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/*
This file is part of GNUnet.
Copyright (C) 2020--2021 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/messenger_api_handle.h
* @brief messenger api: client implementation of GNUnet MESSENGER service
*/
#ifndef GNUNET_MESSENGER_API_HANDLE_H
#define GNUNET_MESSENGER_API_HANDLE_H
#include "platform.h"
#include "gnunet_cadet_service.h"
#include "gnunet_container_lib.h"
#include "gnunet_crypto_lib.h"
#include "gnunet_identity_service.h"
#include "gnunet_peer_lib.h"
#include "gnunet_messenger_service.h"
#include "messenger_api_contact_store.h"
#include "messenger_api_room.h"
struct GNUNET_MESSENGER_Handle
{
const struct GNUNET_CONFIGURATION_Handle *cfg;
struct GNUNET_MQ_Handle *mq;
GNUNET_MESSENGER_IdentityCallback identity_callback;
void *identity_cls;
GNUNET_MESSENGER_MessageCallback msg_callback;
void *msg_cls;
char *name;
struct GNUNET_IDENTITY_PublicKey *pubkey;
struct GNUNET_TIME_Relative reconnect_time;
struct GNUNET_SCHEDULER_Task *reconnect_task;
struct GNUNET_MESSENGER_ContactStore contact_store;
struct GNUNET_CONTAINER_MultiHashMap *rooms;
};
/**
* Creates and allocates a new handle using a given configuration and a custom message callback
* with a given closure for the client API.
*
* @param[in] cfg Configuration
* @param[in] msg_callback Message callback
* @param[in/out] msg_cls Closure
* @return New handle
*/
struct GNUNET_MESSENGER_Handle*
create_handle (const struct GNUNET_CONFIGURATION_Handle *cfg, GNUNET_MESSENGER_IdentityCallback identity_callback,
void *identity_cls, GNUNET_MESSENGER_MessageCallback msg_callback, void *msg_cls);
/**
* Destroys a <i>handle</i> and frees its memory fully from the client API.
*
* @param[in/out] handle Handle
*/
void
destroy_handle (struct GNUNET_MESSENGER_Handle *handle);
/**
* Sets the name of a <i>handle</i> to a specific <i>name</i>.
*
* @param[in/out] handle Handle
* @param[in] name New name
*/
void
set_handle_name (struct GNUNET_MESSENGER_Handle *handle, const char *name);
/**
* Returns the current name of a given <i>handle</i> or NULL if no valid name was assigned yet.
*
* @param[in] handle Handle
* @return Name of the handle or NULL
*/
const char*
get_handle_name (const struct GNUNET_MESSENGER_Handle *handle);
/**
* Sets the public key of a given <i>handle</i> to a specific public key.
*
* @param[in/out] handle Handle
* @param[in] pubkey Public key
*/
void
set_handle_key (struct GNUNET_MESSENGER_Handle *handle, const struct GNUNET_IDENTITY_PublicKey *pubkey);
/**
* Returns the public key of a given <i>handle</i>.
*
* @param[in] handle Handle
* @return Public key of the handle
*/
const struct GNUNET_IDENTITY_PublicKey*
get_handle_key (const struct GNUNET_MESSENGER_Handle *handle);
/**
* Returns the used contact store of a given <i>handle</i>.
*
* @param[in/out] handle Handle
* @return Contact store
*/
struct GNUNET_MESSENGER_ContactStore*
get_handle_contact_store (struct GNUNET_MESSENGER_Handle *handle);
/**
* Returns the contact of a given <i>handle</i> in a room identified by a
* given <i>key</i>.
*
* @param[in/out] handle Handle
* @param[in] key Key of room
* @return Contact
*/
struct GNUNET_MESSENGER_Contact*
get_handle_contact (struct GNUNET_MESSENGER_Handle *handle, const struct GNUNET_HashCode *key);
/**
* Marks a room known to a <i>handle</i> identified by a given <i>key</i> as open.
*
* @param[in/out] handle Handle
* @param[in] key Key of room
*/
void
open_handle_room (struct GNUNET_MESSENGER_Handle *handle, const struct GNUNET_HashCode *key);
/**
* Adds a tunnel for a room known to a <i>handle</i> identified by a given <i>key</i> to a
* list of opened connections.
*
* @param[in/out] handle Handle
* @param[in] door Peer identity
* @param[in] key Key of room
*/
void
entry_handle_room_at (struct GNUNET_MESSENGER_Handle *handle, const struct GNUNET_PeerIdentity *door,
const struct GNUNET_HashCode *key);
/**
* Destroys and so implicitly closes a room known to a <i>handle</i> identified by a given <i>key</i>.
*
* @param[in/out] handle Handle
* @param[in] key Key of room
*/
void
close_handle_room (struct GNUNET_MESSENGER_Handle *handle, const struct GNUNET_HashCode *key);
#endif //GNUNET_MESSENGER_API_HANDLE_H
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