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| | /* notmuch - Not much of an email program, (just index and search)
*
* Copyright © 2012 Jameson Rollins
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see https://www.gnu.org/licenses/ .
*
* Authors: Jameson Rollins <jrollins@finestructure.net>
*/
#include "crypto.h"
#include <strings.h>
#define unused(x) x __attribute__ ((unused))
#define ARRAY_SIZE(arr) (sizeof (arr) / sizeof (arr[0]))
void _notmuch_crypto_cleanup (unused(_notmuch_crypto_t *crypto))
{
}
GMimeObject *
_notmuch_crypto_decrypt (bool *attempted,
notmuch_decryption_policy_t decrypt,
notmuch_message_t *message,
g_mime_3_unused(GMimeCryptoContext* crypto_ctx),
GMimeMultipartEncrypted *part,
GMimeDecryptResult **decrypt_result,
GError **err)
{
GMimeObject *ret = NULL;
if (decrypt == NOTMUCH_DECRYPT_FALSE)
return NULL;
/* the versions of notmuch that can support session key decryption */
#if HAVE_GMIME_SESSION_KEYS
if (message) {
notmuch_message_properties_t *list = NULL;
for (list = notmuch_message_get_properties (message, "session-key", TRUE);
notmuch_message_properties_valid (list); notmuch_message_properties_move_to_next (list)) {
if (err && *err) {
g_error_free (*err);
*err = NULL;
}
if (attempted)
*attempted = true;
ret = g_mime_multipart_encrypted_decrypt (part,
GMIME_DECRYPT_NONE,
notmuch_message_properties_value (list),
decrypt_result, err);
if (ret)
break;
}
if (list)
notmuch_message_properties_destroy (list);
if (ret)
return ret;
}
#endif
if (err && *err) {
g_error_free (*err);
*err = NULL;
}
if (decrypt == NOTMUCH_DECRYPT_AUTO)
return ret;
if (attempted)
*attempted = true;
#if (GMIME_MAJOR_VERSION < 3)
#if HAVE_GMIME_SESSION_KEYS
gboolean oldgetsk = g_mime_crypto_context_get_retrieve_session_key (crypto_ctx);
gboolean newgetsk = (decrypt == NOTMUCH_DECRYPT_TRUE && decrypt_result);
if (newgetsk != oldgetsk)
/* This could return an error, but we can't do anything about it, so ignore it */
g_mime_crypto_context_set_retrieve_session_key (crypto_ctx, newgetsk, NULL);
#endif
ret = g_mime_multipart_encrypted_decrypt(part, crypto_ctx,
decrypt_result, err);
#if HAVE_GMIME_SESSION_KEYS
if (newgetsk != oldgetsk)
g_mime_crypto_context_set_retrieve_session_key (crypto_ctx, oldgetsk, NULL);
#endif
#else
GMimeDecryptFlags flags = GMIME_DECRYPT_NONE;
if (decrypt == NOTMUCH_DECRYPT_TRUE && decrypt_result)
flags |= GMIME_DECRYPT_EXPORT_SESSION_KEY;
ret = g_mime_multipart_encrypted_decrypt(part, flags, NULL,
decrypt_result, err);
#endif
return ret;
}
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