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fast-bridge: Timeouts #381

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merged 4 commits into from
Aug 27, 2024
Merged

fast-bridge: Timeouts #381

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aa9aae7
add timeouts for cross chain intents
dhruvja Aug 27, 2024
5efbe64
change channel id to 1 and remove flags
dhruvja Aug 27, 2024
b022453
fix clippy
dhruvja Aug 27, 2024
c579aec
Update lib.rs
doradelta Aug 27, 2024
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245 changes: 245 additions & 0 deletions solana/bridge-escrow/programs/bridge-escrow/src/bridge.rs
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Original file line number Diff line number Diff line change
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use std::str::FromStr;

use anchor_lang::prelude::*;
use anchor_spl::token::{CloseAccount, MintTo};
use ibc::apps::transfer::types::msgs::transfer::MsgTransfer;
use ibc::apps::transfer::types::packet::PacketData;
use ibc::apps::transfer::types::{PrefixedCoin, PrefixedDenom};
use ibc::core::channel::types::timeout::TimeoutHeight;
use ibc::core::host::types::identifiers::{ChannelId, PortId};
use ibc::core::primitives::Timestamp;
use ibc::primitives::Signer as IbcSigner;
use lib::hash::CryptoHash;
use solana_ibc::cpi::accounts::SendTransfer;
use solana_ibc::cpi::send_transfer;

use crate::{
ErrorCode, OnTimeout, SplTokenTransfer, DUMMY_TOKEN_TRANSFER_AMOUNT,
};

pub fn bridge_transfer(
accounts: BridgeTransferAccounts<'_>,
custom_memo: String,
hashed_full_denom: CryptoHash,
signer_seeds: &[&[&[u8]]],
) -> Result<()> {
let receiver_token_account = accounts.receiver_token_account;

// Mint dummy tokens so that they can transferred
let mint_acc = MintTo {
mint: accounts.token_mint.clone(),
to: receiver_token_account.clone(),
authority: accounts.auctioneer_state,
};

let cpi_ctx = CpiContext::new_with_signer(
accounts.token_program.clone(),
mint_acc,
signer_seeds,
);

anchor_spl::token::mint_to(cpi_ctx, DUMMY_TOKEN_TRANSFER_AMOUNT)?;

// Cross-chain transfer + memo
let transfer_ctx = CpiContext::new(accounts.ibc_program, SendTransfer {
sender: accounts.sender.clone(),
receiver: Some(accounts.receiver),
storage: accounts.storage,
trie: accounts.trie,
chain: accounts.chain,
mint_authority: Some(accounts.mint_authority),
token_mint: Some(accounts.token_mint.clone()),
escrow_account: Some(accounts.escrow_account),
receiver_token_account: Some(receiver_token_account.to_account_info()),
fee_collector: Some(accounts.fee_collector),
token_program: Some(accounts.token_program.clone()),
system_program: accounts.system_program,
});

let memo = "{\"forward\":{\"receiver\":\"\
0x4c22af5da4a849a8f39be00eb1b44676ac5c9060\",\"port\":\"\
transfer\",\"channel\":\"channel-52\",\"timeout\":\
600000000000000,\"next\":{\"memo\":\"my-custom-msg\"}}}"
.to_string();
let memo = memo.replace("my-custom-msg", &custom_memo);

// MsgTransfer
let msg = MsgTransfer {
port_id_on_a: PortId::from_str("transfer").unwrap(),
chan_id_on_a: ChannelId::from_str("channel-1").unwrap(),
packet_data: PacketData {
token: PrefixedCoin {
denom: PrefixedDenom::from_str(
&accounts.token_mint.key().to_string(),
)
.unwrap(), // token only owned by this PDA
amount: DUMMY_TOKEN_TRANSFER_AMOUNT.into(),
},
sender: IbcSigner::from(accounts.sender.key().to_string()),
receiver: String::from("pfm").into(),
memo: memo.into(),
},
timeout_height_on_b: TimeoutHeight::Never,
timeout_timestamp_on_b: Timestamp::from_nanoseconds(u64::MAX).unwrap(),
};

send_transfer(transfer_ctx, hashed_full_denom, msg)?;

// Close the dummy token account.
let close_accs = CloseAccount {
account: receiver_token_account,
destination: accounts.sender.clone(),
authority: accounts.sender,
};

let cpi_ctx = CpiContext::new(accounts.token_program, close_accs);

anchor_spl::token::close_account(cpi_ctx)?;

Ok(())
}

pub struct BridgeTransferAccounts<'info> {
pub sender: AccountInfo<'info>,
pub auctioneer_state: AccountInfo<'info>,
pub receiver: AccountInfo<'info>,
pub storage: AccountInfo<'info>,
pub trie: AccountInfo<'info>,
pub chain: AccountInfo<'info>,
pub mint_authority: AccountInfo<'info>,
pub token_mint: AccountInfo<'info>,
pub escrow_account: AccountInfo<'info>,
pub receiver_token_account: AccountInfo<'info>,
pub fee_collector: AccountInfo<'info>,
pub ibc_program: AccountInfo<'info>,
pub token_program: AccountInfo<'info>,
pub system_program: AccountInfo<'info>,
}

impl<'info> TryFrom<&mut SplTokenTransfer<'info>>
for BridgeTransferAccounts<'info>
{
type Error = anchor_lang::error::Error;

fn try_from(accounts: &mut SplTokenTransfer<'info>) -> Result<Self> {
Ok(Self {
sender: accounts.solver.to_account_info(),
auctioneer_state: accounts.auctioneer_state.to_account_info(),
receiver: accounts
.receiver
.as_ref()
.ok_or(ErrorCode::AccountsNotPresent)?
.to_account_info(),
storage: accounts
.storage
.as_ref()
.ok_or(ErrorCode::AccountsNotPresent)?
.to_account_info(),
trie: accounts
.trie
.as_ref()
.ok_or(ErrorCode::AccountsNotPresent)?
.to_account_info(),
chain: accounts
.chain
.as_ref()
.ok_or(ErrorCode::AccountsNotPresent)?
.to_account_info(),
mint_authority: accounts
.mint_authority
.as_ref()
.map(|acc| acc.to_account_info())
.ok_or(ErrorCode::AccountsNotPresent)?,
token_mint: accounts
.token_mint
.as_ref()
.map(|acc| acc.to_account_info())
.ok_or(ErrorCode::AccountsNotPresent)?,
escrow_account: accounts
.escrow_account
.as_ref()
.map(|acc| acc.to_account_info())
.ok_or(ErrorCode::AccountsNotPresent)?,
receiver_token_account: accounts
.receiver_token_account
.as_ref()
.map(|acc| acc.to_account_info())
.ok_or(ErrorCode::AccountsNotPresent)?,
fee_collector: accounts
.fee_collector
.as_ref()
.map(|acc| acc.to_account_info())
.ok_or(ErrorCode::AccountsNotPresent)?,
ibc_program: accounts
.ibc_program
.as_ref()
.map(|acc| acc.to_account_info())
.ok_or(ErrorCode::AccountsNotPresent)?,
token_program: accounts.token_program.to_account_info(),
system_program: accounts.system_program.to_account_info(),
})
}
}

impl<'info> TryFrom<&mut OnTimeout<'info>> for BridgeTransferAccounts<'info> {
type Error = anchor_lang::error::Error;

fn try_from(accounts: &mut OnTimeout<'info>) -> Result<Self> {
Ok(Self {
sender: accounts.caller.to_account_info(),
auctioneer_state: accounts.auctioneer_state.to_account_info(),
receiver: accounts
.receiver
.as_ref()
.ok_or(ErrorCode::AccountsNotPresent)?
.to_account_info(),
storage: accounts
.storage
.as_ref()
.ok_or(ErrorCode::AccountsNotPresent)?
.to_account_info(),
trie: accounts
.trie
.as_ref()
.ok_or(ErrorCode::AccountsNotPresent)?
.to_account_info(),
chain: accounts
.chain
.as_ref()
.ok_or(ErrorCode::AccountsNotPresent)?
.to_account_info(),
mint_authority: accounts
.mint_authority
.as_ref()
.map(|acc| acc.to_account_info())
.ok_or(ErrorCode::AccountsNotPresent)?,
token_mint: accounts
.token_mint
.as_ref()
.map(|acc| acc.to_account_info())
.ok_or(ErrorCode::AccountsNotPresent)?,
escrow_account: accounts
.escrow_account
.as_ref()
.map(|acc| acc.to_account_info())
.ok_or(ErrorCode::AccountsNotPresent)?,
receiver_token_account: accounts
.receiver_token_account
.as_ref()
.map(|acc| acc.to_account_info())
.ok_or(ErrorCode::AccountsNotPresent)?,
fee_collector: accounts
.fee_collector
.as_ref()
.map(|acc| acc.to_account_info())
.ok_or(ErrorCode::AccountsNotPresent)?,
ibc_program: accounts
.ibc_program
.as_ref()
.map(|acc| acc.to_account_info())
.ok_or(ErrorCode::AccountsNotPresent)?,
token_program: accounts.token_program.to_account_info(),
system_program: accounts.system_program.to_account_info(),
})
}
}
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