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
|
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Authors: Jeffrey Stedfast <fejj@ximian.com>
*
* Copyright 2001 Ximian, Inc. (www.ximian.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "camel-pgp-mime.h"
#include "camel-mime-message.h"
/**
* camel_pgp_mime_is_rfc2015_signed:
* @mime_part: MIME part
*
* Checks that this part is a multipart/signed part following the
* rfc2015 and/or rfc3156 PGP/MIME specifications.
*
* Returns %TRUE if this looks to be a valid PGP/MIME multipart/signed
* part or %FALSE otherwise.
**/
gboolean
camel_pgp_mime_is_rfc2015_signed (CamelMimePart *mime_part)
{
CamelDataWrapper *wrapper;
CamelMultipart *mp;
CamelMimePart *part;
CamelContentType *type;
#ifdef ENABLE_PEDANTIC_PGPMIME
const char *param, *micalg;
#endif
int nparts;
/* check that we have a multipart/signed */
type = camel_mime_part_get_content_type (mime_part);
if (!header_content_type_is (type, "multipart", "signed"))
return FALSE;
#ifdef ENABLE_PEDANTIC_PGPMIME
/* check that we have a protocol param with the value: "application/pgp-signature" */
param = header_content_type_param (type, "protocol");
if (!param || g_strcasecmp (param, "application/pgp-signature"))
return FALSE;
/* check that we have a micalg parameter */
micalg = header_content_type_param (type, "micalg");
if (!micalg)
return FALSE;
#endif /* ENABLE_PEDANTIC_PGPMIME */
/* check that we have exactly 2 subparts */
wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (mime_part));
mp = CAMEL_MULTIPART (wrapper);
nparts = camel_multipart_get_number (mp);
if (nparts != 2)
return FALSE;
/* The first part may be of any type except for
* application/pgp-signature - check it. */
part = camel_multipart_get_part (mp, 0);
type = camel_mime_part_get_content_type (part);
if (header_content_type_is (type, "application", "pgp-signature"))
return FALSE;
/* The second part should be application/pgp-signature. */
part = camel_multipart_get_part (mp, 1);
type = camel_mime_part_get_content_type (part);
if (!header_content_type_is (type, "application", "pgp-signature"))
return FALSE;
return TRUE;
}
/**
* camel_pgp_mime_is_rfc2015_encrypted:
* @mime_part: MIME part
*
* Checks that this part is a multipart/encrypted part following the
* rfc2015 and/or rfc3156 PGP/MIME specifications.
*
* Returns %TRUE if this looks to be a valid PGP/MIME
* multipart/encrypted part or %FALSE otherwise.
**/
gboolean
camel_pgp_mime_is_rfc2015_encrypted (CamelMimePart *mime_part)
{
CamelDataWrapper *wrapper;
CamelMultipart *mp;
CamelMimePart *part;
CamelContentType *type;
#ifdef ENABLE_PEDANTIC_PGPMIME
const char *param;
#endif
int nparts;
/* check that we have a multipart/encrypted */
type = camel_mime_part_get_content_type (mime_part);
if (!header_content_type_is (type, "multipart", "encrypted"))
return FALSE;
#ifdef ENABLE_PEDANTIC_PGPMIME
/* check that we have a protocol param with the value: "application/pgp-encrypted" */
param = header_content_type_param (type, "protocol");
if (!param || g_strcasecmp (param, "application/pgp-encrypted"))
return FALSE;
#endif /* ENABLE_PEDANTIC_PGPMIME */
/* check that we have at least 2 subparts */
wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (mime_part));
mp = CAMEL_MULTIPART (wrapper);
nparts = camel_multipart_get_number (mp);
if (nparts < 2)
return FALSE;
/* The first part should be application/pgp-encrypted */
part = camel_multipart_get_part (mp, 0);
type = camel_mime_part_get_content_type (part);
if (!header_content_type_is (type, "application", "pgp-encrypted"))
return FALSE;
/* The second part should be application/octet-stream - this
is the one we care most about */
part = camel_multipart_get_part (mp, 1);
type = camel_mime_part_get_content_type (part);
if (!header_content_type_is (type, "application", "octet-stream"))
return FALSE;
return TRUE;
}
|
