mirror of
https://github.com/go-gitea/gitea.git
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93 lines
2.6 KiB
Go
93 lines
2.6 KiB
Go
// Copyright 2021 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package smtp
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import (
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"context"
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"errors"
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"net/smtp"
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"net/textproto"
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"strings"
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auth_model "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/optional"
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"code.gitea.io/gitea/modules/util"
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)
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// Authenticate queries if the provided login/password is authenticates against the SMTP server
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// Users will be autoregistered as required
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func (source *Source) Authenticate(ctx context.Context, user *user_model.User, userName, password string) (*user_model.User, error) {
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// Verify allowed domains.
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if len(source.AllowedDomains) > 0 {
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idx := strings.Index(userName, "@")
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if idx == -1 {
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return nil, user_model.ErrUserNotExist{Name: userName}
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} else if !util.SliceContainsString(strings.Split(source.AllowedDomains, ","), userName[idx+1:], true) {
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return nil, user_model.ErrUserNotExist{Name: userName}
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}
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}
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var auth smtp.Auth
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switch source.Auth {
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case PlainAuthentication:
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auth = smtp.PlainAuth("", userName, password, source.Host)
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case LoginAuthentication:
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auth = &loginAuthenticator{userName, password}
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case CRAMMD5Authentication:
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auth = smtp.CRAMMD5Auth(userName, password)
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default:
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return nil, errors.New("unsupported SMTP auth type")
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}
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if err := Authenticate(auth, source); err != nil {
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// Check standard error format first,
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// then fallback to worse case.
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tperr, ok := err.(*textproto.Error)
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if (ok && tperr.Code == 535) ||
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strings.Contains(err.Error(), "Username and Password not accepted") {
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return nil, user_model.ErrUserNotExist{Name: userName}
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}
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if (ok && tperr.Code == 534) ||
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strings.Contains(err.Error(), "Application-specific password required") {
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return nil, user_model.ErrUserNotExist{Name: userName}
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}
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return nil, err
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}
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if user != nil {
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return user, nil
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}
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username := userName
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idx := strings.Index(userName, "@")
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if idx > -1 {
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username = userName[:idx]
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}
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user = &user_model.User{
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LowerName: strings.ToLower(username),
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Name: strings.ToLower(username),
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Email: userName,
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Passwd: password,
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LoginType: auth_model.SMTP,
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LoginSource: source.authSource.ID,
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LoginName: userName,
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}
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overwriteDefault := &user_model.CreateUserOverwriteOptions{
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IsActive: optional.Some(true),
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}
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if err := user_model.CreateUser(ctx, user, overwriteDefault); err != nil {
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return user, err
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}
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return user, nil
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}
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// IsSkipLocalTwoFA returns if this source should skip local 2fa for password authentication
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func (source *Source) IsSkipLocalTwoFA() bool {
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return source.SkipLocalTwoFA
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}
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