mirror of https://github.com/k3s-io/k3s
78 lines
2.2 KiB
Go
78 lines
2.2 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors All rights reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package util
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import (
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"strings"
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"k8s.io/kubernetes/pkg/util/sets"
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)
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var validSchemes = sets.NewString("http", "https", "")
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// SplitSchemeNamePort takes a string of the following forms:
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// * "<name>", returns "", "<name>","", true
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// * "<name>:<port>", returns "", "<name>","<port>",true
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// * "<scheme>:<name>:<port>", returns "<scheme>","<name>","<port>",true
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//
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// Name must be non-empty or valid will be returned false.
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// Scheme must be "http" or "https" if specified
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// Port is returned as a string, and it is not required to be numeric (could be
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// used for a named port, for example).
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func SplitSchemeNamePort(id string) (scheme, name, port string, valid bool) {
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parts := strings.Split(id, ":")
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switch len(parts) {
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case 1:
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name = parts[0]
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case 2:
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name = parts[0]
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port = parts[1]
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case 3:
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scheme = parts[0]
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name = parts[1]
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port = parts[2]
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default:
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return "", "", "", false
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}
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if len(name) > 0 && validSchemes.Has(scheme) {
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return scheme, name, port, true
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} else {
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return "", "", "", false
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}
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}
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// JoinSchemeNamePort returns a string that specifies the scheme, name, and port:
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// * "<name>"
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// * "<name>:<port>"
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// * "<scheme>:<name>:<port>"
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// None of the parameters may contain a ':' character
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// Name is required
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// Scheme must be "", "http", or "https"
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func JoinSchemeNamePort(scheme, name, port string) string {
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if len(scheme) > 0 {
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// Must include three segments to specify scheme
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return scheme + ":" + name + ":" + port
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}
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if len(port) > 0 {
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// Must include two segments to specify port
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return name + ":" + port
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}
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// Return name alone
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return name
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}
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