Start adding openid auth handler

pkg/modules/auth/openid/openid.go

@@ -0,0 +1,73 @@
+// Vikunja is a to-do list application to facilitate your life.
+// Copyright 2018-2020 Vikunja and contributors. All rights reserved.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+package openid
+
+import (
+	"code.vikunja.io/api/pkg/config"
+	"code.vikunja.io/api/pkg/models"
+	"github.com/labstack/echo/v4"
+	"net/http"
+)
+
+type Callback struct {
+	Code  string `query:"code" json:"code"`
+	Scope string `query:"scop" json:"scope"`
+	State string `query:"state" json:"state"`
+}
+
+type Provider struct {
+	Name     string `json:"name"`
+	AuthURL  string `json:"auth_url"`
+	ClientID string `json:"client_id"`
+}
+
+func GetAllProviders() (providers []*Provider) {
+
+	rawProvider := config.AuthOpenIDProviders.Get().([]interface{})
+
+	for _, p := range rawProvider {
+		pi := p.(map[interface{}]interface{})
+
+		providers = append(providers, &Provider{
+			Name:     pi["name"].(string),
+			AuthURL:  pi["authurl"].(string),
+			ClientID: pi["clientid"].(string),
+		})
+	}
+
+	return
+}
+
+func HandleCallback(c echo.Context) error {
+	cb := &Callback{}
+	if err := c.Bind(cb); err != nil {
+		return c.JSON(http.StatusBadRequest, models.Message{Message: "Bad data"})
+	}
+
+	// Check if the provider exists
+	//providerKey := c.Param("provider")
+
+	// Parse the access & ID token
+
+	// Get the userinfo
+
+	// Check if we have seen this user before
+
+	// Log them in
+
+	return nil
+}

pkg/routes/routes.go

@@ -47,6 +47,7 @@
 package routes
 
 import (
+	"code.vikunja.io/api/pkg/modules/auth/openid"
 	"strings"
 	"time"
 
@@ -220,12 +221,18 @@ func registerAPIRoutes(a *echo.Group) {
 	// Prometheus endpoint
 	setupMetrics(n)
 
-	// User stuff
-	n.POST("/login", apiv1.Login)
-	n.POST("/register", apiv1.RegisterUser)
-	n.POST("/user/password/token", apiv1.UserRequestResetPasswordToken)
-	n.POST("/user/password/reset", apiv1.UserResetPassword)
-	n.POST("/user/confirm", apiv1.UserConfirmEmail)
+	if config.AuthLocalEnabled.GetBool() {
+		// User stuff
+		n.POST("/login", apiv1.Login)
+		n.POST("/register", apiv1.RegisterUser)
+		n.POST("/user/password/token", apiv1.UserRequestResetPasswordToken)
+		n.POST("/user/password/reset", apiv1.UserResetPassword)
+		n.POST("/user/confirm", apiv1.UserConfirmEmail)
+	}
+
+	if config.AuthOpenIDEnabled.GetBool() {
+		n.POST("/auth/openid/:provider/callback", openid.HandleCallback)
+	}
 
 	// Info endpoint
 	n.GET("/info", apiv1.Info)