ethers-rs/ethers-etherscan/src/contract.rs

541 lines
29 KiB
Rust

use crate::{
source_tree::{SourceTree, SourceTreeEntry},
utils::{deserialize_address_opt, deserialize_stringified_source_code},
Client, EtherscanError, Response, Result,
};
use ethers_core::{
abi::{Abi, Address, RawAbi},
types::{serde_helpers::deserialize_stringified_u64, Bytes},
};
use semver::Version;
use serde::{Deserialize, Serialize};
use std::{collections::HashMap, path::Path};
#[cfg(feature = "ethers-solc")]
use ethers_solc::{artifacts::Settings, EvmVersion, Project, ProjectBuilder, SolcConfig};
#[derive(Clone, Debug, Default, Serialize, Deserialize)]
pub enum SourceCodeLanguage {
#[default]
Solidity,
Vyper,
}
#[derive(Clone, Debug, Serialize, Deserialize)]
pub struct SourceCodeEntry {
pub content: String,
}
impl<T: Into<String>> From<T> for SourceCodeEntry {
fn from(s: T) -> Self {
Self { content: s.into() }
}
}
/// The contract metadata's SourceCode field.
#[derive(Clone, Debug, Serialize, Deserialize)]
#[serde(untagged)]
pub enum SourceCodeMetadata {
/// Contains metadata and path mapped source code.
Metadata {
/// Programming language of the sources.
#[serde(default, skip_serializing_if = "Option::is_none")]
language: Option<SourceCodeLanguage>,
/// Source path => source code
#[serde(default)]
sources: HashMap<String, SourceCodeEntry>,
/// Compiler settings, None if the language is not Solidity.
#[serde(default, skip_serializing_if = "Option::is_none")]
settings: Option<serde_json::Value>,
},
/// Contains only the source code.
SourceCode(String),
}
impl SourceCodeMetadata {
pub fn source_code(&self) -> String {
match self {
Self::Metadata { sources, .. } => {
sources.values().map(|s| s.content.clone()).collect::<Vec<_>>().join("\n")
}
Self::SourceCode(s) => s.clone(),
}
}
pub fn language(&self) -> Option<SourceCodeLanguage> {
match self {
Self::Metadata { language, .. } => language.clone(),
Self::SourceCode(_) => None,
}
}
pub fn sources(&self) -> HashMap<String, SourceCodeEntry> {
match self {
Self::Metadata { sources, .. } => sources.clone(),
Self::SourceCode(s) => HashMap::from([("Contract".into(), s.into())]),
}
}
#[cfg(feature = "ethers-solc")]
pub fn settings(&self) -> Result<Option<Settings>> {
match self {
Self::Metadata { settings, .. } => match settings {
Some(value) => {
if value.is_null() {
Ok(None)
} else {
Ok(Some(serde_json::from_value(value.to_owned())?))
}
}
None => Ok(None),
},
Self::SourceCode(_) => Ok(None),
}
}
#[cfg(not(feature = "ethers-solc"))]
pub fn settings(&self) -> Option<&serde_json::Value> {
match self {
Self::Metadata { settings, .. } => settings.as_ref(),
Self::SourceCode(_) => None,
}
}
}
/// Etherscan contract metadata.
#[derive(Clone, Debug, Serialize, Deserialize)]
#[serde(rename_all = "PascalCase")]
pub struct Metadata {
/// Includes metadata for compiler settings and language.
#[serde(deserialize_with = "deserialize_stringified_source_code")]
pub source_code: SourceCodeMetadata,
/// The ABI of the contract.
#[serde(rename = "ABI")]
pub abi: String,
/// The name of the contract.
pub contract_name: String,
/// The version that this contract was compiled with. If it is a Vyper contract, it will start
/// with "vyper:".
pub compiler_version: String,
/// Whether the optimizer was used. This value should only be 0 or 1.
#[serde(deserialize_with = "deserialize_stringified_u64")]
pub optimization_used: u64,
/// The number of optimizations performed.
#[serde(deserialize_with = "deserialize_stringified_u64")]
pub runs: u64,
/// The constructor arguments the contract was deployed with.
pub constructor_arguments: Bytes,
/// The version of the EVM the contract was deployed in. Can be either a variant of EvmVersion
/// or "Default" which indicates the compiler's default.
#[serde(rename = "EVMVersion")]
pub evm_version: String,
// ?
pub library: String,
/// The license of the contract.
pub license_type: String,
/// Whether this contract is a proxy. This value should only be 0 or 1.
#[serde(deserialize_with = "deserialize_stringified_u64")]
pub proxy: u64,
/// If this contract is a proxy, the address of its implementation.
#[serde(deserialize_with = "deserialize_address_opt")]
pub implementation: Option<Address>,
/// The swarm source of the contract.
pub swarm_source: String,
}
impl Metadata {
/// Returns the contract's source code.
pub fn source_code(&self) -> String {
self.source_code.source_code()
}
/// Returns the contract's programming language.
pub fn language(&self) -> SourceCodeLanguage {
self.source_code.language().unwrap_or_else(|| {
if self.is_vyper() {
SourceCodeLanguage::Vyper
} else {
SourceCodeLanguage::Solidity
}
})
}
/// Returns the contract's path mapped source code.
pub fn sources(&self) -> HashMap<String, SourceCodeEntry> {
self.source_code.sources()
}
/// Parses the Abi String as an [RawAbi] struct.
pub fn raw_abi(&self) -> Result<RawAbi> {
Ok(serde_json::from_str(&self.abi)?)
}
/// Parses the Abi String as an [Abi] struct.
pub fn abi(&self) -> Result<Abi> {
Ok(serde_json::from_str(&self.abi)?)
}
/// Parses the compiler version.
pub fn compiler_version(&self) -> Result<Version> {
let v = &self.compiler_version;
let v = v.strip_prefix("vyper:").unwrap_or(v);
let v = v.strip_prefix('v').unwrap_or(v);
match v.parse() {
Err(e) => {
let v = v.replace('a', "-alpha.");
let v = v.replace('b', "-beta.");
v.parse().map_err(|_| EtherscanError::Unknown(format!("bad compiler version: {e}")))
}
Ok(v) => Ok(v),
}
}
/// Returns whether this contract is a Vyper or a Solidity contract.
pub fn is_vyper(&self) -> bool {
self.compiler_version.starts_with("vyper:")
}
/// Maps this contract's sources to a [SourceTreeEntry] vector.
pub fn source_entries(&self) -> Vec<SourceTreeEntry> {
let root = Path::new(&self.contract_name);
self.sources()
.into_iter()
.map(|(path, entry)| {
let path = root.join(path);
SourceTreeEntry { path, contents: entry.content }
})
.collect()
}
/// Returns the source tree of this contract's sources.
pub fn source_tree(&self) -> SourceTree {
SourceTree { entries: self.source_entries() }
}
/// Returns the contract's compiler settings.
#[cfg(feature = "ethers-solc")]
pub fn settings(&self) -> Result<Settings> {
let mut settings = self.source_code.settings()?.unwrap_or_default();
if self.optimization_used == 1 && !settings.optimizer.enabled.unwrap_or_default() {
settings.optimizer.enable();
settings.optimizer.runs(self.runs as usize);
}
settings.evm_version = self.evm_version()?;
Ok(settings)
}
/// Creates a Solc [ProjectBuilder] with this contract's settings.
#[cfg(feature = "ethers-solc")]
pub fn project_builder(&self) -> Result<ProjectBuilder> {
let solc_config = SolcConfig::builder().settings(self.settings()?).build();
Ok(Project::builder().solc_config(solc_config))
}
/// Parses the EVM version.
#[cfg(feature = "ethers-solc")]
pub fn evm_version(&self) -> Result<Option<EvmVersion>> {
match self.evm_version.as_str() {
"" | "Default" => {
Ok(EvmVersion::default().normalize_version(&self.compiler_version()?))
}
_ => {
let evm_version = self
.evm_version
.parse()
.map_err(|e| EtherscanError::Unknown(format!("bad evm version: {e}")))?;
Ok(Some(evm_version))
}
}
}
}
#[derive(Clone, Debug, Serialize, Deserialize)]
#[serde(transparent)]
pub struct ContractMetadata {
pub items: Vec<Metadata>,
}
impl IntoIterator for ContractMetadata {
type Item = Metadata;
type IntoIter = std::vec::IntoIter<Metadata>;
fn into_iter(self) -> Self::IntoIter {
self.items.into_iter()
}
}
impl ContractMetadata {
/// Returns the ABI of all contracts.
pub fn abis(&self) -> Result<Vec<Abi>> {
self.items.iter().map(|c| c.abi()).collect()
}
/// Returns the raw ABI of all contracts.
pub fn raw_abis(&self) -> Result<Vec<RawAbi>> {
self.items.iter().map(|c| c.raw_abi()).collect()
}
/// Returns the combined source code of all contracts.
pub fn source_code(&self) -> String {
self.items.iter().map(|c| c.source_code()).collect::<Vec<_>>().join("\n")
}
/// Returns the combined [SourceTree] of all contracts.
pub fn source_tree(&self) -> SourceTree {
SourceTree { entries: self.items.iter().flat_map(|item| item.source_entries()).collect() }
}
}
impl Client {
/// Fetches a verified contract's ABI.
///
/// # Example
///
/// ```no_run
/// # use ethers_etherscan::Client;
/// # use ethers_core::types::Chain;
///
/// # #[tokio::main]
/// # async fn main() {
/// let client = Client::new(Chain::Mainnet, "API_KEY").unwrap();
/// let abi = client
/// .contract_abi("0xBB9bc244D798123fDe783fCc1C72d3Bb8C189413".parse().unwrap())
/// .await.unwrap();
/// # }
/// ```
pub async fn contract_abi(&self, address: Address) -> Result<Abi> {
// apply caching
if let Some(ref cache) = self.cache {
// If this is None, then we have a cache miss
if let Some(src) = cache.get_abi(address) {
// If this is None, then the contract is not verified
return match src {
Some(src) => Ok(src),
None => Err(EtherscanError::ContractCodeNotVerified(address)),
}
}
}
let query = self.create_query("contract", "getabi", HashMap::from([("address", address)]));
let resp: Response<String> = self.get_json(&query).await?;
if resp.result.starts_with("Max rate limit reached") {
return Err(EtherscanError::RateLimitExceeded)
}
if resp.result.starts_with("Contract source code not verified") {
if let Some(ref cache) = self.cache {
cache.set_abi(address, None);
}
return Err(EtherscanError::ContractCodeNotVerified(address))
}
let abi = serde_json::from_str(&resp.result)?;
if let Some(ref cache) = self.cache {
cache.set_abi(address, Some(&abi));
}
Ok(abi)
}
/// Fetches a contract's verified source code and its metadata.
///
/// # Example
///
/// ```no_run
/// # use ethers_etherscan::Client;
/// # use ethers_core::types::Chain;
///
/// # #[tokio::main]
/// # async fn main() {
/// let client = Client::new(Chain::Mainnet, "API_KEY").unwrap();
/// let meta = client
/// .contract_source_code("0xBB9bc244D798123fDe783fCc1C72d3Bb8C189413".parse().unwrap())
/// .await.unwrap();
/// let code = meta.source_code();
/// # }
/// ```
pub async fn contract_source_code(&self, address: Address) -> Result<ContractMetadata> {
// apply caching
if let Some(ref cache) = self.cache {
// If this is None, then we have a cache miss
if let Some(src) = cache.get_source(address) {
// If this is None, then the contract is not verified
return match src {
Some(src) => Ok(src),
None => Err(EtherscanError::ContractCodeNotVerified(address)),
}
}
}
let query =
self.create_query("contract", "getsourcecode", HashMap::from([("address", address)]));
let response = self.get(&query).await?;
// Source code is not verified
if response.contains("Contract source code not verified") {
if let Some(ref cache) = self.cache {
cache.set_source(address, None);
}
return Err(EtherscanError::ContractCodeNotVerified(address))
}
let response: Response<ContractMetadata> = self.sanitize_response(response)?;
let result = response.result;
if let Some(ref cache) = self.cache {
cache.set_source(address, Some(&result));
}
Ok(result)
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::tests::run_at_least_duration;
use ethers_core::types::Chain;
use serial_test::serial;
use std::time::Duration;
/// Abi of [0xBB9bc244D798123fDe783fCc1C72d3Bb8C189413](https://api.etherscan.io/api?module=contract&action=getsourcecode&address=0xBB9bc244D798123fDe783fCc1C72d3Bb8C189413).
const DAO_ABI: &str = "[{\"constant\":true,\"inputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"name\":\"proposals\",\"outputs\":[{\"name\":\"recipient\",\"type\":\"address\"},{\"name\":\"amount\",\"type\":\"uint256\"},{\"name\":\"description\",\"type\":\"string\"},{\"name\":\"votingDeadline\",\"type\":\"uint256\"},{\"name\":\"open\",\"type\":\"bool\"},{\"name\":\"proposalPassed\",\"type\":\"bool\"},{\"name\":\"proposalHash\",\"type\":\"bytes32\"},{\"name\":\"proposalDeposit\",\"type\":\"uint256\"},{\"name\":\"newCurator\",\"type\":\"bool\"},{\"name\":\"yea\",\"type\":\"uint256\"},{\"name\":\"nay\",\"type\":\"uint256\"},{\"name\":\"creator\",\"type\":\"address\"}],\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_spender\",\"type\":\"address\"},{\"name\":\"_amount\",\"type\":\"uint256\"}],\"name\":\"approve\",\"outputs\":[{\"name\":\"success\",\"type\":\"bool\"}],\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"minTokensToCreate\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"rewardAccount\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"daoCreator\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"totalSupply\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"divisor\",\"outputs\":[{\"name\":\"divisor\",\"type\":\"uint256\"}],\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"extraBalance\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_proposalID\",\"type\":\"uint256\"},{\"name\":\"_transactionData\",\"type\":\"bytes\"}],\"name\":\"executeProposal\",\"outputs\":[{\"name\":\"_success\",\"type\":\"bool\"}],\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_from\",\"type\":\"address\"},{\"name\":\"_to\",\"type\":\"address\"},{\"name\":\"_value\",\"type\":\"uint256\"}],\"name\":\"transferFrom\",\"outputs\":[{\"name\":\"success\",\"type\":\"bool\"}],\"type\":\"function\"},{\"constant\":false,\"inputs\":[],\"name\":\"unblockMe\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"totalRewardToken\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"actualBalance\",\"outputs\":[{\"name\":\"_actualBalance\",\"type\":\"uint256\"}],\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"closingTime\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"\",\"type\":\"address\"}],\"name\":\"allowedRecipients\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_to\",\"type\":\"address\"},{\"name\":\"_value\",\"type\":\"uint256\"}],\"name\":\"transferWithoutReward\",\"outputs\":[{\"name\":\"success\",\"type\":\"bool\"}],\"type\":\"function\"},{\"constant\":false,\"inputs\":[],\"name\":\"refund\",\"outputs\":[],\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_recipient\",\"type\":\"address\"},{\"name\":\"_amount\",\"type\":\"uint256\"},{\"name\":\"_description\",\"type\":\"string\"},{\"name\":\"_transactionData\",\"type\":\"bytes\"},{\"name\":\"_debatingPeriod\",\"type\":\"uint256\"},{\"name\":\"_newCurator\",\"type\":\"bool\"}],\"name\":\"newProposal\",\"outputs\":[{\"name\":\"_proposalID\",\"type\":\"uint256\"}],\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"\",\"type\":\"address\"}],\"name\":\"DAOpaidOut\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"minQuorumDivisor\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_newContract\",\"type\":\"address\"}],\"name\":\"newContract\",\"outputs\":[],\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"_owner\",\"type\":\"address\"}],\"name\":\"balanceOf\",\"outputs\":[{\"name\":\"balance\",\"type\":\"uint256\"}],\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_recipient\",\"type\":\"address\"},{\"name\":\"_allowed\",\"type\":\"bool\"}],\"name\":\"changeAllowedRecipients\",\"outputs\":[{\"name\":\"_success\",\"type\":\"bool\"}],\"type\":\"function\"},{\"constant\":false,\"inputs\":[],\"name\":\"halveMinQuorum\",\"outputs\":[{\"name\":\"_success\",\"type\":\"bool\"}],\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"\",\"type\":\"address\"}],\"name\":\"paidOut\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_proposalID\",\"type\":\"uint256\"},{\"name\":\"_newCurator\",\"type\":\"address\"}],\"name\":\"splitDAO\",\"outputs\":[{\"name\":\"_success\",\"type\":\"bool\"}],\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"DAOrewardAccount\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"proposalDeposit\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"numberOfProposals\",\"outputs\":[{\"name\":\"_numberOfProposals\",\"type\":\"uint256\"}],\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"lastTimeMinQuorumMet\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_toMembers\",\"type\":\"bool\"}],\"name\":\"retrieveDAOReward\",\"outputs\":[{\"name\":\"_success\",\"type\":\"bool\"}],\"type\":\"function\"},{\"constant\":false,\"inputs\":[],\"name\":\"receiveEther\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_to\",\"type\":\"address\"},{\"name\":\"_value\",\"type\":\"uint256\"}],\"name\":\"transfer\",\"outputs\":[{\"name\":\"success\",\"type\":\"bool\"}],\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"isFueled\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_tokenHolder\",\"type\":\"address\"}],\"name\":\"createTokenProxy\",\"outputs\":[{\"name\":\"success\",\"type\":\"bool\"}],\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"_proposalID\",\"type\":\"uint256\"}],\"name\":\"getNewDAOAddress\",\"outputs\":[{\"name\":\"_newDAO\",\"type\":\"address\"}],\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_proposalID\",\"type\":\"uint256\"},{\"name\":\"_supportsProposal\",\"type\":\"bool\"}],\"name\":\"vote\",\"outputs\":[{\"name\":\"_voteID\",\"type\":\"uint256\"}],\"type\":\"function\"},{\"constant\":false,\"inputs\":[],\"name\":\"getMyReward\",\"outputs\":[{\"name\":\"_success\",\"type\":\"bool\"}],\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"\",\"type\":\"address\"}],\"name\":\"rewardToken\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_from\",\"type\":\"address\"},{\"name\":\"_to\",\"type\":\"address\"},{\"name\":\"_value\",\"type\":\"uint256\"}],\"name\":\"transferFromWithoutReward\",\"outputs\":[{\"name\":\"success\",\"type\":\"bool\"}],\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"_owner\",\"type\":\"address\"},{\"name\":\"_spender\",\"type\":\"address\"}],\"name\":\"allowance\",\"outputs\":[{\"name\":\"remaining\",\"type\":\"uint256\"}],\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"_proposalDeposit\",\"type\":\"uint256\"}],\"name\":\"changeProposalDeposit\",\"outputs\":[],\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"\",\"type\":\"address\"}],\"name\":\"blocked\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"curator\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"_proposalID\",\"type\":\"uint256\"},{\"name\":\"_recipient\",\"type\":\"address\"},{\"name\":\"_amount\",\"type\":\"uint256\"},{\"name\":\"_transactionData\",\"type\":\"bytes\"}],\"name\":\"checkProposalCode\",\"outputs\":[{\"name\":\"_codeChecksOut\",\"type\":\"bool\"}],\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"privateCreation\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"type\":\"function\"},{\"inputs\":[{\"name\":\"_curator\",\"type\":\"address\"},{\"name\":\"_daoCreator\",\"type\":\"address\"},{\"name\":\"_proposalDeposit\",\"type\":\"uint256\"},{\"name\":\"_minTokensToCreate\",\"type\":\"uint256\"},{\"name\":\"_closingTime\",\"type\":\"uint256\"},{\"name\":\"_privateCreation\",\"type\":\"address\"}],\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"_from\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"_to\",\"type\":\"address\"},{\"indexed\":false,\"name\":\"_amount\",\"type\":\"uint256\"}],\"name\":\"Transfer\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"_owner\",\"type\":\"address\"},{\"indexed\":true,\"name\":\"_spender\",\"type\":\"address\"},{\"indexed\":false,\"name\":\"_amount\",\"type\":\"uint256\"}],\"name\":\"Approval\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"name\":\"value\",\"type\":\"uint256\"}],\"name\":\"FuelingToDate\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"to\",\"type\":\"address\"},{\"indexed\":false,\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"CreatedToken\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"to\",\"type\":\"address\"},{\"indexed\":false,\"name\":\"value\",\"type\":\"uint256\"}],\"name\":\"Refund\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"proposalID\",\"type\":\"uint256\"},{\"indexed\":false,\"name\":\"recipient\",\"type\":\"address\"},{\"indexed\":false,\"name\":\"amount\",\"type\":\"uint256\"},{\"indexed\":false,\"name\":\"newCurator\",\"type\":\"bool\"},{\"indexed\":false,\"name\":\"description\",\"type\":\"string\"}],\"name\":\"ProposalAdded\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"proposalID\",\"type\":\"uint256\"},{\"indexed\":false,\"name\":\"position\",\"type\":\"bool\"},{\"indexed\":true,\"name\":\"voter\",\"type\":\"address\"}],\"name\":\"Voted\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"proposalID\",\"type\":\"uint256\"},{\"indexed\":false,\"name\":\"result\",\"type\":\"bool\"},{\"indexed\":false,\"name\":\"quorum\",\"type\":\"uint256\"}],\"name\":\"ProposalTallied\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"_newCurator\",\"type\":\"address\"}],\"name\":\"NewCurator\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"_recipient\",\"type\":\"address\"},{\"indexed\":false,\"name\":\"_allowed\",\"type\":\"bool\"}],\"name\":\"AllowedRecipientChanged\",\"type\":\"event\"}]";
#[allow(unused)]
fn init_tracing() {
tracing_subscriber::fmt()
.with_env_filter(tracing_subscriber::EnvFilter::from_default_env())
.init();
}
#[tokio::test]
#[serial]
#[ignore]
async fn can_fetch_ftm_contract_abi() {
init_tracing();
run_at_least_duration(Duration::from_millis(250), async {
let client = Client::new_from_env(Chain::Fantom).unwrap();
let _abi = client
.contract_abi("0x80AA7cb0006d5DDD91cce684229Ac6e398864606".parse().unwrap())
.await
.unwrap();
})
.await;
}
#[tokio::test]
#[serial]
#[ignore]
async fn can_fetch_contract_abi() {
init_tracing();
run_at_least_duration(Duration::from_millis(250), async {
let client = Client::new_from_env(Chain::Mainnet).unwrap();
let abi = client
.contract_abi("0xBB9bc244D798123fDe783fCc1C72d3Bb8C189413".parse().unwrap())
.await
.unwrap();
assert_eq!(abi, serde_json::from_str(DAO_ABI).unwrap());
})
.await;
}
#[tokio::test]
#[serial]
#[ignore]
async fn can_fetch_contract_source_code() {
init_tracing();
run_at_least_duration(Duration::from_millis(250), async {
let client = Client::new_from_env(Chain::Mainnet).unwrap();
let meta = client
.contract_source_code("0xBB9bc244D798123fDe783fCc1C72d3Bb8C189413".parse().unwrap())
.await
.unwrap();
assert_eq!(meta.items.len(), 1);
let item = &meta.items[0];
assert!(matches!(item.source_code, SourceCodeMetadata::SourceCode(_)));
assert_eq!(item.source_code.sources().len(), 1);
assert_eq!(item.abi().unwrap(), serde_json::from_str(DAO_ABI).unwrap());
})
.await
}
#[tokio::test]
#[serial]
#[ignore]
async fn can_get_error_on_unverified_contract() {
init_tracing();
run_at_least_duration(Duration::from_millis(250), async {
let client = Client::new_from_env(Chain::Mainnet).unwrap();
let addr = "0xb5c31a0e22cae98ac08233e512bd627885aa24e5".parse().unwrap();
let err = client.contract_source_code(addr).await.unwrap_err();
assert!(matches!(err, EtherscanError::ContractCodeNotVerified(_)));
})
.await
}
/// Query a contract that has a single string source entry instead of underlying JSON metadata.
#[tokio::test]
#[serial]
#[ignore]
async fn can_fetch_contract_source_tree_for_singleton_contract() {
init_tracing();
run_at_least_duration(Duration::from_millis(250), async {
let client = Client::new_from_env(Chain::Mainnet).unwrap();
let meta = client
.contract_source_code("0xBB9bc244D798123fDe783fCc1C72d3Bb8C189413".parse().unwrap())
.await
.unwrap();
assert_eq!(meta.items.len(), 1);
let item = &meta.items[0];
assert!(matches!(item.source_code, SourceCodeMetadata::SourceCode(_)));
assert_eq!(item.source_code.sources().len(), 1);
assert_eq!(item.abi().unwrap(), serde_json::from_str(DAO_ABI).unwrap());
})
.await
}
/// Query a contract that has many source entries as JSON metadata and ensure they are
/// reflected.
#[tokio::test]
#[serial]
#[ignore]
async fn can_fetch_contract_source_tree_for_multi_entry_contract() {
init_tracing();
run_at_least_duration(Duration::from_millis(250), async {
let client = Client::new_from_env(Chain::Mainnet).unwrap();
let meta = client
.contract_source_code("0x8d04a8c79cEB0889Bdd12acdF3Fa9D207eD3Ff63".parse().unwrap())
.await
.unwrap();
assert_eq!(meta.items.len(), 1);
assert!(matches!(meta.items[0].source_code, SourceCodeMetadata::Metadata { .. }));
let source_tree = meta.source_tree();
assert_eq!(source_tree.entries.len(), 15);
})
.await
}
}