_METAFORMAT_BINARY = 2,
/**
* 0-terminated string. The specific encoding is unknown.
* "data_len" is strlen (data)+1.
*/
EXTRACTOR_METAFORMAT_C_STRING = 3
};
/**
* Type of a function that libextractor calls for each
* meta data item found.
*
* @param cls closure (user-defined)
* @param plugin_name name of the plugin that produced this value;
* special values can be used (e.g. '<zlib>' for zlib being
* used in the main libextractor library and yielding
* meta data).
* @param type libextractor-type describing the meta data
* @param format basic format information about @a data
* @param data_mime_type mime-type of @a data (not of the original file);
* can be NULL (if mime-type is not known)
* @param data actual meta-data found
* @param data_len number of bytes in @a data
* @return 0 to continue extracting, 1 to abort
*/
typedef int (*EXTRACTOR_MetaDataProcessor) (void *cls,
const char *plugin_name,
enum EXTRACTOR_MetaType type,
enum EXTRACTOR_MetaFormat format,
const char *data_mime_type,
const char *data,
size_t data_len);
#endif
#ifndef EXTRACTOR_METATYPE_GNUNET_ORIGINAL_FILENAME
/* hack for LE < 0.6.3 */
#define EXTRACTOR_METATYPE_GNUNET_ORIGINAL_FILENAME 180
#endif
#if 0 /* keep Emacsens' auto-indent happy */
{
#endif
#ifdef __cplusplus
}
#endif
#endif
/** @} */ /* end of group */
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