83 lines
2.0 KiB
Go
83 lines
2.0 KiB
Go
// Copyright 2015 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package types
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import (
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"errors"
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"fmt"
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"net"
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"net/url"
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"sort"
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"strings"
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)
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type URLs []url.URL
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func NewURLs(strs []string) (URLs, error) {
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all := make([]url.URL, len(strs))
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if len(all) == 0 {
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return nil, errors.New("no valid URLs given")
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}
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for i, in := range strs {
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in = strings.TrimSpace(in)
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u, err := url.Parse(in)
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if err != nil {
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return nil, err
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}
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if u.Scheme != "http" && u.Scheme != "https" && u.Scheme != "unix" && u.Scheme != "unixs" {
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return nil, fmt.Errorf("URL scheme must be http, https, unix, or unixs: %s", in)
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}
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if _, _, err := net.SplitHostPort(u.Host); err != nil {
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return nil, fmt.Errorf(`URL address does not have the form "host:port": %s`, in)
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}
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if u.Path != "" {
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return nil, fmt.Errorf("URL must not contain a path: %s", in)
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}
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all[i] = *u
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}
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us := URLs(all)
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us.Sort()
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return us, nil
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}
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func MustNewURLs(strs []string) URLs {
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urls, err := NewURLs(strs)
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if err != nil {
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panic(err)
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}
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return urls
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}
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func (us URLs) String() string {
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return strings.Join(us.StringSlice(), ",")
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}
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func (us *URLs) Sort() {
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sort.Sort(us)
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}
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func (us URLs) Len() int { return len(us) }
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func (us URLs) Less(i, j int) bool { return us[i].String() < us[j].String() }
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func (us URLs) Swap(i, j int) { us[i], us[j] = us[j], us[i] }
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func (us URLs) StringSlice() []string {
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out := make([]string, len(us))
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for i := range us {
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out[i] = us[i].String()
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}
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return out
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}
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