wasm_multisig/
transaction.rs

1/// A struct representing a transaction with a nonce and associated data.
2/// The `Transaction` structure is used to manage operations with specific data and unique nonces.
3pub struct Transaction {
4    pub nonce: u64,      // A unique identifier for the transaction to prevent replay attacks
5    pub data: Vec<u8>,   // The transaction's associated data (with a limit on size)
6}
7
8impl Transaction {
9    /// Creates a new `Transaction` with the given data and nonce.
10    /// The data size is limited to 1024 bytes to ensure the transaction payload is reasonable.
11    ///
12    /// # Arguments
13    /// * `data` - A vector of bytes representing the transaction's data.
14    /// * `nonce` - A unique number (nonce) to differentiate this transaction from others.
15    ///
16    /// # Panics
17    /// Panics if the `data` length exceeds 1024 bytes.
18    pub fn new(data: Vec<u8>, nonce: u64) -> Self {
19        assert!(data.len() < 1024, "Data too large");  // Ensure the data size is within the limit
20        Transaction { data, nonce }
21    }
22
23    /// Validates whether the provided nonce matches the transaction's nonce.
24    ///
25    /// # Arguments
26    /// * `current_nonce` - The nonce to be compared with the transaction's nonce.
27    ///
28    /// # Returns
29    /// * `Ok(())` if the nonce is valid.
30    /// * `Err(&'static str)` if the nonce does not match, with an error message.
31    pub fn is_valid_nonce(&self, current_nonce: u64) -> Result<(), &'static str> {
32        if self.nonce != current_nonce {
33            Err("Invalid nonce")  // Return an error if the nonces do not match
34        } else {
35            Ok(())  // Return Ok if the nonce matches
36        }
37    }
38}
wasm_multisig/transaction.rs

wasm_multisig/
transaction.rs
