Split in modules

[gandi_dns_update.git] / src / main.rs

diff --git a/src/main.rs b/src/main.rs
index 67c251a..79b2262 100644 (file)
--- a/src/main.rs
+++ b/src/main.rs
@@ -11,54 +11,14 @@
 
 #![cfg_attr(debug_assertions, allow(unused_variables, unused_imports, dead_code))]
 
-use std::{ fs::File, net::{ IpAddr, Ipv4Addr }, thread, time };
-use ron::{ de::from_reader, ser::to_writer };
-use serde::{ Deserialize, Serialize };
+use std::{ net::{ IpAddr, Ipv4Addr }, thread, time };
 use serde_json::{ Value, json };
 
-// A generic result of type 'T'.
-type Result<T> = std::result::Result<T, Box<dyn std::error::Error>>;
+mod error;
+mod config;
 
-#[derive(Debug)]
-struct Error {
-    message: String
-}
-
-impl std::fmt::Display for Error {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "Error: {}", &self.message)
-    }
-}
-
-impl std::error::Error for Error { }
-
-#[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(120), api_key: String::from(""), fqdn: String::from(""), domains: Vec::new(), ttl: 300 }
-    }
-
-    fn read(file_path: &str) -> Result<Config> {
-        match File::open(file_path) {
-            Ok(file) => from_reader(file).map_err(|e| e.into()),
-            // The file doesn't exit -> create it with default values.
-            Err(_) => {
-                let file = File::create(file_path)?;
-                let default_config = Config::default();
-                to_writer(file, &default_config)?;
-                Ok(default_config)
-            }
-        }
-    }
-}
+use crate::error::{ Result, Error };
+use crate::config::Config;
 
 const FILE_CONF: &str = "config.ron";
 
@@ -103,7 +63,6 @@ fn check_and_update_dns(api_key: &str, fqdn: &str, domains: &Vec<String>, ttl: i
 }
 
 fn get_real_ip() -> Result<Ipv4Addr> {
-
     let url = "https://api.ipify.org";
     let client = reqwest::blocking::Client::new();
 
@@ -111,7 +70,7 @@ fn get_real_ip() -> Result<Ipv4Addr> {
         Ok(resp) =>
             if resp.status().is_success() {
                 let content = resp.text().unwrap();
-                match content.parse::<IpAddr>() {
+                match content.parse() {
                     Ok(IpAddr::V4(ip_v4)) => Ok(ip_v4),
                     _ => Err(Box::new(Error { message: String::from("Can't parse IPv4 from ipify") }))
                 }
@@ -125,6 +84,33 @@ fn get_real_ip() -> Result<Ipv4Addr> {
     }
 }
 
+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)?;
+
+    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) }))
+    }
+}
+
+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 = request_livedns_gandi(api_key, &format!("domains/{}/records/{}/A", fqdn, name), Method::Put(json_body.to_string()))?;
+
+    println!("Update response: {}", json_value);
+
+    Ok(())
+}
+
 enum Method {
     Put(String),
     Get
@@ -152,30 +138,3 @@ fn request_livedns_gandi(api_key: &str, url_fragment: &str, method: Method) -> R
             Err(Box::new(Error { message: format!("Error during request: {:?}", error) }))
     }
 }
-
-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)?;
-
-    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) }))
-    }
-}
-
-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 = request_livedns_gandi(api_key, &format!("domains/{}/records/{}/A", fqdn, name), Method::Put(json_body.to_string()))?;
-
-    println!("Update response: {}", json_value);
-
-    Ok(())
-}