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Command.php
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Command.php
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<?php
namespace Concrete\Core\Console;
use Concrete\Core\Error\UserMessageException;
use Concrete\Core\Foundation\Environment\User;
use Concrete\Core\Support\Facade\Application as ApplicationFacade;
use Exception;
use LogicException;
use Symfony\Component\Console\Command\Command as SymfonyCommand;
use Symfony\Component\Console\Input\ArrayInput;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Question\ConfirmationQuestion;
use Throwable;
/**
* base command class
* Large swaths of this class have been copied from illuminate/config 5.2 and 5.5
* so you may refer to their documentation for some things.
*/
abstract class Command extends SymfonyCommand
{
/**
* @deprecated Use SUCCESS
*
* @var int
*/
public const RETURN_CODE_ON_SUCCESS = self::SUCCESS;
/**
* @deprecated Use FAILURE
*
* @var int
*/
public const RETURN_CODE_ON_FAILURE = self::FAILURE;
/**
* Concrete requires symfony/console ^5.2, and the INVALID constant has been introduced in symfony/console 5.3.0
*
* @var int
*/
public const INVALID = 2;
/**
* The name of the CLI option that allows running CLI commands as root without confirmation.
*
* @var string
*/
public const ALLOWASROOT_OPTION = 'allow-as-root';
/**
* The name of the environment variable that allows running CLI commands as root without confirmation.
*
* @var string
*/
public const ALLOWASROOT_ENV = 'C5_CLI_ALLOW_AS_ROOT';
/**
* @var InputInterface
*/
protected $input;
/**
* @var \Concrete\Core\Console\OutputStyle
*/
protected $output;
/**
* @var string
*/
protected $name = '';
/**
* @var string
*/
protected $description = '';
/**
* @var bool
*/
protected $hidden = false;
/**
* The command signature.
*
* @see https://laravel.com/docs/5.5/artisan#defining-input-expectations
* ex: `config:set {item} {value} {--quiet}`
*
* Argument: `{item}`
* Argument array: `{item*}`
* Optional argument: `{item?}`
* Optional with default: `{item=foo}`
* Argument with description: `{item : The config "item" to set}`
*
* Option: `{--quiet}`
* Option with value: `{--ignore=}`
* Option array: `{--ignore=*}`
* Option with default: `{--ignore=default}`
* Short option: `{--Q|quiet}`
* Option with description: `{--ignore=default : The item to ignore}`
*
* @var string
*/
protected $signature;
/**
* Can this command be executed as root?
* If set to false, the command can be executed if one of these conditions is satisfied:
* - the users is not root
* - the --allow-as-root option is set
* - the C5_CLI_ALLOW_AS_ROOT environment variable is set
* - the console is interactive and the user explicitly confirm the operation.
*
* @var bool
*/
protected $canRunAsRoot = true;
public function __construct($name = null)
{
if ($this->signature) {
$this->configureUsingFluentDefinition();
} else {
parent::__construct($this->name ?: $name);
}
// Once we have constructed the command, we'll set the description and other
// related properties of the command. If a signature wasn't used to build
// the command we'll set the arguments and the options on this command.
if ((string) $this->description !== '') {
$this->setDescription($this->description);
}
$this->setHidden($this->hidden);
if (!isset($this->signature)) {
$this->specifyParameters();
}
}
/**
* {@inheritdoc}
*/
public function run(InputInterface $input, OutputInterface $output)
{
// Store the input and output
$this->input = $input;
$this->output = new OutputStyle($input, $output);
// Run the command
return parent::run($this->input, $this->output);
}
/**
* Call another console command.
*
* @param string $command
* @param array $arguments
*
* @return int
*/
public function call($command, array $arguments = [])
{
$arguments['command'] = $command;
return $this->getApplication()->find($command)->run(
new ArrayInput($arguments),
$this->output
);
}
/**
* Call another console command silently.
*
* @param string $command
* @param array $arguments
*
* @return int
*/
public function callSilent($command, array $arguments = [])
{
$arguments['command'] = $command;
return $this->getApplication()->find($command)->run(
new ArrayInput($arguments),
new NullOutput()
);
}
/**
* Determine if the given argument is present.
*
* @param string|int $name
*
* @return bool
*/
public function hasArgument($name)
{
return $this->input->hasArgument($name);
}
/**
* Get the value of a command argument.
*
* @param string|null $key
*
* @return string|array
*/
public function argument($key = null)
{
if ($key === null) {
return $this->input->getArguments();
}
return $this->input->getArgument($key);
}
/**
* Get all of the arguments passed to the command.
*
* @return array
*/
public function arguments()
{
return $this->argument();
}
/**
* Determine if the given option is present.
*
* @param string $name
*
* @return bool
*/
public function hasOption($name)
{
return $this->input->hasOption($name);
}
/**
* Get the value of a command option.
*
* @param string $key
*
* @return string|array
*/
public function option($key = null)
{
if ($key === null) {
return $this->input->getOptions();
}
return $this->input->getOption($key);
}
/**
* Get all of the options passed to the command.
*
* @return array
*/
public function options()
{
return $this->option();
}
/**
* Confirm a question with the user.
*
* @param string $question
* @param bool $default
*
* @return bool
*/
public function confirm($question, $default = false)
{
return $this->output->confirm($question, $default);
}
/**
* Prompt the user for input.
*
* @param string $question
* @param string $default
*
* @return string
*/
public function ask($question, $default = null)
{
return $this->output->ask($question, $default);
}
/**
* Prompt the user for input with auto completion.
*
* @param string $question
* @param array $choices
* @param string $default
* @param null $attempts
* @param null $strict
*
* @return string
*/
public function askWithCompletion($question, array $choices, $default = null, $attempts = null, $strict = null)
{
return $this->output->askWithCompletion($question, $choices, $default, $attempts, $strict);
}
/**
* Prompt the user for input but hide the answer from the console.
*
* @param string $question
* @param bool $fallback
*
* @return string
*/
public function secret($question, $fallback = true)
{
return $this->output->secret($question, $fallback);
}
/**
* Give the user a single choice from an array of answers.
*
* @param string $question
* @param array $choices
* @param string $default
* @param mixed $attempts
* @param bool $multiple
*
* @return string
*/
public function choice($question, array $choices, $default = null, $attempts = null, $multiple = null)
{
return $this->output->choice($question, $choices, $default, $attempts, $multiple);
}
/**
* Format input to textual table.
*
* @param array $headers
* @param \Illuminate\Contracts\Support\Arrayable|array $rows
* @param string $tableStyle
* @param array $columnStyles
*
* @return void
*/
public function table(array $headers, array $rows, $tableStyle = 'default', array $columnStyles = [])
{
$this->output->table($headers, $rows, $tableStyle, $columnStyles);
}
/**
* {@inheritdoc}
*
* @return \Symfony\Component\Console\Application|\Concrete\Core\Console\Application
*/
public function getApplication()
{
return parent::getApplication();
}
/**
* Configure the console command using a fluent definition.
*
* @return void
*/
protected function configureUsingFluentDefinition()
{
list($name, $arguments, $options) = Parser::parse($this->signature);
parent::__construct($this->name = $name);
// After parsing the signature we will spin through the arguments and options
// and set them on this command. These will already be changed into proper
// instances of these "InputArgument" and "InputOption" Symfony classes.
foreach ($arguments as $argument) {
$this->getDefinition()->addArgument($argument);
}
foreach ($options as $option) {
$this->getDefinition()->addOption($option);
}
}
/**
* Specify the arguments and options on the command.
*
* @return void
*/
protected function specifyParameters()
{
// We will loop through all of the arguments and options for the command and
// set them all on the base command instance. This specifies what can get
// passed into these commands as "parameters" to control the execution.
foreach ($this->getArguments() as $arguments) {
call_user_func_array([$this, 'addArgument'], $arguments);
}
foreach ($this->getOptions() as $options) {
call_user_func_array([$this, 'addOption'], $options);
}
}
/**
* Get the arguments for this command.
*
* If $this->signature is specified, this method has no effect.
*
* @return array [[$name, $mode = null, $description = '', $default = null], ...]
*/
protected function getArguments()
{
return [];
}
/**
* Get the options for this command.
*
* If $this->signature is specified, this method has no effect.
*
* @return array [[$name, $shortcut = null, $mode = null, $description = '', $default = null], ...]
*/
protected function getOptions()
{
return [];
}
/**
* {@inheritdoc}
*
* @see \Symfony\Component\Console\Command\Command::initialize()
*/
protected function initialize(InputInterface $input, OutputInterface $output)
{
if (!$this->canRunAsRoot && $this->isRunningAsRoot() === true) {
$this->confirmRunningAsRoot($input, $output);
}
}
/**
* Write an exception.
*
* @param OutputInterface $output
* @param Exception|Throwable $error
*
* @deprecated Use $this->output to manage your output
* @see OutputStyle::error()
*/
protected function writeError(OutputInterface $output, $error)
{
$result = [trim($error->getMessage())];
// If the output is verbose, add file and location
if ($output->isVerbose()) {
$file = $error->getFile();
if ($file) {
$result[] = "File: {$file}" . ($error->getLine() ? ':' . $error->getLine() : '');
}
}
// If the output is very verbose, add stacktrace
if ($output->isVeryVerbose()) {
$trace = $error->getTraceAsString();
$result[] = 'Trace:';
$result[] = $trace;
}
$this->output->error($result);
}
/**
* Add the "env" option to the command options.
*
* @return Command
*/
protected function addEnvOption()
{
$this->addOption(
'env',
null,
InputOption::VALUE_REQUIRED,
'The environment (if not specified, we\'ll work with the configuration item valid for all environments)'
);
return $this;
}
/**
* Allow/disallow running this command as root without confirmation.
*
* @param bool $canRunAsRoot if false the command can be executed if one of these conditions is satisfied:
* - the users is not root
* - the --allow-as-root option is set
* - the C5_CLI_ALLOW_AS_ROOT environment variable is set
* - the console is interactive and the user explicitly confirm the operation
*
* @return $this
*/
protected function setCanRunAsRoot($canRunAsRoot)
{
$canRunAsRoot = (bool) $canRunAsRoot;
if ($canRunAsRoot !== $this->canRunAsRoot) {
if ($canRunAsRoot) {
// Remove the --allow-as-root option
$newOptions = [];
foreach ($this->getDefinition()->getOptions() as $option) {
if ($option->getName() !== static::ALLOWASROOT_OPTION) {
$newOptions[] = $option;
}
}
$this->getDefinition()->setOptions($newOptions);
} else {
$this->addOption(static::ALLOWASROOT_OPTION, null, InputOption::VALUE_NONE, 'Allow executing this command as root without confirmation (you can also set the ' . static::ALLOWASROOT_ENV . ' environment variable)');
}
$this->canRunAsRoot = $canRunAsRoot;
}
return $this;
}
/**
* Is the current user root?
*
* @return bool|null NULL if unknown, or boolean if determined
*/
protected function isRunningAsRoot()
{
$app = ApplicationFacade::getFacadeApplication();
return $app->make(User::class)->isSuperUser();
}
/**
* @param InputInterface $input
* @param OutputInterface $output
*
* @throws UserMessageException
*/
protected function confirmRunningAsRoot(InputInterface $input, OutputInterface $output)
{
if (!($input->hasOption(static::ALLOWASROOT_OPTION) && $input->getOption(static::ALLOWASROOT_OPTION)) && !@getenv(static::ALLOWASROOT_ENV)) {
if (!$input->isInteractive()) {
throw new UserMessageException("The current user is root: this is discouraged for this CLI command.\nYou can execute this command anyway by specifying the --" . static::ALLOWASROOT_OPTION . ' option or setting the ' . static::ALLOWASROOT_ENV . ' environment variable.');
}
$questionHelper = $this->getHelper('question');
$question = new ConfirmationQuestion(
"The current user is root: this is discouraged for this CLI command.\nDo you want to proceed anyway [Y/N]? ",
false
);
if (!$questionHelper->ask($input, $output, $question)) {
throw new UserMessageException('Operation aborted.');
}
}
}
/**
* This method is overridden to pipe execution to the handle method hiding input and output.
*
* @param \Symfony\Component\Console\Input\InputInterface $input
* @param \Symfony\Component\Console\Output\OutputInterface $output
*
* @return int
*
* @see \Symfony\Component\Console\Command\Command::execute()
*/
protected function execute(InputInterface $input, OutputInterface $output)
{
if (!method_exists($this, 'handle')) {
throw new LogicException('You must define the public handle() method in the command implementation.');
}
$result = $this->getApplication()->getConcrete()->call([$this, 'handle']);
switch (gettype($result)) {
case 'integer':
return $result;
case 'boolean':
return $result ? static::SUCCESS : static::FAILURE;
case 'double':
return (int) $result;
case 'string':
return is_numeric($result) ? (int) $result : static::SUCCESS;
default:
return static::SUCCESS;
}
}
}