Implement Google OAuth2

handler/auth/google/google.go

@@ -0,0 +1,20 @@
+package googleOauthHandler
+
+import (
+	"fmt"
+	googleOauthCallbackHandler "github.com/fossyy/filekeeper/handler/auth/google/callback"
+	"github.com/fossyy/filekeeper/utils"
+	"net/http"
+	"time"
+)
+
+func GET(w http.ResponseWriter, r *http.Request) {
+	token, err := utils.GenerateCSRFToken()
+	googleOauthCallbackHandler.CsrfTokens[token] = &googleOauthCallbackHandler.CsrfToken{Token: token, CreateTime: time.Now()}
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	http.Redirect(w, r, fmt.Sprintf("https://accounts.google.com/o/oauth2/auth?scope=email profile&response_type=code&access_type=offline&state=%s&redirect_uri=%s/auth/google/callback&client_id=%s", token, "http://localhost:8000", "324904877864-vrbqof7nea1l89316d26sk0s76105hc4.apps.googleusercontent.com"), http.StatusFound)
+	return
+}