authentication AWS method Rest DSL - json

Question

I have a question regarding Restful services
I need to upload CSV files to an AWS server. I am registered with account.
First I need to obtain an access token and use that to upload the files. I have not coded anything yet, trying to understand the best approach, I so hope to use Camel-Rest-DSL. It is required to communicate with JSON. But, the authentication part has me stuck, I’m pretty sure it uses OAuth2 auth, RestFul web service and JSON, this should just be a client, I was looking at WSS4J for JAX-RS OAuth2 but I don’t know.
I’ve done it with postman, this is the scenario. The username and password are fictional
*Get Access Token
uses POST verb
requires Token Request URL
uses Basic Auth requires Username = Client ID of tenant ( needs to be encoded base64 )
HEADER parm Content-Type = x-www-form-urlencoded
Content-Type': 'application/x-www-form-urlencoded',
'Authorization': 'Basic ' + encoded Client ID
Access Token body - grant_type, username, password
Body = username = 5c0642fe-a495-44db-93f7-67034556fa2c061_ingestor
password = 154f0252d166f27b5e21ef171b03212a79f41a0daf3
grant_type = password
#returns the access_token as JSON
POST or upload files
uses POST verb
requires Ingestion URL UploadURL
UploadURL=https://apm-ts-query-svc-prd.app-api.aws-usw02-pr.something.io/v2/time_series/
UploadFolder=upload
headers =
key Authentication "Bearer + access Token" (from request access token above)
key Tenant = TenantUUID
key X-GE-CsvFormat = ODB
# Body
form-data
key file=file
# POST DATA
headers content-type application/json
authorization: "" + token
tenant: "" + tenant
My environment
Jboss Fuse 6.3-310
Karaf version 2.4.0.redhat-630310
JVM
Java Virtual Machine Java HotSpot(TM) 64-Bit Server VM version 25.162-
b12
Version 1.8.0_162
Vendor Oracle Corporation
Operating system
Name Linux version 2.6.32-696.20.1.el6.x86_64

Answer 1

I can't use OAuth2/SAML assertions so I will simply request a token and cache it and use it later. this is my test code
#Override
public void configure() throws Exception {
//Configure the Rest Web Service Component transport to use a REST implementation
restConfiguration() //Configures the REST DSL to use a specific REST implementation
.component("jetty") //Specifies the Camel component to use as the REST transport
.host("localhost") //The hostname to use for exposing the REST service
.port("8282") //The port number to use for exposing the REST service JMX tooling
.scheme("https") //The protocol to use for exposing the REST service
.contextPath("/oauth/token") //Sets a leading context path for the REST services
.bindingMode(RestBindingMode.json) //Enables binding mode for JSON
.jsonDataFormat("json-jackson") //Specifies the component that Camel uses to implement the JSON data format
.dataFormatProperty("prettyPrint", "true"); //set arbitrary properties on the underlying data format component
//Configure the Rest Endpoint
rest("/oauth") //Defines a service using the REST DSL. Each of the verb clauses are terminated by a to() keyword,
//which forwards the incoming message to an endpoint
.post("/token")
.produces("application/json")
.consumes("application/json")
.type(TokenEntities.class)
.route()
.routeId("Get Auth Token Route")
.autoStartup(true)
.id("Get Auth Token Service")
.description("Get Authorization Token")
.process(new UAARequestTokenProcessor())
.to("https://d1e53858-2903-4c21-86c0-95edc7a5cef2.pager-uaa.run.aws-usw02-pr.ice.pager.io/oauth/token")
.to("log:logger?showBody=true")
.to("direct:accessToken")
.endRest();
//Define the Route - from() Defines a regular Camel route.
from("direct:accessToken").to("log:logger?showBody=true"); }
public class UAARequestTokenProcessor implements Processor {
private static final Logger LOG = LoggerFactory.getLogger(UAARequestTokenProcessor.class);
private String clientId = "myClientID";
private String userName = "myUserName";
private String password = "myPassword";
#Override
public void process(Exchange exchange) throws Exception {
LOG.info("Processing UAA token request for " + clientId + " and " + userName);
Message msg = exchange.getOut(); //create outbound message exchange
StringBuilder authHeader = new StringBuilder("Basic ");
authHeader.append(Base64.getEncoder().encodeToString((clientId + ":").getBytes("UTF_8")));
String body = String.format("grant_type=password&username=%s&password=%s",
URLEncoder.encode(userName, "UTF-8"), //Translates a string into x-www-form-urlencoded format
URLEncoder.encode(password, "UTF-8"));
msg.setHeader(Exchange.CONTENT_TYPE, "MediaType.APPLICATION_FORM_URLENCODE");
msg.setHeader("Authorization", authHeader.toString());
msg.setBody(body);
}
}