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zeekay
705e38c45e
Red re-verify found the V4 AMM-spoof gate left a parallel bypass.
MEDIUM — V2/V3 AMM handlers were UNGATED: handlePairCreated, handlePoolCreated,
handleSwapV2, handleSwapV3 accepted events from ANY emitter — a parallel path to
seed phantom pairs/pools/swaps and inflate the SAME public Factory/TVL/volume
aggregates the now-gated V4 handlers (0x9999) block. Mirror the V4 gate:
- PairCreated/PoolCreated now require the canonical FactoryV2/FactoryV3 emitter
(the AMM trust root), exactly as V4 requires 0x9999.
- V2/V3 Swaps are emitted by the pair/pool, not the factory, so the gate is
"is the emitter a pool the canonical factory created?" (isKnownPool). The
factory authorizes a pool; only that pool's Swaps are honored. A rogue
factory's PairCreated is rejected, so its pools are never registered, so its
Swaps are rejected — the whole parallel path is closed.
- Pair/pool keys lower-cased at seed so the Swap-side lookup is RPC-casing safe.
- Factory addresses configurable (Config.FactoryV2/V3 + FACTORY_V2/V3 env),
default to canonical Lux mainnet (LuxMainnet.Factory{V2,V3}); main wires env.
INFO — the per-namespace resolver limit lacked the `if limit < 1 { limit = 100 }`
floor that resolvers/dex has, so a negative/zero `first` flowed to ListByType
(`first:-1` = "no limit" in SQLite — an unbounded scan). Brought every pl()/
parseLimit() copy to the dex-canonical body (floor <1->100 + cap 1000); fhe and
platform also gained the previously-missing 1000 cap. All namespaces now identical.
Tests (go test ./...): indexer + resolvers/{dex,exchange,fhe,platform} green.
- TestHandleV2_RejectsNonFactory, TestHandleV3_RejectsNonFactory: rogue
PairCreated/PoolCreated/Swap seeds nothing and does not inflate the factory
aggregate; the canonical-source event IS honored end-to-end.
- TestPL_ClampsFirst / TestParseLimit_ClampsFirst (exchange/fhe/platform):
negative/zero floored to 100, capped at 1000.
91 lines
3.4 KiB
Go
91 lines
3.4 KiB
Go
// Package mpc provides resolvers for the M-Chain (MPC coordination VM).
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//
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// Indexes: threshold signing sessions (CGGMP21 ECDSA, FROST EdDSA),
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// keygen sessions, signer sets, presignatures, signing requests.
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//
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// Entities: SigningSession, KeygenSession, SignerSet, Presignature, SignRequest
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package mpc
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import (
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"context"
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"fmt"
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"github.com/luxfi/graph/storage"
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)
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type ResolverFunc = func(context.Context, *storage.Store, map[string]interface{}) (interface{}, error)
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func Register(resolvers map[string]ResolverFunc) {
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resolvers["signingSession"] = resolveSigningSession
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resolvers["signingSessions"] = resolveSigningSessions
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resolvers["keygenSession"] = resolveKeygenSession
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resolvers["keygenSessions"] = resolveKeygenSessions
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resolvers["signerSet"] = resolveSignerSet
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resolvers["signerSets"] = resolveSignerSets
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resolvers["presignature"] = resolvePresignature
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resolvers["presignatures"] = resolvePresignatures
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resolvers["signRequest"] = resolveSignRequest
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resolvers["signRequests"] = resolveSignRequests
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resolvers["mpcStats"] = resolveMPCStats
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}
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func resolveSigningSession(_ context.Context, s *storage.Store, args map[string]interface{}) (interface{}, error) {
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if id, ok := args["id"]; ok {
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return s.GetByType("SigningSession", fmt.Sprint(id))
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}
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return nil, fmt.Errorf("signingSession requires id")
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}
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func resolveSigningSessions(_ context.Context, s *storage.Store, args map[string]interface{}) (interface{}, error) {
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return s.ListByType("SigningSession", pl(args))
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}
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func resolveKeygenSession(_ context.Context, s *storage.Store, args map[string]interface{}) (interface{}, error) {
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if id, ok := args["id"]; ok {
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return s.GetByType("KeygenSession", fmt.Sprint(id))
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}
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return nil, fmt.Errorf("keygenSession requires id")
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}
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func resolveKeygenSessions(_ context.Context, s *storage.Store, args map[string]interface{}) (interface{}, error) {
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return s.ListByType("KeygenSession", pl(args))
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}
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func resolveSignerSet(_ context.Context, s *storage.Store, args map[string]interface{}) (interface{}, error) {
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if id, ok := args["id"]; ok {
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return s.GetByType("SignerSet", fmt.Sprint(id))
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}
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return nil, fmt.Errorf("signerSet requires id")
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}
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func resolveSignerSets(_ context.Context, s *storage.Store, args map[string]interface{}) (interface{}, error) {
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return s.ListByType("SignerSet", pl(args))
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}
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func resolvePresignature(_ context.Context, s *storage.Store, args map[string]interface{}) (interface{}, error) {
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if id, ok := args["id"]; ok {
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return s.GetByType("Presignature", fmt.Sprint(id))
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}
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return nil, fmt.Errorf("presignature requires id")
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}
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func resolvePresignatures(_ context.Context, s *storage.Store, args map[string]interface{}) (interface{}, error) {
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return s.ListByType("Presignature", pl(args))
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}
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func resolveSignRequest(_ context.Context, s *storage.Store, args map[string]interface{}) (interface{}, error) {
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if id, ok := args["id"]; ok {
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return s.GetByType("SignRequest", fmt.Sprint(id))
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}
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return nil, fmt.Errorf("signRequest requires id")
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}
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func resolveSignRequests(_ context.Context, s *storage.Store, args map[string]interface{}) (interface{}, error) {
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return s.ListByType("SignRequest", pl(args))
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}
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func resolveMPCStats(_ context.Context, s *storage.Store, _ map[string]interface{}) (interface{}, error) {
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return s.GetByType("MPCStats", "1")
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}
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func pl(args map[string]interface{}) int {
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limit := 100
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if l, ok := args["first"]; ok {
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fmt.Sscanf(fmt.Sprint(l), "%d", &limit)
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}
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if limit < 1 {
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limit = 100
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}
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return min(limit, 1000)
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}
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