391 lines
11 KiB
Rust
391 lines
11 KiB
Rust
use crate::{
|
|
accounts::{
|
|
AuthoritySigner,
|
|
ConfigAccount,
|
|
CoreBridge,
|
|
CustodyAccount,
|
|
CustodyAccountDerivationData,
|
|
CustodySigner,
|
|
EmitterAccount,
|
|
MintSigner,
|
|
WrappedDerivationData,
|
|
WrappedMetaDerivationData,
|
|
WrappedMint,
|
|
WrappedTokenMeta,
|
|
},
|
|
api::derive_mint_for_token,
|
|
messages::PayloadTransfer,
|
|
types::*,
|
|
TokenBridgeError,
|
|
TokenBridgeError::{
|
|
InvalidFee,
|
|
WrongAccountOwner,
|
|
},
|
|
};
|
|
use bridge::{
|
|
accounts::Bridge,
|
|
api::{
|
|
PostMessage,
|
|
PostMessageData,
|
|
},
|
|
types::ConsistencyLevel,
|
|
vaa::SerializePayload,
|
|
};
|
|
use primitive_types::U256;
|
|
use solana_program::{
|
|
account_info::AccountInfo,
|
|
instruction::{
|
|
AccountMeta,
|
|
Instruction,
|
|
},
|
|
program::{
|
|
invoke,
|
|
invoke_signed,
|
|
},
|
|
program_error::ProgramError,
|
|
program_option::COption,
|
|
pubkey::Pubkey,
|
|
sysvar::clock::Clock,
|
|
};
|
|
use solitaire::{
|
|
processors::seeded::{
|
|
invoke_seeded,
|
|
Seeded,
|
|
},
|
|
CreationLamports::Exempt,
|
|
*,
|
|
};
|
|
use spl_token::{
|
|
error::TokenError::OwnerMismatch,
|
|
state::{
|
|
Account,
|
|
Mint,
|
|
},
|
|
};
|
|
use std::ops::{
|
|
Deref,
|
|
DerefMut,
|
|
};
|
|
|
|
#[derive(FromAccounts)]
|
|
pub struct TransferNative<'b> {
|
|
pub payer: Mut<Signer<AccountInfo<'b>>>,
|
|
|
|
pub config: ConfigAccount<'b, { AccountState::Initialized }>,
|
|
|
|
pub from: Mut<Data<'b, SplAccount, { AccountState::Initialized }>>,
|
|
|
|
pub mint: Mut<Data<'b, SplMint, { AccountState::Initialized }>>,
|
|
|
|
pub custody: Mut<CustodyAccount<'b, { AccountState::MaybeInitialized }>>,
|
|
|
|
// This could allow someone to race someone else's tx if they do the approval in a separate tx.
|
|
// Therefore the approval must be set in the same tx.
|
|
pub authority_signer: AuthoritySigner<'b>,
|
|
|
|
pub custody_signer: CustodySigner<'b>,
|
|
|
|
/// CPI Context
|
|
pub bridge: Mut<CoreBridge<'b, { AccountState::Initialized }>>,
|
|
|
|
/// Account to store the posted message
|
|
pub message: Signer<Mut<Info<'b>>>,
|
|
|
|
/// Emitter of the VAA
|
|
pub emitter: EmitterAccount<'b>,
|
|
|
|
/// Tracker for the emitter sequence
|
|
pub sequence: Mut<Info<'b>>,
|
|
|
|
/// Account to collect tx fee
|
|
pub fee_collector: Mut<Info<'b>>,
|
|
|
|
pub clock: Sysvar<'b, Clock>,
|
|
}
|
|
|
|
impl<'a> From<&TransferNative<'a>> for CustodyAccountDerivationData {
|
|
fn from(accs: &TransferNative<'a>) -> Self {
|
|
CustodyAccountDerivationData {
|
|
mint: *accs.mint.info().key,
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'b> InstructionContext<'b> for TransferNative<'b> {
|
|
}
|
|
|
|
#[derive(BorshDeserialize, BorshSerialize, Default)]
|
|
pub struct TransferNativeData {
|
|
pub nonce: u32,
|
|
pub amount: u64,
|
|
pub fee: u64,
|
|
pub target_address: Address,
|
|
pub target_chain: ChainID,
|
|
}
|
|
|
|
pub fn transfer_native(
|
|
ctx: &ExecutionContext,
|
|
accs: &mut TransferNative,
|
|
data: TransferNativeData,
|
|
) -> Result<()> {
|
|
// Verify that the custody account is derived correctly
|
|
let derivation_data: CustodyAccountDerivationData = (&*accs).into();
|
|
accs.custody
|
|
.verify_derivation(ctx.program_id, &derivation_data)?;
|
|
|
|
// Verify mints
|
|
if accs.from.mint != *accs.mint.info().key {
|
|
return Err(TokenBridgeError::InvalidMint.into());
|
|
}
|
|
|
|
// Fee must be less than amount
|
|
if data.fee > data.amount {
|
|
return Err(InvalidFee.into());
|
|
}
|
|
|
|
// Verify that the token is not a wrapped token
|
|
if let COption::Some(mint_authority) = accs.mint.mint_authority {
|
|
if mint_authority == MintSigner::key(None, ctx.program_id) {
|
|
return Err(TokenBridgeError::TokenNotNative.into());
|
|
}
|
|
}
|
|
|
|
if !accs.custody.is_initialized() {
|
|
accs.custody
|
|
.create(&(&*accs).into(), ctx, accs.payer.key, Exempt)?;
|
|
|
|
let init_ix = spl_token::instruction::initialize_account(
|
|
&spl_token::id(),
|
|
accs.custody.info().key,
|
|
accs.mint.info().key,
|
|
accs.custody_signer.key,
|
|
)?;
|
|
invoke_signed(&init_ix, ctx.accounts, &[])?;
|
|
}
|
|
|
|
let trunc_divisor = 10u64.pow(8.max(accs.mint.decimals as u32) - 8);
|
|
// Truncate to 8 decimals
|
|
let amount: u64 = data.amount / trunc_divisor;
|
|
let fee: u64 = data.fee / trunc_divisor;
|
|
// Untruncate the amount to drop the remainder so we don't "burn" user's funds.
|
|
let amount_trunc: u64 = amount * trunc_divisor;
|
|
|
|
// Transfer tokens
|
|
let transfer_ix = spl_token::instruction::transfer(
|
|
&spl_token::id(),
|
|
accs.from.info().key,
|
|
accs.custody.info().key,
|
|
accs.authority_signer.key,
|
|
&[],
|
|
amount_trunc,
|
|
)?;
|
|
invoke_seeded(&transfer_ix, ctx, &accs.authority_signer, None)?;
|
|
|
|
// Pay fee
|
|
let transfer_ix = solana_program::system_instruction::transfer(
|
|
accs.payer.key,
|
|
accs.fee_collector.key,
|
|
accs.bridge.config.fee,
|
|
);
|
|
invoke(&transfer_ix, ctx.accounts)?;
|
|
|
|
// Post message
|
|
let payload = PayloadTransfer {
|
|
amount: U256::from(amount),
|
|
token_address: accs.mint.info().key.to_bytes(),
|
|
token_chain: 1,
|
|
to: data.target_address,
|
|
to_chain: data.target_chain,
|
|
fee: U256::from(fee),
|
|
};
|
|
let params = (
|
|
bridge::instruction::Instruction::PostMessage,
|
|
PostMessageData {
|
|
nonce: data.nonce,
|
|
payload: payload.try_to_vec()?,
|
|
consistency_level: ConsistencyLevel::Finalized,
|
|
},
|
|
);
|
|
|
|
let ix = Instruction::new_with_bytes(
|
|
accs.config.wormhole_bridge,
|
|
params.try_to_vec()?.as_slice(),
|
|
vec![
|
|
AccountMeta::new(*accs.bridge.info().key, false),
|
|
AccountMeta::new(*accs.message.key, true),
|
|
AccountMeta::new_readonly(*accs.emitter.key, true),
|
|
AccountMeta::new(*accs.sequence.key, false),
|
|
AccountMeta::new(*accs.payer.key, true),
|
|
AccountMeta::new(*accs.fee_collector.key, false),
|
|
AccountMeta::new_readonly(*accs.clock.info().key, false),
|
|
AccountMeta::new_readonly(solana_program::system_program::id(), false),
|
|
AccountMeta::new_readonly(solana_program::sysvar::rent::ID, false),
|
|
],
|
|
);
|
|
invoke_seeded(&ix, ctx, &accs.emitter, None)?;
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[derive(FromAccounts)]
|
|
pub struct TransferWrapped<'b> {
|
|
pub payer: Mut<Signer<AccountInfo<'b>>>,
|
|
pub config: ConfigAccount<'b, { AccountState::Initialized }>,
|
|
|
|
pub from: Mut<Data<'b, SplAccount, { AccountState::Initialized }>>,
|
|
pub from_owner: MaybeMut<Signer<Info<'b>>>,
|
|
pub mint: Mut<WrappedMint<'b, { AccountState::Initialized }>>,
|
|
pub wrapped_meta: WrappedTokenMeta<'b, { AccountState::Initialized }>,
|
|
|
|
pub authority_signer: AuthoritySigner<'b>,
|
|
|
|
/// CPI Context
|
|
pub bridge: Mut<CoreBridge<'b, { AccountState::Initialized }>>,
|
|
|
|
/// Account to store the posted message
|
|
pub message: Signer<Mut<Info<'b>>>,
|
|
|
|
/// Emitter of the VAA
|
|
pub emitter: EmitterAccount<'b>,
|
|
|
|
/// Tracker for the emitter sequence
|
|
pub sequence: Mut<Info<'b>>,
|
|
|
|
/// Account to collect tx fee
|
|
pub fee_collector: Mut<Info<'b>>,
|
|
|
|
pub clock: Sysvar<'b, Clock>,
|
|
}
|
|
|
|
impl<'a> From<&TransferWrapped<'a>> for WrappedDerivationData {
|
|
fn from(accs: &TransferWrapped<'a>) -> Self {
|
|
WrappedDerivationData {
|
|
token_chain: 1,
|
|
token_address: accs.mint.info().key.to_bytes(),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'a> From<&TransferWrapped<'a>> for WrappedMetaDerivationData {
|
|
fn from(accs: &TransferWrapped<'a>) -> Self {
|
|
WrappedMetaDerivationData {
|
|
mint_key: *accs.mint.info().key,
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'b> InstructionContext<'b> for TransferWrapped<'b> {
|
|
}
|
|
|
|
#[derive(BorshDeserialize, BorshSerialize, Default)]
|
|
pub struct TransferWrappedData {
|
|
pub nonce: u32,
|
|
pub amount: u64,
|
|
pub fee: u64,
|
|
pub target_address: Address,
|
|
pub target_chain: ChainID,
|
|
}
|
|
|
|
pub fn transfer_wrapped(
|
|
ctx: &ExecutionContext,
|
|
accs: &mut TransferWrapped,
|
|
data: TransferWrappedData,
|
|
) -> Result<()> {
|
|
// Verify that the from account is owned by the from_owner
|
|
if &accs.from.owner != accs.from_owner.key {
|
|
return Err(WrongAccountOwner.into());
|
|
}
|
|
|
|
// Verify mints
|
|
if accs.mint.info().key != &accs.from.mint {
|
|
return Err(TokenBridgeError::InvalidMint.into());
|
|
}
|
|
|
|
// Fee must be less than amount
|
|
if data.fee > data.amount {
|
|
return Err(InvalidFee.into());
|
|
}
|
|
|
|
// Verify that meta is correct
|
|
let derivation_data: WrappedMetaDerivationData = (&*accs).into();
|
|
accs.wrapped_meta
|
|
.verify_derivation(ctx.program_id, &derivation_data)?;
|
|
|
|
// Burn tokens
|
|
let burn_ix = spl_token::instruction::burn(
|
|
&spl_token::id(),
|
|
accs.from.info().key,
|
|
accs.mint.info().key,
|
|
accs.authority_signer.key,
|
|
&[],
|
|
data.amount,
|
|
)?;
|
|
invoke_seeded(&burn_ix, ctx, &accs.authority_signer, None)?;
|
|
|
|
// Pay fee
|
|
let transfer_ix = solana_program::system_instruction::transfer(
|
|
accs.payer.key,
|
|
accs.fee_collector.key,
|
|
accs.bridge.config.fee,
|
|
);
|
|
|
|
invoke(&transfer_ix, ctx.accounts)?;
|
|
|
|
let (_, is_external) = derive_mint_for_token(
|
|
ctx.program_id,
|
|
accs.wrapped_meta.token_address,
|
|
accs.wrapped_meta.chain,
|
|
);
|
|
let (amount, fee) = if is_external && accs.wrapped_meta.original_decimals > 6 {
|
|
// Sollet assets are truncated to 6 decimals, however Wormhole uses 8 and assumes
|
|
// wire-truncation to 8 decimals.
|
|
(
|
|
data.amount
|
|
.checked_mul(10u64.pow(2.min(accs.wrapped_meta.original_decimals as u32 - 6)))
|
|
.unwrap(),
|
|
data.fee
|
|
.checked_mul(10u64.pow(2.min(accs.wrapped_meta.original_decimals as u32 - 6)))
|
|
.unwrap(),
|
|
)
|
|
} else {
|
|
(data.amount, data.fee)
|
|
};
|
|
|
|
// Post message
|
|
let payload = PayloadTransfer {
|
|
amount: U256::from(amount),
|
|
token_address: accs.wrapped_meta.token_address,
|
|
token_chain: accs.wrapped_meta.chain,
|
|
to: data.target_address,
|
|
to_chain: data.target_chain,
|
|
fee: U256::from(fee),
|
|
};
|
|
let params = (
|
|
bridge::instruction::Instruction::PostMessage,
|
|
PostMessageData {
|
|
nonce: data.nonce,
|
|
payload: payload.try_to_vec()?,
|
|
consistency_level: ConsistencyLevel::Finalized,
|
|
},
|
|
);
|
|
|
|
let ix = Instruction::new_with_bytes(
|
|
accs.config.wormhole_bridge,
|
|
params.try_to_vec()?.as_slice(),
|
|
vec![
|
|
AccountMeta::new(*accs.bridge.info().key, false),
|
|
AccountMeta::new(*accs.message.key, true),
|
|
AccountMeta::new_readonly(*accs.emitter.key, true),
|
|
AccountMeta::new(*accs.sequence.key, false),
|
|
AccountMeta::new(*accs.payer.key, true),
|
|
AccountMeta::new(*accs.fee_collector.key, false),
|
|
AccountMeta::new_readonly(*accs.clock.info().key, false),
|
|
AccountMeta::new_readonly(solana_program::system_program::id(), false),
|
|
AccountMeta::new_readonly(solana_program::sysvar::rent::ID, false),
|
|
],
|
|
);
|
|
invoke_seeded(&ix, ctx, &accs.emitter, None)?;
|
|
|
|
Ok(())
|
|
}
|