Bogdan-Ștefan Neacşu
128 lines
3.5 KiB
Rust
128 lines
3.5 KiB
Rust
#[macro_use]
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extern crate rocket;
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#[macro_use]
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extern crate rocket_okapi;
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use clap::Parser;
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use log::info;
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use network_defaults::setup_env;
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use task::ShutdownNotifier;
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pub(crate) mod cache;
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mod client;
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pub(crate) mod commands;
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mod country_statistics;
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mod gateways;
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mod http;
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mod mix_node;
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pub(crate) mod mix_nodes;
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mod overview;
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mod ping;
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mod state;
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mod tasks;
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mod validators;
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const GEO_IP_SERVICE: &str = "https://api.ipbase.com/json";
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const COUNTRY_DATA_REFRESH_INTERVAL: u64 = 60 * 15; // every 15 minutes
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#[tokio::main]
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async fn main() {
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setup_logging();
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let args = commands::Cli::parse();
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setup_env(args.config_env_file);
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let mut explorer_api = ExplorerApi::new();
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explorer_api.run().await;
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}
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pub struct ExplorerApi {
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state: state::ExplorerApiStateContext,
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}
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impl ExplorerApi {
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fn new() -> ExplorerApi {
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ExplorerApi {
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state: state::ExplorerApiStateContext::new(),
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}
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}
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async fn run(&mut self) {
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info!("Explorer API starting up...");
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let validator_api_url = self.state.inner.validator_client.api_endpoint();
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info!("Using validator API - {}", validator_api_url);
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let shutdown = ShutdownNotifier::default();
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// spawn concurrent tasks
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crate::tasks::ExplorerApiTasks::new(self.state.clone(), shutdown.subscribe()).start();
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country_statistics::distribution::CountryStatisticsDistributionTask::new(
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self.state.clone(),
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shutdown.subscribe(),
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)
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.start();
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country_statistics::geolocate::GeoLocateTask::new(self.state.clone(), shutdown.subscribe())
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.start();
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// Rocket handles shutdown on it's own, but its shutdown handling should be incorporated
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// with that of the rest of the tasks.
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// Currently it's runtime is forcefully terminated once the explorer-api exits.
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http::start(self.state.clone());
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// wait for user to press ctrl+C
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self.wait_for_interrupt(shutdown).await
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}
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async fn wait_for_interrupt(&self, mut shutdown: ShutdownNotifier) {
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wait_for_signal().await;
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log::info!("Sending shutdown");
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shutdown.signal_shutdown().ok();
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log::info!("Waiting for tasks to finish... (Press ctrl-c to force)");
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shutdown.wait_for_shutdown().await;
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log::info!("Stopping explorer API");
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}
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}
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#[cfg(unix)]
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async fn wait_for_signal() {
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use tokio::signal::unix::{signal, SignalKind};
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let mut sigterm = signal(SignalKind::terminate()).expect("Failed to setup SIGTERM channel");
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let mut sigquit = signal(SignalKind::quit()).expect("Failed to setup SIGQUIT channel");
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tokio::select! {
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_ = tokio::signal::ctrl_c() => {
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log::info!("Received SIGINT");
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},
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_ = sigterm.recv() => {
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log::info!("Received SIGTERM");
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}
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_ = sigquit.recv() => {
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log::info!("Received SIGQUIT");
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}
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}
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}
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#[cfg(not(unix))]
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async fn wait_for_signal() {
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tokio::select! {
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_ = tokio::signal::ctrl_c() => {
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log::info!("Received SIGINT");
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},
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}
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}
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fn setup_logging() {
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let mut log_builder = pretty_env_logger::formatted_timed_builder();
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if let Ok(s) = ::std::env::var("RUST_LOG") {
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log_builder.parse_filters(&s);
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} else {
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// default to 'Info'
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log_builder.filter(None, log::LevelFilter::Info);
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}
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log_builder
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.filter_module("tokio_reactor", log::LevelFilter::Warn)
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.filter_module("reqwest", log::LevelFilter::Warn)
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.init();
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}
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