void user_auction_claim_operation::evaluate( transaction_evaluation_state& eval_state )
{ try {
FC_ASSERT( !"This operation is not enabled yet!" );
auto chain = eval_state._current_state;
auto obj = chain->get_object_record( this->auction_id );
FC_ASSERT( obj.valid(), "No such auction." );
auto auction = obj->as<user_auction_record>();
FC_ASSERT( auction.is_complete( *chain ), "Auction is not over yet." );
if( this->claim_balance )
{
FC_ASSERT( NOT auction.balance_claimed,
"Those auction winnings have already been claimed." );
eval_state.check_update_permission( auction.beneficiary );
eval_state.add_balance( auction.previous_bid );
auction.balance_claimed = true;
}
if( this->claim_object ) // set the item's owner to the winner
{
FC_ASSERT( NOT auction.object_claimed, "That object has already been claimed." );
eval_state.check_update_permission( auction.previous_bidder );
auto item = chain->get_object_record( auction.item );
FC_ASSERT( item->owner_object == auction._id, "An auction was being held for an item owned by someone else?");
item->owner_object = auction.previous_bidder;
chain->store_object_record( *item );
auction.object_claimed = true;
}
chain->store_object_record( object_record( auction ) );
} FC_CAPTURE_AND_RETHROW( (eval_state)(*this) ) }
void ad_operation::evaluate( transaction_evaluation_state& eval_state )const
{ try {
if( this->amount.amount <= 0 )
FC_CAPTURE_AND_THROW( negative_deposit, (amount) );
FC_ASSERT( !message.empty() );
FC_ASSERT( amount.asset_id == 0 );
const size_t message_kb = (message.size() / 1024) + 1;
const share_type required_fee = message_kb * BTS_BLOCKCHAIN_MIN_AD_FEE;
FC_ASSERT( amount.amount >= required_fee, "Message of size ${s} KiB requires at least ${a} satoshis to be pay!",
("s",message_kb)("a",required_fee) );
// half of the note fees goto collected fees(delegate pay), other go to ad owner
eval_state.min_fees[amount.asset_id] += required_fee;
FC_ASSERT( owner_account_id != 0 );
const oaccount_record owner_account_rec = eval_state.pending_state()->get_account_record( abs( this->owner_account_id ) );
FC_ASSERT( owner_account_rec.valid() );
auto owner_address = owner_account_rec->active_address();
auto ad_income_balance = eval_state.pending_state()->get_balance_record(withdraw_condition( withdraw_with_signature(owner_address), 0 ).get_address());
if( !ad_income_balance )
ad_income_balance = balance_record( owner_address, asset(0, 0), 0 );
auto ad_pay = amount.amount - required_fee;
ad_income_balance->balance += ad_pay;
ad_income_balance->last_update = eval_state.pending_state()->now();
ad_income_balance->deposit_date = eval_state.pending_state()->now();
eval_state.pending_state()->store_balance_record( *ad_income_balance );
eval_state.sub_balance( asset(ad_pay, amount.asset_id) );
// checking the signature of the publisher.
FC_ASSERT( publisher_account_id != 0 );
const oaccount_record publisher_account_rec = eval_state.pending_state()->get_account_record( abs( this->publisher_account_id ) );
FC_ASSERT( publisher_account_rec.valid() );
eval_state.check_signature( publisher_account_rec->active_key() );
ad_record record;
record.index.account_id = owner_account_id;
record.index.transaction_id = eval_state.trx.id();
record.publisher_id = publisher_account_id;
record.amount = amount;
record.message = message;
record.signer = message_signature;
// the message must be signed by the claimed publisher account
FC_ASSERT( publisher_account_rec->active_key() == record.signer_key() );
FC_ASSERT( !eval_state.pending_state()->get_ad_record( record.index ).valid() );
eval_state.pending_state()->store_ad_record( std::move( record ) );
} FC_CAPTURE_AND_RETHROW( (*this) ) }
void transaction_validator::validate_name_output( const trx_output& out,
transaction_evaluation_state& state,
const block_evaluation_state_ptr& block_state )
{
auto claim = out.as<claim_name_output>();
block_state->add_name_output( claim );
if( !state.has_name_input( claim ) )
{
auto name_rec = _db->lookup_name( claim.name );
FC_ASSERT( !name_rec );
}
FC_ASSERT( out.amount.unit == 0 );
state.add_output_asset( out.amount );
}
void transaction_validator::validate_signature_input( const meta_trx_input& in,
transaction_evaluation_state& state,
const block_evaluation_state_ptr& block_state )
{
auto claim = in.output.as<claim_by_signature_output>();
FC_ASSERT( state.has_signature( claim.owner ), "", ("owner",claim.owner)("sigs",state.sigs) );
state.add_input_asset( in.output.amount );
if( in.output.amount.unit == 0 )
{
accumulate_votes( in.output.amount.get_rounded_amount(), in.source.block_num, state );
block_state->add_input_delegate_votes( in.delegate_id, in.output.amount );
block_state->add_output_delegate_votes( state.trx.vote, in.output.amount );
}
}
void data_operation::evaluate( transaction_evaluation_state& eval_state )const
{
#ifndef WIN32
#warning [SOFTFORK] Remove this check after BTS_V0_9_0_FORK_BLOCK_NUM has passed
#endif
FC_ASSERT( eval_state.pending_state()->get_head_block_num() >= BTS_V0_9_0_FORK_BLOCK_NUM );
}
void burn_operation::evaluate( transaction_evaluation_state& eval_state )
{ try {
if( message.size() )
FC_ASSERT( amount.asset_id == 0 );
if( amount.asset_id == 0 )
{
FC_ASSERT( amount.amount >= BTS_BLOCKCHAIN_MIN_BURN_FEE, "",
("amount",amount)
("BTS_BLOCKCHAIN_MIN_BURN_FEE",BTS_BLOCKCHAIN_MIN_BURN_FEE) );
}
oasset_record asset_rec = eval_state._current_state->get_asset_record( amount.asset_id );
FC_ASSERT( asset_rec.valid() );
FC_ASSERT( !asset_rec->is_market_issued() );
asset_rec->current_share_supply -= this->amount.amount;
eval_state.sub_balance( address(), this->amount );
eval_state._current_state->store_asset_record( *asset_rec );
if( account_id != 0 ) // you can offer burnt offerings to God if you like... otherwise it must be an account
{
// TODO: support burning to any OBJECT ID not just accounts
const oaccount_record account_rec = eval_state._current_state->get_account_record( abs( this->account_id ) );
FC_ASSERT( account_rec.valid() );
}
eval_state._current_state->store_burn_record( burn_record( burn_record_key( {account_id, eval_state.trx.id()} ),
burn_record_value( {amount,message,message_signature} ) ) );
} FC_CAPTURE_AND_RETHROW( (*this) ) }
void domain_update_signin_operation::evaluate( transaction_evaluation_state& eval_state )
{
auto odomain_rec = eval_state._current_state->get_domain_record( this->domain_name );
auto now = eval_state._current_state->now().sec_since_epoch();
FC_ASSERT( odomain_rec.valid(), "Trying to update domain which does not exist" );
FC_ASSERT( odomain_rec->get_true_state(now) == domain_record::owned,
"Attempting to update a domain which is not in 'owned' state");
FC_ASSERT( eval_state.check_signature( odomain_rec->owner ), "Update not signed by owner" );
odomain_rec->signin_key = this->signin_key;
odomain_rec->last_update = eval_state._current_state->now().sec_since_epoch();
eval_state._current_state->store_domain_record( *odomain_rec );
}
void note_operation::evaluate( transaction_evaluation_state& eval_state )const
{ try {
#ifndef WIN32
#warning [HARDFORK] Remove this check after PLS_V0_1_0_FORK_BLOCK_NUM has passed
#endif
FC_ASSERT( eval_state.pending_state()->get_head_block_num() >= PLS_V0_1_0_FORK_BLOCK_NUM );
if( this->amount.amount <= 0 )
FC_CAPTURE_AND_THROW( negative_deposit, (amount) );
FC_ASSERT( !message->data.empty() );
FC_ASSERT( amount.asset_id == 0 );
const size_t message_kb = (message->data.size() / 1024) + 1;
const share_type required_fee = message_kb * BTS_BLOCKCHAIN_MIN_NOTE_FEE;
FC_ASSERT( amount.amount >= required_fee, "Message of size ${s} KiB requires at least ${a} satoshis to be burned!",
("s",message_kb)("a",required_fee) );
// 30% of the note fees goto collected fees(delegate pay), other go to the operation pool
eval_state.min_fees[amount.asset_id] += amount.amount * 3 / 10;
// TODO: instead of burn, the left will go to a fee pool attached to this operation.
auto op_reward_record = eval_state.pending_state()->get_operation_reward_record(note_op_type);
auto reward_fee = amount.amount - amount.amount * 3 / 10;
op_reward_record->fees[amount.asset_id] += reward_fee;
eval_state.sub_balance( asset(reward_fee, amount.asset_id) );
eval_state.pending_state()->store_operation_reward_record( *op_reward_record );
// the transaction check the signature of the owner
const oaccount_record account_rec = eval_state.pending_state()->get_account_record( abs( this->owner_account_id ) );
FC_ASSERT( account_rec.valid() );
eval_state.check_signature( account_rec->active_key() );
note_record record;
record.index.account_id = owner_account_id;
record.index.transaction_id = eval_state.trx.id();
record.amount = amount;
record.message = message;
record.signer = message_signature;
// verify the signature of the message, the message signer must be the account_id's active key
FC_ASSERT( account_rec->active_key() == record.signer_key() );
FC_ASSERT( !eval_state.pending_state()->get_note_record( record.index ).valid() );
eval_state.pending_state()->store_note_record( std::move( record ) );
} FC_CAPTURE_AND_RETHROW( (*this) ) }
void add_collateral_operation::evaluate( transaction_evaluation_state& eval_state )
{
FC_ASSERT(!"Not implemented for this DAC.\n");
if( this->cover_index.order_price == price() )
FC_CAPTURE_AND_THROW( zero_price, (cover_index.order_price) );
if( this->amount == 0 )
FC_CAPTURE_AND_THROW( zero_amount );
if( this->amount < 0 )
FC_CAPTURE_AND_THROW( negative_deposit );
asset delta_amount = this->get_amount();
eval_state.sub_balance( address(), delta_amount );
// update collateral and call price
auto current_cover = eval_state._current_state->get_collateral_record( this->cover_index );
if( NOT current_cover )
FC_CAPTURE_AND_THROW( unknown_market_order, (cover_index) );
current_cover->collateral_balance += delta_amount.amount;
// changing the payoff balance changes the call price... so we need to remove the old record
// and insert a new one.
eval_state._current_state->store_collateral_record( this->cover_index, collateral_record() );
auto new_call_price = asset(current_cover->payoff_balance, delta_amount.asset_id) /
asset((current_cover->collateral_balance*3)/4, 0);
eval_state._current_state->store_collateral_record( market_index_key( new_call_price, this->cover_index.owner),
*current_cover );
auto market_stat = eval_state._current_state->get_market_status( cover_index.order_price.quote_asset_id, cover_index.order_price.base_asset_id );
FC_ASSERT( market_stat, "this should be valid for there to even be a position to cover" );
market_stat->ask_depth += delta_amount.amount;
eval_state._current_state->store_market_status( *market_stat );
}
void burn_operation::evaluate( transaction_evaluation_state& eval_state )const
{ try {
if( this->amount.amount <= 0 )
FC_CAPTURE_AND_THROW( negative_deposit, (amount) );
if( !message.empty() )
FC_ASSERT( amount.asset_id == 0 );
if( amount.asset_id == 0 )
{
const size_t message_kb = (message.size() / 1024) + 1;
const share_type required_fee = message_kb * BTS_BLOCKCHAIN_MIN_BURN_FEE;
FC_ASSERT( amount.amount >= required_fee, "Message of size ${s} KiB requires at least ${a} satoshis to be burned!",
("s",message_kb)("a",required_fee) );
}
oasset_record asset_rec = eval_state.pending_state()->get_asset_record( amount.asset_id );
FC_ASSERT( asset_rec.valid() );
FC_ASSERT( !asset_rec->is_market_issued() );
asset_rec->current_supply -= this->amount.amount;
eval_state.sub_balance( this->amount );
eval_state.pending_state()->store_asset_record( *asset_rec );
if( account_id != 0 ) // you can offer burnt offerings to God if you like... otherwise it must be an account
{
const oaccount_record account_rec = eval_state.pending_state()->get_account_record( abs( this->account_id ) );
FC_ASSERT( account_rec.valid() );
}
burn_record record;
record.index.account_id = account_id;
record.index.transaction_id = eval_state.trx.id();
record.amount = amount;
record.message = message;
record.signer = message_signature;
FC_ASSERT( !eval_state.pending_state()->get_burn_record( record.index ).valid() );
eval_state.pending_state()->store_burn_record( std::move( record ) );
} FC_CAPTURE_AND_RETHROW( (*this) ) }
transaction_summary transaction_validator::on_evaluate( transaction_evaluation_state& state,
const block_evaluation_state_ptr& block_state )
{
transaction_summary sum;
state.inputs = _db->fetch_inputs( state.trx.inputs );
auto trx_delegate = _db->lookup_delegate( state.trx.vote );
FC_ASSERT( !!trx_delegate, "unable to find delegate id ${id}", ("id",state.trx.vote) );
/** make sure inputs are unique */
std::unordered_set<output_reference> unique_inputs;
for( auto in : state.trx.inputs )
{
FC_ASSERT( unique_inputs.insert( in.output_ref ).second,
"transaction references same output more than once.", ("trx",state.trx) )
}
/** validate all inputs */
for( auto in : state.inputs )
{
FC_ASSERT( !in.meta_output.is_spent(), "", ("trx",state.trx) );
validate_input( in, state, block_state );
}
/** validate all inputs */
for( auto out : state.trx.outputs )
validate_output( out, state, block_state );
state.balance_assets();
sum.valid_votes = state.valid_votes;
sum.invalid_votes = state.invalid_votes;
sum.spent = state.spent;
sum.fees = state.get_total_in(0) - state.get_total_out(0);
if( state.get_required_fees() >= 0 )
{
FC_ASSERT( sum.fees >= state.get_required_fees(0), "",
("fees",sum.fees)("required",state.get_required_fees()));
}
return sum;
}
void withdraw_operation::evaluate_v3( transaction_evaluation_state& eval_state )
{ try {
if( eval_state._current_state->get_head_block_num() < BTS_V0_4_15_FORK_BLOCK_NUM )
return evaluate_v2( eval_state );
if( this->amount <= 0 )
FC_CAPTURE_AND_THROW( negative_deposit, (amount) );
obalance_record current_balance_record = eval_state._current_state->get_balance_record( this->balance_id );
if( !current_balance_record )
FC_CAPTURE_AND_THROW( unknown_balance_record, (balance_id) );
if( this->amount > current_balance_record->balance ) // Some withdraw conditions require extra checks (e.g. vesting condition)
FC_CAPTURE_AND_THROW( insufficient_funds,
(current_balance_record)
(amount)
(current_balance_record->balance - amount) );
switch( (withdraw_condition_types)current_balance_record->condition.type )
{
case withdraw_signature_type:
{
auto owner = current_balance_record->condition.as<withdraw_with_signature>().owner;
if( !eval_state.check_signature( owner ) )
FC_CAPTURE_AND_THROW( missing_signature, (owner) );
break;
}
default:
FC_CAPTURE_AND_THROW( invalid_withdraw_condition, (current_balance_record->condition) );
}
// update delegate vote on withdrawn account..
if( current_balance_record->condition.asset_id == 0 && current_balance_record->condition.delegate_slate_id )
eval_state.adjust_vote( current_balance_record->condition.delegate_slate_id, -this->amount );
auto asset_rec = eval_state._current_state->get_asset_record( current_balance_record->condition.asset_id );
FC_ASSERT( asset_rec.valid() );
if( asset_rec->is_market_issued() )
{
auto yield = current_balance_record->calculate_yield_v1( eval_state._current_state->now(),
current_balance_record->balance,
asset_rec->collected_fees,
asset_rec->current_share_supply );
if( yield.amount > 0 )
{
asset_rec->collected_fees -= yield.amount;
current_balance_record->balance += yield.amount;
current_balance_record->deposit_date = eval_state._current_state->now();
eval_state.yield[current_balance_record->condition.asset_id] += yield.amount;
eval_state._current_state->store_asset_record( *asset_rec );
}
}
current_balance_record->balance -= this->amount;
current_balance_record->last_update = eval_state._current_state->now();
eval_state._current_state->store_balance_record( *current_balance_record );
eval_state.add_balance( asset(this->amount, current_balance_record->condition.asset_id) );
} FC_CAPTURE_AND_RETHROW( (*this) ) }
void update_balance_vote_operation::evaluate( transaction_evaluation_state& eval_state )const
{ try {
auto current_balance_record = eval_state.pending_state()->get_balance_record( this->balance_id );
FC_ASSERT( current_balance_record.valid(), "No such balance!" );
FC_ASSERT( current_balance_record->condition.asset_id == 0, "Only BTS balances can have restricted owners." );
FC_ASSERT( current_balance_record->condition.type == withdraw_signature_type, "Restricted owners not enabled for anything but basic balances" );
auto last_update_secs = current_balance_record->last_update.sec_since_epoch();
ilog("last_update_secs is: ${secs}", ("secs", last_update_secs) );
auto balance = current_balance_record->balance;
auto fee = BTS_BLOCKCHAIN_PRECISION / 2;
FC_ASSERT( balance > fee );
auto asset_rec = eval_state.pending_state()->get_asset_record( current_balance_record->condition.asset_id );
if( asset_rec->is_market_issued() ) FC_ASSERT( current_balance_record->condition.slate_id == 0 );
if( current_balance_record->condition.slate_id )
{
eval_state.adjust_vote( current_balance_record->condition.slate_id, -balance );
}
current_balance_record->balance -= balance;
current_balance_record->last_update = eval_state.pending_state()->now();
ilog("I'm storing a balance record whose last update is: ${secs}", ("secs", current_balance_record->last_update) );
eval_state.pending_state()->store_balance_record( *current_balance_record );
auto new_restricted_owner = current_balance_record->restricted_owner;
auto new_slate = current_balance_record->condition.slate_id;
if( this->new_restricted_owner.valid() && (this->new_restricted_owner != new_restricted_owner) )
{
ilog("@n new restricted owner specified and its not the existing one");
for( const auto& owner : current_balance_record->owners() ) //eventually maybe multisig can delegate vote
{
if( !eval_state.check_signature( owner ) )
FC_CAPTURE_AND_THROW( missing_signature, (owner) );
}
new_restricted_owner = this->new_restricted_owner;
new_slate = this->new_slate;
}
else // NOT this->new_restricted_owner.valid() || (this->new_restricted_owner == new_restricted_owner)
{
auto restricted_owner = current_balance_record->restricted_owner;
/*
FC_ASSERT( restricted_owner.valid(),
"Didn't specify a new restricted owner, but one currently exists." );
*/
ilog( "@n now: ${secs}", ("secs", eval_state.pending_state()->now().sec_since_epoch()) );
ilog( "@n last update: ${secs}", ("secs", last_update_secs ) );
FC_ASSERT( eval_state.pending_state()->now().sec_since_epoch() - last_update_secs
>= BTS_BLOCKCHAIN_VOTE_UPDATE_PERIOD_SEC,
"You cannot update your vote this frequently with only the voting key!" );
if( NOT eval_state.check_signature( *restricted_owner ) )
{
const auto& owners = current_balance_record->owners();
for( const auto& owner : owners ) //eventually maybe multisig can delegate vote
{
if( NOT eval_state.check_signature( owner ) )
FC_CAPTURE_AND_THROW( missing_signature, (owner) );
}
}
new_slate = this->new_slate;
}
const auto owner = current_balance_record->owner();
FC_ASSERT( owner.valid() );
withdraw_condition new_condition( withdraw_with_signature( *owner ), 0, new_slate );
balance_record newer_balance_record( new_condition );
auto new_balance_record = eval_state.pending_state()->get_balance_record( newer_balance_record.id() );
if( !new_balance_record.valid() )
new_balance_record = current_balance_record;
new_balance_record->condition = new_condition;
if( new_balance_record->balance == 0 )
{
new_balance_record->deposit_date = eval_state.pending_state()->now();
}
else
{
fc::uint128 old_sec_since_epoch( current_balance_record->deposit_date.sec_since_epoch() );
fc::uint128 new_sec_since_epoch( eval_state.pending_state()->now().sec_since_epoch() );
fc::uint128 avg = (old_sec_since_epoch * new_balance_record->balance) + (new_sec_since_epoch * balance);
avg /= (new_balance_record->balance + balance);
new_balance_record->deposit_date = time_point_sec( avg.to_integer() );
}
new_balance_record->last_update = eval_state.pending_state()->now();
new_balance_record->balance += (balance - fee);
new_balance_record->restricted_owner = new_restricted_owner;
eval_state.add_balance( asset(fee, 0) );
// update delegate vote on deposited account..
if( new_balance_record->condition.slate_id )
eval_state.adjust_vote( new_balance_record->condition.slate_id, (balance-fee) );
ilog("I'm storing a balance record whose last update is: ${secs}", ("secs", new_balance_record->last_update) );
eval_state.pending_state()->store_balance_record( *new_balance_record );
} FC_CAPTURE_AND_RETHROW( (*this) ) }
void release_escrow_operation::evaluate( transaction_evaluation_state& eval_state )const
{ try {
auto escrow_balance_record = eval_state.pending_state()->get_balance_record( this->escrow_id );
FC_ASSERT( escrow_balance_record.valid() );
if( this->amount_to_receiver < 0 )
FC_CAPTURE_AND_THROW( negative_withdraw, (amount_to_receiver) );
if( this->amount_to_sender < 0 )
FC_CAPTURE_AND_THROW( negative_withdraw, (amount_to_sender) );
if( !eval_state.check_signature( this->released_by ) )
FC_ASSERT( false, "transaction not signed by releasor" );
auto escrow_condition = escrow_balance_record->condition.as<withdraw_with_escrow>();
auto total_released = uint64_t(amount_to_sender) + uint64_t(amount_to_receiver);
FC_ASSERT( total_released <= escrow_balance_record->balance );
FC_ASSERT( total_released >= amount_to_sender ); // check for addition overflow
FC_ASSERT( total_released >= amount_to_receiver ); // check for addition overflow
escrow_balance_record->balance -= total_released;
auto asset_rec = eval_state.pending_state()->get_asset_record( escrow_balance_record->condition.asset_id );
if( amount_to_sender > 0 )
FC_ASSERT( asset_rec->address_is_whitelisted( escrow_condition.sender ) );
if( amount_to_receiver > 0 )
FC_ASSERT( asset_rec->address_is_whitelisted( escrow_condition.receiver ) );
const bool authority_is_retracting = asset_rec->flag_is_active( asset_record::retractable_balances )
&& eval_state.verify_authority( asset_rec->authority );
if( escrow_condition.sender == this->released_by )
{
FC_ASSERT( amount_to_sender == 0 );
FC_ASSERT( amount_to_receiver <= escrow_balance_record->balance );
if( !eval_state.check_signature( escrow_condition.sender ) && !authority_is_retracting)
FC_CAPTURE_AND_THROW( missing_signature, (escrow_condition.sender) );
balance_record new_balance_record( escrow_condition.receiver,
asset( amount_to_receiver, escrow_balance_record->asset_id() ),
escrow_balance_record->slate_id() );
auto current_receiver_balance = eval_state.pending_state()->get_balance_record( new_balance_record.id());
if( current_receiver_balance )
current_receiver_balance->balance += amount_to_receiver;
else
current_receiver_balance = new_balance_record;
eval_state.pending_state()->store_balance_record( *current_receiver_balance );
}
else if( escrow_condition.receiver == this->released_by )
{
FC_ASSERT( amount_to_receiver == 0 );
FC_ASSERT( amount_to_sender <= escrow_balance_record->balance );
if( !eval_state.check_signature( escrow_condition.receiver ) && !authority_is_retracting)
FC_CAPTURE_AND_THROW( missing_signature, (escrow_condition.receiver) );
balance_record new_balance_record( escrow_condition.sender,
asset( amount_to_sender, escrow_balance_record->asset_id() ),
escrow_balance_record->slate_id() );
auto current_sender_balance = eval_state.pending_state()->get_balance_record( new_balance_record.id());
if( current_sender_balance )
current_sender_balance->balance += amount_to_sender;
else
current_sender_balance = new_balance_record;
eval_state.pending_state()->store_balance_record( *current_sender_balance );
}
else if( escrow_condition.escrow == this->released_by )
{
if( !eval_state.check_signature( escrow_condition.escrow ) && !authority_is_retracting )
FC_CAPTURE_AND_THROW( missing_signature, (escrow_condition.escrow) );
// get a balance record for the receiver, create it if necessary and deposit funds
{
balance_record new_balance_record( escrow_condition.receiver,
asset( amount_to_receiver, escrow_balance_record->asset_id() ),
escrow_balance_record->slate_id() );
auto current_receiver_balance = eval_state.pending_state()->get_balance_record( new_balance_record.id());
if( current_receiver_balance )
current_receiver_balance->balance += amount_to_receiver;
else
current_receiver_balance = new_balance_record;
eval_state.pending_state()->store_balance_record( *current_receiver_balance );
}
// get a balance record for the sender, create it if necessary and deposit funds
{
balance_record new_balance_record( escrow_condition.sender,
asset( amount_to_sender, escrow_balance_record->asset_id() ),
escrow_balance_record->slate_id() );
auto current_sender_balance = eval_state.pending_state()->get_balance_record( new_balance_record.id());
if( current_sender_balance )
current_sender_balance->balance += amount_to_sender;
else
current_sender_balance = new_balance_record;
eval_state.pending_state()->store_balance_record( *current_sender_balance );
}
}
else if( address() == this->released_by )
{
if( !eval_state.check_signature( escrow_condition.sender ) && !authority_is_retracting)
FC_CAPTURE_AND_THROW( missing_signature, (escrow_condition.sender) );
if( !eval_state.check_signature( escrow_condition.receiver ) && !authority_is_retracting)
FC_CAPTURE_AND_THROW( missing_signature, (escrow_condition.receiver) );
// get a balance record for the receiver, create it if necessary and deposit funds
{
balance_record new_balance_record( escrow_condition.receiver,
asset( amount_to_receiver, escrow_balance_record->asset_id() ),
escrow_balance_record->slate_id() );
auto current_receiver_balance = eval_state.pending_state()->get_balance_record( new_balance_record.id());
if( current_receiver_balance )
current_receiver_balance->balance += amount_to_receiver;
else
current_receiver_balance = new_balance_record;
eval_state.pending_state()->store_balance_record( *current_receiver_balance );
}
// get a balance record for the sender, create it if necessary and deposit funds
{
balance_record new_balance_record( escrow_condition.sender,
asset( amount_to_sender, escrow_balance_record->asset_id() ),
escrow_balance_record->slate_id() );
auto current_sender_balance = eval_state.pending_state()->get_balance_record( new_balance_record.id());
if( current_sender_balance )
current_sender_balance->balance += amount_to_sender;
else
current_sender_balance = new_balance_record;
eval_state.pending_state()->store_balance_record( *current_sender_balance );
}
}
else
{
FC_ASSERT( false, "not released by a party to the escrow transaction" );
}
eval_state.pending_state()->store_balance_record( *escrow_balance_record );
} FC_CAPTURE_AND_RETHROW( (*this) ) }
void transaction_validator::validate_pts_signature_output( const trx_output& out,
transaction_evaluation_state& state,
const block_evaluation_state_ptr& block_state )
{
state.add_output_asset( out.amount );
}
void dns_transaction_validator::validate_domain_output(const trx_output& out, transaction_evaluation_state& state)
{
auto dns_state = dynamic_cast<dns_tx_evaluation_state&>(state);
FC_ASSERT( ! dns_state.seen_domain_output,
"More than one domain claim output in one tx: ${tx}", ("tx", state.trx) );
dns_state.seen_domain_output = true;
// "name" and "value" length limits
auto dns_out = out.as<claim_domain_output>();
dns_db* db = dynamic_cast<dns_db*>(_db);
FC_ASSERT( db != nullptr );
/* If we haven't seen a domain input then the only valid output is a new
* domain auction.
*/
if (! dns_state.seen_domain_input)
{
// name doesn't already exist (not in DB OR older than 1 year)
if ( db->has_dns_record(dns_out.name) )
{
auto old_record = db->get_dns_record(dns_out.name);
auto old_tx_id = old_record.last_update_ref.trx_hash;
auto block_num = db->fetch_trx_num(old_tx_id).block_num;
auto current_block = db->head_block_num();
if (current_block - block_num < BTS_BLOCKCHAIN_BLOCKS_PER_YEAR)
{
FC_ASSERT(!"Name already exists (and is younger than 1 block-year)");
}
}
FC_ASSERT(dns_out.flags == claim_domain_output::for_auction,
"New auction started with for_auction flag not set");
return;
}
/* Otherwise, the transaction must have a domain input and it must exist
* in the database, and it can't be expired
*/
//TODO do this just from the input without looking into the DB?
FC_ASSERT( db->has_dns_record(dns_out.name),
"Transaction references a name that doesn't exist");
auto old_record = db->get_dns_record(dns_out.name);
auto old_tx_id = old_record.last_update_ref.trx_hash;
auto block_num = db->fetch_trx_num(old_tx_id).block_num;
auto current_block = db->head_block_num();
auto block_age = current_block - block_num;
FC_ASSERT( block_age < BTS_BLOCKCHAIN_BLOCKS_PER_YEAR,
"Domain transaction references an expired domain as an input");
FC_ASSERT(dns_out.name == dns_state.dns_claimed.name,
"bid transaction refers to different input and output names");
// case on state of claimed output
// * if auction is over (not_for_sale OR output is older than 3 days)
if (dns_out.flags == claim_domain_output::not_for_sale
|| block_age >= 3 * BTS_BLOCKCHAIN_BLOCKS_PER_DAY)
{
// If you're the owner, do whatever you like!
if (! state.has_signature(dns_out.owner) )
{
FC_ASSERT(false, "Domain tx requiring signature doesn't have it: ${tx}",
("tx", state.trx));
}
} else {
// Currently in an auction
FC_ASSERT(dns_out.flags == claim_domain_output::for_auction,
"bid made without keeping for_auction flag");
//TODO use macros in dns_config.hpp instead of hard-coded constants
//TODO restore
FC_ASSERT(out.amount.get_rounded_amount() >=
(11 * dns_state.claimed.amount.get_rounded_amount()) / 10,
"Bid was too small: ${trx}", ("trx", state.trx) );
// half of difference goes to fee
dns_state.add_required_fees((out.amount - dns_state.claimed.amount) / 2);
// check for output to past owner
bool found = false;
for (auto other_out : state.trx.outputs)
{
bool right_claim = other_out.claim_func == claim_by_signature;
bool enough = (other_out.amount ==
dns_state.claimed.amount + (out.amount - dns_state.claimed.amount / 2));
bool to_owner = right_claim &&
other_out.as<claim_by_signature_output>().owner == dns_state.dns_claimed.owner;
if (right_claim && enough && to_owner)
{
found = true;
break;
}
}
if (!found)
{
FC_ASSERT(!"Bid did not pay enough to previous owner");
}
}
}
void withdraw_operation::evaluate( transaction_evaluation_state& eval_state )const
{ try {
if( this->amount <= 0 )
FC_CAPTURE_AND_THROW( negative_withdraw, (amount) );
obalance_record current_balance_record = eval_state.pending_state()->get_balance_record( this->balance_id );
if( !current_balance_record.valid() )
FC_CAPTURE_AND_THROW( unknown_balance_record, (balance_id) );
if( this->amount > current_balance_record->get_spendable_balance( eval_state.pending_state()->now() ).amount )
FC_CAPTURE_AND_THROW( insufficient_funds, (current_balance_record)(amount) );
auto asset_rec = eval_state.pending_state()->get_asset_record( current_balance_record->condition.asset_id );
FC_ASSERT( asset_rec.valid() );
const bool authority_is_retracting = asset_rec->flag_is_active( asset_record::retractable_balances )
&& eval_state.verify_authority( asset_rec->authority );
if( !authority_is_retracting )
{
FC_ASSERT( !asset_rec->flag_is_active( asset_record::halted_withdrawals ) );
switch( (withdraw_condition_types)current_balance_record->condition.type )
{
case withdraw_signature_type:
{
const withdraw_with_signature condition = current_balance_record->condition.as<withdraw_with_signature>();
const address owner = condition.owner;
if( !eval_state.check_signature( owner ) )
FC_CAPTURE_AND_THROW( missing_signature, (owner) );
break;
}
case withdraw_vesting_type:
{
const withdraw_vesting condition = current_balance_record->condition.as<withdraw_vesting>();
const address owner = condition.owner;
if( !eval_state.check_signature( owner ) )
FC_CAPTURE_AND_THROW( missing_signature, (owner) );
break;
}
case withdraw_multisig_type:
{
auto multisig = current_balance_record->condition.as<withdraw_with_multisig>();
uint32_t valid_signatures = 0;
for( const auto& sig : multisig.owners )
valid_signatures += eval_state.check_signature( sig );
if( valid_signatures < multisig.required )
FC_CAPTURE_AND_THROW( missing_signature, (valid_signatures)(multisig) );
break;
}
default:
FC_CAPTURE_AND_THROW( invalid_withdraw_condition, (current_balance_record->condition) );
}
}
// update delegate vote on withdrawn account..
if( current_balance_record->condition.asset_id == 0 && current_balance_record->condition.slate_id )
eval_state.adjust_vote( current_balance_record->condition.slate_id, -this->amount );
if( asset_rec->is_market_issued() )
{
auto yield = current_balance_record->calculate_yield( eval_state.pending_state()->now(),
current_balance_record->balance,
asset_rec->collected_fees,
asset_rec->current_supply );
if( yield.amount > 0 )
{
asset_rec->collected_fees -= yield.amount;
current_balance_record->balance += yield.amount;
current_balance_record->deposit_date = eval_state.pending_state()->now();
eval_state.yield_claimed[ current_balance_record->asset_id() ] += yield.amount;
eval_state.pending_state()->store_asset_record( *asset_rec );
}
}
current_balance_record->balance -= this->amount;
current_balance_record->last_update = eval_state.pending_state()->now();
eval_state.pending_state()->store_balance_record( *current_balance_record );
if( asset_rec->withdrawal_fee != 0 && !eval_state.verify_authority( asset_rec->authority ) )
eval_state.min_fees[ asset_rec->id ] = std::max( asset_rec->withdrawal_fee, eval_state.min_fees[ asset_rec->id ] );
eval_state.add_balance( asset( this->amount, current_balance_record->condition.asset_id ) );
} FC_CAPTURE_AND_RETHROW( (*this) ) }
void deposit_operation::evaluate( transaction_evaluation_state& eval_state )const
{ try {
if( this->amount <= 0 )
FC_CAPTURE_AND_THROW( negative_deposit, (amount) );
switch( withdraw_condition_types( this->condition.type ) )
{
case withdraw_signature_type:
case withdraw_multisig_type:
case withdraw_escrow_type:
break;
default:
FC_CAPTURE_AND_THROW( invalid_withdraw_condition, (*this) );
}
const balance_id_type deposit_balance_id = this->balance_id();
obalance_record cur_record = eval_state.pending_state()->get_balance_record( deposit_balance_id );
if( !cur_record.valid() )
{
cur_record = balance_record( this->condition );
if( this->condition.type == withdraw_escrow_type )
cur_record->meta_data = variant_object("creating_transaction_id", eval_state.trx.id() );
}
if( cur_record->balance == 0 )
{
cur_record->deposit_date = eval_state.pending_state()->now();
}
else
{
fc::uint128 old_sec_since_epoch( cur_record->deposit_date.sec_since_epoch() );
fc::uint128 new_sec_since_epoch( eval_state.pending_state()->now().sec_since_epoch() );
fc::uint128 avg = (old_sec_since_epoch * cur_record->balance) + (new_sec_since_epoch * this->amount);
avg /= (cur_record->balance + this->amount);
cur_record->deposit_date = time_point_sec( avg.to_integer() );
}
cur_record->balance += this->amount;
eval_state.sub_balance( asset( this->amount, cur_record->asset_id() ) );
if( cur_record->condition.asset_id == 0 && cur_record->condition.slate_id )
eval_state.adjust_vote( cur_record->condition.slate_id, this->amount );
cur_record->last_update = eval_state.pending_state()->now();
const oasset_record asset_rec = eval_state.pending_state()->get_asset_record( cur_record->condition.asset_id );
FC_ASSERT( asset_rec.valid() );
if( asset_rec->is_market_issued() )
{
FC_ASSERT( cur_record->condition.slate_id == 0 );
}
const auto& owners = cur_record->owners();
for( const address& owner : owners )
{
FC_ASSERT( asset_rec->address_is_whitelisted( owner ) );
}
eval_state.pending_state()->store_balance_record( *cur_record );
} FC_CAPTURE_AND_RETHROW( (*this) ) }
void release_escrow_operation::evaluate( transaction_evaluation_state& eval_state )
{ try {
FC_ASSERT( !"This operation is not enabled yet!" );
auto escrow_balance_record = eval_state._current_state->get_balance_record( this->escrow_id );
FC_ASSERT( escrow_balance_record.valid() );
if( !eval_state.check_signature( this->released_by ) )
FC_ASSERT( !"transaction not signed by releasor" );
auto escrow_condition = escrow_balance_record->condition.as<withdraw_with_escrow>();
auto total_released = amount_to_sender + amount_to_receiver;
FC_ASSERT( total_released <= escrow_balance_record->balance );
FC_ASSERT( total_released >= amount_to_sender ); // check for addition overflow
escrow_balance_record->balance -= total_released;
auto asset_rec = eval_state._current_state->get_asset_record( escrow_balance_record->condition.asset_id );
if( asset_rec->is_restricted() )
{
FC_ASSERT( eval_state._current_state->get_authorization( escrow_balance_record->condition.asset_id, escrow_condition.receiver ) );
}
if( asset_rec->is_retractable() )
{
if( eval_state.verify_authority( asset_rec->authority ) )
{
//
}
}
if( escrow_condition.sender == this->released_by )
{
FC_ASSERT( amount_to_sender == 0 );
FC_ASSERT( amount_to_receiver <= escrow_balance_record->balance );
if( !eval_state.check_signature( escrow_condition.sender ) )
FC_CAPTURE_AND_THROW( missing_signature, (escrow_condition.sender) );
balance_record new_balance_record( escrow_condition.receiver,
asset( amount_to_receiver, escrow_balance_record->asset_id() ),
escrow_balance_record->slate_id() );
auto current_receiver_balance = eval_state._current_state->get_balance_record( new_balance_record.id());
if( current_receiver_balance )
current_receiver_balance->balance += amount_to_receiver;
else
current_receiver_balance = new_balance_record;
eval_state._current_state->store_balance_record( *current_receiver_balance );
}
else if( escrow_condition.receiver == this->released_by )
{
FC_ASSERT( amount_to_receiver == 0 );
FC_ASSERT( amount_to_sender <= escrow_balance_record->balance );
if( !eval_state.check_signature( escrow_condition.receiver ) )
FC_CAPTURE_AND_THROW( missing_signature, (escrow_condition.receiver) );
balance_record new_balance_record( escrow_condition.sender,
asset( amount_to_sender, escrow_balance_record->asset_id() ),
escrow_balance_record->slate_id() );
auto current_sender_balance = eval_state._current_state->get_balance_record( new_balance_record.id());
if( current_sender_balance )
current_sender_balance->balance += amount_to_sender;
else
current_sender_balance = new_balance_record;
eval_state._current_state->store_balance_record( *current_sender_balance );
}
else if( escrow_condition.escrow == this->released_by )
{
if( !eval_state.check_signature( escrow_condition.escrow ) )
FC_CAPTURE_AND_THROW( missing_signature, (escrow_condition.escrow) );
// get a balance record for the receiver, create it if necessary and deposit funds
{
balance_record new_balance_record( escrow_condition.receiver,
asset( amount_to_receiver, escrow_balance_record->asset_id() ),
escrow_balance_record->slate_id() );
auto current_receiver_balance = eval_state._current_state->get_balance_record( new_balance_record.id());
if( current_receiver_balance )
current_receiver_balance->balance += amount_to_receiver;
else
current_receiver_balance = new_balance_record;
eval_state._current_state->store_balance_record( *current_receiver_balance );
}
// get a balance record for the sender, create it if necessary and deposit funds
{
balance_record new_balance_record( escrow_condition.sender,
asset( amount_to_sender, escrow_balance_record->asset_id() ),
escrow_balance_record->slate_id() );
auto current_sender_balance = eval_state._current_state->get_balance_record( new_balance_record.id());
if( current_sender_balance )
current_sender_balance->balance += amount_to_sender;
else
current_sender_balance = new_balance_record;
eval_state._current_state->store_balance_record( *current_sender_balance );
}
}
else if( address() == this->released_by )
{
if( !eval_state.check_signature( escrow_condition.sender ) )
FC_CAPTURE_AND_THROW( missing_signature, (escrow_condition.sender) );
if( !eval_state.check_signature( escrow_condition.receiver ) )
FC_CAPTURE_AND_THROW( missing_signature, (escrow_condition.receiver) );
// get a balance record for the receiver, create it if necessary and deposit funds
{
balance_record new_balance_record( escrow_condition.receiver,
asset( amount_to_receiver, escrow_balance_record->asset_id() ),
escrow_balance_record->slate_id() );
auto current_receiver_balance = eval_state._current_state->get_balance_record( new_balance_record.id());
if( current_receiver_balance )
current_receiver_balance->balance += amount_to_receiver;
else
current_receiver_balance = new_balance_record;
eval_state._current_state->store_balance_record( *current_receiver_balance );
}
// get a balance record for the sender, create it if necessary and deposit funds
{
balance_record new_balance_record( escrow_condition.sender,
asset( amount_to_sender, escrow_balance_record->asset_id() ),
escrow_balance_record->slate_id() );
auto current_sender_balance = eval_state._current_state->get_balance_record( new_balance_record.id());
if( current_sender_balance )
current_sender_balance->balance += amount_to_sender;
else
current_sender_balance = new_balance_record;
eval_state._current_state->store_balance_record( *current_sender_balance );
}
}
else
{
FC_ASSERT( !"not released by a party to the escrow transaction" );
}
eval_state._current_state->store_balance_record( *escrow_balance_record );
} FC_CAPTURE_AND_RETHROW( (*this) ) }