121 lines
3.0 KiB
Rust
121 lines
3.0 KiB
Rust
use std::time::Duration;
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use anyhow::{anyhow, Result};
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use crate::config::{ConfigOpts, ConfigOptsAcme, ConfigOptsBase, ConfigOptsConsul};
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// This code is inspired by the Trunk crate (https://github.com/thedodd/trunk)
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// In this file, we take ConfigOpts and transform them into ready-to-use
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// RuntimeConfig. We apply default values and business logic.
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#[derive(Debug)]
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pub struct RuntimeConfigAcme {
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pub email: String,
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}
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#[derive(Debug)]
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pub struct RuntimeConfigConsul {
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pub node_name: String,
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pub url: String,
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}
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#[derive(Debug)]
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pub struct RuntimeConfigFirewall {
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pub refresh_time: Duration,
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}
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#[derive(Debug)]
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pub struct RuntimeConfigIgd {
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pub private_ip: String,
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pub expiration_time: Duration,
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pub refresh_time: Duration,
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}
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#[derive(Debug)]
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pub struct RuntimeConfig {
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pub acme: Option<RuntimeConfigAcme>,
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pub consul: RuntimeConfigConsul,
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pub firewall: RuntimeConfigFirewall,
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pub igd: RuntimeConfigIgd,
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}
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impl RuntimeConfig {
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pub fn new(opts: ConfigOpts) -> Result<Self> {
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let acme = RuntimeConfigAcme::new(opts.acme.clone())?;
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let consul = RuntimeConfigConsul::new(opts.consul.clone())?;
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let firewall = RuntimeConfigFirewall::new(opts.base.clone())?;
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let igd = RuntimeConfigIgd::new(opts.base.clone())?;
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Ok(Self {
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acme,
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consul,
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firewall,
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igd,
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})
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}
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}
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impl RuntimeConfigAcme {
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pub fn new(opts: ConfigOptsAcme) -> Result<Option<Self>> {
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if !opts.enable {
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return Ok(None)
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}
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let email = opts.email.expect(
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"'DIPLONAT_ACME_EMAIL' environment variable is required if 'DIPLONAT_ACME_ENABLE' == 'true'",
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);
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Ok(Some(Self { email }))
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}
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}
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impl RuntimeConfigConsul {
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pub(super) fn new(opts: ConfigOptsConsul) -> Result<Self> {
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let node_name = opts
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.node_name
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.expect("'DIPLONAT_CONSUL_NODE_NAME' environment variable is required");
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let url = opts.url.unwrap_or(super::CONSUL_URL.to_string());
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Ok(Self { node_name, url })
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}
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}
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impl RuntimeConfigFirewall {
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pub(super) fn new(opts: ConfigOptsBase) -> Result<Self> {
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let refresh_time = Duration::from_secs(opts.refresh_time.unwrap_or(super::REFRESH_TIME).into());
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Ok(Self { refresh_time })
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}
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}
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impl RuntimeConfigIgd {
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pub(super) fn new(opts: ConfigOptsBase) -> Result<Self> {
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let private_ip = opts
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.private_ip
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.expect("'DIPLONAT_PRIVATE_IP' environment variable is required");
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let expiration_time = Duration::from_secs(
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opts
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.expiration_time
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.unwrap_or(super::EXPIRATION_TIME)
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.into(),
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);
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let refresh_time = Duration::from_secs(opts.refresh_time.unwrap_or(super::REFRESH_TIME).into());
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if refresh_time.as_secs() * 2 > expiration_time.as_secs() {
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return Err(anyhow!(
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"IGD expiration time (currently: {}s) must be at least twice bigger than refresh time \
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(currently: {}s)",
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expiration_time.as_secs(),
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refresh_time.as_secs()
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))
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}
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Ok(Self {
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private_ip,
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expiration_time,
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refresh_time,
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})
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}
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}
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