Cargo.lock

@@ -118,7 +118,6 @@ version = "1.1.1-rc.2"
 dependencies = [
  "chrono",
  "confy",
- "dotenv",
  "ipnet",
  "log",
  "reqwest",
@@ -178,12 +177,6 @@ dependencies = [
  "winapi",
 ]
 
-[[package]]
-name = "dotenv"
-version = "0.15.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77c90badedccf4105eca100756a0b1289e191f6fcbdadd3cee1d2f614f97da8f"
-
 [[package]]
 name = "encoding_rs"
 version = "0.8.33"

Cargo.toml

@@ -20,6 +20,5 @@ strum_macros = "^0.24.3"
 log = "^0.4.20"
 systemd-journal-logger = "^2.1.1"
 confy = "^0.5.1"
-dotenv = "^0.15.0"
 ipnet = "^2.9.0"
 url = "2.5.0"

src/cloudflare.rs

@@ -1,5 +1,4 @@
 use std::collections::HashMap;
-use std::env;
 use std::env::VarError;
 use std::error::Error;
 use std::net::{Ipv4Addr, Ipv6Addr};
@@ -11,7 +10,7 @@ use serde_derive::{Deserialize, Serialize};
 use strum_macros::{Display, IntoStaticStr};
 use systemd_journal_logger::connected_to_journal;
 use url::ParseError;
-use crate::config::{ZoneConfig, ZoneEntry};
+use crate::config::{AppConfig, ZoneConfig, ZoneEntry};
 
 const API_BASE: &str = "https://api.cloudflare.com/client/v4";
 
@@ -34,8 +33,8 @@ pub(crate) struct CloudflareZone {
 }
 
 impl CloudflareZone {
-    pub(crate) fn new(zone: &ZoneConfig) -> Result<Self, VarError> {
+    pub(crate) fn new(zone: &ZoneConfig, config: &AppConfig) -> Result<Self, VarError> {
-        let key = env::var("CF_API_TOKEN")?;
+        let key = config.cloudflare_api_token.clone();
         Ok(Self {
             name: zone.name.clone(),
             email: zone.email.clone(),

src/config.rs

@@ -140,3 +140,47 @@ impl Default for ZoneConfig {
     }
 }
 
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq)]
+pub(crate) struct AppConfig {
+    #[serde(alias="cf_api_token")]
+    pub(crate) cloudflare_api_token: String,
+    pub(crate) check_interval_seconds: Option<u16>,
+    pub(crate) uptime_url: Option<String>,
+}
+
+impl AppConfig {
+    pub(crate) fn load() -> Result<Self, Box<dyn Error>> {
+        let cfg: Self = match confy::load(env!("CARGO_PKG_NAME"),"config") {
+            Ok(data) => data,
+            Err(e) => {
+                match connected_to_journal() {
+                    true => error!("[ERROR] {e}"),
+                    false => eprintln!("[ERROR] {e}")
+                }
+                return Err(Box::new(e));
+            }
+        };
+
+        if cfg.cloudflare_api_token.is_empty() {
+            let err_msg = "Cloudflare api token not specified. The app cannot work without this";
+            match connected_to_journal() {
+                true => error!("[ERROR] {err_msg}"),
+                false => eprintln!("[ERROR] {err_msg}")
+            }
+            panic!("{err_msg}");
+        }
+
+        Ok(cfg)
+    }
+}
+
+impl Default for AppConfig {
+    fn default() -> Self {
+        Self {
+            cloudflare_api_token: "".to_owned(),
+            check_interval_seconds: None,
+            uptime_url: None
+        }
+    }
+}
+

src/main.rs

@@ -1,16 +1,15 @@
 /*use cloudflare_old::{Instance, CloudflareDnsType};*/
 use reqwest::blocking::get;
-use std::{env, thread::{sleep}};
+use std::{thread::{sleep}};
 use std::error::Error;
 use std::net::{Ipv4Addr, Ipv6Addr};
 use std::str::FromStr;
 use chrono::{Utc, Duration};
-use dotenv::dotenv;
 use log::{info, warn, error, LevelFilter};
 use reqwest::StatusCode;
 use systemd_journal_logger::{connected_to_journal, JournalLog};
 use crate::cloudflare::{CloudflareZone, DnsRecordType};
-use crate::config::{InterfaceConfig, ZoneConfig, ZoneEntry};
+use crate::config::{AppConfig, InterfaceConfig, ZoneConfig, ZoneEntry};
 
 mod config;
 mod cloudflare;
@@ -233,10 +232,10 @@ fn compare_zones(old_zone: &ZoneConfig, new_zone: &ZoneConfig) -> Vec<String> {
 }
 
 fn main() {
-    dotenv().ok();
     JournalLog::new().expect("Systemd-Logger crate error").install().expect("Systemd-Logger crate error");
     log::set_max_level(LevelFilter::Info);
 
+    let mut config = AppConfig::load().unwrap();
     let mut ifaces = InterfaceConfig::load().unwrap();
     let mut zone_cfgs = ZoneConfig::load().unwrap();
 
@@ -248,32 +247,22 @@ fn main() {
         Err(e) => panic!("{}", e)
     };
 
-    let reload_interval = match env::var("CHECK_INTERVAL_SECONDS") {
+    let reload_interval = config.check_interval_seconds.unwrap_or_else(|| {
-        Ok(interval_string) => i64::from_str(&interval_string).unwrap_or_else(|e| {
+        let warn_msg = "Reload interval option not set, defaulting to 60";
-            let warn_msg = format!("Expected integer number, got '{interval_string}'. Defaulting to 60");
-            match connected_to_journal() {
-                true => warn!("[WARN] {warn_msg}"),
-                false => println!("[WARN] {warn_msg}"),
-            };
-            60
-        }),
-        Err(_) => {
-            let warn_msg = "Reload interval env not set, defaulting to 60";
         match connected_to_journal() {
             true => warn!("[WARN] {warn_msg}"),
             false => println!("[WARN] {warn_msg}"),
         }
         60
-        },
+    }) as i64;
-    };
 
     loop {
         now = Utc::now();
         if now >= start + Duration::seconds(reload_interval) {
             start = now;
 
-            if let Ok(uptime_url) = env::var("UPTIME_URL") {
+            if let Some(uptime_url) = &config.uptime_url {
-                get(uptime_url);
+                let _ = get(uptime_url);
             }
 
             match InterfaceConfig::load() {
@@ -353,10 +342,9 @@ fn main() {
 
                         ifaces = new_cfg
                     }
-
                 },
                 Err(e) => {
-                    let err_msg = format!("Unable to load ínterfaces.toml with error: {}", e);
+                    let err_msg = format!("Unable to load ínterfaces.toml with error: {e}");
                     match connected_to_journal() {
                         true => error!("[ERROR] {err_msg}"),
                         false => eprintln!("[ERROR] {err_msg}"),
@@ -496,7 +484,72 @@ fn main() {
                     }
                 }
                 Err(e) => {
-                    let err_msg = format!("Unable to load from zones.d with error: {}", e);
+                    let err_msg = format!("Unable to load from zones.d with error: {e}");
+                    match connected_to_journal() {
+                        true => error!("[ERROR] {err_msg}"),
+                        false => eprintln!("[ERROR] {err_msg}"),
+                    }
+                }
+            }
+
+            match AppConfig::load() {
+                Ok(new_cfg) => {
+                    if config != new_cfg {
+                        if config.cloudflare_api_token != new_cfg.cloudflare_api_token {
+                            let info_msg = "API token in config.toml changed";
+                            match connected_to_journal() {
+                                true => info!("[INFO] {info_msg}"),
+                                false => println!("[INFO] {info_msg}"),
+                            }
+                        }
+
+                        if config.check_interval_seconds != new_cfg.check_interval_seconds {
+                            let info_msg = match config.check_interval_seconds {
+                                Some(old_interval) => {
+                                    match new_cfg.check_interval_seconds {
+                                        Some(new_interval) => format!("Check interval in config.toml changed from {old_interval}s to {new_interval}s"),
+                                        None => format!("Check interval in config.toml changed from {old_interval}s to 60s"),
+                                    }
+                                },
+                                None => {
+                                    match new_cfg.check_interval_seconds {
+                                        Some(new_interval) => format!("Check interval in config.toml changed from 60s to {new_interval}s"),
+                                        None => "This is a unicorn error, congratulations.".to_owned(),
+                                    }
+                                }
+                            };
+                            match connected_to_journal() {
+                                true => info!("[INFO] {info_msg}"),
+                                false => println!("[INFO] {info_msg}"),
+                            }
+                        }
+
+                        if config.uptime_url != new_cfg.uptime_url {
+                            let info_msg = match &config.uptime_url {
+                                Some(old_url) => {
+                                    match &new_cfg.uptime_url {
+                                        Some(new_url) => format!("Uptime URL in config.toml changed from '{old_url}' to '{new_url}'"),
+                                        None => "Uptime URL in config.toml was removed".to_owned(),
+                                    }
+                                },
+                                None => {
+                                    match &new_cfg.uptime_url {
+                                        Some(new_url) => format!("Uptime URL '{new_url}' was added to config.toml"),
+                                        None => "This is a unicorn error, congratulations.".to_owned(),
+                                    }
+                                }
+                            };
+                            match connected_to_journal() {
+                                true => info!("[INFO] {info_msg}"),
+                                false => println!("[INFO] {info_msg}"),
+                            }
+                        }
+
+                        config = new_cfg
+                    }
+                }
+                Err(e) => {
+                    let err_msg = format!("Unable to load config.toml with error: {e}");
                     match connected_to_journal() {
                         true => error!("[ERROR] {err_msg}"),
                         false => eprintln!("[ERROR] {err_msg}"),
@@ -506,7 +559,7 @@ fn main() {
 
             ips.update();
             for zone in &zone_cfgs {
-                let cf_zone = match CloudflareZone::new(zone) {
+                let cf_zone = match CloudflareZone::new(zone, &config) {
                     Ok(data) => data,
                     Err(e) => {
                         let err_msg = format!("Cloudflare Token likely not set. Error: {}", e);