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<?php |
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/* |
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* This file is part of the PHP-CLI package. |
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* |
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* (c) Jitendra Adhikari <[email protected]> |
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* <https://github.com/adhocore> |
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* |
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* Licensed under MIT license. |
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*/ |
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namespace Ahc\Cli\Input; |
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/** |
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* Cli Reader. |
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* |
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* @author Jitendra Adhikari <[email protected]> |
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* @license MIT |
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* |
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* @link https://github.com/adhocore/cli |
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*/ |
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class Reader |
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{ |
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/** @var resource Input file handle */ |
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protected $stream; |
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/** |
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* Constructor. |
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* |
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* @param string|null $path Read path. Defaults to STDIN. |
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*/ |
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public function __construct(string $path = null) |
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{ |
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$this->stream = $path ? \fopen($path, 'r') : \STDIN; |
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} |
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/** |
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* Read a line from configured stream (or terminal). |
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* |
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* @param mixed $default The default value. |
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* @param callable|null $fn The validator/sanitizer callback. |
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* |
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* @return mixed |
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*/ |
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public function read($default = null, callable $fn = null) |
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{ |
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$in = \rtrim(\fgets($this->stream), "\r\n"); |
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if ('' === $in && null !== $default) { |
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return $default; |
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} |
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return $fn ? $fn($in) : $in; |
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} |
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/** |
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* Same like read but it reads all the lines. |
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* |
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* @codeCoverageIgnore |
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* |
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* @param callable|null $fn The validator/sanitizer callback. |
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* |
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* @return string |
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*/ |
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public function readAll(callable $fn = null): string |
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{ |
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$in = \stream_get_contents($this->stream); |
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return $fn ? $fn($in) : $in; |
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} |
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/** |
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* Read content piped to the stream without waiting. |
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* |
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* @codeCoverageIgnore |
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* |
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* @param callable|null $fn The callback to execute if stream is empty. |
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* |
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* @return string |
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*/ |
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public function readPiped(callable $fn = null): string |
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{ |
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$stdin = ''; |
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$read = [$this->stream]; |
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$write = []; |
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$exept = []; |
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if (\stream_select($read, $write, $exept, 0) === 1) { |
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while ($line = \fgets($this->stream)) { |
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$stdin .= $line; |
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} |
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} |
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if ('' === $stdin) { |
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return $fn ? $fn($this) : ''; |
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} |
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return $stdin; |
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} |
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/** |
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* Read a line from configured stream (or terminal) but don't echo it back. |
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* |
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* @param callable|null $fn The validator/sanitizer callback. |
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* |
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* @return mixed |
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*/ |
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public function readHidden($default = null, callable $fn = null) |
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{ |
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// @codeCoverageIgnoreStart |
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if ('\\' === \DIRECTORY_SEPARATOR) { |
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return $this->readHiddenWinOS($default, $fn); |
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} |
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// @codeCoverageIgnoreEnd |
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\shell_exec('stty -echo'); |
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$in = $this->read($default, $fn); |
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\shell_exec('stty echo'); |
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echo \PHP_EOL; |
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return $in; |
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} |
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/** |
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* Read a line from configured stream (or terminal) but don't echo it back. |
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* |
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* @codeCoverageIgnore |
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* |
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* @param callable|null $fn The validator/sanitizer callback. |
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* |
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* @return mixed |
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*/ |
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protected function readHiddenWinOS($default = null, callable $fn = null) |
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{ |
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$cmd = 'powershell -Command ' . \implode('; ', \array_filter([ |
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'$pword = Read-Host -AsSecureString', |
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'$pword = [System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($pword)', |
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'$pword = [System.Runtime.InteropServices.Marshal]::PtrToStringAuto($pword)', |
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'echo $pword', |
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])); |
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$in = \rtrim(\shell_exec($cmd), "\r\n"); |
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if ('' === $in && null !== $default) { |
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return $default; |
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} |
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return $fn ? $fn($in) : $in; |
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} |
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} |
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Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a mixed type is assigned to a property that is type hinted more strictly.
For example, imagine you have a variable
$accountId
that can either hold an Id object or false (if there is no account id yet). Your code now assigns that value to theid
property of an instance of theAccount
class. This class holds a proper account, so the id value must no longer be false.Either this assignment is in error or a type check should be added for that assignment.