Major improvements: multi-stage Docker, security hardening, host metrics, tests

- Multi-stage Docker build: Dockerfile compiles frontend (Node.js) and backend (Gradle) inside Docker; no local Java/Node.js required - Security hardening: replaced full host root mount with specific directory mounts (/proc, /sys, /etc, /var, /home, /opt, /tmp, /srv, /usr) - Host metrics consistency: LinuxMemoryService and CpuDetailsService now read from /host/proc instead of container OSHI - Concurrency: replaced synchronized with AtomicReference in 3 services - Global error handling: added @RestControllerAdvice for JSON error responses - Unit tests: added 32 tests for /proc parsers, CPU usage, process uptime - Docker security: non-root user, read-only FS, no-new-privileges, healthcheck - Debug logging: added log.debug() in silent catch blocks - Documentation: updated README, INSTALLATION, DEVELOPMENT, CONFIGURATION, ARCHITECTURE, CHANGELOG Co-authored-by: Junie <junie@jetbrains.com>
2026-10-28 23:18:01 +01:00
parent 539175654c
commit 597d8f380a
23 changed files with 1122 additions and 137 deletions
@@ -0,0 +1,40 @@
+package com.htopweb.system;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+import java.util.Map;
+
+@RestControllerAdvice
+public class GlobalExceptionHandler {
+
+    private static final Logger log = LoggerFactory.getLogger(GlobalExceptionHandler.class);
+
+    @ExceptionHandler(Exception.class)
+    public ResponseEntity<Map<String, Object>> handleException(Exception e) {
+        log.error("Unexpected error: {}", e.getMessage(), e);
+
+        return ResponseEntity
+                .status(HttpStatus.INTERNAL_SERVER_ERROR)
+                .body(Map.of(
+                        "error", "Internal server error",
+                        "message", e.getMessage()
+                ));
+    }
+
+    @ExceptionHandler(RuntimeException.class)
+    public ResponseEntity<Map<String, Object>> handleRuntimeException(RuntimeException e) {
+        log.error("Runtime error: {}", e.getMessage(), e);
+
+        return ResponseEntity
+                .status(HttpStatus.INTERNAL_SERVER_ERROR)
+                .body(Map.of(
+                        "error", "Internal server error",
+                        "message", e.getMessage()
+                ));
+    }
+}