2018-11-03 09:46:12 +03:00
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// Copyright 2018 The Grin Developers
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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use super::utils::w;
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2018-12-08 02:59:40 +03:00
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use crate::core::core::hash::Hashed;
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use crate::core::core::Transaction;
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use crate::core::ser;
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use crate::pool;
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use crate::rest::*;
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use crate::router::{Handler, ResponseFuture};
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use crate::types::*;
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use crate::util;
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use crate::util::RwLock;
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use crate::web::*;
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2019-02-16 00:17:00 +03:00
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use failure::ResultExt;
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2018-11-03 09:46:12 +03:00
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use futures::future::ok;
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use futures::Future;
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use hyper::{Body, Request, StatusCode};
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use std::sync::Weak;
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/// Get basic information about the transaction pool.
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/// GET /v1/pool
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pub struct PoolInfoHandler {
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pub tx_pool: Weak<RwLock<pool::TransactionPool>>,
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}
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impl Handler for PoolInfoHandler {
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fn get(&self, _req: Request<Body>) -> ResponseFuture {
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let pool_arc = w(&self.tx_pool);
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let pool = pool_arc.read();
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json_response(&PoolInfo {
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pool_size: pool.total_size(),
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})
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}
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}
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/// Dummy wrapper for the hex-encoded serialized transaction.
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#[derive(Serialize, Deserialize)]
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struct TxWrapper {
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tx_hex: String,
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}
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/// Push new transaction to our local transaction pool.
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/// POST /v1/pool/push
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pub struct PoolPushHandler {
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pub tx_pool: Weak<RwLock<pool::TransactionPool>>,
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}
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impl PoolPushHandler {
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2018-12-08 02:59:40 +03:00
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fn update_pool(&self, req: Request<Body>) -> Box<dyn Future<Item = (), Error = Error> + Send> {
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2019-02-16 00:17:00 +03:00
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let params = QueryParams::from(req.uri().query());
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2018-11-03 09:46:12 +03:00
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let fluff = params.get("fluff").is_some();
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let pool_arc = w(&self.tx_pool).clone();
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Box::new(
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parse_body(req)
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.and_then(move |wrapper: TxWrapper| {
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util::from_hex(wrapper.tx_hex)
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.map_err(|e| ErrorKind::RequestError(format!("Bad request: {}", e)).into())
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})
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.and_then(move |tx_bin| {
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ser::deserialize(&mut &tx_bin[..])
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.map_err(|e| ErrorKind::RequestError(format!("Bad request: {}", e)).into())
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})
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.and_then(move |tx: Transaction| {
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let source = pool::TxSource {
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debug_name: "push-api".to_string(),
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identifier: "?.?.?.?".to_string(),
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};
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info!(
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"Pushing transaction {} to pool (inputs: {}, outputs: {}, kernels: {})",
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tx.hash(),
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tx.inputs().len(),
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tx.outputs().len(),
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tx.kernels().len(),
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);
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// Push to tx pool.
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let mut tx_pool = pool_arc.write();
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2019-02-16 00:17:00 +03:00
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let header = tx_pool
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.blockchain
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.chain_head()
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.context(ErrorKind::Internal("Failed to get chain head".to_owned()))?;
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let res = tx_pool
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2018-11-03 09:46:12 +03:00
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.add_to_pool(source, tx, !fluff, &header)
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2019-02-16 00:17:00 +03:00
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.context(ErrorKind::Internal("Failed to update pool".to_owned()))?;
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Ok(res)
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2018-11-03 09:46:12 +03:00
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}),
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)
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}
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}
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impl Handler for PoolPushHandler {
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fn post(&self, req: Request<Body>) -> ResponseFuture {
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Box::new(
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self.update_pool(req)
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.and_then(|_| ok(just_response(StatusCode::OK, "")))
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.or_else(|e| {
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ok(just_response(
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StatusCode::INTERNAL_SERVER_ERROR,
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format!("failed: {}", e),
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))
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}),
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)
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}
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}
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