templar_common/oracle/redstone/config/
mod.rs

1use near_sdk::near;
2use redstone::{ConfigFactory, SignerAddress, TimestampMillis};
3
4mod config_prod;
5pub use config_prod::prod;
6mod config_test;
7pub use config_test::test;
8
9pub type SignerAddressBs = [u8; 20];
10
11#[derive(Debug, Clone)]
12#[near(serializers = [borsh, json])]
13pub struct Config {
14    pub signer_count_threshold: u8,
15    pub signers: Vec<SignerAddressBs>,
16    pub max_timestamp_delay_ms: u64,
17    pub max_timestamp_ahead_ms: u64,
18    pub min_interval_between_updates_ms: u64,
19}
20
21pub const DATA_STALENESS: TimestampMillis = TimestampMillis::from_millis(30 * 60 * 60 * 1000);
22
23pub const FEED_TTL_SECS: u32 = 2 * 24 * 60 * 60;
24pub const FEED_TTL_THRESHOLD: u32 = FEED_TTL_SECS / 5;
25pub const FEED_TTL_EXTEND_TO: u32 = FEED_TTL_SECS * 3 / 10;
26
27pub struct NearCrypto;
28
29impl redstone::Crypto for NearCrypto {
30    type KeccakOutput = [u8; 32];
31
32    fn keccak256(&mut self, input: impl AsRef<[u8]>) -> Self::KeccakOutput {
33        near_sdk::env::keccak256_array(input.as_ref())
34    }
35
36    fn recover_public_key(
37        &mut self,
38        recovery_byte: u8,
39        signature_bytes: impl AsRef<[u8]>,
40        message_hash: Self::KeccakOutput,
41    ) -> Result<redstone::Bytes, redstone::CryptoError> {
42        use k256::ecdsa::{RecoveryId, Signature, VerifyingKey};
43
44        let signature_bytes = signature_bytes.as_ref();
45        let signature = Signature::try_from(signature_bytes)
46            .map_err(|_| redstone::CryptoError::Signature(signature_bytes.to_vec()))?;
47        let r_id = RecoveryId::try_from(recovery_byte)
48            .map_err(|_| redstone::CryptoError::RecoveryByte(recovery_byte))?;
49        let result = VerifyingKey::recover_from_prehash(&message_hash, &signature, r_id)
50            .map_err(|_| redstone::CryptoError::RecoverPreHash)?;
51
52        Ok(result.to_encoded_point(false).to_bytes().to_vec().into())
53    }
54}
55
56impl ConfigFactory<(), NearCrypto> for Config {
57    fn signer_count_threshold(&self) -> u8 {
58        self.signer_count_threshold
59    }
60
61    fn redstone_signers(&self) -> Vec<SignerAddress> {
62        self.signers.iter().map(|s| s.to_vec().into()).collect()
63    }
64
65    fn max_timestamp_delay_ms(&self) -> u64 {
66        self.max_timestamp_delay_ms
67    }
68
69    fn max_timestamp_ahead_ms(&self) -> u64 {
70        self.max_timestamp_ahead_ms
71    }
72
73    fn make_crypto((): ()) -> NearCrypto {
74        NearCrypto
75    }
76}
templar_common/oracle/redstone/config/mod.rs

templar_common/oracle/redstone/config/
mod.rs
