Show user info about mandatory updates.

app/Console/Commands/VerifySecurityAlerts.php

@@ -0,0 +1,89 @@
+<?php
+
+namespace FireflyIII\Console\Commands;
+
+use Illuminate\Console\Command;
+use Storage;
+
+/**
+ * Class VerifySecurityAlerts
+ */
+class VerifySecurityAlerts extends Command
+{
+    /**
+     * The name and signature of the console command.
+     *
+     * @var string
+     */
+    protected $signature = 'firefly-iii:verify-security-alerts';
+
+    /**
+     * The console command description.
+     *
+     * @var string
+     */
+    protected $description = 'Verify security alerts';
+
+    /**
+     * Create a new command instance.
+     *
+     * @return void
+     */
+    public function __construct()
+    {
+        parent::__construct();
+    }
+
+    /**
+     * Execute the console command.
+     *
+     * @return int
+     */
+    public function handle(): int
+    {
+        // remove old advisory
+        app('fireflyconfig')->delete('upgrade_security_message');
+        app('fireflyconfig')->delete('upgrade_security_level');
+
+        // check for security advisories.
+        $version = config('firefly.version');
+        $disk    = Storage::disk('resources');
+        if (!$disk->has('alerts.json')) {
+            return 0;
+        }
+        $content = $disk->get('alerts.json');
+        $json    = json_decode($content, true, 10);
+
+        /** @var array $array */
+        foreach ($json as $array) {
+            // overrule array:
+            if ($version === $array['version'] && true === $array['advisory']) {
+                // add advisory to configuration.
+                app('fireflyconfig')->set('upgrade_security_message', $array['message']);
+                app('fireflyconfig')->set('upgrade_security_level', $array['level']);
+
+                // depends on level
+                if ('info' === $array['level']) {
+                    $this->info($array['message']);
+                    return 0;
+                }
+                if ('warning' === $array['level']) {
+                    $this->warn('------------------------ :o');
+                    $this->warn($array['message']);
+                    $this->warn('------------------------ :o');
+                    return 0;
+                }
+                if ('danger' === $array['level']) {
+                    $this->error('------------------------ :-(');
+                    $this->error($array['message']);
+                    $this->error('------------------------ :-(');
+                    return 0;
+                }
+
+                return 0;
+            }
+        }
+
+        return 0;
+    }
+}