Fix response decompression

controllers/tracker_controller.go

@@ -6,13 +6,14 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"github.com/gin-gonic/gin"
 	"io"
 	"math"
 	"net"
 	"net/http"
 	"sort"
 	"time"
+
+	"github.com/gin-gonic/gin"
 )
 
 // GetScoreByPlayerID GET /score/:player_id
@@ -99,7 +100,7 @@ func getPlayerData(playerName string) (*models.TrackerDataJSON, int) {
 		return nil, 0
 	}
 
-	req.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36")
+	req.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36")
 	req.Header.Set("Accept-Encoding", "gzip, deflate, br")
 
 	res, err := c.Do(req)
@@ -128,8 +129,16 @@ func getPlayerData(playerName string) (*models.TrackerDataJSON, int) {
 		return nil, res.StatusCode
 	}
 
+	encoding := res.Header.Get("Content-Encoding")
+	reader, err := utils.DecompressResponseBody(encoding, res.Body)
+	if err != nil {
+		utils.Logger.Errorf("[SCORE] Failed to decompress response body: %s", err.Error())
+		return nil, 0
+	}
+	defer reader.Close()
+
 	var response models.TrackerDataJSON
-	body, err := io.ReadAll(res.Body)
+	body, err := io.ReadAll(reader)
 	if err != nil {
 		utils.Logger.Errorf("[SCORE] Failed to read response body: %s", err.Error())
 		return nil, 0

utils/misc.go

@@ -3,6 +3,11 @@ package utils
 import (
 	"crypto/rand"
 	"encoding/hex"
+	"io"
+
+	"github.com/andybalholm/brotli"
+	"github.com/klauspost/compress/flate"
+	"github.com/klauspost/compress/gzip"
 )
 
 func GenerateActivationCode() string {
@@ -12,3 +17,16 @@ func GenerateActivationCode() string {
 	}
 	return hex.EncodeToString(bytes)
 }
+
+func DecompressResponseBody(encoding string, body io.Reader) (io.ReadCloser, error) {
+    switch encoding {
+    case "gzip":
+        return gzip.NewReader(body)
+    case "deflate":
+        return flate.NewReader(body), nil
+    case "br":
+        return io.NopCloser(brotli.NewReader(body)), nil
+    default:
+        return io.NopCloser(body), nil
+    }
+}