forgejo-federation/routers/web/user/setting/security/webauthn.go
Lunny Xiao 35c3553870
Support webauthn (#17957)
Migrate from U2F to Webauthn

Co-authored-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
2022-01-14 16:03:31 +01:00

119 lines
3.4 KiB
Go

// 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 security
import (
"errors"
"net/http"
"code.gitea.io/gitea/models/auth"
wa "code.gitea.io/gitea/modules/auth/webauthn"
"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/duo-labs/webauthn/protocol"
"github.com/duo-labs/webauthn/webauthn"
)
// WebAuthnRegister initializes the webauthn registration procedure
func WebAuthnRegister(ctx *context.Context) {
form := web.GetForm(ctx).(*forms.WebauthnRegistrationForm)
if form.Name == "" {
ctx.Error(http.StatusConflict)
return
}
cred, err := auth.GetWebAuthnCredentialByName(ctx.User.ID, form.Name)
if err != nil && !auth.IsErrWebAuthnCredentialNotExist(err) {
ctx.ServerError("GetWebAuthnCredentialsByUID", err)
return
}
if cred != nil {
ctx.Error(http.StatusConflict, "Name already taken")
return
}
_ = ctx.Session.Delete("registration")
if err := ctx.Session.Set("WebauthnName", form.Name); err != nil {
ctx.ServerError("Unable to set session key for WebauthnName", err)
return
}
credentialOptions, sessionData, err := wa.WebAuthn.BeginRegistration((*wa.User)(ctx.User))
if err != nil {
ctx.ServerError("Unable to BeginRegistration", err)
return
}
// Save the session data as marshaled JSON
if err = ctx.Session.Set("registration", sessionData); err != nil {
ctx.ServerError("Unable to set session", err)
return
}
ctx.JSON(http.StatusOK, credentialOptions)
}
// WebauthnRegisterPost receives the response of the security key
func WebauthnRegisterPost(ctx *context.Context) {
name, ok := ctx.Session.Get("WebauthnName").(string)
if !ok || name == "" {
ctx.ServerError("Get WebauthnName", errors.New("no WebauthnName"))
return
}
// Load the session data
sessionData, ok := ctx.Session.Get("registration").(*webauthn.SessionData)
if !ok || sessionData == nil {
ctx.ServerError("Get registration", errors.New("no registration"))
return
}
defer func() {
_ = ctx.Session.Delete("registration")
}()
// Verify that the challenge succeeded
cred, err := wa.WebAuthn.FinishRegistration((*wa.User)(ctx.User), *sessionData, ctx.Req)
if err != nil {
if pErr, ok := err.(*protocol.Error); ok {
log.Error("Unable to finish registration due to error: %v\nDevInfo: %s", pErr, pErr.DevInfo)
}
ctx.ServerError("CreateCredential", err)
return
}
dbCred, err := auth.GetWebAuthnCredentialByName(ctx.User.ID, name)
if err != nil && !auth.IsErrWebAuthnCredentialNotExist(err) {
ctx.ServerError("GetWebAuthnCredentialsByUID", err)
return
}
if dbCred != nil {
ctx.Error(http.StatusConflict, "Name already taken")
return
}
// Create the credential
_, err = auth.CreateCredential(ctx.User.ID, name, cred)
if err != nil {
ctx.ServerError("CreateCredential", err)
return
}
ctx.JSON(http.StatusCreated, cred)
}
// WebauthnDelete deletes an security key by id
func WebauthnDelete(ctx *context.Context) {
form := web.GetForm(ctx).(*forms.WebauthnDeleteForm)
if _, err := auth.DeleteCredential(form.ID, ctx.User.ID); err != nil {
ctx.ServerError("GetWebAuthnCredentialByID", err)
return
}
ctx.JSON(http.StatusOK, map[string]interface{}{
"redirect": setting.AppSubURL + "/user/settings/security",
})
}