chore: 初始化仓库，排除二进制文件和覆盖率文件

internal/service/captcha_service.go

@@ -0,0 +1,165 @@
+package service
+
+import (
+	"carrotskin/pkg/config"
+	"carrotskin/pkg/redis"
+	"context"
+	"errors"
+	"fmt"
+	"log"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/wenlng/go-captcha-assets/resources/imagesv2"
+	"github.com/wenlng/go-captcha-assets/resources/tiles"
+	"github.com/wenlng/go-captcha/v2/slide"
+)
+
+var (
+	slideTileCapt slide.Captcha
+	cfg           *config.Config
+)
+
+// 常量定义（业务相关配置，与Redis连接配置分离）
+const (
+	redisKeyPrefix = "captcha:" // Redis键前缀（便于区分业务）
+	paddingValue   = 3          // 验证允许的误差像素（±3px）
+)
+
+// Init 验证码图初始化
+func init() {
+	cfg, _ = config.Load()
+	// 从默认仓库中获取主图
+	builder := slide.NewBuilder()
+	bgImage, err := imagesv2.GetImages()
+	if err != nil {
+		log.Fatalln(err)
+	}
+	// 滑块形状获取
+	graphs := getSlideTileGraphArr()
+
+	builder.SetResources(
+		slide.WithGraphImages(graphs),
+		slide.WithBackgrounds(bgImage),
+	)
+	slideTileCapt = builder.Make()
+	if slideTileCapt == nil {
+		log.Fatalln("验证码实例初始化失败")
+	}
+}
+
+// getSlideTileGraphArr 滑块选择
+func getSlideTileGraphArr() []*slide.GraphImage {
+	graphs, err := tiles.GetTiles()
+	if err != nil {
+		log.Fatalln(err)
+	}
+	var newGraphs = make([]*slide.GraphImage, 0, len(graphs))
+	for i := 0; i < len(graphs); i++ {
+		graph := graphs[i]
+		newGraphs = append(newGraphs, &slide.GraphImage{
+			OverlayImage: graph.OverlayImage,
+			MaskImage:    graph.MaskImage,
+			ShadowImage:  graph.ShadowImage,
+		})
+	}
+	return newGraphs
+}
+
+// RedisData 存储到Redis的验证信息（仅包含校验必需字段）
+type RedisData struct {
+	Tx int `json:"tx"` // 滑块目标X坐标
+	Ty int `json:"ty"` // 滑块目标Y坐标
+}
+
+// GenerateCaptchaData 提取生成验证码的相关信息
+func GenerateCaptchaData(ctx context.Context, redisClient *redis.Client) (string, string, string, int, error) {
+	// 生成uuid作为验证码进程唯一标识
+	captchaID := uuid.NewString()
+	if captchaID == "" {
+		return "", "", "", 0, errors.New("生成验证码唯一标识失败")
+	}
+
+	captData, err := slideTileCapt.Generate()
+	if err != nil {
+		return "", "", "", 0, fmt.Errorf("生成验证码失败: %w", err)
+	}
+	blockData := captData.GetData()
+	if blockData == nil {
+		return "", "", "", 0, errors.New("获取验证码数据失败")
+	}
+	block, _ := json.Marshal(blockData)
+	var blockMap map[string]interface{}
+
+	if err := json.Unmarshal(block, &blockMap); err != nil {
+		return "", "", "", 0, fmt.Errorf("反序列化为map失败: %w", err)
+	}
+	// 提取x和y并转换为int类型
+	tx, ok := blockMap["x"].(float64)
+	if !ok {
+		return "", "", "", 0, errors.New("无法将x转换为float64")
+	}
+	var x = int(tx)
+	ty, ok := blockMap["y"].(float64)
+	if !ok {
+		return "", "", "", 0, errors.New("无法将y转换为float64")
+	}
+	var y = int(ty)
+	var mBase64, tBase64 string
+	mBase64, err = captData.GetMasterImage().ToBase64()
+	if err != nil {
+		return "", "", "", 0, fmt.Errorf("主图转换为base64失败: %w", err)
+	}
+	tBase64, err = captData.GetTileImage().ToBase64()
+	if err != nil {
+		return "", "", "", 0, fmt.Errorf("滑块图转换为base64失败: %w", err)
+	}
+	redisData := RedisData{
+		Tx: x,
+		Ty: y,
+	}
+	redisDataJSON, _ := json.Marshal(redisData)
+	redisKey := redisKeyPrefix + captchaID
+	expireTime := 300 * time.Second
+
+	// 使用注入的Redis客户端
+	if err := redisClient.Set(
+		ctx,
+		redisKey,
+		redisDataJSON,
+		expireTime,
+	); err != nil {
+		return "", "", "", 0, fmt.Errorf("存储验证码到Redis失败: %w", err)
+	}
+	return mBase64, tBase64, captchaID, y - 10, nil
+}
+
+// VerifyCaptchaData 验证用户验证码
+func VerifyCaptchaData(ctx context.Context, redisClient *redis.Client, dx int, id string) (bool, error) {
+	redisKey := redisKeyPrefix + id
+
+	// 从Redis获取验证信息，使用注入的客户端
+	dataJSON, err := redisClient.Get(ctx, redisKey)
+	if err != nil {
+		if redisClient.Nil(err) { // 使用封装客户端的Nil错误
+			return false, errors.New("验证码已过期或无效")
+		}
+		return false, fmt.Errorf("Redis查询失败: %w", err)
+	}
+	var redisData RedisData
+	if err := json.Unmarshal([]byte(dataJSON), &redisData); err != nil {
+		return false, fmt.Errorf("解析Redis数据失败: %w", err)
+	}
+	tx := redisData.Tx
+	ty := redisData.Ty
+	ok := slide.Validate(dx, ty, tx, ty, paddingValue)
+
+	// 验证后立即删除Redis记录（防止重复使用）
+	if ok {
+		if err := redisClient.Del(ctx, redisKey); err != nil {
+			// 记录警告但不影响验证结果
+			log.Printf("删除验证码Redis记录失败: %v", err)
+		}
+	}
+	return ok, nil
+}