diff options
Diffstat (limited to 'web/web.go')
| -rw-r--r-- | web/web.go | 18 |
1 files changed, 17 insertions, 1 deletions
@@ -259,7 +259,7 @@ func NewRouter(cfg *config.Settings) http.Handler { mux.Handle("/", GzipMiddleware(AuthWrap(http.HandlerFunc(indexHandler)))) - return CSRFMiddleware(mux) + return SecurityHeadersMiddleware(CSRFMiddleware(mux)) } func Serve(cfg *config.Settings) { @@ -383,3 +383,19 @@ func CSRFMiddleware(next http.Handler) http.Handler { next.ServeHTTP(w, r) }) } + +func SecurityHeadersMiddleware(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("X-XSS-Protection", "1; mode=block") + w.Header().Set("Referrer-Policy", "strict-origin-when-cross-origin") + // Content-Security-Policy + // default-src 'self' + // style-src 'self' 'unsafe-inline' (for React/styled-components if used) + // img-src 'self' data: * (RSS images can be from anywhere) + // connect-src 'self' (API calls) + w.Header().Set("Content-Security-Policy", "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data: *; connect-src 'self'; frame-ancestors 'none';") + next.ServeHTTP(w, r) + }) +} |