mastodon_autopost.php 15.9 KB
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<?php
/**
* Plugin Name: Mastodon Autopost
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* Plugin URI: https://github.com/simonfrey/mastodon_wordpress_autopost
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* Description: A Wordpress Plugin that automatically posts your new articles to Mastodon
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* Version: 3.0
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* Author: L1am0
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* Author URI: http://www.simon-frey.eu
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* License: GPL2
* Text Domain: autopost-to-mastodon
* Domain Path: /languages
*/


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require_once 'client.php';
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class autopostToMastodon
{
	public function __construct(){
		add_action( 'plugins_loaded', array($this, 'init' ) );
		add_action( 'admin_enqueue_scripts', array($this, 'enqueue_scripts' ) );
		add_action( 'admin_menu', array($this, 'configuration_page' ) );
		add_action( 'save_post', array($this, 'toot_post' ) );
		add_action( 'admin_notices', array($this, 'admin_notices' ) );
		add_action( 'add_meta_boxes', array($this, 'add_metabox' ) );
		add_action( 'publish_future_post', array($this, 'toot_scheduled_post') );
		add_action( 'wp_ajax_get_toot_preview', array($this,'get_toot_preview_ajax_handler' ));
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	}
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	/**
	 * Init
	 *
	 * Plugin initialization
	 *
	 * @return void
	 */
	public function init(){
		$plugin_dir = basename( dirname( __FILE__ ) );
		load_plugin_textdomain( 'autopost-to-mastodon', false, $plugin_dir . '/languages' );
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		if(isset($_GET['code'])){
			$code = $_GET['code'];
			$client_id = get_option('autopostToMastodon-client-id');
			$client_secret = get_option('autopostToMastodon-client-secret');
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			if(!empty($code) && !empty($client_id) && !empty($client_secret))
			{
				echo __( 'Authentification, please wait', 'autopost-to-mastodon' ) . '...';
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				update_option( 'autopostToMastodon-token', 'nada' );
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				$instance = get_option( 'autopostToMastodon-instance' );
				$client = new Client($instance);
				$token = $client->get_bearer_token($client_id, $client_secret, $code, get_admin_url());
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				if(isset($token->error)){
					print_r($token);
					//TODO: Propper error message
					update_option(
						'autopostToMastodon-notice',
						serialize(
							array(
								'message' => '<strong>Mastodon Autopost</strong> : ' . __( "Can't log you in.", 'autopost-to-mastodon' ) .
								'<p><strong>' . __( 'Instance message', 'autopost-to-mastodon' ) . '</strong> : ' . $token->error_description . '</p>',
								'class' => 'error',
							)
						)
					);
					unset($token);
					update_option('autopostToMastodon-token', '');
				}else{
					update_option('autopostToMastodon-client-id', '');
					update_option('autopostToMastodon-client-secret', '');
					update_option('autopostToMastodon-token', $token->access_token);
				}
				$redirect_url = get_admin_url().'options-general.php?page=autopost-to-mastodon';
			}
			else
			{
				//Probably hack or bad refresh, redirect to homepage
				$redirect_url = home_url();
			}
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			wp_redirect($redirect_url);
			exit;
		}
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		$token = get_option('autopostToMastodon-token');
		if (empty($token)){
			update_option(
				'autopostToMastodon-notice',
				serialize(
					array(
						'message' => '<strong>Mastodon Autopost</strong> : ' . __( 'Please login to your mastodon account!', 'autopost-to-mastodon' ) . '<a href="'.get_admin_url() . 'options-general.php?page=autopost-to-mastodon"> '. __( 'Go to Mastodon Autopost Settings', 'autopost-to-mastodon' ).'</a>',
						'class' => 'error',
					)
				)
			);
		}
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	}

	/**
	 * Enqueue_scripts
	 *
	 * @return void
	 */
	public function enqueue_scripts($hook) {

		global $pagenow;

		$infos = get_plugin_data(__FILE__);
		if($pagenow == "options-general.php"){
			//We might be on settings page <-- Do you know a bette solution to get if we are in our own settings page?
			$plugin_url = plugin_dir_url( __FILE__ );
			wp_enqueue_script( 'settings_page', $plugin_url . 'js/settings_page.js', array('jquery'), $infos['Version'], true );

		}
		if ( in_array( $pagenow, [ 'post-new.php', 'post.php' ] ) ) {
			$plugin_url = plugin_dir_url( __FILE__ );
			wp_enqueue_script( 'toot_editor', $plugin_url . 'js/toot_editor.js', array('jquery'), $infos['Version'], true );

			$title_nonce = wp_create_nonce( 'mastodonNonce' );
			wp_localize_script( 'toot_editor', 'ajax_obj', array(
				'ajax_url' => admin_url( 'admin-ajax.php' ),
				'nonce'    => $title_nonce
			) );
		}
	}

	/**
	 * Configuration_page
	 *
	 * Add the configuration page menu
	 *
	 * @return void
	 */
	public function configuration_page() {
		add_options_page(
			'Mastodon Autopost',
			'Mastodon Autopost',
			'install_plugins',
			'autopost-to-mastodon',
			array($this, 'show_configuration_page')
		);
	}

	/**
	 * Show_configuration_page
	 *
	 * Content of the configuration page
	 *
	 * @throws Exception The exception.
	 * @return void
	 */
	public function show_configuration_page() {

		wp_enqueue_style('autopostToMastodon-configuration', plugin_dir_url(__FILE__).'style.css');

		if( isset( $_GET['disconnect'] ) ) {
			update_option( 'autopostToMastodon-token' , '');
		}elseif( isset( $_GET['testToot'] ) ) {
			$this->sendTestToot();
		}

		$token = get_option( 'autopostToMastodon-token' );

		if ( isset( $_POST['save'] ) ) {

			$is_valid_nonce = wp_verify_nonce( $_POST['_wpnonce'], 'autopostToMastodon-configuration' );

			if ( $is_valid_nonce ) {
				$instance = esc_url( $_POST['instance'] );
				$message = stripslashes($_POST['message']);
				$content_warning = $_POST['content_warning'];

				$client = new Client($instance);
				$redirect_url = get_admin_url();
				$auth_url = $client->register_app($redirect_url);

				if ($auth_url == "ERROR"){
					update_option(
						'autopostToMastodon-notice',
						serialize(
							array(
								'message' => '<strong>Mastodon Autopost</strong> : ' . __( 'The given instance url belongs to no valid mastodon instance !', 'autopost-to-mastodon' ),
								'class' => 'error',
							)
						)
					);

				}else{

					if(empty($instance)){
						update_option(
							'autopostToMastodon-notice',
							serialize(
								array(
									'message' => '<strong>Mastodon Autopost</strong> : ' . __( 'Thank you to set your Mastodon instance before connect !', 'autopost-to-mastodon' ),
									'class' => 'error',
								)
							)
						);
					} else 	{
						update_option('autopostToMastodon-client-id', $client->get_client_id());
						update_option('autopostToMastodon-client-secret', $client->get_client_secret());
						update_option( 'autopostToMastodon-instance', $instance );

						update_option( 'autopostToMastodon-message', sanitize_textarea_field( $message ) );
						update_option( 'autopostToMastodon-mode', sanitize_text_field( $_POST['mode'] ) );
						update_option( 'autopostToMastodon-toot-size', (int) $_POST['size'] );

						if (isset($_POST['autopost_standard'])){
							update_option( 'autopostToMastodon-postOnStandard', 'on' );
						}else{
							update_option( 'autopostToMastodon-postOnStandard', 'off' );	
						}

						update_option( 'autopostToMastodon-content-warning', sanitize_textarea_field( $content_warning ) );

						$account = $client->verify_credentials($token);

						if( isset( $account->error ) ){
							echo '<meta http-equiv="refresh" content="0; url=' . $auth_url . '" />';
							echo __( 'Redirect to ', 'autopost-to-mastodon' ) . $instance;
							exit;
						}

					//Inform user that save was successfull
						update_option(
							'autopostToMastodon-notice',
							serialize(
								array(
									'message' => '<strong>Mastodon Autopost</strong> : ' . __( 'Configuration successfully saved !', 'autopost-to-mastodon' ),
									'class' => 'success',
								)
							)
						);

					}
				}

				$this->admin_notices();
			}
		}

		$instance = get_option( 'autopostToMastodon-instance' );

		if( !empty( $token ) ) {
			$client = new Client($instance);
			$account = $client->verify_credentials($token);
		}

		$message = get_option( 'autopostToMastodon-message', "[title]\n[excerpt]\n[permalink]\n[tags]" );
		$mode = get_option( 'autopostToMastodon-mode', 'public' );
		$toot_size = get_option( 'autopostToMastodon-toot-size', 500 );
		$content_warning = get_option( 'autopostToMastodon-content-warning', '');
		$autopost = get_option( 'autopostToMastodon-postOnStandard', 'on');

		include 'form.tpl.php';
	}

	/**
	 * Toot_post
	 * Post the toot
	 *
	 * @param int $id The post ID.
	 * @return void
	 */
	public function toot_post( $id ) {

		$post = get_post( $id );

		$thumb_url = get_the_post_thumbnail_url($id, 'medium_large'); //Don't change the resolution !

		$toot_size = (int) get_option( 'autopostToMastodon-toot-size', 500 );

		$toot_on_mastodon_option = false;
		$cw_content = (string) get_option( 'autopostToMastodon-content-warning', '' );

		$toot_on_mastodon_option = isset( $_POST['toot_on_mastodon'] );

		if ($toot_on_mastodon_option){
			update_post_meta( $id, 'autopostToMastodon-post-status', 'on' );
		}else{
			if (get_post_meta($id, 'autopostToMastodon-post-status',true) == 'on'){
				update_post_meta( $id, 'autopostToMastodon-post-status', 'off' );
			}
		}

		if ( $toot_on_mastodon_option ) {
			$message = $this->getTootFromTemplate($id);

			if ( ! empty( $message ) ) {

                //Save the toot, for scheduling
				if($post->post_status == 'future') {
					update_post_meta($id, 'autopostToMastodon-toot', $message);

					if ( $thumb_url ) {

						$thumb_path = str_replace( get_site_url(), get_home_path(), $thumb_url );
						update_post_meta($id, 'autopostToMastodon-toot-thumbnail', $thumb_path);
					}

					update_option(
						'autopostToMastodon-notice',
						serialize(
							array(
								'message' => '<strong>Mastodon Autopost</strong> : ' . __( 'Toot saved for schedule !', 'autopost-to-mastodon' ),
								'class' => 'info'
							)
						)
					);
				} else if($post->post_status == 'publish') {

					$instance = get_option( 'autopostToMastodon-instance' );
					$access_token = get_option('autopostToMastodon-token');
					$mode = get_option( 'autopostToMastodon-mode', 'public' );

					$client = new Client($instance, $access_token);

					if ( $thumb_url ) {


						$thumb_path = str_replace( get_site_url(), get_home_path(), $thumb_url );
						$attachment = $client->create_attachment( $thumb_path );

						if(is_object($attachment))
						{
							$media = $attachment->id;
						}
					}

					$toot = $client->postStatus($message, $mode, $media, $cw_content);

					update_post_meta( $id, 'autopostToMastodon-post-status', 'off' );

					add_action('admin_notices', 'autopostToMastodon_notice_toot_success');
					if ( isset( $toot->error ) ) {
						update_option(
							'autopostToMastodon-notice',
							serialize(
								array(
									'message' => '<strong>Mastodon Autopost</strong> : ' . __( 'Sorry, can\'t send toot !', 'autopost-to-mastodon' ) .
									'<p><strong>' . __( 'Instance message', 'autopost-to-mastodon' ) . '</strong> : ' . $toot->error . '</p>',
									'class' => 'error',
								)
							)
						);
					} else {
						update_option(
							'autopostToMastodon-notice',
							serialize(
								array(
									'message' => '<strong>Mastodon Autopost</strong> : ' . __( 'Toot successfully sent !', 'autopost-to-mastodon' ). ' <a href="'.$toot->url.'" target="_blank">'. __('View Toot', 'autopost-to-mastodon') .'</a>',
									'class' => 'success',
								)
							)
						);
						//Save the toot url for syndication
						update_post_meta($id, 'autopostToMastodonshare-lastSuccessfullTootURL',$toot->url);
					}
				}

			}
		}
	}

	/**
	 * Toot_scheduled_post
	 * @param  integer $post_id
	 */
	public function toot_scheduled_post($post_id) {

		$instance = get_option( 'autopostToMastodon-instance' );
		$access_token = get_option('autopostToMastodon-token');
		$mode = get_option( 'autopostToMastodon-mode', 'public' );

		$message = get_post_meta($post_id, 'autopostToMastodon-toot', true);

		$thumb_url = get_the_post_thumbnail_url($post_id);
		$thumb_path = get_post_meta($post_id, 'autopostToMastodon-toot-thumbnail', true);

		$client = new Client($instance, $access_token);

		if ( $thumb_url ) {

			$attachment = $client->create_attachment( $thumb_path );

			if(is_object($attachment))
			{
				$media = $attachment->id;
			}
		}

		$toot = $client->postStatus($message, $mode, $media);
	}

	/**
	 * Admin_notices
	 * Show the notice (error or info)
	 *
	 * @return void
	 */
	public function admin_notices() {

		$notice = unserialize( get_option( 'autopostToMastodon-notice' ) );

		if ( is_array( $notice ) ) {
			echo '<div class="notice notice-' . sanitize_html_class( $notice['class'] ) . ' is-dismissible"><p>' . $notice['message'] . '</p></div>';
			update_option( 'autopostToMastodon-notice', null );
		}
	}

	/**
	 * Add_metabox
	 *
	 * @return void
	 */
	public function add_metabox() {
		add_meta_box(
			'autopostToMastodon_metabox',
			'Mastodon Autopost',
			array($this, 'metabox'),
			['post', 'page'],
			'side',
			'high'
		);
	}

	/**
	 * Metabox
	 *
	 * @param WP_Post $post the current post.
	 * @return void
	 */
	public function metabox( $post ) {
		if ( $post->post_title == '' && $post->post_content == ''){
			$status = ('on' == (string) get_option('autopostToMastodon-postOnStandard', true));
		}else{
			$status = ('on' == (string) get_post_meta( $post->ID, 'autopostToMastodon-post-status', 'off' ));	
		}

		$checked = ( $status ) ? 'checked' : '';

		echo '<div style="margin: 20px 0;"><input ' . $checked . ' type="checkbox" name="toot_on_mastodon" id="toot_on_mastodon" value="on">' .
		'<label for="toot_on_mastodon">' . __( 'Toot on Mastodon', 'autopost-to-mastodon' ) . '</label></div>';

	}




	public function get_toot_preview_ajax_handler() {
		check_ajax_referer( 'mastodonNonce' );

		$return = array(
			'message'  => $this->getTootFromTemplate($_POST['post_ID'])
		);

		wp_send_json( $return);
	}

	private function getTootFromTemplate($id){

		$post = get_post( $id );
		$toot_size = (int) get_option( 'autopostToMastodon-toot-size', 500 );


		$message_template = get_option( 'autopostToMastodon-message', "[title]\n[excerpt]\n[permalink]\n[tags]" );

				//Replace title
		$post_title = get_the_title( $id );
		$message_template = str_replace("[title]", $post_title, $message_template);

				//Replace permalink
		$post_permalink = get_the_permalink( $id );
		$message_template = str_replace("[permalink]", $post_permalink, $message_template);

				//Replace tags  
		$post_tags = get_the_tags($post->ID);
		$post_tags_content = '';
		if ( $post_tags ) {
			foreach( $post_tags as $tag ) {
				$post_tags_content =  $post_tags_content . '#'.  preg_replace('/\s+/', '',$tag->name). ' '  ; 
			}
			$post_tags_content = trim($post_tags_content);
		}
		$message_template = str_replace("[tags]", $post_tags_content, $message_template);

				//Replace excerpt
		$post_content_long = wp_trim_words($post->post_content);
		$excerpt_len = $toot_size - strlen($message_template) + 9 - 5;

		$post_excerpt = substr($post_content_long,0,$excerpt_len) ."[...]";

		$message_template = str_replace("[excerpt]", $post_excerpt, $message_template);


		return substr($message_template,0,$toot_size);
	}

	private function sendTestToot(){
		$instance = get_option( 'autopostToMastodon-instance' );
		$access_token = get_option('autopostToMastodon-token');
		$mode = 'public';

		$client = new Client($instance, $access_token);
		//TODO: Add propper message
		$message=__("This is my first post with Mastodon Autopost for Wordpress",'autopost-to-mastodon'). " - https://wordpress.org/plugins/autopost-to-mastodon/";
		$media=null;
		$toot = $client->postStatus($message, $mode, $media);

		if ( isset( $toot->error ) ) {
			update_option(
				'autopostToMastodon-notice',
				serialize(
					array(
						'message' => '<strong>Mastodon Autopost</strong> : ' . __( 'Sorry, can\'t send toot !', 'autopost-to-mastodon' ) .
						'<p><strong>' . __( 'Instance message', 'autopost-to-mastodon' ) . '</strong> : ' . $toot->error . '</p>',
						'class' => 'error',
					)
				)
			);
		} else {
			update_option(
				'autopostToMastodon-notice',
				serialize(
					array(
						'message' => '<strong>Mastodon Autopost</strong> : ' . __( 'Toot successfully sent !', 'autopost-to-mastodon' ). ' <a href="'.$toot->url.'" target="_blank">'. __('View Toot', 'autopost-to-mastodon') .'</a>',
						'class' => 'success',
					)
				)
			);
		}
		$this->admin_notices();
	}
}

$autopostToMastodon = new autopostToMastodon();