49 lines
1.1 KiB
Go
49 lines
1.1 KiB
Go
/*
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Copyright 2019 The KubeSphere Authors.
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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 utils
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import (
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"net"
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"net/http"
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)
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const (
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XForwardedFor = "X-Forwarded-For"
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XRealIP = "X-Real-IP"
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XClientIP = "x-client-ip"
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)
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func RemoteIp(req *http.Request) string {
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remoteAddr := req.RemoteAddr
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if ip := req.Header.Get(XClientIP); ip != "" {
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remoteAddr = ip
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} else if ip := req.Header.Get(XRealIP); ip != "" {
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remoteAddr = ip
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} else if ip = req.Header.Get(XForwardedFor); ip != "" {
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remoteAddr = ip
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} else {
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remoteAddr, _, _ = net.SplitHostPort(remoteAddr)
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}
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if remoteAddr == "::1" {
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remoteAddr = "127.0.0.1"
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}
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return remoteAddr
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}
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