use crate::{
parse_account_data::{ParsableAccount, ParseAccountError},
StringAmount,
};
use solana_sdk::pubkey::Pubkey;
use spl_token_v2_0::{
option::COption,
pack::Pack,
solana_sdk::pubkey::Pubkey as SplTokenPubkey,
state::{Account, AccountState, Mint, Multisig},
};
use std::str::FromStr;
pub fn spl_token_id_v2_0() -> Pubkey {
Pubkey::from_str(&spl_token_v2_0::id().to_string()).unwrap()
}
pub fn spl_token_v2_0_native_mint() -> Pubkey {
Pubkey::from_str(&spl_token_v2_0::native_mint::id().to_string()).unwrap()
}
pub fn parse_token(
data: &[u8],
mint_decimals: Option<u8>,
) -> Result<TokenAccountType, ParseAccountError> {
if data.len() == Account::get_packed_len() {
let account = Account::unpack(data)
.map_err(|_| ParseAccountError::AccountNotParsable(ParsableAccount::SplToken))?;
let decimals = mint_decimals.ok_or_else(|| {
ParseAccountError::AdditionalDataMissing(
"no mint_decimals provided to parse spl-token account".to_string(),
)
})?;
Ok(TokenAccountType::Account(UiTokenAccount {
mint: account.mint.to_string(),
owner: account.owner.to_string(),
token_amount: token_amount_to_ui_amount(account.amount, decimals),
delegate: match account.delegate {
COption::Some(pubkey) => Some(pubkey.to_string()),
COption::None => None,
},
state: account.state.into(),
is_native: account.is_native(),
rent_exempt_reserve: match account.is_native {
COption::Some(reserve) => Some(token_amount_to_ui_amount(reserve, decimals)),
COption::None => None,
},
delegated_amount: if account.delegate.is_none() {
None
} else {
Some(token_amount_to_ui_amount(
account.delegated_amount,
decimals,
))
},
close_authority: match account.close_authority {
COption::Some(pubkey) => Some(pubkey.to_string()),
COption::None => None,
},
}))
} else if data.len() == Mint::get_packed_len() {
let mint = Mint::unpack(data)
.map_err(|_| ParseAccountError::AccountNotParsable(ParsableAccount::SplToken))?;
Ok(TokenAccountType::Mint(UiMint {
mint_authority: match mint.mint_authority {
COption::Some(pubkey) => Some(pubkey.to_string()),
COption::None => None,
},
supply: mint.supply.to_string(),
decimals: mint.decimals,
is_initialized: mint.is_initialized,
freeze_authority: match mint.freeze_authority {
COption::Some(pubkey) => Some(pubkey.to_string()),
COption::None => None,
},
}))
} else if data.len() == Multisig::get_packed_len() {
let multisig = Multisig::unpack(data)
.map_err(|_| ParseAccountError::AccountNotParsable(ParsableAccount::SplToken))?;
Ok(TokenAccountType::Multisig(UiMultisig {
num_required_signers: multisig.m,
num_valid_signers: multisig.n,
is_initialized: multisig.is_initialized,
signers: multisig
.signers
.iter()
.filter_map(|pubkey| {
if pubkey != &SplTokenPubkey::default() {
Some(pubkey.to_string())
} else {
None
}
})
.collect(),
}))
} else {
Err(ParseAccountError::AccountNotParsable(
ParsableAccount::SplToken,
))
}
}
#[derive(Debug, Serialize, Deserialize, PartialEq)]
#[serde(rename_all = "camelCase", tag = "type", content = "info")]
pub enum TokenAccountType {
Account(UiTokenAccount),
Mint(UiMint),
Multisig(UiMultisig),
}
#[derive(Debug, Serialize, Deserialize, PartialEq)]
#[serde(rename_all = "camelCase")]
pub struct UiTokenAccount {
pub mint: String,
pub owner: String,
pub token_amount: UiTokenAmount,
#[serde(skip_serializing_if = "Option::is_none")]
pub delegate: Option<String>,
pub state: UiAccountState,
pub is_native: bool,
#[serde(skip_serializing_if = "Option::is_none")]
pub rent_exempt_reserve: Option<UiTokenAmount>,
#[serde(skip_serializing_if = "Option::is_none")]
pub delegated_amount: Option<UiTokenAmount>,
#[serde(skip_serializing_if = "Option::is_none")]
pub close_authority: Option<String>,
}
#[derive(Debug, Serialize, Deserialize, PartialEq)]
#[serde(rename_all = "camelCase")]
pub enum UiAccountState {
Uninitialized,
Initialized,
Frozen,
}
impl From<AccountState> for UiAccountState {
fn from(state: AccountState) -> Self {
match state {
AccountState::Uninitialized => UiAccountState::Uninitialized,
AccountState::Initialized => UiAccountState::Initialized,
AccountState::Frozen => UiAccountState::Frozen,
}
}
}
#[derive(Serialize, Deserialize, Clone, Debug, PartialEq)]
#[serde(rename_all = "camelCase")]
pub struct UiTokenAmount {
pub ui_amount: f64,
pub decimals: u8,
pub amount: StringAmount,
}
pub fn token_amount_to_ui_amount(amount: u64, decimals: u8) -> UiTokenAmount {
let amount_decimals = amount as f64 / 10_usize.pow(decimals as u32) as f64;
UiTokenAmount {
ui_amount: amount_decimals,
decimals,
amount: amount.to_string(),
}
}
#[derive(Debug, Serialize, Deserialize, PartialEq)]
#[serde(rename_all = "camelCase")]
pub struct UiMint {
pub mint_authority: Option<String>,
pub supply: StringAmount,
pub decimals: u8,
pub is_initialized: bool,
pub freeze_authority: Option<String>,
}
#[derive(Debug, Serialize, Deserialize, PartialEq)]
#[serde(rename_all = "camelCase")]
pub struct UiMultisig {
pub num_required_signers: u8,
pub num_valid_signers: u8,
pub is_initialized: bool,
pub signers: Vec<String>,
}
pub fn get_token_account_mint(data: &[u8]) -> Option<Pubkey> {
if data.len() == Account::get_packed_len() {
Some(Pubkey::new(&data[0..32]))
} else {
None
}
}
#[cfg(test)]
mod test {
use super::*;
#[test]
fn test_parse_token() {
let mint_pubkey = SplTokenPubkey::new(&[2; 32]);
let owner_pubkey = SplTokenPubkey::new(&[3; 32]);
let mut account_data = vec![0; Account::get_packed_len()];
Account::unpack_unchecked_mut(&mut account_data, &mut |account: &mut Account| {
account.mint = mint_pubkey;
account.owner = owner_pubkey;
account.amount = 42;
account.state = AccountState::Initialized;
account.is_native = COption::None;
account.close_authority = COption::Some(owner_pubkey);
Ok(())
})
.unwrap();
assert!(parse_token(&account_data, None).is_err());
assert_eq!(
parse_token(&account_data, Some(2)).unwrap(),
TokenAccountType::Account(UiTokenAccount {
mint: mint_pubkey.to_string(),
owner: owner_pubkey.to_string(),
token_amount: UiTokenAmount {
ui_amount: 0.42,
decimals: 2,
amount: "42".to_string()
},
delegate: None,
state: UiAccountState::Initialized,
is_native: false,
rent_exempt_reserve: None,
delegated_amount: None,
close_authority: Some(owner_pubkey.to_string()),
}),
);
let mut mint_data = vec![0; Mint::get_packed_len()];
Mint::unpack_unchecked_mut(&mut mint_data, &mut |mint: &mut Mint| {
mint.mint_authority = COption::Some(owner_pubkey);
mint.supply = 42;
mint.decimals = 3;
mint.is_initialized = true;
mint.freeze_authority = COption::Some(owner_pubkey);
Ok(())
})
.unwrap();
assert_eq!(
parse_token(&mint_data, None).unwrap(),
TokenAccountType::Mint(UiMint {
mint_authority: Some(owner_pubkey.to_string()),
supply: 42.to_string(),
decimals: 3,
is_initialized: true,
freeze_authority: Some(owner_pubkey.to_string()),
}),
);
let signer1 = SplTokenPubkey::new(&[1; 32]);
let signer2 = SplTokenPubkey::new(&[2; 32]);
let signer3 = SplTokenPubkey::new(&[3; 32]);
let mut multisig_data = vec![0; Multisig::get_packed_len()];
let mut signers = [SplTokenPubkey::default(); 11];
signers[0] = signer1;
signers[1] = signer2;
signers[2] = signer3;
Multisig::unpack_unchecked_mut(&mut multisig_data, &mut |multisig: &mut Multisig| {
multisig.m = 2;
multisig.n = 3;
multisig.is_initialized = true;
multisig.signers = signers;
Ok(())
})
.unwrap();
assert_eq!(
parse_token(&multisig_data, None).unwrap(),
TokenAccountType::Multisig(UiMultisig {
num_required_signers: 2,
num_valid_signers: 3,
is_initialized: true,
signers: vec![
signer1.to_string(),
signer2.to_string(),
signer3.to_string()
],
}),
);
let bad_data = vec![0; 4];
assert!(parse_token(&bad_data, None).is_err());
}
#[test]
fn test_get_token_account_mint() {
let mint_pubkey = SplTokenPubkey::new(&[2; 32]);
let mut account_data = vec![0; Account::get_packed_len()];
Account::unpack_unchecked_mut(&mut account_data, &mut |account: &mut Account| {
account.mint = mint_pubkey;
Ok(())
})
.unwrap();
let expected_mint_pubkey = Pubkey::new(&[2; 32]);
assert_eq!(
get_token_account_mint(&account_data),
Some(expected_mint_pubkey)
);
}
}