724 lines
23 KiB
Go
724 lines
23 KiB
Go
package keeper
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"net/url"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/cosmos/cosmos-sdk/codec"
|
|
cryptotypes "github.com/cosmos/cosmos-sdk/crypto/types"
|
|
sdk "github.com/cosmos/cosmos-sdk/types"
|
|
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
|
|
auctiontypes "github.com/tharsis/ethermint/x/auction/types"
|
|
"github.com/tharsis/ethermint/x/nameservice/helpers"
|
|
"github.com/tharsis/ethermint/x/nameservice/types"
|
|
)
|
|
|
|
func getAuthorityPubKey(pubKey cryptotypes.PubKey) string {
|
|
if pubKey != nil {
|
|
return helpers.BytesToBase64(pubKey.Bytes())
|
|
}
|
|
return ""
|
|
}
|
|
|
|
// GetNameAuthorityIndexKey Generates name -> NameAuthority index key.
|
|
func GetNameAuthorityIndexKey(name string) []byte {
|
|
return append(PrefixNameAuthorityRecordIndex, []byte(name)...)
|
|
}
|
|
|
|
// GetNameRecordIndexKey Generates CRN -> NameRecord index key.
|
|
func GetNameRecordIndexKey(crn string) []byte {
|
|
return append(PrefixCRNToNameRecordIndex, []byte(crn)...)
|
|
}
|
|
|
|
func GetCIDToNamesIndexKey(id string) []byte {
|
|
return append(PrefixCIDToNamesIndex, []byte(id)...)
|
|
}
|
|
|
|
func SetNameAuthority(ctx sdk.Context, store sdk.KVStore, codec codec.BinaryCodec, name string, authority *types.NameAuthority) {
|
|
store.Set(GetNameAuthorityIndexKey(name), codec.MustMarshal(authority))
|
|
updateBlockChangeSetForNameAuthority(ctx, codec, store, name)
|
|
}
|
|
|
|
// SetNameAuthority creates the NameAuthority record.
|
|
func (k Keeper) SetNameAuthority(ctx sdk.Context, name string, authority *types.NameAuthority) {
|
|
SetNameAuthority(ctx, ctx.KVStore(k.storeKey), k.cdc, name, authority)
|
|
}
|
|
|
|
func removeAuctionToAuthorityMapping(store sdk.KVStore, auctionID string) {
|
|
store.Delete(GetAuctionToAuthorityIndexKey(auctionID))
|
|
}
|
|
|
|
func (k Keeper) RemoveAuctionToAuthorityMapping(ctx sdk.Context, auctionID string) {
|
|
removeAuctionToAuthorityMapping(ctx.KVStore(k.storeKey), auctionID)
|
|
}
|
|
|
|
// GetNameAuthority - gets a name authority from the store.
|
|
func GetNameAuthority(store sdk.KVStore, codec codec.BinaryCodec, name string) types.NameAuthority {
|
|
authorityKey := GetNameAuthorityIndexKey(name)
|
|
if !store.Has(authorityKey) {
|
|
return types.NameAuthority{}
|
|
}
|
|
|
|
bz := store.Get(authorityKey)
|
|
var obj types.NameAuthority
|
|
codec.MustUnmarshal(bz, &obj)
|
|
|
|
return obj
|
|
}
|
|
|
|
// GetNameAuthority - gets a name authority from the store.
|
|
func (k Keeper) GetNameAuthority(ctx sdk.Context, name string) types.NameAuthority {
|
|
return GetNameAuthority(ctx.KVStore(k.storeKey), k.cdc, name)
|
|
}
|
|
|
|
// HasNameAuthority - checks if a name authority entry exists.
|
|
func HasNameAuthority(store sdk.KVStore, name string) bool {
|
|
return store.Has(GetNameAuthorityIndexKey(name))
|
|
}
|
|
|
|
// HasNameAuthority - checks if a name/authority exists.
|
|
func (k Keeper) HasNameAuthority(ctx sdk.Context, name string) bool {
|
|
return HasNameAuthority(ctx.KVStore(k.storeKey), name)
|
|
}
|
|
|
|
func getBondIDToAuthoritiesIndexKey(bondID string, name string) []byte {
|
|
return append(append(PrefixBondIDToAuthoritiesIndex, []byte(bondID)...), []byte(name)...)
|
|
}
|
|
|
|
// AddBondToAuthorityIndexEntry adds the Bond ID -> [Authority] index entry.
|
|
func (k Keeper) AddBondToAuthorityIndexEntry(ctx sdk.Context, bondID string, name string) {
|
|
store := ctx.KVStore(k.storeKey)
|
|
store.Set(getBondIDToAuthoritiesIndexKey(bondID, name), []byte{})
|
|
}
|
|
|
|
// RemoveBondToAuthorityIndexEntry removes the Bond ID -> [Authority] index entry.
|
|
func (k Keeper) RemoveBondToAuthorityIndexEntry(ctx sdk.Context, bondID string, name string) {
|
|
RemoveBondToAuthorityIndexEntry(ctx.KVStore(k.storeKey), bondID, name)
|
|
}
|
|
|
|
func RemoveBondToAuthorityIndexEntry(store sdk.KVStore, bondID string, name string) {
|
|
store.Delete(getBondIDToAuthoritiesIndexKey(bondID, name))
|
|
}
|
|
|
|
func (k Keeper) updateBlockChangeSetForName(ctx sdk.Context, crn string) {
|
|
changeSet := k.getOrCreateBlockChangeSet(ctx, ctx.BlockHeight())
|
|
changeSet.Names = append(changeSet.Names, crn)
|
|
k.saveBlockChangeSet(ctx, changeSet)
|
|
}
|
|
|
|
func (k Keeper) getAuthority(ctx sdk.Context, crn string) (string, *url.URL, *types.NameAuthority, error) {
|
|
parsedCRN, err := url.Parse(crn)
|
|
if err != nil {
|
|
return "", nil, nil, sdkerrors.Wrap(sdkerrors.ErrInvalidRequest, "Invalid CRN.")
|
|
}
|
|
|
|
name := parsedCRN.Host
|
|
if !k.HasNameAuthority(ctx, name) {
|
|
return name, nil, nil, sdkerrors.Wrap(sdkerrors.ErrInvalidRequest, "Name authority not found.")
|
|
}
|
|
authority := k.GetNameAuthority(ctx, name)
|
|
return name, parsedCRN, &authority, nil
|
|
}
|
|
|
|
func (k Keeper) checkCRNAccess(ctx sdk.Context, signer sdk.AccAddress, crn string) error {
|
|
name, parsedCRN, authority, err := k.getAuthority(ctx, crn)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
formattedCRN := fmt.Sprintf("crn://%s%s", name, parsedCRN.RequestURI())
|
|
if formattedCRN != crn {
|
|
return sdkerrors.Wrap(sdkerrors.ErrInvalidRequest, "Invalid CRN.")
|
|
}
|
|
|
|
if authority.OwnerAddress != signer.String() {
|
|
return sdkerrors.Wrap(sdkerrors.ErrUnauthorized, "Access denied.")
|
|
}
|
|
|
|
if authority.Status != types.AuthorityActive {
|
|
return sdkerrors.Wrap(sdkerrors.ErrUnauthorized, "Authority is not active.")
|
|
}
|
|
|
|
if authority.BondId == "" || len(authority.BondId) == 0 {
|
|
return sdkerrors.Wrap(sdkerrors.ErrUnauthorized, "Authority bond not found.")
|
|
}
|
|
|
|
if authority.OwnerPublicKey == "" {
|
|
// Try to set owner public key if account has it available now.
|
|
ownerAccount := k.accountKeeper.GetAccount(ctx, signer)
|
|
pubKey := ownerAccount.GetPubKey()
|
|
if pubKey != nil {
|
|
// Update public key in authority record.
|
|
authority.OwnerPublicKey = getAuthorityPubKey(pubKey)
|
|
k.SetNameAuthority(ctx, name, authority)
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// HasNameRecord - checks if a name record exists.
|
|
func (k Keeper) HasNameRecord(ctx sdk.Context, crn string) bool {
|
|
store := ctx.KVStore(k.storeKey)
|
|
return store.Has(GetNameRecordIndexKey(crn))
|
|
}
|
|
|
|
// GetNameRecord - gets a name record from the store.
|
|
func GetNameRecord(store sdk.KVStore, codec codec.BinaryCodec, crn string) *types.NameRecord {
|
|
nameRecordKey := GetNameRecordIndexKey(crn)
|
|
if !store.Has(nameRecordKey) {
|
|
return nil
|
|
}
|
|
|
|
bz := store.Get(nameRecordKey)
|
|
var obj types.NameRecord
|
|
codec.MustUnmarshal(bz, &obj)
|
|
|
|
return &obj
|
|
}
|
|
|
|
// GetNameRecord - gets a name record from the store.
|
|
func (k Keeper) GetNameRecord(ctx sdk.Context, crn string) *types.NameRecord {
|
|
_, _, authority, err := k.getAuthority(ctx, crn)
|
|
if err != nil || authority.Status != types.AuthorityActive {
|
|
// If authority is not active (or any other error), lookup fails.
|
|
return nil
|
|
}
|
|
|
|
nameRecord := GetNameRecord(ctx.KVStore(k.storeKey), k.cdc, crn)
|
|
|
|
// Name record may not exist.
|
|
if nameRecord == nil {
|
|
return nil
|
|
}
|
|
|
|
// Name lookup should fail if the name record is stale.
|
|
// i.e. authority was registered later than the name.
|
|
if authority.Height > nameRecord.Latest.Height {
|
|
return nil
|
|
}
|
|
|
|
return nameRecord
|
|
}
|
|
|
|
// RemoveRecordToNameMapping removes a name from the record ID -> []names index.
|
|
func RemoveRecordToNameMapping(store sdk.KVStore, id string, crn string) {
|
|
reverseNameIndexKey := GetCIDToNamesIndexKey(id)
|
|
|
|
names, _ := helpers.BytesArrToStringArr(store.Get(reverseNameIndexKey))
|
|
nameSet := helpers.SliceToSet(names)
|
|
nameSet.Remove(crn)
|
|
|
|
if nameSet.Cardinality() == 0 {
|
|
// Delete as storing empty slice throws error from baseapp.
|
|
store.Delete(reverseNameIndexKey)
|
|
} else {
|
|
data, _ := helpers.StrArrToBytesArr(helpers.SetToSlice(nameSet))
|
|
store.Set(reverseNameIndexKey, data)
|
|
}
|
|
}
|
|
|
|
// AddRecordToNameMapping adds a name to the record ID -> []names index.
|
|
func AddRecordToNameMapping(store sdk.KVStore, id string, crn string) {
|
|
reverseNameIndexKey := GetCIDToNamesIndexKey(id)
|
|
|
|
var names []string
|
|
if store.Has(reverseNameIndexKey) {
|
|
names, _ = helpers.BytesArrToStringArr(store.Get(reverseNameIndexKey))
|
|
}
|
|
|
|
nameSet := helpers.SliceToSet(names)
|
|
nameSet.Add(crn)
|
|
bz, _ := helpers.StrArrToBytesArr(helpers.SetToSlice(nameSet))
|
|
store.Set(reverseNameIndexKey, bz)
|
|
}
|
|
|
|
// SetNameRecord - sets a name record.
|
|
func SetNameRecord(store sdk.KVStore, codec codec.BinaryCodec, crn string, id string, height int64) {
|
|
nameRecordIndexKey := GetNameRecordIndexKey(crn)
|
|
|
|
var nameRecord types.NameRecord
|
|
if store.Has(nameRecordIndexKey) {
|
|
bz := store.Get(nameRecordIndexKey)
|
|
codec.MustUnmarshal(bz, &nameRecord)
|
|
nameRecord.History = append(nameRecord.History, nameRecord.Latest)
|
|
|
|
// Update old CID -> []Name index.
|
|
if nameRecord.Latest.Id != "" || len(nameRecord.Latest.Id) != 0 {
|
|
RemoveRecordToNameMapping(store, nameRecord.Latest.Id, crn)
|
|
}
|
|
}
|
|
|
|
nameRecord.Latest = &types.NameRecordEntry{
|
|
Id: id,
|
|
Height: uint64(height),
|
|
}
|
|
|
|
store.Set(nameRecordIndexKey, codec.MustMarshal(&nameRecord))
|
|
|
|
// Update new CID -> []Name index.
|
|
if id != "" {
|
|
AddRecordToNameMapping(store, id, crn)
|
|
}
|
|
}
|
|
|
|
// SetNameRecord - sets a name record.
|
|
func (k Keeper) SetNameRecord(ctx sdk.Context, crn string, id string) {
|
|
SetNameRecord(ctx.KVStore(k.storeKey), k.cdc, crn, id, ctx.BlockHeight())
|
|
|
|
// Update changeSet for name.
|
|
k.updateBlockChangeSetForName(ctx, crn)
|
|
}
|
|
|
|
// ProcessSetName creates a CRN -> Record ID mapping.
|
|
func (k Keeper) ProcessSetName(ctx sdk.Context, msg types.MsgSetName) error {
|
|
signerAddress, err := sdk.AccAddressFromBech32(msg.Signer)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
err = k.checkCRNAccess(ctx, signerAddress, msg.Crn)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
nameRecord := k.GetNameRecord(ctx, msg.Crn)
|
|
if nameRecord != nil && nameRecord.Latest.Id == msg.Cid {
|
|
return nil
|
|
}
|
|
|
|
k.SetNameRecord(ctx, msg.Crn, msg.Cid)
|
|
|
|
return nil
|
|
}
|
|
|
|
// ListNameRecords - get all name records.
|
|
func (k Keeper) ListNameRecords(ctx sdk.Context) []types.NameEntry {
|
|
var nameEntries []types.NameEntry
|
|
store := ctx.KVStore(k.storeKey)
|
|
itr := sdk.KVStorePrefixIterator(store, PrefixCRNToNameRecordIndex)
|
|
defer itr.Close()
|
|
for ; itr.Valid(); itr.Next() {
|
|
bz := store.Get(itr.Key())
|
|
if bz != nil {
|
|
var record types.NameRecord
|
|
k.cdc.MustUnmarshal(bz, &record)
|
|
nameEntries = append(nameEntries, types.NameEntry{
|
|
Name: string(itr.Key()[len(PrefixCRNToNameRecordIndex):]),
|
|
Entry: &record,
|
|
})
|
|
}
|
|
}
|
|
|
|
return nameEntries
|
|
}
|
|
|
|
// ProcessReserveSubAuthority reserves a sub-authority.
|
|
func (k Keeper) ProcessReserveSubAuthority(ctx sdk.Context, name string, msg types.MsgReserveAuthority) error {
|
|
// Get parent authority name.
|
|
names := strings.Split(name, ".")
|
|
parent := strings.Join(names[1:], ".")
|
|
|
|
// Check if parent authority exists.
|
|
if !k.HasNameAuthority(ctx, parent) {
|
|
return sdkerrors.Wrap(sdkerrors.ErrInvalidRequest, "Parent authority not found.")
|
|
}
|
|
parentAuthority := k.GetNameAuthority(ctx, parent)
|
|
|
|
// Sub-authority creator needs to be the owner of the parent authority.
|
|
if parentAuthority.OwnerAddress != msg.Signer {
|
|
return sdkerrors.Wrap(sdkerrors.ErrUnauthorized, "Access denied.")
|
|
}
|
|
|
|
// Sub-authority owner defaults to parent authority owner.
|
|
subAuthorityOwner := msg.Signer
|
|
if len(msg.Owner) != 0 {
|
|
// Override sub-authority owner if provided in message.
|
|
subAuthorityOwner = msg.Owner
|
|
}
|
|
|
|
sdkErr := k.createAuthority(ctx, name, subAuthorityOwner, false)
|
|
if sdkErr != nil {
|
|
return sdkErr
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func GetAuctionToAuthorityIndexKey(auctionID string) []byte {
|
|
return append(PrefixAuctionToAuthorityNameIndex, []byte(auctionID)...)
|
|
}
|
|
|
|
func (k Keeper) AddAuctionToAuthorityMapping(ctx sdk.Context, auctionID string, name string) {
|
|
store := ctx.KVStore(k.storeKey)
|
|
store.Set(GetAuctionToAuthorityIndexKey(auctionID), []byte(name))
|
|
}
|
|
|
|
func (k Keeper) createAuthority(ctx sdk.Context, name string, owner string, isRoot bool) error {
|
|
moduleParams := k.GetParams(ctx)
|
|
|
|
if k.HasNameAuthority(ctx, name) {
|
|
authority := k.GetNameAuthority(ctx, name)
|
|
if authority.Status != types.AuthorityExpired {
|
|
return sdkerrors.Wrap(sdkerrors.ErrInvalidRequest, "Name already reserved.")
|
|
}
|
|
}
|
|
|
|
ownerAddress, err := sdk.AccAddressFromBech32(owner)
|
|
if err != nil {
|
|
return sdkerrors.Wrap(sdkerrors.ErrInvalidRequest, "Invalid owner address.")
|
|
}
|
|
ownerAccount := k.accountKeeper.GetAccount(ctx, ownerAddress)
|
|
if ownerAccount == nil {
|
|
return sdkerrors.Wrap(sdkerrors.ErrUnknownAddress, "Account not found.")
|
|
}
|
|
|
|
authority := types.NameAuthority{
|
|
OwnerPublicKey: getAuthorityPubKey(ownerAccount.GetPubKey()),
|
|
OwnerAddress: owner,
|
|
Height: uint64(ctx.BlockHeight()),
|
|
Status: types.AuthorityActive,
|
|
AuctionId: "",
|
|
BondId: "",
|
|
ExpiryTime: ctx.BlockTime().Add(moduleParams.AuthorityGracePeriod),
|
|
}
|
|
|
|
if isRoot && moduleParams.AuthorityAuctionEnabled {
|
|
// If auctions are enabled, clear out owner fields. They will be set after a winner is picked.
|
|
authority.OwnerAddress = ""
|
|
authority.OwnerPublicKey = ""
|
|
// Reset bond ID if required.
|
|
if authority.BondId != "" || len(authority.BondId) != 0 {
|
|
k.RemoveBondToAuthorityIndexEntry(ctx, authority.BondId, name)
|
|
authority.BondId = ""
|
|
}
|
|
|
|
params := auctiontypes.Params{
|
|
CommitsDuration: moduleParams.AuthorityAuctionCommitsDuration,
|
|
RevealsDuration: moduleParams.AuthorityAuctionRevealsDuration,
|
|
CommitFee: moduleParams.AuthorityAuctionCommitFee,
|
|
RevealFee: moduleParams.AuthorityAuctionRevealFee,
|
|
MinimumBid: moduleParams.AuthorityAuctionMinimumBid,
|
|
}
|
|
|
|
// Create an auction.
|
|
msg := auctiontypes.NewMsgCreateAuction(params, ownerAddress)
|
|
|
|
auction, sdkErr := k.auctionKeeper.CreateAuction(ctx, msg)
|
|
if sdkErr != nil {
|
|
return sdkErr
|
|
}
|
|
|
|
// Create auction ID -> authority name index.
|
|
k.AddAuctionToAuthorityMapping(ctx, auction.Id, name)
|
|
|
|
authority.Status = types.AuthorityUnderAuction
|
|
authority.AuctionId = auction.Id
|
|
authority.ExpiryTime = auction.RevealsEndTime.Add(moduleParams.AuthorityGracePeriod)
|
|
}
|
|
|
|
k.SetNameAuthority(ctx, name, &authority)
|
|
k.InsertAuthorityExpiryQueue(ctx, name, authority.ExpiryTime)
|
|
|
|
return nil
|
|
}
|
|
|
|
// ProcessReserveAuthority reserves a name authority.
|
|
func (k Keeper) ProcessReserveAuthority(ctx sdk.Context, msg types.MsgReserveAuthority) error {
|
|
crn := fmt.Sprintf("crn://%s", msg.GetName())
|
|
parsedCrn, err := url.Parse(crn)
|
|
if err != nil {
|
|
return sdkerrors.Wrap(sdkerrors.ErrInvalidRequest, "Invalid name")
|
|
}
|
|
name := parsedCrn.Host
|
|
if fmt.Sprintf("crn://%s", name) != crn {
|
|
return sdkerrors.Wrap(sdkerrors.ErrInvalidRequest, "Invalid name")
|
|
}
|
|
if strings.Contains(name, ".") {
|
|
return k.ProcessReserveSubAuthority(ctx, name, msg)
|
|
}
|
|
err = k.createAuthority(ctx, name, msg.GetSigner(), true)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (k Keeper) ProcessSetAuthorityBond(ctx sdk.Context, msg types.MsgSetAuthorityBond) error {
|
|
name := msg.GetName()
|
|
signer := msg.GetSigner()
|
|
if !k.HasNameAuthority(ctx, name) {
|
|
return sdkerrors.Wrap(sdkerrors.ErrInvalidRequest, "Name authority not found.")
|
|
}
|
|
authority := k.GetNameAuthority(ctx, name)
|
|
if authority.OwnerAddress != signer {
|
|
return sdkerrors.Wrap(sdkerrors.ErrUnauthorized, "Access denied")
|
|
}
|
|
|
|
if !k.bondKeeper.HasBond(ctx, msg.BondId) {
|
|
return sdkerrors.Wrap(sdkerrors.ErrInvalidRequest, "Bond not found.")
|
|
}
|
|
//
|
|
bond := k.bondKeeper.GetBond(ctx, msg.BondId)
|
|
if bond.Owner != signer {
|
|
return sdkerrors.Wrap(sdkerrors.ErrUnauthorized, "Bond owner mismatch.")
|
|
}
|
|
|
|
// No-op if bond hasn't changed.
|
|
if authority.BondId == msg.BondId {
|
|
return nil
|
|
}
|
|
|
|
// Remove old bond ID mapping, if any.
|
|
if authority.BondId != "" {
|
|
k.RemoveBondToAuthorityIndexEntry(ctx, authority.BondId, name)
|
|
}
|
|
|
|
// Update bond ID for authority.
|
|
authority.BondId = bond.Id
|
|
k.SetNameAuthority(ctx, name, &authority)
|
|
// Add new bond ID mapping.
|
|
k.AddBondToAuthorityIndexEntry(ctx, authority.BondId, name)
|
|
return nil
|
|
}
|
|
|
|
// ProcessDeleteName removes a CRN -> Record ID mapping.
|
|
func (k Keeper) ProcessDeleteName(ctx sdk.Context, msg types.MsgDeleteNameAuthority) error {
|
|
signerAddress, err := sdk.AccAddressFromBech32(msg.Signer)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
err = k.checkCRNAccess(ctx, signerAddress, msg.Crn)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if !k.HasNameRecord(ctx, msg.Crn) {
|
|
return sdkerrors.Wrap(sdkerrors.ErrInvalidRequest, "Name not found.")
|
|
}
|
|
|
|
// Set CID to empty string.
|
|
k.SetNameRecord(ctx, msg.Crn, "")
|
|
|
|
return nil
|
|
}
|
|
|
|
func (k Keeper) GetAuthorityExpiryQueue(ctx sdk.Context) []*types.ExpiryQueueRecord {
|
|
var authorities []*types.ExpiryQueueRecord
|
|
|
|
store := ctx.KVStore(k.storeKey)
|
|
itr := sdk.KVStorePrefixIterator(store, PrefixExpiryTimeToAuthoritiesIndex)
|
|
defer itr.Close()
|
|
for ; itr.Valid(); itr.Next() {
|
|
var record []string
|
|
record, err := helpers.BytesArrToStringArr(itr.Value())
|
|
if err != nil {
|
|
return authorities
|
|
}
|
|
authorities = append(authorities, &types.ExpiryQueueRecord{
|
|
Id: string(itr.Key()[len(PrefixExpiryTimeToAuthoritiesIndex):]),
|
|
Value: record,
|
|
})
|
|
}
|
|
|
|
return authorities
|
|
}
|
|
|
|
// ResolveCRN resolves a CRN to a record.
|
|
func (k Keeper) ResolveCRN(ctx sdk.Context, crn string) *types.Record {
|
|
_, _, authority, err := k.getAuthority(ctx, crn)
|
|
if err != nil || authority.Status != types.AuthorityActive {
|
|
// If authority is not active (or any other error), resolution fails.
|
|
return nil
|
|
}
|
|
|
|
// Name should not resolve if it's stale.
|
|
// i.e. authority was registered later than the name.
|
|
record, nameRecord := ResolveCRN(ctx.KVStore(k.storeKey), crn, k, ctx)
|
|
if authority.Height > nameRecord.Latest.Height {
|
|
return nil
|
|
}
|
|
|
|
return record
|
|
}
|
|
|
|
// ResolveCRN resolves a CRN to a record.
|
|
func ResolveCRN(store sdk.KVStore, crn string, k Keeper, c sdk.Context) (*types.Record, *types.NameRecord) {
|
|
nameKey := GetNameRecordIndexKey(crn)
|
|
|
|
if store.Has(nameKey) {
|
|
bz := store.Get(nameKey)
|
|
var obj types.NameRecord
|
|
k.cdc.MustUnmarshal(bz, &obj)
|
|
|
|
recordExists := k.HasRecord(c, obj.Latest.Id)
|
|
if !recordExists || obj.Latest.Id == "" {
|
|
return nil, &obj
|
|
}
|
|
|
|
record := k.GetRecord(c, obj.Latest.Id)
|
|
return &record, &obj
|
|
}
|
|
|
|
return nil, nil
|
|
}
|
|
|
|
func getAuthorityExpiryQueueTimeKey(timestamp time.Time) []byte {
|
|
timeBytes := sdk.FormatTimeBytes(timestamp)
|
|
return append(PrefixExpiryTimeToAuthoritiesIndex, timeBytes...)
|
|
}
|
|
|
|
func (k Keeper) InsertAuthorityExpiryQueue(ctx sdk.Context, name string, expiryTime time.Time) {
|
|
timeSlice := k.GetAuthorityExpiryQueueTimeSlice(ctx, expiryTime)
|
|
timeSlice = append(timeSlice, name)
|
|
k.SetAuthorityExpiryQueueTimeSlice(ctx, expiryTime, timeSlice)
|
|
}
|
|
|
|
func (k Keeper) GetAuthorityExpiryQueueTimeSlice(ctx sdk.Context, timestamp time.Time) []string {
|
|
store := ctx.KVStore(k.storeKey)
|
|
|
|
bz := store.Get(getAuthorityExpiryQueueTimeKey(timestamp))
|
|
if bz == nil {
|
|
return []string{}
|
|
}
|
|
|
|
names, err := helpers.BytesArrToStringArr(bz)
|
|
if err != nil {
|
|
return []string{}
|
|
}
|
|
|
|
return names
|
|
}
|
|
|
|
func (k Keeper) SetAuthorityExpiryQueueTimeSlice(ctx sdk.Context, timestamp time.Time, names []string) {
|
|
store := ctx.KVStore(k.storeKey)
|
|
bz, _ := helpers.StrArrToBytesArr(names)
|
|
store.Set(getAuthorityExpiryQueueTimeKey(timestamp), bz)
|
|
}
|
|
|
|
// ProcessAuthorityExpiryQueue tries to renew expiring authorities (by collecting rent) else marks them as expired.
|
|
func (k Keeper) ProcessAuthorityExpiryQueue(ctx sdk.Context) {
|
|
names := k.GetAllExpiredAuthorities(ctx, ctx.BlockHeader().Time)
|
|
for _, name := range names {
|
|
authority := k.GetNameAuthority(ctx, name)
|
|
|
|
// If authority doesn't have an associated bond or if bond no longer exists, mark it expired.
|
|
if authority.BondId == "" || !k.bondKeeper.HasBond(ctx, authority.BondId) {
|
|
authority.Status = types.AuthorityExpired
|
|
k.SetNameAuthority(ctx, name, &authority)
|
|
k.DeleteAuthorityExpiryQueue(ctx, name, authority)
|
|
|
|
ctx.Logger().Info(fmt.Sprintf("Marking authority expired as no bond present: %s", name))
|
|
|
|
return
|
|
}
|
|
|
|
// Try to renew the authority by taking rent.
|
|
k.TryTakeAuthorityRent(ctx, name, authority)
|
|
}
|
|
}
|
|
|
|
// DeleteAuthorityExpiryQueueTimeSlice deletes a specific authority expiry queue timeslice.
|
|
func (k Keeper) DeleteAuthorityExpiryQueueTimeSlice(ctx sdk.Context, timestamp time.Time) {
|
|
store := ctx.KVStore(k.storeKey)
|
|
store.Delete(getAuthorityExpiryQueueTimeKey(timestamp))
|
|
}
|
|
|
|
// DeleteAuthorityExpiryQueue deletes an authority name from the authority expiry queue.
|
|
func (k Keeper) DeleteAuthorityExpiryQueue(ctx sdk.Context, name string, authority types.NameAuthority) {
|
|
timeSlice := k.GetAuthorityExpiryQueueTimeSlice(ctx, authority.ExpiryTime)
|
|
newTimeSlice := []string{}
|
|
|
|
for _, existingName := range timeSlice {
|
|
if !bytes.Equal([]byte(existingName), []byte(name)) {
|
|
newTimeSlice = append(newTimeSlice, existingName)
|
|
}
|
|
}
|
|
|
|
if len(newTimeSlice) == 0 {
|
|
k.DeleteAuthorityExpiryQueueTimeSlice(ctx, authority.ExpiryTime)
|
|
} else {
|
|
k.SetAuthorityExpiryQueueTimeSlice(ctx, authority.ExpiryTime, newTimeSlice)
|
|
}
|
|
}
|
|
|
|
// GetAllExpiredAuthorities returns a concatenated list of all the timeslices before currTime.
|
|
func (k Keeper) GetAllExpiredAuthorities(ctx sdk.Context, currTime time.Time) (expiredAuthorityNames []string) {
|
|
// Gets an iterator for all timeslices from time 0 until the current block header time.
|
|
itr := k.AuthorityExpiryQueueIterator(ctx, ctx.BlockHeader().Time)
|
|
defer itr.Close()
|
|
|
|
for ; itr.Valid(); itr.Next() {
|
|
timeslice := []string{}
|
|
timeslice, err := helpers.BytesArrToStringArr(itr.Value())
|
|
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
expiredAuthorityNames = append(expiredAuthorityNames, timeslice...)
|
|
}
|
|
|
|
return expiredAuthorityNames
|
|
}
|
|
|
|
// AuthorityExpiryQueueIterator returns all the authority expiry queue timeslices from time 0 until endTime.
|
|
func (k Keeper) AuthorityExpiryQueueIterator(ctx sdk.Context, endTime time.Time) sdk.Iterator {
|
|
store := ctx.KVStore(k.storeKey)
|
|
rangeEndBytes := sdk.InclusiveEndBytes(getAuthorityExpiryQueueTimeKey(endTime))
|
|
return store.Iterator(PrefixExpiryTimeToAuthoritiesIndex, rangeEndBytes)
|
|
}
|
|
|
|
// TryTakeAuthorityRent tries to take rent from the authority bond.
|
|
func (k Keeper) TryTakeAuthorityRent(ctx sdk.Context, name string, authority types.NameAuthority) {
|
|
ctx.Logger().Info(fmt.Sprintf("Trying to take rent for authority: %s", name))
|
|
|
|
params := k.GetParams(ctx)
|
|
rent := params.AuthorityRent
|
|
sdkErr := k.bondKeeper.TransferCoinsToModuleAccount(ctx, authority.BondId, types.AuthorityRentModuleAccountName, sdk.NewCoins(rent))
|
|
|
|
if sdkErr != nil {
|
|
// Insufficient funds, mark authority as expired.
|
|
authority.Status = types.AuthorityExpired
|
|
k.SetNameAuthority(ctx, name, &authority)
|
|
k.DeleteAuthorityExpiryQueue(ctx, name, authority)
|
|
|
|
ctx.Logger().Info(fmt.Sprintf("Insufficient funds in owner account to pay authority rent, marking as expired: %s", name))
|
|
|
|
return
|
|
}
|
|
|
|
// Delete old expiry queue entry, create new one.
|
|
k.DeleteAuthorityExpiryQueue(ctx, name, authority)
|
|
authority.ExpiryTime = ctx.BlockTime().Add(params.AuthorityRentDuration)
|
|
k.InsertAuthorityExpiryQueue(ctx, name, authority.ExpiryTime)
|
|
|
|
// Save authority.
|
|
authority.Status = types.AuthorityActive
|
|
k.SetNameAuthority(ctx, name, &authority)
|
|
k.AddBondToAuthorityIndexEntry(ctx, authority.BondId, name)
|
|
|
|
ctx.Logger().Info(fmt.Sprintf("Authority rent paid successfully: %s", name))
|
|
}
|
|
|
|
// ListNameAuthorityRecords - get all name authority records.
|
|
func (k Keeper) ListNameAuthorityRecords(ctx sdk.Context) map[string]types.NameAuthority {
|
|
nameAuthorityRecords := make(map[string]types.NameAuthority)
|
|
store := ctx.KVStore(k.storeKey)
|
|
|
|
itr := sdk.KVStorePrefixIterator(store, PrefixNameAuthorityRecordIndex)
|
|
defer itr.Close()
|
|
for ; itr.Valid(); itr.Next() {
|
|
bz := store.Get(itr.Key())
|
|
if bz != nil {
|
|
var record types.NameAuthority
|
|
k.cdc.MustUnmarshal(bz, &record)
|
|
nameAuthorityRecords[string(itr.Key()[len(PrefixNameAuthorityRecordIndex):])] = record
|
|
}
|
|
}
|
|
|
|
return nameAuthorityRecords
|
|
}
|