#define ARRAY_SIZE(arr) (sizeof (arr) / sizeof (arr[0]))
#if (GMIME_MAJOR_VERSION < 3)
-/* Create a GPG context (GMime 2.6) */
-static GMimeCryptoContext *
-create_gpg_context (_notmuch_crypto_t *crypto)
+/* Create or pass on a GPG context (GMime 2.6) */
+static notmuch_status_t
+get_gpg_context (_notmuch_crypto_t *crypto, GMimeCryptoContext **ctx)
{
- GMimeCryptoContext *gpgctx;
+ if (ctx == NULL || crypto == NULL)
+ return NOTMUCH_STATUS_NULL_POINTER;
- if (crypto->gpgctx)
- return crypto->gpgctx;
+ if (crypto->gpgctx) {
+ *ctx = crypto->gpgctx;
+ return NOTMUCH_STATUS_SUCCESS;
+ }
/* TODO: GMimePasswordRequestFunc */
- gpgctx = g_mime_gpg_context_new (NULL, crypto->gpgpath ? crypto->gpgpath : "gpg");
- if (! gpgctx) {
- fprintf (stderr, "Failed to construct gpg context.\n");
- return NULL;
+ crypto->gpgctx = g_mime_gpg_context_new (NULL, crypto->gpgpath ? crypto->gpgpath : "gpg");
+ if (! crypto->gpgctx) {
+ return NOTMUCH_STATUS_FAILED_CRYPTO_CONTEXT_CREATION;
}
- crypto->gpgctx = gpgctx;
- g_mime_gpg_context_set_use_agent ((GMimeGpgContext *) gpgctx, true);
- g_mime_gpg_context_set_always_trust ((GMimeGpgContext *) gpgctx, false);
+ g_mime_gpg_context_set_use_agent ((GMimeGpgContext *) crypto->gpgctx, true);
+ g_mime_gpg_context_set_always_trust ((GMimeGpgContext *) crypto->gpgctx, false);
- return gpgctx;
+ *ctx = crypto->gpgctx;
+ return NOTMUCH_STATUS_SUCCESS;
}
-/* Create a PKCS7 context (GMime 2.6) */
-static GMimeCryptoContext *
-create_pkcs7_context (_notmuch_crypto_t *crypto)
+/* Create or pass on a PKCS7 context (GMime 2.6) */
+static notmuch_status_t
+get_pkcs7_context (_notmuch_crypto_t *crypto, GMimeCryptoContext **ctx)
{
- GMimeCryptoContext *pkcs7ctx;
+ if (ctx == NULL || crypto == NULL)
+ return NOTMUCH_STATUS_NULL_POINTER;
- if (crypto->pkcs7ctx)
- return crypto->pkcs7ctx;
+ if (crypto->pkcs7ctx) {
+ *ctx = crypto->pkcs7ctx;
+ return NOTMUCH_STATUS_SUCCESS;
+ }
/* TODO: GMimePasswordRequestFunc */
- pkcs7ctx = g_mime_pkcs7_context_new (NULL);
- if (! pkcs7ctx) {
- fprintf (stderr, "Failed to construct pkcs7 context.\n");
- return NULL;
+ crypto->pkcs7ctx = g_mime_pkcs7_context_new (NULL);
+ if (! crypto->pkcs7ctx) {
+ return NOTMUCH_STATUS_FAILED_CRYPTO_CONTEXT_CREATION;
}
- crypto->pkcs7ctx = pkcs7ctx;
- g_mime_pkcs7_context_set_always_trust ((GMimePkcs7Context *) pkcs7ctx,
+ g_mime_pkcs7_context_set_always_trust ((GMimePkcs7Context *) crypto->pkcs7ctx,
false);
- return pkcs7ctx;
+ *ctx = crypto->pkcs7ctx;
+ return NOTMUCH_STATUS_SUCCESS;
}
static const struct {
const char *protocol;
- GMimeCryptoContext *(*get_context) (_notmuch_crypto_t *crypto);
+ notmuch_status_t (*get_context) (_notmuch_crypto_t *crypto, GMimeCryptoContext **ctx);
} protocols[] = {
{
.protocol = "application/pgp-signature",
- .get_context = create_gpg_context,
+ .get_context = get_gpg_context,
},
{
.protocol = "application/pgp-encrypted",
- .get_context = create_gpg_context,
+ .get_context = get_gpg_context,
},
{
.protocol = "application/pkcs7-signature",
- .get_context = create_pkcs7_context,
+ .get_context = get_pkcs7_context,
},
{
.protocol = "application/x-pkcs7-signature",
- .get_context = create_pkcs7_context,
+ .get_context = get_pkcs7_context,
},
};
/* for the specified protocol return the context pointer (initializing
* if needed) */
-GMimeCryptoContext *
-_notmuch_crypto_get_gmime_context (_notmuch_crypto_t *crypto, const char *protocol)
+notmuch_status_t
+_notmuch_crypto_get_gmime_ctx_for_protocol (_notmuch_crypto_t *crypto,
+ const char *protocol,
+ GMimeCryptoContext **ctx)
{
- GMimeCryptoContext *cryptoctx = NULL;
- size_t i;
-
- if (! protocol) {
- fprintf (stderr, "Cryptographic protocol is empty.\n");
- return cryptoctx;
- }
+ if (! protocol)
+ return NOTMUCH_STATUS_MALFORMED_CRYPTO_PROTOCOL;
/* As per RFC 1847 section 2.1: "the [protocol] value token is
* comprised of the type and sub-type tokens of the Content-Type".
* parameter names as defined in this document are
* case-insensitive." Thus, we use strcasecmp for the protocol.
*/
- for (i = 0; i < ARRAY_SIZE (protocols); i++) {
+ for (size_t i = 0; i < ARRAY_SIZE (protocols); i++) {
if (strcasecmp (protocol, protocols[i].protocol) == 0)
- return protocols[i].get_context (crypto);
+ return protocols[i].get_context (crypto, ctx);
}
- fprintf (stderr, "Unknown or unsupported cryptographic protocol %s.\n",
- protocol);
-
- return NULL;
+ return NOTMUCH_STATUS_UNKNOWN_CRYPTO_PROTOCOL;
}
void
{
}
#endif
+
+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;
+#if (GMIME_MAJOR_VERSION < 3)
+ ret = g_mime_multipart_encrypted_decrypt_session (part,
+ crypto_ctx,
+ notmuch_message_properties_value (list),
+ decrypt_result, err);
+#else
+ ret = g_mime_multipart_encrypted_decrypt (part,
+ GMIME_DECRYPT_NONE,
+ notmuch_message_properties_value (list),
+ decrypt_result, err);
+#endif
+ 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_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_result)
+ flags |= GMIME_DECRYPT_EXPORT_SESSION_KEY;
+ ret = g_mime_multipart_encrypted_decrypt(part, flags, NULL,
+ decrypt_result, err);
+#endif
+ return ret;
+}
projects / notmuch / blobdiff