2018-11-16 08:04:46 -08:00
|
|
|
//! The `transaction` module provides functionality for creating log transactions.
|
|
|
|
|
|
|
|
use bincode::serialize;
|
|
|
|
use hash::{Hash, Hasher};
|
|
|
|
use pubkey::Pubkey;
|
|
|
|
use serde::Serialize;
|
|
|
|
use signature::{Keypair, KeypairUtil, Signature};
|
|
|
|
use std::mem::size_of;
|
|
|
|
|
|
|
|
pub const SIG_OFFSET: usize = size_of::<u64>();
|
|
|
|
|
|
|
|
/// An instruction to execute a program under the `program_id` of `program_ids_index` with the
|
|
|
|
/// specified accounts and userdata
|
|
|
|
#[derive(Serialize, Deserialize, Debug, PartialEq, Eq, Clone)]
|
|
|
|
pub struct Instruction {
|
|
|
|
/// The program code that executes this transaction is identified by the program_id.
|
|
|
|
/// this is an offset into the Transaction::program_ids field
|
|
|
|
pub program_ids_index: u8,
|
|
|
|
/// Indices into the keys array of which accounts to load
|
|
|
|
pub accounts: Vec<u8>,
|
|
|
|
/// Userdata to be stored in the account
|
|
|
|
pub userdata: Vec<u8>,
|
|
|
|
}
|
|
|
|
|
|
|
|
impl Instruction {
|
|
|
|
pub fn new<T: Serialize>(program_ids_index: u8, userdata: &T, accounts: Vec<u8>) -> Self {
|
|
|
|
let userdata = serialize(userdata).unwrap();
|
|
|
|
Instruction {
|
|
|
|
program_ids_index,
|
|
|
|
userdata,
|
|
|
|
accounts,
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/// An atomic transaction
|
|
|
|
#[derive(Serialize, Deserialize, Debug, PartialEq, Eq, Clone)]
|
|
|
|
pub struct Transaction {
|
|
|
|
/// A set of digital signature of `account_keys`, `program_ids`, `last_id`, `fee` and `instructions`, signed by the first
|
|
|
|
/// signatures.len() keys of account_keys
|
|
|
|
pub signatures: Vec<Signature>,
|
|
|
|
|
|
|
|
/// The `Pubkeys` that are executing this transaction userdata. The meaning of each key is
|
|
|
|
/// program-specific.
|
|
|
|
/// * account_keys[0] - Typically this is the `caller` public key. `signature` is verified with account_keys[0].
|
|
|
|
/// In the future which key pays the fee and which keys have signatures would be configurable.
|
|
|
|
/// * account_keys[1] - Typically this is the program context or the recipient of the tokens
|
|
|
|
pub account_keys: Vec<Pubkey>,
|
|
|
|
|
|
|
|
/// The ID of a recent ledger entry.
|
|
|
|
pub last_id: Hash,
|
|
|
|
|
|
|
|
/// The number of tokens paid for processing and storage of this transaction.
|
|
|
|
pub fee: u64,
|
|
|
|
|
|
|
|
/// Keys identifying programs in the instructions vector.
|
|
|
|
pub program_ids: Vec<Pubkey>,
|
|
|
|
/// Programs that will be executed in sequence and commited in one atomic transaction if all
|
|
|
|
/// succeed.
|
|
|
|
pub instructions: Vec<Instruction>,
|
|
|
|
}
|
|
|
|
|
|
|
|
impl Transaction {
|
|
|
|
pub fn new<T: Serialize>(
|
|
|
|
from_keypair: &Keypair,
|
|
|
|
transaction_keys: &[Pubkey],
|
|
|
|
program_id: Pubkey,
|
|
|
|
userdata: &T,
|
|
|
|
last_id: Hash,
|
|
|
|
fee: u64,
|
|
|
|
) -> Self {
|
|
|
|
let program_ids = vec![program_id];
|
|
|
|
let accounts = (0..=transaction_keys.len() as u8).collect();
|
|
|
|
let instructions = vec![Instruction::new(0, userdata, accounts)];
|
|
|
|
Self::new_with_instructions(
|
|
|
|
&[from_keypair],
|
|
|
|
transaction_keys,
|
|
|
|
last_id,
|
|
|
|
fee,
|
|
|
|
program_ids,
|
|
|
|
instructions,
|
|
|
|
)
|
|
|
|
}
|
|
|
|
/// Create a signed transaction
|
|
|
|
/// * `from_keypair` - The key used to sign the transaction. This key is stored as keys[0]
|
|
|
|
/// * `account_keys` - The keys for the transaction. These are the program state
|
|
|
|
/// instances or token recipient keys.
|
|
|
|
/// * `last_id` - The PoH hash.
|
|
|
|
/// * `fee` - The transaction fee.
|
|
|
|
/// * `program_ids` - The keys that identify programs used in the `instruction` vector.
|
|
|
|
/// * `instructions` - The programs and their arguments that the transaction will execute atomically
|
|
|
|
pub fn new_with_instructions(
|
|
|
|
from_keypairs: &[&Keypair],
|
|
|
|
keys: &[Pubkey],
|
|
|
|
last_id: Hash,
|
|
|
|
fee: u64,
|
|
|
|
program_ids: Vec<Pubkey>,
|
|
|
|
instructions: Vec<Instruction>,
|
|
|
|
) -> Self {
|
|
|
|
let mut account_keys: Vec<_> = from_keypairs
|
|
|
|
.iter()
|
|
|
|
.map(|keypair| keypair.pubkey())
|
|
|
|
.collect();
|
|
|
|
account_keys.extend_from_slice(keys);
|
|
|
|
let mut tx = Transaction {
|
|
|
|
signatures: vec![],
|
|
|
|
account_keys,
|
|
|
|
last_id: Hash::default(),
|
|
|
|
fee,
|
|
|
|
program_ids,
|
|
|
|
instructions,
|
|
|
|
};
|
|
|
|
tx.sign(from_keypairs, last_id);
|
|
|
|
tx
|
|
|
|
}
|
|
|
|
pub fn userdata(&self, instruction_index: usize) -> &[u8] {
|
|
|
|
&self.instructions[instruction_index].userdata
|
|
|
|
}
|
|
|
|
fn key_index(&self, instruction_index: usize, accounts_index: usize) -> Option<usize> {
|
|
|
|
self.instructions
|
|
|
|
.get(instruction_index)
|
|
|
|
.and_then(|instruction| instruction.accounts.get(accounts_index))
|
|
|
|
.map(|&account_keys_index| account_keys_index as usize)
|
|
|
|
}
|
|
|
|
pub fn key(&self, instruction_index: usize, accounts_index: usize) -> Option<&Pubkey> {
|
|
|
|
self.key_index(instruction_index, accounts_index)
|
|
|
|
.and_then(|account_keys_index| self.account_keys.get(account_keys_index))
|
|
|
|
}
|
2018-11-29 12:32:16 -08:00
|
|
|
pub fn signer_key(&self, instruction_index: usize, accounts_index: usize) -> Option<&Pubkey> {
|
2018-11-16 08:04:46 -08:00
|
|
|
match self.key_index(instruction_index, accounts_index) {
|
|
|
|
None => None,
|
|
|
|
Some(signature_index) => {
|
|
|
|
if signature_index >= self.signatures.len() {
|
|
|
|
return None;
|
|
|
|
}
|
|
|
|
self.account_keys.get(signature_index)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
pub fn program_id(&self, instruction_index: usize) -> &Pubkey {
|
|
|
|
let program_ids_index = self.instructions[instruction_index].program_ids_index;
|
|
|
|
&self.program_ids[program_ids_index as usize]
|
|
|
|
}
|
|
|
|
/// Get the transaction data to sign.
|
|
|
|
pub fn get_sign_data(&self) -> Vec<u8> {
|
|
|
|
let mut data = serialize(&self.account_keys).expect("serialize account_keys");
|
|
|
|
|
|
|
|
let last_id_data = serialize(&self.last_id).expect("serialize last_id");
|
|
|
|
data.extend_from_slice(&last_id_data);
|
|
|
|
|
|
|
|
let fee_data = serialize(&self.fee).expect("serialize fee");
|
|
|
|
data.extend_from_slice(&fee_data);
|
|
|
|
|
|
|
|
let program_ids = serialize(&self.program_ids).expect("serialize program_ids");
|
|
|
|
data.extend_from_slice(&program_ids);
|
|
|
|
|
|
|
|
let instructions = serialize(&self.instructions).expect("serialize instructions");
|
|
|
|
data.extend_from_slice(&instructions);
|
|
|
|
data
|
|
|
|
}
|
|
|
|
|
|
|
|
/// Sign this transaction.
|
|
|
|
pub fn sign(&mut self, keypairs: &[&Keypair], last_id: Hash) {
|
|
|
|
self.last_id = last_id;
|
|
|
|
let sign_data = self.get_sign_data();
|
|
|
|
self.signatures = keypairs
|
|
|
|
.iter()
|
|
|
|
.map(|keypair| Signature::new(&keypair.sign(&sign_data).as_ref()))
|
|
|
|
.collect();
|
|
|
|
}
|
|
|
|
|
|
|
|
/// Verify only the transaction signature.
|
|
|
|
pub fn verify_signature(&self) -> bool {
|
|
|
|
self.signatures
|
|
|
|
.iter()
|
|
|
|
.all(|s| s.verify(&self.from().as_ref(), &self.get_sign_data()))
|
|
|
|
}
|
|
|
|
|
|
|
|
/// Verify that references in the instructions are valid
|
|
|
|
pub fn verify_refs(&self) -> bool {
|
|
|
|
for instruction in &self.instructions {
|
|
|
|
if (instruction.program_ids_index as usize) >= self.program_ids.len() {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
for account_index in &instruction.accounts {
|
|
|
|
if (*account_index as usize) >= self.account_keys.len() {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
true
|
|
|
|
}
|
|
|
|
|
|
|
|
pub fn from(&self) -> &Pubkey {
|
|
|
|
&self.account_keys[0]
|
|
|
|
}
|
|
|
|
|
|
|
|
// a hash of a slice of transactions only needs to hash the signatures
|
|
|
|
pub fn hash(transactions: &[Transaction]) -> Hash {
|
|
|
|
let mut hasher = Hasher::default();
|
|
|
|
transactions
|
|
|
|
.iter()
|
|
|
|
.for_each(|tx| hasher.hash(&tx.signatures[0].as_ref()));
|
|
|
|
hasher.result()
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
#[cfg(test)]
|
|
|
|
mod tests {
|
|
|
|
use super::*;
|
|
|
|
use bincode::serialize;
|
|
|
|
|
|
|
|
#[test]
|
|
|
|
fn test_refs() {
|
|
|
|
let key = Keypair::new();
|
|
|
|
let key1 = Keypair::new().pubkey();
|
|
|
|
let key2 = Keypair::new().pubkey();
|
|
|
|
let prog1 = Keypair::new().pubkey();
|
|
|
|
let prog2 = Keypair::new().pubkey();
|
|
|
|
let instructions = vec![
|
|
|
|
Instruction::new(0, &(), vec![0, 1]),
|
|
|
|
Instruction::new(1, &(), vec![0, 2]),
|
|
|
|
];
|
|
|
|
let tx = Transaction::new_with_instructions(
|
|
|
|
&[&key],
|
|
|
|
&[key1, key2],
|
|
|
|
Default::default(),
|
|
|
|
0,
|
|
|
|
vec![prog1, prog2],
|
|
|
|
instructions,
|
|
|
|
);
|
|
|
|
assert!(tx.verify_refs());
|
|
|
|
|
|
|
|
assert_eq!(tx.key(0, 0), Some(&key.pubkey()));
|
2018-11-29 12:32:16 -08:00
|
|
|
assert_eq!(tx.signer_key(0, 0), Some(&key.pubkey()));
|
2018-11-16 08:04:46 -08:00
|
|
|
|
|
|
|
assert_eq!(tx.key(1, 0), Some(&key.pubkey()));
|
2018-11-29 12:32:16 -08:00
|
|
|
assert_eq!(tx.signer_key(1, 0), Some(&key.pubkey()));
|
2018-11-16 08:04:46 -08:00
|
|
|
|
|
|
|
assert_eq!(tx.key(0, 1), Some(&key1));
|
2018-11-29 12:32:16 -08:00
|
|
|
assert_eq!(tx.signer_key(0, 1), None);
|
2018-11-16 08:04:46 -08:00
|
|
|
|
|
|
|
assert_eq!(tx.key(1, 1), Some(&key2));
|
2018-11-29 12:32:16 -08:00
|
|
|
assert_eq!(tx.signer_key(1, 1), None);
|
2018-11-16 08:04:46 -08:00
|
|
|
|
|
|
|
assert_eq!(tx.key(2, 0), None);
|
2018-11-29 12:32:16 -08:00
|
|
|
assert_eq!(tx.signer_key(2, 0), None);
|
2018-11-16 08:04:46 -08:00
|
|
|
|
|
|
|
assert_eq!(tx.key(0, 2), None);
|
2018-11-29 12:32:16 -08:00
|
|
|
assert_eq!(tx.signer_key(0, 2), None);
|
2018-11-16 08:04:46 -08:00
|
|
|
|
|
|
|
assert_eq!(*tx.program_id(0), prog1);
|
|
|
|
assert_eq!(*tx.program_id(1), prog2);
|
|
|
|
}
|
|
|
|
#[test]
|
|
|
|
fn test_refs_invalid_program_id() {
|
|
|
|
let key = Keypair::new();
|
|
|
|
let instructions = vec![Instruction::new(1, &(), vec![])];
|
|
|
|
let tx = Transaction::new_with_instructions(
|
|
|
|
&[&key],
|
|
|
|
&[],
|
|
|
|
Default::default(),
|
|
|
|
0,
|
|
|
|
vec![],
|
|
|
|
instructions,
|
|
|
|
);
|
|
|
|
assert!(!tx.verify_refs());
|
|
|
|
}
|
|
|
|
#[test]
|
|
|
|
fn test_refs_invalid_account() {
|
|
|
|
let key = Keypair::new();
|
|
|
|
let instructions = vec![Instruction::new(0, &(), vec![1])];
|
|
|
|
let tx = Transaction::new_with_instructions(
|
|
|
|
&[&key],
|
|
|
|
&[],
|
|
|
|
Default::default(),
|
|
|
|
0,
|
|
|
|
vec![Default::default()],
|
|
|
|
instructions,
|
|
|
|
);
|
|
|
|
assert_eq!(*tx.program_id(0), Default::default());
|
|
|
|
assert!(!tx.verify_refs());
|
|
|
|
}
|
|
|
|
|
2018-11-17 09:46:03 -08:00
|
|
|
/// Detect binary changes in the serialized transaction userdata, which could have a downstream
|
2018-11-16 08:04:46 -08:00
|
|
|
/// affect on SDKs and DApps
|
|
|
|
#[test]
|
|
|
|
fn test_sdk_serialize() {
|
|
|
|
use untrusted::Input;
|
|
|
|
let keypair = Keypair::from_pkcs8(Input::from(&[
|
|
|
|
48, 83, 2, 1, 1, 48, 5, 6, 3, 43, 101, 112, 4, 34, 4, 32, 255, 101, 36, 24, 124, 23,
|
|
|
|
167, 21, 132, 204, 155, 5, 185, 58, 121, 75, 156, 227, 116, 193, 215, 38, 142, 22, 8,
|
|
|
|
14, 229, 239, 119, 93, 5, 218, 161, 35, 3, 33, 0, 36, 100, 158, 252, 33, 161, 97, 185,
|
|
|
|
62, 89, 99, 195, 250, 249, 187, 189, 171, 118, 241, 90, 248, 14, 68, 219, 231, 62, 157,
|
|
|
|
5, 142, 27, 210, 117,
|
2018-12-07 19:01:28 -08:00
|
|
|
]))
|
|
|
|
.unwrap();
|
2018-11-16 08:04:46 -08:00
|
|
|
let to = Pubkey::new(&[
|
|
|
|
1, 1, 1, 4, 5, 6, 7, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 5, 4,
|
|
|
|
1, 1, 1,
|
|
|
|
]);
|
|
|
|
|
|
|
|
let program_id = Pubkey::new(&[
|
|
|
|
2, 2, 2, 4, 5, 6, 7, 8, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 9, 8, 7, 6, 5, 4,
|
|
|
|
2, 2, 2,
|
|
|
|
]);
|
|
|
|
|
|
|
|
let tx = Transaction::new(
|
|
|
|
&keypair,
|
|
|
|
&[keypair.pubkey(), to],
|
|
|
|
program_id,
|
|
|
|
&(1u8, 2u8, 3u8),
|
|
|
|
Hash::default(),
|
|
|
|
99,
|
|
|
|
);
|
|
|
|
assert_eq!(
|
|
|
|
serialize(&tx).unwrap(),
|
|
|
|
vec![
|
|
|
|
1, 0, 0, 0, 0, 0, 0, 0, 213, 248, 255, 179, 219, 217, 130, 31, 27, 85, 33, 217, 62,
|
|
|
|
28, 180, 204, 186, 141, 178, 150, 153, 184, 205, 87, 123, 128, 101, 254, 222, 111,
|
|
|
|
152, 17, 153, 210, 169, 1, 81, 208, 254, 64, 229, 205, 145, 10, 213, 241, 255, 31,
|
|
|
|
184, 52, 242, 148, 213, 131, 241, 165, 144, 181, 18, 4, 58, 171, 44, 11, 3, 0, 0,
|
|
|
|
0, 0, 0, 0, 0, 36, 100, 158, 252, 33, 161, 97, 185, 62, 89, 99, 195, 250, 249, 187,
|
|
|
|
189, 171, 118, 241, 90, 248, 14, 68, 219, 231, 62, 157, 5, 142, 27, 210, 117, 36,
|
|
|
|
100, 158, 252, 33, 161, 97, 185, 62, 89, 99, 195, 250, 249, 187, 189, 171, 118,
|
|
|
|
241, 90, 248, 14, 68, 219, 231, 62, 157, 5, 142, 27, 210, 117, 1, 1, 1, 4, 5, 6, 7,
|
|
|
|
8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 5, 4, 1, 1, 1, 0, 0, 0,
|
|
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
|
|
0, 99, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 4, 5, 6, 7, 8, 9, 1,
|
|
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 9, 8, 7, 6, 5, 4, 2, 2, 2, 1, 0, 0, 0, 0, 0,
|
|
|
|
0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3
|
|
|
|
],
|
|
|
|
);
|
|
|
|
}
|
|
|
|
}
|