Files
2022-01-19 22:58:07 +11:00

84 lines
3.4 KiB
Go

package middleware
import (
"fmt"
. "github.com/mickael-kerjean/filestash/server/common"
"net/http"
"path/filepath"
)
func ApiHeaders(fn func(App, http.ResponseWriter, *http.Request)) func(ctx App, res http.ResponseWriter, req *http.Request) {
return func(ctx App, res http.ResponseWriter, req *http.Request) {
header := res.Header()
header.Set("Content-Type", "application/json")
header.Set("Cache-Control", "no-cache")
fn(ctx, res, req)
}
}
func StaticHeaders(fn func(App, http.ResponseWriter, *http.Request)) func(ctx App, res http.ResponseWriter, req *http.Request) {
return func(ctx App, res http.ResponseWriter, req *http.Request) {
header := res.Header()
header.Set("Content-Type", GetMimeType(filepath.Ext(req.URL.Path)))
header.Set("Cache-Control", "max-age=2592000")
fn(ctx, res, req)
}
}
func IndexHeaders(fn func(App, http.ResponseWriter, *http.Request)) func(ctx App, res http.ResponseWriter, req *http.Request) {
return func(ctx App, res http.ResponseWriter, req *http.Request) {
header := res.Header()
header.Set("Content-Type", "text/html")
header.Set("Cache-Control", "no-cache")
header.Set("Referrer-Policy", "same-origin")
header.Set("X-Content-Type-Options", "nosniff")
header.Set("X-XSS-Protection", "1; mode=block")
header.Set("X-Powered-By", fmt.Sprintf("Filestash/%s.%s <https://filestash.app>", APP_VERSION, BUILD_DATE))
cspHeader := "default-src 'none'; "
cspHeader += "style-src 'self' 'unsafe-inline'; "
cspHeader += "font-src 'self' data:; "
cspHeader += "manifest-src 'self'; "
cspHeader += "script-src 'self' 'sha256-JNAde5CZQqXtYRLUk8CGgyJXo6C7Zs1lXPPClLM1YM4=' 'sha256-9/gQeQaAmVkFStl6tfCbHXn8mr6PgtxlH+hEp685lzY=' 'sha256-ER9LZCe8unYk8AJJ2qopE+rFh7OUv8QG5q3h6jZeoSk='; "
cspHeader += "img-src 'self' blob: data: https://maps.wikimedia.org; "
cspHeader += "connect-src 'self'; "
cspHeader += "object-src 'self'; "
cspHeader += "media-src 'self' blob:; "
cspHeader += "worker-src 'self' blob:; "
cspHeader += "form-action 'self'; base-uri 'self'; "
cspHeader += "frame-src 'self'; "
header.Set("Content-Security-Policy", cspHeader)
fn(ctx, res, req)
}
}
func SecureHeaders(fn func(App, http.ResponseWriter, *http.Request)) func(ctx App, res http.ResponseWriter, req *http.Request) {
return func(ctx App, res http.ResponseWriter, req *http.Request) {
if host := Config.Get("general.host").String(); host != "" {
if req.Host != host && req.Host != fmt.Sprintf("%s:443", host) {
Log.Error("Request coming from \"%s\" was blocked, only traffic from \"%s\" is allowed. You can change this from the admin console under configure -> host", req.Host, host)
SendErrorResult(res, ErrNotAllowed)
return
}
}
header := res.Header()
if Config.Get("general.force_ssl").Bool() {
header.Set("Strict-Transport-Security", "max-age=31536000; includeSubDomains; preload")
}
header.Set("X-Content-Type-Options", "nosniff")
header.Set("X-XSS-Protection", "1; mode=block")
fn(ctx, res, req)
}
}
func SecureAjax(fn func(App, http.ResponseWriter, *http.Request)) func(ctx App, res http.ResponseWriter, req *http.Request) {
return func(ctx App, res http.ResponseWriter, req *http.Request) {
if req.Header.Get("X-Requested-With") != "XmlHttpRequest" {
Log.Warning("Intrusion detection: %s - %s", req.RemoteAddr, req.URL.String())
SendErrorResult(res, ErrNotAllowed)
return
}
fn(ctx, res, req)
}
}