remove obsolete daemon selection of fake outs and old tx construction

src/cryptonote_core/blockchain.cpp

@@ -1717,17 +1717,6 @@ size_t Blockchain::get_alternative_blocks_count() const
 //------------------------------------------------------------------
 // This function adds the output specified by <amount, i> to the result_outs container
 // unlocked and other such checks should be done by here.
-void Blockchain::add_out_to_get_random_outs(COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::outs_for_amount& result_outs, uint64_t amount, size_t i) const
-{
-  LOG_PRINT_L3("Blockchain::" << __func__);
-  CRITICAL_REGION_LOCAL(m_blockchain_lock);
-
-  COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::out_entry& oen = *result_outs.outs.insert(result_outs.outs.end(), COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::out_entry());
-  oen.global_amount_index = i;
-  output_data_t data = m_db->get_output_key(amount, i);
-  oen.out_key = data.pubkey;
-}
-
 uint64_t Blockchain::get_num_mature_outputs(uint64_t amount) const
 {
   uint64_t num_outs = m_db->get_num_outputs(amount);
@@ -1745,243 +1734,12 @@ uint64_t Blockchain::get_num_mature_outputs(uint64_t amount) const
   return num_outs;
 }
 
-std::vector<uint64_t> Blockchain::get_random_outputs(uint64_t amount, uint64_t count) const
-{
-  uint64_t num_outs = get_num_mature_outputs(amount);
-
-  std::vector<uint64_t> indices;
-
-  std::unordered_set<uint64_t> seen_indices;
-
-  // if there aren't enough outputs to mix with (or just enough),
-  // use all of them.  Eventually this should become impossible.
-  if (num_outs <= count)
-  {
-    for (uint64_t i = 0; i < num_outs; i++)
-    {
-      // get tx_hash, tx_out_index from DB
-      tx_out_index toi = m_db->get_output_tx_and_index(amount, i);
-
-      // if tx is unlocked, add output to indices
-      if (is_tx_spendtime_unlocked(m_db->get_tx_unlock_time(toi.first)))
-      {
-        indices.push_back(i);
-      }
-    }
-  }
-  else
-  {
-    // while we still need more mixins
-    while (indices.size() < count)
-    {
-      // if we've gone through every possible output, we've gotten all we can
-      if (seen_indices.size() == num_outs)
-      {
-        break;
-      }
-
-      // get a random output index from the DB.  If we've already seen it,
-      // return to the top of the loop and try again, otherwise add it to the
-      // list of output indices we've seen.
-
-      // triangular distribution over [a,b) with a=0, mode c=b=up_index_limit
-      uint64_t r = crypto::rand<uint64_t>() % ((uint64_t)1 << 53);
-      double frac = std::sqrt((double)r / ((uint64_t)1 << 53));
-      uint64_t i = (uint64_t)(frac*num_outs);
-      // just in case rounding up to 1 occurs after sqrt
-      if (i == num_outs)
-        --i;
-
-      if (seen_indices.count(i))
-      {
-        continue;
-      }
-      seen_indices.emplace(i);
-
-      // get tx_hash, tx_out_index from DB
-      tx_out_index toi = m_db->get_output_tx_and_index(amount, i);
-
-      // if the output's transaction is unlocked, add the output's index to
-      // our list.
-      if (is_tx_spendtime_unlocked(m_db->get_tx_unlock_time(toi.first)))
-      {
-        indices.push_back(i);
-      }
-    }
-  }
-
-  return indices;
-}
-
 crypto::public_key Blockchain::get_output_key(uint64_t amount, uint64_t global_index) const
 {
   output_data_t data = m_db->get_output_key(amount, global_index);
   return data.pubkey;
 }
 
-//------------------------------------------------------------------
-// This function takes an RPC request for mixins and creates an RPC response
-// with the requested mixins.
-// TODO: figure out why this returns boolean / if we should be returning false
-// in some cases
-bool Blockchain::get_random_outs_for_amounts(const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::request& req, COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::response& res) const
-{
-  LOG_PRINT_L3("Blockchain::" << __func__);
-  CRITICAL_REGION_LOCAL(m_blockchain_lock);
-
-  // for each amount that we need to get mixins for, get <n> random outputs
-  // from BlockchainDB where <n> is req.outs_count (number of mixins).
-  for (uint64_t amount : req.amounts)
-  {
-    // create outs_for_amount struct and populate amount field
-    COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::outs_for_amount& result_outs = *res.outs.insert(res.outs.end(), COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::outs_for_amount());
-    result_outs.amount = amount;
-
-    std::vector<uint64_t> indices = get_random_outputs(amount, req.outs_count);
-
-    for (auto i : indices)
-    {
-      COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::out_entry& oe = *result_outs.outs.insert(result_outs.outs.end(), COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::out_entry());
-
-      oe.global_amount_index = i;
-      oe.out_key = get_output_key(amount, i);
-    }
-  }
-  return true;
-}
-//------------------------------------------------------------------
-// This function adds the ringct output at index i to the list
-// unlocked and other such checks should be done by here.
-void Blockchain::add_out_to_get_rct_random_outs(std::list<COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS::out_entry>& outs, uint64_t amount, size_t i) const
-{
-  LOG_PRINT_L3("Blockchain::" << __func__);
-  CRITICAL_REGION_LOCAL(m_blockchain_lock);
-
-  COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS::out_entry& oen = *outs.insert(outs.end(), COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS::out_entry());
-  oen.amount = amount;
-  oen.global_amount_index = i;
-  output_data_t data = m_db->get_output_key(amount, i);
-  oen.out_key = data.pubkey;
-  oen.commitment = data.commitment;
-}
-//------------------------------------------------------------------
-// This function takes an RPC request for mixins and creates an RPC response
-// with the requested mixins.
-// TODO: figure out why this returns boolean / if we should be returning false
-// in some cases
-bool Blockchain::get_random_rct_outs(const COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS::request& req, COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS::response& res) const
-{
-  LOG_PRINT_L3("Blockchain::" << __func__);
-  CRITICAL_REGION_LOCAL(m_blockchain_lock);
-
-  // for each amount that we need to get mixins for, get <n> random outputs
-  // from BlockchainDB where <n> is req.outs_count (number of mixins).
-  auto num_outs = m_db->get_num_outputs(0);
-  // ensure we don't include outputs that aren't yet eligible to be used
-  // outpouts are sorted by height
-  while (num_outs > 0)
-  {
-    const tx_out_index toi = m_db->get_output_tx_and_index(0, num_outs - 1);
-    const uint64_t height = m_db->get_tx_block_height(toi.first);
-    if (height + CRYPTONOTE_DEFAULT_TX_SPENDABLE_AGE <= m_db->height())
-      break;
-    --num_outs;
-  }
-
-  std::unordered_set<uint64_t> seen_indices;
-
-  // if there aren't enough outputs to mix with (or just enough),
-  // use all of them.  Eventually this should become impossible.
-  if (num_outs <= req.outs_count)
-  {
-    for (uint64_t i = 0; i < num_outs; i++)
-    {
-      // get tx_hash, tx_out_index from DB
-      tx_out_index toi = m_db->get_output_tx_and_index(0, i);
-
-      // if tx is unlocked, add output to result_outs
-      if (is_tx_spendtime_unlocked(m_db->get_tx_unlock_time(toi.first)))
-      {
-        add_out_to_get_rct_random_outs(res.outs, 0, i);
-      }
-    }
-  }
-  else
-  {
-    // while we still need more mixins
-    while (res.outs.size() < req.outs_count)
-    {
-      // if we've gone through every possible output, we've gotten all we can
-      if (seen_indices.size() == num_outs)
-      {
-        break;
-      }
-
-      // get a random output index from the DB.  If we've already seen it,
-      // return to the top of the loop and try again, otherwise add it to the
-      // list of output indices we've seen.
-
-      // triangular distribution over [a,b) with a=0, mode c=b=up_index_limit
-      uint64_t r = crypto::rand<uint64_t>() % ((uint64_t)1 << 53);
-      double frac = std::sqrt((double)r / ((uint64_t)1 << 53));
-      uint64_t i = (uint64_t)(frac*num_outs);
-      // just in case rounding up to 1 occurs after sqrt
-      if (i == num_outs)
-        --i;
-
-      if (seen_indices.count(i))
-      {
-        continue;
-      }
-      seen_indices.emplace(i);
-
-      // get tx_hash, tx_out_index from DB
-      tx_out_index toi = m_db->get_output_tx_and_index(0, i);
-
-      // if the output's transaction is unlocked, add the output's index to
-      // our list.
-      if (is_tx_spendtime_unlocked(m_db->get_tx_unlock_time(toi.first)))
-      {
-        add_out_to_get_rct_random_outs(res.outs, 0, i);
-      }
-    }
-  }
-
-  if (res.outs.size() < req.outs_count)
-    return false;
-#if 0
-  // if we do not have enough RCT inputs, we can pick from the non RCT ones
-  // which will have a zero mask
-  if (res.outs.size() < req.outs_count)
-  {
-    LOG_PRINT_L0("Out of RCT inputs (" << res.outs.size() << "/" << req.outs_count << "), using regular ones");
-
-    // TODO: arbitrary selection, needs better
-    COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::request req2 = AUTO_VAL_INIT(req2);
-    COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::response res2 = AUTO_VAL_INIT(res2);
-    req2.outs_count = req.outs_count - res.outs.size();
-    static const uint64_t amounts[] = {1, 10, 20, 50, 100, 200, 500, 1000, 10000};
-    for (uint64_t a: amounts)
-      req2.amounts.push_back(a);
-    if (!get_random_outs_for_amounts(req2, res2))
-      return false;
-
-    // pick random ones from there
-    while (res.outs.size() < req.outs_count)
-    {
-      int list_idx = rand() % (sizeof(amounts)/sizeof(amounts[0]));
-      if (!res2.outs[list_idx].outs.empty())
-      {
-        const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::out_entry oe = res2.outs[list_idx].outs.back();
-        res2.outs[list_idx].outs.pop_back();
-        add_out_to_get_rct_random_outs(res.outs, res2.outs[list_idx].amount, oe.global_amount_index);
-      }
-    }
-  }
-#endif
-
-  return true;
-}
 //------------------------------------------------------------------
 bool Blockchain::get_outs(const COMMAND_RPC_GET_OUTPUTS_BIN::request& req, COMMAND_RPC_GET_OUTPUTS_BIN::response& res) const
 {

src/cryptonote_core/blockchain.h

@@ -446,16 +446,6 @@ namespace cryptonote
      */
     uint64_t get_num_mature_outputs(uint64_t amount) const;
 
-    /**
-     * @brief get random outputs (indices) for an amount
-     *
-     * @param amount the amount
-     * @param count the number of random outputs to choose
-     *
-     * @return the outputs' amount-global indices
-     */
-    std::vector<uint64_t> get_random_outputs(uint64_t amount, uint64_t count) const;
-
     /**
      * @brief get the public key for an output
      *
@@ -466,22 +456,6 @@ namespace cryptonote
      */
     crypto::public_key get_output_key(uint64_t amount, uint64_t global_index) const;
 
-    /**
-     * @brief gets random outputs to mix with
-     *
-     * This function takes an RPC request for outputs to mix with
-     * and creates an RPC response with the resultant output indices.
-     *
-     * Outputs to mix with are randomly selected from the utxo set
-     * for each output amount in the request.
-     *
-     * @param req the output amounts and number of mixins to select
-     * @param res return-by-reference the resultant output indices
-     *
-     * @return true
-     */
-    bool get_random_outs_for_amounts(const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::request& req, COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::response& res) const;
-
     /**
      * @brief gets specific outputs to mix with
      *
@@ -508,23 +482,6 @@ namespace cryptonote
      */
     void get_output_key_mask_unlocked(const uint64_t& amount, const uint64_t& index, crypto::public_key& key, rct::key& mask, bool& unlocked) const;
 
-    /**
-     * @brief gets random ringct outputs to mix with
-     *
-     * This function takes an RPC request for outputs to mix with
-     * and creates an RPC response with the resultant output indices
-     * and the matching keys.
-     *
-     * Outputs to mix with are randomly selected from the utxo set
-     * for each output amount in the request.
-     *
-     * @param req the output amounts and number of mixins to select
-     * @param res return-by-reference the resultant output indices
-     *
-     * @return true
-     */
-    bool get_random_rct_outs(const COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS::request& req, COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS::response& res) const;
-
     /**
      * @brief gets per block distribution of outputs of a given amount
      *
@@ -1271,24 +1228,6 @@ namespace cryptonote
      */
     void get_last_n_blocks_weights(std::vector<size_t>& weights, size_t count) const;
 
-    /**
-     * @brief adds the given output to the requested set of random outputs
-     *
-     * @param result_outs return-by-reference the set the output is to be added to
-     * @param amount the output amount
-     * @param i the output index (indexed to amount)
-     */
-    void add_out_to_get_random_outs(COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::outs_for_amount& result_outs, uint64_t amount, size_t i) const;
-
-    /**
-     * @brief adds the given output to the requested set of random ringct outputs
-     *
-     * @param outs return-by-reference the set the output is to be added to
-     * @param amount the output amount (0 for rct inputs)
-     * @param i the rct output index
-     */
-    void add_out_to_get_rct_random_outs(std::list<COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS::out_entry>& outs, uint64_t amount, size_t i) const;
-
     /**
      * @brief checks if a transaction is unlocked (its outputs spendable)
      *

src/cryptonote_core/cryptonote_core.cpp

@@ -1181,21 +1181,11 @@ namespace cryptonote
     return m_blockchain_storage.find_blockchain_supplement(req_start_block, qblock_ids, blocks, total_height, start_height, pruned, get_miner_tx_hash, max_count);
   }
   //-----------------------------------------------------------------------------------------------
-  bool core::get_random_outs_for_amounts(const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::request& req, COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::response& res) const
-  {
-    return m_blockchain_storage.get_random_outs_for_amounts(req, res);
-  }
-  //-----------------------------------------------------------------------------------------------
   bool core::get_outs(const COMMAND_RPC_GET_OUTPUTS_BIN::request& req, COMMAND_RPC_GET_OUTPUTS_BIN::response& res) const
   {
     return m_blockchain_storage.get_outs(req, res);
   }
   //-----------------------------------------------------------------------------------------------
-  bool core::get_random_rct_outs(const COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS::request& req, COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS::response& res) const
-  {
-    return m_blockchain_storage.get_random_rct_outs(req, res);
-  }
-  //-----------------------------------------------------------------------------------------------
   bool core::get_output_distribution(uint64_t amount, uint64_t from_height, uint64_t to_height, uint64_t &start_height, std::vector<uint64_t> &distribution, uint64_t &base) const
   {
     return m_blockchain_storage.get_output_distribution(amount, from_height, to_height, start_height, distribution, base);

src/cryptonote_core/cryptonote_core.h

@@ -550,13 +550,6 @@ namespace cryptonote
       */
      difficulty_type get_block_cumulative_difficulty(uint64_t height) const;
 
-     /**
-      * @copydoc Blockchain::get_random_outs_for_amounts
-      *
-      * @note see Blockchain::get_random_outs_for_amounts
-      */
-     bool get_random_outs_for_amounts(const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::request& req, COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::response& res) const;
-
      /**
       * @copydoc Blockchain::get_outs
       *
@@ -564,14 +557,6 @@ namespace cryptonote
       */
      bool get_outs(const COMMAND_RPC_GET_OUTPUTS_BIN::request& req, COMMAND_RPC_GET_OUTPUTS_BIN::response& res) const;
 
-     /**
-      *
-      * @copydoc Blockchain::get_random_rct_outs
-      *
-      * @note see Blockchain::get_random_rct_outs
-      */
-     bool get_random_rct_outs(const COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS::request& req, COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS::response& res) const;
-
      /**
       * @copydoc Blockchain::get_output_distribution
       *

src/rpc/core_rpc_server.cpp

@@ -364,49 +364,6 @@ namespace cryptonote
     return true;
   }
   //------------------------------------------------------------------------------------------------------------------------------
-  bool core_rpc_server::on_get_random_outs(const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::request& req, COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::response& res)
-  {
-    PERF_TIMER(on_get_random_outs);
-    bool r;
-    if (use_bootstrap_daemon_if_necessary<COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS>(invoke_http_mode::BIN, "/getrandom_outs.bin", req, res, r))
-      return r;
-
-    res.status = "Failed";
-
-    if (m_restricted)
-    {
-      if (req.amounts.size() > 100 || req.outs_count > MAX_RESTRICTED_FAKE_OUTS_COUNT)
-      {
-        res.status = "Too many outs requested";
-        return true;
-      }
-    }
-
-    if(!m_core.get_random_outs_for_amounts(req, res))
-    {
-      return true;
-    }
-
-    res.status = CORE_RPC_STATUS_OK;
-    std::stringstream ss;
-    typedef COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::outs_for_amount outs_for_amount;
-    typedef COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::out_entry out_entry;
-    std::for_each(res.outs.begin(), res.outs.end(), [&](outs_for_amount& ofa)
-    {
-      ss << "[" << ofa.amount << "]:";
-      CHECK_AND_ASSERT_MES(ofa.outs.size(), ;, "internal error: ofa.outs.size() is empty for amount " << ofa.amount);
-      std::for_each(ofa.outs.begin(), ofa.outs.end(), [&](out_entry& oe)
-          {
-            ss << oe.global_amount_index << " ";
-          });
-      ss << ENDL;
-    });
-    std::string s = ss.str();
-    LOG_PRINT_L2("COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS: " << ENDL << s);
-    res.status = CORE_RPC_STATUS_OK;
-    return true;
-  }
-  //------------------------------------------------------------------------------------------------------------------------------
   bool core_rpc_server::on_get_outs_bin(const COMMAND_RPC_GET_OUTPUTS_BIN::request& req, COMMAND_RPC_GET_OUTPUTS_BIN::response& res)
   {
     PERF_TIMER(on_get_outs_bin);
@@ -476,34 +433,6 @@ namespace cryptonote
     return true;
   }
   //------------------------------------------------------------------------------------------------------------------------------
-  bool core_rpc_server::on_get_random_rct_outs(const COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS::request& req, COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS::response& res)
-  {
-    PERF_TIMER(on_get_random_rct_outs);
-    bool r;
-    if (use_bootstrap_daemon_if_necessary<COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS>(invoke_http_mode::BIN, "/getrandom_rctouts.bin", req, res, r))
-      return r;
-
-    res.status = "Failed";
-    if(!m_core.get_random_rct_outs(req, res))
-    {
-      return true;
-    }
-
-    res.status = CORE_RPC_STATUS_OK;
-    std::stringstream ss;
-    typedef COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS::out_entry out_entry;
-    CHECK_AND_ASSERT_MES(res.outs.size(), true, "internal error: res.outs.size() is empty");
-    std::for_each(res.outs.begin(), res.outs.end(), [&](out_entry& oe)
-      {
-        ss << oe.global_amount_index << " ";
-      });
-    ss << ENDL;
-    std::string s = ss.str();
-    LOG_PRINT_L2("COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS: " << ENDL << s);
-    res.status = CORE_RPC_STATUS_OK;
-    return true;
-  }
-  //------------------------------------------------------------------------------------------------------------------------------
   bool core_rpc_server::on_get_indexes(const COMMAND_RPC_GET_TX_GLOBAL_OUTPUTS_INDEXES::request& req, COMMAND_RPC_GET_TX_GLOBAL_OUTPUTS_INDEXES::response& res)
   {
     PERF_TIMER(on_get_indexes);

src/rpc/core_rpc_server.h

@@ -87,11 +87,7 @@ namespace cryptonote
       MAP_URI_AUTO_BIN2("/get_hashes.bin", on_get_hashes, COMMAND_RPC_GET_HASHES_FAST)
       MAP_URI_AUTO_BIN2("/gethashes.bin", on_get_hashes, COMMAND_RPC_GET_HASHES_FAST)
       MAP_URI_AUTO_BIN2("/get_o_indexes.bin", on_get_indexes, COMMAND_RPC_GET_TX_GLOBAL_OUTPUTS_INDEXES)      
-      MAP_URI_AUTO_BIN2("/get_random_outs.bin", on_get_random_outs, COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS)
-      MAP_URI_AUTO_BIN2("/getrandom_outs.bin", on_get_random_outs, COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS)      
       MAP_URI_AUTO_BIN2("/get_outs.bin", on_get_outs_bin, COMMAND_RPC_GET_OUTPUTS_BIN)
-      MAP_URI_AUTO_BIN2("/get_random_rctouts.bin", on_get_random_rct_outs, COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS)
-      MAP_URI_AUTO_BIN2("/getrandom_rctouts.bin", on_get_random_rct_outs, COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS)
       MAP_URI_AUTO_JON2("/get_transactions", on_get_transactions, COMMAND_RPC_GET_TRANSACTIONS)
       MAP_URI_AUTO_JON2("/gettransactions", on_get_transactions, COMMAND_RPC_GET_TRANSACTIONS)
       MAP_URI_AUTO_JON2("/get_alt_blocks_hashes", on_get_alt_blocks_hashes, COMMAND_RPC_GET_ALT_BLOCKS_HASHES)
@@ -171,10 +167,8 @@ namespace cryptonote
     bool on_start_mining(const COMMAND_RPC_START_MINING::request& req, COMMAND_RPC_START_MINING::response& res);
     bool on_stop_mining(const COMMAND_RPC_STOP_MINING::request& req, COMMAND_RPC_STOP_MINING::response& res);
     bool on_mining_status(const COMMAND_RPC_MINING_STATUS::request& req, COMMAND_RPC_MINING_STATUS::response& res);
-    bool on_get_random_outs(const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::request& req, COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::response& res);        
     bool on_get_outs_bin(const COMMAND_RPC_GET_OUTPUTS_BIN::request& req, COMMAND_RPC_GET_OUTPUTS_BIN::response& res);        
     bool on_get_outs(const COMMAND_RPC_GET_OUTPUTS::request& req, COMMAND_RPC_GET_OUTPUTS::response& res);        
-    bool on_get_random_rct_outs(const COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS::request& req, COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS::response& res);
     bool on_get_info(const COMMAND_RPC_GET_INFO::request& req, COMMAND_RPC_GET_INFO::response& res);
     bool on_save_bc(const COMMAND_RPC_SAVE_BC::request& req, COMMAND_RPC_SAVE_BC::response& res);
     bool on_get_peer_list(const COMMAND_RPC_GET_PEER_LIST::request& req, COMMAND_RPC_GET_PEER_LIST::response& res);

src/rpc/core_rpc_server_commands_defs.h

@@ -680,50 +680,6 @@ namespace cryptonote
     };
   };
   //-----------------------------------------------
-  struct COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS
-  {
-    struct request
-    {
-      std::vector<uint64_t> amounts;
-      uint64_t              outs_count;
-      BEGIN_KV_SERIALIZE_MAP()
-        KV_SERIALIZE(amounts)
-        KV_SERIALIZE(outs_count)
-      END_KV_SERIALIZE_MAP()
-    };
-
-#pragma pack (push, 1)
-    struct out_entry
-    {
-      uint64_t global_amount_index;
-      crypto::public_key out_key;
-    };
-#pragma pack(pop)
-
-    struct outs_for_amount
-    {
-      uint64_t amount;
-      std::list<out_entry> outs;
-
-      BEGIN_KV_SERIALIZE_MAP()
-        KV_SERIALIZE(amount)
-        KV_SERIALIZE_CONTAINER_POD_AS_BLOB(outs)
-      END_KV_SERIALIZE_MAP()
-    };
-
-    struct response
-    {
-      std::vector<outs_for_amount> outs;
-      std::string status;
-      bool untrusted;
-      BEGIN_KV_SERIALIZE_MAP()
-        KV_SERIALIZE(outs)
-        KV_SERIALIZE(status)
-        KV_SERIALIZE(untrusted)
-      END_KV_SERIALIZE_MAP()
-    };
-  };
-  //-----------------------------------------------
   struct get_outputs_out
   {
     uint64_t amount;
@@ -818,39 +774,6 @@ namespace cryptonote
       END_KV_SERIALIZE_MAP()
     };
   };
-
-  struct COMMAND_RPC_GET_RANDOM_RCT_OUTPUTS
-  {
-    struct request
-    {
-      uint64_t outs_count;
-      BEGIN_KV_SERIALIZE_MAP()
-        KV_SERIALIZE(outs_count)
-      END_KV_SERIALIZE_MAP()
-    };
-
-#pragma pack (push, 1)
-    struct out_entry
-    {
-      uint64_t amount;
-      uint64_t global_amount_index;
-      crypto::public_key out_key;
-      rct::key commitment;
-    };
-#pragma pack(pop)
-
-    struct response
-    {
-      std::list<out_entry> outs;
-      std::string status;
-      bool untrusted;
-      BEGIN_KV_SERIALIZE_MAP()
-        KV_SERIALIZE_CONTAINER_POD_AS_BLOB(outs)
-        KV_SERIALIZE(status)
-        KV_SERIALIZE(untrusted)
-      END_KV_SERIALIZE_MAP()
-    };
-  };
   //-----------------------------------------------
   struct COMMAND_RPC_SEND_RAW_TX
   {

src/rpc/daemon_handler.cpp

@@ -260,44 +260,6 @@ namespace rpc
 
   }
 
-  //TODO: handle "restricted" RPC
-  void DaemonHandler::handle(const GetRandomOutputsForAmounts::Request& req, GetRandomOutputsForAmounts::Response& res)
-  {
-    auto& chain = m_core.get_blockchain_storage();
-
-    try
-    {
-      for (const uint64_t& amount : req.amounts)
-      {
-        std::vector<uint64_t> indices = chain.get_random_outputs(amount, req.count);
-
-        outputs_for_amount ofa;
-
-        ofa.resize(indices.size());
-
-        for (size_t i = 0; i < indices.size(); i++)
-        {
-          crypto::public_key key = chain.get_output_key(amount, indices[i]);
-          ofa[i].amount_index = indices[i];
-          ofa[i].key = key;
-        }
-
-        amount_with_random_outputs amt;
-        amt.amount = amount;
-        amt.outputs = ofa;
-
-        res.amounts_with_outputs.push_back(amt);
-      }
-
-      res.status = Message::STATUS_OK;
-    }
-    catch (const std::exception& e)
-    {
-      res.status = Message::STATUS_FAILED;
-      res.error_details = e.what();
-    }
-  }
-
   void DaemonHandler::handle(const SendRawTx::Request& req, SendRawTx::Response& res)
   {
     auto tx_blob = cryptonote::tx_to_blob(req.tx);
@@ -824,7 +786,6 @@ namespace rpc
       REQ_RESP_TYPES_MACRO(request_type, GetTransactions, req_json, resp_message, handle);
       REQ_RESP_TYPES_MACRO(request_type, KeyImagesSpent, req_json, resp_message, handle);
       REQ_RESP_TYPES_MACRO(request_type, GetTxGlobalOutputIndices, req_json, resp_message, handle);
-      REQ_RESP_TYPES_MACRO(request_type, GetRandomOutputsForAmounts, req_json, resp_message, handle);
       REQ_RESP_TYPES_MACRO(request_type, SendRawTx, req_json, resp_message, handle);
       REQ_RESP_TYPES_MACRO(request_type, GetInfo, req_json, resp_message, handle);
       REQ_RESP_TYPES_MACRO(request_type, StartMining, req_json, resp_message, handle);

src/rpc/daemon_handler.h

@@ -66,8 +66,6 @@ class DaemonHandler : public RpcHandler
 
     void handle(const GetTxGlobalOutputIndices::Request& req, GetTxGlobalOutputIndices::Response& res);
 
-    void handle(const GetRandomOutputsForAmounts::Request& req, GetRandomOutputsForAmounts::Response& res);
-
     void handle(const SendRawTx::Request& req, SendRawTx::Response& res);
 
     void handle(const StartMining::Request& req, StartMining::Response& res);

src/rpc/daemon_messages.cpp

@@ -41,7 +41,6 @@ const char* const GetHashesFast::name = "get_hashes_fast";
 const char* const GetTransactions::name = "get_transactions";
 const char* const KeyImagesSpent::name = "key_images_spent";
 const char* const GetTxGlobalOutputIndices::name = "get_tx_global_output_indices";
-const char* const GetRandomOutputsForAmounts::name = "get_random_outputs_for_amounts";
 const char* const SendRawTx::name = "send_raw_tx";
 const char* const StartMining::name = "start_mining";
 const char* const StopMining::name = "stop_mining";
@@ -273,42 +272,6 @@ void GetTxGlobalOutputIndices::Response::fromJson(rapidjson::Value& val)
   GET_FROM_JSON_OBJECT(val, output_indices, output_indices);
 }
 
-
-rapidjson::Value GetRandomOutputsForAmounts::Request::toJson(rapidjson::Document& doc) const
-{
-  auto val = Message::toJson(doc);
-
-  auto& al = doc.GetAllocator();
-
-  INSERT_INTO_JSON_OBJECT(val, doc, amounts, amounts);
-  INSERT_INTO_JSON_OBJECT(val, doc, count, count);
-
-  return val;
-}
-
-void GetRandomOutputsForAmounts::Request::fromJson(rapidjson::Value& val)
-{
-  GET_FROM_JSON_OBJECT(val, amounts, amounts);
-  GET_FROM_JSON_OBJECT(val, count, count);
-}
-
-rapidjson::Value GetRandomOutputsForAmounts::Response::toJson(rapidjson::Document& doc) const
-{
-  auto val = Message::toJson(doc);
-
-  auto& al = doc.GetAllocator();
-
-  INSERT_INTO_JSON_OBJECT(val, doc, amounts_with_outputs, amounts_with_outputs);
-
-  return val;
-}
-
-void GetRandomOutputsForAmounts::Response::fromJson(rapidjson::Value& val)
-{
-  GET_FROM_JSON_OBJECT(val, amounts_with_outputs, amounts_with_outputs);
-}
-
-
 rapidjson::Value SendRawTx::Request::toJson(rapidjson::Document& doc) const
 {
   auto val = Message::toJson(doc);

src/simplewallet/simplewallet.cpp

@@ -445,7 +445,7 @@ namespace
       LOG_ERROR("RPC error: " << e.to_string());
       fail_msg_writer() << tr("RPC error: ") << e.what();
     }
-    catch (const tools::error::get_random_outs_error &e)
+    catch (const tools::error::get_outs_error &e)
     {
       fail_msg_writer() << tr("failed to get random outputs to mix: ") << e.what();
     }
@@ -4856,15 +4856,12 @@ bool simple_wallet::transfer_main(int transfer_type, const std::vector<std::stri
         unlock_block = bc_height + locked_blocks;
         ptx_vector = m_wallet->create_transactions_2(dsts, fake_outs_count, unlock_block /* unlock_time */, priority, extra, m_current_subaddress_account, subaddr_indices);
       break;
+      default:
+        LOG_ERROR("Unknown transfer method, using default");
+        /* FALLTHRU */
       case TransferNew:
         ptx_vector = m_wallet->create_transactions_2(dsts, fake_outs_count, 0 /* unlock_time */, priority, extra, m_current_subaddress_account, subaddr_indices);
       break;
-      default:
-        LOG_ERROR("Unknown transfer method, using original");
-        /* FALLTHRU */
-      case TransferOriginal:
-        ptx_vector = m_wallet->create_transactions(dsts, fake_outs_count, 0 /* unlock_time */, priority, extra);
-        break;
     }
 
     if (ptx_vector.empty())

src/wallet/api/wallet.cpp

@@ -1381,8 +1381,8 @@ PendingTransaction *WalletImpl::createTransaction(const string &dst_addr, const
             setStatusError(tr("no connection to daemon. Please make sure daemon is running."));
         } catch (const tools::error::wallet_rpc_error& e) {
             setStatusError(tr("RPC error: ") +  e.to_string());
-        } catch (const tools::error::get_random_outs_error &e) {
+        } catch (const tools::error::get_outs_error &e) {
-            setStatusError((boost::format(tr("failed to get random outputs to mix: %s")) % e.what()).str());
+            setStatusError((boost::format(tr("failed to get outputs to mix: %s")) % e.what()).str());
         } catch (const tools::error::not_enough_unlocked_money& e) {
             std::ostringstream writer;
 
@@ -1463,8 +1463,8 @@ PendingTransaction *WalletImpl::createSweepUnmixableTransaction()
             setStatusError(tr("no connection to daemon. Please make sure daemon is running."));
         } catch (const tools::error::wallet_rpc_error& e) {
             setStatusError(tr("RPC error: ") +  e.to_string());
-        } catch (const tools::error::get_random_outs_error&) {
+        } catch (const tools::error::get_outs_error&) {
-            setStatusError(tr("failed to get random outputs to mix"));
+            setStatusError(tr("failed to get outputs to mix"));
         } catch (const tools::error::not_enough_unlocked_money& e) {
             setStatusError("");
             std::ostringstream writer;

src/wallet/wallet2.cpp

@@ -4992,69 +4992,6 @@ void wallet2::add_unconfirmed_tx(const cryptonote::transaction& tx, uint64_t amo
   }
 }
 
-//----------------------------------------------------------------------------------------------------
-void wallet2::transfer(const std::vector<cryptonote::tx_destination_entry>& dsts, const size_t fake_outs_count, const std::vector<size_t> &unused_transfers_indices,
-                       uint64_t unlock_time, uint64_t fee, const std::vector<uint8_t>& extra, cryptonote::transaction& tx, pending_tx& ptx)
-{
-  transfer(dsts, fake_outs_count, unused_transfers_indices, unlock_time, fee, extra, detail::digit_split_strategy, tx_dust_policy(::config::DEFAULT_DUST_THRESHOLD), tx, ptx);
-}
-//----------------------------------------------------------------------------------------------------
-void wallet2::transfer(const std::vector<cryptonote::tx_destination_entry>& dsts, const size_t fake_outs_count, const std::vector<size_t> &unused_transfers_indices,
-                       uint64_t unlock_time, uint64_t fee, const std::vector<uint8_t>& extra)
-{
-  cryptonote::transaction tx;
-  pending_tx ptx;
-  transfer(dsts, fake_outs_count, unused_transfers_indices, unlock_time, fee, extra, tx, ptx);
-}
-
-namespace {
-// split_amounts(vector<cryptonote::tx_destination_entry> dsts, size_t num_splits)
-//
-// split amount for each dst in dsts into num_splits parts
-// and make num_splits new vector<crypt...> instances to hold these new amounts
-std::vector<std::vector<cryptonote::tx_destination_entry>> split_amounts(
-    std::vector<cryptonote::tx_destination_entry> dsts, size_t num_splits)
-{
-  std::vector<std::vector<cryptonote::tx_destination_entry>> retVal;
-
-  if (num_splits <= 1)
-  {
-    retVal.push_back(dsts);
-    return retVal;
-  }
-
-  // for each split required
-  for (size_t i=0; i < num_splits; i++)
-  {
-    std::vector<cryptonote::tx_destination_entry> new_dsts;
-
-    // for each destination
-    for (size_t j=0; j < dsts.size(); j++)
-    {
-      cryptonote::tx_destination_entry de;
-      uint64_t amount;
-
-      amount = dsts[j].amount;
-      amount = amount / num_splits;
-
-      // if last split, add remainder
-      if (i + 1 == num_splits)
-      {
-        amount += dsts[j].amount % num_splits;
-      }
-      
-      de.addr = dsts[j].addr;
-      de.amount = amount;
-
-      new_dsts.push_back(de);
-    }
-
-    retVal.push_back(new_dsts);
-  }
-
-  return retVal;
-}
-} // anonymous namespace
 //----------------------------------------------------------------------------------------------------
 crypto::hash wallet2::get_payment_id(const pending_tx &ptx) const
 {
@@ -6055,116 +5992,6 @@ uint32_t wallet2::adjust_priority(uint32_t priority)
   return priority;
 }
 //----------------------------------------------------------------------------------------------------
-// separated the call(s) to wallet2::transfer into their own function
-//
-// this function will make multiple calls to wallet2::transfer if multiple
-// transactions will be required
-std::vector<wallet2::pending_tx> wallet2::create_transactions(std::vector<cryptonote::tx_destination_entry> dsts, const size_t fake_outs_count, const uint64_t unlock_time, uint32_t priority, const std::vector<uint8_t>& extra)
-{
-  const std::vector<size_t> unused_transfers_indices = select_available_outputs_from_histogram(fake_outs_count + 1, true, true, true);
-
-  const uint64_t base_fee = get_base_fee();
-  const uint64_t fee_multiplier = get_fee_multiplier(priority, get_fee_algorithm());
-  const bool use_per_byte_fee = use_fork_rules(HF_VERSION_PER_BYTE_FEE);
-  const uint64_t fee_quantization_mask = get_fee_quantization_mask();
-
-  // failsafe split attempt counter
-  size_t attempt_count = 0;
-
-  for(attempt_count = 1; ;attempt_count++)
-  {
-    size_t num_tx = 0.5 + pow(1.7,attempt_count-1);
-
-    auto split_values = split_amounts(dsts, num_tx);
-
-    // Throw if split_amounts comes back with a vector of size different than it should
-    if (split_values.size() != num_tx)
-    {
-      throw std::runtime_error("Splitting transactions returned a number of potential tx not equal to what was requested");
-    }
-
-    std::vector<pending_tx> ptx_vector;
-    try
-    {
-      // for each new destination vector (i.e. for each new tx)
-      for (auto & dst_vector : split_values)
-      {
-        cryptonote::transaction tx;
-        pending_tx ptx;
-
-	// loop until fee is met without increasing tx size to next KB boundary.
-	uint64_t needed_fee = estimate_fee(use_per_byte_fee, false, unused_transfers_indices.size(), fake_outs_count, dst_vector.size()+1, extra.size(), false, base_fee, fee_multiplier, fee_quantization_mask);
-	do
-	{
-	  transfer(dst_vector, fake_outs_count, unused_transfers_indices, unlock_time, needed_fee, extra, tx, ptx);
-	  auto txBlob = t_serializable_object_to_blob(ptx.tx);
-	  needed_fee = calculate_fee(use_per_byte_fee, ptx.tx, txBlob.size(), base_fee, fee_multiplier, fee_quantization_mask);
-	} while (ptx.fee < needed_fee);
-
-        ptx_vector.push_back(ptx);
-
-        // mark transfers to be used as "spent"
-        for(size_t idx: ptx.selected_transfers)
-        {
-          set_spent(idx, 0);
-        }
-      }
-
-      // if we made it this far, we've selected our transactions.  committing them will mark them spent,
-      // so this is a failsafe in case they don't go through
-      // unmark pending tx transfers as spent
-      for (auto & ptx : ptx_vector)
-      {
-        // mark transfers to be used as not spent
-        for(size_t idx2: ptx.selected_transfers)
-        {
-          set_unspent(idx2);
-        }
-
-      }
-
-      // if we made it this far, we're OK to actually send the transactions
-      return ptx_vector;
-
-    }
-    // only catch this here, other exceptions need to pass through to the calling function
-    catch (const tools::error::tx_too_big& e)
-    {
-
-      // unmark pending tx transfers as spent
-      for (auto & ptx : ptx_vector)
-      {
-        // mark transfers to be used as not spent
-        for(size_t idx2: ptx.selected_transfers)
-        {
-          set_unspent(idx2);
-        }
-      }
-
-      if (attempt_count >= MAX_SPLIT_ATTEMPTS)
-      {
-        throw;
-      }
-    }
-    catch (...)
-    {
-      // in case of some other exception, make sure any tx in queue are marked unspent again
-
-      // unmark pending tx transfers as spent
-      for (auto & ptx : ptx_vector)
-      {
-        // mark transfers to be used as not spent
-        for(size_t idx2: ptx.selected_transfers)
-        {
-          set_unspent(idx2);
-        }
-      }
-
-      throw;
-    }
-  }
-}
-
 bool wallet2::set_ring_database(const std::string &filename)
 {
   m_ring_database = filename;
@@ -6934,7 +6761,7 @@ void wallet2::get_outs(std::vector<std::vector<tools::wallet2::get_outs_entry>>
     m_daemon_rpc_mutex.unlock();
     THROW_WALLET_EXCEPTION_IF(!r, error::no_connection_to_daemon, "get_outs.bin");
     THROW_WALLET_EXCEPTION_IF(daemon_resp.status == CORE_RPC_STATUS_BUSY, error::daemon_busy, "get_outs.bin");
-    THROW_WALLET_EXCEPTION_IF(daemon_resp.status != CORE_RPC_STATUS_OK, error::get_random_outs_error, daemon_resp.status);
+    THROW_WALLET_EXCEPTION_IF(daemon_resp.status != CORE_RPC_STATUS_OK, error::get_outs_error, daemon_resp.status);
     THROW_WALLET_EXCEPTION_IF(daemon_resp.outs.size() != req.outputs.size(), error::wallet_internal_error,
       "daemon returned wrong response for get_outs.bin, wrong amounts count = " +
       std::to_string(daemon_resp.outs.size()) + ", expected " +  std::to_string(req.outputs.size()));

src/wallet/wallet2.h

@@ -713,12 +713,6 @@ namespace tools
     uint64_t balance_all() const;
     uint64_t unlocked_balance_all() const;
     template<typename T>
-    void transfer(const std::vector<cryptonote::tx_destination_entry>& dsts, const size_t fake_outputs_count, const std::vector<size_t> &unused_transfers_indices, uint64_t unlock_time, uint64_t fee, const std::vector<uint8_t>& extra, T destination_split_strategy, const tx_dust_policy& dust_policy);
-    template<typename T>
-    void transfer(const std::vector<cryptonote::tx_destination_entry>& dsts, const size_t fake_outputs_count, const std::vector<size_t> &unused_transfers_indices, uint64_t unlock_time, uint64_t fee, const std::vector<uint8_t>& extra, T destination_split_strategy, const tx_dust_policy& dust_policy, cryptonote::transaction& tx, pending_tx& ptx);
-    void transfer(const std::vector<cryptonote::tx_destination_entry>& dsts, const size_t fake_outputs_count, const std::vector<size_t> &unused_transfers_indices, uint64_t unlock_time, uint64_t fee, const std::vector<uint8_t>& extra);
-    void transfer(const std::vector<cryptonote::tx_destination_entry>& dsts, const size_t fake_outputs_count, const std::vector<size_t> &unused_transfers_indices, uint64_t unlock_time, uint64_t fee, const std::vector<uint8_t>& extra, cryptonote::transaction& tx, pending_tx& ptx);
-    template<typename T>
     void transfer_selected(const std::vector<cryptonote::tx_destination_entry>& dsts, const std::vector<size_t>& selected_transfers, size_t fake_outputs_count,
       std::vector<std::vector<tools::wallet2::get_outs_entry>> &outs,
       uint64_t unlock_time, uint64_t fee, const std::vector<uint8_t>& extra, T destination_split_strategy, const tx_dust_policy& dust_policy, cryptonote::transaction& tx, pending_tx &ptx);
@@ -746,7 +740,6 @@ namespace tools
     bool parse_unsigned_tx_from_str(const std::string &unsigned_tx_st, unsigned_tx_set &exported_txs) const;
     bool load_tx(const std::string &signed_filename, std::vector<tools::wallet2::pending_tx> &ptx, std::function<bool(const signed_tx_set&)> accept_func = NULL);
     bool parse_tx_from_str(const std::string &signed_tx_st, std::vector<tools::wallet2::pending_tx> &ptx, std::function<bool(const signed_tx_set &)> accept_func);
-    std::vector<pending_tx> create_transactions(std::vector<cryptonote::tx_destination_entry> dsts, const size_t fake_outs_count, const uint64_t unlock_time, uint32_t priority, const std::vector<uint8_t>& extra);
     std::vector<wallet2::pending_tx> create_transactions_2(std::vector<cryptonote::tx_destination_entry> dsts, const size_t fake_outs_count, const uint64_t unlock_time, uint32_t priority, const std::vector<uint8_t>& extra, uint32_t subaddr_account, std::set<uint32_t> subaddr_indices);     // pass subaddr_indices by value on purpose
     std::vector<wallet2::pending_tx> create_transactions_all(uint64_t below, const cryptonote::account_public_address &address, bool is_subaddress, const size_t fake_outs_count, const uint64_t unlock_time, uint32_t priority, const std::vector<uint8_t>& extra, uint32_t subaddr_account, std::set<uint32_t> subaddr_indices);
     std::vector<wallet2::pending_tx> create_transactions_single(const crypto::key_image &ki, const cryptonote::account_public_address &address, bool is_subaddress, const size_t fake_outs_count, const uint64_t unlock_time, uint32_t priority, const std::vector<uint8_t>& extra);
@@ -1817,198 +1810,4 @@ namespace tools
     //----------------------------------------------------------------------------------------------------
   }
   //----------------------------------------------------------------------------------------------------
-  template<typename T>
-  void wallet2::transfer(const std::vector<cryptonote::tx_destination_entry>& dsts, const size_t fake_outs_count, const std::vector<size_t> &unused_transfers_indices,
-    uint64_t unlock_time, uint64_t fee, const std::vector<uint8_t>& extra, T destination_split_strategy, const tx_dust_policy& dust_policy)
-  {
-    pending_tx ptx;
-    cryptonote::transaction tx;
-    transfer(dsts, fake_outs_count, unused_transfers_indices, unlock_time, fee, extra, destination_split_strategy, dust_policy, tx, ptx);
-  }
-
-  template<typename T>
-  void wallet2::transfer(const std::vector<cryptonote::tx_destination_entry>& dsts, const size_t fake_outputs_count, const std::vector<size_t> &unused_transfers_indices,
-    uint64_t unlock_time, uint64_t fee, const std::vector<uint8_t>& extra, T destination_split_strategy, const tx_dust_policy& dust_policy, cryptonote::transaction& tx, pending_tx &ptx)
-  {
-    using namespace cryptonote;
-    // throw if attempting a transaction with no destinations
-    THROW_WALLET_EXCEPTION_IF(dsts.empty(), error::zero_destination);
-
-    THROW_WALLET_EXCEPTION_IF(m_multisig, error::wallet_internal_error, "Multisig wallets cannot spend non rct outputs");
-
-    uint64_t upper_transaction_weight_limit = get_upper_transaction_weight_limit();
-    uint64_t needed_money = fee;
-
-    // calculate total amount being sent to all destinations
-    // throw if total amount overflows uint64_t
-    for(auto& dt: dsts)
-    {
-      THROW_WALLET_EXCEPTION_IF(0 == dt.amount, error::zero_destination);
-      needed_money += dt.amount;
-      THROW_WALLET_EXCEPTION_IF(needed_money < dt.amount, error::tx_sum_overflow, dsts, fee, m_nettype);
-    }
-
-    // randomly select inputs for transaction
-    // throw if requested send amount is greater than (unlocked) amount available to send
-    std::vector<size_t> selected_transfers;
-    uint64_t found_money = select_transfers(needed_money, unused_transfers_indices, selected_transfers);
-    THROW_WALLET_EXCEPTION_IF(found_money < needed_money, error::not_enough_unlocked_money, found_money, needed_money - fee, fee);
-
-    uint32_t subaddr_account = m_transfers[*selected_transfers.begin()].m_subaddr_index.major;
-    for (auto i = ++selected_transfers.begin(); i != selected_transfers.end(); ++i)
-      THROW_WALLET_EXCEPTION_IF(subaddr_account != *i, error::wallet_internal_error, "the tx uses funds from multiple accounts");
-
-    typedef COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::out_entry out_entry;
-    typedef cryptonote::tx_source_entry::output_entry tx_output_entry;
-
-    COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::response daemon_resp = AUTO_VAL_INIT(daemon_resp);
-    if(fake_outputs_count)
-    {
-      COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::request req = AUTO_VAL_INIT(req);
-      req.outs_count = fake_outputs_count + 1;// add one to make possible (if need) to skip real output key
-      for(size_t idx: selected_transfers)
-      {
-        const transfer_container::const_iterator it = m_transfers.begin() + idx;
-        THROW_WALLET_EXCEPTION_IF(it->m_tx.vout.size() <= it->m_internal_output_index, error::wallet_internal_error,
-          "m_internal_output_index = " + std::to_string(it->m_internal_output_index) +
-          " is greater or equal to outputs count = " + std::to_string(it->m_tx.vout.size()));
-        req.amounts.push_back(it->amount());
-      }
-
-      m_daemon_rpc_mutex.lock();
-      bool r = epee::net_utils::invoke_http_bin("/getrandom_outs.bin", req, daemon_resp, m_http_client, rpc_timeout);
-      m_daemon_rpc_mutex.unlock();
-      THROW_WALLET_EXCEPTION_IF(!r, error::no_connection_to_daemon, "getrandom_outs.bin");
-      THROW_WALLET_EXCEPTION_IF(daemon_resp.status == CORE_RPC_STATUS_BUSY, error::daemon_busy, "getrandom_outs.bin");
-      THROW_WALLET_EXCEPTION_IF(daemon_resp.status != CORE_RPC_STATUS_OK, error::get_random_outs_error, daemon_resp.status);
-      THROW_WALLET_EXCEPTION_IF(daemon_resp.outs.size() != selected_transfers.size(), error::wallet_internal_error,
-        "daemon returned wrong response for getrandom_outs.bin, wrong amounts count = " +
-        std::to_string(daemon_resp.outs.size()) + ", expected " +  std::to_string(selected_transfers.size()));
-
-      std::unordered_map<uint64_t, uint64_t> scanty_outs;
-      for(COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::outs_for_amount& amount_outs: daemon_resp.outs)
-      {
-        if (amount_outs.outs.size() < fake_outputs_count)
-        {
-          scanty_outs[amount_outs.amount] = amount_outs.outs.size();
-        }
-      }
-      THROW_WALLET_EXCEPTION_IF(!scanty_outs.empty(), error::not_enough_outs_to_mix, scanty_outs, fake_outputs_count);
-    }
-
-    //prepare inputs
-    size_t i = 0;
-    std::vector<cryptonote::tx_source_entry> sources;
-    for(size_t idx: selected_transfers)
-    {
-      sources.resize(sources.size()+1);
-      cryptonote::tx_source_entry& src = sources.back();
-      const transfer_details& td = m_transfers[idx];
-      src.amount = td.amount();
-      src.rct = false;
-      //paste mixin transaction
-      if(daemon_resp.outs.size())
-      {
-        daemon_resp.outs[i].outs.sort([](const out_entry& a, const out_entry& b){return a.global_amount_index < b.global_amount_index;});
-        for(out_entry& daemon_oe: daemon_resp.outs[i].outs)
-        {
-          if(td.m_global_output_index == daemon_oe.global_amount_index)
-            continue;
-          tx_output_entry oe;
-          oe.first = daemon_oe.global_amount_index;
-          oe.second.dest = rct::pk2rct(daemon_oe.out_key);
-          oe.second.mask = rct::identity();
-          src.outputs.push_back(oe);
-          if(src.outputs.size() >= fake_outputs_count)
-            break;
-        }
-      }
-
-      //paste real transaction to the random index
-      auto it_to_insert = std::find_if(src.outputs.begin(), src.outputs.end(), [&](const tx_output_entry& a)
-      {
-        return a.first >= td.m_global_output_index;
-      });
-      //size_t real_index = src.outputs.size() ? (rand() % src.outputs.size() ):0;
-      tx_output_entry real_oe;
-      real_oe.first = td.m_global_output_index;
-      real_oe.second.dest = rct::pk2rct(boost::get<txout_to_key>(td.m_tx.vout[td.m_internal_output_index].target).key);
-      real_oe.second.mask = rct::identity();
-      auto interted_it = src.outputs.insert(it_to_insert, real_oe);
-      src.real_out_tx_key = get_tx_pub_key_from_extra(td.m_tx);
-      src.real_output = interted_it - src.outputs.begin();
-      src.real_output_in_tx_index = td.m_internal_output_index;
-      src.multisig_kLRki = rct::multisig_kLRki({rct::zero(), rct::zero(), rct::zero(), rct::zero()});
-      detail::print_source_entry(src);
-      ++i;
-    }
-
-    cryptonote::tx_destination_entry change_dts = AUTO_VAL_INIT(change_dts);
-    if (needed_money < found_money)
-    {
-      change_dts.addr = get_subaddress({subaddr_account, 0});
-      change_dts.amount = found_money - needed_money;
-    }
-
-    std::vector<cryptonote::tx_destination_entry> splitted_dsts, dust_dsts;
-    uint64_t dust = 0;
-    destination_split_strategy(dsts, change_dts, dust_policy.dust_threshold, splitted_dsts, dust_dsts);
-    for(auto& d: dust_dsts) {
-      THROW_WALLET_EXCEPTION_IF(dust_policy.dust_threshold < d.amount, error::wallet_internal_error, "invalid dust value: dust = " +
-        std::to_string(d.amount) + ", dust_threshold = " + std::to_string(dust_policy.dust_threshold));
-    }
-    for(auto& d: dust_dsts) {
-      if (!dust_policy.add_to_fee)
-        splitted_dsts.push_back(cryptonote::tx_destination_entry(d.amount, dust_policy.addr_for_dust, d.is_subaddress));
-      dust += d.amount;
-    }
-
-    crypto::secret_key tx_key;
-    std::vector<crypto::secret_key> additional_tx_keys;
-    rct::multisig_out msout;
-    bool r = cryptonote::construct_tx_and_get_tx_key(m_account.get_keys(), m_subaddresses, sources, splitted_dsts, change_dts.addr, extra, tx, unlock_time, tx_key, additional_tx_keys, false, rct::RangeProofBorromean, m_multisig ? &msout : NULL);
-    THROW_WALLET_EXCEPTION_IF(!r, error::tx_not_constructed, sources, splitted_dsts, unlock_time, m_nettype);
-    THROW_WALLET_EXCEPTION_IF(upper_transaction_weight_limit <= get_transaction_weight(tx), error::tx_too_big, tx, upper_transaction_weight_limit);
-
-    std::string key_images;
-    bool all_are_txin_to_key = std::all_of(tx.vin.begin(), tx.vin.end(), [&](const txin_v& s_e) -> bool
-    {
-      CHECKED_GET_SPECIFIC_VARIANT(s_e, const txin_to_key, in, false);
-      key_images += boost::to_string(in.k_image) + " ";
-      return true;
-    });
-    THROW_WALLET_EXCEPTION_IF(!all_are_txin_to_key, error::unexpected_txin_type, tx);
-    
-    bool dust_sent_elsewhere = (dust_policy.addr_for_dust.m_view_public_key != change_dts.addr.m_view_public_key
-                                || dust_policy.addr_for_dust.m_spend_public_key != change_dts.addr.m_spend_public_key);      
-
-    if (dust_policy.add_to_fee || dust_sent_elsewhere) change_dts.amount -= dust;
-
-    ptx.key_images = key_images;
-    ptx.fee = (dust_policy.add_to_fee ? fee+dust : fee);
-    ptx.dust = ((dust_policy.add_to_fee || dust_sent_elsewhere) ? dust : 0);
-    ptx.dust_added_to_fee = dust_policy.add_to_fee;
-    ptx.tx = tx;
-    ptx.change_dts = change_dts;
-    ptx.selected_transfers = selected_transfers;
-    ptx.tx_key = tx_key;
-    ptx.additional_tx_keys = additional_tx_keys;
-    ptx.dests = dsts;
-    ptx.construction_data.sources = sources;
-    ptx.construction_data.change_dts = change_dts;
-    ptx.construction_data.splitted_dsts = splitted_dsts;
-    ptx.construction_data.selected_transfers = selected_transfers;
-    ptx.construction_data.extra = tx.extra;
-    ptx.construction_data.unlock_time = unlock_time;
-    ptx.construction_data.use_rct = false;
-    ptx.construction_data.use_bulletproofs = false;
-    ptx.construction_data.dests = dsts;
-    // record which subaddress indices are being used as inputs
-    ptx.construction_data.subaddr_account = subaddr_account;
-    ptx.construction_data.subaddr_indices.clear();
-    for (size_t idx: selected_transfers)
-      ptx.construction_data.subaddr_indices.insert(m_transfers[idx].m_subaddr_index.minor);
-  }
-
-
 }

src/wallet/wallet_errors.h

@@ -73,7 +73,7 @@ namespace tools
     //         get_tx_pool_error
     //         out_of_hashchain_bounds_error
     //       transfer_error *
-    //         get_random_outs_general_error
+    //         get_outs_general_error
     //         not_enough_unlocked_money
     //         not_enough_money
     //         tx_not_possible
@@ -128,7 +128,7 @@ namespace tools
       get_blocks_error_message_index,
       get_hashes_error_message_index,
       get_out_indices_error_message_index,
-      get_random_outs_error_message_index
+      get_outs_error_message_index
     };
 
     template<typename Base, int msg_index>
@@ -427,7 +427,7 @@ namespace tools
       }
     };
     //----------------------------------------------------------------------------------------------------
-    typedef failed_rpc_request<transfer_error, get_random_outs_error_message_index> get_random_outs_error;
+    typedef failed_rpc_request<transfer_error, get_outs_error_message_index> get_outs_error;
     //----------------------------------------------------------------------------------------------------
     struct not_enough_unlocked_money : public transfer_error
     {

tests/functional_tests/transactions_flow_test.cpp

@@ -84,10 +84,10 @@ bool do_send_money(tools::wallet2& w1, tools::wallet2& w2, size_t mix_in_factor,
 
   try
   {
-    tools::wallet2::pending_tx ptx;
+    std::vector<tools::wallet2::pending_tx> ptx;
-    std::vector<size_t> indices = w1.select_available_outputs([](const tools::wallet2::transfer_details&) { return true; });
+    ptx = w1.create_transactions_2(dsts, mix_in_factor, 0, 0, std::vector<uint8_t>(), 0, {});
-    w1.transfer(dsts, mix_in_factor, indices, 0, TEST_FEE, std::vector<uint8_t>(), tools::detail::null_split_strategy, tools::tx_dust_policy(TEST_DUST_THRESHOLD), tx, ptx);
+    for (auto &p: ptx)
-    w1.commit_tx(ptx);
+      w1.commit_tx(p);
     return true;
   }
   catch (const std::exception&)
@@ -167,8 +167,8 @@ bool transactions_flow_test(std::string& working_folder,
   daemon_req.miner_address = w1.get_account().get_public_address_str(MAINNET);
   daemon_req.threads_count = 9;
   r = net_utils::invoke_http_json("/start_mining", daemon_req, daemon_rsp, http_client, std::chrono::seconds(10));
-  CHECK_AND_ASSERT_MES(r, false, "failed to get getrandom_outs");
+  CHECK_AND_ASSERT_MES(r, false, "failed to start mining getrandom_outs");
-  CHECK_AND_ASSERT_MES(daemon_rsp.status == CORE_RPC_STATUS_OK, false, "failed to getrandom_outs.bin");
+  CHECK_AND_ASSERT_MES(daemon_rsp.status == CORE_RPC_STATUS_OK, false, "failed to start mining");
 
   //wait for money, until balance will have enough money
   w1.refresh(true, blocks_fetched, received_money, ok);