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-rw-r--r--src/messenger/messenger_api_room.c189
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);
+}