Add SignInRequire and SignOutRequire middleware

modules/auth/user.go

@@ -0,0 +1,82 @@
+// Copyright 2014 The Gogs Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package auth
+
+import (
+	"github.com/codegangsta/martini"
+	"github.com/martini-contrib/render"
+	"github.com/martini-contrib/sessions"
+
+	"github.com/gogits/gogs/models"
+	"github.com/gogits/gogs/modules/base"
+	"github.com/gogits/gogs/utils/log"
+)
+
+func SignedInId(session sessions.Session) int64 {
+	userId := session.Get("userId")
+	if userId == nil {
+		return 0
+	}
+	if s, ok := userId.(int64); ok {
+		return s
+	}
+	return 0
+}
+
+func SignedInName(session sessions.Session) string {
+	userName := session.Get("userName")
+	if userName == nil {
+		return ""
+	}
+	if s, ok := userName.(string); ok {
+		return s
+	}
+	return ""
+}
+
+func SignedInUser(session sessions.Session) *models.User {
+	id := SignedInId(session)
+	if id <= 0 {
+		return nil
+	}
+
+	user, err := models.GetUserById(id)
+	if err != nil {
+		log.Error("user.SignedInUser: %v", err)
+		return nil
+	}
+	return user
+}
+
+func IsSignedIn(session sessions.Session) bool {
+	return SignedInId(session) > 0
+}
+
+// SignInRequire checks user status from session.
+// It will assign correspoding values to
+// template data map if user has signed in.
+func SignInRequire(redirect bool) martini.Handler {
+	return func(r render.Render, data base.TmplData, session sessions.Session) {
+		if !IsSignedIn(session) {
+			if redirect {
+				r.Redirect("/")
+			}
+			return
+		}
+
+		data["IsSigned"] = true
+		data["SignedUserId"] = SignedInId(session)
+		data["SignedUserName"] = SignedInName(session)
+		data["Avatar"] = SignedInUser(session).Avatar
+	}
+}
+
+func SignOutRequire() martini.Handler {
+	return func(r render.Render, session sessions.Session) {
+		if IsSignedIn(session) {
+			r.Redirect("/")
+		}
+	}
+}