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/*
* MIME type/conversion database definitions for CUPS.
*
* Copyright 2007-2013 by Apple Inc.
* Copyright 1997-2007 by Easy Software Products, all rights reserved.
*
* Licensed under Apache License v2.0. See the file "LICENSE" for more information.
*/
#ifndef _CUPS_MIME_H_
# define _CUPS_MIME_H_
# include <cups/array.h>
# include <cups/ipp.h>
# include <cups/file.h>
# include <regex.h>
/*
* C++ magic...
*/
# ifdef __cplusplus
extern "C" {
# endif /* __cplusplus */
/*
* Constants...
*/
# define MIME_MAX_SUPER 16 /* Maximum size of supertype name */
# define MIME_MAX_TYPE IPP_MAX_NAME /* Maximum size of type name */
# define MIME_MAX_FILTER 256 /* Maximum size of filter pathname */
# define MIME_MAX_BUFFER 4096 /* Maximum size of file buffer */
/*
* Types/structures...
*/
typedef enum
{
MIME_MAGIC_NOP, /* No operation */
MIME_MAGIC_AND, /* Logical AND of all children */
MIME_MAGIC_OR, /* Logical OR of all children */
MIME_MAGIC_MATCH, /* Filename match */
MIME_MAGIC_ASCII, /* ASCII characters in range */
MIME_MAGIC_PRINTABLE, /* Printable characters (32-255) in range */
MIME_MAGIC_STRING, /* String matches */
MIME_MAGIC_CHAR, /* Character/byte matches */
MIME_MAGIC_SHORT, /* Short/16-bit word matches */
MIME_MAGIC_INT, /* Integer/32-bit word matches */
MIME_MAGIC_LOCALE, /* Current locale matches string */
MIME_MAGIC_CONTAINS, /* File contains a string */
MIME_MAGIC_ISTRING, /* Case-insensitive string matches */
MIME_MAGIC_REGEX /* Regular expression matches */
} mime_op_t;
typedef struct _mime_magic_s /**** MIME Magic Data ****/
{
struct _mime_magic_s *prev, /* Previous rule */
*next, /* Next rule */
*parent, /* Parent rules */
*child; /* Child rules */
short op, /* Operation code (see above) */
invert; /* Invert the result */
int offset, /* Offset in file */
region, /* Region length */
length; /* Length of data */
union
{
char matchv[64]; /* Match value */
char localev[64]; /* Locale value */
char stringv[64]; /* String value */
unsigned char charv; /* Byte value */
unsigned short shortv; /* Short value */
unsigned intv; /* Integer value */
regex_t rev; /* Regular expression value */
} value;
} mime_magic_t;
typedef struct _mime_type_s /**** MIME Type Data ****/
{
mime_magic_t *rules; /* Rules used to detect this type */
int priority; /* Priority of this type */
char super[MIME_MAX_SUPER], /* Super-type name ("image", "application", etc.) */
type[MIME_MAX_TYPE]; /* Type name ("png", "postscript", etc.) */
} mime_type_t;
typedef struct _mime_filter_s /**** MIME Conversion Filter Data ****/
{
mime_type_t *src, /* Source type */
*dst; /* Destination type */
int cost; /* Relative cost */
char filter[MIME_MAX_FILTER];/* Filter program to use */
size_t maxsize; /* Maximum file size for this filter */
} mime_filter_t;
typedef void (*mime_error_cb_t)(void *ctx, const char *message);
typedef struct _mime_s /**** MIME Database ****/
{
cups_array_t *types; /* File types */
cups_array_t *filters; /* Type conversion filters */
cups_array_t *srcs; /* Filters sorted by source type */
mime_error_cb_t error_cb; /* Error message callback */
void *error_ctx; /* Pointer for callback */
} mime_t;
/*
* Functions...
*/
extern void mimeDelete(mime_t *mime);
extern mime_t *mimeNew(void) _CUPS_API_1_5;
extern mime_t *mimeLoad(const char *pathname, const char *filterpath);
extern mime_t *mimeLoadFilters(mime_t *mime, const char *pathname,
const char *filterpath);
extern mime_t *mimeLoadTypes(mime_t *mime, const char *pathname);
extern mime_type_t *mimeAddType(mime_t *mime, const char *super,
const char *type);
extern int mimeAddTypeRule(mime_type_t *mt, const char *rule);
extern void mimeDeleteType(mime_t *mime, mime_type_t *mt);
extern mime_type_t *mimeFileType(mime_t *mime, const char *pathname,
const char *filename, int *compression);
extern mime_type_t *mimeFirstType(mime_t *mime);
extern mime_type_t *mimeNextType(mime_t *mime);
extern int mimeNumTypes(mime_t *mime);
extern mime_type_t *mimeType(mime_t *mime, const char *super,
const char *type);
extern mime_filter_t *mimeAddFilter(mime_t *mime, mime_type_t *src,
mime_type_t *dst, int cost,
const char *filter);
extern void mimeDeleteFilter(mime_t *mime, mime_filter_t *filter);
extern cups_array_t *mimeFilter(mime_t *mime, mime_type_t *src,
mime_type_t *dst, int *cost);
extern cups_array_t *mimeFilter2(mime_t *mime, mime_type_t *src,
size_t srcsize, mime_type_t *dst,
int *cost);
extern mime_filter_t *mimeFilterLookup(mime_t *mime, mime_type_t *src,
mime_type_t *dst);
extern mime_filter_t *mimeFirstFilter(mime_t *mime);
extern mime_filter_t *mimeNextFilter(mime_t *mime);
extern int mimeNumFilters(mime_t *mime);
extern void mimeSetErrorCallback(mime_t *mime, mime_error_cb_t cb,
void *context) _CUPS_API_1_5;
# ifdef __cplusplus
}
# endif /* __cplusplus */
#endif /* !_CUPS_MIME_H_ */
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