// NewContext returns a context carrying authentication information for the request.
func (a *BasicAuth) NewContext(ctx context.Context, r *http.Request) context.Context {
info := &Info{Username: a.CheckAuth(r), ResponseHeaders: make(http.Header)}
info.Authenticated = (info.Username != "")
if !info.Authenticated {
info.ResponseHeaders.Set("WWW-Authenticate", `Basic realm="`+a.Realm+`"`)
}
return context.WithValue(ctx, infoKey, info)
}
// NewContext returns a context carrying authentication information for the request.
func (a *DigestAuth) NewContext(ctx context.Context, r *http.Request) context.Context {
username, authinfo := a.CheckAuth(r)
info := &Info{Username: username, ResponseHeaders: make(http.Header)}
if username != "" {
info.Authenticated = true
info.ResponseHeaders.Set("Authentication-Info", *authinfo)
} else {
// return back digest WWW-Authenticate header
if len(a.clients) > a.ClientCacheSize+a.ClientCacheTolerance {
a.Purge(a.ClientCacheTolerance * 2)
}
nonce := RandomKey()
a.clients[nonce] = &digest_client{nc: 0, last_seen: time.Now().UnixNano()}
info.ResponseHeaders.Set("WWW-Authenticate",
fmt.Sprintf(`Digest realm="%s", nonce="%s", opaque="%s", algorithm="MD5", qop="auth"`,
a.Realm, nonce, a.Opaque))
}
return context.WithValue(ctx, infoKey, info)
}