plugin.php

<?php
/**
 * @wordpress-plugin
 * Plugin Name: Sailthru for WordPress (HTV)
 * Plugin URI: http://sailthru.com/
 * Description: Add the power of Sailthru to your WordPress set up.
 * Version: 3.3.0
 * Author: Sailthru
 * Author URI: http://sailthru.com
 * Author Email: integrations@sailthru.com
 * License:
 *
 * Copyright 2013 (Sailthru)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License, version 2, as
 * published by the Free Software Foundation.
 *
 * This program 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 **/


/**
 * The current version of the plugin.
 *
 * @since 3.0.6
 * @var   string $version The current version of the plugin.
 */
if ( ! defined( 'SAILTHRU_PLUGIN_VERSION' ) ) {
	define( 'SAILTHRU_PLUGIN_VERSION', '3.3.0' );
}

if ( ! defined( 'SAILTHRU_PLUGIN_PATH' ) ) {
	define( 'SAILTHRU_PLUGIN_PATH', plugin_dir_path( __FILE__ ) );
}

if ( ! defined( 'SAILTHRU_PLUGIN_URL' ) ) {
	define( 'SAILTHRU_PLUGIN_URL', plugin_dir_url( __FILE__ ) );
}


/*
 * Sailthru PHP5 Developer Library.
 * Source: http://getstarted.sailthru.com/developers/client-libraries/set-config-file/php5.
 */
require_once SAILTHRU_PLUGIN_PATH . 'lib/Sailthru_Util.php';
require_once SAILTHRU_PLUGIN_PATH . 'lib/Sailthru_Client.php';
require_once SAILTHRU_PLUGIN_PATH . 'lib/Sailthru_Client_Exception.php';
require_once SAILTHRU_PLUGIN_PATH . 'classes/class-wp-sailthru-client.php';

/*
 * Get Sailthru for WordPress plugin classes
 */
require_once SAILTHRU_PLUGIN_PATH . 'classes/class-sailthru-horizon.php';
require_once SAILTHRU_PLUGIN_PATH . 'classes/class-sailthru-concierge.php';
require_once SAILTHRU_PLUGIN_PATH . 'classes/class-sailthru-scout.php';
require_once SAILTHRU_PLUGIN_PATH . 'classes/class-sailthru-mailer.php';

/*
 * Get Sailthru Custom Subscribe Fields classes
 */
require_once SAILTHRU_PLUGIN_PATH . 'classes/class-sailthru-subscribe-fields.php';

/*
 * Sailthru for WordPress admin view settings and registrations.
 */
require_once SAILTHRU_PLUGIN_PATH . 'views/admin.functions.php';

/*
 * Grab and activate the Sailthru Subscribe widget.
 */
require_once SAILTHRU_PLUGIN_PATH . 'widget.subscribe.php';

/*
 * Add the email handler
 */
require_once SAILTHRU_PLUGIN_PATH . 'sailthru_mail.php';


/*
 * Horizon handles the foundational actions like adding menus, meta tags,
 * and javascript files.
 */
if ( class_exists( 'Sailthru_Horizon' ) ) {

	$sailthru_horizon = new Sailthru_Horizon();

	// add a record in the db to keep track of the version of this plugin
	if ( false === get_option( 'sailthru_plugin_version' ) ) {
		add_option( 'sailthru_plugin_version', SAILTHRU_PLUGIN_VERSION );
	} else {
		update_option( 'sailthru_plugin_version', SAILTHRU_PLUGIN_VERSION );
	} // end if

	if ( class_exists( 'Sailthru_Scout' ) ) {
		$sailthru_scout = new Sailthru_Scout();
	}
}


/**
 * Register hooks that are fired when the plugin is activated,
 * deactivated, and uninstalled, respectively.
 */
register_activation_hook( __FILE__, [ 'Sailthru_Horizon', 'activate' ] );
register_deactivation_hook( __FILE__, [ 'Sailthru_Horizon', 'deactivate' ] );
register_uninstall_hook( __FILE__, [ 'Sailthru_Horizon', 'uninstall' ] );


// This is called from sailthru_setup_handler()
function sailthru_create_wordpress_template() {

	$wordpress_template = 'WordPress Template';

	if ( sailthru_verify_setup() ) {

		$sailthru   = get_option( 'sailthru_setup_options' );
		$api_key    = $sailthru['sailthru_api_key'];
		$api_secret = $sailthru['sailthru_api_secret'];

		$client = new WP_Sailthru_Client( $api_key, $api_secret );

		// Find out if 'WordPress Template' already exists
		$template_exists = false;

		try {
			if ( $client ) {
				// if we try to grab a template by name that doesn't exist
				// the world blows up. Grab them all and loop through
				$response  = $client->getTemplates();
				$templates = $response['templates'];
				foreach ( $templates as $template ) {
					foreach ( $template as $key => $value ) {
						if ( 'name' === $key ) {
							if ( $value === $wordpress_template ) {
								$template_exists = true;
							}
						}
					}
				}
			}
		} catch ( Sailthru_Client_Exception $e ) {
			//silently fail
			return;
		}

		// the Template doesn't exist, so we need to create it.
		if ( false === $template_exists ) {

			try {
				if ( $client ) {
					$client->saveTemplate(
						'wordpress-template',
						[
							'name'         => $wordpress_template,
							'subject'      => '{subject}',
							'content_html' => "<html>\n<head>\n<body>\n{body}\n</body>\n</html>",
						]
					);
				}
			} catch ( Sailthru_Client_Exception $e ) {
				//silently fail
				return;
			}
		}
	}

}


// Add and action to handle when a user logs in.
add_action( 'wp_login', 'sailthru_user_login', 10, 2 );


function sailthru_user_login( $user_login, $user ) {
	if ( get_option( 'sailthru_setup_complete' ) ) {
		$sailthru   = get_option( 'sailthru_setup_options' );
		$api_key    = $sailthru['sailthru_api_key'];
		$api_secret = $sailthru['sailthru_api_secret'];

		$client = new WP_Sailthru_Client( $api_key, $api_secret );

		$id      = $user->user_email;
		$options = [
			'login'  => [
				'user_agent' => sanitize_text_field( $_SERVER['HTTP_USER_AGENT'] ),
				'key'        => 'email',
				'ip'         => sanitize_text_field( $_SERVER['SERVER_ADDR'] ),
				'site'       => sanitize_text_field( $_SERVER['HTTP_HOST'] ),
			],
			'fields' => [ 'keys' => 1 ],
		];

		try {
			if ( $client ) {
				$st = $client->saveUser( $id, $options );
			}
		} catch ( Sailthru_Client_Exception $e ) {
			//silently fail.
			return;
		}
	}
}


/**
 * Capture the saving of a post and make a Content API call to add
 * the page details and tags to Sailthru's Horizon API for recommendations
 *
 * @param integer $post_id
 */

function sailthru_save_post( $post_id, $post, $post_before ) {

	// Check to see if Content API is disabled
	if ( false === apply_filters( 'sailthru_content_api_enable', true ) ) {
		return;
	}

	if ( 'publish' === $post->post_status ) {
		// Make sure Sailthru is setup
		if ( get_option( 'sailthru_setup_complete' ) ) {
			$sailthru   = get_option( 'sailthru_setup_options' );
			$api_key    = $sailthru['sailthru_api_key'];
			$api_secret = $sailthru['sailthru_api_secret'];
			$client     = new WP_Sailthru_Client( $api_key, $api_secret );
			try {
				if ( $client ) {
					$site_metadata = get_option( 'vl_metadata' );

					$data = [];
					// Prepare the Content API Params
					$data['url']               = get_permalink( $post->ID );
					$data['title']             = $post->post_title;
					$data['author']            = get_the_author_meta( 'display_name', $post->post_author );
					$data['date']              = $post->post_date;
					$data['vars']['post_type'] = $post->post_type;
					$data['vars']['postID']    = $post->ID;
					$data['vars']['siteID']    = $site_metadata['site_id'];
					$data['spider']            = 1;
					$data['description']       = ! empty( $post->post_excerpt ) ? $post->post_excerpt : $post->post_content;

					// image & thumbnail
					if ( has_post_thumbnail( $post->ID ) ) {
						$image                          = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'full' );
						$thumb                          = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'concierge-thumb' );
						$post_image                     = $image[0];
						$data['images']['full']['url']  = esc_attr( $post_image );
						$post_thumbnail                 = $thumb[0];
						$data['images']['thumb']['url'] = $post_thumbnail;
					}

					// Use categories as tags
					$post_categories = get_the_category( $post->ID );
					$post_tags = wp_list_pluck( $post_categories, 'name' );

					// Add site id to the tags
					$post_tags[] = $data['vars']['siteID'];

					$data['tags'] = join( ', ', $post_tags );

					$post_expiration = get_post_meta( $post->ID, 'sailthru_post_expiration', true );
					if ( ! empty( $post_expiration ) ) {
						$data['expire_date'] = esc_attr( $post_expiration );
					} else {
						// set the expiry date in the future as you can't unset the value via the API
						$data['expire_date'] = date( 'Y-m-d', strtotime( '+5 years' ) );
					}

					// get all the custom fields and add them to the vars
					$custom_fields = get_post_custom( $post_id );
					// exclude  tags
					$exclude_fields = [ '_edit_lock', '_edit_last', '_encloseme', 'sailthru_post_expiration' ];

					foreach ( $custom_fields as $key => $val ) {

						if ( ! in_array( $key, $exclude_fields, true ) ) {

							if ( is_array( $val ) ) {
								$data['vars'][ $key ] = implode( ',', $val );
							} else {
								$data['vars'][ $key ] = $val;
							}
						}
					}
					// Make the API call to Sailthru
					$api = $client->apiPost( 'content', $data );

				}
			} catch ( Sailthru_Client_Exception $e ) {
				//silently fail
				return;
			}
		}
	}
}

add_action( 'save_post', 'sailthru_save_post', 10, 3 );

if ( ! function_exists( 'write_log' ) ) {
	function write_log( $log ) {
		if ( defined( 'WP_DEBUG' ) && true === WP_DEBUG ) {

			if ( is_array( $log ) || is_object( $log ) ) {
				error_log( print_r( $log, true ) );
			} else {
				error_log( $log );
			}
		}
	}
}