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// Copyright 2018 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 setting
import (
"errors"
"net/http"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/web"
"code.gitea.io/gitea/services/forms"
"github.com/tstranex/u2f"
)
// U2FRegister initializes the u2f registration procedure
func U2FRegister(ctx *context.Context) {
form := web.GetForm(ctx).(*forms.U2FRegistrationForm)
if form.Name == "" {
ctx.Error(http.StatusConflict)
return
}
challenge, err := u2f.NewChallenge(setting.U2F.AppID, setting.U2F.TrustedFacets)
if err != nil {
ctx.ServerError("NewChallenge", err)
return
}
if err := ctx.Session.Set("u2fChallenge", challenge); err != nil {
ctx.ServerError("Unable to set session key for u2fChallenge", err)
return
}
regs, err := models.GetU2FRegistrationsByUID(ctx.User.ID)
if err != nil {
ctx.ServerError("GetU2FRegistrationsByUID", err)
return
}
for _, reg := range regs {
if reg.Name == form.Name {
ctx.Error(http.StatusConflict, "Name already taken")
return
}
}
if err := ctx.Session.Set("u2fName", form.Name); err != nil {
ctx.ServerError("Unable to set session key for u2fName", err)
return
}
// 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)
}
ctx.JSON(http.StatusOK, u2f.NewWebRegisterRequest(challenge, regs.ToRegistrations()))
}
// U2FRegisterPost receives the response of the security key
func U2FRegisterPost(ctx *context.Context) {
response := web.GetForm(ctx).(*u2f.RegisterResponse)
challSess := ctx.Session.Get("u2fChallenge")
u2fName := ctx.Session.Get("u2fName")
if challSess == nil || u2fName == nil {
ctx.ServerError("U2FRegisterPost", errors.New("not in U2F session"))
return
}
challenge := challSess.(*u2f.Challenge)
name := u2fName.(string)
config := &u2f.Config{
// Chrome 66+ doesn't return the device's attestation
// certificate by default.
SkipAttestationVerify: true,
}
reg, err := u2f.Register(*response, *challenge, config)
if err != nil {
ctx.ServerError("u2f.Register", err)
return
}
if _, err = models.CreateRegistration(ctx.User, name, reg); err != nil {
ctx.ServerError("u2f.Register", err)
return
}
ctx.Status(200)
}
// U2FDelete deletes an security key by id
func U2FDelete(ctx *context.Context) {
form := web.GetForm(ctx).(*forms.U2FDeleteForm)
reg, err := models.GetU2FRegistrationByID(form.ID)
if err != nil {
if models.IsErrU2FRegistrationNotExist(err) {
ctx.Status(200)
return
}
ctx.ServerError("GetU2FRegistrationByID", err)
return
}
if reg.UserID != ctx.User.ID {
ctx.Status(401)
return
}
if err := models.DeleteRegistration(reg); err != nil {
ctx.ServerError("DeleteRegistration", err)
return
}
ctx.JSON(http.StatusOK, map[string]interface{}{
"redirect": setting.AppSubURL + "/user/settings/security",
})
}
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