forgejo/modules/web/middleware/cookie.go
Jonathan Tran 7ff74a47c8
fix: Fix to delete cookie when AppSubURL is non-empty (#30375)
Cookies may exist on "/subpath" and "/subpath/" for some legacy reasons (eg: changed CookiePath behavior in code). The legacy cookie should be removed correctly.

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: Kyle D <kdumontnu@gmail.com>
(cherry picked from commit b18c04ebde94e23d97da4958173faea843d5344f)
2024-04-15 20:01:36 +02:00

76 lines
2.4 KiB
Go

// Copyright 2020 The Macaron Authors
// Copyright 2020 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package middleware
import (
"net/http"
"net/url"
"strings"
"code.gitea.io/gitea/modules/setting"
)
// SetRedirectToCookie convenience function to set the RedirectTo cookie consistently
func SetRedirectToCookie(resp http.ResponseWriter, value string) {
SetSiteCookie(resp, "redirect_to", value, 0)
}
// DeleteRedirectToCookie convenience function to delete most cookies consistently
func DeleteRedirectToCookie(resp http.ResponseWriter) {
SetSiteCookie(resp, "redirect_to", "", -1)
}
// GetSiteCookie returns given cookie value from request header.
func GetSiteCookie(req *http.Request, name string) string {
cookie, err := req.Cookie(name)
if err != nil {
return ""
}
val, _ := url.QueryUnescape(cookie.Value)
return val
}
// SetSiteCookie returns given cookie value from request header.
func SetSiteCookie(resp http.ResponseWriter, name, value string, maxAge int) {
cookie := &http.Cookie{
Name: name,
Value: url.QueryEscape(value),
MaxAge: maxAge,
Path: setting.SessionConfig.CookiePath,
Domain: setting.SessionConfig.Domain,
Secure: setting.SessionConfig.Secure,
HttpOnly: true,
SameSite: setting.SessionConfig.SameSite,
}
resp.Header().Add("Set-Cookie", cookie.String())
// Previous versions would use a cookie path with a trailing /.
// These are more specific than cookies without a trailing /, so
// we need to delete these if they exist.
DeleteLegacySiteCookie(resp, name)
}
// DeleteLegacySiteCookie deletes the cookie with the given name at the cookie
// path with a trailing /, which would unintentionally override the cookie.
func DeleteLegacySiteCookie(resp http.ResponseWriter, name string) {
if setting.SessionConfig.CookiePath == "" || strings.HasSuffix(setting.SessionConfig.CookiePath, "/") {
// If the cookie path ends with /, no legacy cookies will take
// precedence, so do nothing. The exception is that cookies with no
// path could override other cookies, but it's complicated and we don't
// currently handle that.
return
}
cookie := &http.Cookie{
Name: name,
Value: "",
MaxAge: -1,
Path: setting.SessionConfig.CookiePath + "/",
Domain: setting.SessionConfig.Domain,
Secure: setting.SessionConfig.Secure,
HttpOnly: true,
SameSite: setting.SessionConfig.SameSite,
}
resp.Header().Add("Set-Cookie", cookie.String())
}