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[Console] Reset question validator attempts only for actual stdin (bis) #37286

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Jun 15, 2020
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[Console] Reset question validator attempts only for actual stdin (bis) #37286

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[Console] Reset question validator attempts only for actual stdin (bis)
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@nicolas-grekas
nicolas-grekas committed Jun 15, 2020
commit 867642e337284766d566fc2ef5750a7a62cda96b
14 changes: 8 additions & 6 deletions src/Symfony/Component/Console/Helper/QuestionHelper.php
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Original file line number Diff line number Diff line change
Expand Up @@ -104,7 +104,7 @@ private function doAsk(OutputInterface $output, Question $question)
{
$this->writePrompt($output, $question);

$inputStream = $this->inputStream ?: STDIN;
$inputStream = $this->inputStream ?: fopen('php://stdin', 'r');
$autocomplete = $question->getAutocompleterCallback();

if (null === $autocomplete || !self::$stty || !Terminal::hasSttyAvailable()) {
Expand Down Expand Up @@ -474,7 +474,7 @@ private function validateAttempts(callable $interviewer, OutputInterface $output
} catch (\Exception $error) {
}

$attempts = $attempts ?? -(int) $this->isTty();
$attempts = $attempts ?? -(int) $this->askForever();
}

throw $error;
Expand Down Expand Up @@ -507,18 +507,20 @@ private function getShell()
return self::$shell;
}

private function isTty(): bool
private function askForever(): bool
{
if (!\defined('STDIN')) {
$inputStream = $this->inputStream ?: fopen('php://stdin', 'r');

if ('php://stdin' !== (stream_get_meta_data($inputStream)['url'] ?? null)) {
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@nicolas-grekas nicolas-grekas Jun 15, 2020 •
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actually this is not needed to fix the failure, but making the behavior of this method global looks suspicious to me so here is a local check

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note that this check works even if $inputStream === STDIN

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Are you sure with url here?

>>> stream_get_meta_data(STDIN)['url']
PHP Notice:  Undefined index: url in phar://eval()'d code on line 1
=> null
>>> stream_get_meta_data(STDIN)
=> [
     "timed_out" => false,
     "blocked" => true,
     "eof" => false,
     "wrapper_type" => "PHP",
     "stream_type" => "STDIO",
     "mode" => "rb",
     "unread_bytes" => 0,
     "seekable" => false,
     "uri" => "php://stdin",
   ]

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Pretty much yes: https://3v4l.org/njZZV
What's your runtime?

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That 3v4l snippet follows behaviour I observe on my PC, it looks to be uri, not url

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🤦

return true;
}

if (\function_exists('stream_isatty')) {
return stream_isatty(fopen('php://input', 'r'));
return stream_isatty($inputStream);
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@nicolas-grekas nicolas-grekas Jun 15, 2020 •
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this was my mistake: using php://stdin here instead is enough to fix the failure

}

if (\function_exists('posix_isatty')) {
return posix_isatty(fopen('php://input', 'r'));
return posix_isatty($inputStream);
}

return true;
Expand Down