add support for polygonscan and snowtrace for abigen (#666)
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Ivan Porto Carrero
GitHub
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a8b0885c25
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@ -15,6 +15,11 @@
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- Fix `fee_history` to first try with `block_count` encoded as a hex `QUANTITY`.
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[#668](https://github.com/gakonst/ethers-rs/pull/668)
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## ethers-contract-abigen
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- Implement snowtrace and polygonscan on par with the etherscan integration
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[#666](https://github.com/gakonst/ethers-rs/pull/666).
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## ethers-solc
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### Unreleased
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@ -23,6 +23,12 @@ pub enum Source {
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/// An address of a mainnet contract that has been verified on Etherscan.io.
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Etherscan(Address),
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/// An address of a mainnet contract that has been verified on Polygonscan.com.
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Polygonscan(Address),
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/// An address of a mainnet contract that has been verified on snowtrace.io.
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Snowtrace(Address),
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/// The package identifier of an npm package with a path to a Truffle
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/// artifact or ABI to be retrieved from `unpkg.io`.
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Npm(String),
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@ -91,7 +97,7 @@ impl Source {
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let url = base.join(source)?;
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match url.scheme() {
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"file" => Ok(Source::local(source.to_string())),
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"file" => Ok(Source::local(source)),
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"http" | "https" => match url.host_str() {
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Some("etherscan.io") => Source::etherscan(
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url.path()
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@ -99,9 +105,23 @@ impl Source {
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.next()
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.ok_or_else(|| anyhow!("HTTP URL does not have a path"))?,
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),
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Some("polygonscan.com") => Source::polygonscan(
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url.path()
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.rsplit('/')
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.next()
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.ok_or_else(|| anyhow!("HTTP URL does not have a path"))?,
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),
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Some("snowtrace.io") => Source::snowtrace(
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url.path()
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.rsplit('/')
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.next()
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.ok_or_else(|| anyhow!("HTTP URL does not have a path"))?,
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),
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_ => Ok(Source::Http(url)),
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},
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"etherscan" => Source::etherscan(url.path()),
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"polygonscan" => Source::polygonscan(url.path()),
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"snowtrace" => Source::snowtrace(url.path()),
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"npm" => Ok(Source::npm(url.path())),
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_ => Err(anyhow!("unsupported URL '{}'", url)),
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}
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@ -130,6 +150,26 @@ impl Source {
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Ok(Source::Etherscan(address))
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}
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/// Creates an Polygonscan source from an address string.
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pub fn polygonscan<S>(address: S) -> Result<Self>
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where
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S: AsRef<str>,
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{
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let address = util::parse_address(address)
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.context("failed to parse address for Polygonscan source")?;
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Ok(Source::Polygonscan(address))
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}
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/// Creates an Snowtrace source from an address string.
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pub fn snowtrace<S>(address: S) -> Result<Self>
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where
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S: AsRef<str>,
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{
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let address =
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util::parse_address(address).context("failed to parse address for Snowtrace source")?;
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Ok(Source::Snowtrace(address))
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}
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/// Creates an Etherscan source from an address string.
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pub fn npm<S>(package_path: S) -> Self
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where
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@ -144,10 +184,12 @@ impl Source {
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pub fn get(&self) -> Result<String> {
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cfg_if! {
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if #[cfg(target_arch = "wasm32")] {
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match self {
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match self {
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Source::Local(path) => get_local_contract(path),
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Source::Http(_) => panic!("Http abi location are not supported for wasm"),
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Source::Etherscan(_) => panic!("Etherscan abi location are not supported for wasm"),
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Source::Polygonscan(_) => panic!("Polygonscan abi location are not supported for wasm"),
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Source::Snowtrace(_) => panic!("Snowtrace abi location are not supported for wasm"),
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Source::Npm(_) => panic!("npm abi location are not supported for wasm"),
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Source::String(abi) => Ok(abi.clone()),
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}
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@ -155,7 +197,9 @@ impl Source {
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match self {
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Source::Local(path) => get_local_contract(path),
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Source::Http(url) => get_http_contract(url),
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Source::Etherscan(address) => get_etherscan_contract(*address),
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Source::Etherscan(address) => get_etherscan_contract(*address, "etherscan.io"),
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Source::Polygonscan(address) => get_etherscan_contract(*address, "polygonscan.com"),
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Source::Snowtrace(address) => get_etherscan_contract(*address, "snowtrace.io"),
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Source::Npm(package) => get_npm_contract(package),
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Source::String(abi) => Ok(abi.clone()),
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}
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@ -211,20 +255,27 @@ fn get_http_contract(url: &Url) -> Result<String> {
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/// Retrieves a contract ABI from the Etherscan HTTP API and wraps it in an
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/// artifact JSON for compatibility with the code generation facilities.
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#[cfg(not(target_arch = "wasm32"))]
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fn get_etherscan_contract(address: Address) -> Result<String> {
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fn get_etherscan_contract(address: Address, domain: &str) -> Result<String> {
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// NOTE: We do not retrieve the bytecode since deploying contracts with the
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// same bytecode is unreliable as the libraries have already linked and
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// probably don't reference anything when deploying on other networks.
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let api_key =
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env::var("ETHERSCAN_API_KEY").map(|key| format!("&apikey={}", key)).unwrap_or_default();
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let api_key = {
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let key_res = match domain {
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"etherscan.io" => env::var("ETHERSCAN_API_KEY").ok(),
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"polygonscan.com" => env::var("POLYGONSCAN_API_KEY").ok(),
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"snowtrace.io" => env::var("SNOWTRACE_API_KEY").ok(),
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_ => None,
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};
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key_res.map(|key| format!("&apikey={}", key)).unwrap_or_default()
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};
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let abi_url = format!(
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"http://api.etherscan.io/api\
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?module=contract&action=getabi&address={:?}&format=raw{}",
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address, api_key,
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"http://api.{}/api?module=contract&action=getabi&address={:?}&format=raw{}",
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domain, address, api_key,
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);
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let abi = util::http_get(&abi_url).context("failed to retrieve ABI from Etherscan.io")?;
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let abi =
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util::http_get(&abi_url).context(format!("failed to retrieve ABI from {}", domain))?;
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Ok(abi)
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}
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@ -256,10 +307,26 @@ mod tests {
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"etherscan:0x0001020304050607080910111213141516171819",
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Source::etherscan("0x0001020304050607080910111213141516171819").unwrap(),
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),
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(
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"polygonscan:0x0001020304050607080910111213141516171819",
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Source::polygonscan("0x0001020304050607080910111213141516171819").unwrap(),
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),
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(
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"snowtrace:0x0001020304050607080910111213141516171819",
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Source::snowtrace("0x0001020304050607080910111213141516171819").unwrap(),
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),
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(
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"https://etherscan.io/address/0x0001020304050607080910111213141516171819",
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Source::etherscan("0x0001020304050607080910111213141516171819").unwrap(),
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),
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(
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"https://polygonscan.com/address/0x0001020304050607080910111213141516171819",
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Source::polygonscan("0x0001020304050607080910111213141516171819").unwrap(),
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),
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(
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"https://snowtrace.io/address/0x0001020304050607080910111213141516171819",
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Source::snowtrace("0x0001020304050607080910111213141516171819").unwrap(),
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),
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(
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"npm:@openzeppelin/contracts@2.5.0/build/contracts/IERC20.json",
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Source::npm("@openzeppelin/contracts@2.5.0/build/contracts/IERC20.json"),
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