Version 1

[yaffs-website] / vendor / symfony / validator / Constraints / EmailValidator.php

diff --git a/vendor/symfony/validator/Constraints/EmailValidator.php b/vendor/symfony/validator/Constraints/EmailValidator.php
new file mode 100644 (file)
index 0000000..6ae25e0
--- /dev/null
+++ b/vendor/symfony/validator/Constraints/EmailValidator.php
@@ -0,0 +1,155 @@
+<?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\Validator\Constraints;
+
+use Symfony\Component\Validator\Context\ExecutionContextInterface;
+use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\ConstraintValidator;
+use Symfony\Component\Validator\Exception\RuntimeException;
+use Symfony\Component\Validator\Exception\UnexpectedTypeException;
+
+/**
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ */
+class EmailValidator extends ConstraintValidator
+{
+    /**
+     * @var bool
+     */
+    private $isStrict;
+
+    public function __construct($strict = false)
+    {
+        $this->isStrict = $strict;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function validate($value, Constraint $constraint)
+    {
+        if (!$constraint instanceof Email) {
+            throw new UnexpectedTypeException($constraint, __NAMESPACE__.'\Email');
+        }
+
+        if (null === $value || '' === $value) {
+            return;
+        }
+
+        if (!is_scalar($value) && !(is_object($value) && method_exists($value, '__toString'))) {
+            throw new UnexpectedTypeException($value, 'string');
+        }
+
+        $value = (string) $value;
+
+        if (null === $constraint->strict) {
+            $constraint->strict = $this->isStrict;
+        }
+
+        if ($constraint->strict) {
+            if (!class_exists('\Egulias\EmailValidator\EmailValidator') || interface_exists('\Egulias\EmailValidator\Validation\EmailValidation')) {
+                throw new RuntimeException('Strict email validation requires egulias/email-validator:~1.2');
+            }
+
+            $strictValidator = new \Egulias\EmailValidator\EmailValidator();
+
+            if (!$strictValidator->isValid($value, false, true)) {
+                if ($this->context instanceof ExecutionContextInterface) {
+                    $this->context->buildViolation($constraint->message)
+                        ->setParameter('{{ value }}', $this->formatValue($value))
+                        ->setCode(Email::INVALID_FORMAT_ERROR)
+                        ->addViolation();
+                } else {
+                    $this->buildViolation($constraint->message)
+                        ->setParameter('{{ value }}', $this->formatValue($value))
+                        ->setCode(Email::INVALID_FORMAT_ERROR)
+                        ->addViolation();
+                }
+
+                return;
+            }
+        } elseif (!preg_match('/^.+\@\S+\.\S+$/', $value)) {
+            if ($this->context instanceof ExecutionContextInterface) {
+                $this->context->buildViolation($constraint->message)
+                    ->setParameter('{{ value }}', $this->formatValue($value))
+                    ->setCode(Email::INVALID_FORMAT_ERROR)
+                    ->addViolation();
+            } else {
+                $this->buildViolation($constraint->message)
+                    ->setParameter('{{ value }}', $this->formatValue($value))
+                    ->setCode(Email::INVALID_FORMAT_ERROR)
+                    ->addViolation();
+            }
+
+            return;
+        }
+
+        $host = substr($value, strrpos($value, '@') + 1);
+
+        // Check for host DNS resource records
+        if ($constraint->checkMX) {
+            if (!$this->checkMX($host)) {
+                if ($this->context instanceof ExecutionContextInterface) {
+                    $this->context->buildViolation($constraint->message)
+                        ->setParameter('{{ value }}', $this->formatValue($value))
+                        ->setCode(Email::MX_CHECK_FAILED_ERROR)
+                        ->addViolation();
+                } else {
+                    $this->buildViolation($constraint->message)
+                        ->setParameter('{{ value }}', $this->formatValue($value))
+                        ->setCode(Email::MX_CHECK_FAILED_ERROR)
+                        ->addViolation();
+                }
+            }
+
+            return;
+        }
+
+        if ($constraint->checkHost && !$this->checkHost($host)) {
+            if ($this->context instanceof ExecutionContextInterface) {
+                $this->context->buildViolation($constraint->message)
+                    ->setParameter('{{ value }}', $this->formatValue($value))
+                    ->setCode(Email::HOST_CHECK_FAILED_ERROR)
+                    ->addViolation();
+            } else {
+                $this->buildViolation($constraint->message)
+                    ->setParameter('{{ value }}', $this->formatValue($value))
+                    ->setCode(Email::HOST_CHECK_FAILED_ERROR)
+                    ->addViolation();
+            }
+        }
+    }
+
+    /**
+     * Check DNS Records for MX type.
+     *
+     * @param string $host Host
+     *
+     * @return bool
+     */
+    private function checkMX($host)
+    {
+        return checkdnsrr($host, 'MX');
+    }
+
+    /**
+     * Check if one of MX, A or AAAA DNS RR exists.
+     *
+     * @param string $host Host
+     *
+     * @return bool
+     */
+    private function checkHost($host)
+    {
+        return $this->checkMX($host) || (checkdnsrr($host, 'A') || checkdnsrr($host, 'AAAA'));
+    }
+}