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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.h
* @brief GNUnet MESSENGER service
*/
#ifndef GNUNET_SERVICE_MESSENGER_MESSAGE_KIND_H
#define GNUNET_SERVICE_MESSENGER_MESSAGE_KIND_H
#include "platform.h"
#include "gnunet_container_lib.h"
#include "gnunet_crypto_lib.h"
#include "gnunet_identity_service.h"
#include "messenger_api_message.h"
#include "gnunet-service-messenger_service.h"
#include "messenger_api_ego.h"
/**
* Creates and allocates a new info message containing the hosts public key and a newly generated unique member id.
* (all values are stored as copy)
*
* @param ego EGO of the host
* @param members Map of all assigned member ids
* @return New message
*/
struct GNUNET_MESSENGER_Message*
create_message_info (struct GNUNET_MESSENGER_Ego *ego, struct GNUNET_CONTAINER_MultiShortmap *members);
/**
* Creates and allocates a new join message containing the clients public key.
* (all values are stored as copy)
*
* @param ego EGO of the client
* @return New message
*/
struct GNUNET_MESSENGER_Message*
create_message_join (struct GNUNET_MESSENGER_Ego *ego);
/**
* Creates and allocates a new leave message.
*
* @return New message
*/
struct GNUNET_MESSENGER_Message*
create_message_leave ();
/**
* Creates and allocates a new name message containing the <i>name</i> to change to.
* (all values are stored as copy)
*
* @param name New name
* @return New message
*/
struct GNUNET_MESSENGER_Message*
create_message_name (const char *name);
/**
* Creates and allocates a new key message containing the public key to change to derived
* from its private counterpart. (all values are stored as copy)
*
* @param key Private key of EGO
* @return New message
*/
struct GNUNET_MESSENGER_Message*
create_message_key (const struct GNUNET_IDENTITY_PrivateKey *key);
/**
* Creates and allocates a new peer message containing a services peer identity.
* (all values are stored as copy)
*
* @param service Service
* @return New message
*/
struct GNUNET_MESSENGER_Message*
create_message_peer (const struct GNUNET_MESSENGER_Service *service);
/**
* Creates and allocates a new id message containing the unique member id to change to.
* (all values are stored as copy)
*
* @param unique_id Unique member id
* @return New message
*/
struct GNUNET_MESSENGER_Message*
create_message_id (const struct GNUNET_ShortHashCode *unique_id);
/**
* Creates and allocates a new miss message containing the missing peer identity.
* (all values are stored as copy)
*
* @param peer Missing peer identity
* @return New message
*/
struct GNUNET_MESSENGER_Message*
create_message_miss (const struct GNUNET_PeerIdentity *peer);
/**
* Creates and allocates a new merge message containing the hash of a second previous message
* besides the regular previous message mentioned in a messages header.
* (all values are stored as copy)
*
* @param previous Hash of message
* @return New message
*/
struct GNUNET_MESSENGER_Message*
create_message_merge (const struct GNUNET_HashCode *previous);
/**
* Creates and allocates a new request message containing the hash of a missing message.
* (all values are stored as copy)
*
* @param hash Hash of message
* @return New message
*/
struct GNUNET_MESSENGER_Message*
create_message_request (const struct GNUNET_HashCode *hash);
/**
* Creates and allocates a new invite message containing the peer identity of an entrance peer
* to a room using a given <i>key</i> as shared secret for communication.
* (all values are stored as copy)
*
* @param door Peer identity
* @param key Shared secret of a room
* @return New message
*/
struct GNUNET_MESSENGER_Message*
create_message_invite (const struct GNUNET_PeerIdentity *door, const struct GNUNET_HashCode *key);
/**
* Creates and allocates a new text message containing a string representing text.
* (all values are stored as copy)
*
* @param text Text
* @return New message
*/
struct GNUNET_MESSENGER_Message*
create_message_text (const char *text);
#endif //GNUNET_SERVICE_MESSENGER_MESSAGE_KIND_H
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