HTTP
All HTTP-based communication should be protected with using TLS.
This section covers details about using WebFlux-specific features that assist with HTTPS usage.
Redirect to HTTPS
If a client makes a request using HTTP rather than HTTPS, you can configure Spring Security to redirect to HTTPS.
The following Java configuration redirects any HTTP requests to HTTPS:
-
Java
-
Kotlin
@Bean
SecurityWebFilterChain springSecurityFilterChain(ServerHttpSecurity http) {
http
// ...
.redirectToHttps(withDefaults());
return http.build();
}
@Bean
fun springSecurityFilterChain(http: ServerHttpSecurity): SecurityWebFilterChain {
return http {
// ...
redirectToHttps { }
}
}
You can wrap the configuration can be wrapped around an if
statement to be turned on only in production.
Alternatively, you can enable it by looking for a property about the request that happens only in production.
For example, if the production environment adds a header named X-Forwarded-Proto
, you should use the following Java Configuration:
-
Java
-
Kotlin
@Bean
SecurityWebFilterChain springSecurityFilterChain(ServerHttpSecurity http) {
http
// ...
.redirectToHttps(redirect -> redirect
.httpsRedirectWhen(e -> e.getRequest().getHeaders().containsKey("X-Forwarded-Proto"))
);
return http.build();
}
@Bean
fun springSecurityFilterChain(http: ServerHttpSecurity): SecurityWebFilterChain {
return http {
// ...
redirectToHttps {
httpsRedirectWhen {
it.request.headers.containsKey("X-Forwarded-Proto")
}
}
}
}
Strict Transport Security
Spring Security provides support for Strict Transport Security and enables it by default.
Proxy Server Configuration
Spring Security integrates with proxy servers.