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finishe signed transactions

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This commit is contained in:
debris
2016-02-04 23:48:29 +01:00
parent e92c6ee719
commit eab8410402
9 changed files with 164 additions and 229 deletions
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291
ethcore/src/transaction.rs
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@@ -1,7 +1,6 @@
//! Transaction data structure.
use util::*;
use basic_types::*;
use error::*;
use evm::Schedule;
@@ -18,6 +17,16 @@ impl Default for Action {
fn default() -> Action { Action::Create }
}
impl Decodable for Action {
fn decode<D>(decoder: &D) -> Result<Self, DecoderError> where D: Decoder {
let rlp = decoder.as_rlp();
match rlp.is_empty() {
true => Ok(Action::Create),
false => Ok(Action::Call(try!(rlp.as_val())))
}
}
}
/// A set of information describing an externally-originating message call
/// or contract creation operation.
#[derive(Default, Debug, Clone)]
@@ -34,18 +43,6 @@ pub struct Transaction {
pub value: U256,
/// Transaction data.
pub data: Bytes,
//// signature
///// The V field of the signature, either 27 or 28; helps describe the point on the curve.
//pub v: u8,
///// The R field of the signature; helps describe the point on the curve.
//pub r: U256,
///// The S field of the signature; helps describe the point on the curve.
//pub s: U256,
//hash: RefCell<Option<H256>>,
//sender: RefCell<Option<Address>>,
}
impl Transaction {
@@ -62,90 +59,11 @@ impl Transaction {
s.append(&self.value);
s.append(&self.data);
}
/// Create a new transaction.
#[cfg(test)]
#[cfg(feature = "json-tests")]
pub fn new() -> Self {
Transaction {
nonce: x!(0),
gas_price: x!(0),
gas: x!(0),
action: Action::Create,
value: x!(0),
data: vec![],
//v: 0,
//r: x!(0),
//s: x!(0),
//hash: RefCell::new(None),
//sender: RefCell::new(None),
}
}
/// Create a new message-call transaction.
#[allow(dead_code)]
pub fn new_call(to: Address, value: U256, data: Bytes, gas: U256, gas_price: U256, nonce: U256) -> Transaction {
Transaction {
nonce: nonce,
gas_price: gas_price,
gas: gas,
action: Action::Call(to),
value: value,
data: data,
//v: 0,
//r: x!(0),
//s: x!(0),
//hash: RefCell::new(None),
//sender: RefCell::new(None),
}
}
/// Create a new contract-creation transaction.
#[cfg(test)]
pub fn new_create(value: U256, data: Bytes, gas: U256, gas_price: U256, nonce: U256) -> Transaction {
Transaction {
nonce: nonce,
gas_price: gas_price,
gas: gas,
action: Action::Create,
value: value,
data: data,
//v: 0,
//r: x!(0),
//s: x!(0),
//hash: RefCell::new(None),
//sender: RefCell::new(None),
}
}
///// Append object into RLP stream, optionally with or without the signature.
//pub fn rlp_append_opt(&self, s: &mut RlpStream, with_seal: Seal) {
//s.begin_list(6 + match with_seal { Seal::With => 3, _ => 0 });
//s.append(&self.nonce);
//s.append(&self.gas_price);
//s.append(&self.gas);
//match self.action {
//Action::Create => s.append_empty_data(),
//Action::Call(ref to) => s.append(to),
//};
//s.append(&self.value);
//s.append(&self.data);
//if let Seal::With = with_seal {
//s.append(&(self.v as u16)).append(&self.r).append(&self.s);
//}
//}
///// Get the RLP serialisation of the object, optionally with or without the signature.
//pub fn rlp_bytes_opt(&self, with_seal: Seal) -> Bytes {
//let mut s = RlpStream::new();
//self.rlp_append_opt(&mut s, with_seal);
//s.out()
//}
}
impl FromJson for Transaction {
fn from_json(json: &Json) -> Transaction {
let mut r = Transaction {
impl FromJson for SignedTransaction {
fn from_json(json: &Json) -> SignedTransaction {
let t = Transaction {
nonce: xjson!(&json["nonce"]),
gas_price: xjson!(&json["gasPrice"]),
gas: xjson!(&json["gasLimit"]),
@@ -155,41 +73,58 @@ impl FromJson for Transaction {
},
value: xjson!(&json["value"]),
data: xjson!(&json["data"]),
//v: match json.find("v") { Some(ref j) => u16::from_json(j) as u8, None => 0 },
//r: match json.find("r") { Some(j) => xjson!(j), None => x!(0) },
//s: match json.find("s") { Some(j) => xjson!(j), None => x!(0) },
//hash: RefCell::new(None),
//sender: match json.find("sender") {
//Some(&Json::String(ref sender)) => RefCell::new(Some(address_from_hex(clean(sender)))),
//_ => RefCell::new(None),
//},
};
//if let Some(&Json::String(ref secret_key)) = json.find("secretKey") {
//r.sign(&h256_from_hex(clean(secret_key)));
//}
r
match json.find("secretKey") {
Some(&Json::String(ref secret_key)) => t.sign(&h256_from_hex(clean(secret_key))),
_ => SignedTransaction {
transaction: t,
v: match json.find("v") { Some(ref j) => u16::from_json(j) as u8, None => 0 },
r: match json.find("r") { Some(j) => xjson!(j), None => x!(0) },
s: match json.find("s") { Some(j) => xjson!(j), None => x!(0) },
hash: RefCell::new(None),
sender: match json.find("sender") {
Some(&Json::String(ref sender)) => RefCell::new(Some(address_from_hex(clean(sender)))),
_ => RefCell::new(None),
}
}
}
}
}
//impl Encodable for Transaction {
//fn rlp_append(&self, s: &mut RlpStream) { self.rlp_append_opt(s, Seal::With) }
//}
impl Transaction {
/// The message hash of the transaction.
pub fn message_hash(&self) -> H256 {
let mut stream = RlpStream::new();
self.rlp_append_unsigned_transaction(&mut stream);
stream.out().sha3()
}
/// Signs the transaction as coming from `sender`.
//pub fn sign(&mut self, secret: &Secret) {
// TODO: make always low.
//let sig = ec::sign(secret, &self.message_hash());
//let (r, s, v) = sig.unwrap().to_rsv();
//self.r = r;
//self.s = s;
//self.v = v + 27;
//}
pub fn sign(self, secret: &Secret) -> SignedTransaction {
let sig = ec::sign(secret, &self.message_hash());
let (r, s, v) = sig.unwrap().to_rsv();
SignedTransaction {
transaction: self,
r: r,
s: s,
v: v + 27,
hash: RefCell::new(None),
sender: RefCell::new(None)
}
}
/// Signs the transaction as coming from `sender`.
//#[cfg(test)]
//pub fn signed(self, secret: &Secret) -> Transaction { let mut r = self; r.sign(secret); r }
/// Useful for test incorrectly signed transactions.
#[cfg(test)]
pub fn fake_sign(self) -> SignedTransaction {
SignedTransaction {
transaction: self,
r: U256::zero(),
s: U256::zero(),
v: 0,
hash: RefCell::new(None),
sender: RefCell::new(None)
}
}
/// Get the transaction cost in gas for the given params.
pub fn gas_required_for(is_create: bool, data: &[u8], schedule: &Schedule) -> u64 {
@@ -199,91 +134,27 @@ impl Transaction {
)
}
/// The message hash of the transaction.
pub fn message_hash(&self) -> H256 {
let mut stream = RlpStream::new();
self.rlp_append_unsigned_transaction(&mut stream);
stream.out().sha3()
}
pub fn sign(self, secret: &Secret) -> SignedTransaction {
let sig = ec::sign(secret, &self.message_hash());
let (r, s, v) = sig.unwrap().to_rsv();
SignedTransaction {
transaction: self,
r: r,
s: s,
v: v,
hash: RefCell::new(None),
sender: RefCell::new(None)
}
}
/// Get the transaction cost in gas for this transaction.
pub fn gas_required(&self, schedule: &Schedule) -> u64 {
Self::gas_required_for(match self.action{Action::Create=>true, Action::Call(_)=>false}, &self.data, schedule)
}
/// Do basic validation, checking for valid signature and minimum gas,
// TODO: consider use in block validation.
#[cfg(test)]
#[cfg(feature = "json-tests")]
pub fn validate(self, schedule: &Schedule, require_low: bool) -> Result<Transaction, Error> {
if require_low && !ec::is_low_s(&self.s) {
return Err(Error::Util(UtilError::Crypto(CryptoError::InvalidSignature)));
}
try!(self.sender());
if self.gas < U256::from(self.gas_required(&schedule)) {
Err(From::from(TransactionError::InvalidGasLimit(OutOfBounds{min: Some(U256::from(self.gas_required(&schedule))), max: None, found: self.gas})))
} else {
Ok(self)
}
}
}
impl Decodable for Action {
fn decode<D>(decoder: &D) -> Result<Self, DecoderError> where D: Decoder {
let rlp = decoder.as_rlp();
if rlp.is_empty() {
Ok(Action::Create)
} else {
Ok(Action::Call(try!(rlp.as_val())))
}
}
}
//impl Decodable for Transaction {
//fn decode<D>(decoder: &D) -> Result<Self, DecoderError> where D: Decoder {
//let d = decoder.as_rlp();
//if d.item_count() != 9 {
//return Err(DecoderError::RlpIncorrectListLen);
//}
//Ok(Transaction {
//nonce: try!(d.val_at(0)),
//gas_price: try!(d.val_at(1)),
//gas: try!(d.val_at(2)),
//action: try!(d.val_at(3)),
//value: try!(d.val_at(4)),
//data: try!(d.val_at(5)),
//v: try!(d.val_at(6)),
//r: try!(d.val_at(7)),
//s: try!(d.val_at(8)),
//hash: RefCell::new(None),
//sender: RefCell::new(None),
//})
//}
//}
#[derive(Debug, Clone)]
pub struct SignedTransaction {
/// Plain Transaction.
transaction: Transaction,
/// The V field of the signature, either 27 or 28; helps describe the point on the curve.
v: u8,
/// The R field of the signature; helps describe the point on the curve.
r: U256,
/// The S field of the signature; helps describe the point on the curve.
s: U256,
/// Cached hash.
hash: RefCell<Option<H256>>,
/// Cached sender.
sender: RefCell<Option<Address>>
}
@@ -309,13 +180,6 @@ impl Decodable for SignedTransaction {
action: try!(d.val_at(3)),
value: try!(d.val_at(4)),
data: try!(d.val_at(5)),
// to remove
v: 0,
r: From::from(0),
s: From::from(0),
hash: RefCell::new(None),
sender: RefCell::new(None)
},
v: try!(d.val_at(6)),
r: try!(d.val_at(7)),
@@ -335,7 +199,7 @@ impl SignedTransaction {
pub fn rlp_append_sealed_transaction(&self, s: &mut RlpStream) {
s.begin_list(9);
s.append(&self.nonce);
s.appned(&self.gas_price);
s.append(&self.gas_price);
s.append(&self.gas);
match self.action {
Action::Create => s.append_empty_data(),
@@ -386,11 +250,27 @@ impl SignedTransaction {
}
}
}
/// Do basic validation, checking for valid signature and minimum gas,
// TODO: consider use in block validation.
#[cfg(test)]
#[cfg(feature = "json-tests")]
pub fn validate(self, schedule: &Schedule, require_low: bool) -> Result<SignedTransaction, Error> {
if require_low && !ec::is_low_s(&self.s) {
return Err(Error::Util(UtilError::Crypto(CryptoError::InvalidSignature)));
}
try!(self.sender());
if self.gas < U256::from(self.gas_required(&schedule)) {
Err(From::from(TransactionError::InvalidGasLimit(OutOfBounds{min: Some(U256::from(self.gas_required(&schedule))), max: None, found: self.gas})))
} else {
Ok(self)
}
}
}
#[test]
fn sender_test() {
let t: Transaction = decode(&FromHex::from_hex("f85f800182520894095e7baea6a6c7c4c2dfeb977efac326af552d870a801ba048b55bfa915ac795c431978d8a6a992b628d557da5ff759b307d495a36649353a0efffd310ac743f371de3b9f7f9cb56c0b28ad43601b4ab949f53faa07bd2c804").unwrap());
let t: SignedTransaction = decode(&FromHex::from_hex("f85f800182520894095e7baea6a6c7c4c2dfeb977efac326af552d870a801ba048b55bfa915ac795c431978d8a6a992b628d557da5ff759b307d495a36649353a0efffd310ac743f371de3b9f7f9cb56c0b28ad43601b4ab949f53faa07bd2c804").unwrap());
assert_eq!(t.data, b"");
assert_eq!(t.gas, U256::from(0x5208u64));
assert_eq!(t.gas_price, U256::from(0x01u64));
@@ -405,6 +285,13 @@ fn sender_test() {
#[test]
fn signing() {
let key = KeyPair::create().unwrap();
let t = Transaction::new_create(U256::from(42u64), b"Hello!".to_vec(), U256::from(3000u64), U256::from(50_000u64), U256::from(1u64)).signed(&key.secret());
let t = Transaction {
action: Action::Create,
nonce: U256::from(42),
gas_price: U256::from(3000),
gas: U256::from(50_000),
value: U256::from(1),
data: b"Hello!".to_vec()
}.sign(&key.secret());
assert_eq!(Address::from(key.public().sha3()), t.sender().unwrap());
}