update requirements check for php extensions

Author: pjv

README.md

@@ -17,6 +17,7 @@ Please test and report issues here.
 Some of the included libraries have relatively recent dependency requirements so you will need the following in your WordPress platform:
 * PHP 8.1+
 * php-gmp module must be installed ([Installation on Ubuntu](https://computingforgeeks.com/how-to-install-php-on-ubuntu-linux-system/))
+* php-bcmath module must be installed ([Installation on Ubuntu](https://www.itsolutionstuff.com/post/ubuntu-php-bcmath-extension-install-commands-exampleexample.html))
 * WordPress 6.0+
 * Writable uploads directory (on activation, the plugin writes a cryptographic keyfile to a storage directory)
 

classes/class-nostrtium-requirements-check.php

@@ -8,6 +8,7 @@ class Nostrtium_Requirements_Check {
   // args
   private $title = '';
   private $php = '8.1';
+  private $extensions = [];
   private $wp = '6.0';
   private $dir = '';
   private $file;
@@ -20,62 +21,95 @@ public function __construct($args) {
       }
     }
   }
+
   public function passes() {
-    $passes = $this->php_passes() && $this->wp_passes() && $this->dir_passes();
+    $passes = $this->php_passes() && $this->extensions_passes() && $this->wp_passes() && $this->dir_passes();
     if (!$passes) {
       add_action('admin_notices', [$this, 'deactivate']);
     }
 
     return $passes;
   }
+
   public function deactivate() {
     if (isset($this->file)) {
       deactivate_plugins(plugin_basename($this->file));
     }
   }
+
   private function php_passes() {
     if ($this->__php_at_least($this->php)) {
       return true;
     } else {
       add_action('admin_notices', [$this, 'php_version_notice']);
-
       return false;
     }
   }
+
   private static function __php_at_least($min_version) {
     return version_compare(phpversion(), $min_version, '>=');
   }
+
   public function php_version_notice() {
     echo '<div class="error">';
     echo '<p>The &#8220;' . esc_html($this->title) . '&#8221; plugin cannot run on PHP versions older than ' . $this->php . '. Please contact your host and ask them to upgrade.</p>';
     echo '</div>';
   }
+
+  private function extensions_passes() {
+    $loaded_extensions = get_loaded_extensions();
+    $passes = true;
+    $missing = "";
+
+    foreach ($this->extensions as $extension) {
+      if (!in_array($extension, $loaded_extensions)) {
+        $passes = false;
+        $missing .= $extension . ", ";
+      }
+    }
+
+    if ($passes) {
+      return true;
+    } else {
+      add_action('admin_notices', [$this, 'extensions_notice', $missing]);
+      return false;
+    }
+  }
+
+  public function extensions_notice($missing) {
+    echo '<div class="error">';
+    echo '<p>The &#8220;' . esc_html($this->title) . '&#8221; plugin cannot run without these missing php extensions: ' . $missing . '.</p>';
+    echo '</div>';
+  }
+
   private function wp_passes() {
     if ($this->__wp_at_least($this->wp)) {
       return true;
     } else {
       add_action('admin_notices', [$this, 'wp_version_notice']);
-
       return false;
     }
   }
+
   private static function __wp_at_least($min_version) {
     return version_compare(get_bloginfo('version'), $min_version, '>=');
   }
+
   public function wp_version_notice() {
     echo '<div class="error">';
     echo '<p>The &#8220;' . esc_html($this->title) . '&#8221; plugin cannot run on WordPress versions older than ' . $this->wp . '. Please update WordPress.</p>';
     echo '</div>';
   }
-    private function dir_passes() {
-      if (is_writable($this->dir)) {
-        return true;
-      } else {
-        add_action('admin_notices', [$this, 'dir_writeable_notice']);
 
-        return false;
-      }
+  private function dir_passes() {
+    if (is_writable($this->dir)) {
+      return true;
+    } else {
+      add_action('admin_notices', [$this, 'dir_writeable_notice']);
+      return false;
     }
+  }
+  
   public function dir_writeable_notice() {
     echo '<div class="error">';
     echo '<p>The &#8220;' . esc_html($this->title) . '&#8221; plugin cannot run without the wp-content/uploads directory being writeable.</p>';

nostrtium.php

@@ -8,7 +8,7 @@
  * Author URI:       https://github.com/pjv
  * Text Domain:      nostrtium
  * Domain Path:      /languages
- * Version:          0.7.1
+ * Version:          0.7.2
  * Requires at least 6.0
  * Requires PHP      8.1
  * License           Unlicense
@@ -21,18 +21,18 @@
   exit;
 }
 
-define('PJV_NOSTRTIUM_VERSION', '0.7.1');
+define('PJV_NOSTRTIUM_VERSION', '0.7.2');
 define('PJV_NOSTRTIUM_DIR', plugin_dir_path(__FILE__));
 define('PJV_NOSTRTIUM_DEFAULT_USER_ROLE', 'edit_posts');
 define('PJV_NOSTRTIUM_STORAGE', wp_upload_dir()['basedir'] . '/nostrtium_' . md5(LOGGED_IN_SALT) . '/');
 
 require_once PJV_NOSTRTIUM_DIR . 'classes/class-nostrtium-requirements-check.php';
-$pjv_nostrtium_requirements_check = new Nostrtium_Requirements_Check([
-  'title' => 'Nostrtium',
-  'php'   => '8.1',
-  'wp'    => '6.0',
-  'dir'   => wp_upload_dir()['basedir'],
-  'file'  => __FILE__,
+$pjv_nostrtium_requirements_check = new Nostrtium_Requirements_Check(['title'   => 'Nostrtium',
+  'php'        => '8.1',
+  'extensions' => ['gmp', 'bcmath'],
+  'wp'         => '6.0',
+  'dir'        => wp_upload_dir()['basedir'],
+  'file'       => __FILE__,
 ]);
 if ($pjv_nostrtium_requirements_check->passes()) {
   require_once PJV_NOSTRTIUM_DIR . 'vendor/autoload.php';

readme.txt

@@ -5,7 +5,7 @@ Tags: social media, nostr
 Requires at least: 6.0
 Requires PHP: 8.1
 Tested up to: 6.2.2
-Stable tag: 0.7.0
+Stable tag: 0.7.2
 License: Unlicense
 License URI: https://unlicense.org
 
@@ -30,6 +30,7 @@ Development is taking place on [github](https://github.com/pjv/nostrtium) and th
 Some of the included libraries have relatively recent dependency requirements so you will need the following in your WordPress platform:
 * PHP 8.1+
 * php-gmp module must be installed ([Installation on Ubuntu](https://computingforgeeks.com/how-to-install-php-on-ubuntu-linux-system/))
+* php-bcmath module must be installed ([Installation on Ubuntu](https://www.itsolutionstuff.com/post/ubuntu-php-bcmath-extension-install-commands-exampleexample.html))
 * WordPress 6.0+
 * Writable uploads directory (on activation, the plugin writes a cryptographic keyfile to a storage directory)
 
@@ -65,6 +66,10 @@ The manual installation method involves downloading the plugin and then uploadin
 
 == Changelog ==
 
+= 0.7.2 =
+* Update requirements text and requirements check
+* Fix missing variable declaration
+
 = 0.7.1 =
 * Auto-post only on first publication - not updates of old posts.
 * Auto post only of type 'post' (currently not pages or custom post types).