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// Copyright 2020 The Macaron Authors
// Copyright 2020 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package middleware
import (
"net/http"
"net/url"
"time"
"code.gitea.io/gitea/modules/setting"
)
// MaxAge sets the maximum age for a provided cookie
func MaxAge(maxAge int) func(*http.Cookie) {
return func(c *http.Cookie) {
c.MaxAge = maxAge
}
}
// Path sets the path for a provided cookie
func Path(path string) func(*http.Cookie) {
return func(c *http.Cookie) {
c.Path = path
}
}
// Domain sets the domain for a provided cookie
func Domain(domain string) func(*http.Cookie) {
return func(c *http.Cookie) {
c.Domain = domain
}
}
// Secure sets the secure setting for a provided cookie
func Secure(secure bool) func(*http.Cookie) {
return func(c *http.Cookie) {
c.Secure = secure
}
}
// HTTPOnly sets the HttpOnly setting for a provided cookie
func HTTPOnly(httpOnly bool) func(*http.Cookie) {
return func(c *http.Cookie) {
c.HttpOnly = httpOnly
}
}
// Expires sets the expires and rawexpires for a provided cookie
func Expires(expires time.Time) func(*http.Cookie) {
return func(c *http.Cookie) {
c.Expires = expires
c.RawExpires = expires.Format(time.UnixDate)
}
}
// SameSite sets the SameSite for a provided cookie
func SameSite(sameSite http.SameSite) func(*http.Cookie) {
return func(c *http.Cookie) {
c.SameSite = sameSite
}
}
// NewCookie creates a cookie
func NewCookie(name, value string, maxAge int) *http.Cookie {
return &http.Cookie{
Name: name,
Value: value,
HttpOnly: true,
Path: setting.SessionConfig.CookiePath,
Domain: setting.SessionConfig.Domain,
MaxAge: maxAge,
Secure: setting.SessionConfig.Secure,
}
}
// SetRedirectToCookie convenience function to set the RedirectTo cookie consistently
func SetRedirectToCookie(resp http.ResponseWriter, value string) {
SetCookie(resp, "redirect_to", value,
0,
setting.AppSubURL,
"",
setting.SessionConfig.Secure,
true,
SameSite(setting.SessionConfig.SameSite))
}
// DeleteRedirectToCookie convenience function to delete most cookies consistently
func DeleteRedirectToCookie(resp http.ResponseWriter) {
SetCookie(resp, "redirect_to", "",
-1,
setting.AppSubURL,
"",
setting.SessionConfig.Secure,
true,
SameSite(setting.SessionConfig.SameSite))
}
// DeleteCSRFCookie convenience function to delete SessionConfigPath cookies consistently
func DeleteCSRFCookie(resp http.ResponseWriter) {
SetCookie(resp, setting.CSRFCookieName, "",
-1,
setting.SessionConfig.CookiePath,
setting.SessionConfig.Domain) // FIXME: Do we need to set the Secure, httpOnly and SameSite values too?
}
// SetCookie set the cookies. (name, value, lifetime, path, domain, secure, httponly, expires, {sameSite, ...})
// TODO: Copied from gitea.com/macaron/macaron and should be improved after macaron removed.
func SetCookie(resp http.ResponseWriter, name, value string, others ...interface{}) {
cookie := http.Cookie{}
cookie.Name = name
cookie.Value = url.QueryEscape(value)
if len(others) > 0 {
switch v := others[0].(type) {
case int:
cookie.MaxAge = v
case int64:
cookie.MaxAge = int(v)
case int32:
cookie.MaxAge = int(v)
case func(*http.Cookie):
v(&cookie)
}
}
cookie.Path = "/"
if len(others) > 1 {
if v, ok := others[1].(string); ok && len(v) > 0 {
cookie.Path = v
} else if v, ok := others[1].(func(*http.Cookie)); ok {
v(&cookie)
}
}
if len(others) > 2 {
if v, ok := others[2].(string); ok && len(v) > 0 {
cookie.Domain = v
} else if v, ok := others[2].(func(*http.Cookie)); ok {
v(&cookie)
}
}
if len(others) > 3 {
switch v := others[3].(type) {
case bool:
cookie.Secure = v
case func(*http.Cookie):
v(&cookie)
default:
if others[3] != nil {
cookie.Secure = true
}
}
}
if len(others) > 4 {
if v, ok := others[4].(bool); ok && v {
cookie.HttpOnly = true
} else if v, ok := others[4].(func(*http.Cookie)); ok {
v(&cookie)
}
}
if len(others) > 5 {
if v, ok := others[5].(time.Time); ok {
cookie.Expires = v
cookie.RawExpires = v.Format(time.UnixDate)
} else if v, ok := others[5].(func(*http.Cookie)); ok {
v(&cookie)
}
}
if len(others) > 6 {
for _, other := range others[6:] {
if v, ok := other.(func(*http.Cookie)); ok {
v(&cookie)
}
}
}
resp.Header().Add("Set-Cookie", cookie.String())
}
// GetCookie returns given cookie value from request header.
func GetCookie(req *http.Request, name string) string {
cookie, err := req.Cookie(name)
if err != nil {
return ""
}
val, _ := url.QueryUnescape(cookie.Value)
return val
}
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