Contains the Concourse pipeline definition for building a line-server container
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

38 lines
697 B

package main
import (
"net/http"
)
const (
cspHeader = "Content-Security-Policy"
frameOptionsHeader = "X-Frame-Options"
)
type csp struct {
h http.Handler
opts CSPOptions
}
type CSPOptions struct {
policy string
frame string
}
func (c csp) ServeHTTP(w http.ResponseWriter, r *http.Request) {
// only add a CSP if one is not already set
if existing := w.Header().Get(cspHeader); existing == "" {
w.Header().Add(cspHeader, c.opts.policy)
}
w.Header().Set(frameOptionsHeader, c.opts.frame)
c.h.ServeHTTP(w, r)
}
func ContentSecurityPolicy(o CSPOptions) func(http.Handler) http.Handler {
fn := func(h http.Handler) http.Handler {
return csp{h, o}
}
return fn
}