mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2025-10-30 19:22:25 -05:00
5212a1057e* support no preferred_username, instead using webfingered username * add tests for the new preferred_username behaviour
97 lines
2.5 KiB
Go
97 lines
2.5 KiB
Go
// GoToSocial
|
|
// Copyright (C) GoToSocial Authors admin@gotosocial.org
|
|
// SPDX-License-Identifier: AGPL-3.0-or-later
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package util
|
|
|
|
import (
|
|
"net/url"
|
|
"strings"
|
|
|
|
"golang.org/x/net/idna"
|
|
)
|
|
|
|
// Punify converts the given domain to lowercase
|
|
// then to punycode (for international domain names).
|
|
//
|
|
// Returns the resulting domain or an error if the
|
|
// punycode conversion fails.
|
|
func Punify(domain string) (string, error) {
|
|
domain = strings.ToLower(domain)
|
|
return idna.ToASCII(domain)
|
|
}
|
|
|
|
// DePunify converts the given punycode string
|
|
// to its original unicode representation (lowercased).
|
|
// Noop if the domain is (already) not puny.
|
|
//
|
|
// Returns an error if conversion fails.
|
|
func DePunify(domain string) (string, error) {
|
|
out, err := idna.ToUnicode(domain)
|
|
return strings.ToLower(out), err
|
|
}
|
|
|
|
// URIMatches returns true if the expected URI matches
|
|
// any of the given URIs, taking account of punycode.
|
|
func URIMatches(expect *url.URL, uris ...*url.URL) (bool, error) {
|
|
// Normalize expect to punycode.
|
|
expectStr, err := PunifyURIToStr(expect)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
|
|
for _, uri := range uris {
|
|
uriStr, err := PunifyURIToStr(uri)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
|
|
if uriStr == expectStr {
|
|
// Looks good.
|
|
return true, nil
|
|
}
|
|
}
|
|
|
|
// Didn't match.
|
|
return false, nil
|
|
}
|
|
|
|
// PunifyURI returns a copy of the given URI
|
|
// with the 'host' part converted to punycode.
|
|
func PunifyURI(in *url.URL) (*url.URL, error) {
|
|
punyHost, err := Punify(in.Host)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
out := new(url.URL)
|
|
*out = *in
|
|
out.Host = punyHost
|
|
return out, nil
|
|
}
|
|
|
|
// PunifyURIToStr returns given URI serialized
|
|
// with the 'host' part converted to punycode.
|
|
func PunifyURIToStr(in *url.URL) (string, error) {
|
|
punyHost, err := Punify(in.Host)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
oldHost := in.Host
|
|
in.Host = punyHost
|
|
str := in.String()
|
|
in.Host = oldHost
|
|
return str, nil
|
|
}
|