/*
 * Copyright (C) 1996-2000,2010 Michael R. Elkins <me@mutt.org>
 *
 *     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 2 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, write to the Free Software
 *     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

/* Content-Type */
enum
{
  TYPEOTHER,
  TYPEAUDIO,
  TYPEAPPLICATION,
  TYPEIMAGE,
  TYPEMESSAGE,
  TYPEMODEL,
  TYPEMULTIPART,
  TYPETEXT,
  TYPEVIDEO,
  TYPEANY
};

/* Content-Transfer-Encoding */
enum
{
  ENCOTHER,
  ENC7BIT,
  ENC8BIT,
  ENCQUOTEDPRINTABLE,
  ENCBASE64,
  ENCBINARY,
  ENCUUENCODED
};

/* Content-Disposition values */
enum
{
  DISPINLINE,
  DISPATTACH,
  DISPFORMDATA,
  DISPNONE /* no preferred disposition */
};

/* Some limits to mitigate stack overflow and denial of service attacks */
#define MUTT_MIME_MAX_DEPTH  50
#define MUTT_MIME_MAX_PARTS  5000


/* MIME encoding/decoding global vars */

#ifndef _SENDLIB_C
extern const int Index_hex[];
extern const int Index_64[];
extern const char B64Chars[];
extern const char B64Chars_urlsafe[];
#endif

#define hexval(c) Index_hex[(unsigned int)(c)]
#define base64val(c) Index_64[(unsigned int)(c)]

#define is_multipart(x)                                                 \
  ((x)->type == TYPEMULTIPART  ||                                       \
  ((x)->type == TYPEMESSAGE &&                                          \
   (!ascii_strcasecmp((x)->subtype, "rfc822") ||                        \
    !ascii_strcasecmp((x)->subtype, "news")   ||                        \
    !ascii_strcasecmp((x)->subtype, "global"))))

extern const char *BodyTypes[];
extern const char *BodyEncodings[];

#define TYPE(X) ((X->type == TYPEOTHER) && (X->xtype != NULL) ? X->xtype : BodyTypes[(X->type)])
#define ENCODING(X) BodyEncodings[(X)]

/* other MIME-related global variables */
#ifndef _SENDLIB_C
extern char MimeSpecials[];
#endif
