OAuthSignaturesGeneratorPostReq.java

package com.socioboard.t_board_pro.twitterapi;

import java.net.URLEncoder;
import java.security.Key;
import java.util.List;

import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;

import org.apache.http.message.BasicNameValuePair;

public class OAuthSignaturesGeneratorPostReq {

	public static final String ENCODING = "UTF-8";
	public static final String VERSION_1_0 = "1.0";

	public static final String FORM_ENCODED = "application/x-www-form-urlencoded";

	public static final String OAUTH_CONSUMER_KEY = "oauth_consumer_key";
	public static final String OAUTH_TOKEN = "oauth_token";
	public static final String OAUTH_TOKEN_SECRET = "oauth_token_secret";
	public static final String OAUTH_SIGNATURE_METHOD = "oauth_signature_method";
	public static final String OAUTH_SIGNATURE = "oauth_signature";
	public static final String OAUTH_TIMESTAMP = "oauth_timestamp";
	public static final String OAUTH_NONCE = "oauth_nonce";
	public static final String OAUTH_VERSION = "oauth_version";
	public static final String OAUTH_CALLBACK = "oauth_callback";
	public static final String OAUTH_CALLBACK_CONFIRMED = "oauth_callback_confirmed";
	public static final String OAUTH_VERIFIER = "oauth_verifier";

	public static final String HMAC_SHA1 = "HMAC-SHA1";

	public static final String RSA_SHA1 = "RSA-SHA1";

	public String accesToken;
	public String tokenSecret;
	public String cKey, cSecret;
	public String url, method;

	public String currentTimeStamp, currentOnonce;

	public OAuthSignaturesGeneratorPostReq(String accesToken,
			String tokenSecret, String cKey, String cSecret, String method) {

		super();
		this.accesToken = accesToken;
		this.tokenSecret = tokenSecret;
		this.cKey = cKey;
		this.method = method;
		this.cSecret = cSecret;

	}

	public String getOauthSignature(List<BasicNameValuePair> peramPairs) {

		String oAuthSignature = null;

		// * * * 1 * * * *

		String GeneratedPerams = gentratedPerams(peramPairs);

		// * * * 2 * * * *

		String baseString = generateBaseString(GeneratedPerams);

		// * * * 3 * * * *

		String singningKey = genrateSigningKey();

		// * * * 4 * * * *

		oAuthSignature = getCalcShaHash(baseString, singningKey);

		// * * * Done * * * *

		return oAuthSignature;
	}

	String gentratedPerams(List<BasicNameValuePair> peramPairs) {

		String GeneratedPerams = "";


		GeneratedPerams = GeneratedPerams + "&" + OAUTH_CONSUMER_KEY + "="
				+ URLEncoder.encode(getcKey()) + "&" + OAUTH_NONCE + "="
				+ URLEncoder.encode(currentOnonce) + "&"
				+ OAUTH_SIGNATURE_METHOD + "=" + URLEncoder.encode(HMAC_SHA1)
				+ "&" + OAUTH_TIMESTAMP + "="
				+ URLEncoder.encode(currentTimeStamp) + "&" + OAUTH_TOKEN + "="
				+ URLEncoder.encode(getAccesToken()) + "&" + OAUTH_VERSION
				+ "=" + URLEncoder.encode(VERSION_1_0);
	
		if (peramPairs.size() > 0) {

			for (int i = 0; i < peramPairs.size(); ++i) {

				if (i == 0) {

					GeneratedPerams = peramPairs.get(i).getName()+ "=" + URLEncoder.encode(peramPairs.get(i).getValue()).replace("+", "%20");

				} else {

					GeneratedPerams = GeneratedPerams
							+ "&"
							+ peramPairs.get(i).getName()
							+ "="
							+ URLEncoder.encode(peramPairs.get(i).getValue())
									.replace("+", "%20");

				}

			}
		}

		System.out.println("GeneratedPerams = " + GeneratedPerams);

		return GeneratedPerams;
	}

	String generateBaseString(String peramsUrl) {

		String baseString = null;

		// System.out.println("URLEncoder.encode("+url+") = "+
		// URLEncoder.encode(url ));

		baseString = method + "&" + URLEncoder.encode(url) + "&"
				+ URLEncoder.encode(peramsUrl);

		// System.out.println("baseString = "+ baseString);

		return baseString;
	}

	String genrateSigningKey() {

		String singningKey = null;

		singningKey = URLEncoder.encode(cSecret) + "&"
				+ URLEncoder.encode(tokenSecret);

		System.out.println("genrateSigningKey = " + singningKey);

		return singningKey;
	}

	public String getAccesToken() {

		return accesToken;
	}

	public void setAccesToken(String accesToken) {
		this.accesToken = accesToken;
	}

	public String getAcessSecret() {
		return tokenSecret;
	}

	public void setAcessSecret(String tokenSecret) {
		this.tokenSecret = tokenSecret;
	}

	public String getcKey() {
		return cKey;
	}

	public void setcKey(String cKey) {
		this.cKey = cKey;
	}

	public String getUrl() {
		return url;
	}

	public void setUrl(String url) {

		currentTimeStamp = calcTstamp();

		currentOnonce = calcOnonce();

		this.url = url;
	}

	public String calcTstamp() {

		return new String("" + System.currentTimeMillis() / 1000);
	}

	public String calcOnonce() {

		String oNonce = new String("" + (System.currentTimeMillis()) / 1000
				* 55);

		System.out.println("getOnonce = " + oNonce);

		return oNonce;
	}

	public String getCalcShaHash(String data, String key) {

		String oAuthSignature = null;

		try {

			Key signingKey = new SecretKeySpec(key.getBytes(), HMAC_SHA1);

			Mac mac = Mac.getInstance(HMAC_SHA1);

			mac.init(signingKey);

			byte[] rawHmac = mac.doFinal(data.getBytes());

			// Done
			String noUrlEncoding = Base64.encodeBytes(rawHmac);

			// Dircet
			oAuthSignature = noUrlEncoding;

			// perencoded
			// oAuthSignature = URLEncoder.encode(noUrlEncoding,"ISO-8859-1");

			System.out.println("getCalcShaHash = " + oAuthSignature);

		} catch (Exception e) {

			e.printStackTrace();

			System.out.println("Exception = " + e);

		}

		return oAuthSignature;
	}
}