mirror of
https://codeberg.org/forgejo/forgejo.git
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120 lines
3.4 KiB
Go
120 lines
3.4 KiB
Go
// Copyright 2018 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package security
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import (
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"errors"
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"net/http"
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"strconv"
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"time"
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"code.gitea.io/gitea/models/auth"
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wa "code.gitea.io/gitea/modules/auth/webauthn"
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"code.gitea.io/gitea/modules/context"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/web"
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"code.gitea.io/gitea/services/forms"
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"github.com/go-webauthn/webauthn/protocol"
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"github.com/go-webauthn/webauthn/webauthn"
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)
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// WebAuthnRegister initializes the webauthn registration procedure
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func WebAuthnRegister(ctx *context.Context) {
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form := web.GetForm(ctx).(*forms.WebauthnRegistrationForm)
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if form.Name == "" {
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// Set name to the hexadecimal of the current time
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form.Name = strconv.FormatInt(time.Now().UnixNano(), 16)
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}
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cred, err := auth.GetWebAuthnCredentialByName(ctx, ctx.Doer.ID, form.Name)
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if err != nil && !auth.IsErrWebAuthnCredentialNotExist(err) {
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ctx.ServerError("GetWebAuthnCredentialsByUID", err)
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return
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}
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if cred != nil {
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ctx.Error(http.StatusConflict, "Name already taken")
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return
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}
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_ = ctx.Session.Delete("webauthnRegistration")
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if err := ctx.Session.Set("webauthnName", form.Name); err != nil {
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ctx.ServerError("Unable to set session key for webauthnName", err)
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return
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}
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credentialOptions, sessionData, err := wa.WebAuthn.BeginRegistration((*wa.User)(ctx.Doer))
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if err != nil {
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ctx.ServerError("Unable to BeginRegistration", err)
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return
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}
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// Save the session data as marshaled JSON
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if err = ctx.Session.Set("webauthnRegistration", sessionData); err != nil {
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ctx.ServerError("Unable to set session", err)
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return
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}
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ctx.JSON(http.StatusOK, credentialOptions)
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}
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// WebauthnRegisterPost receives the response of the security key
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func WebauthnRegisterPost(ctx *context.Context) {
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name, ok := ctx.Session.Get("webauthnName").(string)
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if !ok || name == "" {
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ctx.ServerError("Get webauthnName", errors.New("no webauthnName"))
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return
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}
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// Load the session data
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sessionData, ok := ctx.Session.Get("webauthnRegistration").(*webauthn.SessionData)
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if !ok || sessionData == nil {
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ctx.ServerError("Get registration", errors.New("no registration"))
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return
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}
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defer func() {
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_ = ctx.Session.Delete("webauthnRegistration")
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}()
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// Verify that the challenge succeeded
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cred, err := wa.WebAuthn.FinishRegistration((*wa.User)(ctx.Doer), *sessionData, ctx.Req)
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if err != nil {
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if pErr, ok := err.(*protocol.Error); ok {
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log.Error("Unable to finish registration due to error: %v\nDevInfo: %s", pErr, pErr.DevInfo)
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}
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ctx.ServerError("CreateCredential", err)
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return
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}
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dbCred, err := auth.GetWebAuthnCredentialByName(ctx, ctx.Doer.ID, name)
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if err != nil && !auth.IsErrWebAuthnCredentialNotExist(err) {
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ctx.ServerError("GetWebAuthnCredentialsByUID", err)
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return
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}
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if dbCred != nil {
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ctx.Error(http.StatusConflict, "Name already taken")
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return
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}
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// Create the credential
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_, err = auth.CreateCredential(ctx, ctx.Doer.ID, name, cred)
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if err != nil {
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ctx.ServerError("CreateCredential", err)
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return
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}
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_ = ctx.Session.Delete("webauthnName")
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ctx.JSON(http.StatusCreated, cred)
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}
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// WebauthnDelete deletes an security key by id
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func WebauthnDelete(ctx *context.Context) {
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form := web.GetForm(ctx).(*forms.WebauthnDeleteForm)
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if _, err := auth.DeleteCredential(ctx, form.ID, ctx.Doer.ID); err != nil {
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ctx.ServerError("GetWebAuthnCredentialByID", err)
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return
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}
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ctx.JSONRedirect(setting.AppSubURL + "/user/settings/security")
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}
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