mirror of https://github.com/minio/minio.git
58 lines
1.9 KiB
Go
58 lines
1.9 KiB
Go
// Copyright (c) 2015-2024 MinIO, Inc.
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//
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// This file is part of MinIO Object Storage stack
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package dns
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import (
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"path"
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"strings"
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"github.com/miekg/dns"
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)
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// msgPath converts a domainname to an etcd path. If s looks like service.staging.skydns.local.,
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// the resulting key will be /skydns/local/skydns/staging/service .
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func msgPath(s, prefix string) string {
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l := dns.SplitDomainName(s)
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for i, j := 0, len(l)-1; i < j; i, j = i+1, j-1 {
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l[i], l[j] = l[j], l[i]
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}
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return path.Join(append([]string{etcdPathSeparator + prefix + etcdPathSeparator}, l...)...)
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}
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// dnsJoin joins labels to form a fully qualified domain name. If the last label is
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// the root label it is ignored. Not other syntax checks are performed.
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func dnsJoin(labels ...string) string {
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if len(labels) == 0 {
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return ""
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}
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ll := len(labels)
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if labels[ll-1] == "." {
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return strings.Join(labels[:ll-1], ".") + "."
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}
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return dns.Fqdn(strings.Join(labels, "."))
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}
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// msgUnPath converts a etcd path to domainName.
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func msgUnPath(s string) string {
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ks := strings.Split(strings.Trim(s, etcdPathSeparator), etcdPathSeparator)
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for i, j := 0, len(ks)-1; i < j; i, j = i+1, j-1 {
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ks[i], ks[j] = ks[j], ks[i]
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}
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return strings.Join(ks, ".")
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}
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