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<?php |
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/** |
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* @category Brownie/HttpClient |
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* @author Brownie <[email protected]> |
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* @license http://www.gnu.org/copyleft/lesser.html |
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*/ |
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namespace Brownie\HttpClient; |
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/** |
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* HTTP headers collection. |
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*/ |
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class Headers |
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{ |
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/** |
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* All headers at once. |
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* |
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* @var null|string |
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*/ |
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private $headerString = null; |
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/** |
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* Headers container as an array. |
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* |
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* @var null|array |
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*/ |
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private $headerList = null; |
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/** |
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* Sets incoming values. |
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* |
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* @param $headerString |
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*/ |
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public function __construct($headerString) |
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{ |
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$this->setHeaderString(trim($headerString)); |
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} |
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/** |
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* Sets all headers at string. |
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* Returns the current object. |
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* |
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* @param string $headerString All headers at string. |
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* |
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* @return self |
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*/ |
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private function setHeaderString($headerString) |
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{ |
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$this->headerString = $headerString; |
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return $this; |
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} |
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/** |
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* Returns all headers at string. |
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* |
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* @return null|string |
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*/ |
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public function toString() |
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{ |
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return $this->headerString; |
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} |
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/** |
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* Sets headers container. |
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* Returns the current object. |
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* |
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* @param array $headerList Headers container as an array. |
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* |
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* @return self |
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*/ |
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private function setHeaderList(array $headerList) |
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{ |
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$this->headerList = $headerList; |
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return $this; |
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} |
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/** |
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* Return the headers container as an array. |
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* |
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* @return array|null |
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*/ |
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public function getHeaderList() |
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{ |
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if (empty($this->headerList)) { |
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$this->setHeaderList($this->initHeaderList()); |
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} |
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return $this->headerList; |
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} |
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/** |
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* Gets header of by name. |
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* |
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* @param string $name Header name. |
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* @param mixed $defaultValue Default header value. |
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* |
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* @return string|mixed |
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*/ |
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public function get($name, $defaultValue = null) |
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{ |
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$headerList = $this->getHeaderList(); |
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$name = strtolower($name); |
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if (empty($headerList[$name])) { |
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return $defaultValue; |
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} |
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return $headerList[$name]; |
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} |
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/** |
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* Initializing the headers container. |
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* Returns headers container. |
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* |
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* @return array |
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*/ |
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private function initHeaderList() |
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{ |
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$headerList = array(); |
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foreach (explode("\r\n", $this->toString()) as $index => $headerLine) { |
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if (0 == $index) { |
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continue; |
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} |
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list($key, $value) = explode(':', trim($headerLine), 2); |
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$headerList[strtolower(trim($key))] = trim($value); |
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} |
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$this->setHeaderList($headerList); |
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return $headerList; |
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} |
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} |
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