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claim.go
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claim.go
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package miner
import (
"context"
"encoding/hex"
"fmt"
"net/http"
"github.com/filecoin-project/go-state-types/big"
"github.com/application-research/estuary/model"
"github.com/application-research/estuary/util"
"github.com/filecoin-project/go-address"
"github.com/filecoin-project/go-state-types/crypto"
"github.com/filecoin-project/lotus/api"
"github.com/filecoin-project/lotus/chain/types"
"github.com/filecoin-project/lotus/lib/sigs"
)
type ClaimMinerBody struct {
Miner address.Address `json:"miner"`
Claim string `json:"claim"`
Name string `json:"name"`
}
func (mm *MinerManager) ClaimMiner(ctx context.Context, params ClaimMinerBody, u *util.User) error {
var sm []model.StorageMiner
if err := mm.db.Find(&sm, "address = ?", params.Miner.String()).Error; err != nil {
return err
}
minfo, err := mm.api.StateMinerInfo(ctx, params.Miner, types.EmptyTSK)
if err != nil {
return err
}
acckey, err := mm.api.StateAccountKey(ctx, minfo.Worker, types.EmptyTSK)
if err != nil {
return err
}
sigb, err := hex.DecodeString(params.Claim)
if err != nil {
return err
}
if len(sigb) < 2 {
return &util.HttpError{
Code: http.StatusBadRequest,
Reason: util.ERR_INVALID_MINER_CLAIM_SIG,
Details: "miner claim string is below accepted lenght",
}
}
sig := &crypto.Signature{
Type: crypto.SigType(sigb[0]),
Data: sigb[1:],
}
msg := mm.GetMsgForMinerClaim(params.Miner, u.ID)
if err := sigs.Verify(sig, acckey, msg); err != nil {
return &util.HttpError{
Code: http.StatusBadRequest,
Reason: util.ERR_INVALID_MINER_CLAIM_SIG,
Details: err.Error(),
}
}
if len(sm) == 0 {
// This is a new miner, need to run some checks first
if err := mm.checkNewMiner(ctx, minfo, params.Miner); err != nil {
return err
}
return mm.db.Create(&model.StorageMiner{
Address: util.DbAddr{Addr: params.Miner},
Name: params.Name,
Owner: u.ID,
}).Error
}
return mm.db.Model(model.StorageMiner{}).Where("id = ?", sm[0].ID).UpdateColumn("owner", u.ID).Error
}
func (mm *MinerManager) GetMsgForMinerClaim(miner address.Address, uid uint) []byte {
return []byte(fmt.Sprintf("---- user %d owns miner %s ----", uid, miner))
}
func (mm *MinerManager) checkNewMiner(ctx context.Context, minfo api.MinerInfo, addr address.Address) error {
if minfo.PeerId == nil {
return &util.HttpError{
Code: http.StatusBadRequest,
Reason: util.ERR_INVALID_MINER_CLAIM_NO_PEER_ID,
Details: "miner has no peer ID set",
}
}
if len(minfo.Multiaddrs) == 0 {
return &util.HttpError{
Code: http.StatusBadRequest,
Reason: util.ERR_INVALID_MINER_CLAIM_NO_MULTI_ADDR,
Details: "miner has no addresses set on chain",
}
}
pow, err := mm.api.StateMinerPower(ctx, addr, types.EmptyTSK)
if err != nil {
return fmt.Errorf("could not check miners power: %w", err)
}
if pow == nil {
return &util.HttpError{
Code: http.StatusBadRequest,
Reason: util.ERR_INVALID_MINER_CLAIM_NO_POWER,
Details: "no miner power details were found",
}
}
if types.BigCmp(pow.MinerPower.QualityAdjPower, types.NewInt(1<<40)) < 0 {
return &util.HttpError{
Code: http.StatusBadRequest,
Reason: util.ERR_INVALID_MINER_CLAIM_POWER_BELOW_1TIB,
Details: "miner must have at least 1TiB of power to be considered by estuary",
}
}
ask, err := mm.filClient.GetAsk(ctx, addr)
if err != nil {
return fmt.Errorf("failed to get ask from miner: %w", err)
}
if ask == nil || ask.Ask == nil || ask.Ask.Ask == nil {
return &util.HttpError{
Code: http.StatusBadRequest,
Reason: util.ERR_INVALID_MINER_CLAIM_NO_ASK,
Details: "miner ask has not been properly set",
}
}
if !ask.Ask.Ask.VerifiedPrice.Equals(big.NewInt(0)) {
return &util.HttpError{
Code: http.StatusBadRequest,
Reason: util.ERR_INVALID_MINER_CLAIM_ASK_VERIFIED_PRICE_IS_NOT_ZERO,
Details: "miners verified deal price is not zero",
}
}
return nil
}