From ca912f85dae6b61dd80ab02d0e3f0b20a556da7c Mon Sep 17 00:00:00 2001 From: TheJackiMonster Date: Thu, 12 Nov 2020 20:58:07 +0100 Subject: -remerge branch 'jacki/messenger' This reverts commit e11d1e59e4ae5f7d89c33df3ae9ca8f1ece990cf. --- .../gnunet-service-messenger_message_recv.c | 204 +++++++++++++++++++++ 1 file changed, 204 insertions(+) create mode 100644 src/messenger/gnunet-service-messenger_message_recv.c (limited to 'src/messenger/gnunet-service-messenger_message_recv.c') diff --git a/src/messenger/gnunet-service-messenger_message_recv.c b/src/messenger/gnunet-service-messenger_message_recv.c new file mode 100644 index 000000000..aa28a36ea --- /dev/null +++ b/src/messenger/gnunet-service-messenger_message_recv.c @@ -0,0 +1,204 @@ +/* + 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 . + + SPDX-License-Identifier: AGPL3.0-or-later + */ +/** + * @author Tobias Frisch + * @file src/messenger/gnunet-service-messenger_message_recv.c + * @brief GNUnet MESSENGER service + */ + +#include "gnunet-service-messenger_message_recv.h" +#include "gnunet-service-messenger_message_handle.h" + +void +recv_message_info (struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_SrvTunnel *tunnel, + struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash) +{ + int conflict = GNUNET_CONTAINER_multishortmap_contains (room->members, &(message->body.info.unique_id)); + + if (GNUNET_NO == conflict) + { + struct GNUNET_MESSENGER_Message *sync_message = create_message_id (&(message->body.info.unique_id)); + struct GNUNET_HashCode sync_hash; + + send_room_message_ext (room, room->host, sync_message, &sync_hash, tunnel); + destroy_message (sync_message); + + switch_room_member_id (room, get_room_host_id (room), &(message->body.info.unique_id), NULL); + + change_room_host_id (room, &(message->body.info.unique_id)); + } + + if (!tunnel->contact_id) + tunnel->contact_id = GNUNET_new(struct GNUNET_ShortHashCode); + + GNUNET_memcpy(tunnel->contact_id, &(message->header.sender_id), sizeof(struct GNUNET_ShortHashCode)); + + struct GNUNET_ShortHashCode original_id; + + if (GNUNET_YES == conflict) + { + GNUNET_memcpy(&original_id, get_room_host_id (room), sizeof(struct GNUNET_ShortHashCode)); + + change_room_host_id (room, &(message->body.info.unique_id)); + } + + { + struct GNUNET_MESSENGER_Message *join_message = create_message_join (room->host->ego); + struct GNUNET_HashCode join_hash; + + send_tunnel_message (tunnel, room->host, join_message, &join_hash); + destroy_message (join_message); + } + + if ((GNUNET_YES == conflict) && (0 != GNUNET_memcmp(&original_id, get_room_host_id (room)))) + { + struct GNUNET_MESSENGER_Message *sync_message = create_message_id (&original_id); + struct GNUNET_HashCode sync_hash; + + send_tunnel_message (tunnel, room->host, sync_message, &sync_hash); + destroy_message (sync_message); + } +} + +struct GNUNET_MESSENGER_MemberInfoSpread +{ + struct GNUNET_MESSENGER_SrvRoom *room; + struct GNUNET_MESSENGER_SrvTunnel *tunnel; +}; + +static int +iterate_send_member_infos (void *cls, const struct GNUNET_ShortHashCode *key, void *value) +{ + struct GNUNET_MESSENGER_MemberInfo *info = value; + struct GNUNET_MESSENGER_MemberInfoSpread *spread = cls; + + struct GNUNET_MESSENGER_ListMessage *element = info->session_messages.head; + + while (element) + { + const struct GNUNET_MESSENGER_Message *message = get_room_message (spread->room, spread->room->host, + &(element->hash), GNUNET_NO); + + if (message) + forward_tunnel_message (spread->tunnel, message, &(element->hash)); + + element = element->next; + } + + return GNUNET_YES; +} + +void +recv_message_join (struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_SrvTunnel *tunnel, + struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash) +{ + const struct GNUNET_MESSENGER_Message *info_msg = get_room_message (room, room->host, &(message->header.previous), + GNUNET_NO); + + if ((info_msg) && (0 == GNUNET_memcmp(&(info_msg->header.sender_id), get_room_host_id (room))) + && (GNUNET_MESSENGER_KIND_INFO == info_msg->header.kind)) + { + struct GNUNET_MESSENGER_MemberInfoSpread spread; + + spread.room = room; + + if ((tunnel) && (tunnel->contact_id) && (0 == GNUNET_memcmp(tunnel->contact_id, &(message->header.sender_id)))) + spread.tunnel = tunnel; + else + spread.tunnel = find_room_tunnel_to (room, &(message->header.sender_id)); + + if (spread.tunnel) + GNUNET_CONTAINER_multishortmap_iterate (room->member_infos, iterate_send_member_infos, &spread); + } + + handle_message_join (room, tunnel, message, hash); +} + +void +recv_message_leave (struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_SrvTunnel *tunnel, + struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash) +{ + handle_message_leave (room, tunnel, message, hash); +} + +void +recv_message_name (struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_SrvTunnel *tunnel, + struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash) +{ + handle_message_name (room, tunnel, message, hash); +} + +void +recv_message_key (struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_SrvTunnel *tunnel, + struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash) +{ + handle_message_key (room, tunnel, message, hash); +} + +void +recv_message_peer (struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_SrvTunnel *tunnel, + struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash) +{ + struct GNUNET_PeerIdentity peer; + GNUNET_PEER_resolve (tunnel->peer, &peer); + + if (0 == GNUNET_memcmp(&peer, &(message->body.peer.peer))) + { + if (!tunnel->peer_message) + tunnel->peer_message = GNUNET_new(struct GNUNET_HashCode); + + GNUNET_memcpy(tunnel->peer_message, hash, sizeof(struct GNUNET_HashCode)); + + if (!tunnel->contact_id) + tunnel->contact_id = GNUNET_new(struct GNUNET_ShortHashCode); + + GNUNET_memcpy(tunnel->contact_id, &(message->header.sender_id), sizeof(struct GNUNET_ShortHashCode)); + } + + handle_message_peer (room, tunnel, message, hash); +} + +void +recv_message_id (struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_SrvTunnel *tunnel, + struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash) +{ + if ((tunnel->contact_id) && (0 == GNUNET_memcmp(tunnel->contact_id, &(message->header.sender_id)))) + GNUNET_memcpy(tunnel->contact_id, &(message->body.id.id), sizeof(struct GNUNET_ShortHashCode)); + + handle_message_id (room, tunnel, message, hash); +} + +void +recv_message_miss (struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_SrvTunnel *tunnel, + struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash) +{ + handle_message_miss (room, tunnel, message, hash); +} + +void +recv_message_request (struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_SrvTunnel *tunnel, + struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash) +{ + const struct GNUNET_MESSENGER_Message *msg = get_room_message (room, room->host, &(message->body.request.hash), + GNUNET_NO); + + if (msg) + forward_tunnel_message (tunnel, msg, &(message->body.request.hash)); +} -- cgit v1.2.3