[Console] Allow passing Validator constraints to QuestionHelper and #[Ask]

Application.php

@@ -112,6 +112,11 @@ class Application implements ResetInterface
         $this->dispatcher = $dispatcher;
     }
 
+    public function getDispatcher(): ?EventDispatcherInterface
+    {
+        return $this->dispatcher;
+    }
+
     /**
      * @final
      */

Attribute/Ask.php

@@ -20,6 +20,7 @@ use Symfony\Component\Console\Question\ConfirmationQuestion;
 use Symfony\Component\Console\Question\FileQuestion;
 use Symfony\Component\Console\Question\Question;
 use Symfony\Component\Console\Style\SymfonyStyle;
+use Symfony\Component\Validator\Constraint;
 
 #[\Attribute(\Attribute::TARGET_PARAMETER | \Attribute::TARGET_PROPERTY)]
 class Ask implements InteractiveAttributeInterface
@@ -49,6 +50,8 @@ class Ask implements InteractiveAttributeInterface
         ?callable $normalizer = null,
         ?callable $validator = null,
         public ?int $maxAttempts = null,
+        /** @var Constraint[] */
+        public array $constraints = [],
     ) {
         $this->normalizer = $normalizer ? $normalizer(...) : null;
         $this->validator = $validator ? $validator(...) : null;
@@ -86,6 +89,7 @@ class Ask implements InteractiveAttributeInterface
                 $question = new FileQuestion($self->question);
                 $question->setValidator($self->validator);
                 $question->setMaxAttempts($self->maxAttempts);
+                $question->setConstraints($self->constraints);
                 $value = $io->askQuestion($question);
 
                 if (null === $value && !$reflection->isNullable()) {
@@ -123,6 +127,7 @@ class Ask implements InteractiveAttributeInterface
 
             $question->setValidator($self->validator);
             $question->setMaxAttempts($self->maxAttempts);
+            $question->setConstraints($self->constraints);
 
             if ($self->normalizer) {
                 $question->setNormalizer($self->normalizer);

CHANGELOG.md

@@ -5,8 +5,9 @@ CHANGELOG
 ---
 
  * [BC BREAK] Add `object` support to input options and arguments' default by changing the `$default` type to `mixed` in `InputArgument`, `InputOption`, `#[Argument]` and `#[Option]`
- * Support pasting images with `#[Ask]` on `InputFile` types, supporting Kitty Graphics and iTerm2 protocols
+ * Add support for pasting images with `#[Ask]` on `InputFile` types, supporting Kitty Graphics and iTerm2 protocols
  * Add `FileQuestion`, `InputFile`, `InputFileValueResolver`, and `SymfonyStyle::askFile()` for file input handling
+ * Add `Question::setConstraints()` and `ValidateQuestionInputListener` to validate question input using Validator constraints
  * Add `#[AskChoice]` attribute for interactive choice questions in invokable commands
  * Add support for method-based commands with `#[AsCommand]` attribute
  * Add argument resolver support

Command/InvokableCommand.php

@@ -142,7 +142,7 @@ class InvokableCommand implements SignalableCommandInterface
                 $argument = match ($type->getName()) {
                     InputInterface::class => $input,
                     OutputInterface::class => $output,
-                    SymfonyStyle::class => new SymfonyStyle($input, $output),
+                    SymfonyStyle::class => new SymfonyStyle($input, $output, $this->command->getApplication()?->getDispatcher()),
                     Cursor::class => new Cursor($output),
                     Application::class => $this->command->getApplication(),
                     Command::class, self::class => $this->command,

ConsoleEvents.php

@@ -15,6 +15,7 @@ use Symfony\Component\Console\Event\ConsoleCommandEvent;
 use Symfony\Component\Console\Event\ConsoleErrorEvent;
 use Symfony\Component\Console\Event\ConsoleSignalEvent;
 use Symfony\Component\Console\Event\ConsoleTerminateEvent;
+use Symfony\Component\Console\Event\QuestionAnsweredEvent;
 
 /**
  * Contains all events dispatched by an Application.
@@ -58,6 +59,14 @@ final class ConsoleEvents
      */
     public const ERROR = 'console.error';
 
+    /**
+     * The QUESTION_ANSWERED event allows you to validate user input
+     * using Symfony Validator constraints.
+     *
+     * @Event("Symfony\Component\Console\Event\QuestionAnsweredEvent")
+     */
+    public const QUESTION_ANSWERED = 'console.question_answered';
+
     /**
      * Event aliases.
      *
@@ -68,5 +77,6 @@ final class ConsoleEvents
         ConsoleErrorEvent::class => self::ERROR,
         ConsoleSignalEvent::class => self::SIGNAL,
         ConsoleTerminateEvent::class => self::TERMINATE,
+        QuestionAnsweredEvent::class => self::QUESTION_ANSWERED,
     ];
 }

Event/QuestionAnsweredEvent.php

@@ -0,0 +1,45 @@
+<?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\Console\Event;
+
+use Symfony\Contracts\EventDispatcher\Event;
+
+/**
+ * Event dispatched when constraint validation is needed for a question.
+ *
+ * @author Robin Chalas <robin.chalas@gmail.com>
+ */
+class QuestionAnsweredEvent extends Event
+{
+    private array $violations = [];
+
+    public function __construct(
+        public readonly mixed $value,
+        public readonly array $constraints,
+    ) {
+    }
+
+    public function addViolation(string $message): void
+    {
+        $this->violations[] = $message;
+    }
+
+    public function getViolations(): array
+    {
+        return $this->violations;
+    }
+
+    public function hasViolations(): bool
+    {
+        return (bool) $this->violations;
+    }
+}

EventListener/ValidateQuestionInputListener.php

@@ -0,0 +1,44 @@
+<?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\Console\EventListener;
+
+use Symfony\Component\Console\ConsoleEvents;
+use Symfony\Component\Console\Event\QuestionAnsweredEvent;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+use Symfony\Component\Validator\Validator\ValidatorInterface;
+
+/**
+ * Validates Question answers (user input) using the Validator component.
+ *
+ * @author Robin Chalas <robin.chalas@gmail.com>
+ */
+final class ValidateQuestionInputListener implements EventSubscriberInterface
+{
+    public function __construct(
+        private readonly ValidatorInterface $validator,
+    ) {
+    }
+
+    public function onQuestionAnswered(QuestionAnsweredEvent $event): void
+    {
+        $violations = $this->validator->validate($event->value, $event->constraints);
+
+        foreach ($violations as $violation) {
+            $event->addViolation($violation->getMessage());
+        }
+    }
+
+    public static function getSubscribedEvents(): array
+    {
+        return [ConsoleEvents::QUESTION_ANSWERED => 'onQuestionAnswered'];
+    }
+}

Helper/FileInputHelper.php

@@ -57,7 +57,7 @@ final class FileInputHelper
 
                 $file = $this->readWithPasteDetection($inputStream, $output, $question, $inputHelper);
             } elseif ($question->isPathAllowed()) {
-                $file = $this->readPathInput($inputStream, $output, $question);
+                $file = $this->readPathInput($inputStream);
             } else {
                 throw new MissingInputException('Terminal does not support image paste and path input is disabled.');
             }
@@ -68,7 +68,10 @@ final class FileInputHelper
             }
         }
 
-        $this->validateFile($file, $question);
+        if (!$file->isValid()) {
+            throw new InvalidFileException(\sprintf('File "%s" is not valid or readable.', $file->getPathname()));
+        }
+
         $this->displayFile($output, $file);
 
         return $file;
@@ -153,7 +156,7 @@ final class FileInputHelper
     /**
      * @param resource $inputStream
      */
-    private function readPathInput($inputStream, OutputInterface $output, FileQuestion $question): InputFile
+    private function readPathInput($inputStream): InputFile
     {
         if (!$isBlocked = stream_get_meta_data($inputStream)['blocked'] ?? true) {
             stream_set_blocking($inputStream, true);
@@ -176,27 +179,6 @@ final class FileInputHelper
         return InputFile::fromPath($path);
     }
 
-    private function validateFile(InputFile $file, FileQuestion $question): void
-    {
-        if (!$file->isValid()) {
-            throw new InvalidFileException(\sprintf('File "%s" is not valid or readable.', $file->getPathname()));
-        }
-
-        if (null !== $question->getMaxFileSize() && $file->getSize() > $question->getMaxFileSize()) {
-            throw new InvalidFileException(\sprintf('File "%s" is too large (%s). Maximum allowed size is %s.', $file->getFilename(), $file->getHumanReadableSize(), $this->formatBytes($question->getMaxFileSize())));
-        }
-
-        if (!$question->getAllowedMimeTypes()) {
-            return;
-        }
-
-        $mimeType = $file->getMimeType();
-
-        if (null === $mimeType || !$question->isMimeTypeAllowed($mimeType)) {
-            throw new InvalidFileException(\sprintf('File "%s" has MIME type "%s" which is not allowed. Allowed types: %s.', $file->getFilename(), $mimeType ?? 'unknown', implode(', ', $question->getAllowedMimeTypes())));
-        }
-    }
-
     private function detectProtocol(): ?ImageProtocolInterface
     {
         if (Terminal::supportsKittyGraphics()) {
@@ -232,13 +214,4 @@ final class FileInputHelper
         $output->write($protocol->encode($contents, 16));
         $output->writeln('');
     }
-
-    private function formatBytes(int $bytes): string
-    {
-        $units = ['B', 'KB', 'MB', 'GB'];
-        $power = $bytes > 0 ? floor(log($bytes, 1024)) : 0;
-        $power = min($power, \count($units) - 1);
-
-        return \sprintf('%.1f %s', $bytes / (1024 ** $power), $units[$power]);
-    }
 }

Helper/QuestionHelper.php

@@ -11,7 +11,10 @@
 
 namespace Symfony\Component\Console\Helper;
 
+use Symfony\Component\Console\ConsoleEvents;
 use Symfony\Component\Console\Cursor;
+use Symfony\Component\Console\Event\QuestionAnsweredEvent;
+use Symfony\Component\Console\Exception\InvalidArgumentException;
 use Symfony\Component\Console\Exception\MissingInputException;
 use Symfony\Component\Console\Exception\RuntimeException;
 use Symfony\Component\Console\Formatter\OutputFormatter;
@@ -25,6 +28,8 @@ use Symfony\Component\Console\Question\ChoiceQuestion;
 use Symfony\Component\Console\Question\FileQuestion;
 use Symfony\Component\Console\Question\Question;
 use Symfony\Component\Console\Terminal;
+use Symfony\Component\Validator\Validation;
+use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
 
 use function Symfony\Component\String\s;
 
@@ -38,6 +43,11 @@ class QuestionHelper extends Helper
     private static bool $stty = true;
     private static bool $stdinIsInteractive;
 
+    public function __construct(
+        private ?EventDispatcherInterface $dispatcher = null,
+    ) {
+    }
+
     /**
      * Asks a question to the user.
      *
@@ -59,7 +69,7 @@ class QuestionHelper extends Helper
         $inputStream ??= \STDIN;
 
         try {
-            if (!$question->getValidator()) {
+            if (!$question->getValidator() && !$question->getConstraints()) {
                 return $this->doAsk($inputStream, $output, $question);
             }
 
@@ -471,7 +481,17 @@ class QuestionHelper extends Helper
             }
 
             try {
-                return $question->getValidator()($interviewer());
+                $value = $interviewer();
+
+                if ($constraints = $question->getConstraints()) {
+                    $this->validateConstraints($value, $constraints);
+                }
+
+                if ($validator = $question->getValidator()) {
+                    return $validator($value);
+                }
+
+                return $value;
             } catch (RuntimeException $e) {
                 throw $e;
             } catch (\Exception $error) {
@@ -481,6 +501,27 @@ class QuestionHelper extends Helper
         throw $error;
     }
 
+    private function validateConstraints(mixed $value, array $constraints): void
+    {
+        if ($this->dispatcher) {
+            $event = new QuestionAnsweredEvent($value, $constraints);
+            $this->dispatcher->dispatch($event, ConsoleEvents::QUESTION_ANSWERED);
+
+            if ($event->hasViolations()) {
+                throw new InvalidArgumentException($event->getViolations()[0]);
+            }
+
+            return;
+        }
+
+        $validator = Validation::createValidator();
+        $violations = $validator->validate($value, $constraints);
+
+        if (\count($violations) > 0) {
+            throw new InvalidArgumentException($violations[0]->getMessage());
+        }
+    }
+
     private function isInteractiveInput($inputStream): bool
     {
         if ('php://stdin' !== (stream_get_meta_data($inputStream)['uri'] ?? null)) {

Question/FileQuestion.php

@@ -20,18 +20,10 @@ use Symfony\Component\Console\Exception\InvalidArgumentException;
  */
 class FileQuestion extends Question
 {
-    /** @var string[] */
-    private array $allowedMimeTypes;
-    private ?int $maxFileSize;
-    private bool $allowPaste;
-    private bool $allowPath;
-
     public function __construct(
         string $question,
-        array $allowedMimeTypes = [],
-        ?int $maxFileSize = 5 * 1024 * 1024,
-        bool $allowPaste = true,
-        bool $allowPath = true,
+        private bool $allowPaste = true,
+        private bool $allowPath = true,
     ) {
         parent::__construct($question);
 
@@ -39,27 +31,9 @@ class FileQuestion extends Question
             throw new InvalidArgumentException('At least one of allowPaste or allowPath must be true.');
         }
 
-        $this->allowedMimeTypes = $allowedMimeTypes;
-        $this->maxFileSize = $maxFileSize;
-        $this->allowPaste = $allowPaste;
-        $this->allowPath = $allowPath;
-
         $this->setTrimmable(false);
     }
 
-    /**
-     * @return string[]
-     */
-    public function getAllowedMimeTypes(): array
-    {
-        return $this->allowedMimeTypes;
-    }
-
-    public function getMaxFileSize(): ?int
-    {
-        return $this->maxFileSize;
-    }
-
     public function isPasteAllowed(): bool
     {
         return $this->allowPaste;
@@ -69,26 +43,4 @@ class FileQuestion extends Question
     {
         return $this->allowPath;
     }
-
-    public function isMimeTypeAllowed(string $mimeType): bool
-    {
-        if (!$this->allowedMimeTypes) {
-            return true;
-        }
-
-        foreach ($this->allowedMimeTypes as $allowedType) {
-            if ($mimeType === $allowedType) {
-                return true;
-            }
-
-            if (str_ends_with($allowedType, '/*')) {
-                $prefix = substr($allowedType, 0, -1);
-                if (str_starts_with($mimeType, $prefix)) {
-                    return true;
-                }
-            }
-        }
-
-        return false;
-    }
 }

Question/Question.php

@@ -13,6 +13,7 @@ namespace Symfony\Component\Console\Question;
 
 use Symfony\Component\Console\Exception\InvalidArgumentException;
 use Symfony\Component\Console\Exception\LogicException;
+use Symfony\Component\Validator\Constraint;
 
 /**
  * Represents a Question.
@@ -39,6 +40,10 @@ class Question
     private bool $trimmable = true;
     private bool $multiline = false;
     private ?int $timeout = null;
+    /**
+     * @var Constraint[]
+     */
+    private array $constraints = [];
 
     /**
      * @param string                     $question The question to ask to the user
@@ -316,4 +321,24 @@ class Question
 
         return $this;
     }
+
+    /**
+     * @param Constraint[] $constraints
+     *
+     * @return $this
+     */
+    public function setConstraints(array $constraints): static
+    {
+        $this->constraints = $constraints;
+
+        return $this;
+    }
+
+    /**
+     * @return Constraint[]
+     */
+    public function getConstraints(): array
+    {
+        return $this->constraints;
+    }
 }

Style/SymfonyStyle.php

@@ -35,6 +35,7 @@ use Symfony\Component\Console\Question\ConfirmationQuestion;
 use Symfony\Component\Console\Question\FileQuestion;
 use Symfony\Component\Console\Question\Question;
 use Symfony\Component\Console\Terminal;
+use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
 
 /**
  * Output decorator helpers for the Symfony Style Guide.
@@ -53,6 +54,7 @@ class SymfonyStyle extends OutputStyle
     public function __construct(
         private InputInterface $input,
         private OutputInterface $output,
+        private ?EventDispatcherInterface $dispatcher = null,
     ) {
         $this->bufferedOutput = new TrimmedBufferOutput(\DIRECTORY_SEPARATOR === '\\' ? 4 : 2, $output->getVerbosity(), false, clone $output->getFormatter());
         // Windows cmd wraps lines as soon as the terminal width is reached, whether there are following chars or not.
@@ -249,9 +251,9 @@ class SymfonyStyle extends OutputStyle
         return $this->askQuestion($questionChoice);
     }
 
-    public function askFile(string $question, array $allowedMimeTypes = []): ?InputFile
+    public function askFile(string $question): ?InputFile
     {
-        return $this->askQuestion(new FileQuestion($question, $allowedMimeTypes));
+        return $this->askQuestion(new FileQuestion($question));
     }
 
     public function progressStart(int $max = 0): void
@@ -309,7 +311,7 @@ class SymfonyStyle extends OutputStyle
             $this->autoPrependBlock();
         }
 
-        $this->questionHelper ??= new SymfonyQuestionHelper();
+        $this->questionHelper ??= new SymfonyQuestionHelper($this->dispatcher);
 
         $answer = $this->questionHelper->ask($this->input, $this, $question);
 

Tests/Command/InvokableCommandTest.php

@@ -35,6 +35,8 @@ use Symfony\Component\Console\Output\OutputInterface;
 use Symfony\Component\Console\Style\SymfonyStyle;
 use Symfony\Component\Console\Tester\CommandTester;
 use Symfony\Component\Console\Tests\Fixtures\InvokableTestCommand;
+use Symfony\Component\Console\Tests\Fixtures\InvokableWithCustomValidatorTestCommand;
+use Symfony\Component\Console\Tests\Fixtures\InvokableWithInputFileAndConstraintsTestCommand;
 
 class InvokableCommandTest extends TestCase
 {
@@ -555,6 +557,42 @@ class InvokableCommandTest extends TestCase
     {
         return ['ROLE_ADMIN', 'ROLE_USER'];
     }
+
+    public function testAskWithInputFileAndConstraints()
+    {
+        if (!\extension_loaded('fileinfo')) {
+            $this->markTestSkipped('The "fileinfo" extension is required for this test.');
+        }
+
+        $pngData = base64_decode('iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+M9QDwADhgGAWjR9awAAAABJRU5ErkJggg==');
+        $tempFile = sys_get_temp_dir().'/test_image_'.uniqid().'.png';
+        file_put_contents($tempFile, $pngData);
+
+        try {
+            $tester = new CommandTester(new InvokableWithInputFileAndConstraintsTestCommand());
+            $tester->setInputs([$tempFile]);
+            $tester->execute([], ['interactive' => true]);
+            $tester->assertCommandIsSuccessful();
+
+            self::assertStringContainsString('Provide an image file:', $tester->getDisplay());
+            self::assertStringContainsString('Filename:', $tester->getDisplay());
+            self::assertStringContainsString('Valid: yes', $tester->getDisplay());
+        } finally {
+            @unlink($tempFile);
+        }
+    }
+
+    public function testAskWithCustomValidatorIsNotOverwritten()
+    {
+        $tester = new CommandTester(new InvokableWithCustomValidatorTestCommand());
+        $tester->setInputs(['invalid', 'valid']);
+        $tester->execute([], ['interactive' => true]);
+        $tester->assertCommandIsSuccessful();
+
+        self::assertStringContainsString('Enter a value:', $tester->getDisplay());
+        self::assertStringContainsString('Value must be "valid"', $tester->getDisplay());
+        self::assertStringContainsString('Value: valid', $tester->getDisplay());
+    }
 }
 
 enum StringEnum: string

Tests/Fixtures/InvokableWithCustomValidatorTestCommand.php

@@ -0,0 +1,42 @@
+<?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\Console\Tests\Fixtures;
+
+use Symfony\Component\Console\Attribute\Argument;
+use Symfony\Component\Console\Attribute\AsCommand;
+use Symfony\Component\Console\Attribute\Ask;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Output\OutputInterface;
+
+#[AsCommand(name: 'app:custom-validator')]
+class InvokableWithCustomValidatorTestCommand
+{
+    public function __invoke(
+        OutputInterface $output,
+        #[Argument]
+        #[Ask('Enter a value:', validator: [self::class, 'validate'])]
+        string $value,
+    ): int {
+        $output->writeln('Value: '.$value);
+
+        return Command::SUCCESS;
+    }
+
+    public static function validate(string $value): string
+    {
+        if ('valid' !== $value) {
+            throw new \RuntimeException('Value must be "valid"');
+        }
+
+        return $value;
+    }
+}

Tests/Fixtures/InvokableWithInputFileAndConstraintsTestCommand.php

@@ -0,0 +1,36 @@
+<?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\Console\Tests\Fixtures;
+
+use Symfony\Component\Console\Attribute\Argument;
+use Symfony\Component\Console\Attribute\AsCommand;
+use Symfony\Component\Console\Attribute\Ask;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\File\InputFile;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Validator\Constraints\File;
+
+#[AsCommand(name: 'app:input-file-with-constraints')]
+class InvokableWithInputFileAndConstraintsTestCommand
+{
+    public function __invoke(
+        OutputInterface $output,
+        #[Argument]
+        #[Ask('Provide an image file:', constraints: [new File(mimeTypes: ['image/png', 'image/jpeg'])])]
+        InputFile $file,
+    ): int {
+        $output->writeln('Filename: '.$file->getFilename());
+        $output->writeln('Valid: '.($file->isValid() ? 'yes' : 'no'));
+
+        return Command::SUCCESS;
+    }
+}

Tests/Helper/QuestionHelperTest.php

@@ -29,8 +29,11 @@ use Symfony\Component\Console\Question\ConfirmationQuestion;
 use Symfony\Component\Console\Question\Question;
 use Symfony\Component\Console\Terminal;
 use Symfony\Component\Console\Tester\ApplicationTester;
+use Symfony\Component\EventDispatcher\EventDispatcher;
 use Symfony\Component\Process\Exception\ProcessSignaledException;
 use Symfony\Component\Process\Process;
+use Symfony\Component\Validator\Constraints\Url;
+use Symfony\Component\Validator\Validation;
 
 #[Group('tty')]
 class QuestionHelperTest extends AbstractQuestionHelperTestCase
@@ -1022,6 +1025,73 @@ class QuestionHelperTest extends AbstractQuestionHelperTestCase
 
         return $mock;
     }
+
+    public function testAskWithConstraintsWithoutDispatcherValidValue()
+    {
+        $dialog = new QuestionHelper();
+
+        $question = new Question('Enter a URL');
+        $question->setConstraints([new Url()]);
+
+        $inputStream = $this->getInputStream("https://symfony.com\n");
+
+        $this->assertEquals('https://symfony.com', $dialog->ask($this->createStreamableInputInterfaceMock($inputStream), $this->createOutputInterface(), $question));
+    }
+
+    public function testAskWithConstraintsWithoutDispatcherInvalidThenValid()
+    {
+        $dialog = new QuestionHelper();
+
+        $question = new Question('Enter a URL');
+        $question->setConstraints([new Url()]);
+
+        $inputStream = $this->getInputStream("not-a-url\nhttps://symfony.com\n");
+
+        $output = $this->createOutputInterface();
+        $this->assertEquals('https://symfony.com', $dialog->ask($this->createStreamableInputInterfaceMock($inputStream), $output, $question));
+
+        rewind($output->getStream());
+        $outputContent = stream_get_contents($output->getStream());
+        $this->assertStringContainsString('This value is not a valid URL.', $outputContent);
+    }
+
+    public function testAskWithConstraintsWithoutDispatcherExceedsMaxAttempts()
+    {
+        $dialog = new QuestionHelper();
+
+        $question = new Question('Enter a URL');
+        $question->setConstraints([new Url()]);
+        $question->setMaxAttempts(1);
+
+        $inputStream = $this->getInputStream("not-a-url\n");
+
+        $this->expectException(\Exception::class);
+        $this->expectExceptionMessage('This value is not a valid URL.');
+
+        $dialog->ask($this->createStreamableInputInterfaceMock($inputStream), $this->createOutputInterface(), $question);
+    }
+
+    public function testAskWithConstraintsWithDispatcher()
+    {
+        $dispatcher = new EventDispatcher();
+        $dispatcher->addSubscriber(new \Symfony\Component\Console\EventListener\ValidateQuestionInputListener(
+            Validation::createValidator()
+        ));
+
+        $dialog = new QuestionHelper($dispatcher);
+
+        $question = new Question('Enter a URL');
+        $question->setConstraints([new Url()]);
+
+        $inputStream = $this->getInputStream("not-a-url\nhttps://symfony.com\n");
+
+        $output = $this->createOutputInterface();
+        $this->assertEquals('https://symfony.com', $dialog->ask($this->createStreamableInputInterfaceMock($inputStream), $output, $question));
+
+        rewind($output->getStream());
+        $outputContent = stream_get_contents($output->getStream());
+        $this->assertStringContainsString('This value is not a valid URL.', $outputContent);
+    }
 }
 
 class AutocompleteValues implements \IteratorAggregate

Tests/Question/FileQuestionTest.php

@@ -11,10 +11,10 @@
 
 namespace Symfony\Component\Console\Tests\Question;
 
-use PHPUnit\Framework\Attributes\DataProvider;
 use PHPUnit\Framework\TestCase;
 use Symfony\Component\Console\Exception\InvalidArgumentException;
 use Symfony\Component\Console\Question\FileQuestion;
+use Symfony\Component\Validator\Constraints\File;
 
 class FileQuestionTest extends TestCase
 {
@@ -29,37 +29,21 @@ class FileQuestionTest extends TestCase
     {
         $question = new FileQuestion('Provide a file:');
 
-        $this->assertSame([], $question->getAllowedMimeTypes());
-        $this->assertSame(5 * 1024 * 1024, $question->getMaxFileSize());
         $this->assertTrue($question->isPasteAllowed());
         $this->assertTrue($question->isPathAllowed());
         $this->assertFalse($question->isTrimmable());
     }
 
-    public function testWithAllowedMimeTypes()
-    {
-        $question = new FileQuestion('Provide a file:', ['image/png', 'image/jpeg']);
-
-        $this->assertSame(['image/png', 'image/jpeg'], $question->getAllowedMimeTypes());
-    }
-
-    public function testWithMaxFileSize()
-    {
-        $question = new FileQuestion('Provide a file:', [], 1024 * 1024);
-
-        $this->assertSame(1024 * 1024, $question->getMaxFileSize());
-    }
-
     public function testWithAllowPasteFalse()
     {
-        $question = new FileQuestion('Provide a file:', [], null, false);
+        $question = new FileQuestion('Provide a file:', false);
 
         $this->assertFalse($question->isPasteAllowed());
     }
 
     public function testWithAllowPathFalse()
     {
-        $question = new FileQuestion('Provide a file:', [], null, true, false);
+        $question = new FileQuestion('Provide a file:', true, false);
 
         $this->assertFalse($question->isPathAllowed());
     }
@@ -69,43 +53,7 @@ class FileQuestionTest extends TestCase
         $this->expectException(InvalidArgumentException::class);
         $this->expectExceptionMessage('At least one of allowPaste or allowPath must be true.');
 
-        new FileQuestion('Provide a file:', [], null, false, false);
-    }
-
-    #[DataProvider('provideMimeTypeMatches')]
-    public function testIsMimeTypeAllowed(array $allowedTypes, string $mimeType, bool $expected)
-    {
-        $question = new FileQuestion('Provide a file:', $allowedTypes);
-
-        $this->assertSame($expected, $question->isMimeTypeAllowed($mimeType));
-    }
-
-    public static function provideMimeTypeMatches(): iterable
-    {
-        // Empty allowed types allows all
-        yield 'empty allows all' => [[], 'image/png', true];
-        yield 'empty allows all - text' => [[], 'text/plain', true];
-
-        // Exact matches
-        yield 'exact match png' => [['image/png'], 'image/png', true];
-        yield 'exact match jpeg' => [['image/jpeg'], 'image/jpeg', true];
-        yield 'no match' => [['image/png'], 'image/jpeg', false];
-
-        // Multiple allowed types
-        yield 'multiple - first match' => [['image/png', 'image/jpeg'], 'image/png', true];
-        yield 'multiple - second match' => [['image/png', 'image/jpeg'], 'image/jpeg', true];
-        yield 'multiple - no match' => [['image/png', 'image/jpeg'], 'image/gif', false];
-
-        // Wildcard matches
-        yield 'wildcard image/*' => [['image/*'], 'image/png', true];
-        yield 'wildcard image/* - jpeg' => [['image/*'], 'image/jpeg', true];
-        yield 'wildcard image/* - gif' => [['image/*'], 'image/gif', true];
-        yield 'wildcard no match' => [['image/*'], 'application/pdf', false];
-
-        // Mixed exact and wildcard
-        yield 'mixed - exact match' => [['application/pdf', 'image/*'], 'application/pdf', true];
-        yield 'mixed - wildcard match' => [['application/pdf', 'image/*'], 'image/png', true];
-        yield 'mixed - no match' => [['application/pdf', 'image/*'], 'text/plain', false];
+        new FileQuestion('Provide a file:', false, false);
     }
 
     public function testIsNotTrimmableByDefault()
@@ -114,4 +62,18 @@ class FileQuestionTest extends TestCase
 
         $this->assertFalse($question->isTrimmable());
     }
+
+    public function testSupportsConstraints()
+    {
+        if (!class_exists(File::class)) {
+            $this->markTestSkipped('Validator component not available.');
+        }
+
+        $question = new FileQuestion('Provide a file:');
+        $constraint = new File(maxSize: '5M', mimeTypes: ['image/png']);
+
+        $question->setConstraints([$constraint]);
+
+        $this->assertSame([$constraint], $question->getConstraints());
+    }
 }

composer.json

@@ -31,9 +31,11 @@
         "symfony/http-kernel": "^7.4|^8.0",
         "symfony/lock": "^7.4|^8.0",
         "symfony/messenger": "^7.4|^8.0",
+        "symfony/mime": "^7.4|^8.0",
         "symfony/process": "^7.4|^8.0",
         "symfony/stopwatch": "^7.4|^8.0",
         "symfony/uid": "^7.4|^8.0",
+        "symfony/validator": "^7.4|^8.0",
         "symfony/var-dumper": "^7.4|^8.0"
     },
     "provide": {