Issue #1244238: Check that cron has been run recently - in the last 72 hours

src/Checks/LastCronRun.php

+<?php
+
+namespace Drupal\security_review\Checks;
+
+use Drupal\Core\Link;
+use Drupal\security_review\Check;
+use Drupal\security_review\CheckResult;
+use Drupal\user\Entity\Role;
+use Drupal\user\Entity\User;
+
+/**
+ * Checks the last time cron has ran.
+ */
+class LastCronRun extends Check {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getNamespace() {
+    return 'Security Review';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getTitle() {
+    return 'Last cron run';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getMachineTitle() {
+    return 'last_cron_run';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function run() {
+    $result = CheckResult::SUCCESS;
+    $last_run = TRUE;
+    $cron_last = \Drupal::state()->get('system.cron_last');
+    if ($cron_last <= strtotime('-3 day')) {
+      $result = CheckResult::FAIL;
+      $last_run = FALSE;
+    }
+
+    return $this->createResult($result, ['last_run' => $last_run]);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function help() {
+    $paragraphs = [];
+    $paragraphs[] = $this->t('A properly configured cron job executes, initiates, or manages a variety of tasks.');
+    return [
+      '#theme' => 'check_help',
+      '#title' => $this->t('Cron has ran in last 3 days.'),
+      '#paragraphs' => $paragraphs,
+    ];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function evaluatePlain(CheckResult $result) {
+    if ($result->result() != CheckResult::FAIL) {
+      return '';
+    }
+
+    return $this->t('Last cron run');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getMessage($result_const) {
+    switch ($result_const) {
+      case CheckResult::SUCCESS:
+        return $this->t('Cron has ran within the last 3 days.');
+
+      case CheckResult::FAIL:
+        return $this->t('Cron has not ran within the last 3 days.');
+
+      default:
+        return $this->t('Unexpected result.');
+    }
+  }
+
+}