1 /* notmuch - Not much of an email program, (just index and search)
3 * Copyright © 2012 Jameson Rollins
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see https://www.gnu.org/licenses/ .
18 * Authors: Jameson Rollins <jrollins@finestructure.net>
23 #define unused(x) x __attribute__ ((unused))
25 #define ARRAY_SIZE(arr) (sizeof (arr) / sizeof (arr[0]))
27 #if (GMIME_MAJOR_VERSION < 3)
28 /* Create a GPG context (GMime 2.6) */
29 static GMimeCryptoContext *
30 create_gpg_context (_notmuch_crypto_t *crypto)
32 GMimeCryptoContext *gpgctx;
35 return crypto->gpgctx;
37 /* TODO: GMimePasswordRequestFunc */
38 gpgctx = g_mime_gpg_context_new (NULL, crypto->gpgpath ? crypto->gpgpath : "gpg");
40 fprintf (stderr, "Failed to construct gpg context.\n");
43 crypto->gpgctx = gpgctx;
45 g_mime_gpg_context_set_use_agent ((GMimeGpgContext *) gpgctx, true);
46 g_mime_gpg_context_set_always_trust ((GMimeGpgContext *) gpgctx, false);
51 /* Create a PKCS7 context (GMime 2.6) */
52 static GMimeCryptoContext *
53 create_pkcs7_context (_notmuch_crypto_t *crypto)
55 GMimeCryptoContext *pkcs7ctx;
58 return crypto->pkcs7ctx;
60 /* TODO: GMimePasswordRequestFunc */
61 pkcs7ctx = g_mime_pkcs7_context_new (NULL);
63 fprintf (stderr, "Failed to construct pkcs7 context.\n");
66 crypto->pkcs7ctx = pkcs7ctx;
68 g_mime_pkcs7_context_set_always_trust ((GMimePkcs7Context *) pkcs7ctx,
75 GMimeCryptoContext *(*get_context) (_notmuch_crypto_t *crypto);
78 .protocol = "application/pgp-signature",
79 .get_context = create_gpg_context,
82 .protocol = "application/pgp-encrypted",
83 .get_context = create_gpg_context,
86 .protocol = "application/pkcs7-signature",
87 .get_context = create_pkcs7_context,
90 .protocol = "application/x-pkcs7-signature",
91 .get_context = create_pkcs7_context,
95 /* for the specified protocol return the context pointer (initializing
98 _notmuch_crypto_get_gmime_context (_notmuch_crypto_t *crypto, const char *protocol)
100 GMimeCryptoContext *cryptoctx = NULL;
104 fprintf (stderr, "Cryptographic protocol is empty.\n");
108 /* As per RFC 1847 section 2.1: "the [protocol] value token is
109 * comprised of the type and sub-type tokens of the Content-Type".
110 * As per RFC 1521 section 2: "Content-Type values, subtypes, and
111 * parameter names as defined in this document are
112 * case-insensitive." Thus, we use strcasecmp for the protocol.
114 for (i = 0; i < ARRAY_SIZE (protocols); i++) {
115 if (strcasecmp (protocol, protocols[i].protocol) == 0)
116 return protocols[i].get_context (crypto);
119 fprintf (stderr, "Unknown or unsupported cryptographic protocol %s.\n",
126 _notmuch_crypto_cleanup (_notmuch_crypto_t *crypto)
128 if (crypto->gpgctx) {
129 g_object_unref (crypto->gpgctx);
130 crypto->gpgctx = NULL;
133 if (crypto->pkcs7ctx) {
134 g_object_unref (crypto->pkcs7ctx);
135 crypto->pkcs7ctx = NULL;
139 void _notmuch_crypto_cleanup (unused(_notmuch_crypto_t *crypto))