factor verified providers into bidding tx flow

docs/static/openapi.yml

@@ -30826,6 +30826,8 @@ definitions:
         type: string
   colinear.colinearcore.MsgNewBidResponse:
     type: object
+  colinear.colinearcore.MsgUnlockAllFundsResponse:
+    type: object
   colinear.colinearcore.MsgUnlockFundsResponse:
     type: object
   colinear.colinearcore.NextAuction:

go.mod

@@ -5,6 +5,7 @@ go 1.18
 require (
 	github.com/cosmos/cosmos-sdk v0.45.5
 	github.com/cosmos/ibc-go/v3 v3.0.1
+	github.com/dgraph-io/badger/v2 v2.2007.2
 	github.com/dgraph-io/badger/v3 v3.2103.2
 	github.com/gogo/protobuf v1.3.3
 	github.com/golang/protobuf v1.5.2
@@ -18,6 +19,7 @@ require (
 	github.com/tendermint/spn v0.2.1-0.20220708132853-26a17f03c072
 	github.com/tendermint/tendermint v0.34.19
 	github.com/tendermint/tm-db v0.6.7
+	golang.org/x/crypto v0.0.0-20220112180741-5e0467b6c7ce
 	google.golang.org/genproto v0.0.0-20220822174746-9e6da59bd2fc
 	google.golang.org/grpc v1.48.0
 	gopkg.in/yaml.v2 v2.4.0
@@ -55,7 +57,6 @@ require (
 	github.com/danieljoos/wincred v1.0.2 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/desertbit/timer v0.0.0-20180107155436-c41aec40b27f // indirect
-	github.com/dgraph-io/badger/v2 v2.2007.2 // indirect
 	github.com/dgraph-io/ristretto v0.1.0 // indirect
 	github.com/dgryski/go-farm v0.0.0-20200201041132-a6ae2369ad13 // indirect
 	github.com/docker/docker v20.10.7+incompatible // indirect
@@ -159,7 +160,6 @@ require (
 	github.com/zondax/hid v0.9.0 // indirect
 	go.etcd.io/bbolt v1.3.6 // indirect
 	go.opencensus.io v0.23.0 // indirect
-	golang.org/x/crypto v0.0.0-20220112180741-5e0467b6c7ce // indirect
 	golang.org/x/mod v0.6.0-dev.0.20220106191415-9b9b3d81d5e3 // indirect
 	golang.org/x/net v0.0.0-20220624214902-1bab6f366d9e // indirect
 	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect

proto/colinearcore/tx.proto

@@ -22,6 +22,9 @@ message MsgNewAuction {
   string ceiling = 4;
   string denom = 5;
   uint64 leaseEnd = 6;
+  // verified providers just specifies who's allowed to bid on the lease auction.
+  // STORED IN MEMORY. DOES NOT GET WRITTEN TO CHAIN STATE.
+  repeated string verifiedProviders = 7;
 }
 
 message MsgNewAuctionResponse {

x/colinearcore/auctionconfig/config.go

@@ -12,6 +12,10 @@ const (
 	MinLeasePeriod = 3_600     // 1 hour
 	MaxLeasePeriod = 8_035_200 // 3 months
 
+	// Maximum number of verified providers; this is to prevent buffer overflow
+	// attacks since provider list is not committed to chain state and costs 0 gas
+	MaxVerifiedProviders = 1000
+
 	// Minimum required staked CLR to be a provider (i.e. to bid)
 	// 500 CLR
 	ProviderMinLockedUClr = 500_000_000

x/colinearcore/client/cli/tx_new_auction.go

@@ -3,6 +3,7 @@ package cli
 import (
 	"strconv"
 
+	"colinear/x/colinearcore/auctionconfig"
 	"colinear/x/colinearcore/types"
 
 	"github.com/cosmos/cosmos-sdk/client"
@@ -15,9 +16,10 @@ var _ = strconv.Itoa(0)
 
 func CmdNewAuction() *cobra.Command {
 	cmd := &cobra.Command{
-		Use:   "new-auction [name] [description] [ceiling] [denom] [end date]",
+		Use:   "new-auction [name] [description] [ceiling] [denom] [end date] [verified providers (separated by spaces)...]",
 		Short: "Broadcast message newAuction",
-		Args:  cobra.ExactArgs(5),
+		// Args:  cobra.ExactArgs(5),
+		Args: cobra.RangeArgs(5, auctionconfig.MaxVerifiedProviders+5),
 		RunE: func(cmd *cobra.Command, args []string) (err error) {
 			argName := args[0]
 			argDescription := args[1]
@@ -25,6 +27,12 @@ func CmdNewAuction() *cobra.Command {
 			argDenom := args[3]
 			argLeaseEnd := args[4]
 
+			verifiedProviders := []string{}
+			if len(args) >= 6 {
+				// set to remaining arguments
+				verifiedProviders = args[5:]
+			}
+
 			clientCtx, err := client.GetClientTxContext(cmd)
 			if err != nil {
 				return err
@@ -43,6 +51,7 @@ func CmdNewAuction() *cobra.Command {
 				argCeiling,
 				argDenom,
 				uint64(le),
+				verifiedProviders,
 			)
 			if err := msg.ValidateBasic(); err != nil {
 				return err

x/colinearcore/keeper/auction_state.go

@@ -24,7 +24,7 @@ func (k Keeper) AuctionIsExpired(ctx sdk.Context, auctionId string) (bool, error
 }
 
 func (k Keeper) FinalizeExpiredAuctions(ctx sdk.Context) {
-	memdb.BidDB.ForEachAuction(func(auctionId string) error {
+	memdb.AuctionDB.ForEachAuctionBidList(func(auctionId string) error {
 		auction, found := k.GetAuction(ctx, auctionId)
 		// make sure the auction exists on-chain
 		if !found {
@@ -33,7 +33,7 @@ func (k Keeper) FinalizeExpiredAuctions(ctx sdk.Context) {
 
 		if uint64(ctx.BlockHeight()) >= auction.Deadline {
 			var err error
-			auction.Best, err = memdb.BidDB.GetLowestBid(auctionId)
+			auction.Best, err = memdb.AuctionDB.GetLowestBid(auctionId)
 			if err != nil {
 				return errors.Errorf("could not get highest bid for auction %s: %s", auctionId, err)
 			}
@@ -42,10 +42,14 @@ func (k Keeper) FinalizeExpiredAuctions(ctx sdk.Context) {
 			auction.Remaining = auction.Best.Amount
 
 			// clear auction
-			if err := memdb.BidDB.ClearAuction(auctionId); err != nil {
+			if err := memdb.AuctionDB.ClearAuctionBids(auctionId); err != nil {
 				return errors.Errorf("failed to clear auction from memcache: %s", err)
 			}
 
+			if err := memdb.AuctionDB.ClearVerifiedProviders(auctionId); err != nil {
+				return errors.Errorf("failed to clear verified providers for auction %s: %s", auctionId, err)
+			}
+
 			// pay out unpaid remainder to auction creator
 			ceiling := new(big.Int)
 			ceiling.SetString(auction.Ceiling, 10)

x/colinearcore/keeper/grpc_query_auction_bids.go

@@ -28,7 +28,7 @@ func (k Keeper) AuctionBids(goCtx context.Context, req *types.QueryAuctionBidsRe
 		return nil, fmt.Errorf("auction %s is already finalized", req.Index)
 	}
 
-	bids, err := memdb.BidDB.GetBids(auction.Index)
+	bids, err := memdb.AuctionDB.GetBids(auction.Index)
 	if err != nil {
 		return nil, fmt.Errorf("failed to get bids for auction %s: %s", auction.Index, err)
 	}

x/colinearcore/keeper/msg_server_new_auction.go

@@ -49,6 +49,22 @@ found:
 		)
 	}
 
+	senderAddr, err := sdk.AccAddressFromBech32(msg.Creator)
+	if err != nil {
+		return nil, fmt.Errorf("sender address `%s` format invalid (bech32 required)", msg.Creator)
+	}
+
+	if len(msg.VerifiedProviders) > auctionconfig.MaxVerifiedProviders {
+		return nil, fmt.Errorf("must submit no more than %d verified providers (got %d)", auctionconfig.MaxVerifiedProviders, len(msg.VerifiedProviders))
+	}
+
+	bech32Len := len("colinear") + 39
+	for i, provider := range msg.VerifiedProviders {
+		if len(provider) > bech32Len {
+			return nil, fmt.Errorf("verified provider address %s (#%d) must be no longer than a colinear bech32 address (%d)", provider, i, bech32Len)
+		}
+	}
+
 	auction := types.Auction{
 		Index:       index,
 		Name:        msg.Name,
@@ -67,11 +83,6 @@ found:
 		// Remaining:  "0",
 	}
 
-	senderAddr, err := sdk.AccAddressFromBech32(msg.Creator)
-	if err != nil {
-		return nil, fmt.Errorf("sender address `%s` format invalid (bech32 required)", msg.Creator)
-	}
-
 	spendable := k.bank.SpendableCoins(ctx, senderAddr)
 	// if balance does not exceed or equal proposed auction ceiling...
 	ceiling := new(big.Int)

x/colinearcore/keeper/msg_server_new_bid.go

@@ -45,6 +45,21 @@ func (k msgServer) NewBid(goCtx context.Context, msg *types.MsgNewBid) (*types.M
 		return nil, fmt.Errorf("auction %s is expired", msg.AuctionIndex)
 	}
 
+	if verProvs, err := memdb.AuctionDB.GetVerifiedProviders(msg.AuctionIndex); err == nil {
+		if len(verProvs) == 0 {
+			goto bidderVerified
+		} else {
+			for _, provider := range verProvs {
+				if msg.Creator == provider {
+					goto bidderVerified
+				}
+			}
+			return nil, fmt.Errorf("bid sender is not verified by the creator of auction %s", auction.Index)
+		}
+	}
+
+bidderVerified:
+
 	amt := new(big.Int)
 	amt, ok = amt.SetString(msg.Amount, 10)
 	if !ok {
@@ -60,7 +75,7 @@ func (k msgServer) NewBid(goCtx context.Context, msg *types.MsgNewBid) (*types.M
 		return nil, fmt.Errorf("bid amount cannot be greater than auction price ceiling (%s)", auction.Ceiling)
 	}
 
-	lowestBid, err := memdb.BidDB.GetLowestBid(msg.AuctionIndex)
+	lowestBid, err := memdb.AuctionDB.GetLowestBid(msg.AuctionIndex)
 	// we manually handle KeyNotFound in GetHighestBid, so should return (nil, nil) if not found
 	if err != nil {
 		return nil, fmt.Errorf("failed to get lowest bid: %s", reflect.TypeOf(err))
@@ -85,7 +100,7 @@ func (k msgServer) NewBid(goCtx context.Context, msg *types.MsgNewBid) (*types.M
 		Owner:  msg.Creator,
 	}
 
-	if err := memdb.BidDB.AddBid(msg.AuctionIndex, bid); err != nil {
+	if err := memdb.AuctionDB.AddBid(msg.AuctionIndex, bid); err != nil {
 		return nil, fmt.Errorf("failed to add bid: %s", err)
 	}
 

x/colinearcore/module.go

@@ -113,7 +113,7 @@ func NewAppModule(
 ) AppModule {
 
 	// initialize in-memory database
-	memdb.BidDB.Mount()
+	memdb.AuctionDB.Mount()
 
 	return AppModule{
 		AppModuleBasic: NewAppModuleBasic(cdc),

x/colinearcore/simulation/lock_funds.go

@@ -5,6 +5,7 @@ import (
 
 	"colinear/x/colinearcore/keeper"
 	"colinear/x/colinearcore/types"
+
 	"github.com/cosmos/cosmos-sdk/baseapp"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	simtypes "github.com/cosmos/cosmos-sdk/types/simulation"

x/colinearcore/types/message_new_auction.go

@@ -9,7 +9,7 @@ const TypeMsgNewAuction = "new_auction"
 
 var _ sdk.Msg = &MsgNewAuction{}
 
-func NewMsgNewAuction(creator string, name string, description string, ceiling string, denom string, leaseEnd uint64) *MsgNewAuction {
+func NewMsgNewAuction(creator string, name string, description string, ceiling string, denom string, leaseEnd uint64, vProviders []string) *MsgNewAuction {
 	return &MsgNewAuction{
 		Creator:           creator,
 		Name:              name,
@@ -17,6 +17,7 @@ func NewMsgNewAuction(creator string, name string, description string, ceiling s
 		Ceiling:           ceiling,
 		Denom:             denom,
 		LeaseEnd:          leaseEnd,
+		VerifiedProviders: vProviders,
 	}
 }
 

x/colinearcore/types/tx.pb.go

@@ -34,6 +34,9 @@ type MsgNewAuction struct {
 	Ceiling     string `protobuf:"bytes,4,opt,name=ceiling,proto3" json:"ceiling,omitempty"`
 	Denom       string `protobuf:"bytes,5,opt,name=denom,proto3" json:"denom,omitempty"`
 	LeaseEnd    uint64 `protobuf:"varint,6,opt,name=leaseEnd,proto3" json:"leaseEnd,omitempty"`
+	// verified providers just specifies who's allowed to bid on the lease auction.
+	// STORED IN MEMORY. DOES NOT GET WRITTEN TO CHAIN STATE.
+	VerifiedProviders []string `protobuf:"bytes,7,rep,name=verifiedProviders,proto3" json:"verifiedProviders,omitempty"`
 }
 
 func (m *MsgNewAuction) Reset()         { *m = MsgNewAuction{} }
@@ -111,6 +114,13 @@ func (m *MsgNewAuction) GetLeaseEnd() uint64 {
 	return 0
 }
 
+func (m *MsgNewAuction) GetVerifiedProviders() []string {
+	if m != nil {
+		return m.VerifiedProviders
+	}
+	return nil
+}
+
 type MsgNewAuctionResponse struct {
 	AuctionId string `protobuf:"bytes,1,opt,name=auctionId,proto3" json:"auctionId,omitempty"`
 }
@@ -523,36 +533,37 @@ func init() {
 func init() { proto.RegisterFile("colinearcore/tx.proto", fileDescriptor_0c3854a2a9bba3b4) }
 
 var fileDescriptor_0c3854a2a9bba3b4 = []byte{
-	// 449 bytes of a gzipped FileDescriptorProto
+	// 476 bytes of a gzipped FileDescriptorProto
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-	0xda, 0xe7, 0x00, 0x95, 0x53, 0x7f, 0xd0, 0xd6, 0x59, 0x75, 0x73, 0x9f, 0x7c, 0xdb, 0x19, 0xca,
+	0x8c, 0xc9, 0xb9, 0xd7, 0xc0, 0x64, 0xf0, 0x11, 0xec, 0x56, 0xa7, 0x78, 0xf7, 0xf2, 0xda, 0x8a,
-	0x76, 0x67, 0x28, 0x3f, 0x76, 0x86, 0xf2, 0x65, 0x6f, 0x74, 0xb6, 0x7b, 0xa3, 0xf3, 0x7d, 0x6f,
+	0xcd, 0x39, 0x69, 0x64, 0x33, 0x4d, 0x12, 0xd8, 0xff, 0x6b, 0x98, 0xc1, 0x26, 0x40, 0xe9, 0x74,
-	0x74, 0xde, 0xde, 0xaa, 0x08, 0xf3, 0xcd, 0xbc, 0xf9, 0x97, 0xfa, 0x9c, 0x50, 0xf1, 0x41, 0xcd,
+	0xee, 0x37, 0x75, 0x96, 0xdd, 0x86, 0x8f, 0xbf, 0x2d, 0x5c, 0xeb, 0x7c, 0xe1, 0x5a, 0x3f, 0x17,
-	0xff, 0x54, 0x8f, 0x7e, 0x05, 0x00, 0x00, 0xff, 0xff, 0x20, 0xbb, 0xf4, 0x20, 0xc2, 0x04, 0x00,
+	0xae, 0xf5, 0x75, 0xe9, 0xb6, 0xce, 0x97, 0x6e, 0xeb, 0xfb, 0xd2, 0x6d, 0xbd, 0xbd, 0x55, 0x12,
-	0x00,
+	0x06, 0xf3, 0x41, 0xfd, 0x4d, 0xfb, 0x32, 0x45, 0xfd, 0xa1, 0x9b, 0xbd, 0x6b, 0x0f, 0x7f, 0x07,
+	0x00, 0x00, 0xff, 0xff, 0xdf, 0x9d, 0x09, 0x8c, 0xf0, 0x04, 0x00, 0x00,
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -799,6 +810,15 @@ func (m *MsgNewAuction) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
+	if len(m.VerifiedProviders) > 0 {
+		for iNdEx := len(m.VerifiedProviders) - 1; iNdEx >= 0; iNdEx-- {
+			i -= len(m.VerifiedProviders[iNdEx])
+			copy(dAtA[i:], m.VerifiedProviders[iNdEx])
+			i = encodeVarintTx(dAtA, i, uint64(len(m.VerifiedProviders[iNdEx])))
+			i--
+			dAtA[i] = 0x3a
+		}
+	}
 	if m.LeaseEnd != 0 {
 		i = encodeVarintTx(dAtA, i, uint64(m.LeaseEnd))
 		i--
@@ -1152,6 +1172,12 @@ func (m *MsgNewAuction) Size() (n int) {
 	if m.LeaseEnd != 0 {
 		n += 1 + sovTx(uint64(m.LeaseEnd))
 	}
+	if len(m.VerifiedProviders) > 0 {
+		for _, s := range m.VerifiedProviders {
+			l = len(s)
+			n += 1 + l + sovTx(uint64(l))
+		}
+	}
 	return n
 }
 
@@ -1486,6 +1512,38 @@ func (m *MsgNewAuction) Unmarshal(dAtA []byte) error {
 					break
 				}
 			}
+		case 7:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field VerifiedProviders", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowTx
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthTx
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthTx
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.VerifiedProviders = append(m.VerifiedProviders, string(dAtA[iNdEx:postIndex]))
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipTx(dAtA[iNdEx:])