Struct sp_runtime::generic::SignedPayload

pub struct SignedPayload<Call, Extra: SignedExtension>(_);

A payload that has been signed for an unchecked extrinsics.

Note that the payload that we sign to produce unchecked extrinsic signature is going to be different than the SignaturePayload - so the thing the extrinsic actually contains.

Implementations

impl<Call, Extra> SignedPayload<Call, Extra>where
    Call: Encode,
    Extra: SignedExtension,

pub fn new(call: Call, extra: Extra) -> Result<Self, TransactionValidityError>

Create new SignedPayload.

This function may fail if additional_signed of Extra is not available.

Examples found in repository

src/generic/unchecked_extrinsic.rs (line 141)

	fn check(self, lookup: &Lookup) -> Result<Self::Checked, TransactionValidityError> {
		Ok(match self.signature {
			Some((signed, signature, extra)) => {
				let signed = lookup.lookup(signed)?;
				let raw_payload = SignedPayload::new(self.function, extra)?;
				if !raw_payload.using_encoded(|payload| signature.verify(payload, &signed)) {
					return Err(InvalidTransaction::BadProof.into())
				}

				let (function, extra, _) = raw_payload.deconstruct();
				CheckedExtrinsic { signed: Some((signed, extra)), function }
			},
			None => CheckedExtrinsic { signed: None, function: self.function },
		})
	}

pub fn from_raw(
    call: Call,
    extra: Extra,
    additional_signed: Extra::AdditionalSigned
) -> Self

Create new SignedPayload from raw components.

pub fn deconstruct(self) -> (Call, Extra, Extra::AdditionalSigned)

Deconstruct the payload into it’s components.

Examples found in repository

src/generic/unchecked_extrinsic.rs (line 146)

	fn check(self, lookup: &Lookup) -> Result<Self::Checked, TransactionValidityError> {
		Ok(match self.signature {
			Some((signed, signature, extra)) => {
				let signed = lookup.lookup(signed)?;
				let raw_payload = SignedPayload::new(self.function, extra)?;
				if !raw_payload.using_encoded(|payload| signature.verify(payload, &signed)) {
					return Err(InvalidTransaction::BadProof.into())
				}

				let (function, extra, _) = raw_payload.deconstruct();
				CheckedExtrinsic { signed: Some((signed, extra)), function }
			},
			None => CheckedExtrinsic { signed: None, function: self.function },
		})
	}

Trait Implementations

impl<Call, Extra> Encode for SignedPayload<Call, Extra>where
    Call: Encode,
    Extra: SignedExtension,

fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R

Get an encoded version of this payload.

Payloads longer than 256 bytes are going to be blake2_256-hashed.

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

fn encode_to<T>(&self, dest: &mut T)where
    T: Output + ?Sized,

Convert self to a slice and append it to the destination.

fn encode(&self) -> Vec<u8, Global>

Convert self to an owned vector.

fn encoded_size(&self) -> usize

Calculates the encoded size.

impl<Call, Extra> EncodeLike<SignedPayload<Call, Extra>> for SignedPayload<Call, Extra>where
    Call: Encode,
    Extra: SignedExtension,