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ringdb: factor ring addition code

This commit is contained in:
moneromooo-monero 2018-03-10 14:18:33 +00:00
parent a7da8208f5
commit d32ef7b0f2
No known key found for this signature in database
GPG Key ID: 686F07454D6CEFC3
1 changed files with 16 additions and 22 deletions
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38
src/wallet/ringdb.cpp
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@ -126,6 +126,20 @@ static std::string decrypt(const std::string &ciphertext, const crypto::key_imag
return plaintext; return plaintext;
} }
static void store_relative_ring(MDB_txn *txn, MDB_dbi &dbi, const crypto::key_image &key_image, const std::vector<uint64_t> &relative_ring, const crypto::chacha_key &chacha_key)
{
MDB_val key, data;
std::string key_ciphertext = encrypt(key_image, chacha_key);
key.mv_data = (void*)key_ciphertext.data();
key.mv_size = key_ciphertext.size();
std::string compressed_ring = compress_ring(relative_ring);
std::string data_ciphertext = encrypt(compressed_ring, key_image, chacha_key);
data.mv_size = data_ciphertext.size();
data.mv_data = (void*)data_ciphertext.c_str();
int dbr = mdb_put(txn, dbi, &key, &data, 0);
THROW_WALLET_EXCEPTION_IF(dbr, tools::error::wallet_internal_error, "Failed to set ring for key image in LMDB table: " + std::string(mdb_strerror(dbr)));
}
static int resize_env(MDB_env *env, const char *db_path, size_t needed) static int resize_env(MDB_env *env, const char *db_path, size_t needed)
{ {
MDB_envinfo mei; MDB_envinfo mei;
@ -240,18 +254,7 @@ bool ringdb::add_rings(const crypto::chacha_key &chacha_key, const cryptonote::t
if (ring_size == 1) if (ring_size == 1)
continue; continue;
MDB_val key, data; store_relative_ring(txn, dbi_rings, txin.k_image, txin.key_offsets, chacha_key);
std::string key_ciphertext = encrypt(txin.k_image, chacha_key);
key.mv_data = (void*)key_ciphertext.data();
key.mv_size = key_ciphertext.size();
MDEBUG("Saving relative ring for key image " << txin.k_image << ": " <<
boost::join(txin.key_offsets | boost::adaptors::transformed([](uint64_t out){return std::to_string(out);}), " "));
std::string compressed_ring = compress_ring(txin.key_offsets);
std::string data_ciphertext = encrypt(compressed_ring, txin.k_image, chacha_key);
data.mv_size = data_ciphertext.size();
data.mv_data = (void*)data_ciphertext.c_str();
dbr = mdb_put(txn, dbi_rings, &key, &data, 0);
THROW_WALLET_EXCEPTION_IF(dbr, tools::error::wallet_internal_error, "Failed to add ring to database: " + std::string(mdb_strerror(dbr)));
} }
dbr = mdb_txn_commit(txn); dbr = mdb_txn_commit(txn);
@ -353,16 +356,7 @@ bool ringdb::set_ring(const crypto::chacha_key &chacha_key, const crypto::key_im
epee::misc_utils::auto_scope_leave_caller txn_dtor = epee::misc_utils::create_scope_leave_handler([&](){if (tx_active) mdb_txn_abort(txn);}); epee::misc_utils::auto_scope_leave_caller txn_dtor = epee::misc_utils::create_scope_leave_handler([&](){if (tx_active) mdb_txn_abort(txn);});
tx_active = true; tx_active = true;
MDB_val key, data; store_relative_ring(txn, dbi_rings, key_image, relative ? outs : cryptonote::absolute_output_offsets_to_relative(outs), chacha_key);
std::string key_ciphertext = encrypt(key_image, chacha_key);
key.mv_data = (void*)key_ciphertext.data();
key.mv_size = key_ciphertext.size();
std::string compressed_ring = compress_ring(relative ? outs : cryptonote::absolute_output_offsets_to_relative(outs));
std::string data_ciphertext = encrypt(compressed_ring, key_image, chacha_key);
data.mv_size = data_ciphertext.size();
data.mv_data = (void*)data_ciphertext.c_str();
dbr = mdb_put(txn, dbi_rings, &key, &data, 0);
THROW_WALLET_EXCEPTION_IF(dbr, tools::error::wallet_internal_error, "Failed to set ring for key image in LMDB table: " + std::string(mdb_strerror(dbr)));
dbr = mdb_txn_commit(txn); dbr = mdb_txn_commit(txn);
THROW_WALLET_EXCEPTION_IF(dbr, tools::error::wallet_internal_error, "Failed to commit txn setting ring to database: " + std::string(mdb_strerror(dbr))); THROW_WALLET_EXCEPTION_IF(dbr, tools::error::wallet_internal_error, "Failed to commit txn setting ring to database: " + std::string(mdb_strerror(dbr)));