1d781c5b20
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
221 lines
6.1 KiB
Rust
221 lines
6.1 KiB
Rust
use std::collections::HashSet;
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use std::fs::File;
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use std::time::Duration;
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use anyhow::{bail, Error};
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use nix::sys::stat::Mode;
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use serde::{Deserialize, Serialize};
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use proxmox::api::api;
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use proxmox::api::schema::{ApiStringFormat, Updater};
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use proxmox::tools::fs::{replace_file, CreateOptions};
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use proxmox_http::ProxyConfig;
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use crate::acme::AcmeClient;
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use crate::api2::types::{
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AcmeAccountName, AcmeDomain, ACME_DOMAIN_PROPERTY_SCHEMA, HTTP_PROXY_SCHEMA,
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};
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const CONF_FILE: &str = configdir!("/node.cfg");
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const LOCK_FILE: &str = configdir!("/.node.lck");
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const LOCK_TIMEOUT: Duration = Duration::from_secs(10);
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pub fn lock() -> Result<File, Error> {
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proxmox::tools::fs::open_file_locked(LOCK_FILE, LOCK_TIMEOUT, true)
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}
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/// Read the Node Config.
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pub fn config() -> Result<(NodeConfig, [u8; 32]), Error> {
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let content =
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proxmox::tools::fs::file_read_optional_string(CONF_FILE)?.unwrap_or_else(|| "".to_string());
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let digest = openssl::sha::sha256(content.as_bytes());
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let data: NodeConfig = crate::tools::config::from_str(&content, &NodeConfig::API_SCHEMA)?;
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Ok((data, digest))
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}
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/// Write the Node Config, requires the write lock to be held.
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pub fn save_config(config: &NodeConfig) -> Result<(), Error> {
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config.validate()?;
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let raw = crate::tools::config::to_bytes(config, &NodeConfig::API_SCHEMA)?;
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let backup_user = crate::backup::backup_user()?;
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let options = CreateOptions::new()
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.perm(Mode::from_bits_truncate(0o0640))
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.owner(nix::unistd::ROOT)
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.group(backup_user.gid);
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replace_file(CONF_FILE, &raw, options)
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}
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#[api(
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properties: {
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account: { type: AcmeAccountName },
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}
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)]
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#[derive(Deserialize, Serialize)]
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/// The ACME configuration.
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///
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/// Currently only contains the name of the account use.
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pub struct AcmeConfig {
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/// Account to use to acquire ACME certificates.
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account: AcmeAccountName,
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}
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#[api(
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properties: {
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acme: {
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optional: true,
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type: String,
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format: &ApiStringFormat::PropertyString(&AcmeConfig::API_SCHEMA),
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},
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acmedomain0: {
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schema: ACME_DOMAIN_PROPERTY_SCHEMA,
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optional: true,
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},
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acmedomain1: {
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schema: ACME_DOMAIN_PROPERTY_SCHEMA,
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optional: true,
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},
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acmedomain2: {
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schema: ACME_DOMAIN_PROPERTY_SCHEMA,
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optional: true,
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},
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acmedomain3: {
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schema: ACME_DOMAIN_PROPERTY_SCHEMA,
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optional: true,
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},
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acmedomain4: {
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schema: ACME_DOMAIN_PROPERTY_SCHEMA,
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optional: true,
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},
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"http-proxy": {
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schema: HTTP_PROXY_SCHEMA,
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optional: true,
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},
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},
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)]
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#[derive(Deserialize, Serialize, Updater)]
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#[serde(rename_all = "kebab-case")]
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/// Node specific configuration.
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pub struct NodeConfig {
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/// The acme account to use on this node.
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#[serde(skip_serializing_if = "Updater::is_empty")]
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acme: Option<String>,
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#[serde(skip_serializing_if = "Updater::is_empty")]
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acmedomain0: Option<String>,
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#[serde(skip_serializing_if = "Updater::is_empty")]
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acmedomain1: Option<String>,
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#[serde(skip_serializing_if = "Updater::is_empty")]
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acmedomain2: Option<String>,
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#[serde(skip_serializing_if = "Updater::is_empty")]
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acmedomain3: Option<String>,
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#[serde(skip_serializing_if = "Updater::is_empty")]
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acmedomain4: Option<String>,
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#[serde(skip_serializing_if = "Updater::is_empty")]
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http_proxy: Option<String>,
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}
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impl NodeConfig {
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pub fn acme_config(&self) -> Option<Result<AcmeConfig, Error>> {
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self.acme.as_deref().map(|config| -> Result<_, Error> {
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Ok(crate::tools::config::from_property_string(
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config,
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&AcmeConfig::API_SCHEMA,
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)?)
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})
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}
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pub async fn acme_client(&self) -> Result<AcmeClient, Error> {
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let account = if let Some(cfg) = self.acme_config().transpose()? {
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cfg.account
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} else {
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AcmeAccountName::from_string("default".to_string())? // should really not happen
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};
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AcmeClient::load(&account).await
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}
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pub fn acme_domains(&self) -> AcmeDomainIter {
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AcmeDomainIter::new(self)
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}
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/// Returns the parsed ProxyConfig
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pub fn http_proxy(&self) -> Option<ProxyConfig> {
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if let Some(http_proxy) = &self.http_proxy {
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match ProxyConfig::parse_proxy_url(&http_proxy) {
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Ok(proxy) => Some(proxy),
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Err(_) => None,
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}
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} else {
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None
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}
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}
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/// Sets the HTTP proxy configuration
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pub fn set_http_proxy(&mut self, http_proxy: Option<String>) {
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self.http_proxy = http_proxy;
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}
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/// Validate the configuration.
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pub fn validate(&self) -> Result<(), Error> {
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let mut domains = HashSet::new();
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for domain in self.acme_domains() {
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let domain = domain?;
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if !domains.insert(domain.domain.to_lowercase()) {
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bail!("duplicate domain '{}' in ACME config", domain.domain);
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}
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}
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Ok(())
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}
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}
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pub struct AcmeDomainIter<'a> {
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config: &'a NodeConfig,
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index: usize,
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}
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impl<'a> AcmeDomainIter<'a> {
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fn new(config: &'a NodeConfig) -> Self {
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Self { config, index: 0 }
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}
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}
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impl<'a> Iterator for AcmeDomainIter<'a> {
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type Item = Result<AcmeDomain, Error>;
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fn next(&mut self) -> Option<Self::Item> {
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let domain = loop {
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let index = self.index;
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self.index += 1;
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let domain = match index {
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0 => self.config.acmedomain0.as_deref(),
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1 => self.config.acmedomain1.as_deref(),
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2 => self.config.acmedomain2.as_deref(),
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3 => self.config.acmedomain3.as_deref(),
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4 => self.config.acmedomain4.as_deref(),
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_ => return None,
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};
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if let Some(domain) = domain {
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break domain;
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}
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};
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Some(crate::tools::config::from_property_string(
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domain,
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&AcmeDomain::API_SCHEMA,
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))
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}
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}
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