fs_publish_ksk.c

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/*
     This file is part of GNUnet.
     Copyright (C) 2009, 2010, 2012, 2013 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
 */
 
#include "platform.h"
#include "gnunet_constants.h"
#include "gnunet_signatures.h"
#include "gnunet_util_lib.h"
 
#include "gnunet_fs_service.h"
#include "fs_api.h"
#include "fs_tree.h"
#include "fs_publish_ublock.h"
 
struct GNUNET_FS_PublishKskContext
{
  struct GNUNET_FS_Uri *ksk_uri;
 
  struct GNUNET_FS_Uri *uri;
 
  struct GNUNET_FS_MetaData *meta;
 
  struct GNUNET_FS_Handle *h;
 
  struct GNUNET_FS_PublishUblockContext *uc;
 
  struct GNUNET_DATASTORE_Handle *dsh;
 
  struct GNUNET_SCHEDULER_Task *ksk_task;
 
  GNUNET_FS_PublishContinuation cont;
 
  void *cont_cls;
 
  struct GNUNET_FS_BlockOptions bo;
 
  enum GNUNET_FS_PublishOptions options;
 
  unsigned int i;
};
 
 
static void
publish_ksk_cont (void *cls);
 
 
static void
kb_put_cont (void *cls,
             const char *msg)
{
  struct GNUNET_FS_PublishKskContext *pkc = cls;
 
  pkc->uc = NULL;
  if (NULL != msg)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                "KBlock PUT operation failed: %s\n", msg);
    pkc->cont (pkc->cont_cls, NULL, msg);
    GNUNET_FS_publish_ksk_cancel (pkc);
    return;
  }
  pkc->ksk_task = GNUNET_SCHEDULER_add_now (&publish_ksk_cont, pkc);
}
 
 
static void
publish_ksk_cont (void *cls)
{
  struct GNUNET_FS_PublishKskContext *pkc = cls;
  const char *keyword;
 
  pkc->ksk_task = NULL;
  if ((pkc->i == pkc->ksk_uri->data.ksk.keywordCount) ||
      (NULL == pkc->dsh))
  {
    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                "KSK PUT operation complete\n");
    pkc->cont (pkc->cont_cls, pkc->ksk_uri,
               NULL);
    GNUNET_FS_publish_ksk_cancel (pkc);
    return;
  }
  keyword = pkc->ksk_uri->data.ksk.keywords[pkc->i++];
  pkc->uc = GNUNET_FS_publish_ublock_ (pkc->h,
                                       pkc->dsh,
                                       keyword + 1 /* skip '+' */,
                                       NULL,
                                       GNUNET_CRYPTO_ecdsa_key_get_anonymous (),
                                       pkc->meta,
                                       pkc->uri,
                                       &pkc->bo,
                                       pkc->options,
                                       &kb_put_cont, pkc);
}
 
 
struct GNUNET_FS_PublishKskContext *
GNUNET_FS_publish_ksk (struct GNUNET_FS_Handle *h,
                       const struct GNUNET_FS_Uri *ksk_uri,
                       const struct GNUNET_FS_MetaData *meta,
                       const struct GNUNET_FS_Uri *uri,
                       const struct GNUNET_FS_BlockOptions *bo,
                       enum GNUNET_FS_PublishOptions options,
                       GNUNET_FS_PublishContinuation cont, void *cont_cls)
{
  struct GNUNET_FS_PublishKskContext *pkc;
 
  GNUNET_assert (NULL != uri);
  pkc = GNUNET_new (struct GNUNET_FS_PublishKskContext);
  pkc->h = h;
  pkc->bo = *bo;
  pkc->options = options;
  pkc->cont = cont;
  pkc->cont_cls = cont_cls;
  pkc->meta = GNUNET_FS_meta_data_duplicate (meta);
  if (0 == (options & GNUNET_FS_PUBLISH_OPTION_SIMULATE_ONLY))
  {
    pkc->dsh = GNUNET_DATASTORE_connect (h->cfg);
    if (NULL == pkc->dsh)
    {
      cont (cont_cls,
            NULL,
            _ ("Could not connect to datastore."));
      GNUNET_free (pkc);
      return NULL;
    }
  }
  pkc->uri = GNUNET_FS_uri_dup (uri);
  pkc->ksk_uri = GNUNET_FS_uri_dup (ksk_uri);
  pkc->ksk_task = GNUNET_SCHEDULER_add_now (&publish_ksk_cont, pkc);
  return pkc;
}
 
 
void
GNUNET_FS_publish_ksk_cancel (struct GNUNET_FS_PublishKskContext *pkc)
{
  if (NULL != pkc->ksk_task)
  {
    GNUNET_SCHEDULER_cancel (pkc->ksk_task);
    pkc->ksk_task = NULL;
  }
  if (NULL != pkc->uc)
  {
    GNUNET_FS_publish_ublock_cancel_ (pkc->uc);
    pkc->uc = NULL;
  }
  if (NULL != pkc->dsh)
  {
    GNUNET_DATASTORE_disconnect (pkc->dsh, GNUNET_NO);
    pkc->dsh = NULL;
  }
  GNUNET_FS_meta_data_destroy (pkc->meta);
  GNUNET_FS_uri_destroy (pkc->ksk_uri);
  GNUNET_FS_uri_destroy (pkc->uri);
  GNUNET_free (pkc);
}
 
 
/* end of fs_publish_ksk.c */