什么是永久委托?
Token Extensions Program 的 PermanentDelegate
铸币扩展为铸币本身分配了一个委托权限。
永久委托是一个铸币级别的权限,可以授权该铸币的任何代币账户进行转移和销毁操作。它充当该铸币所有代币账户的全局委托,代币账户所有者无法从其代币账户中撤销永久委托。
铸币权限还可以稍后使用 AuthorityType::PermanentDelegate 通过
SetAuthority 轮换永久委托。
如何创建和使用永久委托
要创建和使用永久委托:
- 计算铸币账户大小以及铸币和
PermanentDelegate扩展所需的租金。 - 使用
CreateAccount创建铸币账户,初始化PermanentDelegate,并使用InitializeMint初始化铸币。 - 提交由永久委托签名的
TransferChecked或BurnChecked。代币程序处理这些指令的方式与代币账户所有者签名时相同。
计算账户大小
计算基础铸币加上 PermanentDelegate 扩展的铸币账户大小。这是
CreateAccount 中使用的大小。
计算租金
使用铸币加上 PermanentDelegate 扩展所需的大小来计算租金。
创建铸币账户
使用计算的空间和 lamport 创建 mint account。
初始化 PermanentDelegate
在 mint 上初始化 PermanentDelegate 扩展。
初始化 mint
在同一交易中使用 InitializeMint 初始化 mint。
创建 token account 并铸造代币
为所有者和接收者创建 token account,然后向所有者 token account 铸造代币。
使用永久委托进行转账
使用由永久委托签名的 TransferChecked 转账代币。
指令顺序
InitializePermanentDelegate 必须在 InitializeMint 之前。
CreateAccount、InitializePermanentDelegate 和 InitializeMint
必须包含在同一交易中。
源代码参考
| 项目 | 描述 | 源代码 |
|---|---|---|
PermanentDelegate | Mint 扩展,用于存储在 mint 的每个 token account 上授权的委托。 | 源代码 |
InitializePermanentDelegate | 在 InitializeMint 之前初始化永久委托的指令。 | 源代码 |
SetAuthority | 与 AuthorityType::PermanentDelegate 一起使用以轮换委托的基本代币指令。 | 源代码 |
AuthorityType::PermanentDelegate | 与 SetAuthority 一起使用以在 mint 上轮换永久委托的权限标识符。 | 源代码 |
process_initialize_permanent_delegate | 将永久委托扩展写入 mint 的处理器逻辑。 | 源代码 |
process_set_authority | 当使用 AuthorityType::PermanentDelegate 时验证和轮换永久委托的处理器逻辑。 | 源代码 |
Typescript
以下 Kit 示例直接使用生成的指令。包含使用 @solana/web3.js 和
@solana/spl-token 的旧版示例以供参考。
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 {extension,fetchMint,fetchToken,findAssociatedTokenPda,getCreateAssociatedTokenInstructionAsync,getInitializeMintInstruction,getInitializePermanentDelegateInstruction,getMintSize,getMintToCheckedInstruction,getTransferCheckedInstruction,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 owner = await generateKeyPairSigner();const delegate = await generateKeyPairSigner();const recipient = await generateKeyPairSigner();const permanentDelegateExtension = extension("PermanentDelegate", {delegate: delegate.address});const mintSpace = BigInt(getMintSize([permanentDelegateExtension]));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 plus PermanentDelegate.programAddress: TOKEN_2022_PROGRAM_ADDRESS // Program that owns the mint account.}),getInitializePermanentDelegateInstruction({mint: mint.address, // Mint account that stores the PermanentDelegate extension.delegate: delegate.address // Permanent delegate authorized for all token accounts for the mint.}),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 [sourceToken] = await findAssociatedTokenPda({mint: mint.address,owner: owner.address,tokenProgram: TOKEN_2022_PROGRAM_ADDRESS});const [destinationToken] = await findAssociatedTokenPda({mint: mint.address,owner: recipient.address,tokenProgram: TOKEN_2022_PROGRAM_ADDRESS});await client.sendTransaction([await getCreateAssociatedTokenInstructionAsync({payer: client.payer, // Account funding the associated token account creation.mint: mint.address, // Mint for the associated token account.owner: owner.address // Owner of the source token account.}),await getCreateAssociatedTokenInstructionAsync({payer: client.payer, // Account funding the associated token account creation.mint: mint.address, // Mint for the associated token account.owner: recipient.address // Owner of the destination token account.}),getMintToCheckedInstruction({mint: mint.address, // Mint account that issues the tokens.token: sourceToken, // Token account receiving the newly minted tokens.mintAuthority: client.payer, // Signer authorized to mint new tokens.amount: 1n, // Token amount in base units.decimals: 0 // Decimals defined on the mint.})]);await client.sendTransaction([getTransferCheckedInstruction({source: sourceToken, // Token account sending the transfer.mint: mint.address, // Mint with the permanent delegate configuration.destination: destinationToken, // Token account receiving the transfer.authority: delegate, // Permanent delegate signing the transfer.amount: 1n, // Token amount in base units.decimals: 0 // Decimals defined on the mint.})]);const destinationAccount = await fetchToken(client.rpc, destinationToken);const mintAccount = await fetchMint(client.rpc, mint.address);const permanentDelegate = (unwrapOption(mintAccount.data.extensions) ?? []).find((item) => isExtension("PermanentDelegate", item));console.log("Mint Address:", mint.address);console.log("Destination Amount:", destinationAccount.data.amount);console.log("Permanent Delegate Extension:", permanentDelegate);
Console
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Web3.js
Instructions
import {Connection,Keypair,sendAndConfirmTransaction,SystemProgram,Transaction,LAMPORTS_PER_SOL} from "@solana/web3.js";import {ASSOCIATED_TOKEN_PROGRAM_ID,createAssociatedTokenAccountInstruction,createInitializeMintInstruction,createInitializePermanentDelegateInstruction,createMintToCheckedInstruction,createTransferCheckedInstruction,ExtensionType,getAccount,getAssociatedTokenAddressSync,getMint,getMintLen,getPermanentDelegate,TOKEN_2022_PROGRAM_ID} from "@solana/spl-token";const connection = new Connection("http://localhost:8899", "confirmed");const latestBlockhash = await connection.getLatestBlockhash();const feePayer = Keypair.generate();const owner = Keypair.generate();const delegate = Keypair.generate();const recipient = Keypair.generate();const airdropSignature = await connection.requestAirdrop(feePayer.publicKey,5 * LAMPORTS_PER_SOL);await connection.confirmTransaction({blockhash: latestBlockhash.blockhash,lastValidBlockHeight: latestBlockhash.lastValidBlockHeight,signature: airdropSignature});const extensions = [ExtensionType.PermanentDelegate];const mint = Keypair.generate();const mintLength = getMintLen(extensions);const mintRent = await connection.getMinimumBalanceForRentExemption(mintLength);const sourceToken = getAssociatedTokenAddressSync(mint.publicKey,owner.publicKey,false,TOKEN_2022_PROGRAM_ID,ASSOCIATED_TOKEN_PROGRAM_ID);const destinationToken = getAssociatedTokenAddressSync(mint.publicKey,recipient.publicKey,false,TOKEN_2022_PROGRAM_ID,ASSOCIATED_TOKEN_PROGRAM_ID);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 plus PermanentDelegate.lamports: mintRent, // Lamports funding the mint account rent.programId: TOKEN_2022_PROGRAM_ID // Program that owns the mint account.});const initializePermanentDelegateInstruction =createInitializePermanentDelegateInstruction(mint.publicKey, // Mint account that stores the PermanentDelegate extension.delegate.publicKey, // Permanent delegate authorized for all token accounts for the mint.TOKEN_2022_PROGRAM_ID // Token program that owns the mint.);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.);await sendAndConfirmTransaction(connection,new Transaction().add(createMintAccountInstruction,initializePermanentDelegateInstruction,initializeMintInstruction),[feePayer, mint],{commitment: "confirmed"});await sendAndConfirmTransaction(connection,new Transaction().add(createAssociatedTokenAccountInstruction(feePayer.publicKey, // Account funding the associated token account creation.sourceToken, // Associated token account address to create.owner.publicKey, // Owner of the source token account.mint.publicKey, // Mint for the associated token account.TOKEN_2022_PROGRAM_ID, // Token program that owns the token account.ASSOCIATED_TOKEN_PROGRAM_ID // Associated Token Program that creates the account.),createAssociatedTokenAccountInstruction(feePayer.publicKey, // Account funding the associated token account creation.destinationToken, // Associated token account address to create.recipient.publicKey, // Owner of the destination token account.mint.publicKey, // Mint for the associated token account.TOKEN_2022_PROGRAM_ID, // Token program that owns the token account.ASSOCIATED_TOKEN_PROGRAM_ID // Associated Token Program that creates the account.),createMintToCheckedInstruction(mint.publicKey, // Mint account that issues the tokens.sourceToken, // Token account receiving the newly minted tokens.feePayer.publicKey, // Signer authorized to mint new tokens.1, // Token amount in base units.0, // Decimals defined on the mint.[], // Additional multisig signers.TOKEN_2022_PROGRAM_ID // Token program that owns the mint and token account.)),[feePayer],{commitment: "confirmed"});await sendAndConfirmTransaction(connection,new Transaction().add(createTransferCheckedInstruction(sourceToken, // Token account sending the transfer.mint.publicKey, // Mint with the permanent delegate configuration.destinationToken, // Token account receiving the transfer.delegate.publicKey, // Permanent delegate signing the transfer.1, // Token amount in base units.0, // Decimals defined on the mint.[], // Additional multisig signers.TOKEN_2022_PROGRAM_ID // Token program that processes the transfer.)),[feePayer, delegate],{commitment: "confirmed"});const destinationAccount = await getAccount(connection,destinationToken,"confirmed",TOKEN_2022_PROGRAM_ID);const mintAccount = await getMint(connection,mint.publicKey,"confirmed",TOKEN_2022_PROGRAM_ID);const permanentDelegate = getPermanentDelegate(mintAccount);console.log("Mint Address:", mint.publicKey.toBase58());console.log("Destination Amount:", destinationAccount.amount.toString());console.log("Permanent Delegate Extension:", permanentDelegate);
Console
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Rust
Rust
use anyhow::Result;use solana_client::nonblocking::rpc_client::RpcClient;use solana_commitment_config::CommitmentConfig;use solana_sdk::{signature::{Keypair, Signer},transaction::Transaction,};use solana_system_interface::instruction::create_account;use spl_associated_token_account_interface::{address::get_associated_token_address_with_program_id,instruction::create_associated_token_account,};use spl_token_2022_interface::{extension::{permanent_delegate::PermanentDelegate, BaseStateWithExtensions, ExtensionType,StateWithExtensions,},instruction::{initialize_mint, initialize_permanent_delegate, mint_to_checked, transfer_checked,},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 owner = Keypair::new();let delegate = Keypair::new();let recipient = 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 =ExtensionType::try_calculate_account_len::<Mint>(&[ExtensionType::PermanentDelegate])?;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 plus PermanentDelegate.&TOKEN_2022_PROGRAM_ID, // Program that owns the mint account.);let initialize_permanent_delegate_ix = initialize_permanent_delegate(&TOKEN_2022_PROGRAM_ID, // Token program that owns the mint.&mint.pubkey(), // Mint account that stores the PermanentDelegate extension.&delegate.pubkey(), // Permanent delegate authorized for all token accounts for the mint.)?;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 create_mint_transaction = Transaction::new_signed_with_payer(&[create_mint_account_instruction,initialize_permanent_delegate_ix,initialize_mint_instruction,],Some(&fee_payer.pubkey()),&[&fee_payer, &mint],client.get_latest_blockhash().await?,);client.send_and_confirm_transaction(&create_mint_transaction).await?;let source_token = get_associated_token_address_with_program_id(&owner.pubkey(),&mint.pubkey(),&TOKEN_2022_PROGRAM_ID,);let destination_token = get_associated_token_address_with_program_id(&recipient.pubkey(),&mint.pubkey(),&TOKEN_2022_PROGRAM_ID,);let create_token_accounts_transaction = Transaction::new_signed_with_payer(&[create_associated_token_account(&fee_payer.pubkey(), // Account funding the associated token account creation.&owner.pubkey(), // Owner of the source token account.&mint.pubkey(), // Mint for the associated token account.&TOKEN_2022_PROGRAM_ID, // Token program that owns the token account.),create_associated_token_account(&fee_payer.pubkey(), // Account funding the associated token account creation.&recipient.pubkey(), // Owner of the destination token account.&mint.pubkey(), // Mint for the associated token account.&TOKEN_2022_PROGRAM_ID, // Token program that owns the token account.),mint_to_checked(&TOKEN_2022_PROGRAM_ID, // Token program that owns the mint and token account.&mint.pubkey(), // Mint account that issues the tokens.&source_token, // Token account receiving the newly minted tokens.&fee_payer.pubkey(), // Signer authorized to mint new tokens.&[&fee_payer.pubkey()], // Additional multisig signers.1, // Token amount in base units.0, // Decimals defined on the mint.)?,],Some(&fee_payer.pubkey()),&[&fee_payer],client.get_latest_blockhash().await?,);client.send_and_confirm_transaction(&create_token_accounts_transaction).await?;let transfer_transaction = Transaction::new_signed_with_payer(&[transfer_checked(&TOKEN_2022_PROGRAM_ID, // Token program that processes the transfer.&source_token, // Token account sending the transfer.&mint.pubkey(), // Mint with the permanent delegate configuration.&destination_token, // Token account receiving the transfer.&delegate.pubkey(), // Permanent delegate signing the transfer.&[&delegate.pubkey()], // Additional multisig signers.1, // Token amount in base units.0, // Decimals defined on the mint.)?,],Some(&fee_payer.pubkey()),&[&fee_payer, &delegate],client.get_latest_blockhash().await?,);client.send_and_confirm_transaction(&transfer_transaction).await?;let destination_account = client.get_account(&destination_token).await?;let destination_state =StateWithExtensions::<Account>::unpack(&destination_account.data)?;let mint_account = client.get_account(&mint.pubkey()).await?;let mint_state = StateWithExtensions::<Mint>::unpack(&mint_account.data)?;let permanent_delegate = mint_state.get_extension::<PermanentDelegate>()?;println!("Mint Address: {}", mint.pubkey());println!("Destination Amount: {}",u64::from(destination_state.base.amount));println!("Permanent Delegate Extension: {:?}", permanent_delegate);Ok(())}
Console
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