vs_meetup.php

<?php
/*
 * Plugin Name: Meetup Widgets (forked for PHPSP)
 * Description: Add widgets displaying information from Meetup.com
 * Version: 2.3.3
 * Original Author: Kelly Dwan
 * Original Author URI: http://redradar.net
 * Original Plugin URI: http://redradar.net/category/plugins/meetup-widgets/
 * Author: Joao Paulo
 * Author URI: https://github.com/jpjoao/
 * Plugin URI: https://github.com/jpjoao/Meetup-Widgets/
 * License: GPL2
 * Date: 2015-07-02
 */

/** 
 * If the class exists we've declared it in another Meetup integration plugin,
 * and should not do so twice.
 */
if (!class_exists('VsMeet')):

class VsMeet {
	/* global variables */
	private $req_url = 'http://api.meetup.com/oauth/request/';
	private $authurl = 'http://www.meetup.com/authorize/';
	private $acc_url = 'http://api.meetup.com/oauth/access/';
	private $api_url = 'http://api.meetup.com/';
		
	private $key = '';
	private $secret = '';	
	protected $api_key = "";
	
	public function __construct($var = '') {
		$options = get_option('vs_meet_options');
		$this->key = $options['vs_meetup_key'];
		$this->secret = $options['vs_meetup_secret'];
		$this->api_key = $options['vs_meetup_api_key'];

		register_activation_hook( __FILE__, array ($this, 'install' ) );
		
		// TODO deal with translations.
		//load_plugin_textdomain('vsmeet_domain');
		
		// add admin page & options
		add_filter( 'admin_init' , array( $this , 'register_fields' ) );
	}
	
	public function install(){
		//nothing here yet, as there's really nothing to 'install' that isn't covered by __construct
	}
	
	function register_fields() {
		register_setting( 'general', 'vs_meet_options', array($this,'validate'));
		
		add_settings_section('vs_meet', 'Meetup API Settings', array($this, 'setting_section_vs_meetup'), 'general');
		
		add_settings_field('vs_meetup_key', '<label for="vs_meetup_key">'.__('OAuth Meetup Key:' , 'vsmeet_domain' ).'</label>' , array(&$this, 'setting_vs_meetup_key') , 'general', 'vs_meet' );
		add_settings_field('vs_meetup_secret', '<label for="vs_meetup_secret">'.__('OAuth Meetup Secret:' , 'vsmeet_domain' ).'</label>' , array(&$this, 'setting_vs_meetup_secret') , 'general', 'vs_meet' );
		
		add_settings_field('vs_meetup_api_key', '<label for="vs_meetup_api_key">'.__('Meetup API Key:' , 'vsmeet_domain' ).'</label>' , array(&$this, 'setting_vs_meetup_api_key') , 'general', 'vs_meet' );
		
	}

	function setting_section_vs_meetup(){
		echo "<p>".__("To use this plugin, you need to create an OAuth consumer. You can do that (or reset your information) by going here: <a target='_blank' href='http://www.meetup.com/meetup_api/oauth_consumers/'>Your OAuth Consumers</a>",'vsmeet_domain')."</p>";
	}

	function setting_vs_meetup_key() {
		$options = get_option('vs_meet_options');
		echo "<input id='vs_meetup_key' name='vs_meet_options[vs_meetup_key]' size='40' type='text' value='{$options['vs_meetup_key']}' />";
	}
	function setting_vs_meetup_secret() {
		$options = get_option('vs_meet_options');
		echo "<input id='vs_meetup_secret' name='vs_meet_options[vs_meetup_secret]' size='40' type='text' value='{$options['vs_meetup_secret']}' />";
	}
	function setting_vs_meetup_api_key() {
		$options = get_option('vs_meet_options');
		echo "<input id='vs_meetup_api_key' name='vs_meet_options[vs_meetup_api_key]' size='40' type='text' value='{$options['vs_meetup_api_key']}' />";
	}

	/**
	 * Sanitize and validate input. 
	 * @param array $input an array to sanitize
	 * @return array a valid array.
	 */
	public function validate($input) {
		$output = array();
		if ( preg_match('/^[a-zA-Z0-9]{0,40}$/i', $input['vs_meetup_key']) )
			$output['vs_meetup_key'] = $input['vs_meetup_key'];
		if ( preg_match('/^[a-zA-Z0-9]{0,40}$/i', $input['vs_meetup_secret']) )
			$output['vs_meetup_secret'] = $input['vs_meetup_secret'];
		if ( preg_match('/^[a-zA-Z0-9]{0,40}$/i', $input['vs_meetup_api_key']) )
			$output['vs_meetup_api_key'] = $input['vs_meetup_api_key'];
	    return $output;
	}
	
}
endif;

require_once('vs_meetup_widgets.php');

/**
 * Initialize Meetup Widgets
 */
function meetup_widgets_start() {
	if (!class_exists('OAuth')){
		add_action('pre_current_active_plugins','vsmw_need_oauth');
	} 
	$vsmw = new VsMeetWidget();

} add_action( 'init', 'meetup_widgets_start' );

// Register widgets
add_action('widgets_init', create_function('', 'return register_widget("VsMeetSingleWidget");'));
add_action('widgets_init', create_function('', 'return register_widget("VsMeetListWidget");'));
add_action('widgets_init', create_function('', 'return register_widget("VsMeetUserListWidget");'));
add_action('widgets_init', create_function('', 'return register_widget("VsMeetNextSingleWidget");'));
add_action('widgets_init', create_function('', 'return register_widget("VsMeetGroupsListWidget");'));


function vsmw_need_oauth() {
	echo '<div id="message" class="updated"><p>Some functionality of <strong>Meetup Login</strong> requires <strong><a href="http://php.net/manual/en/book.oauth.php">OAuth</a></strong>, which is not detected on this server. RSVPing from this site is disabled - RSVP links will instead bring you to the event on Meetup.com.</p></div>';
}

//Translations
global $_meetup_widget;
$_meetup_widget['en_US'] = array(
    'attendee' => 'attendee',
    'attendees' => 'attendees',
    'rsvp' => 'RSVP?',
    'location' => 'Location',
    'tba' => 'TBA',
);
$_meetup_widget['pt_BR'] = array(
    'attendee' => 'confirmado',
    'attendees' => 'confirmados',
    'rsvp' => 'RSVP?',
    'location' => 'Local',
    'tba' => 'a definir',
);