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forgejo/routers/web/user/setting/security/2fa.go

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// Copyright 2014 The Gogs Authors. All rights reserved.
// Copyright 2018 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
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package security
import (
"bytes"
"encoding/base64"
"html/template"
"image/png"
"net/http"
"strings"
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"code.gitea.io/gitea/models/auth"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
Move macaron to chi (#14293) Use [chi](https://github.com/go-chi/chi) instead of the forked [macaron](https://gitea.com/macaron/macaron). Since macaron and chi have conflicts with session share, this big PR becomes a have-to thing. According my previous idea, we can replace macaron step by step but I'm wrong. :( Below is a list of big changes on this PR. - [x] Define `context.ResponseWriter` interface with an implementation `context.Response`. - [x] Use chi instead of macaron, and also a customize `Route` to wrap chi so that the router usage is similar as before. - [x] Create different routers for `web`, `api`, `internal` and `install` so that the codes will be more clear and no magic . - [x] Use https://github.com/unrolled/render instead of macaron's internal render - [x] Use https://github.com/NYTimes/gziphandler instead of https://gitea.com/macaron/gzip - [x] Use https://gitea.com/go-chi/session which is a modified version of https://gitea.com/macaron/session and removed `nodb` support since it will not be maintained. **BREAK** - [x] Use https://gitea.com/go-chi/captcha which is a modified version of https://gitea.com/macaron/captcha - [x] Use https://gitea.com/go-chi/cache which is a modified version of https://gitea.com/macaron/cache - [x] Use https://gitea.com/go-chi/binding which is a modified version of https://gitea.com/macaron/binding - [x] Use https://github.com/go-chi/cors instead of https://gitea.com/macaron/cors - [x] Dropped https://gitea.com/macaron/i18n and make a new one in `code.gitea.io/gitea/modules/translation` - [x] Move validation form structs from `code.gitea.io/gitea/modules/auth` to `code.gitea.io/gitea/modules/forms` to avoid dependency cycle. - [x] Removed macaron log service because it's not need any more. **BREAK** - [x] All form structs have to be get by `web.GetForm(ctx)` in the route function but not as a function parameter on routes definition. - [x] Move Git HTTP protocol implementation to use routers directly. - [x] Fix the problem that chi routes don't support trailing slash but macaron did. - [x] `/api/v1/swagger` now will be redirect to `/api/swagger` but not render directly so that `APIContext` will not create a html render. Notices: - Chi router don't support request with trailing slash - Integration test `TestUserHeatmap` maybe mysql version related. It's failed on my macOS(mysql 5.7.29 installed via brew) but succeed on CI. Co-authored-by: 6543 <6543@obermui.de>
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"code.gitea.io/gitea/modules/web"
"code.gitea.io/gitea/services/context"
"code.gitea.io/gitea/services/forms"
"github.com/pquerna/otp"
"github.com/pquerna/otp/totp"
)
// RegenerateScratchTwoFactor regenerates the user's 2FA scratch code.
func RegenerateScratchTwoFactor(ctx *context.Context) {
ctx.Data["Title"] = ctx.Tr("settings")
ctx.Data["PageIsSettingsSecurity"] = true
t, err := auth.GetTwoFactorByUID(ctx, ctx.Doer.ID)
if err != nil {
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if auth.IsErrTwoFactorNotEnrolled(err) {
ctx.Flash.Error(ctx.Tr("settings.twofa_not_enrolled"))
ctx.Redirect(setting.AppSubURL + "/user/settings/security")
}
ctx.ServerError("SettingsTwoFactor: Failed to GetTwoFactorByUID", err)
return
}
token, err := t.GenerateScratchToken()
if err != nil {
ctx.ServerError("SettingsTwoFactor: Failed to GenerateScratchToken", err)
return
}
if err = auth.UpdateTwoFactor(ctx, t); err != nil {
ctx.ServerError("SettingsTwoFactor: Failed to UpdateTwoFactor", err)
return
}
ctx.Flash.Success(ctx.Tr("settings.twofa_scratch_token_regenerated", token))
ctx.Redirect(setting.AppSubURL + "/user/settings/security")
}
// DisableTwoFactor deletes the user's 2FA settings.
func DisableTwoFactor(ctx *context.Context) {
ctx.Data["Title"] = ctx.Tr("settings")
ctx.Data["PageIsSettingsSecurity"] = true
t, err := auth.GetTwoFactorByUID(ctx, ctx.Doer.ID)
if err != nil {
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if auth.IsErrTwoFactorNotEnrolled(err) {
ctx.Flash.Error(ctx.Tr("settings.twofa_not_enrolled"))
ctx.Redirect(setting.AppSubURL + "/user/settings/security")
}
ctx.ServerError("SettingsTwoFactor: Failed to GetTwoFactorByUID", err)
return
}
if err = auth.DeleteTwoFactorByID(ctx, t.ID, ctx.Doer.ID); err != nil {
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if auth.IsErrTwoFactorNotEnrolled(err) {
// There is a potential DB race here - we must have been disabled by another request in the intervening period
ctx.Flash.Success(ctx.Tr("settings.twofa_disabled"))
ctx.Redirect(setting.AppSubURL + "/user/settings/security")
}
ctx.ServerError("SettingsTwoFactor: Failed to DeleteTwoFactorByID", err)
return
}
ctx.Flash.Success(ctx.Tr("settings.twofa_disabled"))
ctx.Redirect(setting.AppSubURL + "/user/settings/security")
}
func twofaGenerateSecretAndQr(ctx *context.Context) bool {
var otpKey *otp.Key
var err error
uri := ctx.Session.Get("twofaUri")
if uri != nil {
otpKey, err = otp.NewKeyFromURL(uri.(string))
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if err != nil {
ctx.ServerError("SettingsTwoFactor: Failed NewKeyFromURL: ", err)
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return false
}
}
// Filter unsafe character ':' in issuer
issuer := strings.ReplaceAll(setting.AppName+" ("+setting.Domain+")", ":", "")
if otpKey == nil {
otpKey, err = totp.Generate(totp.GenerateOpts{
SecretSize: 40,
Issuer: issuer,
AccountName: ctx.Doer.Name,
})
if err != nil {
ctx.ServerError("SettingsTwoFactor: totpGenerate Failed", err)
return false
}
}
ctx.Data["TwofaSecret"] = otpKey.Secret()
img, err := otpKey.Image(320, 240)
if err != nil {
ctx.ServerError("SettingsTwoFactor: otpKey image generation failed", err)
return false
}
var imgBytes bytes.Buffer
if err = png.Encode(&imgBytes, img); err != nil {
ctx.ServerError("SettingsTwoFactor: otpKey png encoding failed", err)
return false
}
ctx.Data["QrUri"] = template.URL("data:image/png;base64," + base64.StdEncoding.EncodeToString(imgBytes.Bytes()))
if err := ctx.Session.Set("twofaSecret", otpKey.Secret()); err != nil {
ctx.ServerError("SettingsTwoFactor: Failed to set session for twofaSecret", err)
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return false
}
if err := ctx.Session.Set("twofaUri", otpKey.String()); err != nil {
ctx.ServerError("SettingsTwoFactor: Failed to set session for twofaUri", err)
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return false
}
// Here we're just going to try to release the session early
if err := ctx.Session.Release(); err != nil {
// we'll tolerate errors here as they *should* get saved elsewhere
log.Error("Unable to save changes to the session: %v", err)
}
return true
}
// EnrollTwoFactor shows the page where the user can enroll into 2FA.
func EnrollTwoFactor(ctx *context.Context) {
ctx.Data["Title"] = ctx.Tr("settings")
ctx.Data["PageIsSettingsSecurity"] = true
t, err := auth.GetTwoFactorByUID(ctx, ctx.Doer.ID)
if t != nil {
// already enrolled - we should redirect back!
log.Warn("Trying to re-enroll %-v in twofa when already enrolled", ctx.Doer)
ctx.Flash.Error(ctx.Tr("settings.twofa_is_enrolled"))
ctx.Redirect(setting.AppSubURL + "/user/settings/security")
return
}
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if err != nil && !auth.IsErrTwoFactorNotEnrolled(err) {
ctx.ServerError("SettingsTwoFactor: GetTwoFactorByUID", err)
return
}
if !twofaGenerateSecretAndQr(ctx) {
return
}
ctx.HTML(http.StatusOK, tplSettingsTwofaEnroll)
}
// EnrollTwoFactorPost handles enrolling the user into 2FA.
Move macaron to chi (#14293) Use [chi](https://github.com/go-chi/chi) instead of the forked [macaron](https://gitea.com/macaron/macaron). Since macaron and chi have conflicts with session share, this big PR becomes a have-to thing. According my previous idea, we can replace macaron step by step but I'm wrong. :( Below is a list of big changes on this PR. - [x] Define `context.ResponseWriter` interface with an implementation `context.Response`. - [x] Use chi instead of macaron, and also a customize `Route` to wrap chi so that the router usage is similar as before. - [x] Create different routers for `web`, `api`, `internal` and `install` so that the codes will be more clear and no magic . - [x] Use https://github.com/unrolled/render instead of macaron's internal render - [x] Use https://github.com/NYTimes/gziphandler instead of https://gitea.com/macaron/gzip - [x] Use https://gitea.com/go-chi/session which is a modified version of https://gitea.com/macaron/session and removed `nodb` support since it will not be maintained. **BREAK** - [x] Use https://gitea.com/go-chi/captcha which is a modified version of https://gitea.com/macaron/captcha - [x] Use https://gitea.com/go-chi/cache which is a modified version of https://gitea.com/macaron/cache - [x] Use https://gitea.com/go-chi/binding which is a modified version of https://gitea.com/macaron/binding - [x] Use https://github.com/go-chi/cors instead of https://gitea.com/macaron/cors - [x] Dropped https://gitea.com/macaron/i18n and make a new one in `code.gitea.io/gitea/modules/translation` - [x] Move validation form structs from `code.gitea.io/gitea/modules/auth` to `code.gitea.io/gitea/modules/forms` to avoid dependency cycle. - [x] Removed macaron log service because it's not need any more. **BREAK** - [x] All form structs have to be get by `web.GetForm(ctx)` in the route function but not as a function parameter on routes definition. - [x] Move Git HTTP protocol implementation to use routers directly. - [x] Fix the problem that chi routes don't support trailing slash but macaron did. - [x] `/api/v1/swagger` now will be redirect to `/api/swagger` but not render directly so that `APIContext` will not create a html render. Notices: - Chi router don't support request with trailing slash - Integration test `TestUserHeatmap` maybe mysql version related. It's failed on my macOS(mysql 5.7.29 installed via brew) but succeed on CI. Co-authored-by: 6543 <6543@obermui.de>
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func EnrollTwoFactorPost(ctx *context.Context) {
form := web.GetForm(ctx).(*forms.TwoFactorAuthForm)
ctx.Data["Title"] = ctx.Tr("settings")
ctx.Data["PageIsSettingsSecurity"] = true
t, err := auth.GetTwoFactorByUID(ctx, ctx.Doer.ID)
if t != nil {
// already enrolled
ctx.Flash.Error(ctx.Tr("settings.twofa_is_enrolled"))
ctx.Redirect(setting.AppSubURL + "/user/settings/security")
return
}
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if err != nil && !auth.IsErrTwoFactorNotEnrolled(err) {
ctx.ServerError("SettingsTwoFactor: Failed to check if already enrolled with GetTwoFactorByUID", err)
return
}
if ctx.HasError() {
if !twofaGenerateSecretAndQr(ctx) {
return
}
ctx.HTML(http.StatusOK, tplSettingsTwofaEnroll)
return
}
secretRaw := ctx.Session.Get("twofaSecret")
if secretRaw == nil {
ctx.Flash.Error(ctx.Tr("settings.twofa_failed_get_secret"))
ctx.Redirect(setting.AppSubURL + "/user/settings/security/two_factor/enroll")
return
}
secret := secretRaw.(string)
if !totp.Validate(form.Passcode, secret) {
if !twofaGenerateSecretAndQr(ctx) {
return
}
ctx.Flash.Error(ctx.Tr("settings.passcode_invalid"))
ctx.Redirect(setting.AppSubURL + "/user/settings/security/two_factor/enroll")
return
}
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t = &auth.TwoFactor{
UID: ctx.Doer.ID,
}
err = t.SetSecret(secret)
if err != nil {
ctx.ServerError("SettingsTwoFactor: Failed to set secret", err)
return
}
token, err := t.GenerateScratchToken()
if err != nil {
ctx.ServerError("SettingsTwoFactor: Failed to generate scratch token", err)
return
}
// Now we have to delete the secrets - because if we fail to insert then it's highly likely that they have already been used
// If we can detect the unique constraint failure below we can move this to after the NewTwoFactor
if err := ctx.Session.Delete("twofaSecret"); err != nil {
// tolerate this failure - it's more important to continue
log.Error("Unable to delete twofaSecret from the session: Error: %v", err)
}
if err := ctx.Session.Delete("twofaUri"); err != nil {
// tolerate this failure - it's more important to continue
log.Error("Unable to delete twofaUri from the session: Error: %v", err)
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}
if err := ctx.Session.Release(); err != nil {
// tolerate this failure - it's more important to continue
log.Error("Unable to save changes to the session: %v", err)
}
if err = auth.NewTwoFactor(ctx, t); err != nil {
// FIXME: We need to handle a unique constraint fail here it's entirely possible that another request has beaten us.
// If there is a unique constraint fail we should just tolerate the error
ctx.ServerError("SettingsTwoFactor: Failed to save two factor", err)
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return
}
ctx.Flash.Success(ctx.Tr("settings.twofa_enrolled", token))
ctx.Redirect(setting.AppSubURL + "/user/settings/security")
}