Initial Drupal 11 with DDEV setup

vendor/symfony/mailer/Transport/Smtp/Auth/AuthenticatorInterface.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Mailer\Transport\Smtp\Auth;
+
+use Symfony\Component\Mailer\Exception\TransportExceptionInterface;
+use Symfony\Component\Mailer\Transport\Smtp\EsmtpTransport;
+
+/**
+ * An Authentication mechanism.
+ *
+ * @author Chris Corbyn
+ */
+interface AuthenticatorInterface
+{
+    /**
+     * Tries to authenticate the user.
+     *
+     * @throws TransportExceptionInterface
+     */
+    public function authenticate(EsmtpTransport $client): void;
+
+    /**
+     * Gets the name of the AUTH mechanism this Authenticator handles.
+     */
+    public function getAuthKeyword(): string;
+}

vendor/symfony/mailer/Transport/Smtp/Auth/CramMd5Authenticator.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Mailer\Transport\Smtp\Auth;
+
+use Symfony\Component\Mailer\Exception\InvalidArgumentException;
+use Symfony\Component\Mailer\Transport\Smtp\EsmtpTransport;
+
+/**
+ * Handles CRAM-MD5 authentication.
+ *
+ * @author Chris Corbyn
+ */
+class CramMd5Authenticator implements AuthenticatorInterface
+{
+    public function getAuthKeyword(): string
+    {
+        return 'CRAM-MD5';
+    }
+
+    /**
+     * @see https://www.ietf.org/rfc/rfc4954.txt
+     */
+    public function authenticate(EsmtpTransport $client): void
+    {
+        $challenge = $client->executeCommand("AUTH CRAM-MD5\r\n", [334]);
+        $challenge = base64_decode(substr($challenge, 4));
+        $message = base64_encode($client->getUsername().' '.$this->getResponse($client->getPassword(), $challenge));
+        $client->executeCommand(\sprintf("%s\r\n", $message), [235]);
+    }
+
+    /**
+     * Generates a CRAM-MD5 response from a server challenge.
+     */
+    private function getResponse(#[\SensitiveParameter] string $secret, string $challenge): string
+    {
+        if (!$secret) {
+            throw new InvalidArgumentException('A non-empty secret is required.');
+        }
+
+        if (\strlen($secret) > 64) {
+            $secret = pack('H32', md5($secret));
+        }
+
+        if (\strlen($secret) < 64) {
+            $secret = str_pad($secret, 64, \chr(0));
+        }
+
+        $kipad = substr($secret, 0, 64) ^ str_repeat(\chr(0x36), 64);
+        $kopad = substr($secret, 0, 64) ^ str_repeat(\chr(0x5C), 64);
+
+        $inner = pack('H32', md5($kipad.$challenge));
+
+        return md5($kopad.$inner);
+    }
+}

vendor/symfony/mailer/Transport/Smtp/Auth/LoginAuthenticator.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Mailer\Transport\Smtp\Auth;
+
+use Symfony\Component\Mailer\Transport\Smtp\EsmtpTransport;
+
+/**
+ * Handles LOGIN authentication.
+ *
+ * @author Chris Corbyn
+ */
+class LoginAuthenticator implements AuthenticatorInterface
+{
+    public function getAuthKeyword(): string
+    {
+        return 'LOGIN';
+    }
+
+    /**
+     * @see https://www.ietf.org/rfc/rfc4954.txt
+     */
+    public function authenticate(EsmtpTransport $client): void
+    {
+        $client->executeCommand("AUTH LOGIN\r\n", [334]);
+        $client->executeCommand(\sprintf("%s\r\n", base64_encode($client->getUsername())), [334]);
+        $client->executeCommand(\sprintf("%s\r\n", base64_encode($client->getPassword())), [235]);
+    }
+}

vendor/symfony/mailer/Transport/Smtp/Auth/PlainAuthenticator.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Mailer\Transport\Smtp\Auth;
+
+use Symfony\Component\Mailer\Transport\Smtp\EsmtpTransport;
+
+/**
+ * Handles PLAIN authentication.
+ *
+ * @author Chris Corbyn
+ */
+class PlainAuthenticator implements AuthenticatorInterface
+{
+    public function getAuthKeyword(): string
+    {
+        return 'PLAIN';
+    }
+
+    /**
+     * @see https://www.ietf.org/rfc/rfc4954.txt
+     */
+    public function authenticate(EsmtpTransport $client): void
+    {
+        $client->executeCommand(\sprintf("AUTH PLAIN %s\r\n", base64_encode($client->getUsername().\chr(0).$client->getUsername().\chr(0).$client->getPassword())), [235]);
+    }
+}

vendor/symfony/mailer/Transport/Smtp/Auth/XOAuth2Authenticator.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Mailer\Transport\Smtp\Auth;
+
+use Symfony\Component\Mailer\Transport\Smtp\EsmtpTransport;
+
+/**
+ * Handles XOAUTH2 authentication.
+ *
+ * @author xu.li<AthenaLightenedMyPath@gmail.com>
+ *
+ * @see https://developers.google.com/google-apps/gmail/xoauth2_protocol
+ */
+class XOAuth2Authenticator implements AuthenticatorInterface
+{
+    public function getAuthKeyword(): string
+    {
+        return 'XOAUTH2';
+    }
+
+    /**
+     * @see https://developers.google.com/google-apps/gmail/xoauth2_protocol#the_sasl_xoauth2_mechanism
+     */
+    public function authenticate(EsmtpTransport $client): void
+    {
+        $client->executeCommand('AUTH XOAUTH2 '.base64_encode('user='.$client->getUsername()."\1auth=Bearer ".$client->getPassword()."\1\1")."\r\n", [235]);
+    }
+}