make following redirects a config option

src/config.rs

@@ -20,6 +20,8 @@ pub struct Config {
 pub struct ConfigHttp {
     #[serde(rename = "5xx_status_code_down")]
     pub fivexx_status_code_down: bool,
+    pub follow_redirects: bool,
+    pub max_follow_redirects: Option<u16>,
 }
 
 impl Config {
@@ -45,6 +47,10 @@ pub async fn init_config(path: String) -> anyhow::Result<()> {
     if config.password.len() != 256 / 4 || config.password.chars().any(|c| !c.is_ascii_hexdigit()) {
         bail!("Password is not a valid SHA256")
     }
+
+    if config.http.follow_redirects && config.http.max_follow_redirects.is_none() {
+        bail!("max_follow_redirects must be set if follow_redirects is enabled");
+    }
 
     CONFIG.set(Arc::new(Mutex::new(config))).unwrap();
 

src/monitor/http.rs

@@ -6,7 +6,7 @@ use std::{
 
 use adler32::adler32;
 use axum::http::{HeaderName, HeaderValue};
-use reqwest::StatusCode;
+use reqwest::{redirect::Policy, StatusCode};
 use serde::{Deserialize, Serialize};
 
 use crate::config::CONFIG;
@@ -168,8 +168,16 @@ pub async fn http_service(
     request_data: &HttpRequest,
 ) -> MonitorResult {
     let start_time = Instant::now();
-
-    let client = reqwest::Client::new();
+    let config = CONFIG.get().unwrap().lock().await;
+    let client = reqwest::ClientBuilder::new()
+        .redirect(if config.http.follow_redirects {
+            let limit = config.http.max_follow_redirects;
+            Policy::limited(limit.unwrap().into())
+        } else {
+            Policy::none()
+        })
+        .build()
+        .unwrap();
 
     let res = client
         .request(request_data.method.to_reqwest(), url)
@@ -189,14 +197,7 @@ pub async fn http_service(
         }
     };
 
-    if CONFIG
-        .get()
-        .unwrap()
-        .lock()
-        .await
-        .http
-        .fivexx_status_code_down
-        && (500..599).contains(&res.status().as_u16())
+    if config.http.fivexx_status_code_down && (500..599).contains(&res.status().as_u16())
     {
         return MonitorResult::Down(format!("Server replied with status {}", res.status()));
     }

stbmon.toml

@@ -4,4 +4,6 @@ password_sha256 = "ba01338ba5fa0c1584a6d41f93fe550b1d715a8de2da10d6c673131a85658
 allow_guest = true
 
 [http]
-5xx_status_code_down = true
+5xx_status_code_down = true
+follow_redirects = false
+#max_follow_redirects = 10