libgnunetchat

library for GNUnet Messenger
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gnunet_chat_attribute_process.c (4440B)

      1 /*
      2    This file is part of GNUnet.
      3    Copyright (C) 2024 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_attribute_process.c
     23  */
     24 
     25 #include "gnunet_chat_attribute_process.h"
     26 
     27 #include "../gnunet_chat_handle.h"
     28 
     29 #include <gnunet/gnunet_common.h>
     30 #include <gnunet/gnunet_reclaim_service.h>
     31 #include <string.h>
     32 
     33 struct GNUNET_CHAT_AttributeProcess*
     34 internal_attributes_create(struct GNUNET_CHAT_Handle *handle,
     35                            const char *name)
     36 {
     37   GNUNET_assert(handle);
     38 
     39   struct GNUNET_CHAT_AttributeProcess *attributes = GNUNET_new(
     40     struct GNUNET_CHAT_AttributeProcess
     41   );
     42 
     43   if (!attributes)
     44     return NULL;
     45 
     46   memset(attributes, 0, sizeof(*attributes));
     47 
     48   attributes->handle = handle;
     49   
     50   if (!name)
     51     goto skip_name;
     52 
     53   attributes->name = GNUNET_strdup(name);
     54 
     55   if (!(attributes->name))
     56   {
     57     GNUNET_free(attributes);
     58     return NULL;
     59   }
     60 
     61 skip_name:
     62   GNUNET_CONTAINER_DLL_insert_tail(
     63     attributes->handle->attributes_head,
     64     attributes->handle->attributes_tail,
     65     attributes
     66   );
     67 
     68   return attributes;
     69 }
     70 
     71 struct GNUNET_CHAT_AttributeProcess*
     72 internal_attributes_create_store(struct GNUNET_CHAT_Handle *handle,
     73                                  const char *name,
     74                                  struct GNUNET_TIME_Relative expires)
     75 {
     76   GNUNET_assert((handle) && (name));
     77 
     78   struct GNUNET_CHAT_AttributeProcess *attributes;
     79   attributes = internal_attributes_create(handle, name);
     80 
     81   if (!attributes)
     82     return NULL;
     83 
     84   attributes->attribute = GNUNET_RECLAIM_attribute_new(
     85     name,
     86     NULL,
     87     GNUNET_RECLAIM_ATTRIBUTE_TYPE_NONE,
     88     NULL,
     89     0
     90   );
     91 
     92   if (!(attributes->attribute))
     93   {
     94     internal_attributes_destroy(attributes);
     95     return NULL;
     96   }
     97 
     98   attributes->expires = expires;
     99 
    100   return attributes;
    101 }
    102 
    103 struct GNUNET_CHAT_AttributeProcess*
    104 internal_attributes_create_share(struct GNUNET_CHAT_Handle *handle,
    105                                  struct GNUNET_CHAT_Contact *contact,
    106                                  const char *name)
    107 {
    108   GNUNET_assert((handle) && (contact) && (name));
    109 
    110   struct GNUNET_CHAT_AttributeProcess *attributes;
    111   attributes = internal_attributes_create(handle, name);
    112 
    113   if (!attributes)
    114     return NULL;
    115 
    116   attributes->contact = contact;
    117 
    118   return attributes;
    119 }
    120 
    121 struct GNUNET_CHAT_AttributeProcess*
    122 internal_attributes_create_request(struct GNUNET_CHAT_Handle *handle,
    123                                    struct GNUNET_CHAT_Account *account)
    124 {
    125   GNUNET_assert((handle) && (account));
    126 
    127   struct GNUNET_CHAT_AttributeProcess *attributes;
    128   attributes = internal_attributes_create(handle, NULL);
    129 
    130   if (!attributes)
    131     return NULL;
    132 
    133   attributes->account = account;
    134 
    135   return attributes;
    136 }
    137 
    138 void
    139 internal_attributes_destroy(struct GNUNET_CHAT_AttributeProcess *attributes)
    140 {
    141   GNUNET_assert((attributes) && (attributes->handle));
    142 
    143   GNUNET_CONTAINER_DLL_remove(
    144     attributes->handle->attributes_head,
    145     attributes->handle->attributes_tail,
    146     attributes
    147   );
    148 
    149   if (attributes->attribute)
    150     GNUNET_free(attributes->attribute);
    151   if (attributes->name)
    152     GNUNET_free(attributes->name);
    153   if (attributes->data)
    154     GNUNET_free(attributes->data);
    155 
    156   if (attributes->iter)
    157     GNUNET_RECLAIM_get_attributes_stop(attributes->iter);
    158   if (attributes->op)
    159     GNUNET_RECLAIM_cancel(attributes->op);
    160 
    161   GNUNET_free(attributes);
    162 }
    163 
    164 void
    165 internal_attributes_next_iter(struct GNUNET_CHAT_AttributeProcess *attributes)
    166 {
    167   GNUNET_assert((attributes) && (attributes->iter));
    168 
    169   GNUNET_RECLAIM_get_attributes_next(attributes->iter);
    170 }
    171 
    172 void
    173 internal_attributes_stop_iter(struct GNUNET_CHAT_AttributeProcess *attributes)
    174 {
    175   GNUNET_assert((attributes) && (attributes->iter));
    176 
    177   GNUNET_RECLAIM_get_attributes_stop(attributes->iter);
    178   attributes->iter = NULL;
    179 }