libgnunetchat

library for GNUnet Messenger
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gnunet_chat_lobby_intern.c (3221B)

      1 /*
      2    This file is part of GNUnet.
      3    Copyright (C) 2022--2026 GNUnet e.V.
      4 
      5    GNUnet is free software: you can redistribute it and/or modify it
      6    under the terms of the GNU Affero General Public License as published
      7    by the Free Software Foundation, either version 3 of the License,
      8    or (at your option) any later version.
      9 
     10    GNUnet is distributed in the hope that it will be useful, but
     11    WITHOUT ANY WARRANTY; without even the implied warranty of
     12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     13    Affero General Public License for more details.
     14 
     15    You should have received a copy of the GNU Affero General Public License
     16    along with this program.  If not, see <http://www.gnu.org/licenses/>.
     17 
     18    SPDX-License-Identifier: AGPL3.0-or-later
     19  */
     20 /*
     21  * @author Tobias Frisch
     22  * @file gnunet_chat_lobby_intern.c
     23  */
     24 
     25 #include "gnunet_chat_context.h"
     26 #include "gnunet_chat_handle.h"
     27 
     28 void
     29 cont_lobby_write_records (void *cls,
     30 			                    enum GNUNET_ErrorCode ec)
     31 {
     32   struct GNUNET_CHAT_Lobby *lobby = cls;
     33 
     34   GNUNET_assert(lobby);
     35 
     36   lobby->query = NULL;
     37 
     38   handle_delete_lobby(lobby->handle, lobby);
     39 
     40   if (GNUNET_EC_NONE == ec)
     41   {
     42     context_write_records(lobby->context);
     43     goto call_cb;
     44   }
     45 
     46   handle_send_internal_message(
     47     lobby->handle,
     48     NULL,
     49     lobby->context,
     50     GNUNET_CHAT_FLAG_WARNING,
     51     GNUNET_ErrorCode_get_hint(ec),
     52     GNUNET_YES
     53   );
     54 
     55   if (lobby->uri)
     56     uri_destroy(lobby->uri);
     57 
     58   lobby->uri = NULL;
     59 
     60 call_cb:
     61   if (lobby->callback)
     62     lobby->callback(lobby->cls, lobby->uri);
     63 }
     64 
     65 void
     66 cont_lobby_identity_create (void *cls,
     67                             const struct GNUNET_CRYPTO_BlindablePrivateKey *zone,
     68                             enum GNUNET_ErrorCode ec)
     69 {
     70   struct GNUNET_CHAT_Lobby *lobby = cls;
     71 
     72   GNUNET_assert(lobby);
     73 
     74   lobby->op = NULL;
     75 
     76   if (GNUNET_EC_NONE != ec)
     77   {
     78     handle_send_internal_message(
     79 	    lobby->handle,
     80       NULL,
     81     	lobby->context,
     82     	GNUNET_CHAT_FLAG_WARNING,
     83 	    GNUNET_ErrorCode_get_hint(ec),
     84       GNUNET_YES
     85     );
     86 
     87     return;
     88   }
     89 
     90   const struct GNUNET_HashCode *key = GNUNET_MESSENGER_room_get_key(
     91     lobby->context->room
     92   );
     93 
     94   const struct GNUNET_PeerIdentity *pid = lobby->handle->pid;
     95 
     96   struct GNUNET_MESSENGER_RoomEntryRecord room;
     97   GNUNET_memcpy(&(room.key), key, sizeof(room.key));
     98 
     99   if (pid)
    100     GNUNET_memcpy(&(room.door), pid, sizeof(room.door));
    101   else
    102     memset(&(room.door), 0, sizeof(room.door));
    103 
    104   struct GNUNET_GNSRECORD_Data data [1];
    105   data[0].record_type = GNUNET_GNSRECORD_TYPE_MESSENGER_ROOM_ENTRY;
    106   data[0].data = &room;
    107   data[0].data_size = sizeof(room);
    108   data[0].expiration_time = lobby->expiration.abs_value_us;
    109   data[0].flags = GNUNET_GNSRECORD_RF_NONE;
    110 
    111   if (lobby->uri)
    112     uri_destroy(lobby->uri);
    113 
    114   struct GNUNET_CRYPTO_BlindablePublicKey public_zone;
    115   GNUNET_CRYPTO_blindable_key_get_public(zone, &public_zone);
    116 
    117   char *label;
    118   util_get_context_label(lobby->context->type, key, &label);
    119 
    120   lobby->uri = uri_create_chat(&public_zone, label);
    121   GNUNET_free(label);
    122 
    123   lobby->query = GNUNET_NAMESTORE_record_set_store(
    124     lobby->handle->namestore,
    125     zone,
    126     lobby->uri->chat.label,
    127     1,
    128     data,
    129     cont_lobby_write_records,
    130     lobby
    131   );
    132 }