chore: add gmgn and remove entry contract

pkg/shreder/tx.go

@@ -45,7 +45,6 @@ type TxSignal struct {
 	IsToken2022   bool            `json:"is_token2022"`
 	IsMayhemMode  bool            `json:"is_mayhem_mode"`
 	TxFee         decimal.Decimal `json:"tx_fee"`
-	EntryContract string          `json:"entry_contract"`
 
 	ExactSOL bool `json:"exact_in"`
 

pkg/shreder/txparser.go

@@ -23,42 +23,30 @@ const (
 // program ids
 var (
 	pumpProgramID = solana.MustPublicKeyFromBase58("6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P")
-	pumpProgramIDString = pumpProgramID.String()
 	// has no sell function with pump and pump.amm program
 	azczProgramID = solana.MustPublicKeyFromBase58("AzcZqCRUQgKEg5FTAgY7JacATABEYCEfMbjXEzspLYFB")
-	azczProgramIDString = azczProgramID.String()
 
 	// only buy function with pump program
 	f5tfProgramID = solana.MustPublicKeyFromBase58("F5tfvbLog9VdGUPqBDTT8rgXvTTcq7e5UiGnupL1zvBq")
-	f5tfProgramIDString = f5tfProgramID.String()
 	// only pump.fun function
 	photonProgramID = solana.MustPublicKeyFromBase58("BSfD6SHZigAfDWSjzD5Q41jw8LmKwtmjskPH9XW1mrRW")
-	photonProgramIDString = photonProgramID.String()
 
 	pumpAmmProgramID = solana.MustPublicKeyFromBase58("pAMMBay6oceH9fJKBRHGP5D4bD4sWpmSwMn52FMfXEA")
-	pumpAmmProgramIDString = pumpAmmProgramID.String()
 
 	boboProgramID = solana.MustPublicKeyFromBase58("BobogA5N2KN2GG4XN3E3rNNRw3L8H1QPXp7QLxGrNHGM")
-	boboProgramIDString = boboProgramID.String()
 
 	qtkvProgramID = solana.MustPublicKeyFromBase58("qtkvapJEvRWWrB7i5K6RaA1kvq5x3qmMKZ98ad71XQ7")
-	qtkvProgramIDString = qtkvProgramID.String()
 
 	// only buy function with pump program
 	fjszProgramID = solana.MustPublicKeyFromBase58("FJsZbftBqRLfF7uqUKpm4s2goDr6xsQ5Q3mN7AFJB6hK")
-	fjszProgramIDString = fjszProgramID.String()
 
 	flasProgramID = solana.MustPublicKeyFromBase58("FLASHX8DrLbgeR8FcfNV1F5krxYcYMUdBkrP1EPBtxB9")
-	flasProgramIDString = flasProgramID.String()
 
 	terminalProgramID = solana.MustPublicKeyFromBase58("term9YPb9mzAsABaqN71A4xdbxHmpBNZavpBiQKZzN3")
-	terminalProgramIDString = terminalProgramID.String()
 
 	jupiterV6ProgramID = solana.MustPublicKeyFromBase58("JUP6LkbZbjS1jKKwapdHNy74zcZ3tLUZoi5QNyVTaV4")
-	jupiterV6ProgramIDString = jupiterV6ProgramID.String()
 
 	gmgnProgramID = solana.MustPublicKeyFromBase58("GMgnVFR8Jb39LoXsEVzb3DvBy3ywCmdmJquHUy1Lrkqb")
-	gmgnProgramIDString = gmgnProgramID.String()
 )
 
 type AccountNotFoundError struct {
@@ -108,6 +96,8 @@ var (
 	terminalBuyTokensIX     = []byte{0xa6, 0x54, 0x14, 0x96, 0x9f, 0x77, 0x59, 0xca}
 	terminalSellTokensIX    = []byte{0xbe, 0x84, 0xa2, 0x96, 0x93, 0x7c, 0xf8, 0x6b}
 	terminalAmmSellTokensIX = []byte{0x40, 0x64, 0x97, 0xb9, 0x16, 0xfa, 0xec, 0xb1}
+
+	gmgnBuyTokensIX = []byte{0x66, 0x06, 0x3d, 0x12, 0x01, 0xda, 0xeb, 0xea}
 )
 
 type compiledInstruction struct {
@@ -312,50 +302,53 @@ func ParseTransaction(update *SubscribeUpdateTransaction, loader *AddressTables,
 		switch programID {
 		case pumpProgramID:
 			txRes, err := parsePumpInstruction(versioned, i)
-			parsed = appendParsed(now, parsed, txRes, err, txHash, "pump", pumpProgramIDString)
+			parsed = appendParsed(now, parsed, txRes, err, txHash, "pump")
 		case azczProgramID:
 			txRes, err := parseAzczInstruction(versioned, i)
-			parsed = appendParsed(now, parsed, txRes, err, txHash, "azcz", azczProgramIDString)
+			parsed = appendParsed(now, parsed, txRes, err, txHash, "azcz")
 		case f5tfProgramID:
 			txRes, err := parseF5tfInstruction(versioned, i)
-			parsed = appendParsed(now, parsed, txRes, err, txHash, "f5tf", f5tfProgramIDString)
+			parsed = appendParsed(now, parsed, txRes, err, txHash, "f5tf")
 		case flasProgramID:
 			txRes, err := parseFlasInstruction(versioned, i)
-			parsed = appendParsed(now, parsed, txRes, err, txHash, "flas", flasProgramIDString)
+			parsed = appendParsed(now, parsed, txRes, err, txHash, "flas")
 		case photonProgramID:
 			txRes, err := parsePhotonInstruction(versioned, i)
-			parsed = appendParsed(now, parsed, txRes, err, txHash, "photon", photonProgramIDString)
+			parsed = appendParsed(now, parsed, txRes, err, txHash, "photon")
 		case pumpAmmProgramID:
 			txRes, err := parsePumpAmmInstruction(versioned, i)
-			parsed = appendParsed(now, parsed, txRes, err, txHash, "pumpamm", pumpAmmProgramIDString)
+			parsed = appendParsed(now, parsed, txRes, err, txHash, "pumpamm")
 		case boboProgramID:
 			txRes, err := parseBoboInstruction(versioned, i)
-			parsed = appendParsed(now, parsed, txRes, err, txHash, "bobo", boboProgramIDString)
+			parsed = appendParsed(now, parsed, txRes, err, txHash, "bobo")
 		case qtkvProgramID:
 			txRes, err := parseQtkvInstruction(versioned, i)
-			parsed = appendParsed(now, parsed, txRes, err, txHash, "qtkv", qtkvProgramIDString)
+			parsed = appendParsed(now, parsed, txRes, err, txHash, "qtkv")
 		case fjszProgramID:
 			txRes, err := parseFjszInstruction(versioned, i)
-			parsed = appendParsed(now, parsed, txRes, err, txHash, "fjsz", fjszProgramIDString)
+			parsed = appendParsed(now, parsed, txRes, err, txHash, "fjsz")
 		case terminalProgramID:
 			txRes, err := parseTermInstruction(versioned, i)
-			parsed = appendParsed(now, parsed, txRes, err, txHash, "terminal", terminalProgramIDString)
+			parsed = appendParsed(now, parsed, txRes, err, txHash, "terminal")
 		case jupiterV6ProgramID:
 			txRes, err := parseJupiterV6Instruction(versioned, i)
-			parsed = appendParsed(now, parsed, txRes, err, txHash, "jupiterv6", jupiterV6ProgramIDString)
+			parsed = appendParsed(now, parsed, txRes, err, txHash, "jupiterv6")
 		case okxDexRouteV2ProgramID:
 			txRes, err := parseOkxDexRouteV2Instruction(versioned, i)
-			parsed = appendParsed(now, parsed, txRes, err, txHash, "okxdexroutev2", okxDexRouteV2ProgramIDString)
+			parsed = appendParsed(now, parsed, txRes, err, txHash, "okxdexroutev2")
 		case dflowProgramID:
 			txRes, err := parseDFlowInstruction(versioned, i)
-			parsed = appendParsed(now, parsed, txRes, err, txHash, "dflow", dflowProgramString)
+			parsed = appendParsed(now, parsed, txRes, err, txHash, "dflow")
+		case gmgnProgramID:
+			txRes, err := parseGMGNInstruction(versioned, i)
+			parsed = appendParsed(now, parsed, txRes, err, txHash, "gmgn")
 		}
 	}
 
 	return parsed
 }
 
-func appendParsed(start time.Time, list []*TxSignal, parsed *TxSignal, err error, txHash [64]byte, label string, entryContract string) []*TxSignal {
+func appendParsed(start time.Time, list []*TxSignal, parsed *TxSignal, err error, txHash [64]byte, label string) []*TxSignal {
 	if err != nil {
 		if !strings.HasPrefix(err.Error(), "account index") {
 			logger.Debug("txparser: failed to parse", "label", label, "instruction", err, "tx_hash", base58.Encode(txHash[:]))
@@ -363,7 +356,6 @@ func appendParsed(start time.Time, list []*TxSignal, parsed *TxSignal, err error
 		return list
 	}
 	if parsed != nil {
-		parsed.EntryContract = entryContract
 		parsed.Label = label
 		if !start.IsZero() {
 			parsed.ParseEnd = time.Now()
@@ -1007,6 +999,66 @@ func parseFlasBuy(tx *versionedTransaction, instructionIndex int) (*TxSignal, er
 	}, nil
 }
 
+func parseGMGNInstruction(tx *versionedTransaction, instructionIndex int) (*TxSignal, error) {
+	msg := tx.Message
+	if instructionIndex >= len(msg.Instructions) {
+		return nil, fmt.Errorf("instruction index out of bounds")
+	}
+
+	instruction := msg.Instructions[instructionIndex]
+	if len(instruction.Data) == 0 {
+		return nil, fmt.Errorf("data is empty")
+	}
+	if len(instruction.Data) < 8 {
+		return nil, nil
+	}
+
+	if matchMethod(instruction.Data, gmgnBuyTokensIX) {
+		return parseGMGNBuy(tx, &instruction)
+	}
+	return nil, nil
+}
+
+func parseGMGNBuy(tx *versionedTransaction, instruction *compiledInstruction) (*TxSignal, error) {
+	if len(instruction.Accounts) < 8 {
+		return nil, fmt.Errorf("accounts too short")
+	}
+	if len(instruction.Data) < 24 {
+		return nil, fmt.Errorf("data too short for gmgn buy args, len=%d", len(instruction.Data))
+	}
+
+	staticKeys := tx.Message.StaticAccountKeys
+	mint, err := getStaticKey(staticKeys, int(instruction.Accounts[2]))
+	if err != nil {
+		return nil, err
+	}
+	user, err := getStaticKey(staticKeys, int(instruction.Accounts[6]))
+	if err != nil {
+		return nil, err
+	}
+
+	solAmount := binary.LittleEndian.Uint64(instruction.Data[8:16])
+	tokenAmount := binary.LittleEndian.Uint64(instruction.Data[16:24])
+
+	return &TxSignal{
+		TxHash:             tx.Signatures[0].String(),
+		Label:              "gmgn",
+		Maker:              user.String(),
+		Token0Address:      mint.String(),
+		Token1Address:      wsolMint,
+		Token0Amount:       formatTokenAmount(tokenAmount),
+		Token1Amount:       formatSolAmount(solAmount),
+		Program:            "Pump",
+		Event:              "buy",
+		IsToken2022:        false,
+		IsMayhemMode:       false,
+		ExactSOL:           true,
+		Block:              tx.Block,
+		Token0AmountUint64: tokenAmount,
+		Token1AmountUint64: solAmount,
+	}, nil
+}
+
 func parsePhotonInstruction(tx *versionedTransaction, instructionIndex int) (*TxSignal, error) {
 	msg := tx.Message
 	if instructionIndex >= len(msg.Instructions) {