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- <?php
- namespace PicoFeed\Client;
- use ArrayAccess;
- use PicoFeed\Logging\Logger;
- /**
- * Class to handle HTTP headers case insensitivity.
- *
- * @author Bernhard Posselt
- * @author Frederic Guillot
- */
- class HttpHeaders implements ArrayAccess
- {
- private $headers = array();
- public function __construct(array $headers)
- {
- foreach ($headers as $key => $value) {
- $this->headers[strtolower($key)] = $value;
- }
- }
- public function offsetGet($offset)
- {
- return $this->offsetExists($offset) ? $this->headers[strtolower($offset)] : '';
- }
- public function offsetSet($offset, $value)
- {
- $this->headers[strtolower($offset)] = $value;
- }
- public function offsetExists($offset)
- {
- return isset($this->headers[strtolower($offset)]);
- }
- public function offsetUnset($offset)
- {
- unset($this->headers[strtolower($offset)]);
- }
- /**
- * Parse HTTP headers.
- *
- * @static
- *
- * @param array $lines List of headers
- *
- * @return array
- */
- public static function parse(array $lines)
- {
- $status = 0;
- $headers = array();
- foreach ($lines as $line) {
- if (strpos($line, 'HTTP/1') === 0) {
- $headers = array();
- $status = (int) substr($line, 9, 3);
- } elseif (strpos($line, ': ') !== false) {
- list($name, $value) = explode(': ', $line);
- if ($value) {
- $headers[trim($name)] = trim($value);
- }
- }
- }
- Logger::setMessage(get_called_class().' HTTP status code: '.$status);
- foreach ($headers as $name => $value) {
- Logger::setMessage(get_called_class().' HTTP header: '.$name.' => '.$value);
- }
- return array($status, new self($headers));
- }
- }
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