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https://git.notmuchmail.org/git/notmuch
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0f314c0c99
C99 stdbool turned 18 this year. There really is no reason to use our own, except in the library interface for backward compatibility. Convert the cli and test binaries to stdbool.
140 lines
3.8 KiB
C
140 lines
3.8 KiB
C
/* notmuch - Not much of an email program, (just index and search)
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*
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* Copyright © 2012 Jameson Rollins
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see https://www.gnu.org/licenses/ .
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*
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* Authors: Jameson Rollins <jrollins@finestructure.net>
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*/
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#include "notmuch-client.h"
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#if (GMIME_MAJOR_VERSION < 3)
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/* Create a GPG context (GMime 2.6) */
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static notmuch_crypto_context_t *
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create_gpg_context (notmuch_crypto_t *crypto)
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{
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notmuch_crypto_context_t *gpgctx;
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if (crypto->gpgctx)
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return crypto->gpgctx;
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/* TODO: GMimePasswordRequestFunc */
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gpgctx = g_mime_gpg_context_new (NULL, crypto->gpgpath ? crypto->gpgpath : "gpg");
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if (! gpgctx) {
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fprintf (stderr, "Failed to construct gpg context.\n");
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return NULL;
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}
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crypto->gpgctx = gpgctx;
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g_mime_gpg_context_set_use_agent ((GMimeGpgContext *) gpgctx, true);
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g_mime_gpg_context_set_always_trust ((GMimeGpgContext *) gpgctx, false);
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return gpgctx;
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}
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/* Create a PKCS7 context (GMime 2.6) */
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static notmuch_crypto_context_t *
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create_pkcs7_context (notmuch_crypto_t *crypto)
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{
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notmuch_crypto_context_t *pkcs7ctx;
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if (crypto->pkcs7ctx)
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return crypto->pkcs7ctx;
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/* TODO: GMimePasswordRequestFunc */
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pkcs7ctx = g_mime_pkcs7_context_new (NULL);
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if (! pkcs7ctx) {
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fprintf (stderr, "Failed to construct pkcs7 context.\n");
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return NULL;
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}
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crypto->pkcs7ctx = pkcs7ctx;
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g_mime_pkcs7_context_set_always_trust ((GMimePkcs7Context *) pkcs7ctx,
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false);
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return pkcs7ctx;
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}
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static const struct {
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const char *protocol;
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notmuch_crypto_context_t *(*get_context) (notmuch_crypto_t *crypto);
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} protocols[] = {
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{
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.protocol = "application/pgp-signature",
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.get_context = create_gpg_context,
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},
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{
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.protocol = "application/pgp-encrypted",
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.get_context = create_gpg_context,
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},
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{
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.protocol = "application/pkcs7-signature",
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.get_context = create_pkcs7_context,
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},
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{
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.protocol = "application/x-pkcs7-signature",
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.get_context = create_pkcs7_context,
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},
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};
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/* for the specified protocol return the context pointer (initializing
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* if needed) */
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notmuch_crypto_context_t *
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notmuch_crypto_get_context (notmuch_crypto_t *crypto, const char *protocol)
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{
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notmuch_crypto_context_t *cryptoctx = NULL;
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size_t i;
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if (! protocol) {
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fprintf (stderr, "Cryptographic protocol is empty.\n");
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return cryptoctx;
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}
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/* As per RFC 1847 section 2.1: "the [protocol] value token is
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* comprised of the type and sub-type tokens of the Content-Type".
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* As per RFC 1521 section 2: "Content-Type values, subtypes, and
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* parameter names as defined in this document are
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* case-insensitive." Thus, we use strcasecmp for the protocol.
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*/
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for (i = 0; i < ARRAY_SIZE (protocols); i++) {
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if (strcasecmp (protocol, protocols[i].protocol) == 0)
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return protocols[i].get_context (crypto);
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}
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fprintf (stderr, "Unknown or unsupported cryptographic protocol %s.\n",
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protocol);
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return NULL;
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}
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int
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notmuch_crypto_cleanup (notmuch_crypto_t *crypto)
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{
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if (crypto->gpgctx) {
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g_object_unref (crypto->gpgctx);
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crypto->gpgctx = NULL;
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}
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if (crypto->pkcs7ctx) {
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g_object_unref (crypto->pkcs7ctx);
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crypto->pkcs7ctx = NULL;
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}
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return 0;
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}
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#else
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int notmuch_crypto_cleanup (unused(notmuch_crypto_t *crypto))
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{
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return 0;
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}
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#endif
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