add server pinger

src/main/java/cc.fascinated/controller/PlayerController.java

@@ -0,0 +1,48 @@
+package cc.fascinated.controller;
+
+import cc.fascinated.common.PlayerUtils;
+import cc.fascinated.model.player.Player;
+import cc.fascinated.model.player.Skin;
+import cc.fascinated.service.PlayerService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.CacheControl;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.concurrent.TimeUnit;
+
+@RestController
+@RequestMapping(value = "/player/")
+public class PlayerController {
+
+    private final CacheControl cacheControl = CacheControl.maxAge(1, TimeUnit.HOURS).cachePublic();
+    private final PlayerService playerManagerService;
+
+    @Autowired
+    public PlayerController(PlayerService playerManagerService) {
+        this.playerManagerService = playerManagerService;
+    }
+
+    @ResponseBody
+    @GetMapping(value = "/{id}", produces = MediaType.APPLICATION_JSON_VALUE)
+    public ResponseEntity<?> getPlayer(@PathVariable String id) {
+        return ResponseEntity.ok()
+                .cacheControl(cacheControl)
+                .body(playerManagerService.getPlayer(id));
+    }
+
+    @GetMapping(value = "/{part}/{id}")
+    public ResponseEntity<?> getPlayerHead(@PathVariable String part,
+                                                @PathVariable String id,
+                                                @RequestParam(required = false, defaultValue = "256") int size) {
+        Player player = playerManagerService.getPlayer(id);
+        Skin.Parts skinPart = Skin.Parts.fromName(part);
+
+        // Return the part image
+        return ResponseEntity.ok()
+                .cacheControl(cacheControl)
+                .contentType(MediaType.IMAGE_PNG)
+                .body(PlayerUtils.getSkinPartBytes(player.getSkin(), skinPart, size));
+    }
+}