From 854d457caf8a32cd25fdab73d703873e1770fe84 Mon Sep 17 00:00:00 2001
From: William Desportes <williamdes@wdes.fr>
Date: Sat, 22 Jun 2024 20:58:35 +0200
Subject: [PATCH] Move to a mutex

---
 snow-scanner/src/main.rs | 51 +++++++++++++++++++++++++++-------------
 1 file changed, 35 insertions(+), 16 deletions(-)

diff --git a/snow-scanner/src/main.rs b/snow-scanner/src/main.rs
index 69494b5..4a427e7 100644
--- a/snow-scanner/src/main.rs
+++ b/snow-scanner/src/main.rs
@@ -9,6 +9,7 @@ use rusqlite::{named_params, Connection, OpenFlags, Result, ToSql};
 use sha2::Sha256;
 use std::fmt;
 use std::str::FromStr;
+use std::sync::Mutex;
 
 use hickory_client::client::SyncClient;
 use hickory_client::rr::Name;
@@ -73,8 +74,12 @@ fn save_scanner(conn: &Connection, scanner: &Scanner) -> Result<(), ()> {
             ":last_checked_at": &scanner.last_checked_at
         },
     ) {
-        Ok(_) => Ok(()),
-        Err(_) => Err(()),
+        Ok(_) => {
+            Ok(())
+        },
+        Err(_) => {
+            Err(())
+        },
     }
 }
 
@@ -118,11 +123,14 @@ static FORM: &str = r#"
 </html>
 "#;
 
-fn handle_report(
-    conn: &Connection,
-    client: SyncClient<TcpClientConnection>,
-    request: &Request,
-) -> Response {
+fn handle_scan(conn: &Mutex<Connection>, request: &Request) -> Response {
+    let data = try_or_400!(post_input!(request, {
+        ips: String,
+    }));
+    rouille::Response::html(data.ips.split('\n').collect::<Vec<&str>>().join("<br>"))
+}
+
+fn handle_report(conn: &Mutex<Connection>, request: &Request) -> Response {
     let data = try_or_400!(post_input!(request, {
         ip: String,
     }));
@@ -132,6 +140,7 @@ fn handle_report(
     println!("Received data: {:?}", data);
     let query_address = data.ip.parse().expect("To parse");
 
+    let client = get_dns_client();
     let ptr_result = get_ptr(query_address, client).unwrap();
 
     match detect_scanner(&ptr_result) {
@@ -146,7 +155,8 @@ fn handle_report(
                 last_seen_at: Utc::now().to_string(),
                 last_checked_at: Utc::now().to_string(),
             };
-            save_scanner(&conn, &scanner).unwrap();
+            let db = conn.lock().unwrap();
+            save_scanner(&db, &scanner).unwrap();
             rouille::Response::html(match scanner_name {
                 Scanners::Binaryedge => format!(
                     "Reported an escaped ninja! <b>{}</a> {:?}.",
@@ -168,8 +178,9 @@ fn handle_report(
     }
 }
 
-fn handle_list_scanners(conn: &Connection, scanner_name: String) -> Response {
-    let mut stmt = conn.prepare("SELECT ip FROM scanners WHERE scanner_name = :scanner_name ORDER BY ip_type, created_at").unwrap();
+fn handle_list_scanners(conn: &Mutex<Connection>, scanner_name: String) -> Response {
+    let db = conn.lock().unwrap();
+    let mut stmt = db.prepare("SELECT ip FROM scanners WHERE scanner_name = :scanner_name ORDER BY ip_type, created_at").unwrap();
     let mut rows = stmt
         .query(named_params! { ":scanner_name": scanner_name })
         .unwrap();
@@ -214,16 +225,23 @@ fn get_connection() -> Connection {
     conn
 }
 
+fn get_dns_client() -> SyncClient<TcpClientConnection> {
+    let server = "1.1.1.1:53".parse().expect("To parse");
+    let dns_conn =
+        TcpClientConnection::with_timeout(server, std::time::Duration::new(5, 0)).unwrap();
+    SyncClient::new(dns_conn)
+}
+
 fn main() -> Result<()> {
     println!("Now listening on localhost:8000");
 
-    let server = "1.1.1.1:53".parse().expect("To parse");
-    let conn = TcpClientConnection::with_timeout(server, std::time::Duration::new(5, 0)).unwrap();
+    let conn = Mutex::new(get_connection());
+    conn.lock()
+        .unwrap()
+        .execute("SELECT 0 WHERE 0;", named_params! {})
+        .expect("Failed to initialize database");
 
     rouille::start_server("localhost:8000", move |request| {
-        let client = SyncClient::new(conn);
-        let conn = get_connection();
-
         router!(request,
             (GET) (/) => {
                 rouille::Response::html(FORM)
@@ -233,7 +251,8 @@ fn main() -> Result<()> {
                 rouille::Response::text("pong")
             },
 
-            (POST) (/report) => {handle_report(&conn, client, &request)},
+            (POST) (/report) => {handle_report(&conn, &request)},
+            (POST) (/scan) => {handle_scan(&conn, &request)},
 
             (POST) (/register) => {
                 let data = try_or_400!(post_input!(request, {