<?php
/*
* Plugin Name: Versions Checker
* Description: Vérifie les versions des plugins et de wordpress
* Version: 1.4
* Author:  Thibault Richy
* Author URI:
*/

include("logger.class.php");

// ---- create a scheduled event
// function cronstarter_activation() {
// 	if( !wp_next_scheduled( 'check_version_cronjob' ) ) {
// 	   wp_schedule_event( time(), 'hourly', 'check_version_cronjob' );
// 	}
// }
// add_action('wp', 'cronstarter_activation');

add_filter( 'cron_schedules', function ( $schedules ) {
    $schedules['every-15-minutes'] = array(
        'interval' => 15 * MINUTE_IN_SECONDS,
        'display'  => __( 'Every 15 minutes' )
    );
    return $schedules;
} );


function cronstarter_activate() {
    if (! wp_next_scheduled ( 'check_version_cronjob' )) {
	wp_schedule_event(time(), 'every-15-minutes', 'check_version_cronjob');
    }
}
register_activation_hook(__FILE__, 'cronstarter_activate');


// ---- unschedule event upon plugin deactivation
function cronstarter_deactivate() {
	$timestamp = wp_next_scheduled ('check_version_cronjob');
	wp_unschedule_event ($timestamp, 'check_version_cronjob');
}
register_deactivation_hook (__FILE__, 'cronstarter_deactivate');


function checkingVersion(){
		$logFile = ABSPATH ."log.txt";
		//Check if we have the necessary functions
		if ( ! function_exists( 'get_plugins' ) ) {
			require_once ABSPATH . 'wp-admin/includes/plugin.php';
		}
		if ( ! function_exists( 'plugins_api' ) ) {
		      require_once( ABSPATH . 'wp-admin/includes/plugin-install.php' );
		}
		if ( ! function_exists( 'get_plugin_updates' ) ) {
		      require_once( ABSPATH . 'wp-admin/includes/update.php' );
		}
		if ( ! function_exists( 'get_home_path' ) ) {
		      require_once( ABSPATH . 'wp-admin/includes/file.php' );
		}
		$data = [];

		// get all plugins
		$allPlugin = get_plugins();
		//get all updatable plugins
		$plugin_to_update = get_plugin_updates();

		//date update
		$date = new DateTime();
		$date = $date->setTimezone(new DateTimeZone('Europe/Paris'));
		$date = $date->format('d/m/Y H:i:s');
		$data['updateDate'] = $date;

		//get active plugins
		$active_plugins = wp_get_active_and_valid_plugins();
		foreach ($active_plugins as $key => $path) {
			$plugin_data = get_plugin_data($path);
			$data['plugins'][$plugin_data['Name']]['Version'] = $plugin_data['Version'];
			// check if one of the active plugins is updatable
			if (array_key_exists (plugin_basename( $path ), $plugin_to_update)) {
				$data['plugins'][$plugin_data['Name']]['Maj'] = $plugin_to_update[plugin_basename( $path )]->update->new_version;
			} else {
				$data['plugins'][$plugin_data['Name']]['Maj'] = false;
			}
		}

		//get non active plugins
		foreach ($allPlugin as $key => $value) {
			if (is_plugin_inactive($key)) {
				$data['inactiveplugins'][$value['Name']] = true;
			}
		}
		//get installed wordpress version
		$currentversion = get_bloginfo('version');
		$data['Wordpress']['Version'] = $currentversion;

		//call wordpress api to check if our version is updatable
		$url = 'https://api.wordpress.org/core/version-check/1.7/';
		$response = wp_remote_get($url);
		$json = $response['body'];
		$obj = json_decode($json);


		if (($obj->offers[0]->current) > $currentversion) {
			$data['Wordpress']['Maj'] = $obj->offers[0]->current;
		} else {
			$data['Wordpress']['Maj'] = false;
		}
		if (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') {
			$data['HTTPS'] = true;
		} else {
			$data['HTTPS'] = false;
		}

		//get mu plugins / check security plugin
		$muPlugins = get_mu_plugins();
		if (isset($muPlugins['admin-useraccount-security.php'])) {
			$data['SecurityPlugin'] = $muPlugins['admin-useraccount-security.php']['Version'];
		} else {
			$data['SecurityPlugin'] = false;
		}
		//check if .git folder is present
		$pathgit = ABSPATH .'.git';
		if (is_dir($pathgit)) {
			$data['Git'] = true;
		} else {
			$data['Git'] = false;
		}

		//check how many untracked/modified files
		if(file_exists(WP_PLUGIN_DIR . '/revisr')) {
			require WP_PLUGIN_DIR . '/revisr/classes/class-revisr-git.php';
			$revisr = new Revisr_Git();
			$countUntracked = $revisr->count_untracked();
			$data['Revisr'] = $countUntracked;
		}
		
		//Check logs
		$patherror = realpath(ABSPATH .'/..');

		$files = glob($patherror.'/*.log');
		if(count($files) == 0){
			$data['Logs']['Exists'] = false;
		} else {
			$data['Logs']['Exists'] = true;
			foreach ($files as $filename){
				$data['Logs'][$filename] = filesize($filename);
			}
		}


		//path to all the files and creates if necessary
		$pathfolder = ABSPATH .'version-checker';
		$filepath = ABSPATH .'version-checker/versions.json';
		$htaccesspath = ABSPATH .'version-checker/.htaccess';
		$htpasswdpath = ABSPATH .'version-checker/.htpasswd';
		if (!file_exists($pathfolder)) {
			mkdir($pathfolder, 0777, true);
		}
		if (!file_exists($htaccesspath)) {
			$htaccess = 'AuthName "Protected Version Checker"
			AuthType Basic
			AuthUserFile '.$htpasswdpath.'
			Require valid-user';
			file_put_contents($htaccesspath, $htaccess);
			$htpasswd = 'ldc-web:$1$LvylAO22$R72WuB1w8OpNdcISgXBZU.';
			file_put_contents($htpasswdpath, $htpasswd);
		}
		file_put_contents($filepath, json_encode($data));

		if (! wp_next_scheduled ( 'check_version_cronjob' )) {
			wp_schedule_event(time(), 'every-15-minutes', 'check_version_cronjob');
		}
}

add_action ('check_version_cronjob', 'checkingVersion');

 ?>