forgejo/routers/user/auth_openid.go

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// Copyright 2017 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 user
import (
"fmt"
"net/url"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/auth"
"code.gitea.io/gitea/modules/auth/openid"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"github.com/go-macaron/captcha"
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)
const (
tplSignInOpenID base.TplName = "user/auth/signin_openid"
tplConnectOID base.TplName = "user/auth/signup_openid_connect"
tplSignUpOID base.TplName = "user/auth/signup_openid_register"
)
// SignInOpenID render sign in page
func SignInOpenID(ctx *context.Context) {
ctx.Data["Title"] = ctx.Tr("sign_in")
if ctx.Query("openid.return_to") != "" {
signInOpenIDVerify(ctx)
return
}
// Check auto-login.
isSucceed, err := AutoSignIn(ctx)
if err != nil {
ctx.Handle(500, "AutoSignIn", err)
return
}
redirectTo := ctx.Query("redirect_to")
if len(redirectTo) > 0 {
ctx.SetCookie("redirect_to", redirectTo, 0, setting.AppSubURL)
} else {
redirectTo, _ = url.QueryUnescape(ctx.GetCookie("redirect_to"))
}
if isSucceed {
if len(redirectTo) > 0 {
ctx.SetCookie("redirect_to", "", -1, setting.AppSubURL)
ctx.Redirect(redirectTo)
} else {
ctx.Redirect(setting.AppSubURL + "/")
}
return
}
ctx.Data["PageIsSignIn"] = true
ctx.Data["PageIsLoginOpenID"] = true
ctx.HTML(200, tplSignInOpenID)
}
// Check if the given OpenID URI is allowed by blacklist/whitelist
func allowedOpenIDURI(uri string) (err error) {
// In case a Whitelist is present, URI must be in it
// in order to be accepted
if len(setting.Service.OpenIDWhitelist) != 0 {
for _, pat := range setting.Service.OpenIDWhitelist {
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if pat.MatchString(uri) {
return nil // pass
}
}
// must match one of this or be refused
return fmt.Errorf("URI not allowed by whitelist")
}
// A blacklist match expliclty forbids
for _, pat := range setting.Service.OpenIDBlacklist {
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if pat.MatchString(uri) {
return fmt.Errorf("URI forbidden by blacklist")
}
}
return nil
}
// SignInOpenIDPost response for openid sign in request
func SignInOpenIDPost(ctx *context.Context, form auth.SignInOpenIDForm) {
ctx.Data["Title"] = ctx.Tr("sign_in")
ctx.Data["PageIsSignIn"] = true
ctx.Data["PageIsLoginOpenID"] = true
if ctx.HasError() {
ctx.HTML(200, tplSignInOpenID)
return
}
id, err := openid.Normalize(form.Openid)
if err != nil {
ctx.RenderWithErr(err.Error(), tplSignInOpenID, &form)
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return
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}
form.Openid = id
log.Trace("OpenID uri: " + id)
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err = allowedOpenIDURI(id)
if err != nil {
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ctx.RenderWithErr(err.Error(), tplSignInOpenID, &form)
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return
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}
redirectTo := setting.AppURL + "user/login/openid"
url, err := openid.RedirectURL(id, redirectTo, setting.AppURL)
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if err != nil {
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ctx.RenderWithErr(err.Error(), tplSignInOpenID, &form)
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return
}
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// Request optional nickname and email info
// NOTE: change to `openid.sreg.required` to require it
url += "&openid.ns.sreg=http%3A%2F%2Fopenid.net%2Fextensions%2Fsreg%2F1.1"
url += "&openid.sreg.optional=nickname%2Cemail"
log.Trace("Form-passed openid-remember: %s", form.Remember)
ctx.Session.Set("openid_signin_remember", form.Remember)
ctx.Redirect(url)
}
// signInOpenIDVerify handles response from OpenID provider
func signInOpenIDVerify(ctx *context.Context) {
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log.Trace("Incoming call to: " + ctx.Req.Request.URL.String())
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fullURL := setting.AppURL + ctx.Req.Request.URL.String()[1:]
log.Trace("Full URL: " + fullURL)
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var id, err = openid.Verify(fullURL)
if err != nil {
ctx.RenderWithErr(err.Error(), tplSignInOpenID, &auth.SignInOpenIDForm{
Openid: id,
})
return
}
log.Trace("Verified ID: " + id)
/* Now we should seek for the user and log him in, or prompt
* to register if not found */
u, _ := models.GetUserByOpenID(id)
if err != nil {
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if !models.IsErrUserNotExist(err) {
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ctx.RenderWithErr(err.Error(), tplSignInOpenID, &auth.SignInOpenIDForm{
Openid: id,
})
return
}
}
if u != nil {
log.Trace("User exists, logging in")
remember, _ := ctx.Session.Get("openid_signin_remember").(bool)
log.Trace("Session stored openid-remember: %s", remember)
handleSignIn(ctx, u, remember)
return
}
log.Trace("User with openid " + id + " does not exist, should connect or register")
parsedURL, err := url.Parse(fullURL)
if err != nil {
ctx.RenderWithErr(err.Error(), tplSignInOpenID, &auth.SignInOpenIDForm{
Openid: id,
})
return
}
values, err := url.ParseQuery(parsedURL.RawQuery)
if err != nil {
ctx.RenderWithErr(err.Error(), tplSignInOpenID, &auth.SignInOpenIDForm{
Openid: id,
})
return
}
email := values.Get("openid.sreg.email")
nickname := values.Get("openid.sreg.nickname")
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log.Trace("User has email=" + email + " and nickname=" + nickname)
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if email != "" {
u, _ = models.GetUserByEmail(email)
if err != nil {
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if !models.IsErrUserNotExist(err) {
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ctx.RenderWithErr(err.Error(), tplSignInOpenID, &auth.SignInOpenIDForm{
Openid: id,
})
return
}
}
if u != nil {
log.Trace("Local user " + u.LowerName + " has OpenID provided email " + email)
}
}
if u == nil && nickname != "" {
u, _ = models.GetUserByName(nickname)
if err != nil {
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if !models.IsErrUserNotExist(err) {
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ctx.RenderWithErr(err.Error(), tplSignInOpenID, &auth.SignInOpenIDForm{
Openid: id,
})
return
}
}
if u != nil {
log.Trace("Local user " + u.LowerName + " has OpenID provided nickname " + nickname)
}
}
ctx.Session.Set("openid_verified_uri", id)
ctx.Session.Set("openid_determined_email", email)
if u != nil {
nickname = u.LowerName
}
ctx.Session.Set("openid_determined_username", nickname)
if u != nil || !setting.Service.EnableOpenIDSignUp {
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ctx.Redirect(setting.AppSubURL + "/user/openid/connect")
} else {
ctx.Redirect(setting.AppSubURL + "/user/openid/register")
}
}
// ConnectOpenID shows a form to connect an OpenID URI to an existing account
func ConnectOpenID(ctx *context.Context) {
oid, _ := ctx.Session.Get("openid_verified_uri").(string)
if oid == "" {
ctx.Redirect(setting.AppSubURL + "/user/login/openid")
return
}
ctx.Data["Title"] = "OpenID connect"
ctx.Data["PageIsSignIn"] = true
ctx.Data["PageIsOpenIDConnect"] = true
ctx.Data["EnableOpenIDSignUp"] = setting.Service.EnableOpenIDSignUp
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ctx.Data["OpenID"] = oid
userName, _ := ctx.Session.Get("openid_determined_username").(string)
if userName != "" {
ctx.Data["user_name"] = userName
}
ctx.HTML(200, tplConnectOID)
}
// ConnectOpenIDPost handles submission of a form to connect an OpenID URI to an existing account
func ConnectOpenIDPost(ctx *context.Context, form auth.ConnectOpenIDForm) {
oid, _ := ctx.Session.Get("openid_verified_uri").(string)
if oid == "" {
ctx.Redirect(setting.AppSubURL + "/user/login/openid")
return
}
ctx.Data["Title"] = "OpenID connect"
ctx.Data["PageIsSignIn"] = true
ctx.Data["PageIsOpenIDConnect"] = true
ctx.Data["EnableOpenIDSignUp"] = setting.Service.EnableOpenIDSignUp
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ctx.Data["OpenID"] = oid
u, err := models.UserSignIn(form.UserName, form.Password)
if err != nil {
if models.IsErrUserNotExist(err) {
ctx.RenderWithErr(ctx.Tr("form.username_password_incorrect"), tplConnectOID, &form)
} else {
ctx.Handle(500, "ConnectOpenIDPost", err)
}
return
}
// add OpenID for the user
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userOID := &models.UserOpenID{UID: u.ID, URI: oid}
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if err = models.AddUserOpenID(userOID); err != nil {
if models.IsErrOpenIDAlreadyUsed(err) {
ctx.RenderWithErr(ctx.Tr("form.openid_been_used", oid), tplConnectOID, &form)
return
}
ctx.Handle(500, "AddUserOpenID", err)
return
}
ctx.Flash.Success(ctx.Tr("settings.add_openid_success"))
remember, _ := ctx.Session.Get("openid_signin_remember").(bool)
log.Trace("Session stored openid-remember: %s", remember)
handleSignIn(ctx, u, remember)
}
// RegisterOpenID shows a form to create a new user authenticated via an OpenID URI
func RegisterOpenID(ctx *context.Context) {
if !setting.Service.EnableOpenIDSignUp {
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ctx.Error(403)
return
}
oid, _ := ctx.Session.Get("openid_verified_uri").(string)
if oid == "" {
ctx.Redirect(setting.AppSubURL + "/user/login/openid")
return
}
ctx.Data["Title"] = "OpenID signup"
ctx.Data["PageIsSignIn"] = true
ctx.Data["PageIsOpenIDRegister"] = true
ctx.Data["EnableOpenIDSignUp"] = setting.Service.EnableOpenIDSignUp
ctx.Data["EnableCaptcha"] = setting.Service.EnableCaptcha
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ctx.Data["OpenID"] = oid
userName, _ := ctx.Session.Get("openid_determined_username").(string)
if userName != "" {
ctx.Data["user_name"] = userName
}
email, _ := ctx.Session.Get("openid_determined_email").(string)
if email != "" {
ctx.Data["email"] = email
}
ctx.HTML(200, tplSignUpOID)
}
// RegisterOpenIDPost handles submission of a form to create a new user authenticated via an OpenID URI
func RegisterOpenIDPost(ctx *context.Context, cpt *captcha.Captcha, form auth.SignUpOpenIDForm) {
if !setting.Service.EnableOpenIDSignUp {
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ctx.Error(403)
return
}
oid, _ := ctx.Session.Get("openid_verified_uri").(string)
if oid == "" {
ctx.Redirect(setting.AppSubURL + "/user/login/openid")
return
}
ctx.Data["Title"] = "OpenID signup"
ctx.Data["PageIsSignIn"] = true
ctx.Data["PageIsOpenIDRegister"] = true
ctx.Data["EnableOpenIDSignUp"] = setting.Service.EnableOpenIDSignUp
ctx.Data["EnableCaptcha"] = setting.Service.EnableCaptcha
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ctx.Data["OpenID"] = oid
if setting.Service.EnableCaptcha && !cpt.VerifyReq(ctx.Req) {
ctx.Data["Err_Captcha"] = true
ctx.RenderWithErr(ctx.Tr("form.captcha_incorrect"), tplSignUpOID, &form)
return
}
len := setting.MinPasswordLength
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if len < 256 {
len = 256
}
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password, err := base.GetRandomString(len)
if err != nil {
ctx.RenderWithErr(err.Error(), tplSignUpOID, form)
return
}
// TODO: abstract a finalizeSignUp function ?
u := &models.User{
Name: form.UserName,
Email: form.Email,
Passwd: password,
IsActive: !setting.Service.RegisterEmailConfirm,
}
if err := models.CreateUser(u); err != nil {
switch {
case models.IsErrUserAlreadyExist(err):
ctx.Data["Err_UserName"] = true
ctx.RenderWithErr(ctx.Tr("form.username_been_taken"), tplSignUpOID, &form)
case models.IsErrEmailAlreadyUsed(err):
ctx.Data["Err_Email"] = true
ctx.RenderWithErr(ctx.Tr("form.email_been_used"), tplSignUpOID, &form)
case models.IsErrNameReserved(err):
ctx.Data["Err_UserName"] = true
ctx.RenderWithErr(ctx.Tr("user.form.name_reserved", err.(models.ErrNameReserved).Name), tplSignUpOID, &form)
case models.IsErrNamePatternNotAllowed(err):
ctx.Data["Err_UserName"] = true
ctx.RenderWithErr(ctx.Tr("user.form.name_pattern_not_allowed", err.(models.ErrNamePatternNotAllowed).Pattern), tplSignUpOID, &form)
default:
ctx.Handle(500, "CreateUser", err)
}
return
}
log.Trace("Account created: %s", u.Name)
// add OpenID for the user
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userOID := &models.UserOpenID{UID: u.ID, URI: oid}
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if err = models.AddUserOpenID(userOID); err != nil {
if models.IsErrOpenIDAlreadyUsed(err) {
ctx.RenderWithErr(ctx.Tr("form.openid_been_used", oid), tplSignUpOID, &form)
return
}
ctx.Handle(500, "AddUserOpenID", err)
return
}
// Auto-set admin for the only user.
if models.CountUsers() == 1 {
u.IsAdmin = true
u.IsActive = true
if err := models.UpdateUser(u); err != nil {
ctx.Handle(500, "UpdateUser", err)
return
}
}
// Send confirmation email, no need for social account.
if setting.Service.RegisterEmailConfirm && u.ID > 1 {
models.SendActivateAccountMail(ctx.Context, u)
ctx.Data["IsSendRegisterMail"] = true
ctx.Data["Email"] = u.Email
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ctx.Data["ActiveCodeLives"] = base.MinutesToFriendly(setting.Service.ActiveCodeLives, ctx.Locale.Language())
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ctx.HTML(200, TplActivate)
if err := ctx.Cache.Put("MailResendLimit_"+u.LowerName, u.LowerName, 180); err != nil {
log.Error(4, "Set cache(MailResendLimit) fail: %v", err)
}
return
}
remember, _ := ctx.Session.Get("openid_signin_remember").(bool)
log.Trace("Session stored openid-remember: %s", remember)
handleSignIn(ctx, u, remember)
}