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/*
This file is part of GNUnet.
Copyright (C) 2020 GNUnet e.V.
GNUnet is free software: you can redistribute it and/or modify it
under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
GNUnet 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
Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
SPDX-License-Identifier: AGPL3.0-or-later
*/
/**
* @author Tobias Frisch
* @file src/messenger/gnunet-service-messenger_message_kind.c
* @brief GNUnet MESSENGER service
*/
#include "gnunet-service-messenger_message_kind.h"
#include "gnunet-service-messenger_util.h"
struct GNUNET_MESSENGER_Message*
create_message_info (struct GNUNET_MESSENGER_Ego *ego, struct GNUNET_CONTAINER_MultiShortmap *members)
{
struct GNUNET_MESSENGER_Message *message = create_message (GNUNET_MESSENGER_KIND_INFO);
if (!message)
return NULL;
GNUNET_memcpy(&(message->body.info.host_key), &(ego->pub), sizeof(ego->pub));
if (GNUNET_YES == generate_free_member_id (&(message->body.info.unique_id), members))
return message;
else
{
destroy_message (message);
return NULL;
}
}
struct GNUNET_MESSENGER_Message*
create_message_join (struct GNUNET_MESSENGER_Ego *ego)
{
struct GNUNET_MESSENGER_Message *message = create_message (GNUNET_MESSENGER_KIND_JOIN);
if (!message)
return NULL;
GNUNET_memcpy(&(message->body.join.key), &(ego->pub), sizeof(ego->pub));
return message;
}
struct GNUNET_MESSENGER_Message*
create_message_leave ()
{
return create_message (GNUNET_MESSENGER_KIND_LEAVE);
}
struct GNUNET_MESSENGER_Message*
create_message_name (const char *name)
{
struct GNUNET_MESSENGER_Message *message = create_message (GNUNET_MESSENGER_KIND_NAME);
if (!message)
return NULL;
message->body.name.name = GNUNET_strdup(name);
return message;
}
struct GNUNET_MESSENGER_Message*
create_message_key (const struct GNUNET_IDENTITY_PrivateKey *key)
{
struct GNUNET_MESSENGER_Message *message = create_message (GNUNET_MESSENGER_KIND_KEY);
if (!message)
return NULL;
GNUNET_IDENTITY_key_get_public (key, &(message->body.key.key));
return message;
}
struct GNUNET_MESSENGER_Message*
create_message_peer (const struct GNUNET_MESSENGER_Service *service)
{
struct GNUNET_MESSENGER_Message *message = create_message (GNUNET_MESSENGER_KIND_PEER);
if (!message)
return NULL;
if (GNUNET_OK == get_service_peer_identity (service, &(message->body.peer.peer)))
return message;
else
{
destroy_message (message);
return NULL;
}
}
struct GNUNET_MESSENGER_Message*
create_message_id (const struct GNUNET_ShortHashCode *unique_id)
{
struct GNUNET_MESSENGER_Message *message = create_message (GNUNET_MESSENGER_KIND_ID);
if (!message)
return NULL;
GNUNET_memcpy(&(message->body.id.id), unique_id, sizeof(struct GNUNET_ShortHashCode));
return message;
}
struct GNUNET_MESSENGER_Message*
create_message_miss (const struct GNUNET_PeerIdentity *peer)
{
struct GNUNET_MESSENGER_Message *message = create_message (GNUNET_MESSENGER_KIND_MISS);
if (!message)
{
return NULL;
}
GNUNET_memcpy(&(message->body.miss.peer), peer, sizeof(struct GNUNET_PeerIdentity));
return message;
}
struct GNUNET_MESSENGER_Message*
create_message_merge (const struct GNUNET_HashCode *previous)
{
struct GNUNET_MESSENGER_Message *message = create_message (GNUNET_MESSENGER_KIND_MERGE);
if (!message)
return NULL;
GNUNET_memcpy(&(message->body.merge.previous), previous, sizeof(struct GNUNET_HashCode));
return message;
}
struct GNUNET_MESSENGER_Message*
create_message_request (const struct GNUNET_HashCode *hash)
{
struct GNUNET_HashCode zero;
memset (&zero, 0, sizeof(zero));
if (0 == GNUNET_CRYPTO_hash_cmp (hash, &zero))
return NULL;
struct GNUNET_MESSENGER_Message *message = create_message (GNUNET_MESSENGER_KIND_REQUEST);
if (!message)
return NULL;
GNUNET_memcpy(&(message->body.request.hash), hash, sizeof(struct GNUNET_HashCode));
return message;
}
struct GNUNET_MESSENGER_Message*
create_message_invite (const struct GNUNET_PeerIdentity *door, const struct GNUNET_HashCode *key)
{
struct GNUNET_MESSENGER_Message *message = create_message (GNUNET_MESSENGER_KIND_INVITE);
if (!message)
return NULL;
GNUNET_memcpy(&(message->body.invite.door), door, sizeof(struct GNUNET_PeerIdentity));
GNUNET_memcpy(&(message->body.invite.key), key, sizeof(struct GNUNET_HashCode));
return message;
}
struct GNUNET_MESSENGER_Message*
create_message_text (const char *text)
{
struct GNUNET_MESSENGER_Message *message = create_message (GNUNET_MESSENGER_KIND_TEXT);
if (!message)
return NULL;
message->body.text.text = GNUNET_strdup(text);
return message;
}
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