wallet, simplewallet: Drop support for mine-to-use RPC system

Using post-PR wallet with pre-PR node will generate error message specific to this PR and not generic "command failed" mesages.

2 files changed, 8 insertions, 397 deletions

diff --git a/src/simplewallet/simplewallet.cpp b/src/simplewallet/simplewallet.cpp
index 7eed6d6e9..e62f95b0f 100644
--- a/src/simplewallet/simplewallet.cpp
+++ b/src/simplewallet/simplewallet.cpp
@@ -64,7 +64,6 @@
 #include "cryptonote_basic/cryptonote_format_utils.h"
 #include "storages/http_abstract_invoke.h"
 #include "rpc/core_rpc_server_commands_defs.h"
-#include "rpc/rpc_payment_signature.h"
 #include "crypto/crypto.h"  // for crypto::secret_key definition
 #include "mnemonics/electrum-words.h"
 #include "rapidjson/document.h"
@@ -105,15 +104,12 @@ typedef cryptonote::simple_wallet sw;
   bool auto_refresh_enabled = m_auto_refresh_enabled.load(std::memory_order_relaxed); \
   m_auto_refresh_enabled.store(false, std::memory_order_relaxed); \
   /* stop any background refresh and other processes, and take over */ \
-  m_suspend_rpc_payment_mining.store(true, std::memory_order_relaxed); \
   m_wallet->stop(); \
   boost::unique_lock<boost::mutex> lock(m_idle_mutex); \
   m_idle_cond.notify_all(); \
   epee::misc_utils::auto_scope_leave_caller scope_exit_handler = epee::misc_utils::create_scope_leave_handler([&](){ \
     /* m_idle_mutex is still locked here */ \
     m_auto_refresh_enabled.store(auto_refresh_enabled, std::memory_order_relaxed); \
-    m_suspend_rpc_payment_mining.store(false, std::memory_order_relaxed); \
-    m_rpc_payment_checker.trigger(); \
     m_idle_cond.notify_one(); \
   })
 
@@ -137,9 +133,6 @@ typedef cryptonote::simple_wallet sw;
 
 #define REFRESH_PERIOD 90 // seconds
 
-#define CREDITS_TARGET 50000
-#define MAX_PAYMENT_DIFF 10000
-#define MIN_PAYMENT_RATE 0.01f // per hash
 #define MAX_MNEW_ADDRESSES 1000
 
 #define CHECK_MULTISIG_ENABLED() \
@@ -167,7 +160,6 @@ namespace
 {
   const std::array<const char* const, 5> allowed_priority_strings = {{"default", "unimportant", "normal", "elevated", "priority"}};
   const auto arg_wallet_file = wallet_args::arg_wallet_file();
-  const auto arg_rpc_client_secret_key = wallet_args::arg_rpc_client_secret_key();
   const command_line::arg_descriptor<std::string> arg_generate_new_wallet = {"generate-new-wallet", sw::tr("Generate new wallet and save it to <arg>"), ""};
   const command_line::arg_descriptor<std::string> arg_generate_from_device = {"generate-from-device", sw::tr("Generate new wallet from device and save it to <arg>"), ""};
   const command_line::arg_descriptor<std::string> arg_generate_from_view_key = {"generate-from-view-key", sw::tr("Generate incoming-only wallet from view key"), ""};
@@ -283,9 +275,6 @@ namespace
   const char* USAGE_NET_STATS("net_stats");
   const char* USAGE_PUBLIC_NODES("public_nodes");
   const char* USAGE_WELCOME("welcome");
-  const char* USAGE_RPC_PAYMENT_INFO("rpc_payment_info");
-  const char* USAGE_START_MINING_FOR_RPC("start_mining_for_rpc [<number_of_threads>]");
-  const char* USAGE_STOP_MINING_FOR_RPC("stop_mining_for_rpc");
   const char* USAGE_SHOW_QR_CODE("show_qr_code [<subaddress_index>]");
   const char* USAGE_VERSION("version");
   const char* USAGE_HELP("help [<command> | all]");
@@ -540,10 +529,9 @@ void simple_wallet::handle_transfer_exception(const std::exception_ptr &e, bool
     {
       std::rethrow_exception(e);
     }
-    catch (const tools::error::payment_required&)
+    catch (const tools::error::deprecated_rpc_access&)
     {
-      fail_msg_writer() << tr("Payment required, see the 'rpc_payment_info' command");
-      m_need_payment = true;
+      fail_msg_writer() << tr("Daemon requires deprecated RPC payment. See https://github.com/monero-project/monero/issues/8722");
     }
     catch (const tools::error::no_connection_to_daemon&)
     {
@@ -1924,77 +1912,6 @@ bool simple_wallet::unset_ring(const std::vector<std::string> &args)
   return true;
 }
 
-bool simple_wallet::rpc_payment_info(const std::vector<std::string> &args)
-{
-  if (!try_connect_to_daemon())
-    return true;
-
-  LOCK_IDLE_SCOPE();
-
-  try
-  {
-    bool payment_required;
-    uint64_t credits, diff, credits_per_hash_found, height, seed_height;
-    uint32_t cookie;
-    std::string hashing_blob;
-    crypto::hash seed_hash, next_seed_hash;
-    crypto::public_key pkey;
-    crypto::secret_key_to_public_key(m_wallet->get_rpc_client_secret_key(), pkey);
-    message_writer() << tr("RPC client ID: ") << pkey;
-    message_writer() << tr("RPC client secret key: ") << m_wallet->get_rpc_client_secret_key();
-    if (!m_wallet->get_rpc_payment_info(false, payment_required, credits, diff, credits_per_hash_found, hashing_blob, height, seed_height, seed_hash, next_seed_hash, cookie))
-    {
-      fail_msg_writer() << tr("Failed to query daemon");
-      return true;
-    }
-    if (payment_required)
-    {
-      uint64_t target = m_wallet->credits_target();
-      if (target == 0)
-        target = CREDITS_TARGET;
-      message_writer() << tr("Using daemon: ") << m_wallet->get_daemon_address();
-      message_writer() << tr("Payments required for node use, current credits: ") << credits;
-      message_writer() << tr("Credits target: ") << target;
-      uint64_t expected, discrepancy;
-      m_wallet->credit_report(expected, discrepancy);
-      message_writer() << tr("Credits spent this session: ") << expected;
-      if (expected)
-        message_writer() << tr("Credit discrepancy this session: ") << discrepancy << " (" << 100.0f * discrepancy / expected << "%)";
-      float cph = credits_per_hash_found / (float)diff;
-      message_writer() << tr("Difficulty: ") << diff << ", " << credits_per_hash_found << " " << tr("credits per hash found, ") << cph << " " << tr("credits/hash");
-      const boost::posix_time::ptime now = boost::posix_time::microsec_clock::universal_time();
-      bool mining = (now - m_last_rpc_payment_mining_time).total_microseconds() < 1000000;
-      if (mining)
-      {
-        float hash_rate = m_rpc_payment_hash_rate;
-        if (hash_rate > 0)
-        {
-          message_writer() << (boost::format(tr("Mining for payment at %.1f H/s")) % hash_rate).str();
-          if (credits < target)
-          {
-            std::chrono::seconds seconds((unsigned)((target - credits) / cph / hash_rate));
-            std::string target_string = get_human_readable_timespan(seconds);
-            message_writer() << (boost::format(tr("Estimated time till %u credits target mined: %s")) % target % target_string).str();
-          }
-        }
-        else
-          message_writer() << tr("Mining for payment");
-      }
-      else
-        message_writer() << tr("Not mining");
-    }
-    else
-      message_writer() << tr("No payment needed for node use");
-  }
-  catch (const std::exception& e)
-  {
-    LOG_ERROR("unexpected error: " << e.what());
-    fail_msg_writer() << tr("unexpected error: ") << e.what();
-  }
-
-  return true;
-}
-
 bool simple_wallet::blackball(const std::vector<std::string> &args)
 {
   uint64_t amount = std::numeric_limits<uint64_t>::max(), offset, num_offsets;
@@ -2242,31 +2159,19 @@ bool simple_wallet::public_nodes(const std::vector<std::string> &args)
   try
   {
     auto nodes = m_wallet->get_public_nodes(false);
-    m_claimed_cph.clear();
     if (nodes.empty())
     {
       fail_msg_writer() << tr("No known public nodes");
       return true;
     }
-    std::sort(nodes.begin(), nodes.end(), [](const public_node &node0, const public_node &node1) {
-      if (node0.rpc_credits_per_hash && node1.rpc_credits_per_hash == 0)
-        return true;
-      if (node0.rpc_credits_per_hash && node1.rpc_credits_per_hash)
-        return node0.rpc_credits_per_hash < node1.rpc_credits_per_hash;
-      return false;
-    });
 
     const uint64_t now = time(NULL);
-    message_writer() << boost::format("%32s %12s %16s") % tr("address") % tr("credits/hash") % tr("last_seen");
+    message_writer() << boost::format("%32s %16s") % tr("address") % tr("last_seen");
     for (const auto &node: nodes)
     {
-      const float cph = node.rpc_credits_per_hash / RPC_CREDITS_PER_HASH_SCALE;
-      char cphs[9];
-      snprintf(cphs, sizeof(cphs), "%.3f", cph);
       const std::string last_seen = node.last_seen == 0 ? tr("never") : get_human_readable_timespan(std::chrono::seconds(now - node.last_seen));
       std::string host = node.host + ":" + std::to_string(node.rpc_port);
-      message_writer() << boost::format("%32s %12s %16s") % host % cphs % last_seen;
-      m_claimed_cph[host] = node.rpc_credits_per_hash;
+      message_writer() << boost::format("%32s %16s") % host % last_seen;
     }
   }
   catch (const std::exception &e)
@@ -2341,68 +2246,6 @@ bool simple_wallet::cold_sign_tx(const std::vector<tools::wallet2::pending_tx>&
   return m_wallet->import_key_images(exported_txs, 0, true);
 }
 
-bool simple_wallet::start_mining_for_rpc(const std::vector<std::string> &args)
-{
-  if (!try_connect_to_daemon())
-    return true;
-
-  bool ok = true;
-  if(args.size() >= 1)
-  {
-    uint16_t num = 0;
-    ok = string_tools::get_xtype_from_string(num, args[0]);
-    m_rpc_payment_threads = num;
-  }
-  else
-  {
-    m_rpc_payment_threads = 0;
-  }
-
-  if (!ok)
-  {
-    PRINT_USAGE(USAGE_START_MINING_FOR_RPC);
-    return true;
-  }
-
-  LOCK_IDLE_SCOPE();
-
-  bool payment_required;
-  uint64_t credits, diff, credits_per_hash_found, height, seed_height;
-  uint32_t cookie;
-  std::string hashing_blob;
-  crypto::hash seed_hash, next_seed_hash;
-  if (!m_wallet->get_rpc_payment_info(true, payment_required, credits, diff, credits_per_hash_found, hashing_blob, height, seed_height, seed_hash, next_seed_hash, cookie))
-  {
-    fail_msg_writer() << tr("Failed to query daemon");
-    return true;
-  }
-  if (!payment_required)
-  {
-    fail_msg_writer() << tr("Daemon does not require payment for RPC access");
-    return true;
-  }
-
-  m_rpc_payment_mining_requested = true;
-  m_rpc_payment_checker.trigger();
-  const float cph = credits_per_hash_found / (float)diff;
-  bool low = (diff > MAX_PAYMENT_DIFF || cph < MIN_PAYMENT_RATE);
-  success_msg_writer() << (boost::format(tr("Starting mining for RPC access: diff %llu, %f credits/hash%s")) % diff % cph % (low ? " - this is low" : "")).str();
-  success_msg_writer() << tr("Run stop_mining_for_rpc to stop");
-  return true;
-}
-
-bool simple_wallet::stop_mining_for_rpc(const std::vector<std::string> &args)
-{
-  if (!try_connect_to_daemon())
-    return true;
-
-  LOCK_IDLE_SCOPE();
-  m_rpc_payment_mining_requested = false;
-  m_last_rpc_payment_mining_time = boost::posix_time::ptime(boost::gregorian::date(1970, 1, 1));
-  m_rpc_payment_hash_rate = -1.0f;
-  return true;
-}
-
 bool simple_wallet::show_qr_code(const std::vector<std::string> &args)
 {
   uint32_t subaddress_index = 0;
@@ -2812,53 +2655,6 @@ bool simple_wallet::set_segregate_pre_fork_outputs(const std::vector<std::string
   return true;
 }
 
-bool simple_wallet::set_persistent_rpc_client_id(const std::vector<std::string> &args/* = std::vector<std::string>()*/)
-{
-  const auto pwd_container = get_and_verify_password();
-  if (pwd_container)
-  {
-    parse_bool_and_use(args[1], [&](bool r) {
-      m_wallet->persistent_rpc_client_id(r);
-      m_wallet->rewrite(m_wallet_file, pwd_container->password());
-    });
-  }
-  return true;
-}
-
-bool simple_wallet::set_auto_mine_for_rpc_payment_threshold(const std::vector<std::string> &args/* = std::vector<std::string>()*/)
-{
-  const auto pwd_container = get_and_verify_password();
-  if (pwd_container)
-  {
-    float threshold;
-    if (!epee::string_tools::get_xtype_from_string(threshold, args[1]) || threshold < 0.0f)
-    {
-      fail_msg_writer() << tr("Invalid threshold");
-      return true;
-    }
-    m_wallet->auto_mine_for_rpc_payment_threshold(threshold);
-    m_wallet->rewrite(m_wallet_file, pwd_container->password());
-  }
-  return true;
-}
-
-bool simple_wallet::set_credits_target(const std::vector<std::string> &args/* = std::vector<std::string>()*/)
-{
-  const auto pwd_container = get_and_verify_password();
-  if (pwd_container)
-  {
-    uint64_t target;
-    if (!epee::string_tools::get_xtype_from_string(target, args[1]))
-    {
-      fail_msg_writer() << tr("Invalid target");
-      return true;
-    }
-    m_wallet->credits_target(target);
-    m_wallet->rewrite(m_wallet_file, pwd_container->password());
-  }
-  return true;
-}
-
 bool simple_wallet::set_key_reuse_mitigation2(const std::vector<std::string> &args/* = std::vector<std::string>()*/)
 {
   const auto pwd_container = get_and_verify_password();
@@ -3246,12 +3042,6 @@ simple_wallet::simple_wallet()
   , m_last_activity_time(time(NULL))
   , m_locked(false)
   , m_in_command(false)
-  , m_need_payment(false)
-  , m_rpc_payment_mining_requested(false)
-  , m_last_rpc_payment_mining_time(boost::gregorian::date(1970, 1, 1))
-  , m_daemon_rpc_payment_message_displayed(false)
-  , m_rpc_payment_hash_rate(-1.0f)
-  , m_suspend_rpc_payment_mining(false)
 {
   m_cmd_binder.set_handler("start_mining",
                            boost::bind(&simple_wallet::on_command, this, &simple_wallet::start_mining, _1),
@@ -3433,12 +3223,6 @@ simple_wallet::simple_wallet()
                                   "  Device name for hardware wallet.\n "
                                   "export-format <\"binary\"|\"ascii\">\n "
                                   "  Save all exported files as binary (cannot be copied and pasted) or ascii (can be).\n "
-                                  "persistent-rpc-client-id <1|0>\n "
-                                  "  Whether to keep using the same client id for RPC payment over wallet restarts.\n"
-                                  "auto-mine-for-rpc-payment-threshold <float>\n "
-                                  "  Whether to automatically start mining for RPC payment if the daemon requires it.\n"
-                                  "credits-target <unsigned int>\n"
-                                  "  The RPC payment credits balance to target (0 for default).\n "
                                   "show-wallet-name-when-locked <1|0>\n "
                                   "  Set this if you would like to display the wallet name when locked.\n "
                                   "enable-multisig-experimental <1|0>\n "
@@ -3759,18 +3543,6 @@ simple_wallet::simple_wallet()
                            boost::bind(&simple_wallet::on_command, this, &simple_wallet::version, _1),
                            tr(USAGE_VERSION),
                            tr("Returns version information"));
-  m_cmd_binder.set_handler("rpc_payment_info",
-                           boost::bind(&simple_wallet::on_command, this, &simple_wallet::rpc_payment_info, _1),
-                           tr(USAGE_RPC_PAYMENT_INFO),
-                           tr("Get info about RPC payments to current node"));
-  m_cmd_binder.set_handler("start_mining_for_rpc",
-                           boost::bind(&simple_wallet::on_command, this, &simple_wallet::start_mining_for_rpc, _1),
-                           tr(USAGE_START_MINING_FOR_RPC),
-                           tr("Start mining to pay for RPC access"));
-  m_cmd_binder.set_handler("stop_mining_for_rpc",
-                           boost::bind(&simple_wallet::on_command, this, &simple_wallet::stop_mining_for_rpc, _1),
-                           tr(USAGE_STOP_MINING_FOR_RPC),
-                           tr("Stop mining to pay for RPC access"));
   m_cmd_binder.set_handler("show_qr_code",
                            boost::bind(&simple_wallet::on_command, this, &simple_wallet::show_qr_code, _1),
                            tr(USAGE_SHOW_QR_CODE),
@@ -3854,9 +3626,6 @@ bool simple_wallet::set_variable(const std::vector<std::string> &args)
         << " (disabled on Windows)"
 #endif
         ;
-    success_msg_writer() << "persistent-rpc-client-id = " << m_wallet->persistent_rpc_client_id();
-    success_msg_writer() << "auto-mine-for-rpc-payment-threshold = " << m_wallet->auto_mine_for_rpc_payment_threshold();
-    success_msg_writer() << "credits-target = " << m_wallet->credits_target();
     success_msg_writer() << "load-deprecated-formats = " << m_wallet->load_deprecated_formats();
     success_msg_writer() << "enable-multisig-experimental = " << m_wallet->is_multisig_enabled();
     return true;
@@ -3922,9 +3691,6 @@ bool simple_wallet::set_variable(const std::vector<std::string> &args)
     CHECK_SIMPLE_VARIABLE("device-name", set_device_name, tr("<device_name[:device_spec]>"));
     CHECK_SIMPLE_VARIABLE("export-format", set_export_format, tr("\"binary\" or \"ascii\""));
     CHECK_SIMPLE_VARIABLE("load-deprecated-formats", set_load_deprecated_formats, tr("0 or 1"));
-    CHECK_SIMPLE_VARIABLE("persistent-rpc-client-id", set_persistent_rpc_client_id, tr("0 or 1"));
-    CHECK_SIMPLE_VARIABLE("auto-mine-for-rpc-payment-threshold", set_auto_mine_for_rpc_payment_threshold, tr("floating point >= 0"));
-    CHECK_SIMPLE_VARIABLE("credits-target", set_credits_target, tr("unsigned integer"));
     CHECK_SIMPLE_VARIABLE("enable-multisig-experimental", set_enable_multisig, tr("0 or 1"));
   }
   fail_msg_writer() << tr("set: unrecognized argument(s)");
@@ -4694,17 +4460,6 @@ bool simple_wallet::init(const boost::program_options::variables_map& vm)
     return false;
   }
 
-  if (!command_line::is_arg_defaulted(vm, arg_rpc_client_secret_key))
-  {
-    crypto::secret_key rpc_client_secret_key;
-    if (!epee::string_tools::hex_to_pod(command_line::get_arg(vm, arg_rpc_client_secret_key), rpc_client_secret_key))
-    {
-      fail_msg_writer() << tr("RPC client secret key should be 32 byte in hex format");
-      return false;
-    }
-    m_wallet->set_rpc_client_secret_key(rpc_client_secret_key);
-  }
-
   if (!m_wallet->is_trusted_daemon())
   {
     message_writer(console_color_red, true) << (boost::format(tr("Warning: using an untrusted daemon at %s")) % m_wallet->get_daemon_address()).str();
@@ -5243,7 +4998,6 @@ bool simple_wallet::close_wallet()
   if (m_idle_run.load(std::memory_order_relaxed))
   {
     m_idle_run.store(false, std::memory_order_relaxed);
-    m_suspend_rpc_payment_mining.store(true, std::memory_order_relaxed);
     m_wallet->stop();
     {
       boost::unique_lock<boost::mutex> lock(m_idle_mutex);
@@ -5519,40 +5273,6 @@ bool simple_wallet::stop_mining(const std::vector<std::string>& args)
   return true;
 }
 //----------------------------------------------------------------------------------------------------
-bool simple_wallet::check_daemon_rpc_prices(const std::string &daemon_url, uint32_t &actual_cph, uint32_t &claimed_cph)
-{
-  try
-  {
-    auto i = m_claimed_cph.find(daemon_url);
-    if (i == m_claimed_cph.end())
-      return false;
-
-    claimed_cph = m_claimed_cph[daemon_url];
-    bool payment_required;
-    uint64_t credits, diff, credits_per_hash_found, height, seed_height;
-    uint32_t cookie;
-    cryptonote::blobdata hashing_blob;
-    crypto::hash seed_hash, next_seed_hash;
-    if (m_wallet->get_rpc_payment_info(false, payment_required, credits, diff, credits_per_hash_found, hashing_blob, height, seed_height, seed_hash, next_seed_hash, cookie) && payment_required)
-    {
-      actual_cph = RPC_CREDITS_PER_HASH_SCALE * (credits_per_hash_found / (float)diff);
-      return true;
-    }
-    else
-    {
-      fail_msg_writer() << tr("Error checking daemon RPC access prices");
-    }
-  }
-  catch (const std::exception &e)
-  {
-    // can't check
-    fail_msg_writer() << tr("Error checking daemon RPC access prices: ") << e.what();
-    return false;
-  }
-  // no record found for this daemon
-  return false;
-}
-//----------------------------------------------------------------------------------------------------
 bool simple_wallet::set_daemon(const std::vector<std::string>& args)
 {
   std::string daemon_url;
@@ -5647,20 +5367,6 @@ bool simple_wallet::set_daemon(const std::vector<std::string>& args)
     }
 
     success_msg_writer() << boost::format("Daemon set to %s, %s") % daemon_url % (m_wallet->is_trusted_daemon() ? tr("trusted") : tr("untrusted"));
-
-    // check whether the daemon's prices match the claim, and disconnect if not, to disincentivize daemons lying
-    uint32_t actual_cph, claimed_cph;
-    if (check_daemon_rpc_prices(daemon_url, actual_cph, claimed_cph))
-    {
-      if (actual_cph < claimed_cph)
-      {
-        fail_msg_writer() << tr("Daemon RPC credits/hash is less than was claimed. Either this daemon is cheating, or it changed its setup recently.");
-        fail_msg_writer() << tr("Claimed: ") << claimed_cph / (float)RPC_CREDITS_PER_HASH_SCALE;
-        fail_msg_writer() << tr("Actual: ") << actual_cph / (float)RPC_CREDITS_PER_HASH_SCALE;
-      }
-    }
-
-    m_daemon_rpc_payment_message_displayed = false;
   } else {
     fail_msg_writer() << tr("This does not seem to be a valid daemon URL.");
   }
@@ -5927,10 +5633,9 @@ bool simple_wallet::refresh_main(uint64_t start_height, enum ResetType reset, bo
   {
     ss << tr("no connection to daemon. Please make sure daemon is running.");
   }
-  catch (const tools::error::payment_required&)
+  catch (const tools::error::deprecated_rpc_access&)
   {
-    ss << tr("payment required.");
-    m_need_payment = true;
+    ss << tr("Daemon requires deprecated RPC payment. See https://github.com/monero-project/monero/issues/8722");
   }
   catch (const tools::error::wallet_rpc_error& e)
   {
@@ -6266,10 +5971,9 @@ bool simple_wallet::rescan_spent(const std::vector<std::string> &args)
   {
     fail_msg_writer() << tr("no connection to daemon. Please make sure daemon is running.");
   }
-  catch (const tools::error::payment_required&)
+  catch (const tools::error::deprecated_rpc_access&)
   {
-    fail_msg_writer() << tr("payment required.");
-    m_need_payment = true;
+    fail_msg_writer() << tr("Daemon requires deprecated RPC payment. See https://github.com/monero-project/monero/issues/8722");
   }
   catch (const tools::error::is_key_image_spent_error&)
   {
@@ -6380,7 +6084,6 @@ bool simple_wallet::process_ring_members(const std::vector<tools::wallet2::pendi
       }
       COMMAND_RPC_GET_OUTPUTS_BIN::response res = AUTO_VAL_INIT(res);
       req.get_txid = true;
-      req.client = cryptonote::make_rpc_payment_signature(m_wallet->get_rpc_client_secret_key());
       bool r = m_wallet->invoke_http_bin("/get_outs.bin", req, res);
       err = interpret_rpc_response(r, res.status);
       if (!err.empty())
@@ -9276,7 +8979,6 @@ void simple_wallet::wallet_idle_thread()
 #endif
       m_refresh_checker.do_call(boost::bind(&simple_wallet::check_refresh, this));
       m_mms_checker.do_call(boost::bind(&simple_wallet::check_mms, this));
-      m_rpc_payment_checker.do_call(boost::bind(&simple_wallet::check_rpc_payment, this));
 
       if (!m_idle_run.load(std::memory_order_relaxed))
         break;
@@ -9336,78 +9038,6 @@ bool simple_wallet::check_mms()
     return true;
 }
 //----------------------------------------------------------------------------------------------------
-bool simple_wallet::check_rpc_payment()
-{
-  if (!m_rpc_payment_mining_requested && m_wallet->auto_mine_for_rpc_payment_threshold() == 0.0f)
-    return true;
-
-  uint64_t target = m_wallet->credits_target();
-  if (target == 0)
-    target = CREDITS_TARGET;
-  if (m_rpc_payment_mining_requested)
-    target = std::numeric_limits<uint64_t>::max();
-  bool need_payment = m_need_payment || m_rpc_payment_mining_requested || (m_wallet->credits() < target && m_wallet->daemon_requires_payment());
-  if (need_payment)
-  {
-    const boost::posix_time::ptime start_time = boost::posix_time::microsec_clock::universal_time();
-    auto startfunc = [this](uint64_t diff, uint64_t credits_per_hash_found)
-    {
-      const float cph = credits_per_hash_found / (float)diff;
-      bool low = (diff > MAX_PAYMENT_DIFF || cph < MIN_PAYMENT_RATE);
-      if (credits_per_hash_found > 0 && cph >= m_wallet->auto_mine_for_rpc_payment_threshold())
-      {
-        MINFO(std::to_string(cph) << " credits per hash is >= our threshold (" << m_wallet->auto_mine_for_rpc_payment_threshold() << "), starting mining");
-        return true;
-      }
-      else if (m_rpc_payment_mining_requested)
-      {
-        MINFO("Mining for RPC payment was requested, starting mining");
-        return true;
-      }
-      else
-      {
-        if (!m_daemon_rpc_payment_message_displayed)
-        {
-          success_msg_writer() << boost::format(tr("Daemon requests payment at diff %llu, with %f credits/hash%s. Run start_mining_for_rpc to start mining to pay for RPC access, or use another daemon")) %
-              diff % cph % (low ? " - this is low" : "");
-          m_cmd_binder.print_prompt();
-          m_daemon_rpc_payment_message_displayed = true;
-        }
-        return false;
-      }
-    };
-    auto contfunc = [&,this](unsigned n_hashes)
-    {
-      if (m_suspend_rpc_payment_mining.load(std::memory_order_relaxed))
-        return false;
-      const boost::posix_time::ptime now = boost::posix_time::microsec_clock::universal_time();
-      m_last_rpc_payment_mining_time = now;
-      if ((now - start_time).total_microseconds() >= 2 * 1000000)
-        m_rpc_payment_hash_rate = n_hashes / (float)((now - start_time).total_seconds());
-      if ((now - start_time).total_microseconds() >= REFRESH_PERIOD * 1000000)
-        return false;
-      return true;
-    };
-    auto foundfunc = [this, target](uint64_t credits)
-    {
-      m_need_payment = false;
-      return credits < target;
-    };
-    auto errorfunc = [this](const std::string &error)
-    {
-      fail_msg_writer() << tr("Error mining to daemon: ") << error;
-      m_cmd_binder.print_prompt();
-    };
-    bool ret = m_wallet->search_for_rpc_payment(target, m_rpc_payment_threads, startfunc, contfunc, foundfunc, errorfunc);
-    if (!ret)
-    {
-      fail_msg_writer() << tr("Failed to start mining for RPC payment");
-      m_cmd_binder.print_prompt();
-    }
-  }
-  return true;
-}
-//----------------------------------------------------------------------------------------------------
 std::string simple_wallet::get_prompt() const
 {
   if (m_locked)
@@ -10661,7 +10291,6 @@ int main(int argc, char* argv[])
   command_line::add_arg(desc_params, arg_create_address_file);
   command_line::add_arg(desc_params, arg_subaddress_lookahead);
   command_line::add_arg(desc_params, arg_use_english_language_names);
-  command_line::add_arg(desc_params, arg_rpc_client_secret_key);
 
   po::positional_options_description positional_options;
   positional_options.add(arg_command.name, -1);
diff --git a/src/simplewallet/simplewallet.h b/src/simplewallet/simplewallet.h
index acefb0bcc..2a5d7f2b6 100644
--- a/src/simplewallet/simplewallet.h
+++ b/src/simplewallet/simplewallet.h
@@ -154,9 +154,6 @@ namespace cryptonote
     bool set_export_format(const std::vector<std::string> &args = std::vector<std::string>());
     bool set_load_deprecated_formats(const std::vector<std::string> &args = std::vector<std::string>());
     bool set_enable_multisig(const std::vector<std::string> &args = std::vector<std::string>());
-    bool set_persistent_rpc_client_id(const std::vector<std::string> &args = std::vector<std::string>());
-    bool set_auto_mine_for_rpc_payment_threshold(const std::vector<std::string> &args = std::vector<std::string>());
-    bool set_credits_target(const std::vector<std::string> &args = std::vector<std::string>());
     bool help(const std::vector<std::string> &args = std::vector<std::string>());
     bool apropos(const std::vector<std::string> &args);
     bool scan_tx(const std::vector<std::string> &args);
@@ -258,9 +255,6 @@ namespace cryptonote
     bool thaw(const std::vector<std::string>& args);
     bool frozen(const std::vector<std::string>& args);
     bool lock(const std::vector<std::string>& args);
-    bool rpc_payment_info(const std::vector<std::string> &args);
-    bool start_mining_for_rpc(const std::vector<std::string> &args);
-    bool stop_mining_for_rpc(const std::vector<std::string> &args);
     bool show_qr_code(const std::vector<std::string> &args);
     bool net_stats(const std::vector<std::string>& args);
     bool public_nodes(const std::vector<std::string>& args);
@@ -338,7 +332,6 @@ namespace cryptonote
     bool check_inactivity();
     bool check_refresh();
     bool check_mms();
-    bool check_rpc_payment();
 
     void handle_transfer_exception(const std::exception_ptr &e, bool trusted_daemon);
 
@@ -458,17 +451,6 @@ namespace cryptonote
     epee::math_helper::once_a_time_seconds<1> m_inactivity_checker;
     epee::math_helper::once_a_time_seconds_range<get_random_interval<80 * 1000000, 100 * 1000000>> m_refresh_checker;
     epee::math_helper::once_a_time_seconds_range<get_random_interval<90 * 1000000, 110 * 1000000>> m_mms_checker;
-    epee::math_helper::once_a_time_seconds_range<get_random_interval<90 * 1000000, 115 * 1000000>> m_rpc_payment_checker;
-    
-    std::atomic<bool> m_need_payment;
-    boost::posix_time::ptime m_last_rpc_payment_mining_time;
-    bool m_rpc_payment_mining_requested;
-    uint32_t m_rpc_payment_threads = 0;
-    bool m_daemon_rpc_payment_message_displayed;
-    float m_rpc_payment_hash_rate;
-    std::atomic<bool> m_suspend_rpc_payment_mining;
-
-    std::unordered_map<std::string, uint32_t> m_claimed_cph;
 
     // MMS
     mms::message_store& get_message_store() const { return m_wallet->get_message_store(); };