Initial commit: SSH Manager (backend + frontend)

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/src/main/java/com/sshmanager/controller/ConnectionController.java

@@ -0,0 +1,70 @@
+package com.sshmanager.controller;
+
+import com.sshmanager.dto.ConnectionCreateRequest;
+import com.sshmanager.dto.ConnectionDto;
+import com.sshmanager.entity.User;
+import com.sshmanager.repository.UserRepository;
+import com.sshmanager.service.ConnectionService;
+import org.springframework.http.ResponseEntity;
+import org.springframework.security.core.Authentication;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+@RestController
+@RequestMapping("/api/connections")
+public class ConnectionController {
+
+    private final ConnectionService connectionService;
+    private final UserRepository userRepository;
+
+    public ConnectionController(ConnectionService connectionService,
+                                UserRepository userRepository) {
+        this.connectionService = connectionService;
+        this.userRepository = userRepository;
+    }
+
+    private Long getCurrentUserId(Authentication auth) {
+        User user = userRepository.findByUsername(auth.getName()).orElseThrow(() -> new IllegalStateException("User not found"));
+        return user.getId();
+    }
+
+    @GetMapping
+    public ResponseEntity<List<ConnectionDto>> list(Authentication authentication) {
+        Long userId = getCurrentUserId(authentication);
+        return ResponseEntity.ok(connectionService.listByUserId(userId));
+    }
+
+    @GetMapping("/{id}")
+    public ResponseEntity<ConnectionDto> get(@PathVariable Long id, Authentication authentication) {
+        Long userId = getCurrentUserId(authentication);
+        return ResponseEntity.ok(connectionService.getById(id, userId));
+    }
+
+    @PostMapping
+    public ResponseEntity<ConnectionDto> create(@RequestBody ConnectionCreateRequest request,
+                                                Authentication authentication) {
+        Long userId = getCurrentUserId(authentication);
+        return ResponseEntity.ok(connectionService.create(request, userId));
+    }
+
+    @PutMapping("/{id}")
+    public ResponseEntity<ConnectionDto> update(@PathVariable Long id,
+                                                @RequestBody ConnectionCreateRequest request,
+                                                Authentication authentication) {
+        Long userId = getCurrentUserId(authentication);
+        return ResponseEntity.ok(connectionService.update(id, request, userId));
+    }
+
+    @DeleteMapping("/{id}")
+    public ResponseEntity<Map<String, String>> delete(@PathVariable Long id,
+                                                      Authentication authentication) {
+        Long userId = getCurrentUserId(authentication);
+        connectionService.delete(id, userId);
+        Map<String, String> result = new HashMap<>();
+        result.put("message", "Deleted");
+        return ResponseEntity.ok(result);
+    }
+}