openethereum/rpc_cli/src/lib.rs
2016-12-09 22:26:08 +01:00

168 lines
4.3 KiB
Rust

extern crate futures;
extern crate ethcore_util as util;
extern crate ethcore_rpc as rpc;
extern crate ethcore_bigint as bigint;
extern crate rpassword;
extern crate parity_rpc_client as client;
use rpc::v1::types::{U256, ConfirmationRequest};
use client::signer_client::SignerRpc;
use std::io::{Write, BufRead, BufReader, stdout, stdin};
use std::path::PathBuf;
use std::fs::File;
use futures::Future;
fn sign_interactive(signer: &mut SignerRpc, password: &str, request: ConfirmationRequest)
{
print!("\n{}\nSign this transaction? (y)es/(N)o/(r)eject: ", request);
let _ = stdout().flush();
match BufReader::new(stdin()).lines().next() {
Some(Ok(line)) => {
match line.to_lowercase().chars().nth(0) {
Some('y') => {
match sign_transaction(signer, request.id, password) {
Ok(s) | Err(s) => println!("{}", s),
}
}
Some('r') => {
match reject_transaction(signer, request.id) {
Ok(s) | Err(s) => println!("{}", s),
}
}
_ => ()
}
}
_ => println!("Could not read from stdin")
}
}
fn sign_transactions(signer: &mut SignerRpc, password: String) -> Result<String, String> {
try!(signer.requests_to_confirm().map(|reqs| {
match reqs {
Ok(ref reqs) if reqs.is_empty() => {
Ok("No transactions in signing queue".to_owned())
}
Ok(reqs) => {
for r in reqs {
sign_interactive(signer, &password, r)
}
Ok("".to_owned())
}
Err(err) => {
Err(format!("error: {:?}", err))
}
}
}).map_err(|err| {
format!("{:?}", err)
}).wait())
}
fn list_transactions(signer: &mut SignerRpc) -> Result<String, String> {
try!(signer.requests_to_confirm().map(|reqs| {
match reqs {
Ok(ref reqs) if reqs.is_empty() => {
Ok("No transactions in signing queue".to_owned())
}
Ok(ref reqs) => {
Ok(format!("Transaction queue:\n{}", reqs
.iter()
.map(|r| format!("{}", r))
.collect::<Vec<String>>()
.join("\n")))
}
Err(err) => {
Err(format!("error: {:?}", err))
}
}
}).map_err(|err| {
format!("{:?}", err)
}).wait())
}
fn sign_transaction(signer: &mut SignerRpc,
id: U256,
password: &str) -> Result<String, String> {
try!(signer.confirm_request(id, None, password).map(|res| {
match res {
Ok(u) => Ok(format!("Signed transaction id: {:#x}", u)),
Err(e) => Err(format!("{:?}", e)),
}
}).map_err(|err| {
format!("{:?}", err)
}).wait())
}
fn reject_transaction(signer: &mut SignerRpc,
id: U256) -> Result<String, String> {
try!(signer.reject_request(id).map(|res| {
match res {
Ok(true) => Ok(format!("Rejected transaction id {:#x}", id)),
Ok(false) => Err(format!("No such request")),
Err(e) => Err(format!("{:?}", e)),
}
}).map_err(|err| {
format!("{:?}", err)
}).wait())
}
// cmds
pub fn cmd_signer_list(signerport: u16,
authfile: PathBuf) -> Result<String, String> {
let mut signer = try!(SignerRpc::new(&format!("ws://127.0.0.1:{}", signerport), &authfile).map_err(|err| {
format!("{:?}", err)
}));
list_transactions(&mut signer)
}
pub fn cmd_signer_reject(id: Option<usize>, signerport: u16,
authfile: PathBuf) -> Result<String, String> {
let id = try!(id.ok_or(format!("id required for signer reject")));
let mut signer = try!(SignerRpc::new(&format!("ws://127.0.0.1:{}", signerport), &authfile).map_err(|err| {
format!("{:?}", err)
}));
reject_transaction(&mut signer, U256::from(id))
}
pub fn cmd_signer_sign(id: Option<usize>,
pwfile: Option<PathBuf>,
signerport: u16,
authfile: PathBuf) -> Result<String, String> {
let password;
match pwfile {
Some(pwfile) => {
match File::open(pwfile) {
Ok(fd) => {
match BufReader::new(fd).lines().next() {
Some(Ok(line)) => password = line,
_ => return Err(format!("No password in file"))
}
},
Err(e) => return Err(format!("Could not open password file: {}", e))
}
}
None => {
password = match rpassword::prompt_password_stdout("Password: ") {
Ok(p) => p,
Err(e) => return Err(format!("{}", e)),
}
}
}
let mut signer = try!(SignerRpc::new(&format!("ws://127.0.0.1:{}", signerport), &authfile).map_err(|err| {
format!("{:?}", err)
}));
match id {
Some(id) => {
sign_transaction(&mut signer, U256::from(id), &password)
},
None => {
sign_transactions(&mut signer, password)
}
}
}