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Move security headers to the start of the router

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Daniel 2022-08-01 11:03:37 +02:00
parent 2431914756
commit 119dbaef97
1 changed files with 18 additions and 18 deletions
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36
api/router.go
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@ -105,6 +105,24 @@ func (mh *mainHandler) handle(w http.ResponseWriter, r *http.Request) error {
tracer.Submit()
}()
// Add security headers.
w.Header().Set("Referrer-Policy", "no-referrer")
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("X-DNS-Prefetch-Control", "off")
// Add CSP Header in production mode.
if !devMode() {
w.Header().Set(
"Content-Security-Policy",
"default-src 'self'; "+
"connect-src https://*.safing.io 'self'; "+
"style-src 'self' 'unsafe-inline'; "+
"img-src 'self' data:",
)
}
// Check Cross-Origin Requests.
origin := r.Header.Get("Origin")
isPreflighCheck := false
@ -202,24 +220,6 @@ func (mh *mainHandler) handle(w http.ResponseWriter, r *http.Request) error {
return nil
}
// Add security headers.
w.Header().Set("Referrer-Policy", "no-referrer")
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("X-DNS-Prefetch-Control", "off")
// Add CSP Header in production mode.
if !devMode() {
w.Header().Set(
"Content-Security-Policy",
"default-src 'self'; "+
"connect-src https://*.safing.io 'self'; "+
"style-src 'self' 'unsafe-inline'; "+
"img-src 'self' data:",
)
}
// At this point we know the method is allowed and there's a handler for the request.
// If this is just a CORS-Preflight, we'll accept the request with StatusOK now.
// There's no point in trying to authenticate the request because the Browser will