openethereum/evmbin/src/main.rs

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// Copyright 2015-2017 Parity Technologies (UK) Ltd.
// This file is part of Parity.
// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
//! Parity EVM interpreter binary.
#![warn(missing_docs)]
extern crate ethcore;
extern crate ethjson;
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extern crate rustc_hex;
extern crate serde;
#[macro_use]
extern crate serde_derive;
extern crate docopt;
extern crate ethcore_util as util;
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extern crate ethcore_bigint as bigint;
extern crate ethcore_bytes as bytes;
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extern crate vm;
extern crate evm;
extern crate panic_hook;
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use std::sync::Arc;
use std::{fmt, fs};
use std::path::PathBuf;
use docopt::Docopt;
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use rustc_hex::FromHex;
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use bigint::prelude::U256;
use util::Address;
use bytes::Bytes;
use ethcore::spec;
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use vm::{ActionParams, CallType};
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mod info;
mod display;
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use info::Informant;
const USAGE: &'static str = r#"
EVM implementation for Parity.
Copyright 2016, 2017 Parity Technologies (UK) Ltd
Usage:
parity-evm state-test <file> [--json --only NAME --chain CHAIN]
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parity-evm stats [options]
parity-evm [options]
parity-evm [-h | --help]
Transaction options:
--code CODE Contract code as hex (without 0x).
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--to ADDRESS Recipient address (without 0x).
--from ADDRESS Sender address (without 0x).
--input DATA Input data as hex (without 0x).
--gas GAS Supplied gas as hex (without 0x).
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--gas-price WEI Supplied gas price as hex (without 0x).
State test options:
--only NAME Runs only a single test matching the name.
--chain CHAIN Run only tests from specific chain.
General options:
--json Display verbose results in JSON.
--chain CHAIN Chain spec file path.
-h, --help Display this message and exit.
"#;
fn main() {
panic_hook::set();
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let args: Args = Docopt::new(USAGE).and_then(|d| d.deserialize()).unwrap_or_else(|e| e.exit());
if args.cmd_state_test {
run_state_test(args)
} else if args.flag_json {
run_call(args, display::json::Informant::default())
} else {
run_call(args, display::simple::Informant::default())
}
}
fn run_state_test(args: Args) {
use ethjson::state::test::Test;
let file = args.arg_file.expect("FILE is required");
let mut file = match fs::File::open(&file) {
Err(err) => die(format!("Unable to open: {:?}: {}", file, err)),
Ok(file) => file,
};
let state_test = match Test::load(&mut file) {
Err(err) => die(format!("Unable to load the test file: {}", err)),
Ok(test) => test,
};
let only_test = args.flag_only.map(|s| s.to_lowercase());
let only_chain = args.flag_chain.map(|s| s.to_lowercase());
for (name, test) in state_test {
if let Some(false) = only_test.as_ref().map(|only_test| &name.to_lowercase() == only_test) {
continue;
}
let multitransaction = test.transaction;
let env_info = test.env.into();
let pre = test.pre_state.into();
for (spec, states) in test.post_states {
if let Some(false) = only_chain.as_ref().map(|only_chain| &format!("{:?}", spec).to_lowercase() == only_chain) {
continue;
}
for (idx, state) in states.into_iter().enumerate() {
let post_root = state.hash.into();
let transaction = multitransaction.select(&state.indexes).into();
if args.flag_json {
let i = display::json::Informant::default();
info::run_transaction(&name, idx, &spec, &pre, post_root, &env_info, transaction, i)
} else {
let i = display::simple::Informant::default();
info::run_transaction(&name, idx, &spec, &pre, post_root, &env_info, transaction, i)
}
}
}
}
}
fn run_call<T: Informant>(args: Args, mut informant: T) {
let from = arg(args.from(), "--from");
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let to = arg(args.to(), "--to");
let code = arg(args.code(), "--code");
let spec = arg(args.spec(), "--chain");
let gas = arg(args.gas(), "--gas");
let gas_price = arg(args.gas_price(), "--gas-price");
let data = arg(args.data(), "--input");
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if code.is_none() && to == Address::default() {
die("Either --code or --to is required.");
}
let mut params = ActionParams::default();
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params.call_type = if code.is_none() { CallType::Call } else { CallType::None };
params.code_address = to;
params.address = to;
params.sender = from;
params.origin = from;
params.gas = gas;
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params.gas_price = gas_price;
params.code = code.map(Arc::new);
params.data = data;
informant.set_gas(gas);
let result = info::run(&spec, gas, None, |mut client| {
client.call(params, &mut informant).map(|r| (r.gas_left, r.return_data.to_vec()))
});
T::finish(result);
}
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#[derive(Debug, Deserialize)]
struct Args {
cmd_stats: bool,
cmd_state_test: bool,
arg_file: Option<PathBuf>,
flag_only: Option<String>,
flag_from: Option<String>,
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flag_to: Option<String>,
flag_code: Option<String>,
flag_gas: Option<String>,
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flag_gas_price: Option<String>,
flag_input: Option<String>,
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flag_chain: Option<String>,
flag_json: bool,
}
impl Args {
pub fn gas(&self) -> Result<U256, String> {
match self.flag_gas {
Some(ref gas) => gas.parse().map_err(to_string),
None => Ok(!U256::zero()),
}
}
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pub fn gas_price(&self) -> Result<U256, String> {
match self.flag_gas_price {
Some(ref gas_price) => gas_price.parse().map_err(to_string),
None => Ok(U256::zero()),
}
}
pub fn from(&self) -> Result<Address, String> {
match self.flag_from {
Some(ref from) => from.parse().map_err(to_string),
None => Ok(Address::default()),
}
}
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pub fn to(&self) -> Result<Address, String> {
match self.flag_to {
Some(ref to) => to.parse().map_err(to_string),
None => Ok(Address::default()),
}
}
pub fn code(&self) -> Result<Option<Bytes>, String> {
match self.flag_code {
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Some(ref code) => code.from_hex().map(Some).map_err(to_string),
None => Ok(None),
}
}
pub fn data(&self) -> Result<Option<Bytes>, String> {
match self.flag_input {
Some(ref input) => input.from_hex().map_err(to_string).map(Some),
None => Ok(None),
}
}
pub fn spec(&self) -> Result<spec::Spec, String> {
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Ok(match self.flag_chain {
Some(ref filename) => {
let file = fs::File::open(filename).map_err(|e| format!("{}", e))?;
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spec::Spec::load(::std::env::temp_dir(), file)?
},
None => {
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ethcore::ethereum::new_foundation(&::std::env::temp_dir())
},
})
}
}
fn arg<T>(v: Result<T, String>, param: &str) -> T {
v.unwrap_or_else(|e| die(format!("Invalid {}: {}", param, e)))
}
fn to_string<T: fmt::Display>(msg: T) -> String {
format!("{}", msg)
}
fn die<T: fmt::Display>(msg: T) -> ! {
println!("{}", msg);
::std::process::exit(-1)
}
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#[cfg(test)]
mod tests {
use docopt::Docopt;
use super::{Args, USAGE};
fn run<T: AsRef<str>>(args: &[T]) -> Args {
Docopt::new(USAGE).and_then(|d| d.argv(args.into_iter()).deserialize()).unwrap()
}
#[test]
fn should_parse_all_the_options() {
let args = run(&[
"parity-evm",
"--json",
"--gas", "1",
"--gas-price", "2",
"--from", "0000000000000000000000000000000000000003",
"--to", "0000000000000000000000000000000000000004",
"--code", "05",
"--input", "06",
"--chain", "./testfile",
]);
assert_eq!(args.flag_json, true);
assert_eq!(args.gas(), Ok(1.into()));
assert_eq!(args.gas_price(), Ok(2.into()));
assert_eq!(args.from(), Ok(3.into()));
assert_eq!(args.to(), Ok(4.into()));
assert_eq!(args.code(), Ok(Some(vec![05])));
assert_eq!(args.data(), Ok(Some(vec![06])));
assert_eq!(args.flag_chain, Some("./testfile".to_owned()));
}
#[test]
fn should_parse_state_test_command() {
let args = run(&[
"parity-evm",
"state-test",
"./file.json",
"--chain", "homestead",
"--only=add11",
"--json",
]);
assert_eq!(args.cmd_state_test, true);
assert!(args.arg_file.is_some());
assert_eq!(args.flag_json, true);
assert_eq!(args.flag_chain, Some("homestead".to_owned()));
assert_eq!(args.flag_only, Some("add11".to_owned()));
}
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}