postmatic-social.php

<?php
/*
Plugin Name: Postmatic Social Commenting
Plugin URI: https://wordpress.org/plugins/postmatic-social/
Description: A tiny, fast, and convenient way to let your readers comment using their social profiles.
Author: Postmatic, ronalfy
Author URI: https://gopostmatic.com/
Version: 1.0.2
* Text Domain: postmatic-social
 * License:     GPL-2.0+
 * License URI: http://www.gnu.org/licenses/gpl-2.0.txt
 * Domain Path: /languages
 */
class Postmatic_Social {
	/**
	 * Holds the class instance.
	 *
	 * @since 1.0.0
	 * @access static
	 * @var Postmatic_Social $instance
	 */
	private static $instance = null;

	/**
	 * Holds the URL to the admin panel page
	 *
	 * @since 1.0.0
	 * @access static
	 * @var string $url
	 */
	private static $url = '';

	/**
	 * Retrieve a class instance.
	 *
	 * Retrieve a class instance.
	 *
	 * @since 5.0.0
	 * @access static
	 *
	 * @return MPSUM_Updates_Manager Instance of the class.
	 */
	public static function get_instance() {
		if ( null == self::$instance ) {
			self::$instance = new self;
		}
		return self::$instance;
	} //end get_instance

	/**
	 * Retrieve the plugin basename.
	 *
	 * Retrieve the plugin basename.
	 *
	 * @since 1.0.0
	 * @access static
	 *
	 * @return string plugin basename
	 */
	public static function get_plugin_basename() {
		return plugin_basename( __FILE__ );
	}

	/**
	 * Class constructor.
	 *
	 * Set up internationalization, auto-loader, and plugin initialization.
	 *
	 * @since 1.0.0
	 * @access private
	 *
	 */
	private function __construct() {
		/* Localization Code */
		load_plugin_textdomain( 'postmatic-social', false, dirname( plugin_basename( __FILE__ ) ) . '/languages/' );

		add_action( 'plugins_loaded', array( $this, 'plugins_loaded' ) );
		add_action( 'prompt/core_loaded', array( $this, 'postmatic_loaded' ) );
	} //end constructor

	/**
	 * Return the absolute path to an asset.
	 *
	 * Return the absolute path to an asset based on a relative argument.
	 *
	 * @since 1.0.0
	 * @access static
	 *
	 * @param string  $path Relative path to the asset.
	 * @return string Absolute path to the relative asset.
	 */
	public static function get_plugin_dir( $path = '' ) {
		$dir = rtrim( plugin_dir_path( __FILE__ ), '/' );
		if ( !empty( $path ) && is_string( $path ) )
			$dir .= '/' . ltrim( $path, '/' );
		return $dir;
	}

	/**
	 * Return the web path to an asset.
	 *
	 * Return the web path to an asset based on a relative argument.
	 *
	 * @since 1.0.0
	 * @access static
	 *
	 * @param string  $path Relative path to the asset.
	 * @return string Web path to the relative asset.
	 */
	public static function get_plugin_url( $path = '' ) {
		$dir = rtrim( plugin_dir_url( __FILE__ ), '/' );
		if ( !empty( $path ) && is_string( $path ) )
			$dir .= '/' . ltrim( $path, '/' );
		return $dir;
	}


	/**
	 * Initialize the plugin and its dependencies.
	 *
	 * Initialize the plugin and its dependencies.
	 *
	 * @since 1.0.0
	 * @access public
	 * @see __construct
	 * @internal Uses plugins_loaded action
	 *
	 */
	public function plugins_loaded() {
		$GLOBALS[ 'pms_post_protected' ] = false;
		$GLOBALS[ 'pms_session' ] = Postmatic_Social_Comments_Session::get_instance();
		$GLOBALS[ 'postmatic-social' ] = new Postmatic_Social_Comments_Plugin( array( 'wordpress', 'gplus', 'twitter', 'facebook' ) );
		add_filter( 'pre_comment_author_email', array( $this, 'twitter_author' ) );

		//Add settings link to plugins screen
		$prefix = is_multisite() ? 'network_admin_' : '';
		add_action( $prefix . 'plugin_action_links_' . Postmatic_Social::get_plugin_basename(), array( $this, 'plugin_settings_link' ) );

	}
	
	/**
	 * Add Postmatic comment fields if Postmatic is active and has a key.
	 *
	 * @since 1.0.0
	 * @access public
	 * @see __construct
	 * @internal Uses prompt/core_loaded action
	 *
	 */
	public function postmatic_loaded() {
		if ( Prompt_Core::$options->get( 'prompt_key' ) ) {
		    add_action( 'comment_form_after_fields', array( $this, 'comment_extra_fields' ) );
		}
	}

	/**
	 * Outputs admin interface for sub-menu.
	 *
	 * Outputs admin interface for sub-menu.
	 *
	 * @since 1.0.0
	 * @access public
	 * @see __construct
	 * @internal Uses $prefix . "plugin_action_links_$plugin_file" action
	 * @return array Array of settings
	 */
	public function plugin_settings_link( $settings ) {
		$admin_anchor = sprintf( '<a href="%s">%s</a>', esc_url( $this->get_url() ), esc_html__( 'Configure', 'postmatic-social' ) );
		return array_merge( array( $admin_anchor ), $settings );
	}

	/**
	 * Return the URL to the admin panel page.
	 *
	 * Return the URL to the admin panel page.
	 *
	 * @since 1.0.0
	 * @access static
	 *
	 * @return string URL to the admin panel page.
	 */
	public static function get_url() {
		$url = self::$url;
		if ( empty( $url ) ) {
			if ( is_multisite() ) {
				$url = add_query_arg( array( 'page' => 'postmatic-social' ), network_admin_url( 'options-general.php' ) );
			} else {
				$url = add_query_arg( array( 'page' =>  'postmatic-social' ), admin_url( 'options-general.php' ) );
			}
			self::$url = $url;
		}
		return $url;
	}

	public function twitter_author( $email ) {
		if ( empty( $_POST ) || empty( $_COOKIE ) ) return $email;
		if ( !isset( $_POST[ 'email' ] ) ) return $email;

		if ( isset( $_COOKIE[ 'comment_author_email' . COOKIEHASH ] ) ) {
			$email = $_COOKIE[ 'comment_author_email' . COOKIEHASH ];
			return $email;
		} else {
			$comment_cookie_lifetime = apply_filters( 'comment_cookie_lifetime', 30000000 );
			setcookie( 'comment_author_email_' . COOKIEHASH, $_POST[ 'email' ], time() + $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN );
			setcookie( 'pms_comment_author_email', $_POST[ 'email' ], time() + $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN );
			return $_POST[ 'email' ];
		}
		return $email;


	}

	public function comment_extra_fields() {
		echo '<div class="comment-form-pms-extra">';
		echo '<div class="pms-optin">';
		printf( '<input type="checkbox" name="prompt_comment_subscribe" value="1" id="pms_comment_subscribe">&nbsp;&nbsp;' );
		printf( '<label for="pms_comment_subscribe">%s</label>', esc_html__( 'Participate in this conversation via email', 'postmatic-social' ) );
		echo '</div><!-- .pms-optin -->';
		echo '<div class="pms-optin-form">';
		esc_html_e( 'Please enter an e-mail address', 'postmatic-social' );
		echo '<input type="text" name="pms-email" value="" id="pms-email" />';
		echo '</div><!-- .pms-optin-form -->';
		echo '</div><!-- .pms-opttin -->';
	}

}


define( 'POSTMATIC_SOCIAL_SESSION_USER', 'user' );
//todo - Update this link
define( 'POSTMATIC_SOCIAL_HELP_URL', 'http://docs.gopostmatic.com/article/185-setup' );

require_once Postmatic_Social::get_plugin_dir( '/functions/Postmatic_Social_Comments_Session.php' );
require_once Postmatic_Social::get_plugin_dir( '/functions/Postmatic_Social_Comments_Plugin.php' );

Postmatic_Social::get_instance();