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wp-content/plugins/mailpoet/lib/Config/RequirementsChecker.php

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+<?php // phpcs:ignore SlevomatCodingStandard.TypeHints.DeclareStrictTypes.DeclareStrictTypesMissing
+
+namespace MailPoet\Config;
+
+if (!defined('ABSPATH')) exit;
+
+
+use MailPoet\Util\Helpers;
+use MailPoet\WP\Notice as WPNotice;
+
+class RequirementsChecker {
+  const TEST_FOLDER_PERMISSIONS = 'TempFolderCreation';
+  const TEST_XML_EXTENSION = 'XmlExtension';
+  const TEST_VENDOR_SOURCE = 'VendorSource';
+
+  public $displayErrorNotice;
+  public $vendorClasses = [
+    '\Cron\CronExpression',
+  ];
+
+  public function __construct(
+    $displayErrorNotice = true
+  ) {
+    $this->displayErrorNotice = $displayErrorNotice;
+  }
+
+  public function checkAllRequirements() {
+    $availableTests = [
+      self::TEST_FOLDER_PERMISSIONS,
+      self::TEST_XML_EXTENSION,
+      self::TEST_VENDOR_SOURCE,
+    ];
+    $results = [];
+    foreach ($availableTests as $test) {
+      $callback = [$this, 'check' . $test];
+      if (is_callable($callback)) {
+        $results[$test] = call_user_func($callback);
+      }
+    }
+    return $results;
+  }
+
+  public function checkTempFolderCreation() {
+    $paths = [
+      'temp_path' => Env::$tempPath,
+    ];
+    if (!is_dir($paths['temp_path']) && !wp_mkdir_p($paths['temp_path'])) {
+      $error = Helpers::replaceLinkTags(
+        __('MailPoet requires write permissions inside the /wp-content/uploads folder. Please read our [link]instructions[/link] on how to resolve this issue.', 'mailpoet'),
+        'https://kb.mailpoet.com/article/152-minimum-requirements-for-mailpoet-3#folder_permissions',
+        ['target' => '_blank']
+      );
+      return $this->processError($error);
+    }
+    foreach ($paths as $path) {
+      $indexFile = $path . '/index.php';
+      if (!file_exists($indexFile)) {
+        file_put_contents(
+          $path . '/index.php',
+          str_replace('\n', PHP_EOL, '<?php\n\n// Silence is golden')
+        );
+      }
+    }
+    return true;
+  }
+
+  public function checkXmlExtension() {
+    if (extension_loaded('xml')) return true;
+    $error = Helpers::replaceLinkTags(
+      __('MailPoet requires an XML PHP extension. Please read our [link]instructions[/link] on how to resolve this issue.', 'mailpoet'),
+      'https://kb.mailpoet.com/article/152-minimum-requirements-for-mailpoet-3#php_extension',
+      ['target' => '_blank']
+    );
+    return $this->processError($error);
+  }
+
+  public function checkVendorSource() {
+    foreach ($this->vendorClasses as $dependency) {
+      $dependencyPath = $this->getDependencyPath($dependency);
+      if (!$dependencyPath) {
+        $error = sprintf(
+        // translators: %s is the dependency.
+          __('A MailPoet dependency (%s) does not appear to be loaded correctly, thus MailPoet will not work correctly. Please reinstall the plugin.', 'mailpoet'),
+          $dependency
+        );
+
+        return $this->processError($error);
+      }
+
+      $pattern = '#' . preg_quote(Env::$path) . '[\\\/]#';
+      $isLoadedByPlugin = preg_match($pattern, $dependencyPath);
+      if (!$isLoadedByPlugin) {
+        $error = sprintf(
+          // translators: %1$s is the dependency and %2$s the plugin.
+          __('MailPoet has detected a dependency conflict (%1$s) with another plugin (%2$s), which may cause unexpected behavior. Please disable the offending plugin to fix this issue.', 'mailpoet'),
+          $dependency,
+          $dependencyPath
+        );
+
+        return $this->processError($error);
+      }
+    }
+
+    return true;
+  }
+
+  private function getDependencyPath($namespacedClass) {
+    try {
+      $reflector = new \ReflectionClass($namespacedClass);
+      return $reflector->getFileName();
+    } catch (\ReflectionException $ex) {
+      return false;
+    }
+  }
+
+  public function processError($error) {
+    if ($this->displayErrorNotice) {
+      WPNotice::displayError($error);
+    }
+    return false;
+  }
+}