feat: initial auth service support

modules/auth/handlers/handlers.go

@@ -0,0 +1,108 @@
+package handlers
+
+import (
+	"context"
+	"fmt"
+	auth "nyanimedb/auth"
+	sqlc "nyanimedb/sql"
+	"strconv"
+	"time"
+
+	"github.com/golang-jwt/jwt/v5"
+)
+
+var secretKey = []byte("my_secret_key")
+
+func generateToken(userID string) (string, error) {
+	claims := jwt.MapClaims{
+		"user_id": userID,
+		"exp":     time.Now().Add(time.Hour * 24).Unix(),
+	}
+
+	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
+	return token.SignedString(secretKey)
+}
+
+var UserDb = make(map[string]string) //TEMP
+
+type Server struct {
+	db *sqlc.Queries
+}
+
+func NewServer(db *sqlc.Queries) Server {
+	return Server{db: db}
+}
+
+func parseInt64(s string) (int32, error) {
+	i, err := strconv.ParseInt(s, 10, 64)
+	return int32(i), err
+}
+
+func (s Server) PostAuthSignIn(ctx context.Context, req auth.PostAuthSignInRequestObject) (auth.PostAuthSignInResponseObject, error) {
+	err := ""
+	success := true
+	t, _ := generateToken(req.Body.Nickname)
+
+	UserDb[req.Body.Nickname] = req.Body.Pass
+
+	return auth.PostAuthSignIn200JSONResponse{
+		Error:   &err,
+		Success: &success,
+		UserId:  &req.Body.Nickname,
+		Token:   &t,
+	}, nil
+}
+
+func (s Server) PostAuthSignUp(ctx context.Context, req auth.PostAuthSignUpRequestObject) (auth.PostAuthSignUpResponseObject, error) {
+	err := ""
+	success := true
+	UserDb[req.Body.Nickname] = req.Body.Pass
+
+	return auth.PostAuthSignUp200JSONResponse{
+		Error:   &err,
+		Success: &success,
+		UserId:  &req.Body.Nickname,
+	}, nil
+}
+
+func (s Server) PostAuthVerifyToken(ctx context.Context, req auth.PostAuthVerifyTokenRequestObject) (auth.PostAuthVerifyTokenResponseObject, error) {
+	valid := false
+	var userID *string
+	var errStr *string
+
+	token, err := jwt.Parse(req.Body.Token, func(t *jwt.Token) (interface{}, error) {
+		if _, ok := t.Method.(*jwt.SigningMethodHMAC); !ok {
+			return nil, fmt.Errorf("unexpected signing method")
+		}
+		return secretKey, nil
+	})
+
+	if err != nil {
+		e := err.Error()
+		errStr = &e
+		return auth.PostAuthVerifyToken200JSONResponse{
+			Valid:  &valid,
+			UserId: userID,
+			Error:  errStr,
+		}, nil
+	}
+
+	if claims, ok := token.Claims.(jwt.MapClaims); ok && token.Valid {
+		if uid, ok := claims["user_id"].(string); ok {
+			valid = true
+			userID = &uid
+		} else {
+			e := "user_id not found in token"
+			errStr = &e
+		}
+	} else {
+		e := "invalid token claims"
+		errStr = &e
+	}
+
+	return auth.PostAuthVerifyToken200JSONResponse{
+		Valid:  &valid,
+		UserId: userID,
+		Error:  errStr,
+	}, nil
+}