org.luwrain.app.twitter.Auth.java Source code

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Here is the source code for org.luwrain.app.twitter.Auth.java

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/*
   Copyright 2012-2018 Michael Pozhidaev <michael.pozhidaev@gmail.com>
    
   This file is part of LUWRAIN.
    
   LUWRAIN is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public
   License as published by the Free Software Foundation; either
   version 3 of the License, or (at your option) any later version.
    
   LUWRAIN is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   General Public License for more details.
*/

package org.luwrain.app.twitter;

//For consumer key and secret everybody should go to https://dev.twitter.com/apps

import java.io.*;

import org.luwrain.core.*;

import twitter4j.*;
import twitter4j.auth.*;
import twitter4j.conf.*;

public class Auth {
    private final Twitter twitter;
    private final ConfigurationLuwrain conf;
    private final RequestToken requestToken;
    private AccessToken accessToken = null;

    Auth(String consumerKey, String consumerSecret) throws TwitterException {
        NullCheck.notEmpty(consumerKey, "consumerKey");
        NullCheck.notNull(consumerSecret, "consumerSecret");
        conf = new ConfigurationLuwrain(consumerKey, consumerSecret, null, null);
        twitter = new TwitterFactory(conf).getInstance();
        requestToken = twitter.getOAuthRequestToken();
    }

    String getAuthorizationURL() {
        return requestToken.getAuthorizationURL();
    }

    void askForAccessToken(String pin) throws TwitterException {
        NullCheck.notNull(pin, "pin");
        if (pin.length() > 0)
            accessToken = twitter.getOAuthAccessToken(requestToken, pin);
        else
            accessToken = twitter.getOAuthAccessToken(requestToken);
    }

    String getAccessToken() {
        return accessToken.getToken();
    }

    String getAccessTokenSecret() {
        return accessToken.getTokenSecret();
    }

    public static void main(String[] args) {
        if (args.length < 2) {
            System.err.println("You must provide consumer key and consumer secret");
            return;
        }
        Twitter twitter = null;
        try {
            ConfigurationLuwrain conf = new ConfigurationLuwrain(args[0], args[1], null, null);
            twitter = new TwitterFactory(conf).getInstance();
            final RequestToken requestToken = twitter.getOAuthRequestToken();
            System.out.println("Got request token.");
            System.out.println("Request token: " + requestToken.getToken());
            System.out.println("Request token secret: " + requestToken.getTokenSecret());
            AccessToken accessToken = null;
            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
            while (accessToken == null) {
                System.out.println("Open the following URL and grant access to your account:");
                System.out.println(requestToken.getAuthorizationURL());
                System.out.print("Enter the PIN(if available) and hit enter after you granted access.[PIN]:");
                String pin = br.readLine();
                try {
                    if (pin.length() > 0) {
                        accessToken = twitter.getOAuthAccessToken(requestToken, pin);
                    } else {
                        accessToken = twitter.getOAuthAccessToken(requestToken);
                    }
                } catch (TwitterException te) {
                    if (te.getStatusCode() == 401) {
                        System.out.println("Unable to get the access token.");
                    } else {
                        te.printStackTrace();
                    }
                }
            } //while();
            System.out.println("Got access token.");
            System.out.println("Access token: " + accessToken.getToken());
            System.out.println("Access token secret: " + accessToken.getTokenSecret());
        } catch (IllegalStateException e) {
            if (!twitter.getAuthorization().isEnabled())
                System.out.println("OAuth consumer key/secret is not set.");
            else
                e.printStackTrace();
        } catch (TwitterException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}