Allow get_bulk_payments to return all payments regardless of payment ID

by giving an empty list of payment IDs.

src/wallet/wallet2.cpp

@@ -227,13 +227,16 @@ void wallet2::process_new_transaction(const cryptonote::transaction& tx, uint64_
   }
 
   tx_extra_nonce extra_nonce;
+  crypto::hash payment_id = null_hash;
   if (find_tx_extra_field_by_type(tx_extra_fields, extra_nonce))
   {
-    crypto::hash payment_id;
     if(get_payment_id_from_tx_extra_nonce(extra_nonce.nonce, payment_id))
     {
+      // We got a payment ID to go with this tx
+    }
+  }
   uint64_t received = (tx_money_spent_in_ins < tx_money_got_in_outs) ? tx_money_got_in_outs - tx_money_spent_in_ins : 0;
-      if (0 < received && null_hash != payment_id)
+  if (0 < received)
   {
     payment_details payment;
     payment.m_tx_hash      = cryptonote::get_transaction_hash(tx);
@@ -244,8 +247,6 @@ void wallet2::process_new_transaction(const cryptonote::transaction& tx, uint64_
     LOG_PRINT_L2("Payment found: " << payment_id << " / " << payment.m_tx_hash << " / " << payment.m_amount);
   }
 }
-  }
-}
 //----------------------------------------------------------------------------------------------------
 void wallet2::process_unconfirmed(const cryptonote::transaction& tx)
 {
@@ -816,6 +817,17 @@ void wallet2::get_payments(const crypto::hash& payment_id, std::list<wallet2::pa
   });
 }
 //----------------------------------------------------------------------------------------------------
+void wallet2::get_payments(std::list<std::pair<crypto::hash,wallet2::payment_details>>& payments, uint64_t min_height) const
+{
+  auto range = std::make_pair(m_payments.begin(), m_payments.end());
+  std::for_each(range.first, range.second, [&payments, &min_height](const payment_container::value_type& x) {
+    if (min_height < x.second.m_block_height)
+    {
+      payments.push_back(x);
+    }
+  });
+}
+//----------------------------------------------------------------------------------------------------
 bool wallet2::is_transfer_unlocked(const transfer_details& td) const
 {
   if(!is_tx_spendtime_unlocked(td.m_tx.unlock_time))

src/wallet/wallet2.h

@@ -211,6 +211,7 @@ namespace tools
     bool check_connection();
     void get_transfers(wallet2::transfer_container& incoming_transfers) const;
     void get_payments(const crypto::hash& payment_id, std::list<wallet2::payment_details>& payments, uint64_t min_height = 0) const;
+    void get_payments(std::list<std::pair<crypto::hash,wallet2::payment_details>>& payments, uint64_t min_height) const;
     uint64_t get_blockchain_current_height() const { return m_local_bc_height; }
     template <class t_archive>
     inline void serialize(t_archive &a, const unsigned int ver)

src/wallet/wallet_rpc_server.cpp

@@ -315,6 +315,26 @@ namespace tools
   {
     res.payments.clear();
 
+    /* If the payment ID list is empty, we get payments to any payment ID (or lack thereof) */
+    if (req.payment_ids.empty())
+    {
+      std::list<std::pair<crypto::hash,wallet2::payment_details>> payment_list;
+      m_wallet.get_payments(payment_list, req.min_block_height);
+
+      for (auto & payment : payment_list)
+      {
+        wallet_rpc::payment_details rpc_payment;
+        rpc_payment.payment_id   = epee::string_tools::pod_to_hex(payment.first);
+        rpc_payment.tx_hash      = epee::string_tools::pod_to_hex(payment.second.m_tx_hash);
+        rpc_payment.amount       = payment.second.m_amount;
+        rpc_payment.block_height = payment.second.m_block_height;
+        rpc_payment.unlock_time  = payment.second.m_unlock_time;
+        res.payments.push_back(std::move(rpc_payment));
+      }
+
+      return true;
+    }
+
     for (auto & payment_id_str : req.payment_ids)
     {
       crypto::hash payment_id;