Ejemplos de código para el SDK para móviles de AWS WAF

let url: URL = URL(string: "Web ACL integration URL")!
let configuration = WAFConfiguration(applicationIntegrationUrl: url, domainName: "Domain name")
let tokenProvider = WAFTokenProvider(configuration)

//onTokenReady can be add as an observer for UIApplication.willEnterForegroundNotification
self.tokenProvider.onTokenReady() { token, error in
	if let token = token {
	//token available
	}

	if let error = error {
	//error occurred after exhausting all retries
	}
}

//getToken()
let token = tokenProvider.getToken()

Ejemplo de Java:

String applicationIntegrationURL = "Web ACL integration URL";
//Or
URL applicationIntegrationURL = new URL("Web ACL integration URL");

String domainName = "Domain name";

WAFConfiguration configuration = WAFConfiguration.builder().applicationIntegrationURL(applicationIntegrationURL).domainName(domainName).build();
WAFTokenProvider tokenProvider = new WAFTokenProvider(Application context, configuration);

// implement a token result callback
WAFTokenResultCallback callback = (wafToken, error) -> {
	if (wafToken != null) {
	// token available
	} else {  
	// error occurred in token refresh  
	}
};

// Add this callback to application creation or activity creation where token will be used
tokenProvider.onTokenReady(callback);

// Once you have token in token result callback
// if background refresh is enabled you can call getToken() from same tokenprovider object
// if background refresh is disabled you can directly call getToken()(blocking call) for new token
WAFToken token = tokenProvider.getToken();

Ejemplo de Kotlin:

import com.amazonaws.waf.mobilesdk.token.WAFConfiguration
import com.amazonaws.waf.mobilesdk.token.WAFTokenProvider

private lateinit var wafConfiguration: WAFConfiguration
private lateinit var wafTokenProvider: WAFTokenProvider

private val WAF_INTEGRATION_URL = "Web ACL integration URL"
private val WAF_DOMAIN_NAME = "Domain name"

fun initWaf() {
	// Initialize the tokenprovider instance
	val applicationIntegrationURL = URL(WAF_INTEGRATION_URL)
	wafConfiguration =
		WAFConfiguration.builder().applicationIntegrationURL(applicationIntegrationURL)
			.domainName(WAF_DOMAIN_NAME).backgroundRefreshEnabled(true).build()
	wafTokenProvider = WAFTokenProvider(getApplication(), wafConfiguration)
	
		// getToken from tokenprovider object
		println("WAF: "+ wafTokenProvider.token.value)
	
		// implement callback for where token will be used
		wafTokenProvider.onTokenReady {
			wafToken, sdkError ->
		run {
			println("WAF Token:" + wafToken.value)
		}
	}
}

Cuando setTokenCookie es TRUE, el proveedor de tokens almacena el token de AWS WAF en HTTPCookieStorage.shared e incluye automáticamente la cookie en las solicitudes al dominio que especificó en WAFConfiguration.

let request = URLRequest(url: URL(string: domainEndpointUrl)!)
//The token cookie is set automatically as cookie header
let task = URLSession.shared.dataTask(with: request) { data, urlResponse, error  in
}.resume()

Cuando setTokenCookie es TRUE, el proveedor de tokens almacena el token de AWS WAF en una instancia CookieHandler que se comparte en toda la aplicación. Cuando el proveedor de tokens incluye automáticamente la cookie en las solicitudes al dominio que especificó en WAFConfiguration.

Ejemplo de Java:

URL url = new URL("Domain name");
//The token cookie is set automatically as cookie header
HttpsURLConnection connection = (HttpsURLConnection) url.openConnection();
connection.getResponseCode();

Ejemplo de Kotlin:

val url = URL("Domain name")
//The token cookie is set automatically as cookie header
val connection = (url.openConnection() as HttpsURLConnection)
connection.responseCode

Si ya tiene inicializada la instancia predeterminada CookieHandler, el proveedor de tokens la usará para administrar las cookies. De lo contrario, el proveedor de tokens inicializará una nueva instancia CookieManager con el token de AWS WAF y CookiePolicy.ACCEPT_ORIGINAL_SERVER, y, a continuación, establecerá esta nueva instancia como la instancia predeterminada en CookieHandler.

El siguiente código muestra cómo el SDK inicializa el administrador de cookies y el controlador de cookies cuando no están disponibles en su aplicación.

Ejemplo de Java:

CookieManager cookieManager = (CookieManager) CookieHandler.getDefault();
if (cookieManager == null) {
	// Cookie manager is initialized with CookiePolicy.ACCEPT_ORIGINAL_SERVER
	cookieManager = new CookieManager();
	CookieHandler.setDefault(cookieManager);
}

Ejemplo de Kotlin:

var cookieManager = CookieHandler.getDefault() as? CookieManager
if (cookieManager == null) {
	// Cookie manager is initialized with CookiePolicy.ACCEPT_ORIGINAL_SERVER
	cookieManager = CookieManager()
	CookieHandler.setDefault(cookieManager)
}

var request = URLRequest(url: wafProtectedEndpoint)
request.setValue("aws-waf-token=token from token provider", forHTTPHeaderField: "Cookie")
request.httpShouldHandleCookies = true
URLSession.shared.dataTask(with: request) { data, response, error in }

Ejemplo de Java:

URL url = new URL("Domain name");
HttpsURLConnection connection = (HttpsURLConnection) url.openConnection();
String wafTokenCookie = "aws-waf-token=token from token provider";
connection.setRequestProperty("Cookie", wafTokenCookie);
connection.getInputStream();

Ejemplo de Kotlin:

val url = URL("Domain name")
val connection = (url.openConnection() as HttpsURLConnection)
val wafTokenCookie = "aws-waf-token=token from token provider"
connection.setRequestProperty("Cookie", wafTokenCookie)
connection.inputStream