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publish.go
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publish.go
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package relayer
import (
"encoding/hex"
"fmt"
"strings"
sdk "github.com/cosmos/cosmos-sdk/types"
legacyerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/rollchains/tiablob/celestia/appconsts"
blobtypes "github.com/rollchains/tiablob/celestia/blob/types"
tmtypes "github.com/tendermint/tendermint/types"
"github.com/avast/retry-go/v4"
)
const (
CelestiaPublishKeyName = "blob"
CelestiaFeegrantKeyName = "feegrant"
celestiaBech32Prefix = "celestia"
celestiaBlobPostMemo = "Posted by tiablob https://rollchains.com"
)
// PostNextBlocks is called by the current proposing validator during PrepareProposal.
// If on the publish boundary, it will return the block heights that will be published
// It will not publish the block being proposed.
func (r *Relayer) ProposePostNextBlocks(ctx sdk.Context) []int64 {
height := ctx.BlockHeight()
if height <= 1 {
return nil
}
// only publish new blocks on interval
if (height-1)%int64(r.celestiaPublishBlockInterval) != 0 {
return nil
}
var blocks []int64
for block := height - int64(r.celestiaPublishBlockInterval); block < height; block++ {
blocks = append(blocks, block)
}
return blocks
}
// PostBlocks is call in the preblocker, the proposer will publish at this point with their block accepted
func (r *Relayer) PostBlocks(ctx sdk.Context, blocks []int64) {
go r.postBlocks(ctx, blocks)
}
// postBlocks will publish rollchain blocks to celestia
// start height is inclusive, end height is exclusive
func (r *Relayer) postBlocks(ctx sdk.Context, blocks []int64) {
if len(blocks) == 0 {
return
}
if !r.celestiaProvider.KeyExists(CelestiaPublishKeyName) {
r.logger.Error("No Celestia key found, please add with `tiablob keys add` command")
return
}
// if not set, will not use feegrant
feeGranter, _ := r.celestiaProvider.GetKeyAddress(CelestiaFeegrantKeyName)
blobs := make([]*blobtypes.Blob, len(blocks))
for i, height := range blocks {
res, err := r.localProvider.GetBlockAtHeight(ctx, height)
if err != nil {
r.logger.Error("Error getting block", "height:", height, "error", err)
return
}
blockProto, err := res.Block.ToProto()
if err != nil {
r.logger.Error("Error protoing block", "error", err)
return
}
blockBz, err := blockProto.Marshal()
if err != nil {
r.logger.Error("Error marshaling block", "error", err)
return
}
blob, err := blobtypes.NewBlob(r.celestiaNamespace, blockBz, appconsts.ShareVersionZero)
if err != nil {
r.logger.Error("Error building blob", "error", err)
return
}
blobs[i] = blob
}
blobLens := make([]uint32, len(blocks))
for i, blob := range blobs {
blobLens[i] = uint32(len(blob.Data))
}
gasLimit := blobtypes.DefaultEstimateGas(blobLens)
if feeGranter != nil {
// 12000 required for feegrant
gasLimit = gasLimit + 12000
}
signer, err := r.celestiaProvider.ShowAddress(CelestiaPublishKeyName, "celestia")
if err != nil {
r.logger.Error("Error getting signer address", "error", err)
return
}
msg, err := blobtypes.NewMsgPayForBlobs(signer, blobs...)
if err != nil {
r.logger.Error("Error building MsgPayForBlobs", "error", err)
return
}
ws := r.celestiaProvider.EnsureWalletState(CelestiaPublishKeyName)
ws.Mu.Lock()
defer ws.Mu.Unlock()
if err := retry.Do(func() error {
seq, txBz, err := r.celestiaProvider.Sign(
ctx,
ws,
r.celestiaChainID,
r.celestiaGasPrice,
r.celestiaGasAdjustment,
gasLimit,
celestiaBech32Prefix,
CelestiaPublishKeyName,
feeGranter,
[]sdk.Msg{msg},
celestiaBlobPostMemo,
)
if err != nil {
// Account sequence mismatch errors can happen on the simulated transaction also.
if strings.Contains(err.Error(), legacyerrors.ErrWrongSequence.Error()) {
ws.HandleAccountSequenceMismatchError(err)
}
return fmt.Errorf("Error signing blob tx, %w", err)
}
blobTx, err := tmtypes.MarshalBlobTx(txBz, blobs...)
if err != nil {
return fmt.Errorf("Error marshaling blob tx, %w", err)
}
res, err := r.celestiaProvider.Broadcast(ctx, seq, ws, blobTx)
if err != nil {
if strings.Contains(err.Error(), legacyerrors.ErrWrongSequence.Error()) {
ws.HandleAccountSequenceMismatchError(err)
}
return fmt.Errorf("Error broadcasting blob tx, %w", err)
}
r.logger.Info("Posted block(s) to Celestia",
"height_start", blocks[0],
"height_end", blocks[len(blocks)-1],
"celestia_height", res.Height,
"namespace", string(r.celestiaNamespace.ID[18:]),
"tx_hash", hex.EncodeToString(res.Hash),
"url", fmt.Sprintf("https://mocha.celenium.io/tx/%s", hex.EncodeToString(res.Hash)),
)
return nil
}, retry.Context(ctx), retry.Attempts(uint(2)), retry.OnRetry(func(n uint, err error) {
r.logger.Info(
"Failed to published blobs",
"attempt", n+1,
"error", err,
)
})); err != nil {
r.logger.Error("Error blobs not published")
}
}