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Diffstat (limited to 'src/messenger/messenger_api_room.c')
| -rw-r--r-- | src/messenger/messenger_api_room.c | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/src/messenger/messenger_api_room.c b/src/messenger/messenger_api_room.c new file mode 100644 index 000000000..5fedf1a78 --- /dev/null +++ b/src/messenger/messenger_api_room.c @@ -0,0 +1,189 @@ +/* + 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/messenger_api_room.c + * @brief messenger api: client implementation of GNUnet MESSENGER service + */ + +#include "messenger_api_room.h" + +#include "messenger_api_handle.h" + +struct GNUNET_MESSENGER_Room* +create_room (struct GNUNET_MESSENGER_Handle *handle, const struct GNUNET_HashCode *key) +{ + struct GNUNET_MESSENGER_Room *room = GNUNET_new(struct GNUNET_MESSENGER_Room); + + room->handle = handle; + GNUNET_memcpy(&(room->key), key, sizeof(*key)); + + room->opened = GNUNET_NO; + room->contact_id = NULL; + + room->members = GNUNET_CONTAINER_multishortmap_create (8, GNUNET_NO); + + init_list_tunnels (&(room->entries)); + + room->messages = GNUNET_CONTAINER_multihashmap_create (8, GNUNET_NO); + + return room; +} + +static int +iterate_destroy_message (void *cls, const struct GNUNET_HashCode *key, void *value) +{ + struct GNUNET_MESSENGER_Message *message = value; + + destroy_message (message); + + return GNUNET_YES; +} + +void +destroy_room (struct GNUNET_MESSENGER_Room *room) +{ + if (room->members) + GNUNET_CONTAINER_multishortmap_destroy (room->members); + + clear_list_tunnels (&(room->entries)); + + if (room->messages) + { + GNUNET_CONTAINER_multihashmap_iterate (room->messages, iterate_destroy_message, NULL); + + GNUNET_CONTAINER_multihashmap_destroy (room->messages); + } + + if (room->contact_id) + GNUNET_free(room->contact_id); + + GNUNET_free(room); +} + +const struct GNUNET_MESSENGER_Message* +get_room_message (const struct GNUNET_MESSENGER_Room *room, const struct GNUNET_HashCode *hash) +{ + return GNUNET_CONTAINER_multihashmap_get (room->messages, hash); +} + +static void +handle_join_message (struct GNUNET_MESSENGER_Room *room, const struct GNUNET_MESSENGER_Message *message, + const struct GNUNET_HashCode *hash) +{ + struct GNUNET_MESSENGER_Contact *contact = get_handle_contact_by_pubkey (room->handle, &(message->body.join.key)); + + if (contact) + GNUNET_CONTAINER_multishortmap_put (room->members, &(message->header.sender_id), contact, + GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST); +} + +static void +handle_leave_message (struct GNUNET_MESSENGER_Room *room, const struct GNUNET_MESSENGER_Message *message, + const struct GNUNET_HashCode *hash) +{ + GNUNET_CONTAINER_multishortmap_remove_all (room->members, &(message->header.sender_id)); +} + +static void +handle_name_message (struct GNUNET_MESSENGER_Room *room, const struct GNUNET_MESSENGER_Message *message, + const struct GNUNET_HashCode *hash) +{ + struct GNUNET_MESSENGER_Contact *contact = GNUNET_CONTAINER_multishortmap_get (room->members, + &(message->header.sender_id)); + + if (contact) + set_contact_name (contact, message->body.name.name); +} + +static void +handle_key_message (struct GNUNET_MESSENGER_Room *room, const struct GNUNET_MESSENGER_Message *message, + const struct GNUNET_HashCode *hash) +{ + struct GNUNET_MESSENGER_Contact *contact = GNUNET_CONTAINER_multishortmap_get (room->members, + &(message->header.sender_id)); + + if (contact) + swap_handle_contact_by_pubkey (room->handle, contact, &(message->body.key.key)); +} + +static void +handle_id_message (struct GNUNET_MESSENGER_Room *room, const struct GNUNET_MESSENGER_Message *message, + const struct GNUNET_HashCode *hash) +{ + struct GNUNET_MESSENGER_Contact *contact = GNUNET_CONTAINER_multishortmap_get (room->members, + &(message->header.sender_id)); + + if ((contact) && (GNUNET_OK + == GNUNET_CONTAINER_multishortmap_put (room->members, &(message->body.id.id), contact, + GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST))) + GNUNET_CONTAINER_multishortmap_remove (room->members, &(message->header.sender_id), contact); +} + +static void +handle_miss_message (struct GNUNET_MESSENGER_Room *room, const struct GNUNET_MESSENGER_Message *message, + const struct GNUNET_HashCode *hash) +{ + if ((room->contact_id) && (0 == GNUNET_memcmp(&(message->header.sender_id), room->contact_id))) + { + struct GNUNET_MESSENGER_ListTunnel *match = find_list_tunnels (&(room->entries), &(message->body.miss.peer), NULL); + + if (match) + remove_from_list_tunnels (&(room->entries), match); + } +} + +void +handle_room_message (struct GNUNET_MESSENGER_Room *room, const struct GNUNET_MESSENGER_Message *message, + const struct GNUNET_HashCode *hash) +{ + if (GNUNET_NO != GNUNET_CONTAINER_multihashmap_contains (room->messages, hash)) + return; + + switch (message->header.kind) + { + case GNUNET_MESSENGER_KIND_JOIN: + handle_join_message (room, message, hash); + break; + case GNUNET_MESSENGER_KIND_LEAVE: + handle_leave_message (room, message, hash); + break; + case GNUNET_MESSENGER_KIND_NAME: + handle_name_message (room, message, hash); + break; + case GNUNET_MESSENGER_KIND_KEY: + handle_key_message (room, message, hash); + break; + case GNUNET_MESSENGER_KIND_ID: + handle_id_message (room, message, hash); + break; + case GNUNET_MESSENGER_KIND_MISS: + handle_miss_message (room, message, hash); + break; + default: + break; + } + + struct GNUNET_MESSENGER_Message *clone = copy_message (message); + + if (GNUNET_OK != GNUNET_CONTAINER_multihashmap_put (room->messages, hash, clone, + GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST)) + destroy_message (clone); +} |