mirror of
https://github.com/logos-blockchain/logos-execution-zone.git
synced 2026-06-28 01:50:01 +00:00
4bcffafe27
BREAKING CHANGE:
- Crate `nssa` renamed to `lee`; update `Cargo.toml` dependencies from `nssa = { workspace = true }` to `lee = { workspace = true }`.
- Crate `nssa_core` renamed to `lee_core`; update similarly.
- Crate `key_protocol` moved under `lee`; update `Cargo.toml` dependencies from `key_protocol = { workspace = true }` to `lee_key_protocol = { workspace = true }`.
- Type `NSSATransaction` (in `common`) renamed to `LeeTransaction`.
- Error type `nssa::error::NssaError` renamed to `lee::error::LeeError`.
- Error type `nssa_core::error::NssaCoreError` renamed to `lee_core::error::LeeCoreError`.
- All `use nssa::` and `use nssa_core::` import paths must be updated to `use lee::` and `use lee_core::` respectively.
- Guest programs must replace `write_nssa_outputs` with `write_lee_outputs`.
- The sequencer RocksDB column family for the chain state was renamed. Existing databases are incompatible and must be wiped before running the new version.
- Domain separators updated: `"NSSA_seed"` → `"LEE_seed"` (key derivation), `"NSSA/v0.2/KDF-SHA256/"` → `"LEE/v0.2/KDF-SHA256/"` (encryption KDF), `"/NSSA/v0.2/AccountId/PDA/"` →
`"/LEE/v0.2/AccountId/PDA/"` (public PDA address derivation). All previously derived keys, encrypted outputs, and public PDA addresses are invalidated.
73 lines
2.3 KiB
Rust
73 lines
2.3 KiB
Rust
//! Time-locked transfer program.
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//!
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//! Demonstrates how a program can include a clock account among its inputs and use the on-chain
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//! timestamp in its logic. The transfer only executes when the clock timestamp is at or past a
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//! caller-supplied deadline; otherwise the program panics.
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//!
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//! Expected pre-states (in order):
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//! 0 - sender account (authorized)
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//! 1 - receiver account
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//! 2 - clock account (read-only, e.g. `CLOCK_01`).
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use clock_core::{CLOCK_01_PROGRAM_ACCOUNT_ID, ClockAccountData};
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use lee_core::program::{AccountPostState, ProgramInput, ProgramOutput, read_lee_inputs};
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/// (`amount`, `deadline_timestamp`).
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type Instruction = (u128, u64);
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fn main() {
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let (
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ProgramInput {
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self_program_id,
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caller_program_id,
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pre_states,
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instruction: (amount, deadline),
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},
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instruction_words,
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) = read_lee_inputs::<Instruction>();
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let Ok([sender_pre, receiver_pre, clock_pre]) = <[_; 3]>::try_from(pre_states) else {
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panic!("Expected exactly 3 input accounts: sender, receiver, clock");
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};
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// Check the clock account is the system clock account
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assert_eq!(clock_pre.account_id, CLOCK_01_PROGRAM_ACCOUNT_ID);
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// Read the current timestamp from the clock account.
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let clock_data = ClockAccountData::from_bytes(&clock_pre.account.data.clone().into_inner());
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assert!(
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clock_data.timestamp >= deadline,
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"Transfer is time-locked until timestamp {deadline}, current is {}",
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clock_data.timestamp,
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);
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let mut sender_post = sender_pre.account.clone();
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let mut receiver_post = receiver_pre.account.clone();
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sender_post.balance = sender_post
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.balance
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.checked_sub(amount)
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.expect("Insufficient balance");
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receiver_post.balance = receiver_post
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.balance
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.checked_add(amount)
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.expect("Balance overflow");
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// Clock account is read-only: post state equals pre state.
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let clock_post = clock_pre.account.clone();
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ProgramOutput::new(
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self_program_id,
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caller_program_id,
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instruction_words,
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vec![sender_pre, receiver_pre, clock_pre],
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vec![
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AccountPostState::new(sender_post),
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AccountPostState::new(receiver_post),
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AccountPostState::new(clock_post),
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],
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)
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.write();
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}
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