mirror of https://github.com/go-gitea/gitea
106 lines
3.1 KiB
Go
106 lines
3.1 KiB
Go
// Copyright 2023 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package context
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import (
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"encoding/hex"
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"net/http"
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"strconv"
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"strings"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/util"
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"code.gitea.io/gitea/modules/web/middleware"
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"github.com/minio/sha256-simd"
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"golang.org/x/crypto/pbkdf2"
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)
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const CookieNameFlash = "gitea_flash"
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func removeSessionCookieHeader(w http.ResponseWriter) {
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cookies := w.Header()["Set-Cookie"]
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w.Header().Del("Set-Cookie")
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for _, cookie := range cookies {
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if strings.HasPrefix(cookie, setting.SessionConfig.CookieName+"=") {
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continue
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}
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w.Header().Add("Set-Cookie", cookie)
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}
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}
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// SetSiteCookie convenience function to set most cookies consistently
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// CSRF and a few others are the exception here
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func (ctx *Context) SetSiteCookie(name, value string, maxAge int) {
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middleware.SetSiteCookie(ctx.Resp, name, value, maxAge)
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}
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// DeleteSiteCookie convenience function to delete most cookies consistently
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// CSRF and a few others are the exception here
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func (ctx *Context) DeleteSiteCookie(name string) {
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middleware.SetSiteCookie(ctx.Resp, name, "", -1)
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}
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// GetSiteCookie returns given cookie value from request header.
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func (ctx *Context) GetSiteCookie(name string) string {
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return middleware.GetSiteCookie(ctx.Req, name)
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}
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// GetSuperSecureCookie returns given cookie value from request header with secret string.
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func (ctx *Context) GetSuperSecureCookie(secret, name string) (string, bool) {
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val := ctx.GetSiteCookie(name)
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return ctx.CookieDecrypt(secret, val)
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}
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// CookieDecrypt returns given value from with secret string.
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func (ctx *Context) CookieDecrypt(secret, val string) (string, bool) {
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if val == "" {
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return "", false
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}
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text, err := hex.DecodeString(val)
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if err != nil {
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return "", false
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}
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key := pbkdf2.Key([]byte(secret), []byte(secret), 1000, 16, sha256.New)
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text, err = util.AESGCMDecrypt(key, text)
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return string(text), err == nil
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}
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// SetSuperSecureCookie sets given cookie value to response header with secret string.
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func (ctx *Context) SetSuperSecureCookie(secret, name, value string, maxAge int) {
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text := ctx.CookieEncrypt(secret, value)
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ctx.SetSiteCookie(name, text, maxAge)
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}
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// CookieEncrypt encrypts a given value using the provided secret
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func (ctx *Context) CookieEncrypt(secret, value string) string {
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key := pbkdf2.Key([]byte(secret), []byte(secret), 1000, 16, sha256.New)
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text, err := util.AESGCMEncrypt(key, []byte(value))
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if err != nil {
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panic("error encrypting cookie: " + err.Error())
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}
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return hex.EncodeToString(text)
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}
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// GetCookieInt returns cookie result in int type.
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func (ctx *Context) GetCookieInt(name string) int {
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r, _ := strconv.Atoi(ctx.GetSiteCookie(name))
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return r
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}
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// GetCookieInt64 returns cookie result in int64 type.
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func (ctx *Context) GetCookieInt64(name string) int64 {
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r, _ := strconv.ParseInt(ctx.GetSiteCookie(name), 10, 64)
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return r
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}
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// GetCookieFloat64 returns cookie result in float64 type.
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func (ctx *Context) GetCookieFloat64(name string) float64 {
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v, _ := strconv.ParseFloat(ctx.GetSiteCookie(name), 64)
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return v
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}
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