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| [package] | ||
| name = "chainlink_solana_data_streams" | ||
| description = "Chainlink Data Streams Uility for Solana. Can be used on-chain/off-chain to get `verify` transaction instructions." | ||
| version = "1.0.0" | ||
| edition = "2018" | ||
| license = "MIT" | ||
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| [lib] | ||
| crate-type = ["cdylib", "lib"] | ||
| name = "chainlink_solana_data_streams" | ||
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| [features] | ||
| default = [] | ||
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| [dependencies] | ||
| borsh = "0.10.3" | ||
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| [target.'cfg(target_os = "solana")'.dependencies] | ||
| solana-program = "1.17" | ||
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| [target.'cfg(not(target_os = "solana"))'.dependencies] | ||
| solana-sdk = "1.17" | ||
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| [dev-dependencies] | ||
| solana-sdk = "1.17" |
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| The MIT License (MIT) | ||
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| Copyright (c) 2018 SmartContract ChainLink, Ltd. | ||
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| Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| of this software and associated documentation files (the "Software"), to deal | ||
| in the Software without restriction, including without limitation the rights | ||
| to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| copies of the Software, and to permit persons to whom the Software is | ||
| furnished to do so, subject to the following conditions: | ||
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| The above copyright notice and this permission notice shall be included in | ||
| all copies or substantial portions of the Software. | ||
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| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| THE SOFTWARE. |
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| # chainlink-solana-data-streams | ||
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| This tool is provided under an MIT license and is for convenience and illustration purposes only. |
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contracts/crates/chainlink-solana-data-streams/src/lib.rs
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| //! Chainlink Data Streams Client for Solana | ||
| mod solana { | ||
| #[cfg(not(target_os = "solana"))] | ||
| pub use solana_sdk::{ | ||
| instruction::{AccountMeta, Instruction}, | ||
| pubkey::Pubkey, | ||
| }; | ||
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| #[cfg(target_os = "solana")] | ||
| pub use solana_program::{ | ||
| instruction::{AccountMeta, Instruction}, | ||
| pubkey::Pubkey, | ||
| }; | ||
| } | ||
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| use crate::solana::{AccountMeta, Instruction, Pubkey}; | ||
| use borsh::{BorshDeserialize, BorshSerialize}; | ||
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| /// Program function name discriminators | ||
| pub mod discriminator { | ||
| pub const VERIFY: [u8; 8] = [133, 161, 141, 48, 120, 198, 88, 150]; | ||
| } | ||
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| #[derive(BorshSerialize, BorshDeserialize)] | ||
| struct VerifyParams { | ||
| signed_report: Vec<u8>, | ||
| } | ||
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| /// A helper struct for creating Verifier program instructions | ||
| pub struct VerifierInstructions; | ||
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| impl VerifierInstructions { | ||
| /// Creates a verify instruction. | ||
| /// | ||
| /// # Parameters: | ||
| /// | ||
| /// * `program_id` - The public key of the verifier program. | ||
| /// * `verifier_account` - The public key of the verifier account. The function [`Self::get_verifier_config_pda`] can be used to calculate this. | ||
| /// * `access_controller_account` - The public key of the access controller account. | ||
| /// * `user` - The public key of the user - this account must be a signer | ||
| /// * `report_config_account` - The public key of the report configuration account. The function [`Self::get_config_pda`] can be used to calculate this. | ||
| /// * `signed_report` - The signed report data as a vector of bytes. Returned from data streams API/WS | ||
| /// | ||
| /// # Returns | ||
| /// | ||
| /// Returns an `Instruction` object that can be sent to the Solana runtime. | ||
| pub fn verify( | ||
| program_id: &Pubkey, | ||
| verifier_account: &Pubkey, | ||
| access_controller_account: &Pubkey, | ||
| user: &Pubkey, | ||
| report_config_account: &Pubkey, | ||
| signed_report: Vec<u8>, | ||
| ) -> Instruction { | ||
| let accounts = vec![ | ||
| AccountMeta::new_readonly(*verifier_account, false), | ||
| AccountMeta::new_readonly(*access_controller_account, false), | ||
| AccountMeta::new_readonly(*user, true), | ||
| AccountMeta::new_readonly(*report_config_account, false), | ||
| ]; | ||
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| // 8 bytes for discriminator | ||
| // 4 bytes size of the length prefix for the signed_report vector | ||
| let mut instruction_data = Vec::with_capacity(8 + 4 + signed_report.len()); | ||
| instruction_data.extend_from_slice(&discriminator::VERIFY); | ||
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| let params = VerifyParams { signed_report }; | ||
| let param_data = params.try_to_vec().unwrap(); | ||
| instruction_data.extend_from_slice(¶m_data); | ||
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| Instruction { | ||
| program_id: *program_id, | ||
| accounts, | ||
| data: instruction_data, | ||
| } | ||
| } | ||
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| /// Helper to compute the verifier config PDA account. | ||
| pub fn get_verifier_config_pda(program_id: &Pubkey) -> Pubkey { | ||
| Pubkey::find_program_address(&[b"verifier"], program_id).0 | ||
| } | ||
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| /// Helper to compute the report config PDA account. This uses the first 32 bytes of the | ||
| /// uncompressed report as the seed. This is validated within the verifier program | ||
| pub fn get_config_pda(report: &[u8], program_id: &Pubkey) -> Pubkey { | ||
| Pubkey::find_program_address(&[&report[..32]], program_id).0 | ||
| } | ||
| } | ||
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| #[cfg(test)] | ||
| mod tests { | ||
| use super::*; | ||
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| #[test] | ||
| fn test_create_verify_instruction() { | ||
| let program_id = Pubkey::new_unique(); | ||
| let verifier = Pubkey::new_unique(); | ||
| let controller = Pubkey::new_unique(); | ||
| let user = Pubkey::new_unique(); | ||
| let report = vec![1u8; 64]; | ||
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| // Calculate expected PDA before moving report | ||
| let expected_config = VerifierInstructions::get_config_pda(&report, &program_id); | ||
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| let ix = VerifierInstructions::verify( | ||
| &program_id, | ||
| &verifier, | ||
| &controller, | ||
| &user, | ||
| &expected_config, | ||
| report, | ||
| ); | ||
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| assert!(ix.data.starts_with(&discriminator::VERIFY)); | ||
| assert_eq!(ix.program_id, program_id); | ||
| assert_eq!(ix.accounts.len(), 4); | ||
| assert!(ix.accounts[2].is_signer); | ||
| assert_eq!(ix.accounts[3].pubkey, expected_config); | ||
| } | ||
| } |
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