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0d8478cff8- In Go 1.21 the crypto/sha256 [got a massive improvement](https://go.dev/doc/go1.21#crypto/sha256) by utilizing the SHA instructions for AMD64 CPUs, which sha256-simd already was doing. The performance is now on par and I think it's preferable to use the standard library rather than a package when possible. ``` cpu: AMD Ryzen 5 3600X 6-Core Processor │ simd.txt │ go.txt │ │ sec/op │ sec/op vs base │ Hash/8Bytes-12 63.25n ± 1% 73.38n ± 1% +16.02% (p=0.002 n=6) Hash/64Bytes-12 98.73n ± 1% 105.30n ± 1% +6.65% (p=0.002 n=6) Hash/1K-12 567.2n ± 1% 572.8n ± 1% +0.99% (p=0.002 n=6) Hash/8K-12 4.062µ ± 1% 4.062µ ± 1% ~ (p=0.396 n=6) Hash/1M-12 512.1µ ± 0% 510.6µ ± 1% ~ (p=0.485 n=6) Hash/5M-12 2.556m ± 1% 2.564m ± 0% ~ (p=0.093 n=6) Hash/10M-12 5.112m ± 0% 5.127m ± 0% ~ (p=0.093 n=6) geomean 13.82µ 14.27µ +3.28% │ simd.txt │ go.txt │ │ B/s │ B/s vs base │ Hash/8Bytes-12 120.6Mi ± 1% 104.0Mi ± 1% -13.81% (p=0.002 n=6) Hash/64Bytes-12 618.2Mi ± 1% 579.8Mi ± 1% -6.22% (p=0.002 n=6) Hash/1K-12 1.682Gi ± 1% 1.665Gi ± 1% -0.98% (p=0.002 n=6) Hash/8K-12 1.878Gi ± 1% 1.878Gi ± 1% ~ (p=0.310 n=6) Hash/1M-12 1.907Gi ± 0% 1.913Gi ± 1% ~ (p=0.485 n=6) Hash/5M-12 1.911Gi ± 1% 1.904Gi ± 0% ~ (p=0.093 n=6) Hash/10M-12 1.910Gi ± 0% 1.905Gi ± 0% ~ (p=0.093 n=6) geomean 1.066Gi 1.032Gi -3.18% ``` (cherry picked from commitabd94ff5b5) (cherry picked from commit15e81637ab) Conflicts: go.mod https://codeberg.org/forgejo/forgejo/pulls/1581 (cherry picked from commit 5caea2d75aeac78fb306f58a3cf7809d5b70c7f2) (cherry picked from commit08da542cce) (cherry picked from commitd71a8cc9fb) (cherry picked from commit63c9fc2bee) (cherry picked from commite1db85d48a) (cherry picked from commit5e86a5d2d1)
86 lines
2.5 KiB
Go
86 lines
2.5 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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"crypto/sha256"
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"encoding/hex"
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"net/http"
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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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"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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