linx-server/headers.go
mutantmonkey 47670af185 Infer site URL from host and headers
We can use the Host property of the request and the X-Forwarded-Proto to
infer the site URL. To reduce complexity, the path is not inferred, and
it is assumed that linx-server is running at /. If this is not the case,
the site URL must be manually configured; this is no different than it
was before.
2016-06-04 18:34:22 -07:00

52 lines
983 B
Go

package main
import (
"net/http"
"net/url"
"strings"
)
type addheaders struct {
h http.Handler
headers []string
}
func (a addheaders) ServeHTTP(w http.ResponseWriter, r *http.Request) {
for _, header := range a.headers {
headerSplit := strings.SplitN(header, ": ", 2)
w.Header().Add(headerSplit[0], headerSplit[1])
}
a.h.ServeHTTP(w, r)
}
func AddHeaders(headers []string) func(http.Handler) http.Handler {
fn := func(h http.Handler) http.Handler {
return addheaders{h, headers}
}
return fn
}
func getSiteURL(r *http.Request) string {
if Config.siteURL != "" {
return Config.siteURL
} else {
u := &url.URL{}
u.Host = r.Host
if Config.sitePath != "" {
u.Path = Config.sitePath
}
if scheme := r.Header.Get("X-Forwarded-Proto"); scheme != "" {
u.Scheme = scheme
} else if Config.certFile != "" || (r.TLS != nil && r.TLS.HandshakeComplete == true) {
u.Scheme = "https"
} else {
u.Scheme = "http"
}
return u.String()
}
}