51 lines
1.8 KiB
Rust
51 lines
1.8 KiB
Rust
use std::env;
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use tokio::sync::broadcast;
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use anyhow::{Result, Context, anyhow};
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use log::*;
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use crate::diplonat::*;
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use crate::node_state::*;
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use std::cell::Cell;
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const epi: &'static str = "DIPLONAT_PRIVATE_IP";
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const ert: &'static str = "DIPLONAT_REFRESH_TIME";
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const eet: &'static str = "DIPLONAT_EXPIRATION_TIME";
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const ecnd: &'static str = "DIPLONAT_CONSUL_NODE_NAME";
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const ecu: &'static str = "DIPLONAT_CONSUL_URL";
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pub struct EnvironmentAdapter {}
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impl EnvironmentAdapter {
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pub async fn new(ns: &Cell<NodeState>, _: &broadcast::Sender<()>) -> Result<Self> {
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ns.consul_node_name = Some(match env::var(ecu) {
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Ok(e) => e,
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Err(_) => "http://127.0.0.1:8500".to_string()
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});
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ns.private_ip = Some(env::var(epi)
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.with_context(|| format!("{} env var must be defined, eg: 192.168.0.18", epi))?);
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ns.refresh_time = Some(env::var(ert)
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.with_context(|| format!("{} env var must be defined, eg: 60", ert))?
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.parse()
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.with_context(|| format!("{} env var must be an integer, eg: 60", ert))?);
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ns.expiration_time = Some(env::var(eet)
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.with_context(|| format!("{} env var must be defined, eg: 300", eet))?
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.parse()
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.with_context(|| format!("{} env var must be an integer, eg: 300", eet))?);
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ns.consul_node_name = Some(env::var(ecnd)
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.with_context(|| format!("{} env var must be defined", ecnd))?);
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match (ns.refresh_time, ns.expiration_time) {
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(Some(rt), Some(et)) if rt * 2 <= et => debug!("Checked refresh time is lower than expiration time"),
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(Some(rt), Some(et)) => return Err(anyhow!("Expiration time (currently: {}s) must be twice bigger than refresh time (currently: {}s)", rt, et)),
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_ => return Err(anyhow!("Please define refresh time and expiration time"))
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}
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return Ok(Self{});
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}
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}
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