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* * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Console\Input; use Symfony\Component\Console\Exception\RuntimeException; /** * ArgvInput represents an input coming from the CLI arguments. * * Usage: * * $input = new ArgvInput(); * * By default, the `$_SERVER['argv']` array is used for the input values. * * This can be overridden by explicitly passing the input values in the constructor: * * $input = new ArgvInput($_SERVER['argv']); * * If you pass it yourself, don't forget that the first element of the array * is the name of the running application. * * When passing an argument to the constructor, be sure that it respects * the same rules as the argv one. It's almost always better to use the * `StringInput` when you want to provide your own input. * * @author Fabien Potencier
* * @see http://www.gnu.org/software/libc/manual/html_node/Argument-Syntax.html * @see http://www.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap12.html#tag_12_02 */ class ArgvInput extends Input { private $tokens; private $parsed; public function __construct(array $argv = null, InputDefinition $definition = null) { $argv = $argv ?? $_SERVER['argv'] ?? []; // strip the application name array_shift($argv); $this->tokens = $argv; parent::__construct($definition); } protected function setTokens(array $tokens) { $this->tokens = $tokens; } /** * {@inheritdoc} */ protected function parse() { $parseOptions = true; $this->parsed = $this->tokens; while (null !== $token = array_shift($this->parsed)) { if ($parseOptions && '' == $token) { $this->parseArgument($token); } elseif ($parseOptions && '--' == $token) { $parseOptions = false; } elseif ($parseOptions && str_starts_with($token, '--')) { $this->parseLongOption($token); } elseif ($parseOptions && '-' === $token[0] && '-' !== $token) { $this->parseShortOption($token); } else { $this->parseArgument($token); } } } /** * Parses a short option. */ private function parseShortOption(string $token) { $name = substr($token, 1); if (\strlen($name) > 1) { if ($this->definition->hasShortcut($name[0]) && $this->definition->getOptionForShortcut($name[0])->acceptValue()) { // an option with a value (with no space) $this->addShortOption($name[0], substr($name, 1)); } else { $this->parseShortOptionSet($name); } } else { $this->addShortOption($name, null); } } /** * Parses a short option set. * * @throws RuntimeException When option given doesn't exist */ private function parseShortOptionSet(string $name) { $len = \strlen($name); for ($i = 0; $i < $len; ++$i) { if (!$this->definition->hasShortcut($name[$i])) { $encoding = mb_detect_encoding($name, null, true); throw new RuntimeException(sprintf('The "-%s" option does not exist.', false === $encoding ? $name[$i] : mb_substr($name, $i, 1, $encoding))); } $option = $this->definition->getOptionForShortcut($name[$i]); if ($option->acceptValue()) { $this->addLongOption($option->getName(), $i === $len - 1 ? null : substr($name, $i + 1)); break; } else { $this->addLongOption($option->getName(), null); } } } /** * Parses a long option. */ private function parseLongOption(string $token) { $name = substr($token, 2); if (false !== $pos = strpos($name, '=')) { if (0 === \strlen($value = substr($name, $pos + 1))) { array_unshift($this->parsed, $value); } $this->addLongOption(substr($name, 0, $pos), $value); } else { $this->addLongOption($name, null); } } /** * Parses an argument. * * @throws RuntimeException When too many arguments are given */ private function parseArgument(string $token) { $c = \count($this->arguments); // if input is expecting another argument, add it if ($this->definition->hasArgument($c)) { $arg = $this->definition->getArgument($c); $this->arguments[$arg->getName()] = $arg->isArray() ? [$token] : $token; // if last argument isArray(), append token to last argument } elseif ($this->definition->hasArgument($c - 1) && $this->definition->getArgument($c - 1)->isArray()) { $arg = $this->definition->getArgument($c - 1); $this->arguments[$arg->getName()][] = $token; // unexpected argument } else { $all = $this->definition->getArguments(); $symfonyCommandName = null; if (($inputArgument = $all[$key = array_key_first($all)] ?? null) && 'command' === $inputArgument->getName()) { $symfonyCommandName = $this->arguments['command'] ?? null; unset($all[$key]); } if (\count($all)) { if ($symfonyCommandName) { $message = sprintf('Too many arguments to "%s" command, expected arguments "%s".', $symfonyCommandName, implode('" "', array_keys($all))); } else { $message = sprintf('Too many arguments, expected arguments "%s".', implode('" "', array_keys($all))); } } elseif ($symfonyCommandName) { $message = sprintf('No arguments expected for "%s" command, got "%s".', $symfonyCommandName, $token); } else { $message = sprintf('No arguments expected, got "%s".', $token); } throw new RuntimeException($message); } } /** * Adds a short option value. * * @throws RuntimeException When option given doesn't exist */ private function addShortOption(string $shortcut, $value) { if (!$this->definition->hasShortcut($shortcut)) { throw new RuntimeException(sprintf('The "-%s" option does not exist.', $shortcut)); } $this->addLongOption($this->definition->getOptionForShortcut($shortcut)->getName(), $value); } /** * Adds a long option value. * * @throws RuntimeException When option given doesn't exist */ private function addLongOption(string $name, $value) { if (!$this->definition->hasOption($name)) { if (!$this->definition->hasNegation($name)) { throw new RuntimeException(sprintf('The "--%s" option does not exist.', $name)); } $optionName = $this->definition->negationToName($name); if (null !== $value) { throw new RuntimeException(sprintf('The "--%s" option does not accept a value.', $name)); } $this->options[$optionName] = false; return; } $option = $this->definition->getOption($name); if (null !== $value && !$option->acceptValue()) { throw new RuntimeException(sprintf('The "--%s" option does not accept a value.', $name)); } if (\in_array($value, ['', null], true) && $option->acceptValue() && \count($this->parsed)) { // if option accepts an optional or mandatory argument // let's see if there is one provided $next = array_shift($this->parsed); if ((isset($next[0]) && '-' !== $next[0]) || \in_array($next, ['', null], true)) { $value = $next; } else { array_unshift($this->parsed, $next); } } if (null === $value) { if ($option->isValueRequired()) { throw new RuntimeException(sprintf('The "--%s" option requires a value.', $name)); } if (!$option->isArray() && !$option->isValueOptional()) { $value = true; } } if ($option->isArray()) { $this->options[$name][] = $value; } else { $this->options[$name] = $value; } } /** * {@inheritdoc} */ public function getFirstArgument() { $isOption = false; foreach ($this->tokens as $i => $token) { if ($token && '-' === $token[0]) { if (str_contains($token, '=') || !isset($this->tokens[$i + 1])) { continue; } // If it's a long option, consider that everything after "--" is the option name. // Otherwise, use the last char (if it's a short option set, only the last one can take a value with space separator) $name = '-' === $token[1] ? substr($token, 2) : substr($token, -1); if (!isset($this->options[$name]) && !$this->definition->hasShortcut($name)) { // noop } elseif ((isset($this->options[$name]) || isset($this->options[$name = $this->definition->shortcutToName($name)])) && $this->tokens[$i + 1] === $this->options[$name]) { $isOption = true; } continue; } if ($isOption) { $isOption = false; continue; } return $token; } return null; } /** * {@inheritdoc} */ public function hasParameterOption($values, bool $onlyParams = false) { $values = (array) $values; foreach ($this->tokens as $token) { if ($onlyParams && '--' === $token) { return false; } foreach ($values as $value) { // Options with values: // For long options, test for '--option=' at beginning // For short options, test for '-o' at beginning $leading = str_starts_with($value, '--') ? $value.'=' : $value; if ($token === $value || '' !== $leading && str_starts_with($token, $leading)) { return true; } } } return false; } /** * {@inheritdoc} */ public function getParameterOption($values, $default = false, bool $onlyParams = false) { $values = (array) $values; $tokens = $this->tokens; while (0 < \count($tokens)) { $token = array_shift($tokens); if ($onlyParams && '--' === $token) { return $default; } foreach ($values as $value) { if ($token === $value) { return array_shift($tokens); } // Options with values: // For long options, test for '--option=' at beginning // For short options, test for '-o' at beginning $leading = str_starts_with($value, '--') ? $value.'=' : $value; if ('' !== $leading && str_starts_with($token, $leading)) { return substr($token, \strlen($leading)); } } } return $default; } /** * Returns a stringified representation of the args passed to the command. * * @return string */ public function __toString() { $tokens = array_map(function ($token) { if (preg_match('{^(-[^=]+=)(.+)}', $token, $match)) { return $match[1].$this->escapeToken($match[2]); } if ($token && '-' !== $token[0]) { return $this->escapeToken($token); } return $token; }, $this->tokens); return implode(' ', $tokens); } }