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<?php |
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namespace Rvdv\Nntp\Command; |
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use Rvdv\Nntp\Response\MultiLineResponse; |
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use Rvdv\Nntp\Exception\RuntimeException; |
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use Rvdv\Nntp\Response\Response; |
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class ListCommand extends Command |
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{ |
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const KEYWORD_ACTIVE = 'ACTIVE'; |
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const KEYWORD_ACTIVE_TIMES = 'ACTIVE.TIMES'; |
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const KEYWORD_DISTRIB_PATS = 'DISTRIB.PATS'; |
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const KEYWORD_HEADERS = 'HEADERS'; |
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const KEYWORD_NEWSGROUPS = 'NEWSGROUPS'; |
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const KEYWORD_OVERVIEW_FMT = 'OVERVIEW.FMT'; |
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/** |
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* @var string |
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*/ |
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protected $keyword; |
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/** |
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* @var string |
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*/ |
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protected $arguments; |
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/** |
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* @param string $keyword |
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* @param string $arguments |
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*/ |
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public function __construct($keyword = null, $arguments = null) |
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{ |
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parent::__construct([], true); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getExpectedResponseCodes() |
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{ |
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return [ |
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Response::INFORMATION_FOLLOWS => 'onListFollows', |
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Response::INVALID_KEYWORD => 'onInvalidKeyword', |
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Response::PROGRAM_ERROR => 'onError', |
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]; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function execute() |
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{ |
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return sprintf('LIST %s %s', $this->keyword, $this->arguments); |
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} |
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/** |
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* Called when the list is received from the server |
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* |
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* @param MultiLineResponse $response |
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*/ |
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public function onListFollows(MultiLineResponse $response) |
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{ |
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$lines = $response->getLines(); |
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$totalLines = count($lines); |
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for ($i = 0; $i < $totalLines; ++$i) { |
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list($name, $high, $low, $status) = explode(' ', $lines[$i]); |
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$this->result[$i] = [ |
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'name' => $name, |
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'high' => $high, |
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'low' => $low, |
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'status' => $status, |
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]; |
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} |
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} |
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public function onInvalidKeyword(Response $response) |
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{ |
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throw new RuntimeException('Invalid keyword, or unexpected argument for keyword.', $response->getStatusCode()); |
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} |
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public function onError(Response $response) |
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{ |
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throw new RuntimeException('Error retrieving group list', $response->getStatusCode()); |
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} |
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} |
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