0g-chain/app/genesis.go

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2019-06-20 13:37:57 +00:00
package app
import (
"encoding/json"
"errors"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"sort"
"strings"
"time"
tmtypes "github.com/tendermint/tendermint/types"
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/x/auth"
"github.com/cosmos/cosmos-sdk/x/bank"
"github.com/cosmos/cosmos-sdk/x/crisis"
distr "github.com/cosmos/cosmos-sdk/x/distribution"
"github.com/cosmos/cosmos-sdk/x/gov"
"github.com/cosmos/cosmos-sdk/x/mint"
"github.com/cosmos/cosmos-sdk/x/slashing"
"github.com/cosmos/cosmos-sdk/x/staking"
)
var (
// bonded tokens given to genesis validators/accounts
freeTokensPerAcc = sdk.TokensFromTendermintPower(150)
defaultBondDenom = sdk.DefaultBondDenom
)
// State to Unmarshal
type GenesisState struct {
Accounts []GenesisAccount `json:"accounts"`
AuthData auth.GenesisState `json:"auth"`
BankData bank.GenesisState `json:"bank"`
StakingData staking.GenesisState `json:"staking"`
MintData mint.GenesisState `json:"mint"`
DistrData distr.GenesisState `json:"distr"`
GovData gov.GenesisState `json:"gov"`
CrisisData crisis.GenesisState `json:"crisis"`
SlashingData slashing.GenesisState `json:"slashing"`
GenTxs []json.RawMessage `json:"gentxs"`
}
func NewGenesisState(accounts []GenesisAccount, authData auth.GenesisState,
bankData bank.GenesisState,
stakingData staking.GenesisState, mintData mint.GenesisState,
distrData distr.GenesisState, govData gov.GenesisState, crisisData crisis.GenesisState,
slashingData slashing.GenesisState) GenesisState {
return GenesisState{
Accounts: accounts,
AuthData: authData,
BankData: bankData,
StakingData: stakingData,
MintData: mintData,
DistrData: distrData,
GovData: govData,
CrisisData: crisisData,
SlashingData: slashingData,
}
}
// Sanitize sorts accounts and coin sets.
func (gs GenesisState) Sanitize() {
sort.Slice(gs.Accounts, func(i, j int) bool {
return gs.Accounts[i].AccountNumber < gs.Accounts[j].AccountNumber
})
for _, acc := range gs.Accounts {
acc.Coins = acc.Coins.Sort()
}
}
// GenesisAccount defines an account initialized at genesis.
type GenesisAccount struct {
Address sdk.AccAddress `json:"address"`
Coins sdk.Coins `json:"coins"`
Sequence uint64 `json:"sequence_number"`
AccountNumber uint64 `json:"account_number"`
// vesting account fields
OriginalVesting sdk.Coins `json:"original_vesting"` // total vesting coins upon initialization
DelegatedFree sdk.Coins `json:"delegated_free"` // delegated vested coins at time of delegation
DelegatedVesting sdk.Coins `json:"delegated_vesting"` // delegated vesting coins at time of delegation
StartTime int64 `json:"start_time"` // vesting start time (UNIX Epoch time)
EndTime int64 `json:"end_time"` // vesting end time (UNIX Epoch time)
}
func NewGenesisAccount(acc *auth.BaseAccount) GenesisAccount {
return GenesisAccount{
Address: acc.Address,
Coins: acc.Coins,
AccountNumber: acc.AccountNumber,
Sequence: acc.Sequence,
}
}
func NewGenesisAccountI(acc auth.Account) GenesisAccount {
gacc := GenesisAccount{
Address: acc.GetAddress(),
Coins: acc.GetCoins(),
AccountNumber: acc.GetAccountNumber(),
Sequence: acc.GetSequence(),
}
vacc, ok := acc.(auth.VestingAccount)
if ok {
gacc.OriginalVesting = vacc.GetOriginalVesting()
gacc.DelegatedFree = vacc.GetDelegatedFree()
gacc.DelegatedVesting = vacc.GetDelegatedVesting()
gacc.StartTime = vacc.GetStartTime()
gacc.EndTime = vacc.GetEndTime()
}
return gacc
}
// convert GenesisAccount to auth.BaseAccount
func (ga *GenesisAccount) ToAccount() auth.Account {
bacc := &auth.BaseAccount{
Address: ga.Address,
Coins: ga.Coins.Sort(),
AccountNumber: ga.AccountNumber,
Sequence: ga.Sequence,
}
if !ga.OriginalVesting.IsZero() {
baseVestingAcc := &auth.BaseVestingAccount{
BaseAccount: bacc,
OriginalVesting: ga.OriginalVesting,
DelegatedFree: ga.DelegatedFree,
DelegatedVesting: ga.DelegatedVesting,
EndTime: ga.EndTime,
}
if ga.StartTime != 0 && ga.EndTime != 0 {
return &auth.ContinuousVestingAccount{
BaseVestingAccount: baseVestingAcc,
StartTime: ga.StartTime,
}
} else if ga.EndTime != 0 {
return &auth.DelayedVestingAccount{
BaseVestingAccount: baseVestingAcc,
}
} else {
panic(fmt.Sprintf("invalid genesis vesting account: %+v", ga))
}
}
return bacc
}
// Create the core parameters for genesis initialization for gaia
// note that the pubkey input is this machines pubkey
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func AppGenState(cdc *codec.Codec, genDoc tmtypes.GenesisDoc, appGenTxs []json.RawMessage) (
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genesisState GenesisState, err error) {
if err = cdc.UnmarshalJSON(genDoc.AppState, &genesisState); err != nil {
return genesisState, err
}
// if there are no gen txs to be processed, return the default empty state
if len(appGenTxs) == 0 {
return genesisState, errors.New("there must be at least one genesis tx")
}
stakingData := genesisState.StakingData
for i, genTx := range appGenTxs {
var tx auth.StdTx
if err := cdc.UnmarshalJSON(genTx, &tx); err != nil {
return genesisState, err
}
msgs := tx.GetMsgs()
if len(msgs) != 1 {
return genesisState, errors.New(
"must provide genesis StdTx with exactly 1 CreateValidator message")
}
if _, ok := msgs[0].(staking.MsgCreateValidator); !ok {
return genesisState, fmt.Errorf(
"Genesis transaction %v does not contain a MsgCreateValidator", i)
}
}
for _, acc := range genesisState.Accounts {
for _, coin := range acc.Coins {
if coin.Denom == genesisState.StakingData.Params.BondDenom {
stakingData.Pool.NotBondedTokens = stakingData.Pool.NotBondedTokens.
Add(coin.Amount) // increase the supply
}
}
}
genesisState.StakingData = stakingData
genesisState.GenTxs = appGenTxs
return genesisState, nil
}
// NewDefaultGenesisState generates the default state for gaia.
func NewDefaultGenesisState() GenesisState {
return GenesisState{
Accounts: nil,
AuthData: auth.DefaultGenesisState(),
BankData: bank.DefaultGenesisState(),
StakingData: staking.DefaultGenesisState(),
MintData: mint.DefaultGenesisState(),
DistrData: distr.DefaultGenesisState(),
GovData: gov.DefaultGenesisState(),
CrisisData: crisis.DefaultGenesisState(),
SlashingData: slashing.DefaultGenesisState(),
GenTxs: nil,
}
}
// GaiaValidateGenesisState ensures that the genesis state obeys the expected invariants
// TODO: No validators are both bonded and jailed (#2088)
// TODO: Error if there is a duplicate validator (#1708)
// TODO: Ensure all state machine parameters are in genesis (#1704)
func GaiaValidateGenesisState(genesisState GenesisState) error {
if err := validateGenesisStateAccounts(genesisState.Accounts); err != nil {
return err
}
// skip stakingData validation as genesis is created from txs
if len(genesisState.GenTxs) > 0 {
return nil
}
if err := auth.ValidateGenesis(genesisState.AuthData); err != nil {
return err
}
if err := bank.ValidateGenesis(genesisState.BankData); err != nil {
return err
}
if err := staking.ValidateGenesis(genesisState.StakingData); err != nil {
return err
}
if err := mint.ValidateGenesis(genesisState.MintData); err != nil {
return err
}
if err := distr.ValidateGenesis(genesisState.DistrData); err != nil {
return err
}
if err := gov.ValidateGenesis(genesisState.GovData); err != nil {
return err
}
if err := crisis.ValidateGenesis(genesisState.CrisisData); err != nil {
return err
}
return slashing.ValidateGenesis(genesisState.SlashingData)
}
// validateGenesisStateAccounts performs validation of genesis accounts. It
// ensures that there are no duplicate accounts in the genesis state and any
// provided vesting accounts are valid.
func validateGenesisStateAccounts(accs []GenesisAccount) error {
addrMap := make(map[string]bool, len(accs))
for _, acc := range accs {
addrStr := acc.Address.String()
// disallow any duplicate accounts
if _, ok := addrMap[addrStr]; ok {
return fmt.Errorf("duplicate account found in genesis state; address: %s", addrStr)
}
// validate any vesting fields
if !acc.OriginalVesting.IsZero() {
if acc.EndTime == 0 {
return fmt.Errorf("missing end time for vesting account; address: %s", addrStr)
}
if acc.StartTime >= acc.EndTime {
return fmt.Errorf(
"vesting start time must before end time; address: %s, start: %s, end: %s",
addrStr,
time.Unix(acc.StartTime, 0).UTC().Format(time.RFC3339),
time.Unix(acc.EndTime, 0).UTC().Format(time.RFC3339),
)
}
}
addrMap[addrStr] = true
}
return nil
}
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// AppGenState but with JSON
func AppGenStateJSON(cdc *codec.Codec, genDoc tmtypes.GenesisDoc, appGenTxs []json.RawMessage) (
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appState json.RawMessage, err error) {
// create the final app state
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genesisState, err := AppGenState(cdc, genDoc, appGenTxs)
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if err != nil {
return nil, err
}
return codec.MarshalJSONIndent(cdc, genesisState)
}
// CollectStdTxs processes and validates application's genesis StdTxs and returns
// the list of appGenTxs, and persistent peers required to generate genesis.json.
func CollectStdTxs(cdc *codec.Codec, moniker string, genTxsDir string, genDoc tmtypes.GenesisDoc) (
appGenTxs []auth.StdTx, persistentPeers string, err error) {
var fos []os.FileInfo
fos, err = ioutil.ReadDir(genTxsDir)
if err != nil {
return appGenTxs, persistentPeers, err
}
// prepare a map of all accounts in genesis state to then validate
// against the validators addresses
var appState GenesisState
if err := cdc.UnmarshalJSON(genDoc.AppState, &appState); err != nil {
return appGenTxs, persistentPeers, err
}
addrMap := make(map[string]GenesisAccount, len(appState.Accounts))
for i := 0; i < len(appState.Accounts); i++ {
acc := appState.Accounts[i]
addrMap[acc.Address.String()] = acc
}
// addresses and IPs (and port) validator server info
var addressesIPs []string
for _, fo := range fos {
filename := filepath.Join(genTxsDir, fo.Name())
if !fo.IsDir() && (filepath.Ext(filename) != ".json") {
continue
}
// get the genStdTx
var jsonRawTx []byte
if jsonRawTx, err = ioutil.ReadFile(filename); err != nil {
return appGenTxs, persistentPeers, err
}
var genStdTx auth.StdTx
if err = cdc.UnmarshalJSON(jsonRawTx, &genStdTx); err != nil {
return appGenTxs, persistentPeers, err
}
appGenTxs = append(appGenTxs, genStdTx)
// the memo flag is used to store
// the ip and node-id, for example this may be:
// "528fd3df22b31f4969b05652bfe8f0fe921321d5@192.168.2.37:26656"
nodeAddrIP := genStdTx.GetMemo()
if len(nodeAddrIP) == 0 {
return appGenTxs, persistentPeers, fmt.Errorf(
"couldn't find node's address and IP in %s", fo.Name())
}
// genesis transactions must be single-message
msgs := genStdTx.GetMsgs()
if len(msgs) != 1 {
return appGenTxs, persistentPeers, errors.New(
"each genesis transaction must provide a single genesis message")
}
msg := msgs[0].(staking.MsgCreateValidator)
// validate delegator and validator addresses and funds against the accounts in the state
delAddr := msg.DelegatorAddress.String()
valAddr := sdk.AccAddress(msg.ValidatorAddress).String()
delAcc, delOk := addrMap[delAddr]
_, valOk := addrMap[valAddr]
accsNotInGenesis := []string{}
if !delOk {
accsNotInGenesis = append(accsNotInGenesis, delAddr)
}
if !valOk {
accsNotInGenesis = append(accsNotInGenesis, valAddr)
}
if len(accsNotInGenesis) != 0 {
return appGenTxs, persistentPeers, fmt.Errorf(
"account(s) %v not in genesis.json: %+v", strings.Join(accsNotInGenesis, " "), addrMap)
}
if delAcc.Coins.AmountOf(msg.Value.Denom).LT(msg.Value.Amount) {
return appGenTxs, persistentPeers, fmt.Errorf(
"insufficient fund for delegation %v: %v < %v",
delAcc.Address, delAcc.Coins.AmountOf(msg.Value.Denom), msg.Value.Amount,
)
}
// exclude itself from persistent peers
if msg.Description.Moniker != moniker {
addressesIPs = append(addressesIPs, nodeAddrIP)
}
}
sort.Strings(addressesIPs)
persistentPeers = strings.Join(addressesIPs, ",")
return appGenTxs, persistentPeers, nil
}
func NewDefaultGenesisAccount(addr sdk.AccAddress) GenesisAccount {
accAuth := auth.NewBaseAccountWithAddress(addr)
coins := sdk.Coins{
sdk.NewCoin("footoken", sdk.NewInt(1000)),
sdk.NewCoin(defaultBondDenom, freeTokensPerAcc),
}
coins.Sort()
accAuth.Coins = coins
return NewGenesisAccount(&accAuth)
}