/usr/include/dspam/decode.h is in libdspam7-dev 3.10.1+dfsg-4ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 | /* $Id: decode.h,v 1.21 2011/06/28 00:13:48 sbajic Exp $ */
/*
DSPAM
COPYRIGHT (C) 2002-2011 DSPAM PROJECT
This program 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.
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 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/>.
*/
#include <stdio.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include "nodetree.h"
#include "buffer.h"
#ifndef _DECODE_H
#define _DECODE_H
/*
* _ds_header_field
*
* DESCRIPTION
* a single header/value paid from a message block
*/
typedef struct _ds_header_field
{
char *heading;
char *data;
char *original_data; /* prior to decoding */
char *concatenated_data; /* multi-line */
} *ds_header_t;
/*
* _ds_message_part
*
* DESCRIPTION
* a message block (or part) within a message. in a single-part message,
* there will be only one block (block 0). in a multipart message, each part
* will be separated into a separte block. the message block consists of:
* - a dynamic array of headers (nodetree of ds_header_t's) for the block
* - body data (NULL if there is no body)
* - block encoding
* - block media type information
* - boundary and terminating boundary information
*/
typedef struct _ds_message_part
{
struct nt * headers;
buffer * body;
buffer * original_signed_body;
char * boundary;
char * terminating_boundary;
int encoding;
int original_encoding;
int media_type;
int media_subtype;
int content_disposition;
} *ds_message_part_t;
/*
* _ds_message
*
* DESCRIPTION
* the actual message structure, comprised of an array of message blocks.
* in a non-multipart email, there will only be one message block (block 0).
* in multipart emails, however, the first message block will represent the
* header (with a NULL body_data or something like "This is a multi-part
* message"), and each additional block within the email will be given its
* own message_part structure with its own headers, boundary, etc.
*
* embedded multipart messages are not realized by the structure, but can
* be identified by examining the media type or headers.
*/
typedef struct _ds_message
{
struct nt * components;
int protect;
} *ds_message_t;
/* adapter dependent functions */
char * _ds_decode_base64 (const char *body);
char * _ds_decode_quoted (const char *body);
/* Adapter-independent functions */
ds_message_t _ds_actualize_message (const char *message);
char * _ds_assemble_message (ds_message_t message, const char *newline);
char * _ds_find_header (ds_message_t message, const char *heading);
ds_message_part_t _ds_create_message_part (void);
ds_header_t _ds_create_header_field (const char *heading);
void _ds_analyze_header
(ds_message_part_t block, ds_header_t header, struct nt *boundaries);
void _ds_destroy_message (ds_message_t message);
void _ds_destroy_headers (ds_message_part_t block);
void _ds_destroy_block (ds_message_part_t block);
char * _ds_decode_block (ds_message_part_t block);
int _ds_encode_block (ds_message_part_t block, int encoding);
char * _ds_encode_base64 (const char *body);
char * _ds_encode_quoted (const char *body);
char * _ds_decode_hex8bit (const char *body);
int _ds_decode_headers (ds_message_part_t block);
int _ds_push_boundary (struct nt *stack, const char *boundary);
int _ds_match_boundary (struct nt *stack, const char *buff);
int _ds_extract_boundary (char *buf, size_t size, char *data);
char * _ds_pop_boundary (struct nt *stack);
char * _ds_strip_html (const char *html);
int _ds_hex2dec (unsigned char hex);
/* Encoding values */
#define EN_7BIT 0x00
#define EN_8BIT 0x01
#define EN_QUOTED_PRINTABLE 0x02
#define EN_BASE64 0x03
#define EN_BINARY 0x04
#define EN_UNKNOWN 0xFE
#define EN_OTHER 0xFF
/* Media types which are relevant to DSPAM */
#define MT_TEXT 0x00
#define MT_MULTIPART 0x01
#define MT_MESSAGE 0x02
#define MT_APPLICATION 0x03
#define MT_UNKNOWN 0xFE
#define MT_OTHER 0xFF
/* Media subtypes which are relevant to DSPAM */
#define MST_PLAIN 0x00
#define MST_HTML 0x01
#define MST_MIXED 0x02
#define MST_ALTERNATIVE 0x03
#define MST_RFC822 0x04
#define MST_DSPAM_SIGNATURE 0x05
#define MST_SIGNED 0x06
#define MST_INOCULATION 0x07
#define MST_ENCRYPTED 0x08
#define MST_UNKNOWN 0xFE
#define MST_OTHER 0xFF
/* Part Content-Dispositions */
#define PCD_INLINE 0x00
#define PCD_ATTACHMENT 0x01
#define PCD_UNKNOWN 0xFE
#define PCD_OTHER 0xFF
/* Block position; used when analyzing a message */
#define BP_HEADER 0x00
#define BP_BODY 0x01
#endif /* _DECODE_H */
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