Improve static file handling and logging

- Add full filename in unsupported format error messages
- Add proper handling for system files (robots.txt, favicon.ico, sitemap.xml, humans.txt)
- Improve logging for static image server requests
- Add detailed logging for thumbnail vs image requests
- robots.txt now returns proper response for static image server

💋 Better static file server: proper system file handling and detailed logging.

src/handlers/common.rs

@@ -233,3 +233,38 @@ pub fn create_error_response(status: actix_web::http::StatusCode, message: &str)
 /// Константы для безопасности
 pub const MAX_TOKEN_LENGTH: usize = 2048;
 pub const MIN_TOKEN_LENGTH: usize = 100;
+
+/// Проверяет, является ли файл системным файлом и возвращает соответствующий ответ
+pub fn handle_system_file(filename: &str) -> Option<HttpResponse> {
+    match filename.to_lowercase().as_str() {
+        "robots.txt" => {
+            info!("Serving robots.txt for static image server");
+            Some(HttpResponse::Ok()
+                .content_type("text/plain")
+                .insert_header(("access-control-allow-origin", "*"))
+                .body("User-agent: *\nDisallow: /\n"))
+        }
+        "favicon.ico" => {
+            info!("Serving favicon.ico (empty)");
+            Some(HttpResponse::Ok()
+                .content_type("image/x-icon")
+                .insert_header(("access-control-allow-origin", "*"))
+                .body(""))
+        }
+        "sitemap.xml" => {
+            info!("Serving sitemap.xml (empty)");
+            Some(HttpResponse::Ok()
+                .content_type("application/xml")
+                .insert_header(("access-control-allow-origin", "*"))
+                .body("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<urlset xmlns=\"http://www.sitemaps.org/schemas/sitemap/0.9\">\n</urlset>"))
+        }
+        "humans.txt" => {
+            info!("Serving humans.txt");
+            Some(HttpResponse::Ok()
+                .content_type("text/plain")
+                .insert_header(("access-control-allow-origin", "*"))
+                .body("# Static Image Server\n# Powered by Quoter\n"))
+        }
+        _ => None
+    }
+}

src/handlers/proxy.rs

@@ -3,7 +3,7 @@ use actix_web::{HttpRequest, HttpResponse, Result, error::ErrorInternalServerErr
 use log::{error, info, warn};
 
 use super::common::{
-    create_file_response_with_analytics, create_vercel_compatible_response, is_vercel_request,
+    create_file_response_with_analytics, create_vercel_compatible_response, is_vercel_request, handle_system_file,
 };
 use crate::app_state::AppState;
 use crate::handlers::serve_file::serve_file;
@@ -24,7 +24,12 @@ pub async fn proxy_handler(
     state: web::Data<AppState>,
 ) -> Result<HttpResponse, actix_web::Error> {
     let start_time = std::time::Instant::now();
-    info!("GET {} [START]", requested_res);
+    info!("GET {} [START] - Static image server request", requested_res);
+
+    // Проверяем системные файлы (robots.txt, favicon.ico, etc.)
+    if let Some(response) = handle_system_file(&requested_res) {
+        return Ok(response);
+    }
 
     let normalized_path = if requested_res.ends_with("/webp") {
         info!("Converting to WebP format: {}", requested_res);
@@ -38,10 +43,17 @@ pub async fn proxy_handler(
     let ext = extension.as_str().to_lowercase();
     let filekey = format!("{}.{}", base_filename, &ext);
 
-    info!(
-        "Parsed request - base: {}, width: {}, ext: {}",
-        base_filename, requested_width, ext
-    );
+    if requested_width > 0 {
+        info!(
+            "Parsed thumbnail request - base: {}, width: {}, ext: {} (full path: {})",
+            base_filename, requested_width, ext, requested_res
+        );
+    } else {
+        info!(
+            "Parsed image request - base: {}, ext: {} (full path: {})",
+            base_filename, ext, requested_res
+        );
+    }
 
     // Caching handled by Vercel Edge - focus on fast file serving
     let content_type = match get_mime_type(&ext) {
@@ -57,7 +69,7 @@ pub async fn proxy_handler(
                 }
             }
             _ => {
-                error!("Unsupported file format for: {}", base_filename);
+                error!("Unsupported file format for: {} (full path: {})", base_filename, requested_res);
                 return Err(ErrorInternalServerError("Unsupported file format"));
             }
         },