Solana DokümantasyonuSolana'daki tokenlerUzantılar

Değiştirilemez Sahip

ImmutableOwner Uzantısını nasıl etkinleştirirsiniz

ImmutableOwner uzantısı, token account'ları için sahiplik değişikliklerini engeller. Bir token account bu uzantı ile başlatıldığında, belirlenen sahip kalıcıdır ve başka bir hesaba aktarılamaz.

Typescript

import {

  airdropFactory,

  appendTransactionMessageInstructions,

  createSolanaRpc,

  createSolanaRpcSubscriptions,

  createTransactionMessage,

  generateKeyPairSigner,

  getSignatureFromTransaction,

  lamports,

  pipe,

  sendAndConfirmTransactionFactory,

  setTransactionMessageFeePayerSigner,

  setTransactionMessageLifetimeUsingBlockhash,

  signTransactionMessageWithSigners

} from "@solana/kit";

import { getCreateAccountInstruction } from "@solana-program/system";

import {

  getInitializeMintInstruction,

  getMintSize,

  TOKEN_2022_PROGRAM_ADDRESS,

  extension,

  getInitializeImmutableOwnerInstruction,

  getTokenSize,

  getInitializeAccountInstruction

} from "@solana-program/token-2022";



// Create Connection, local validator in this example

const rpc = createSolanaRpc("http://localhost:8899");

const rpcSubscriptions = createSolanaRpcSubscriptions("ws://localhost:8900");



// Generate the authority for the mint (also acts as fee payer)

const authority = await generateKeyPairSigner();



// Fund authority/fee payer

await airdropFactory({ rpc, rpcSubscriptions })({

  recipientAddress: authority.address,

  lamports: lamports(5_000_000_000n), // 5 SOL

  commitment: "confirmed"

});



// Generate keypair to use as address of mint

const mint = await generateKeyPairSigner();



// Get default mint account size (in bytes), with the immutable owner extension

const space = BigInt(getMintSize());



// Get minimum balance for rent exemption

const rent = await rpc.getMinimumBalanceForRentExemption(space).send();



// Get latest blockhash to include in transaction

const { value: latestBlockhash } = await rpc.getLatestBlockhash().send();



// Instruction to create new account for mint (token program)

// Invokes the system program

const createMintAccountInstruction = getCreateAccountInstruction({

  payer: authority,

  newAccount: mint,

  lamports: rent,

  space,

  programAddress: TOKEN_2022_PROGRAM_ADDRESS

});



// Generate keypair to use as address of token account

const tokenAccount = await generateKeyPairSigner();



// Immutable owner extension

const immutableOwnerExtension = extension("ImmutableOwner", {});



// get token account size with extension enabled

const tokenAccountLen = BigInt(getTokenSize([immutableOwnerExtension]));



// Get minimum balance for rent exemption

const tokenAccountRent = await rpc

  .getMinimumBalanceForRentExemption(tokenAccountLen)

  .send();



// Instruction to create new account for the token account

// Invokes the system program

const createTokenAccountInstruction = getCreateAccountInstruction({

  payer: authority,

  newAccount: tokenAccount,

  lamports: tokenAccountRent,

  space: tokenAccountLen,

  programAddress: TOKEN_2022_PROGRAM_ADDRESS

});



// Instruction to initialize the created token account

const initializeTokenAccountInstruction = getInitializeAccountInstruction({

  account: tokenAccount.address,

  mint: mint.address,

  owner: authority.address

});



// Instruction to initialize the immutable owner extension

const initializeImmutableOwnerInstruction =

  getInitializeImmutableOwnerInstruction({

    account: tokenAccount.address

  });



// Instruction to initialize mint account data

// Invokes the token22 program

const initializeMintInstruction = getInitializeMintInstruction({

  mint: mint.address,

  decimals: 9,

  mintAuthority: authority.address

});



const instructions = [

  createMintAccountInstruction,

  initializeMintInstruction,

  createTokenAccountInstruction,

  initializeImmutableOwnerInstruction,

  initializeTokenAccountInstruction

];



// Create transaction message

const transactionMessage = pipe(

  createTransactionMessage({ version: 0 }),

  (tx) => setTransactionMessageFeePayerSigner(authority, tx),

  (tx) => setTransactionMessageLifetimeUsingBlockhash(latestBlockhash, tx),

  (tx) => appendTransactionMessageInstructions(instructions, tx)

);



// Sign transaction message with all required signers

const signedTransaction =

  await signTransactionMessageWithSigners(transactionMessage);



// Send and confirm transaction

await sendAndConfirmTransactionFactory({ rpc, rpcSubscriptions })(

  signedTransaction,

  { commitment: "confirmed", skipPreflight: true }

);



// Get transaction signature

const transactionSignature = getSignatureFromTransaction(signedTransaction);



console.log("Mint Address:", mint.address.toString());

console.log("Transaction Signature:", transactionSignature);
Console
Click to execute the code.

Rust

Rust
use 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<()> {

    // Create connection to local validator

    let client = RpcClient::new_with_commitment(

        String::from("http://localhost:8899"),

        CommitmentConfig::confirmed(),

    );

    let latest_blockhash = client.get_latest_blockhash().await?;



    // Generate a new keypair for the fee payer

    let fee_payer = Keypair::new();



    // Airdrop 5 SOL to fee payer

    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;

        }

    }



    // Generate keypair to use as address of mint

    let mint = Keypair::new();



    // Get default mint account size (in bytes), no extensions enabled

    let mint_space = Mint::LEN;

    let mint_rent = client

        .get_minimum_balance_for_rent_exemption(mint_space)

        .await?;



    // Instruction to create new account for mint (token22)

    let create_mint_account_instruction = create_account(

        &fee_payer.pubkey(),    // payer

        &mint.pubkey(),         // new account (mint)

        mint_rent,              // lamports

        mint_space as u64,      // space

        &TOKEN_2022_PROGRAM_ID, // program id

    );



    // Instruction to initialize mint account data

    let initialize_mint_instruction = initialize_mint(

        &TOKEN_2022_PROGRAM_ID,    // program id

        &mint.pubkey(),            // mint

        &fee_payer.pubkey(),       // mint authority

        Some(&fee_payer.pubkey()), // freeze authority

        9,                         // decimals

    )?;



    // Generate keypair to use as address of token account

    let token_account = Keypair::new();



    // Get default token account size (in bytes),

    //  immutable owner extension enabled

    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?;



    // Instruction to create new account for token account (token22)

    let create_token_account_instruction = create_account(

        &fee_payer.pubkey(),        // payer

        &token_account.pubkey(),    // new account (token account)

        token_account_rent,         // rent

        token_account_space as u64, // space

        &TOKEN_2022_PROGRAM_ID,     // program id

    );



    // initialize token account

    let initialize_token_account = initialize_account(

        &TOKEN_2022_PROGRAM_ID,  // program_id

        &token_account.pubkey(), // token account

        &mint.pubkey(),          //  mint

        &fee_payer.pubkey(),     // authority

    )?;



    let init_immutable_owner_instruction =

        initialize_immutable_owner(&TOKEN_2022_PROGRAM_ID, &token_account.pubkey())?;



    // Construct transaction with previous instructions

    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],

        latest_blockhash,

    );



    client.send_and_confirm_transaction(&transaction).await?;



    println!("Mint Address: {}", mint.pubkey());

    println!(

        "Token account with immutable owner enabled: {}",

        token_account.pubkey()

    );



    // Fetch token account

    let token_account_data = client.get_account(&token_account.pubkey()).await?;

    // Deserialize the token account with extensions

    let token_account_state = StateWithExtensions::<Account>::unpack(&token_account_data.data)?;



    // Get all extension types enabled on this token account

    let extension_types = token_account_state.get_extension_types()?;

    println!("\nExtensions enabled: {:?}", extension_types);



    // Deserialize the ImmutableOwner extension data

    let immutable_owner = token_account_state.get_extension::<ImmutableOwner>()?;

    println!("\n{:#?}", immutable_owner);



    // Attempt to change the owner (should fail with immutable owner error)

    println!("\nAttempting to change owner of token account with immutable owner extension...");



    let new_owner = Keypair::new();

    let set_authority_instruction = set_authority(

        &TOKEN_2022_PROGRAM_ID,

        &token_account.pubkey(),

        Some(&new_owner.pubkey()),

        AuthorityType::AccountOwner,

        &fee_payer.pubkey(),

        &[],

    )?;



    let set_authority_transaction = Transaction::new_signed_with_payer(

        &[set_authority_instruction],

        Some(&fee_payer.pubkey()),

        &[&fee_payer],

        latest_blockhash,

    );



    match client

        .send_and_confirm_transaction(&set_authority_transaction)

        .await

    {

        Ok(sig) => println!("Set authority succeeded unexpectedly: {}", sig),

        Err(e) => println!("Set authority failed as expected:\n{:#?}", e),

    }



    Ok(())

}
Console
Click to execute the code.

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