README
¶
X-Forwarded-For middleware fo Go 
Package xff is a net/http middleware/handler to parse Forwarded HTTP Extension in Golang.
Example usage
Install xff:
go get github.com/sebest/xff
Edit server.go:
package main
import (
"net/http"
"github.com/sebest/xff"
)
func main() {
handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("hello from " + r.RemoteAddr + "\n"))
})
xffmw, _ := xff.Default()
http.ListenAndServe(":8080", xffmw.Handler(handler))
}
Then run your server:
go run server.go
The server now runs on localhost:8080:
$ curl -D - -H 'X-Forwarded-For: 42.42.42.42' http://localhost:8080/
HTTP/1.1 200 OK
Date: Fri, 20 Feb 2015 20:03:02 GMT
Content-Length: 29
Content-Type: text/plain; charset=utf-8
hello from 42.42.42.42:52661
Documentation
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Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func GetRemoteAddr ¶
GetRemoteAddr parses the given request, resolves the X-Forwarded-For header and returns the resolved remote address.
func GetRemoteAddrIfAllowed ¶
GetRemoteAddrIfAllowed parses the given request, resolves the X-Forwarded-For header and returns the resolved remote address if allowed.
func IsPublicIP ¶
IsPublicIP returns true if the given IP can be routed on the Internet.
Types ¶
type Options ¶
type Options struct {
// AllowedSubnets is a list of Subnets from which we will accept the
// X-Forwarded-For header.
// If this list is empty we will accept every Subnets (default).
AllowedSubnets []string
// Debugging flag adds additional output to debug server side XFF issues.
Debug bool
}
Options is a configuration container to setup the XFF middleware.
type XFF ¶
XFF http handler
func (*XFF) HandlerFunc ¶
func (xff *XFF) HandlerFunc(w http.ResponseWriter, r *http.Request)
HandlerFunc provides Martini compatible handler
func (*XFF) ServeHTTP ¶
func (xff *XFF) ServeHTTP(w http.ResponseWriter, r *http.Request, next http.HandlerFunc)
Negroni compatible interface
Source Files
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