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Directory >> /var/www/html/back/vendor/symfony/console/Helper/

File / Folder	Size	Action
.	-
DebugFormatterHelper.php	3.25KB	edt ren
DescriptorHelper.php	2.556KB	edt ren
Dumper.php	1.635KB	edt ren
FormatterHelper.php	2.186KB	edt ren
Helper.php	4.569KB	edt ren
HelperInterface.php	0.78KB	edt ren
HelperSet.php	1.794KB	edt ren
InputAwareHelper.php	0.714KB	edt ren
OutputWrapper.php	2.94KB	edt ren
ProcessHelper.php	4.716KB	edt ren
ProgressBar.php	20.356KB	edt ren
ProgressIndicator.php	7.484KB	edt ren
QuestionHelper.php	20.186KB	edt ren
SymfonyQuestionHelper.php	3.204KB	edt ren
Table.php	33.771KB	edt ren
TableCell.php	1.688KB	edt ren
TableCellStyle.php	2.169KB	edt ren
TableRows.php	0.523KB	edt ren
TableSeparator.php	0.519KB	edt ren
TableStyle.php	12.778KB	edt ren
TerminalInputHelper.php	4.363KB	edt ren
TreeHelper.php	2.842KB	edt ren
TreeNode.php	2.312KB	edt ren
TreeStyle.php	2.26KB	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
{
    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);
        }

$inputStream = $input instanceof StreamableInputInterface ? $input->getStream() : null;
        $inputStream ??= \STDIN;

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

$interviewer = fn () => $this->doAsk($inputStream, $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.
     */
    public static function disableStty(): void
    {
        self::$stty = false;
    }

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

$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.
     */
    protected function writePrompt(OutputInterface $output, Question $question): void
    {
        $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.
     */
    protected function writeError(OutputInterface $output, \Exception $error): void
    {
        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
     * @param callable(string):string[] $autocomplete
     */
    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);
        $inputHelper = new TerminalInputHelper($inputStream);

// 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)) {
            $inputHelper->waitForInput();
            $c = fread($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())) {
                // Restore the terminal so it behaves normally again
                $inputHelper->finish();
                throw new MissingInputException('Aborted while asking: '.$question->getQuestion());
            } 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 ('' === $c || \ord($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($this->mostRecentlyEnteredValue($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
                $charactersEntered = \strlen($this->mostRecentlyEnteredValue($fullChoice));
                $output->write('<hl>'.OutputFormatter::escapeTrailingBackslash(substr($matches[$ofs], $charactersEntered)).'</hl>');
                $cursor->restorePosition();
            }
        }

// Restore the terminal so it behaves normally again
        $inputHelper->finish();

return $fullChoice;
    }

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

if (false === $lastCommaPos = strrpos($entered, ',')) {
            return $entered;
        }

$lastChoice = trim(substr($entered, $lastCommaPos + 1));

return '' !== $lastChoice ? $lastChoice : $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;
        }

$inputHelper = null;

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

$value = $this->doReadInput($inputStream, helper: $inputHelper);

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

// Restore the terminal so it behaves normally again
        $inputHelper?->finish();

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;
        }

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

/**
     * 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 (null !== $question->getTimeout() && $this->isInteractiveInput($inputStream)) {
            $read = [$inputStream];
            $write = null;
            $except = null;
            $timeoutSeconds = $question->getTimeout();
            $changedStreams = stream_select($read, $write, $except, $timeoutSeconds);

if (0 === $changedStreams) {
                throw new MissingInputException(\sprintf('Timed out after waiting for input for %d second%s.', $timeoutSeconds, 1 === $timeoutSeconds ? '' : 's'));
            }
        }

if (!$question->isMultiline()) {
            $cp = $this->setIOCodepage();
            $ret = $this->doReadInput($inputStream);

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

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

$cp = $this->setIOCodepage();
        $ret = $this->doReadInput($multiLineStreamReader, "\x4");

if (stream_get_meta_data($inputStream)['seekable']) {
            fseek($inputStream, ftell($multiLineStreamReader));
        }

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'], true)) {
            $offset = ftell($inputStream);
            rewind($inputStream);
            stream_copy_to_stream($inputStream, $cloneStream);
            fseek($inputStream, $offset);
            fseek($cloneStream, $offset);
        }

return $cloneStream;
    }

/**
     * @param resource $inputStream
     */
    private function doReadInput($inputStream, ?string $exitChar = null, ?TerminalInputHelper $helper = null): string
    {
        $ret = '';
        $helper ??= new TerminalInputHelper($inputStream, false);

while (!feof($inputStream)) {
            $helper->waitForInput();
            $char = fread($inputStream, 1);

// as opposed to fgets(), fread() returns an empty string when the stream content is empty, not false.
            if (false === $char || ('' === $ret && '' === $char)) {
                throw new MissingInputException('Aborted.');
            }

if (\PHP_EOL === "{$ret}{$char}" || $exitChar === $char) {
                break;
            }

$ret .= $char;

if (null === $exitChar && "\n" === $char) {
                break;
            }
        }

return $ret;
    }
}

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