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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,140 @@ | ||
| package actions | ||
|
|
||
| import ( | ||
| "context" | ||
| "encoding/binary" | ||
| "fmt" | ||
|
|
||
| "github.com/AnomalyFi/hypersdk/chain" | ||
| "github.com/AnomalyFi/hypersdk/codec" | ||
| "github.com/AnomalyFi/hypersdk/consts" | ||
| "github.com/AnomalyFi/hypersdk/crypto/bls" | ||
| "github.com/AnomalyFi/hypersdk/state" | ||
| "github.com/AnomalyFi/hypersdk/utils" | ||
| "github.com/AnomalyFi/nodekit-seq/auth" | ||
| "github.com/AnomalyFi/nodekit-seq/storage" | ||
| "github.com/ava-labs/avalanchego/ids" | ||
| ) | ||
|
|
||
| var _ chain.Action = (*Auction)(nil) | ||
|
|
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| type AuctionInfo struct { | ||
| EpochNumber uint64 `json:"epochNumber"` | ||
| BidPrice uint64 `json:"bidPrice"` | ||
| BuilderSEQAddress codec.Address `json:"builderSEQAddress"` | ||
| } | ||
|
|
||
| type Auction struct { | ||
| AuctionInfo AuctionInfo `json:"auctionInfo"` | ||
| BuilderPublicKey []byte `json:"builderPublicKey"` // BLS public key of the bidder. | ||
| BuilderSignature []byte `json:"signature"` | ||
| } | ||
|
|
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| func (*Auction) GetTypeID() uint8 { | ||
| return AuctionID | ||
| } | ||
|
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| func (a *Auction) StateKeys(actor codec.Address, _ ids.ID) state.Keys { | ||
| return state.Keys{ | ||
| string(storage.BalanceKey(actor)): state.Read | state.Write, | ||
| string(storage.BalanceKey(ArcadiaFundAddress())): state.All, | ||
| string(storage.ArcadiaBidKey(a.AuctionInfo.EpochNumber)): state.Write | state.Allocate, | ||
| } | ||
| } | ||
|
|
||
| func (*Auction) StateKeysMaxChunks() []uint16 { | ||
| return []uint16{storage.BalanceChunks, storage.BalanceChunks, storage.EpochExitChunks} | ||
| } | ||
|
|
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| // This is a permissioned action, only authorized address can only pass the execution. | ||
| func (a *Auction) Execute( | ||
| ctx context.Context, | ||
| rules chain.Rules, | ||
| mu state.Mutable, | ||
| _ int64, | ||
| actor codec.Address, | ||
| _ ids.ID, | ||
| ) ([][]byte, error) { | ||
| // TODO: this allows any whitelisted address to submit arcadia bid. | ||
| // change this to only allow the arcadia address to submit the bid. | ||
| if !IsWhiteListed(rules, actor) { | ||
| return nil, ErrNotWhiteListed | ||
| } | ||
| pubkey, err := bls.PublicKeyFromBytes(a.BuilderPublicKey) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to parse public key: %w", err) | ||
| } | ||
|
|
||
| msg := make([]byte, 0, 16) | ||
| binary.BigEndian.PutUint64(msg[:8], a.AuctionInfo.EpochNumber) | ||
| binary.BigEndian.PutUint64(msg[8:], a.AuctionInfo.BidPrice) | ||
|
|
||
| sig, err := bls.SignatureFromBytes(a.BuilderSignature) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to parse signature: %w", err) | ||
| } | ||
|
|
||
| // Verify the signature. | ||
| if !bls.Verify(msg, pubkey, sig) { | ||
| return nil, ErrInvalidBidderSignature | ||
| } | ||
| builderSEQAddress := codec.CreateAddress(auth.BLSID, utils.ToID(a.BuilderPublicKey)) | ||
| if builderSEQAddress != a.AuctionInfo.BuilderSEQAddress { | ||
| return nil, ErrParsedBuilderSEQAddressMismatch | ||
| } | ||
| // deduct the bid amount from bidder. | ||
| if err := storage.SubBalance(ctx, mu, builderSEQAddress, a.AuctionInfo.BidPrice); err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| // Bid amount is sent to the Arcadia fund address. | ||
| if err := storage.AddBalance(ctx, mu, ArcadiaFundAddress(), a.AuctionInfo.BidPrice, true); err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| // Store bid information. | ||
| if err := storage.StoreArcadiaBidInfo(ctx, mu, a.AuctionInfo.EpochNumber, a.AuctionInfo.BidPrice, a.BuilderPublicKey, a.BuilderSignature); err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| return nil, nil | ||
| } | ||
|
|
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| func (*Auction) ComputeUnits(codec.Address, chain.Rules) uint64 { | ||
| return AuctionComputeUnits | ||
| } | ||
|
|
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| func (a *Auction) Size() int { | ||
| return 2*consts.Uint64Len + bls.PublicKeyLen + bls.SignatureLen + codec.AddressLen | ||
| } | ||
|
|
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| func (a *Auction) Marshal(p *codec.Packer) { | ||
| MarshalAuctionInfo(p, &a.AuctionInfo) | ||
| p.PackFixedBytes(a.BuilderPublicKey) | ||
| p.PackFixedBytes(a.BuilderSignature) | ||
| } | ||
|
|
||
| func UnmarshalAuction(p *codec.Packer) (chain.Action, error) { | ||
| var auction Auction | ||
| auctionInfo, err := UnmarshalAnchorInfo(p) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| auction.AuctionInfo = *auctionInfo | ||
| p.UnpackFixedBytes(bls.PublicKeyLen, &auction.BuilderPublicKey) | ||
| p.UnpackFixedBytes(bls.SignatureLen, &auction.BuilderSignature) | ||
| return &auction, nil | ||
| } | ||
|
|
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| func (*Auction) ValidRange(chain.Rules) (int64, int64) { | ||
| // Returning -1, -1 means that the action is always valid. | ||
| return -1, -1 | ||
| } | ||
|
|
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| func (*Auction) NMTNamespace() []byte { | ||
| return DefaultNMTNamespace | ||
| } | ||
|
|
||
| func (*Auction) UseFeeMarket() bool { | ||
| return false | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| package actions | ||
|
|
||
| import ( | ||
| "github.com/AnomalyFi/hypersdk/chain" | ||
| "github.com/AnomalyFi/hypersdk/codec" | ||
| ) | ||
|
|
||
| func IsWhiteListed(rules chain.Rules, actor codec.Address) bool { | ||
| whitelistedAddressesB, _ := rules.FetchCustom("whitelisted.Addresses") | ||
| whitelistedAddresses := whitelistedAddressesB.([]codec.Address) | ||
| return ContainsAddress(whitelistedAddresses, actor) | ||
| } | ||
|
|
||
| func ContainsAddress(addrs []codec.Address, addr codec.Address) bool { | ||
| for _, a := range addrs { | ||
| if a == addr { | ||
| return true | ||
| } | ||
| } | ||
| return false | ||
| } | ||
|
|
||
| func ArcadiaFundAddress() codec.Address { | ||
| b := make([]byte, 33) | ||
| b[33] = 0x1 | ||
| addr, _ := codec.ToAddress(b) | ||
| return addr | ||
| } | ||
|
|
||
| func MarshalAuctionInfo(p *codec.Packer, info *AuctionInfo) { | ||
| p.PackUint64(info.EpochNumber) | ||
| p.PackUint64(info.BidPrice) | ||
| p.PackAddress(info.BuilderSEQAddress) | ||
| } | ||
|
|
||
| func UnmarshalAnchorInfo(p *codec.Packer) (*AuctionInfo, error) { | ||
| var auctionInfo AuctionInfo | ||
| auctionInfo.EpochNumber = p.UnpackUint64(true) | ||
| auctionInfo.BidPrice = p.UnpackUint64(true) | ||
| p.UnpackAddress(&auctionInfo.BuilderSEQAddress) | ||
| if p.Err() != nil { | ||
| return nil, p.Err() | ||
| } | ||
| return &auctionInfo, nil | ||
| } |
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