--- /dev/null
+<?php
+
+/*
+ * This file is part of Psy Shell.
+ *
+ * (c) 2012-2017 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Psy\Command;
+
+use PhpParser\NodeTraverser;
+use PhpParser\PrettyPrinter\Standard as Printer;
+use Psy\Input\CodeArgument;
+use Psy\ParserFactory;
+use Psy\Readline\Readline;
+use Psy\Sudo\SudoVisitor;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ * Evaluate PHP code, bypassing visibility restrictions.
+ */
+class SudoCommand extends Command
+{
+ private $readline;
+ private $parser;
+ private $traverser;
+ private $printer;
+
+ /**
+ * {@inheritdoc}
+ */
+ public function __construct($name = null)
+ {
+ $parserFactory = new ParserFactory();
+ $this->parser = $parserFactory->createParser();
+
+ $this->traverser = new NodeTraverser();
+ $this->traverser->addVisitor(new SudoVisitor());
+
+ $this->printer = new Printer();
+
+ parent::__construct($name);
+ }
+
+ /**
+ * Set the Shell's Readline service.
+ *
+ * @param Readline $readline
+ */
+ public function setReadline(Readline $readline)
+ {
+ $this->readline = $readline;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function configure()
+ {
+ $this
+ ->setName('sudo')
+ ->setDefinition(array(
+ new CodeArgument('code', InputArgument::REQUIRED, 'Code to execute.'),
+ ))
+ ->setDescription('Evaluate PHP code, bypassing visibility restrictions.')
+ ->setHelp(
+ <<<'HELP'
+Evaluate PHP code, bypassing visibility restrictions.
+
+e.g.
+<return>>>> $sekret->whisper("hi")</return>
+<return>PHP error: Call to private method Sekret::whisper() from context '' on line 1</return>
+
+<return>>>> sudo $sekret->whisper("hi")</return>
+<return>=> "hi"</return>
+
+<return>>>> $sekret->word</return>
+<return>PHP error: Cannot access private property Sekret::$word on line 1</return>
+
+<return>>>> sudo $sekret->word</return>
+<return>=> "hi"</return>
+
+<return>>>> $sekret->word = "please"</return>
+<return>PHP error: Cannot access private property Sekret::$word on line 1</return>
+
+<return>>>> sudo $sekret->word = "please"</return>
+<return>=> "please"</return>
+HELP
+ );
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function execute(InputInterface $input, OutputInterface $output)
+ {
+ $code = $input->getArgument('code');
+
+ // special case for !!
+ if ($code === '!!') {
+ $history = $this->readline->listHistory();
+ if (count($history) < 2) {
+ throw new \InvalidArgumentException('No previous command to replay');
+ }
+ $code = $history[count($history) - 2];
+ }
+
+ if (strpos('<?', $code) === false) {
+ $code = '<?php ' . $code;
+ }
+
+ $nodes = $this->traverser->traverse($this->parse($code));
+
+ $sudoCode = $this->printer->prettyPrint($nodes);
+ $this->getApplication()->addInput($sudoCode, true);
+ }
+
+ /**
+ * Lex and parse a string of code into statements.
+ *
+ * @param string $code
+ *
+ * @return array Statements
+ */
+ private function parse($code)
+ {
+ try {
+ return $this->parser->parse($code);
+ } catch (\PhpParser\Error $e) {
+ if (strpos($e->getMessage(), 'unexpected EOF') === false) {
+ throw $e;
+ }
+
+ // If we got an unexpected EOF, let's try it again with a semicolon.
+ return $this->parser->parse($code . ';');
+ }
+ }
+}