Merge pull request #303 from writeas/fix-oauth-account-creation

Respect registration config on OAuth signup flow
This commit is contained in:
Matt Baer 2020-04-22 13:49:52 -04:00 committed by GitHub
commit 99d86a7489
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GPG Key ID: 4AEE18F83AFDEB23
15 changed files with 238 additions and 78 deletions

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@ -1,5 +1,5 @@
/*
* Copyright © 2018-2019 A Bunch Tell LLC.
* Copyright © 2018-2020 A Bunch Tell LLC.
*
* This file is part of WriteFreely.
*
@ -168,11 +168,7 @@ func signupWithRegistration(app *App, signup userRegistration, w http.ResponseWr
// Log invite if needed
if signup.InviteCode != "" {
cu, err := app.db.GetUserForAuth(signup.Alias)
if err != nil {
return nil, err
}
err = app.db.CreateInvitedUser(signup.InviteCode, cu.ID)
err = app.db.CreateInvitedUser(signup.InviteCode, u.ID)
if err != nil {
return nil, err
}
@ -493,6 +489,9 @@ func login(app *App, w http.ResponseWriter, r *http.Request) error {
return impart.HTTPError{http.StatusPreconditionFailed, "This user never added a password or email address. Please contact us for help."}
}
}
if len(u.HashedPass) == 0 {
return impart.HTTPError{http.StatusUnauthorized, "This user never set a password. Perhaps try logging in via OAuth?"}
}
if !auth.Authenticated(u.HashedPass, []byte(signin.Pass)) {
return impart.HTTPError{http.StatusUnauthorized, "Incorrect password."}
}

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@ -132,8 +132,8 @@ type writestore interface {
GetIDForRemoteUser(context.Context, string, string, string) (int64, error)
RecordRemoteUserID(context.Context, int64, string, string, string, string) error
ValidateOAuthState(context.Context, string) (string, string, int64, error)
GenerateOAuthState(context.Context, string, string, int64) (string, error)
ValidateOAuthState(context.Context, string) (string, string, int64, string, error)
GenerateOAuthState(context.Context, string, string, int64, string) (string, error)
GetOauthAccounts(ctx context.Context, userID int64) ([]oauthAccountInfo, error)
RemoveOauth(ctx context.Context, userID int64, provider string, clientID string, remoteUserID string) error
@ -178,6 +178,7 @@ func (db *datastore) dateSub(l int, unit string) string {
return fmt.Sprintf("DATE_SUB(NOW(), INTERVAL %d %s)", l, unit)
}
// CreateUser creates a new user in the database from the given User, UPDATING it in the process with the user's ID.
func (db *datastore) CreateUser(cfg *config.Config, u *User, collectionTitle string) error {
if db.PostIDExists(u.Username) {
return impart.HTTPError{http.StatusConflict, "Invalid collection name."}
@ -2516,24 +2517,26 @@ func (db *datastore) GetCollectionLastPostTime(id int64) (*time.Time, error) {
return &t, nil
}
func (db *datastore) GenerateOAuthState(ctx context.Context, provider string, clientID string, attachUser int64) (string, error) {
func (db *datastore) GenerateOAuthState(ctx context.Context, provider string, clientID string, attachUser int64, inviteCode string) (string, error) {
state := store.Generate62RandomString(24)
attachUserVal := sql.NullInt64{Valid: attachUser > 0, Int64: attachUser}
_, err := db.ExecContext(ctx, "INSERT INTO oauth_client_states (state, provider, client_id, used, created_at, attach_user_id) VALUES (?, ?, ?, FALSE, "+db.now()+", ?)", state, provider, clientID, attachUserVal)
inviteCodeVal := sql.NullString{Valid: inviteCode != "", String: inviteCode}
_, err := db.ExecContext(ctx, "INSERT INTO oauth_client_states (state, provider, client_id, used, created_at, attach_user_id, invite_code) VALUES (?, ?, ?, FALSE, "+db.now()+", ?, ?)", state, provider, clientID, attachUserVal, inviteCodeVal)
if err != nil {
return "", fmt.Errorf("unable to record oauth client state: %w", err)
}
return state, nil
}
func (db *datastore) ValidateOAuthState(ctx context.Context, state string) (string, string, int64, error) {
func (db *datastore) ValidateOAuthState(ctx context.Context, state string) (string, string, int64, string, error) {
var provider string
var clientID string
var attachUserID sql.NullInt64
var inviteCode sql.NullString
err := wf_db.RunTransactionWithOptions(ctx, db.DB, &sql.TxOptions{}, func(ctx context.Context, tx *sql.Tx) error {
err := tx.
QueryRowContext(ctx, "SELECT provider, client_id, attach_user_id FROM oauth_client_states WHERE state = ? AND used = FALSE", state).
Scan(&provider, &clientID, &attachUserID)
QueryRowContext(ctx, "SELECT provider, client_id, attach_user_id, invite_code FROM oauth_client_states WHERE state = ? AND used = FALSE", state).
Scan(&provider, &clientID, &attachUserID, &inviteCode)
if err != nil {
return err
}
@ -2552,9 +2555,9 @@ func (db *datastore) ValidateOAuthState(ctx context.Context, state string) (stri
return nil
})
if err != nil {
return "", "", 0, nil
return "", "", 0, "", nil
}
return provider, clientID, attachUserID.Int64, nil
return provider, clientID, attachUserID.Int64, inviteCode.String, nil
}
func (db *datastore) RecordRemoteUserID(ctx context.Context, localUserID int64, remoteUserID, provider, clientID, accessToken string) error {

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@ -18,13 +18,13 @@ func TestOAuthDatastore(t *testing.T) {
driverName: "",
}
state, err := ds.GenerateOAuthState(ctx, "test", "development", 0)
state, err := ds.GenerateOAuthState(ctx, "test", "development", 0, "")
assert.NoError(t, err)
assert.Len(t, state, 24)
countRows(t, ctx, db, 1, "SELECT COUNT(*) FROM `oauth_client_states` WHERE `state` = ? AND `used` = false", state)
_, _, _, err = ds.ValidateOAuthState(ctx, state)
_, _, _, _, err = ds.ValidateOAuthState(ctx, state)
assert.NoError(t, err)
countRows(t, ctx, db, 1, "SELECT COUNT(*) FROM `oauth_client_states` WHERE `state` = ? AND `used` = true", state)

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@ -1,5 +1,5 @@
/*
* Copyright © 2019 A Bunch Tell LLC.
* Copyright © 2019-2020 A Bunch Tell LLC.
*
* This file is part of WriteFreely.
*
@ -42,6 +42,18 @@ func (i Invite) Expired() bool {
return i.Expires != nil && i.Expires.Before(time.Now())
}
func (i Invite) Active(db *datastore) bool {
if i.Expired() {
return false
}
if i.MaxUses.Valid && i.MaxUses.Int64 > 0 {
if c := db.GetUsersInvitedCount(i.ID); c >= i.MaxUses.Int64 {
return false
}
}
return true
}
func (i Invite) ExpiresFriendly() string {
return i.Expires.Format("January 2, 2006, 3:04 PM")
}
@ -161,9 +173,11 @@ func handleViewInvite(app *App, w http.ResponseWriter, r *http.Request) error {
Error string
Flashes []template.HTML
Invite string
OAuth *OAuthButtons
}{
StaticPage: pageForReq(app, r),
Invite: inviteCode,
OAuth: NewOAuthButtons(app.cfg),
}
if expired {

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@ -5,6 +5,7 @@
@import "post-temp";
@import "effects";
@import "admin";
@import "login";
@import "pages/error";
@import "lib/elements";
@import "lib/material";

45
less/login.less Normal file
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@ -0,0 +1,45 @@
/*
* Copyright © 2020 A Bunch Tell LLC.
*
* This file is part of WriteFreely.
*
* WriteFreely is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, included
* in the LICENSE file in this source code package.
*/
.row.signinbtns {
justify-content: space-evenly;
font-size: 1em;
margin-top: 2em;
margin-bottom: 1em;
.loginbtn {
height: 40px;
}
#writeas-login, #gitlab-login {
box-sizing: border-box;
font-size: 17px;
}
}
.or {
text-align: center;
margin-bottom: 3.5em;
p {
display: inline-block;
background-color: white;
padding: 0 1em;
}
hr {
margin-top: -1.6em;
margin-bottom: 0;
}
hr.short {
max-width: 30rem;
}
}

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@ -62,7 +62,8 @@ var migrations = []Migration{
New("support oauth", oauth), // V3 -> V4
New("support slack oauth", oauthSlack), // V4 -> v5
New("support ActivityPub mentions", supportActivityPubMentions), // V5 -> V6
New("support oauth attach", oauthAttach), // V6 -> V7 (v0.12.0)
New("support oauth attach", oauthAttach), // V6 -> V7
New("support oauth via invite", oauthInvites), // V7 -> V8 (v0.12.0)
}
// CurrentVer returns the current migration version the application is on

45
migrations/v8.go Normal file
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@ -0,0 +1,45 @@
/*
* Copyright © 2020 A Bunch Tell LLC.
*
* This file is part of WriteFreely.
*
* WriteFreely is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, included
* in the LICENSE file in this source code package.
*/
package migrations
import (
"context"
"database/sql"
wf_db "github.com/writeas/writefreely/db"
)
func oauthInvites(db *datastore) error {
dialect := wf_db.DialectMySQL
if db.driverName == driverSQLite {
dialect = wf_db.DialectSQLite
}
return wf_db.RunTransactionWithOptions(context.Background(), db.DB, &sql.TxOptions{}, func(ctx context.Context, tx *sql.Tx) error {
builders := []wf_db.SQLBuilder{
dialect.
AlterTable("oauth_client_states").
AddColumn(dialect.Column("invite_code", wf_db.ColumnTypeChar, wf_db.OptionalInt{
Set: true,
Value: 6,
}).SetNullable(true)),
}
for _, builder := range builders {
query, err := builder.ToSQL()
if err != nil {
return err
}
if _, err := tx.ExecContext(ctx, query); err != nil {
return err
}
}
return nil
})
}

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@ -1,3 +1,13 @@
/*
* Copyright © 2019-2020 A Bunch Tell LLC.
*
* This file is part of WriteFreely.
*
* WriteFreely is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, included
* in the LICENSE file in this source code package.
*/
package writefreely
import (
@ -15,10 +25,27 @@ import (
"github.com/gorilla/sessions"
"github.com/writeas/impart"
"github.com/writeas/web-core/log"
"github.com/writeas/writefreely/config"
)
// OAuthButtons holds display information for different OAuth providers we support.
type OAuthButtons struct {
SlackEnabled bool
WriteAsEnabled bool
GitLabEnabled bool
GitLabDisplayName string
}
// NewOAuthButtons creates a new OAuthButtons struct based on our app configuration.
func NewOAuthButtons(cfg *config.Config) *OAuthButtons {
return &OAuthButtons{
SlackEnabled: cfg.SlackOauth.ClientID != "",
WriteAsEnabled: cfg.WriteAsOauth.ClientID != "",
GitLabEnabled: cfg.GitlabOauth.ClientID != "",
GitLabDisplayName: config.OrDefaultString(cfg.GitlabOauth.DisplayName, gitlabDisplayName),
}
}
// TokenResponse contains data returned when a token is created either
// through a code exchange or using a refresh token.
type TokenResponse struct {
@ -61,8 +88,8 @@ type OAuthDatastoreProvider interface {
type OAuthDatastore interface {
GetIDForRemoteUser(context.Context, string, string, string) (int64, error)
RecordRemoteUserID(context.Context, int64, string, string, string, string) error
ValidateOAuthState(context.Context, string) (string, string, int64, error)
GenerateOAuthState(context.Context, string, string, int64) (string, error)
ValidateOAuthState(context.Context, string) (string, string, int64, string, error)
GenerateOAuthState(context.Context, string, string, int64, string) (string, error)
CreateUser(*config.Config, *User, string) error
GetUserByID(int64) (*User, error)
@ -108,7 +135,7 @@ func (h oauthHandler) viewOauthInit(app *App, w http.ResponseWriter, r *http.Req
attachUser = user.ID
}
state, err := h.DB.GenerateOAuthState(ctx, h.oauthClient.GetProvider(), h.oauthClient.GetClientID(), attachUser)
state, err := h.DB.GenerateOAuthState(ctx, h.oauthClient.GetProvider(), h.oauthClient.GetClientID(), attachUser, r.FormValue("invite_code"))
if err != nil {
log.Error("viewOauthInit error: %s", err)
return impart.HTTPError{http.StatusInternalServerError, "could not prepare oauth redirect url"}
@ -228,7 +255,7 @@ func (h oauthHandler) viewOauthCallback(app *App, w http.ResponseWriter, r *http
code := r.FormValue("code")
state := r.FormValue("state")
provider, clientID, attachUserID, err := h.DB.ValidateOAuthState(ctx, state)
provider, clientID, attachUserID, inviteCode, err := h.DB.ValidateOAuthState(ctx, state)
if err != nil {
log.Error("Unable to ValidateOAuthState: %s", err)
return impart.HTTPError{http.StatusInternalServerError, err.Error()}
@ -240,7 +267,7 @@ func (h oauthHandler) viewOauthCallback(app *App, w http.ResponseWriter, r *http
return impart.HTTPError{http.StatusInternalServerError, err.Error()}
}
// Now that we have the access token, let's use it real quick to make sur
// Now that we have the access token, let's use it real quick to make sure
// it really really works.
tokenInfo, err := h.oauthClient.inspectOauthAccessToken(ctx, tokenResponse.AccessToken)
if err != nil {
@ -262,6 +289,7 @@ func (h oauthHandler) viewOauthCallback(app *App, w http.ResponseWriter, r *http
}
if localUserID != -1 {
// Existing user, so log in now
user, err := h.DB.GetUserByID(localUserID)
if err != nil {
log.Error("Unable to GetUserByID %d: %s", localUserID, err)
@ -282,6 +310,22 @@ func (h oauthHandler) viewOauthCallback(app *App, w http.ResponseWriter, r *http
return impart.HTTPError{http.StatusFound, "/me/settings"}
}
// New user registration below.
// First, verify that user is allowed to register
if inviteCode != "" {
// Verify invite code is valid
i, err := app.db.GetUserInvite(inviteCode)
if err != nil {
return impart.HTTPError{http.StatusInternalServerError, err.Error()}
}
if !i.Active(app.db) {
return impart.HTTPError{http.StatusNotFound, "Invite link has expired."}
}
} else if !app.cfg.App.OpenRegistration {
addSessionFlash(app, w, r, ErrUserNotFound.Error(), nil)
return impart.HTTPError{http.StatusFound, "/login"}
}
displayName := tokenInfo.DisplayName
if len(displayName) == 0 {
displayName = tokenInfo.Username
@ -295,6 +339,7 @@ func (h oauthHandler) viewOauthCallback(app *App, w http.ResponseWriter, r *http
TokenRemoteUser: tokenInfo.UserID,
Provider: provider,
ClientID: clientID,
InviteCode: inviteCode,
}
tp.TokenHash = tp.HashTokenParams(h.Config.Server.HashSeed)

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@ -38,6 +38,7 @@ type viewOauthSignupVars struct {
Provider string
ClientID string
TokenHash string
InviteCode string
LoginUsername string
Alias string // TODO: rename this to match the data it represents: the collection title
@ -57,6 +58,7 @@ const (
oauthParamAlias = "alias"
oauthParamEmail = "email"
oauthParamPassword = "password"
oauthParamInviteCode = "invite_code"
)
type oauthSignupPageParams struct {
@ -68,6 +70,7 @@ type oauthSignupPageParams struct {
ClientID string
Provider string
TokenHash string
InviteCode string
}
func (p oauthSignupPageParams) HashTokenParams(key string) string {
@ -92,6 +95,7 @@ func (h oauthHandler) viewOauthSignup(app *App, w http.ResponseWriter, r *http.R
TokenRemoteUser: r.FormValue(oauthParamTokenRemoteUserID),
ClientID: r.FormValue(oauthParamClientID),
Provider: r.FormValue(oauthParamProvider),
InviteCode: r.FormValue(oauthParamInviteCode),
}
if tp.HashTokenParams(h.Config.Server.HashSeed) != r.FormValue(oauthParamHash) {
return impart.HTTPError{Status: http.StatusBadRequest, Message: "Request has been tampered with."}
@ -128,6 +132,14 @@ func (h oauthHandler) viewOauthSignup(app *App, w http.ResponseWriter, r *http.R
return h.showOauthSignupPage(app, w, r, tp, err)
}
// Log invite if needed
if tp.InviteCode != "" {
err = app.db.CreateInvitedUser(tp.InviteCode, newUser.ID)
if err != nil {
return err
}
}
err = h.DB.RecordRemoteUserID(r.Context(), newUser.ID, r.FormValue(oauthParamTokenRemoteUserID), r.FormValue(oauthParamProvider), r.FormValue(oauthParamClientID), r.FormValue(oauthParamAccessToken))
if err != nil {
return h.showOauthSignupPage(app, w, r, tp, err)
@ -195,6 +207,7 @@ func (h oauthHandler) showOauthSignupPage(app *App, w http.ResponseWriter, r *ht
Provider: tp.Provider,
ClientID: tp.ClientID,
TokenHash: tp.TokenHash,
InviteCode: tp.InviteCode,
LoginUsername: username,
Alias: collTitle,

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@ -13,8 +13,6 @@ package writefreely
import (
"context"
"errors"
"fmt"
"github.com/writeas/nerds/store"
"github.com/writeas/slug"
"net/http"
"net/url"
@ -167,7 +165,7 @@ func (c slackOauthClient) inspectOauthAccessToken(ctx context.Context, accessTok
func (resp slackUserIdentityResponse) InspectResponse() *InspectResponse {
return &InspectResponse{
UserID: resp.User.ID,
Username: fmt.Sprintf("%s-%s", slug.Make(resp.User.Name), store.GenerateRandomString("0123456789bcdfghjklmnpqrstvwxyz", 5)),
Username: slug.Make(resp.User.Name),
DisplayName: resp.User.Name,
Email: resp.User.Email,
}

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@ -22,8 +22,8 @@ type MockOAuthDatastoreProvider struct {
}
type MockOAuthDatastore struct {
DoGenerateOAuthState func(context.Context, string, string, int64) (string, error)
DoValidateOAuthState func(context.Context, string) (string, string, int64, error)
DoGenerateOAuthState func(context.Context, string, string, int64, string) (string, error)
DoValidateOAuthState func(context.Context, string) (string, string, int64, string, error)
DoGetIDForRemoteUser func(context.Context, string, string, string) (int64, error)
DoCreateUser func(*config.Config, *User, string) error
DoRecordRemoteUserID func(context.Context, int64, string, string, string, string) error
@ -86,11 +86,11 @@ func (m *MockOAuthDatastoreProvider) Config() *config.Config {
return cfg
}
func (m *MockOAuthDatastore) ValidateOAuthState(ctx context.Context, state string) (string, string, int64, error) {
func (m *MockOAuthDatastore) ValidateOAuthState(ctx context.Context, state string) (string, string, int64, string, error) {
if m.DoValidateOAuthState != nil {
return m.DoValidateOAuthState(ctx, state)
}
return "", "", 0, nil
return "", "", 0, "", nil
}
func (m *MockOAuthDatastore) GetIDForRemoteUser(ctx context.Context, remoteUserID, provider, clientID string) (int64, error) {
@ -119,15 +119,13 @@ func (m *MockOAuthDatastore) GetUserByID(userID int64) (*User, error) {
if m.DoGetUserByID != nil {
return m.DoGetUserByID(userID)
}
user := &User{
}
user := &User{}
return user, nil
}
func (m *MockOAuthDatastore) GenerateOAuthState(ctx context.Context, provider string, clientID string, attachUserID int64) (string, error) {
func (m *MockOAuthDatastore) GenerateOAuthState(ctx context.Context, provider string, clientID string, attachUserID int64, inviteCode string) (string, error) {
if m.DoGenerateOAuthState != nil {
return m.DoGenerateOAuthState(ctx, provider, clientID, attachUserID)
return m.DoGenerateOAuthState(ctx, provider, clientID, attachUserID, inviteCode)
}
return store.Generate62RandomString(14), nil
}
@ -173,7 +171,7 @@ func TestViewOauthInit(t *testing.T) {
app := &MockOAuthDatastoreProvider{
DoDB: func() OAuthDatastore {
return &MockOAuthDatastore{
DoGenerateOAuthState: func(ctx context.Context, provider, clientID string, attachUserID int64) (string, error) {
DoGenerateOAuthState: func(ctx context.Context, provider, clientID string, attachUserID int64, inviteCode string) (string, error) {
return "", fmt.Errorf("pretend unable to write state error")
},
}

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@ -3,39 +3,6 @@
<meta itemprop="description" content="Log in to {{.SiteName}}.">
<style>
input{margin-bottom:0.5em;}
.or {
text-align: center;
margin-bottom: 3.5em;
}
.or p {
display: inline-block;
background-color: white;
padding: 0 1em;
}
.or hr {
margin-top: -1.6em;
margin-bottom: 0;
}
hr.short {
max-width: 30rem;
}
.row.signinbtns {
justify-content: space-evenly;
font-size: 1em;
margin-top: 3em;
margin-bottom: 2em;
}
.loginbtn {
height: 40px;
}
#writeas-login {
box-sizing: border-box;
font-size: 17px;
}
#gitlab-login {
box-sizing: border-box;
font-size: 17px;
}
</style>
{{end}}
{{define "content"}}

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@ -1,6 +1,4 @@
{{define "head"}}<title>Log in &mdash; {{.SiteName}}</title>
<meta name="description" content="Log in to {{.SiteName}}.">
<meta itemprop="description" content="Log in to {{.SiteName}}.">
{{define "head"}}<title>Finish Creating Account &mdash; {{.SiteName}}</title>
<style>input{margin-bottom:0.5em;}</style>
<style type="text/css">
h2 {
@ -58,7 +56,7 @@ form dd {
{{end}}
{{define "content"}}
<div id="pricing" class="tight content-container">
<h1>Log in to {{.SiteName}}</h1>
<h1>Finish creating account</h1>
{{if .Flashes}}<ul class="errors">
{{range .Flashes}}<li class="urgent">{{.}}</li>{{end}}
@ -74,6 +72,7 @@ form dd {
<input type="hidden" name="provider" value="{{ .Provider }}" />
<input type="hidden" name="client_id" value="{{ .ClientID }}" />
<input type="hidden" name="signature" value="{{ .TokenHash }}" />
{{if .InviteCode}}<input type="hidden" name="invite_code" value="{{ .InviteCode }}" />{{end}}
<dl class="billing">
<label>
@ -96,7 +95,7 @@ form dd {
</dd>
</label>
<dt>
<input type="submit" id="btn-login" value="Login" />
<input type="submit" id="btn-login" value="Next" />
</dt>
</dl>
</form>
@ -129,7 +128,7 @@ var $aliasSite = document.getElementById('alias-site');
var aliasOK = true;
var typingTimer;
var doneTypingInterval = 750;
var doneTyping = function() {
var doneTyping = function(genID) {
// Check on username
var alias = $alias.el.value;
if (alias != "") {
@ -152,6 +151,11 @@ var doneTyping = function() {
$aliasSite.className = $aliasSite.className.replace(/(?:^|\s)error(?!\S)/g, '');
$aliasSite.innerHTML = '{{ if .Federation }}@<strong>' + data.data + '</strong>@{{.FriendlyHost}}{{ else }}{{.FriendlyHost}}/<strong>' + data.data + '</strong>/{{ end }}';
} else {
if (genID === true) {
$alias.el.value = alias + "-" + randStr(4);
doneTyping();
return;
}
aliasOK = false;
$alias.setClass('error');
$aliasSite.className = 'error';
@ -169,6 +173,14 @@ $alias.on('keyup input', function() {
clearTimeout(typingTimer);
typingTimer = setTimeout(doneTyping, doneTypingInterval);
});
doneTyping();
function randStr(len) {
var res = '';
var chars = '23456789bcdfghjklmnpqrstvwxyz';
for (var i=0; i<len; i++) {
res += chars.charAt(Math.floor(Math.random() * chars.length));
}
return res;
}
doneTyping(true);
</script>
{{end}}

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@ -70,6 +70,25 @@ form dd {
</ul>{{end}}
<div id="billing">
{{ if or .OAuth.SlackEnabled .OAuth.WriteAsEnabled .OAuth.GitLabEnabled }}
<div class="row content-container signinbtns">
{{ if .OAuth.SlackEnabled }}
<a class="loginbtn" href="/oauth/slack{{if .Invite}}?invite_code={{.Invite}}{{end}}"><img alt="Sign in with Slack" height="40" width="172" src="/img/sign_in_with_slack.png" srcset="/img/sign_in_with_slack.png 1x, /img/sign_in_with_slack@2x.png 2x" /></a>
{{ end }}
{{ if .OAuth.WriteAsEnabled }}
<a class="btn cta loginbtn" id="writeas-login" href="/oauth/write.as{{if .Invite}}?invite_code={{.Invite}}{{end}}">Sign in with <strong>Write.as</strong></a>
{{ end }}
{{ if .OAuth.GitLabEnabled }}
<a class="btn cta loginbtn" id="gitlab-login" href="/oauth/gitlab{{if .Invite}}?invite_code={{.Invite}}{{end}}">Sign in with <strong>{{.OAuth.GitLabDisplayName}}</strong></a>
{{ end }}
</div>
<div class="or">
<p>or</p>
<hr class="short" />
</div>
{{ end }}
<form action="/auth/signup" method="POST" id="signup-form" onsubmit="return signup()">
<input type="hidden" name="invite_code" value="{{.Invite}}" />
<dl class="billing">