Create special accounts

libraries/chain/chain_controller.cpp

@@ -707,7 +707,8 @@ void chain_controller::create_block_summary(const signed_block& next_block) {
 }
 
 void chain_controller::update_global_properties(const signed_block& b) {
-   // If we're at the end of a round, update the BlockchainConfiguration and producer schedule
+   // If we're at the end of a round, update the BlockchainConfiguration, producer schedule
+   // and "producers" special account authority
    if (b.block_num() % config::BlocksPerRound == 0) {
       auto schedule = calculate_next_round(b);
       auto config = _admin->get_blockchain_configuration(_db, schedule);
@@ -717,6 +718,16 @@ void chain_controller::update_global_properties(const signed_block& b) {
          gpo.active_producers = std::move(schedule);
          gpo.configuration = std::move(config);
       });
+
+      auto active_producers_authority = types::Authority(uint32_t(gpo.active_producers.size()*config::ProducersAuthorityThreshold), {}, {});
+      for(auto& name : gpo.active_producers) {
+         active_producers_authority.accounts.push_back({{name, config::ActiveName}, 1});
+      }
+
+      auto& po = _db.get<permission_object, by_owner>( boost::make_tuple(config::ProducersAccountName, config::ActiveName) );
+      _db.modify(po,[active_producers_authority] (permission_object& po) {
+         po.auth = active_producers_authority;
+      });
    }
 }
 

libraries/chain/include/eos/chain/config.hpp

@@ -22,21 +22,29 @@
  * THE SOFTWARE.
  */
 #pragma once
-#include <eos/types/native.hpp>
-#include <eos/types/Asset.hpp>
+#include <eos/types/types.hpp>
 
 namespace eos { namespace config {
 using types::UInt32;
 using types::UInt64;
 using types::UInt128;
 using types::ShareType;
 using types::Asset;
+using types::AccountName;
+using types::PermissionName;
 
 const static char KeyPrefix[] = "EOS";
 
-const static char SystemContractName[] = "system";
-const static char EosContractName[] = "eos";
-const static char StakedBalanceContractName[] = "staked";
+const static AccountName SystemContractName = N(system);
+const static AccountName EosContractName = N(eos);
+const static AccountName StakedBalanceContractName = N(staked);
+
+const static AccountName NobodyAccountName = N(nobody);
+const static AccountName AnybodyAccountName = N(anybody);
+const static AccountName ProducersAccountName = N(producers);
+
+const static PermissionName ActiveName = N(active);
+const static PermissionName OwnerName = N(owner);
 
 const static ShareType InitialTokenSupply = Asset::fromString("90000000.00000000 EOS").amount;
 
@@ -53,6 +61,7 @@ const static ShareType DefaultElectedPay = Asset(100).amount;
 const static ShareType DefaultRunnerUpPay = Asset(75).amount;
 const static ShareType DefaultMinEosBalance = Asset(100).amount;
 const static UInt32 DefaultMaxTrxLifetime = 60*60;
+const static double ProducersAuthorityThreshold = 2.0/3.0;
 
 const static int BlocksPerRound = 21;
 const static int VotedProducersPerRound = 20;

libraries/native_contract/native_contract_chain_initializer.cpp

@@ -5,6 +5,7 @@
 #include <eos/native_contract/system_contract.hpp>
 
 #include <eos/chain/producer_object.hpp>
+#include <eos/chain/permission_object.hpp>
 
 #include <boost/range/adaptor/transformed.hpp>
 #include <boost/range/algorithm/copy.hpp>
@@ -143,6 +144,36 @@ std::vector<chain::Message> native_contract_chain_initializer::prepare_database(
    });
    boost::copy(genesis.initial_producers | CreateProducer, std::back_inserter(messages_to_process));
 
+   // Create special accounts
+   auto create_special_account = [this, &db](Name name, const auto& owner, const auto& active) {
+      db.create<account_object>([this, &name](account_object& a) {
+         a.name = name;
+         a.creation_date = genesis.initial_timestamp;
+      });
+      const auto& owner_permission = db.create<permission_object>([&owner, &name](permission_object& p) {
+         p.name = config::OwnerName;
+         p.parent = 0;
+         p.owner = name;
+         p.auth = std::move(owner);
+      });
+      db.create<permission_object>([&active, &owner_permission](permission_object& p) {
+         p.name = config::ActiveName;
+         p.parent = owner_permission.id;
+         p.owner = owner_permission.owner;
+         p.auth = std::move(active);
+      });
+   };
+
+   auto empty_authority = types::Authority(0, {}, {});
+   auto active_producers_authority = types::Authority(uint32_t(genesis.initial_producers.size()*config::ProducersAuthorityThreshold), {}, {});
+   for(auto& p : genesis.initial_producers) {
+      active_producers_authority.accounts.push_back({{p.owner_name, config::ActiveName}, 1});
+   }
+
+   //CreateNativeAccount(config::AnybodyAccountName, 0);
+   create_special_account(config::NobodyAccountName, empty_authority, empty_authority);
+   create_special_account(config::ProducersAccountName, empty_authority, active_producers_authority);
+
    return messages_to_process;
 }
 

libraries/types/include/eos/types/native.hpp

@@ -18,6 +18,8 @@
 
 #include <fc/reflect/reflect.hpp>
 
+#define N(X) eos::types::string_to_name(#X)
+
 namespace eos { namespace types {
    using namespace boost::multiprecision;
 
@@ -55,7 +57,33 @@ namespace eos { namespace types {
    using Int128    = boost::multiprecision::int128_t;
    using Int256    = boost::multiprecision::int256_t;
    using uint128_t = unsigned __int128; /// native clang/gcc 128 intrinisic
+
+   static constexpr char char_to_symbol( char c ) {
+      if( c >= 'a' && c <= 'z' )
+         return (c - 'a') + 1;
+      if( c >= '1' && c <= '5' )
+         return (c - '1') + 26;
+      return 0;
+   }
+
+   static constexpr uint64_t string_to_name( const char* str ) {
+      uint32_t len = 0;
+      while( str[len] ) ++len;
+
+      uint64_t value = 0;
+
+      for( uint32_t i = 0; i <= 12 && i < len; ++i ) {
+         value <<= 5;
+         value |= char_to_symbol( str[ len -1 - i ] );
+      }
 
+      if( len == 13 ) {
+         value <<= 4;
+         value |= 0x0f & char_to_symbol( str[ 12 ] );
+      }
+      return value;
+   }
+
    struct Name {
       uint64_t value = 0;
       bool valid()const { return 0 == (value >> 60); }
@@ -80,16 +108,6 @@ namespace eos { namespace types {
          }
       }FC_CAPTURE_AND_RETHROW( (str) ) }
 
-
-      char char_to_symbol( char c ) const {
-         if( c >= 'a' && c <= 'z' )
-            return (c - 'a') + 1;
-         if( c >= '1' && c <= '5' )
-            return (c - '1') + 27;
-         //FC_ASSERT( c == '.', "invalid character '${c}' (${i}) in Name string", ("c", String(&c,1))("i",int(c)) );
-         return 0;
-      }
-
       Name( uint64_t v = 0 ):value(v){
       //   FC_ASSERT( !(v>>(5*12)), "invalid name id" );
       }

tests/tests/special_accounts_tests.cpp

@@ -0,0 +1,143 @@
+#include <algorithm>
+#include <vector>
+#include <iterator>
+#include <boost/test/unit_test.hpp>
+
+#include <eos/chain/chain_controller.hpp>
+#include <eos/chain/exceptions.hpp>
+#include <eos/chain/permission_object.hpp>
+#include <eos/chain/key_value_object.hpp>
+
+#include <eos/native_contract/producer_objects.hpp>
+
+#include <eos/utilities/tempdir.hpp>
+
+#include <fc/crypto/digest.hpp>
+
+#include <boost/test/unit_test.hpp>
+#include <boost/range/algorithm/find.hpp>
+#include <boost/range/algorithm/find_if.hpp>
+#include <boost/range/algorithm/permutation.hpp>
+
+#include "../common/database_fixture.hpp"
+
+using namespace eos;
+using namespace chain;
+
+BOOST_AUTO_TEST_SUITE(special_account_tests)
+
+//Check special accounts exits in genesis
+BOOST_FIXTURE_TEST_CASE(accounts_exists, testing_fixture)
+{ try {
+
+      Make_Blockchain(chain);
+
+      auto nobody = chain_db.find<account_object, by_name>(config::NobodyAccountName);
+      BOOST_CHECK(nobody != nullptr);
+      const auto& nobody_active_authority = chain_db.get<permission_object, by_owner>(boost::make_tuple(config::NobodyAccountName, config::ActiveName));
+      BOOST_CHECK_EQUAL(nobody_active_authority.auth.threshold, 0);
+      BOOST_CHECK_EQUAL(nobody_active_authority.auth.accounts.size(), 0);
+      BOOST_CHECK_EQUAL(nobody_active_authority.auth.keys.size(), 0);
+
+      const auto& nobody_owner_authority = chain_db.get<permission_object, by_owner>(boost::make_tuple(config::NobodyAccountName, config::OwnerName));
+      BOOST_CHECK_EQUAL(nobody_owner_authority.auth.threshold, 0);
+      BOOST_CHECK_EQUAL(nobody_owner_authority.auth.accounts.size(), 0);
+      BOOST_CHECK_EQUAL(nobody_owner_authority.auth.keys.size(), 0);
+
+      // TODO: check for anybody account
+      //auto anybody = chain_db.find<account_object, by_name>(config::AnybodyAccountName);
+      //BOOST_CHECK(anybody == nullptr);
+
+      auto producers = chain_db.find<account_object, by_name>(config::ProducersAccountName);
+      BOOST_CHECK(producers != nullptr);
+
+      auto& gpo = chain_db.get<global_property_object>();
+      auto threshold = uint32_t(gpo.active_producers.size()*config::ProducersAuthorityThreshold);
+
+      const auto& producers_active_authority = chain_db.get<permission_object, by_owner>(boost::make_tuple(config::ProducersAccountName, config::ActiveName));
+      BOOST_CHECK_EQUAL(producers_active_authority.auth.threshold, threshold);
+      BOOST_CHECK_EQUAL(producers_active_authority.auth.accounts.size(), gpo.active_producers.size());
+      BOOST_CHECK_EQUAL(producers_active_authority.auth.keys.size(), 0);
+
+      std::vector<AccountName> active_auth;
+      for(auto& apw : producers_active_authority.auth.accounts) {
+         active_auth.emplace_back(apw.permission.account);
+      }
+
+      std::vector<AccountName> diff;
+      std::set_difference(
+         active_auth.begin(),
+         active_auth.end(),
+         gpo.active_producers.begin(),
+         gpo.active_producers.end(),
+         std::inserter(diff, diff.begin())
+      );
+
+      BOOST_CHECK_EQUAL(diff.size(), 0);
+
+      const auto& producers_owner_authority = chain_db.get<permission_object, by_owner>(boost::make_tuple(config::ProducersAccountName, config::OwnerName));
+      BOOST_CHECK_EQUAL(producers_owner_authority.auth.threshold, 0);
+      BOOST_CHECK_EQUAL(producers_owner_authority.auth.accounts.size(), 0);
+      BOOST_CHECK_EQUAL(producers_owner_authority.auth.keys.size(), 0);
+
+} FC_LOG_AND_RETHROW() }
+
+//Check correct authority when new set of producers are elected
+BOOST_FIXTURE_TEST_CASE(producers_authority, testing_fixture)
+{ try {
+
+      Make_Blockchain(chain)
+      chain.produce_blocks();
+
+      Make_Account(chain, alice);
+      Make_Account(chain, bob);
+      Make_Account(chain, charlie);
+
+      Make_Account(chain, newproducer1); Make_Producer(chain, newproducer1);
+      Make_Account(chain, newproducer2); Make_Producer(chain, newproducer2);
+      Make_Account(chain, newproducer3); Make_Producer(chain, newproducer3);
+
+      Approve_Producer(chain, alice, newproducer1, true);
+      Approve_Producer(chain, bob, newproducer2, true);
+      Approve_Producer(chain, charlie, newproducer3, true);
+
+      chain.produce_blocks(config::BlocksPerRound - chain.head_block_num() );
+
+      auto& gpo = chain_db.get<global_property_object>();
+
+      BOOST_REQUIRE(boost::find(gpo.active_producers, "newproducer1") != gpo.active_producers.end());
+      BOOST_REQUIRE(boost::find(gpo.active_producers, "newproducer2") != gpo.active_producers.end());
+      BOOST_REQUIRE(boost::find(gpo.active_producers, "newproducer3") != gpo.active_producers.end());
+
+      auto threshold = uint32_t(gpo.active_producers.size()*config::ProducersAuthorityThreshold);
+
+      const auto& producers_active_authority = chain_db.get<permission_object, by_owner>(boost::make_tuple(config::ProducersAccountName, config::ActiveName));
+      BOOST_CHECK_EQUAL(producers_active_authority.auth.threshold, threshold);
+      BOOST_CHECK_EQUAL(producers_active_authority.auth.accounts.size(), gpo.active_producers.size());
+      BOOST_CHECK_EQUAL(producers_active_authority.auth.keys.size(), 0);
+
+      std::vector<AccountName> active_auth;
+      for(auto& apw : producers_active_authority.auth.accounts) {
+         active_auth.emplace_back(apw.permission.account);
+      }
+
+      std::vector<AccountName> diff;
+      std::set_difference(
+         active_auth.begin(),
+         active_auth.end(),
+         gpo.active_producers.begin(),
+         gpo.active_producers.end(),
+         std::inserter(diff, diff.begin())
+      );
+
+      BOOST_CHECK_EQUAL(diff.size(), 0);
+
+      const auto& producers_owner_authority = chain_db.get<permission_object, by_owner>(boost::make_tuple(config::ProducersAccountName, config::OwnerName));
+      BOOST_CHECK_EQUAL(producers_owner_authority.auth.threshold, 0);
+      BOOST_CHECK_EQUAL(producers_owner_authority.auth.accounts.size(), 0);
+      BOOST_CHECK_EQUAL(producers_owner_authority.auth.keys.size(), 0);
+
+} FC_LOG_AND_RETHROW() }
+
+
+BOOST_AUTO_TEST_SUITE_END()