Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import android.net.Uri;

import android.util.Base64;
import android.util.Log;
import java.util.ArrayList;

import java.util.Collections;

import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;

public class Main {
    public static String oauthConsumerKey;
    public static String oauthSecretKey;

    private static String generateSignature(String base, String type, String nonce, String timestamp, String token,
            String tokenSecret, String verifier, ArrayList<String> parameters)
            throws NoSuchAlgorithmException, InvalidKeyException {
        String encodedBase = Uri.encode(base);

        StringBuilder builder = new StringBuilder();

        //Create an array of all the parameters
        //So that we can sort them
        //OAuth requires that we sort all parameters
        ArrayList<String> sortingArray = new ArrayList<String>();

        sortingArray.add("oauth_consumer_key=" + oauthConsumerKey);
        sortingArray.add("oauth_nonce=" + nonce);
        sortingArray.add("oauth_signature_method=HMAC-SHA1");
        sortingArray.add("oauth_timestamp=" + timestamp);
        sortingArray.add("oauth_version=1.0");

        if (parameters != null) {
            sortingArray.addAll(parameters);
        }

        if (token != "" && token != null) {
            sortingArray.add("oauth_token=" + token);
        }
        if (verifier != "" && verifier != null) {
            sortingArray.add("oauth_verifier=" + verifier);
        }

        Collections.sort(sortingArray);

        //Append all parameters to the builder in the right order
        for (int i = 0; i < sortingArray.size(); i++) {
            if (i > 0)
                builder.append("&" + sortingArray.get(i));
            else
                builder.append(sortingArray.get(i));

        }

        String params = builder.toString();
        //Percent encoded the whole url
        String encodedParams = Uri.encode(params);

        String completeUrl = type + "&" + encodedBase + "&" + encodedParams;

        String completeSecret = oauthSecretKey;

        if (tokenSecret != null && tokenSecret != "") {
            completeSecret = completeSecret + "&" + tokenSecret;
        } else {
            completeSecret = completeSecret + "&";
        }

        Log.v("Complete URL: ", completeUrl);
        Log.v("Complete Key: ", completeSecret);

        Mac mac = Mac.getInstance("HmacSHA1");
        SecretKeySpec secret = new SecretKeySpec(completeSecret.getBytes(), mac.getAlgorithm());
        mac.init(secret);
        byte[] sig = mac.doFinal(completeUrl.getBytes());

        String signature = Base64.encodeToString(sig, 0);
        signature = signature.replace("+", "%2b"); //Specifically encode all +s to %2b

        return signature;
    }
}