mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-12-22 12:54:53 -05:00
131 lines
3.2 KiB
Go
131 lines
3.2 KiB
Go
// Copyright 2016 The Gogs Authors. All rights reserved.
|
|
// Copyright 2020 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package validation
|
|
|
|
import (
|
|
"fmt"
|
|
"net/mail"
|
|
"regexp"
|
|
"strings"
|
|
|
|
"code.gitea.io/gitea/modules/setting"
|
|
"code.gitea.io/gitea/modules/util"
|
|
|
|
"github.com/gobwas/glob"
|
|
)
|
|
|
|
// ErrEmailNotActivated e-mail address has not been activated error
|
|
var ErrEmailNotActivated = util.NewInvalidArgumentErrorf("e-mail address has not been activated")
|
|
|
|
// ErrEmailCharIsNotSupported e-mail address contains unsupported character
|
|
type ErrEmailCharIsNotSupported struct {
|
|
Email string
|
|
}
|
|
|
|
// IsErrEmailCharIsNotSupported checks if an error is an ErrEmailCharIsNotSupported
|
|
func IsErrEmailCharIsNotSupported(err error) bool {
|
|
_, ok := err.(ErrEmailCharIsNotSupported)
|
|
return ok
|
|
}
|
|
|
|
func (err ErrEmailCharIsNotSupported) Error() string {
|
|
return fmt.Sprintf("e-mail address contains unsupported character [email: %s]", err.Email)
|
|
}
|
|
|
|
// ErrEmailInvalid represents an error where the email address does not comply with RFC 5322
|
|
// or has a leading '-' character
|
|
type ErrEmailInvalid struct {
|
|
Email string
|
|
}
|
|
|
|
// IsErrEmailInvalid checks if an error is an ErrEmailInvalid
|
|
func IsErrEmailInvalid(err error) bool {
|
|
_, ok := err.(ErrEmailInvalid)
|
|
return ok
|
|
}
|
|
|
|
func (err ErrEmailInvalid) Error() string {
|
|
return fmt.Sprintf("e-mail invalid [email: %s]", err.Email)
|
|
}
|
|
|
|
func (err ErrEmailInvalid) Unwrap() error {
|
|
return util.ErrInvalidArgument
|
|
}
|
|
|
|
var emailRegexp = regexp.MustCompile("^[a-zA-Z0-9.!#$%&'*+-/=?^_`{|}~]*@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$")
|
|
|
|
// check if email is a valid address with allowed domain
|
|
func ValidateEmail(email string) error {
|
|
if err := validateEmailBasic(email); err != nil {
|
|
return err
|
|
}
|
|
return validateEmailDomain(email)
|
|
}
|
|
|
|
// check if email is a valid address when admins manually add or edit users
|
|
func ValidateEmailForAdmin(email string) error {
|
|
return validateEmailBasic(email)
|
|
// In this case we do not need to check the email domain
|
|
}
|
|
|
|
// validateEmailBasic checks whether the email complies with the rules
|
|
func validateEmailBasic(email string) error {
|
|
if len(email) == 0 {
|
|
return ErrEmailInvalid{email}
|
|
}
|
|
|
|
if !emailRegexp.MatchString(email) {
|
|
return ErrEmailCharIsNotSupported{email}
|
|
}
|
|
|
|
if email[0] == '-' {
|
|
return ErrEmailInvalid{email}
|
|
}
|
|
|
|
if _, err := mail.ParseAddress(email); err != nil {
|
|
return ErrEmailInvalid{email}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func validateEmailDomain(email string) error {
|
|
if !IsEmailDomainAllowed(email) {
|
|
return ErrEmailInvalid{email}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func IsEmailDomainAllowed(email string) bool {
|
|
if len(setting.Service.EmailDomainAllowList) == 0 {
|
|
return !isEmailDomainListed(setting.Service.EmailDomainBlockList, email)
|
|
}
|
|
|
|
return isEmailDomainListed(setting.Service.EmailDomainAllowList, email)
|
|
}
|
|
|
|
// isEmailDomainListed checks whether the domain of an email address
|
|
// matches a list of domains
|
|
func isEmailDomainListed(globs []glob.Glob, email string) bool {
|
|
if len(globs) == 0 {
|
|
return false
|
|
}
|
|
|
|
n := strings.LastIndex(email, "@")
|
|
if n <= 0 {
|
|
return false
|
|
}
|
|
|
|
domain := strings.ToLower(email[n+1:])
|
|
|
|
for _, g := range globs {
|
|
if g.Match(domain) {
|
|
return true
|
|
}
|
|
}
|
|
|
|
return false
|
|
}
|