zitadel/internal/api/ui/login/init_user_handler.go
Livio Spring 40082745f4
fix(login): allow fallback to local auth in case of IdP errors (#9178)
# Which Problems Are Solved

The current login will always prefer external authentication (through an
IdP) over local authentication. So as soon as either the user had
connected to an IdP or even when the login policy was just set up to
have an IdP allowed, users would be redirected to that IdP for
(re)authentication.
This could lead to problems, where the IdP was not available or any
other error occurred in the process (such as secret expired for
EntraID).
Even when local authentication (passkeys or password) was allowed for
the corresponding user, they would always be redirected to the IdP
again, preventing any authentication. If admins were affected, they
might not even be able to update the client secret of the IdP.

# How the Problems Are Solved

Errors during the external IdP flow are handled in an
`externalAuthFailed` function, which will check if the organisation
allows local authentication and if the user has set up such.
If either password or passkeys is set up, the corresponding login page
will be presented to the user. As already with local auth passkeys is
preferred over password authentication.
The user is informed that the external login failed and fail back to
local auth as an error on the corresponding page in a focused mode. Any
interaction or after 5 second the focus mode is disabled.

# Additional Changes

None.

# Additional Context

closes #6466
2025-01-15 10:39:28 +00:00

184 lines
6.1 KiB
Go

package login
import (
"fmt"
"net/http"
"net/url"
"strconv"
http_mw "github.com/zitadel/zitadel/internal/api/http/middleware"
"github.com/zitadel/zitadel/internal/domain"
"github.com/zitadel/zitadel/internal/zerrors"
)
const (
queryInitUserCode = "code"
queryInitUserUserID = "userID"
queryInitUserLoginName = "loginname"
queryInitUserPassword = "passwordset"
tmplInitUser = "inituser"
tmplInitUserDone = "inituserdone"
)
type initUserFormData struct {
Code string `schema:"code"`
LoginName string `schema:"loginname"`
Password string `schema:"password"`
PasswordConfirm string `schema:"passwordconfirm"`
UserID string `schema:"userID"`
PasswordSet bool `schema:"passwordSet"`
Resend bool `schema:"resend"`
}
type initUserData struct {
baseData
profileData
Code string
LoginName string
UserID string
PasswordSet bool
MinLength uint64
HasUppercase string
HasLowercase string
HasNumber string
HasSymbol string
}
func InitUserLink(origin, userID, loginName, code, orgID string, passwordSet bool, authRequestID string) string {
v := url.Values{}
v.Set(queryInitUserUserID, userID)
v.Set(queryInitUserLoginName, loginName)
v.Set(queryInitUserCode, code)
v.Set(queryOrgID, orgID)
v.Set(queryInitUserPassword, strconv.FormatBool(passwordSet))
v.Set(QueryAuthRequestID, authRequestID)
return externalLink(origin) + EndpointInitUser + "?" + v.Encode()
}
func InitUserLinkTemplate(origin, userID, orgID, authRequestID string) string {
return fmt.Sprintf("%s%s?%s=%s&%s=%s&%s=%s&%s=%s&%s=%s&%s=%s",
externalLink(origin), EndpointInitUser,
queryInitUserUserID, userID,
queryInitUserLoginName, "{{.LoginName}}",
queryInitUserCode, "{{.Code}}",
queryOrgID, orgID,
queryInitUserPassword, "{{.PasswordSet}}",
QueryAuthRequestID, authRequestID)
}
func (l *Login) handleInitUser(w http.ResponseWriter, r *http.Request) {
authReq := l.checkOptionalAuthRequestOfEmailLinks(r)
userID := r.FormValue(queryInitUserUserID)
code := r.FormValue(queryInitUserCode)
loginName := r.FormValue(queryInitUserLoginName)
passwordSet, _ := strconv.ParseBool(r.FormValue(queryInitUserPassword))
l.renderInitUser(w, r, authReq, userID, loginName, code, passwordSet, nil)
}
func (l *Login) handleInitUserCheck(w http.ResponseWriter, r *http.Request) {
data := new(initUserFormData)
authReq, err := l.getAuthRequestAndParseData(r, data)
if err != nil {
l.renderError(w, r, nil, err)
return
}
if data.Resend {
l.resendUserInit(w, r, authReq, data.UserID, data.LoginName, data.PasswordSet)
return
}
l.checkUserInitCode(w, r, authReq, data, nil)
}
func (l *Login) checkUserInitCode(w http.ResponseWriter, r *http.Request, authReq *domain.AuthRequest, data *initUserFormData, err error) {
if data.Password != data.PasswordConfirm {
err := zerrors.ThrowInvalidArgument(nil, "VIEW-fsdfd", "Errors.User.Password.ConfirmationWrong")
l.renderInitUser(w, r, authReq, data.UserID, data.LoginName, data.Code, data.PasswordSet, err)
return
}
userOrgID := ""
if authReq != nil {
userOrgID = authReq.UserOrgID
}
initCodeGenerator, err := l.query.InitEncryptionGenerator(r.Context(), domain.SecretGeneratorTypeInitCode, l.userCodeAlg)
if err != nil {
l.renderInitUser(w, r, authReq, data.UserID, data.LoginName, "", data.PasswordSet, err)
return
}
userAgentID, _ := http_mw.UserAgentIDFromCtx(r.Context())
err = l.command.HumanVerifyInitCode(setContext(r.Context(), userOrgID), data.UserID, userOrgID, data.Code, data.Password, userAgentID, initCodeGenerator)
if err != nil {
l.renderInitUser(w, r, authReq, data.UserID, data.LoginName, "", data.PasswordSet, err)
return
}
l.renderInitUserDone(w, r, authReq, userOrgID)
}
func (l *Login) resendUserInit(w http.ResponseWriter, r *http.Request, authReq *domain.AuthRequest, userID string, loginName string, showPassword bool) {
var userOrgID, authRequestID string
if authReq != nil {
userOrgID = authReq.UserOrgID
authRequestID = authReq.ID
}
initCodeGenerator, err := l.query.InitEncryptionGenerator(r.Context(), domain.SecretGeneratorTypeInitCode, l.userCodeAlg)
if err != nil {
l.renderInitUser(w, r, authReq, userID, loginName, "", showPassword, err)
return
}
_, err = l.command.ResendInitialMail(setContext(r.Context(), userOrgID), userID, "", userOrgID, initCodeGenerator, authRequestID)
l.renderInitUser(w, r, authReq, userID, loginName, "", showPassword, err)
}
func (l *Login) renderInitUser(w http.ResponseWriter, r *http.Request, authReq *domain.AuthRequest, userID, loginName string, code string, passwordSet bool, err error) {
if authReq != nil {
userID = authReq.UserID
}
translator := l.getTranslator(r.Context(), authReq)
data := initUserData{
baseData: l.getBaseData(r, authReq, translator, "InitUser.Title", "InitUser.Description", err),
profileData: l.getProfileData(authReq),
UserID: userID,
Code: code,
PasswordSet: passwordSet,
}
// if the user clicked on the link in the mail, we need to make sure the loginName is rendered
if authReq == nil {
data.LoginName = loginName
data.UserName = loginName
}
policy := l.getPasswordComplexityPolicyByUserID(r, userID)
if policy != nil {
data.MinLength = policy.MinLength
if policy.HasUppercase {
data.HasUppercase = UpperCaseRegex
}
if policy.HasLowercase {
data.HasLowercase = LowerCaseRegex
}
if policy.HasSymbol {
data.HasSymbol = SymbolRegex
}
if policy.HasNumber {
data.HasNumber = NumberRegex
}
}
if authReq == nil {
user, err := l.query.GetUserByID(r.Context(), false, userID)
if err == nil {
l.customTexts(r.Context(), translator, user.ResourceOwner)
}
}
l.renderer.RenderTemplate(w, r, translator, l.renderer.Templates[tmplInitUser], data, nil)
}
func (l *Login) renderInitUserDone(w http.ResponseWriter, r *http.Request, authReq *domain.AuthRequest, orgID string) {
translator := l.getTranslator(r.Context(), authReq)
data := l.getUserData(r, authReq, translator, "InitUserDone.Title", "InitUserDone.Description", nil)
if authReq == nil {
l.customTexts(r.Context(), translator, orgID)
}
l.renderer.RenderTemplate(w, r, translator, l.renderer.Templates[tmplInitUserDone], data, nil)
}