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Local code formatting

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This commit is contained in:
Quentin 2021-09-20 11:30:00 +02:00
parent 195aec2cfe
commit 2e797d2f62
Signed by: quentin
GPG key ID: A98E9B769E4FF428
13 changed files with 424 additions and 358 deletions
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2
.rustfmt.toml Normal file
View file

@ -0,0 +1,2 @@
hard_tabs = false
tab_spaces = 2

10
src/config/mod.rs
View file

@ -3,9 +3,13 @@ mod options;
mod options_test;
mod runtime;
pub use options::{ConfigOpts, ConfigOptsConsul, ConfigOptsAcme, ConfigOptsFirewall, ConfigOptsIgd};
pub use runtime::{RuntimeConfig, RuntimeConfigAcme, RuntimeConfigConsul, RuntimeConfigFirewall, RuntimeConfigIgd};
pub use options::{
ConfigOpts, ConfigOptsAcme, ConfigOptsConsul, ConfigOptsFirewall, ConfigOptsIgd,
};
pub use runtime::{
RuntimeConfig, RuntimeConfigAcme, RuntimeConfigConsul, RuntimeConfigFirewall, RuntimeConfigIgd,
};
pub const EXPIRATION_TIME: u16 = 300;
pub const REFRESH_TIME: u16 = 60;
pub const CONSUL_URL: &str = "http://127.0.0.1:8500";
pub const CONSUL_URL: &str = "http://127.0.0.1:8500";

116
src/config/options.rs
View file

@ -12,93 +12,95 @@ use crate::config::RuntimeConfig;
// There is no *need* to have a 'DIPLONAT_XXX_*' prefix for all config options.
// If some config options are shared by several modules, a ConfigOptsBase could
// contain them, and parse the 'DIPLONAT_*' prefix directly.
// Only in runtime.rs would these options find their proper location in each
// Only in runtime.rs would these options find their proper location in each
// module's struct.
/// Consul configuration options
#[derive(Clone, Default, Deserialize)]
pub struct ConfigOptsConsul {
/// Consul's node name [default: None]
pub node_name: Option<String>,
/// Consul's REST URL [default: "http://127.0.0.1:8500"]
pub url: Option<String>,
/// Consul's node name [default: None]
pub node_name: Option<String>,
/// Consul's REST URL [default: "http://127.0.0.1:8500"]
pub url: Option<String>,
}
/// ACME configuration options
#[derive(Clone, Default, Deserialize)]
pub struct ConfigOptsAcme {
/// Whether the ACME module is enabled [default: false]
#[serde(default)]
pub enable: bool,
/// Whether the ACME module is enabled [default: false]
#[serde(default)]
pub enable: bool,
/// The default domain holder's e-mail [default: None]
pub email: Option<String>,
/// The default domain holder's e-mail [default: None]
pub email: Option<String>,
}
/// Firewall configuration options
#[derive(Clone, Default, Deserialize)]
pub struct ConfigOptsFirewall {
/// Whether the firewall module is enabled [default: false]
#[serde(default)]
pub enable: bool,
/// Whether the firewall module is enabled [default: false]
#[serde(default)]
pub enable: bool,
/// Refresh time for firewall rules [default: 300]
pub refresh_time: Option<u16>,
/// Refresh time for firewall rules [default: 300]
pub refresh_time: Option<u16>,
}
/// IGD configuration options
#[derive(Clone, Default, Deserialize)]
pub struct ConfigOptsIgd {
/// Whether the IGD module is enabled [default: false]
#[serde(default)]
pub enable: bool,
/// Whether the IGD module is enabled [default: false]
#[serde(default)]
pub enable: bool,
/// This node's private IP address [default: None]
pub private_ip: Option<String>,
/// Expiration time for IGD rules [default: 60]
pub expiration_time: Option<u16>,
/// Refresh time for IGD rules [default: 300]
pub refresh_time: Option<u16>,
/// This node's private IP address [default: None]
pub private_ip: Option<String>,
/// Expiration time for IGD rules [default: 60]
pub expiration_time: Option<u16>,
/// Refresh time for IGD rules [default: 300]
pub refresh_time: Option<u16>,
}
/// Model of all potential configuration options
pub struct ConfigOpts {
pub consul: ConfigOptsConsul,
pub acme: ConfigOptsAcme,
pub firewall: ConfigOptsFirewall,
pub igd: ConfigOptsIgd,
pub consul: ConfigOptsConsul,
pub acme: ConfigOptsAcme,
pub firewall: ConfigOptsFirewall,
pub igd: ConfigOptsIgd,
}
impl ConfigOpts {
pub fn from_env() -> Result<RuntimeConfig> {
let consul: ConfigOptsConsul = envy::prefixed("DIPLONAT_CONSUL_").from_env()?;
let acme: ConfigOptsAcme = envy::prefixed("DIPLONAT_ACME_").from_env()?;
let firewall: ConfigOptsFirewall = envy::prefixed("DIPLONAT_FIREWALL_").from_env()?;
let igd: ConfigOptsIgd = envy::prefixed("DIPLONAT_IGD_").from_env()?;
pub fn from_env() -> Result<RuntimeConfig> {
let consul: ConfigOptsConsul = envy::prefixed("DIPLONAT_CONSUL_").from_env()?;
let acme: ConfigOptsAcme = envy::prefixed("DIPLONAT_ACME_").from_env()?;
let firewall: ConfigOptsFirewall = envy::prefixed("DIPLONAT_FIREWALL_").from_env()?;
let igd: ConfigOptsIgd = envy::prefixed("DIPLONAT_IGD_").from_env()?;
RuntimeConfig::new(Self {
consul,
acme,
firewall,
igd,
})
}
RuntimeConfig::new(Self {
consul,
acme,
firewall,
igd,
})
}
// Currently only used in tests
#[allow(dead_code)]
pub fn from_iter<Iter: Clone>(iter: Iter) -> Result<RuntimeConfig>
where Iter: IntoIterator<Item = (String, String)> {
let consul: ConfigOptsConsul = envy::prefixed("DIPLONAT_CONSUL_").from_iter(iter.clone())?;
let acme: ConfigOptsAcme = envy::prefixed("DIPLONAT_ACME_").from_iter(iter.clone())?;
let firewall: ConfigOptsFirewall = envy::prefixed("DIPLONAT_FIREWALL_").from_iter(iter.clone())?;
let igd: ConfigOptsIgd = envy::prefixed("DIPLONAT_IGD_").from_iter(iter.clone())?;
// Currently only used in tests
#[allow(dead_code)]
pub fn from_iter<Iter: Clone>(iter: Iter) -> Result<RuntimeConfig>
where
Iter: IntoIterator<Item = (String, String)>,
{
let consul: ConfigOptsConsul = envy::prefixed("DIPLONAT_CONSUL_").from_iter(iter.clone())?;
let acme: ConfigOptsAcme = envy::prefixed("DIPLONAT_ACME_").from_iter(iter.clone())?;
let firewall: ConfigOptsFirewall =
envy::prefixed("DIPLONAT_FIREWALL_").from_iter(iter.clone())?;
let igd: ConfigOptsIgd = envy::prefixed("DIPLONAT_IGD_").from_iter(iter.clone())?;
RuntimeConfig::new(Self {
consul,
acme,
firewall,
igd,
})
}
}
RuntimeConfig::new(Self {
consul,
acme,
firewall,
igd,
})
}
}

216
src/config/options_test.rs
View file

@ -5,28 +5,43 @@ use crate::config::*;
// Environment variables are set for the entire process and
// tests are run whithin the same process.
// => We cannot test ConfigOpts::from_env(),
// => We cannot test ConfigOpts::from_env(),
// because tests modify each other's environment.
// This is why we only test ConfigOpts::from_iter(iter).
fn minimal_valid_options() -> HashMap<String, String> {
let mut opts = HashMap::new();
opts.insert("DIPLONAT_CONSUL_NODE_NAME".to_string(), "consul_node".to_string());
opts
let mut opts = HashMap::new();
opts.insert(
"DIPLONAT_CONSUL_NODE_NAME".to_string(),
"consul_node".to_string(),
);
opts
}
fn all_valid_options() -> HashMap<String, String> {
let mut opts = minimal_valid_options();
opts.insert("DIPLONAT_CONSUL_URL".to_string(), "http://127.0.0.1:9999".to_string());
opts.insert("DIPLONAT_ACME_ENABLE".to_string(), "true".to_string());
opts.insert("DIPLONAT_ACME_EMAIL".to_string(), "bozo@bozo.net".to_string());
opts.insert("DIPLONAT_FIREWALL_ENABLE".to_string(), "true".to_string());
opts.insert("DIPLONAT_FIREWALL_REFRESH_TIME".to_string(), "20".to_string());
opts.insert("DIPLONAT_IGD_ENABLE".to_string(), "true".to_string());
opts.insert("DIPLONAT_IGD_PRIVATE_IP".to_string(), "172.123.43.555".to_string());
opts.insert("DIPLONAT_IGD_EXPIRATION_TIME".to_string(), "60".to_string());
opts.insert("DIPLONAT_IGD_REFRESH_TIME".to_string(), "10".to_string());
opts
let mut opts = minimal_valid_options();
opts.insert(
"DIPLONAT_CONSUL_URL".to_string(),
"http://127.0.0.1:9999".to_string(),
);
opts.insert("DIPLONAT_ACME_ENABLE".to_string(), "true".to_string());
opts.insert(
"DIPLONAT_ACME_EMAIL".to_string(),
"bozo@bozo.net".to_string(),
);
opts.insert("DIPLONAT_FIREWALL_ENABLE".to_string(), "true".to_string());
opts.insert(
"DIPLONAT_FIREWALL_REFRESH_TIME".to_string(),
"20".to_string(),
);
opts.insert("DIPLONAT_IGD_ENABLE".to_string(), "true".to_string());
opts.insert(
"DIPLONAT_IGD_PRIVATE_IP".to_string(),
"172.123.43.555".to_string(),
);
opts.insert("DIPLONAT_IGD_EXPIRATION_TIME".to_string(), "60".to_string());
opts.insert("DIPLONAT_IGD_REFRESH_TIME".to_string(), "10".to_string());
opts
}
// #[test]
@ -39,107 +54,108 @@ fn all_valid_options() -> HashMap<String, String> {
#[test]
#[should_panic]
fn err_empty_env() {
std::env::remove_var("DIPLONAT_CONSUL_NODE_NAME");
let opts: HashMap<String, String> = HashMap::new();
ConfigOpts::from_iter(opts).unwrap();
std::env::remove_var("DIPLONAT_CONSUL_NODE_NAME");
let opts: HashMap<String, String> = HashMap::new();
ConfigOpts::from_iter(opts).unwrap();
}
#[test]
fn ok_minimal_valid_options() {
let opts = minimal_valid_options();
let rt_config = ConfigOpts::from_iter(opts.clone()).unwrap();
let opts = minimal_valid_options();
let rt_config = ConfigOpts::from_iter(opts.clone()).unwrap();
assert_eq!(
&rt_config.consul.node_name,
opts.get(&"DIPLONAT_CONSUL_NODE_NAME".to_string()).unwrap()
);
assert_eq!(
rt_config.consul.url,
CONSUL_URL.to_string()
);
assert!(rt_config.acme.is_none());
assert!(rt_config.firewall.is_none());
assert!(rt_config.igd.is_none());
/*assert_eq!(
rt_config.firewall.refresh_time,
Duration::from_secs(REFRESH_TIME.into())
);
assert_eq!(
&rt_config.igd.private_ip,
opts.get(&"DIPLONAT_PRIVATE_IP".to_string()).unwrap()
);
assert_eq!(
rt_config.igd.expiration_time,
Duration::from_secs(EXPIRATION_TIME.into())
);
assert_eq!(
rt_config.igd.refresh_time,
Duration::from_secs(REFRESH_TIME.into())
);*/
assert_eq!(
&rt_config.consul.node_name,
opts.get(&"DIPLONAT_CONSUL_NODE_NAME".to_string()).unwrap()
);
assert_eq!(rt_config.consul.url, CONSUL_URL.to_string());
assert!(rt_config.acme.is_none());
assert!(rt_config.firewall.is_none());
assert!(rt_config.igd.is_none());
/*assert_eq!(
rt_config.firewall.refresh_time,
Duration::from_secs(REFRESH_TIME.into())
);
assert_eq!(
&rt_config.igd.private_ip,
opts.get(&"DIPLONAT_PRIVATE_IP".to_string()).unwrap()
);
assert_eq!(
rt_config.igd.expiration_time,
Duration::from_secs(EXPIRATION_TIME.into())
);
assert_eq!(
rt_config.igd.refresh_time,
Duration::from_secs(REFRESH_TIME.into())
);*/
}
#[test]
#[should_panic]
fn err_invalid_igd_options() {
let mut opts = minimal_valid_options();
opts.insert("DIPLONAT_IGD_ENABLE".to_string(), "true".to_string());
opts.insert("DIPLONAT_IGD_EXPIRATION_TIME".to_string(), "60".to_string());
opts.insert("DIPLONAT_IGD_REFRESH_TIME".to_string(), "60".to_string());
ConfigOpts::from_iter(opts).unwrap();
let mut opts = minimal_valid_options();
opts.insert("DIPLONAT_IGD_ENABLE".to_string(), "true".to_string());
opts.insert("DIPLONAT_IGD_EXPIRATION_TIME".to_string(), "60".to_string());
opts.insert("DIPLONAT_IGD_REFRESH_TIME".to_string(), "60".to_string());
ConfigOpts::from_iter(opts).unwrap();
}
#[test]
fn ok_all_valid_options() {
let opts = all_valid_options();
let rt_config = ConfigOpts::from_iter(opts.clone()).unwrap();
let opts = all_valid_options();
let rt_config = ConfigOpts::from_iter(opts.clone()).unwrap();
let firewall_refresh_time = Duration::from_secs(
opts.get(&"DIPLONAT_FIREWALL_REFRESH_TIME".to_string()).unwrap()
.parse::<u64>().unwrap()
.into());
let igd_expiration_time = Duration::from_secs(
opts.get(&"DIPLONAT_IGD_EXPIRATION_TIME".to_string()).unwrap()
.parse::<u64>().unwrap()
.into());
let igd_refresh_time = Duration::from_secs(
opts.get(&"DIPLONAT_IGD_REFRESH_TIME".to_string()).unwrap()
.parse::<u64>().unwrap()
.into());
let firewall_refresh_time = Duration::from_secs(
opts
.get(&"DIPLONAT_FIREWALL_REFRESH_TIME".to_string())
.unwrap()
.parse::<u64>()
.unwrap()
.into(),
);
let igd_expiration_time = Duration::from_secs(
opts
.get(&"DIPLONAT_IGD_EXPIRATION_TIME".to_string())
.unwrap()
.parse::<u64>()
.unwrap()
.into(),
);
let igd_refresh_time = Duration::from_secs(
opts
.get(&"DIPLONAT_IGD_REFRESH_TIME".to_string())
.unwrap()
.parse::<u64>()
.unwrap()
.into(),
);
assert_eq!(
&rt_config.consul.node_name,
opts.get(&"DIPLONAT_CONSUL_NODE_NAME".to_string()).unwrap()
);
assert_eq!(
&rt_config.consul.url,
opts.get(&"DIPLONAT_CONSUL_URL".to_string()).unwrap()
);
assert_eq!(
&rt_config.consul.node_name,
opts.get(&"DIPLONAT_CONSUL_NODE_NAME".to_string()).unwrap()
);
assert_eq!(
&rt_config.consul.url,
opts.get(&"DIPLONAT_CONSUL_URL".to_string()).unwrap()
);
assert!(rt_config.acme.is_some());
let acme = rt_config.acme.unwrap();
assert_eq!(
&acme.email,
opts.get(&"DIPLONAT_ACME_EMAIL".to_string()).unwrap());
assert!(rt_config.acme.is_some());
let acme = rt_config.acme.unwrap();
assert_eq!(
&acme.email,
opts.get(&"DIPLONAT_ACME_EMAIL".to_string()).unwrap()
);
assert!(rt_config.firewall.is_some());
let firewall = rt_config.firewall.unwrap();
assert_eq!(
firewall.refresh_time,
firewall_refresh_time
);
assert!(rt_config.firewall.is_some());
let firewall = rt_config.firewall.unwrap();
assert_eq!(firewall.refresh_time, firewall_refresh_time);
assert!(rt_config.igd.is_some());
let igd = rt_config.igd.unwrap();
assert_eq!(
&igd.private_ip,
opts.get(&"DIPLONAT_IGD_PRIVATE_IP".to_string()).unwrap()
);
assert_eq!(
igd.expiration_time,
igd_expiration_time
);
assert_eq!(
igd.refresh_time,
igd_refresh_time
);
}
assert!(rt_config.igd.is_some());
let igd = rt_config.igd.unwrap();
assert_eq!(
&igd.private_ip,
opts.get(&"DIPLONAT_IGD_PRIVATE_IP".to_string()).unwrap()
);
assert_eq!(igd.expiration_time, igd_expiration_time);
assert_eq!(igd.refresh_time, igd_refresh_time);
}

148
src/config/runtime.rs
View file

@ -1,8 +1,10 @@
use std::time::Duration;
use anyhow::{Result, anyhow};
use anyhow::{anyhow, Result};
use crate::config::{ConfigOpts, ConfigOptsConsul, ConfigOptsAcme, ConfigOptsFirewall, ConfigOptsIgd};
use crate::config::{
ConfigOpts, ConfigOptsAcme, ConfigOptsConsul, ConfigOptsFirewall, ConfigOptsIgd,
};
// This code is inspired by the Trunk crate (https://github.com/thedodd/trunk)
@ -13,118 +15,116 @@ use crate::config::{ConfigOpts, ConfigOptsConsul, ConfigOptsAcme, ConfigOptsFire
#[derive(Debug)]
pub struct RuntimeConfigConsul {
pub node_name: String,
pub url: String,
pub node_name: String,
pub url: String,
}
#[derive(Debug)]
pub struct RuntimeConfigAcme {
pub email: String,
pub email: String,
}
#[derive(Debug)]
pub struct RuntimeConfigFirewall {
pub refresh_time: Duration,
pub refresh_time: Duration,
}
#[derive(Debug)]
pub struct RuntimeConfigIgd {
pub private_ip: String,
pub expiration_time: Duration,
pub refresh_time: Duration,
pub private_ip: String,
pub expiration_time: Duration,
pub refresh_time: Duration,
}
#[derive(Debug)]
pub struct RuntimeConfig {
pub consul: RuntimeConfigConsul,
pub acme: Option<RuntimeConfigAcme>,
pub firewall: Option<RuntimeConfigFirewall>,
pub igd: Option<RuntimeConfigIgd>,
pub consul: RuntimeConfigConsul,
pub acme: Option<RuntimeConfigAcme>,
pub firewall: Option<RuntimeConfigFirewall>,
pub igd: Option<RuntimeConfigIgd>,
}
impl RuntimeConfig {
pub fn new(opts: ConfigOpts) -> Result<Self> {
let consul = RuntimeConfigConsul::new(opts.consul.clone())?;
let acme = RuntimeConfigAcme::new(opts.acme.clone())?;
let firewall = RuntimeConfigFirewall::new(opts.firewall.clone())?;
let igd = RuntimeConfigIgd::new(opts.igd.clone())?;
pub fn new(opts: ConfigOpts) -> Result<Self> {
let consul = RuntimeConfigConsul::new(opts.consul.clone())?;
let acme = RuntimeConfigAcme::new(opts.acme.clone())?;
let firewall = RuntimeConfigFirewall::new(opts.firewall.clone())?;
let igd = RuntimeConfigIgd::new(opts.igd.clone())?;
Ok(Self {
acme,
consul,
firewall,
igd,
})
}
Ok(Self {
acme,
consul,
firewall,
igd,
})
}
}
impl RuntimeConfigConsul {
pub(super) fn new(opts: ConfigOptsConsul) -> Result<Self> {
let node_name = opts.node_name.expect(
"'DIPLONAT_CONSUL_NODE_NAME' is required");
let url = opts.url.unwrap_or(super::CONSUL_URL.to_string());
pub(super) fn new(opts: ConfigOptsConsul) -> Result<Self> {
let node_name = opts
.node_name
.expect("'DIPLONAT_CONSUL_NODE_NAME' is required");
let url = opts.url.unwrap_or(super::CONSUL_URL.to_string());
Ok(Self {
node_name,
url,
})
}
Ok(Self { node_name, url })
}
}
impl RuntimeConfigAcme {
pub fn new(opts: ConfigOptsAcme) -> Result<Option<Self>> {
if !opts.enable {
return Ok(None);
}
pub fn new(opts: ConfigOptsAcme) -> Result<Option<Self>> {
if !opts.enable {
return Ok(None);
}
let email = opts.email.expect(
"'DIPLONAT_ACME_EMAIL' is required if ACME is enabled");
let email = opts
.email
.expect("'DIPLONAT_ACME_EMAIL' is required if ACME is enabled");
Ok(Some(Self {
email,
}))
}
Ok(Some(Self { email }))
}
}
impl RuntimeConfigFirewall {
pub(super) fn new(opts: ConfigOptsFirewall) -> Result<Option<Self>> {
if !opts.enable {
return Ok(None);
}
pub(super) fn new(opts: ConfigOptsFirewall) -> Result<Option<Self>> {
if !opts.enable {
return Ok(None);
}
let refresh_time = Duration::from_secs(
opts.refresh_time.unwrap_or(super::REFRESH_TIME).into());
let refresh_time = Duration::from_secs(opts.refresh_time.unwrap_or(super::REFRESH_TIME).into());
Ok(Some(Self {
refresh_time,
}))
}
Ok(Some(Self { refresh_time }))
}
}
impl RuntimeConfigIgd {
pub(super) fn new(opts: ConfigOptsIgd) -> Result<Option<Self>> {
if !opts.enable {
return Ok(None);
}
pub(super) fn new(opts: ConfigOptsIgd) -> Result<Option<Self>> {
if !opts.enable {
return Ok(None);
}
let private_ip = opts.private_ip.expect(
"'DIPLONAT_IGD_PRIVATE_IP' is required if IGD is enabled");
let expiration_time = Duration::from_secs(
opts.expiration_time.unwrap_or(super::EXPIRATION_TIME).into());
let refresh_time = Duration::from_secs(
opts.refresh_time.unwrap_or(super::REFRESH_TIME).into());
let private_ip = opts
.private_ip
.expect("'DIPLONAT_IGD_PRIVATE_IP' is required if IGD is enabled");
let expiration_time = Duration::from_secs(
opts
.expiration_time
.unwrap_or(super::EXPIRATION_TIME)
.into(),
);
let refresh_time = Duration::from_secs(opts.refresh_time.unwrap_or(super::REFRESH_TIME).into());
if refresh_time.as_secs() * 2 > expiration_time.as_secs() {
return Err(anyhow!(
if refresh_time.as_secs() * 2 > expiration_time.as_secs() {
return Err(anyhow!(
"IGD expiration time (currently: {}s) must be at least twice bigger than refresh time (currently: {}s)",
expiration_time.as_secs(),
refresh_time.as_secs()));
}
}
Ok(Some(Self {
private_ip,
expiration_time,
refresh_time,
}))
}
}
Ok(Some(Self {
private_ip,
expiration_time,
refresh_time,
}))
}
}

18
src/consul.rs
View file

@ -1,22 +1,22 @@
use std::collections::HashMap;
use anyhow::{Result, anyhow};
use serde::{Serialize, Deserialize};
use anyhow::{anyhow, Result};
use serde::{Deserialize, Serialize};
#[derive(Serialize, Deserialize, Debug)]
pub struct ServiceEntry {
pub Tags: Vec<String>
pub Tags: Vec<String>,
}
#[derive(Serialize, Deserialize, Debug)]
pub struct CatalogNode {
pub Services: HashMap<String, ServiceEntry>
pub Services: HashMap<String, ServiceEntry>,
}
pub struct Consul {
client: reqwest::Client,
url: String,
idx: Option<u64>
idx: Option<u64>,
}
impl Consul {
@ -24,7 +24,7 @@ impl Consul {
return Self {
client: reqwest::Client::new(),
url: url.to_string(),
idx: None
idx: None,
};
}
@ -35,16 +35,16 @@ impl Consul {
pub async fn watch_node(&mut self, host: &str) -> Result<CatalogNode> {
let url = match self.idx {
Some(i) => format!("{}/v1/catalog/node/{}?index={}", self.url, host, i),
None => format!("{}/v1/catalog/node/{}", self.url, host)
None => format!("{}/v1/catalog/node/{}", self.url, host),
};
let http = self.client.get(&url).send().await?;
self.idx = match http.headers().get("X-Consul-Index") {
Some(v) => Some(v.to_str()?.parse::<u64>()?),
None => return Err(anyhow!("X-Consul-Index header not found"))
None => return Err(anyhow!("X-Consul-Index header not found")),
};
let resp: CatalogNode = http.json().await?;
return Ok(resp)
return Ok(resp);
}
}

29
src/consul_actor.rs
View file

@ -4,8 +4,8 @@ use std::time::Duration;
use anyhow::Result;
use log::*;
use serde::{Serialize, Deserialize};
use serde_lexpr::{from_str,error};
use serde::{Deserialize, Serialize};
use serde_lexpr::{error, from_str};
use tokio::sync::watch;
use tokio::time::delay_for;
@ -16,12 +16,12 @@ use crate::messages;
#[derive(Serialize, Deserialize, Debug)]
pub enum DiplonatParameter {
tcp_port(HashSet<u16>),
udp_port(HashSet<u16>)
udp_port(HashSet<u16>),
}
#[derive(Serialize, Deserialize, Debug)]
pub enum DiplonatConsul {
diplonat(Vec<DiplonatParameter>)
diplonat(Vec<DiplonatParameter>),
}
pub struct ConsulActor {
@ -31,13 +31,16 @@ pub struct ConsulActor {
node: String,
retries: u32,
tx_open_ports: watch::Sender<messages::PublicExposedPorts>
tx_open_ports: watch::Sender<messages::PublicExposedPorts>,
}
fn retry_to_time(retries: u32, max_time: Duration) -> Duration {
// 1.2^x seems to be a good value to exponentially increase time at a good pace
// eg. 1.2^32 = 341 seconds ~= 5 minutes - ie. after 32 retries we wait 5 minutes
return Duration::from_secs(cmp::min(max_time.as_secs(), 1.2f64.powf(retries as f64) as u64))
return Duration::from_secs(cmp::min(
max_time.as_secs(),
1.2f64.powf(retries as f64) as u64,
));
}
fn to_parameters(catalog: &consul::CatalogNode) -> Vec<DiplonatConsul> {
@ -57,9 +60,9 @@ fn to_parameters(catalog: &consul::CatalogNode) -> Vec<DiplonatConsul> {
}
fn to_open_ports(params: &Vec<DiplonatConsul>) -> messages::PublicExposedPorts {
let mut op = messages::PublicExposedPorts {
let mut op = messages::PublicExposedPorts {
tcp_ports: HashSet::new(),
udp_ports: HashSet::new()
udp_ports: HashSet::new(),
};
for conf in params {
@ -77,9 +80,9 @@ fn to_open_ports(params: &Vec<DiplonatConsul>) -> messages::PublicExposedPorts {
impl ConsulActor {
pub fn new(config: RuntimeConfigConsul) -> Self {
let (tx, rx) = watch::channel(messages::PublicExposedPorts{
let (tx, rx) = watch::channel(messages::PublicExposedPorts {
tcp_ports: HashSet::new(),
udp_ports: HashSet::new()
udp_ports: HashSet::new(),
});
return Self {
@ -99,7 +102,11 @@ impl ConsulActor {
self.consul.watch_node_reset();
self.retries = cmp::min(std::u32::MAX - 1, self.retries) + 1;
let will_retry_in = retry_to_time(self.retries, Duration::from_secs(600));
error!("Failed to query consul. Will retry in {}s. {}", will_retry_in.as_secs(), e);
error!(
"Failed to query consul. Will retry in {}s. {}",
will_retry_in.as_secs(),
e
);
delay_for(will_retry_in).await;
continue;
}

23
src/diplonat.rs
View file

@ -1,4 +1,4 @@
use anyhow::{Result, anyhow};
use anyhow::{anyhow, Result};
use tokio::try_join;
use crate::config::ConfigOpts;
@ -17,22 +17,17 @@ impl Diplonat {
pub async fn new() -> Result<Self> {
let config = ConfigOpts::from_env()?;
println!("{:#?}", config);
let consul_actor = ConsulActor::new(config.consul);
let firewall_actor = FirewallActor::new(
config.firewall,
&consul_actor.rx_open_ports
).await?;
let igd_actor = IgdActor::new(
config.igd,
&consul_actor.rx_open_ports
).await?;
let firewall_actor = FirewallActor::new(config.firewall, &consul_actor.rx_open_ports).await?;
let igd_actor = IgdActor::new(config.igd, &consul_actor.rx_open_ports).await?;
if firewall_actor.is_none() && igd_actor.is_none() {
return Err(anyhow!(
"At least enable *one* module, otherwise it's boring!"));
"At least enable *one* module, otherwise it's boring!"
));
}
let ctx = Self {
@ -53,13 +48,13 @@ impl Diplonat {
async {
match firewall {
Some(x) => x.listen().await,
None => Ok(())
None => Ok(()),
}
},
async {
match igd {
Some(x) => x.listen().await,
None => Ok(())
None => Ok(()),
}
},
)?;

122
src/fw.rs
View file

@ -1,6 +1,6 @@
use std::collections::HashSet;
use anyhow::{Result,Context};
use anyhow::{Context, Result};
use iptables;
use log::*;
use regex::Regex;
@ -8,76 +8,92 @@ use regex::Regex;
use crate::messages;
pub fn setup(ipt: &iptables::IPTables) -> Result<()> {
// ensure we start from a clean state without any rule already set
cleanup(ipt)?;
// ensure we start from a clean state without any rule already set
cleanup(ipt)?;
ipt.new_chain("filter", "DIPLONAT").context("Failed to create new chain")?;
ipt.insert_unique("filter", "INPUT", "-j DIPLONAT", 1).context("Failed to insert jump rule")?;
ipt
.new_chain("filter", "DIPLONAT")
.context("Failed to create new chain")?;
ipt
.insert_unique("filter", "INPUT", "-j DIPLONAT", 1)
.context("Failed to insert jump rule")?;
Ok(())
Ok(())
}
pub fn open_ports(ipt: &iptables::IPTables, ports: messages::PublicExposedPorts) -> Result<()> {
for p in ports.tcp_ports {
ipt.append("filter", "DIPLONAT", &format!("-p tcp --dport {} -j ACCEPT", p)).context("Failed to insert port rule")?;
}
for p in ports.tcp_ports {
ipt
.append(
"filter",
"DIPLONAT",
&format!("-p tcp --dport {} -j ACCEPT", p),
)
.context("Failed to insert port rule")?;
}
for p in ports.udp_ports {
ipt.append("filter", "DIPLONAT", &format!("-p udp --dport {} -j ACCEPT", p)).context("Failed to insert port rule")?;
}
for p in ports.udp_ports {
ipt
.append(
"filter",
"DIPLONAT",
&format!("-p udp --dport {} -j ACCEPT", p),
)
.context("Failed to insert port rule")?;
}
Ok(())
Ok(())
}
pub fn get_opened_ports(ipt: &iptables::IPTables) -> Result<messages::PublicExposedPorts> {
let mut ports = messages::PublicExposedPorts {
tcp_ports: HashSet::new(),
udp_ports: HashSet::new()
};
let mut ports = messages::PublicExposedPorts {
tcp_ports: HashSet::new(),
udp_ports: HashSet::new(),
};
let list = ipt.list("filter", "DIPLONAT")?;
let re = Regex::new(r"\-A.*? \-p (\w+).*\-\-dport (\d+).*?\-j ACCEPT").context("Regex matching open ports encountered an unexpected rule")?;
for i in list {
let caps = re.captures(&i);
match caps {
Some(c) => {
if let (Some(raw_proto), Some(raw_port)) = (c.get(1), c.get(2)) {
let list = ipt.list("filter", "DIPLONAT")?;
let re = Regex::new(r"\-A.*? \-p (\w+).*\-\-dport (\d+).*?\-j ACCEPT")
.context("Regex matching open ports encountered an unexpected rule")?;
for i in list {
let caps = re.captures(&i);
match caps {
Some(c) => {
if let (Some(raw_proto), Some(raw_port)) = (c.get(1), c.get(2)) {
let proto = String::from(raw_proto.as_str());
let number = String::from(raw_port.as_str()).parse::<u16>()?;
let proto = String::from(raw_proto.as_str());
let number = String::from(raw_port.as_str()).parse::<u16>()?;
if proto == "tcp" {
ports.tcp_ports.insert(number);
} else {
ports.udp_ports.insert(number);
}
} else {
error!("Unexpected rule found in DIPLONAT chain")
}
},
_ => {}
if proto == "tcp" {
ports.tcp_ports.insert(number);
} else {
ports.udp_ports.insert(number);
}
} else {
error!("Unexpected rule found in DIPLONAT chain")
}
}
_ => {}
}
}
Ok(ports)
Ok(ports)
}
pub fn cleanup(ipt: &iptables::IPTables) -> Result<()> {
if ipt.chain_exists("filter", "DIPLONAT")? {
ipt.flush_chain("filter", "DIPLONAT").context("Failed to flush the DIPLONAT chain")?;
if ipt.exists("filter", "INPUT", "-j DIPLONAT")? {
ipt.delete("filter", "INPUT", "-j DIPLONAT").context("Failed to delete jump rule")?;
}
ipt.delete_chain("filter", "DIPLONAT").context("Failed to delete chain")?;
if ipt.chain_exists("filter", "DIPLONAT")? {
ipt
.flush_chain("filter", "DIPLONAT")
.context("Failed to flush the DIPLONAT chain")?;
if ipt.exists("filter", "INPUT", "-j DIPLONAT")? {
ipt
.delete("filter", "INPUT", "-j DIPLONAT")
.context("Failed to delete jump rule")?;
}
Ok(())
}
ipt
.delete_chain("filter", "DIPLONAT")
.context("Failed to delete chain")?;
}
Ok(())
}

44
src/fw_actor.rs
View file

@ -4,18 +4,15 @@ use anyhow::Result;
use iptables;
use log::*;
use tokio::{
select,
sync::watch,
time::{
Duration,
self,
}};
select,
sync::watch,
time::{self, Duration},
};
use crate::config::RuntimeConfigFirewall;
use crate::fw;
use crate::messages;
pub struct FirewallActor {
pub ipt: iptables::IPTables,
@ -26,13 +23,16 @@ pub struct FirewallActor {
}
impl FirewallActor {
pub async fn new(config: Option<RuntimeConfigFirewall>, rxp: &watch::Receiver<messages::PublicExposedPorts>) -> Result<Option<Self>> {
pub async fn new(
config: Option<RuntimeConfigFirewall>,
rxp: &watch::Receiver<messages::PublicExposedPorts>,
) -> Result<Option<Self>> {
if config.is_none() {
return Ok(None);
}
let config = config.unwrap();
let ctx = Self {
let ctx = Self {
ipt: iptables::new(false)?,
last_ports: messages::PublicExposedPorts::new(),
refresh: config.refresh_time,
@ -40,7 +40,7 @@ impl FirewallActor {
};
fw::setup(&ctx.ipt)?;
return Ok(Some(ctx));
}
@ -55,7 +55,9 @@ impl FirewallActor {
};
// 2. Update last ports if needed
if let Some(p) = new_ports { self.last_ports = p; }
if let Some(p) = new_ports {
self.last_ports = p;
}
// 3. Update firewall rules
match self.do_fw_update().await {
@ -68,18 +70,26 @@ impl FirewallActor {
pub async fn do_fw_update(&self) -> Result<()> {
let curr_opened_ports = fw::get_opened_ports(&self.ipt)?;
let diff_tcp = self.last_ports.tcp_ports.difference(&curr_opened_ports.tcp_ports).copied().collect::<HashSet<u16>>();
let diff_udp = self.last_ports.udp_ports.difference(&curr_opened_ports.udp_ports).copied().collect::<HashSet<u16>>();
let diff_tcp = self
.last_ports
.tcp_ports
.difference(&curr_opened_ports.tcp_ports)
.copied()
.collect::<HashSet<u16>>();
let diff_udp = self
.last_ports
.udp_ports
.difference(&curr_opened_ports.udp_ports)
.copied()
.collect::<HashSet<u16>>();
let ports_to_open = messages::PublicExposedPorts {
tcp_ports: diff_tcp,
udp_ports: diff_udp
tcp_ports: diff_tcp,
udp_ports: diff_udp,
};
fw::open_ports(&self.ipt, ports_to_open)?;
return Ok(());
}
}

46
src/igd_actor.rs
View file

@ -1,16 +1,14 @@
use std::net::SocketAddrV4;
use anyhow::{Result, Context};
use anyhow::{Context, Result};
use igd::aio::*;
use igd::PortMappingProtocol;
use log::*;
use tokio::{
select,
sync::watch,
time::{
Duration,
self,
}};
select,
sync::watch,
time::{self, Duration},
};
use crate::config::RuntimeConfigIgd;
use crate::messages;
@ -26,18 +24,21 @@ pub struct IgdActor {
}
impl IgdActor {
pub async fn new(config: Option<RuntimeConfigIgd>, rxp: &watch::Receiver<messages::PublicExposedPorts>) -> Result<Option<Self>> {
pub async fn new(
config: Option<RuntimeConfigIgd>,
rxp: &watch::Receiver<messages::PublicExposedPorts>,
) -> Result<Option<Self>> {
if config.is_none() {
return Ok(None);
}
let config = config.unwrap();
let gw = search_gateway(Default::default())
.await
.context("Failed to find IGD gateway")?;
.await
.context("Failed to find IGD gateway")?;
info!("IGD gateway: {}", gw);
let ctx = Self {
let ctx = Self {
expire: config.expiration_time,
gateway: gw,
last_ports: messages::PublicExposedPorts::new(),
@ -60,7 +61,9 @@ impl IgdActor {
};
// 2. Update last ports if needed
if let Some(p) = new_ports { self.last_ports = p; }
if let Some(p) = new_ports {
self.last_ports = p;
}
// 3. Flush IGD requests
match self.do_igd().await {
@ -72,15 +75,26 @@ impl IgdActor {
pub async fn do_igd(&self) -> Result<()> {
let actions = [
(PortMappingProtocol::TCP, &self.last_ports.tcp_ports),
(PortMappingProtocol::UDP, &self.last_ports.udp_ports)
(PortMappingProtocol::TCP, &self.last_ports.tcp_ports),
(PortMappingProtocol::UDP, &self.last_ports.udp_ports),
];
for (proto, list) in actions.iter() {
for port in *list {
let service_str = format!("{}:{}", self.private_ip, port);
let service = service_str.parse::<SocketAddrV4>().context("Invalid socket address")?;
self.gateway.add_port(*proto, *port, service, self.expire.as_secs() as u32, "diplonat").await?;
let service = service_str
.parse::<SocketAddrV4>()
.context("Invalid socket address")?;
self
.gateway
.add_port(
*proto,
*port,
service,
self.expire.as_secs() as u32,
"diplonat",
)
.await?;
debug!("IGD request successful for {:#?} {}", proto, service);
}
}

2
src/main.rs
View file

@ -7,8 +7,8 @@ mod fw_actor;
mod igd_actor;
mod messages;
use log::*;
use diplonat::Diplonat;
use log::*;
#[tokio::main]
async fn main() {

6
src/messages.rs
View file

@ -3,14 +3,14 @@ use std::collections::HashSet;
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct PublicExposedPorts {
pub tcp_ports: HashSet<u16>,
pub udp_ports: HashSet<u16>
pub udp_ports: HashSet<u16>,
}
impl PublicExposedPorts {
pub fn new() -> Self {
return Self {
tcp_ports: HashSet::new(),
udp_ports: HashSet::new()
}
udp_ports: HashSet::new(),
};
}
}