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Add SameSite setting for cookies (#14900)

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Add SameSite setting for cookies and rationalise the cookie setting code. Switches SameSite to Lax by default. 

There is a possible future extension of differentiating which cookies could be set at Strict by default but that is for a future PR.

Fix #5583

Signed-off-by: Andrew Thornton <art27@cantab.net>
This commit is contained in:
zeripath 2021-03-07 08:12:43 +00:00 • committed by GitHub
parent beed5476e2
commit 9b261f52f0
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GPG key ID: 4AEE18F83AFDEB23
14 changed files with 184 additions and 45 deletions
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37
routers/user/auth.go
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@ -24,6 +24,7 @@ import (
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/web"
"code.gitea.io/gitea/modules/web/middleware"
"code.gitea.io/gitea/routers/utils"
"code.gitea.io/gitea/services/externalaccount"
"code.gitea.io/gitea/services/mailer"
@ -64,8 +65,8 @@ func AutoSignIn(ctx *context.Context) (bool, error) {
defer func() {
if !isSucceed {
log.Trace("auto-login cookie cleared: %s", uname)
ctx.SetCookie(setting.CookieUserName, "", -1, setting.AppSubURL, setting.SessionConfig.Domain, setting.SessionConfig.Secure, true)
ctx.SetCookie(setting.CookieRememberName, "", -1, setting.AppSubURL, setting.SessionConfig.Domain, setting.SessionConfig.Secure, true)
ctx.DeleteCookie(setting.CookieUserName)
ctx.DeleteCookie(setting.CookieRememberName)
}
}()
@ -95,7 +96,7 @@ func AutoSignIn(ctx *context.Context) (bool, error) {
return false, err
}
ctx.SetCookie(setting.CSRFCookieName, "", -1, setting.AppSubURL, setting.SessionConfig.Domain, setting.SessionConfig.Secure, true)
middleware.DeleteCSRFCookie(ctx.Resp)
return true, nil
}
@ -109,13 +110,13 @@ func checkAutoLogin(ctx *context.Context) bool {
redirectTo := ctx.Query("redirect_to")
if len(redirectTo) > 0 {
ctx.SetCookie("redirect_to", redirectTo, 0, setting.AppSubURL, "", setting.SessionConfig.Secure, true)
middleware.SetRedirectToCookie(ctx.Resp, redirectTo)
} else {
redirectTo = ctx.GetCookie("redirect_to")
}
if isSucceed {
ctx.SetCookie("redirect_to", "", -1, setting.AppSubURL, "", setting.SessionConfig.Secure, true)
middleware.DeleteRedirectToCookie(ctx.Resp)
ctx.RedirectToFirst(redirectTo, setting.AppSubURL+string(setting.LandingPageURL))
return true
}
@ -497,9 +498,9 @@ func handleSignIn(ctx *context.Context, u *models.User, remember bool) {
func handleSignInFull(ctx *context.Context, u *models.User, remember bool, obeyRedirect bool) string {
if remember {
days := 86400 * setting.LogInRememberDays
ctx.SetCookie(setting.CookieUserName, u.Name, days, setting.AppSubURL, setting.SessionConfig.Domain, setting.SessionConfig.Secure, true)
ctx.SetCookie(setting.CookieUserName, u.Name, days)
ctx.SetSuperSecureCookie(base.EncodeMD5(u.Rands+u.Passwd),
setting.CookieRememberName, u.Name, days, setting.AppSubURL, setting.SessionConfig.Domain, setting.SessionConfig.Secure, true)
setting.CookieRememberName, u.Name, days)
}
_ = ctx.Session.Delete("openid_verified_uri")
@ -530,10 +531,10 @@ func handleSignInFull(ctx *context.Context, u *models.User, remember bool, obeyR
}
}
ctx.SetCookie("lang", u.Language, nil, setting.AppSubURL, setting.SessionConfig.Domain, setting.SessionConfig.Secure, true)
middleware.SetLocaleCookie(ctx.Resp, u.Language, 0)
// Clear whatever CSRF has right now, force to generate a new one
ctx.SetCookie(setting.CSRFCookieName, "", -1, setting.AppSubURL, setting.SessionConfig.Domain, setting.SessionConfig.Secure, true)
middleware.DeleteCSRFCookie(ctx.Resp)
// Register last login
u.SetLastLogin()
@ -543,7 +544,7 @@ func handleSignInFull(ctx *context.Context, u *models.User, remember bool, obeyR
}
if redirectTo := ctx.GetCookie("redirect_to"); len(redirectTo) > 0 && !utils.IsExternalURL(redirectTo) {
ctx.SetCookie("redirect_to", "", -1, setting.AppSubURL, "", setting.SessionConfig.Secure, true)
middleware.DeleteRedirectToCookie(ctx.Resp)
if obeyRedirect {
ctx.RedirectToFirst(redirectTo)
}
@ -649,7 +650,7 @@ func handleOAuth2SignIn(u *models.User, gothUser goth.User, ctx *context.Context
}
// Clear whatever CSRF has right now, force to generate a new one
ctx.SetCookie(setting.CSRFCookieName, "", -1, setting.AppSubURL, setting.SessionConfig.Domain, setting.SessionConfig.Secure, true)
middleware.DeleteCSRFCookie(ctx.Resp)
// Register last login
u.SetLastLogin()
@ -664,7 +665,7 @@ func handleOAuth2SignIn(u *models.User, gothUser goth.User, ctx *context.Context
}
if redirectTo := ctx.GetCookie("redirect_to"); len(redirectTo) > 0 {
ctx.SetCookie("redirect_to", "", -1, setting.AppSubURL, "", setting.SessionConfig.Secure, true)
middleware.DeleteRedirectToCookie(ctx.Resp)
ctx.RedirectToFirst(redirectTo)
return
}
@ -1042,11 +1043,11 @@ func LinkAccountPostRegister(ctx *context.Context) {
func HandleSignOut(ctx *context.Context) {
_ = ctx.Session.Flush()
_ = ctx.Session.Destroy(ctx.Resp, ctx.Req)
ctx.SetCookie(setting.CookieUserName, "", -1, setting.AppSubURL, setting.SessionConfig.Domain, setting.SessionConfig.Secure, true)
ctx.SetCookie(setting.CookieRememberName, "", -1, setting.AppSubURL, setting.SessionConfig.Domain, setting.SessionConfig.Secure, true)
ctx.SetCookie(setting.CSRFCookieName, "", -1, setting.AppSubURL, setting.SessionConfig.Domain, setting.SessionConfig.Secure, true)
ctx.SetCookie("lang", "", -1, setting.AppSubURL, setting.SessionConfig.Domain, setting.SessionConfig.Secure, true) // Setting the lang cookie will trigger the middleware to reset the language ot previous state.
ctx.SetCookie("redirect_to", "", -1, setting.AppSubURL) // logout default should set redirect to to default
ctx.DeleteCookie(setting.CookieUserName)
ctx.DeleteCookie(setting.CookieRememberName)
middleware.DeleteCSRFCookie(ctx.Resp)
middleware.DeleteLocaleCookie(ctx.Resp)
middleware.DeleteRedirectToCookie(ctx.Resp)
}
// SignOut sign out from login status
@ -1623,7 +1624,7 @@ func MustChangePasswordPost(ctx *context.Context) {
log.Trace("User updated password: %s", u.Name)
if redirectTo := ctx.GetCookie("redirect_to"); len(redirectTo) > 0 && !utils.IsExternalURL(redirectTo) {
ctx.SetCookie("redirect_to", "", -1, setting.AppSubURL)
middleware.DeleteRedirectToCookie(ctx.Resp)
ctx.RedirectToFirst(redirectTo)
return
}