135 lines
3.5 KiB
Rust
135 lines
3.5 KiB
Rust
// Copyright 2015, 2016 Ethcore (UK) Ltd.
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// This file is part of Parity.
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// Parity is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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use std::net::{SocketAddr, ToSocketAddrs};
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use std::hash::{Hash, Hasher};
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use std::str::{FromStr};
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use hash::*;
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use rlp::*;
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use time::Tm;
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use error::*;
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/// Node public key
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pub type NodeId = H512;
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#[derive(Debug)]
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/// Noe address info
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pub struct NodeEndpoint {
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/// IP(V4 or V6) address
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pub address: SocketAddr,
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/// Address as string (can be host name).
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pub address_str: String,
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/// Conneciton port.
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pub udp_port: u16
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}
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impl FromStr for NodeEndpoint {
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type Err = UtilError;
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/// Create endpoint from string. Performs name resolution if given a host name.
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fn from_str(s: &str) -> Result<NodeEndpoint, UtilError> {
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let address = s.to_socket_addrs().map(|mut i| i.next());
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match address {
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Ok(Some(a)) => Ok(NodeEndpoint {
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address: a,
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address_str: s.to_owned(),
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udp_port: a.port()
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}),
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Ok(_) => Err(UtilError::AddressResolve(None)),
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Err(e) => Err(UtilError::AddressResolve(Some(e)))
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}
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}
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}
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#[derive(PartialEq, Eq, Copy, Clone)]
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pub enum PeerType {
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Required,
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Optional
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}
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pub struct Node {
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pub id: NodeId,
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pub endpoint: NodeEndpoint,
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pub peer_type: PeerType,
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pub last_attempted: Option<Tm>,
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}
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impl FromStr for Node {
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type Err = UtilError;
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fn from_str(s: &str) -> Result<Self, Self::Err> {
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let (id, endpoint) = if &s[0..8] == "enode://" && s.len() > 136 && &s[136..137] == "@" {
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(try!(NodeId::from_str(&s[8..136])), try!(NodeEndpoint::from_str(&s[137..])))
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}
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else {
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(NodeId::new(), try!(NodeEndpoint::from_str(s)))
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};
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Ok(Node {
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id: id,
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endpoint: endpoint,
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peer_type: PeerType::Optional,
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last_attempted: None,
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})
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}
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}
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impl PartialEq for Node {
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fn eq(&self, other: &Self) -> bool {
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self.id == other.id
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}
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}
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impl Eq for Node { }
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impl Hash for Node {
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fn hash<H>(&self, state: &mut H) where H: Hasher {
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self.id.hash(state)
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use std::str::FromStr;
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use std::net::*;
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use hash::*;
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#[test]
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fn endpoint_parse() {
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let endpoint = NodeEndpoint::from_str("123.99.55.44:7770");
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assert!(endpoint.is_ok());
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let v4 = match endpoint.unwrap().address {
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SocketAddr::V4(v4address) => v4address,
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_ => panic!("should ve v4 address")
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};
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assert_eq!(SocketAddrV4::new(Ipv4Addr::new(123, 99, 55, 44), 7770), v4);
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}
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#[test]
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fn node_parse() {
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let node = Node::from_str("enode://a979fb575495b8d6db44f750317d0f4622bf4c2aa3365d6af7c284339968eef29b69ad0dce72a4d8db5ebb4968de0e3bec910127f134779fbcb0cb6d3331163c@22.99.55.44:7770");
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assert!(node.is_ok());
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let node = node.unwrap();
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let v4 = match node.endpoint.address {
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SocketAddr::V4(v4address) => v4address,
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_ => panic!("should ve v4 address")
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};
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assert_eq!(SocketAddrV4::new(Ipv4Addr::new(22, 99, 55, 44), 7770), v4);
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assert_eq!(
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H512::from_str("a979fb575495b8d6db44f750317d0f4622bf4c2aa3365d6af7c284339968eef29b69ad0dce72a4d8db5ebb4968de0e3bec910127f134779fbcb0cb6d3331163c").unwrap(),
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node.id);
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}
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}
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