불변 소유권이란 무엇인가요?
Token Extensions Program의 ImmutableOwner 계정 확장 기능은 토큰 계정의
소유자를 영구적으로 만듭니다.
토큰 계정이 *rsImmutableOwner*로 초기화되면, 이후 SetAuthority 명령으로
AccountOwner 권한을 변경할 수 없습니다.
연결된 토큰 계정
Token Extensions Program을 위해 Associated Token Program을 통해 생성된
associated token account는 토큰 계정에 _rsImmutableOwner_를 자동으로
초기화합니다.
불변 소유권 계정 초기화 방법
불변 소유권 계정을 초기화하려면:
- 민트를 생성하고 초기화합니다.
- *rs
ImmutableOwner*를 위한 충분한 공간으로 토큰 계정을 생성합니다. InitializeAccount전에 토큰 계정에 *rsImmutableOwner*를 초기화합니다.- 나중에 *rs
SetAuthority*로 계정 소유자를 변경하려고 하면TokenError::ImmutableOwner오류가 발생합니다.
토큰 계정 크기 계산
기본 토큰 계정에 ImmutableOwner 확장을 더한 토큰 계정 크기를 계산합니다.
이것이 *rsCreateAccount*에서 사용되는 크기입니다.
rent 계산
ImmutableOwner 확장에 필요한 토큰 계정 크기를 사용하여 rent를 계산합니다.
토큰 계정 생성
계산된 공간과 lamport로 토큰 계정을 생성합니다.
ImmutableOwner 초기화
토큰 계정에서 ImmutableOwner 확장을 초기화합니다.
토큰 계정 초기화
동일한 트랜잭션에서 *rsInitializeAccount*를 사용하여 토큰 계정을 초기화합니다.
명령어 순서
_rsInitializeImmutableOwner_는 _rsInitializeAccount_보다 먼저 실행되어야
합니다. CreateAccount, InitializeImmutableOwner, 그리고
_rsInitializeAccount_는 동일한 트랜잭션에 포함되어야 합니다.
소스 참조
| 항목 | 설명 | 소스 |
|---|---|---|
ImmutableOwner | 토큰 계정 소유자를 불변으로 표시하는 계정 확장입니다. | 소스 |
InitializeImmutableOwner | 초기화되지 않은 토큰 계정에서 불변 소유자 확장을 초기화하는 명령어입니다. | 소스 |
process_initialize_immutable_owner | 계정에 *rsImmutableOwner*를 할당하고 초기화하는 프로세서 로직입니다. | 소스 |
SetAuthority | 토큰 계정 소유자를 포함한 권한을 변경하는 데 사용되는 기본 토큰 명령어입니다. | 소스 |
process_set_authority | 토큰 계정에 *rsImmutableOwner*가 활성화되어 있을 때 소유자 변경을 거부하는 프로세서 로직입니다. | 소스 |
Typescript
아래의 Kit 예제는 생성된 명령어를 직접 사용합니다. @solana/web3.js 및
@solana/spl-token를 사용하는 레거시 예제는 참고용으로 포함되어 있습니다.
Kit
import {lamports,createClient,generateKeyPairSigner,unwrapOption} from "@solana/kit";import { solanaRpc, rpcAirdrop } from "@solana/kit-plugin-rpc";import { generatedPayer, airdropPayer } from "@solana/kit-plugin-signer";import { getCreateAccountInstruction } from "@solana-program/system";import {AuthorityType,extension,fetchToken,getInitializeAccountInstruction,getInitializeImmutableOwnerInstruction,getInitializeMintInstruction,getMintSize,getSetAuthorityInstruction,getTokenSize,isExtension,TOKEN_2022_PROGRAM_ADDRESS} from "@solana-program/token-2022";const client = await createClient().use(generatedPayer()).use(solanaRpc({rpcUrl: "http://localhost:8899",rpcSubscriptionsUrl: "ws://localhost:8900"})).use(rpcAirdrop()).use(airdropPayer(lamports(1_000_000_000n)));const mint = await generateKeyPairSigner();const tokenAccount = await generateKeyPairSigner();const newOwner = await generateKeyPairSigner();const mintSpace = BigInt(getMintSize());const mintRent = await client.rpc.getMinimumBalanceForRentExemption(mintSpace).send();await client.sendTransaction([getCreateAccountInstruction({payer: client.payer, // Account funding the new mint account.newAccount: mint, // New mint account to create.lamports: mintRent, // Lamports funding the mint account rent.space: mintSpace, // Account size in bytes for the mint.programAddress: TOKEN_2022_PROGRAM_ADDRESS // Program that owns the mint account.}),getInitializeMintInstruction({mint: mint.address, // Mint account to initialize.decimals: 0, // Number of decimals for the token.mintAuthority: client.payer.address, // Authority allowed to mint new tokens.freezeAuthority: client.payer.address // Authority allowed to freeze token accounts.})]);const immutableOwnerExtension = extension("ImmutableOwner", {});const tokenSpace = BigInt(getTokenSize([immutableOwnerExtension]));const tokenRent = await client.rpc.getMinimumBalanceForRentExemption(tokenSpace).send();await client.sendTransaction([getCreateAccountInstruction({payer: client.payer, // Account funding the new token account.newAccount: tokenAccount, // New token account to create.lamports: tokenRent, // Lamports funding the token account rent.space: tokenSpace, // Account size in bytes for the token account plus ImmutableOwner.programAddress: TOKEN_2022_PROGRAM_ADDRESS // Program that owns the token account.}),getInitializeImmutableOwnerInstruction({account: tokenAccount.address // Token account that stores the ImmutableOwner extension.}),getInitializeAccountInstruction({account: tokenAccount.address, // Token account to initialize.mint: mint.address, // Mint for the token account.owner: client.payer.address // Owner of the token account.})]);let failure: string | undefined;try {await client.sendTransaction([getSetAuthorityInstruction({owned: tokenAccount.address, // Token account whose authority is being updated.owner: client.payer, // Current token account owner signing the instruction.authorityType: AuthorityType.AccountOwner, // Account authority field to change.newAuthority: newOwner.address // New token account owner to set.})]);} catch (error) {failure = String(error);}if (!failure) {throw new Error("Expected the owner change to fail");}const token = await fetchToken(client.rpc, tokenAccount.address);const immutableOwnerExtensionState = (unwrapOption(token.data.extensions) ?? []).find((item) => isExtension("ImmutableOwner", item));console.log("Mint Address:", mint.address);console.log("Token Account:", tokenAccount.address);console.log("ImmutableOwner Extension:", immutableOwnerExtensionState);console.log("SetAuthority Failure:", failure);
Web3.js
import {Connection,Keypair,sendAndConfirmTransaction,SystemProgram,Transaction,LAMPORTS_PER_SOL} from "@solana/web3.js";import {AuthorityType,createInitializeMintInstruction,createInitializeAccountInstruction,createInitializeImmutableOwnerInstruction,createSetAuthorityInstruction,ExtensionType,getAccount,getAccountLen,getImmutableOwner,getMintLen,TOKEN_2022_PROGRAM_ID} from "@solana/spl-token";const connection = new Connection("http://localhost:8899", "confirmed");const feePayer = Keypair.generate();const newOwner = Keypair.generate();const airdropSignature = await connection.requestAirdrop(feePayer.publicKey,5 * LAMPORTS_PER_SOL);const latestBlockhash = await connection.getLatestBlockhash();await connection.confirmTransaction({blockhash: latestBlockhash.blockhash,lastValidBlockHeight: latestBlockhash.lastValidBlockHeight,signature: airdropSignature});const mint = Keypair.generate();const mintLength = getMintLen([]);const mintRent = await connection.getMinimumBalanceForRentExemption(mintLength);const extensions = [ExtensionType.ImmutableOwner];const tokenAccount = new Keypair();const tokenAccountLen = getAccountLen(extensions);const tokenAccountRent =await connection.getMinimumBalanceForRentExemption(tokenAccountLen);const createMintAccountInstruction = SystemProgram.createAccount({fromPubkey: feePayer.publicKey, // Account funding the new mint account.newAccountPubkey: mint.publicKey, // New mint account to create.space: mintLength, // Account size in bytes for the mint.lamports: mintRent, // Lamports funding the mint account rent.programId: TOKEN_2022_PROGRAM_ID // Program that owns the mint account.});const initializeMintInstruction = createInitializeMintInstruction(mint.publicKey, // Mint account to initialize.0, // Number of decimals for the token.feePayer.publicKey, // Authority allowed to mint new tokens.feePayer.publicKey, // Authority allowed to freeze token accounts.TOKEN_2022_PROGRAM_ID // Program that owns the mint account.);const createTokenAccountInstruction = SystemProgram.createAccount({fromPubkey: feePayer.publicKey, // Account funding the new token account.newAccountPubkey: tokenAccount.publicKey, // New token account to create.space: tokenAccountLen, // Account size in bytes for the token account plus ImmutableOwner.lamports: tokenAccountRent, // Lamports funding the token account rent.programId: TOKEN_2022_PROGRAM_ID // Program that owns the token account.});const initializeImmutableOwnerInstruction =createInitializeImmutableOwnerInstruction(tokenAccount.publicKey, // Token account that stores the ImmutableOwner extension.TOKEN_2022_PROGRAM_ID // Token program that owns the token account.);const initializeTokenAccountInstruction = createInitializeAccountInstruction(tokenAccount.publicKey, // Token account to initialize.mint.publicKey, // Mint for the token account.feePayer.publicKey, // Owner of the token account.TOKEN_2022_PROGRAM_ID // Token program that owns the token account.);await sendAndConfirmTransaction(connection,new Transaction().add(createMintAccountInstruction,initializeMintInstruction),[feePayer, mint]);await sendAndConfirmTransaction(connection,new Transaction().add(createTokenAccountInstruction,initializeImmutableOwnerInstruction,initializeTokenAccountInstruction),[feePayer, tokenAccount]);let failure: string | undefined;try {await sendAndConfirmTransaction(connection,new Transaction().add(createSetAuthorityInstruction(tokenAccount.publicKey, // Token account whose authority is being updated.feePayer.publicKey, // Current token account owner signing the instruction.AuthorityType.AccountOwner, // Account authority field to change.newOwner.publicKey, // New token account owner to set.[], // Additional multisig signers.TOKEN_2022_PROGRAM_ID // Token program that owns the token account.)),[feePayer]);} catch (error) {failure = String(error);}if (!failure) {throw new Error("Expected the owner change to fail");}const tokenAccountData = await getAccount(connection,tokenAccount.publicKey,"confirmed",TOKEN_2022_PROGRAM_ID);const immutableOwnerExtension = getImmutableOwner(tokenAccountData);console.log("Mint Address:", mint.publicKey.toBase58());console.log("Token Account:", tokenAccount.publicKey.toBase58());console.log("ImmutableOwner Extension:", immutableOwnerExtension);console.log("SetAuthority Failure:", failure);
Rust
use anyhow::{anyhow, Result};use solana_client::nonblocking::rpc_client::RpcClient;use solana_commitment_config::CommitmentConfig;use solana_sdk::{program_pack::Pack,signature::{Keypair, Signer},transaction::Transaction,};use solana_system_interface::instruction::create_account;use spl_token_2022_interface::{extension::{immutable_owner::ImmutableOwner, BaseStateWithExtensions, ExtensionType,StateWithExtensions,},instruction::{initialize_account, initialize_immutable_owner, initialize_mint, set_authority,AuthorityType,},state::{Account, Mint},ID as TOKEN_2022_PROGRAM_ID,};#[tokio::main]async fn main() -> Result<()> {let client = RpcClient::new_with_commitment(String::from("http://localhost:8899"),CommitmentConfig::confirmed(),);let fee_payer = Keypair::new();let airdrop_signature = client.request_airdrop(&fee_payer.pubkey(), 5_000_000_000).await?;loop {let confirmed = client.confirm_transaction(&airdrop_signature).await?;if confirmed {break;}}let mint = Keypair::new();let mint_space = Mint::LEN;let mint_rent = client.get_minimum_balance_for_rent_exemption(mint_space).await?;let create_mint_account_instruction = create_account(&fee_payer.pubkey(), // Account funding the new mint account.&mint.pubkey(), // New mint account to create.mint_rent, // Lamports funding the mint account rent.mint_space as u64, // Account size in bytes for the mint.&TOKEN_2022_PROGRAM_ID, // Program that owns the mint account.);let initialize_mint_instruction = initialize_mint(&TOKEN_2022_PROGRAM_ID, // Program that owns the mint account.&mint.pubkey(), // Mint account to initialize.&fee_payer.pubkey(), // Authority allowed to mint new tokens.Some(&fee_payer.pubkey()), // Authority allowed to freeze token accounts.0, // Number of decimals for the token.)?;let token_account = Keypair::new();let token_account_space =ExtensionType::try_calculate_account_len::<Account>(&[ExtensionType::ImmutableOwner])?;let token_account_rent = client.get_minimum_balance_for_rent_exemption(token_account_space).await?;let create_token_account_instruction = create_account(&fee_payer.pubkey(), // Account funding the new token account.&token_account.pubkey(), // New token account to create.token_account_rent, // Lamports funding the token account rent.token_account_space as u64, // Account size in bytes for the token account plus ImmutableOwner.&TOKEN_2022_PROGRAM_ID, // Program that owns the token account.);let initialize_token_account = initialize_account(&TOKEN_2022_PROGRAM_ID, // Token program that owns the token account.&token_account.pubkey(), // Token account to initialize.&mint.pubkey(), // Mint for the token account.&fee_payer.pubkey(), // Owner of the token account.)?;let init_immutable_owner_instruction =initialize_immutable_owner(&TOKEN_2022_PROGRAM_ID, // Token program that owns the token account.&token_account.pubkey(), // Token account that stores the ImmutableOwner extension.)?;let transaction = Transaction::new_signed_with_payer(&[create_mint_account_instruction,initialize_mint_instruction,create_token_account_instruction,init_immutable_owner_instruction,initialize_token_account,],Some(&fee_payer.pubkey()),&[&fee_payer, &mint, &token_account],client.get_latest_blockhash().await?,);client.send_and_confirm_transaction(&transaction).await?;let token_account_data = client.get_account(&token_account.pubkey()).await?;let token_account_state = StateWithExtensions::<Account>::unpack(&token_account_data.data)?;let new_owner = Keypair::new();let set_authority_instruction = set_authority(&TOKEN_2022_PROGRAM_ID, // Token program that owns the token account.&token_account.pubkey(), // Token account whose authority is being updated.Some(&new_owner.pubkey()), // New token account owner to set.AuthorityType::AccountOwner, // Account authority field to change.&fee_payer.pubkey(), // Current token account owner signing the instruction.&[], // Additional multisig signers.)?;let set_authority_transaction = Transaction::new_signed_with_payer(&[set_authority_instruction],Some(&fee_payer.pubkey()),&[&fee_payer],client.get_latest_blockhash().await?,);let failure = match client.send_and_confirm_transaction(&set_authority_transaction).await{Ok(sig) => return Err(anyhow!("Expected the owner change to fail: {}", sig)),Err(e) => format!("{:#?}", e),};let immutable_owner_extension = token_account_state.get_extension::<ImmutableOwner>()?;println!("Mint Address: {}", mint.pubkey());println!("Token Account: {}", token_account.pubkey());println!("ImmutableOwner Extension: {:#?}", immutable_owner_extension);println!("SetAuthority Failure: {}", failure);Ok(())}
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