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use anyhow::{ensure, Result};
use diem_config::{
config::{Identity, NodeConfig, PeerRole, RoleType, WaypointConfig},
generator::build_seed_for_network,
network_id::NetworkId,
};
use diem_crypto::{x25519, Uniform};
use diem_types::{transaction::Transaction, waypoint::Waypoint};
use rand::rngs::OsRng;
use std::{
fs::File,
io::Write,
path::{Path, PathBuf},
};
pub struct FullnodeConfig {
pub name: String,
pub config: NodeConfig,
pub directory: PathBuf,
}
impl FullnodeConfig {
pub fn public_fullnode(
name: String,
config_directory: &Path,
config: NodeConfig,
waypoint: &Waypoint,
genesis: &Transaction,
) -> Result<Self> {
let mut fullnode_config = Self::new(name, config_directory, config)?;
fullnode_config.insert_waypoint(waypoint);
fullnode_config.insert_genesis(genesis)?;
fullnode_config.set_identity();
fullnode_config.config.randomize_ports();
fullnode_config.save_config()?;
Ok(fullnode_config)
}
pub fn validator_fullnode(
name: String,
config_directory: &Path,
fullnode_config: NodeConfig,
validator_config: &mut NodeConfig,
waypoint: &Waypoint,
genesis: &Transaction,
) -> Result<Self> {
let mut fullnode_config = Self::new(name, config_directory, fullnode_config)?;
fullnode_config.insert_waypoint(waypoint);
fullnode_config.insert_genesis(genesis)?;
fullnode_config.config.randomize_ports();
fullnode_config.attach_to_validator(validator_config)?;
fullnode_config.save_config()?;
Ok(fullnode_config)
}
fn new(name: String, config_directory: &Path, mut config: NodeConfig) -> Result<Self> {
ensure!(
matches!(config.base.role, RoleType::FullNode),
"config must be a FullNode config"
);
let directory = config_directory.join(&name);
std::fs::create_dir_all(&directory)?;
config.set_data_dir(directory.clone());
Ok(Self {
name,
config,
directory,
})
}
fn insert_waypoint(&mut self, waypoint: &Waypoint) {
self.config.base.waypoint = WaypointConfig::FromConfig(*waypoint);
}
fn insert_genesis(&mut self, genesis: &Transaction) -> Result<()> {
let genesis_file_location = self.directory.join("genesis.blob");
File::create(&genesis_file_location)?.write_all(&bcs::to_bytes(&genesis)?)?;
self.config.execution.genesis = Some(genesis.clone());
self.config.execution.genesis_file_location = genesis_file_location;
Ok(())
}
fn set_identity(&mut self) {
let mut network_config = self
.config
.full_node_networks
.iter_mut()
.find(|config| config.network_id == NetworkId::Public)
.unwrap();
if let Identity::None = network_config.identity {
let key = x25519::PrivateKey::generate(&mut OsRng);
let peer_id = diem_types::account_address::from_identity_public_key(key.public_key());
network_config.identity = Identity::from_config(key, peer_id);
}
}
fn attach_to_validator(&mut self, validator_config: &mut NodeConfig) -> Result<()> {
ensure!(
matches!(validator_config.base.role, RoleType::Validator),
"Validator config must be a Validator config"
);
let public_network = {
let (i, _) = validator_config
.full_node_networks
.iter()
.enumerate()
.find(|(_i, config)| config.network_id == NetworkId::Public)
.expect("Validator should have a public network");
validator_config.full_node_networks.remove(i)
};
let fullnode_public_network = self
.config
.full_node_networks
.iter_mut()
.find(|config| config.network_id == NetworkId::Public)
.expect("VFN should have a public network");
fullnode_public_network.identity = public_network.identity;
fullnode_public_network.listen_address = public_network.listen_address;
let validators_vfn_network = validator_config
.full_node_networks
.iter()
.find(|config| config.network_id.is_vfn_network())
.expect("Validator should have vfn network");
let fullnode_vfn_network = self
.config
.full_node_networks
.iter_mut()
.find(|config| config.network_id.is_vfn_network())
.expect("VFN should have a vfn network");
fullnode_vfn_network.seeds =
build_seed_for_network(validators_vfn_network, PeerRole::Validator);
if let Identity::None = fullnode_vfn_network.identity {
let key = x25519::PrivateKey::generate(&mut OsRng);
let peer_id = diem_types::account_address::from_identity_public_key(key.public_key());
fullnode_vfn_network.identity = Identity::from_config(key, peer_id);
}
Ok(())
}
pub fn config_path(&self) -> PathBuf {
self.directory.join("node.yaml")
}
fn save_config(&mut self) -> Result<()> {
self.config.save(self.config_path()).map_err(Into::into)
}
}