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
|
/*
* e-mail-parser-application-xpkcs7mime.c
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) version 3.
*
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with the program; if not, see <http://www.gnu.org/licenses/>
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <glib-object.h>
#include <glib/gi18n-lib.h>
#include <em-format/e-mail-parser-extension.h>
#include <em-format/e-mail-parser.h>
#include <em-format/e-mail-part-utils.h>
#include <e-util/e-util.h>
#include <camel/camel.h>
#include <string.h>
typedef EMailParserExtension EMailParserApplicationSMIME;
typedef EMailParserExtensionClass EMailParserApplicationSMIMEClass;
GType e_mail_parser_application_smime_get_type (void);
G_DEFINE_TYPE (
EMailParserApplicationSMIME,
e_mail_parser_application_smime,
E_TYPE_MAIL_PARSER_EXTENSION)
static const gchar *parser_mime_types[] = {
"application/xpkcs7mime",
"application/x-pkcs7-mime",
"application/pkcs7-mime",
"application/pkcs7-signature",
"application/xpkcs7-signature",
"application/x-pkcs7-signature",
NULL
};
static gboolean
empe_app_smime_parse (EMailParserExtension *extension,
EMailParser *parser,
CamelMimePart *part,
GString *part_id,
GCancellable *cancellable,
GQueue *out_mail_parts)
{
CamelCipherContext *context;
CamelMimePart *opart;
CamelCipherValidity *valid;
GError *local_error = NULL;
CamelContentType *ct;
ct = camel_mime_part_get_content_type (part);
if (camel_content_type_is (ct, "application", "pkcs7-signature") ||
camel_content_type_is (ct, "application", "xpkcs7-signature") ||
camel_content_type_is (ct, "application", "x-pkcs7-signature")) {
return TRUE;
}
context = camel_smime_context_new (e_mail_parser_get_session (parser));
opart = camel_mime_part_new ();
valid = camel_cipher_context_decrypt_sync (
context, part, opart,
cancellable, &local_error);
e_mail_part_preserve_charset_in_content_type (part, opart);
if (local_error != NULL) {
e_mail_parser_error (
parser, out_mail_parts,
_("Could not parse S/MIME message: %s"),
local_error->message);
g_error_free (local_error);
} else {
GQueue work_queue = G_QUEUE_INIT;
GList *head, *link;
gint len = part_id->len;
g_string_append (part_id, ".encrypted");
e_mail_parser_parse_part (
parser, opart, part_id, cancellable, &work_queue);
g_string_truncate (part_id, len);
head = g_queue_peek_head_link (&work_queue);
/* Update validity flags of all the involved subp-arts */
for (link = head; link != NULL; link = g_list_next (link)) {
EMailPart *mail_part = link->data;
e_mail_part_update_validity (
mail_part, valid,
E_MAIL_PART_VALIDITY_ENCRYPTED |
E_MAIL_PART_VALIDITY_SMIME);
}
e_queue_transfer (&work_queue, out_mail_parts);
/* Add a widget with details about the encryption, but only
* when the encrypted isn't itself secured, in that case it
* has created the button itself. */
if (!e_mail_part_is_secured (opart)) {
EMailPart *mail_part;
g_string_append (part_id, ".encrypted.button");
e_mail_parser_parse_part_as (
parser, part, part_id,
"application/vnd.evolution.widget.secure-button",
cancellable, &work_queue);
mail_part = g_queue_peek_head (&work_queue);
if (mail_part != NULL)
e_mail_part_update_validity (
mail_part, valid,
E_MAIL_PART_VALIDITY_ENCRYPTED |
E_MAIL_PART_VALIDITY_SMIME);
e_queue_transfer (&work_queue, out_mail_parts);
g_string_truncate (part_id, len);
}
camel_cipher_validity_free (valid);
}
g_object_unref (opart);
g_object_unref (context);
return TRUE;
}
static void
e_mail_parser_application_smime_class_init (EMailParserExtensionClass *class)
{
class->mime_types = parser_mime_types;
class->flags = E_MAIL_PARSER_EXTENSION_INLINE;
class->parse = empe_app_smime_parse;
}
static void
e_mail_parser_application_smime_init (EMailParserExtension *extension)
{
}
|
