snapshot of https://github.com/cortezaproject/corteza.git (2024.9.x, 2026-09-18; blobs > 131072B omitted)

server/auth/external/auth_handler.go

@@ -0,0 +1,90 @@
+package external
+
+import (
+	"net/http"
+
+	"github.com/cortezaproject/corteza/server/auth/saml"
+	"github.com/cortezaproject/corteza/server/system/types"
+	"github.com/crewjam/saml/samlsp"
+	"github.com/markbates/goth/gothic"
+)
+
+type (
+	ExternalAuthHandler interface {
+		BeginUserAuth(http.ResponseWriter, *http.Request)
+		CompleteUserAuth(http.ResponseWriter, *http.Request) (u *types.ExternalAuthUser, err error)
+	}
+
+	externalSamlAuthHandler struct {
+		service *saml.SamlSPService
+	}
+
+	externalDefaultAuthHandler struct{}
+)
+
+func (eh *externalDefaultAuthHandler) BeginUserAuth(w http.ResponseWriter, r *http.Request) {
+	gothic.BeginAuthHandler(w, r)
+}
+
+func (eh *externalDefaultAuthHandler) CompleteUserAuth(w http.ResponseWriter, r *http.Request) (u *types.ExternalAuthUser, err error) {
+	gu, err := gothic.CompleteUserAuth(w, r)
+	u = &types.ExternalAuthUser{gu}
+
+	return
+}
+
+func (eh *externalSamlAuthHandler) BeginUserAuth(w http.ResponseWriter, r *http.Request) {
+	_, err := eh.service.Handler().Session.GetSession(r)
+
+	if err == samlsp.ErrNoSession {
+		eh.service.Handler().HandleStartAuthFlow(w, r)
+	}
+}
+
+func (eh *externalSamlAuthHandler) CompleteUserAuth(w http.ResponseWriter, r *http.Request) (u *types.ExternalAuthUser, err error) {
+	var (
+		session samlsp.Session
+	)
+
+	if session, err = eh.service.Handler().Session.GetSession(r); err != nil {
+		return
+	}
+
+	if session != nil {
+		sess := session.(samlsp.JWTSessionClaims)
+
+		if sess.StandardClaims.Valid() != nil {
+			return nil, sess.StandardClaims.Valid()
+		}
+
+		u = &types.ExternalAuthUser{}
+		u.Provider = "saml"
+
+		// get identifier for use with Corteza (email)
+		u.Email = eh.service.GuessIdentifier(sess.Attributes)
+
+		// try to get email from jwt claims
+		if u.Email == "" {
+			u.Email = sess.StandardClaims.Subject
+			u.Name = sess.StandardClaims.Subject
+			u.NickName = sess.StandardClaims.Subject
+		} else {
+			u.Name = sess.Attributes.Get(eh.service.IDPUserMeta.Name)
+			u.NickName = sess.Attributes.Get(eh.service.IDPUserMeta.Handle)
+		}
+
+		u.UserID = sess.Attributes.Get("SessionIndex")
+	}
+
+	return
+}
+
+func NewSamlExternalHandler(s *saml.SamlSPService) *externalSamlAuthHandler {
+	return &externalSamlAuthHandler{
+		service: s,
+	}
+}
+
+func NewDefaultExternalHandler() *externalDefaultAuthHandler {
+	return &externalDefaultAuthHandler{}
+}