📦 NEW: Updater class

Author: austinginder

app/Updater.php

@@ -0,0 +1,144 @@
+<?php
+
+namespace WPFreighter;
+
+class Updater {
+
+    public $plugin_slug;
+    public $version;
+    public $cache_key;
+    public $cache_allowed;
+
+    public function __construct() {
+
+        if ( defined( 'WP_FREIGHTER_DEV_MODE' ) ) {
+            add_filter('https_ssl_verify', '__return_false');
+            add_filter('https_local_ssl_verify', '__return_false');
+            add_filter('http_request_host_is_external', '__return_true');
+        }
+
+        $this->plugin_slug   = dirname ( plugin_basename( __DIR__ ) );
+        $this->version       = '1.1';
+        $this->cache_key     = 'wpfreighter_updater';
+        $this->cache_allowed = false;
+
+        add_filter( 'plugins_api', [ $this, 'info' ], 20, 3 );
+        add_filter( 'site_transient_update_plugins', [ $this, 'update' ] );
+        add_action( 'upgrader_process_complete', [ $this, 'purge' ], 10, 2 );
+
+    }
+
+    public function request(){
+
+        $remote = get_transient( $this->cache_key );
+
+        if( false === $remote || ! $this->cache_allowed ) {
+
+            $remote = wp_remote_get( 'https://wpfreighter.com/plugin-wpfreighter.json', [
+                    'timeout' => 10,
+                    'headers' => [
+                        'Accept' => 'application/json'
+                    ]
+                ]
+            );
+
+            if ( is_wp_error( $remote ) || 200 !== wp_remote_retrieve_response_code( $remote ) || empty( wp_remote_retrieve_body( $remote ) ) ) {
+                return false;
+            }
+
+            set_transient( $this->cache_key, $remote, DAY_IN_SECONDS );
+
+        }
+
+        $remote = json_decode( wp_remote_retrieve_body( $remote ) );
+        
+        return $remote;
+
+    }
+
+    function info( $response, $action, $args ) {
+
+        // do nothing if you're not getting plugin information right now
+        if ( 'plugin_information' !== $action ) {
+            return $response;
+        }
+
+        // do nothing if it is not our plugin
+        if ( empty( $args->slug ) || $this->plugin_slug !== $args->slug ) {
+            return $response;
+        }
+
+        // get updates
+        $remote = $this->request();
+
+        if ( ! $remote ) {
+            return $response;
+        }
+
+        $response = new \stdClass();
+
+        $response->name           = $remote->name;
+        $response->slug           = $remote->slug;
+        $response->version        = $remote->version;
+        $response->tested         = $remote->tested;
+        $response->requires       = $remote->requires;
+        $response->author         = $remote->author;
+        $response->author_profile = $remote->author_profile;
+        $response->donate_link    = $remote->donate_link;
+        $response->homepage       = $remote->homepage;
+        $response->download_link  = $remote->download_url;
+        $response->trunk          = $remote->download_url;
+        $response->requires_php   = $remote->requires_php;
+        $response->last_updated   = $remote->last_updated;
+
+        $response->sections = [
+            'description'  => $remote->sections->description,
+            'installation' => $remote->sections->installation,
+            'changelog'    => $remote->sections->changelog
+        ];
+
+        if ( ! empty( $remote->banners ) ) {
+            $response->banners = [
+                'low'  => $remote->banners->low,
+                'high' => $remote->banners->high
+            ];
+        }
+
+        return $response;
+
+    }
+
+    public function update( $transient ) {
+
+        if ( empty($transient->checked ) ) {
+            return $transient;
+        }
+
+        $remote = $this->request();
+
+        if ( $remote && version_compare( $this->version, $remote->version, '<' ) && version_compare( $remote->requires, get_bloginfo( 'version' ), '<=' ) && version_compare( $remote->requires_php, PHP_VERSION, '<' ) ) {
+            $response              = new \stdClass();
+            $response->slug        = $this->plugin_slug;
+            $response->plugin      = "{$this->plugin_slug}/{$this->plugin_slug}.php";
+            $response->new_version = $remote->version;
+            $response->tested      = $remote->tested;
+            $response->package     = $remote->download_url;
+
+            $transient->response[ $response->plugin ] = $response;
+
+        }
+
+        return $transient;
+
+    }
+
+    public function purge( $upgrader, $options ) {
+
+        if ( $this->cache_allowed && 'update' === $options['action'] && 'plugin' === $options[ 'type' ] ) {
+            // just clean the cache when new plugin version is installed
+            delete_transient( $this->cache_key );
+        }
+
+    }
+
+}