solana-sniper-bot/filters/renounced.filter.ts

import { Filter, FilterResult } from "./pool-filters";
import { MintLayout } from "@solana/spl-token";
import { Connection } from "@solana/web3.js";
import { LiquidityPoolKeysV4 } from "@raydium-io/raydium-sdk";
import { logger } from "../helpers";

export class RenouncedFreezeFilter implements Filter {
	private readonly errorMessage: string[] = [];
	private cachedResult: FilterResult | undefined = undefined;

	constructor(
		private readonly connection: Connection,
		private readonly checkRenounced: boolean,
		private readonly checkFreezable: boolean,
	) {
		if (this.checkRenounced) {
			this.errorMessage.push("mint");
		}

		if (this.checkFreezable) {
			this.errorMessage.push("freeze");
		}
	}

	async execute(poolKeys: LiquidityPoolKeysV4): Promise<FilterResult> {
		if (this.cachedResult) {
			return this.cachedResult;
		}

		try {
			const accountInfo = await this.connection.getAccountInfo(poolKeys.baseMint, this.connection.commitment);
			if (!accountInfo?.data) {
				return { ok: false, message: "RenouncedFreeze -> Failed to fetch account data" };
			}

			const deserialize = MintLayout.decode(accountInfo.data);
			const renounced = !this.checkRenounced || deserialize.mintAuthorityOption === 0;
			const freezable = !this.checkFreezable || deserialize.freezeAuthorityOption !== 0;
			const ok = renounced && !freezable;
			const message: string[] = [];

			if (!renounced) {
				message.push("mint");
			}

			if (freezable) {
				message.push("freeze");
			}

			const result = {
				ok: ok,
				message: ok ? undefined : `RenouncedFreeze -> Creator can ${message.join(" and ")} tokens`,
			};

			if (result.ok) {
				this.cachedResult = result;
			}

			return result;
		} catch (e) {
			logger.error(
				{ mint: poolKeys.baseMint },
				`RenouncedFreeze -> Failed to check if creator can ${this.errorMessage.join(" and ")} tokens`,
			);
		}

		return {
			ok: false,
			message: `RenouncedFreeze -> Failed to check if creator can ${this.errorMessage.join(" and ")} tokens`,
		};
	}
}