28 lines
1005 B
Go
28 lines
1005 B
Go
package security
|
|
|
|
import "net/http"
|
|
|
|
// SecureHeaders adds a baseline of security headers.
|
|
// CSP is intentionally conservative; adjust if you add external assets.
|
|
func SecureHeaders(next http.Handler) http.Handler {
|
|
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
w.Header().Set("X-Content-Type-Options", "nosniff")
|
|
w.Header().Set("X-Frame-Options", "DENY")
|
|
w.Header().Set("Referrer-Policy", "no-referrer")
|
|
w.Header().Set("Permissions-Policy", "geolocation=(), microphone=(), camera=()")
|
|
w.Header().Set("Cross-Origin-Opener-Policy", "same-origin")
|
|
w.Header().Set("Cross-Origin-Resource-Policy", "same-origin")
|
|
w.Header().Set("Cross-Origin-Embedder-Policy", "require-corp")
|
|
w.Header().Set("Content-Security-Policy",
|
|
"default-src 'self'; "+
|
|
"script-src 'self'; "+
|
|
"style-src 'self'; "+
|
|
"img-src 'self' data:; "+
|
|
"object-src 'none'; "+
|
|
"base-uri 'none'; "+
|
|
"frame-ancestors 'none'; "+
|
|
"form-action 'self'")
|
|
next.ServeHTTP(w, r)
|
|
})
|
|
}
|