com.amazonaws.tvmclient.TVMClient.java Source code

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Here is the source code for com.amazonaws.tvmclient.TVMClient.java

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/*
 * Copyright 2010-2013 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  http://aws.amazon.com/apache2.0
 * 
 * or in the "license" file accompanying this file. This file is distributed
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */
package com.amazonaws.tvmclient;

import java.security.SecureRandom;
import java.util.Locale;

import org.apache.commons.codec.binary.Hex;

import android.content.Context;

/**
* This class is used to communicate with the Token Vending Machine specific for this application. 
*/
public class TVMClient {

    /**
     * The endpoint for the Token Vending Machine to connect to.
     */
    private String endpoint;

    /**
     * Use SSL when making connections to the Token Vending Machine.
     */
    private boolean useSSL;

    /**
    * 
    */
    private String user;
    private String password;
    private String accountId;
    private String accountSecret;
    private String deviceId;
    private String deviceNick;
    private String cryptoKey;

    public TVMClient(String endpoint, boolean useSSL, String accountId, String accountSecret, String deviceId,
            String cryptoKey, String deviceNick, String user, String password) {
        this.endpoint = this.getEndpointDomainName(endpoint.toLowerCase(Locale.getDefault()));
        this.useSSL = useSSL;
        this.accountId = accountId;
        this.accountSecret = accountSecret;
        this.deviceId = deviceId;
        this.cryptoKey = cryptoKey;
        this.deviceNick = deviceNick;
        this.user = user;
        this.password = password;
    }

    /**
     * Get account id and secret for device 
     */
    public Response getAccount(Context pCtx) {

        Request getAccountRequest = new GetAccountRequest(this.endpoint, this.useSSL);
        ResponseHandler handler = new GetAccountResponseHandler();

        GetAccountResponse getAccountResponse = (GetAccountResponse) this.processRequest(pCtx, getAccountRequest,
                handler, "GET");

        return getAccountResponse;
    }

    /**
     * Anonymously register the current application/device with the Token Vending Machine.
     */
    public Response registerDevice(Context pCtx) {
        Response response = Response.SUCCESSFUL;

        RegisterDeviceRequest registerDeviceRequest = new RegisterDeviceRequest(this.endpoint, this.useSSL,
                this.accountId, this.accountSecret, this.deviceId, this.cryptoKey, this.deviceNick);
        ResponseHandler handler = new ResponseHandler();

        response = this.processRequest(pCtx, registerDeviceRequest, handler, "POST");

        return response;
    }

    public Response updateRegisterDevice(Context pCtx) {
        Response response = Response.SUCCESSFUL;

        UpdateRegisterDeviceRequest registerDeviceRequest = new UpdateRegisterDeviceRequest(this.endpoint,
                this.useSSL, this.accountId, this.deviceId, this.cryptoKey, this.deviceNick);
        ResponseHandler handler = new ResponseHandler();

        response = this.processRequest(pCtx, registerDeviceRequest, handler, "PUT");

        return response;
    }

    /**
     * Gets a token from the Token Vending Machine.  The registered key is used to secure the communication.
     */
    public Response getToken(Context pCtx) {

        Request getTokenRequest = new GetTokenRequest(this.endpoint, this.useSSL, this.deviceId, this.cryptoKey,
                this.accountId);
        ResponseHandler handler = new GetTokenResponseHandler(this.cryptoKey);

        GetTokenResponse getTokenResponse = (GetTokenResponse) this.processRequest(pCtx, getTokenRequest, handler,
                "POST");
        return getTokenResponse;
    }

    /**
     *  Process Request
     */
    protected Response processRequest(Context pCtx, Request request, ResponseHandler handler, String method) {
        Response response = null;
        int retries = 2;
        do {
            response = TVMService.sendRequest(pCtx, request, handler, method, this.user, this.password);
            if (response.requestWasSuccessful()) {
                return response;
            } else {

            }
        } while (retries-- > 0);

        return response;
    }

    private String getEndpointDomainName(String endpoint) {
        int startIndex = 0;
        int endIndex = 0;

        if (endpoint.startsWith("http://") || endpoint.startsWith("https://")) {
            startIndex = endpoint.indexOf("://") + 3;
        } else {
            startIndex = 0;
        }

        if (endpoint.charAt(endpoint.length() - 1) == '/') {
            endIndex = endpoint.length() - 1;
        } else {
            endIndex = endpoint.length();
        }

        return endpoint.substring(startIndex, endIndex);
    }
}