From 3d25c67afdf8bf7836bd11147e9f973e6c9d519d Mon Sep 17 00:00:00 2001
From: Dima Teplukhin <dimonvelsk@gmail.com>
Date: Sun, 3 Sep 2023 08:38:15 +0300
Subject: [PATCH] feat(app): add helper email check

---
 website/composer.json         |   8 +-
 website/composer.lock         | 153 +++++++++++++++++++++++++++++++++-
 website/index.php             |  15 ++++
 website/src/Helpers/Email.php |  35 ++++++++
 4 files changed, 209 insertions(+), 2 deletions(-)
 create mode 100644 website/src/Helpers/Email.php

diff --git a/website/composer.json b/website/composer.json
index 8205c8a3f..ee87fa0fe 100644
--- a/website/composer.json
+++ b/website/composer.json
@@ -8,6 +8,11 @@
     "vlucas/phpdotenv": "^5.5",
     "php-amqplib/php-amqplib": "^2.0"
   },
+  "autoload": {
+    "psr-4": {
+      "App\\" : "src/"
+    }
+  },
   "license": "MIT",
   "authors": [
     {
@@ -16,7 +21,8 @@
   ],
   "minimum-stability": "stable",
   "require-dev": {
-    "squizlabs/php_codesniffer": "^3.7"
+    "squizlabs/php_codesniffer": "^3.7",
+    "symfony/var-dumper": "^6.3"
   },
   "scripts": {
     "phpcs": "phpcs --standard=PSR2"
diff --git a/website/composer.lock b/website/composer.lock
index ddc8dfe8d..8378c5a2e 100644
--- a/website/composer.lock
+++ b/website/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "e7ea40406d4197f95f66def04ab12791",
+    "content-hash": "952d8ee90fcef8cd5a9b3fee15932d6c",
     "packages": [
         {
             "name": "graham-campbell/result-type",
@@ -607,6 +607,157 @@
                 "wiki": "https://github.com/squizlabs/PHP_CodeSniffer/wiki"
             },
             "time": "2023-02-22T23:07:41+00:00"
+        },
+        {
+            "name": "symfony/deprecation-contracts",
+            "version": "v3.3.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/deprecation-contracts.git",
+                "reference": "7c3aff79d10325257a001fcf92d991f24fc967cf"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/deprecation-contracts/zipball/7c3aff79d10325257a001fcf92d991f24fc967cf",
+                "reference": "7c3aff79d10325257a001fcf92d991f24fc967cf",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=8.1"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "3.4-dev"
+                },
+                "thanks": {
+                    "name": "symfony/contracts",
+                    "url": "https://github.com/symfony/contracts"
+                }
+            },
+            "autoload": {
+                "files": [
+                    "function.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "A generic function and convention to trigger deprecation notices",
+            "homepage": "https://symfony.com",
+            "support": {
+                "source": "https://github.com/symfony/deprecation-contracts/tree/v3.3.0"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2023-05-23T14:45:45+00:00"
+        },
+        {
+            "name": "symfony/var-dumper",
+            "version": "v6.3.4",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/var-dumper.git",
+                "reference": "2027be14f8ae8eae999ceadebcda5b4909b81d45"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/var-dumper/zipball/2027be14f8ae8eae999ceadebcda5b4909b81d45",
+                "reference": "2027be14f8ae8eae999ceadebcda5b4909b81d45",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=8.1",
+                "symfony/deprecation-contracts": "^2.5|^3",
+                "symfony/polyfill-mbstring": "~1.0"
+            },
+            "conflict": {
+                "symfony/console": "<5.4"
+            },
+            "require-dev": {
+                "ext-iconv": "*",
+                "symfony/console": "^5.4|^6.0",
+                "symfony/http-kernel": "^5.4|^6.0",
+                "symfony/process": "^5.4|^6.0",
+                "symfony/uid": "^5.4|^6.0",
+                "twig/twig": "^2.13|^3.0.4"
+            },
+            "bin": [
+                "Resources/bin/var-dump-server"
+            ],
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "Resources/functions/dump.php"
+                ],
+                "psr-4": {
+                    "Symfony\\Component\\VarDumper\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Provides mechanisms for walking through any arbitrary PHP variable",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "debug",
+                "dump"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/var-dumper/tree/v6.3.4"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2023-08-24T14:51:05+00:00"
         }
     ],
     "aliases": [],
diff --git a/website/index.php b/website/index.php
index 2b9f53941..60aad17af 100644
--- a/website/index.php
+++ b/website/index.php
@@ -2,4 +2,19 @@
 
 declare(strict_types=1);
 
+use App\Helpers\Email;
+
 require 'vendor/autoload.php';
+
+$emailRecords = [
+    'test@ya.ru',
+    'teststatic@ya.ru',
+    'werewr.ertr',
+    '12221@123.qwe'
+];
+
+try {
+    dump(Email::validateEmails($emailRecords));
+} catch (RuntimeException $e) {
+    dump($e);
+}
\ No newline at end of file
diff --git a/website/src/Helpers/Email.php b/website/src/Helpers/Email.php
new file mode 100644
index 000000000..acff20ff1
--- /dev/null
+++ b/website/src/Helpers/Email.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace App\Helpers;
+
+class Email
+{
+    protected static array $DNS = [];
+
+    public static function validateEmails(array $emails = []): array
+    {
+        $result = [];
+        foreach ($emails as $email) {
+            $result[] = filter_var($email, FILTER_VALIDATE_EMAIL) && static::checkDNS($email);
+        }
+
+        return array_combine($emails, $result);
+    }
+
+    public static function checkDNS(string $email): bool
+    {
+        $domain = substr(strrchr($email, '@'), 1);
+        if (isset(static::$DNS[$domain])) {
+            return static::$DNS[$domain];
+        }
+
+        try {
+            $resultEmail = getmxrr($domain, $mx_records) && count($mx_records) > 0;
+        } catch (\RuntimeException $e) {
+            $resultEmail = false;
+        }
+
+        static::$DNS[$domain] = $resultEmail;
+        return $resultEmail;
+    }
+}
\ No newline at end of file