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- // Copyright 2015 Google Inc. All rights reserved.
- //
- // Licensed 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 cookie allows for the modification of cookies on http requests and responses.
- package cookie
-
- import (
- "encoding/json"
- "net/http"
- "time"
-
- "github.com/google/martian"
- "github.com/google/martian/log"
- "github.com/google/martian/parse"
- )
-
- func init() {
- parse.Register("cookie.Modifier", modifierFromJSON)
- }
-
- type modifier struct {
- cookie *http.Cookie
- }
-
- type modifierJSON struct {
- Name string `json:"name"`
- Value string `json:"value"`
- Path string `json:"path"`
- Domain string `json:"domain"`
- Expires time.Time `json:"expires"`
- Secure bool `json:"secure"`
- HTTPOnly bool `json:"httpOnly"`
- MaxAge int `json:"maxAge"`
- Scope []parse.ModifierType `json:"scope"`
- }
-
- // ModifyRequest adds cookie to the request.
- func (m *modifier) ModifyRequest(req *http.Request) error {
- req.AddCookie(m.cookie)
- log.Debugf("cookie.ModifyRequest: %s: cookie: %s", req.URL, m.cookie)
-
- return nil
- }
-
- // ModifyResponse sets cookie on the response.
- func (m *modifier) ModifyResponse(res *http.Response) error {
- res.Header.Add("Set-Cookie", m.cookie.String())
- log.Debugf("cookie.ModifyResponse: %s: cookie: %s", res.Request.URL, m.cookie)
-
- return nil
- }
-
- // NewModifier returns a modifier that injects the provided cookie into the
- // request or response.
- func NewModifier(cookie *http.Cookie) martian.RequestResponseModifier {
- return &modifier{
- cookie: cookie,
- }
- }
-
- // modifierFromJSON takes a JSON message as a byte slice and returns a
- // CookieModifier and an error.
- //
- // Example JSON Configuration message:
- // {
- // "name": "Martian-Cookie",
- // "value": "some value",
- // "path": "/some/path",
- // "domain": "example.com",
- // "expires": "2025-04-12T23:20:50.52Z", // RFC 3339
- // "secure": true,
- // "httpOnly": false,
- // "maxAge": 86400,
- // "scope": ["request", "result"]
- // }
- func modifierFromJSON(b []byte) (*parse.Result, error) {
- msg := &modifierJSON{}
- if err := json.Unmarshal(b, msg); err != nil {
- return nil, err
- }
-
- c := &http.Cookie{
- Name: msg.Name,
- Value: msg.Value,
- Path: msg.Path,
- Domain: msg.Domain,
- Expires: msg.Expires,
- Secure: msg.Secure,
- HttpOnly: msg.HTTPOnly,
- MaxAge: msg.MaxAge,
- }
-
- return parse.NewResult(NewModifier(c), msg.Scope)
- }
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