/
server.go
89 lines (77 loc) · 2.03 KB
/
server.go
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/*
Affinity - Private groups as a service
Copyright (C) 2014 Canonical, Ltd.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Library General Public License as published by
the Free Software Foundation, version 3.
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 Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package server
import (
"bytes"
"log"
"net/http"
"github.com/gorilla/mux"
. "github.com/ngConsulti/affinity"
"github.com/ngConsulti/affinity/rbac"
)
type Response struct {
bytes.Buffer
StatusCode int
Error error
}
func (r *Response) Send(w http.ResponseWriter) {
if r.Error != nil {
log.Println(r.Error)
if r.StatusCode == 0 {
r.StatusCode = 400
}
}
if r.StatusCode != 0 {
w.WriteHeader(r.StatusCode)
}
w.Write(r.Bytes())
}
type AuthServer struct {
*mux.Router
Store rbac.Store
Schemes *SchemeMap
}
func NewAuthServer(store rbac.Store) *AuthServer {
return &AuthServer{mux.NewRouter(), store, NewSchemeMap()}
}
func (s *AuthServer) Authenticate(r *http.Request) (user User, err error) {
auths, has := r.Header[http.CanonicalHeaderKey("Authorization")]
if !has {
// If the request does not have an authorization header,
// fallback on the handshake method.
for _, scheme := range s.Schemes.HandshakeAll() {
user, err := scheme.Authenticate(r)
if err != nil {
return user, err
}
}
return User{}, ErrUnauthorized
}
for _, auth := range auths {
token, err := ParseTokenInfo(auth)
if err != nil {
continue
}
scheme := s.Schemes.Token(token.SchemeId)
if scheme == nil {
continue
}
user, err := scheme.Authenticate(r)
if err != nil {
continue
}
return user, nil
}
return User{}, ErrUnauthorized
}