Files
forge/routers/web/auth/2fa.go
zeekayandHanzo Dev 9a07b4d089 legal: Hanzo AI, Inc. copyright above the upstream notices
2978 files. The fork is 2026-07-15 (rebrand: gitea.dev -> github.com/hanzoai/git),
so 2026 is the year, and "Copyright 2026 Hanzo AI, Inc." was already the form
used by the handful of files that had ours.

Shape is now:

	// Copyright 2026 Hanzo AI, Inc. All rights reserved.
	// Copyright 2015 The Gogs Authors. All rights reserved.
	// Copyright 2019 The Gitea Authors. All rights reserved.
	// SPDX-License-Identifier: MIT

Ours on top, theirs retained verbatim. Retained because MIT requires it, and
separately because they are true — those authors did write that code.

Not renamed to "The Git Authors": Git is a different project under a different
license, and putting its name here would attribute this code to people who have
nothing to do with it. Adding our line is the fix; overwriting theirs would have
been both a licence violation and a false statement.

gofmt still reports import-order drift in some of these files. It predates this
change (verified against a stash) and is left alone rather than burying a
one-line-per-file legal change under 3000 files of unrelated reordering.

Build clean.

Co-authored-by: Hanzo Dev <[email protected]>
2026-07-27 13:49:52 -07:00

160 lines
4.0 KiB
Go

// Copyright 2026 Hanzo AI, Inc. All rights reserved.
// Copyright 2017 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package auth
import (
"errors"
"net/http"
"github.com/hanzoai/git/models/auth"
user_model "github.com/hanzoai/git/models/user"
"github.com/hanzoai/git/modules/session"
"github.com/hanzoai/git/modules/setting"
"github.com/hanzoai/git/modules/templates"
"github.com/hanzoai/git/modules/web"
"github.com/hanzoai/git/services/context"
"github.com/hanzoai/git/services/forms"
)
var (
tplTwofa templates.TplName = "user/auth/twofa"
tplTwofaScratch templates.TplName = "user/auth/twofa_scratch"
)
// TwoFactor shows the user a two-factor authentication page.
func TwoFactor(ctx *context.Context) {
ctx.Data["Title"] = ctx.Tr("twofa")
if performAutoLogin(ctx) {
return
}
// Ensure user is in a 2FA session.
if ctx.Session.Get("twofaUid") == nil {
ctx.ServerError("UserSignIn", errors.New("not in 2FA session"))
return
}
ctx.HTML(http.StatusOK, tplTwofa)
}
// TwoFactorPost validates a user's two-factor authentication token.
func TwoFactorPost(ctx *context.Context) {
form := web.GetForm(ctx).(*forms.TwoFactorAuthForm)
ctx.Data["Title"] = ctx.Tr("twofa")
// Ensure user is in a 2FA session.
idSess := ctx.Session.Get("twofaUid")
if idSess == nil {
ctx.ServerError("UserSignIn", errors.New("not in 2FA session"))
return
}
id := idSess.(int64)
twofa, err := auth.GetTwoFactorByUID(ctx, id)
if err != nil {
ctx.ServerError("UserSignIn", err)
return
}
// Validate the passcode and atomically consume it to prevent reuse/replay.
ok, err := twofa.ValidateAndConsumeTOTP(ctx, form.Passcode)
if err != nil {
ctx.ServerError("UserSignIn", err)
return
}
if ok {
remember := ctx.Session.Get("twofaRemember").(bool)
u, err := user_model.GetUserByID(ctx, id)
if err != nil {
ctx.ServerError("UserSignIn", err)
return
}
if ctx.Session.Get("linkAccount") != nil {
err = linkAccountFromContext(ctx, u)
if err != nil {
ctx.ServerError("UserSignIn", err)
return
}
}
_ = ctx.Session.Set(session.KeyUserHasTwoFactorAuth, true)
handleSignIn(ctx, u, remember)
return
}
ctx.RenderWithErrDeprecated(ctx.Tr("auth.twofa_passcode_incorrect"), tplTwofa, forms.TwoFactorAuthForm{})
}
// TwoFactorScratch shows the scratch code form for two-factor authentication.
func TwoFactorScratch(ctx *context.Context) {
ctx.Data["Title"] = ctx.Tr("twofa_scratch")
if performAutoLogin(ctx) {
return
}
// Ensure user is in a 2FA session.
if ctx.Session.Get("twofaUid") == nil {
ctx.ServerError("UserSignIn", errors.New("not in 2FA session"))
return
}
ctx.HTML(http.StatusOK, tplTwofaScratch)
}
// TwoFactorScratchPost validates and invalidates a user's two-factor scratch token.
func TwoFactorScratchPost(ctx *context.Context) {
form := web.GetForm(ctx).(*forms.TwoFactorScratchAuthForm)
ctx.Data["Title"] = ctx.Tr("twofa_scratch")
// Ensure user is in a 2FA session.
idSess := ctx.Session.Get("twofaUid")
if idSess == nil {
ctx.ServerError("UserSignIn", errors.New("not in 2FA session"))
return
}
id := idSess.(int64)
twofa, err := auth.GetTwoFactorByUID(ctx, id)
if err != nil {
ctx.ServerError("UserSignIn", err)
return
}
// Validate the passcode with the stored TOTP secret.
if twofa.VerifyScratchToken(form.Token) {
// Invalidate the scratch token.
_, err = twofa.GenerateScratchToken()
if err != nil {
ctx.ServerError("UserSignIn", err)
return
}
if err = auth.UpdateTwoFactor(ctx, twofa); err != nil {
ctx.ServerError("UserSignIn", err)
return
}
remember := ctx.Session.Get("twofaRemember").(bool)
u, err := user_model.GetUserByID(ctx, id)
if err != nil {
ctx.ServerError("UserSignIn", err)
return
}
handleSignInFull(ctx, u, remember)
if ctx.Written() {
return
}
ctx.Flash.Info(ctx.Tr("auth.twofa_scratch_used"))
ctx.Redirect(setting.AppSubURL + "/user/settings/security")
return
}
ctx.RenderWithErrDeprecated(ctx.Tr("auth.twofa_scratch_token_incorrect"), tplTwofaScratch, forms.TwoFactorScratchAuthForm{})
}