167 lines
4.0 KiB
Rust
167 lines
4.0 KiB
Rust
use anchor_lang::{
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context::CpiContext,
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solana_program::{
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account_info::AccountInfo,
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pubkey::Pubkey,
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stake::{
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self,
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program::ID,
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state::{StakeAuthorize, StakeState},
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},
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},
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Accounts, Result,
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};
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use borsh::BorshDeserialize;
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use std::ops::Deref;
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// CPI functions
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pub fn authorize<'info>(
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ctx: CpiContext<'_, '_, '_, 'info, Authorize<'info>>,
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stake_authorize: StakeAuthorize,
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custodian: Option<AccountInfo<'info>>,
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) -> Result<()> {
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let ix = stake::instruction::authorize(
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ctx.accounts.stake.key,
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ctx.accounts.authorized.key,
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ctx.accounts.new_authorized.key,
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stake_authorize,
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custodian.as_ref().map(|c| c.key),
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);
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let mut account_infos = vec![
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ctx.accounts.stake,
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ctx.accounts.clock,
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ctx.accounts.authorized,
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];
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if let Some(c) = custodian {
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account_infos.push(c);
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}
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solana_program::program::invoke_signed(&ix, &account_infos, ctx.signer_seeds)
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.map_err(Into::into)
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}
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pub fn withdraw<'info>(
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ctx: CpiContext<'_, '_, '_, 'info, Withdraw<'info>>,
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amount: u64,
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custodian: Option<AccountInfo<'info>>,
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) -> Result<()> {
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let ix = stake::instruction::withdraw(
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ctx.accounts.stake.key,
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ctx.accounts.withdrawer.key,
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ctx.accounts.to.key,
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amount,
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custodian.as_ref().map(|c| c.key),
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);
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let mut account_infos = vec![
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ctx.accounts.stake,
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ctx.accounts.to,
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ctx.accounts.clock,
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ctx.accounts.stake_history,
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ctx.accounts.withdrawer,
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];
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if let Some(c) = custodian {
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account_infos.push(c);
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}
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solana_program::program::invoke_signed(&ix, &account_infos, ctx.signer_seeds)
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.map_err(Into::into)
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}
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pub fn deactivate_stake<'info>(
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ctx: CpiContext<'_, '_, '_, 'info, DeactivateStake<'info>>,
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) -> Result<()> {
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let ix = stake::instruction::deactivate_stake(ctx.accounts.stake.key, ctx.accounts.staker.key);
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solana_program::program::invoke_signed(
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&ix,
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&[ctx.accounts.stake, ctx.accounts.clock, ctx.accounts.staker],
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ctx.signer_seeds,
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)
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.map_err(Into::into)
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}
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// CPI accounts
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#[derive(Accounts)]
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pub struct Authorize<'info> {
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/// The stake account to be updated
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pub stake: AccountInfo<'info>,
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/// The existing authority
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pub authorized: AccountInfo<'info>,
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/// The new authority to replace the existing authority
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pub new_authorized: AccountInfo<'info>,
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/// Clock sysvar
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pub clock: AccountInfo<'info>,
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}
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#[derive(Accounts)]
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pub struct Withdraw<'info> {
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/// The stake account to be updated
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pub stake: AccountInfo<'info>,
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/// The stake account's withdraw authority
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pub withdrawer: AccountInfo<'info>,
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/// Account to send withdrawn lamports to
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pub to: AccountInfo<'info>,
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/// Clock sysvar
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pub clock: AccountInfo<'info>,
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/// StakeHistory sysvar
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pub stake_history: AccountInfo<'info>,
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}
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#[derive(Accounts)]
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pub struct DeactivateStake<'info> {
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/// The stake account to be deactivated
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pub stake: AccountInfo<'info>,
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/// The stake account's stake authority
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pub staker: AccountInfo<'info>,
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/// Clock sysvar
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pub clock: AccountInfo<'info>,
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}
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// State
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#[derive(Clone)]
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pub struct StakeAccount(StakeState);
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impl anchor_lang::AccountDeserialize for StakeAccount {
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fn try_deserialize(buf: &mut &[u8]) -> anchor_lang::Result<Self> {
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Self::try_deserialize_unchecked(buf)
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}
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fn try_deserialize_unchecked(buf: &mut &[u8]) -> anchor_lang::Result<Self> {
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StakeState::deserialize(buf).map(Self).map_err(Into::into)
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}
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}
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impl anchor_lang::AccountSerialize for StakeAccount {}
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impl anchor_lang::Owner for StakeAccount {
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fn owner() -> Pubkey {
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ID
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}
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}
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impl Deref for StakeAccount {
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type Target = StakeState;
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fn deref(&self) -> &Self::Target {
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&self.0
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}
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}
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#[derive(Clone)]
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pub struct Stake;
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impl anchor_lang::Id for Stake {
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fn id() -> Pubkey {
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ID
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}
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}
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