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* Use try!/map_err instead of match

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* Use jsonrpc_core for serializing/deserializing rpc messages
* Factor out unwraps
* Remove mem::replace
* Add nicer formating of ConfirmationRequests
This commit is contained in:
Kristoffer Ström 2016-09-30 15:30:17 +02:00 committed by arkpar
parent 273d7c00c3
commit 7a176094d5
9 changed files with 162 additions and 137 deletions
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16
parity/configuration.rs
View File

@ -43,6 +43,8 @@ use presale::ImportWallet;
use account::{AccountCmd, NewAccount, ImportAccounts, ImportFromGethAccounts};
use snapshot::{self, SnapshotCommand};
const AUTHCODE_FILENAME: &'static str = "authcodes";
#[derive(Debug, PartialEq)]
pub enum Cmd {
Run(RunCmd),
@ -62,7 +64,7 @@ pub enum Cmd {
authfile: PathBuf
},
SignerReject {
id: usize,
id: Option<usize>,
port: u16,
authfile: PathBuf
},
@ -124,15 +126,14 @@ impl Configuration {
=======
} else if self.args.cmd_signer {
let mut authfile = PathBuf::from(signer_conf.signer_path);
authfile.push("authcodes");
authfile.push(AUTHCODE_FILENAME);
if self.args.cmd_new_token {
Cmd::SignerToken(dirs.signer)
} else if self.args.cmd_sign {
let pwfile = match self.args.flag_password.get(0) {
Some(pwfile) => Some(PathBuf::from(pwfile)),
None => None,
};
let pwfile = self.args.flag_password.get(0).map(|pwfile| {
PathBuf::from(pwfile)
});
Cmd::SignerSign {
id: self.args.arg_id,
pwfile: pwfile,
@ -141,8 +142,7 @@ impl Configuration {
}
} else if self.args.cmd_reject {
Cmd::SignerReject {
// id is a required field for this command
id: self.args.arg_id.unwrap(),
id: self.args.arg_id,
port: signer_conf.port,
authfile: authfile,
}

8
rpc/src/v1/types/confirmations.rs
View File

@ -41,16 +41,16 @@ impl From<helpers::ConfirmationRequest> for ConfirmationRequest {
impl fmt::Display for ConfirmationRequest {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "id: {:?}, {}", self.id, self.payload)
write!(f, "#{}: {}", self.id, self.payload)
}
}
impl fmt::Display for ConfirmationPayload {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
&ConfirmationPayload::Transaction(ref transaction)
match *self {
ConfirmationPayload::Transaction(ref transaction)
=> write!(f, "{}", transaction),
&ConfirmationPayload::Sign(_) => write!(f, "TODO: data"),
ConfirmationPayload::Sign(_) => write!(f, "TODO: data"),
}
}
}

14
rpc/src/v1/types/transaction_request.rs
View File

@ -44,10 +44,16 @@ pub struct TransactionRequest {
impl fmt::Display for TransactionRequest {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{:?} from {:?} to {:?}",
self.value.unwrap_or(U256::from(0)),
self.from,
self.to)
let eth = self.value.unwrap_or(U256::from(0));
match self.to {
Some(ref to) => write!(f, "{} Ether from {:?} to {:?}",
eth.format_ether(),
self.from,
to),
None => write!(f, "{} Ether from {:?}",
eth.format_ether(),
self.from),
}
}
}

19
rpc/src/v1/types/uint.rs
View File

@ -48,6 +48,25 @@ macro_rules! impl_uint {
}
}
impl $name {
/// Human readable formatting
pub fn format_ether(&self) -> String {
let divisor = $other::from(10u64.pow(18));
let ether = self.0 / divisor;
let rest = self.0 - ether * divisor;
let string = format!("{}.{}", ether, rest);
string.trim_right_matches('0')
.trim_right_matches('.')
.to_string()
}
}
impl fmt::Display for $name {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}", self.0)
}
}
impl fmt::LowerHex for $name {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{:#x}", self.0)

123
rpc_cli/src/lib.rs
View File

@ -15,7 +15,7 @@ use std::fs::File;
use futures::Future;
fn sign_interactive(signer: &mut SignerRpc, pwd: &String, request: ConfirmationRequest)
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();
@ -23,7 +23,7 @@ fn sign_interactive(signer: &mut SignerRpc, pwd: &String, request: ConfirmationR
Some(Ok(line)) => {
match line.to_lowercase().chars().nth(0) {
Some('y') => {
match sign_transaction(signer, request.id, pwd) {
match sign_transaction(signer, request.id, password) {
Ok(s) | Err(s) => println!("{}", s),
}
}
@ -39,128 +39,129 @@ fn sign_interactive(signer: &mut SignerRpc, pwd: &String, request: ConfirmationR
}
}
fn sign_transactions(signer: &mut SignerRpc, pwd: String) -> Result<String, String> {
signer.requests_to_confirm().map(|reqs| {
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) => {
if reqs.len() == 0 {
Ok("No transactions in signing queue".to_string())
} else {
for r in reqs {
sign_interactive(signer, &pwd, r)
}
Ok("".to_string())
for r in reqs {
sign_interactive(signer, &password, r)
}
Ok("".to_owned())
}
Err(err) => {
Err(format!("error: {:?}", err))
}
}
}).wait().unwrap()
}).map_err(|err| {
format!("{:?}", err)
}).wait())
}
fn list_transactions(signer: &mut SignerRpc) -> Result<String, String> {
signer.requests_to_confirm().map(|reqs| {
try!(signer.requests_to_confirm().map(|reqs| {
match reqs {
Ok(reqs) => {
let mut s = "Transaction queue:".to_string();
if reqs.len() == 0 {
s = s + &"No transactions in signing queue";
} else {
for r in reqs {
s = s + &format!("\n{}", r);
}
}
Ok(s)
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))
}
}
}).wait().unwrap()
}).map_err(|err| {
format!("{:?}", err)
}).wait())
}
fn sign_transaction(signer: &mut SignerRpc,
id: U256,
pwd: &String) -> Result<String, String> {
signer.confirm_request(id, None, &pwd).map(|res| {
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)),
}
}).wait().unwrap()
}).map_err(|err| {
format!("{:?}", err)
}).wait())
}
fn reject_transaction(signer: &mut SignerRpc,
id: U256) -> Result<String, String> {
signer.reject_request(id).map(|res| {
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)),
}
}).wait().unwrap()
}).map_err(|err| {
format!("{:?}", err)
}).wait())
}
// cmds
pub fn cmd_signer_list(signerport: u16,
authfile: PathBuf) -> Result<String, String> {
match SignerRpc::new(&format!("ws://127.0.0.1:{}", signerport),
&authfile) {
Ok(mut signer) => {
list_transactions(&mut signer)
}
Err(e) => Err(format!("{:?}", e))
}
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: usize,
signerport: u16,
pub fn cmd_signer_reject(id: Option<usize>, signerport: u16,
authfile: PathBuf) -> Result<String, String> {
match SignerRpc::new(&format!("ws://127.0.0.1:{}", signerport),
&authfile) {
Ok(mut signer) => {
reject_transaction(&mut signer, U256::from(id))
},
Err(e) => Err(format!("{:?}", e))
}
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 pwd;
let password;
match pwfile {
Some(pwfile) => {
match File::open(pwfile) {
Ok(fd) => {
match BufReader::new(fd).lines().next() {
Some(Ok(line)) => pwd = line,
Some(Ok(line)) => password = line,
_ => return Err(format!("No password in file"))
}
},
Err(e) => return Err(format!("Could not open pwfile: {}", e))
Err(e) => return Err(format!("Could not open password file: {}", e))
}
}
None => {
pwd = rpassword::prompt_password_stdout("Password: ").unwrap();
password = match rpassword::prompt_password_stdout("Password: ") {
Ok(p) => p,
Err(e) => return Err(format!("{}", e)),
}
}
}
match SignerRpc::new(&format!("ws://127.0.0.1:{}", signerport),
&authfile) {
Ok(mut signer) => {
match id {
Some(id) => {
sign_transaction(&mut signer, U256::from(id), &pwd)
},
None => {
sign_transactions(&mut signer, pwd)
}
}
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)
}
Err(e) => return Err(format!("{:?}", e))
}
}

13
rpc_client/Cargo.toml
View File

@ -8,6 +8,7 @@ version = "1.4.0"
[dependencies]
futures = "0.1"
jsonrpc-core = "3.0.2"
lazy_static = "0.2.1"
matches = "0.1.2"
rand = "0.3.14"
@ -16,12 +17,6 @@ serde_json = "0.8"
tempdir = "0.3.5"
url = "1.2.0"
ws = "0.5.3"
[dependencies.ethcore-rpc]
path = "../rpc"
[dependencies.ethcore-signer]
path = "../signer"
[dependencies.ethcore-util]
path = "../util"
ethcore-rpc = { path = "../rpc" }
ethcore-signer = { path = "../signer" }
ethcore-util = { path = "../util" }

72
rpc_client/src/client.rs
View File

@ -4,7 +4,6 @@ use std::sync::{Arc, Mutex};
use std::sync::atomic::{AtomicUsize, Ordering};
use std::collections::BTreeMap;
use std::thread;
use std::mem;
use std::time;
use std::path::PathBuf;
@ -12,7 +11,7 @@ use util::Hashable;
use url::Url;
use std::fs::File;
use ws::{connect,
use ws::{self,
Request,
Handler,
Sender,
@ -25,12 +24,12 @@ use ws::{connect,
use serde::Serialize;
use serde::Deserialize;
use serde::ser::Serializer;
use serde_json::{from_str,
to_string,
from_value,
use serde_json::{self as json,
Value as JsonValue,
Error as JsonError};
//use jsonrpc_core::
use futures::{BoxFuture, Canceled, Complete, Future, oneshot, done};
/// The actual websocket connection handler, passed into the
@ -65,9 +64,12 @@ impl Handler for RpcHandler {
fn build_request(&mut self, url: &Url) -> WsResult<Request> {
match Request::from_url(url) {
Ok(mut r) => {
let timestamp = time::UNIX_EPOCH.elapsed().unwrap().as_secs();
let hashed = format!("{}:{}", self.auth_code, timestamp).sha3();
let proto = format!("{:?}_{}", hashed, timestamp);
let timestamp = try!(time::UNIX_EPOCH.elapsed().map_err(|err| {
WsError::new(WsErrorKind::Internal, format!("{}", err))
}));
let secs = timestamp.as_secs();
let hashed = format!("{}:{}", self.auth_code, secs).sha3();
let proto = format!("{:?}_{}", hashed, secs);
r.add_protocol(&proto);
Ok(r)
},
@ -75,22 +77,25 @@ impl Handler for RpcHandler {
}
}
fn on_error(&mut self, err: WsError) {
match mem::replace(&mut self.complete, None) {
match self.complete.take() {
Some(c) => c.complete(Err(RpcError::WsError(err))),
None => println!("warning: unexpected error"),
None => println!("unexpected error: {}", err),
}
}
fn on_open(&mut self, _: Handshake) -> WsResult<()> {
match mem::replace(&mut self.complete, None) {
Some(c) => c.complete(Ok(Rpc {
out: mem::replace(&mut self.out, None).unwrap(),
counter: AtomicUsize::new(0),
pending: self.pending.clone(),
})),
// Should not be reachable
None => (),
match (self.complete.take(), self.out.take()) {
(Some(c), Some(out)) => {
c.complete(Ok(Rpc {
out: out,
counter: AtomicUsize::new(0),
pending: self.pending.clone(),
}));
Ok(())
},
_ => {
Err(WsError::new(WsErrorKind::Internal, format!("on_open called twice")))
}
}
Ok(())
}
fn on_message(&mut self, msg: Message) -> WsResult<()> {
match parse_response(&msg.to_string()) {
@ -153,16 +158,25 @@ impl Rpc {
Err(e) => return done(Ok(Err(e))).boxed(),
Ok(code) => {
let url = String::from(url);
// The ws::connect takes a FnMut closure,
// which means c cannot be moved into it,
// since it's consumed on complete.
// Therefore we wrap it in an option
// and pick it out once.
let mut once = Some(c);
thread::spawn(move || {
// mem:replace Option hack to move `c` out
// of the FnMut closure
let mut swap = Some(c);
match connect(url, |out| {
let c = mem::replace(&mut swap, None).unwrap();
let conn = ws::connect(url, |out| {
// this will panic if the closure
// is called twice, which it should never
// be.
let c = once.take().expect("connection closure called only once");
RpcHandler::new(out, code.clone(), c)
}) {
});
match conn {
Err(err) => {
let c = mem::replace(&mut swap, None).unwrap();
// since ws::connect is only called once, it cannot
// both fail and succeed.
let c = once.take().expect("connection closure called only once");
c.complete(Err(RpcError::WsError(err)));
},
// c will complete on the `on_open` event in the Handler
@ -183,13 +197,13 @@ impl Rpc {
let id = self.counter.fetch_add(1, Ordering::Relaxed);
self.pending.insert(id, c);
let serialized = to_string(&RpcRequest::new(id, method, params)).unwrap();
let serialized = json::to_string(&RpcRequest::new(id, method, params)).unwrap();
let _ = self.out.send(serialized);
p.map(|result| {
match result {
Ok(json) => {
let t: T = try!(from_value(json));
let t: T = try!(json::from_value(json));
Ok(t)
},
Err(err) => Err(err)
@ -281,7 +295,7 @@ impl From<Canceled> for RpcError {
}
fn parse_response(s: &str) -> (Option<usize>, Result<JsonValue, RpcError>) {
let mut json: JsonValue = match from_str(s) {
let mut json: JsonValue = match json::from_str(s) {
Err(e) => return (None, Err(RpcError::ParseError(e))),
Ok(json) => json,
};

21
rpc_client/src/lib.rs
View File

@ -12,6 +12,7 @@ extern crate serde;
extern crate serde_json;
extern crate rand;
extern crate tempdir;
extern crate jsonrpc_core;
#[macro_use]
extern crate lazy_static;
@ -19,7 +20,7 @@ extern crate lazy_static;
extern crate matches;
#[cfg(test)]
mod test {
mod tests {
use futures::Future;
use std::path::PathBuf;
@ -29,46 +30,40 @@ mod test {
#[test]
fn test_connection_refused() {
let (srv, port, tmpdir, _) = serve();
let (_srv, port, tmpdir, _) = serve();
let mut path = PathBuf::from(tmpdir.path());
path.push("authcodes");
let connect = Rpc::connect(&format!("ws://127.0.0.1:{}", port - 1), &path);
connect.map(|conn| {
let _ = connect.map(|conn| {
assert!(matches!(&conn, &Err(RpcError::WsError(_))));
}).wait();
drop(srv);
}
#[test]
fn test_authcode_fail() {
let (srv, port, _, _) = serve();
let (_srv, port, _, _) = serve();
let path = PathBuf::from("nonexist");
let connect = Rpc::connect(&format!("ws://127.0.0.1:{}", port), &path);
connect.map(|conn| {
let _ = connect.map(|conn| {
assert!(matches!(&conn, &Err(RpcError::NoAuthCode)));
}).wait();
drop(srv);
}
#[test]
fn test_authcode_correct() {
let (srv, port, tmpdir, _) = serve();
let (_srv, port, tmpdir, _) = serve();
let mut path = PathBuf::from(tmpdir.path());
path.push("authcodes");
let connect = Rpc::connect(&format!("ws://127.0.0.1:{}", port), &path);
connect.map(|conn| {
let _ = connect.map(|conn| {
assert!(conn.is_ok())
}).wait();
drop(srv);
}
}

13
rpc_client/src/signer.rs
View File

@ -1,4 +1,3 @@
use client::{Rpc, RpcError};
use rpc::v1::types::{ConfirmationRequest,
TransactionModification,
@ -13,16 +12,12 @@ pub struct SignerRpc {
impl SignerRpc {
pub fn new(url: &str, authfile: &PathBuf) -> Result<Self, RpcError> {
match Rpc::new(&url, authfile) {
Ok(rpc) => Ok(SignerRpc { rpc: rpc }),
Err(e) => Err(e),
}
Ok(SignerRpc { rpc: try!(Rpc::new(&url, authfile)) })
}
pub fn requests_to_confirm(&mut self) ->
BoxFuture<Result<Vec<ConfirmationRequest>, RpcError>, Canceled>
{
self.rpc.request::<Vec<ConfirmationRequest>>
("personal_requestsToConfirm", vec![])
self.rpc.request("personal_requestsToConfirm", vec![])
}
pub fn confirm_request(&mut self,
id: U256,
@ -30,7 +25,7 @@ impl SignerRpc {
pwd: &str) ->
BoxFuture<Result<U256, RpcError>, Canceled>
{
self.rpc.request::<U256>("personal_confirmRequest", vec![
self.rpc.request("personal_confirmRequest", vec![
to_value(&format!("{:#x}", id)),
to_value(&TransactionModification { gas_price: new_gas_price }),
to_value(&pwd),
@ -39,7 +34,7 @@ impl SignerRpc {
pub fn reject_request(&mut self, id: U256) ->
BoxFuture<Result<bool, RpcError>, Canceled>
{
self.rpc.request::<bool>("personal_rejectRequest", vec![
self.rpc.request("personal_rejectRequest", vec![
JsonValue::String(format!("{:#x}", id))
])
}