176 lines
4.7 KiB
Rust
176 lines
4.7 KiB
Rust
use crate::opts;
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use anyhow;
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use directories::ProjectDirs;
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use serde::Deserialize;
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use std::fs;
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use std::path::PathBuf;
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#[derive(Deserialize, Debug)]
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pub struct Entry {
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pub name: String,
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types: Option<Vec<String>>,
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fqdn: Option<String>,
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ttl: Option<u32>,
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}
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fn default_ttl() -> u32 {
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return 300;
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}
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#[derive(Deserialize, PartialEq, Debug)]
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pub enum IPSourceName {
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Ipify,
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Icanhazip,
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}
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impl Default for IPSourceName {
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fn default() -> Self {
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// Ipify was the first IP source gandi-live-dns had, before it supported
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// multiple sources. Keeping that as the default.
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Self::Ipify
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}
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}
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#[derive(Deserialize, Debug)]
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pub struct Config {
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fqdn: String,
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pub api_key: String,
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#[serde(default)]
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pub ip_source: IPSourceName,
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pub entry: Vec<Entry>,
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#[serde(default = "default_ttl")]
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pub ttl: u32,
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}
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const DEFAULT_TYPES: &'static [&'static str] = &["A"];
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impl Config {
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pub fn fqdn<'c>(entry: &'c Entry, config: &'c Config) -> &'c str {
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entry.fqdn.as_ref().unwrap_or(&config.fqdn).as_str()
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}
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pub fn ttl(entry: &Entry, config: &Config) -> u32 {
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entry.ttl.unwrap_or(config.ttl)
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}
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pub fn types<'e>(entry: &'e Entry) -> Vec<&'e str> {
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entry
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.types
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.as_ref()
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.and_then(|ts| Some(ts.iter().map(|t| t.as_str()).collect()))
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.unwrap_or_else(|| DEFAULT_TYPES.to_vec())
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}
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}
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fn load_config_from<P: std::convert::AsRef<std::path::Path>>(path: P) -> anyhow::Result<Config> {
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let contents = fs::read_to_string(path)?;
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Ok(toml::from_str(&contents)?)
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}
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pub fn load_config(opts: &opts::Opts) -> anyhow::Result<Config> {
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match &opts.config {
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Some(config_path) => load_config_from(&config_path),
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None => {
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let confpath = ProjectDirs::from("me", "kaangenc", "gandi-dynamic-dns")
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.and_then(|dir| Some(PathBuf::from(dir.config_dir()).join("config.toml")))
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.ok_or(anyhow::anyhow!("Can't find config directory"));
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confpath
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.and_then(|path| {
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println!("Checking for config: {}", path.to_string_lossy());
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load_config_from(path)
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})
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.or_else(|_| {
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let path = PathBuf::from(".").join("gandi.toml");
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println!("Checking for config: {}", path.to_string_lossy());
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load_config_from(path)
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})
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}
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}
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}
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pub fn validate_config(config: &Config) -> anyhow::Result<()> {
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for entry in &config.entry {
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for entry_type in Config::types(&entry) {
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if entry_type != "A" && entry_type != "AAAA" {
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anyhow::bail!("Entry {} has invalid type {}", entry.name, entry_type);
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}
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}
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}
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return Ok(());
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}
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#[cfg(test)]
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mod tests {
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use super::load_config;
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use crate::{config::IPSourceName, opts::Opts};
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use std::{env::temp_dir, fs};
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#[test]
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fn load_config_test() {
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let mut temp = temp_dir().join("gandi-live-dns-test");
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fs::create_dir_all(&temp).expect("Failed to create test dir");
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temp.push("test-1.toml");
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fs::write(
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&temp,
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r#"
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fqdn = "example.com"
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api_key = "xxx"
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ttl = 300
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[[entry]]
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name = "@"
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"#,
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)
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.expect("Failed to write test config file");
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let opts = Opts {
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config: Some(temp.to_string_lossy().to_string()),
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};
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let conf = load_config(&opts).expect("Failed to load config file");
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assert_eq!(conf.fqdn, "example.com");
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assert_eq!(conf.api_key, "xxx");
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assert_eq!(conf.ttl, 300);
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assert_eq!(conf.entry.len(), 1);
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assert_eq!(conf.entry[0].name, "@");
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// default
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assert_eq!(conf.ip_source, IPSourceName::Ipify);
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}
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#[test]
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fn load_config_change_ip_source() {
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let mut temp = temp_dir().join("gandi-live-dns-test");
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fs::create_dir_all(&temp).expect("Failed to create test dir");
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temp.push("test-2.toml");
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fs::write(
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&temp,
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r#"
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fqdn = "example.com"
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api_key = "yyy"
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ttl = 1200
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ip_source = "Icanhazip"
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[[entry]]
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name = "www"
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[[entry]]
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name = "@"
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"#,
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)
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.expect("Failed to write test config file");
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let opts = Opts {
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config: Some(temp.to_string_lossy().to_string()),
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};
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let conf = load_config(&opts).expect("Failed to load config file");
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assert_eq!(conf.fqdn, "example.com");
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assert_eq!(conf.api_key, "yyy");
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assert_eq!(conf.ttl, 1200);
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assert_eq!(conf.entry.len(), 2);
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assert_eq!(conf.entry[0].name, "www");
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assert_eq!(conf.entry[1].name, "@");
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assert_eq!(conf.ip_source, IPSourceName::Icanhazip);
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}
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}
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