feat: add simple Oauth2 logic for github

backend/internal/handlers/auth_handlers.go

@@ -1,17 +1,30 @@
 package handlers
 
 import (
-	"gitea.d3m0k1d.ru/d3m0k1d/d3m0k1d.ru/backend/internal/repositories"
+	"os"
 
+	"gitea.d3m0k1d.ru/d3m0k1d/d3m0k1d.ru/backend/internal/logger"
+	"gitea.d3m0k1d.ru/d3m0k1d/d3m0k1d.ru/backend/internal/repositories"
 	"github.com/gin-gonic/gin"
+	"golang.org/x/oauth2"
+	"golang.org/x/oauth2/endpoints"
 )
 
 type AuthHandlers struct {
-	repo repositories.AuthRepository
+	repo   repositories.AuthRepository
+	logger *logger.Logger
+}
+
+var configGithub = &oauth2.Config{
+	ClientID:     os.Getenv("GITHUB_CLIENT_ID"),
+	ClientSecret: os.Getenv("GITHUB_CLIENT_SECRET"),
+	RedirectURL:  "https://d3m0k1d.ru/",
+	Scopes:       []string{"user"},
+	Endpoint:     endpoints.GitHub,
 }
 
 func NewAuthHandlers(repo repositories.AuthRepository) *AuthHandlers {
-	return &AuthHandlers{repo: repo}
+	return &AuthHandlers{repo: repo, logger: logger.New(false)}
 }
 
 // Callback godoc
@@ -21,7 +34,15 @@ func NewAuthHandlers(repo repositories.AuthRepository) *AuthHandlers {
 // @Accept  json
 // @Produce  json
 // @Success 200 {object} map[string]string
-// @Router /callback [get]
-func (h *AuthHandlers) Callback(c *gin.Context) {
+// @Router /callback/github [get]
+func (h *AuthHandlers) CallbackGithub(c *gin.Context) {
+	h.logger.Info("CallbackGithub called")
 
+	token, err := configGithub.Exchange(c.Request.Context(), c.Query("code"))
+	if err != nil {
+		h.logger.Error("error request: " + err.Error())
+		c.Status(500)
+	}
+	h.logger.Info("200 OK GET /callback/github")
+	c.JSON(200, gin.H{"token": token})
 }