mirror of
https://github.com/k3s-io/kubernetes.git
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5bd0e9ab05
Add streaming command execution & port forwarding via HTTP connection upgrades (currently using SPDY).
86 lines
2.0 KiB
Go
86 lines
2.0 KiB
Go
/*
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Copyright 2014 Google Inc. 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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"fmt"
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"net"
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"net/url"
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"strings"
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)
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// IP adapts net.IP for use as a flag.
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type IP net.IP
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func (ip IP) String() string {
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return net.IP(ip).String()
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}
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func (ip *IP) Set(value string) error {
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*ip = IP(net.ParseIP(strings.TrimSpace(value)))
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if *ip == nil {
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return fmt.Errorf("invalid IP address: '%s'", value)
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}
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return nil
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}
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func (*IP) Type() string {
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return "ip"
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}
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// IPNet adapts net.IPNet for use as a flag.
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type IPNet net.IPNet
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func (ipnet IPNet) String() string {
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n := net.IPNet(ipnet)
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return n.String()
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}
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func (ipnet *IPNet) Set(value string) error {
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_, n, err := net.ParseCIDR(strings.TrimSpace(value))
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if err != nil {
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return err
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}
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*ipnet = IPNet(*n)
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return nil
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}
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func (*IPNet) Type() string {
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return "ipNet"
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}
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// FROM: http://golang.org/src/net/http/client.go
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// Given a string of the form "host", "host:port", or "[ipv6::address]:port",
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// return true if the string includes a port.
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func hasPort(s string) bool { return strings.LastIndex(s, ":") > strings.LastIndex(s, "]") }
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// FROM: http://golang.org/src/net/http/transport.go
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var portMap = map[string]string{
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"http": "80",
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"https": "443",
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}
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// FROM: http://golang.org/src/net/http/transport.go
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// canonicalAddr returns url.Host but always with a ":port" suffix
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func CanonicalAddr(url *url.URL) string {
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addr := url.Host
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if !hasPort(addr) {
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return addr + ":" + portMap[url.Scheme]
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}
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return addr
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}
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