/
genesis.go
260 lines (205 loc) · 7.92 KB
/
genesis.go
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package types
import (
"bytes"
"encoding/hex"
"encoding/json"
"fmt"
"sort"
"strconv"
"strings"
"github.com/cosmos/cosmos-sdk/codec"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/axelarnetwork/axelar-core/utils"
)
// NewGenesisState returns a new genesis state
func NewGenesisState(chains []GenesisState_Chain) GenesisState {
sort.Slice(chains, less(chains))
for _, chain := range chains {
sort.SliceStable(chain.Events, func(i, j int) bool {
return chain.Events[i].Index < chain.Events[j].Index
})
}
return GenesisState{Chains: chains}
}
func less(chains []GenesisState_Chain) func(i int, j int) bool {
return func(i, j int) bool {
return chains[i].Params.Chain.String() < chains[j].Params.Chain.String()
}
}
// DefaultGenesisState returns a default genesis state
func DefaultGenesisState() GenesisState {
return NewGenesisState(DefaultChains())
}
// DefaultChains returns the default chains for a genesis state
func DefaultChains() []GenesisState_Chain {
var chains []GenesisState_Chain
for _, params := range DefaultParams() {
chain := GenesisState_Chain{
Params: params,
BurnerInfos: nil,
CommandQueue: utils.QueueState{},
LegacyConfirmedDeposits: nil,
LegacyBurnedDeposits: nil,
ConfirmedDeposits: nil,
BurnedDeposits: nil,
CommandBatches: nil,
Gateway: Gateway{},
Tokens: nil,
Events: nil,
ConfirmedEventQueue: utils.QueueState{},
}
chains = append(chains, chain)
}
return chains
}
// Validate validates the genesis state
func (m GenesisState) Validate() error {
if !sort.SliceIsSorted(m.Chains, less(m.Chains)) {
return getValidateError(0, fmt.Errorf("chains must be sorted by name (in params)"))
}
// events should be globally unique across all the chains
eventSeen := make(map[string]bool)
for j, chain := range m.Chains {
if err := chain.Params.Validate(); err != nil {
return getValidateError(j, sdkerrors.Wrapf(err, "invalid params"))
}
if chain.Gateway.Address.IsZeroAddress() {
errStr := "gateway is not set"
if len(chain.Tokens) > 0 {
return getValidateError(j, sdkerrors.Wrap(fmt.Errorf("cannot initialize tokens"), errStr))
}
if len(chain.ConfirmedDeposits) > 0 {
return getValidateError(j, sdkerrors.Wrap(fmt.Errorf("cannot have confirmed deposits"), errStr))
}
if len(chain.BurnedDeposits) > 0 {
return getValidateError(j, sdkerrors.Wrap(fmt.Errorf("cannot have burned deposits"), errStr))
}
if len(chain.BurnerInfos) > 0 {
return getValidateError(j, sdkerrors.Wrap(fmt.Errorf("cannot have burned deposits"), errStr))
}
}
for i, token := range chain.Tokens {
if err := token.ValidateBasic(); err != nil {
return getValidateError(j, sdkerrors.Wrapf(err, "invalid token %d", i))
}
}
for i, info := range chain.BurnerInfos {
if err := info.ValidateBasic(); err != nil {
return getValidateError(j, sdkerrors.Wrapf(err, "invalid burner info %d", i))
}
if err := checkTokenInfo(info, chain.Tokens); err != nil {
return getValidateError(j, sdkerrors.Wrapf(err, "invalid burner info %d", i))
}
}
for i, deposit := range append(chain.ConfirmedDeposits, chain.LegacyConfirmedDeposits...) {
if err := deposit.ValidateBasic(); err != nil {
return getValidateError(j, sdkerrors.Wrapf(err, "invalid confirmed deposit %d", i))
}
if err := checkBurnerInfo(deposit, chain.BurnerInfos); err != nil {
return getValidateError(j, sdkerrors.Wrapf(err, "invalid confirmed deposit %d", i))
}
}
for i, deposit := range append(chain.BurnedDeposits, chain.LegacyBurnedDeposits...) {
if err := deposit.ValidateBasic(); err != nil {
return getValidateError(j, sdkerrors.Wrapf(err, "invalid burned deposit %d", i))
}
if err := checkBurnerInfo(deposit, chain.BurnerInfos); err != nil {
return getValidateError(j, sdkerrors.Wrapf(err, "invalid burned deposit %d", i))
}
}
if err := validateCommandBatches(chain.CommandBatches); err != nil {
return getValidateError(j, sdkerrors.Wrapf(err, "invalid command batches"))
}
if err := validateCommandBatches(chain.CommandBatches); err != nil {
return getValidateError(j, sdkerrors.Wrapf(err, "invalid command batches"))
}
if err := chain.CommandQueue.ValidateBasic(); err != nil {
return getValidateError(j, sdkerrors.Wrapf(err, "invalid command queue state"))
}
for _, event := range chain.Events {
if eventSeen[string(event.GetID())] {
return getValidateError(j, fmt.Errorf("duplicate event %s", event.GetID()))
}
if event.Status == EventNonExistent {
return getValidateError(j, fmt.Errorf("invalid status of event %s", event.GetID()))
}
if err := event.ValidateBasic(); err != nil {
return getValidateError(j, sdkerrors.Wrapf(err, "invalid event %s", event.GetID()))
}
eventSeen[string(event.GetID())] = true
}
if err := chain.ConfirmedEventQueue.ValidateBasic(); err != nil {
return getValidateError(j, sdkerrors.Wrapf(err, "invalid confirmed event queue state"))
}
}
return nil
}
func validateCommandBatches(batches []CommandBatchMetadata) error {
var batchesWithoutPreviousBatch []string
var batchesWithoutCompleteSign []string
for i, batch := range batches {
if batch.Status == BatchNonExistent {
return fmt.Errorf("status of command batch %d not set", i)
}
if batch.Status != BatchSigned {
batchesWithoutCompleteSign = append(batchesWithoutCompleteSign, strconv.Itoa(i))
}
if batch.ID == nil {
return fmt.Errorf("ID of command batch %d not set", i)
}
if batch.PrevBatchedCommandsID == nil {
batchesWithoutPreviousBatch = append(batchesWithoutPreviousBatch, strconv.Itoa(i))
}
if i > 0 && !bytes.Equal(batches[i-1].ID, batch.PrevBatchedCommandsID) {
return fmt.Errorf("previous batch ID mismatch at index %d (want '%s', got '%s')",
i, hex.EncodeToString(batches[i-1].ID), hex.EncodeToString(batch.PrevBatchedCommandsID))
}
}
if len(batchesWithoutCompleteSign) > 1 {
return fmt.Errorf("multiple uncompleted command batches: %s", strings.Join(batchesWithoutCompleteSign, ", "))
}
if len(batchesWithoutPreviousBatch) > 1 {
return fmt.Errorf("multiple command batches without previous batch ID: %s", strings.Join(batchesWithoutPreviousBatch, ", "))
}
return nil
}
func checkBurnerInfo(deposit ERC20Deposit, burnerInfos []BurnerInfo) error {
for _, info := range burnerInfos {
if bytes.Equal(deposit.BurnerAddress.Bytes(), info.BurnerAddress.Bytes()) {
if info.Asset != deposit.Asset {
return fmt.Errorf("expected asset %s, got %s", info.Asset, deposit.Asset)
}
if info.DestinationChain != deposit.DestinationChain {
return fmt.Errorf("expected destination address %s, got %s", info.DestinationChain, deposit.DestinationChain)
}
return nil
}
}
return fmt.Errorf("burner info for address %s not found", deposit.BurnerAddress.Hex())
}
func checkTokenInfo(info BurnerInfo, tokens []ERC20TokenMetadata) error {
for _, token := range tokens {
if bytes.Equal(info.TokenAddress.Bytes(), token.TokenAddress.Bytes()) {
if token.Asset != info.Asset {
return fmt.Errorf("expected asset %s, got %s", token.Asset, info.Asset)
}
if token.Details.Symbol != info.Symbol {
return fmt.Errorf("expected symbol %s, got %s", token.Details.Symbol, info.Symbol)
}
return nil
}
}
return fmt.Errorf("token with address %s not found", info.TokenAddress.Hex())
}
// GetGenesisStateFromAppState returns x/evm GenesisState given raw application
// genesis state.
func GetGenesisStateFromAppState(cdc codec.JSONCodec, appState map[string]json.RawMessage) GenesisState {
var genesisState GenesisState
if appState[ModuleName] != nil {
cdc.MustUnmarshalJSON(appState[ModuleName], &genesisState)
}
return genesisState
}
func getValidateError(chainIdx int, err error) error {
return sdkerrors.Wrapf(sdkerrors.Wrapf(err, "invalid chain %d", chainIdx), "genesis state for module %s is invalid", ModuleName)
}