mirror of
https://github.com/go-gitea/gitea
synced 2024-12-19 23:14:10 +01:00
136 lines
3.5 KiB
Go
136 lines
3.5 KiB
Go
// Copyright 2017 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package auth
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import (
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"errors"
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"net/http"
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"code.gitea.io/gitea/models/auth"
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user_model "code.gitea.io/gitea/models/user"
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"code.gitea.io/gitea/modules/base"
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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/externalaccount"
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"github.com/tstranex/u2f"
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)
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var tplU2F base.TplName = "user/auth/u2f"
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// U2F shows the U2F login page
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func U2F(ctx *context.Context) {
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ctx.Data["Title"] = ctx.Tr("twofa")
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ctx.Data["RequireU2F"] = true
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// Check auto-login.
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if checkAutoLogin(ctx) {
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return
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}
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// Ensure user is in a 2FA session.
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if ctx.Session.Get("twofaUid") == nil {
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ctx.ServerError("UserSignIn", errors.New("not in U2F session"))
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return
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}
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// See whether TOTP is also available.
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if ctx.Session.Get("totpEnrolled") != nil {
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ctx.Data["TOTPEnrolled"] = true
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}
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ctx.HTML(http.StatusOK, tplU2F)
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}
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// U2FChallenge submits a sign challenge to the browser
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func U2FChallenge(ctx *context.Context) {
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// Ensure user is in a U2F session.
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idSess := ctx.Session.Get("twofaUid")
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if idSess == nil {
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ctx.ServerError("UserSignIn", errors.New("not in U2F session"))
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return
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}
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id := idSess.(int64)
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regs, err := auth.GetU2FRegistrationsByUID(id)
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if err != nil {
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ctx.ServerError("UserSignIn", err)
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return
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}
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if len(regs) == 0 {
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ctx.ServerError("UserSignIn", errors.New("no device registered"))
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return
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}
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challenge, err := u2f.NewChallenge(setting.U2F.AppID, setting.U2F.TrustedFacets)
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if err != nil {
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ctx.ServerError("u2f.NewChallenge", err)
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return
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}
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if err := ctx.Session.Set("u2fChallenge", challenge); err != nil {
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ctx.ServerError("UserSignIn: unable to set u2fChallenge in session", err)
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return
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}
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if err := ctx.Session.Release(); err != nil {
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ctx.ServerError("UserSignIn: unable to store session", err)
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}
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ctx.JSON(http.StatusOK, challenge.SignRequest(regs.ToRegistrations()))
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}
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// U2FSign authenticates the user by signResp
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func U2FSign(ctx *context.Context) {
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signResp := web.GetForm(ctx).(*u2f.SignResponse)
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challSess := ctx.Session.Get("u2fChallenge")
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idSess := ctx.Session.Get("twofaUid")
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if challSess == nil || idSess == nil {
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ctx.ServerError("UserSignIn", errors.New("not in U2F session"))
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return
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}
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challenge := challSess.(*u2f.Challenge)
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id := idSess.(int64)
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regs, err := auth.GetU2FRegistrationsByUID(id)
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if err != nil {
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ctx.ServerError("UserSignIn", err)
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return
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}
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for _, reg := range regs {
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r, err := reg.Parse()
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if err != nil {
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log.Error("parsing u2f registration: %v", err)
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continue
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}
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newCounter, authErr := r.Authenticate(*signResp, *challenge, reg.Counter)
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if authErr == nil {
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reg.Counter = newCounter
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user, err := user_model.GetUserByID(id)
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if err != nil {
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ctx.ServerError("UserSignIn", err)
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return
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}
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remember := ctx.Session.Get("twofaRemember").(bool)
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if err := reg.UpdateCounter(); err != nil {
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ctx.ServerError("UserSignIn", err)
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return
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}
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if ctx.Session.Get("linkAccount") != nil {
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if err := externalaccount.LinkAccountFromStore(ctx.Session, user); err != nil {
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ctx.ServerError("UserSignIn", err)
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return
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}
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}
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redirect := handleSignInFull(ctx, user, remember, false)
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if ctx.Written() {
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return
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}
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if redirect == "" {
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redirect = setting.AppSubURL + "/"
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}
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ctx.PlainText(http.StatusOK, redirect)
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return
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}
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}
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ctx.Error(http.StatusUnauthorized)
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}
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