[exim.git] / src / src / mime.h

/*************************************************
*     Exim - an Internet mail transport agent    *
*************************************************/

/* Copyright (c) Tom Kistner <tom@duncanthrax.net> 2004 */
/* License: GPL */

#ifdef WITH_CONTENT_SCAN

#define MIME_MAX_HEADER_SIZE 8192
#define MIME_MAX_LINE_LENGTH 32768

#define MBC_ATTACHMENT            0
#define MBC_COVERLETTER_ONESHOT   1
#define MBC_COVERLETTER_ALL       2

struct mime_boundary_context
{
  struct mime_boundary_context *parent;
  unsigned char *boundary;
  int context;
};

typedef struct mime_header {
  uschar *name;
  int    namelen;
  void   *value;
} mime_header;

static mime_header mime_header_list[] = {
  { US"content-type:", 13, &mime_content_type },
  { US"content-disposition:", 20, &mime_content_disposition },
  { US"content-transfer-encoding:", 26, &mime_content_transfer_encoding },
  { US"content-id:", 11, &mime_content_id },
  { US"content-description:", 20 , &mime_content_description }
};

static int mime_header_list_size = sizeof(mime_header_list)/sizeof(mime_header);


typedef struct mime_parameter {
  uschar *  name;
  int       namelen;
  uschar ** value;
} mime_parameter;

static mime_parameter mime_parameter_list[] = {
  { US"name=",     5, &mime_filename },
  { US"filename=", 9, &mime_filename },
  { US"charset=",  8, &mime_charset },
  { US"boundary=", 9, &mime_boundary }
};

static int mime_parameter_list_size = sizeof(mime_parameter_list)/sizeof(mime_parameter);


/* MIME Anomaly list */
#define MIME_ANOMALY_BROKEN_BASE64    2, "Broken BASE64 encoding detected"
#define MIME_ANOMALY_BROKEN_QP        1, "Broken Quoted-Printable encoding detected"


/* BASE64 decoder matrix */
static unsigned char mime_b64[256]={
/*   0 */  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,
/*  16 */  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,
/*  32 */  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,   62,  128,  128,  128,   63,
/*  48 */   52,   53,   54,   55,   56,   57,   58,   59,   60,   61,  128,  128,  128,  255,  128,  128,
/*  64 */  128,    0,    1,    2,    3,    4,    5,    6,    7,    8,    9,   10,   11,   12,   13,   14,
/*  80 */   15,   16,   17,   18,   19,   20,   21,   22,   23,   24,   25,  128,  128,  128,  128,  128,
/*  96 */  128,   26,   27,   28,   29,   30,   31,   32,   33,   34,   35,   36,   37,   38,   39,   40,
/* 112 */   41,   42,   43,   44,   45,   46,   47,   48,   49,   50,   51,  128,  128,  128,  128,  128,
/* 128 */  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,
/* 144 */  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,
/* 160 */  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,
/* 176 */  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,
/* 192 */  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,
/* 208 */  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,
/* 224 */  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,
/* 240 */  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128,  128
};

#endif
Commit	Line	Data
8523533c TK	1	/*************************************************
	2	* Exim - an Internet mail transport agent *
	3	*************************************************/
	4
	5	/* Copyright (c) Tom Kistner <tom@duncanthrax.net> 2004 */
	6	/* License: GPL */
	7
	8	#ifdef WITH_CONTENT_SCAN
	9
	10	#define MIME_MAX_HEADER_SIZE 8192
	11	#define MIME_MAX_LINE_LENGTH 32768
	12
	13	#define MBC_ATTACHMENT 0
	14	#define MBC_COVERLETTER_ONESHOT 1
	15	#define MBC_COVERLETTER_ALL 2
	16
	17	struct mime_boundary_context
	18	{
	19	struct mime_boundary_context *parent;
	20	unsigned char *boundary;
	21	int context;
	22	};
	23
	24	typedef struct mime_header {
	25	uschar *name;
	26	int namelen;
	27	void *value;
	28	} mime_header;
	29
	30	static mime_header mime_header_list[] = {
	31	{ US"content-type:", 13, &mime_content_type },
	32	{ US"content-disposition:", 20, &mime_content_disposition },
	33	{ US"content-transfer-encoding:", 26, &mime_content_transfer_encoding },
	34	{ US"content-id:", 11, &mime_content_id },
	35	{ US"content-description:", 20 , &mime_content_description }
	36	};
	37
	38	static int mime_header_list_size = sizeof(mime_header_list)/sizeof(mime_header);
	39
	40
	41
	42	typedef struct mime_parameter {
93cad488 JH	43	uschar * name;
	44	int namelen;
	45	uschar ** value;
8523533c TK	46	} mime_parameter;
	47
	48	static mime_parameter mime_parameter_list[] = {
93cad488	49	{ US"name=", 5, &mime_filename },
8523533c	50	{ US"filename=", 9, &mime_filename },
93cad488	51	{ US"charset=", 8, &mime_charset },
8523533c TK	52	{ US"boundary=", 9, &mime_boundary }
	53	};
	54
	55	static int mime_parameter_list_size = sizeof(mime_parameter_list)/sizeof(mime_parameter);
	56
	57
	58	/* MIME Anomaly list */
	59	#define MIME_ANOMALY_BROKEN_BASE64 2, "Broken BASE64 encoding detected"
	60	#define MIME_ANOMALY_BROKEN_QP 1, "Broken Quoted-Printable encoding detected"
	61
	62
	63	/* BASE64 decoder matrix */
	64	static unsigned char mime_b64[256]={
	65	/* 0 */ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
8e669ac1	66	/* 16 */ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
8523533c TK	67	/* 32 */ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 62, 128, 128, 128, 63,
	68	/* 48 */ 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 128, 128, 128, 255, 128, 128,
	69	/* 64 */ 128, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
	70	/* 80 */ 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 128, 128, 128, 128, 128,
	71	/* 96 */ 128, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
	72	/* 112 */ 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 128, 128, 128, 128, 128,
	73	/* 128 */ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
	74	/* 144 */ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
	75	/* 160 */ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
	76	/* 176 */ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
	77	/* 192 */ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
	78	/* 208 */ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
	79	/* 224 */ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
8e669ac1	80	/* 240 */ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128
8523533c TK	81	};
	82
	83	#endif