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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package session
import (
"context"
"fmt"
"net/http"
"google.golang.org/grpc/metadata"
)
func GetIncomingCookieByName(ctx context.Context, name string) (http.Cookie, error) {
md, ok := metadata.FromIncomingContext(ctx)
if !ok {
return http.Cookie{}, fmt.Errorf("no metadata found for incoming context")
}
header := make(http.Header, md.Len())
for k, v := range md {
for _, val := range v {
header.Add(k, val)
}
}
cookie, err := (&http.Request{Header: header}).Cookie(name)
if err != nil {
return http.Cookie{}, err
}
if cookie == nil {
return http.Cookie{}, fmt.Errorf("failed to get cookie with name: %s", name)
}
return *cookie, nil
}
func CreateCookieForSession(session ServerSession) (http.Cookie, error) {
var key string
if session == nil {
return http.Cookie{}, ErrNoSession
}
switch s := session.(type) {
case *statefulServerSession:
key = StatefulSessionCookieName
case *statelessServerSession:
key = StatelessSessionCookieName
default:
return http.Cookie{}, fmt.Errorf("cannot serialize session of type %T as cookie", s)
}
// Reuse the std http lib functionality for constructing cookies
cookie, err := (&http.Request{
Header: http.Header{"Cookie": []string{fmt.Sprintf("%s=%s", key, session.Token())}},
}).Cookie(key)
if err != nil {
return http.Cookie{}, err
}
if cookie == nil {
return http.Cookie{}, fmt.Errorf("failed to construct cookie for session: %s", session.Token())
}
return *cookie, nil
}
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