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gov_contract.go
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gov_contract.go
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// Copyright 2018-2019 The PlatON Network Authors
// This file is part of the PlatON-Go library.
//
// The PlatON-Go library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The PlatON-Go library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the PlatON-Go library. If not, see <http://www.gnu.org/licenses/>.
package vm
import (
"math/big"
"github.com/PlatONnetwork/PlatON-Go/x/xutil"
"github.com/PlatONnetwork/PlatON-Go/common"
"github.com/PlatONnetwork/PlatON-Go/common/vm"
"github.com/PlatONnetwork/PlatON-Go/log"
"github.com/PlatONnetwork/PlatON-Go/p2p/discover"
"github.com/PlatONnetwork/PlatON-Go/params"
"github.com/PlatONnetwork/PlatON-Go/x/gov"
"github.com/PlatONnetwork/PlatON-Go/x/plugin"
)
const (
SubmitText = uint16(2000)
SubmitVersion = uint16(2001)
SubmitParam = uint16(2002)
Vote = uint16(2003)
Declare = uint16(2004)
SubmitCancel = uint16(2005)
GetProposal = uint16(2100)
GetResult = uint16(2101)
ListProposal = uint16(2102)
GetActiveVersion = uint16(2103)
GetGovernParamValue = uint16(2104)
GetAccuVerifiersCount = uint16(2105)
ListGovernParam = uint16(2106)
)
var (
Delimiter = []byte("")
)
type GovContract struct {
Plugin *plugin.GovPlugin
Contract *Contract
Evm *EVM
}
func (gc *GovContract) RequiredGas(input []byte) uint64 {
return params.GovGas
}
func (gc *GovContract) Run(input []byte) ([]byte, error) {
return execPlatonContract(input, gc.FnSigns())
}
func (gc *GovContract) FnSigns() map[uint16]interface{} {
return map[uint16]interface{}{
// Set
SubmitText: gc.submitText,
SubmitVersion: gc.submitVersion,
Vote: gc.vote,
Declare: gc.declareVersion,
SubmitCancel: gc.submitCancel,
SubmitParam: gc.submitParam,
// Get
GetProposal: gc.getProposal,
GetResult: gc.getTallyResult,
ListProposal: gc.listProposal,
GetActiveVersion: gc.getActiveVersion,
GetGovernParamValue: gc.getGovernParamValue,
GetAccuVerifiersCount: gc.getAccuVerifiersCount,
ListGovernParam: gc.listGovernParam,
}
}
func (gc *GovContract) CheckGasPrice(gasPrice *big.Int, fcode uint16) error {
switch fcode {
case SubmitText:
if gasPrice.Cmp(params.SubmitTextProposalGasPrice) < 0 {
return common.InvalidParameter.Wrap("Gas price under the min gas price.")
}
case SubmitVersion:
if gasPrice.Cmp(params.SubmitVersionProposalGasPrice) < 0 {
return common.InvalidParameter.Wrap("Gas price under the min gas price.")
}
case SubmitCancel:
if gasPrice.Cmp(params.SubmitCancelProposalGasPrice) < 0 {
return common.InvalidParameter.Wrap("Gas price under the min gas price.")
}
case SubmitParam:
if gasPrice.Cmp(params.SubmitParamProposalGasPrice) < 0 {
return common.InvalidParameter.Wrap("Gas price under the min gas price.")
}
}
return nil
}
func (gc *GovContract) submitText(verifier discover.NodeID, pipID string) ([]byte, error) {
from := gc.Contract.CallerAddress
blockNumber := gc.Evm.BlockNumber.Uint64()
blockHash := gc.Evm.BlockHash
txHash := gc.Evm.StateDB.TxHash()
log.Debug("call submitText of GovContract",
"from", from.Hex(),
"txHash", txHash,
"blockNumber", blockNumber,
"PIPID", pipID,
"verifierID", verifier.TerminalString())
if !gc.Contract.UseGas(params.SubmitTextProposalGas) {
return nil, ErrOutOfGas
}
if txHash == common.ZeroHash {
return nil, nil
}
p := &gov.TextProposal{
PIPID: pipID,
ProposalType: gov.Text,
SubmitBlock: blockNumber,
ProposalID: txHash,
Proposer: verifier,
}
err := gov.Submit(from, p, blockHash, blockNumber, plugin.StakingInstance(), gc.Evm.StateDB)
return gc.nonCallHandler("submitText", SubmitText, err)
}
func (gc *GovContract) submitVersion(verifier discover.NodeID, pipID string, newVersion uint32, endVotingRounds uint64) ([]byte, error) {
from := gc.Contract.CallerAddress
blockNumber := gc.Evm.BlockNumber.Uint64()
blockHash := gc.Evm.BlockHash
txHash := gc.Evm.StateDB.TxHash()
log.Debug("call submitVersion of GovContract",
"from", from.Hex(),
"txHash", txHash,
"blockNumber", blockNumber,
"PIPID", pipID,
"verifierID", verifier.TerminalString(),
"newVersion", newVersion,
"newVersionString", xutil.ProgramVersion2Str(newVersion),
"endVotingRounds", endVotingRounds)
if !gc.Contract.UseGas(params.SubmitVersionProposalGas) {
return nil, ErrOutOfGas
}
if txHash == common.ZeroHash {
return nil, nil
}
p := &gov.VersionProposal{
PIPID: pipID,
ProposalType: gov.Version,
EndVotingRounds: endVotingRounds,
SubmitBlock: blockNumber,
ProposalID: txHash,
Proposer: verifier,
NewVersion: newVersion,
}
err := gov.Submit(from, p, blockHash, blockNumber, plugin.StakingInstance(), gc.Evm.StateDB)
return gc.nonCallHandler("submitVersion", SubmitVersion, err)
}
func (gc *GovContract) submitCancel(verifier discover.NodeID, pipID string, endVotingRounds uint64, tobeCanceledProposalID common.Hash) ([]byte, error) {
from := gc.Contract.CallerAddress
blockNumber := gc.Evm.BlockNumber.Uint64()
blockHash := gc.Evm.BlockHash
txHash := gc.Evm.StateDB.TxHash()
log.Debug("call submitCancel of GovContract",
"from", from.Hex(),
"txHash", txHash,
"blockNumber", blockNumber,
"PIPID", pipID,
"verifierID", verifier.TerminalString(),
"endVotingRounds", endVotingRounds,
"tobeCanceled", tobeCanceledProposalID)
if !gc.Contract.UseGas(params.SubmitCancelProposalGas) {
return nil, ErrOutOfGas
}
if txHash == common.ZeroHash {
return nil, nil
}
p := &gov.CancelProposal{
PIPID: pipID,
EndVotingRounds: endVotingRounds,
ProposalType: gov.Cancel,
SubmitBlock: blockNumber,
ProposalID: txHash,
Proposer: verifier,
TobeCanceled: tobeCanceledProposalID,
}
err := gov.Submit(from, p, blockHash, blockNumber, plugin.StakingInstance(), gc.Evm.StateDB)
return gc.nonCallHandler("submitCancel", SubmitCancel, err)
}
func (gc *GovContract) submitParam(verifier discover.NodeID, pipID string, module, name, newValue string) ([]byte, error) {
from := gc.Contract.CallerAddress
blockNumber := gc.Evm.BlockNumber.Uint64()
blockHash := gc.Evm.BlockHash
txHash := gc.Evm.StateDB.TxHash()
log.Debug("call submitParam of GovContract",
"from", from.Hex(),
"txHash", txHash,
"blockNumber", blockNumber,
"PIPID", pipID,
"verifierID", verifier.TerminalString(),
"module", module,
"name", name,
"newValue", newValue)
if !gc.Contract.UseGas(params.SubmitParamProposalGas) {
return nil, ErrOutOfGas
}
if txHash == common.ZeroHash {
return nil, nil
}
p := &gov.ParamProposal{
PIPID: pipID,
ProposalType: gov.Param,
SubmitBlock: blockNumber,
ProposalID: txHash,
Proposer: verifier,
Module: module,
Name: name,
NewValue: newValue,
}
err := gov.Submit(from, p, blockHash, blockNumber, plugin.StakingInstance(), gc.Evm.StateDB)
return gc.nonCallHandler("submitParam", SubmitParam, err)
}
func (gc *GovContract) vote(verifier discover.NodeID, proposalID common.Hash, op uint8, programVersion uint32, programVersionSign common.VersionSign) ([]byte, error) {
from := gc.Contract.CallerAddress
blockNumber := gc.Evm.BlockNumber.Uint64()
blockHash := gc.Evm.BlockHash
txHash := gc.Evm.StateDB.TxHash()
log.Debug("call vote of GovContract",
"from", from.Hex(),
"txHash", txHash,
"blockNumber", blockNumber,
"verifierID", verifier.TerminalString(),
"option", op,
"programVersion", programVersion,
"programVersionString", xutil.ProgramVersion2Str(programVersion),
"programVersionSign", programVersionSign)
if !gc.Contract.UseGas(params.VoteGas) {
return nil, ErrOutOfGas
}
if txHash == common.ZeroHash {
return nil, nil
}
option := gov.ParseVoteOption(op)
v := gov.VoteInfo{}
v.ProposalID = proposalID
v.VoteNodeID = verifier
v.VoteOption = option
err := gov.Vote(from, v, blockHash, blockNumber, programVersion, programVersionSign, plugin.StakingInstance(), gc.Evm.StateDB)
return gc.nonCallHandler("vote", Vote, err)
}
func (gc *GovContract) declareVersion(activeNode discover.NodeID, programVersion uint32, programVersionSign common.VersionSign) ([]byte, error) {
from := gc.Contract.CallerAddress
blockNumber := gc.Evm.BlockNumber.Uint64()
blockHash := gc.Evm.BlockHash
txHash := gc.Evm.StateDB.TxHash()
log.Debug("call declareVersion of GovContract",
"from", from.Hex(),
"txHash", txHash,
"blockNumber", blockNumber,
"activeNode", activeNode.TerminalString(),
"programVersion", programVersion,
"programVersionString", xutil.ProgramVersion2Str(programVersion))
if !gc.Contract.UseGas(params.DeclareVersionGas) {
return nil, ErrOutOfGas
}
if txHash == common.ZeroHash {
return nil, nil
}
err := gov.DeclareVersion(from, activeNode, programVersion, programVersionSign, blockHash, blockNumber, plugin.StakingInstance(), gc.Evm.StateDB)
return gc.nonCallHandler("declareVersion", Declare, err)
}
func (gc *GovContract) getProposal(proposalID common.Hash) ([]byte, error) {
from := gc.Contract.CallerAddress
blockNumber := gc.Evm.BlockNumber.Uint64()
//blockHash := gc.Evm.BlockHash
txHash := gc.Evm.StateDB.TxHash()
log.Debug("call getProposal of GovContract",
"from", from.Hex(),
"txHash", txHash,
"blockNumber", blockNumber,
"proposalID", proposalID)
proposal, err := gov.GetExistProposal(proposalID, gc.Evm.StateDB)
return gc.callHandler("getProposal", proposal, err)
}
func (gc *GovContract) getTallyResult(proposalID common.Hash) ([]byte, error) {
from := gc.Contract.CallerAddress
blockNumber := gc.Evm.BlockNumber.Uint64()
//blockHash := gc.Evm.BlockHash
txHash := gc.Evm.StateDB.TxHash()
log.Debug("call getTallyResult of GovContract",
"from", from.Hex(),
"txHash", txHash,
"blockNumber", blockNumber,
"proposalID", proposalID)
tallyResult, err := gov.GetTallyResult(proposalID, gc.Evm.StateDB)
if tallyResult == nil {
err = gov.TallyResultNotFound
}
return gc.callHandler("getTallyResult", tallyResult, err)
}
func (gc *GovContract) listProposal() ([]byte, error) {
from := gc.Contract.CallerAddress
blockNumber := gc.Evm.BlockNumber.Uint64()
//blockHash := gc.Evm.BlockHash
txHash := gc.Evm.StateDB.TxHash()
log.Debug("call listProposal of GovContract",
"from", from.Hex(),
"txHash", txHash,
"blockNumber", blockNumber)
proposalList, err := gov.ListProposal(gc.Evm.BlockHash, gc.Evm.StateDB)
return gc.callHandler("listProposal", proposalList, err)
}
func (gc *GovContract) getActiveVersion() ([]byte, error) {
from := gc.Contract.CallerAddress
blockNumber := gc.Evm.BlockNumber.Uint64()
//blockHash := gc.Evm.BlockHash
txHash := gc.Evm.StateDB.TxHash()
log.Debug("call getActiveVersion of GovContract",
"from", from.Hex(),
"txHash", txHash,
"blockNumber", blockNumber)
activeVersion := gov.GetCurrentActiveVersion(gc.Evm.StateDB)
return gc.callHandler("getActiveVersion", activeVersion, nil)
}
func (gc *GovContract) getAccuVerifiersCount(proposalID, blockHash common.Hash) ([]byte, error) {
from := gc.Contract.CallerAddress
blockNumber := gc.Evm.BlockNumber.Uint64()
//blockHash := gc.Evm.BlockHash
txHash := gc.Evm.StateDB.TxHash()
log.Debug("call getAccuVerifiesCount of GovContract",
"from", from.Hex(),
"txHash", txHash,
"blockNumber", blockNumber,
"blockHash", blockHash,
"proposalID", proposalID)
proposal, err := gov.GetProposal(proposalID, gc.Evm.StateDB)
if err != nil {
return gc.callHandler("getAccuVerifiesCount", nil, common.InternalError.Wrap(err.Error()))
} else if proposal == nil {
return gc.callHandler("getAccuVerifiesCount", nil, gov.ProposalNotFound)
}
list, err := gov.ListAccuVerifier(blockHash, proposalID)
if err != nil {
return gc.callHandler("getAccuVerifiesCount", nil, common.InternalError.Wrap(err.Error()))
}
yeas, nays, abstentions, err := gov.TallyVoteValue(proposalID, blockHash)
if err != nil {
return gc.callHandler("getAccuVerifiesCount", nil, common.InternalError.Wrap(err.Error()))
}
returnValue := []uint16{uint16(len(list)), yeas, nays, abstentions}
return gc.callHandler("getAccuVerifiesCount", returnValue, nil)
}
// getGovernParamValue returns the govern parameter's value in current block.
func (gc *GovContract) getGovernParamValue(module, name string) ([]byte, error) {
from := gc.Contract.CallerAddress
blockNumber := gc.Evm.BlockNumber.Uint64()
blockHash := gc.Evm.BlockHash
txHash := gc.Evm.StateDB.TxHash()
log.Debug("call getGovernParamValue of GovContract",
"from", from.Hex(),
"txHash", txHash,
"module", module,
"name", name,
"blockNumber", blockNumber)
value, err := gov.GetGovernParamValue(module, name, blockNumber, blockHash)
return gc.callHandler("getGovernParamValue", value, err)
}
// listGovernParam returns the module's govern parameters; if module is empty, return all govern parameters
func (gc *GovContract) listGovernParam(module string) ([]byte, error) {
from := gc.Contract.CallerAddress
blockNumber := gc.Evm.BlockNumber.Uint64()
blockHash := gc.Evm.BlockHash
txHash := gc.Evm.StateDB.TxHash()
log.Debug("call listGovernParam of GovContract",
"from", from.Hex(),
"txHash", txHash,
"module", module,
"blockNumber", blockNumber)
paramList, err := gov.ListGovernParam(module, blockHash)
return gc.callHandler("listGovernParam", paramList, err)
}
func (gc *GovContract) nonCallHandler(funcName string, fcode uint16, err error) ([]byte, error) {
if err != nil {
if bizErr, ok := err.(*common.BizError); ok {
return txResultHandler(vm.GovContractAddr, gc.Evm, funcName+" of GovContract",
bizErr.Error(), int(fcode), int(bizErr.Code)), nil
} else {
log.Error("Execute GovContract failed.(System error)", "method", funcName, "blockNumber", gc.Evm.BlockNumber.Uint64(),
"txHash", gc.Evm.StateDB.TxHash(), "err", err)
return nil, err
}
} else {
return txResultHandler(vm.GovContractAddr, gc.Evm, "", "", int(fcode), int(common.NoErr.Code)), nil
}
}
func (gc *GovContract) callHandler(funcName string, resultValue interface{}, err error) ([]byte, error) {
if err == nil {
return callResultHandler(gc.Evm, funcName+" of GovContract", resultValue, nil), nil
}
switch typed := err.(type) {
case *common.BizError:
return callResultHandler(gc.Evm, funcName+" of GovContract", resultValue, typed), nil
default:
return callResultHandler(gc.Evm, funcName+" of GovContract", resultValue, common.InternalError.Wrap(err.Error())), nil
}
}