Onveranderbare eigenaar

Wat Is Immutable Owner?

De ImmutableOwner account-extensie van het Token Extension Program maakt de eigenaar van een token account permanent.

Zodra een token account is geïnitialiseerd met ImmutableOwner, kunnen latere SetAuthority-instructies de AccountOwner-autorisatie niet meer wijzigen.

Associated Token Accounts

Associated token accounts die zijn aangemaakt via het Associated Token Program voor het Token Extension Program initialiseren automatisch ImmutableOwner op het token account.

Hoe Initialiseer Je een Immutable Owner Account

Om een immutable owner account te initialiseren:

  1. Maak een mint aan en initialiseer deze.
  2. Maak een token account aan met voldoende ruimte voor ImmutableOwner.
  3. Initialiseer ImmutableOwner op het token account vóór InitializeAccount.
  4. Een poging om de account-eigenaar later te wijzigen met SetAuthority mislukt met TokenError::ImmutableOwner.

Bereken de grootte van het token account

Bereken de grootte van het token account voor het basis-token account plus de ImmutableOwner-extensie. Dit is de grootte die wordt gebruikt in CreateAccount.

Bereken rent

Bereken rent met behulp van de grootte van het token account die nodig is voor de ImmutableOwner-extensie.

Maak het token account aan

Maak het token account aan met de berekende ruimte en lamports.

Initialiseer ImmutableOwner

Initialiseer de ImmutableOwner extensie op het token account.

Initialiseer het token account

Initialiseer het token account met InitializeAccount in dezelfde transactie.

Bereken de grootte van het token account

Bereken de grootte van het token account voor het basis-token account plus de ImmutableOwner-extensie. Dit is de grootte die wordt gebruikt in CreateAccount.

Bereken rent

Bereken rent met behulp van de grootte van het token account die nodig is voor de ImmutableOwner-extensie.

Maak het token account aan

Maak het token account aan met de berekende ruimte en lamports.

Initialiseer ImmutableOwner

Initialiseer de ImmutableOwner extensie op het token account.

Initialiseer het token account

Initialiseer het token account met InitializeAccount in dezelfde transactie.

Example
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 mintSpace = BigInt(getMintSize());
const mintRent = await client.rpc
.getMinimumBalanceForRentExemption(mintSpace)
.send();
await client.sendTransaction([
getCreateAccountInstruction({
payer: client.payer,
newAccount: mint,
lamports: mintRent,
space: mintSpace,
programAddress: TOKEN_2022_PROGRAM_ADDRESS
}),
getInitializeMintInstruction({
mint: mint.address,
decimals: 0,
mintAuthority: client.payer.address,
freezeAuthority: client.payer.address
})
]);
const immutableOwnerExtension = extension("ImmutableOwner", {});
const tokenSpace = BigInt(getTokenSize([immutableOwnerExtension]));

Instructievolgorde

InitializeImmutableOwner moet vóór InitializeAccount komen. CreateAccount, InitializeImmutableOwner en InitializeAccount moeten in dezelfde transactie worden opgenomen.

Bronverwijzing

ItemBeschrijvingBron
ImmutableOwnerAccountextensie die een token account eigenaar als onveranderlijk markeert.Bron
InitializeImmutableOwnerInstructie die de onveranderlijke-eigenaar extensie initialiseert op een niet-geïnitialiseerd token account.Bron
process_initialize_immutable_ownerProcessorlogica die ImmutableOwner op het account toewijst en initialiseert.Bron
SetAuthorityBasis token instructie die wordt gebruikt om autorisaties te wijzigen, inclusief een token account eigenaar.Bron
process_set_authorityProcessorlogica die eigendomswijzigingen afwijst wanneer het token account ImmutableOwner heeft ingeschakeld.Bron

Typescript

Het Kit voorbeeld hieronder gebruikt de gegenereerde instructies direct. Legacy voorbeelden met @solana/web3.js en @solana/spl-token zijn ter referentie opgenomen.

Kit

Instructions
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);
Console
Click to execute the code.

Web3.js

Instructions
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);
Console
Click to execute the code.

Rust

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(())
}
Console
Click to execute the code.

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