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// Copyright 2021 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package auth
import (
"context"
"strings"
"code.gitea.io/gitea/models/auth"
"code.gitea.io/gitea/models/db"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/optional"
"code.gitea.io/gitea/services/auth/source/oauth2"
"code.gitea.io/gitea/services/auth/source/smtp"
_ "code.gitea.io/gitea/services/auth/source/db" // register the sources (and below)
_ "code.gitea.io/gitea/services/auth/source/ldap" // register the ldap source
_ "code.gitea.io/gitea/services/auth/source/pam" // register the pam source
_ "code.gitea.io/gitea/services/auth/source/sspi" // register the sspi source
)
// UserSignIn validates user name and password.
func UserSignIn(ctx context.Context, username, password string) (*user_model.User, *auth.Source, error) {
var user *user_model.User
isEmail := false
if strings.Contains(username, "@") {
isEmail = true
emailAddress := user_model.EmailAddress{LowerEmail: strings.ToLower(strings.TrimSpace(username))}
// check same email
has, err := db.GetEngine(ctx).Get(&emailAddress)
if err != nil {
return nil, nil, err
}
if has {
if !emailAddress.IsActivated {
return nil, nil, user_model.ErrEmailAddressNotExist{
Email: username,
}
}
user = &user_model.User{ID: emailAddress.UID}
}
} else {
trimmedUsername := strings.TrimSpace(username)
if len(trimmedUsername) == 0 {
return nil, nil, user_model.ErrUserNotExist{Name: username}
}
user = &user_model.User{LowerName: strings.ToLower(trimmedUsername)}
}
if user != nil {
hasUser, err := user_model.GetUser(ctx, user)
if err != nil {
return nil, nil, err
}
if hasUser {
source, err := auth.GetSourceByID(ctx, user.LoginSource)
if err != nil {
return nil, nil, err
}
if !source.IsActive {
return nil, nil, oauth2.ErrAuthSourceNotActivated
}
authenticator, ok := source.Cfg.(PasswordAuthenticator)
if !ok {
return nil, nil, smtp.ErrUnsupportedLoginType
}
user, err := authenticator.Authenticate(ctx, user, user.LoginName, password)
if err != nil {
return nil, nil, err
}
// WARN: DON'T check user.IsActive, that will be checked on reqSign so that
// user could be hint to resend confirm email.
if user.ProhibitLogin {
return nil, nil, user_model.ErrUserProhibitLogin{UID: user.ID, Name: user.Name}
}
return user, source, nil
}
}
sources, err := db.Find[auth.Source](ctx, auth.FindSourcesOptions{
IsActive: optional.Some(true),
})
if err != nil {
return nil, nil, err
}
for _, source := range sources {
if !source.IsActive {
// don't try to authenticate non-active sources
continue
}
authenticator, ok := source.Cfg.(PasswordAuthenticator)
if !ok {
continue
}
authUser, err := authenticator.Authenticate(ctx, nil, username, password)
if err == nil {
if !authUser.ProhibitLogin {
return authUser, source, nil
}
err = user_model.ErrUserProhibitLogin{UID: authUser.ID, Name: authUser.Name}
}
if user_model.IsErrUserNotExist(err) {
log.Debug("Failed to login '%s' via '%s': %v", username, source.Name, err)
} else {
log.Warn("Failed to login '%s' via '%s': %v", username, source.Name, err)
}
}
if isEmail {
return nil, nil, user_model.ErrEmailAddressNotExist{Email: username}
}
return nil, nil, user_model.ErrUserNotExist{Name: username}
}
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