feat: [torrust#640] Tracker Chekcer: announce check

Author: josecelano

src/console/clients/checker/service.rs

@@ -1,13 +1,18 @@
 use std::net::SocketAddr;
+use std::str::FromStr;
 use std::sync::Arc;
 use std::time::Duration;
 
 use colored::Colorize;
-use reqwest::{Client, Url};
+use reqwest::{Client as HttpClient, Url};
 
 use super::config::Configuration;
 use super::console::Console;
 use crate::console::clients::checker::printer::Printer;
+use crate::shared::bit_torrent::info_hash::InfoHash;
+use crate::shared::bit_torrent::tracker::http::client::requests::announce::QueryBuilder;
+use crate::shared::bit_torrent::tracker::http::client::responses::announce::Announce;
+use crate::shared::bit_torrent::tracker::http::client::Client;
 
 pub struct Service {
     pub(crate) config: Arc<Configuration>,
@@ -19,7 +24,7 @@ pub type CheckResult = Result<(), CheckError>;
 #[derive(Debug)]
 pub enum CheckError {
     UdpError,
-    HttpError,
+    HttpError { url: Url },
     HealthCheckError { url: Url },
 }
 
@@ -30,10 +35,15 @@ impl Service {
     pub async fn run_checks(&self) -> Vec<CheckResult> {
         self.console.println("Running checks for trackers ...");
 
+        let mut check_results = vec![];
+
         self.check_udp_trackers();
-        self.check_http_trackers();
 
-        self.run_health_checks().await
+        self.check_http_trackers(&mut check_results).await;
+
+        self.run_health_checks(&mut check_results).await;
+
+        check_results
     }
 
     fn check_udp_trackers(&self) {
@@ -44,47 +54,67 @@ impl Service {
         }
     }
 
-    fn check_http_trackers(&self) {
+    async fn check_http_trackers(&self, check_results: &mut Vec<CheckResult>) {
         self.console.println("HTTP trackers ...");
 
         for http_tracker in &self.config.http_trackers {
-            self.check_http_tracker(http_tracker);
+            match self.check_http_tracker(http_tracker).await {
+                Ok(()) => check_results.push(Ok(())),
+                Err(err) => check_results.push(Err(err)),
+            }
         }
     }
 
-    async fn run_health_checks(&self) -> Vec<CheckResult> {
+    async fn run_health_checks(&self, check_results: &mut Vec<CheckResult>) {
         self.console.println("Health checks ...");
 
-        let mut check_results = vec![];
-
         for health_check_url in &self.config.health_checks {
             match self.run_health_check(health_check_url.clone()).await {
                 Ok(()) => check_results.push(Ok(())),
                 Err(err) => check_results.push(Err(err)),
             }
         }
-
-        check_results
     }
 
     fn check_udp_tracker(&self, address: &SocketAddr) {
         // todo:
         // - Make announce request
         // - Make scrape request
         self.console
-            .println(&format!("{} - UDP tracker at {:?} is OK (TODO)", "✓".green(), address));
+            .println(&format!("{} - UDP tracker at udp://{:?} is OK (TODO)", "✓".green(), address));
     }
 
-    fn check_http_tracker(&self, url: &Url) {
-        // todo:
-        // - Make announce request
-        // - Make scrape request
-        self.console
-            .println(&format!("{} - HTTP tracker at {} is OK (TODO)", "✓".green(), url));
+    async fn check_http_tracker(&self, url: &Url) -> Result<(), CheckError> {
+        let info_hash_str = "9c38422213e30bff212b30c360d26f9a02136422".to_string(); // # DevSkim: ignore DS173237
+        let info_hash = InfoHash::from_str(&info_hash_str).expect("a valid info-hash is required");
+
+        // Announce request
+
+        let response = Client::new(url.clone())
+            .announce(&QueryBuilder::with_default_values().with_info_hash(&info_hash).query())
+            .await;
+
+        if let Ok(body) = response.bytes().await {
+            if let Ok(_announce_response) = serde_bencode::from_bytes::<Announce>(&body) {
+                self.console.println(&format!("{} - Announce at {} is OK", "✓".green(), url));
+
+                Ok(())
+            } else {
+                self.console.println(&format!("{} - Announce at {} failing", "✗".red(), url));
+                Err(CheckError::HttpError { url: url.clone() })
+            }
+        } else {
+            self.console.println(&format!("{} - Announce at {} failing", "✗".red(), url));
+            Err(CheckError::HttpError { url: url.clone() })
+        }
+
+        // Scrape request
+
+        // todo
     }
 
     async fn run_health_check(&self, url: Url) -> Result<(), CheckError> {
-        let client = Client::builder().timeout(Duration::from_secs(5)).build().unwrap();
+        let client = HttpClient::builder().timeout(Duration::from_secs(5)).build().unwrap();
 
         match client.get(url.clone()).send().await {
             Ok(response) => {