1 files changed, 270 insertions, 0 deletions

diff --git a/src/service/messenger/messenger_api_handle.c b/src/service/messenger/messenger_api_handle.c
new file mode 100644
index 000000000..1cf2bccf0
--- /dev/null
+++ b/src/service/messenger/messenger_api_handle.c
@@ -0,0 +1,270 @@
+/*
+   This file is part of GNUnet.
+   Copyright (C) 2020--2023 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.c
+ * @brief messenger api: client implementation of GNUnet MESSENGER service
+ */
+
+#include "messenger_api_handle.h"
+
+#include "messenger_api_room.h"
+#include "messenger_api_util.h"
+
+struct GNUNET_MESSENGER_Handle*
+create_handle (const struct GNUNET_CONFIGURATION_Handle *cfg,
+               GNUNET_MESSENGER_MessageCallback msg_callback,
+               void *msg_cls)
+{
+  GNUNET_assert (cfg);
+
+  struct GNUNET_MESSENGER_Handle *handle = GNUNET_new (struct
+                                                       GNUNET_MESSENGER_Handle);
+
+  handle->cfg = cfg;
+  handle->mq = NULL;
+
+  handle->msg_callback = msg_callback;
+  handle->msg_cls = msg_cls;
+
+  handle->name = NULL;
+  handle->key = NULL;
+  handle->pubkey = NULL;
+
+  handle->reconnect_time = GNUNET_TIME_relative_get_zero_ ();
+  handle->reconnect_task = NULL;
+
+  handle->rooms = GNUNET_CONTAINER_multihashmap_create (8, GNUNET_NO);
+
+  init_contact_store (get_handle_contact_store (handle));
+
+  return handle;
+}
+
+
+static enum GNUNET_GenericReturnValue
+iterate_destroy_room (void *cls,
+                      const struct GNUNET_HashCode *key,
+                      void *value)
+{
+  struct GNUNET_MESSENGER_Room *room = value;
+
+  destroy_room (room);
+
+  return GNUNET_YES;
+}
+
+
+void
+destroy_handle (struct GNUNET_MESSENGER_Handle *handle)
+{
+  GNUNET_assert (handle);
+
+  clear_contact_store (get_handle_contact_store (handle));
+
+  if (handle->rooms)
+  {
+    GNUNET_CONTAINER_multihashmap_iterate (handle->rooms, iterate_destroy_room,
+                                           NULL);
+
+    GNUNET_CONTAINER_multihashmap_destroy (handle->rooms);
+  }
+
+  if (handle->reconnect_task)
+    GNUNET_SCHEDULER_cancel (handle->reconnect_task);
+
+  if (handle->mq)
+    GNUNET_MQ_destroy (handle->mq);
+
+  if (handle->name)
+    GNUNET_free (handle->name);
+
+  if (handle->key)
+    GNUNET_free (handle->key);
+
+  if (handle->pubkey)
+    GNUNET_free (handle->pubkey);
+
+  GNUNET_free (handle);
+}
+
+
+void
+set_handle_name (struct GNUNET_MESSENGER_Handle *handle,
+                 const char *name)
+{
+  GNUNET_assert (handle);
+
+  if (handle->name)
+    GNUNET_free (handle->name);
+
+  handle->name = name ? GNUNET_strdup (name) : NULL;
+}
+
+
+const char*
+get_handle_name (const struct GNUNET_MESSENGER_Handle *handle)
+{
+  GNUNET_assert (handle);
+
+  return handle->name;
+}
+
+
+void
+set_handle_key (struct GNUNET_MESSENGER_Handle *handle,
+                const struct GNUNET_CRYPTO_PrivateKey *key)
+{
+  GNUNET_assert (handle);
+
+  if (! key)
+  {
+    if (handle->key)
+      GNUNET_free (handle->key);
+
+    if (handle->pubkey)
+      GNUNET_free (handle->pubkey);
+
+    handle->key = NULL;
+    handle->pubkey = NULL;
+    return;
+  }
+
+  if (! handle->key)
+    handle->key = GNUNET_new (struct GNUNET_CRYPTO_PrivateKey);
+
+  if (! handle->pubkey)
+    handle->pubkey = GNUNET_new (struct GNUNET_CRYPTO_PublicKey);
+
+  GNUNET_memcpy (handle->key, key, sizeof(*key));
+  GNUNET_CRYPTO_key_get_public (key, handle->pubkey);
+}
+
+
+const struct GNUNET_CRYPTO_PrivateKey*
+get_handle_key (const struct GNUNET_MESSENGER_Handle *handle)
+{
+  GNUNET_assert (handle);
+
+  if (handle->key)
+    return handle->key;
+
+  return get_anonymous_private_key ();
+}
+
+
+const struct GNUNET_CRYPTO_PublicKey*
+get_handle_pubkey (const struct GNUNET_MESSENGER_Handle *handle)
+{
+  GNUNET_assert (handle);
+
+  if (handle->pubkey)
+    return handle->pubkey;
+
+  return get_anonymous_public_key ();
+}
+
+
+struct GNUNET_MESSENGER_ContactStore*
+get_handle_contact_store (struct GNUNET_MESSENGER_Handle *handle)
+{
+  GNUNET_assert (handle);
+
+  return &(handle->contact_store);
+}
+
+
+struct GNUNET_MESSENGER_Contact*
+get_handle_contact (struct GNUNET_MESSENGER_Handle *handle,
+                    const struct GNUNET_HashCode *key)
+{
+  GNUNET_assert ((handle) && (key));
+
+  struct GNUNET_MESSENGER_Room *room = GNUNET_CONTAINER_multihashmap_get (
+    handle->rooms, key);
+
+  if (! room)
+    return NULL;
+
+  const struct GNUNET_ShortHashCode *contact_id = get_room_sender_id (room);
+
+  if (! contact_id)
+    return NULL;
+
+  struct GNUNET_HashCode context;
+  get_context_from_member (key, contact_id, &context);
+
+  return get_store_contact (get_handle_contact_store (handle), &context,
+                            get_handle_pubkey (handle));
+}
+
+
+void
+open_handle_room (struct GNUNET_MESSENGER_Handle *handle,
+                  const struct GNUNET_HashCode *key)
+{
+  GNUNET_assert ((handle) && (key));
+
+  struct GNUNET_MESSENGER_Room *room = GNUNET_CONTAINER_multihashmap_get (
+    handle->rooms, key);
+
+  if (room)
+    room->opened = GNUNET_YES;
+}
+
+
+void
+entry_handle_room_at (struct GNUNET_MESSENGER_Handle *handle,
+                      const struct GNUNET_PeerIdentity *door,
+                      const struct GNUNET_HashCode *key)
+{
+  GNUNET_assert ((handle) && (door) && (key));
+
+  struct GNUNET_MESSENGER_Room *room = GNUNET_CONTAINER_multihashmap_get (
+    handle->rooms, key);
+
+  if (room)
+    add_to_list_tunnels (&(room->entries), door, NULL);
+}
+
+
+void
+close_handle_room (struct GNUNET_MESSENGER_Handle *handle,
+                   const struct GNUNET_HashCode *key)
+{
+  GNUNET_assert ((handle) && (key));
+
+  struct GNUNET_MESSENGER_Room *room = GNUNET_CONTAINER_multihashmap_get (
+    handle->rooms, key);
+
+  if ((room) && (GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove (
+                   handle->rooms, key, room)))
+    destroy_room (room);
+}
+
+
+struct GNUNET_MESSENGER_Room*
+get_handle_room (struct GNUNET_MESSENGER_Handle *handle,
+                 const struct GNUNET_HashCode *key)
+{
+  GNUNET_assert ((handle) && (key));
+
+  return GNUNET_CONTAINER_multihashmap_get (handle->rooms, key);
+}