From d29ea0455a34c2d08c681dacdf809e7f7317d2b3 Mon Sep 17 00:00:00 2001
From: moneromooo-monero <moneromooo-monero@users.noreply.github.com>
Date: Sun, 25 Feb 2018 19:20:07 +0000
Subject: wallet: add an output blackball list to avoid using those in rings

---
 src/wallet/wallet2.cpp | 31 +++++++++++++++++++++++++++++--
 1 file changed, 29 insertions(+), 2 deletions(-)

(limited to 'src/wallet/wallet2.cpp')

diff --git a/src/wallet/wallet2.cpp b/src/wallet/wallet2.cpp
index 6c71a81db..9cdb842ca 100644
--- a/src/wallet/wallet2.cpp
+++ b/src/wallet/wallet2.cpp
@@ -5541,16 +5541,43 @@ bool wallet2::find_and_save_rings(const std::string &filename, bool force)
   return true;
 }
 
-bool wallet2::tx_add_fake_output(std::vector<std::vector<tools::wallet2::get_outs_entry>> &outs, uint64_t global_index, const crypto::public_key& tx_public_key, const rct::key& mask, uint64_t real_index, bool unlocked) const
+bool wallet2::blackball_output(const crypto::public_key &output)
+{
+  return ringdb::blackball(get_ring_database(), output);
+}
+
+bool wallet2::set_blackballed_outputs(const std::vector<crypto::public_key> &outputs, bool add)
+{
+  bool ret = true;
+  if (!add)
+    ret &= ringdb::clear_blackballs(get_ring_database());
+  for (const auto &output: outputs)
+    ret &= ringdb::blackball(get_ring_database(), output);
+  return ret;
+}
+
+bool wallet2::unblackball_output(const crypto::public_key &output)
+{
+  return ringdb::unblackball(get_ring_database(), output);
+}
+
+bool wallet2::is_output_blackballed(const crypto::public_key &output) const
+{
+  return ringdb::blackballed(get_ring_database(), output);
+}
+
+bool wallet2::tx_add_fake_output(std::vector<std::vector<tools::wallet2::get_outs_entry>> &outs, uint64_t global_index, const crypto::public_key& output_public_key, const rct::key& mask, uint64_t real_index, bool unlocked) const
 {
   if (!unlocked) // don't add locked outs
     return false;
   if (global_index == real_index) // don't re-add real one
     return false;
-  auto item = std::make_tuple(global_index, tx_public_key, mask);
+  auto item = std::make_tuple(global_index, output_public_key, mask);
   CHECK_AND_ASSERT_MES(!outs.empty(), false, "internal error: outs is empty");
   if (std::find(outs.back().begin(), outs.back().end(), item) != outs.back().end()) // don't add duplicates
     return false;
+  if (is_output_blackballed(output_public_key)) // don't add blackballed outputs
+    return false;
   outs.back().push_back(item);
   return true;
 }
-- 
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