594 lines
19 KiB
PHP
594 lines
19 KiB
PHP
<?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
|
|
*/
|
|
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::$stdinIsInteractive;
|
|
}
|
|
|
|
return self::$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 $question): string|false
|
|
{
|
|
if (!$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 ("\x4" === $char || \PHP_EOL === "{$ret}{$char}") {
|
|
break;
|
|
}
|
|
$ret .= $char;
|
|
}
|
|
|
|
if (stream_get_meta_data($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'])) {
|
|
$offset = ftell($inputStream);
|
|
rewind($inputStream);
|
|
stream_copy_to_stream($inputStream, $cloneStream);
|
|
fseek($inputStream, $offset);
|
|
fseek($cloneStream, $offset);
|
|
}
|
|
|
|
return $cloneStream;
|
|
}
|
|
}
|