Initial commit

app/Rules/StorageFile.php

@@ -0,0 +1,68 @@
+<?php
+
+namespace App\Rules;
+
+use App\Http\Controllers\Forms\PublicFormController;
+use App\Service\Storage\StorageFileNameParser;
+use Illuminate\Contracts\Validation\Rule;
+use Illuminate\Support\Facades\Storage;
+use Illuminate\Support\Str;
+
+class StorageFile implements Rule
+{
+    public int $maxSize;
+
+    public string $error = 'Invalid file.';
+
+    /** @var string[] */
+    public array $fileTypes;
+
+    /**
+     * @param  int  $maxSize
+     * @param  string[]  $fileTypes
+     */
+    public function __construct(int $maxSize, array $fileTypes = [])
+    {
+        $this->maxSize = $maxSize;
+
+        $this->fileTypes = $fileTypes;
+    }
+
+    /**
+     * File can have 2 formats:
+     * - file_name-{uuid}.{ext}
+     * - {uuid}
+     *
+     * @param  string  $attribute
+     * @param  mixed  $value
+     * @return bool
+     */
+    public function passes($attribute, $value): bool
+    {
+        $fileNameParser = StorageFileNameParser::parse($value);
+        if (!$uuid = $fileNameParser->uuid) {
+            return false;
+        }
+
+        $filePath = PublicFormController::TMP_FILE_UPLOAD_PATH.$uuid;
+        if (!Storage::exists($filePath)) {
+            return false;
+        }
+
+        if (Storage::size($filePath) > $this->maxSize) {
+            $this->error = 'File is too large.';
+            return false;
+        }
+
+        if (count($this->fileTypes) > 0) {
+            $this->error = 'Incorrect file type. Allowed only: '.implode(",", $this->fileTypes);
+            return in_array($fileNameParser->extension, $this->fileTypes);
+        }
+        return true;
+    }
+
+    public function message(): string
+    {
+        return $this->error;
+    }
+}