Implement ApexDomain validator

src/Domains/Validator/ApexDomain.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace Utopia\Domains\Validator;
+
+use Utopia\Domains\Domain;
+
+/**
+ *
+ * Validate that a domain is a public apex domain
+ */
+class ApexDomain extends PublicDomain
+{
+    /**
+     * Returns error message when validation fails
+     */
+    public function getDescription(): string
+    {
+        return 'Value must be a public apex domain';
+    }
+
+    /**
+     * Validate that the domain is a public apex domain
+     *
+     * @param  mixed $value
+     * @return bool
+     */
+    public function isValid($value): bool
+    {
+        if (filter_var($value, FILTER_VALIDATE_URL)) {
+            $value = parse_url($value, PHP_URL_HOST);
+        }
+
+        if (!parent::isValid($value)) {
+            return false;
+        }
+
+        $domain = new Domain($value);
+        return $domain->getApex() === $value;
+    }
+}

tests/Validator/ApexDomainTest.php

@@ -0,0 +1,42 @@
+<?php
+
+namespace Utopia\Domains\Validator;
+
+use PHPUnit\Framework\TestCase;
+
+class ApexDomainTest extends TestCase
+{
+    protected ?ApexDomain $domain;
+
+    public function setUp(): void
+    {
+        $this->domain = new ApexDomain();
+    }
+
+    public function tearDown(): void
+    {
+        $this->domain = null;
+    }
+
+    public function testIsValid(): void
+    {
+        // Description
+        $this->assertEquals('Value must be a public apex domain', $this->domain->getDescription());
+
+        // Valid apex domains
+        $this->assertTrue($this->domain->isValid('example.com'));
+        $this->assertTrue($this->domain->isValid('google.com'));
+        $this->assertTrue($this->domain->isValid('bbc.co.uk'));
+        $this->assertTrue($this->domain->isValid('appwrite.io'));
+        $this->assertTrue($this->domain->isValid('usa.gov'));
+        $this->assertTrue($this->domain->isValid('stanford.edu'));
+        $this->assertTrue($this->domain->isValid('http://google.com'));
+
+        // Invalid apex domains
+        $this->assertFalse($this->domain->isValid('blog.bbc.co.uk'));
+        $this->assertFalse($this->domain->isValid('www.google.com'));
+        $this->assertFalse($this->domain->isValid('test.usa.gov'));
+        $this->assertFalse($this->domain->isValid('test.com.test'));
+        $this->assertFalse($this->domain->isValid('http://www.google.com'));
+    }
+}