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File / Folder	Size	Action
.	-
DebugFormatterHelper.php	3.242KB	edt ren
DescriptorHelper.php	2.575KB	edt ren
Dumper.php	1.787KB	edt ren
FormatterHelper.php	2.183KB	edt ren
Helper.php	4.646KB	edt ren
HelperInterface.php	0.821KB	edt ren
HelperSet.php	1.822KB	edt ren
InputAwareHelper.php	0.729KB	edt ren
OutputWrapper.php	2.938KB	edt ren
ProcessHelper.php	4.645KB	edt ren
ProgressBar.php	19.303KB	edt ren
ProgressIndicator.php	6.83KB	edt ren
QuestionHelper.php	19.373KB	edt ren
SymfonyQuestionHelper.php	3.2KB	edt ren
Table.php	31.178KB	edt ren
TableCell.php	1.718KB	edt ren
TableCellStyle.php	2.161KB	edt ren
TableRows.php	0.576KB	edt ren
TableSeparator.php	0.519KB	edt ren
TableStyle.php	12.461KB	edt ren

<?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\Helper;

use Symfony\Component\Console\Cursor;
use Symfony\Component\Console\Exception\MissingInputException;
use Symfony\Component\Console\Exception\RuntimeException;
use Symfony\Component\Console\Formatter\OutputFormatter;
use Symfony\Component\Console\Formatter\OutputFormatterStyle;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\StreamableInputInterface;
use Symfony\Component\Console\Output\ConsoleOutputInterface;
use Symfony\Component\Console\Output\ConsoleSectionOutput;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Question\ChoiceQuestion;
use Symfony\Component\Console\Question\Question;
use Symfony\Component\Console\Terminal;

use function Symfony\Component\String\s;

/**
 * The QuestionHelper class provides helpers to interact with the user.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 */
class QuestionHelper extends Helper
{
    /**
     * @var resource|null
     */
    private $inputStream;

private static bool $stty = true;
    private static bool $stdinIsInteractive;

/**
     * Asks a question to the user.
     *
     * @return mixed The user answer
     *
     * @throws RuntimeException If there is no data to read in the input stream
     */
    public function ask(InputInterface $input, OutputInterface $output, Question $question): mixed
    {
        if ($output instanceof ConsoleOutputInterface) {
            $output = $output->getErrorOutput();
        }

if (!$input->isInteractive()) {
            return $this->getDefaultAnswer($question);
        }

if ($input instanceof StreamableInputInterface && $stream = $input->getStream()) {
            $this->inputStream = $stream;
        }

try {
            if (!$question->getValidator()) {
                return $this->doAsk($output, $question);
            }

$interviewer = fn () => $this->doAsk($output, $question);

return $this->validateAttempts($interviewer, $output, $question);
        } catch (MissingInputException $exception) {
            $input->setInteractive(false);

if (null === $fallbackOutput = $this->getDefaultAnswer($question)) {
                throw $exception;
            }

return $fallbackOutput;
        }
    }

public function getName(): string
    {
        return 'question';
    }

/**
     * Prevents usage of stty.
     *
     * @return void
     */
    public static function disableStty()
    {
        self::$stty = false;
    }

/**
     * Asks the question to the user.
     *
     * @throws RuntimeException In case the fallback is deactivated and the response cannot be hidden
     */
    private function doAsk(OutputInterface $output, Question $question): mixed
    {
        $this->writePrompt($output, $question);

$inputStream = $this->inputStream ?: \STDIN;
        $autocomplete = $question->getAutocompleterCallback();

if (null === $autocomplete || !self::$stty || !Terminal::hasSttyAvailable()) {
            $ret = false;
            if ($question->isHidden()) {
                try {
                    $hiddenResponse = $this->getHiddenResponse($output, $inputStream, $question->isTrimmable());
                    $ret = $question->isTrimmable() ? trim($hiddenResponse) : $hiddenResponse;
                } catch (RuntimeException $e) {
                    if (!$question->isHiddenFallback()) {
                        throw $e;
                    }
                }
            }

if (false === $ret) {
                $isBlocked = stream_get_meta_data($inputStream)['blocked'] ?? true;

if (!$isBlocked) {
                    stream_set_blocking($inputStream, true);
                }

$ret = $this->readInput($inputStream, $question);

if (!$isBlocked) {
                    stream_set_blocking($inputStream, false);
                }

if (false === $ret) {
                    throw new MissingInputException('Aborted.');
                }
                if ($question->isTrimmable()) {
                    $ret = trim($ret);
                }
            }
        } else {
            $autocomplete = $this->autocomplete($output, $question, $inputStream, $autocomplete);
            $ret = $question->isTrimmable() ? trim($autocomplete) : $autocomplete;
        }

if ($output instanceof ConsoleSectionOutput) {
            $output->addContent(''); // add EOL to the question
            $output->addContent($ret);
        }

$ret = \strlen($ret) > 0 ? $ret : $question->getDefault();

if ($normalizer = $question->getNormalizer()) {
            return $normalizer($ret);
        }

return $ret;
    }

private function getDefaultAnswer(Question $question): mixed
    {
        $default = $question->getDefault();

if (null === $default) {
            return $default;
        }

if ($validator = $question->getValidator()) {
            return \call_user_func($validator, $default);
        } elseif ($question instanceof ChoiceQuestion) {
            $choices = $question->getChoices();

if (!$question->isMultiselect()) {
                return $choices[$default] ?? $default;
            }

$default = explode(',', $default);
            foreach ($default as $k => $v) {
                $v = $question->isTrimmable() ? trim($v) : $v;
                $default[$k] = $choices[$v] ?? $v;
            }
        }

return $default;
    }

/**
     * Outputs the question prompt.
     *
     * @return void
     */
    protected function writePrompt(OutputInterface $output, Question $question)
    {
        $message = $question->getQuestion();

if ($question instanceof ChoiceQuestion) {
            $output->writeln(array_merge([
                $question->getQuestion(),
            ], $this->formatChoiceQuestionChoices($question, 'info')));

$message = $question->getPrompt();
        }

$output->write($message);
    }

/**
     * @return string[]
     */
    protected function formatChoiceQuestionChoices(ChoiceQuestion $question, string $tag): array
    {
        $messages = [];

$maxWidth = max(array_map([__CLASS__, 'width'], array_keys($choices = $question->getChoices())));

foreach ($choices as $key => $value) {
            $padding = str_repeat(' ', $maxWidth - self::width($key));

$messages[] = sprintf("  [<$tag>%s$padding</$tag>] %s", $key, $value);
        }

return $messages;
    }

/**
     * Outputs an error message.
     *
     * @return void
     */
    protected function writeError(OutputInterface $output, \Exception $error)
    {
        if (null !== $this->getHelperSet() && $this->getHelperSet()->has('formatter')) {
            $message = $this->getHelperSet()->get('formatter')->formatBlock($error->getMessage(), 'error');
        } else {
            $message = '<error>'.$error->getMessage().'</error>';
        }

$output->writeln($message);
    }

/**
     * Autocompletes a question.
     *
     * @param resource $inputStream
     */
    private function autocomplete(OutputInterface $output, Question $question, $inputStream, callable $autocomplete): string
    {
        $cursor = new Cursor($output, $inputStream);

$fullChoice = '';
        $ret = '';

$i = 0;
        $ofs = -1;
        $matches = $autocomplete($ret);
        $numMatches = \count($matches);

$sttyMode = shell_exec('stty -g');
        $isStdin = 'php://stdin' === (stream_get_meta_data($inputStream)['uri'] ?? null);
        $r = [$inputStream];
        $w = [];

// Disable icanon (so we can fread each keypress) and echo (we'll do echoing here instead)
        shell_exec('stty -icanon -echo');

// Add highlighted text style
        $output->getFormatter()->setStyle('hl', new OutputFormatterStyle('black', 'white'));

// Read a keypress
        while (!feof($inputStream)) {
            while ($isStdin && 0 === @stream_select($r, $w, $w, 0, 100)) {
                // Give signal handlers a chance to run
                $r = [$inputStream];
            }
            $c = fread($inputStream, 1);

// as opposed to fgets(), fread() returns an empty string when the stream content is empty, not false.
            if (false === $c || ('' === $ret && '' === $c && null === $question->getDefault())) {
                shell_exec('stty '.$sttyMode);
                throw new MissingInputException('Aborted.');
            } elseif ("\177" === $c) { // Backspace Character
                if (0 === $numMatches && 0 !== $i) {
                    --$i;
                    $cursor->moveLeft(s($fullChoice)->slice(-1)->width(false));

$fullChoice = self::substr($fullChoice, 0, $i);
                }

if (0 === $i) {
                    $ofs = -1;
                    $matches = $autocomplete($ret);
                    $numMatches = \count($matches);
                } else {
                    $numMatches = 0;
                }

// Pop the last character off the end of our string
                $ret = self::substr($ret, 0, $i);
            } elseif ("\033" === $c) {
                // Did we read an escape sequence?
                $c .= fread($inputStream, 2);

// A = Up Arrow. B = Down Arrow
                if (isset($c[2]) && ('A' === $c[2] || 'B' === $c[2])) {
                    if ('A' === $c[2] && -1 === $ofs) {
                        $ofs = 0;
                    }

if (0 === $numMatches) {
                        continue;
                    }

$ofs += ('A' === $c[2]) ? -1 : 1;
                    $ofs = ($numMatches + $ofs) % $numMatches;
                }
            } elseif (\ord($c) < 32) {
                if ("\t" === $c || "\n" === $c) {
                    if ($numMatches > 0 && -1 !== $ofs) {
                        $ret = (string) $matches[$ofs];
                        // Echo out remaining chars for current match
                        $remainingCharacters = substr($ret, \strlen(trim($this->mostRecentlyEnteredValue($fullChoice))));
                        $output->write($remainingCharacters);
                        $fullChoice .= $remainingCharacters;
                        $i = (false === $encoding = mb_detect_encoding($fullChoice, null, true)) ? \strlen($fullChoice) : mb_strlen($fullChoice, $encoding);

$matches = array_filter(
                            $autocomplete($ret),
                            fn ($match) => '' === $ret || str_starts_with($match, $ret)
                        );
                        $numMatches = \count($matches);
                        $ofs = -1;
                    }

if ("\n" === $c) {
                        $output->write($c);
                        break;
                    }

$numMatches = 0;
                }

continue;
            } else {
                if ("\x80" <= $c) {
                    $c .= fread($inputStream, ["\xC0" => 1, "\xD0" => 1, "\xE0" => 2, "\xF0" => 3][$c & "\xF0"]);
                }

$output->write($c);
                $ret .= $c;
                $fullChoice .= $c;
                ++$i;

$tempRet = $ret;

if ($question instanceof ChoiceQuestion && $question->isMultiselect()) {
                    $tempRet = $this->mostRecentlyEnteredValue($fullChoice);
                }

$numMatches = 0;
                $ofs = 0;

foreach ($autocomplete($ret) as $value) {
                    // If typed characters match the beginning chunk of value (e.g. [AcmeDe]moBundle)
                    if (str_starts_with($value, $tempRet)) {
                        $matches[$numMatches++] = $value;
                    }
                }
            }

$cursor->clearLineAfter();

if ($numMatches > 0 && -1 !== $ofs) {
                $cursor->savePosition();
                // Write highlighted text, complete the partially entered response
                $charactersEntered = \strlen(trim($this->mostRecentlyEnteredValue($fullChoice)));
                $output->write('<hl>'.OutputFormatter::escapeTrailingBackslash(substr($matches[$ofs], $charactersEntered)).'</hl>');
                $cursor->restorePosition();
            }
        }

// Reset stty so it behaves normally again
        shell_exec('stty '.$sttyMode);

return $fullChoice;
    }

private function mostRecentlyEnteredValue(string $entered): string
    {
        // Determine the most recent value that the user entered
        if (!str_contains($entered, ',')) {
            return $entered;
        }

$choices = explode(',', $entered);
        if ('' !== $lastChoice = trim($choices[\count($choices) - 1])) {
            return $lastChoice;
        }

return $entered;
    }

/**
     * Gets a hidden response from user.
     *
     * @param resource $inputStream The handler resource
     * @param bool     $trimmable   Is the answer trimmable
     *
     * @throws RuntimeException In case the fallback is deactivated and the response cannot be hidden
     */
    private function getHiddenResponse(OutputInterface $output, $inputStream, bool $trimmable = true): string
    {
        if ('\\' === \DIRECTORY_SEPARATOR) {
            $exe = __DIR__.'/../Resources/bin/hiddeninput.exe';

// handle code running from a phar
            if (str_starts_with(__FILE__, 'phar:')) {
                $tmpExe = sys_get_temp_dir().'/hiddeninput.exe';
                copy($exe, $tmpExe);
                $exe = $tmpExe;
            }

$sExec = shell_exec('"'.$exe.'"');
            $value = $trimmable ? rtrim($sExec) : $sExec;
            $output->writeln('');

if (isset($tmpExe)) {
                unlink($tmpExe);
            }

return $value;
        }

if (self::$stty && Terminal::hasSttyAvailable()) {
            $sttyMode = shell_exec('stty -g');
            shell_exec('stty -echo');
        } elseif ($this->isInteractiveInput($inputStream)) {
            throw new RuntimeException('Unable to hide the response.');
        }

$value = fgets($inputStream, 4096);

if (4095 === \strlen($value)) {
            $errOutput = $output instanceof ConsoleOutputInterface ? $output->getErrorOutput() : $output;
            $errOutput->warning('The value was possibly truncated by your shell or terminal emulator');
        }

if (self::$stty && Terminal::hasSttyAvailable()) {
            shell_exec('stty '.$sttyMode);
        }

if (false === $value) {
            throw new MissingInputException('Aborted.');
        }
        if ($trimmable) {
            $value = trim($value);
        }
        $output->writeln('');

return $value;
    }

/**
     * Validates an attempt.
     *
     * @param callable $interviewer A callable that will ask for a question and return the result
     *
     * @throws \Exception In case the max number of attempts has been reached and no valid response has been given
     */
    private function validateAttempts(callable $interviewer, OutputInterface $output, Question $question): mixed
    {
        $error = null;
        $attempts = $question->getMaxAttempts();

while (null === $attempts || $attempts--) {
            if (null !== $error) {
                $this->writeError($output, $error);
            }

try {
                return $question->getValidator()($interviewer());
            } catch (RuntimeException $e) {
                throw $e;
            } catch (\Exception $error) {
            }
        }

throw $error;
    }

private function isInteractiveInput($inputStream): bool
    {
        if ('php://stdin' !== (stream_get_meta_data($inputStream)['uri'] ?? null)) {
            return false;
        }

if (isset(self::$stdinIsInteractive)) {
            return self::$stdinIsInteractive;
        }

if (\function_exists('stream_isatty')) {
            return self::$stdinIsInteractive = @stream_isatty(fopen('php://stdin', 'r'));
        }

if (\function_exists('posix_isatty')) {
            return self::$stdinIsInteractive = @posix_isatty(fopen('php://stdin', 'r'));
        }

if (!\function_exists('shell_exec')) {
            return self::$stdinIsInteractive = true;
        }

return self::$stdinIsInteractive = (bool) shell_exec('stty 2> '.('\\' === \DIRECTORY_SEPARATOR ? 'NUL' : '/dev/null'));
    }

/**
     * Reads one or more lines of input and returns what is read.
     *
     * @param resource $inputStream The handler resource
     * @param Question $question    The question being asked
     */
    private function readInput($inputStream, Question $question): string|false
    {
        if (!$question->isMultiline()) {
            $cp = $this->setIOCodepage();
            $ret = fgets($inputStream, 4096);

return $this->resetIOCodepage($cp, $ret);
        }

$multiLineStreamReader = $this->cloneInputStream($inputStream);
        if (null === $multiLineStreamReader) {
            return false;
        }

$ret = '';
        $cp = $this->setIOCodepage();
        while (false !== ($char = fgetc($multiLineStreamReader))) {
            if (\PHP_EOL === "{$ret}{$char}") {
                break;
            }
            $ret .= $char;
        }

return $this->resetIOCodepage($cp, $ret);
    }

private function setIOCodepage(): int
    {
        if (\function_exists('sapi_windows_cp_set')) {
            $cp = sapi_windows_cp_get();
            sapi_windows_cp_set(sapi_windows_cp_get('oem'));

return $cp;
        }

return 0;
    }

/**
     * Sets console I/O to the specified code page and converts the user input.
     */
    private function resetIOCodepage(int $cp, string|false $input): string|false
    {
        if (0 !== $cp) {
            sapi_windows_cp_set($cp);

if (false !== $input && '' !== $input) {
                $input = sapi_windows_cp_conv(sapi_windows_cp_get('oem'), $cp, $input);
            }
        }

return $input;
    }

/**
     * Clones an input stream in order to act on one instance of the same
     * stream without affecting the other instance.
     *
     * @param resource $inputStream The handler resource
     *
     * @return resource|null The cloned resource, null in case it could not be cloned
     */
    private function cloneInputStream($inputStream)
    {
        $streamMetaData = stream_get_meta_data($inputStream);
        $seekable = $streamMetaData['seekable'] ?? false;
        $mode = $streamMetaData['mode'] ?? 'rb';
        $uri = $streamMetaData['uri'] ?? null;

if (null === $uri) {
            return null;
        }

$cloneStream = fopen($uri, $mode);

// For seekable and writable streams, add all the same data to the
        // cloned stream and then seek to the same offset.
        if (true === $seekable && !\in_array($mode, ['r', 'rb', 'rt'])) {
            $offset = ftell($inputStream);
            rewind($inputStream);
            stream_copy_to_stream($inputStream, $cloneStream);
            fseek($inputStream, $offset);
            fseek($cloneStream, $offset);
        }

return $cloneStream;
    }
}