* Some similar implementations:
* - https://github.com/rmarchant/gandi-ddns/blob/master/gandi_ddns.py
* - https://github.com/brianhp2/gandi-automatic-dns
+ *
+ * TODO:
+ * - Log to stdout with (at least) timestamps.
+ * - Renew function.
*/
#![cfg_attr(debug_assertions, allow(unused_variables, unused_imports, dead_code))]
-use std::{ fmt::format, fs::File, net::{ IpAddr, Ipv4Addr }, thread, time };
+use std::{ fs::File, net::{ IpAddr, Ipv4Addr }, thread, time };
use ron::{ de::from_reader, ser::to_writer };
use serde::{ Deserialize, Serialize };
-use serde_json::Value;
+use serde_json::{ Value, json };
+// A generic result of type 'T'.
type Result<T> = std::result::Result<T, Box<dyn std::error::Error>>;
#[derive(Debug)]
impl std::fmt::Display for Error {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
- f.write_str(&self.message)
+ write!(f, "Error: {}", &self.message)
}
}
impl std::error::Error for Error { }
-#[derive(Debug, Deserialize, Serialize)]
+#[derive(Debug, Clone, Deserialize, Serialize)]
struct Config {
delay_between_check: time::Duration,
api_key: String,
+ fqdn: String,
domains: Vec<String>,
+ ttl: i32
}
impl Config {
fn default() -> Self {
- Config { delay_between_check: time::Duration::from_secs(60), api_key: String::from(""), domains: Vec::new() }
+ Config { delay_between_check: time::Duration::from_secs(120), api_key: String::from(""), fqdn: String::from(""), domains: Vec::new(), ttl: 300 }
}
fn read(file_path: &str) -> Result<Config> {
const FILE_CONF: &str = "config.ron";
fn main() -> Result<()> {
+
println!("GANDI DynDNS");
let config = Config::read(FILE_CONF)?;
- println!("Configuration: {:?}", config);
+ println!("Configuration: {:?}", Config { api_key: String::from("*****"), ..config.clone() });
loop {
let time_beginning_loop = time::Instant::now();
- check_and_update_dns(&config.api_key);
+ if let Err(err) = check_and_update_dns(&config.api_key, &config.fqdn, &config.domains, config.ttl) {
+ println!("!! Error: {}", err);
+ }
let elapsed = time::Instant::now() - time_beginning_loop;
let to_wait = config.delay_between_check - elapsed;
thread::sleep(to_wait);
}
-
}
}
-fn check_and_update_dns(api_key: &str) {
- /*
- */
- //dbg!(get_real_ip());
+fn check_and_update_dns(api_key: &str, fqdn: &str, domains: &Vec<String>, ttl: i32) -> Result<()> {
+ let real_ip = get_real_ip()?;
+
+ for domain in domains {
+ let current_ip = get_current_record_ip(api_key, domain, fqdn)?;
+
+ if real_ip != current_ip {
+ println!("IP addresses don't match for domain {}: real = {}, dns = {}. Renewing DNS...", domain, real_ip, current_ip);
+ update_record_ip(api_key, domain, fqdn, real_ip, ttl)?;
+ println!("Renewing of {} successfully", domain);
+ }
+ }
- get_current_record_ip(api_key);
+ Ok(())
}
fn get_real_ip() -> Result<Ipv4Addr> {
let content = resp.text().unwrap();
match content.parse::<IpAddr>() {
Ok(IpAddr::V4(ip_v4)) => Ok(ip_v4),
- /*Err(_)*/ _ => Err(Box::new(Error { message: String::from("Can't parse IPv4 from ipify") }))
+ _ => Err(Box::new(Error { message: String::from("Can't parse IPv4 from ipify") }))
}
- //println!("Content:\n{:?}", content);
} else {
- //println!("Request unsuccessful:\n{:#?}", resp);
Err(Box::new(Error { message: format!("Request unsuccessful: {:#?}", resp) }))
},
Err(error) => {
- //println!("Error during request: {:?}", error);
Err(Box::new(Error { message: format!("Error during request: {:?}", error) }))
}
}
}
-fn request_livedns_gandi(api_key: &str, url_fragment: &str) -> Result<Value> {
+enum Method {
+ Put(String),
+ Get
+}
+
+fn request_livedns_gandi(api_key: &str, url_fragment: &str, method: Method) -> Result<Value> {
let url = format!("https://api.gandi.net/v5/livedns/{}", url_fragment);
let client = reqwest::blocking::Client::new();
- match client.get(&url).header("Authorization", format!("Apikey {}", api_key)).send() {
+ let request_builder =
+ match method {
+ Method::Put(body) => client.put(url).body(body),
+ Method::Get => client.get(url)
+ };
+
+ match request_builder.header("Authorization", format!("Apikey {}", api_key)).send() {
Ok(resp) =>
if resp.status().is_success() {
let content = resp.text().unwrap();
}
}
-fn get_current_record_ip(api_key: &str) -> Result<Ipv4Addr> {
-
- request_livedns_gandi(api_key, "domains/euphorik.ch/records/home/A")?; // TODO...
- // .map()
- //.map(|json_value| json_value["rrset_values"][0].as_str().unwrap())
-
- Result::Err(Box::new(Error { message: String::new() }))
-
+fn get_current_record_ip(api_key: &str, name: &str, fqdn: &str) -> Result<Ipv4Addr> {
+ let json_value = request_livedns_gandi(api_key, &format!("domains/{}/records/{}/A", fqdn, name), Method::Get)?;
- //let url = "https://api.gandi.net/v5/livedns/domains/euphorik.ch/records";
- //let url = "https://api.gandi.net/v5/livedns/domains"; // ?sharing_id="
- //let url = "https://api.gandi.net/v5/organization/organizations";
- //let url = "https://api.gandi.net/v5/livedns/domains/euphorik.ch/records/home/A";
-
- /*
- let client = reqwest::blocking::Client::new();
+ match &json_value["rrset_values"][0] {
+ Value::String(ip_str) =>
+ Ok(ip_str.parse()?),
+ _ =>
+ Result::Err(Box::new(Error { message: format!("Unable to extract the IP from the JSON answer: {}", json_value) }))
+ }
+}
- match client.get(url).header("Authorization", format!("Apikey {}", api_key)).send() {
- Ok(resp) =>
- if resp.status().is_success() {
- let content = resp.text().unwrap();
+fn update_record_ip(api_key: &str, name: &str, fqdn: &str, ip: Ipv4Addr, ttl: i32) -> Result<()> {
+ let json_body =
+ json!(
+ {
+ "rrset_values": [ format!("{}", ip) ],
+ "rrset_ttl": ttl
+ }
+ );
- let json: Value = serde_json::from_str(&content).unwrap();
- let prout = json["rrset_values"][0].as_str().unwrap();
- println!("IP: {}", prout);
+ let json_value = request_livedns_gandi(api_key, &format!("domains/{}/records/{}/A", fqdn, name), Method::Put(json_body.to_string()))?;
- println!("Content:\n{}", serde_json::to_string_pretty(&json).unwrap());
- } else {
- println!("Request unsuccessful:\n{:#?}", resp);
- },
- Err(error) =>
- println!("Error during request: {:?}", error)
- }
- */
-}
+ println!("Update response: {}", json_value);
-fn update_record_ip() {
+ Ok(())
}
projects / gandi_dns_update.git / blobdiff