Separated laravel app to its own folder (#540)

api/app/Rules/ValidUrl.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace App\Rules;
+
+use Closure;
+use Illuminate\Contracts\Validation\ValidationRule;
+
+class ValidUrl implements ValidationRule
+{
+    /**
+     * Determine if the validation rule passes.
+     *
+     * @param  string  $attribute
+     * @param  mixed  $value
+     * @return bool
+     */
+    public function passes($attribute, $value)
+    {
+        // Define the regular expression to match the desired URL patterns
+        $pattern = '/^(https?:\/\/)?(www\.)?[\w.-]+\.\w+(:\d+)?(\/[^\s]*)?$/';
+
+        return preg_match($pattern, $value);
+    }
+
+    public function validate(string $attribute, mixed $value, Closure $fail): void
+    {
+        if (!$this->passes($attribute, $value)) {
+            $fail($this->message());
+        }
+    }
+
+    /**
+     * Get the validation error message.
+     *
+     * @return string
+     */
+    public function message()
+    {
+        return 'The :attribute format is invalid.';
+    }
+}