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Refactor CSRF protection modules, make sure CSRF tokens can be up-to-date. (#19337)

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Do a refactoring to the CSRF related code, remove most unnecessary functions.
Parse the generated token's issue time, regenerate the token every a few minutes.
This commit is contained in:
wxiaoguang 2022-04-08 13:21:05 +08:00 committed by GitHub
parent 3c3d49899f
commit 84ceaa98bd
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GPG key ID: 4AEE18F83AFDEB23
10 changed files with 170 additions and 196 deletions
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52
integrations/csrf_test.go Normal file
View file

@ -0,0 +1,52 @@
// Copyright 2017 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package integrations
import (
"net/http"
"strings"
"testing"
"code.gitea.io/gitea/models/unittest"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/setting"
"github.com/stretchr/testify/assert"
)
func TestCsrfProtection(t *testing.T) {
defer prepareTestEnv(t)()
// test web form csrf via form
user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2}).(*user_model.User)
session := loginUser(t, user.Name)
req := NewRequestWithValues(t, "POST", "/user/settings", map[string]string{
"_csrf": "fake_csrf",
})
session.MakeRequest(t, req, http.StatusSeeOther)
resp := session.MakeRequest(t, req, http.StatusSeeOther)
loc := resp.Header().Get("Location")
assert.Equal(t, setting.AppSubURL+"/", loc)
resp = session.MakeRequest(t, NewRequest(t, "GET", loc), http.StatusOK)
htmlDoc := NewHTMLParser(t, resp.Body)
assert.Equal(t, "Bad Request: invalid CSRF token",
strings.TrimSpace(htmlDoc.doc.Find(".ui.message").Text()),
)
// test web form csrf via header. TODO: should use an UI api to test
req = NewRequest(t, "POST", "/user/settings")
req.Header.Add("X-Csrf-Token", "fake_csrf")
session.MakeRequest(t, req, http.StatusSeeOther)
resp = session.MakeRequest(t, req, http.StatusSeeOther)
loc = resp.Header().Get("Location")
assert.Equal(t, setting.AppSubURL+"/", loc)
resp = session.MakeRequest(t, NewRequest(t, "GET", loc), http.StatusOK)
htmlDoc = NewHTMLParser(t, resp.Body)
assert.Equal(t, "Bad Request: invalid CSRF token",
strings.TrimSpace(htmlDoc.doc.Find(".ui.message").Text()),
)
}

1
integrations/repo_topic_test.go
View file

@ -10,6 +10,7 @@ import (
"testing"
api "code.gitea.io/gitea/modules/structs"
"github.com/stretchr/testify/assert"
)

2
modules/context/auth.go
View file

@ -63,7 +63,7 @@ func Toggle(options *ToggleOptions) func(ctx *Context) {
}
if !options.SignOutRequired && !options.DisableCSRF && ctx.Req.Method == "POST" {
Validate(ctx, ctx.csrf)
ctx.csrf.Validate(ctx)
if ctx.Written() {
return
}

10
modules/context/context.go
View file

@ -59,7 +59,7 @@ type Context struct {
Render Render
translation.Locale
Cache cache.Cache
csrf CSRF
csrf CSRFProtector
Flash *middleware.Flash
Session session.Store
@ -666,7 +666,9 @@ func Auth(authMethod auth.Method) func(*Context) {
func Contexter() func(next http.Handler) http.Handler {
rnd := templates.HTMLRenderer()
csrfOpts := getCsrfOpts()
if !setting.IsProd {
CsrfTokenRegenerationInterval = 5 * time.Second // in dev, re-generate the tokens more aggressively for debug purpose
}
return func(next http.Handler) http.Handler {
return http.HandlerFunc(func(resp http.ResponseWriter, req *http.Request) {
locale := middleware.Locale(resp, req)
@ -697,7 +699,7 @@ func Contexter() func(next http.Handler) http.Handler {
ctx.Data["Context"] = &ctx
ctx.Req = WithContext(req, &ctx)
ctx.csrf = Csrfer(csrfOpts, &ctx)
ctx.csrf = PrepareCSRFProtector(csrfOpts, &ctx)
// Get flash.
flashCookie := ctx.GetCookie("macaron_flash")
@ -755,7 +757,7 @@ func Contexter() func(next http.Handler) http.Handler {
ctx.Resp.Header().Set(`X-Frame-Options`, setting.CORSConfig.XFrameOptions)
ctx.Data["CsrfToken"] = html.EscapeString(ctx.csrf.GetToken())
ctx.Data["CsrfToken"] = ctx.csrf.GetToken()
ctx.Data["CsrfTokenHtml"] = template.HTML(`<input type="hidden" name="_csrf" value="` + ctx.Data["CsrfToken"].(string) + `">`)
// FIXME: do we really always need these setting? There should be someway to have to avoid having to always set these

196
modules/context/csrf.go
View file

@ -31,29 +31,19 @@ import (
"code.gitea.io/gitea/modules/web/middleware"
)
// CSRF represents a CSRF service and is used to get the current token and validate a suspect token.
type CSRF interface {
// Return HTTP header to search for token.
// CSRFProtector represents a CSRF protector and is used to get the current token and validate the token.
type CSRFProtector interface {
// GetHeaderName returns HTTP header to search for token.
GetHeaderName() string
// Return form value to search for token.
// GetFormName returns form value to search for token.
GetFormName() string
// Return cookie name to search for token.
GetCookieName() string
// Return cookie path
GetCookiePath() string
// Return the flag value used for the csrf token.
GetCookieHTTPOnly() bool
// Return cookie domain
GetCookieDomain() string
// Return the token.
// GetToken returns the token.
GetToken() string
// Validate by token.
ValidToken(t string) bool
// Error replies to the request with a custom function when ValidToken fails.
Error(w http.ResponseWriter)
// Validate validates the token in http context.
Validate(ctx *Context)
}
type csrf struct {
type csrfProtector struct {
// Header name value for setting and getting csrf token.
Header string
// Form name value for setting and getting csrf token.
@ -72,56 +62,24 @@ type csrf struct {
ID string
// Secret used along with the unique id above to generate the Token.
Secret string
// ErrorFunc is the custom function that replies to the request when ValidToken fails.
ErrorFunc func(w http.ResponseWriter)
}
// GetHeaderName returns the name of the HTTP header for csrf token.
func (c *csrf) GetHeaderName() string {
func (c *csrfProtector) GetHeaderName() string {
return c.Header
}
// GetFormName returns the name of the form value for csrf token.
func (c *csrf) GetFormName() string {
func (c *csrfProtector) GetFormName() string {
return c.Form
}
// GetCookieName returns the name of the cookie for csrf token.
func (c *csrf) GetCookieName() string {
return c.Cookie
}
// GetCookiePath returns the path of the cookie for csrf token.
func (c *csrf) GetCookiePath() string {
return c.CookiePath
}
// GetCookieHTTPOnly returns the flag value used for the csrf token.
func (c *csrf) GetCookieHTTPOnly() bool {
return c.CookieHTTPOnly
}
// GetCookieDomain returns the flag value used for the csrf token.
func (c *csrf) GetCookieDomain() string {
return c.CookieDomain
}
// GetToken returns the current token. This is typically used
// to populate a hidden form in an HTML template.
func (c *csrf) GetToken() string {
func (c *csrfProtector) GetToken() string {
return c.Token
}
// ValidToken validates the passed token against the existing Secret and ID.
func (c *csrf) ValidToken(t string) bool {
return ValidToken(t, c.Secret, c.ID, "POST")
}
// Error replies to the request when ValidToken fails.
func (c *csrf) Error(w http.ResponseWriter) {
c.ErrorFunc(w)
}
// CsrfOptions maintains options to manage behavior of Generate.
type CsrfOptions struct {
// The global secret value used to generate Tokens.
@ -143,7 +101,7 @@ type CsrfOptions struct {
SessionKey string
// oldSessionKey saves old value corresponding to SessionKey.
oldSessionKey string
// If true, send token via X-CSRFToken header.
// If true, send token via X-Csrf-Token header.
SetHeader bool
// If true, send token via _csrf cookie.
SetCookie bool
@ -151,20 +109,12 @@ type CsrfOptions struct {
Secure bool
// Disallow Origin appear in request header.
Origin bool
// The function called when Validate fails.
ErrorFunc func(w http.ResponseWriter)
// Cookie life time. Default is 0
// Cookie lifetime. Default is 0
CookieLifeTime int
}
func prepareOptions(options []CsrfOptions) CsrfOptions {
var opt CsrfOptions
if len(options) > 0 {
opt = options[0]
}
// Defaults.
if len(opt.Secret) == 0 {
func prepareDefaultCsrfOptions(opt CsrfOptions) CsrfOptions {
if opt.Secret == "" {
randBytes, err := util.CryptoRandomBytes(8)
if err != nil {
// this panic can be handled by the recover() in http handlers
@ -172,36 +122,30 @@ func prepareOptions(options []CsrfOptions) CsrfOptions {
}
opt.Secret = base32.StdEncoding.EncodeToString(randBytes)
}
if len(opt.Header) == 0 {
opt.Header = "X-CSRFToken"
if opt.Header == "" {
opt.Header = "X-Csrf-Token"
}
if len(opt.Form) == 0 {
if opt.Form == "" {
opt.Form = "_csrf"
}
if len(opt.Cookie) == 0 {
if opt.Cookie == "" {
opt.Cookie = "_csrf"
}
if len(opt.CookiePath) == 0 {
if opt.CookiePath == "" {
opt.CookiePath = "/"
}
if len(opt.SessionKey) == 0 {
if opt.SessionKey == "" {
opt.SessionKey = "uid"
}
opt.oldSessionKey = "_old_" + opt.SessionKey
if opt.ErrorFunc == nil {
opt.ErrorFunc = func(w http.ResponseWriter) {
http.Error(w, "Invalid csrf token.", http.StatusBadRequest)
}
}
return opt
}
// Csrfer maps CSRF to each request. If this request is a Get request, it will generate a new token.
// PrepareCSRFProtector returns a CSRFProtector to be used for every request.
// Additionally, depending on options set, generated tokens will be sent via Header and/or Cookie.
func Csrfer(opt CsrfOptions, ctx *Context) CSRF {
opt = prepareOptions([]CsrfOptions{opt})
x := &csrf{
func PrepareCSRFProtector(opt CsrfOptions, ctx *Context) CSRFProtector {
opt = prepareDefaultCsrfOptions(opt)
x := &csrfProtector{
Secret: opt.Secret,
Header: opt.Header,
Form: opt.Form,
@ -209,7 +153,6 @@ func Csrfer(opt CsrfOptions, ctx *Context) CSRF {
CookieDomain: opt.CookieDomain,
CookiePath: opt.CookiePath,
CookieHTTPOnly: opt.CookieHTTPOnly,
ErrorFunc: opt.ErrorFunc,
}
if opt.Origin && len(ctx.Req.Header.Get("Origin")) > 0 {
@ -229,28 +172,31 @@ func Csrfer(opt CsrfOptions, ctx *Context) CSRF {
}
}
needsNew := false
oldUID := ctx.Session.Get(opt.oldSessionKey)
if oldUID == nil || oldUID.(string) != x.ID {
needsNew = true
uidChanged := oldUID == nil || oldUID.(string) != x.ID
cookieToken := ctx.GetCookie(opt.Cookie)
needsNew := true
if uidChanged {
_ = ctx.Session.Set(opt.oldSessionKey, x.ID)
} else {
// If cookie present, map existing token, else generate a new one.
if val := ctx.GetCookie(opt.Cookie); len(val) > 0 {
// FIXME: test coverage.
x.Token = val
} else {
needsNew = true
} else if cookieToken != "" {
// If cookie token presents, re-use existing unexpired token, else generate a new one.
if issueTime, ok := ParseCsrfToken(cookieToken); ok {
dur := time.Since(issueTime) // issueTime is not a monotonic-clock, the server time may change a lot to an early time.
if dur >= -CsrfTokenRegenerationInterval && dur <= CsrfTokenRegenerationInterval {
x.Token = cookieToken
needsNew = false
}
}
}
if needsNew {
// FIXME: actionId.
x.Token = GenerateToken(x.Secret, x.ID, "POST")
x.Token = GenerateCsrfToken(x.Secret, x.ID, "POST", time.Now())
if opt.SetCookie {
var expires interface{}
if opt.CookieLifeTime == 0 {
expires = time.Now().AddDate(0, 0, 1)
expires = time.Now().Add(CsrfTokenTimeout)
}
middleware.SetCookie(ctx.Resp, opt.Cookie, x.Token,
opt.CookieLifeTime,
@ -270,47 +216,31 @@ func Csrfer(opt CsrfOptions, ctx *Context) CSRF {
return x
}
// Validate should be used as a per route middleware. It attempts to get a token from a "X-CSRFToken"
// HTTP header and then a "_csrf" form value. If one of these is found, the token will be validated
// using ValidToken. If this validation fails, custom Error is sent in the reply.
// If neither a header or form value is found, http.StatusBadRequest is sent.
func Validate(ctx *Context, x CSRF) {
if token := ctx.Req.Header.Get(x.GetHeaderName()); len(token) > 0 {
if !x.ValidToken(token) {
// Delete the cookie
middleware.SetCookie(ctx.Resp, x.GetCookieName(), "",
-1,
x.GetCookiePath(),
x.GetCookieDomain()) // FIXME: Do we need to set the Secure, httpOnly and SameSite values too?
if middleware.IsAPIPath(ctx.Req) {
x.Error(ctx.Resp)
return
}
func (c *csrfProtector) validateToken(ctx *Context, token string) {
if !ValidCsrfToken(token, c.Secret, c.ID, "POST", time.Now()) {
middleware.DeleteCSRFCookie(ctx.Resp)
if middleware.IsAPIPath(ctx.Req) {
// currently, there should be no access to the APIPath with CSRF token. because templates shouldn't use the `/api/` endpoints.
http.Error(ctx.Resp, "Invalid CSRF token.", http.StatusBadRequest)
} else {
ctx.Flash.Error(ctx.Tr("error.invalid_csrf"))
ctx.Redirect(setting.AppSubURL + "/")
}
return
}
if token := ctx.Req.FormValue(x.GetFormName()); len(token) > 0 {
if !x.ValidToken(token) {
// Delete the cookie
middleware.SetCookie(ctx.Resp, x.GetCookieName(), "",
-1,
x.GetCookiePath(),
x.GetCookieDomain()) // FIXME: Do we need to set the Secure, httpOnly and SameSite values too?
if middleware.IsAPIPath(ctx.Req) {
x.Error(ctx.Resp)
return
}
ctx.Flash.Error(ctx.Tr("error.invalid_csrf"))
ctx.Redirect(setting.AppSubURL + "/")
}
return
}
if middleware.IsAPIPath(ctx.Req) {
http.Error(ctx.Resp, "Bad Request: no CSRF token present", http.StatusBadRequest)
return
}
ctx.Flash.Error(ctx.Tr("error.missing_csrf"))
ctx.Redirect(setting.AppSubURL + "/")
}
// Validate should be used as a per route middleware. It attempts to get a token from an "X-Csrf-Token"
// HTTP header and then a "_csrf" form value. If one of these is found, the token will be validated.
// If this validation fails, custom Error is sent in the reply.
// If neither a header nor form value is found, http.StatusBadRequest is sent.
func (c *csrfProtector) Validate(ctx *Context) {
if token := ctx.Req.Header.Get(c.GetHeaderName()); token != "" {
c.validateToken(ctx, token)
return
}
if token := ctx.Req.FormValue(c.GetFormName()); token != "" {
c.validateToken(ctx, token)
return
}
c.validateToken(ctx, "") // no csrf token, use an empty token to respond error
}

68
modules/context/xsrf.go
View file

@ -28,69 +28,69 @@ import (
"time"
)
// Timeout represents the duration that XSRF tokens are valid.
// CsrfTokenTimeout represents the duration that XSRF tokens are valid.
// It is exported so clients may set cookie timeouts that match generated tokens.
const Timeout = 24 * time.Hour
const CsrfTokenTimeout = 24 * time.Hour
// clean sanitizes a string for inclusion in a token by replacing all ":"s.
func clean(s string) string {
return strings.ReplaceAll(s, ":", "_")
}
// CsrfTokenRegenerationInterval is the interval between token generations, old tokens are still valid before CsrfTokenTimeout
var CsrfTokenRegenerationInterval = 10 * time.Minute
// GenerateToken returns a URL-safe secure XSRF token that expires in 24 hours.
//
var csrfTokenSep = []byte(":")
// GenerateCsrfToken returns a URL-safe secure XSRF token that expires in CsrfTokenTimeout hours.
// key is a secret key for your application.
// userID is a unique identifier for the user.
// actionID is the action the user is taking (e.g. POSTing to a particular path).
func GenerateToken(key, userID, actionID string) string {
return generateTokenAtTime(key, userID, actionID, time.Now())
}
// generateTokenAtTime is like Generate, but returns a token that expires 24 hours from now.
func generateTokenAtTime(key, userID, actionID string, now time.Time) string {
func GenerateCsrfToken(key, userID, actionID string, now time.Time) string {
nowUnixNano := now.UnixNano()
nowUnixNanoStr := strconv.FormatInt(nowUnixNano, 10)
h := hmac.New(sha1.New, []byte(key))
fmt.Fprintf(h, "%s:%s:%d", clean(userID), clean(actionID), now.UnixNano())
tok := fmt.Sprintf("%s:%d", h.Sum(nil), now.UnixNano())
h.Write([]byte(strings.ReplaceAll(userID, ":", "_")))
h.Write(csrfTokenSep)
h.Write([]byte(strings.ReplaceAll(actionID, ":", "_")))
h.Write(csrfTokenSep)
h.Write([]byte(nowUnixNanoStr))
tok := fmt.Sprintf("%s:%s", h.Sum(nil), nowUnixNanoStr)
return base64.RawURLEncoding.EncodeToString([]byte(tok))
}
// ValidToken returns true if token is a valid, unexpired token returned by Generate.
func ValidToken(token, key, userID, actionID string) bool {
return validTokenAtTime(token, key, userID, actionID, time.Now())
}
// validTokenAtTime is like Valid, but it uses now to check if the token is expired.
func validTokenAtTime(token, key, userID, actionID string, now time.Time) bool {
// Decode the token.
func ParseCsrfToken(token string) (issueTime time.Time, ok bool) {
data, err := base64.RawURLEncoding.DecodeString(token)
if err != nil {
return false
return time.Time{}, false
}
// Extract the issue time of the token.
sep := bytes.LastIndex(data, []byte{':'})
if sep < 0 {
return false
pos := bytes.LastIndex(data, csrfTokenSep)
if pos == -1 {
return time.Time{}, false
}
nanos, err := strconv.ParseInt(string(data[sep+1:]), 10, 64)
nanos, err := strconv.ParseInt(string(data[pos+1:]), 10, 64)
if err != nil {
return time.Time{}, false
}
return time.Unix(0, nanos), true
}
// ValidCsrfToken returns true if token is a valid and unexpired token returned by Generate.
func ValidCsrfToken(token, key, userID, actionID string, now time.Time) bool {
issueTime, ok := ParseCsrfToken(token)
if !ok {
return false
}
issueTime := time.Unix(0, nanos)
// Check that the token is not expired.
if now.Sub(issueTime) >= Timeout {
if now.Sub(issueTime) >= CsrfTokenTimeout {
return false
}
// Check that the token is not from the future.
// Allow 1 minute grace period in case the token is being verified on a
// Allow 1-minute grace period in case the token is being verified on a
// machine whose clock is behind the machine that issued the token.
if issueTime.After(now.Add(1 * time.Minute)) {
return false
}
expected := generateTokenAtTime(key, userID, actionID, issueTime)
expected := GenerateCsrfToken(key, userID, actionID, issueTime)
// Check that the token matches the expected value.
// Use constant time comparison to avoid timing attacks.

20
modules/context/xsrf_test.go
View file

@ -37,18 +37,18 @@ var (
func Test_ValidToken(t *testing.T) {
t.Run("Validate token", func(t *testing.T) {
tok := generateTokenAtTime(key, userID, actionID, now)
assert.True(t, validTokenAtTime(tok, key, userID, actionID, oneMinuteFromNow))
assert.True(t, validTokenAtTime(tok, key, userID, actionID, now.Add(Timeout-1*time.Nanosecond)))
assert.True(t, validTokenAtTime(tok, key, userID, actionID, now.Add(-1*time.Minute)))
tok := GenerateCsrfToken(key, userID, actionID, now)
assert.True(t, ValidCsrfToken(tok, key, userID, actionID, oneMinuteFromNow))
assert.True(t, ValidCsrfToken(tok, key, userID, actionID, now.Add(CsrfTokenTimeout-1*time.Nanosecond)))
assert.True(t, ValidCsrfToken(tok, key, userID, actionID, now.Add(-1*time.Minute)))
})
}
// Test_SeparatorReplacement tests that separators are being correctly substituted
func Test_SeparatorReplacement(t *testing.T) {
t.Run("Test two separator replacements", func(t *testing.T) {
assert.NotEqual(t, generateTokenAtTime("foo:bar", "baz", "wah", now),
generateTokenAtTime("foo", "bar:baz", "wah", now))
assert.NotEqual(t, GenerateCsrfToken("foo:bar", "baz", "wah", now),
GenerateCsrfToken("foo", "bar:baz", "wah", now))
})
}
@ -61,13 +61,13 @@ func Test_InvalidToken(t *testing.T) {
{"Bad key", "foobar", userID, actionID, oneMinuteFromNow},
{"Bad userID", key, "foobar", actionID, oneMinuteFromNow},
{"Bad actionID", key, userID, "foobar", oneMinuteFromNow},
{"Expired", key, userID, actionID, now.Add(Timeout)},
{"Expired", key, userID, actionID, now.Add(CsrfTokenTimeout)},
{"More than 1 minute from the future", key, userID, actionID, now.Add(-1*time.Nanosecond - 1*time.Minute)},
}
tok := generateTokenAtTime(key, userID, actionID, now)
tok := GenerateCsrfToken(key, userID, actionID, now)
for _, itt := range invalidTokenTests {
assert.False(t, validTokenAtTime(tok, itt.key, itt.userID, itt.actionID, itt.t))
assert.False(t, ValidCsrfToken(tok, itt.key, itt.userID, itt.actionID, itt.t))
}
})
}
@ -84,7 +84,7 @@ func Test_ValidateBadData(t *testing.T) {
}
for _, bdt := range badDataTests {
assert.False(t, validTokenAtTime(bdt.tok, key, userID, actionID, oneMinuteFromNow))
assert.False(t, ValidCsrfToken(bdt.tok, key, userID, actionID, oneMinuteFromNow))
}
})
}

13
modules/web/middleware/cookie.go
View file

@ -98,17 +98,6 @@ func DeleteRedirectToCookie(resp http.ResponseWriter) {
SameSite(setting.SessionConfig.SameSite))
}
// DeleteSesionConfigPathCookie convenience function to delete SessionConfigPath cookies consistently
func DeleteSesionConfigPathCookie(resp http.ResponseWriter, name string) {
SetCookie(resp, name, "",
-1,
setting.SessionConfig.CookiePath,
setting.SessionConfig.Domain,
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, "",
@ -117,7 +106,7 @@ func DeleteCSRFCookie(resp http.ResponseWriter) {
setting.SessionConfig.Domain) // FIXME: Do we need to set the Secure, httpOnly and SameSite values too?
}
// SetCookie set the cookies
// 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{}

2
routers/web/auth/auth.go
View file

@ -345,7 +345,7 @@ func handleSignInFull(ctx *context.Context, u *user_model.User, remember, obeyRe
ctx.Locale = middleware.Locale(ctx.Resp, ctx.Req)
}
// Clear whatever CSRF has right now, force to generate a new one
// Clear whatever CSRF cookie has right now, force to generate a new one
middleware.DeleteCSRFCookie(ctx.Resp)
// Register last login

2
routers/web/auth/oauth.go
View file

@ -1007,7 +1007,7 @@ func handleOAuth2SignIn(ctx *context.Context, source *auth.Source, u *user_model
log.Error("Error storing session: %v", err)
}
// Clear whatever CSRF has right now, force to generate a new one
// Clear whatever CSRF cookie has right now, force to generate a new one
middleware.DeleteCSRFCookie(ctx.Resp)
// Register last login